From a50f49d2c8cbcefea9432628eb3c370c5bd29570 Mon Sep 17 00:00:00 2001 From: Isaac Shoebottom Date: Mon, 31 Oct 2022 10:10:52 -0300 Subject: [PATCH] Add python venv --- utils/python-venv/.gitignore | 4 + .../site-packages/_distutils_hack/__init__.py | 166 + .../site-packages/_distutils_hack/override.py | 1 + .../Lib/site-packages/_pytest/__init__.py | 9 + .../Lib/site-packages/_pytest/_argcomplete.py | 116 + .../site-packages/_pytest/_code/__init__.py | 22 + .../Lib/site-packages/_pytest/_code/code.py | 1292 +++ .../Lib/site-packages/_pytest/_code/source.py | 217 + .../Lib/site-packages/_pytest/_io/__init__.py | 8 + .../Lib/site-packages/_pytest/_io/saferepr.py | 180 + .../_pytest/_io/terminalwriter.py | 233 + .../Lib/site-packages/_pytest/_io/wcwidth.py | 55 + .../Lib/site-packages/_pytest/_py/__init__.py | 0 .../Lib/site-packages/_pytest/_py/error.py | 109 + .../Lib/site-packages/_pytest/_py/path.py | 1474 +++ .../Lib/site-packages/_pytest/_version.py | 5 + 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b/utils/python-venv/.gitignore @@ -0,0 +1,4 @@ +# created by virtualenv automatically + +# Commit venv because it is shared between all of python environments for this class +# * diff --git a/utils/python-venv/Lib/site-packages/_distutils_hack/__init__.py b/utils/python-venv/Lib/site-packages/_distutils_hack/__init__.py new file mode 100644 index 0000000..c0170d0 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_distutils_hack/__init__.py @@ -0,0 +1,166 @@ +import sys +import os +import re +import importlib +import warnings +import contextlib + + +is_pypy = '__pypy__' in sys.builtin_module_names + + +warnings.filterwarnings('ignore', + r'.+ distutils\b.+ deprecated', + DeprecationWarning) + + +def warn_distutils_present(): + if 'distutils' not in sys.modules: + return + if is_pypy and sys.version_info < (3, 7): + # PyPy for 3.6 unconditionally imports distutils, so bypass the warning + # https://foss.heptapod.net/pypy/pypy/-/blob/be829135bc0d758997b3566062999ee8b23872b4/lib-python/3/site.py#L250 + return + warnings.warn( + "Distutils was imported before Setuptools, but importing Setuptools " + "also replaces the `distutils` module in `sys.modules`. This may lead " + "to undesirable behaviors or errors. To avoid these issues, avoid " + "using distutils directly, ensure that setuptools is installed in the " + "traditional way (e.g. not an editable install), and/or make sure " + "that setuptools is always imported before distutils.") + + +def clear_distutils(): + if 'distutils' not in sys.modules: + return + warnings.warn("Setuptools is replacing distutils.") + mods = [name for name in sys.modules if re.match(r'distutils\b', name)] + for name in mods: + del sys.modules[name] + + +def enabled(): + """ + Allow selection of distutils by environment variable. + """ + which = os.environ.get('SETUPTOOLS_USE_DISTUTILS', 'local') + return which == 'local' + + +def ensure_local_distutils(): + clear_distutils() + + # With the DistutilsMetaFinder in place, + # perform an import to cause distutils to be + # loaded from setuptools._distutils. Ref #2906. + with shim(): + importlib.import_module('distutils') + + # check that submodules load as expected + core = importlib.import_module('distutils.core') + assert '_distutils' in core.__file__, core.__file__ + + +def do_override(): + """ + Ensure that the local copy of distutils is preferred over stdlib. + + See https://github.com/pypa/setuptools/issues/417#issuecomment-392298401 + for more motivation. + """ + if enabled(): + warn_distutils_present() + ensure_local_distutils() + + +class DistutilsMetaFinder: + def find_spec(self, fullname, path, target=None): + if path is not None: + return + + method_name = 'spec_for_{fullname}'.format(**locals()) + method = getattr(self, method_name, lambda: None) + return method() + + def spec_for_distutils(self): + import importlib.abc + import importlib.util + + try: + mod = importlib.import_module('setuptools._distutils') + except Exception: + # There are a couple of cases where setuptools._distutils + # may not be present: + # - An older Setuptools without a local distutils is + # taking precedence. Ref #2957. + # - Path manipulation during sitecustomize removes + # setuptools from the path but only after the hook + # has been loaded. Ref #2980. + # In either case, fall back to stdlib behavior. + return + + class DistutilsLoader(importlib.abc.Loader): + + def create_module(self, spec): + return mod + + def exec_module(self, module): + pass + + return importlib.util.spec_from_loader('distutils', DistutilsLoader()) + + def spec_for_pip(self): + """ + Ensure stdlib distutils when running under pip. + See pypa/pip#8761 for rationale. + """ + if self.pip_imported_during_build(): + return + clear_distutils() + self.spec_for_distutils = lambda: None + + @classmethod + def pip_imported_during_build(cls): + """ + Detect if pip is being imported in a build script. Ref #2355. + """ + import traceback + return any( + cls.frame_file_is_setup(frame) + for frame, line in traceback.walk_stack(None) + ) + + @staticmethod + def frame_file_is_setup(frame): + """ + Return True if the indicated frame suggests a setup.py file. + """ + # some frames may not have __file__ (#2940) + return frame.f_globals.get('__file__', '').endswith('setup.py') + + +DISTUTILS_FINDER = DistutilsMetaFinder() + + +def add_shim(): + DISTUTILS_FINDER in sys.meta_path or insert_shim() + + +@contextlib.contextmanager +def shim(): + insert_shim() + try: + yield + finally: + remove_shim() + + +def insert_shim(): + sys.meta_path.insert(0, DISTUTILS_FINDER) + + +def remove_shim(): + try: + sys.meta_path.remove(DISTUTILS_FINDER) + except ValueError: + pass diff --git a/utils/python-venv/Lib/site-packages/_distutils_hack/override.py b/utils/python-venv/Lib/site-packages/_distutils_hack/override.py new file mode 100644 index 0000000..2cc433a --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_distutils_hack/override.py @@ -0,0 +1 @@ +__import__('_distutils_hack').do_override() diff --git a/utils/python-venv/Lib/site-packages/_pytest/__init__.py b/utils/python-venv/Lib/site-packages/_pytest/__init__.py new file mode 100644 index 0000000..8a406c5 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/__init__.py @@ -0,0 +1,9 @@ +__all__ = ["__version__", "version_tuple"] + +try: + from ._version import version as __version__, version_tuple +except ImportError: # pragma: no cover + # broken installation, we don't even try + # unknown only works because we do poor mans version compare + __version__ = "unknown" + version_tuple = (0, 0, "unknown") # type:ignore[assignment] diff --git a/utils/python-venv/Lib/site-packages/_pytest/_argcomplete.py b/utils/python-venv/Lib/site-packages/_pytest/_argcomplete.py new file mode 100644 index 0000000..120f09f --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_argcomplete.py @@ -0,0 +1,116 @@ +"""Allow bash-completion for argparse with argcomplete if installed. + +Needs argcomplete>=0.5.6 for python 3.2/3.3 (older versions fail +to find the magic string, so _ARGCOMPLETE env. var is never set, and +this does not need special code). + +Function try_argcomplete(parser) should be called directly before +the call to ArgumentParser.parse_args(). + +The filescompleter is what you normally would use on the positional +arguments specification, in order to get "dirname/" after "dirn" +instead of the default "dirname ": + + optparser.add_argument(Config._file_or_dir, nargs='*').completer=filescompleter + +Other, application specific, completers should go in the file +doing the add_argument calls as they need to be specified as .completer +attributes as well. (If argcomplete is not installed, the function the +attribute points to will not be used). + +SPEEDUP +======= + +The generic argcomplete script for bash-completion +(/etc/bash_completion.d/python-argcomplete.sh) +uses a python program to determine startup script generated by pip. +You can speed up completion somewhat by changing this script to include + # PYTHON_ARGCOMPLETE_OK +so the python-argcomplete-check-easy-install-script does not +need to be called to find the entry point of the code and see if that is +marked with PYTHON_ARGCOMPLETE_OK. + +INSTALL/DEBUGGING +================= + +To include this support in another application that has setup.py generated +scripts: + +- Add the line: + # PYTHON_ARGCOMPLETE_OK + near the top of the main python entry point. + +- Include in the file calling parse_args(): + from _argcomplete import try_argcomplete, filescompleter + Call try_argcomplete just before parse_args(), and optionally add + filescompleter to the positional arguments' add_argument(). + +If things do not work right away: + +- Switch on argcomplete debugging with (also helpful when doing custom + completers): + export _ARC_DEBUG=1 + +- Run: + python-argcomplete-check-easy-install-script $(which appname) + echo $? + will echo 0 if the magic line has been found, 1 if not. + +- Sometimes it helps to find early on errors using: + _ARGCOMPLETE=1 _ARC_DEBUG=1 appname + which should throw a KeyError: 'COMPLINE' (which is properly set by the + global argcomplete script). +""" +import argparse +import os +import sys +from glob import glob +from typing import Any +from typing import List +from typing import Optional + + +class FastFilesCompleter: + """Fast file completer class.""" + + def __init__(self, directories: bool = True) -> None: + self.directories = directories + + def __call__(self, prefix: str, **kwargs: Any) -> List[str]: + # Only called on non option completions. + if os.path.sep in prefix[1:]: + prefix_dir = len(os.path.dirname(prefix) + os.path.sep) + else: + prefix_dir = 0 + completion = [] + globbed = [] + if "*" not in prefix and "?" not in prefix: + # We are on unix, otherwise no bash. + if not prefix or prefix[-1] == os.path.sep: + globbed.extend(glob(prefix + ".*")) + prefix += "*" + globbed.extend(glob(prefix)) + for x in sorted(globbed): + if os.path.isdir(x): + x += "/" + # Append stripping the prefix (like bash, not like compgen). + completion.append(x[prefix_dir:]) + return completion + + +if os.environ.get("_ARGCOMPLETE"): + try: + import argcomplete.completers + except ImportError: + sys.exit(-1) + filescompleter: Optional[FastFilesCompleter] = FastFilesCompleter() + + def try_argcomplete(parser: argparse.ArgumentParser) -> None: + argcomplete.autocomplete(parser, always_complete_options=False) + +else: + + def try_argcomplete(parser: argparse.ArgumentParser) -> None: + pass + + filescompleter = None diff --git a/utils/python-venv/Lib/site-packages/_pytest/_code/__init__.py b/utils/python-venv/Lib/site-packages/_pytest/_code/__init__.py new file mode 100644 index 0000000..511d0dd --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_code/__init__.py @@ -0,0 +1,22 @@ +"""Python inspection/code generation API.""" +from .code import Code +from .code import ExceptionInfo +from .code import filter_traceback +from .code import Frame +from .code import getfslineno +from .code import Traceback +from .code import TracebackEntry +from .source import getrawcode +from .source import Source + +__all__ = [ + "Code", + "ExceptionInfo", + "filter_traceback", + "Frame", + "getfslineno", + "getrawcode", + "Traceback", + "TracebackEntry", + "Source", +] diff --git a/utils/python-venv/Lib/site-packages/_pytest/_code/code.py b/utils/python-venv/Lib/site-packages/_pytest/_code/code.py new file mode 100644 index 0000000..97985de --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_code/code.py @@ -0,0 +1,1292 @@ +import ast +import inspect +import os +import re +import sys +import traceback +from inspect import CO_VARARGS +from inspect import CO_VARKEYWORDS +from io import StringIO +from pathlib import Path +from traceback import format_exception_only +from types import CodeType +from types import FrameType +from types import TracebackType +from typing import Any +from typing import Callable +from typing import ClassVar +from typing import Dict +from typing import Generic +from typing import Iterable +from typing import List +from typing import Mapping +from typing import Optional +from typing import overload +from typing import Pattern +from typing import Sequence +from typing import Set +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import TypeVar +from typing import Union +from weakref import ref + +import attr +import pluggy + +import _pytest +from _pytest._code.source import findsource +from _pytest._code.source import getrawcode +from _pytest._code.source import getstatementrange_ast +from _pytest._code.source import Source +from _pytest._io import TerminalWriter +from _pytest._io.saferepr import safeformat +from _pytest._io.saferepr import saferepr +from _pytest.compat import final +from _pytest.compat import get_real_func +from _pytest.deprecated import check_ispytest +from _pytest.pathlib import absolutepath +from _pytest.pathlib import bestrelpath + +if TYPE_CHECKING: + from typing_extensions import Literal + from typing_extensions import SupportsIndex + from weakref import ReferenceType + + _TracebackStyle = Literal["long", "short", "line", "no", "native", "value", "auto"] + +if sys.version_info[:2] < (3, 11): + from exceptiongroup import BaseExceptionGroup + + +class Code: + """Wrapper around Python code objects.""" + + __slots__ = ("raw",) + + def __init__(self, obj: CodeType) -> None: + self.raw = obj + + @classmethod + def from_function(cls, obj: object) -> "Code": + return cls(getrawcode(obj)) + + def __eq__(self, other): + return self.raw == other.raw + + # Ignore type because of https://github.com/python/mypy/issues/4266. + __hash__ = None # type: ignore + + @property + def firstlineno(self) -> int: + return self.raw.co_firstlineno - 1 + + @property + def name(self) -> str: + return self.raw.co_name + + @property + def path(self) -> Union[Path, str]: + """Return a path object pointing to source code, or an ``str`` in + case of ``OSError`` / non-existing file.""" + if not self.raw.co_filename: + return "" + try: + p = absolutepath(self.raw.co_filename) + # maybe don't try this checking + if not p.exists(): + raise OSError("path check failed.") + return p + except OSError: + # XXX maybe try harder like the weird logic + # in the standard lib [linecache.updatecache] does? + return self.raw.co_filename + + @property + def fullsource(self) -> Optional["Source"]: + """Return a _pytest._code.Source object for the full source file of the code.""" + full, _ = findsource(self.raw) + return full + + def source(self) -> "Source": + """Return a _pytest._code.Source object for the code object's source only.""" + # return source only for that part of code + return Source(self.raw) + + def getargs(self, var: bool = False) -> Tuple[str, ...]: + """Return a tuple with the argument names for the code object. + + If 'var' is set True also return the names of the variable and + keyword arguments when present. + """ + # Handy shortcut for getting args. + raw = self.raw + argcount = raw.co_argcount + if var: + argcount += raw.co_flags & CO_VARARGS + argcount += raw.co_flags & CO_VARKEYWORDS + return raw.co_varnames[:argcount] + + +class Frame: + """Wrapper around a Python frame holding f_locals and f_globals + in which expressions can be evaluated.""" + + __slots__ = ("raw",) + + def __init__(self, frame: FrameType) -> None: + self.raw = frame + + @property + def lineno(self) -> int: + return self.raw.f_lineno - 1 + + @property + def f_globals(self) -> Dict[str, Any]: + return self.raw.f_globals + + @property + def f_locals(self) -> Dict[str, Any]: + return self.raw.f_locals + + @property + def code(self) -> Code: + return Code(self.raw.f_code) + + @property + def statement(self) -> "Source": + """Statement this frame is at.""" + if self.code.fullsource is None: + return Source("") + return self.code.fullsource.getstatement(self.lineno) + + def eval(self, code, **vars): + """Evaluate 'code' in the frame. + + 'vars' are optional additional local variables. + + Returns the result of the evaluation. + """ + f_locals = self.f_locals.copy() + f_locals.update(vars) + return eval(code, self.f_globals, f_locals) + + def repr(self, object: object) -> str: + """Return a 'safe' (non-recursive, one-line) string repr for 'object'.""" + return saferepr(object) + + def getargs(self, var: bool = False): + """Return a list of tuples (name, value) for all arguments. + + If 'var' is set True, also include the variable and keyword arguments + when present. + """ + retval = [] + for arg in self.code.getargs(var): + try: + retval.append((arg, self.f_locals[arg])) + except KeyError: + pass # this can occur when using Psyco + return retval + + +class TracebackEntry: + """A single entry in a Traceback.""" + + __slots__ = ("_rawentry", "_excinfo", "_repr_style") + + def __init__( + self, + rawentry: TracebackType, + excinfo: Optional["ReferenceType[ExceptionInfo[BaseException]]"] = None, + ) -> None: + self._rawentry = rawentry + self._excinfo = excinfo + self._repr_style: Optional['Literal["short", "long"]'] = None + + @property + def lineno(self) -> int: + return self._rawentry.tb_lineno - 1 + + def set_repr_style(self, mode: "Literal['short', 'long']") -> None: + assert mode in ("short", "long") + self._repr_style = mode + + @property + def frame(self) -> Frame: + return Frame(self._rawentry.tb_frame) + + @property + def relline(self) -> int: + return self.lineno - self.frame.code.firstlineno + + def __repr__(self) -> str: + return "" % (self.frame.code.path, self.lineno + 1) + + @property + def statement(self) -> "Source": + """_pytest._code.Source object for the current statement.""" + source = self.frame.code.fullsource + assert source is not None + return source.getstatement(self.lineno) + + @property + def path(self) -> Union[Path, str]: + """Path to the source code.""" + return self.frame.code.path + + @property + def locals(self) -> Dict[str, Any]: + """Locals of underlying frame.""" + return self.frame.f_locals + + def getfirstlinesource(self) -> int: + return self.frame.code.firstlineno + + def getsource( + self, astcache: Optional[Dict[Union[str, Path], ast.AST]] = None + ) -> Optional["Source"]: + """Return failing source code.""" + # we use the passed in astcache to not reparse asttrees + # within exception info printing + source = self.frame.code.fullsource + if source is None: + return None + key = astnode = None + if astcache is not None: + key = self.frame.code.path + if key is not None: + astnode = astcache.get(key, None) + start = self.getfirstlinesource() + try: + astnode, _, end = getstatementrange_ast( + self.lineno, source, astnode=astnode + ) + except SyntaxError: + end = self.lineno + 1 + else: + if key is not None and astcache is not None: + astcache[key] = astnode + return source[start:end] + + source = property(getsource) + + def ishidden(self) -> bool: + """Return True if the current frame has a var __tracebackhide__ + resolving to True. + + If __tracebackhide__ is a callable, it gets called with the + ExceptionInfo instance and can decide whether to hide the traceback. + + Mostly for internal use. + """ + tbh: Union[ + bool, Callable[[Optional[ExceptionInfo[BaseException]]], bool] + ] = False + for maybe_ns_dct in (self.frame.f_locals, self.frame.f_globals): + # in normal cases, f_locals and f_globals are dictionaries + # however via `exec(...)` / `eval(...)` they can be other types + # (even incorrect types!). + # as such, we suppress all exceptions while accessing __tracebackhide__ + try: + tbh = maybe_ns_dct["__tracebackhide__"] + except Exception: + pass + else: + break + if tbh and callable(tbh): + return tbh(None if self._excinfo is None else self._excinfo()) + return tbh + + def __str__(self) -> str: + name = self.frame.code.name + try: + line = str(self.statement).lstrip() + except KeyboardInterrupt: + raise + except BaseException: + line = "???" + # This output does not quite match Python's repr for traceback entries, + # but changing it to do so would break certain plugins. See + # https://github.com/pytest-dev/pytest/pull/7535/ for details. + return " File %r:%d in %s\n %s\n" % ( + str(self.path), + self.lineno + 1, + name, + line, + ) + + @property + def name(self) -> str: + """co_name of underlying code.""" + return self.frame.code.raw.co_name + + +class Traceback(List[TracebackEntry]): + """Traceback objects encapsulate and offer higher level access to Traceback entries.""" + + def __init__( + self, + tb: Union[TracebackType, Iterable[TracebackEntry]], + excinfo: Optional["ReferenceType[ExceptionInfo[BaseException]]"] = None, + ) -> None: + """Initialize from given python traceback object and ExceptionInfo.""" + self._excinfo = excinfo + if isinstance(tb, TracebackType): + + def f(cur: TracebackType) -> Iterable[TracebackEntry]: + cur_: Optional[TracebackType] = cur + while cur_ is not None: + yield TracebackEntry(cur_, excinfo=excinfo) + cur_ = cur_.tb_next + + super().__init__(f(tb)) + else: + super().__init__(tb) + + def cut( + self, + path: Optional[Union["os.PathLike[str]", str]] = None, + lineno: Optional[int] = None, + firstlineno: Optional[int] = None, + excludepath: Optional["os.PathLike[str]"] = None, + ) -> "Traceback": + """Return a Traceback instance wrapping part of this Traceback. + + By providing any combination of path, lineno and firstlineno, the + first frame to start the to-be-returned traceback is determined. + + This allows cutting the first part of a Traceback instance e.g. + for formatting reasons (removing some uninteresting bits that deal + with handling of the exception/traceback). + """ + path_ = None if path is None else os.fspath(path) + excludepath_ = None if excludepath is None else os.fspath(excludepath) + for x in self: + code = x.frame.code + codepath = code.path + if path is not None and str(codepath) != path_: + continue + if ( + excludepath is not None + and isinstance(codepath, Path) + and excludepath_ in (str(p) for p in codepath.parents) # type: ignore[operator] + ): + continue + if lineno is not None and x.lineno != lineno: + continue + if firstlineno is not None and x.frame.code.firstlineno != firstlineno: + continue + return Traceback(x._rawentry, self._excinfo) + return self + + @overload + def __getitem__(self, key: "SupportsIndex") -> TracebackEntry: + ... + + @overload + def __getitem__(self, key: slice) -> "Traceback": + ... + + def __getitem__( + self, key: Union["SupportsIndex", slice] + ) -> Union[TracebackEntry, "Traceback"]: + if isinstance(key, slice): + return self.__class__(super().__getitem__(key)) + else: + return super().__getitem__(key) + + def filter( + self, fn: Callable[[TracebackEntry], bool] = lambda x: not x.ishidden() + ) -> "Traceback": + """Return a Traceback instance with certain items removed + + fn is a function that gets a single argument, a TracebackEntry + instance, and should return True when the item should be added + to the Traceback, False when not. + + By default this removes all the TracebackEntries which are hidden + (see ishidden() above). + """ + return Traceback(filter(fn, self), self._excinfo) + + def getcrashentry(self) -> TracebackEntry: + """Return last non-hidden traceback entry that lead to the exception of a traceback.""" + for i in range(-1, -len(self) - 1, -1): + entry = self[i] + if not entry.ishidden(): + return entry + return self[-1] + + def recursionindex(self) -> Optional[int]: + """Return the index of the frame/TracebackEntry where recursion originates if + appropriate, None if no recursion occurred.""" + cache: Dict[Tuple[Any, int, int], List[Dict[str, Any]]] = {} + for i, entry in enumerate(self): + # id for the code.raw is needed to work around + # the strange metaprogramming in the decorator lib from pypi + # which generates code objects that have hash/value equality + # XXX needs a test + key = entry.frame.code.path, id(entry.frame.code.raw), entry.lineno + # print "checking for recursion at", key + values = cache.setdefault(key, []) + if values: + f = entry.frame + loc = f.f_locals + for otherloc in values: + if otherloc == loc: + return i + values.append(entry.frame.f_locals) + return None + + +E = TypeVar("E", bound=BaseException, covariant=True) + + +@final +@attr.s(repr=False, init=False, auto_attribs=True) +class ExceptionInfo(Generic[E]): + """Wraps sys.exc_info() objects and offers help for navigating the traceback.""" + + _assert_start_repr: ClassVar = "AssertionError('assert " + + _excinfo: Optional[Tuple[Type["E"], "E", TracebackType]] + _striptext: str + _traceback: Optional[Traceback] + + def __init__( + self, + excinfo: Optional[Tuple[Type["E"], "E", TracebackType]], + striptext: str = "", + traceback: Optional[Traceback] = None, + *, + _ispytest: bool = False, + ) -> None: + check_ispytest(_ispytest) + self._excinfo = excinfo + self._striptext = striptext + self._traceback = traceback + + @classmethod + def from_exc_info( + cls, + exc_info: Tuple[Type[E], E, TracebackType], + exprinfo: Optional[str] = None, + ) -> "ExceptionInfo[E]": + """Return an ExceptionInfo for an existing exc_info tuple. + + .. warning:: + + Experimental API + + :param exprinfo: + A text string helping to determine if we should strip + ``AssertionError`` from the output. Defaults to the exception + message/``__str__()``. + """ + _striptext = "" + if exprinfo is None and isinstance(exc_info[1], AssertionError): + exprinfo = getattr(exc_info[1], "msg", None) + if exprinfo is None: + exprinfo = saferepr(exc_info[1]) + if exprinfo and exprinfo.startswith(cls._assert_start_repr): + _striptext = "AssertionError: " + + return cls(exc_info, _striptext, _ispytest=True) + + @classmethod + def from_current( + cls, exprinfo: Optional[str] = None + ) -> "ExceptionInfo[BaseException]": + """Return an ExceptionInfo matching the current traceback. + + .. warning:: + + Experimental API + + :param exprinfo: + A text string helping to determine if we should strip + ``AssertionError`` from the output. Defaults to the exception + message/``__str__()``. + """ + tup = sys.exc_info() + assert tup[0] is not None, "no current exception" + assert tup[1] is not None, "no current exception" + assert tup[2] is not None, "no current exception" + exc_info = (tup[0], tup[1], tup[2]) + return ExceptionInfo.from_exc_info(exc_info, exprinfo) + + @classmethod + def for_later(cls) -> "ExceptionInfo[E]": + """Return an unfilled ExceptionInfo.""" + return cls(None, _ispytest=True) + + def fill_unfilled(self, exc_info: Tuple[Type[E], E, TracebackType]) -> None: + """Fill an unfilled ExceptionInfo created with ``for_later()``.""" + assert self._excinfo is None, "ExceptionInfo was already filled" + self._excinfo = exc_info + + @property + def type(self) -> Type[E]: + """The exception class.""" + assert ( + self._excinfo is not None + ), ".type can only be used after the context manager exits" + return self._excinfo[0] + + @property + def value(self) -> E: + """The exception value.""" + assert ( + self._excinfo is not None + ), ".value can only be used after the context manager exits" + return self._excinfo[1] + + @property + def tb(self) -> TracebackType: + """The exception raw traceback.""" + assert ( + self._excinfo is not None + ), ".tb can only be used after the context manager exits" + return self._excinfo[2] + + @property + def typename(self) -> str: + """The type name of the exception.""" + assert ( + self._excinfo is not None + ), ".typename can only be used after the context manager exits" + return self.type.__name__ + + @property + def traceback(self) -> Traceback: + """The traceback.""" + if self._traceback is None: + self._traceback = Traceback(self.tb, excinfo=ref(self)) + return self._traceback + + @traceback.setter + def traceback(self, value: Traceback) -> None: + self._traceback = value + + def __repr__(self) -> str: + if self._excinfo is None: + return "" + return "<{} {} tblen={}>".format( + self.__class__.__name__, saferepr(self._excinfo[1]), len(self.traceback) + ) + + def exconly(self, tryshort: bool = False) -> str: + """Return the exception as a string. + + When 'tryshort' resolves to True, and the exception is an + AssertionError, only the actual exception part of the exception + representation is returned (so 'AssertionError: ' is removed from + the beginning). + """ + lines = format_exception_only(self.type, self.value) + text = "".join(lines) + text = text.rstrip() + if tryshort: + if text.startswith(self._striptext): + text = text[len(self._striptext) :] + return text + + def errisinstance( + self, exc: Union[Type[BaseException], Tuple[Type[BaseException], ...]] + ) -> bool: + """Return True if the exception is an instance of exc. + + Consider using ``isinstance(excinfo.value, exc)`` instead. + """ + return isinstance(self.value, exc) + + def _getreprcrash(self) -> "ReprFileLocation": + exconly = self.exconly(tryshort=True) + entry = self.traceback.getcrashentry() + path, lineno = entry.frame.code.raw.co_filename, entry.lineno + return ReprFileLocation(path, lineno + 1, exconly) + + def getrepr( + self, + showlocals: bool = False, + style: "_TracebackStyle" = "long", + abspath: bool = False, + tbfilter: bool = True, + funcargs: bool = False, + truncate_locals: bool = True, + chain: bool = True, + ) -> Union["ReprExceptionInfo", "ExceptionChainRepr"]: + """Return str()able representation of this exception info. + + :param bool showlocals: + Show locals per traceback entry. + Ignored if ``style=="native"``. + + :param str style: + long|short|no|native|value traceback style. + + :param bool abspath: + If paths should be changed to absolute or left unchanged. + + :param bool tbfilter: + Hide entries that contain a local variable ``__tracebackhide__==True``. + Ignored if ``style=="native"``. + + :param bool funcargs: + Show fixtures ("funcargs" for legacy purposes) per traceback entry. + + :param bool truncate_locals: + With ``showlocals==True``, make sure locals can be safely represented as strings. + + :param bool chain: + If chained exceptions in Python 3 should be shown. + + .. versionchanged:: 3.9 + + Added the ``chain`` parameter. + """ + if style == "native": + return ReprExceptionInfo( + ReprTracebackNative( + traceback.format_exception( + self.type, self.value, self.traceback[0]._rawentry + ) + ), + self._getreprcrash(), + ) + + fmt = FormattedExcinfo( + showlocals=showlocals, + style=style, + abspath=abspath, + tbfilter=tbfilter, + funcargs=funcargs, + truncate_locals=truncate_locals, + chain=chain, + ) + return fmt.repr_excinfo(self) + + def match(self, regexp: Union[str, Pattern[str]]) -> "Literal[True]": + """Check whether the regular expression `regexp` matches the string + representation of the exception using :func:`python:re.search`. + + If it matches `True` is returned, otherwise an `AssertionError` is raised. + """ + __tracebackhide__ = True + value = str(self.value) + msg = f"Regex pattern did not match.\n Regex: {regexp!r}\n Input: {value!r}" + if regexp == value: + msg += "\n Did you mean to `re.escape()` the regex?" + assert re.search(regexp, value), msg + # Return True to allow for "assert excinfo.match()". + return True + + +@attr.s(auto_attribs=True) +class FormattedExcinfo: + """Presenting information about failing Functions and Generators.""" + + # for traceback entries + flow_marker: ClassVar = ">" + fail_marker: ClassVar = "E" + + showlocals: bool = False + style: "_TracebackStyle" = "long" + abspath: bool = True + tbfilter: bool = True + funcargs: bool = False + truncate_locals: bool = True + chain: bool = True + astcache: Dict[Union[str, Path], ast.AST] = attr.ib( + factory=dict, init=False, repr=False + ) + + def _getindent(self, source: "Source") -> int: + # Figure out indent for the given source. + try: + s = str(source.getstatement(len(source) - 1)) + except KeyboardInterrupt: + raise + except BaseException: + try: + s = str(source[-1]) + except KeyboardInterrupt: + raise + except BaseException: + return 0 + return 4 + (len(s) - len(s.lstrip())) + + def _getentrysource(self, entry: TracebackEntry) -> Optional["Source"]: + source = entry.getsource(self.astcache) + if source is not None: + source = source.deindent() + return source + + def repr_args(self, entry: TracebackEntry) -> Optional["ReprFuncArgs"]: + if self.funcargs: + args = [] + for argname, argvalue in entry.frame.getargs(var=True): + args.append((argname, saferepr(argvalue))) + return ReprFuncArgs(args) + return None + + def get_source( + self, + source: Optional["Source"], + line_index: int = -1, + excinfo: Optional[ExceptionInfo[BaseException]] = None, + short: bool = False, + ) -> List[str]: + """Return formatted and marked up source lines.""" + lines = [] + if source is None or line_index >= len(source.lines): + source = Source("???") + line_index = 0 + if line_index < 0: + line_index += len(source) + space_prefix = " " + if short: + lines.append(space_prefix + source.lines[line_index].strip()) + else: + for line in source.lines[:line_index]: + lines.append(space_prefix + line) + lines.append(self.flow_marker + " " + source.lines[line_index]) + for line in source.lines[line_index + 1 :]: + lines.append(space_prefix + line) + if excinfo is not None: + indent = 4 if short else self._getindent(source) + lines.extend(self.get_exconly(excinfo, indent=indent, markall=True)) + return lines + + def get_exconly( + self, + excinfo: ExceptionInfo[BaseException], + indent: int = 4, + markall: bool = False, + ) -> List[str]: + lines = [] + indentstr = " " * indent + # Get the real exception information out. + exlines = excinfo.exconly(tryshort=True).split("\n") + failindent = self.fail_marker + indentstr[1:] + for line in exlines: + lines.append(failindent + line) + if not markall: + failindent = indentstr + return lines + + def repr_locals(self, locals: Mapping[str, object]) -> Optional["ReprLocals"]: + if self.showlocals: + lines = [] + keys = [loc for loc in locals if loc[0] != "@"] + keys.sort() + for name in keys: + value = locals[name] + if name == "__builtins__": + lines.append("__builtins__ = ") + else: + # This formatting could all be handled by the + # _repr() function, which is only reprlib.Repr in + # disguise, so is very configurable. + if self.truncate_locals: + str_repr = saferepr(value) + else: + str_repr = safeformat(value) + # if len(str_repr) < 70 or not isinstance(value, (list, tuple, dict)): + lines.append(f"{name:<10} = {str_repr}") + # else: + # self._line("%-10s =\\" % (name,)) + # # XXX + # pprint.pprint(value, stream=self.excinfowriter) + return ReprLocals(lines) + return None + + def repr_traceback_entry( + self, + entry: TracebackEntry, + excinfo: Optional[ExceptionInfo[BaseException]] = None, + ) -> "ReprEntry": + lines: List[str] = [] + style = entry._repr_style if entry._repr_style is not None else self.style + if style in ("short", "long"): + source = self._getentrysource(entry) + if source is None: + source = Source("???") + line_index = 0 + else: + line_index = entry.lineno - entry.getfirstlinesource() + short = style == "short" + reprargs = self.repr_args(entry) if not short else None + s = self.get_source(source, line_index, excinfo, short=short) + lines.extend(s) + if short: + message = "in %s" % (entry.name) + else: + message = excinfo and excinfo.typename or "" + entry_path = entry.path + path = self._makepath(entry_path) + reprfileloc = ReprFileLocation(path, entry.lineno + 1, message) + localsrepr = self.repr_locals(entry.locals) + return ReprEntry(lines, reprargs, localsrepr, reprfileloc, style) + elif style == "value": + if excinfo: + lines.extend(str(excinfo.value).split("\n")) + return ReprEntry(lines, None, None, None, style) + else: + if excinfo: + lines.extend(self.get_exconly(excinfo, indent=4)) + return ReprEntry(lines, None, None, None, style) + + def _makepath(self, path: Union[Path, str]) -> str: + if not self.abspath and isinstance(path, Path): + try: + np = bestrelpath(Path.cwd(), path) + except OSError: + return str(path) + if len(np) < len(str(path)): + return np + return str(path) + + def repr_traceback(self, excinfo: ExceptionInfo[BaseException]) -> "ReprTraceback": + traceback = excinfo.traceback + if self.tbfilter: + traceback = traceback.filter() + + if isinstance(excinfo.value, RecursionError): + traceback, extraline = self._truncate_recursive_traceback(traceback) + else: + extraline = None + + last = traceback[-1] + entries = [] + if self.style == "value": + reprentry = self.repr_traceback_entry(last, excinfo) + entries.append(reprentry) + return ReprTraceback(entries, None, style=self.style) + + for index, entry in enumerate(traceback): + einfo = (last == entry) and excinfo or None + reprentry = self.repr_traceback_entry(entry, einfo) + entries.append(reprentry) + return ReprTraceback(entries, extraline, style=self.style) + + def _truncate_recursive_traceback( + self, traceback: Traceback + ) -> Tuple[Traceback, Optional[str]]: + """Truncate the given recursive traceback trying to find the starting + point of the recursion. + + The detection is done by going through each traceback entry and + finding the point in which the locals of the frame are equal to the + locals of a previous frame (see ``recursionindex()``). + + Handle the situation where the recursion process might raise an + exception (for example comparing numpy arrays using equality raises a + TypeError), in which case we do our best to warn the user of the + error and show a limited traceback. + """ + try: + recursionindex = traceback.recursionindex() + except Exception as e: + max_frames = 10 + extraline: Optional[str] = ( + "!!! Recursion error detected, but an error occurred locating the origin of recursion.\n" + " The following exception happened when comparing locals in the stack frame:\n" + " {exc_type}: {exc_msg}\n" + " Displaying first and last {max_frames} stack frames out of {total}." + ).format( + exc_type=type(e).__name__, + exc_msg=str(e), + max_frames=max_frames, + total=len(traceback), + ) + # Type ignored because adding two instances of a List subtype + # currently incorrectly has type List instead of the subtype. + traceback = traceback[:max_frames] + traceback[-max_frames:] # type: ignore + else: + if recursionindex is not None: + extraline = "!!! Recursion detected (same locals & position)" + traceback = traceback[: recursionindex + 1] + else: + extraline = None + + return traceback, extraline + + def repr_excinfo( + self, excinfo: ExceptionInfo[BaseException] + ) -> "ExceptionChainRepr": + repr_chain: List[ + Tuple[ReprTraceback, Optional[ReprFileLocation], Optional[str]] + ] = [] + e: Optional[BaseException] = excinfo.value + excinfo_: Optional[ExceptionInfo[BaseException]] = excinfo + descr = None + seen: Set[int] = set() + while e is not None and id(e) not in seen: + seen.add(id(e)) + if excinfo_: + # Fall back to native traceback as a temporary workaround until + # full support for exception groups added to ExceptionInfo. + # See https://github.com/pytest-dev/pytest/issues/9159 + if isinstance(e, BaseExceptionGroup): + reprtraceback: Union[ + ReprTracebackNative, ReprTraceback + ] = ReprTracebackNative( + traceback.format_exception( + type(excinfo_.value), + excinfo_.value, + excinfo_.traceback[0]._rawentry, + ) + ) + else: + reprtraceback = self.repr_traceback(excinfo_) + reprcrash: Optional[ReprFileLocation] = ( + excinfo_._getreprcrash() if self.style != "value" else None + ) + else: + # Fallback to native repr if the exception doesn't have a traceback: + # ExceptionInfo objects require a full traceback to work. + reprtraceback = ReprTracebackNative( + traceback.format_exception(type(e), e, None) + ) + reprcrash = None + + repr_chain += [(reprtraceback, reprcrash, descr)] + if e.__cause__ is not None and self.chain: + e = e.__cause__ + excinfo_ = ( + ExceptionInfo.from_exc_info((type(e), e, e.__traceback__)) + if e.__traceback__ + else None + ) + descr = "The above exception was the direct cause of the following exception:" + elif ( + e.__context__ is not None and not e.__suppress_context__ and self.chain + ): + e = e.__context__ + excinfo_ = ( + ExceptionInfo.from_exc_info((type(e), e, e.__traceback__)) + if e.__traceback__ + else None + ) + descr = "During handling of the above exception, another exception occurred:" + else: + e = None + repr_chain.reverse() + return ExceptionChainRepr(repr_chain) + + +@attr.s(eq=False, auto_attribs=True) +class TerminalRepr: + def __str__(self) -> str: + # FYI this is called from pytest-xdist's serialization of exception + # information. + io = StringIO() + tw = TerminalWriter(file=io) + self.toterminal(tw) + return io.getvalue().strip() + + def __repr__(self) -> str: + return f"<{self.__class__} instance at {id(self):0x}>" + + def toterminal(self, tw: TerminalWriter) -> None: + raise NotImplementedError() + + +# This class is abstract -- only subclasses are instantiated. +@attr.s(eq=False) +class ExceptionRepr(TerminalRepr): + # Provided by subclasses. + reprcrash: Optional["ReprFileLocation"] + reprtraceback: "ReprTraceback" + + def __attrs_post_init__(self) -> None: + self.sections: List[Tuple[str, str, str]] = [] + + def addsection(self, name: str, content: str, sep: str = "-") -> None: + self.sections.append((name, content, sep)) + + def toterminal(self, tw: TerminalWriter) -> None: + for name, content, sep in self.sections: + tw.sep(sep, name) + tw.line(content) + + +@attr.s(eq=False, auto_attribs=True) +class ExceptionChainRepr(ExceptionRepr): + chain: Sequence[Tuple["ReprTraceback", Optional["ReprFileLocation"], Optional[str]]] + + def __attrs_post_init__(self) -> None: + super().__attrs_post_init__() + # reprcrash and reprtraceback of the outermost (the newest) exception + # in the chain. + self.reprtraceback = self.chain[-1][0] + self.reprcrash = self.chain[-1][1] + + def toterminal(self, tw: TerminalWriter) -> None: + for element in self.chain: + element[0].toterminal(tw) + if element[2] is not None: + tw.line("") + tw.line(element[2], yellow=True) + super().toterminal(tw) + + +@attr.s(eq=False, auto_attribs=True) +class ReprExceptionInfo(ExceptionRepr): + reprtraceback: "ReprTraceback" + reprcrash: "ReprFileLocation" + + def toterminal(self, tw: TerminalWriter) -> None: + self.reprtraceback.toterminal(tw) + super().toterminal(tw) + + +@attr.s(eq=False, auto_attribs=True) +class ReprTraceback(TerminalRepr): + reprentries: Sequence[Union["ReprEntry", "ReprEntryNative"]] + extraline: Optional[str] + style: "_TracebackStyle" + + entrysep: ClassVar = "_ " + + def toterminal(self, tw: TerminalWriter) -> None: + # The entries might have different styles. + for i, entry in enumerate(self.reprentries): + if entry.style == "long": + tw.line("") + entry.toterminal(tw) + if i < len(self.reprentries) - 1: + next_entry = self.reprentries[i + 1] + if ( + entry.style == "long" + or entry.style == "short" + and next_entry.style == "long" + ): + tw.sep(self.entrysep) + + if self.extraline: + tw.line(self.extraline) + + +class ReprTracebackNative(ReprTraceback): + def __init__(self, tblines: Sequence[str]) -> None: + self.style = "native" + self.reprentries = [ReprEntryNative(tblines)] + self.extraline = None + + +@attr.s(eq=False, auto_attribs=True) +class ReprEntryNative(TerminalRepr): + lines: Sequence[str] + + style: ClassVar["_TracebackStyle"] = "native" + + def toterminal(self, tw: TerminalWriter) -> None: + tw.write("".join(self.lines)) + + +@attr.s(eq=False, auto_attribs=True) +class ReprEntry(TerminalRepr): + lines: Sequence[str] + reprfuncargs: Optional["ReprFuncArgs"] + reprlocals: Optional["ReprLocals"] + reprfileloc: Optional["ReprFileLocation"] + style: "_TracebackStyle" + + def _write_entry_lines(self, tw: TerminalWriter) -> None: + """Write the source code portions of a list of traceback entries with syntax highlighting. + + Usually entries are lines like these: + + " x = 1" + "> assert x == 2" + "E assert 1 == 2" + + This function takes care of rendering the "source" portions of it (the lines without + the "E" prefix) using syntax highlighting, taking care to not highlighting the ">" + character, as doing so might break line continuations. + """ + + if not self.lines: + return + + # separate indents and source lines that are not failures: we want to + # highlight the code but not the indentation, which may contain markers + # such as "> assert 0" + fail_marker = f"{FormattedExcinfo.fail_marker} " + indent_size = len(fail_marker) + indents: List[str] = [] + source_lines: List[str] = [] + failure_lines: List[str] = [] + for index, line in enumerate(self.lines): + is_failure_line = line.startswith(fail_marker) + if is_failure_line: + # from this point on all lines are considered part of the failure + failure_lines.extend(self.lines[index:]) + break + else: + if self.style == "value": + source_lines.append(line) + else: + indents.append(line[:indent_size]) + source_lines.append(line[indent_size:]) + + tw._write_source(source_lines, indents) + + # failure lines are always completely red and bold + for line in failure_lines: + tw.line(line, bold=True, red=True) + + def toterminal(self, tw: TerminalWriter) -> None: + if self.style == "short": + assert self.reprfileloc is not None + self.reprfileloc.toterminal(tw) + self._write_entry_lines(tw) + if self.reprlocals: + self.reprlocals.toterminal(tw, indent=" " * 8) + return + + if self.reprfuncargs: + self.reprfuncargs.toterminal(tw) + + self._write_entry_lines(tw) + + if self.reprlocals: + tw.line("") + self.reprlocals.toterminal(tw) + if self.reprfileloc: + if self.lines: + tw.line("") + self.reprfileloc.toterminal(tw) + + def __str__(self) -> str: + return "{}\n{}\n{}".format( + "\n".join(self.lines), self.reprlocals, self.reprfileloc + ) + + +@attr.s(eq=False, auto_attribs=True) +class ReprFileLocation(TerminalRepr): + path: str = attr.ib(converter=str) + lineno: int + message: str + + def toterminal(self, tw: TerminalWriter) -> None: + # Filename and lineno output for each entry, using an output format + # that most editors understand. + msg = self.message + i = msg.find("\n") + if i != -1: + msg = msg[:i] + tw.write(self.path, bold=True, red=True) + tw.line(f":{self.lineno}: {msg}") + + +@attr.s(eq=False, auto_attribs=True) +class ReprLocals(TerminalRepr): + lines: Sequence[str] + + def toterminal(self, tw: TerminalWriter, indent="") -> None: + for line in self.lines: + tw.line(indent + line) + + +@attr.s(eq=False, auto_attribs=True) +class ReprFuncArgs(TerminalRepr): + args: Sequence[Tuple[str, object]] + + def toterminal(self, tw: TerminalWriter) -> None: + if self.args: + linesofar = "" + for name, value in self.args: + ns = f"{name} = {value}" + if len(ns) + len(linesofar) + 2 > tw.fullwidth: + if linesofar: + tw.line(linesofar) + linesofar = ns + else: + if linesofar: + linesofar += ", " + ns + else: + linesofar = ns + if linesofar: + tw.line(linesofar) + tw.line("") + + +def getfslineno(obj: object) -> Tuple[Union[str, Path], int]: + """Return source location (path, lineno) for the given object. + + If the source cannot be determined return ("", -1). + + The line number is 0-based. + """ + # xxx let decorators etc specify a sane ordering + # NOTE: this used to be done in _pytest.compat.getfslineno, initially added + # in 6ec13a2b9. It ("place_as") appears to be something very custom. + obj = get_real_func(obj) + if hasattr(obj, "place_as"): + obj = obj.place_as # type: ignore[attr-defined] + + try: + code = Code.from_function(obj) + except TypeError: + try: + fn = inspect.getsourcefile(obj) or inspect.getfile(obj) # type: ignore[arg-type] + except TypeError: + return "", -1 + + fspath = fn and absolutepath(fn) or "" + lineno = -1 + if fspath: + try: + _, lineno = findsource(obj) + except OSError: + pass + return fspath, lineno + + return code.path, code.firstlineno + + +# Relative paths that we use to filter traceback entries from appearing to the user; +# see filter_traceback. +# note: if we need to add more paths than what we have now we should probably use a list +# for better maintenance. + +_PLUGGY_DIR = Path(pluggy.__file__.rstrip("oc")) +# pluggy is either a package or a single module depending on the version +if _PLUGGY_DIR.name == "__init__.py": + _PLUGGY_DIR = _PLUGGY_DIR.parent +_PYTEST_DIR = Path(_pytest.__file__).parent + + +def filter_traceback(entry: TracebackEntry) -> bool: + """Return True if a TracebackEntry instance should be included in tracebacks. + + We hide traceback entries of: + + * dynamically generated code (no code to show up for it); + * internal traceback from pytest or its internal libraries, py and pluggy. + """ + # entry.path might sometimes return a str object when the entry + # points to dynamically generated code. + # See https://bitbucket.org/pytest-dev/py/issues/71. + raw_filename = entry.frame.code.raw.co_filename + is_generated = "<" in raw_filename and ">" in raw_filename + if is_generated: + return False + + # entry.path might point to a non-existing file, in which case it will + # also return a str object. See #1133. + p = Path(entry.path) + + parents = p.parents + if _PLUGGY_DIR in parents: + return False + if _PYTEST_DIR in parents: + return False + + return True diff --git a/utils/python-venv/Lib/site-packages/_pytest/_code/source.py b/utils/python-venv/Lib/site-packages/_pytest/_code/source.py new file mode 100644 index 0000000..208cfb8 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_code/source.py @@ -0,0 +1,217 @@ +import ast +import inspect +import textwrap +import tokenize +import types +import warnings +from bisect import bisect_right +from typing import Iterable +from typing import Iterator +from typing import List +from typing import Optional +from typing import overload +from typing import Tuple +from typing import Union + + +class Source: + """An immutable object holding a source code fragment. + + When using Source(...), the source lines are deindented. + """ + + def __init__(self, obj: object = None) -> None: + if not obj: + self.lines: List[str] = [] + elif isinstance(obj, Source): + self.lines = obj.lines + elif isinstance(obj, (tuple, list)): + self.lines = deindent(x.rstrip("\n") for x in obj) + elif isinstance(obj, str): + self.lines = deindent(obj.split("\n")) + else: + try: + rawcode = getrawcode(obj) + src = inspect.getsource(rawcode) + except TypeError: + src = inspect.getsource(obj) # type: ignore[arg-type] + self.lines = deindent(src.split("\n")) + + def __eq__(self, other: object) -> bool: + if not isinstance(other, Source): + return NotImplemented + return self.lines == other.lines + + # Ignore type because of https://github.com/python/mypy/issues/4266. + __hash__ = None # type: ignore + + @overload + def __getitem__(self, key: int) -> str: + ... + + @overload + def __getitem__(self, key: slice) -> "Source": + ... + + def __getitem__(self, key: Union[int, slice]) -> Union[str, "Source"]: + if isinstance(key, int): + return self.lines[key] + else: + if key.step not in (None, 1): + raise IndexError("cannot slice a Source with a step") + newsource = Source() + newsource.lines = self.lines[key.start : key.stop] + return newsource + + def __iter__(self) -> Iterator[str]: + return iter(self.lines) + + def __len__(self) -> int: + return len(self.lines) + + def strip(self) -> "Source": + """Return new Source object with trailing and leading blank lines removed.""" + start, end = 0, len(self) + while start < end and not self.lines[start].strip(): + start += 1 + while end > start and not self.lines[end - 1].strip(): + end -= 1 + source = Source() + source.lines[:] = self.lines[start:end] + return source + + def indent(self, indent: str = " " * 4) -> "Source": + """Return a copy of the source object with all lines indented by the + given indent-string.""" + newsource = Source() + newsource.lines = [(indent + line) for line in self.lines] + return newsource + + def getstatement(self, lineno: int) -> "Source": + """Return Source statement which contains the given linenumber + (counted from 0).""" + start, end = self.getstatementrange(lineno) + return self[start:end] + + def getstatementrange(self, lineno: int) -> Tuple[int, int]: + """Return (start, end) tuple which spans the minimal statement region + which containing the given lineno.""" + if not (0 <= lineno < len(self)): + raise IndexError("lineno out of range") + ast, start, end = getstatementrange_ast(lineno, self) + return start, end + + def deindent(self) -> "Source": + """Return a new Source object deindented.""" + newsource = Source() + newsource.lines[:] = deindent(self.lines) + return newsource + + def __str__(self) -> str: + return "\n".join(self.lines) + + +# +# helper functions +# + + +def findsource(obj) -> Tuple[Optional[Source], int]: + try: + sourcelines, lineno = inspect.findsource(obj) + except Exception: + return None, -1 + source = Source() + source.lines = [line.rstrip() for line in sourcelines] + return source, lineno + + +def getrawcode(obj: object, trycall: bool = True) -> types.CodeType: + """Return code object for given function.""" + try: + return obj.__code__ # type: ignore[attr-defined,no-any-return] + except AttributeError: + pass + if trycall: + call = getattr(obj, "__call__", None) + if call and not isinstance(obj, type): + return getrawcode(call, trycall=False) + raise TypeError(f"could not get code object for {obj!r}") + + +def deindent(lines: Iterable[str]) -> List[str]: + return textwrap.dedent("\n".join(lines)).splitlines() + + +def get_statement_startend2(lineno: int, node: ast.AST) -> Tuple[int, Optional[int]]: + # Flatten all statements and except handlers into one lineno-list. + # AST's line numbers start indexing at 1. + values: List[int] = [] + for x in ast.walk(node): + if isinstance(x, (ast.stmt, ast.ExceptHandler)): + # Before Python 3.8, the lineno of a decorated class or function pointed at the decorator. + # Since Python 3.8, the lineno points to the class/def, so need to include the decorators. + if isinstance(x, (ast.ClassDef, ast.FunctionDef, ast.AsyncFunctionDef)): + for d in x.decorator_list: + values.append(d.lineno - 1) + values.append(x.lineno - 1) + for name in ("finalbody", "orelse"): + val: Optional[List[ast.stmt]] = getattr(x, name, None) + if val: + # Treat the finally/orelse part as its own statement. + values.append(val[0].lineno - 1 - 1) + values.sort() + insert_index = bisect_right(values, lineno) + start = values[insert_index - 1] + if insert_index >= len(values): + end = None + else: + end = values[insert_index] + return start, end + + +def getstatementrange_ast( + lineno: int, + source: Source, + assertion: bool = False, + astnode: Optional[ast.AST] = None, +) -> Tuple[ast.AST, int, int]: + if astnode is None: + content = str(source) + # See #4260: + # Don't produce duplicate warnings when compiling source to find AST. + with warnings.catch_warnings(): + warnings.simplefilter("ignore") + astnode = ast.parse(content, "source", "exec") + + start, end = get_statement_startend2(lineno, astnode) + # We need to correct the end: + # - ast-parsing strips comments + # - there might be empty lines + # - we might have lesser indented code blocks at the end + if end is None: + end = len(source.lines) + + if end > start + 1: + # Make sure we don't span differently indented code blocks + # by using the BlockFinder helper used which inspect.getsource() uses itself. + block_finder = inspect.BlockFinder() + # If we start with an indented line, put blockfinder to "started" mode. + block_finder.started = source.lines[start][0].isspace() + it = ((x + "\n") for x in source.lines[start:end]) + try: + for tok in tokenize.generate_tokens(lambda: next(it)): + block_finder.tokeneater(*tok) + except (inspect.EndOfBlock, IndentationError): + end = block_finder.last + start + except Exception: + pass + + # The end might still point to a comment or empty line, correct it. + while end: + line = source.lines[end - 1].lstrip() + if line.startswith("#") or not line: + end -= 1 + else: + break + return astnode, start, end diff --git a/utils/python-venv/Lib/site-packages/_pytest/_io/__init__.py b/utils/python-venv/Lib/site-packages/_pytest/_io/__init__.py new file mode 100644 index 0000000..db001e9 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_io/__init__.py @@ -0,0 +1,8 @@ +from .terminalwriter import get_terminal_width +from .terminalwriter import TerminalWriter + + +__all__ = [ + "TerminalWriter", + "get_terminal_width", +] diff --git a/utils/python-venv/Lib/site-packages/_pytest/_io/saferepr.py b/utils/python-venv/Lib/site-packages/_pytest/_io/saferepr.py new file mode 100644 index 0000000..c701872 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_io/saferepr.py @@ -0,0 +1,180 @@ +import pprint +import reprlib +from typing import Any +from typing import Dict +from typing import IO +from typing import Optional + + +def _try_repr_or_str(obj: object) -> str: + try: + return repr(obj) + except (KeyboardInterrupt, SystemExit): + raise + except BaseException: + return f'{type(obj).__name__}("{obj}")' + + +def _format_repr_exception(exc: BaseException, obj: object) -> str: + try: + exc_info = _try_repr_or_str(exc) + except (KeyboardInterrupt, SystemExit): + raise + except BaseException as exc: + exc_info = f"unpresentable exception ({_try_repr_or_str(exc)})" + return "<[{} raised in repr()] {} object at 0x{:x}>".format( + exc_info, type(obj).__name__, id(obj) + ) + + +def _ellipsize(s: str, maxsize: int) -> str: + if len(s) > maxsize: + i = max(0, (maxsize - 3) // 2) + j = max(0, maxsize - 3 - i) + return s[:i] + "..." + s[len(s) - j :] + return s + + +class SafeRepr(reprlib.Repr): + """ + repr.Repr that limits the resulting size of repr() and includes + information on exceptions raised during the call. + """ + + def __init__(self, maxsize: Optional[int], use_ascii: bool = False) -> None: + """ + :param maxsize: + If not None, will truncate the resulting repr to that specific size, using ellipsis + somewhere in the middle to hide the extra text. + If None, will not impose any size limits on the returning repr. + """ + super().__init__() + # ``maxstring`` is used by the superclass, and needs to be an int; using a + # very large number in case maxsize is None, meaning we want to disable + # truncation. + self.maxstring = maxsize if maxsize is not None else 1_000_000_000 + self.maxsize = maxsize + self.use_ascii = use_ascii + + def repr(self, x: object) -> str: + try: + if self.use_ascii: + s = ascii(x) + else: + s = super().repr(x) + + except (KeyboardInterrupt, SystemExit): + raise + except BaseException as exc: + s = _format_repr_exception(exc, x) + if self.maxsize is not None: + s = _ellipsize(s, self.maxsize) + return s + + def repr_instance(self, x: object, level: int) -> str: + try: + s = repr(x) + except (KeyboardInterrupt, SystemExit): + raise + except BaseException as exc: + s = _format_repr_exception(exc, x) + if self.maxsize is not None: + s = _ellipsize(s, self.maxsize) + return s + + +def safeformat(obj: object) -> str: + """Return a pretty printed string for the given object. + + Failing __repr__ functions of user instances will be represented + with a short exception info. + """ + try: + return pprint.pformat(obj) + except Exception as exc: + return _format_repr_exception(exc, obj) + + +# Maximum size of overall repr of objects to display during assertion errors. +DEFAULT_REPR_MAX_SIZE = 240 + + +def saferepr( + obj: object, maxsize: Optional[int] = DEFAULT_REPR_MAX_SIZE, use_ascii: bool = False +) -> str: + """Return a size-limited safe repr-string for the given object. + + Failing __repr__ functions of user instances will be represented + with a short exception info and 'saferepr' generally takes + care to never raise exceptions itself. + + This function is a wrapper around the Repr/reprlib functionality of the + stdlib. + """ + + return SafeRepr(maxsize, use_ascii).repr(obj) + + +def saferepr_unlimited(obj: object, use_ascii: bool = True) -> str: + """Return an unlimited-size safe repr-string for the given object. + + As with saferepr, failing __repr__ functions of user instances + will be represented with a short exception info. + + This function is a wrapper around simple repr. + + Note: a cleaner solution would be to alter ``saferepr``this way + when maxsize=None, but that might affect some other code. + """ + try: + if use_ascii: + return ascii(obj) + return repr(obj) + except Exception as exc: + return _format_repr_exception(exc, obj) + + +class AlwaysDispatchingPrettyPrinter(pprint.PrettyPrinter): + """PrettyPrinter that always dispatches (regardless of width).""" + + def _format( + self, + object: object, + stream: IO[str], + indent: int, + allowance: int, + context: Dict[int, Any], + level: int, + ) -> None: + # Type ignored because _dispatch is private. + p = self._dispatch.get(type(object).__repr__, None) # type: ignore[attr-defined] + + objid = id(object) + if objid in context or p is None: + # Type ignored because _format is private. + super()._format( # type: ignore[misc] + object, + stream, + indent, + allowance, + context, + level, + ) + return + + context[objid] = 1 + p(self, object, stream, indent, allowance, context, level + 1) + del context[objid] + + +def _pformat_dispatch( + object: object, + indent: int = 1, + width: int = 80, + depth: Optional[int] = None, + *, + compact: bool = False, +) -> str: + return AlwaysDispatchingPrettyPrinter( + indent=indent, width=width, depth=depth, compact=compact + ).pformat(object) diff --git a/utils/python-venv/Lib/site-packages/_pytest/_io/terminalwriter.py b/utils/python-venv/Lib/site-packages/_pytest/_io/terminalwriter.py new file mode 100644 index 0000000..379035d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_io/terminalwriter.py @@ -0,0 +1,233 @@ +"""Helper functions for writing to terminals and files.""" +import os +import shutil +import sys +from typing import Optional +from typing import Sequence +from typing import TextIO + +from .wcwidth import wcswidth +from _pytest.compat import final + + +# This code was initially copied from py 1.8.1, file _io/terminalwriter.py. + + +def get_terminal_width() -> int: + width, _ = shutil.get_terminal_size(fallback=(80, 24)) + + # The Windows get_terminal_size may be bogus, let's sanify a bit. + if width < 40: + width = 80 + + return width + + +def should_do_markup(file: TextIO) -> bool: + if os.environ.get("PY_COLORS") == "1": + return True + if os.environ.get("PY_COLORS") == "0": + return False + if "NO_COLOR" in os.environ: + return False + if "FORCE_COLOR" in os.environ: + return True + return ( + hasattr(file, "isatty") and file.isatty() and os.environ.get("TERM") != "dumb" + ) + + +@final +class TerminalWriter: + _esctable = dict( + black=30, + red=31, + green=32, + yellow=33, + blue=34, + purple=35, + cyan=36, + white=37, + Black=40, + Red=41, + Green=42, + Yellow=43, + Blue=44, + Purple=45, + Cyan=46, + White=47, + bold=1, + light=2, + blink=5, + invert=7, + ) + + def __init__(self, file: Optional[TextIO] = None) -> None: + if file is None: + file = sys.stdout + if hasattr(file, "isatty") and file.isatty() and sys.platform == "win32": + try: + import colorama + except ImportError: + pass + else: + file = colorama.AnsiToWin32(file).stream + assert file is not None + self._file = file + self.hasmarkup = should_do_markup(file) + self._current_line = "" + self._terminal_width: Optional[int] = None + self.code_highlight = True + + @property + def fullwidth(self) -> int: + if self._terminal_width is not None: + return self._terminal_width + return get_terminal_width() + + @fullwidth.setter + def fullwidth(self, value: int) -> None: + self._terminal_width = value + + @property + def width_of_current_line(self) -> int: + """Return an estimate of the width so far in the current line.""" + return wcswidth(self._current_line) + + def markup(self, text: str, **markup: bool) -> str: + for name in markup: + if name not in self._esctable: + raise ValueError(f"unknown markup: {name!r}") + if self.hasmarkup: + esc = [self._esctable[name] for name, on in markup.items() if on] + if esc: + text = "".join("\x1b[%sm" % cod for cod in esc) + text + "\x1b[0m" + return text + + def sep( + self, + sepchar: str, + title: Optional[str] = None, + fullwidth: Optional[int] = None, + **markup: bool, + ) -> None: + if fullwidth is None: + fullwidth = self.fullwidth + # The goal is to have the line be as long as possible + # under the condition that len(line) <= fullwidth. + if sys.platform == "win32": + # If we print in the last column on windows we are on a + # new line but there is no way to verify/neutralize this + # (we may not know the exact line width). + # So let's be defensive to avoid empty lines in the output. + fullwidth -= 1 + if title is not None: + # we want 2 + 2*len(fill) + len(title) <= fullwidth + # i.e. 2 + 2*len(sepchar)*N + len(title) <= fullwidth + # 2*len(sepchar)*N <= fullwidth - len(title) - 2 + # N <= (fullwidth - len(title) - 2) // (2*len(sepchar)) + N = max((fullwidth - len(title) - 2) // (2 * len(sepchar)), 1) + fill = sepchar * N + line = f"{fill} {title} {fill}" + else: + # we want len(sepchar)*N <= fullwidth + # i.e. N <= fullwidth // len(sepchar) + line = sepchar * (fullwidth // len(sepchar)) + # In some situations there is room for an extra sepchar at the right, + # in particular if we consider that with a sepchar like "_ " the + # trailing space is not important at the end of the line. + if len(line) + len(sepchar.rstrip()) <= fullwidth: + line += sepchar.rstrip() + + self.line(line, **markup) + + def write(self, msg: str, *, flush: bool = False, **markup: bool) -> None: + if msg: + current_line = msg.rsplit("\n", 1)[-1] + if "\n" in msg: + self._current_line = current_line + else: + self._current_line += current_line + + msg = self.markup(msg, **markup) + + try: + self._file.write(msg) + except UnicodeEncodeError: + # Some environments don't support printing general Unicode + # strings, due to misconfiguration or otherwise; in that case, + # print the string escaped to ASCII. + # When the Unicode situation improves we should consider + # letting the error propagate instead of masking it (see #7475 + # for one brief attempt). + msg = msg.encode("unicode-escape").decode("ascii") + self._file.write(msg) + + if flush: + self.flush() + + def line(self, s: str = "", **markup: bool) -> None: + self.write(s, **markup) + self.write("\n") + + def flush(self) -> None: + self._file.flush() + + def _write_source(self, lines: Sequence[str], indents: Sequence[str] = ()) -> None: + """Write lines of source code possibly highlighted. + + Keeping this private for now because the API is clunky. We should discuss how + to evolve the terminal writer so we can have more precise color support, for example + being able to write part of a line in one color and the rest in another, and so on. + """ + if indents and len(indents) != len(lines): + raise ValueError( + "indents size ({}) should have same size as lines ({})".format( + len(indents), len(lines) + ) + ) + if not indents: + indents = [""] * len(lines) + source = "\n".join(lines) + new_lines = self._highlight(source).splitlines() + for indent, new_line in zip(indents, new_lines): + self.line(indent + new_line) + + def _highlight(self, source: str) -> str: + """Highlight the given source code if we have markup support.""" + from _pytest.config.exceptions import UsageError + + if not self.hasmarkup or not self.code_highlight: + return source + try: + from pygments.formatters.terminal import TerminalFormatter + from pygments.lexers.python import PythonLexer + from pygments import highlight + import pygments.util + except ImportError: + return source + else: + try: + highlighted: str = highlight( + source, + PythonLexer(), + TerminalFormatter( + bg=os.getenv("PYTEST_THEME_MODE", "dark"), + style=os.getenv("PYTEST_THEME"), + ), + ) + return highlighted + except pygments.util.ClassNotFound: + raise UsageError( + "PYTEST_THEME environment variable had an invalid value: '{}'. " + "Only valid pygment styles are allowed.".format( + os.getenv("PYTEST_THEME") + ) + ) + except pygments.util.OptionError: + raise UsageError( + "PYTEST_THEME_MODE environment variable had an invalid value: '{}'. " + "The only allowed values are 'dark' and 'light'.".format( + os.getenv("PYTEST_THEME_MODE") + ) + ) diff --git a/utils/python-venv/Lib/site-packages/_pytest/_io/wcwidth.py b/utils/python-venv/Lib/site-packages/_pytest/_io/wcwidth.py new file mode 100644 index 0000000..e5c7bf4 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_io/wcwidth.py @@ -0,0 +1,55 @@ +import unicodedata +from functools import lru_cache + + +@lru_cache(100) +def wcwidth(c: str) -> int: + """Determine how many columns are needed to display a character in a terminal. + + Returns -1 if the character is not printable. + Returns 0, 1 or 2 for other characters. + """ + o = ord(c) + + # ASCII fast path. + if 0x20 <= o < 0x07F: + return 1 + + # Some Cf/Zp/Zl characters which should be zero-width. + if ( + o == 0x0000 + or 0x200B <= o <= 0x200F + or 0x2028 <= o <= 0x202E + or 0x2060 <= o <= 0x2063 + ): + return 0 + + category = unicodedata.category(c) + + # Control characters. + if category == "Cc": + return -1 + + # Combining characters with zero width. + if category in ("Me", "Mn"): + return 0 + + # Full/Wide east asian characters. + if unicodedata.east_asian_width(c) in ("F", "W"): + return 2 + + return 1 + + +def wcswidth(s: str) -> int: + """Determine how many columns are needed to display a string in a terminal. + + Returns -1 if the string contains non-printable characters. + """ + width = 0 + for c in unicodedata.normalize("NFC", s): + wc = wcwidth(c) + if wc < 0: + return -1 + width += wc + return width diff --git a/utils/python-venv/Lib/site-packages/_pytest/_py/__init__.py b/utils/python-venv/Lib/site-packages/_pytest/_py/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/utils/python-venv/Lib/site-packages/_pytest/_py/error.py b/utils/python-venv/Lib/site-packages/_pytest/_py/error.py new file mode 100644 index 0000000..0b8f2d5 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_py/error.py @@ -0,0 +1,109 @@ +"""create errno-specific classes for IO or os calls.""" +from __future__ import annotations + +import errno +import os +import sys +from typing import Callable +from typing import TYPE_CHECKING +from typing import TypeVar + +if TYPE_CHECKING: + from typing_extensions import ParamSpec + + P = ParamSpec("P") + +R = TypeVar("R") + + +class Error(EnvironmentError): + def __repr__(self) -> str: + return "{}.{} {!r}: {} ".format( + self.__class__.__module__, + self.__class__.__name__, + self.__class__.__doc__, + " ".join(map(str, self.args)), + # repr(self.args) + ) + + def __str__(self) -> str: + s = "[{}]: {}".format( + self.__class__.__doc__, + " ".join(map(str, self.args)), + ) + return s + + +_winerrnomap = { + 2: errno.ENOENT, + 3: errno.ENOENT, + 17: errno.EEXIST, + 18: errno.EXDEV, + 13: errno.EBUSY, # empty cd drive, but ENOMEDIUM seems unavailiable + 22: errno.ENOTDIR, + 20: errno.ENOTDIR, + 267: errno.ENOTDIR, + 5: errno.EACCES, # anything better? +} + + +class ErrorMaker: + """lazily provides Exception classes for each possible POSIX errno + (as defined per the 'errno' module). All such instances + subclass EnvironmentError. + """ + + _errno2class: dict[int, type[Error]] = {} + + def __getattr__(self, name: str) -> type[Error]: + if name[0] == "_": + raise AttributeError(name) + eno = getattr(errno, name) + cls = self._geterrnoclass(eno) + setattr(self, name, cls) + return cls + + def _geterrnoclass(self, eno: int) -> type[Error]: + try: + return self._errno2class[eno] + except KeyError: + clsname = errno.errorcode.get(eno, "UnknownErrno%d" % (eno,)) + errorcls = type( + clsname, + (Error,), + {"__module__": "py.error", "__doc__": os.strerror(eno)}, + ) + self._errno2class[eno] = errorcls + return errorcls + + def checked_call( + self, func: Callable[P, R], *args: P.args, **kwargs: P.kwargs + ) -> R: + """Call a function and raise an errno-exception if applicable.""" + __tracebackhide__ = True + try: + return func(*args, **kwargs) + except Error: + raise + except OSError as value: + if not hasattr(value, "errno"): + raise + errno = value.errno + if sys.platform == "win32": + try: + cls = self._geterrnoclass(_winerrnomap[errno]) + except KeyError: + raise value + else: + # we are not on Windows, or we got a proper OSError + cls = self._geterrnoclass(errno) + + raise cls(f"{func.__name__}{args!r}") + + +_error_maker = ErrorMaker() +checked_call = _error_maker.checked_call + + +def __getattr__(attr: str) -> type[Error]: + return getattr(_error_maker, attr) # type: ignore[no-any-return] diff --git a/utils/python-venv/Lib/site-packages/_pytest/_py/path.py b/utils/python-venv/Lib/site-packages/_pytest/_py/path.py new file mode 100644 index 0000000..00f1515 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_py/path.py @@ -0,0 +1,1474 @@ +"""local path implementation.""" +from __future__ import annotations + +import atexit +import fnmatch +import importlib.util +import io +import os +import posixpath +import sys +import uuid +import warnings +from contextlib import contextmanager +from os.path import abspath +from os.path import dirname +from os.path import exists +from os.path import isabs +from os.path import isdir +from os.path import isfile +from os.path import islink +from os.path import normpath +from stat import S_ISDIR +from stat import S_ISLNK +from stat import S_ISREG +from typing import Any +from typing import Callable +from typing import overload +from typing import TYPE_CHECKING + +from . import error + +if TYPE_CHECKING: + from typing import Literal + +# Moved from local.py. +iswin32 = sys.platform == "win32" or (getattr(os, "_name", False) == "nt") + + +class Checkers: + _depend_on_existence = "exists", "link", "dir", "file" + + def __init__(self, path): + self.path = path + + def dotfile(self): + return self.path.basename.startswith(".") + + def ext(self, arg): + if not arg.startswith("."): + arg = "." + arg + return self.path.ext == arg + + def basename(self, arg): + return self.path.basename == arg + + def basestarts(self, arg): + return self.path.basename.startswith(arg) + + def relto(self, arg): + return self.path.relto(arg) + + def fnmatch(self, arg): + return self.path.fnmatch(arg) + + def endswith(self, arg): + return str(self.path).endswith(arg) + + def _evaluate(self, kw): + from .._code.source import getrawcode + + for name, value in kw.items(): + invert = False + meth = None + try: + meth = getattr(self, name) + except AttributeError: + if name[:3] == "not": + invert = True + try: + meth = getattr(self, name[3:]) + except AttributeError: + pass + if meth is None: + raise TypeError(f"no {name!r} checker available for {self.path!r}") + try: + if getrawcode(meth).co_argcount > 1: + if (not meth(value)) ^ invert: + return False + else: + if bool(value) ^ bool(meth()) ^ invert: + return False + except (error.ENOENT, error.ENOTDIR, error.EBUSY): + # EBUSY feels not entirely correct, + # but its kind of necessary since ENOMEDIUM + # is not accessible in python + for name in self._depend_on_existence: + if name in kw: + if kw.get(name): + return False + name = "not" + name + if name in kw: + if not kw.get(name): + return False + return True + + _statcache: Stat + + def _stat(self) -> Stat: + try: + return self._statcache + except AttributeError: + try: + self._statcache = self.path.stat() + except error.ELOOP: + self._statcache = self.path.lstat() + return self._statcache + + def dir(self): + return S_ISDIR(self._stat().mode) + + def file(self): + return S_ISREG(self._stat().mode) + + def exists(self): + return self._stat() + + def link(self): + st = self.path.lstat() + return S_ISLNK(st.mode) + + +class NeverRaised(Exception): + pass + + +class Visitor: + def __init__(self, fil, rec, ignore, bf, sort): + if isinstance(fil, str): + fil = FNMatcher(fil) + if isinstance(rec, str): + self.rec: Callable[[LocalPath], bool] = FNMatcher(rec) + elif not hasattr(rec, "__call__") and rec: + self.rec = lambda path: True + else: + self.rec = rec + self.fil = fil + self.ignore = ignore + self.breadthfirst = bf + self.optsort = sort and sorted or (lambda x: x) + + def gen(self, path): + try: + entries = path.listdir() + except self.ignore: + return + rec = self.rec + dirs = self.optsort( + [p for p in entries if p.check(dir=1) and (rec is None or rec(p))] + ) + if not self.breadthfirst: + for subdir in dirs: + for p in self.gen(subdir): + yield p + for p in self.optsort(entries): + if self.fil is None or self.fil(p): + yield p + if self.breadthfirst: + for subdir in dirs: + for p in self.gen(subdir): + yield p + + +class FNMatcher: + def __init__(self, pattern): + self.pattern = pattern + + def __call__(self, path): + pattern = self.pattern + + if ( + pattern.find(path.sep) == -1 + and iswin32 + and pattern.find(posixpath.sep) != -1 + ): + # Running on Windows, the pattern has no Windows path separators, + # and the pattern has one or more Posix path separators. Replace + # the Posix path separators with the Windows path separator. + pattern = pattern.replace(posixpath.sep, path.sep) + + if pattern.find(path.sep) == -1: + name = path.basename + else: + name = str(path) # path.strpath # XXX svn? + if not os.path.isabs(pattern): + pattern = "*" + path.sep + pattern + return fnmatch.fnmatch(name, pattern) + + +def map_as_list(func, iter): + return list(map(func, iter)) + + +class Stat: + if TYPE_CHECKING: + + @property + def size(self) -> int: + ... + + @property + def mtime(self) -> float: + ... + + def __getattr__(self, name: str) -> Any: + return getattr(self._osstatresult, "st_" + name) + + def __init__(self, path, osstatresult): + self.path = path + self._osstatresult = osstatresult + + @property + def owner(self): + if iswin32: + raise NotImplementedError("XXX win32") + import pwd + + entry = error.checked_call(pwd.getpwuid, self.uid) + return entry[0] + + @property + def group(self): + """Return group name of file.""" + if iswin32: + raise NotImplementedError("XXX win32") + import grp + + entry = error.checked_call(grp.getgrgid, self.gid) + return entry[0] + + def isdir(self): + return S_ISDIR(self._osstatresult.st_mode) + + def isfile(self): + return S_ISREG(self._osstatresult.st_mode) + + def islink(self): + self.path.lstat() + return S_ISLNK(self._osstatresult.st_mode) + + +def getuserid(user): + import pwd + + if not isinstance(user, int): + user = pwd.getpwnam(user)[2] + return user + + +def getgroupid(group): + import grp + + if not isinstance(group, int): + group = grp.getgrnam(group)[2] + return group + + +class LocalPath: + """Object oriented interface to os.path and other local filesystem + related information. + """ + + class ImportMismatchError(ImportError): + """raised on pyimport() if there is a mismatch of __file__'s""" + + sep = os.sep + + def __init__(self, path=None, expanduser=False): + """Initialize and return a local Path instance. + + Path can be relative to the current directory. + If path is None it defaults to the current working directory. + If expanduser is True, tilde-expansion is performed. + Note that Path instances always carry an absolute path. + Note also that passing in a local path object will simply return + the exact same path object. Use new() to get a new copy. + """ + if path is None: + self.strpath = error.checked_call(os.getcwd) + else: + try: + path = os.fspath(path) + except TypeError: + raise ValueError( + "can only pass None, Path instances " + "or non-empty strings to LocalPath" + ) + if expanduser: + path = os.path.expanduser(path) + self.strpath = abspath(path) + + if sys.platform != "win32": + + def chown(self, user, group, rec=0): + """Change ownership to the given user and group. + user and group may be specified by a number or + by a name. if rec is True change ownership + recursively. + """ + uid = getuserid(user) + gid = getgroupid(group) + if rec: + for x in self.visit(rec=lambda x: x.check(link=0)): + if x.check(link=0): + error.checked_call(os.chown, str(x), uid, gid) + error.checked_call(os.chown, str(self), uid, gid) + + def readlink(self) -> str: + """Return value of a symbolic link.""" + # https://github.com/python/mypy/issues/12278 + return error.checked_call(os.readlink, self.strpath) # type: ignore[arg-type,return-value] + + def mklinkto(self, oldname): + """Posix style hard link to another name.""" + error.checked_call(os.link, str(oldname), str(self)) + + def mksymlinkto(self, value, absolute=1): + """Create a symbolic link with the given value (pointing to another name).""" + if absolute: + error.checked_call(os.symlink, str(value), self.strpath) + else: + base = self.common(value) + # with posix local paths '/' is always a common base + relsource = self.__class__(value).relto(base) + reldest = self.relto(base) + n = reldest.count(self.sep) + target = self.sep.join(("..",) * n + (relsource,)) + error.checked_call(os.symlink, target, self.strpath) + + def __div__(self, other): + return self.join(os.fspath(other)) + + __truediv__ = __div__ # py3k + + @property + def basename(self): + """Basename part of path.""" + return self._getbyspec("basename")[0] + + @property + def dirname(self): + """Dirname part of path.""" + return self._getbyspec("dirname")[0] + + @property + def purebasename(self): + """Pure base name of the path.""" + return self._getbyspec("purebasename")[0] + + @property + def ext(self): + """Extension of the path (including the '.').""" + return self._getbyspec("ext")[0] + + def read_binary(self): + """Read and return a bytestring from reading the path.""" + with self.open("rb") as f: + return f.read() + + def read_text(self, encoding): + """Read and return a Unicode string from reading the path.""" + with self.open("r", encoding=encoding) as f: + return f.read() + + def read(self, mode="r"): + """Read and return a bytestring from reading the path.""" + with self.open(mode) as f: + return f.read() + + def readlines(self, cr=1): + """Read and return a list of lines from the path. if cr is False, the + newline will be removed from the end of each line.""" + mode = "r" + + if not cr: + content = self.read(mode) + return content.split("\n") + else: + f = self.open(mode) + try: + return f.readlines() + finally: + f.close() + + def load(self): + """(deprecated) return object unpickled from self.read()""" + f = self.open("rb") + try: + import pickle + + return error.checked_call(pickle.load, f) + finally: + f.close() + + def move(self, target): + """Move this path to target.""" + if target.relto(self): + raise error.EINVAL(target, "cannot move path into a subdirectory of itself") + try: + self.rename(target) + except error.EXDEV: # invalid cross-device link + self.copy(target) + self.remove() + + def fnmatch(self, pattern): + """Return true if the basename/fullname matches the glob-'pattern'. + + valid pattern characters:: + + * matches everything + ? matches any single character + [seq] matches any character in seq + [!seq] matches any char not in seq + + If the pattern contains a path-separator then the full path + is used for pattern matching and a '*' is prepended to the + pattern. + + if the pattern doesn't contain a path-separator the pattern + is only matched against the basename. + """ + return FNMatcher(pattern)(self) + + def relto(self, relpath): + """Return a string which is the relative part of the path + to the given 'relpath'. + """ + if not isinstance(relpath, (str, LocalPath)): + raise TypeError(f"{relpath!r}: not a string or path object") + strrelpath = str(relpath) + if strrelpath and strrelpath[-1] != self.sep: + strrelpath += self.sep + # assert strrelpath[-1] == self.sep + # assert strrelpath[-2] != self.sep + strself = self.strpath + if sys.platform == "win32" or getattr(os, "_name", None) == "nt": + if os.path.normcase(strself).startswith(os.path.normcase(strrelpath)): + return strself[len(strrelpath) :] + elif strself.startswith(strrelpath): + return strself[len(strrelpath) :] + return "" + + def ensure_dir(self, *args): + """Ensure the path joined with args is a directory.""" + return self.ensure(*args, **{"dir": True}) + + def bestrelpath(self, dest): + """Return a string which is a relative path from self + (assumed to be a directory) to dest such that + self.join(bestrelpath) == dest and if not such + path can be determined return dest. + """ + try: + if self == dest: + return os.curdir + base = self.common(dest) + if not base: # can be the case on windows + return str(dest) + self2base = self.relto(base) + reldest = dest.relto(base) + if self2base: + n = self2base.count(self.sep) + 1 + else: + n = 0 + lst = [os.pardir] * n + if reldest: + lst.append(reldest) + target = dest.sep.join(lst) + return target + except AttributeError: + return str(dest) + + def exists(self): + return self.check() + + def isdir(self): + return self.check(dir=1) + + def isfile(self): + return self.check(file=1) + + def parts(self, reverse=False): + """Return a root-first list of all ancestor directories + plus the path itself. + """ + current = self + lst = [self] + while 1: + last = current + current = current.dirpath() + if last == current: + break + lst.append(current) + if not reverse: + lst.reverse() + return lst + + def common(self, other): + """Return the common part shared with the other path + or None if there is no common part. + """ + last = None + for x, y in zip(self.parts(), other.parts()): + if x != y: + return last + last = x + return last + + def __add__(self, other): + """Return new path object with 'other' added to the basename""" + return self.new(basename=self.basename + str(other)) + + def visit(self, fil=None, rec=None, ignore=NeverRaised, bf=False, sort=False): + """Yields all paths below the current one + + fil is a filter (glob pattern or callable), if not matching the + path will not be yielded, defaulting to None (everything is + returned) + + rec is a filter (glob pattern or callable) that controls whether + a node is descended, defaulting to None + + ignore is an Exception class that is ignoredwhen calling dirlist() + on any of the paths (by default, all exceptions are reported) + + bf if True will cause a breadthfirst search instead of the + default depthfirst. Default: False + + sort if True will sort entries within each directory level. + """ + yield from Visitor(fil, rec, ignore, bf, sort).gen(self) + + def _sortlist(self, res, sort): + if sort: + if hasattr(sort, "__call__"): + warnings.warn( + DeprecationWarning( + "listdir(sort=callable) is deprecated and breaks on python3" + ), + stacklevel=3, + ) + res.sort(sort) + else: + res.sort() + + def __fspath__(self): + return self.strpath + + def __hash__(self): + s = self.strpath + if iswin32: + s = s.lower() + return hash(s) + + def __eq__(self, other): + s1 = os.fspath(self) + try: + s2 = os.fspath(other) + except TypeError: + return False + if iswin32: + s1 = s1.lower() + try: + s2 = s2.lower() + except AttributeError: + return False + return s1 == s2 + + def __ne__(self, other): + return not (self == other) + + def __lt__(self, other): + return os.fspath(self) < os.fspath(other) + + def __gt__(self, other): + return os.fspath(self) > os.fspath(other) + + def samefile(self, other): + """Return True if 'other' references the same file as 'self'.""" + other = os.fspath(other) + if not isabs(other): + other = abspath(other) + if self == other: + return True + if not hasattr(os.path, "samefile"): + return False + return error.checked_call(os.path.samefile, self.strpath, other) + + def remove(self, rec=1, ignore_errors=False): + """Remove a file or directory (or a directory tree if rec=1). + if ignore_errors is True, errors while removing directories will + be ignored. + """ + if self.check(dir=1, link=0): + if rec: + # force remove of readonly files on windows + if iswin32: + self.chmod(0o700, rec=1) + import shutil + + error.checked_call( + shutil.rmtree, self.strpath, ignore_errors=ignore_errors + ) + else: + error.checked_call(os.rmdir, self.strpath) + else: + if iswin32: + self.chmod(0o700) + error.checked_call(os.remove, self.strpath) + + def computehash(self, hashtype="md5", chunksize=524288): + """Return hexdigest of hashvalue for this file.""" + try: + try: + import hashlib as mod + except ImportError: + if hashtype == "sha1": + hashtype = "sha" + mod = __import__(hashtype) + hash = getattr(mod, hashtype)() + except (AttributeError, ImportError): + raise ValueError(f"Don't know how to compute {hashtype!r} hash") + f = self.open("rb") + try: + while 1: + buf = f.read(chunksize) + if not buf: + return hash.hexdigest() + hash.update(buf) + finally: + f.close() + + def new(self, **kw): + """Create a modified version of this path. + the following keyword arguments modify various path parts:: + + a:/some/path/to/a/file.ext + xx drive + xxxxxxxxxxxxxxxxx dirname + xxxxxxxx basename + xxxx purebasename + xxx ext + """ + obj = object.__new__(self.__class__) + if not kw: + obj.strpath = self.strpath + return obj + drive, dirname, basename, purebasename, ext = self._getbyspec( + "drive,dirname,basename,purebasename,ext" + ) + if "basename" in kw: + if "purebasename" in kw or "ext" in kw: + raise ValueError("invalid specification %r" % kw) + else: + pb = kw.setdefault("purebasename", purebasename) + try: + ext = kw["ext"] + except KeyError: + pass + else: + if ext and not ext.startswith("."): + ext = "." + ext + kw["basename"] = pb + ext + + if "dirname" in kw and not kw["dirname"]: + kw["dirname"] = drive + else: + kw.setdefault("dirname", dirname) + kw.setdefault("sep", self.sep) + obj.strpath = normpath("%(dirname)s%(sep)s%(basename)s" % kw) + return obj + + def _getbyspec(self, spec: str) -> list[str]: + """See new for what 'spec' can be.""" + res = [] + parts = self.strpath.split(self.sep) + + args = filter(None, spec.split(",")) + for name in args: + if name == "drive": + res.append(parts[0]) + elif name == "dirname": + res.append(self.sep.join(parts[:-1])) + else: + basename = parts[-1] + if name == "basename": + res.append(basename) + else: + i = basename.rfind(".") + if i == -1: + purebasename, ext = basename, "" + else: + purebasename, ext = basename[:i], basename[i:] + if name == "purebasename": + res.append(purebasename) + elif name == "ext": + res.append(ext) + else: + raise ValueError("invalid part specification %r" % name) + return res + + def dirpath(self, *args, **kwargs): + """Return the directory path joined with any given path arguments.""" + if not kwargs: + path = object.__new__(self.__class__) + path.strpath = dirname(self.strpath) + if args: + path = path.join(*args) + return path + return self.new(basename="").join(*args, **kwargs) + + def join(self, *args: os.PathLike[str], abs: bool = False) -> LocalPath: + """Return a new path by appending all 'args' as path + components. if abs=1 is used restart from root if any + of the args is an absolute path. + """ + sep = self.sep + strargs = [os.fspath(arg) for arg in args] + strpath = self.strpath + if abs: + newargs: list[str] = [] + for arg in reversed(strargs): + if isabs(arg): + strpath = arg + strargs = newargs + break + newargs.insert(0, arg) + # special case for when we have e.g. strpath == "/" + actual_sep = "" if strpath.endswith(sep) else sep + for arg in strargs: + arg = arg.strip(sep) + if iswin32: + # allow unix style paths even on windows. + arg = arg.strip("/") + arg = arg.replace("/", sep) + strpath = strpath + actual_sep + arg + actual_sep = sep + obj = object.__new__(self.__class__) + obj.strpath = normpath(strpath) + return obj + + def open(self, mode="r", ensure=False, encoding=None): + """Return an opened file with the given mode. + + If ensure is True, create parent directories if needed. + """ + if ensure: + self.dirpath().ensure(dir=1) + if encoding: + return error.checked_call(io.open, self.strpath, mode, encoding=encoding) + return error.checked_call(open, self.strpath, mode) + + def _fastjoin(self, name): + child = object.__new__(self.__class__) + child.strpath = self.strpath + self.sep + name + return child + + def islink(self): + return islink(self.strpath) + + def check(self, **kw): + """Check a path for existence and properties. + + Without arguments, return True if the path exists, otherwise False. + + valid checkers:: + + file=1 # is a file + file=0 # is not a file (may not even exist) + dir=1 # is a dir + link=1 # is a link + exists=1 # exists + + You can specify multiple checker definitions, for example:: + + path.check(file=1, link=1) # a link pointing to a file + """ + if not kw: + return exists(self.strpath) + if len(kw) == 1: + if "dir" in kw: + return not kw["dir"] ^ isdir(self.strpath) + if "file" in kw: + return not kw["file"] ^ isfile(self.strpath) + if not kw: + kw = {"exists": 1} + return Checkers(self)._evaluate(kw) + + _patternchars = set("*?[" + os.path.sep) + + def listdir(self, fil=None, sort=None): + """List directory contents, possibly filter by the given fil func + and possibly sorted. + """ + if fil is None and sort is None: + names = error.checked_call(os.listdir, self.strpath) + return map_as_list(self._fastjoin, names) + if isinstance(fil, str): + if not self._patternchars.intersection(fil): + child = self._fastjoin(fil) + if exists(child.strpath): + return [child] + return [] + fil = FNMatcher(fil) + names = error.checked_call(os.listdir, self.strpath) + res = [] + for name in names: + child = self._fastjoin(name) + if fil is None or fil(child): + res.append(child) + self._sortlist(res, sort) + return res + + def size(self) -> int: + """Return size of the underlying file object""" + return self.stat().size + + def mtime(self) -> float: + """Return last modification time of the path.""" + return self.stat().mtime + + def copy(self, target, mode=False, stat=False): + """Copy path to target. + + If mode is True, will copy copy permission from path to target. + If stat is True, copy permission, last modification + time, last access time, and flags from path to target. + """ + if self.check(file=1): + if target.check(dir=1): + target = target.join(self.basename) + assert self != target + copychunked(self, target) + if mode: + copymode(self.strpath, target.strpath) + if stat: + copystat(self, target) + else: + + def rec(p): + return p.check(link=0) + + for x in self.visit(rec=rec): + relpath = x.relto(self) + newx = target.join(relpath) + newx.dirpath().ensure(dir=1) + if x.check(link=1): + newx.mksymlinkto(x.readlink()) + continue + elif x.check(file=1): + copychunked(x, newx) + elif x.check(dir=1): + newx.ensure(dir=1) + if mode: + copymode(x.strpath, newx.strpath) + if stat: + copystat(x, newx) + + def rename(self, target): + """Rename this path to target.""" + target = os.fspath(target) + return error.checked_call(os.rename, self.strpath, target) + + def dump(self, obj, bin=1): + """Pickle object into path location""" + f = self.open("wb") + import pickle + + try: + error.checked_call(pickle.dump, obj, f, bin) + finally: + f.close() + + def mkdir(self, *args): + """Create & return the directory joined with args.""" + p = self.join(*args) + error.checked_call(os.mkdir, os.fspath(p)) + return p + + def write_binary(self, data, ensure=False): + """Write binary data into path. If ensure is True create + missing parent directories. + """ + if ensure: + self.dirpath().ensure(dir=1) + with self.open("wb") as f: + f.write(data) + + def write_text(self, data, encoding, ensure=False): + """Write text data into path using the specified encoding. + If ensure is True create missing parent directories. + """ + if ensure: + self.dirpath().ensure(dir=1) + with self.open("w", encoding=encoding) as f: + f.write(data) + + def write(self, data, mode="w", ensure=False): + """Write data into path. If ensure is True create + missing parent directories. + """ + if ensure: + self.dirpath().ensure(dir=1) + if "b" in mode: + if not isinstance(data, bytes): + raise ValueError("can only process bytes") + else: + if not isinstance(data, str): + if not isinstance(data, bytes): + data = str(data) + else: + data = data.decode(sys.getdefaultencoding()) + f = self.open(mode) + try: + f.write(data) + finally: + f.close() + + def _ensuredirs(self): + parent = self.dirpath() + if parent == self: + return self + if parent.check(dir=0): + parent._ensuredirs() + if self.check(dir=0): + try: + self.mkdir() + except error.EEXIST: + # race condition: file/dir created by another thread/process. + # complain if it is not a dir + if self.check(dir=0): + raise + return self + + def ensure(self, *args, **kwargs): + """Ensure that an args-joined path exists (by default as + a file). if you specify a keyword argument 'dir=True' + then the path is forced to be a directory path. + """ + p = self.join(*args) + if kwargs.get("dir", 0): + return p._ensuredirs() + else: + p.dirpath()._ensuredirs() + if not p.check(file=1): + p.open("w").close() + return p + + @overload + def stat(self, raising: Literal[True] = ...) -> Stat: + ... + + @overload + def stat(self, raising: Literal[False]) -> Stat | None: + ... + + def stat(self, raising: bool = True) -> Stat | None: + """Return an os.stat() tuple.""" + if raising: + return Stat(self, error.checked_call(os.stat, self.strpath)) + try: + return Stat(self, os.stat(self.strpath)) + except KeyboardInterrupt: + raise + except Exception: + return None + + def lstat(self) -> Stat: + """Return an os.lstat() tuple.""" + return Stat(self, error.checked_call(os.lstat, self.strpath)) + + def setmtime(self, mtime=None): + """Set modification time for the given path. if 'mtime' is None + (the default) then the file's mtime is set to current time. + + Note that the resolution for 'mtime' is platform dependent. + """ + if mtime is None: + return error.checked_call(os.utime, self.strpath, mtime) + try: + return error.checked_call(os.utime, self.strpath, (-1, mtime)) + except error.EINVAL: + return error.checked_call(os.utime, self.strpath, (self.atime(), mtime)) + + def chdir(self): + """Change directory to self and return old current directory""" + try: + old = self.__class__() + except error.ENOENT: + old = None + error.checked_call(os.chdir, self.strpath) + return old + + @contextmanager + def as_cwd(self): + """ + Return a context manager, which changes to the path's dir during the + managed "with" context. + On __enter__ it returns the old dir, which might be ``None``. + """ + old = self.chdir() + try: + yield old + finally: + if old is not None: + old.chdir() + + def realpath(self): + """Return a new path which contains no symbolic links.""" + return self.__class__(os.path.realpath(self.strpath)) + + def atime(self): + """Return last access time of the path.""" + return self.stat().atime + + def __repr__(self): + return "local(%r)" % self.strpath + + def __str__(self): + """Return string representation of the Path.""" + return self.strpath + + def chmod(self, mode, rec=0): + """Change permissions to the given mode. If mode is an + integer it directly encodes the os-specific modes. + if rec is True perform recursively. + """ + if not isinstance(mode, int): + raise TypeError(f"mode {mode!r} must be an integer") + if rec: + for x in self.visit(rec=rec): + error.checked_call(os.chmod, str(x), mode) + error.checked_call(os.chmod, self.strpath, mode) + + def pypkgpath(self): + """Return the Python package path by looking for the last + directory upwards which still contains an __init__.py. + Return None if a pkgpath can not be determined. + """ + pkgpath = None + for parent in self.parts(reverse=True): + if parent.isdir(): + if not parent.join("__init__.py").exists(): + break + if not isimportable(parent.basename): + break + pkgpath = parent + return pkgpath + + def _ensuresyspath(self, ensuremode, path): + if ensuremode: + s = str(path) + if ensuremode == "append": + if s not in sys.path: + sys.path.append(s) + else: + if s != sys.path[0]: + sys.path.insert(0, s) + + def pyimport(self, modname=None, ensuresyspath=True): + """Return path as an imported python module. + + If modname is None, look for the containing package + and construct an according module name. + The module will be put/looked up in sys.modules. + if ensuresyspath is True then the root dir for importing + the file (taking __init__.py files into account) will + be prepended to sys.path if it isn't there already. + If ensuresyspath=="append" the root dir will be appended + if it isn't already contained in sys.path. + if ensuresyspath is False no modification of syspath happens. + + Special value of ensuresyspath=="importlib" is intended + purely for using in pytest, it is capable only of importing + separate .py files outside packages, e.g. for test suite + without any __init__.py file. It effectively allows having + same-named test modules in different places and offers + mild opt-in via this option. Note that it works only in + recent versions of python. + """ + if not self.check(): + raise error.ENOENT(self) + + if ensuresyspath == "importlib": + if modname is None: + modname = self.purebasename + spec = importlib.util.spec_from_file_location(modname, str(self)) + if spec is None or spec.loader is None: + raise ImportError( + f"Can't find module {modname} at location {str(self)}" + ) + mod = importlib.util.module_from_spec(spec) + spec.loader.exec_module(mod) + return mod + + pkgpath = None + if modname is None: + pkgpath = self.pypkgpath() + if pkgpath is not None: + pkgroot = pkgpath.dirpath() + names = self.new(ext="").relto(pkgroot).split(self.sep) + if names[-1] == "__init__": + names.pop() + modname = ".".join(names) + else: + pkgroot = self.dirpath() + modname = self.purebasename + + self._ensuresyspath(ensuresyspath, pkgroot) + __import__(modname) + mod = sys.modules[modname] + if self.basename == "__init__.py": + return mod # we don't check anything as we might + # be in a namespace package ... too icky to check + modfile = mod.__file__ + assert modfile is not None + if modfile[-4:] in (".pyc", ".pyo"): + modfile = modfile[:-1] + elif modfile.endswith("$py.class"): + modfile = modfile[:-9] + ".py" + if modfile.endswith(os.path.sep + "__init__.py"): + if self.basename != "__init__.py": + modfile = modfile[:-12] + try: + issame = self.samefile(modfile) + except error.ENOENT: + issame = False + if not issame: + ignore = os.getenv("PY_IGNORE_IMPORTMISMATCH") + if ignore != "1": + raise self.ImportMismatchError(modname, modfile, self) + return mod + else: + try: + return sys.modules[modname] + except KeyError: + # we have a custom modname, do a pseudo-import + import types + + mod = types.ModuleType(modname) + mod.__file__ = str(self) + sys.modules[modname] = mod + try: + with open(str(self), "rb") as f: + exec(f.read(), mod.__dict__) + except BaseException: + del sys.modules[modname] + raise + return mod + + def sysexec(self, *argv: os.PathLike[str], **popen_opts: Any) -> str: + """Return stdout text from executing a system child process, + where the 'self' path points to executable. + The process is directly invoked and not through a system shell. + """ + from subprocess import Popen, PIPE + + popen_opts.pop("stdout", None) + popen_opts.pop("stderr", None) + proc = Popen( + [str(self)] + [str(arg) for arg in argv], + **popen_opts, + stdout=PIPE, + stderr=PIPE, + ) + stdout: str | bytes + stdout, stderr = proc.communicate() + ret = proc.wait() + if isinstance(stdout, bytes): + stdout = stdout.decode(sys.getdefaultencoding()) + if ret != 0: + if isinstance(stderr, bytes): + stderr = stderr.decode(sys.getdefaultencoding()) + raise RuntimeError( + ret, + ret, + str(self), + stdout, + stderr, + ) + return stdout + + @classmethod + def sysfind(cls, name, checker=None, paths=None): + """Return a path object found by looking at the systems + underlying PATH specification. If the checker is not None + it will be invoked to filter matching paths. If a binary + cannot be found, None is returned + Note: This is probably not working on plain win32 systems + but may work on cygwin. + """ + if isabs(name): + p = local(name) + if p.check(file=1): + return p + else: + if paths is None: + if iswin32: + paths = os.environ["Path"].split(";") + if "" not in paths and "." not in paths: + paths.append(".") + try: + systemroot = os.environ["SYSTEMROOT"] + except KeyError: + pass + else: + paths = [ + path.replace("%SystemRoot%", systemroot) for path in paths + ] + else: + paths = os.environ["PATH"].split(":") + tryadd = [] + if iswin32: + tryadd += os.environ["PATHEXT"].split(os.pathsep) + tryadd.append("") + + for x in paths: + for addext in tryadd: + p = local(x).join(name, abs=True) + addext + try: + if p.check(file=1): + if checker: + if not checker(p): + continue + return p + except error.EACCES: + pass + return None + + @classmethod + def _gethomedir(cls): + try: + x = os.environ["HOME"] + except KeyError: + try: + x = os.environ["HOMEDRIVE"] + os.environ["HOMEPATH"] + except KeyError: + return None + return cls(x) + + # """ + # special class constructors for local filesystem paths + # """ + @classmethod + def get_temproot(cls): + """Return the system's temporary directory + (where tempfiles are usually created in) + """ + import tempfile + + return local(tempfile.gettempdir()) + + @classmethod + def mkdtemp(cls, rootdir=None): + """Return a Path object pointing to a fresh new temporary directory + (which we created ourself). + """ + import tempfile + + if rootdir is None: + rootdir = cls.get_temproot() + return cls(error.checked_call(tempfile.mkdtemp, dir=str(rootdir))) + + @classmethod + def make_numbered_dir( + cls, prefix="session-", rootdir=None, keep=3, lock_timeout=172800 + ): # two days + """Return unique directory with a number greater than the current + maximum one. The number is assumed to start directly after prefix. + if keep is true directories with a number less than (maxnum-keep) + will be removed. If .lock files are used (lock_timeout non-zero), + algorithm is multi-process safe. + """ + if rootdir is None: + rootdir = cls.get_temproot() + + nprefix = prefix.lower() + + def parse_num(path): + """Parse the number out of a path (if it matches the prefix)""" + nbasename = path.basename.lower() + if nbasename.startswith(nprefix): + try: + return int(nbasename[len(nprefix) :]) + except ValueError: + pass + + def create_lockfile(path): + """Exclusively create lockfile. Throws when failed""" + mypid = os.getpid() + lockfile = path.join(".lock") + if hasattr(lockfile, "mksymlinkto"): + lockfile.mksymlinkto(str(mypid)) + else: + fd = error.checked_call( + os.open, str(lockfile), os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o644 + ) + with os.fdopen(fd, "w") as f: + f.write(str(mypid)) + return lockfile + + def atexit_remove_lockfile(lockfile): + """Ensure lockfile is removed at process exit""" + mypid = os.getpid() + + def try_remove_lockfile(): + # in a fork() situation, only the last process should + # remove the .lock, otherwise the other processes run the + # risk of seeing their temporary dir disappear. For now + # we remove the .lock in the parent only (i.e. we assume + # that the children finish before the parent). + if os.getpid() != mypid: + return + try: + lockfile.remove() + except error.Error: + pass + + atexit.register(try_remove_lockfile) + + # compute the maximum number currently in use with the prefix + lastmax = None + while True: + maxnum = -1 + for path in rootdir.listdir(): + num = parse_num(path) + if num is not None: + maxnum = max(maxnum, num) + + # make the new directory + try: + udir = rootdir.mkdir(prefix + str(maxnum + 1)) + if lock_timeout: + lockfile = create_lockfile(udir) + atexit_remove_lockfile(lockfile) + except (error.EEXIST, error.ENOENT, error.EBUSY): + # race condition (1): another thread/process created the dir + # in the meantime - try again + # race condition (2): another thread/process spuriously acquired + # lock treating empty directory as candidate + # for removal - try again + # race condition (3): another thread/process tried to create the lock at + # the same time (happened in Python 3.3 on Windows) + # https://ci.appveyor.com/project/pytestbot/py/build/1.0.21/job/ffi85j4c0lqwsfwa + if lastmax == maxnum: + raise + lastmax = maxnum + continue + break + + def get_mtime(path): + """Read file modification time""" + try: + return path.lstat().mtime + except error.Error: + pass + + garbage_prefix = prefix + "garbage-" + + def is_garbage(path): + """Check if path denotes directory scheduled for removal""" + bn = path.basename + return bn.startswith(garbage_prefix) + + # prune old directories + udir_time = get_mtime(udir) + if keep and udir_time: + for path in rootdir.listdir(): + num = parse_num(path) + if num is not None and num <= (maxnum - keep): + try: + # try acquiring lock to remove directory as exclusive user + if lock_timeout: + create_lockfile(path) + except (error.EEXIST, error.ENOENT, error.EBUSY): + path_time = get_mtime(path) + if not path_time: + # assume directory doesn't exist now + continue + if abs(udir_time - path_time) < lock_timeout: + # assume directory with lockfile exists + # and lock timeout hasn't expired yet + continue + + # path dir locked for exclusive use + # and scheduled for removal to avoid another thread/process + # treating it as a new directory or removal candidate + garbage_path = rootdir.join(garbage_prefix + str(uuid.uuid4())) + try: + path.rename(garbage_path) + garbage_path.remove(rec=1) + except KeyboardInterrupt: + raise + except Exception: # this might be error.Error, WindowsError ... + pass + if is_garbage(path): + try: + path.remove(rec=1) + except KeyboardInterrupt: + raise + except Exception: # this might be error.Error, WindowsError ... + pass + + # make link... + try: + username = os.environ["USER"] # linux, et al + except KeyError: + try: + username = os.environ["USERNAME"] # windows + except KeyError: + username = "current" + + src = str(udir) + dest = src[: src.rfind("-")] + "-" + username + try: + os.unlink(dest) + except OSError: + pass + try: + os.symlink(src, dest) + except (OSError, AttributeError, NotImplementedError): + pass + + return udir + + +def copymode(src, dest): + """Copy permission from src to dst.""" + import shutil + + shutil.copymode(src, dest) + + +def copystat(src, dest): + """Copy permission, last modification time, + last access time, and flags from src to dst.""" + import shutil + + shutil.copystat(str(src), str(dest)) + + +def copychunked(src, dest): + chunksize = 524288 # half a meg of bytes + fsrc = src.open("rb") + try: + fdest = dest.open("wb") + try: + while 1: + buf = fsrc.read(chunksize) + if not buf: + break + fdest.write(buf) + finally: + fdest.close() + finally: + fsrc.close() + + +def isimportable(name): + if name and (name[0].isalpha() or name[0] == "_"): + name = name.replace("_", "") + return not name or name.isalnum() + + +local = LocalPath diff --git a/utils/python-venv/Lib/site-packages/_pytest/_version.py b/utils/python-venv/Lib/site-packages/_pytest/_version.py new file mode 100644 index 0000000..62023fe --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/_version.py @@ -0,0 +1,5 @@ +# coding: utf-8 +# file generated by setuptools_scm +# don't change, don't track in version control +__version__ = version = '7.2.0' +__version_tuple__ = version_tuple = (7, 2, 0) diff --git a/utils/python-venv/Lib/site-packages/_pytest/assertion/__init__.py b/utils/python-venv/Lib/site-packages/_pytest/assertion/__init__.py new file mode 100644 index 0000000..a46e581 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/assertion/__init__.py @@ -0,0 +1,181 @@ +"""Support for presenting detailed information in failing assertions.""" +import sys +from typing import Any +from typing import Generator +from typing import List +from typing import Optional +from typing import TYPE_CHECKING + +from _pytest.assertion import rewrite +from _pytest.assertion import truncate +from _pytest.assertion import util +from _pytest.assertion.rewrite import assertstate_key +from _pytest.config import Config +from _pytest.config import hookimpl +from _pytest.config.argparsing import Parser +from _pytest.nodes import Item + +if TYPE_CHECKING: + from _pytest.main import Session + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("debugconfig") + group.addoption( + "--assert", + action="store", + dest="assertmode", + choices=("rewrite", "plain"), + default="rewrite", + metavar="MODE", + help=( + "Control assertion debugging tools.\n" + "'plain' performs no assertion debugging.\n" + "'rewrite' (the default) rewrites assert statements in test modules" + " on import to provide assert expression information." + ), + ) + parser.addini( + "enable_assertion_pass_hook", + type="bool", + default=False, + help="Enables the pytest_assertion_pass hook. " + "Make sure to delete any previously generated pyc cache files.", + ) + + +def register_assert_rewrite(*names: str) -> None: + """Register one or more module names to be rewritten on import. + + This function will make sure that this module or all modules inside + the package will get their assert statements rewritten. + Thus you should make sure to call this before the module is + actually imported, usually in your __init__.py if you are a plugin + using a package. + + :param names: The module names to register. + """ + for name in names: + if not isinstance(name, str): + msg = "expected module names as *args, got {0} instead" # type: ignore[unreachable] + raise TypeError(msg.format(repr(names))) + for hook in sys.meta_path: + if isinstance(hook, rewrite.AssertionRewritingHook): + importhook = hook + break + else: + # TODO(typing): Add a protocol for mark_rewrite() and use it + # for importhook and for PytestPluginManager.rewrite_hook. + importhook = DummyRewriteHook() # type: ignore + importhook.mark_rewrite(*names) + + +class DummyRewriteHook: + """A no-op import hook for when rewriting is disabled.""" + + def mark_rewrite(self, *names: str) -> None: + pass + + +class AssertionState: + """State for the assertion plugin.""" + + def __init__(self, config: Config, mode) -> None: + self.mode = mode + self.trace = config.trace.root.get("assertion") + self.hook: Optional[rewrite.AssertionRewritingHook] = None + + +def install_importhook(config: Config) -> rewrite.AssertionRewritingHook: + """Try to install the rewrite hook, raise SystemError if it fails.""" + config.stash[assertstate_key] = AssertionState(config, "rewrite") + config.stash[assertstate_key].hook = hook = rewrite.AssertionRewritingHook(config) + sys.meta_path.insert(0, hook) + config.stash[assertstate_key].trace("installed rewrite import hook") + + def undo() -> None: + hook = config.stash[assertstate_key].hook + if hook is not None and hook in sys.meta_path: + sys.meta_path.remove(hook) + + config.add_cleanup(undo) + return hook + + +def pytest_collection(session: "Session") -> None: + # This hook is only called when test modules are collected + # so for example not in the managing process of pytest-xdist + # (which does not collect test modules). + assertstate = session.config.stash.get(assertstate_key, None) + if assertstate: + if assertstate.hook is not None: + assertstate.hook.set_session(session) + + +@hookimpl(tryfirst=True, hookwrapper=True) +def pytest_runtest_protocol(item: Item) -> Generator[None, None, None]: + """Setup the pytest_assertrepr_compare and pytest_assertion_pass hooks. + + The rewrite module will use util._reprcompare if it exists to use custom + reporting via the pytest_assertrepr_compare hook. This sets up this custom + comparison for the test. + """ + + ihook = item.ihook + + def callbinrepr(op, left: object, right: object) -> Optional[str]: + """Call the pytest_assertrepr_compare hook and prepare the result. + + This uses the first result from the hook and then ensures the + following: + * Overly verbose explanations are truncated unless configured otherwise + (eg. if running in verbose mode). + * Embedded newlines are escaped to help util.format_explanation() + later. + * If the rewrite mode is used embedded %-characters are replaced + to protect later % formatting. + + The result can be formatted by util.format_explanation() for + pretty printing. + """ + hook_result = ihook.pytest_assertrepr_compare( + config=item.config, op=op, left=left, right=right + ) + for new_expl in hook_result: + if new_expl: + new_expl = truncate.truncate_if_required(new_expl, item) + new_expl = [line.replace("\n", "\\n") for line in new_expl] + res = "\n~".join(new_expl) + if item.config.getvalue("assertmode") == "rewrite": + res = res.replace("%", "%%") + return res + return None + + saved_assert_hooks = util._reprcompare, util._assertion_pass + util._reprcompare = callbinrepr + util._config = item.config + + if ihook.pytest_assertion_pass.get_hookimpls(): + + def call_assertion_pass_hook(lineno: int, orig: str, expl: str) -> None: + ihook.pytest_assertion_pass(item=item, lineno=lineno, orig=orig, expl=expl) + + util._assertion_pass = call_assertion_pass_hook + + yield + + util._reprcompare, util._assertion_pass = saved_assert_hooks + util._config = None + + +def pytest_sessionfinish(session: "Session") -> None: + assertstate = session.config.stash.get(assertstate_key, None) + if assertstate: + if assertstate.hook is not None: + assertstate.hook.set_session(None) + + +def pytest_assertrepr_compare( + config: Config, op: str, left: Any, right: Any +) -> Optional[List[str]]: + return util.assertrepr_compare(config=config, op=op, left=left, right=right) diff --git a/utils/python-venv/Lib/site-packages/_pytest/assertion/rewrite.py b/utils/python-venv/Lib/site-packages/_pytest/assertion/rewrite.py new file mode 100644 index 0000000..63f9dd8 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/assertion/rewrite.py @@ -0,0 +1,1107 @@ +"""Rewrite assertion AST to produce nice error messages.""" +import ast +import errno +import functools +import importlib.abc +import importlib.machinery +import importlib.util +import io +import itertools +import marshal +import os +import struct +import sys +import tokenize +import types +from pathlib import Path +from pathlib import PurePath +from typing import Callable +from typing import Dict +from typing import IO +from typing import Iterable +from typing import Iterator +from typing import List +from typing import Optional +from typing import Sequence +from typing import Set +from typing import Tuple +from typing import TYPE_CHECKING +from typing import Union + +from _pytest._io.saferepr import DEFAULT_REPR_MAX_SIZE +from _pytest._io.saferepr import saferepr +from _pytest._version import version +from _pytest.assertion import util +from _pytest.assertion.util import ( # noqa: F401 + format_explanation as _format_explanation, +) +from _pytest.config import Config +from _pytest.main import Session +from _pytest.pathlib import absolutepath +from _pytest.pathlib import fnmatch_ex +from _pytest.stash import StashKey + +if TYPE_CHECKING: + from _pytest.assertion import AssertionState + + +assertstate_key = StashKey["AssertionState"]() + + +# pytest caches rewritten pycs in pycache dirs +PYTEST_TAG = f"{sys.implementation.cache_tag}-pytest-{version}" +PYC_EXT = ".py" + (__debug__ and "c" or "o") +PYC_TAIL = "." + PYTEST_TAG + PYC_EXT + + +class AssertionRewritingHook(importlib.abc.MetaPathFinder, importlib.abc.Loader): + """PEP302/PEP451 import hook which rewrites asserts.""" + + def __init__(self, config: Config) -> None: + self.config = config + try: + self.fnpats = config.getini("python_files") + except ValueError: + self.fnpats = ["test_*.py", "*_test.py"] + self.session: Optional[Session] = None + self._rewritten_names: Dict[str, Path] = {} + self._must_rewrite: Set[str] = set() + # flag to guard against trying to rewrite a pyc file while we are already writing another pyc file, + # which might result in infinite recursion (#3506) + self._writing_pyc = False + self._basenames_to_check_rewrite = {"conftest"} + self._marked_for_rewrite_cache: Dict[str, bool] = {} + self._session_paths_checked = False + + def set_session(self, session: Optional[Session]) -> None: + self.session = session + self._session_paths_checked = False + + # Indirection so we can mock calls to find_spec originated from the hook during testing + _find_spec = importlib.machinery.PathFinder.find_spec + + def find_spec( + self, + name: str, + path: Optional[Sequence[Union[str, bytes]]] = None, + target: Optional[types.ModuleType] = None, + ) -> Optional[importlib.machinery.ModuleSpec]: + if self._writing_pyc: + return None + state = self.config.stash[assertstate_key] + if self._early_rewrite_bailout(name, state): + return None + state.trace("find_module called for: %s" % name) + + # Type ignored because mypy is confused about the `self` binding here. + spec = self._find_spec(name, path) # type: ignore + if ( + # the import machinery could not find a file to import + spec is None + # this is a namespace package (without `__init__.py`) + # there's nothing to rewrite there + or spec.origin is None + # we can only rewrite source files + or not isinstance(spec.loader, importlib.machinery.SourceFileLoader) + # if the file doesn't exist, we can't rewrite it + or not os.path.exists(spec.origin) + ): + return None + else: + fn = spec.origin + + if not self._should_rewrite(name, fn, state): + return None + + return importlib.util.spec_from_file_location( + name, + fn, + loader=self, + submodule_search_locations=spec.submodule_search_locations, + ) + + def create_module( + self, spec: importlib.machinery.ModuleSpec + ) -> Optional[types.ModuleType]: + return None # default behaviour is fine + + def exec_module(self, module: types.ModuleType) -> None: + assert module.__spec__ is not None + assert module.__spec__.origin is not None + fn = Path(module.__spec__.origin) + state = self.config.stash[assertstate_key] + + self._rewritten_names[module.__name__] = fn + + # The requested module looks like a test file, so rewrite it. This is + # the most magical part of the process: load the source, rewrite the + # asserts, and load the rewritten source. We also cache the rewritten + # module code in a special pyc. We must be aware of the possibility of + # concurrent pytest processes rewriting and loading pycs. To avoid + # tricky race conditions, we maintain the following invariant: The + # cached pyc is always a complete, valid pyc. Operations on it must be + # atomic. POSIX's atomic rename comes in handy. + write = not sys.dont_write_bytecode + cache_dir = get_cache_dir(fn) + if write: + ok = try_makedirs(cache_dir) + if not ok: + write = False + state.trace(f"read only directory: {cache_dir}") + + cache_name = fn.name[:-3] + PYC_TAIL + pyc = cache_dir / cache_name + # Notice that even if we're in a read-only directory, I'm going + # to check for a cached pyc. This may not be optimal... + co = _read_pyc(fn, pyc, state.trace) + if co is None: + state.trace(f"rewriting {fn!r}") + source_stat, co = _rewrite_test(fn, self.config) + if write: + self._writing_pyc = True + try: + _write_pyc(state, co, source_stat, pyc) + finally: + self._writing_pyc = False + else: + state.trace(f"found cached rewritten pyc for {fn}") + exec(co, module.__dict__) + + def _early_rewrite_bailout(self, name: str, state: "AssertionState") -> bool: + """A fast way to get out of rewriting modules. + + Profiling has shown that the call to PathFinder.find_spec (inside of + the find_spec from this class) is a major slowdown, so, this method + tries to filter what we're sure won't be rewritten before getting to + it. + """ + if self.session is not None and not self._session_paths_checked: + self._session_paths_checked = True + for initial_path in self.session._initialpaths: + # Make something as c:/projects/my_project/path.py -> + # ['c:', 'projects', 'my_project', 'path.py'] + parts = str(initial_path).split(os.path.sep) + # add 'path' to basenames to be checked. + self._basenames_to_check_rewrite.add(os.path.splitext(parts[-1])[0]) + + # Note: conftest already by default in _basenames_to_check_rewrite. + parts = name.split(".") + if parts[-1] in self._basenames_to_check_rewrite: + return False + + # For matching the name it must be as if it was a filename. + path = PurePath(*parts).with_suffix(".py") + + for pat in self.fnpats: + # if the pattern contains subdirectories ("tests/**.py" for example) we can't bail out based + # on the name alone because we need to match against the full path + if os.path.dirname(pat): + return False + if fnmatch_ex(pat, path): + return False + + if self._is_marked_for_rewrite(name, state): + return False + + state.trace(f"early skip of rewriting module: {name}") + return True + + def _should_rewrite(self, name: str, fn: str, state: "AssertionState") -> bool: + # always rewrite conftest files + if os.path.basename(fn) == "conftest.py": + state.trace(f"rewriting conftest file: {fn!r}") + return True + + if self.session is not None: + if self.session.isinitpath(absolutepath(fn)): + state.trace(f"matched test file (was specified on cmdline): {fn!r}") + return True + + # modules not passed explicitly on the command line are only + # rewritten if they match the naming convention for test files + fn_path = PurePath(fn) + for pat in self.fnpats: + if fnmatch_ex(pat, fn_path): + state.trace(f"matched test file {fn!r}") + return True + + return self._is_marked_for_rewrite(name, state) + + def _is_marked_for_rewrite(self, name: str, state: "AssertionState") -> bool: + try: + return self._marked_for_rewrite_cache[name] + except KeyError: + for marked in self._must_rewrite: + if name == marked or name.startswith(marked + "."): + state.trace(f"matched marked file {name!r} (from {marked!r})") + self._marked_for_rewrite_cache[name] = True + return True + + self._marked_for_rewrite_cache[name] = False + return False + + def mark_rewrite(self, *names: str) -> None: + """Mark import names as needing to be rewritten. + + The named module or package as well as any nested modules will + be rewritten on import. + """ + already_imported = ( + set(names).intersection(sys.modules).difference(self._rewritten_names) + ) + for name in already_imported: + mod = sys.modules[name] + if not AssertionRewriter.is_rewrite_disabled( + mod.__doc__ or "" + ) and not isinstance(mod.__loader__, type(self)): + self._warn_already_imported(name) + self._must_rewrite.update(names) + self._marked_for_rewrite_cache.clear() + + def _warn_already_imported(self, name: str) -> None: + from _pytest.warning_types import PytestAssertRewriteWarning + + self.config.issue_config_time_warning( + PytestAssertRewriteWarning( + "Module already imported so cannot be rewritten: %s" % name + ), + stacklevel=5, + ) + + def get_data(self, pathname: Union[str, bytes]) -> bytes: + """Optional PEP302 get_data API.""" + with open(pathname, "rb") as f: + return f.read() + + if sys.version_info >= (3, 10): + + def get_resource_reader(self, name: str) -> importlib.abc.TraversableResources: # type: ignore + if sys.version_info < (3, 11): + from importlib.readers import FileReader + else: + from importlib.resources.readers import FileReader + + return FileReader( # type:ignore[no-any-return] + types.SimpleNamespace(path=self._rewritten_names[name]) + ) + + +def _write_pyc_fp( + fp: IO[bytes], source_stat: os.stat_result, co: types.CodeType +) -> None: + # Technically, we don't have to have the same pyc format as + # (C)Python, since these "pycs" should never be seen by builtin + # import. However, there's little reason to deviate. + fp.write(importlib.util.MAGIC_NUMBER) + # https://www.python.org/dev/peps/pep-0552/ + flags = b"\x00\x00\x00\x00" + fp.write(flags) + # as of now, bytecode header expects 32-bit numbers for size and mtime (#4903) + mtime = int(source_stat.st_mtime) & 0xFFFFFFFF + size = source_stat.st_size & 0xFFFFFFFF + # " bool: + proc_pyc = f"{pyc}.{os.getpid()}" + try: + with open(proc_pyc, "wb") as fp: + _write_pyc_fp(fp, source_stat, co) + except OSError as e: + state.trace(f"error writing pyc file at {proc_pyc}: errno={e.errno}") + return False + + try: + os.replace(proc_pyc, pyc) + except OSError as e: + state.trace(f"error writing pyc file at {pyc}: {e}") + # we ignore any failure to write the cache file + # there are many reasons, permission-denied, pycache dir being a + # file etc. + return False + return True + + +def _rewrite_test(fn: Path, config: Config) -> Tuple[os.stat_result, types.CodeType]: + """Read and rewrite *fn* and return the code object.""" + stat = os.stat(fn) + source = fn.read_bytes() + strfn = str(fn) + tree = ast.parse(source, filename=strfn) + rewrite_asserts(tree, source, strfn, config) + co = compile(tree, strfn, "exec", dont_inherit=True) + return stat, co + + +def _read_pyc( + source: Path, pyc: Path, trace: Callable[[str], None] = lambda x: None +) -> Optional[types.CodeType]: + """Possibly read a pytest pyc containing rewritten code. + + Return rewritten code if successful or None if not. + """ + try: + fp = open(pyc, "rb") + except OSError: + return None + with fp: + try: + stat_result = os.stat(source) + mtime = int(stat_result.st_mtime) + size = stat_result.st_size + data = fp.read(16) + except OSError as e: + trace(f"_read_pyc({source}): OSError {e}") + return None + # Check for invalid or out of date pyc file. + if len(data) != (16): + trace("_read_pyc(%s): invalid pyc (too short)" % source) + return None + if data[:4] != importlib.util.MAGIC_NUMBER: + trace("_read_pyc(%s): invalid pyc (bad magic number)" % source) + return None + if data[4:8] != b"\x00\x00\x00\x00": + trace("_read_pyc(%s): invalid pyc (unsupported flags)" % source) + return None + mtime_data = data[8:12] + if int.from_bytes(mtime_data, "little") != mtime & 0xFFFFFFFF: + trace("_read_pyc(%s): out of date" % source) + return None + size_data = data[12:16] + if int.from_bytes(size_data, "little") != size & 0xFFFFFFFF: + trace("_read_pyc(%s): invalid pyc (incorrect size)" % source) + return None + try: + co = marshal.load(fp) + except Exception as e: + trace(f"_read_pyc({source}): marshal.load error {e}") + return None + if not isinstance(co, types.CodeType): + trace("_read_pyc(%s): not a code object" % source) + return None + return co + + +def rewrite_asserts( + mod: ast.Module, + source: bytes, + module_path: Optional[str] = None, + config: Optional[Config] = None, +) -> None: + """Rewrite the assert statements in mod.""" + AssertionRewriter(module_path, config, source).run(mod) + + +def _saferepr(obj: object) -> str: + r"""Get a safe repr of an object for assertion error messages. + + The assertion formatting (util.format_explanation()) requires + newlines to be escaped since they are a special character for it. + Normally assertion.util.format_explanation() does this but for a + custom repr it is possible to contain one of the special escape + sequences, especially '\n{' and '\n}' are likely to be present in + JSON reprs. + """ + maxsize = _get_maxsize_for_saferepr(util._config) + return saferepr(obj, maxsize=maxsize).replace("\n", "\\n") + + +def _get_maxsize_for_saferepr(config: Optional[Config]) -> Optional[int]: + """Get `maxsize` configuration for saferepr based on the given config object.""" + verbosity = config.getoption("verbose") if config is not None else 0 + if verbosity >= 2: + return None + if verbosity >= 1: + return DEFAULT_REPR_MAX_SIZE * 10 + return DEFAULT_REPR_MAX_SIZE + + +def _format_assertmsg(obj: object) -> str: + r"""Format the custom assertion message given. + + For strings this simply replaces newlines with '\n~' so that + util.format_explanation() will preserve them instead of escaping + newlines. For other objects saferepr() is used first. + """ + # reprlib appears to have a bug which means that if a string + # contains a newline it gets escaped, however if an object has a + # .__repr__() which contains newlines it does not get escaped. + # However in either case we want to preserve the newline. + replaces = [("\n", "\n~"), ("%", "%%")] + if not isinstance(obj, str): + obj = saferepr(obj) + replaces.append(("\\n", "\n~")) + + for r1, r2 in replaces: + obj = obj.replace(r1, r2) + + return obj + + +def _should_repr_global_name(obj: object) -> bool: + if callable(obj): + return False + + try: + return not hasattr(obj, "__name__") + except Exception: + return True + + +def _format_boolop(explanations: Iterable[str], is_or: bool) -> str: + explanation = "(" + (is_or and " or " or " and ").join(explanations) + ")" + return explanation.replace("%", "%%") + + +def _call_reprcompare( + ops: Sequence[str], + results: Sequence[bool], + expls: Sequence[str], + each_obj: Sequence[object], +) -> str: + for i, res, expl in zip(range(len(ops)), results, expls): + try: + done = not res + except Exception: + done = True + if done: + break + if util._reprcompare is not None: + custom = util._reprcompare(ops[i], each_obj[i], each_obj[i + 1]) + if custom is not None: + return custom + return expl + + +def _call_assertion_pass(lineno: int, orig: str, expl: str) -> None: + if util._assertion_pass is not None: + util._assertion_pass(lineno, orig, expl) + + +def _check_if_assertion_pass_impl() -> bool: + """Check if any plugins implement the pytest_assertion_pass hook + in order not to generate explanation unnecessarily (might be expensive).""" + return True if util._assertion_pass else False + + +UNARY_MAP = {ast.Not: "not %s", ast.Invert: "~%s", ast.USub: "-%s", ast.UAdd: "+%s"} + +BINOP_MAP = { + ast.BitOr: "|", + ast.BitXor: "^", + ast.BitAnd: "&", + ast.LShift: "<<", + ast.RShift: ">>", + ast.Add: "+", + ast.Sub: "-", + ast.Mult: "*", + ast.Div: "/", + ast.FloorDiv: "//", + ast.Mod: "%%", # escaped for string formatting + ast.Eq: "==", + ast.NotEq: "!=", + ast.Lt: "<", + ast.LtE: "<=", + ast.Gt: ">", + ast.GtE: ">=", + ast.Pow: "**", + ast.Is: "is", + ast.IsNot: "is not", + ast.In: "in", + ast.NotIn: "not in", + ast.MatMult: "@", +} + + +def traverse_node(node: ast.AST) -> Iterator[ast.AST]: + """Recursively yield node and all its children in depth-first order.""" + yield node + for child in ast.iter_child_nodes(node): + yield from traverse_node(child) + + +@functools.lru_cache(maxsize=1) +def _get_assertion_exprs(src: bytes) -> Dict[int, str]: + """Return a mapping from {lineno: "assertion test expression"}.""" + ret: Dict[int, str] = {} + + depth = 0 + lines: List[str] = [] + assert_lineno: Optional[int] = None + seen_lines: Set[int] = set() + + def _write_and_reset() -> None: + nonlocal depth, lines, assert_lineno, seen_lines + assert assert_lineno is not None + ret[assert_lineno] = "".join(lines).rstrip().rstrip("\\") + depth = 0 + lines = [] + assert_lineno = None + seen_lines = set() + + tokens = tokenize.tokenize(io.BytesIO(src).readline) + for tp, source, (lineno, offset), _, line in tokens: + if tp == tokenize.NAME and source == "assert": + assert_lineno = lineno + elif assert_lineno is not None: + # keep track of depth for the assert-message `,` lookup + if tp == tokenize.OP and source in "([{": + depth += 1 + elif tp == tokenize.OP and source in ")]}": + depth -= 1 + + if not lines: + lines.append(line[offset:]) + seen_lines.add(lineno) + # a non-nested comma separates the expression from the message + elif depth == 0 and tp == tokenize.OP and source == ",": + # one line assert with message + if lineno in seen_lines and len(lines) == 1: + offset_in_trimmed = offset + len(lines[-1]) - len(line) + lines[-1] = lines[-1][:offset_in_trimmed] + # multi-line assert with message + elif lineno in seen_lines: + lines[-1] = lines[-1][:offset] + # multi line assert with escapd newline before message + else: + lines.append(line[:offset]) + _write_and_reset() + elif tp in {tokenize.NEWLINE, tokenize.ENDMARKER}: + _write_and_reset() + elif lines and lineno not in seen_lines: + lines.append(line) + seen_lines.add(lineno) + + return ret + + +class AssertionRewriter(ast.NodeVisitor): + """Assertion rewriting implementation. + + The main entrypoint is to call .run() with an ast.Module instance, + this will then find all the assert statements and rewrite them to + provide intermediate values and a detailed assertion error. See + http://pybites.blogspot.be/2011/07/behind-scenes-of-pytests-new-assertion.html + for an overview of how this works. + + The entry point here is .run() which will iterate over all the + statements in an ast.Module and for each ast.Assert statement it + finds call .visit() with it. Then .visit_Assert() takes over and + is responsible for creating new ast statements to replace the + original assert statement: it rewrites the test of an assertion + to provide intermediate values and replace it with an if statement + which raises an assertion error with a detailed explanation in + case the expression is false and calls pytest_assertion_pass hook + if expression is true. + + For this .visit_Assert() uses the visitor pattern to visit all the + AST nodes of the ast.Assert.test field, each visit call returning + an AST node and the corresponding explanation string. During this + state is kept in several instance attributes: + + :statements: All the AST statements which will replace the assert + statement. + + :variables: This is populated by .variable() with each variable + used by the statements so that they can all be set to None at + the end of the statements. + + :variable_counter: Counter to create new unique variables needed + by statements. Variables are created using .variable() and + have the form of "@py_assert0". + + :expl_stmts: The AST statements which will be executed to get + data from the assertion. This is the code which will construct + the detailed assertion message that is used in the AssertionError + or for the pytest_assertion_pass hook. + + :explanation_specifiers: A dict filled by .explanation_param() + with %-formatting placeholders and their corresponding + expressions to use in the building of an assertion message. + This is used by .pop_format_context() to build a message. + + :stack: A stack of the explanation_specifiers dicts maintained by + .push_format_context() and .pop_format_context() which allows + to build another %-formatted string while already building one. + + This state is reset on every new assert statement visited and used + by the other visitors. + """ + + def __init__( + self, module_path: Optional[str], config: Optional[Config], source: bytes + ) -> None: + super().__init__() + self.module_path = module_path + self.config = config + if config is not None: + self.enable_assertion_pass_hook = config.getini( + "enable_assertion_pass_hook" + ) + else: + self.enable_assertion_pass_hook = False + self.source = source + + def run(self, mod: ast.Module) -> None: + """Find all assert statements in *mod* and rewrite them.""" + if not mod.body: + # Nothing to do. + return + + # We'll insert some special imports at the top of the module, but after any + # docstrings and __future__ imports, so first figure out where that is. + doc = getattr(mod, "docstring", None) + expect_docstring = doc is None + if doc is not None and self.is_rewrite_disabled(doc): + return + pos = 0 + lineno = 1 + for item in mod.body: + if ( + expect_docstring + and isinstance(item, ast.Expr) + and isinstance(item.value, ast.Str) + ): + doc = item.value.s + if self.is_rewrite_disabled(doc): + return + expect_docstring = False + elif ( + isinstance(item, ast.ImportFrom) + and item.level == 0 + and item.module == "__future__" + ): + pass + else: + break + pos += 1 + # Special case: for a decorated function, set the lineno to that of the + # first decorator, not the `def`. Issue #4984. + if isinstance(item, ast.FunctionDef) and item.decorator_list: + lineno = item.decorator_list[0].lineno + else: + lineno = item.lineno + # Now actually insert the special imports. + if sys.version_info >= (3, 10): + aliases = [ + ast.alias("builtins", "@py_builtins", lineno=lineno, col_offset=0), + ast.alias( + "_pytest.assertion.rewrite", + "@pytest_ar", + lineno=lineno, + col_offset=0, + ), + ] + else: + aliases = [ + ast.alias("builtins", "@py_builtins"), + ast.alias("_pytest.assertion.rewrite", "@pytest_ar"), + ] + imports = [ + ast.Import([alias], lineno=lineno, col_offset=0) for alias in aliases + ] + mod.body[pos:pos] = imports + + # Collect asserts. + nodes: List[ast.AST] = [mod] + while nodes: + node = nodes.pop() + for name, field in ast.iter_fields(node): + if isinstance(field, list): + new: List[ast.AST] = [] + for i, child in enumerate(field): + if isinstance(child, ast.Assert): + # Transform assert. + new.extend(self.visit(child)) + else: + new.append(child) + if isinstance(child, ast.AST): + nodes.append(child) + setattr(node, name, new) + elif ( + isinstance(field, ast.AST) + # Don't recurse into expressions as they can't contain + # asserts. + and not isinstance(field, ast.expr) + ): + nodes.append(field) + + @staticmethod + def is_rewrite_disabled(docstring: str) -> bool: + return "PYTEST_DONT_REWRITE" in docstring + + def variable(self) -> str: + """Get a new variable.""" + # Use a character invalid in python identifiers to avoid clashing. + name = "@py_assert" + str(next(self.variable_counter)) + self.variables.append(name) + return name + + def assign(self, expr: ast.expr) -> ast.Name: + """Give *expr* a name.""" + name = self.variable() + self.statements.append(ast.Assign([ast.Name(name, ast.Store())], expr)) + return ast.Name(name, ast.Load()) + + def display(self, expr: ast.expr) -> ast.expr: + """Call saferepr on the expression.""" + return self.helper("_saferepr", expr) + + def helper(self, name: str, *args: ast.expr) -> ast.expr: + """Call a helper in this module.""" + py_name = ast.Name("@pytest_ar", ast.Load()) + attr = ast.Attribute(py_name, name, ast.Load()) + return ast.Call(attr, list(args), []) + + def builtin(self, name: str) -> ast.Attribute: + """Return the builtin called *name*.""" + builtin_name = ast.Name("@py_builtins", ast.Load()) + return ast.Attribute(builtin_name, name, ast.Load()) + + def explanation_param(self, expr: ast.expr) -> str: + """Return a new named %-formatting placeholder for expr. + + This creates a %-formatting placeholder for expr in the + current formatting context, e.g. ``%(py0)s``. The placeholder + and expr are placed in the current format context so that it + can be used on the next call to .pop_format_context(). + """ + specifier = "py" + str(next(self.variable_counter)) + self.explanation_specifiers[specifier] = expr + return "%(" + specifier + ")s" + + def push_format_context(self) -> None: + """Create a new formatting context. + + The format context is used for when an explanation wants to + have a variable value formatted in the assertion message. In + this case the value required can be added using + .explanation_param(). Finally .pop_format_context() is used + to format a string of %-formatted values as added by + .explanation_param(). + """ + self.explanation_specifiers: Dict[str, ast.expr] = {} + self.stack.append(self.explanation_specifiers) + + def pop_format_context(self, expl_expr: ast.expr) -> ast.Name: + """Format the %-formatted string with current format context. + + The expl_expr should be an str ast.expr instance constructed from + the %-placeholders created by .explanation_param(). This will + add the required code to format said string to .expl_stmts and + return the ast.Name instance of the formatted string. + """ + current = self.stack.pop() + if self.stack: + self.explanation_specifiers = self.stack[-1] + keys = [ast.Str(key) for key in current.keys()] + format_dict = ast.Dict(keys, list(current.values())) + form = ast.BinOp(expl_expr, ast.Mod(), format_dict) + name = "@py_format" + str(next(self.variable_counter)) + if self.enable_assertion_pass_hook: + self.format_variables.append(name) + self.expl_stmts.append(ast.Assign([ast.Name(name, ast.Store())], form)) + return ast.Name(name, ast.Load()) + + def generic_visit(self, node: ast.AST) -> Tuple[ast.Name, str]: + """Handle expressions we don't have custom code for.""" + assert isinstance(node, ast.expr) + res = self.assign(node) + return res, self.explanation_param(self.display(res)) + + def visit_Assert(self, assert_: ast.Assert) -> List[ast.stmt]: + """Return the AST statements to replace the ast.Assert instance. + + This rewrites the test of an assertion to provide + intermediate values and replace it with an if statement which + raises an assertion error with a detailed explanation in case + the expression is false. + """ + if isinstance(assert_.test, ast.Tuple) and len(assert_.test.elts) >= 1: + from _pytest.warning_types import PytestAssertRewriteWarning + import warnings + + # TODO: This assert should not be needed. + assert self.module_path is not None + warnings.warn_explicit( + PytestAssertRewriteWarning( + "assertion is always true, perhaps remove parentheses?" + ), + category=None, + filename=self.module_path, + lineno=assert_.lineno, + ) + + self.statements: List[ast.stmt] = [] + self.variables: List[str] = [] + self.variable_counter = itertools.count() + + if self.enable_assertion_pass_hook: + self.format_variables: List[str] = [] + + self.stack: List[Dict[str, ast.expr]] = [] + self.expl_stmts: List[ast.stmt] = [] + self.push_format_context() + # Rewrite assert into a bunch of statements. + top_condition, explanation = self.visit(assert_.test) + + negation = ast.UnaryOp(ast.Not(), top_condition) + + if self.enable_assertion_pass_hook: # Experimental pytest_assertion_pass hook + msg = self.pop_format_context(ast.Str(explanation)) + + # Failed + if assert_.msg: + assertmsg = self.helper("_format_assertmsg", assert_.msg) + gluestr = "\n>assert " + else: + assertmsg = ast.Str("") + gluestr = "assert " + err_explanation = ast.BinOp(ast.Str(gluestr), ast.Add(), msg) + err_msg = ast.BinOp(assertmsg, ast.Add(), err_explanation) + err_name = ast.Name("AssertionError", ast.Load()) + fmt = self.helper("_format_explanation", err_msg) + exc = ast.Call(err_name, [fmt], []) + raise_ = ast.Raise(exc, None) + statements_fail = [] + statements_fail.extend(self.expl_stmts) + statements_fail.append(raise_) + + # Passed + fmt_pass = self.helper("_format_explanation", msg) + orig = _get_assertion_exprs(self.source)[assert_.lineno] + hook_call_pass = ast.Expr( + self.helper( + "_call_assertion_pass", + ast.Num(assert_.lineno), + ast.Str(orig), + fmt_pass, + ) + ) + # If any hooks implement assert_pass hook + hook_impl_test = ast.If( + self.helper("_check_if_assertion_pass_impl"), + self.expl_stmts + [hook_call_pass], + [], + ) + statements_pass = [hook_impl_test] + + # Test for assertion condition + main_test = ast.If(negation, statements_fail, statements_pass) + self.statements.append(main_test) + if self.format_variables: + variables = [ + ast.Name(name, ast.Store()) for name in self.format_variables + ] + clear_format = ast.Assign(variables, ast.NameConstant(None)) + self.statements.append(clear_format) + + else: # Original assertion rewriting + # Create failure message. + body = self.expl_stmts + self.statements.append(ast.If(negation, body, [])) + if assert_.msg: + assertmsg = self.helper("_format_assertmsg", assert_.msg) + explanation = "\n>assert " + explanation + else: + assertmsg = ast.Str("") + explanation = "assert " + explanation + template = ast.BinOp(assertmsg, ast.Add(), ast.Str(explanation)) + msg = self.pop_format_context(template) + fmt = self.helper("_format_explanation", msg) + err_name = ast.Name("AssertionError", ast.Load()) + exc = ast.Call(err_name, [fmt], []) + raise_ = ast.Raise(exc, None) + + body.append(raise_) + + # Clear temporary variables by setting them to None. + if self.variables: + variables = [ast.Name(name, ast.Store()) for name in self.variables] + clear = ast.Assign(variables, ast.NameConstant(None)) + self.statements.append(clear) + # Fix locations (line numbers/column offsets). + for stmt in self.statements: + for node in traverse_node(stmt): + ast.copy_location(node, assert_) + return self.statements + + def visit_Name(self, name: ast.Name) -> Tuple[ast.Name, str]: + # Display the repr of the name if it's a local variable or + # _should_repr_global_name() thinks it's acceptable. + locs = ast.Call(self.builtin("locals"), [], []) + inlocs = ast.Compare(ast.Str(name.id), [ast.In()], [locs]) + dorepr = self.helper("_should_repr_global_name", name) + test = ast.BoolOp(ast.Or(), [inlocs, dorepr]) + expr = ast.IfExp(test, self.display(name), ast.Str(name.id)) + return name, self.explanation_param(expr) + + def visit_BoolOp(self, boolop: ast.BoolOp) -> Tuple[ast.Name, str]: + res_var = self.variable() + expl_list = self.assign(ast.List([], ast.Load())) + app = ast.Attribute(expl_list, "append", ast.Load()) + is_or = int(isinstance(boolop.op, ast.Or)) + body = save = self.statements + fail_save = self.expl_stmts + levels = len(boolop.values) - 1 + self.push_format_context() + # Process each operand, short-circuiting if needed. + for i, v in enumerate(boolop.values): + if i: + fail_inner: List[ast.stmt] = [] + # cond is set in a prior loop iteration below + self.expl_stmts.append(ast.If(cond, fail_inner, [])) # noqa + self.expl_stmts = fail_inner + self.push_format_context() + res, expl = self.visit(v) + body.append(ast.Assign([ast.Name(res_var, ast.Store())], res)) + expl_format = self.pop_format_context(ast.Str(expl)) + call = ast.Call(app, [expl_format], []) + self.expl_stmts.append(ast.Expr(call)) + if i < levels: + cond: ast.expr = res + if is_or: + cond = ast.UnaryOp(ast.Not(), cond) + inner: List[ast.stmt] = [] + self.statements.append(ast.If(cond, inner, [])) + self.statements = body = inner + self.statements = save + self.expl_stmts = fail_save + expl_template = self.helper("_format_boolop", expl_list, ast.Num(is_or)) + expl = self.pop_format_context(expl_template) + return ast.Name(res_var, ast.Load()), self.explanation_param(expl) + + def visit_UnaryOp(self, unary: ast.UnaryOp) -> Tuple[ast.Name, str]: + pattern = UNARY_MAP[unary.op.__class__] + operand_res, operand_expl = self.visit(unary.operand) + res = self.assign(ast.UnaryOp(unary.op, operand_res)) + return res, pattern % (operand_expl,) + + def visit_BinOp(self, binop: ast.BinOp) -> Tuple[ast.Name, str]: + symbol = BINOP_MAP[binop.op.__class__] + left_expr, left_expl = self.visit(binop.left) + right_expr, right_expl = self.visit(binop.right) + explanation = f"({left_expl} {symbol} {right_expl})" + res = self.assign(ast.BinOp(left_expr, binop.op, right_expr)) + return res, explanation + + def visit_Call(self, call: ast.Call) -> Tuple[ast.Name, str]: + new_func, func_expl = self.visit(call.func) + arg_expls = [] + new_args = [] + new_kwargs = [] + for arg in call.args: + res, expl = self.visit(arg) + arg_expls.append(expl) + new_args.append(res) + for keyword in call.keywords: + res, expl = self.visit(keyword.value) + new_kwargs.append(ast.keyword(keyword.arg, res)) + if keyword.arg: + arg_expls.append(keyword.arg + "=" + expl) + else: # **args have `arg` keywords with an .arg of None + arg_expls.append("**" + expl) + + expl = "{}({})".format(func_expl, ", ".join(arg_expls)) + new_call = ast.Call(new_func, new_args, new_kwargs) + res = self.assign(new_call) + res_expl = self.explanation_param(self.display(res)) + outer_expl = f"{res_expl}\n{{{res_expl} = {expl}\n}}" + return res, outer_expl + + def visit_Starred(self, starred: ast.Starred) -> Tuple[ast.Starred, str]: + # A Starred node can appear in a function call. + res, expl = self.visit(starred.value) + new_starred = ast.Starred(res, starred.ctx) + return new_starred, "*" + expl + + def visit_Attribute(self, attr: ast.Attribute) -> Tuple[ast.Name, str]: + if not isinstance(attr.ctx, ast.Load): + return self.generic_visit(attr) + value, value_expl = self.visit(attr.value) + res = self.assign(ast.Attribute(value, attr.attr, ast.Load())) + res_expl = self.explanation_param(self.display(res)) + pat = "%s\n{%s = %s.%s\n}" + expl = pat % (res_expl, res_expl, value_expl, attr.attr) + return res, expl + + def visit_Compare(self, comp: ast.Compare) -> Tuple[ast.expr, str]: + self.push_format_context() + left_res, left_expl = self.visit(comp.left) + if isinstance(comp.left, (ast.Compare, ast.BoolOp)): + left_expl = f"({left_expl})" + res_variables = [self.variable() for i in range(len(comp.ops))] + load_names = [ast.Name(v, ast.Load()) for v in res_variables] + store_names = [ast.Name(v, ast.Store()) for v in res_variables] + it = zip(range(len(comp.ops)), comp.ops, comp.comparators) + expls = [] + syms = [] + results = [left_res] + for i, op, next_operand in it: + next_res, next_expl = self.visit(next_operand) + if isinstance(next_operand, (ast.Compare, ast.BoolOp)): + next_expl = f"({next_expl})" + results.append(next_res) + sym = BINOP_MAP[op.__class__] + syms.append(ast.Str(sym)) + expl = f"{left_expl} {sym} {next_expl}" + expls.append(ast.Str(expl)) + res_expr = ast.Compare(left_res, [op], [next_res]) + self.statements.append(ast.Assign([store_names[i]], res_expr)) + left_res, left_expl = next_res, next_expl + # Use pytest.assertion.util._reprcompare if that's available. + expl_call = self.helper( + "_call_reprcompare", + ast.Tuple(syms, ast.Load()), + ast.Tuple(load_names, ast.Load()), + ast.Tuple(expls, ast.Load()), + ast.Tuple(results, ast.Load()), + ) + if len(comp.ops) > 1: + res: ast.expr = ast.BoolOp(ast.And(), load_names) + else: + res = load_names[0] + return res, self.explanation_param(self.pop_format_context(expl_call)) + + +def try_makedirs(cache_dir: Path) -> bool: + """Attempt to create the given directory and sub-directories exist. + + Returns True if successful or if it already exists. + """ + try: + os.makedirs(cache_dir, exist_ok=True) + except (FileNotFoundError, NotADirectoryError, FileExistsError): + # One of the path components was not a directory: + # - we're in a zip file + # - it is a file + return False + except PermissionError: + return False + except OSError as e: + # as of now, EROFS doesn't have an equivalent OSError-subclass + if e.errno == errno.EROFS: + return False + raise + return True + + +def get_cache_dir(file_path: Path) -> Path: + """Return the cache directory to write .pyc files for the given .py file path.""" + if sys.version_info >= (3, 8) and sys.pycache_prefix: + # given: + # prefix = '/tmp/pycs' + # path = '/home/user/proj/test_app.py' + # we want: + # '/tmp/pycs/home/user/proj' + return Path(sys.pycache_prefix) / Path(*file_path.parts[1:-1]) + else: + # classic pycache directory + return file_path.parent / "__pycache__" diff --git a/utils/python-venv/Lib/site-packages/_pytest/assertion/truncate.py b/utils/python-venv/Lib/site-packages/_pytest/assertion/truncate.py new file mode 100644 index 0000000..ce148dc --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/assertion/truncate.py @@ -0,0 +1,94 @@ +"""Utilities for truncating assertion output. + +Current default behaviour is to truncate assertion explanations at +~8 terminal lines, unless running in "-vv" mode or running on CI. +""" +from typing import List +from typing import Optional + +from _pytest.assertion import util +from _pytest.nodes import Item + + +DEFAULT_MAX_LINES = 8 +DEFAULT_MAX_CHARS = 8 * 80 +USAGE_MSG = "use '-vv' to show" + + +def truncate_if_required( + explanation: List[str], item: Item, max_length: Optional[int] = None +) -> List[str]: + """Truncate this assertion explanation if the given test item is eligible.""" + if _should_truncate_item(item): + return _truncate_explanation(explanation) + return explanation + + +def _should_truncate_item(item: Item) -> bool: + """Whether or not this test item is eligible for truncation.""" + verbose = item.config.option.verbose + return verbose < 2 and not util.running_on_ci() + + +def _truncate_explanation( + input_lines: List[str], + max_lines: Optional[int] = None, + max_chars: Optional[int] = None, +) -> List[str]: + """Truncate given list of strings that makes up the assertion explanation. + + Truncates to either 8 lines, or 640 characters - whichever the input reaches + first. The remaining lines will be replaced by a usage message. + """ + + if max_lines is None: + max_lines = DEFAULT_MAX_LINES + if max_chars is None: + max_chars = DEFAULT_MAX_CHARS + + # Check if truncation required + input_char_count = len("".join(input_lines)) + if len(input_lines) <= max_lines and input_char_count <= max_chars: + return input_lines + + # Truncate first to max_lines, and then truncate to max_chars if max_chars + # is exceeded. + truncated_explanation = input_lines[:max_lines] + truncated_explanation = _truncate_by_char_count(truncated_explanation, max_chars) + + # Add ellipsis to final line + truncated_explanation[-1] = truncated_explanation[-1] + "..." + + # Append useful message to explanation + truncated_line_count = len(input_lines) - len(truncated_explanation) + truncated_line_count += 1 # Account for the part-truncated final line + msg = "...Full output truncated" + if truncated_line_count == 1: + msg += f" ({truncated_line_count} line hidden)" + else: + msg += f" ({truncated_line_count} lines hidden)" + msg += f", {USAGE_MSG}" + truncated_explanation.extend(["", str(msg)]) + return truncated_explanation + + +def _truncate_by_char_count(input_lines: List[str], max_chars: int) -> List[str]: + # Check if truncation required + if len("".join(input_lines)) <= max_chars: + return input_lines + + # Find point at which input length exceeds total allowed length + iterated_char_count = 0 + for iterated_index, input_line in enumerate(input_lines): + if iterated_char_count + len(input_line) > max_chars: + break + iterated_char_count += len(input_line) + + # Create truncated explanation with modified final line + truncated_result = input_lines[:iterated_index] + final_line = input_lines[iterated_index] + if final_line: + final_line_truncate_point = max_chars - iterated_char_count + final_line = final_line[:final_line_truncate_point] + truncated_result.append(final_line) + return truncated_result diff --git a/utils/python-venv/Lib/site-packages/_pytest/assertion/util.py b/utils/python-venv/Lib/site-packages/_pytest/assertion/util.py new file mode 100644 index 0000000..fc5dfdb --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/assertion/util.py @@ -0,0 +1,522 @@ +"""Utilities for assertion debugging.""" +import collections.abc +import os +import pprint +from typing import AbstractSet +from typing import Any +from typing import Callable +from typing import Iterable +from typing import List +from typing import Mapping +from typing import Optional +from typing import Sequence +from unicodedata import normalize + +import _pytest._code +from _pytest import outcomes +from _pytest._io.saferepr import _pformat_dispatch +from _pytest._io.saferepr import saferepr +from _pytest._io.saferepr import saferepr_unlimited +from _pytest.config import Config + +# The _reprcompare attribute on the util module is used by the new assertion +# interpretation code and assertion rewriter to detect this plugin was +# loaded and in turn call the hooks defined here as part of the +# DebugInterpreter. +_reprcompare: Optional[Callable[[str, object, object], Optional[str]]] = None + +# Works similarly as _reprcompare attribute. Is populated with the hook call +# when pytest_runtest_setup is called. +_assertion_pass: Optional[Callable[[int, str, str], None]] = None + +# Config object which is assigned during pytest_runtest_protocol. +_config: Optional[Config] = None + + +def format_explanation(explanation: str) -> str: + r"""Format an explanation. + + Normally all embedded newlines are escaped, however there are + three exceptions: \n{, \n} and \n~. The first two are intended + cover nested explanations, see function and attribute explanations + for examples (.visit_Call(), visit_Attribute()). The last one is + for when one explanation needs to span multiple lines, e.g. when + displaying diffs. + """ + lines = _split_explanation(explanation) + result = _format_lines(lines) + return "\n".join(result) + + +def _split_explanation(explanation: str) -> List[str]: + r"""Return a list of individual lines in the explanation. + + This will return a list of lines split on '\n{', '\n}' and '\n~'. + Any other newlines will be escaped and appear in the line as the + literal '\n' characters. + """ + raw_lines = (explanation or "").split("\n") + lines = [raw_lines[0]] + for values in raw_lines[1:]: + if values and values[0] in ["{", "}", "~", ">"]: + lines.append(values) + else: + lines[-1] += "\\n" + values + return lines + + +def _format_lines(lines: Sequence[str]) -> List[str]: + """Format the individual lines. + + This will replace the '{', '}' and '~' characters of our mini formatting + language with the proper 'where ...', 'and ...' and ' + ...' text, taking + care of indentation along the way. + + Return a list of formatted lines. + """ + result = list(lines[:1]) + stack = [0] + stackcnt = [0] + for line in lines[1:]: + if line.startswith("{"): + if stackcnt[-1]: + s = "and " + else: + s = "where " + stack.append(len(result)) + stackcnt[-1] += 1 + stackcnt.append(0) + result.append(" +" + " " * (len(stack) - 1) + s + line[1:]) + elif line.startswith("}"): + stack.pop() + stackcnt.pop() + result[stack[-1]] += line[1:] + else: + assert line[0] in ["~", ">"] + stack[-1] += 1 + indent = len(stack) if line.startswith("~") else len(stack) - 1 + result.append(" " * indent + line[1:]) + assert len(stack) == 1 + return result + + +def issequence(x: Any) -> bool: + return isinstance(x, collections.abc.Sequence) and not isinstance(x, str) + + +def istext(x: Any) -> bool: + return isinstance(x, str) + + +def isdict(x: Any) -> bool: + return isinstance(x, dict) + + +def isset(x: Any) -> bool: + return isinstance(x, (set, frozenset)) + + +def isnamedtuple(obj: Any) -> bool: + return isinstance(obj, tuple) and getattr(obj, "_fields", None) is not None + + +def isdatacls(obj: Any) -> bool: + return getattr(obj, "__dataclass_fields__", None) is not None + + +def isattrs(obj: Any) -> bool: + return getattr(obj, "__attrs_attrs__", None) is not None + + +def isiterable(obj: Any) -> bool: + try: + iter(obj) + return not istext(obj) + except TypeError: + return False + + +def has_default_eq( + obj: object, +) -> bool: + """Check if an instance of an object contains the default eq + + First, we check if the object's __eq__ attribute has __code__, + if so, we check the equally of the method code filename (__code__.co_filename) + to the default one generated by the dataclass and attr module + for dataclasses the default co_filename is , for attrs class, the __eq__ should contain "attrs eq generated" + """ + # inspired from https://github.com/willmcgugan/rich/blob/07d51ffc1aee6f16bd2e5a25b4e82850fb9ed778/rich/pretty.py#L68 + if hasattr(obj.__eq__, "__code__") and hasattr(obj.__eq__.__code__, "co_filename"): + code_filename = obj.__eq__.__code__.co_filename + + if isattrs(obj): + return "attrs generated eq" in code_filename + + return code_filename == "" # data class + return True + + +def assertrepr_compare( + config, op: str, left: Any, right: Any, use_ascii: bool = False +) -> Optional[List[str]]: + """Return specialised explanations for some operators/operands.""" + verbose = config.getoption("verbose") + + # Strings which normalize equal are often hard to distinguish when printed; use ascii() to make this easier. + # See issue #3246. + use_ascii = ( + isinstance(left, str) + and isinstance(right, str) + and normalize("NFD", left) == normalize("NFD", right) + ) + + if verbose > 1: + left_repr = saferepr_unlimited(left, use_ascii=use_ascii) + right_repr = saferepr_unlimited(right, use_ascii=use_ascii) + else: + # XXX: "15 chars indentation" is wrong + # ("E AssertionError: assert "); should use term width. + maxsize = ( + 80 - 15 - len(op) - 2 + ) // 2 # 15 chars indentation, 1 space around op + + left_repr = saferepr(left, maxsize=maxsize, use_ascii=use_ascii) + right_repr = saferepr(right, maxsize=maxsize, use_ascii=use_ascii) + + summary = f"{left_repr} {op} {right_repr}" + + explanation = None + try: + if op == "==": + explanation = _compare_eq_any(left, right, verbose) + elif op == "not in": + if istext(left) and istext(right): + explanation = _notin_text(left, right, verbose) + except outcomes.Exit: + raise + except Exception: + explanation = [ + "(pytest_assertion plugin: representation of details failed: {}.".format( + _pytest._code.ExceptionInfo.from_current()._getreprcrash() + ), + " Probably an object has a faulty __repr__.)", + ] + + if not explanation: + return None + + return [summary] + explanation + + +def _compare_eq_any(left: Any, right: Any, verbose: int = 0) -> List[str]: + explanation = [] + if istext(left) and istext(right): + explanation = _diff_text(left, right, verbose) + else: + from _pytest.python_api import ApproxBase + + if isinstance(left, ApproxBase) or isinstance(right, ApproxBase): + # Although the common order should be obtained == expected, this ensures both ways + approx_side = left if isinstance(left, ApproxBase) else right + other_side = right if isinstance(left, ApproxBase) else left + + explanation = approx_side._repr_compare(other_side) + elif type(left) == type(right) and ( + isdatacls(left) or isattrs(left) or isnamedtuple(left) + ): + # Note: unlike dataclasses/attrs, namedtuples compare only the + # field values, not the type or field names. But this branch + # intentionally only handles the same-type case, which was often + # used in older code bases before dataclasses/attrs were available. + explanation = _compare_eq_cls(left, right, verbose) + elif issequence(left) and issequence(right): + explanation = _compare_eq_sequence(left, right, verbose) + elif isset(left) and isset(right): + explanation = _compare_eq_set(left, right, verbose) + elif isdict(left) and isdict(right): + explanation = _compare_eq_dict(left, right, verbose) + + if isiterable(left) and isiterable(right): + expl = _compare_eq_iterable(left, right, verbose) + explanation.extend(expl) + + return explanation + + +def _diff_text(left: str, right: str, verbose: int = 0) -> List[str]: + """Return the explanation for the diff between text. + + Unless --verbose is used this will skip leading and trailing + characters which are identical to keep the diff minimal. + """ + from difflib import ndiff + + explanation: List[str] = [] + + if verbose < 1: + i = 0 # just in case left or right has zero length + for i in range(min(len(left), len(right))): + if left[i] != right[i]: + break + if i > 42: + i -= 10 # Provide some context + explanation = [ + "Skipping %s identical leading characters in diff, use -v to show" % i + ] + left = left[i:] + right = right[i:] + if len(left) == len(right): + for i in range(len(left)): + if left[-i] != right[-i]: + break + if i > 42: + i -= 10 # Provide some context + explanation += [ + "Skipping {} identical trailing " + "characters in diff, use -v to show".format(i) + ] + left = left[:-i] + right = right[:-i] + keepends = True + if left.isspace() or right.isspace(): + left = repr(str(left)) + right = repr(str(right)) + explanation += ["Strings contain only whitespace, escaping them using repr()"] + # "right" is the expected base against which we compare "left", + # see https://github.com/pytest-dev/pytest/issues/3333 + explanation += [ + line.strip("\n") + for line in ndiff(right.splitlines(keepends), left.splitlines(keepends)) + ] + return explanation + + +def _surrounding_parens_on_own_lines(lines: List[str]) -> None: + """Move opening/closing parenthesis/bracket to own lines.""" + opening = lines[0][:1] + if opening in ["(", "[", "{"]: + lines[0] = " " + lines[0][1:] + lines[:] = [opening] + lines + closing = lines[-1][-1:] + if closing in [")", "]", "}"]: + lines[-1] = lines[-1][:-1] + "," + lines[:] = lines + [closing] + + +def _compare_eq_iterable( + left: Iterable[Any], right: Iterable[Any], verbose: int = 0 +) -> List[str]: + if verbose <= 0 and not running_on_ci(): + return ["Use -v to get more diff"] + # dynamic import to speedup pytest + import difflib + + left_formatting = pprint.pformat(left).splitlines() + right_formatting = pprint.pformat(right).splitlines() + + # Re-format for different output lengths. + lines_left = len(left_formatting) + lines_right = len(right_formatting) + if lines_left != lines_right: + left_formatting = _pformat_dispatch(left).splitlines() + right_formatting = _pformat_dispatch(right).splitlines() + + if lines_left > 1 or lines_right > 1: + _surrounding_parens_on_own_lines(left_formatting) + _surrounding_parens_on_own_lines(right_formatting) + + explanation = ["Full diff:"] + # "right" is the expected base against which we compare "left", + # see https://github.com/pytest-dev/pytest/issues/3333 + explanation.extend( + line.rstrip() for line in difflib.ndiff(right_formatting, left_formatting) + ) + return explanation + + +def _compare_eq_sequence( + left: Sequence[Any], right: Sequence[Any], verbose: int = 0 +) -> List[str]: + comparing_bytes = isinstance(left, bytes) and isinstance(right, bytes) + explanation: List[str] = [] + len_left = len(left) + len_right = len(right) + for i in range(min(len_left, len_right)): + if left[i] != right[i]: + if comparing_bytes: + # when comparing bytes, we want to see their ascii representation + # instead of their numeric values (#5260) + # using a slice gives us the ascii representation: + # >>> s = b'foo' + # >>> s[0] + # 102 + # >>> s[0:1] + # b'f' + left_value = left[i : i + 1] + right_value = right[i : i + 1] + else: + left_value = left[i] + right_value = right[i] + + explanation += [f"At index {i} diff: {left_value!r} != {right_value!r}"] + break + + if comparing_bytes: + # when comparing bytes, it doesn't help to show the "sides contain one or more + # items" longer explanation, so skip it + + return explanation + + len_diff = len_left - len_right + if len_diff: + if len_diff > 0: + dir_with_more = "Left" + extra = saferepr(left[len_right]) + else: + len_diff = 0 - len_diff + dir_with_more = "Right" + extra = saferepr(right[len_left]) + + if len_diff == 1: + explanation += [f"{dir_with_more} contains one more item: {extra}"] + else: + explanation += [ + "%s contains %d more items, first extra item: %s" + % (dir_with_more, len_diff, extra) + ] + return explanation + + +def _compare_eq_set( + left: AbstractSet[Any], right: AbstractSet[Any], verbose: int = 0 +) -> List[str]: + explanation = [] + diff_left = left - right + diff_right = right - left + if diff_left: + explanation.append("Extra items in the left set:") + for item in diff_left: + explanation.append(saferepr(item)) + if diff_right: + explanation.append("Extra items in the right set:") + for item in diff_right: + explanation.append(saferepr(item)) + return explanation + + +def _compare_eq_dict( + left: Mapping[Any, Any], right: Mapping[Any, Any], verbose: int = 0 +) -> List[str]: + explanation: List[str] = [] + set_left = set(left) + set_right = set(right) + common = set_left.intersection(set_right) + same = {k: left[k] for k in common if left[k] == right[k]} + if same and verbose < 2: + explanation += ["Omitting %s identical items, use -vv to show" % len(same)] + elif same: + explanation += ["Common items:"] + explanation += pprint.pformat(same).splitlines() + diff = {k for k in common if left[k] != right[k]} + if diff: + explanation += ["Differing items:"] + for k in diff: + explanation += [saferepr({k: left[k]}) + " != " + saferepr({k: right[k]})] + extra_left = set_left - set_right + len_extra_left = len(extra_left) + if len_extra_left: + explanation.append( + "Left contains %d more item%s:" + % (len_extra_left, "" if len_extra_left == 1 else "s") + ) + explanation.extend( + pprint.pformat({k: left[k] for k in extra_left}).splitlines() + ) + extra_right = set_right - set_left + len_extra_right = len(extra_right) + if len_extra_right: + explanation.append( + "Right contains %d more item%s:" + % (len_extra_right, "" if len_extra_right == 1 else "s") + ) + explanation.extend( + pprint.pformat({k: right[k] for k in extra_right}).splitlines() + ) + return explanation + + +def _compare_eq_cls(left: Any, right: Any, verbose: int) -> List[str]: + if not has_default_eq(left): + return [] + if isdatacls(left): + import dataclasses + + all_fields = dataclasses.fields(left) + fields_to_check = [info.name for info in all_fields if info.compare] + elif isattrs(left): + all_fields = left.__attrs_attrs__ + fields_to_check = [field.name for field in all_fields if getattr(field, "eq")] + elif isnamedtuple(left): + fields_to_check = left._fields + else: + assert False + + indent = " " + same = [] + diff = [] + for field in fields_to_check: + if getattr(left, field) == getattr(right, field): + same.append(field) + else: + diff.append(field) + + explanation = [] + if same or diff: + explanation += [""] + if same and verbose < 2: + explanation.append("Omitting %s identical items, use -vv to show" % len(same)) + elif same: + explanation += ["Matching attributes:"] + explanation += pprint.pformat(same).splitlines() + if diff: + explanation += ["Differing attributes:"] + explanation += pprint.pformat(diff).splitlines() + for field in diff: + field_left = getattr(left, field) + field_right = getattr(right, field) + explanation += [ + "", + "Drill down into differing attribute %s:" % field, + ("%s%s: %r != %r") % (indent, field, field_left, field_right), + ] + explanation += [ + indent + line + for line in _compare_eq_any(field_left, field_right, verbose) + ] + return explanation + + +def _notin_text(term: str, text: str, verbose: int = 0) -> List[str]: + index = text.find(term) + head = text[:index] + tail = text[index + len(term) :] + correct_text = head + tail + diff = _diff_text(text, correct_text, verbose) + newdiff = ["%s is contained here:" % saferepr(term, maxsize=42)] + for line in diff: + if line.startswith("Skipping"): + continue + if line.startswith("- "): + continue + if line.startswith("+ "): + newdiff.append(" " + line[2:]) + else: + newdiff.append(line) + return newdiff + + +def running_on_ci() -> bool: + """Check if we're currently running on a CI system.""" + env_vars = ["CI", "BUILD_NUMBER"] + return any(var in os.environ for var in env_vars) diff --git a/utils/python-venv/Lib/site-packages/_pytest/cacheprovider.py b/utils/python-venv/Lib/site-packages/_pytest/cacheprovider.py new file mode 100644 index 0000000..777c1b0 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/cacheprovider.py @@ -0,0 +1,580 @@ +"""Implementation of the cache provider.""" +# This plugin was not named "cache" to avoid conflicts with the external +# pytest-cache version. +import json +import os +from pathlib import Path +from typing import Dict +from typing import Generator +from typing import Iterable +from typing import List +from typing import Optional +from typing import Set +from typing import Union + +import attr + +from .pathlib import resolve_from_str +from .pathlib import rm_rf +from .reports import CollectReport +from _pytest import nodes +from _pytest._io import TerminalWriter +from _pytest.compat import final +from _pytest.config import Config +from _pytest.config import ExitCode +from _pytest.config import hookimpl +from _pytest.config.argparsing import Parser +from _pytest.deprecated import check_ispytest +from _pytest.fixtures import fixture +from _pytest.fixtures import FixtureRequest +from _pytest.main import Session +from _pytest.python import Module +from _pytest.python import Package +from _pytest.reports import TestReport + + +README_CONTENT = """\ +# pytest cache directory # + +This directory contains data from the pytest's cache plugin, +which provides the `--lf` and `--ff` options, as well as the `cache` fixture. + +**Do not** commit this to version control. + +See [the docs](https://docs.pytest.org/en/stable/how-to/cache.html) for more information. +""" + +CACHEDIR_TAG_CONTENT = b"""\ +Signature: 8a477f597d28d172789f06886806bc55 +# This file is a cache directory tag created by pytest. +# For information about cache directory tags, see: +# https://bford.info/cachedir/spec.html +""" + + +@final +@attr.s(init=False, auto_attribs=True) +class Cache: + _cachedir: Path = attr.ib(repr=False) + _config: Config = attr.ib(repr=False) + + # Sub-directory under cache-dir for directories created by `mkdir()`. + _CACHE_PREFIX_DIRS = "d" + + # Sub-directory under cache-dir for values created by `set()`. + _CACHE_PREFIX_VALUES = "v" + + def __init__( + self, cachedir: Path, config: Config, *, _ispytest: bool = False + ) -> None: + check_ispytest(_ispytest) + self._cachedir = cachedir + self._config = config + + @classmethod + def for_config(cls, config: Config, *, _ispytest: bool = False) -> "Cache": + """Create the Cache instance for a Config. + + :meta private: + """ + check_ispytest(_ispytest) + cachedir = cls.cache_dir_from_config(config, _ispytest=True) + if config.getoption("cacheclear") and cachedir.is_dir(): + cls.clear_cache(cachedir, _ispytest=True) + return cls(cachedir, config, _ispytest=True) + + @classmethod + def clear_cache(cls, cachedir: Path, _ispytest: bool = False) -> None: + """Clear the sub-directories used to hold cached directories and values. + + :meta private: + """ + check_ispytest(_ispytest) + for prefix in (cls._CACHE_PREFIX_DIRS, cls._CACHE_PREFIX_VALUES): + d = cachedir / prefix + if d.is_dir(): + rm_rf(d) + + @staticmethod + def cache_dir_from_config(config: Config, *, _ispytest: bool = False) -> Path: + """Get the path to the cache directory for a Config. + + :meta private: + """ + check_ispytest(_ispytest) + return resolve_from_str(config.getini("cache_dir"), config.rootpath) + + def warn(self, fmt: str, *, _ispytest: bool = False, **args: object) -> None: + """Issue a cache warning. + + :meta private: + """ + check_ispytest(_ispytest) + import warnings + from _pytest.warning_types import PytestCacheWarning + + warnings.warn( + PytestCacheWarning(fmt.format(**args) if args else fmt), + self._config.hook, + stacklevel=3, + ) + + def mkdir(self, name: str) -> Path: + """Return a directory path object with the given name. + + If the directory does not yet exist, it will be created. You can use + it to manage files to e.g. store/retrieve database dumps across test + sessions. + + .. versionadded:: 7.0 + + :param name: + Must be a string not containing a ``/`` separator. + Make sure the name contains your plugin or application + identifiers to prevent clashes with other cache users. + """ + path = Path(name) + if len(path.parts) > 1: + raise ValueError("name is not allowed to contain path separators") + res = self._cachedir.joinpath(self._CACHE_PREFIX_DIRS, path) + res.mkdir(exist_ok=True, parents=True) + return res + + def _getvaluepath(self, key: str) -> Path: + return self._cachedir.joinpath(self._CACHE_PREFIX_VALUES, Path(key)) + + def get(self, key: str, default): + """Return the cached value for the given key. + + If no value was yet cached or the value cannot be read, the specified + default is returned. + + :param key: + Must be a ``/`` separated value. Usually the first + name is the name of your plugin or your application. + :param default: + The value to return in case of a cache-miss or invalid cache value. + """ + path = self._getvaluepath(key) + try: + with path.open("r", encoding="UTF-8") as f: + return json.load(f) + except (ValueError, OSError): + return default + + def set(self, key: str, value: object) -> None: + """Save value for the given key. + + :param key: + Must be a ``/`` separated value. Usually the first + name is the name of your plugin or your application. + :param value: + Must be of any combination of basic python types, + including nested types like lists of dictionaries. + """ + path = self._getvaluepath(key) + try: + if path.parent.is_dir(): + cache_dir_exists_already = True + else: + cache_dir_exists_already = self._cachedir.exists() + path.parent.mkdir(exist_ok=True, parents=True) + except OSError: + self.warn("could not create cache path {path}", path=path, _ispytest=True) + return + if not cache_dir_exists_already: + self._ensure_supporting_files() + data = json.dumps(value, ensure_ascii=False, indent=2) + try: + f = path.open("w", encoding="UTF-8") + except OSError: + self.warn("cache could not write path {path}", path=path, _ispytest=True) + else: + with f: + f.write(data) + + def _ensure_supporting_files(self) -> None: + """Create supporting files in the cache dir that are not really part of the cache.""" + readme_path = self._cachedir / "README.md" + readme_path.write_text(README_CONTENT, encoding="UTF-8") + + gitignore_path = self._cachedir.joinpath(".gitignore") + msg = "# Created by pytest automatically.\n*\n" + gitignore_path.write_text(msg, encoding="UTF-8") + + cachedir_tag_path = self._cachedir.joinpath("CACHEDIR.TAG") + cachedir_tag_path.write_bytes(CACHEDIR_TAG_CONTENT) + + +class LFPluginCollWrapper: + def __init__(self, lfplugin: "LFPlugin") -> None: + self.lfplugin = lfplugin + self._collected_at_least_one_failure = False + + @hookimpl(hookwrapper=True) + def pytest_make_collect_report(self, collector: nodes.Collector): + if isinstance(collector, Session): + out = yield + res: CollectReport = out.get_result() + + # Sort any lf-paths to the beginning. + lf_paths = self.lfplugin._last_failed_paths + + res.result = sorted( + res.result, + # use stable sort to priorize last failed + key=lambda x: x.path in lf_paths, + reverse=True, + ) + return + + elif isinstance(collector, Module): + if collector.path in self.lfplugin._last_failed_paths: + out = yield + res = out.get_result() + result = res.result + lastfailed = self.lfplugin.lastfailed + + # Only filter with known failures. + if not self._collected_at_least_one_failure: + if not any(x.nodeid in lastfailed for x in result): + return + self.lfplugin.config.pluginmanager.register( + LFPluginCollSkipfiles(self.lfplugin), "lfplugin-collskip" + ) + self._collected_at_least_one_failure = True + + session = collector.session + result[:] = [ + x + for x in result + if x.nodeid in lastfailed + # Include any passed arguments (not trivial to filter). + or session.isinitpath(x.path) + # Keep all sub-collectors. + or isinstance(x, nodes.Collector) + ] + return + yield + + +class LFPluginCollSkipfiles: + def __init__(self, lfplugin: "LFPlugin") -> None: + self.lfplugin = lfplugin + + @hookimpl + def pytest_make_collect_report( + self, collector: nodes.Collector + ) -> Optional[CollectReport]: + # Packages are Modules, but _last_failed_paths only contains + # test-bearing paths and doesn't try to include the paths of their + # packages, so don't filter them. + if isinstance(collector, Module) and not isinstance(collector, Package): + if collector.path not in self.lfplugin._last_failed_paths: + self.lfplugin._skipped_files += 1 + + return CollectReport( + collector.nodeid, "passed", longrepr=None, result=[] + ) + return None + + +class LFPlugin: + """Plugin which implements the --lf (run last-failing) option.""" + + def __init__(self, config: Config) -> None: + self.config = config + active_keys = "lf", "failedfirst" + self.active = any(config.getoption(key) for key in active_keys) + assert config.cache + self.lastfailed: Dict[str, bool] = config.cache.get("cache/lastfailed", {}) + self._previously_failed_count: Optional[int] = None + self._report_status: Optional[str] = None + self._skipped_files = 0 # count skipped files during collection due to --lf + + if config.getoption("lf"): + self._last_failed_paths = self.get_last_failed_paths() + config.pluginmanager.register( + LFPluginCollWrapper(self), "lfplugin-collwrapper" + ) + + def get_last_failed_paths(self) -> Set[Path]: + """Return a set with all Paths()s of the previously failed nodeids.""" + rootpath = self.config.rootpath + result = {rootpath / nodeid.split("::")[0] for nodeid in self.lastfailed} + return {x for x in result if x.exists()} + + def pytest_report_collectionfinish(self) -> Optional[str]: + if self.active and self.config.getoption("verbose") >= 0: + return "run-last-failure: %s" % self._report_status + return None + + def pytest_runtest_logreport(self, report: TestReport) -> None: + if (report.when == "call" and report.passed) or report.skipped: + self.lastfailed.pop(report.nodeid, None) + elif report.failed: + self.lastfailed[report.nodeid] = True + + def pytest_collectreport(self, report: CollectReport) -> None: + passed = report.outcome in ("passed", "skipped") + if passed: + if report.nodeid in self.lastfailed: + self.lastfailed.pop(report.nodeid) + self.lastfailed.update((item.nodeid, True) for item in report.result) + else: + self.lastfailed[report.nodeid] = True + + @hookimpl(hookwrapper=True, tryfirst=True) + def pytest_collection_modifyitems( + self, config: Config, items: List[nodes.Item] + ) -> Generator[None, None, None]: + yield + + if not self.active: + return + + if self.lastfailed: + previously_failed = [] + previously_passed = [] + for item in items: + if item.nodeid in self.lastfailed: + previously_failed.append(item) + else: + previously_passed.append(item) + self._previously_failed_count = len(previously_failed) + + if not previously_failed: + # Running a subset of all tests with recorded failures + # only outside of it. + self._report_status = "%d known failures not in selected tests" % ( + len(self.lastfailed), + ) + else: + if self.config.getoption("lf"): + items[:] = previously_failed + config.hook.pytest_deselected(items=previously_passed) + else: # --failedfirst + items[:] = previously_failed + previously_passed + + noun = "failure" if self._previously_failed_count == 1 else "failures" + suffix = " first" if self.config.getoption("failedfirst") else "" + self._report_status = "rerun previous {count} {noun}{suffix}".format( + count=self._previously_failed_count, suffix=suffix, noun=noun + ) + + if self._skipped_files > 0: + files_noun = "file" if self._skipped_files == 1 else "files" + self._report_status += " (skipped {files} {files_noun})".format( + files=self._skipped_files, files_noun=files_noun + ) + else: + self._report_status = "no previously failed tests, " + if self.config.getoption("last_failed_no_failures") == "none": + self._report_status += "deselecting all items." + config.hook.pytest_deselected(items=items[:]) + items[:] = [] + else: + self._report_status += "not deselecting items." + + def pytest_sessionfinish(self, session: Session) -> None: + config = self.config + if config.getoption("cacheshow") or hasattr(config, "workerinput"): + return + + assert config.cache is not None + saved_lastfailed = config.cache.get("cache/lastfailed", {}) + if saved_lastfailed != self.lastfailed: + config.cache.set("cache/lastfailed", self.lastfailed) + + +class NFPlugin: + """Plugin which implements the --nf (run new-first) option.""" + + def __init__(self, config: Config) -> None: + self.config = config + self.active = config.option.newfirst + assert config.cache is not None + self.cached_nodeids = set(config.cache.get("cache/nodeids", [])) + + @hookimpl(hookwrapper=True, tryfirst=True) + def pytest_collection_modifyitems( + self, items: List[nodes.Item] + ) -> Generator[None, None, None]: + yield + + if self.active: + new_items: Dict[str, nodes.Item] = {} + other_items: Dict[str, nodes.Item] = {} + for item in items: + if item.nodeid not in self.cached_nodeids: + new_items[item.nodeid] = item + else: + other_items[item.nodeid] = item + + items[:] = self._get_increasing_order( + new_items.values() + ) + self._get_increasing_order(other_items.values()) + self.cached_nodeids.update(new_items) + else: + self.cached_nodeids.update(item.nodeid for item in items) + + def _get_increasing_order(self, items: Iterable[nodes.Item]) -> List[nodes.Item]: + return sorted(items, key=lambda item: item.path.stat().st_mtime, reverse=True) # type: ignore[no-any-return] + + def pytest_sessionfinish(self) -> None: + config = self.config + if config.getoption("cacheshow") or hasattr(config, "workerinput"): + return + + if config.getoption("collectonly"): + return + + assert config.cache is not None + config.cache.set("cache/nodeids", sorted(self.cached_nodeids)) + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("general") + group.addoption( + "--lf", + "--last-failed", + action="store_true", + dest="lf", + help="Rerun only the tests that failed " + "at the last run (or all if none failed)", + ) + group.addoption( + "--ff", + "--failed-first", + action="store_true", + dest="failedfirst", + help="Run all tests, but run the last failures first. " + "This may re-order tests and thus lead to " + "repeated fixture setup/teardown.", + ) + group.addoption( + "--nf", + "--new-first", + action="store_true", + dest="newfirst", + help="Run tests from new files first, then the rest of the tests " + "sorted by file mtime", + ) + group.addoption( + "--cache-show", + action="append", + nargs="?", + dest="cacheshow", + help=( + "Show cache contents, don't perform collection or tests. " + "Optional argument: glob (default: '*')." + ), + ) + group.addoption( + "--cache-clear", + action="store_true", + dest="cacheclear", + help="Remove all cache contents at start of test run", + ) + cache_dir_default = ".pytest_cache" + if "TOX_ENV_DIR" in os.environ: + cache_dir_default = os.path.join(os.environ["TOX_ENV_DIR"], cache_dir_default) + parser.addini("cache_dir", default=cache_dir_default, help="Cache directory path") + group.addoption( + "--lfnf", + "--last-failed-no-failures", + action="store", + dest="last_failed_no_failures", + choices=("all", "none"), + default="all", + help="Which tests to run with no previously (known) failures", + ) + + +def pytest_cmdline_main(config: Config) -> Optional[Union[int, ExitCode]]: + if config.option.cacheshow: + from _pytest.main import wrap_session + + return wrap_session(config, cacheshow) + return None + + +@hookimpl(tryfirst=True) +def pytest_configure(config: Config) -> None: + config.cache = Cache.for_config(config, _ispytest=True) + config.pluginmanager.register(LFPlugin(config), "lfplugin") + config.pluginmanager.register(NFPlugin(config), "nfplugin") + + +@fixture +def cache(request: FixtureRequest) -> Cache: + """Return a cache object that can persist state between testing sessions. + + cache.get(key, default) + cache.set(key, value) + + Keys must be ``/`` separated strings, where the first part is usually the + name of your plugin or application to avoid clashes with other cache users. + + Values can be any object handled by the json stdlib module. + """ + assert request.config.cache is not None + return request.config.cache + + +def pytest_report_header(config: Config) -> Optional[str]: + """Display cachedir with --cache-show and if non-default.""" + if config.option.verbose > 0 or config.getini("cache_dir") != ".pytest_cache": + assert config.cache is not None + cachedir = config.cache._cachedir + # TODO: evaluate generating upward relative paths + # starting with .., ../.. if sensible + + try: + displaypath = cachedir.relative_to(config.rootpath) + except ValueError: + displaypath = cachedir + return f"cachedir: {displaypath}" + return None + + +def cacheshow(config: Config, session: Session) -> int: + from pprint import pformat + + assert config.cache is not None + + tw = TerminalWriter() + tw.line("cachedir: " + str(config.cache._cachedir)) + if not config.cache._cachedir.is_dir(): + tw.line("cache is empty") + return 0 + + glob = config.option.cacheshow[0] + if glob is None: + glob = "*" + + dummy = object() + basedir = config.cache._cachedir + vdir = basedir / Cache._CACHE_PREFIX_VALUES + tw.sep("-", "cache values for %r" % glob) + for valpath in sorted(x for x in vdir.rglob(glob) if x.is_file()): + key = str(valpath.relative_to(vdir)) + val = config.cache.get(key, dummy) + if val is dummy: + tw.line("%s contains unreadable content, will be ignored" % key) + else: + tw.line("%s contains:" % key) + for line in pformat(val).splitlines(): + tw.line(" " + line) + + ddir = basedir / Cache._CACHE_PREFIX_DIRS + if ddir.is_dir(): + contents = sorted(ddir.rglob(glob)) + tw.sep("-", "cache directories for %r" % glob) + for p in contents: + # if p.is_dir(): + # print("%s/" % p.relative_to(basedir)) + if p.is_file(): + key = str(p.relative_to(basedir)) + tw.line(f"{key} is a file of length {p.stat().st_size:d}") + return 0 diff --git a/utils/python-venv/Lib/site-packages/_pytest/capture.py b/utils/python-venv/Lib/site-packages/_pytest/capture.py new file mode 100644 index 0000000..6131a46 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/capture.py @@ -0,0 +1,1014 @@ +"""Per-test stdout/stderr capturing mechanism.""" +import contextlib +import functools +import io +import os +import sys +from io import UnsupportedOperation +from tempfile import TemporaryFile +from typing import Any +from typing import AnyStr +from typing import Generator +from typing import Generic +from typing import Iterator +from typing import Optional +from typing import TextIO +from typing import Tuple +from typing import TYPE_CHECKING +from typing import Union + +from _pytest.compat import final +from _pytest.config import Config +from _pytest.config import hookimpl +from _pytest.config.argparsing import Parser +from _pytest.deprecated import check_ispytest +from _pytest.fixtures import fixture +from _pytest.fixtures import SubRequest +from _pytest.nodes import Collector +from _pytest.nodes import File +from _pytest.nodes import Item + +if TYPE_CHECKING: + from typing_extensions import Literal + + _CaptureMethod = Literal["fd", "sys", "no", "tee-sys"] + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("general") + group._addoption( + "--capture", + action="store", + default="fd", + metavar="method", + choices=["fd", "sys", "no", "tee-sys"], + help="Per-test capturing method: one of fd|sys|no|tee-sys", + ) + group._addoption( + "-s", + action="store_const", + const="no", + dest="capture", + help="Shortcut for --capture=no", + ) + + +def _colorama_workaround() -> None: + """Ensure colorama is imported so that it attaches to the correct stdio + handles on Windows. + + colorama uses the terminal on import time. So if something does the + first import of colorama while I/O capture is active, colorama will + fail in various ways. + """ + if sys.platform.startswith("win32"): + try: + import colorama # noqa: F401 + except ImportError: + pass + + +def _windowsconsoleio_workaround(stream: TextIO) -> None: + """Workaround for Windows Unicode console handling. + + Python 3.6 implemented Unicode console handling for Windows. This works + by reading/writing to the raw console handle using + ``{Read,Write}ConsoleW``. + + The problem is that we are going to ``dup2`` over the stdio file + descriptors when doing ``FDCapture`` and this will ``CloseHandle`` the + handles used by Python to write to the console. Though there is still some + weirdness and the console handle seems to only be closed randomly and not + on the first call to ``CloseHandle``, or maybe it gets reopened with the + same handle value when we suspend capturing. + + The workaround in this case will reopen stdio with a different fd which + also means a different handle by replicating the logic in + "Py_lifecycle.c:initstdio/create_stdio". + + :param stream: + In practice ``sys.stdout`` or ``sys.stderr``, but given + here as parameter for unittesting purposes. + + See https://github.com/pytest-dev/py/issues/103. + """ + if not sys.platform.startswith("win32") or hasattr(sys, "pypy_version_info"): + return + + # Bail out if ``stream`` doesn't seem like a proper ``io`` stream (#2666). + if not hasattr(stream, "buffer"): # type: ignore[unreachable] + return + + buffered = hasattr(stream.buffer, "raw") + raw_stdout = stream.buffer.raw if buffered else stream.buffer # type: ignore[attr-defined] + + if not isinstance(raw_stdout, io._WindowsConsoleIO): # type: ignore[attr-defined] + return + + def _reopen_stdio(f, mode): + if not buffered and mode[0] == "w": + buffering = 0 + else: + buffering = -1 + + return io.TextIOWrapper( + open(os.dup(f.fileno()), mode, buffering), + f.encoding, + f.errors, + f.newlines, + f.line_buffering, + ) + + sys.stdin = _reopen_stdio(sys.stdin, "rb") + sys.stdout = _reopen_stdio(sys.stdout, "wb") + sys.stderr = _reopen_stdio(sys.stderr, "wb") + + +@hookimpl(hookwrapper=True) +def pytest_load_initial_conftests(early_config: Config): + ns = early_config.known_args_namespace + if ns.capture == "fd": + _windowsconsoleio_workaround(sys.stdout) + _colorama_workaround() + pluginmanager = early_config.pluginmanager + capman = CaptureManager(ns.capture) + pluginmanager.register(capman, "capturemanager") + + # Make sure that capturemanager is properly reset at final shutdown. + early_config.add_cleanup(capman.stop_global_capturing) + + # Finally trigger conftest loading but while capturing (issue #93). + capman.start_global_capturing() + outcome = yield + capman.suspend_global_capture() + if outcome.excinfo is not None: + out, err = capman.read_global_capture() + sys.stdout.write(out) + sys.stderr.write(err) + + +# IO Helpers. + + +class EncodedFile(io.TextIOWrapper): + __slots__ = () + + @property + def name(self) -> str: + # Ensure that file.name is a string. Workaround for a Python bug + # fixed in >=3.7.4: https://bugs.python.org/issue36015 + return repr(self.buffer) + + @property + def mode(self) -> str: + # TextIOWrapper doesn't expose a mode, but at least some of our + # tests check it. + return self.buffer.mode.replace("b", "") + + +class CaptureIO(io.TextIOWrapper): + def __init__(self) -> None: + super().__init__(io.BytesIO(), encoding="UTF-8", newline="", write_through=True) + + def getvalue(self) -> str: + assert isinstance(self.buffer, io.BytesIO) + return self.buffer.getvalue().decode("UTF-8") + + +class TeeCaptureIO(CaptureIO): + def __init__(self, other: TextIO) -> None: + self._other = other + super().__init__() + + def write(self, s: str) -> int: + super().write(s) + return self._other.write(s) + + +class DontReadFromInput: + encoding = None + + def read(self, *args): + raise OSError( + "pytest: reading from stdin while output is captured! Consider using `-s`." + ) + + readline = read + readlines = read + __next__ = read + + def __iter__(self): + return self + + def fileno(self) -> int: + raise UnsupportedOperation("redirected stdin is pseudofile, has no fileno()") + + def flush(self) -> None: + raise UnsupportedOperation("redirected stdin is pseudofile, has no flush()") + + def isatty(self) -> bool: + return False + + def close(self) -> None: + pass + + def readable(self) -> bool: + return False + + def seek(self, offset: int) -> int: + raise UnsupportedOperation("redirected stdin is pseudofile, has no seek(int)") + + def seekable(self) -> bool: + return False + + def tell(self) -> int: + raise UnsupportedOperation("redirected stdin is pseudofile, has no tell()") + + def truncate(self, size: int) -> None: + raise UnsupportedOperation("cannont truncate stdin") + + def write(self, *args) -> None: + raise UnsupportedOperation("cannot write to stdin") + + def writelines(self, *args) -> None: + raise UnsupportedOperation("Cannot write to stdin") + + def writable(self) -> bool: + return False + + @property + def buffer(self): + return self + + +# Capture classes. + + +patchsysdict = {0: "stdin", 1: "stdout", 2: "stderr"} + + +class NoCapture: + EMPTY_BUFFER = None + __init__ = start = done = suspend = resume = lambda *args: None + + +class SysCaptureBinary: + + EMPTY_BUFFER = b"" + + def __init__(self, fd: int, tmpfile=None, *, tee: bool = False) -> None: + name = patchsysdict[fd] + self._old = getattr(sys, name) + self.name = name + if tmpfile is None: + if name == "stdin": + tmpfile = DontReadFromInput() + else: + tmpfile = CaptureIO() if not tee else TeeCaptureIO(self._old) + self.tmpfile = tmpfile + self._state = "initialized" + + def repr(self, class_name: str) -> str: + return "<{} {} _old={} _state={!r} tmpfile={!r}>".format( + class_name, + self.name, + hasattr(self, "_old") and repr(self._old) or "", + self._state, + self.tmpfile, + ) + + def __repr__(self) -> str: + return "<{} {} _old={} _state={!r} tmpfile={!r}>".format( + self.__class__.__name__, + self.name, + hasattr(self, "_old") and repr(self._old) or "", + self._state, + self.tmpfile, + ) + + def _assert_state(self, op: str, states: Tuple[str, ...]) -> None: + assert ( + self._state in states + ), "cannot {} in state {!r}: expected one of {}".format( + op, self._state, ", ".join(states) + ) + + def start(self) -> None: + self._assert_state("start", ("initialized",)) + setattr(sys, self.name, self.tmpfile) + self._state = "started" + + def snap(self): + self._assert_state("snap", ("started", "suspended")) + self.tmpfile.seek(0) + res = self.tmpfile.buffer.read() + self.tmpfile.seek(0) + self.tmpfile.truncate() + return res + + def done(self) -> None: + self._assert_state("done", ("initialized", "started", "suspended", "done")) + if self._state == "done": + return + setattr(sys, self.name, self._old) + del self._old + self.tmpfile.close() + self._state = "done" + + def suspend(self) -> None: + self._assert_state("suspend", ("started", "suspended")) + setattr(sys, self.name, self._old) + self._state = "suspended" + + def resume(self) -> None: + self._assert_state("resume", ("started", "suspended")) + if self._state == "started": + return + setattr(sys, self.name, self.tmpfile) + self._state = "started" + + def writeorg(self, data) -> None: + self._assert_state("writeorg", ("started", "suspended")) + self._old.flush() + self._old.buffer.write(data) + self._old.buffer.flush() + + +class SysCapture(SysCaptureBinary): + EMPTY_BUFFER = "" # type: ignore[assignment] + + def snap(self): + res = self.tmpfile.getvalue() + self.tmpfile.seek(0) + self.tmpfile.truncate() + return res + + def writeorg(self, data): + self._assert_state("writeorg", ("started", "suspended")) + self._old.write(data) + self._old.flush() + + +class FDCaptureBinary: + """Capture IO to/from a given OS-level file descriptor. + + snap() produces `bytes`. + """ + + EMPTY_BUFFER = b"" + + def __init__(self, targetfd: int) -> None: + self.targetfd = targetfd + + try: + os.fstat(targetfd) + except OSError: + # FD capturing is conceptually simple -- create a temporary file, + # redirect the FD to it, redirect back when done. But when the + # target FD is invalid it throws a wrench into this lovely scheme. + # + # Tests themselves shouldn't care if the FD is valid, FD capturing + # should work regardless of external circumstances. So falling back + # to just sys capturing is not a good option. + # + # Further complications are the need to support suspend() and the + # possibility of FD reuse (e.g. the tmpfile getting the very same + # target FD). The following approach is robust, I believe. + self.targetfd_invalid: Optional[int] = os.open(os.devnull, os.O_RDWR) + os.dup2(self.targetfd_invalid, targetfd) + else: + self.targetfd_invalid = None + self.targetfd_save = os.dup(targetfd) + + if targetfd == 0: + self.tmpfile = open(os.devnull, encoding="utf-8") + self.syscapture = SysCapture(targetfd) + else: + self.tmpfile = EncodedFile( + TemporaryFile(buffering=0), + encoding="utf-8", + errors="replace", + newline="", + write_through=True, + ) + if targetfd in patchsysdict: + self.syscapture = SysCapture(targetfd, self.tmpfile) + else: + self.syscapture = NoCapture() + + self._state = "initialized" + + def __repr__(self) -> str: + return "<{} {} oldfd={} _state={!r} tmpfile={!r}>".format( + self.__class__.__name__, + self.targetfd, + self.targetfd_save, + self._state, + self.tmpfile, + ) + + def _assert_state(self, op: str, states: Tuple[str, ...]) -> None: + assert ( + self._state in states + ), "cannot {} in state {!r}: expected one of {}".format( + op, self._state, ", ".join(states) + ) + + def start(self) -> None: + """Start capturing on targetfd using memorized tmpfile.""" + self._assert_state("start", ("initialized",)) + os.dup2(self.tmpfile.fileno(), self.targetfd) + self.syscapture.start() + self._state = "started" + + def snap(self): + self._assert_state("snap", ("started", "suspended")) + self.tmpfile.seek(0) + res = self.tmpfile.buffer.read() + self.tmpfile.seek(0) + self.tmpfile.truncate() + return res + + def done(self) -> None: + """Stop capturing, restore streams, return original capture file, + seeked to position zero.""" + self._assert_state("done", ("initialized", "started", "suspended", "done")) + if self._state == "done": + return + os.dup2(self.targetfd_save, self.targetfd) + os.close(self.targetfd_save) + if self.targetfd_invalid is not None: + if self.targetfd_invalid != self.targetfd: + os.close(self.targetfd) + os.close(self.targetfd_invalid) + self.syscapture.done() + self.tmpfile.close() + self._state = "done" + + def suspend(self) -> None: + self._assert_state("suspend", ("started", "suspended")) + if self._state == "suspended": + return + self.syscapture.suspend() + os.dup2(self.targetfd_save, self.targetfd) + self._state = "suspended" + + def resume(self) -> None: + self._assert_state("resume", ("started", "suspended")) + if self._state == "started": + return + self.syscapture.resume() + os.dup2(self.tmpfile.fileno(), self.targetfd) + self._state = "started" + + def writeorg(self, data): + """Write to original file descriptor.""" + self._assert_state("writeorg", ("started", "suspended")) + os.write(self.targetfd_save, data) + + +class FDCapture(FDCaptureBinary): + """Capture IO to/from a given OS-level file descriptor. + + snap() produces text. + """ + + # Ignore type because it doesn't match the type in the superclass (bytes). + EMPTY_BUFFER = "" # type: ignore + + def snap(self): + self._assert_state("snap", ("started", "suspended")) + self.tmpfile.seek(0) + res = self.tmpfile.read() + self.tmpfile.seek(0) + self.tmpfile.truncate() + return res + + def writeorg(self, data): + """Write to original file descriptor.""" + super().writeorg(data.encode("utf-8")) # XXX use encoding of original stream + + +# MultiCapture + + +# This class was a namedtuple, but due to mypy limitation[0] it could not be +# made generic, so was replaced by a regular class which tries to emulate the +# pertinent parts of a namedtuple. If the mypy limitation is ever lifted, can +# make it a namedtuple again. +# [0]: https://github.com/python/mypy/issues/685 +@final +@functools.total_ordering +class CaptureResult(Generic[AnyStr]): + """The result of :method:`CaptureFixture.readouterr`.""" + + __slots__ = ("out", "err") + + def __init__(self, out: AnyStr, err: AnyStr) -> None: + self.out: AnyStr = out + self.err: AnyStr = err + + def __len__(self) -> int: + return 2 + + def __iter__(self) -> Iterator[AnyStr]: + return iter((self.out, self.err)) + + def __getitem__(self, item: int) -> AnyStr: + return tuple(self)[item] + + def _replace( + self, *, out: Optional[AnyStr] = None, err: Optional[AnyStr] = None + ) -> "CaptureResult[AnyStr]": + return CaptureResult( + out=self.out if out is None else out, err=self.err if err is None else err + ) + + def count(self, value: AnyStr) -> int: + return tuple(self).count(value) + + def index(self, value) -> int: + return tuple(self).index(value) + + def __eq__(self, other: object) -> bool: + if not isinstance(other, (CaptureResult, tuple)): + return NotImplemented + return tuple(self) == tuple(other) + + def __hash__(self) -> int: + return hash(tuple(self)) + + def __lt__(self, other: object) -> bool: + if not isinstance(other, (CaptureResult, tuple)): + return NotImplemented + return tuple(self) < tuple(other) + + def __repr__(self) -> str: + return f"CaptureResult(out={self.out!r}, err={self.err!r})" + + +class MultiCapture(Generic[AnyStr]): + _state = None + _in_suspended = False + + def __init__(self, in_, out, err) -> None: + self.in_ = in_ + self.out = out + self.err = err + + def __repr__(self) -> str: + return "".format( + self.out, + self.err, + self.in_, + self._state, + self._in_suspended, + ) + + def start_capturing(self) -> None: + self._state = "started" + if self.in_: + self.in_.start() + if self.out: + self.out.start() + if self.err: + self.err.start() + + def pop_outerr_to_orig(self) -> Tuple[AnyStr, AnyStr]: + """Pop current snapshot out/err capture and flush to orig streams.""" + out, err = self.readouterr() + if out: + self.out.writeorg(out) + if err: + self.err.writeorg(err) + return out, err + + def suspend_capturing(self, in_: bool = False) -> None: + self._state = "suspended" + if self.out: + self.out.suspend() + if self.err: + self.err.suspend() + if in_ and self.in_: + self.in_.suspend() + self._in_suspended = True + + def resume_capturing(self) -> None: + self._state = "started" + if self.out: + self.out.resume() + if self.err: + self.err.resume() + if self._in_suspended: + self.in_.resume() + self._in_suspended = False + + def stop_capturing(self) -> None: + """Stop capturing and reset capturing streams.""" + if self._state == "stopped": + raise ValueError("was already stopped") + self._state = "stopped" + if self.out: + self.out.done() + if self.err: + self.err.done() + if self.in_: + self.in_.done() + + def is_started(self) -> bool: + """Whether actively capturing -- not suspended or stopped.""" + return self._state == "started" + + def readouterr(self) -> CaptureResult[AnyStr]: + out = self.out.snap() if self.out else "" + err = self.err.snap() if self.err else "" + return CaptureResult(out, err) + + +def _get_multicapture(method: "_CaptureMethod") -> MultiCapture[str]: + if method == "fd": + return MultiCapture(in_=FDCapture(0), out=FDCapture(1), err=FDCapture(2)) + elif method == "sys": + return MultiCapture(in_=SysCapture(0), out=SysCapture(1), err=SysCapture(2)) + elif method == "no": + return MultiCapture(in_=None, out=None, err=None) + elif method == "tee-sys": + return MultiCapture( + in_=None, out=SysCapture(1, tee=True), err=SysCapture(2, tee=True) + ) + raise ValueError(f"unknown capturing method: {method!r}") + + +# CaptureManager and CaptureFixture + + +class CaptureManager: + """The capture plugin. + + Manages that the appropriate capture method is enabled/disabled during + collection and each test phase (setup, call, teardown). After each of + those points, the captured output is obtained and attached to the + collection/runtest report. + + There are two levels of capture: + + * global: enabled by default and can be suppressed by the ``-s`` + option. This is always enabled/disabled during collection and each test + phase. + + * fixture: when a test function or one of its fixture depend on the + ``capsys`` or ``capfd`` fixtures. In this case special handling is + needed to ensure the fixtures take precedence over the global capture. + """ + + def __init__(self, method: "_CaptureMethod") -> None: + self._method = method + self._global_capturing: Optional[MultiCapture[str]] = None + self._capture_fixture: Optional[CaptureFixture[Any]] = None + + def __repr__(self) -> str: + return "".format( + self._method, self._global_capturing, self._capture_fixture + ) + + def is_capturing(self) -> Union[str, bool]: + if self.is_globally_capturing(): + return "global" + if self._capture_fixture: + return "fixture %s" % self._capture_fixture.request.fixturename + return False + + # Global capturing control + + def is_globally_capturing(self) -> bool: + return self._method != "no" + + def start_global_capturing(self) -> None: + assert self._global_capturing is None + self._global_capturing = _get_multicapture(self._method) + self._global_capturing.start_capturing() + + def stop_global_capturing(self) -> None: + if self._global_capturing is not None: + self._global_capturing.pop_outerr_to_orig() + self._global_capturing.stop_capturing() + self._global_capturing = None + + def resume_global_capture(self) -> None: + # During teardown of the python process, and on rare occasions, capture + # attributes can be `None` while trying to resume global capture. + if self._global_capturing is not None: + self._global_capturing.resume_capturing() + + def suspend_global_capture(self, in_: bool = False) -> None: + if self._global_capturing is not None: + self._global_capturing.suspend_capturing(in_=in_) + + def suspend(self, in_: bool = False) -> None: + # Need to undo local capsys-et-al if it exists before disabling global capture. + self.suspend_fixture() + self.suspend_global_capture(in_) + + def resume(self) -> None: + self.resume_global_capture() + self.resume_fixture() + + def read_global_capture(self) -> CaptureResult[str]: + assert self._global_capturing is not None + return self._global_capturing.readouterr() + + # Fixture Control + + def set_fixture(self, capture_fixture: "CaptureFixture[Any]") -> None: + if self._capture_fixture: + current_fixture = self._capture_fixture.request.fixturename + requested_fixture = capture_fixture.request.fixturename + capture_fixture.request.raiseerror( + "cannot use {} and {} at the same time".format( + requested_fixture, current_fixture + ) + ) + self._capture_fixture = capture_fixture + + def unset_fixture(self) -> None: + self._capture_fixture = None + + def activate_fixture(self) -> None: + """If the current item is using ``capsys`` or ``capfd``, activate + them so they take precedence over the global capture.""" + if self._capture_fixture: + self._capture_fixture._start() + + def deactivate_fixture(self) -> None: + """Deactivate the ``capsys`` or ``capfd`` fixture of this item, if any.""" + if self._capture_fixture: + self._capture_fixture.close() + + def suspend_fixture(self) -> None: + if self._capture_fixture: + self._capture_fixture._suspend() + + def resume_fixture(self) -> None: + if self._capture_fixture: + self._capture_fixture._resume() + + # Helper context managers + + @contextlib.contextmanager + def global_and_fixture_disabled(self) -> Generator[None, None, None]: + """Context manager to temporarily disable global and current fixture capturing.""" + do_fixture = self._capture_fixture and self._capture_fixture._is_started() + if do_fixture: + self.suspend_fixture() + do_global = self._global_capturing and self._global_capturing.is_started() + if do_global: + self.suspend_global_capture() + try: + yield + finally: + if do_global: + self.resume_global_capture() + if do_fixture: + self.resume_fixture() + + @contextlib.contextmanager + def item_capture(self, when: str, item: Item) -> Generator[None, None, None]: + self.resume_global_capture() + self.activate_fixture() + try: + yield + finally: + self.deactivate_fixture() + self.suspend_global_capture(in_=False) + + out, err = self.read_global_capture() + item.add_report_section(when, "stdout", out) + item.add_report_section(when, "stderr", err) + + # Hooks + + @hookimpl(hookwrapper=True) + def pytest_make_collect_report(self, collector: Collector): + if isinstance(collector, File): + self.resume_global_capture() + outcome = yield + self.suspend_global_capture() + out, err = self.read_global_capture() + rep = outcome.get_result() + if out: + rep.sections.append(("Captured stdout", out)) + if err: + rep.sections.append(("Captured stderr", err)) + else: + yield + + @hookimpl(hookwrapper=True) + def pytest_runtest_setup(self, item: Item) -> Generator[None, None, None]: + with self.item_capture("setup", item): + yield + + @hookimpl(hookwrapper=True) + def pytest_runtest_call(self, item: Item) -> Generator[None, None, None]: + with self.item_capture("call", item): + yield + + @hookimpl(hookwrapper=True) + def pytest_runtest_teardown(self, item: Item) -> Generator[None, None, None]: + with self.item_capture("teardown", item): + yield + + @hookimpl(tryfirst=True) + def pytest_keyboard_interrupt(self) -> None: + self.stop_global_capturing() + + @hookimpl(tryfirst=True) + def pytest_internalerror(self) -> None: + self.stop_global_capturing() + + +class CaptureFixture(Generic[AnyStr]): + """Object returned by the :fixture:`capsys`, :fixture:`capsysbinary`, + :fixture:`capfd` and :fixture:`capfdbinary` fixtures.""" + + def __init__( + self, captureclass, request: SubRequest, *, _ispytest: bool = False + ) -> None: + check_ispytest(_ispytest) + self.captureclass = captureclass + self.request = request + self._capture: Optional[MultiCapture[AnyStr]] = None + self._captured_out = self.captureclass.EMPTY_BUFFER + self._captured_err = self.captureclass.EMPTY_BUFFER + + def _start(self) -> None: + if self._capture is None: + self._capture = MultiCapture( + in_=None, + out=self.captureclass(1), + err=self.captureclass(2), + ) + self._capture.start_capturing() + + def close(self) -> None: + if self._capture is not None: + out, err = self._capture.pop_outerr_to_orig() + self._captured_out += out + self._captured_err += err + self._capture.stop_capturing() + self._capture = None + + def readouterr(self) -> CaptureResult[AnyStr]: + """Read and return the captured output so far, resetting the internal + buffer. + + :returns: + The captured content as a namedtuple with ``out`` and ``err`` + string attributes. + """ + captured_out, captured_err = self._captured_out, self._captured_err + if self._capture is not None: + out, err = self._capture.readouterr() + captured_out += out + captured_err += err + self._captured_out = self.captureclass.EMPTY_BUFFER + self._captured_err = self.captureclass.EMPTY_BUFFER + return CaptureResult(captured_out, captured_err) + + def _suspend(self) -> None: + """Suspend this fixture's own capturing temporarily.""" + if self._capture is not None: + self._capture.suspend_capturing() + + def _resume(self) -> None: + """Resume this fixture's own capturing temporarily.""" + if self._capture is not None: + self._capture.resume_capturing() + + def _is_started(self) -> bool: + """Whether actively capturing -- not disabled or closed.""" + if self._capture is not None: + return self._capture.is_started() + return False + + @contextlib.contextmanager + def disabled(self) -> Generator[None, None, None]: + """Temporarily disable capturing while inside the ``with`` block.""" + capmanager = self.request.config.pluginmanager.getplugin("capturemanager") + with capmanager.global_and_fixture_disabled(): + yield + + +# The fixtures. + + +@fixture +def capsys(request: SubRequest) -> Generator[CaptureFixture[str], None, None]: + r"""Enable text capturing of writes to ``sys.stdout`` and ``sys.stderr``. + + The captured output is made available via ``capsys.readouterr()`` method + calls, which return a ``(out, err)`` namedtuple. + ``out`` and ``err`` will be ``text`` objects. + + Returns an instance of :class:`CaptureFixture[str] `. + + Example: + + .. code-block:: python + + def test_output(capsys): + print("hello") + captured = capsys.readouterr() + assert captured.out == "hello\n" + """ + capman = request.config.pluginmanager.getplugin("capturemanager") + capture_fixture = CaptureFixture[str](SysCapture, request, _ispytest=True) + capman.set_fixture(capture_fixture) + capture_fixture._start() + yield capture_fixture + capture_fixture.close() + capman.unset_fixture() + + +@fixture +def capsysbinary(request: SubRequest) -> Generator[CaptureFixture[bytes], None, None]: + r"""Enable bytes capturing of writes to ``sys.stdout`` and ``sys.stderr``. + + The captured output is made available via ``capsysbinary.readouterr()`` + method calls, which return a ``(out, err)`` namedtuple. + ``out`` and ``err`` will be ``bytes`` objects. + + Returns an instance of :class:`CaptureFixture[bytes] `. + + Example: + + .. code-block:: python + + def test_output(capsysbinary): + print("hello") + captured = capsysbinary.readouterr() + assert captured.out == b"hello\n" + """ + capman = request.config.pluginmanager.getplugin("capturemanager") + capture_fixture = CaptureFixture[bytes](SysCaptureBinary, request, _ispytest=True) + capman.set_fixture(capture_fixture) + capture_fixture._start() + yield capture_fixture + capture_fixture.close() + capman.unset_fixture() + + +@fixture +def capfd(request: SubRequest) -> Generator[CaptureFixture[str], None, None]: + r"""Enable text capturing of writes to file descriptors ``1`` and ``2``. + + The captured output is made available via ``capfd.readouterr()`` method + calls, which return a ``(out, err)`` namedtuple. + ``out`` and ``err`` will be ``text`` objects. + + Returns an instance of :class:`CaptureFixture[str] `. + + Example: + + .. code-block:: python + + def test_system_echo(capfd): + os.system('echo "hello"') + captured = capfd.readouterr() + assert captured.out == "hello\n" + """ + capman = request.config.pluginmanager.getplugin("capturemanager") + capture_fixture = CaptureFixture[str](FDCapture, request, _ispytest=True) + capman.set_fixture(capture_fixture) + capture_fixture._start() + yield capture_fixture + capture_fixture.close() + capman.unset_fixture() + + +@fixture +def capfdbinary(request: SubRequest) -> Generator[CaptureFixture[bytes], None, None]: + r"""Enable bytes capturing of writes to file descriptors ``1`` and ``2``. + + The captured output is made available via ``capfd.readouterr()`` method + calls, which return a ``(out, err)`` namedtuple. + ``out`` and ``err`` will be ``byte`` objects. + + Returns an instance of :class:`CaptureFixture[bytes] `. + + Example: + + .. code-block:: python + + def test_system_echo(capfdbinary): + os.system('echo "hello"') + captured = capfdbinary.readouterr() + assert captured.out == b"hello\n" + + """ + capman = request.config.pluginmanager.getplugin("capturemanager") + capture_fixture = CaptureFixture[bytes](FDCaptureBinary, request, _ispytest=True) + capman.set_fixture(capture_fixture) + capture_fixture._start() + yield capture_fixture + capture_fixture.close() + capman.unset_fixture() diff --git a/utils/python-venv/Lib/site-packages/_pytest/compat.py b/utils/python-venv/Lib/site-packages/_pytest/compat.py new file mode 100644 index 0000000..211407b --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/compat.py @@ -0,0 +1,417 @@ +"""Python version compatibility code.""" +import enum +import functools +import inspect +import os +import sys +from inspect import Parameter +from inspect import signature +from pathlib import Path +from typing import Any +from typing import Callable +from typing import Generic +from typing import NoReturn +from typing import Optional +from typing import Tuple +from typing import TYPE_CHECKING +from typing import TypeVar +from typing import Union + +import attr + +import py + +# fmt: off +# Workaround for https://github.com/sphinx-doc/sphinx/issues/10351. +# If `overload` is imported from `compat` instead of from `typing`, +# Sphinx doesn't recognize it as `overload` and the API docs for +# overloaded functions look good again. But type checkers handle +# it fine. +# fmt: on +if True: + from typing import overload as overload + +if TYPE_CHECKING: + from typing_extensions import Final + + +_T = TypeVar("_T") +_S = TypeVar("_S") + +#: constant to prepare valuing pylib path replacements/lazy proxies later on +# intended for removal in pytest 8.0 or 9.0 + +# fmt: off +# intentional space to create a fake difference for the verification +LEGACY_PATH = py.path. local +# fmt: on + + +def legacy_path(path: Union[str, "os.PathLike[str]"]) -> LEGACY_PATH: + """Internal wrapper to prepare lazy proxies for legacy_path instances""" + return LEGACY_PATH(path) + + +# fmt: off +# Singleton type for NOTSET, as described in: +# https://www.python.org/dev/peps/pep-0484/#support-for-singleton-types-in-unions +class NotSetType(enum.Enum): + token = 0 +NOTSET: "Final" = NotSetType.token # noqa: E305 +# fmt: on + +if sys.version_info >= (3, 8): + import importlib.metadata + + importlib_metadata = importlib.metadata +else: + import importlib_metadata as importlib_metadata # noqa: F401 + + +def _format_args(func: Callable[..., Any]) -> str: + return str(signature(func)) + + +def is_generator(func: object) -> bool: + genfunc = inspect.isgeneratorfunction(func) + return genfunc and not iscoroutinefunction(func) + + +def iscoroutinefunction(func: object) -> bool: + """Return True if func is a coroutine function (a function defined with async + def syntax, and doesn't contain yield), or a function decorated with + @asyncio.coroutine. + + Note: copied and modified from Python 3.5's builtin couroutines.py to avoid + importing asyncio directly, which in turns also initializes the "logging" + module as a side-effect (see issue #8). + """ + return inspect.iscoroutinefunction(func) or getattr(func, "_is_coroutine", False) + + +def is_async_function(func: object) -> bool: + """Return True if the given function seems to be an async function or + an async generator.""" + return iscoroutinefunction(func) or inspect.isasyncgenfunction(func) + + +def getlocation(function, curdir: Optional[str] = None) -> str: + function = get_real_func(function) + fn = Path(inspect.getfile(function)) + lineno = function.__code__.co_firstlineno + if curdir is not None: + try: + relfn = fn.relative_to(curdir) + except ValueError: + pass + else: + return "%s:%d" % (relfn, lineno + 1) + return "%s:%d" % (fn, lineno + 1) + + +def num_mock_patch_args(function) -> int: + """Return number of arguments used up by mock arguments (if any).""" + patchings = getattr(function, "patchings", None) + if not patchings: + return 0 + + mock_sentinel = getattr(sys.modules.get("mock"), "DEFAULT", object()) + ut_mock_sentinel = getattr(sys.modules.get("unittest.mock"), "DEFAULT", object()) + + return len( + [ + p + for p in patchings + if not p.attribute_name + and (p.new is mock_sentinel or p.new is ut_mock_sentinel) + ] + ) + + +def getfuncargnames( + function: Callable[..., Any], + *, + name: str = "", + is_method: bool = False, + cls: Optional[type] = None, +) -> Tuple[str, ...]: + """Return the names of a function's mandatory arguments. + + Should return the names of all function arguments that: + * Aren't bound to an instance or type as in instance or class methods. + * Don't have default values. + * Aren't bound with functools.partial. + * Aren't replaced with mocks. + + The is_method and cls arguments indicate that the function should + be treated as a bound method even though it's not unless, only in + the case of cls, the function is a static method. + + The name parameter should be the original name in which the function was collected. + """ + # TODO(RonnyPfannschmidt): This function should be refactored when we + # revisit fixtures. The fixture mechanism should ask the node for + # the fixture names, and not try to obtain directly from the + # function object well after collection has occurred. + + # The parameters attribute of a Signature object contains an + # ordered mapping of parameter names to Parameter instances. This + # creates a tuple of the names of the parameters that don't have + # defaults. + try: + parameters = signature(function).parameters + except (ValueError, TypeError) as e: + from _pytest.outcomes import fail + + fail( + f"Could not determine arguments of {function!r}: {e}", + pytrace=False, + ) + + arg_names = tuple( + p.name + for p in parameters.values() + if ( + p.kind is Parameter.POSITIONAL_OR_KEYWORD + or p.kind is Parameter.KEYWORD_ONLY + ) + and p.default is Parameter.empty + ) + if not name: + name = function.__name__ + + # If this function should be treated as a bound method even though + # it's passed as an unbound method or function, remove the first + # parameter name. + if is_method or ( + # Not using `getattr` because we don't want to resolve the staticmethod. + # Not using `cls.__dict__` because we want to check the entire MRO. + cls + and not isinstance( + inspect.getattr_static(cls, name, default=None), staticmethod + ) + ): + arg_names = arg_names[1:] + # Remove any names that will be replaced with mocks. + if hasattr(function, "__wrapped__"): + arg_names = arg_names[num_mock_patch_args(function) :] + return arg_names + + +def get_default_arg_names(function: Callable[..., Any]) -> Tuple[str, ...]: + # Note: this code intentionally mirrors the code at the beginning of + # getfuncargnames, to get the arguments which were excluded from its result + # because they had default values. + return tuple( + p.name + for p in signature(function).parameters.values() + if p.kind in (Parameter.POSITIONAL_OR_KEYWORD, Parameter.KEYWORD_ONLY) + and p.default is not Parameter.empty + ) + + +_non_printable_ascii_translate_table = { + i: f"\\x{i:02x}" for i in range(128) if i not in range(32, 127) +} +_non_printable_ascii_translate_table.update( + {ord("\t"): "\\t", ord("\r"): "\\r", ord("\n"): "\\n"} +) + + +def _translate_non_printable(s: str) -> str: + return s.translate(_non_printable_ascii_translate_table) + + +STRING_TYPES = bytes, str + + +def _bytes_to_ascii(val: bytes) -> str: + return val.decode("ascii", "backslashreplace") + + +def ascii_escaped(val: Union[bytes, str]) -> str: + r"""If val is pure ASCII, return it as an str, otherwise, escape + bytes objects into a sequence of escaped bytes: + + b'\xc3\xb4\xc5\xd6' -> r'\xc3\xb4\xc5\xd6' + + and escapes unicode objects into a sequence of escaped unicode + ids, e.g.: + + r'4\nV\U00043efa\x0eMXWB\x1e\u3028\u15fd\xcd\U0007d944' + + Note: + The obvious "v.decode('unicode-escape')" will return + valid UTF-8 unicode if it finds them in bytes, but we + want to return escaped bytes for any byte, even if they match + a UTF-8 string. + """ + if isinstance(val, bytes): + ret = _bytes_to_ascii(val) + else: + ret = val.encode("unicode_escape").decode("ascii") + return _translate_non_printable(ret) + + +@attr.s +class _PytestWrapper: + """Dummy wrapper around a function object for internal use only. + + Used to correctly unwrap the underlying function object when we are + creating fixtures, because we wrap the function object ourselves with a + decorator to issue warnings when the fixture function is called directly. + """ + + obj = attr.ib() + + +def get_real_func(obj): + """Get the real function object of the (possibly) wrapped object by + functools.wraps or functools.partial.""" + start_obj = obj + for i in range(100): + # __pytest_wrapped__ is set by @pytest.fixture when wrapping the fixture function + # to trigger a warning if it gets called directly instead of by pytest: we don't + # want to unwrap further than this otherwise we lose useful wrappings like @mock.patch (#3774) + new_obj = getattr(obj, "__pytest_wrapped__", None) + if isinstance(new_obj, _PytestWrapper): + obj = new_obj.obj + break + new_obj = getattr(obj, "__wrapped__", None) + if new_obj is None: + break + obj = new_obj + else: + from _pytest._io.saferepr import saferepr + + raise ValueError( + ("could not find real function of {start}\nstopped at {current}").format( + start=saferepr(start_obj), current=saferepr(obj) + ) + ) + if isinstance(obj, functools.partial): + obj = obj.func + return obj + + +def get_real_method(obj, holder): + """Attempt to obtain the real function object that might be wrapping + ``obj``, while at the same time returning a bound method to ``holder`` if + the original object was a bound method.""" + try: + is_method = hasattr(obj, "__func__") + obj = get_real_func(obj) + except Exception: # pragma: no cover + return obj + if is_method and hasattr(obj, "__get__") and callable(obj.__get__): + obj = obj.__get__(holder) + return obj + + +def getimfunc(func): + try: + return func.__func__ + except AttributeError: + return func + + +def safe_getattr(object: Any, name: str, default: Any) -> Any: + """Like getattr but return default upon any Exception or any OutcomeException. + + Attribute access can potentially fail for 'evil' Python objects. + See issue #214. + It catches OutcomeException because of #2490 (issue #580), new outcomes + are derived from BaseException instead of Exception (for more details + check #2707). + """ + from _pytest.outcomes import TEST_OUTCOME + + try: + return getattr(object, name, default) + except TEST_OUTCOME: + return default + + +def safe_isclass(obj: object) -> bool: + """Ignore any exception via isinstance on Python 3.""" + try: + return inspect.isclass(obj) + except Exception: + return False + + +if TYPE_CHECKING: + if sys.version_info >= (3, 8): + from typing import final as final + else: + from typing_extensions import final as final +elif sys.version_info >= (3, 8): + from typing import final as final +else: + + def final(f): + return f + + +if sys.version_info >= (3, 8): + from functools import cached_property as cached_property +else: + from typing import Type + + class cached_property(Generic[_S, _T]): + __slots__ = ("func", "__doc__") + + def __init__(self, func: Callable[[_S], _T]) -> None: + self.func = func + self.__doc__ = func.__doc__ + + @overload + def __get__( + self, instance: None, owner: Optional[Type[_S]] = ... + ) -> "cached_property[_S, _T]": + ... + + @overload + def __get__(self, instance: _S, owner: Optional[Type[_S]] = ...) -> _T: + ... + + def __get__(self, instance, owner=None): + if instance is None: + return self + value = instance.__dict__[self.func.__name__] = self.func(instance) + return value + + +# Perform exhaustiveness checking. +# +# Consider this example: +# +# MyUnion = Union[int, str] +# +# def handle(x: MyUnion) -> int { +# if isinstance(x, int): +# return 1 +# elif isinstance(x, str): +# return 2 +# else: +# raise Exception('unreachable') +# +# Now suppose we add a new variant: +# +# MyUnion = Union[int, str, bytes] +# +# After doing this, we must remember ourselves to go and update the handle +# function to handle the new variant. +# +# With `assert_never` we can do better: +# +# // raise Exception('unreachable') +# return assert_never(x) +# +# Now, if we forget to handle the new variant, the type-checker will emit a +# compile-time error, instead of the runtime error we would have gotten +# previously. +# +# This also work for Enums (if you use `is` to compare) and Literals. +def assert_never(value: NoReturn) -> NoReturn: + assert False, f"Unhandled value: {value} ({type(value).__name__})" diff --git a/utils/python-venv/Lib/site-packages/_pytest/config/__init__.py b/utils/python-venv/Lib/site-packages/_pytest/config/__init__.py new file mode 100644 index 0000000..25f156f --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/config/__init__.py @@ -0,0 +1,1745 @@ +"""Command line options, ini-file and conftest.py processing.""" +import argparse +import collections.abc +import copy +import enum +import glob +import inspect +import os +import re +import shlex +import sys +import types +import warnings +from functools import lru_cache +from pathlib import Path +from textwrap import dedent +from types import FunctionType +from types import TracebackType +from typing import Any +from typing import Callable +from typing import cast +from typing import Dict +from typing import Generator +from typing import IO +from typing import Iterable +from typing import Iterator +from typing import List +from typing import Optional +from typing import Sequence +from typing import Set +from typing import TextIO +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import Union + +import attr +from pluggy import HookimplMarker +from pluggy import HookspecMarker +from pluggy import PluginManager + +import _pytest._code +import _pytest.deprecated +import _pytest.hookspec +from .exceptions import PrintHelp as PrintHelp +from .exceptions import UsageError as UsageError +from .findpaths import determine_setup +from _pytest._code import ExceptionInfo +from _pytest._code import filter_traceback +from _pytest._io import TerminalWriter +from _pytest.compat import final +from _pytest.compat import importlib_metadata +from _pytest.outcomes import fail +from _pytest.outcomes import Skipped +from _pytest.pathlib import absolutepath +from _pytest.pathlib import bestrelpath +from _pytest.pathlib import import_path +from _pytest.pathlib import ImportMode +from _pytest.pathlib import resolve_package_path +from _pytest.stash import Stash +from _pytest.warning_types import PytestConfigWarning +from _pytest.warning_types import warn_explicit_for + +if TYPE_CHECKING: + + from _pytest._code.code import _TracebackStyle + from _pytest.terminal import TerminalReporter + from .argparsing import Argument + + +_PluggyPlugin = object +"""A type to represent plugin objects. + +Plugins can be any namespace, so we can't narrow it down much, but we use an +alias to make the intent clear. + +Ideally this type would be provided by pluggy itself. +""" + + +hookimpl = HookimplMarker("pytest") +hookspec = HookspecMarker("pytest") + + +@final +class ExitCode(enum.IntEnum): + """Encodes the valid exit codes by pytest. + + Currently users and plugins may supply other exit codes as well. + + .. versionadded:: 5.0 + """ + + #: Tests passed. + OK = 0 + #: Tests failed. + TESTS_FAILED = 1 + #: pytest was interrupted. + INTERRUPTED = 2 + #: An internal error got in the way. + INTERNAL_ERROR = 3 + #: pytest was misused. + USAGE_ERROR = 4 + #: pytest couldn't find tests. + NO_TESTS_COLLECTED = 5 + + +class ConftestImportFailure(Exception): + def __init__( + self, + path: Path, + excinfo: Tuple[Type[Exception], Exception, TracebackType], + ) -> None: + super().__init__(path, excinfo) + self.path = path + self.excinfo = excinfo + + def __str__(self) -> str: + return "{}: {} (from {})".format( + self.excinfo[0].__name__, self.excinfo[1], self.path + ) + + +def filter_traceback_for_conftest_import_failure( + entry: _pytest._code.TracebackEntry, +) -> bool: + """Filter tracebacks entries which point to pytest internals or importlib. + + Make a special case for importlib because we use it to import test modules and conftest files + in _pytest.pathlib.import_path. + """ + return filter_traceback(entry) and "importlib" not in str(entry.path).split(os.sep) + + +def main( + args: Optional[Union[List[str], "os.PathLike[str]"]] = None, + plugins: Optional[Sequence[Union[str, _PluggyPlugin]]] = None, +) -> Union[int, ExitCode]: + """Perform an in-process test run. + + :param args: List of command line arguments. + :param plugins: List of plugin objects to be auto-registered during initialization. + + :returns: An exit code. + """ + try: + try: + config = _prepareconfig(args, plugins) + except ConftestImportFailure as e: + exc_info = ExceptionInfo.from_exc_info(e.excinfo) + tw = TerminalWriter(sys.stderr) + tw.line(f"ImportError while loading conftest '{e.path}'.", red=True) + exc_info.traceback = exc_info.traceback.filter( + filter_traceback_for_conftest_import_failure + ) + exc_repr = ( + exc_info.getrepr(style="short", chain=False) + if exc_info.traceback + else exc_info.exconly() + ) + formatted_tb = str(exc_repr) + for line in formatted_tb.splitlines(): + tw.line(line.rstrip(), red=True) + return ExitCode.USAGE_ERROR + else: + try: + ret: Union[ExitCode, int] = config.hook.pytest_cmdline_main( + config=config + ) + try: + return ExitCode(ret) + except ValueError: + return ret + finally: + config._ensure_unconfigure() + except UsageError as e: + tw = TerminalWriter(sys.stderr) + for msg in e.args: + tw.line(f"ERROR: {msg}\n", red=True) + return ExitCode.USAGE_ERROR + + +def console_main() -> int: + """The CLI entry point of pytest. + + This function is not meant for programmable use; use `main()` instead. + """ + # https://docs.python.org/3/library/signal.html#note-on-sigpipe + try: + code = main() + sys.stdout.flush() + return code + except BrokenPipeError: + # Python flushes standard streams on exit; redirect remaining output + # to devnull to avoid another BrokenPipeError at shutdown + devnull = os.open(os.devnull, os.O_WRONLY) + os.dup2(devnull, sys.stdout.fileno()) + return 1 # Python exits with error code 1 on EPIPE + + +class cmdline: # compatibility namespace + main = staticmethod(main) + + +def filename_arg(path: str, optname: str) -> str: + """Argparse type validator for filename arguments. + + :path: Path of filename. + :optname: Name of the option. + """ + if os.path.isdir(path): + raise UsageError(f"{optname} must be a filename, given: {path}") + return path + + +def directory_arg(path: str, optname: str) -> str: + """Argparse type validator for directory arguments. + + :path: Path of directory. + :optname: Name of the option. + """ + if not os.path.isdir(path): + raise UsageError(f"{optname} must be a directory, given: {path}") + return path + + +# Plugins that cannot be disabled via "-p no:X" currently. +essential_plugins = ( + "mark", + "main", + "runner", + "fixtures", + "helpconfig", # Provides -p. +) + +default_plugins = essential_plugins + ( + "python", + "terminal", + "debugging", + "unittest", + "capture", + "skipping", + "legacypath", + "tmpdir", + "monkeypatch", + "recwarn", + "pastebin", + "nose", + "assertion", + "junitxml", + "doctest", + "cacheprovider", + "freeze_support", + "setuponly", + "setupplan", + "stepwise", + "warnings", + "logging", + "reports", + "python_path", + *(["unraisableexception", "threadexception"] if sys.version_info >= (3, 8) else []), + "faulthandler", +) + +builtin_plugins = set(default_plugins) +builtin_plugins.add("pytester") +builtin_plugins.add("pytester_assertions") + + +def get_config( + args: Optional[List[str]] = None, + plugins: Optional[Sequence[Union[str, _PluggyPlugin]]] = None, +) -> "Config": + # subsequent calls to main will create a fresh instance + pluginmanager = PytestPluginManager() + config = Config( + pluginmanager, + invocation_params=Config.InvocationParams( + args=args or (), + plugins=plugins, + dir=Path.cwd(), + ), + ) + + if args is not None: + # Handle any "-p no:plugin" args. + pluginmanager.consider_preparse(args, exclude_only=True) + + for spec in default_plugins: + pluginmanager.import_plugin(spec) + + return config + + +def get_plugin_manager() -> "PytestPluginManager": + """Obtain a new instance of the + :py:class:`pytest.PytestPluginManager`, with default plugins + already loaded. + + This function can be used by integration with other tools, like hooking + into pytest to run tests into an IDE. + """ + return get_config().pluginmanager + + +def _prepareconfig( + args: Optional[Union[List[str], "os.PathLike[str]"]] = None, + plugins: Optional[Sequence[Union[str, _PluggyPlugin]]] = None, +) -> "Config": + if args is None: + args = sys.argv[1:] + elif isinstance(args, os.PathLike): + args = [os.fspath(args)] + elif not isinstance(args, list): + msg = ( # type:ignore[unreachable] + "`args` parameter expected to be a list of strings, got: {!r} (type: {})" + ) + raise TypeError(msg.format(args, type(args))) + + config = get_config(args, plugins) + pluginmanager = config.pluginmanager + try: + if plugins: + for plugin in plugins: + if isinstance(plugin, str): + pluginmanager.consider_pluginarg(plugin) + else: + pluginmanager.register(plugin) + config = pluginmanager.hook.pytest_cmdline_parse( + pluginmanager=pluginmanager, args=args + ) + return config + except BaseException: + config._ensure_unconfigure() + raise + + +def _get_directory(path: Path) -> Path: + """Get the directory of a path - itself if already a directory.""" + if path.is_file(): + return path.parent + else: + return path + + +def _get_legacy_hook_marks( + method: Any, + hook_type: str, + opt_names: Tuple[str, ...], +) -> Dict[str, bool]: + if TYPE_CHECKING: + # abuse typeguard from importlib to avoid massive method type union thats lacking a alias + assert inspect.isroutine(method) + known_marks: set[str] = {m.name for m in getattr(method, "pytestmark", [])} + must_warn: list[str] = [] + opts: dict[str, bool] = {} + for opt_name in opt_names: + opt_attr = getattr(method, opt_name, AttributeError) + if opt_attr is not AttributeError: + must_warn.append(f"{opt_name}={opt_attr}") + opts[opt_name] = True + elif opt_name in known_marks: + must_warn.append(f"{opt_name}=True") + opts[opt_name] = True + else: + opts[opt_name] = False + if must_warn: + hook_opts = ", ".join(must_warn) + message = _pytest.deprecated.HOOK_LEGACY_MARKING.format( + type=hook_type, + fullname=method.__qualname__, + hook_opts=hook_opts, + ) + warn_explicit_for(cast(FunctionType, method), message) + return opts + + +@final +class PytestPluginManager(PluginManager): + """A :py:class:`pluggy.PluginManager ` with + additional pytest-specific functionality: + + * Loading plugins from the command line, ``PYTEST_PLUGINS`` env variable and + ``pytest_plugins`` global variables found in plugins being loaded. + * ``conftest.py`` loading during start-up. + """ + + def __init__(self) -> None: + import _pytest.assertion + + super().__init__("pytest") + + # -- State related to local conftest plugins. + # All loaded conftest modules. + self._conftest_plugins: Set[types.ModuleType] = set() + # All conftest modules applicable for a directory. + # This includes the directory's own conftest modules as well + # as those of its parent directories. + self._dirpath2confmods: Dict[Path, List[types.ModuleType]] = {} + # Cutoff directory above which conftests are no longer discovered. + self._confcutdir: Optional[Path] = None + # If set, conftest loading is skipped. + self._noconftest = False + + # _getconftestmodules()'s call to _get_directory() causes a stat + # storm when it's called potentially thousands of times in a test + # session (#9478), often with the same path, so cache it. + self._get_directory = lru_cache(256)(_get_directory) + + self._duplicatepaths: Set[Path] = set() + + # plugins that were explicitly skipped with pytest.skip + # list of (module name, skip reason) + # previously we would issue a warning when a plugin was skipped, but + # since we refactored warnings as first citizens of Config, they are + # just stored here to be used later. + self.skipped_plugins: List[Tuple[str, str]] = [] + + self.add_hookspecs(_pytest.hookspec) + self.register(self) + if os.environ.get("PYTEST_DEBUG"): + err: IO[str] = sys.stderr + encoding: str = getattr(err, "encoding", "utf8") + try: + err = open( + os.dup(err.fileno()), + mode=err.mode, + buffering=1, + encoding=encoding, + ) + except Exception: + pass + self.trace.root.setwriter(err.write) + self.enable_tracing() + + # Config._consider_importhook will set a real object if required. + self.rewrite_hook = _pytest.assertion.DummyRewriteHook() + # Used to know when we are importing conftests after the pytest_configure stage. + self._configured = False + + def parse_hookimpl_opts(self, plugin: _PluggyPlugin, name: str): + # pytest hooks are always prefixed with "pytest_", + # so we avoid accessing possibly non-readable attributes + # (see issue #1073). + if not name.startswith("pytest_"): + return + # Ignore names which can not be hooks. + if name == "pytest_plugins": + return + + opts = super().parse_hookimpl_opts(plugin, name) + if opts is not None: + return opts + + method = getattr(plugin, name) + # Consider only actual functions for hooks (#3775). + if not inspect.isroutine(method): + return + # Collect unmarked hooks as long as they have the `pytest_' prefix. + return _get_legacy_hook_marks( + method, "impl", ("tryfirst", "trylast", "optionalhook", "hookwrapper") + ) + + def parse_hookspec_opts(self, module_or_class, name: str): + opts = super().parse_hookspec_opts(module_or_class, name) + if opts is None: + method = getattr(module_or_class, name) + if name.startswith("pytest_"): + opts = _get_legacy_hook_marks( + method, + "spec", + ("firstresult", "historic"), + ) + return opts + + def register( + self, plugin: _PluggyPlugin, name: Optional[str] = None + ) -> Optional[str]: + if name in _pytest.deprecated.DEPRECATED_EXTERNAL_PLUGINS: + warnings.warn( + PytestConfigWarning( + "{} plugin has been merged into the core, " + "please remove it from your requirements.".format( + name.replace("_", "-") + ) + ) + ) + return None + ret: Optional[str] = super().register(plugin, name) + if ret: + self.hook.pytest_plugin_registered.call_historic( + kwargs=dict(plugin=plugin, manager=self) + ) + + if isinstance(plugin, types.ModuleType): + self.consider_module(plugin) + return ret + + def getplugin(self, name: str): + # Support deprecated naming because plugins (xdist e.g.) use it. + plugin: Optional[_PluggyPlugin] = self.get_plugin(name) + return plugin + + def hasplugin(self, name: str) -> bool: + """Return whether a plugin with the given name is registered.""" + return bool(self.get_plugin(name)) + + def pytest_configure(self, config: "Config") -> None: + """:meta private:""" + # XXX now that the pluginmanager exposes hookimpl(tryfirst...) + # we should remove tryfirst/trylast as markers. + config.addinivalue_line( + "markers", + "tryfirst: mark a hook implementation function such that the " + "plugin machinery will try to call it first/as early as possible. " + "DEPRECATED, use @pytest.hookimpl(tryfirst=True) instead.", + ) + config.addinivalue_line( + "markers", + "trylast: mark a hook implementation function such that the " + "plugin machinery will try to call it last/as late as possible. " + "DEPRECATED, use @pytest.hookimpl(trylast=True) instead.", + ) + self._configured = True + + # + # Internal API for local conftest plugin handling. + # + def _set_initial_conftests( + self, namespace: argparse.Namespace, rootpath: Path + ) -> None: + """Load initial conftest files given a preparsed "namespace". + + As conftest files may add their own command line options which have + arguments ('--my-opt somepath') we might get some false positives. + All builtin and 3rd party plugins will have been loaded, however, so + common options will not confuse our logic here. + """ + current = Path.cwd() + self._confcutdir = ( + absolutepath(current / namespace.confcutdir) + if namespace.confcutdir + else None + ) + self._noconftest = namespace.noconftest + self._using_pyargs = namespace.pyargs + testpaths = namespace.file_or_dir + foundanchor = False + for testpath in testpaths: + path = str(testpath) + # remove node-id syntax + i = path.find("::") + if i != -1: + path = path[:i] + anchor = absolutepath(current / path) + if anchor.exists(): # we found some file object + self._try_load_conftest(anchor, namespace.importmode, rootpath) + foundanchor = True + if not foundanchor: + self._try_load_conftest(current, namespace.importmode, rootpath) + + def _is_in_confcutdir(self, path: Path) -> bool: + """Whether a path is within the confcutdir. + + When false, should not load conftest. + """ + if self._confcutdir is None: + return True + return path not in self._confcutdir.parents + + def _try_load_conftest( + self, anchor: Path, importmode: Union[str, ImportMode], rootpath: Path + ) -> None: + self._getconftestmodules(anchor, importmode, rootpath) + # let's also consider test* subdirs + if anchor.is_dir(): + for x in anchor.glob("test*"): + if x.is_dir(): + self._getconftestmodules(x, importmode, rootpath) + + def _getconftestmodules( + self, path: Path, importmode: Union[str, ImportMode], rootpath: Path + ) -> Sequence[types.ModuleType]: + if self._noconftest: + return [] + + directory = self._get_directory(path) + + # Optimization: avoid repeated searches in the same directory. + # Assumes always called with same importmode and rootpath. + existing_clist = self._dirpath2confmods.get(directory) + if existing_clist is not None: + return existing_clist + + # XXX these days we may rather want to use config.rootpath + # and allow users to opt into looking into the rootdir parent + # directories instead of requiring to specify confcutdir. + clist = [] + for parent in reversed((directory, *directory.parents)): + if self._is_in_confcutdir(parent): + conftestpath = parent / "conftest.py" + if conftestpath.is_file(): + mod = self._importconftest(conftestpath, importmode, rootpath) + clist.append(mod) + self._dirpath2confmods[directory] = clist + return clist + + def _rget_with_confmod( + self, + name: str, + path: Path, + importmode: Union[str, ImportMode], + rootpath: Path, + ) -> Tuple[types.ModuleType, Any]: + modules = self._getconftestmodules(path, importmode, rootpath=rootpath) + for mod in reversed(modules): + try: + return mod, getattr(mod, name) + except AttributeError: + continue + raise KeyError(name) + + def _importconftest( + self, conftestpath: Path, importmode: Union[str, ImportMode], rootpath: Path + ) -> types.ModuleType: + existing = self.get_plugin(str(conftestpath)) + if existing is not None: + return cast(types.ModuleType, existing) + + pkgpath = resolve_package_path(conftestpath) + if pkgpath is None: + _ensure_removed_sysmodule(conftestpath.stem) + + try: + mod = import_path(conftestpath, mode=importmode, root=rootpath) + except Exception as e: + assert e.__traceback__ is not None + exc_info = (type(e), e, e.__traceback__) + raise ConftestImportFailure(conftestpath, exc_info) from e + + self._check_non_top_pytest_plugins(mod, conftestpath) + + self._conftest_plugins.add(mod) + dirpath = conftestpath.parent + if dirpath in self._dirpath2confmods: + for path, mods in self._dirpath2confmods.items(): + if dirpath in path.parents or path == dirpath: + assert mod not in mods + mods.append(mod) + self.trace(f"loading conftestmodule {mod!r}") + self.consider_conftest(mod) + return mod + + def _check_non_top_pytest_plugins( + self, + mod: types.ModuleType, + conftestpath: Path, + ) -> None: + if ( + hasattr(mod, "pytest_plugins") + and self._configured + and not self._using_pyargs + ): + msg = ( + "Defining 'pytest_plugins' in a non-top-level conftest is no longer supported:\n" + "It affects the entire test suite instead of just below the conftest as expected.\n" + " {}\n" + "Please move it to a top level conftest file at the rootdir:\n" + " {}\n" + "For more information, visit:\n" + " https://docs.pytest.org/en/stable/deprecations.html#pytest-plugins-in-non-top-level-conftest-files" + ) + fail(msg.format(conftestpath, self._confcutdir), pytrace=False) + + # + # API for bootstrapping plugin loading + # + # + + def consider_preparse( + self, args: Sequence[str], *, exclude_only: bool = False + ) -> None: + """:meta private:""" + i = 0 + n = len(args) + while i < n: + opt = args[i] + i += 1 + if isinstance(opt, str): + if opt == "-p": + try: + parg = args[i] + except IndexError: + return + i += 1 + elif opt.startswith("-p"): + parg = opt[2:] + else: + continue + if exclude_only and not parg.startswith("no:"): + continue + self.consider_pluginarg(parg) + + def consider_pluginarg(self, arg: str) -> None: + """:meta private:""" + if arg.startswith("no:"): + name = arg[3:] + if name in essential_plugins: + raise UsageError("plugin %s cannot be disabled" % name) + + # PR #4304: remove stepwise if cacheprovider is blocked. + if name == "cacheprovider": + self.set_blocked("stepwise") + self.set_blocked("pytest_stepwise") + + self.set_blocked(name) + if not name.startswith("pytest_"): + self.set_blocked("pytest_" + name) + else: + name = arg + # Unblock the plugin. None indicates that it has been blocked. + # There is no interface with pluggy for this. + if self._name2plugin.get(name, -1) is None: + del self._name2plugin[name] + if not name.startswith("pytest_"): + if self._name2plugin.get("pytest_" + name, -1) is None: + del self._name2plugin["pytest_" + name] + self.import_plugin(arg, consider_entry_points=True) + + def consider_conftest(self, conftestmodule: types.ModuleType) -> None: + """:meta private:""" + self.register(conftestmodule, name=conftestmodule.__file__) + + def consider_env(self) -> None: + """:meta private:""" + self._import_plugin_specs(os.environ.get("PYTEST_PLUGINS")) + + def consider_module(self, mod: types.ModuleType) -> None: + """:meta private:""" + self._import_plugin_specs(getattr(mod, "pytest_plugins", [])) + + def _import_plugin_specs( + self, spec: Union[None, types.ModuleType, str, Sequence[str]] + ) -> None: + plugins = _get_plugin_specs_as_list(spec) + for import_spec in plugins: + self.import_plugin(import_spec) + + def import_plugin(self, modname: str, consider_entry_points: bool = False) -> None: + """Import a plugin with ``modname``. + + If ``consider_entry_points`` is True, entry point names are also + considered to find a plugin. + """ + # Most often modname refers to builtin modules, e.g. "pytester", + # "terminal" or "capture". Those plugins are registered under their + # basename for historic purposes but must be imported with the + # _pytest prefix. + assert isinstance(modname, str), ( + "module name as text required, got %r" % modname + ) + if self.is_blocked(modname) or self.get_plugin(modname) is not None: + return + + importspec = "_pytest." + modname if modname in builtin_plugins else modname + self.rewrite_hook.mark_rewrite(importspec) + + if consider_entry_points: + loaded = self.load_setuptools_entrypoints("pytest11", name=modname) + if loaded: + return + + try: + __import__(importspec) + except ImportError as e: + raise ImportError( + f'Error importing plugin "{modname}": {e.args[0]}' + ).with_traceback(e.__traceback__) from e + + except Skipped as e: + self.skipped_plugins.append((modname, e.msg or "")) + else: + mod = sys.modules[importspec] + self.register(mod, modname) + + +def _get_plugin_specs_as_list( + specs: Union[None, types.ModuleType, str, Sequence[str]] +) -> List[str]: + """Parse a plugins specification into a list of plugin names.""" + # None means empty. + if specs is None: + return [] + # Workaround for #3899 - a submodule which happens to be called "pytest_plugins". + if isinstance(specs, types.ModuleType): + return [] + # Comma-separated list. + if isinstance(specs, str): + return specs.split(",") if specs else [] + # Direct specification. + if isinstance(specs, collections.abc.Sequence): + return list(specs) + raise UsageError( + "Plugins may be specified as a sequence or a ','-separated string of plugin names. Got: %r" + % specs + ) + + +def _ensure_removed_sysmodule(modname: str) -> None: + try: + del sys.modules[modname] + except KeyError: + pass + + +class Notset: + def __repr__(self): + return "" + + +notset = Notset() + + +def _iter_rewritable_modules(package_files: Iterable[str]) -> Iterator[str]: + """Given an iterable of file names in a source distribution, return the "names" that should + be marked for assertion rewrite. + + For example the package "pytest_mock/__init__.py" should be added as "pytest_mock" in + the assertion rewrite mechanism. + + This function has to deal with dist-info based distributions and egg based distributions + (which are still very much in use for "editable" installs). + + Here are the file names as seen in a dist-info based distribution: + + pytest_mock/__init__.py + pytest_mock/_version.py + pytest_mock/plugin.py + pytest_mock.egg-info/PKG-INFO + + Here are the file names as seen in an egg based distribution: + + src/pytest_mock/__init__.py + src/pytest_mock/_version.py + src/pytest_mock/plugin.py + src/pytest_mock.egg-info/PKG-INFO + LICENSE + setup.py + + We have to take in account those two distribution flavors in order to determine which + names should be considered for assertion rewriting. + + More information: + https://github.com/pytest-dev/pytest-mock/issues/167 + """ + package_files = list(package_files) + seen_some = False + for fn in package_files: + is_simple_module = "/" not in fn and fn.endswith(".py") + is_package = fn.count("/") == 1 and fn.endswith("__init__.py") + if is_simple_module: + module_name, _ = os.path.splitext(fn) + # we ignore "setup.py" at the root of the distribution + # as well as editable installation finder modules made by setuptools + if module_name != "setup" and not module_name.startswith("__editable__"): + seen_some = True + yield module_name + elif is_package: + package_name = os.path.dirname(fn) + seen_some = True + yield package_name + + if not seen_some: + # At this point we did not find any packages or modules suitable for assertion + # rewriting, so we try again by stripping the first path component (to account for + # "src" based source trees for example). + # This approach lets us have the common case continue to be fast, as egg-distributions + # are rarer. + new_package_files = [] + for fn in package_files: + parts = fn.split("/") + new_fn = "/".join(parts[1:]) + if new_fn: + new_package_files.append(new_fn) + if new_package_files: + yield from _iter_rewritable_modules(new_package_files) + + +def _args_converter(args: Iterable[str]) -> Tuple[str, ...]: + return tuple(args) + + +@final +class Config: + """Access to configuration values, pluginmanager and plugin hooks. + + :param PytestPluginManager pluginmanager: + A pytest PluginManager. + + :param InvocationParams invocation_params: + Object containing parameters regarding the :func:`pytest.main` + invocation. + """ + + @final + @attr.s(frozen=True, auto_attribs=True) + class InvocationParams: + """Holds parameters passed during :func:`pytest.main`. + + The object attributes are read-only. + + .. versionadded:: 5.1 + + .. note:: + + Note that the environment variable ``PYTEST_ADDOPTS`` and the ``addopts`` + ini option are handled by pytest, not being included in the ``args`` attribute. + + Plugins accessing ``InvocationParams`` must be aware of that. + """ + + args: Tuple[str, ...] = attr.ib(converter=_args_converter) + """The command-line arguments as passed to :func:`pytest.main`.""" + plugins: Optional[Sequence[Union[str, _PluggyPlugin]]] + """Extra plugins, might be `None`.""" + dir: Path + """The directory from which :func:`pytest.main` was invoked.""" + + class ArgsSource(enum.Enum): + """Indicates the source of the test arguments. + + .. versionadded:: 7.2 + """ + + #: Command line arguments. + ARGS = enum.auto() + #: Invocation directory. + INCOVATION_DIR = enum.auto() + #: 'testpaths' configuration value. + TESTPATHS = enum.auto() + + def __init__( + self, + pluginmanager: PytestPluginManager, + *, + invocation_params: Optional[InvocationParams] = None, + ) -> None: + from .argparsing import Parser, FILE_OR_DIR + + if invocation_params is None: + invocation_params = self.InvocationParams( + args=(), plugins=None, dir=Path.cwd() + ) + + self.option = argparse.Namespace() + """Access to command line option as attributes. + + :type: argparse.Namespace + """ + + self.invocation_params = invocation_params + """The parameters with which pytest was invoked. + + :type: InvocationParams + """ + + _a = FILE_OR_DIR + self._parser = Parser( + usage=f"%(prog)s [options] [{_a}] [{_a}] [...]", + processopt=self._processopt, + _ispytest=True, + ) + self.pluginmanager = pluginmanager + """The plugin manager handles plugin registration and hook invocation. + + :type: PytestPluginManager + """ + + self.stash = Stash() + """A place where plugins can store information on the config for their + own use. + + :type: Stash + """ + # Deprecated alias. Was never public. Can be removed in a few releases. + self._store = self.stash + + from .compat import PathAwareHookProxy + + self.trace = self.pluginmanager.trace.root.get("config") + self.hook = PathAwareHookProxy(self.pluginmanager.hook) + self._inicache: Dict[str, Any] = {} + self._override_ini: Sequence[str] = () + self._opt2dest: Dict[str, str] = {} + self._cleanup: List[Callable[[], None]] = [] + self.pluginmanager.register(self, "pytestconfig") + self._configured = False + self.hook.pytest_addoption.call_historic( + kwargs=dict(parser=self._parser, pluginmanager=self.pluginmanager) + ) + + if TYPE_CHECKING: + from _pytest.cacheprovider import Cache + + self.cache: Optional[Cache] = None + + @property + def rootpath(self) -> Path: + """The path to the :ref:`rootdir `. + + :type: pathlib.Path + + .. versionadded:: 6.1 + """ + return self._rootpath + + @property + def inipath(self) -> Optional[Path]: + """The path to the :ref:`configfile `. + + :type: Optional[pathlib.Path] + + .. versionadded:: 6.1 + """ + return self._inipath + + def add_cleanup(self, func: Callable[[], None]) -> None: + """Add a function to be called when the config object gets out of + use (usually coinciding with pytest_unconfigure).""" + self._cleanup.append(func) + + def _do_configure(self) -> None: + assert not self._configured + self._configured = True + with warnings.catch_warnings(): + warnings.simplefilter("default") + self.hook.pytest_configure.call_historic(kwargs=dict(config=self)) + + def _ensure_unconfigure(self) -> None: + if self._configured: + self._configured = False + self.hook.pytest_unconfigure(config=self) + self.hook.pytest_configure._call_history = [] + while self._cleanup: + fin = self._cleanup.pop() + fin() + + def get_terminal_writer(self) -> TerminalWriter: + terminalreporter: TerminalReporter = self.pluginmanager.get_plugin( + "terminalreporter" + ) + return terminalreporter._tw + + def pytest_cmdline_parse( + self, pluginmanager: PytestPluginManager, args: List[str] + ) -> "Config": + try: + self.parse(args) + except UsageError: + + # Handle --version and --help here in a minimal fashion. + # This gets done via helpconfig normally, but its + # pytest_cmdline_main is not called in case of errors. + if getattr(self.option, "version", False) or "--version" in args: + from _pytest.helpconfig import showversion + + showversion(self) + elif ( + getattr(self.option, "help", False) or "--help" in args or "-h" in args + ): + self._parser._getparser().print_help() + sys.stdout.write( + "\nNOTE: displaying only minimal help due to UsageError.\n\n" + ) + + raise + + return self + + def notify_exception( + self, + excinfo: ExceptionInfo[BaseException], + option: Optional[argparse.Namespace] = None, + ) -> None: + if option and getattr(option, "fulltrace", False): + style: _TracebackStyle = "long" + else: + style = "native" + excrepr = excinfo.getrepr( + funcargs=True, showlocals=getattr(option, "showlocals", False), style=style + ) + res = self.hook.pytest_internalerror(excrepr=excrepr, excinfo=excinfo) + if not any(res): + for line in str(excrepr).split("\n"): + sys.stderr.write("INTERNALERROR> %s\n" % line) + sys.stderr.flush() + + def cwd_relative_nodeid(self, nodeid: str) -> str: + # nodeid's are relative to the rootpath, compute relative to cwd. + if self.invocation_params.dir != self.rootpath: + fullpath = self.rootpath / nodeid + nodeid = bestrelpath(self.invocation_params.dir, fullpath) + return nodeid + + @classmethod + def fromdictargs(cls, option_dict, args) -> "Config": + """Constructor usable for subprocesses.""" + config = get_config(args) + config.option.__dict__.update(option_dict) + config.parse(args, addopts=False) + for x in config.option.plugins: + config.pluginmanager.consider_pluginarg(x) + return config + + def _processopt(self, opt: "Argument") -> None: + for name in opt._short_opts + opt._long_opts: + self._opt2dest[name] = opt.dest + + if hasattr(opt, "default"): + if not hasattr(self.option, opt.dest): + setattr(self.option, opt.dest, opt.default) + + @hookimpl(trylast=True) + def pytest_load_initial_conftests(self, early_config: "Config") -> None: + self.pluginmanager._set_initial_conftests( + early_config.known_args_namespace, rootpath=early_config.rootpath + ) + + def _initini(self, args: Sequence[str]) -> None: + ns, unknown_args = self._parser.parse_known_and_unknown_args( + args, namespace=copy.copy(self.option) + ) + rootpath, inipath, inicfg = determine_setup( + ns.inifilename, + ns.file_or_dir + unknown_args, + rootdir_cmd_arg=ns.rootdir or None, + config=self, + ) + self._rootpath = rootpath + self._inipath = inipath + self.inicfg = inicfg + self._parser.extra_info["rootdir"] = str(self.rootpath) + self._parser.extra_info["inifile"] = str(self.inipath) + self._parser.addini("addopts", "Extra command line options", "args") + self._parser.addini("minversion", "Minimally required pytest version") + self._parser.addini( + "required_plugins", + "Plugins that must be present for pytest to run", + type="args", + default=[], + ) + self._override_ini = ns.override_ini or () + + def _consider_importhook(self, args: Sequence[str]) -> None: + """Install the PEP 302 import hook if using assertion rewriting. + + Needs to parse the --assert= option from the commandline + and find all the installed plugins to mark them for rewriting + by the importhook. + """ + ns, unknown_args = self._parser.parse_known_and_unknown_args(args) + mode = getattr(ns, "assertmode", "plain") + if mode == "rewrite": + import _pytest.assertion + + try: + hook = _pytest.assertion.install_importhook(self) + except SystemError: + mode = "plain" + else: + self._mark_plugins_for_rewrite(hook) + self._warn_about_missing_assertion(mode) + + def _mark_plugins_for_rewrite(self, hook) -> None: + """Given an importhook, mark for rewrite any top-level + modules or packages in the distribution package for + all pytest plugins.""" + self.pluginmanager.rewrite_hook = hook + + if os.environ.get("PYTEST_DISABLE_PLUGIN_AUTOLOAD"): + # We don't autoload from setuptools entry points, no need to continue. + return + + package_files = ( + str(file) + for dist in importlib_metadata.distributions() + if any(ep.group == "pytest11" for ep in dist.entry_points) + for file in dist.files or [] + ) + + for name in _iter_rewritable_modules(package_files): + hook.mark_rewrite(name) + + def _validate_args(self, args: List[str], via: str) -> List[str]: + """Validate known args.""" + self._parser._config_source_hint = via # type: ignore + try: + self._parser.parse_known_and_unknown_args( + args, namespace=copy.copy(self.option) + ) + finally: + del self._parser._config_source_hint # type: ignore + + return args + + def _preparse(self, args: List[str], addopts: bool = True) -> None: + if addopts: + env_addopts = os.environ.get("PYTEST_ADDOPTS", "") + if len(env_addopts): + args[:] = ( + self._validate_args(shlex.split(env_addopts), "via PYTEST_ADDOPTS") + + args + ) + self._initini(args) + if addopts: + args[:] = ( + self._validate_args(self.getini("addopts"), "via addopts config") + args + ) + + self.known_args_namespace = self._parser.parse_known_args( + args, namespace=copy.copy(self.option) + ) + self._checkversion() + self._consider_importhook(args) + self.pluginmanager.consider_preparse(args, exclude_only=False) + if not os.environ.get("PYTEST_DISABLE_PLUGIN_AUTOLOAD"): + # Don't autoload from setuptools entry point. Only explicitly specified + # plugins are going to be loaded. + self.pluginmanager.load_setuptools_entrypoints("pytest11") + self.pluginmanager.consider_env() + + self.known_args_namespace = self._parser.parse_known_args( + args, namespace=copy.copy(self.known_args_namespace) + ) + + self._validate_plugins() + self._warn_about_skipped_plugins() + + if self.known_args_namespace.strict: + self.issue_config_time_warning( + _pytest.deprecated.STRICT_OPTION, stacklevel=2 + ) + + if self.known_args_namespace.confcutdir is None and self.inipath is not None: + confcutdir = str(self.inipath.parent) + self.known_args_namespace.confcutdir = confcutdir + try: + self.hook.pytest_load_initial_conftests( + early_config=self, args=args, parser=self._parser + ) + except ConftestImportFailure as e: + if self.known_args_namespace.help or self.known_args_namespace.version: + # we don't want to prevent --help/--version to work + # so just let is pass and print a warning at the end + self.issue_config_time_warning( + PytestConfigWarning(f"could not load initial conftests: {e.path}"), + stacklevel=2, + ) + else: + raise + + @hookimpl(hookwrapper=True) + def pytest_collection(self) -> Generator[None, None, None]: + # Validate invalid ini keys after collection is done so we take in account + # options added by late-loading conftest files. + yield + self._validate_config_options() + + def _checkversion(self) -> None: + import pytest + + minver = self.inicfg.get("minversion", None) + if minver: + # Imported lazily to improve start-up time. + from packaging.version import Version + + if not isinstance(minver, str): + raise pytest.UsageError( + "%s: 'minversion' must be a single value" % self.inipath + ) + + if Version(minver) > Version(pytest.__version__): + raise pytest.UsageError( + "%s: 'minversion' requires pytest-%s, actual pytest-%s'" + % ( + self.inipath, + minver, + pytest.__version__, + ) + ) + + def _validate_config_options(self) -> None: + for key in sorted(self._get_unknown_ini_keys()): + self._warn_or_fail_if_strict(f"Unknown config option: {key}\n") + + def _validate_plugins(self) -> None: + required_plugins = sorted(self.getini("required_plugins")) + if not required_plugins: + return + + # Imported lazily to improve start-up time. + from packaging.version import Version + from packaging.requirements import InvalidRequirement, Requirement + + plugin_info = self.pluginmanager.list_plugin_distinfo() + plugin_dist_info = {dist.project_name: dist.version for _, dist in plugin_info} + + missing_plugins = [] + for required_plugin in required_plugins: + try: + req = Requirement(required_plugin) + except InvalidRequirement: + missing_plugins.append(required_plugin) + continue + + if req.name not in plugin_dist_info: + missing_plugins.append(required_plugin) + elif not req.specifier.contains( + Version(plugin_dist_info[req.name]), prereleases=True + ): + missing_plugins.append(required_plugin) + + if missing_plugins: + raise UsageError( + "Missing required plugins: {}".format(", ".join(missing_plugins)), + ) + + def _warn_or_fail_if_strict(self, message: str) -> None: + if self.known_args_namespace.strict_config: + raise UsageError(message) + + self.issue_config_time_warning(PytestConfigWarning(message), stacklevel=3) + + def _get_unknown_ini_keys(self) -> List[str]: + parser_inicfg = self._parser._inidict + return [name for name in self.inicfg if name not in parser_inicfg] + + def parse(self, args: List[str], addopts: bool = True) -> None: + # Parse given cmdline arguments into this config object. + assert not hasattr( + self, "args" + ), "can only parse cmdline args at most once per Config object" + self.hook.pytest_addhooks.call_historic( + kwargs=dict(pluginmanager=self.pluginmanager) + ) + self._preparse(args, addopts=addopts) + # XXX deprecated hook: + self.hook.pytest_cmdline_preparse(config=self, args=args) + self._parser.after_preparse = True # type: ignore + try: + source = Config.ArgsSource.ARGS + args = self._parser.parse_setoption( + args, self.option, namespace=self.option + ) + if not args: + if self.invocation_params.dir == self.rootpath: + source = Config.ArgsSource.TESTPATHS + testpaths: List[str] = self.getini("testpaths") + if self.known_args_namespace.pyargs: + args = testpaths + else: + args = [] + for path in testpaths: + args.extend(sorted(glob.iglob(path, recursive=True))) + if not args: + source = Config.ArgsSource.INCOVATION_DIR + args = [str(self.invocation_params.dir)] + self.args = args + self.args_source = source + except PrintHelp: + pass + + def issue_config_time_warning(self, warning: Warning, stacklevel: int) -> None: + """Issue and handle a warning during the "configure" stage. + + During ``pytest_configure`` we can't capture warnings using the ``catch_warnings_for_item`` + function because it is not possible to have hookwrappers around ``pytest_configure``. + + This function is mainly intended for plugins that need to issue warnings during + ``pytest_configure`` (or similar stages). + + :param warning: The warning instance. + :param stacklevel: stacklevel forwarded to warnings.warn. + """ + if self.pluginmanager.is_blocked("warnings"): + return + + cmdline_filters = self.known_args_namespace.pythonwarnings or [] + config_filters = self.getini("filterwarnings") + + with warnings.catch_warnings(record=True) as records: + warnings.simplefilter("always", type(warning)) + apply_warning_filters(config_filters, cmdline_filters) + warnings.warn(warning, stacklevel=stacklevel) + + if records: + frame = sys._getframe(stacklevel - 1) + location = frame.f_code.co_filename, frame.f_lineno, frame.f_code.co_name + self.hook.pytest_warning_recorded.call_historic( + kwargs=dict( + warning_message=records[0], + when="config", + nodeid="", + location=location, + ) + ) + + def addinivalue_line(self, name: str, line: str) -> None: + """Add a line to an ini-file option. The option must have been + declared but might not yet be set in which case the line becomes + the first line in its value.""" + x = self.getini(name) + assert isinstance(x, list) + x.append(line) # modifies the cached list inline + + def getini(self, name: str): + """Return configuration value from an :ref:`ini file `. + + If the specified name hasn't been registered through a prior + :func:`parser.addini ` call (usually from a + plugin), a ValueError is raised. + """ + try: + return self._inicache[name] + except KeyError: + self._inicache[name] = val = self._getini(name) + return val + + # Meant for easy monkeypatching by legacypath plugin. + # Can be inlined back (with no cover removed) once legacypath is gone. + def _getini_unknown_type(self, name: str, type: str, value: Union[str, List[str]]): + msg = f"unknown configuration type: {type}" + raise ValueError(msg, value) # pragma: no cover + + def _getini(self, name: str): + try: + description, type, default = self._parser._inidict[name] + except KeyError as e: + raise ValueError(f"unknown configuration value: {name!r}") from e + override_value = self._get_override_ini_value(name) + if override_value is None: + try: + value = self.inicfg[name] + except KeyError: + if default is not None: + return default + if type is None: + return "" + return [] + else: + value = override_value + # Coerce the values based on types. + # + # Note: some coercions are only required if we are reading from .ini files, because + # the file format doesn't contain type information, but when reading from toml we will + # get either str or list of str values (see _parse_ini_config_from_pyproject_toml). + # For example: + # + # ini: + # a_line_list = "tests acceptance" + # in this case, we need to split the string to obtain a list of strings. + # + # toml: + # a_line_list = ["tests", "acceptance"] + # in this case, we already have a list ready to use. + # + if type == "paths": + # TODO: This assert is probably not valid in all cases. + assert self.inipath is not None + dp = self.inipath.parent + input_values = shlex.split(value) if isinstance(value, str) else value + return [dp / x for x in input_values] + elif type == "args": + return shlex.split(value) if isinstance(value, str) else value + elif type == "linelist": + if isinstance(value, str): + return [t for t in map(lambda x: x.strip(), value.split("\n")) if t] + else: + return value + elif type == "bool": + return _strtobool(str(value).strip()) + elif type == "string": + return value + elif type is None: + return value + else: + return self._getini_unknown_type(name, type, value) + + def _getconftest_pathlist( + self, name: str, path: Path, rootpath: Path + ) -> Optional[List[Path]]: + try: + mod, relroots = self.pluginmanager._rget_with_confmod( + name, path, self.getoption("importmode"), rootpath + ) + except KeyError: + return None + assert mod.__file__ is not None + modpath = Path(mod.__file__).parent + values: List[Path] = [] + for relroot in relroots: + if isinstance(relroot, os.PathLike): + relroot = Path(relroot) + else: + relroot = relroot.replace("/", os.sep) + relroot = absolutepath(modpath / relroot) + values.append(relroot) + return values + + def _get_override_ini_value(self, name: str) -> Optional[str]: + value = None + # override_ini is a list of "ini=value" options. + # Always use the last item if multiple values are set for same ini-name, + # e.g. -o foo=bar1 -o foo=bar2 will set foo to bar2. + for ini_config in self._override_ini: + try: + key, user_ini_value = ini_config.split("=", 1) + except ValueError as e: + raise UsageError( + "-o/--override-ini expects option=value style (got: {!r}).".format( + ini_config + ) + ) from e + else: + if key == name: + value = user_ini_value + return value + + def getoption(self, name: str, default=notset, skip: bool = False): + """Return command line option value. + + :param name: Name of the option. You may also specify + the literal ``--OPT`` option instead of the "dest" option name. + :param default: Default value if no option of that name exists. + :param skip: If True, raise pytest.skip if option does not exists + or has a None value. + """ + name = self._opt2dest.get(name, name) + try: + val = getattr(self.option, name) + if val is None and skip: + raise AttributeError(name) + return val + except AttributeError as e: + if default is not notset: + return default + if skip: + import pytest + + pytest.skip(f"no {name!r} option found") + raise ValueError(f"no option named {name!r}") from e + + def getvalue(self, name: str, path=None): + """Deprecated, use getoption() instead.""" + return self.getoption(name) + + def getvalueorskip(self, name: str, path=None): + """Deprecated, use getoption(skip=True) instead.""" + return self.getoption(name, skip=True) + + def _warn_about_missing_assertion(self, mode: str) -> None: + if not _assertion_supported(): + if mode == "plain": + warning_text = ( + "ASSERTIONS ARE NOT EXECUTED" + " and FAILING TESTS WILL PASS. Are you" + " using python -O?" + ) + else: + warning_text = ( + "assertions not in test modules or" + " plugins will be ignored" + " because assert statements are not executed " + "by the underlying Python interpreter " + "(are you using python -O?)\n" + ) + self.issue_config_time_warning( + PytestConfigWarning(warning_text), + stacklevel=3, + ) + + def _warn_about_skipped_plugins(self) -> None: + for module_name, msg in self.pluginmanager.skipped_plugins: + self.issue_config_time_warning( + PytestConfigWarning(f"skipped plugin {module_name!r}: {msg}"), + stacklevel=2, + ) + + +def _assertion_supported() -> bool: + try: + assert False + except AssertionError: + return True + else: + return False # type: ignore[unreachable] + + +def create_terminal_writer( + config: Config, file: Optional[TextIO] = None +) -> TerminalWriter: + """Create a TerminalWriter instance configured according to the options + in the config object. + + Every code which requires a TerminalWriter object and has access to a + config object should use this function. + """ + tw = TerminalWriter(file=file) + + if config.option.color == "yes": + tw.hasmarkup = True + elif config.option.color == "no": + tw.hasmarkup = False + + if config.option.code_highlight == "yes": + tw.code_highlight = True + elif config.option.code_highlight == "no": + tw.code_highlight = False + + return tw + + +def _strtobool(val: str) -> bool: + """Convert a string representation of truth to True or False. + + True values are 'y', 'yes', 't', 'true', 'on', and '1'; false values + are 'n', 'no', 'f', 'false', 'off', and '0'. Raises ValueError if + 'val' is anything else. + + .. note:: Copied from distutils.util. + """ + val = val.lower() + if val in ("y", "yes", "t", "true", "on", "1"): + return True + elif val in ("n", "no", "f", "false", "off", "0"): + return False + else: + raise ValueError(f"invalid truth value {val!r}") + + +@lru_cache(maxsize=50) +def parse_warning_filter( + arg: str, *, escape: bool +) -> Tuple["warnings._ActionKind", str, Type[Warning], str, int]: + """Parse a warnings filter string. + + This is copied from warnings._setoption with the following changes: + + * Does not apply the filter. + * Escaping is optional. + * Raises UsageError so we get nice error messages on failure. + """ + __tracebackhide__ = True + error_template = dedent( + f"""\ + while parsing the following warning configuration: + + {arg} + + This error occurred: + + {{error}} + """ + ) + + parts = arg.split(":") + if len(parts) > 5: + doc_url = ( + "https://docs.python.org/3/library/warnings.html#describing-warning-filters" + ) + error = dedent( + f"""\ + Too many fields ({len(parts)}), expected at most 5 separated by colons: + + action:message:category:module:line + + For more information please consult: {doc_url} + """ + ) + raise UsageError(error_template.format(error=error)) + + while len(parts) < 5: + parts.append("") + action_, message, category_, module, lineno_ = (s.strip() for s in parts) + try: + action: "warnings._ActionKind" = warnings._getaction(action_) # type: ignore[attr-defined] + except warnings._OptionError as e: + raise UsageError(error_template.format(error=str(e))) + try: + category: Type[Warning] = _resolve_warning_category(category_) + except Exception: + exc_info = ExceptionInfo.from_current() + exception_text = exc_info.getrepr(style="native") + raise UsageError(error_template.format(error=exception_text)) + if message and escape: + message = re.escape(message) + if module and escape: + module = re.escape(module) + r"\Z" + if lineno_: + try: + lineno = int(lineno_) + if lineno < 0: + raise ValueError("number is negative") + except ValueError as e: + raise UsageError( + error_template.format(error=f"invalid lineno {lineno_!r}: {e}") + ) + else: + lineno = 0 + return action, message, category, module, lineno + + +def _resolve_warning_category(category: str) -> Type[Warning]: + """ + Copied from warnings._getcategory, but changed so it lets exceptions (specially ImportErrors) + propagate so we can get access to their tracebacks (#9218). + """ + __tracebackhide__ = True + if not category: + return Warning + + if "." not in category: + import builtins as m + + klass = category + else: + module, _, klass = category.rpartition(".") + m = __import__(module, None, None, [klass]) + cat = getattr(m, klass) + if not issubclass(cat, Warning): + raise UsageError(f"{cat} is not a Warning subclass") + return cast(Type[Warning], cat) + + +def apply_warning_filters( + config_filters: Iterable[str], cmdline_filters: Iterable[str] +) -> None: + """Applies pytest-configured filters to the warnings module""" + # Filters should have this precedence: cmdline options, config. + # Filters should be applied in the inverse order of precedence. + for arg in config_filters: + warnings.filterwarnings(*parse_warning_filter(arg, escape=False)) + + for arg in cmdline_filters: + warnings.filterwarnings(*parse_warning_filter(arg, escape=True)) diff --git a/utils/python-venv/Lib/site-packages/_pytest/config/argparsing.py b/utils/python-venv/Lib/site-packages/_pytest/config/argparsing.py new file mode 100644 index 0000000..d3f0191 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/config/argparsing.py @@ -0,0 +1,551 @@ +import argparse +import os +import sys +import warnings +from gettext import gettext +from typing import Any +from typing import Callable +from typing import cast +from typing import Dict +from typing import List +from typing import Mapping +from typing import NoReturn +from typing import Optional +from typing import Sequence +from typing import Tuple +from typing import TYPE_CHECKING +from typing import Union + +import _pytest._io +from _pytest.compat import final +from _pytest.config.exceptions import UsageError +from _pytest.deprecated import ARGUMENT_PERCENT_DEFAULT +from _pytest.deprecated import ARGUMENT_TYPE_STR +from _pytest.deprecated import ARGUMENT_TYPE_STR_CHOICE +from _pytest.deprecated import check_ispytest + +if TYPE_CHECKING: + from typing_extensions import Literal + +FILE_OR_DIR = "file_or_dir" + + +@final +class Parser: + """Parser for command line arguments and ini-file values. + + :ivar extra_info: Dict of generic param -> value to display in case + there's an error processing the command line arguments. + """ + + prog: Optional[str] = None + + def __init__( + self, + usage: Optional[str] = None, + processopt: Optional[Callable[["Argument"], None]] = None, + *, + _ispytest: bool = False, + ) -> None: + check_ispytest(_ispytest) + self._anonymous = OptionGroup("Custom options", parser=self, _ispytest=True) + self._groups: List[OptionGroup] = [] + self._processopt = processopt + self._usage = usage + self._inidict: Dict[str, Tuple[str, Optional[str], Any]] = {} + self._ininames: List[str] = [] + self.extra_info: Dict[str, Any] = {} + + def processoption(self, option: "Argument") -> None: + if self._processopt: + if option.dest: + self._processopt(option) + + def getgroup( + self, name: str, description: str = "", after: Optional[str] = None + ) -> "OptionGroup": + """Get (or create) a named option Group. + + :param name: Name of the option group. + :param description: Long description for --help output. + :param after: Name of another group, used for ordering --help output. + :returns: The option group. + + The returned group object has an ``addoption`` method with the same + signature as :func:`parser.addoption ` but + will be shown in the respective group in the output of + ``pytest --help``. + """ + for group in self._groups: + if group.name == name: + return group + group = OptionGroup(name, description, parser=self, _ispytest=True) + i = 0 + for i, grp in enumerate(self._groups): + if grp.name == after: + break + self._groups.insert(i + 1, group) + return group + + def addoption(self, *opts: str, **attrs: Any) -> None: + """Register a command line option. + + :param opts: + Option names, can be short or long options. + :param attrs: + Same attributes as the argparse library's :py:func:`add_argument() + ` function accepts. + + After command line parsing, options are available on the pytest config + object via ``config.option.NAME`` where ``NAME`` is usually set + by passing a ``dest`` attribute, for example + ``addoption("--long", dest="NAME", ...)``. + """ + self._anonymous.addoption(*opts, **attrs) + + def parse( + self, + args: Sequence[Union[str, "os.PathLike[str]"]], + namespace: Optional[argparse.Namespace] = None, + ) -> argparse.Namespace: + from _pytest._argcomplete import try_argcomplete + + self.optparser = self._getparser() + try_argcomplete(self.optparser) + strargs = [os.fspath(x) for x in args] + return self.optparser.parse_args(strargs, namespace=namespace) + + def _getparser(self) -> "MyOptionParser": + from _pytest._argcomplete import filescompleter + + optparser = MyOptionParser(self, self.extra_info, prog=self.prog) + groups = self._groups + [self._anonymous] + for group in groups: + if group.options: + desc = group.description or group.name + arggroup = optparser.add_argument_group(desc) + for option in group.options: + n = option.names() + a = option.attrs() + arggroup.add_argument(*n, **a) + file_or_dir_arg = optparser.add_argument(FILE_OR_DIR, nargs="*") + # bash like autocompletion for dirs (appending '/') + # Type ignored because typeshed doesn't know about argcomplete. + file_or_dir_arg.completer = filescompleter # type: ignore + return optparser + + def parse_setoption( + self, + args: Sequence[Union[str, "os.PathLike[str]"]], + option: argparse.Namespace, + namespace: Optional[argparse.Namespace] = None, + ) -> List[str]: + parsedoption = self.parse(args, namespace=namespace) + for name, value in parsedoption.__dict__.items(): + setattr(option, name, value) + return cast(List[str], getattr(parsedoption, FILE_OR_DIR)) + + def parse_known_args( + self, + args: Sequence[Union[str, "os.PathLike[str]"]], + namespace: Optional[argparse.Namespace] = None, + ) -> argparse.Namespace: + """Parse the known arguments at this point. + + :returns: An argparse namespace object. + """ + return self.parse_known_and_unknown_args(args, namespace=namespace)[0] + + def parse_known_and_unknown_args( + self, + args: Sequence[Union[str, "os.PathLike[str]"]], + namespace: Optional[argparse.Namespace] = None, + ) -> Tuple[argparse.Namespace, List[str]]: + """Parse the known arguments at this point, and also return the + remaining unknown arguments. + + :returns: + A tuple containing an argparse namespace object for the known + arguments, and a list of the unknown arguments. + """ + optparser = self._getparser() + strargs = [os.fspath(x) for x in args] + return optparser.parse_known_args(strargs, namespace=namespace) + + def addini( + self, + name: str, + help: str, + type: Optional[ + "Literal['string', 'paths', 'pathlist', 'args', 'linelist', 'bool']" + ] = None, + default: Any = None, + ) -> None: + """Register an ini-file option. + + :param name: + Name of the ini-variable. + :param type: + Type of the variable. Can be: + + * ``string``: a string + * ``bool``: a boolean + * ``args``: a list of strings, separated as in a shell + * ``linelist``: a list of strings, separated by line breaks + * ``paths``: a list of :class:`pathlib.Path`, separated as in a shell + * ``pathlist``: a list of ``py.path``, separated as in a shell + + .. versionadded:: 7.0 + The ``paths`` variable type. + + Defaults to ``string`` if ``None`` or not passed. + :param default: + Default value if no ini-file option exists but is queried. + + The value of ini-variables can be retrieved via a call to + :py:func:`config.getini(name) `. + """ + assert type in (None, "string", "paths", "pathlist", "args", "linelist", "bool") + self._inidict[name] = (help, type, default) + self._ininames.append(name) + + +class ArgumentError(Exception): + """Raised if an Argument instance is created with invalid or + inconsistent arguments.""" + + def __init__(self, msg: str, option: Union["Argument", str]) -> None: + self.msg = msg + self.option_id = str(option) + + def __str__(self) -> str: + if self.option_id: + return f"option {self.option_id}: {self.msg}" + else: + return self.msg + + +class Argument: + """Class that mimics the necessary behaviour of optparse.Option. + + It's currently a least effort implementation and ignoring choices + and integer prefixes. + + https://docs.python.org/3/library/optparse.html#optparse-standard-option-types + """ + + _typ_map = {"int": int, "string": str, "float": float, "complex": complex} + + def __init__(self, *names: str, **attrs: Any) -> None: + """Store params in private vars for use in add_argument.""" + self._attrs = attrs + self._short_opts: List[str] = [] + self._long_opts: List[str] = [] + if "%default" in (attrs.get("help") or ""): + warnings.warn(ARGUMENT_PERCENT_DEFAULT, stacklevel=3) + try: + typ = attrs["type"] + except KeyError: + pass + else: + # This might raise a keyerror as well, don't want to catch that. + if isinstance(typ, str): + if typ == "choice": + warnings.warn( + ARGUMENT_TYPE_STR_CHOICE.format(typ=typ, names=names), + stacklevel=4, + ) + # argparse expects a type here take it from + # the type of the first element + attrs["type"] = type(attrs["choices"][0]) + else: + warnings.warn( + ARGUMENT_TYPE_STR.format(typ=typ, names=names), stacklevel=4 + ) + attrs["type"] = Argument._typ_map[typ] + # Used in test_parseopt -> test_parse_defaultgetter. + self.type = attrs["type"] + else: + self.type = typ + try: + # Attribute existence is tested in Config._processopt. + self.default = attrs["default"] + except KeyError: + pass + self._set_opt_strings(names) + dest: Optional[str] = attrs.get("dest") + if dest: + self.dest = dest + elif self._long_opts: + self.dest = self._long_opts[0][2:].replace("-", "_") + else: + try: + self.dest = self._short_opts[0][1:] + except IndexError as e: + self.dest = "???" # Needed for the error repr. + raise ArgumentError("need a long or short option", self) from e + + def names(self) -> List[str]: + return self._short_opts + self._long_opts + + def attrs(self) -> Mapping[str, Any]: + # Update any attributes set by processopt. + attrs = "default dest help".split() + attrs.append(self.dest) + for attr in attrs: + try: + self._attrs[attr] = getattr(self, attr) + except AttributeError: + pass + if self._attrs.get("help"): + a = self._attrs["help"] + a = a.replace("%default", "%(default)s") + # a = a.replace('%prog', '%(prog)s') + self._attrs["help"] = a + return self._attrs + + def _set_opt_strings(self, opts: Sequence[str]) -> None: + """Directly from optparse. + + Might not be necessary as this is passed to argparse later on. + """ + for opt in opts: + if len(opt) < 2: + raise ArgumentError( + "invalid option string %r: " + "must be at least two characters long" % opt, + self, + ) + elif len(opt) == 2: + if not (opt[0] == "-" and opt[1] != "-"): + raise ArgumentError( + "invalid short option string %r: " + "must be of the form -x, (x any non-dash char)" % opt, + self, + ) + self._short_opts.append(opt) + else: + if not (opt[0:2] == "--" and opt[2] != "-"): + raise ArgumentError( + "invalid long option string %r: " + "must start with --, followed by non-dash" % opt, + self, + ) + self._long_opts.append(opt) + + def __repr__(self) -> str: + args: List[str] = [] + if self._short_opts: + args += ["_short_opts: " + repr(self._short_opts)] + if self._long_opts: + args += ["_long_opts: " + repr(self._long_opts)] + args += ["dest: " + repr(self.dest)] + if hasattr(self, "type"): + args += ["type: " + repr(self.type)] + if hasattr(self, "default"): + args += ["default: " + repr(self.default)] + return "Argument({})".format(", ".join(args)) + + +class OptionGroup: + """A group of options shown in its own section.""" + + def __init__( + self, + name: str, + description: str = "", + parser: Optional[Parser] = None, + *, + _ispytest: bool = False, + ) -> None: + check_ispytest(_ispytest) + self.name = name + self.description = description + self.options: List[Argument] = [] + self.parser = parser + + def addoption(self, *opts: str, **attrs: Any) -> None: + """Add an option to this group. + + If a shortened version of a long option is specified, it will + be suppressed in the help. ``addoption('--twowords', '--two-words')`` + results in help showing ``--two-words`` only, but ``--twowords`` gets + accepted **and** the automatic destination is in ``args.twowords``. + + :param opts: + Option names, can be short or long options. + :param attrs: + Same attributes as the argparse library's :py:func:`add_argument() + ` function accepts. + """ + conflict = set(opts).intersection( + name for opt in self.options for name in opt.names() + ) + if conflict: + raise ValueError("option names %s already added" % conflict) + option = Argument(*opts, **attrs) + self._addoption_instance(option, shortupper=False) + + def _addoption(self, *opts: str, **attrs: Any) -> None: + option = Argument(*opts, **attrs) + self._addoption_instance(option, shortupper=True) + + def _addoption_instance(self, option: "Argument", shortupper: bool = False) -> None: + if not shortupper: + for opt in option._short_opts: + if opt[0] == "-" and opt[1].islower(): + raise ValueError("lowercase shortoptions reserved") + if self.parser: + self.parser.processoption(option) + self.options.append(option) + + +class MyOptionParser(argparse.ArgumentParser): + def __init__( + self, + parser: Parser, + extra_info: Optional[Dict[str, Any]] = None, + prog: Optional[str] = None, + ) -> None: + self._parser = parser + super().__init__( + prog=prog, + usage=parser._usage, + add_help=False, + formatter_class=DropShorterLongHelpFormatter, + allow_abbrev=False, + ) + # extra_info is a dict of (param -> value) to display if there's + # an usage error to provide more contextual information to the user. + self.extra_info = extra_info if extra_info else {} + + def error(self, message: str) -> NoReturn: + """Transform argparse error message into UsageError.""" + msg = f"{self.prog}: error: {message}" + + if hasattr(self._parser, "_config_source_hint"): + # Type ignored because the attribute is set dynamically. + msg = f"{msg} ({self._parser._config_source_hint})" # type: ignore + + raise UsageError(self.format_usage() + msg) + + # Type ignored because typeshed has a very complex type in the superclass. + def parse_args( # type: ignore + self, + args: Optional[Sequence[str]] = None, + namespace: Optional[argparse.Namespace] = None, + ) -> argparse.Namespace: + """Allow splitting of positional arguments.""" + parsed, unrecognized = self.parse_known_args(args, namespace) + if unrecognized: + for arg in unrecognized: + if arg and arg[0] == "-": + lines = ["unrecognized arguments: %s" % (" ".join(unrecognized))] + for k, v in sorted(self.extra_info.items()): + lines.append(f" {k}: {v}") + self.error("\n".join(lines)) + getattr(parsed, FILE_OR_DIR).extend(unrecognized) + return parsed + + if sys.version_info[:2] < (3, 9): # pragma: no cover + # Backport of https://github.com/python/cpython/pull/14316 so we can + # disable long --argument abbreviations without breaking short flags. + def _parse_optional( + self, arg_string: str + ) -> Optional[Tuple[Optional[argparse.Action], str, Optional[str]]]: + if not arg_string: + return None + if not arg_string[0] in self.prefix_chars: + return None + if arg_string in self._option_string_actions: + action = self._option_string_actions[arg_string] + return action, arg_string, None + if len(arg_string) == 1: + return None + if "=" in arg_string: + option_string, explicit_arg = arg_string.split("=", 1) + if option_string in self._option_string_actions: + action = self._option_string_actions[option_string] + return action, option_string, explicit_arg + if self.allow_abbrev or not arg_string.startswith("--"): + option_tuples = self._get_option_tuples(arg_string) + if len(option_tuples) > 1: + msg = gettext( + "ambiguous option: %(option)s could match %(matches)s" + ) + options = ", ".join(option for _, option, _ in option_tuples) + self.error(msg % {"option": arg_string, "matches": options}) + elif len(option_tuples) == 1: + (option_tuple,) = option_tuples + return option_tuple + if self._negative_number_matcher.match(arg_string): + if not self._has_negative_number_optionals: + return None + if " " in arg_string: + return None + return None, arg_string, None + + +class DropShorterLongHelpFormatter(argparse.HelpFormatter): + """Shorten help for long options that differ only in extra hyphens. + + - Collapse **long** options that are the same except for extra hyphens. + - Shortcut if there are only two options and one of them is a short one. + - Cache result on the action object as this is called at least 2 times. + """ + + def __init__(self, *args: Any, **kwargs: Any) -> None: + # Use more accurate terminal width. + if "width" not in kwargs: + kwargs["width"] = _pytest._io.get_terminal_width() + super().__init__(*args, **kwargs) + + def _format_action_invocation(self, action: argparse.Action) -> str: + orgstr = super()._format_action_invocation(action) + if orgstr and orgstr[0] != "-": # only optional arguments + return orgstr + res: Optional[str] = getattr(action, "_formatted_action_invocation", None) + if res: + return res + options = orgstr.split(", ") + if len(options) == 2 and (len(options[0]) == 2 or len(options[1]) == 2): + # a shortcut for '-h, --help' or '--abc', '-a' + action._formatted_action_invocation = orgstr # type: ignore + return orgstr + return_list = [] + short_long: Dict[str, str] = {} + for option in options: + if len(option) == 2 or option[2] == " ": + continue + if not option.startswith("--"): + raise ArgumentError( + 'long optional argument without "--": [%s]' % (option), option + ) + xxoption = option[2:] + shortened = xxoption.replace("-", "") + if shortened not in short_long or len(short_long[shortened]) < len( + xxoption + ): + short_long[shortened] = xxoption + # now short_long has been filled out to the longest with dashes + # **and** we keep the right option ordering from add_argument + for option in options: + if len(option) == 2 or option[2] == " ": + return_list.append(option) + if option[2:] == short_long.get(option.replace("-", "")): + return_list.append(option.replace(" ", "=", 1)) + formatted_action_invocation = ", ".join(return_list) + action._formatted_action_invocation = formatted_action_invocation # type: ignore + return formatted_action_invocation + + def _split_lines(self, text, width): + """Wrap lines after splitting on original newlines. + + This allows to have explicit line breaks in the help text. + """ + import textwrap + + lines = [] + for line in text.splitlines(): + lines.extend(textwrap.wrap(line.strip(), width)) + return lines diff --git a/utils/python-venv/Lib/site-packages/_pytest/config/compat.py b/utils/python-venv/Lib/site-packages/_pytest/config/compat.py new file mode 100644 index 0000000..ba267d2 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/config/compat.py @@ -0,0 +1,71 @@ +import functools +import warnings +from pathlib import Path +from typing import Optional + +from ..compat import LEGACY_PATH +from ..compat import legacy_path +from ..deprecated import HOOK_LEGACY_PATH_ARG +from _pytest.nodes import _check_path + +# hookname: (Path, LEGACY_PATH) +imply_paths_hooks = { + "pytest_ignore_collect": ("collection_path", "path"), + "pytest_collect_file": ("file_path", "path"), + "pytest_pycollect_makemodule": ("module_path", "path"), + "pytest_report_header": ("start_path", "startdir"), + "pytest_report_collectionfinish": ("start_path", "startdir"), +} + + +class PathAwareHookProxy: + """ + this helper wraps around hook callers + until pluggy supports fixingcalls, this one will do + + it currently doesn't return full hook caller proxies for fixed hooks, + this may have to be changed later depending on bugs + """ + + def __init__(self, hook_caller): + self.__hook_caller = hook_caller + + def __dir__(self): + return dir(self.__hook_caller) + + def __getattr__(self, key, _wraps=functools.wraps): + hook = getattr(self.__hook_caller, key) + if key not in imply_paths_hooks: + self.__dict__[key] = hook + return hook + else: + path_var, fspath_var = imply_paths_hooks[key] + + @_wraps(hook) + def fixed_hook(**kw): + + path_value: Optional[Path] = kw.pop(path_var, None) + fspath_value: Optional[LEGACY_PATH] = kw.pop(fspath_var, None) + if fspath_value is not None: + warnings.warn( + HOOK_LEGACY_PATH_ARG.format( + pylib_path_arg=fspath_var, pathlib_path_arg=path_var + ), + stacklevel=2, + ) + if path_value is not None: + if fspath_value is not None: + _check_path(path_value, fspath_value) + else: + fspath_value = legacy_path(path_value) + else: + assert fspath_value is not None + path_value = Path(fspath_value) + + kw[path_var] = path_value + kw[fspath_var] = fspath_value + return hook(**kw) + + fixed_hook.__name__ = key + self.__dict__[key] = fixed_hook + return fixed_hook diff --git a/utils/python-venv/Lib/site-packages/_pytest/config/exceptions.py b/utils/python-venv/Lib/site-packages/_pytest/config/exceptions.py new file mode 100644 index 0000000..4f1320e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/config/exceptions.py @@ -0,0 +1,11 @@ +from _pytest.compat import final + + +@final +class UsageError(Exception): + """Error in pytest usage or invocation.""" + + +class PrintHelp(Exception): + """Raised when pytest should print its help to skip the rest of the + argument parsing and validation.""" diff --git a/utils/python-venv/Lib/site-packages/_pytest/config/findpaths.py b/utils/python-venv/Lib/site-packages/_pytest/config/findpaths.py new file mode 100644 index 0000000..43c2367 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/config/findpaths.py @@ -0,0 +1,218 @@ +import os +import sys +from pathlib import Path +from typing import Dict +from typing import Iterable +from typing import List +from typing import Optional +from typing import Sequence +from typing import Tuple +from typing import TYPE_CHECKING +from typing import Union + +import iniconfig + +from .exceptions import UsageError +from _pytest.outcomes import fail +from _pytest.pathlib import absolutepath +from _pytest.pathlib import commonpath + +if TYPE_CHECKING: + from . import Config + + +def _parse_ini_config(path: Path) -> iniconfig.IniConfig: + """Parse the given generic '.ini' file using legacy IniConfig parser, returning + the parsed object. + + Raise UsageError if the file cannot be parsed. + """ + try: + return iniconfig.IniConfig(str(path)) + except iniconfig.ParseError as exc: + raise UsageError(str(exc)) from exc + + +def load_config_dict_from_file( + filepath: Path, +) -> Optional[Dict[str, Union[str, List[str]]]]: + """Load pytest configuration from the given file path, if supported. + + Return None if the file does not contain valid pytest configuration. + """ + + # Configuration from ini files are obtained from the [pytest] section, if present. + if filepath.suffix == ".ini": + iniconfig = _parse_ini_config(filepath) + + if "pytest" in iniconfig: + return dict(iniconfig["pytest"].items()) + else: + # "pytest.ini" files are always the source of configuration, even if empty. + if filepath.name == "pytest.ini": + return {} + + # '.cfg' files are considered if they contain a "[tool:pytest]" section. + elif filepath.suffix == ".cfg": + iniconfig = _parse_ini_config(filepath) + + if "tool:pytest" in iniconfig.sections: + return dict(iniconfig["tool:pytest"].items()) + elif "pytest" in iniconfig.sections: + # If a setup.cfg contains a "[pytest]" section, we raise a failure to indicate users that + # plain "[pytest]" sections in setup.cfg files is no longer supported (#3086). + fail(CFG_PYTEST_SECTION.format(filename="setup.cfg"), pytrace=False) + + # '.toml' files are considered if they contain a [tool.pytest.ini_options] table. + elif filepath.suffix == ".toml": + if sys.version_info >= (3, 11): + import tomllib + else: + import tomli as tomllib + + toml_text = filepath.read_text(encoding="utf-8") + try: + config = tomllib.loads(toml_text) + except tomllib.TOMLDecodeError as exc: + raise UsageError(f"{filepath}: {exc}") from exc + + result = config.get("tool", {}).get("pytest", {}).get("ini_options", None) + if result is not None: + # TOML supports richer data types than ini files (strings, arrays, floats, ints, etc), + # however we need to convert all scalar values to str for compatibility with the rest + # of the configuration system, which expects strings only. + def make_scalar(v: object) -> Union[str, List[str]]: + return v if isinstance(v, list) else str(v) + + return {k: make_scalar(v) for k, v in result.items()} + + return None + + +def locate_config( + args: Iterable[Path], +) -> Tuple[Optional[Path], Optional[Path], Dict[str, Union[str, List[str]]]]: + """Search in the list of arguments for a valid ini-file for pytest, + and return a tuple of (rootdir, inifile, cfg-dict).""" + config_names = [ + "pytest.ini", + ".pytest.ini", + "pyproject.toml", + "tox.ini", + "setup.cfg", + ] + args = [x for x in args if not str(x).startswith("-")] + if not args: + args = [Path.cwd()] + for arg in args: + argpath = absolutepath(arg) + for base in (argpath, *argpath.parents): + for config_name in config_names: + p = base / config_name + if p.is_file(): + ini_config = load_config_dict_from_file(p) + if ini_config is not None: + return base, p, ini_config + return None, None, {} + + +def get_common_ancestor(paths: Iterable[Path]) -> Path: + common_ancestor: Optional[Path] = None + for path in paths: + if not path.exists(): + continue + if common_ancestor is None: + common_ancestor = path + else: + if common_ancestor in path.parents or path == common_ancestor: + continue + elif path in common_ancestor.parents: + common_ancestor = path + else: + shared = commonpath(path, common_ancestor) + if shared is not None: + common_ancestor = shared + if common_ancestor is None: + common_ancestor = Path.cwd() + elif common_ancestor.is_file(): + common_ancestor = common_ancestor.parent + return common_ancestor + + +def get_dirs_from_args(args: Iterable[str]) -> List[Path]: + def is_option(x: str) -> bool: + return x.startswith("-") + + def get_file_part_from_node_id(x: str) -> str: + return x.split("::")[0] + + def get_dir_from_path(path: Path) -> Path: + if path.is_dir(): + return path + return path.parent + + def safe_exists(path: Path) -> bool: + # This can throw on paths that contain characters unrepresentable at the OS level, + # or with invalid syntax on Windows (https://bugs.python.org/issue35306) + try: + return path.exists() + except OSError: + return False + + # These look like paths but may not exist + possible_paths = ( + absolutepath(get_file_part_from_node_id(arg)) + for arg in args + if not is_option(arg) + ) + + return [get_dir_from_path(path) for path in possible_paths if safe_exists(path)] + + +CFG_PYTEST_SECTION = "[pytest] section in {filename} files is no longer supported, change to [tool:pytest] instead." + + +def determine_setup( + inifile: Optional[str], + args: Sequence[str], + rootdir_cmd_arg: Optional[str] = None, + config: Optional["Config"] = None, +) -> Tuple[Path, Optional[Path], Dict[str, Union[str, List[str]]]]: + rootdir = None + dirs = get_dirs_from_args(args) + if inifile: + inipath_ = absolutepath(inifile) + inipath: Optional[Path] = inipath_ + inicfg = load_config_dict_from_file(inipath_) or {} + if rootdir_cmd_arg is None: + rootdir = inipath_.parent + else: + ancestor = get_common_ancestor(dirs) + rootdir, inipath, inicfg = locate_config([ancestor]) + if rootdir is None and rootdir_cmd_arg is None: + for possible_rootdir in (ancestor, *ancestor.parents): + if (possible_rootdir / "setup.py").is_file(): + rootdir = possible_rootdir + break + else: + if dirs != [ancestor]: + rootdir, inipath, inicfg = locate_config(dirs) + if rootdir is None: + if config is not None: + cwd = config.invocation_params.dir + else: + cwd = Path.cwd() + rootdir = get_common_ancestor([cwd, ancestor]) + is_fs_root = os.path.splitdrive(str(rootdir))[1] == "/" + if is_fs_root: + rootdir = ancestor + if rootdir_cmd_arg: + rootdir = absolutepath(os.path.expandvars(rootdir_cmd_arg)) + if not rootdir.is_dir(): + raise UsageError( + "Directory '{}' not found. Check your '--rootdir' option.".format( + rootdir + ) + ) + assert rootdir is not None + return rootdir, inipath, inicfg or {} diff --git a/utils/python-venv/Lib/site-packages/_pytest/debugging.py b/utils/python-venv/Lib/site-packages/_pytest/debugging.py new file mode 100644 index 0000000..a3f8080 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/debugging.py @@ -0,0 +1,391 @@ +"""Interactive debugging with PDB, the Python Debugger.""" +import argparse +import functools +import sys +import types +import unittest +from typing import Any +from typing import Callable +from typing import Generator +from typing import List +from typing import Optional +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import Union + +from _pytest import outcomes +from _pytest._code import ExceptionInfo +from _pytest.config import Config +from _pytest.config import ConftestImportFailure +from _pytest.config import hookimpl +from _pytest.config import PytestPluginManager +from _pytest.config.argparsing import Parser +from _pytest.config.exceptions import UsageError +from _pytest.nodes import Node +from _pytest.reports import BaseReport + +if TYPE_CHECKING: + from _pytest.capture import CaptureManager + from _pytest.runner import CallInfo + + +def _validate_usepdb_cls(value: str) -> Tuple[str, str]: + """Validate syntax of --pdbcls option.""" + try: + modname, classname = value.split(":") + except ValueError as e: + raise argparse.ArgumentTypeError( + f"{value!r} is not in the format 'modname:classname'" + ) from e + return (modname, classname) + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("general") + group._addoption( + "--pdb", + dest="usepdb", + action="store_true", + help="Start the interactive Python debugger on errors or KeyboardInterrupt", + ) + group._addoption( + "--pdbcls", + dest="usepdb_cls", + metavar="modulename:classname", + type=_validate_usepdb_cls, + help="Specify a custom interactive Python debugger for use with --pdb." + "For example: --pdbcls=IPython.terminal.debugger:TerminalPdb", + ) + group._addoption( + "--trace", + dest="trace", + action="store_true", + help="Immediately break when running each test", + ) + + +def pytest_configure(config: Config) -> None: + import pdb + + if config.getvalue("trace"): + config.pluginmanager.register(PdbTrace(), "pdbtrace") + if config.getvalue("usepdb"): + config.pluginmanager.register(PdbInvoke(), "pdbinvoke") + + pytestPDB._saved.append( + (pdb.set_trace, pytestPDB._pluginmanager, pytestPDB._config) + ) + pdb.set_trace = pytestPDB.set_trace + pytestPDB._pluginmanager = config.pluginmanager + pytestPDB._config = config + + # NOTE: not using pytest_unconfigure, since it might get called although + # pytest_configure was not (if another plugin raises UsageError). + def fin() -> None: + ( + pdb.set_trace, + pytestPDB._pluginmanager, + pytestPDB._config, + ) = pytestPDB._saved.pop() + + config.add_cleanup(fin) + + +class pytestPDB: + """Pseudo PDB that defers to the real pdb.""" + + _pluginmanager: Optional[PytestPluginManager] = None + _config: Optional[Config] = None + _saved: List[ + Tuple[Callable[..., None], Optional[PytestPluginManager], Optional[Config]] + ] = [] + _recursive_debug = 0 + _wrapped_pdb_cls: Optional[Tuple[Type[Any], Type[Any]]] = None + + @classmethod + def _is_capturing(cls, capman: Optional["CaptureManager"]) -> Union[str, bool]: + if capman: + return capman.is_capturing() + return False + + @classmethod + def _import_pdb_cls(cls, capman: Optional["CaptureManager"]): + if not cls._config: + import pdb + + # Happens when using pytest.set_trace outside of a test. + return pdb.Pdb + + usepdb_cls = cls._config.getvalue("usepdb_cls") + + if cls._wrapped_pdb_cls and cls._wrapped_pdb_cls[0] == usepdb_cls: + return cls._wrapped_pdb_cls[1] + + if usepdb_cls: + modname, classname = usepdb_cls + + try: + __import__(modname) + mod = sys.modules[modname] + + # Handle --pdbcls=pdb:pdb.Pdb (useful e.g. with pdbpp). + parts = classname.split(".") + pdb_cls = getattr(mod, parts[0]) + for part in parts[1:]: + pdb_cls = getattr(pdb_cls, part) + except Exception as exc: + value = ":".join((modname, classname)) + raise UsageError( + f"--pdbcls: could not import {value!r}: {exc}" + ) from exc + else: + import pdb + + pdb_cls = pdb.Pdb + + wrapped_cls = cls._get_pdb_wrapper_class(pdb_cls, capman) + cls._wrapped_pdb_cls = (usepdb_cls, wrapped_cls) + return wrapped_cls + + @classmethod + def _get_pdb_wrapper_class(cls, pdb_cls, capman: Optional["CaptureManager"]): + import _pytest.config + + # Type ignored because mypy doesn't support "dynamic" + # inheritance like this. + class PytestPdbWrapper(pdb_cls): # type: ignore[valid-type,misc] + _pytest_capman = capman + _continued = False + + def do_debug(self, arg): + cls._recursive_debug += 1 + ret = super().do_debug(arg) + cls._recursive_debug -= 1 + return ret + + def do_continue(self, arg): + ret = super().do_continue(arg) + if cls._recursive_debug == 0: + assert cls._config is not None + tw = _pytest.config.create_terminal_writer(cls._config) + tw.line() + + capman = self._pytest_capman + capturing = pytestPDB._is_capturing(capman) + if capturing: + if capturing == "global": + tw.sep(">", "PDB continue (IO-capturing resumed)") + else: + tw.sep( + ">", + "PDB continue (IO-capturing resumed for %s)" + % capturing, + ) + assert capman is not None + capman.resume() + else: + tw.sep(">", "PDB continue") + assert cls._pluginmanager is not None + cls._pluginmanager.hook.pytest_leave_pdb(config=cls._config, pdb=self) + self._continued = True + return ret + + do_c = do_cont = do_continue + + def do_quit(self, arg): + """Raise Exit outcome when quit command is used in pdb. + + This is a bit of a hack - it would be better if BdbQuit + could be handled, but this would require to wrap the + whole pytest run, and adjust the report etc. + """ + ret = super().do_quit(arg) + + if cls._recursive_debug == 0: + outcomes.exit("Quitting debugger") + + return ret + + do_q = do_quit + do_exit = do_quit + + def setup(self, f, tb): + """Suspend on setup(). + + Needed after do_continue resumed, and entering another + breakpoint again. + """ + ret = super().setup(f, tb) + if not ret and self._continued: + # pdb.setup() returns True if the command wants to exit + # from the interaction: do not suspend capturing then. + if self._pytest_capman: + self._pytest_capman.suspend_global_capture(in_=True) + return ret + + def get_stack(self, f, t): + stack, i = super().get_stack(f, t) + if f is None: + # Find last non-hidden frame. + i = max(0, len(stack) - 1) + while i and stack[i][0].f_locals.get("__tracebackhide__", False): + i -= 1 + return stack, i + + return PytestPdbWrapper + + @classmethod + def _init_pdb(cls, method, *args, **kwargs): + """Initialize PDB debugging, dropping any IO capturing.""" + import _pytest.config + + if cls._pluginmanager is None: + capman: Optional[CaptureManager] = None + else: + capman = cls._pluginmanager.getplugin("capturemanager") + if capman: + capman.suspend(in_=True) + + if cls._config: + tw = _pytest.config.create_terminal_writer(cls._config) + tw.line() + + if cls._recursive_debug == 0: + # Handle header similar to pdb.set_trace in py37+. + header = kwargs.pop("header", None) + if header is not None: + tw.sep(">", header) + else: + capturing = cls._is_capturing(capman) + if capturing == "global": + tw.sep(">", f"PDB {method} (IO-capturing turned off)") + elif capturing: + tw.sep( + ">", + "PDB %s (IO-capturing turned off for %s)" + % (method, capturing), + ) + else: + tw.sep(">", f"PDB {method}") + + _pdb = cls._import_pdb_cls(capman)(**kwargs) + + if cls._pluginmanager: + cls._pluginmanager.hook.pytest_enter_pdb(config=cls._config, pdb=_pdb) + return _pdb + + @classmethod + def set_trace(cls, *args, **kwargs) -> None: + """Invoke debugging via ``Pdb.set_trace``, dropping any IO capturing.""" + frame = sys._getframe().f_back + _pdb = cls._init_pdb("set_trace", *args, **kwargs) + _pdb.set_trace(frame) + + +class PdbInvoke: + def pytest_exception_interact( + self, node: Node, call: "CallInfo[Any]", report: BaseReport + ) -> None: + capman = node.config.pluginmanager.getplugin("capturemanager") + if capman: + capman.suspend_global_capture(in_=True) + out, err = capman.read_global_capture() + sys.stdout.write(out) + sys.stdout.write(err) + assert call.excinfo is not None + + if not isinstance(call.excinfo.value, unittest.SkipTest): + _enter_pdb(node, call.excinfo, report) + + def pytest_internalerror(self, excinfo: ExceptionInfo[BaseException]) -> None: + tb = _postmortem_traceback(excinfo) + post_mortem(tb) + + +class PdbTrace: + @hookimpl(hookwrapper=True) + def pytest_pyfunc_call(self, pyfuncitem) -> Generator[None, None, None]: + wrap_pytest_function_for_tracing(pyfuncitem) + yield + + +def wrap_pytest_function_for_tracing(pyfuncitem): + """Change the Python function object of the given Function item by a + wrapper which actually enters pdb before calling the python function + itself, effectively leaving the user in the pdb prompt in the first + statement of the function.""" + _pdb = pytestPDB._init_pdb("runcall") + testfunction = pyfuncitem.obj + + # we can't just return `partial(pdb.runcall, testfunction)` because (on + # python < 3.7.4) runcall's first param is `func`, which means we'd get + # an exception if one of the kwargs to testfunction was called `func`. + @functools.wraps(testfunction) + def wrapper(*args, **kwargs): + func = functools.partial(testfunction, *args, **kwargs) + _pdb.runcall(func) + + pyfuncitem.obj = wrapper + + +def maybe_wrap_pytest_function_for_tracing(pyfuncitem): + """Wrap the given pytestfunct item for tracing support if --trace was given in + the command line.""" + if pyfuncitem.config.getvalue("trace"): + wrap_pytest_function_for_tracing(pyfuncitem) + + +def _enter_pdb( + node: Node, excinfo: ExceptionInfo[BaseException], rep: BaseReport +) -> BaseReport: + # XXX we re-use the TerminalReporter's terminalwriter + # because this seems to avoid some encoding related troubles + # for not completely clear reasons. + tw = node.config.pluginmanager.getplugin("terminalreporter")._tw + tw.line() + + showcapture = node.config.option.showcapture + + for sectionname, content in ( + ("stdout", rep.capstdout), + ("stderr", rep.capstderr), + ("log", rep.caplog), + ): + if showcapture in (sectionname, "all") and content: + tw.sep(">", "captured " + sectionname) + if content[-1:] == "\n": + content = content[:-1] + tw.line(content) + + tw.sep(">", "traceback") + rep.toterminal(tw) + tw.sep(">", "entering PDB") + tb = _postmortem_traceback(excinfo) + rep._pdbshown = True # type: ignore[attr-defined] + post_mortem(tb) + return rep + + +def _postmortem_traceback(excinfo: ExceptionInfo[BaseException]) -> types.TracebackType: + from doctest import UnexpectedException + + if isinstance(excinfo.value, UnexpectedException): + # A doctest.UnexpectedException is not useful for post_mortem. + # Use the underlying exception instead: + return excinfo.value.exc_info[2] + elif isinstance(excinfo.value, ConftestImportFailure): + # A config.ConftestImportFailure is not useful for post_mortem. + # Use the underlying exception instead: + return excinfo.value.excinfo[2] + else: + assert excinfo._excinfo is not None + return excinfo._excinfo[2] + + +def post_mortem(t: types.TracebackType) -> None: + p = pytestPDB._init_pdb("post_mortem") + p.reset() + p.interaction(None, t) + if p.quitting: + outcomes.exit("Quitting debugger") diff --git a/utils/python-venv/Lib/site-packages/_pytest/deprecated.py b/utils/python-venv/Lib/site-packages/_pytest/deprecated.py new file mode 100644 index 0000000..b9c10df --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/deprecated.py @@ -0,0 +1,146 @@ +"""Deprecation messages and bits of code used elsewhere in the codebase that +is planned to be removed in the next pytest release. + +Keeping it in a central location makes it easy to track what is deprecated and should +be removed when the time comes. + +All constants defined in this module should be either instances of +:class:`PytestWarning`, or :class:`UnformattedWarning` +in case of warnings which need to format their messages. +""" +from warnings import warn + +from _pytest.warning_types import PytestDeprecationWarning +from _pytest.warning_types import PytestRemovedIn8Warning +from _pytest.warning_types import UnformattedWarning + +# set of plugins which have been integrated into the core; we use this list to ignore +# them during registration to avoid conflicts +DEPRECATED_EXTERNAL_PLUGINS = { + "pytest_catchlog", + "pytest_capturelog", + "pytest_faulthandler", +} + +NOSE_SUPPORT = UnformattedWarning( + PytestRemovedIn8Warning, + "Support for nose tests is deprecated and will be removed in a future release.\n" + "{nodeid} is using nose method: `{method}` ({stage})\n" + "See docs: https://docs.pytest.org/en/stable/deprecations.html#support-for-tests-written-for-nose", +) + +NOSE_SUPPORT_METHOD = UnformattedWarning( + PytestRemovedIn8Warning, + "Support for nose tests is deprecated and will be removed in a future release.\n" + "{nodeid} is using nose-specific method: `{method}(self)`\n" + "To remove this warning, rename it to `{method}_method(self)`\n" + "See docs: https://docs.pytest.org/en/stable/deprecations.html#support-for-tests-written-for-nose", +) + + +# This can be* removed pytest 8, but it's harmless and common, so no rush to remove. +# * If you're in the future: "could have been". +YIELD_FIXTURE = PytestDeprecationWarning( + "@pytest.yield_fixture is deprecated.\n" + "Use @pytest.fixture instead; they are the same." +) + +WARNING_CMDLINE_PREPARSE_HOOK = PytestRemovedIn8Warning( + "The pytest_cmdline_preparse hook is deprecated and will be removed in a future release. \n" + "Please use pytest_load_initial_conftests hook instead." +) + +FSCOLLECTOR_GETHOOKPROXY_ISINITPATH = PytestRemovedIn8Warning( + "The gethookproxy() and isinitpath() methods of FSCollector and Package are deprecated; " + "use self.session.gethookproxy() and self.session.isinitpath() instead. " +) + +STRICT_OPTION = PytestRemovedIn8Warning( + "The --strict option is deprecated, use --strict-markers instead." +) + +# This deprecation is never really meant to be removed. +PRIVATE = PytestDeprecationWarning("A private pytest class or function was used.") + +ARGUMENT_PERCENT_DEFAULT = PytestRemovedIn8Warning( + 'pytest now uses argparse. "%default" should be changed to "%(default)s"', +) + +ARGUMENT_TYPE_STR_CHOICE = UnformattedWarning( + PytestRemovedIn8Warning, + "`type` argument to addoption() is the string {typ!r}." + " For choices this is optional and can be omitted, " + " but when supplied should be a type (for example `str` or `int`)." + " (options: {names})", +) + +ARGUMENT_TYPE_STR = UnformattedWarning( + PytestRemovedIn8Warning, + "`type` argument to addoption() is the string {typ!r}, " + " but when supplied should be a type (for example `str` or `int`)." + " (options: {names})", +) + + +HOOK_LEGACY_PATH_ARG = UnformattedWarning( + PytestRemovedIn8Warning, + "The ({pylib_path_arg}: py.path.local) argument is deprecated, please use ({pathlib_path_arg}: pathlib.Path)\n" + "see https://docs.pytest.org/en/latest/deprecations.html" + "#py-path-local-arguments-for-hooks-replaced-with-pathlib-path", +) + +NODE_CTOR_FSPATH_ARG = UnformattedWarning( + PytestRemovedIn8Warning, + "The (fspath: py.path.local) argument to {node_type_name} is deprecated. " + "Please use the (path: pathlib.Path) argument instead.\n" + "See https://docs.pytest.org/en/latest/deprecations.html" + "#fspath-argument-for-node-constructors-replaced-with-pathlib-path", +) + +WARNS_NONE_ARG = PytestRemovedIn8Warning( + "Passing None has been deprecated.\n" + "See https://docs.pytest.org/en/latest/how-to/capture-warnings.html" + "#additional-use-cases-of-warnings-in-tests" + " for alternatives in common use cases." +) + +KEYWORD_MSG_ARG = UnformattedWarning( + PytestRemovedIn8Warning, + "pytest.{func}(msg=...) is now deprecated, use pytest.{func}(reason=...) instead", +) + +INSTANCE_COLLECTOR = PytestRemovedIn8Warning( + "The pytest.Instance collector type is deprecated and is no longer used. " + "See https://docs.pytest.org/en/latest/deprecations.html#the-pytest-instance-collector", +) +HOOK_LEGACY_MARKING = UnformattedWarning( + PytestDeprecationWarning, + "The hook{type} {fullname} uses old-style configuration options (marks or attributes).\n" + "Please use the pytest.hook{type}({hook_opts}) decorator instead\n" + " to configure the hooks.\n" + " See https://docs.pytest.org/en/latest/deprecations.html" + "#configuring-hook-specs-impls-using-markers", +) + +# You want to make some `__init__` or function "private". +# +# def my_private_function(some, args): +# ... +# +# Do this: +# +# def my_private_function(some, args, *, _ispytest: bool = False): +# check_ispytest(_ispytest) +# ... +# +# Change all internal/allowed calls to +# +# my_private_function(some, args, _ispytest=True) +# +# All other calls will get the default _ispytest=False and trigger +# the warning (possibly error in the future). + + +def check_ispytest(ispytest: bool) -> None: + if not ispytest: + warn(PRIVATE, stacklevel=3) diff --git a/utils/python-venv/Lib/site-packages/_pytest/doctest.py b/utils/python-venv/Lib/site-packages/_pytest/doctest.py new file mode 100644 index 0000000..771f089 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/doctest.py @@ -0,0 +1,752 @@ +"""Discover and run doctests in modules and test files.""" +import bdb +import inspect +import os +import platform +import sys +import traceback +import types +import warnings +from contextlib import contextmanager +from pathlib import Path +from typing import Any +from typing import Callable +from typing import Dict +from typing import Generator +from typing import Iterable +from typing import List +from typing import Optional +from typing import Pattern +from typing import Sequence +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import Union + +from _pytest import outcomes +from _pytest._code.code import ExceptionInfo +from _pytest._code.code import ReprFileLocation +from _pytest._code.code import TerminalRepr +from _pytest._io import TerminalWriter +from _pytest.compat import safe_getattr +from _pytest.config import Config +from _pytest.config.argparsing import Parser +from _pytest.fixtures import fixture +from _pytest.fixtures import FixtureRequest +from _pytest.nodes import Collector +from _pytest.nodes import Item +from _pytest.outcomes import OutcomeException +from _pytest.outcomes import skip +from _pytest.pathlib import fnmatch_ex +from _pytest.pathlib import import_path +from _pytest.python import Module +from _pytest.python_api import approx +from _pytest.warning_types import PytestWarning + +if TYPE_CHECKING: + import doctest + +DOCTEST_REPORT_CHOICE_NONE = "none" +DOCTEST_REPORT_CHOICE_CDIFF = "cdiff" +DOCTEST_REPORT_CHOICE_NDIFF = "ndiff" +DOCTEST_REPORT_CHOICE_UDIFF = "udiff" +DOCTEST_REPORT_CHOICE_ONLY_FIRST_FAILURE = "only_first_failure" + +DOCTEST_REPORT_CHOICES = ( + DOCTEST_REPORT_CHOICE_NONE, + DOCTEST_REPORT_CHOICE_CDIFF, + DOCTEST_REPORT_CHOICE_NDIFF, + DOCTEST_REPORT_CHOICE_UDIFF, + DOCTEST_REPORT_CHOICE_ONLY_FIRST_FAILURE, +) + +# Lazy definition of runner class +RUNNER_CLASS = None +# Lazy definition of output checker class +CHECKER_CLASS: Optional[Type["doctest.OutputChecker"]] = None + + +def pytest_addoption(parser: Parser) -> None: + parser.addini( + "doctest_optionflags", + "Option flags for doctests", + type="args", + default=["ELLIPSIS"], + ) + parser.addini( + "doctest_encoding", "Encoding used for doctest files", default="utf-8" + ) + group = parser.getgroup("collect") + group.addoption( + "--doctest-modules", + action="store_true", + default=False, + help="Run doctests in all .py modules", + dest="doctestmodules", + ) + group.addoption( + "--doctest-report", + type=str.lower, + default="udiff", + help="Choose another output format for diffs on doctest failure", + choices=DOCTEST_REPORT_CHOICES, + dest="doctestreport", + ) + group.addoption( + "--doctest-glob", + action="append", + default=[], + metavar="pat", + help="Doctests file matching pattern, default: test*.txt", + dest="doctestglob", + ) + group.addoption( + "--doctest-ignore-import-errors", + action="store_true", + default=False, + help="Ignore doctest ImportErrors", + dest="doctest_ignore_import_errors", + ) + group.addoption( + "--doctest-continue-on-failure", + action="store_true", + default=False, + help="For a given doctest, continue to run after the first failure", + dest="doctest_continue_on_failure", + ) + + +def pytest_unconfigure() -> None: + global RUNNER_CLASS + + RUNNER_CLASS = None + + +def pytest_collect_file( + file_path: Path, + parent: Collector, +) -> Optional[Union["DoctestModule", "DoctestTextfile"]]: + config = parent.config + if file_path.suffix == ".py": + if config.option.doctestmodules and not any( + (_is_setup_py(file_path), _is_main_py(file_path)) + ): + mod: DoctestModule = DoctestModule.from_parent(parent, path=file_path) + return mod + elif _is_doctest(config, file_path, parent): + txt: DoctestTextfile = DoctestTextfile.from_parent(parent, path=file_path) + return txt + return None + + +def _is_setup_py(path: Path) -> bool: + if path.name != "setup.py": + return False + contents = path.read_bytes() + return b"setuptools" in contents or b"distutils" in contents + + +def _is_doctest(config: Config, path: Path, parent: Collector) -> bool: + if path.suffix in (".txt", ".rst") and parent.session.isinitpath(path): + return True + globs = config.getoption("doctestglob") or ["test*.txt"] + return any(fnmatch_ex(glob, path) for glob in globs) + + +def _is_main_py(path: Path) -> bool: + return path.name == "__main__.py" + + +class ReprFailDoctest(TerminalRepr): + def __init__( + self, reprlocation_lines: Sequence[Tuple[ReprFileLocation, Sequence[str]]] + ) -> None: + self.reprlocation_lines = reprlocation_lines + + def toterminal(self, tw: TerminalWriter) -> None: + for reprlocation, lines in self.reprlocation_lines: + for line in lines: + tw.line(line) + reprlocation.toterminal(tw) + + +class MultipleDoctestFailures(Exception): + def __init__(self, failures: Sequence["doctest.DocTestFailure"]) -> None: + super().__init__() + self.failures = failures + + +def _init_runner_class() -> Type["doctest.DocTestRunner"]: + import doctest + + class PytestDoctestRunner(doctest.DebugRunner): + """Runner to collect failures. + + Note that the out variable in this case is a list instead of a + stdout-like object. + """ + + def __init__( + self, + checker: Optional["doctest.OutputChecker"] = None, + verbose: Optional[bool] = None, + optionflags: int = 0, + continue_on_failure: bool = True, + ) -> None: + super().__init__(checker=checker, verbose=verbose, optionflags=optionflags) + self.continue_on_failure = continue_on_failure + + def report_failure( + self, + out, + test: "doctest.DocTest", + example: "doctest.Example", + got: str, + ) -> None: + failure = doctest.DocTestFailure(test, example, got) + if self.continue_on_failure: + out.append(failure) + else: + raise failure + + def report_unexpected_exception( + self, + out, + test: "doctest.DocTest", + example: "doctest.Example", + exc_info: Tuple[Type[BaseException], BaseException, types.TracebackType], + ) -> None: + if isinstance(exc_info[1], OutcomeException): + raise exc_info[1] + if isinstance(exc_info[1], bdb.BdbQuit): + outcomes.exit("Quitting debugger") + failure = doctest.UnexpectedException(test, example, exc_info) + if self.continue_on_failure: + out.append(failure) + else: + raise failure + + return PytestDoctestRunner + + +def _get_runner( + checker: Optional["doctest.OutputChecker"] = None, + verbose: Optional[bool] = None, + optionflags: int = 0, + continue_on_failure: bool = True, +) -> "doctest.DocTestRunner": + # We need this in order to do a lazy import on doctest + global RUNNER_CLASS + if RUNNER_CLASS is None: + RUNNER_CLASS = _init_runner_class() + # Type ignored because the continue_on_failure argument is only defined on + # PytestDoctestRunner, which is lazily defined so can't be used as a type. + return RUNNER_CLASS( # type: ignore + checker=checker, + verbose=verbose, + optionflags=optionflags, + continue_on_failure=continue_on_failure, + ) + + +class DoctestItem(Item): + def __init__( + self, + name: str, + parent: "Union[DoctestTextfile, DoctestModule]", + runner: Optional["doctest.DocTestRunner"] = None, + dtest: Optional["doctest.DocTest"] = None, + ) -> None: + super().__init__(name, parent) + self.runner = runner + self.dtest = dtest + self.obj = None + self.fixture_request: Optional[FixtureRequest] = None + + @classmethod + def from_parent( # type: ignore + cls, + parent: "Union[DoctestTextfile, DoctestModule]", + *, + name: str, + runner: "doctest.DocTestRunner", + dtest: "doctest.DocTest", + ): + # incompatible signature due to imposed limits on subclass + """The public named constructor.""" + return super().from_parent(name=name, parent=parent, runner=runner, dtest=dtest) + + def setup(self) -> None: + if self.dtest is not None: + self.fixture_request = _setup_fixtures(self) + globs = dict(getfixture=self.fixture_request.getfixturevalue) + for name, value in self.fixture_request.getfixturevalue( + "doctest_namespace" + ).items(): + globs[name] = value + self.dtest.globs.update(globs) + + def runtest(self) -> None: + assert self.dtest is not None + assert self.runner is not None + _check_all_skipped(self.dtest) + self._disable_output_capturing_for_darwin() + failures: List["doctest.DocTestFailure"] = [] + # Type ignored because we change the type of `out` from what + # doctest expects. + self.runner.run(self.dtest, out=failures) # type: ignore[arg-type] + if failures: + raise MultipleDoctestFailures(failures) + + def _disable_output_capturing_for_darwin(self) -> None: + """Disable output capturing. Otherwise, stdout is lost to doctest (#985).""" + if platform.system() != "Darwin": + return + capman = self.config.pluginmanager.getplugin("capturemanager") + if capman: + capman.suspend_global_capture(in_=True) + out, err = capman.read_global_capture() + sys.stdout.write(out) + sys.stderr.write(err) + + # TODO: Type ignored -- breaks Liskov Substitution. + def repr_failure( # type: ignore[override] + self, + excinfo: ExceptionInfo[BaseException], + ) -> Union[str, TerminalRepr]: + import doctest + + failures: Optional[ + Sequence[Union[doctest.DocTestFailure, doctest.UnexpectedException]] + ] = None + if isinstance( + excinfo.value, (doctest.DocTestFailure, doctest.UnexpectedException) + ): + failures = [excinfo.value] + elif isinstance(excinfo.value, MultipleDoctestFailures): + failures = excinfo.value.failures + + if failures is None: + return super().repr_failure(excinfo) + + reprlocation_lines = [] + for failure in failures: + example = failure.example + test = failure.test + filename = test.filename + if test.lineno is None: + lineno = None + else: + lineno = test.lineno + example.lineno + 1 + message = type(failure).__name__ + # TODO: ReprFileLocation doesn't expect a None lineno. + reprlocation = ReprFileLocation(filename, lineno, message) # type: ignore[arg-type] + checker = _get_checker() + report_choice = _get_report_choice(self.config.getoption("doctestreport")) + if lineno is not None: + assert failure.test.docstring is not None + lines = failure.test.docstring.splitlines(False) + # add line numbers to the left of the error message + assert test.lineno is not None + lines = [ + "%03d %s" % (i + test.lineno + 1, x) for (i, x) in enumerate(lines) + ] + # trim docstring error lines to 10 + lines = lines[max(example.lineno - 9, 0) : example.lineno + 1] + else: + lines = [ + "EXAMPLE LOCATION UNKNOWN, not showing all tests of that example" + ] + indent = ">>>" + for line in example.source.splitlines(): + lines.append(f"??? {indent} {line}") + indent = "..." + if isinstance(failure, doctest.DocTestFailure): + lines += checker.output_difference( + example, failure.got, report_choice + ).split("\n") + else: + inner_excinfo = ExceptionInfo.from_exc_info(failure.exc_info) + lines += ["UNEXPECTED EXCEPTION: %s" % repr(inner_excinfo.value)] + lines += [ + x.strip("\n") for x in traceback.format_exception(*failure.exc_info) + ] + reprlocation_lines.append((reprlocation, lines)) + return ReprFailDoctest(reprlocation_lines) + + def reportinfo(self) -> Tuple[Union["os.PathLike[str]", str], Optional[int], str]: + assert self.dtest is not None + return self.path, self.dtest.lineno, "[doctest] %s" % self.name + + +def _get_flag_lookup() -> Dict[str, int]: + import doctest + + return dict( + DONT_ACCEPT_TRUE_FOR_1=doctest.DONT_ACCEPT_TRUE_FOR_1, + DONT_ACCEPT_BLANKLINE=doctest.DONT_ACCEPT_BLANKLINE, + NORMALIZE_WHITESPACE=doctest.NORMALIZE_WHITESPACE, + ELLIPSIS=doctest.ELLIPSIS, + IGNORE_EXCEPTION_DETAIL=doctest.IGNORE_EXCEPTION_DETAIL, + COMPARISON_FLAGS=doctest.COMPARISON_FLAGS, + ALLOW_UNICODE=_get_allow_unicode_flag(), + ALLOW_BYTES=_get_allow_bytes_flag(), + NUMBER=_get_number_flag(), + ) + + +def get_optionflags(parent): + optionflags_str = parent.config.getini("doctest_optionflags") + flag_lookup_table = _get_flag_lookup() + flag_acc = 0 + for flag in optionflags_str: + flag_acc |= flag_lookup_table[flag] + return flag_acc + + +def _get_continue_on_failure(config): + continue_on_failure = config.getvalue("doctest_continue_on_failure") + if continue_on_failure: + # We need to turn off this if we use pdb since we should stop at + # the first failure. + if config.getvalue("usepdb"): + continue_on_failure = False + return continue_on_failure + + +class DoctestTextfile(Module): + obj = None + + def collect(self) -> Iterable[DoctestItem]: + import doctest + + # Inspired by doctest.testfile; ideally we would use it directly, + # but it doesn't support passing a custom checker. + encoding = self.config.getini("doctest_encoding") + text = self.path.read_text(encoding) + filename = str(self.path) + name = self.path.name + globs = {"__name__": "__main__"} + + optionflags = get_optionflags(self) + + runner = _get_runner( + verbose=False, + optionflags=optionflags, + checker=_get_checker(), + continue_on_failure=_get_continue_on_failure(self.config), + ) + + parser = doctest.DocTestParser() + test = parser.get_doctest(text, globs, name, filename, 0) + if test.examples: + yield DoctestItem.from_parent( + self, name=test.name, runner=runner, dtest=test + ) + + +def _check_all_skipped(test: "doctest.DocTest") -> None: + """Raise pytest.skip() if all examples in the given DocTest have the SKIP + option set.""" + import doctest + + all_skipped = all(x.options.get(doctest.SKIP, False) for x in test.examples) + if all_skipped: + skip("all tests skipped by +SKIP option") + + +def _is_mocked(obj: object) -> bool: + """Return if an object is possibly a mock object by checking the + existence of a highly improbable attribute.""" + return ( + safe_getattr(obj, "pytest_mock_example_attribute_that_shouldnt_exist", None) + is not None + ) + + +@contextmanager +def _patch_unwrap_mock_aware() -> Generator[None, None, None]: + """Context manager which replaces ``inspect.unwrap`` with a version + that's aware of mock objects and doesn't recurse into them.""" + real_unwrap = inspect.unwrap + + def _mock_aware_unwrap( + func: Callable[..., Any], *, stop: Optional[Callable[[Any], Any]] = None + ) -> Any: + try: + if stop is None or stop is _is_mocked: + return real_unwrap(func, stop=_is_mocked) + _stop = stop + return real_unwrap(func, stop=lambda obj: _is_mocked(obj) or _stop(func)) + except Exception as e: + warnings.warn( + "Got %r when unwrapping %r. This is usually caused " + "by a violation of Python's object protocol; see e.g. " + "https://github.com/pytest-dev/pytest/issues/5080" % (e, func), + PytestWarning, + ) + raise + + inspect.unwrap = _mock_aware_unwrap + try: + yield + finally: + inspect.unwrap = real_unwrap + + +class DoctestModule(Module): + def collect(self) -> Iterable[DoctestItem]: + import doctest + + class MockAwareDocTestFinder(doctest.DocTestFinder): + """A hackish doctest finder that overrides stdlib internals to fix a stdlib bug. + + https://github.com/pytest-dev/pytest/issues/3456 + https://bugs.python.org/issue25532 + """ + + def _find_lineno(self, obj, source_lines): + """Doctest code does not take into account `@property`, this + is a hackish way to fix it. https://bugs.python.org/issue17446 + + Wrapped Doctests will need to be unwrapped so the correct + line number is returned. This will be reported upstream. #8796 + """ + if isinstance(obj, property): + obj = getattr(obj, "fget", obj) + + if hasattr(obj, "__wrapped__"): + # Get the main obj in case of it being wrapped + obj = inspect.unwrap(obj) + + # Type ignored because this is a private function. + return super()._find_lineno( # type:ignore[misc] + obj, + source_lines, + ) + + def _find( + self, tests, obj, name, module, source_lines, globs, seen + ) -> None: + if _is_mocked(obj): + return + with _patch_unwrap_mock_aware(): + + # Type ignored because this is a private function. + super()._find( # type:ignore[misc] + tests, obj, name, module, source_lines, globs, seen + ) + + if self.path.name == "conftest.py": + module = self.config.pluginmanager._importconftest( + self.path, + self.config.getoption("importmode"), + rootpath=self.config.rootpath, + ) + else: + try: + module = import_path( + self.path, + root=self.config.rootpath, + mode=self.config.getoption("importmode"), + ) + except ImportError: + if self.config.getvalue("doctest_ignore_import_errors"): + skip("unable to import module %r" % self.path) + else: + raise + # Uses internal doctest module parsing mechanism. + finder = MockAwareDocTestFinder() + optionflags = get_optionflags(self) + runner = _get_runner( + verbose=False, + optionflags=optionflags, + checker=_get_checker(), + continue_on_failure=_get_continue_on_failure(self.config), + ) + + for test in finder.find(module, module.__name__): + if test.examples: # skip empty doctests + yield DoctestItem.from_parent( + self, name=test.name, runner=runner, dtest=test + ) + + +def _setup_fixtures(doctest_item: DoctestItem) -> FixtureRequest: + """Used by DoctestTextfile and DoctestItem to setup fixture information.""" + + def func() -> None: + pass + + doctest_item.funcargs = {} # type: ignore[attr-defined] + fm = doctest_item.session._fixturemanager + doctest_item._fixtureinfo = fm.getfixtureinfo( # type: ignore[attr-defined] + node=doctest_item, func=func, cls=None, funcargs=False + ) + fixture_request = FixtureRequest(doctest_item, _ispytest=True) + fixture_request._fillfixtures() + return fixture_request + + +def _init_checker_class() -> Type["doctest.OutputChecker"]: + import doctest + import re + + class LiteralsOutputChecker(doctest.OutputChecker): + # Based on doctest_nose_plugin.py from the nltk project + # (https://github.com/nltk/nltk) and on the "numtest" doctest extension + # by Sebastien Boisgerault (https://github.com/boisgera/numtest). + + _unicode_literal_re = re.compile(r"(\W|^)[uU]([rR]?[\'\"])", re.UNICODE) + _bytes_literal_re = re.compile(r"(\W|^)[bB]([rR]?[\'\"])", re.UNICODE) + _number_re = re.compile( + r""" + (?P + (?P + (?P [+-]?\d*)\.(?P\d+) + | + (?P [+-]?\d+)\. + ) + (?: + [Ee] + (?P [+-]?\d+) + )? + | + (?P [+-]?\d+) + (?: + [Ee] + (?P [+-]?\d+) + ) + ) + """, + re.VERBOSE, + ) + + def check_output(self, want: str, got: str, optionflags: int) -> bool: + if super().check_output(want, got, optionflags): + return True + + allow_unicode = optionflags & _get_allow_unicode_flag() + allow_bytes = optionflags & _get_allow_bytes_flag() + allow_number = optionflags & _get_number_flag() + + if not allow_unicode and not allow_bytes and not allow_number: + return False + + def remove_prefixes(regex: Pattern[str], txt: str) -> str: + return re.sub(regex, r"\1\2", txt) + + if allow_unicode: + want = remove_prefixes(self._unicode_literal_re, want) + got = remove_prefixes(self._unicode_literal_re, got) + + if allow_bytes: + want = remove_prefixes(self._bytes_literal_re, want) + got = remove_prefixes(self._bytes_literal_re, got) + + if allow_number: + got = self._remove_unwanted_precision(want, got) + + return super().check_output(want, got, optionflags) + + def _remove_unwanted_precision(self, want: str, got: str) -> str: + wants = list(self._number_re.finditer(want)) + gots = list(self._number_re.finditer(got)) + if len(wants) != len(gots): + return got + offset = 0 + for w, g in zip(wants, gots): + fraction: Optional[str] = w.group("fraction") + exponent: Optional[str] = w.group("exponent1") + if exponent is None: + exponent = w.group("exponent2") + precision = 0 if fraction is None else len(fraction) + if exponent is not None: + precision -= int(exponent) + if float(w.group()) == approx(float(g.group()), abs=10**-precision): + # They're close enough. Replace the text we actually + # got with the text we want, so that it will match when we + # check the string literally. + got = ( + got[: g.start() + offset] + w.group() + got[g.end() + offset :] + ) + offset += w.end() - w.start() - (g.end() - g.start()) + return got + + return LiteralsOutputChecker + + +def _get_checker() -> "doctest.OutputChecker": + """Return a doctest.OutputChecker subclass that supports some + additional options: + + * ALLOW_UNICODE and ALLOW_BYTES options to ignore u'' and b'' + prefixes (respectively) in string literals. Useful when the same + doctest should run in Python 2 and Python 3. + + * NUMBER to ignore floating-point differences smaller than the + precision of the literal number in the doctest. + + An inner class is used to avoid importing "doctest" at the module + level. + """ + global CHECKER_CLASS + if CHECKER_CLASS is None: + CHECKER_CLASS = _init_checker_class() + return CHECKER_CLASS() + + +def _get_allow_unicode_flag() -> int: + """Register and return the ALLOW_UNICODE flag.""" + import doctest + + return doctest.register_optionflag("ALLOW_UNICODE") + + +def _get_allow_bytes_flag() -> int: + """Register and return the ALLOW_BYTES flag.""" + import doctest + + return doctest.register_optionflag("ALLOW_BYTES") + + +def _get_number_flag() -> int: + """Register and return the NUMBER flag.""" + import doctest + + return doctest.register_optionflag("NUMBER") + + +def _get_report_choice(key: str) -> int: + """Return the actual `doctest` module flag value. + + We want to do it as late as possible to avoid importing `doctest` and all + its dependencies when parsing options, as it adds overhead and breaks tests. + """ + import doctest + + return { + DOCTEST_REPORT_CHOICE_UDIFF: doctest.REPORT_UDIFF, + DOCTEST_REPORT_CHOICE_CDIFF: doctest.REPORT_CDIFF, + DOCTEST_REPORT_CHOICE_NDIFF: doctest.REPORT_NDIFF, + DOCTEST_REPORT_CHOICE_ONLY_FIRST_FAILURE: doctest.REPORT_ONLY_FIRST_FAILURE, + DOCTEST_REPORT_CHOICE_NONE: 0, + }[key] + + +@fixture(scope="session") +def doctest_namespace() -> Dict[str, Any]: + """Fixture that returns a :py:class:`dict` that will be injected into the + namespace of doctests. + + Usually this fixture is used in conjunction with another ``autouse`` fixture: + + .. code-block:: python + + @pytest.fixture(autouse=True) + def add_np(doctest_namespace): + doctest_namespace["np"] = numpy + + For more details: :ref:`doctest_namespace`. + """ + return dict() diff --git a/utils/python-venv/Lib/site-packages/_pytest/faulthandler.py b/utils/python-venv/Lib/site-packages/_pytest/faulthandler.py new file mode 100644 index 0000000..b9c9255 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/faulthandler.py @@ -0,0 +1,97 @@ +import io +import os +import sys +from typing import Generator +from typing import TextIO + +import pytest +from _pytest.config import Config +from _pytest.config.argparsing import Parser +from _pytest.nodes import Item +from _pytest.stash import StashKey + + +fault_handler_stderr_key = StashKey[TextIO]() +fault_handler_originally_enabled_key = StashKey[bool]() + + +def pytest_addoption(parser: Parser) -> None: + help = ( + "Dump the traceback of all threads if a test takes " + "more than TIMEOUT seconds to finish" + ) + parser.addini("faulthandler_timeout", help, default=0.0) + + +def pytest_configure(config: Config) -> None: + import faulthandler + + stderr_fd_copy = os.dup(get_stderr_fileno()) + config.stash[fault_handler_stderr_key] = open(stderr_fd_copy, "w") + config.stash[fault_handler_originally_enabled_key] = faulthandler.is_enabled() + faulthandler.enable(file=config.stash[fault_handler_stderr_key]) + + +def pytest_unconfigure(config: Config) -> None: + import faulthandler + + faulthandler.disable() + # Close the dup file installed during pytest_configure. + if fault_handler_stderr_key in config.stash: + config.stash[fault_handler_stderr_key].close() + del config.stash[fault_handler_stderr_key] + if config.stash.get(fault_handler_originally_enabled_key, False): + # Re-enable the faulthandler if it was originally enabled. + faulthandler.enable(file=get_stderr_fileno()) + + +def get_stderr_fileno() -> int: + try: + fileno = sys.stderr.fileno() + # The Twisted Logger will return an invalid file descriptor since it is not backed + # by an FD. So, let's also forward this to the same code path as with pytest-xdist. + if fileno == -1: + raise AttributeError() + return fileno + except (AttributeError, io.UnsupportedOperation): + # pytest-xdist monkeypatches sys.stderr with an object that is not an actual file. + # https://docs.python.org/3/library/faulthandler.html#issue-with-file-descriptors + # This is potentially dangerous, but the best we can do. + return sys.__stderr__.fileno() + + +def get_timeout_config_value(config: Config) -> float: + return float(config.getini("faulthandler_timeout") or 0.0) + + +@pytest.hookimpl(hookwrapper=True, trylast=True) +def pytest_runtest_protocol(item: Item) -> Generator[None, None, None]: + timeout = get_timeout_config_value(item.config) + stderr = item.config.stash[fault_handler_stderr_key] + if timeout > 0 and stderr is not None: + import faulthandler + + faulthandler.dump_traceback_later(timeout, file=stderr) + try: + yield + finally: + faulthandler.cancel_dump_traceback_later() + else: + yield + + +@pytest.hookimpl(tryfirst=True) +def pytest_enter_pdb() -> None: + """Cancel any traceback dumping due to timeout before entering pdb.""" + import faulthandler + + faulthandler.cancel_dump_traceback_later() + + +@pytest.hookimpl(tryfirst=True) +def pytest_exception_interact() -> None: + """Cancel any traceback dumping due to an interactive exception being + raised.""" + import faulthandler + + faulthandler.cancel_dump_traceback_later() diff --git a/utils/python-venv/Lib/site-packages/_pytest/fixtures.py b/utils/python-venv/Lib/site-packages/_pytest/fixtures.py new file mode 100644 index 0000000..d79895c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/fixtures.py @@ -0,0 +1,1672 @@ +import functools +import inspect +import os +import sys +import warnings +from collections import defaultdict +from collections import deque +from contextlib import suppress +from pathlib import Path +from types import TracebackType +from typing import Any +from typing import Callable +from typing import cast +from typing import Dict +from typing import Generator +from typing import Generic +from typing import Iterable +from typing import Iterator +from typing import List +from typing import MutableMapping +from typing import NoReturn +from typing import Optional +from typing import Sequence +from typing import Set +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import TypeVar +from typing import Union + +import attr + +import _pytest +from _pytest import nodes +from _pytest._code import getfslineno +from _pytest._code.code import FormattedExcinfo +from _pytest._code.code import TerminalRepr +from _pytest._io import TerminalWriter +from _pytest.compat import _format_args +from _pytest.compat import _PytestWrapper +from _pytest.compat import assert_never +from _pytest.compat import final +from _pytest.compat import get_real_func +from _pytest.compat import get_real_method +from _pytest.compat import getfuncargnames +from _pytest.compat import getimfunc +from _pytest.compat import getlocation +from _pytest.compat import is_generator +from _pytest.compat import NOTSET +from _pytest.compat import overload +from _pytest.compat import safe_getattr +from _pytest.config import _PluggyPlugin +from _pytest.config import Config +from _pytest.config.argparsing import Parser +from _pytest.deprecated import check_ispytest +from _pytest.deprecated import YIELD_FIXTURE +from _pytest.mark import Mark +from _pytest.mark import ParameterSet +from _pytest.mark.structures import MarkDecorator +from _pytest.outcomes import fail +from _pytest.outcomes import TEST_OUTCOME +from _pytest.pathlib import absolutepath +from _pytest.pathlib import bestrelpath +from _pytest.scope import HIGH_SCOPES +from _pytest.scope import Scope +from _pytest.stash import StashKey + + +if TYPE_CHECKING: + from typing import Deque + + from _pytest.scope import _ScopeName + from _pytest.main import Session + from _pytest.python import CallSpec2 + from _pytest.python import Metafunc + + +# The value of the fixture -- return/yield of the fixture function (type variable). +FixtureValue = TypeVar("FixtureValue") +# The type of the fixture function (type variable). +FixtureFunction = TypeVar("FixtureFunction", bound=Callable[..., object]) +# The type of a fixture function (type alias generic in fixture value). +_FixtureFunc = Union[ + Callable[..., FixtureValue], Callable[..., Generator[FixtureValue, None, None]] +] +# The type of FixtureDef.cached_result (type alias generic in fixture value). +_FixtureCachedResult = Union[ + Tuple[ + # The result. + FixtureValue, + # Cache key. + object, + None, + ], + Tuple[ + None, + # Cache key. + object, + # Exc info if raised. + Tuple[Type[BaseException], BaseException, TracebackType], + ], +] + + +@attr.s(frozen=True, auto_attribs=True) +class PseudoFixtureDef(Generic[FixtureValue]): + cached_result: "_FixtureCachedResult[FixtureValue]" + _scope: Scope + + +def pytest_sessionstart(session: "Session") -> None: + session._fixturemanager = FixtureManager(session) + + +def get_scope_package(node, fixturedef: "FixtureDef[object]"): + import pytest + + cls = pytest.Package + current = node + fixture_package_name = "{}/{}".format(fixturedef.baseid, "__init__.py") + while current and ( + type(current) is not cls or fixture_package_name != current.nodeid + ): + current = current.parent + if current is None: + return node.session + return current + + +def get_scope_node( + node: nodes.Node, scope: Scope +) -> Optional[Union[nodes.Item, nodes.Collector]]: + import _pytest.python + + if scope is Scope.Function: + return node.getparent(nodes.Item) + elif scope is Scope.Class: + return node.getparent(_pytest.python.Class) + elif scope is Scope.Module: + return node.getparent(_pytest.python.Module) + elif scope is Scope.Package: + return node.getparent(_pytest.python.Package) + elif scope is Scope.Session: + return node.getparent(_pytest.main.Session) + else: + assert_never(scope) + + +# Used for storing artificial fixturedefs for direct parametrization. +name2pseudofixturedef_key = StashKey[Dict[str, "FixtureDef[Any]"]]() + + +def add_funcarg_pseudo_fixture_def( + collector: nodes.Collector, metafunc: "Metafunc", fixturemanager: "FixtureManager" +) -> None: + # This function will transform all collected calls to functions + # if they use direct funcargs (i.e. direct parametrization) + # because we want later test execution to be able to rely on + # an existing FixtureDef structure for all arguments. + # XXX we can probably avoid this algorithm if we modify CallSpec2 + # to directly care for creating the fixturedefs within its methods. + if not metafunc._calls[0].funcargs: + # This function call does not have direct parametrization. + return + # Collect funcargs of all callspecs into a list of values. + arg2params: Dict[str, List[object]] = {} + arg2scope: Dict[str, Scope] = {} + for callspec in metafunc._calls: + for argname, argvalue in callspec.funcargs.items(): + assert argname not in callspec.params + callspec.params[argname] = argvalue + arg2params_list = arg2params.setdefault(argname, []) + callspec.indices[argname] = len(arg2params_list) + arg2params_list.append(argvalue) + if argname not in arg2scope: + scope = callspec._arg2scope.get(argname, Scope.Function) + arg2scope[argname] = scope + callspec.funcargs.clear() + + # Register artificial FixtureDef's so that later at test execution + # time we can rely on a proper FixtureDef to exist for fixture setup. + arg2fixturedefs = metafunc._arg2fixturedefs + for argname, valuelist in arg2params.items(): + # If we have a scope that is higher than function, we need + # to make sure we only ever create an according fixturedef on + # a per-scope basis. We thus store and cache the fixturedef on the + # node related to the scope. + scope = arg2scope[argname] + node = None + if scope is not Scope.Function: + node = get_scope_node(collector, scope) + if node is None: + assert scope is Scope.Class and isinstance( + collector, _pytest.python.Module + ) + # Use module-level collector for class-scope (for now). + node = collector + if node is None: + name2pseudofixturedef = None + else: + default: Dict[str, FixtureDef[Any]] = {} + name2pseudofixturedef = node.stash.setdefault( + name2pseudofixturedef_key, default + ) + if name2pseudofixturedef is not None and argname in name2pseudofixturedef: + arg2fixturedefs[argname] = [name2pseudofixturedef[argname]] + else: + fixturedef = FixtureDef( + fixturemanager=fixturemanager, + baseid="", + argname=argname, + func=get_direct_param_fixture_func, + scope=arg2scope[argname], + params=valuelist, + unittest=False, + ids=None, + ) + arg2fixturedefs[argname] = [fixturedef] + if name2pseudofixturedef is not None: + name2pseudofixturedef[argname] = fixturedef + + +def getfixturemarker(obj: object) -> Optional["FixtureFunctionMarker"]: + """Return fixturemarker or None if it doesn't exist or raised + exceptions.""" + return cast( + Optional[FixtureFunctionMarker], + safe_getattr(obj, "_pytestfixturefunction", None), + ) + + +# Parametrized fixture key, helper alias for code below. +_Key = Tuple[object, ...] + + +def get_parametrized_fixture_keys(item: nodes.Item, scope: Scope) -> Iterator[_Key]: + """Return list of keys for all parametrized arguments which match + the specified scope.""" + assert scope is not Scope.Function + try: + callspec = item.callspec # type: ignore[attr-defined] + except AttributeError: + pass + else: + cs: CallSpec2 = callspec + # cs.indices.items() is random order of argnames. Need to + # sort this so that different calls to + # get_parametrized_fixture_keys will be deterministic. + for argname, param_index in sorted(cs.indices.items()): + if cs._arg2scope[argname] != scope: + continue + if scope is Scope.Session: + key: _Key = (argname, param_index) + elif scope is Scope.Package: + key = (argname, param_index, item.path.parent) + elif scope is Scope.Module: + key = (argname, param_index, item.path) + elif scope is Scope.Class: + item_cls = item.cls # type: ignore[attr-defined] + key = (argname, param_index, item.path, item_cls) + else: + assert_never(scope) + yield key + + +# Algorithm for sorting on a per-parametrized resource setup basis. +# It is called for Session scope first and performs sorting +# down to the lower scopes such as to minimize number of "high scope" +# setups and teardowns. + + +def reorder_items(items: Sequence[nodes.Item]) -> List[nodes.Item]: + argkeys_cache: Dict[Scope, Dict[nodes.Item, Dict[_Key, None]]] = {} + items_by_argkey: Dict[Scope, Dict[_Key, Deque[nodes.Item]]] = {} + for scope in HIGH_SCOPES: + d: Dict[nodes.Item, Dict[_Key, None]] = {} + argkeys_cache[scope] = d + item_d: Dict[_Key, Deque[nodes.Item]] = defaultdict(deque) + items_by_argkey[scope] = item_d + for item in items: + keys = dict.fromkeys(get_parametrized_fixture_keys(item, scope), None) + if keys: + d[item] = keys + for key in keys: + item_d[key].append(item) + items_dict = dict.fromkeys(items, None) + return list( + reorder_items_atscope(items_dict, argkeys_cache, items_by_argkey, Scope.Session) + ) + + +def fix_cache_order( + item: nodes.Item, + argkeys_cache: Dict[Scope, Dict[nodes.Item, Dict[_Key, None]]], + items_by_argkey: Dict[Scope, Dict[_Key, "Deque[nodes.Item]"]], +) -> None: + for scope in HIGH_SCOPES: + for key in argkeys_cache[scope].get(item, []): + items_by_argkey[scope][key].appendleft(item) + + +def reorder_items_atscope( + items: Dict[nodes.Item, None], + argkeys_cache: Dict[Scope, Dict[nodes.Item, Dict[_Key, None]]], + items_by_argkey: Dict[Scope, Dict[_Key, "Deque[nodes.Item]"]], + scope: Scope, +) -> Dict[nodes.Item, None]: + if scope is Scope.Function or len(items) < 3: + return items + ignore: Set[Optional[_Key]] = set() + items_deque = deque(items) + items_done: Dict[nodes.Item, None] = {} + scoped_items_by_argkey = items_by_argkey[scope] + scoped_argkeys_cache = argkeys_cache[scope] + while items_deque: + no_argkey_group: Dict[nodes.Item, None] = {} + slicing_argkey = None + while items_deque: + item = items_deque.popleft() + if item in items_done or item in no_argkey_group: + continue + argkeys = dict.fromkeys( + (k for k in scoped_argkeys_cache.get(item, []) if k not in ignore), None + ) + if not argkeys: + no_argkey_group[item] = None + else: + slicing_argkey, _ = argkeys.popitem() + # We don't have to remove relevant items from later in the + # deque because they'll just be ignored. + matching_items = [ + i for i in scoped_items_by_argkey[slicing_argkey] if i in items + ] + for i in reversed(matching_items): + fix_cache_order(i, argkeys_cache, items_by_argkey) + items_deque.appendleft(i) + break + if no_argkey_group: + no_argkey_group = reorder_items_atscope( + no_argkey_group, argkeys_cache, items_by_argkey, scope.next_lower() + ) + for item in no_argkey_group: + items_done[item] = None + ignore.add(slicing_argkey) + return items_done + + +def get_direct_param_fixture_func(request: "FixtureRequest") -> Any: + return request.param + + +@attr.s(slots=True, auto_attribs=True) +class FuncFixtureInfo: + # Original function argument names. + argnames: Tuple[str, ...] + # Argnames that function immediately requires. These include argnames + + # fixture names specified via usefixtures and via autouse=True in fixture + # definitions. + initialnames: Tuple[str, ...] + names_closure: List[str] + name2fixturedefs: Dict[str, Sequence["FixtureDef[Any]"]] + + def prune_dependency_tree(self) -> None: + """Recompute names_closure from initialnames and name2fixturedefs. + + Can only reduce names_closure, which means that the new closure will + always be a subset of the old one. The order is preserved. + + This method is needed because direct parametrization may shadow some + of the fixtures that were included in the originally built dependency + tree. In this way the dependency tree can get pruned, and the closure + of argnames may get reduced. + """ + closure: Set[str] = set() + working_set = set(self.initialnames) + while working_set: + argname = working_set.pop() + # Argname may be smth not included in the original names_closure, + # in which case we ignore it. This currently happens with pseudo + # FixtureDefs which wrap 'get_direct_param_fixture_func(request)'. + # So they introduce the new dependency 'request' which might have + # been missing in the original tree (closure). + if argname not in closure and argname in self.names_closure: + closure.add(argname) + if argname in self.name2fixturedefs: + working_set.update(self.name2fixturedefs[argname][-1].argnames) + + self.names_closure[:] = sorted(closure, key=self.names_closure.index) + + +class FixtureRequest: + """A request for a fixture from a test or fixture function. + + A request object gives access to the requesting test context and has + an optional ``param`` attribute in case the fixture is parametrized + indirectly. + """ + + def __init__(self, pyfuncitem, *, _ispytest: bool = False) -> None: + check_ispytest(_ispytest) + self._pyfuncitem = pyfuncitem + #: Fixture for which this request is being performed. + self.fixturename: Optional[str] = None + self._scope = Scope.Function + self._fixture_defs: Dict[str, FixtureDef[Any]] = {} + fixtureinfo: FuncFixtureInfo = pyfuncitem._fixtureinfo + self._arg2fixturedefs = fixtureinfo.name2fixturedefs.copy() + self._arg2index: Dict[str, int] = {} + self._fixturemanager: FixtureManager = pyfuncitem.session._fixturemanager + # Notes on the type of `param`: + # -`request.param` is only defined in parametrized fixtures, and will raise + # AttributeError otherwise. Python typing has no notion of "undefined", so + # this cannot be reflected in the type. + # - Technically `param` is only (possibly) defined on SubRequest, not + # FixtureRequest, but the typing of that is still in flux so this cheats. + # - In the future we might consider using a generic for the param type, but + # for now just using Any. + self.param: Any + + @property + def scope(self) -> "_ScopeName": + """Scope string, one of "function", "class", "module", "package", "session".""" + return self._scope.value + + @property + def fixturenames(self) -> List[str]: + """Names of all active fixtures in this request.""" + result = list(self._pyfuncitem._fixtureinfo.names_closure) + result.extend(set(self._fixture_defs).difference(result)) + return result + + @property + def node(self): + """Underlying collection node (depends on current request scope).""" + return self._getscopeitem(self._scope) + + def _getnextfixturedef(self, argname: str) -> "FixtureDef[Any]": + fixturedefs = self._arg2fixturedefs.get(argname, None) + if fixturedefs is None: + # We arrive here because of a dynamic call to + # getfixturevalue(argname) usage which was naturally + # not known at parsing/collection time. + assert self._pyfuncitem.parent is not None + parentid = self._pyfuncitem.parent.nodeid + fixturedefs = self._fixturemanager.getfixturedefs(argname, parentid) + # TODO: Fix this type ignore. Either add assert or adjust types. + # Can this be None here? + self._arg2fixturedefs[argname] = fixturedefs # type: ignore[assignment] + # fixturedefs list is immutable so we maintain a decreasing index. + index = self._arg2index.get(argname, 0) - 1 + if fixturedefs is None or (-index > len(fixturedefs)): + raise FixtureLookupError(argname, self) + self._arg2index[argname] = index + return fixturedefs[index] + + @property + def config(self) -> Config: + """The pytest config object associated with this request.""" + return self._pyfuncitem.config # type: ignore[no-any-return] + + @property + def function(self): + """Test function object if the request has a per-function scope.""" + if self.scope != "function": + raise AttributeError( + f"function not available in {self.scope}-scoped context" + ) + return self._pyfuncitem.obj + + @property + def cls(self): + """Class (can be None) where the test function was collected.""" + if self.scope not in ("class", "function"): + raise AttributeError(f"cls not available in {self.scope}-scoped context") + clscol = self._pyfuncitem.getparent(_pytest.python.Class) + if clscol: + return clscol.obj + + @property + def instance(self): + """Instance (can be None) on which test function was collected.""" + # unittest support hack, see _pytest.unittest.TestCaseFunction. + try: + return self._pyfuncitem._testcase + except AttributeError: + function = getattr(self, "function", None) + return getattr(function, "__self__", None) + + @property + def module(self): + """Python module object where the test function was collected.""" + if self.scope not in ("function", "class", "module"): + raise AttributeError(f"module not available in {self.scope}-scoped context") + return self._pyfuncitem.getparent(_pytest.python.Module).obj + + @property + def path(self) -> Path: + """Path where the test function was collected.""" + if self.scope not in ("function", "class", "module", "package"): + raise AttributeError(f"path not available in {self.scope}-scoped context") + # TODO: Remove ignore once _pyfuncitem is properly typed. + return self._pyfuncitem.path # type: ignore + + @property + def keywords(self) -> MutableMapping[str, Any]: + """Keywords/markers dictionary for the underlying node.""" + node: nodes.Node = self.node + return node.keywords + + @property + def session(self) -> "Session": + """Pytest session object.""" + return self._pyfuncitem.session # type: ignore[no-any-return] + + def addfinalizer(self, finalizer: Callable[[], object]) -> None: + """Add finalizer/teardown function to be called without arguments after + the last test within the requesting test context finished execution.""" + # XXX usually this method is shadowed by fixturedef specific ones. + self._addfinalizer(finalizer, scope=self.scope) + + def _addfinalizer(self, finalizer: Callable[[], object], scope) -> None: + node = self._getscopeitem(scope) + node.addfinalizer(finalizer) + + def applymarker(self, marker: Union[str, MarkDecorator]) -> None: + """Apply a marker to a single test function invocation. + + This method is useful if you don't want to have a keyword/marker + on all function invocations. + + :param marker: + An object created by a call to ``pytest.mark.NAME(...)``. + """ + self.node.add_marker(marker) + + def raiseerror(self, msg: Optional[str]) -> NoReturn: + """Raise a FixtureLookupError exception. + + :param msg: + An optional custom error message. + """ + raise self._fixturemanager.FixtureLookupError(None, self, msg) + + def _fillfixtures(self) -> None: + item = self._pyfuncitem + fixturenames = getattr(item, "fixturenames", self.fixturenames) + for argname in fixturenames: + if argname not in item.funcargs: + item.funcargs[argname] = self.getfixturevalue(argname) + + def getfixturevalue(self, argname: str) -> Any: + """Dynamically run a named fixture function. + + Declaring fixtures via function argument is recommended where possible. + But if you can only decide whether to use another fixture at test + setup time, you may use this function to retrieve it inside a fixture + or test function body. + + This method can be used during the test setup phase or the test run + phase, but during the test teardown phase a fixture's value may not + be available. + + :param argname: + The fixture name. + :raises pytest.FixtureLookupError: + If the given fixture could not be found. + """ + fixturedef = self._get_active_fixturedef(argname) + assert fixturedef.cached_result is not None, ( + f'The fixture value for "{argname}" is not available. ' + "This can happen when the fixture has already been torn down." + ) + return fixturedef.cached_result[0] + + def _get_active_fixturedef( + self, argname: str + ) -> Union["FixtureDef[object]", PseudoFixtureDef[object]]: + try: + return self._fixture_defs[argname] + except KeyError: + try: + fixturedef = self._getnextfixturedef(argname) + except FixtureLookupError: + if argname == "request": + cached_result = (self, [0], None) + return PseudoFixtureDef(cached_result, Scope.Function) + raise + # Remove indent to prevent the python3 exception + # from leaking into the call. + self._compute_fixture_value(fixturedef) + self._fixture_defs[argname] = fixturedef + return fixturedef + + def _get_fixturestack(self) -> List["FixtureDef[Any]"]: + current = self + values: List[FixtureDef[Any]] = [] + while isinstance(current, SubRequest): + values.append(current._fixturedef) # type: ignore[has-type] + current = current._parent_request + values.reverse() + return values + + def _compute_fixture_value(self, fixturedef: "FixtureDef[object]") -> None: + """Create a SubRequest based on "self" and call the execute method + of the given FixtureDef object. + + This will force the FixtureDef object to throw away any previous + results and compute a new fixture value, which will be stored into + the FixtureDef object itself. + """ + # prepare a subrequest object before calling fixture function + # (latter managed by fixturedef) + argname = fixturedef.argname + funcitem = self._pyfuncitem + scope = fixturedef._scope + try: + callspec = funcitem.callspec + except AttributeError: + callspec = None + if callspec is not None and argname in callspec.params: + param = callspec.params[argname] + param_index = callspec.indices[argname] + # If a parametrize invocation set a scope it will override + # the static scope defined with the fixture function. + with suppress(KeyError): + scope = callspec._arg2scope[argname] + else: + param = NOTSET + param_index = 0 + has_params = fixturedef.params is not None + fixtures_not_supported = getattr(funcitem, "nofuncargs", False) + if has_params and fixtures_not_supported: + msg = ( + "{name} does not support fixtures, maybe unittest.TestCase subclass?\n" + "Node id: {nodeid}\n" + "Function type: {typename}" + ).format( + name=funcitem.name, + nodeid=funcitem.nodeid, + typename=type(funcitem).__name__, + ) + fail(msg, pytrace=False) + if has_params: + frame = inspect.stack()[3] + frameinfo = inspect.getframeinfo(frame[0]) + source_path = absolutepath(frameinfo.filename) + source_lineno = frameinfo.lineno + try: + source_path_str = str( + source_path.relative_to(funcitem.config.rootpath) + ) + except ValueError: + source_path_str = str(source_path) + msg = ( + "The requested fixture has no parameter defined for test:\n" + " {}\n\n" + "Requested fixture '{}' defined in:\n{}" + "\n\nRequested here:\n{}:{}".format( + funcitem.nodeid, + fixturedef.argname, + getlocation(fixturedef.func, funcitem.config.rootpath), + source_path_str, + source_lineno, + ) + ) + fail(msg, pytrace=False) + + subrequest = SubRequest( + self, scope, param, param_index, fixturedef, _ispytest=True + ) + + # Check if a higher-level scoped fixture accesses a lower level one. + subrequest._check_scope(argname, self._scope, scope) + try: + # Call the fixture function. + fixturedef.execute(request=subrequest) + finally: + self._schedule_finalizers(fixturedef, subrequest) + + def _schedule_finalizers( + self, fixturedef: "FixtureDef[object]", subrequest: "SubRequest" + ) -> None: + # If fixture function failed it might have registered finalizers. + subrequest.node.addfinalizer(lambda: fixturedef.finish(request=subrequest)) + + def _check_scope( + self, + argname: str, + invoking_scope: Scope, + requested_scope: Scope, + ) -> None: + if argname == "request": + return + if invoking_scope > requested_scope: + # Try to report something helpful. + text = "\n".join(self._factorytraceback()) + fail( + f"ScopeMismatch: You tried to access the {requested_scope.value} scoped " + f"fixture {argname} with a {invoking_scope.value} scoped request object, " + f"involved factories:\n{text}", + pytrace=False, + ) + + def _factorytraceback(self) -> List[str]: + lines = [] + for fixturedef in self._get_fixturestack(): + factory = fixturedef.func + fs, lineno = getfslineno(factory) + if isinstance(fs, Path): + session: Session = self._pyfuncitem.session + p = bestrelpath(session.path, fs) + else: + p = fs + args = _format_args(factory) + lines.append("%s:%d: def %s%s" % (p, lineno + 1, factory.__name__, args)) + return lines + + def _getscopeitem( + self, scope: Union[Scope, "_ScopeName"] + ) -> Union[nodes.Item, nodes.Collector]: + if isinstance(scope, str): + scope = Scope(scope) + if scope is Scope.Function: + # This might also be a non-function Item despite its attribute name. + node: Optional[Union[nodes.Item, nodes.Collector]] = self._pyfuncitem + elif scope is Scope.Package: + # FIXME: _fixturedef is not defined on FixtureRequest (this class), + # but on FixtureRequest (a subclass). + node = get_scope_package(self._pyfuncitem, self._fixturedef) # type: ignore[attr-defined] + else: + node = get_scope_node(self._pyfuncitem, scope) + if node is None and scope is Scope.Class: + # Fallback to function item itself. + node = self._pyfuncitem + assert node, 'Could not obtain a node for scope "{}" for function {!r}'.format( + scope, self._pyfuncitem + ) + return node + + def __repr__(self) -> str: + return "" % (self.node) + + +@final +class SubRequest(FixtureRequest): + """A sub request for handling getting a fixture from a test function/fixture.""" + + def __init__( + self, + request: "FixtureRequest", + scope: Scope, + param: Any, + param_index: int, + fixturedef: "FixtureDef[object]", + *, + _ispytest: bool = False, + ) -> None: + check_ispytest(_ispytest) + self._parent_request = request + self.fixturename = fixturedef.argname + if param is not NOTSET: + self.param = param + self.param_index = param_index + self._scope = scope + self._fixturedef = fixturedef + self._pyfuncitem = request._pyfuncitem + self._fixture_defs = request._fixture_defs + self._arg2fixturedefs = request._arg2fixturedefs + self._arg2index = request._arg2index + self._fixturemanager = request._fixturemanager + + def __repr__(self) -> str: + return f"" + + def addfinalizer(self, finalizer: Callable[[], object]) -> None: + """Add finalizer/teardown function to be called without arguments after + the last test within the requesting test context finished execution.""" + self._fixturedef.addfinalizer(finalizer) + + def _schedule_finalizers( + self, fixturedef: "FixtureDef[object]", subrequest: "SubRequest" + ) -> None: + # If the executing fixturedef was not explicitly requested in the argument list (via + # getfixturevalue inside the fixture call) then ensure this fixture def will be finished + # first. + if fixturedef.argname not in self.fixturenames: + fixturedef.addfinalizer( + functools.partial(self._fixturedef.finish, request=self) + ) + super()._schedule_finalizers(fixturedef, subrequest) + + +@final +class FixtureLookupError(LookupError): + """Could not return a requested fixture (missing or invalid).""" + + def __init__( + self, argname: Optional[str], request: FixtureRequest, msg: Optional[str] = None + ) -> None: + self.argname = argname + self.request = request + self.fixturestack = request._get_fixturestack() + self.msg = msg + + def formatrepr(self) -> "FixtureLookupErrorRepr": + tblines: List[str] = [] + addline = tblines.append + stack = [self.request._pyfuncitem.obj] + stack.extend(map(lambda x: x.func, self.fixturestack)) + msg = self.msg + if msg is not None: + # The last fixture raise an error, let's present + # it at the requesting side. + stack = stack[:-1] + for function in stack: + fspath, lineno = getfslineno(function) + try: + lines, _ = inspect.getsourcelines(get_real_func(function)) + except (OSError, IndexError, TypeError): + error_msg = "file %s, line %s: source code not available" + addline(error_msg % (fspath, lineno + 1)) + else: + addline(f"file {fspath}, line {lineno + 1}") + for i, line in enumerate(lines): + line = line.rstrip() + addline(" " + line) + if line.lstrip().startswith("def"): + break + + if msg is None: + fm = self.request._fixturemanager + available = set() + parentid = self.request._pyfuncitem.parent.nodeid + for name, fixturedefs in fm._arg2fixturedefs.items(): + faclist = list(fm._matchfactories(fixturedefs, parentid)) + if faclist: + available.add(name) + if self.argname in available: + msg = " recursive dependency involving fixture '{}' detected".format( + self.argname + ) + else: + msg = f"fixture '{self.argname}' not found" + msg += "\n available fixtures: {}".format(", ".join(sorted(available))) + msg += "\n use 'pytest --fixtures [testpath]' for help on them." + + return FixtureLookupErrorRepr(fspath, lineno, tblines, msg, self.argname) + + +class FixtureLookupErrorRepr(TerminalRepr): + def __init__( + self, + filename: Union[str, "os.PathLike[str]"], + firstlineno: int, + tblines: Sequence[str], + errorstring: str, + argname: Optional[str], + ) -> None: + self.tblines = tblines + self.errorstring = errorstring + self.filename = filename + self.firstlineno = firstlineno + self.argname = argname + + def toterminal(self, tw: TerminalWriter) -> None: + # tw.line("FixtureLookupError: %s" %(self.argname), red=True) + for tbline in self.tblines: + tw.line(tbline.rstrip()) + lines = self.errorstring.split("\n") + if lines: + tw.line( + f"{FormattedExcinfo.fail_marker} {lines[0].strip()}", + red=True, + ) + for line in lines[1:]: + tw.line( + f"{FormattedExcinfo.flow_marker} {line.strip()}", + red=True, + ) + tw.line() + tw.line("%s:%d" % (os.fspath(self.filename), self.firstlineno + 1)) + + +def fail_fixturefunc(fixturefunc, msg: str) -> NoReturn: + fs, lineno = getfslineno(fixturefunc) + location = f"{fs}:{lineno + 1}" + source = _pytest._code.Source(fixturefunc) + fail(msg + ":\n\n" + str(source.indent()) + "\n" + location, pytrace=False) + + +def call_fixture_func( + fixturefunc: "_FixtureFunc[FixtureValue]", request: FixtureRequest, kwargs +) -> FixtureValue: + if is_generator(fixturefunc): + fixturefunc = cast( + Callable[..., Generator[FixtureValue, None, None]], fixturefunc + ) + generator = fixturefunc(**kwargs) + try: + fixture_result = next(generator) + except StopIteration: + raise ValueError(f"{request.fixturename} did not yield a value") from None + finalizer = functools.partial(_teardown_yield_fixture, fixturefunc, generator) + request.addfinalizer(finalizer) + else: + fixturefunc = cast(Callable[..., FixtureValue], fixturefunc) + fixture_result = fixturefunc(**kwargs) + return fixture_result + + +def _teardown_yield_fixture(fixturefunc, it) -> None: + """Execute the teardown of a fixture function by advancing the iterator + after the yield and ensure the iteration ends (if not it means there is + more than one yield in the function).""" + try: + next(it) + except StopIteration: + pass + else: + fail_fixturefunc(fixturefunc, "fixture function has more than one 'yield'") + + +def _eval_scope_callable( + scope_callable: "Callable[[str, Config], _ScopeName]", + fixture_name: str, + config: Config, +) -> "_ScopeName": + try: + # Type ignored because there is no typing mechanism to specify + # keyword arguments, currently. + result = scope_callable(fixture_name=fixture_name, config=config) # type: ignore[call-arg] + except Exception as e: + raise TypeError( + "Error evaluating {} while defining fixture '{}'.\n" + "Expected a function with the signature (*, fixture_name, config)".format( + scope_callable, fixture_name + ) + ) from e + if not isinstance(result, str): + fail( + "Expected {} to return a 'str' while defining fixture '{}', but it returned:\n" + "{!r}".format(scope_callable, fixture_name, result), + pytrace=False, + ) + return result + + +@final +class FixtureDef(Generic[FixtureValue]): + """A container for a fixture definition.""" + + def __init__( + self, + fixturemanager: "FixtureManager", + baseid: Optional[str], + argname: str, + func: "_FixtureFunc[FixtureValue]", + scope: Union[Scope, "_ScopeName", Callable[[str, Config], "_ScopeName"], None], + params: Optional[Sequence[object]], + unittest: bool = False, + ids: Optional[ + Union[Tuple[Optional[object], ...], Callable[[Any], Optional[object]]] + ] = None, + ) -> None: + self._fixturemanager = fixturemanager + # The "base" node ID for the fixture. + # + # This is a node ID prefix. A fixture is only available to a node (e.g. + # a `Function` item) if the fixture's baseid is a parent of the node's + # nodeid (see the `iterparentnodeids` function for what constitutes a + # "parent" and a "prefix" in this context). + # + # For a fixture found in a Collector's object (e.g. a `Module`s module, + # a `Class`'s class), the baseid is the Collector's nodeid. + # + # For a fixture found in a conftest plugin, the baseid is the conftest's + # directory path relative to the rootdir. + # + # For other plugins, the baseid is the empty string (always matches). + self.baseid = baseid or "" + # Whether the fixture was found from a node or a conftest in the + # collection tree. Will be false for fixtures defined in non-conftest + # plugins. + self.has_location = baseid is not None + # The fixture factory function. + self.func = func + # The name by which the fixture may be requested. + self.argname = argname + if scope is None: + scope = Scope.Function + elif callable(scope): + scope = _eval_scope_callable(scope, argname, fixturemanager.config) + if isinstance(scope, str): + scope = Scope.from_user( + scope, descr=f"Fixture '{func.__name__}'", where=baseid + ) + self._scope = scope + # If the fixture is directly parametrized, the parameter values. + self.params: Optional[Sequence[object]] = params + # If the fixture is directly parametrized, a tuple of explicit IDs to + # assign to the parameter values, or a callable to generate an ID given + # a parameter value. + self.ids = ids + # The names requested by the fixtures. + self.argnames = getfuncargnames(func, name=argname, is_method=unittest) + # Whether the fixture was collected from a unittest TestCase class. + # Note that it really only makes sense to define autouse fixtures in + # unittest TestCases. + self.unittest = unittest + # If the fixture was executed, the current value of the fixture. + # Can change if the fixture is executed with different parameters. + self.cached_result: Optional[_FixtureCachedResult[FixtureValue]] = None + self._finalizers: List[Callable[[], object]] = [] + + @property + def scope(self) -> "_ScopeName": + """Scope string, one of "function", "class", "module", "package", "session".""" + return self._scope.value + + def addfinalizer(self, finalizer: Callable[[], object]) -> None: + self._finalizers.append(finalizer) + + def finish(self, request: SubRequest) -> None: + exc = None + try: + while self._finalizers: + try: + func = self._finalizers.pop() + func() + except BaseException as e: + # XXX Only first exception will be seen by user, + # ideally all should be reported. + if exc is None: + exc = e + if exc: + raise exc + finally: + ihook = request.node.ihook + ihook.pytest_fixture_post_finalizer(fixturedef=self, request=request) + # Even if finalization fails, we invalidate the cached fixture + # value and remove all finalizers because they may be bound methods + # which will keep instances alive. + self.cached_result = None + self._finalizers = [] + + def execute(self, request: SubRequest) -> FixtureValue: + # Get required arguments and register our own finish() + # with their finalization. + for argname in self.argnames: + fixturedef = request._get_active_fixturedef(argname) + if argname != "request": + # PseudoFixtureDef is only for "request". + assert isinstance(fixturedef, FixtureDef) + fixturedef.addfinalizer(functools.partial(self.finish, request=request)) + + my_cache_key = self.cache_key(request) + if self.cached_result is not None: + # note: comparison with `==` can fail (or be expensive) for e.g. + # numpy arrays (#6497). + cache_key = self.cached_result[1] + if my_cache_key is cache_key: + if self.cached_result[2] is not None: + _, val, tb = self.cached_result[2] + raise val.with_traceback(tb) + else: + result = self.cached_result[0] + return result + # We have a previous but differently parametrized fixture instance + # so we need to tear it down before creating a new one. + self.finish(request) + assert self.cached_result is None + + ihook = request.node.ihook + result = ihook.pytest_fixture_setup(fixturedef=self, request=request) + return result + + def cache_key(self, request: SubRequest) -> object: + return request.param_index if not hasattr(request, "param") else request.param + + def __repr__(self) -> str: + return "".format( + self.argname, self.scope, self.baseid + ) + + +def resolve_fixture_function( + fixturedef: FixtureDef[FixtureValue], request: FixtureRequest +) -> "_FixtureFunc[FixtureValue]": + """Get the actual callable that can be called to obtain the fixture + value, dealing with unittest-specific instances and bound methods.""" + fixturefunc = fixturedef.func + if fixturedef.unittest: + if request.instance is not None: + # Bind the unbound method to the TestCase instance. + fixturefunc = fixturedef.func.__get__(request.instance) # type: ignore[union-attr] + else: + # The fixture function needs to be bound to the actual + # request.instance so that code working with "fixturedef" behaves + # as expected. + if request.instance is not None: + # Handle the case where fixture is defined not in a test class, but some other class + # (for example a plugin class with a fixture), see #2270. + if hasattr(fixturefunc, "__self__") and not isinstance( + request.instance, fixturefunc.__self__.__class__ # type: ignore[union-attr] + ): + return fixturefunc + fixturefunc = getimfunc(fixturedef.func) + if fixturefunc != fixturedef.func: + fixturefunc = fixturefunc.__get__(request.instance) # type: ignore[union-attr] + return fixturefunc + + +def pytest_fixture_setup( + fixturedef: FixtureDef[FixtureValue], request: SubRequest +) -> FixtureValue: + """Execution of fixture setup.""" + kwargs = {} + for argname in fixturedef.argnames: + fixdef = request._get_active_fixturedef(argname) + assert fixdef.cached_result is not None + result, arg_cache_key, exc = fixdef.cached_result + request._check_scope(argname, request._scope, fixdef._scope) + kwargs[argname] = result + + fixturefunc = resolve_fixture_function(fixturedef, request) + my_cache_key = fixturedef.cache_key(request) + try: + result = call_fixture_func(fixturefunc, request, kwargs) + except TEST_OUTCOME: + exc_info = sys.exc_info() + assert exc_info[0] is not None + fixturedef.cached_result = (None, my_cache_key, exc_info) + raise + fixturedef.cached_result = (result, my_cache_key, None) + return result + + +def _ensure_immutable_ids( + ids: Optional[Union[Sequence[Optional[object]], Callable[[Any], Optional[object]]]] +) -> Optional[Union[Tuple[Optional[object], ...], Callable[[Any], Optional[object]]]]: + if ids is None: + return None + if callable(ids): + return ids + return tuple(ids) + + +def _params_converter( + params: Optional[Iterable[object]], +) -> Optional[Tuple[object, ...]]: + return tuple(params) if params is not None else None + + +def wrap_function_to_error_out_if_called_directly( + function: FixtureFunction, + fixture_marker: "FixtureFunctionMarker", +) -> FixtureFunction: + """Wrap the given fixture function so we can raise an error about it being called directly, + instead of used as an argument in a test function.""" + message = ( + 'Fixture "{name}" called directly. Fixtures are not meant to be called directly,\n' + "but are created automatically when test functions request them as parameters.\n" + "See https://docs.pytest.org/en/stable/explanation/fixtures.html for more information about fixtures, and\n" + "https://docs.pytest.org/en/stable/deprecations.html#calling-fixtures-directly about how to update your code." + ).format(name=fixture_marker.name or function.__name__) + + @functools.wraps(function) + def result(*args, **kwargs): + fail(message, pytrace=False) + + # Keep reference to the original function in our own custom attribute so we don't unwrap + # further than this point and lose useful wrappings like @mock.patch (#3774). + result.__pytest_wrapped__ = _PytestWrapper(function) # type: ignore[attr-defined] + + return cast(FixtureFunction, result) + + +@final +@attr.s(frozen=True, auto_attribs=True) +class FixtureFunctionMarker: + scope: "Union[_ScopeName, Callable[[str, Config], _ScopeName]]" + params: Optional[Tuple[object, ...]] = attr.ib(converter=_params_converter) + autouse: bool = False + ids: Optional[ + Union[Tuple[Optional[object], ...], Callable[[Any], Optional[object]]] + ] = attr.ib( + default=None, + converter=_ensure_immutable_ids, + ) + name: Optional[str] = None + + def __call__(self, function: FixtureFunction) -> FixtureFunction: + if inspect.isclass(function): + raise ValueError("class fixtures not supported (maybe in the future)") + + if getattr(function, "_pytestfixturefunction", False): + raise ValueError( + "fixture is being applied more than once to the same function" + ) + + function = wrap_function_to_error_out_if_called_directly(function, self) + + name = self.name or function.__name__ + if name == "request": + location = getlocation(function) + fail( + "'request' is a reserved word for fixtures, use another name:\n {}".format( + location + ), + pytrace=False, + ) + + # Type ignored because https://github.com/python/mypy/issues/2087. + function._pytestfixturefunction = self # type: ignore[attr-defined] + return function + + +@overload +def fixture( + fixture_function: FixtureFunction, + *, + scope: "Union[_ScopeName, Callable[[str, Config], _ScopeName]]" = ..., + params: Optional[Iterable[object]] = ..., + autouse: bool = ..., + ids: Optional[ + Union[Sequence[Optional[object]], Callable[[Any], Optional[object]]] + ] = ..., + name: Optional[str] = ..., +) -> FixtureFunction: + ... + + +@overload +def fixture( # noqa: F811 + fixture_function: None = ..., + *, + scope: "Union[_ScopeName, Callable[[str, Config], _ScopeName]]" = ..., + params: Optional[Iterable[object]] = ..., + autouse: bool = ..., + ids: Optional[ + Union[Sequence[Optional[object]], Callable[[Any], Optional[object]]] + ] = ..., + name: Optional[str] = None, +) -> FixtureFunctionMarker: + ... + + +def fixture( # noqa: F811 + fixture_function: Optional[FixtureFunction] = None, + *, + scope: "Union[_ScopeName, Callable[[str, Config], _ScopeName]]" = "function", + params: Optional[Iterable[object]] = None, + autouse: bool = False, + ids: Optional[ + Union[Sequence[Optional[object]], Callable[[Any], Optional[object]]] + ] = None, + name: Optional[str] = None, +) -> Union[FixtureFunctionMarker, FixtureFunction]: + """Decorator to mark a fixture factory function. + + This decorator can be used, with or without parameters, to define a + fixture function. + + The name of the fixture function can later be referenced to cause its + invocation ahead of running tests: test modules or classes can use the + ``pytest.mark.usefixtures(fixturename)`` marker. + + Test functions can directly use fixture names as input arguments in which + case the fixture instance returned from the fixture function will be + injected. + + Fixtures can provide their values to test functions using ``return`` or + ``yield`` statements. When using ``yield`` the code block after the + ``yield`` statement is executed as teardown code regardless of the test + outcome, and must yield exactly once. + + :param scope: + The scope for which this fixture is shared; one of ``"function"`` + (default), ``"class"``, ``"module"``, ``"package"`` or ``"session"``. + + This parameter may also be a callable which receives ``(fixture_name, config)`` + as parameters, and must return a ``str`` with one of the values mentioned above. + + See :ref:`dynamic scope` in the docs for more information. + + :param params: + An optional list of parameters which will cause multiple invocations + of the fixture function and all of the tests using it. The current + parameter is available in ``request.param``. + + :param autouse: + If True, the fixture func is activated for all tests that can see it. + If False (the default), an explicit reference is needed to activate + the fixture. + + :param ids: + Sequence of ids each corresponding to the params so that they are + part of the test id. If no ids are provided they will be generated + automatically from the params. + + :param name: + The name of the fixture. This defaults to the name of the decorated + function. If a fixture is used in the same module in which it is + defined, the function name of the fixture will be shadowed by the + function arg that requests the fixture; one way to resolve this is to + name the decorated function ``fixture_`` and then use + ``@pytest.fixture(name='')``. + """ + fixture_marker = FixtureFunctionMarker( + scope=scope, + params=params, + autouse=autouse, + ids=ids, + name=name, + ) + + # Direct decoration. + if fixture_function: + return fixture_marker(fixture_function) + + return fixture_marker + + +def yield_fixture( + fixture_function=None, + *args, + scope="function", + params=None, + autouse=False, + ids=None, + name=None, +): + """(Return a) decorator to mark a yield-fixture factory function. + + .. deprecated:: 3.0 + Use :py:func:`pytest.fixture` directly instead. + """ + warnings.warn(YIELD_FIXTURE, stacklevel=2) + return fixture( + fixture_function, + *args, + scope=scope, + params=params, + autouse=autouse, + ids=ids, + name=name, + ) + + +@fixture(scope="session") +def pytestconfig(request: FixtureRequest) -> Config: + """Session-scoped fixture that returns the session's :class:`pytest.Config` + object. + + Example:: + + def test_foo(pytestconfig): + if pytestconfig.getoption("verbose") > 0: + ... + + """ + return request.config + + +def pytest_addoption(parser: Parser) -> None: + parser.addini( + "usefixtures", + type="args", + default=[], + help="List of default fixtures to be used with this project", + ) + + +class FixtureManager: + """pytest fixture definitions and information is stored and managed + from this class. + + During collection fm.parsefactories() is called multiple times to parse + fixture function definitions into FixtureDef objects and internal + data structures. + + During collection of test functions, metafunc-mechanics instantiate + a FuncFixtureInfo object which is cached per node/func-name. + This FuncFixtureInfo object is later retrieved by Function nodes + which themselves offer a fixturenames attribute. + + The FuncFixtureInfo object holds information about fixtures and FixtureDefs + relevant for a particular function. An initial list of fixtures is + assembled like this: + + - ini-defined usefixtures + - autouse-marked fixtures along the collection chain up from the function + - usefixtures markers at module/class/function level + - test function funcargs + + Subsequently the funcfixtureinfo.fixturenames attribute is computed + as the closure of the fixtures needed to setup the initial fixtures, + i.e. fixtures needed by fixture functions themselves are appended + to the fixturenames list. + + Upon the test-setup phases all fixturenames are instantiated, retrieved + by a lookup of their FuncFixtureInfo. + """ + + FixtureLookupError = FixtureLookupError + FixtureLookupErrorRepr = FixtureLookupErrorRepr + + def __init__(self, session: "Session") -> None: + self.session = session + self.config: Config = session.config + self._arg2fixturedefs: Dict[str, List[FixtureDef[Any]]] = {} + self._holderobjseen: Set[object] = set() + # A mapping from a nodeid to a list of autouse fixtures it defines. + self._nodeid_autousenames: Dict[str, List[str]] = { + "": self.config.getini("usefixtures"), + } + session.config.pluginmanager.register(self, "funcmanage") + + def _get_direct_parametrize_args(self, node: nodes.Node) -> List[str]: + """Return all direct parametrization arguments of a node, so we don't + mistake them for fixtures. + + Check https://github.com/pytest-dev/pytest/issues/5036. + + These things are done later as well when dealing with parametrization + so this could be improved. + """ + parametrize_argnames: List[str] = [] + for marker in node.iter_markers(name="parametrize"): + if not marker.kwargs.get("indirect", False): + p_argnames, _ = ParameterSet._parse_parametrize_args( + *marker.args, **marker.kwargs + ) + parametrize_argnames.extend(p_argnames) + + return parametrize_argnames + + def getfixtureinfo( + self, node: nodes.Node, func, cls, funcargs: bool = True + ) -> FuncFixtureInfo: + if funcargs and not getattr(node, "nofuncargs", False): + argnames = getfuncargnames(func, name=node.name, cls=cls) + else: + argnames = () + + usefixtures = tuple( + arg for mark in node.iter_markers(name="usefixtures") for arg in mark.args + ) + initialnames = usefixtures + argnames + fm = node.session._fixturemanager + initialnames, names_closure, arg2fixturedefs = fm.getfixtureclosure( + initialnames, node, ignore_args=self._get_direct_parametrize_args(node) + ) + return FuncFixtureInfo(argnames, initialnames, names_closure, arg2fixturedefs) + + def pytest_plugin_registered(self, plugin: _PluggyPlugin) -> None: + nodeid = None + try: + p = absolutepath(plugin.__file__) # type: ignore[attr-defined] + except AttributeError: + pass + else: + # Construct the base nodeid which is later used to check + # what fixtures are visible for particular tests (as denoted + # by their test id). + if p.name.startswith("conftest.py"): + try: + nodeid = str(p.parent.relative_to(self.config.rootpath)) + except ValueError: + nodeid = "" + if nodeid == ".": + nodeid = "" + if os.sep != nodes.SEP: + nodeid = nodeid.replace(os.sep, nodes.SEP) + + self.parsefactories(plugin, nodeid) + + def _getautousenames(self, nodeid: str) -> Iterator[str]: + """Return the names of autouse fixtures applicable to nodeid.""" + for parentnodeid in nodes.iterparentnodeids(nodeid): + basenames = self._nodeid_autousenames.get(parentnodeid) + if basenames: + yield from basenames + + def getfixtureclosure( + self, + fixturenames: Tuple[str, ...], + parentnode: nodes.Node, + ignore_args: Sequence[str] = (), + ) -> Tuple[Tuple[str, ...], List[str], Dict[str, Sequence[FixtureDef[Any]]]]: + # Collect the closure of all fixtures, starting with the given + # fixturenames as the initial set. As we have to visit all + # factory definitions anyway, we also return an arg2fixturedefs + # mapping so that the caller can reuse it and does not have + # to re-discover fixturedefs again for each fixturename + # (discovering matching fixtures for a given name/node is expensive). + + parentid = parentnode.nodeid + fixturenames_closure = list(self._getautousenames(parentid)) + + def merge(otherlist: Iterable[str]) -> None: + for arg in otherlist: + if arg not in fixturenames_closure: + fixturenames_closure.append(arg) + + merge(fixturenames) + + # At this point, fixturenames_closure contains what we call "initialnames", + # which is a set of fixturenames the function immediately requests. We + # need to return it as well, so save this. + initialnames = tuple(fixturenames_closure) + + arg2fixturedefs: Dict[str, Sequence[FixtureDef[Any]]] = {} + lastlen = -1 + while lastlen != len(fixturenames_closure): + lastlen = len(fixturenames_closure) + for argname in fixturenames_closure: + if argname in ignore_args: + continue + if argname in arg2fixturedefs: + continue + fixturedefs = self.getfixturedefs(argname, parentid) + if fixturedefs: + arg2fixturedefs[argname] = fixturedefs + merge(fixturedefs[-1].argnames) + + def sort_by_scope(arg_name: str) -> Scope: + try: + fixturedefs = arg2fixturedefs[arg_name] + except KeyError: + return Scope.Function + else: + return fixturedefs[-1]._scope + + fixturenames_closure.sort(key=sort_by_scope, reverse=True) + return initialnames, fixturenames_closure, arg2fixturedefs + + def pytest_generate_tests(self, metafunc: "Metafunc") -> None: + """Generate new tests based on parametrized fixtures used by the given metafunc""" + + def get_parametrize_mark_argnames(mark: Mark) -> Sequence[str]: + args, _ = ParameterSet._parse_parametrize_args(*mark.args, **mark.kwargs) + return args + + for argname in metafunc.fixturenames: + # Get the FixtureDefs for the argname. + fixture_defs = metafunc._arg2fixturedefs.get(argname) + if not fixture_defs: + # Will raise FixtureLookupError at setup time if not parametrized somewhere + # else (e.g @pytest.mark.parametrize) + continue + + # If the test itself parametrizes using this argname, give it + # precedence. + if any( + argname in get_parametrize_mark_argnames(mark) + for mark in metafunc.definition.iter_markers("parametrize") + ): + continue + + # In the common case we only look at the fixture def with the + # closest scope (last in the list). But if the fixture overrides + # another fixture, while requesting the super fixture, keep going + # in case the super fixture is parametrized (#1953). + for fixturedef in reversed(fixture_defs): + # Fixture is parametrized, apply it and stop. + if fixturedef.params is not None: + metafunc.parametrize( + argname, + fixturedef.params, + indirect=True, + scope=fixturedef.scope, + ids=fixturedef.ids, + ) + break + + # Not requesting the overridden super fixture, stop. + if argname not in fixturedef.argnames: + break + + # Try next super fixture, if any. + + def pytest_collection_modifyitems(self, items: List[nodes.Item]) -> None: + # Separate parametrized setups. + items[:] = reorder_items(items) + + def parsefactories( + self, node_or_obj, nodeid=NOTSET, unittest: bool = False + ) -> None: + if nodeid is not NOTSET: + holderobj = node_or_obj + else: + holderobj = node_or_obj.obj + nodeid = node_or_obj.nodeid + if holderobj in self._holderobjseen: + return + + self._holderobjseen.add(holderobj) + autousenames = [] + for name in dir(holderobj): + # ugly workaround for one of the fspath deprecated property of node + # todo: safely generalize + if isinstance(holderobj, nodes.Node) and name == "fspath": + continue + + # The attribute can be an arbitrary descriptor, so the attribute + # access below can raise. safe_getatt() ignores such exceptions. + obj = safe_getattr(holderobj, name, None) + marker = getfixturemarker(obj) + if not isinstance(marker, FixtureFunctionMarker): + # Magic globals with __getattr__ might have got us a wrong + # fixture attribute. + continue + + if marker.name: + name = marker.name + + # During fixture definition we wrap the original fixture function + # to issue a warning if called directly, so here we unwrap it in + # order to not emit the warning when pytest itself calls the + # fixture function. + obj = get_real_method(obj, holderobj) + + fixture_def = FixtureDef( + fixturemanager=self, + baseid=nodeid, + argname=name, + func=obj, + scope=marker.scope, + params=marker.params, + unittest=unittest, + ids=marker.ids, + ) + + faclist = self._arg2fixturedefs.setdefault(name, []) + if fixture_def.has_location: + faclist.append(fixture_def) + else: + # fixturedefs with no location are at the front + # so this inserts the current fixturedef after the + # existing fixturedefs from external plugins but + # before the fixturedefs provided in conftests. + i = len([f for f in faclist if not f.has_location]) + faclist.insert(i, fixture_def) + if marker.autouse: + autousenames.append(name) + + if autousenames: + self._nodeid_autousenames.setdefault(nodeid or "", []).extend(autousenames) + + def getfixturedefs( + self, argname: str, nodeid: str + ) -> Optional[Sequence[FixtureDef[Any]]]: + """Get a list of fixtures which are applicable to the given node id. + + :param str argname: Name of the fixture to search for. + :param str nodeid: Full node id of the requesting test. + :rtype: Sequence[FixtureDef] + """ + try: + fixturedefs = self._arg2fixturedefs[argname] + except KeyError: + return None + return tuple(self._matchfactories(fixturedefs, nodeid)) + + def _matchfactories( + self, fixturedefs: Iterable[FixtureDef[Any]], nodeid: str + ) -> Iterator[FixtureDef[Any]]: + parentnodeids = set(nodes.iterparentnodeids(nodeid)) + for fixturedef in fixturedefs: + if fixturedef.baseid in parentnodeids: + yield fixturedef diff --git a/utils/python-venv/Lib/site-packages/_pytest/freeze_support.py b/utils/python-venv/Lib/site-packages/_pytest/freeze_support.py new file mode 100644 index 0000000..9f8ea23 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/freeze_support.py @@ -0,0 +1,44 @@ +"""Provides a function to report all internal modules for using freezing +tools.""" +import types +from typing import Iterator +from typing import List +from typing import Union + + +def freeze_includes() -> List[str]: + """Return a list of module names used by pytest that should be + included by cx_freeze.""" + import _pytest + + result = list(_iter_all_modules(_pytest)) + return result + + +def _iter_all_modules( + package: Union[str, types.ModuleType], + prefix: str = "", +) -> Iterator[str]: + """Iterate over the names of all modules that can be found in the given + package, recursively. + + >>> import _pytest + >>> list(_iter_all_modules(_pytest)) + ['_pytest._argcomplete', '_pytest._code.code', ...] + """ + import os + import pkgutil + + if isinstance(package, str): + path = package + else: + # Type ignored because typeshed doesn't define ModuleType.__path__ + # (only defined on packages). + package_path = package.__path__ # type: ignore[attr-defined] + path, prefix = package_path[0], package.__name__ + "." + for _, name, is_package in pkgutil.iter_modules([path]): + if is_package: + for m in _iter_all_modules(os.path.join(path, name), prefix=name + "."): + yield prefix + m + else: + yield prefix + name diff --git a/utils/python-venv/Lib/site-packages/_pytest/helpconfig.py b/utils/python-venv/Lib/site-packages/_pytest/helpconfig.py new file mode 100644 index 0000000..151bc6d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/helpconfig.py @@ -0,0 +1,265 @@ +"""Version info, help messages, tracing configuration.""" +import os +import sys +from argparse import Action +from typing import List +from typing import Optional +from typing import Union + +import pytest +from _pytest.config import Config +from _pytest.config import ExitCode +from _pytest.config import PrintHelp +from _pytest.config.argparsing import Parser + + +class HelpAction(Action): + """An argparse Action that will raise an exception in order to skip the + rest of the argument parsing when --help is passed. + + This prevents argparse from quitting due to missing required arguments + when any are defined, for example by ``pytest_addoption``. + This is similar to the way that the builtin argparse --help option is + implemented by raising SystemExit. + """ + + def __init__(self, option_strings, dest=None, default=False, help=None): + super().__init__( + option_strings=option_strings, + dest=dest, + const=True, + default=default, + nargs=0, + help=help, + ) + + def __call__(self, parser, namespace, values, option_string=None): + setattr(namespace, self.dest, self.const) + + # We should only skip the rest of the parsing after preparse is done. + if getattr(parser._parser, "after_preparse", False): + raise PrintHelp + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("debugconfig") + group.addoption( + "--version", + "-V", + action="count", + default=0, + dest="version", + help="Display pytest version and information about plugins. " + "When given twice, also display information about plugins.", + ) + group._addoption( + "-h", + "--help", + action=HelpAction, + dest="help", + help="Show help message and configuration info", + ) + group._addoption( + "-p", + action="append", + dest="plugins", + default=[], + metavar="name", + help="Early-load given plugin module name or entry point (multi-allowed). " + "To avoid loading of plugins, use the `no:` prefix, e.g. " + "`no:doctest`.", + ) + group.addoption( + "--traceconfig", + "--trace-config", + action="store_true", + default=False, + help="Trace considerations of conftest.py files", + ) + group.addoption( + "--debug", + action="store", + nargs="?", + const="pytestdebug.log", + dest="debug", + metavar="DEBUG_FILE_NAME", + help="Store internal tracing debug information in this log file. " + "This file is opened with 'w' and truncated as a result, care advised. " + "Default: pytestdebug.log.", + ) + group._addoption( + "-o", + "--override-ini", + dest="override_ini", + action="append", + help='Override ini option with "option=value" style, ' + "e.g. `-o xfail_strict=True -o cache_dir=cache`.", + ) + + +@pytest.hookimpl(hookwrapper=True) +def pytest_cmdline_parse(): + outcome = yield + config: Config = outcome.get_result() + + if config.option.debug: + # --debug | --debug was provided. + path = config.option.debug + debugfile = open(path, "w") + debugfile.write( + "versions pytest-%s, " + "python-%s\ncwd=%s\nargs=%s\n\n" + % ( + pytest.__version__, + ".".join(map(str, sys.version_info)), + os.getcwd(), + config.invocation_params.args, + ) + ) + config.trace.root.setwriter(debugfile.write) + undo_tracing = config.pluginmanager.enable_tracing() + sys.stderr.write("writing pytest debug information to %s\n" % path) + + def unset_tracing() -> None: + debugfile.close() + sys.stderr.write("wrote pytest debug information to %s\n" % debugfile.name) + config.trace.root.setwriter(None) + undo_tracing() + + config.add_cleanup(unset_tracing) + + +def showversion(config: Config) -> None: + if config.option.version > 1: + sys.stdout.write( + "This is pytest version {}, imported from {}\n".format( + pytest.__version__, pytest.__file__ + ) + ) + plugininfo = getpluginversioninfo(config) + if plugininfo: + for line in plugininfo: + sys.stdout.write(line + "\n") + else: + sys.stdout.write(f"pytest {pytest.__version__}\n") + + +def pytest_cmdline_main(config: Config) -> Optional[Union[int, ExitCode]]: + if config.option.version > 0: + showversion(config) + return 0 + elif config.option.help: + config._do_configure() + showhelp(config) + config._ensure_unconfigure() + return 0 + return None + + +def showhelp(config: Config) -> None: + import textwrap + + reporter = config.pluginmanager.get_plugin("terminalreporter") + tw = reporter._tw + tw.write(config._parser.optparser.format_help()) + tw.line() + tw.line( + "[pytest] ini-options in the first pytest.ini|tox.ini|setup.cfg file found:" + ) + tw.line() + + columns = tw.fullwidth # costly call + indent_len = 24 # based on argparse's max_help_position=24 + indent = " " * indent_len + for name in config._parser._ininames: + help, type, default = config._parser._inidict[name] + if type is None: + type = "string" + if help is None: + raise TypeError(f"help argument cannot be None for {name}") + spec = f"{name} ({type}):" + tw.write(" %s" % spec) + spec_len = len(spec) + if spec_len > (indent_len - 3): + # Display help starting at a new line. + tw.line() + helplines = textwrap.wrap( + help, + columns, + initial_indent=indent, + subsequent_indent=indent, + break_on_hyphens=False, + ) + + for line in helplines: + tw.line(line) + else: + # Display help starting after the spec, following lines indented. + tw.write(" " * (indent_len - spec_len - 2)) + wrapped = textwrap.wrap(help, columns - indent_len, break_on_hyphens=False) + + if wrapped: + tw.line(wrapped[0]) + for line in wrapped[1:]: + tw.line(indent + line) + + tw.line() + tw.line("Environment variables:") + vars = [ + ("PYTEST_ADDOPTS", "Extra command line options"), + ("PYTEST_PLUGINS", "Comma-separated plugins to load during startup"), + ("PYTEST_DISABLE_PLUGIN_AUTOLOAD", "Set to disable plugin auto-loading"), + ("PYTEST_DEBUG", "Set to enable debug tracing of pytest's internals"), + ] + for name, help in vars: + tw.line(f" {name:<24} {help}") + tw.line() + tw.line() + + tw.line("to see available markers type: pytest --markers") + tw.line("to see available fixtures type: pytest --fixtures") + tw.line( + "(shown according to specified file_or_dir or current dir " + "if not specified; fixtures with leading '_' are only shown " + "with the '-v' option" + ) + + for warningreport in reporter.stats.get("warnings", []): + tw.line("warning : " + warningreport.message, red=True) + return + + +conftest_options = [("pytest_plugins", "list of plugin names to load")] + + +def getpluginversioninfo(config: Config) -> List[str]: + lines = [] + plugininfo = config.pluginmanager.list_plugin_distinfo() + if plugininfo: + lines.append("setuptools registered plugins:") + for plugin, dist in plugininfo: + loc = getattr(plugin, "__file__", repr(plugin)) + content = f"{dist.project_name}-{dist.version} at {loc}" + lines.append(" " + content) + return lines + + +def pytest_report_header(config: Config) -> List[str]: + lines = [] + if config.option.debug or config.option.traceconfig: + lines.append(f"using: pytest-{pytest.__version__}") + + verinfo = getpluginversioninfo(config) + if verinfo: + lines.extend(verinfo) + + if config.option.traceconfig: + lines.append("active plugins:") + items = config.pluginmanager.list_name_plugin() + for name, plugin in items: + if hasattr(plugin, "__file__"): + r = plugin.__file__ + else: + r = repr(plugin) + lines.append(f" {name:<20}: {r}") + return lines diff --git a/utils/python-venv/Lib/site-packages/_pytest/hookspec.py b/utils/python-venv/Lib/site-packages/_pytest/hookspec.py new file mode 100644 index 0000000..cc0828d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/hookspec.py @@ -0,0 +1,972 @@ +"""Hook specifications for pytest plugins which are invoked by pytest itself +and by builtin plugins.""" +from pathlib import Path +from typing import Any +from typing import Dict +from typing import List +from typing import Mapping +from typing import Optional +from typing import Sequence +from typing import Tuple +from typing import TYPE_CHECKING +from typing import Union + +from pluggy import HookspecMarker + +from _pytest.deprecated import WARNING_CMDLINE_PREPARSE_HOOK + +if TYPE_CHECKING: + import pdb + import warnings + from typing_extensions import Literal + + from _pytest._code.code import ExceptionRepr + from _pytest.code import ExceptionInfo + from _pytest.config import Config + from _pytest.config import ExitCode + from _pytest.config import PytestPluginManager + from _pytest.config import _PluggyPlugin + from _pytest.config.argparsing import Parser + from _pytest.fixtures import FixtureDef + from _pytest.fixtures import SubRequest + from _pytest.main import Session + from _pytest.nodes import Collector + from _pytest.nodes import Item + from _pytest.outcomes import Exit + from _pytest.python import Class + from _pytest.python import Function + from _pytest.python import Metafunc + from _pytest.python import Module + from _pytest.reports import CollectReport + from _pytest.reports import TestReport + from _pytest.runner import CallInfo + from _pytest.terminal import TerminalReporter + from _pytest.compat import LEGACY_PATH + + +hookspec = HookspecMarker("pytest") + +# ------------------------------------------------------------------------- +# Initialization hooks called for every plugin +# ------------------------------------------------------------------------- + + +@hookspec(historic=True) +def pytest_addhooks(pluginmanager: "PytestPluginManager") -> None: + """Called at plugin registration time to allow adding new hooks via a call to + ``pluginmanager.add_hookspecs(module_or_class, prefix)``. + + :param pytest.PytestPluginManager pluginmanager: The pytest plugin manager. + + .. note:: + This hook is incompatible with ``hookwrapper=True``. + """ + + +@hookspec(historic=True) +def pytest_plugin_registered( + plugin: "_PluggyPlugin", manager: "PytestPluginManager" +) -> None: + """A new pytest plugin got registered. + + :param plugin: The plugin module or instance. + :param pytest.PytestPluginManager manager: pytest plugin manager. + + .. note:: + This hook is incompatible with ``hookwrapper=True``. + """ + + +@hookspec(historic=True) +def pytest_addoption(parser: "Parser", pluginmanager: "PytestPluginManager") -> None: + """Register argparse-style options and ini-style config values, + called once at the beginning of a test run. + + .. note:: + + This function should be implemented only in plugins or ``conftest.py`` + files situated at the tests root directory due to how pytest + :ref:`discovers plugins during startup `. + + :param pytest.Parser parser: + To add command line options, call + :py:func:`parser.addoption(...) `. + To add ini-file values call :py:func:`parser.addini(...) + `. + + :param pytest.PytestPluginManager pluginmanager: + The pytest plugin manager, which can be used to install :py:func:`hookspec`'s + or :py:func:`hookimpl`'s and allow one plugin to call another plugin's hooks + to change how command line options are added. + + Options can later be accessed through the + :py:class:`config ` object, respectively: + + - :py:func:`config.getoption(name) ` to + retrieve the value of a command line option. + + - :py:func:`config.getini(name) ` to retrieve + a value read from an ini-style file. + + The config object is passed around on many internal objects via the ``.config`` + attribute or can be retrieved as the ``pytestconfig`` fixture. + + .. note:: + This hook is incompatible with ``hookwrapper=True``. + """ + + +@hookspec(historic=True) +def pytest_configure(config: "Config") -> None: + """Allow plugins and conftest files to perform initial configuration. + + This hook is called for every plugin and initial conftest file + after command line options have been parsed. + + After that, the hook is called for other conftest files as they are + imported. + + .. note:: + This hook is incompatible with ``hookwrapper=True``. + + :param pytest.Config config: The pytest config object. + """ + + +# ------------------------------------------------------------------------- +# Bootstrapping hooks called for plugins registered early enough: +# internal and 3rd party plugins. +# ------------------------------------------------------------------------- + + +@hookspec(firstresult=True) +def pytest_cmdline_parse( + pluginmanager: "PytestPluginManager", args: List[str] +) -> Optional["Config"]: + """Return an initialized :class:`~pytest.Config`, parsing the specified args. + + Stops at first non-None result, see :ref:`firstresult`. + + .. note:: + This hook will only be called for plugin classes passed to the + ``plugins`` arg when using `pytest.main`_ to perform an in-process + test run. + + :param pluginmanager: The pytest plugin manager. + :param args: List of arguments passed on the command line. + :returns: A pytest config object. + """ + + +@hookspec(warn_on_impl=WARNING_CMDLINE_PREPARSE_HOOK) +def pytest_cmdline_preparse(config: "Config", args: List[str]) -> None: + """(**Deprecated**) modify command line arguments before option parsing. + + This hook is considered deprecated and will be removed in a future pytest version. Consider + using :hook:`pytest_load_initial_conftests` instead. + + .. note:: + This hook will not be called for ``conftest.py`` files, only for setuptools plugins. + + :param config: The pytest config object. + :param args: Arguments passed on the command line. + """ + + +@hookspec(firstresult=True) +def pytest_cmdline_main(config: "Config") -> Optional[Union["ExitCode", int]]: + """Called for performing the main command line action. The default + implementation will invoke the configure hooks and runtest_mainloop. + + Stops at first non-None result, see :ref:`firstresult`. + + :param config: The pytest config object. + :returns: The exit code. + """ + + +def pytest_load_initial_conftests( + early_config: "Config", parser: "Parser", args: List[str] +) -> None: + """Called to implement the loading of initial conftest files ahead + of command line option parsing. + + .. note:: + This hook will not be called for ``conftest.py`` files, only for setuptools plugins. + + :param early_config: The pytest config object. + :param args: Arguments passed on the command line. + :param parser: To add command line options. + """ + + +# ------------------------------------------------------------------------- +# collection hooks +# ------------------------------------------------------------------------- + + +@hookspec(firstresult=True) +def pytest_collection(session: "Session") -> Optional[object]: + """Perform the collection phase for the given session. + + Stops at first non-None result, see :ref:`firstresult`. + The return value is not used, but only stops further processing. + + The default collection phase is this (see individual hooks for full details): + + 1. Starting from ``session`` as the initial collector: + + 1. ``pytest_collectstart(collector)`` + 2. ``report = pytest_make_collect_report(collector)`` + 3. ``pytest_exception_interact(collector, call, report)`` if an interactive exception occurred + 4. For each collected node: + + 1. If an item, ``pytest_itemcollected(item)`` + 2. If a collector, recurse into it. + + 5. ``pytest_collectreport(report)`` + + 2. ``pytest_collection_modifyitems(session, config, items)`` + + 1. ``pytest_deselected(items)`` for any deselected items (may be called multiple times) + + 3. ``pytest_collection_finish(session)`` + 4. Set ``session.items`` to the list of collected items + 5. Set ``session.testscollected`` to the number of collected items + + You can implement this hook to only perform some action before collection, + for example the terminal plugin uses it to start displaying the collection + counter (and returns `None`). + + :param session: The pytest session object. + """ + + +def pytest_collection_modifyitems( + session: "Session", config: "Config", items: List["Item"] +) -> None: + """Called after collection has been performed. May filter or re-order + the items in-place. + + :param session: The pytest session object. + :param config: The pytest config object. + :param items: List of item objects. + """ + + +def pytest_collection_finish(session: "Session") -> None: + """Called after collection has been performed and modified. + + :param session: The pytest session object. + """ + + +@hookspec(firstresult=True) +def pytest_ignore_collect( + collection_path: Path, path: "LEGACY_PATH", config: "Config" +) -> Optional[bool]: + """Return True to prevent considering this path for collection. + + This hook is consulted for all files and directories prior to calling + more specific hooks. + + Stops at first non-None result, see :ref:`firstresult`. + + :param collection_path: The path to analyze. + :param path: The path to analyze (deprecated). + :param config: The pytest config object. + + .. versionchanged:: 7.0.0 + The ``collection_path`` parameter was added as a :class:`pathlib.Path` + equivalent of the ``path`` parameter. The ``path`` parameter + has been deprecated. + """ + + +def pytest_collect_file( + file_path: Path, path: "LEGACY_PATH", parent: "Collector" +) -> "Optional[Collector]": + """Create a :class:`~pytest.Collector` for the given path, or None if not relevant. + + The new node needs to have the specified ``parent`` as a parent. + + :param file_path: The path to analyze. + :param path: The path to collect (deprecated). + + .. versionchanged:: 7.0.0 + The ``file_path`` parameter was added as a :class:`pathlib.Path` + equivalent of the ``path`` parameter. The ``path`` parameter + has been deprecated. + """ + + +# logging hooks for collection + + +def pytest_collectstart(collector: "Collector") -> None: + """Collector starts collecting. + + :param collector: + The collector. + """ + + +def pytest_itemcollected(item: "Item") -> None: + """We just collected a test item. + + :param item: + The item. + """ + + +def pytest_collectreport(report: "CollectReport") -> None: + """Collector finished collecting. + + :param report: + The collect report. + """ + + +def pytest_deselected(items: Sequence["Item"]) -> None: + """Called for deselected test items, e.g. by keyword. + + May be called multiple times. + + :param items: + The items. + """ + + +@hookspec(firstresult=True) +def pytest_make_collect_report(collector: "Collector") -> "Optional[CollectReport]": + """Perform :func:`collector.collect() ` and return + a :class:`~pytest.CollectReport`. + + Stops at first non-None result, see :ref:`firstresult`. + + :param collector: + The collector. + """ + + +# ------------------------------------------------------------------------- +# Python test function related hooks +# ------------------------------------------------------------------------- + + +@hookspec(firstresult=True) +def pytest_pycollect_makemodule( + module_path: Path, path: "LEGACY_PATH", parent +) -> Optional["Module"]: + """Return a :class:`pytest.Module` collector or None for the given path. + + This hook will be called for each matching test module path. + The :hook:`pytest_collect_file` hook needs to be used if you want to + create test modules for files that do not match as a test module. + + Stops at first non-None result, see :ref:`firstresult`. + + :param module_path: The path of the module to collect. + :param path: The path of the module to collect (deprecated). + + .. versionchanged:: 7.0.0 + The ``module_path`` parameter was added as a :class:`pathlib.Path` + equivalent of the ``path`` parameter. + + The ``path`` parameter has been deprecated in favor of ``fspath``. + """ + + +@hookspec(firstresult=True) +def pytest_pycollect_makeitem( + collector: Union["Module", "Class"], name: str, obj: object +) -> Union[None, "Item", "Collector", List[Union["Item", "Collector"]]]: + """Return a custom item/collector for a Python object in a module, or None. + + Stops at first non-None result, see :ref:`firstresult`. + + :param collector: + The module/class collector. + :param name: + The name of the object in the module/class. + :param obj: + The object. + :returns: + The created items/collectors. + """ + + +@hookspec(firstresult=True) +def pytest_pyfunc_call(pyfuncitem: "Function") -> Optional[object]: + """Call underlying test function. + + Stops at first non-None result, see :ref:`firstresult`. + + :param pyfuncitem: + The function item. + """ + + +def pytest_generate_tests(metafunc: "Metafunc") -> None: + """Generate (multiple) parametrized calls to a test function. + + :param metafunc: + The :class:`~pytest.Metafunc` helper for the test function. + """ + + +@hookspec(firstresult=True) +def pytest_make_parametrize_id( + config: "Config", val: object, argname: str +) -> Optional[str]: + """Return a user-friendly string representation of the given ``val`` + that will be used by @pytest.mark.parametrize calls, or None if the hook + doesn't know about ``val``. + + The parameter name is available as ``argname``, if required. + + Stops at first non-None result, see :ref:`firstresult`. + + :param config: The pytest config object. + :param val: The parametrized value. + :param str argname: The automatic parameter name produced by pytest. + """ + + +# ------------------------------------------------------------------------- +# runtest related hooks +# ------------------------------------------------------------------------- + + +@hookspec(firstresult=True) +def pytest_runtestloop(session: "Session") -> Optional[object]: + """Perform the main runtest loop (after collection finished). + + The default hook implementation performs the runtest protocol for all items + collected in the session (``session.items``), unless the collection failed + or the ``collectonly`` pytest option is set. + + If at any point :py:func:`pytest.exit` is called, the loop is + terminated immediately. + + If at any point ``session.shouldfail`` or ``session.shouldstop`` are set, the + loop is terminated after the runtest protocol for the current item is finished. + + :param session: The pytest session object. + + Stops at first non-None result, see :ref:`firstresult`. + The return value is not used, but only stops further processing. + """ + + +@hookspec(firstresult=True) +def pytest_runtest_protocol( + item: "Item", nextitem: "Optional[Item]" +) -> Optional[object]: + """Perform the runtest protocol for a single test item. + + The default runtest protocol is this (see individual hooks for full details): + + - ``pytest_runtest_logstart(nodeid, location)`` + + - Setup phase: + - ``call = pytest_runtest_setup(item)`` (wrapped in ``CallInfo(when="setup")``) + - ``report = pytest_runtest_makereport(item, call)`` + - ``pytest_runtest_logreport(report)`` + - ``pytest_exception_interact(call, report)`` if an interactive exception occurred + + - Call phase, if the the setup passed and the ``setuponly`` pytest option is not set: + - ``call = pytest_runtest_call(item)`` (wrapped in ``CallInfo(when="call")``) + - ``report = pytest_runtest_makereport(item, call)`` + - ``pytest_runtest_logreport(report)`` + - ``pytest_exception_interact(call, report)`` if an interactive exception occurred + + - Teardown phase: + - ``call = pytest_runtest_teardown(item, nextitem)`` (wrapped in ``CallInfo(when="teardown")``) + - ``report = pytest_runtest_makereport(item, call)`` + - ``pytest_runtest_logreport(report)`` + - ``pytest_exception_interact(call, report)`` if an interactive exception occurred + + - ``pytest_runtest_logfinish(nodeid, location)`` + + :param item: Test item for which the runtest protocol is performed. + :param nextitem: The scheduled-to-be-next test item (or None if this is the end my friend). + + Stops at first non-None result, see :ref:`firstresult`. + The return value is not used, but only stops further processing. + """ + + +def pytest_runtest_logstart( + nodeid: str, location: Tuple[str, Optional[int], str] +) -> None: + """Called at the start of running the runtest protocol for a single item. + + See :hook:`pytest_runtest_protocol` for a description of the runtest protocol. + + :param nodeid: Full node ID of the item. + :param location: A tuple of ``(filename, lineno, testname)``. + """ + + +def pytest_runtest_logfinish( + nodeid: str, location: Tuple[str, Optional[int], str] +) -> None: + """Called at the end of running the runtest protocol for a single item. + + See :hook:`pytest_runtest_protocol` for a description of the runtest protocol. + + :param nodeid: Full node ID of the item. + :param location: A tuple of ``(filename, lineno, testname)``. + """ + + +def pytest_runtest_setup(item: "Item") -> None: + """Called to perform the setup phase for a test item. + + The default implementation runs ``setup()`` on ``item`` and all of its + parents (which haven't been setup yet). This includes obtaining the + values of fixtures required by the item (which haven't been obtained + yet). + + :param item: + The item. + """ + + +def pytest_runtest_call(item: "Item") -> None: + """Called to run the test for test item (the call phase). + + The default implementation calls ``item.runtest()``. + + :param item: + The item. + """ + + +def pytest_runtest_teardown(item: "Item", nextitem: Optional["Item"]) -> None: + """Called to perform the teardown phase for a test item. + + The default implementation runs the finalizers and calls ``teardown()`` + on ``item`` and all of its parents (which need to be torn down). This + includes running the teardown phase of fixtures required by the item (if + they go out of scope). + + :param item: + The item. + :param nextitem: + The scheduled-to-be-next test item (None if no further test item is + scheduled). This argument is used to perform exact teardowns, i.e. + calling just enough finalizers so that nextitem only needs to call + setup functions. + """ + + +@hookspec(firstresult=True) +def pytest_runtest_makereport( + item: "Item", call: "CallInfo[None]" +) -> Optional["TestReport"]: + """Called to create a :class:`~pytest.TestReport` for each of + the setup, call and teardown runtest phases of a test item. + + See :hook:`pytest_runtest_protocol` for a description of the runtest protocol. + + :param item: The item. + :param call: The :class:`~pytest.CallInfo` for the phase. + + Stops at first non-None result, see :ref:`firstresult`. + """ + + +def pytest_runtest_logreport(report: "TestReport") -> None: + """Process the :class:`~pytest.TestReport` produced for each + of the setup, call and teardown runtest phases of an item. + + See :hook:`pytest_runtest_protocol` for a description of the runtest protocol. + """ + + +@hookspec(firstresult=True) +def pytest_report_to_serializable( + config: "Config", + report: Union["CollectReport", "TestReport"], +) -> Optional[Dict[str, Any]]: + """Serialize the given report object into a data structure suitable for + sending over the wire, e.g. converted to JSON. + + :param config: The pytest config object. + :param report: The report. + """ + + +@hookspec(firstresult=True) +def pytest_report_from_serializable( + config: "Config", + data: Dict[str, Any], +) -> Optional[Union["CollectReport", "TestReport"]]: + """Restore a report object previously serialized with + :hook:`pytest_report_to_serializable`. + + :param config: The pytest config object. + """ + + +# ------------------------------------------------------------------------- +# Fixture related hooks +# ------------------------------------------------------------------------- + + +@hookspec(firstresult=True) +def pytest_fixture_setup( + fixturedef: "FixtureDef[Any]", request: "SubRequest" +) -> Optional[object]: + """Perform fixture setup execution. + + :param fixturdef: + The fixture definition object. + :param request: + The fixture request object. + :returns: + The return value of the call to the fixture function. + + Stops at first non-None result, see :ref:`firstresult`. + + .. note:: + If the fixture function returns None, other implementations of + this hook function will continue to be called, according to the + behavior of the :ref:`firstresult` option. + """ + + +def pytest_fixture_post_finalizer( + fixturedef: "FixtureDef[Any]", request: "SubRequest" +) -> None: + """Called after fixture teardown, but before the cache is cleared, so + the fixture result ``fixturedef.cached_result`` is still available (not + ``None``). + + :param fixturdef: + The fixture definition object. + :param request: + The fixture request object. + """ + + +# ------------------------------------------------------------------------- +# test session related hooks +# ------------------------------------------------------------------------- + + +def pytest_sessionstart(session: "Session") -> None: + """Called after the ``Session`` object has been created and before performing collection + and entering the run test loop. + + :param session: The pytest session object. + """ + + +def pytest_sessionfinish( + session: "Session", + exitstatus: Union[int, "ExitCode"], +) -> None: + """Called after whole test run finished, right before returning the exit status to the system. + + :param session: The pytest session object. + :param exitstatus: The status which pytest will return to the system. + """ + + +def pytest_unconfigure(config: "Config") -> None: + """Called before test process is exited. + + :param config: The pytest config object. + """ + + +# ------------------------------------------------------------------------- +# hooks for customizing the assert methods +# ------------------------------------------------------------------------- + + +def pytest_assertrepr_compare( + config: "Config", op: str, left: object, right: object +) -> Optional[List[str]]: + """Return explanation for comparisons in failing assert expressions. + + Return None for no custom explanation, otherwise return a list + of strings. The strings will be joined by newlines but any newlines + *in* a string will be escaped. Note that all but the first line will + be indented slightly, the intention is for the first line to be a summary. + + :param config: The pytest config object. + :param op: The operator, e.g. `"=="`, `"!="`, `"not in"`. + :param left: The left operand. + :param right: The right operand. + """ + + +def pytest_assertion_pass(item: "Item", lineno: int, orig: str, expl: str) -> None: + """Called whenever an assertion passes. + + .. versionadded:: 5.0 + + Use this hook to do some processing after a passing assertion. + The original assertion information is available in the `orig` string + and the pytest introspected assertion information is available in the + `expl` string. + + This hook must be explicitly enabled by the ``enable_assertion_pass_hook`` + ini-file option: + + .. code-block:: ini + + [pytest] + enable_assertion_pass_hook=true + + You need to **clean the .pyc** files in your project directory and interpreter libraries + when enabling this option, as assertions will require to be re-written. + + :param item: pytest item object of current test. + :param lineno: Line number of the assert statement. + :param orig: String with the original assertion. + :param expl: String with the assert explanation. + """ + + +# ------------------------------------------------------------------------- +# Hooks for influencing reporting (invoked from _pytest_terminal). +# ------------------------------------------------------------------------- + + +def pytest_report_header( + config: "Config", start_path: Path, startdir: "LEGACY_PATH" +) -> Union[str, List[str]]: + """Return a string or list of strings to be displayed as header info for terminal reporting. + + :param config: The pytest config object. + :param start_path: The starting dir. + :param startdir: The starting dir (deprecated). + + .. note:: + + Lines returned by a plugin are displayed before those of plugins which + ran before it. + If you want to have your line(s) displayed first, use + :ref:`trylast=True `. + + .. note:: + + This function should be implemented only in plugins or ``conftest.py`` + files situated at the tests root directory due to how pytest + :ref:`discovers plugins during startup `. + + .. versionchanged:: 7.0.0 + The ``start_path`` parameter was added as a :class:`pathlib.Path` + equivalent of the ``startdir`` parameter. The ``startdir`` parameter + has been deprecated. + """ + + +def pytest_report_collectionfinish( + config: "Config", + start_path: Path, + startdir: "LEGACY_PATH", + items: Sequence["Item"], +) -> Union[str, List[str]]: + """Return a string or list of strings to be displayed after collection + has finished successfully. + + These strings will be displayed after the standard "collected X items" message. + + .. versionadded:: 3.2 + + :param config: The pytest config object. + :param start_path: The starting dir. + :param startdir: The starting dir (deprecated). + :param items: List of pytest items that are going to be executed; this list should not be modified. + + .. note:: + + Lines returned by a plugin are displayed before those of plugins which + ran before it. + If you want to have your line(s) displayed first, use + :ref:`trylast=True `. + + .. versionchanged:: 7.0.0 + The ``start_path`` parameter was added as a :class:`pathlib.Path` + equivalent of the ``startdir`` parameter. The ``startdir`` parameter + has been deprecated. + """ + + +@hookspec(firstresult=True) +def pytest_report_teststatus( + report: Union["CollectReport", "TestReport"], config: "Config" +) -> Tuple[str, str, Union[str, Mapping[str, bool]]]: + """Return result-category, shortletter and verbose word for status + reporting. + + The result-category is a category in which to count the result, for + example "passed", "skipped", "error" or the empty string. + + The shortletter is shown as testing progresses, for example ".", "s", + "E" or the empty string. + + The verbose word is shown as testing progresses in verbose mode, for + example "PASSED", "SKIPPED", "ERROR" or the empty string. + + pytest may style these implicitly according to the report outcome. + To provide explicit styling, return a tuple for the verbose word, + for example ``"rerun", "R", ("RERUN", {"yellow": True})``. + + :param report: The report object whose status is to be returned. + :param config: The pytest config object. + :returns: The test status. + + Stops at first non-None result, see :ref:`firstresult`. + """ + + +def pytest_terminal_summary( + terminalreporter: "TerminalReporter", + exitstatus: "ExitCode", + config: "Config", +) -> None: + """Add a section to terminal summary reporting. + + :param terminalreporter: The internal terminal reporter object. + :param exitstatus: The exit status that will be reported back to the OS. + :param config: The pytest config object. + + .. versionadded:: 4.2 + The ``config`` parameter. + """ + + +@hookspec(historic=True) +def pytest_warning_recorded( + warning_message: "warnings.WarningMessage", + when: "Literal['config', 'collect', 'runtest']", + nodeid: str, + location: Optional[Tuple[str, int, str]], +) -> None: + """Process a warning captured by the internal pytest warnings plugin. + + :param warning_message: + The captured warning. This is the same object produced by :py:func:`warnings.catch_warnings`, and contains + the same attributes as the parameters of :py:func:`warnings.showwarning`. + + :param when: + Indicates when the warning was captured. Possible values: + + * ``"config"``: during pytest configuration/initialization stage. + * ``"collect"``: during test collection. + * ``"runtest"``: during test execution. + + :param nodeid: + Full id of the item. + + :param location: + When available, holds information about the execution context of the captured + warning (filename, linenumber, function). ``function`` evaluates to + when the execution context is at the module level. + + .. versionadded:: 6.0 + """ + + +# ------------------------------------------------------------------------- +# Hooks for influencing skipping +# ------------------------------------------------------------------------- + + +def pytest_markeval_namespace(config: "Config") -> Dict[str, Any]: + """Called when constructing the globals dictionary used for + evaluating string conditions in xfail/skipif markers. + + This is useful when the condition for a marker requires + objects that are expensive or impossible to obtain during + collection time, which is required by normal boolean + conditions. + + .. versionadded:: 6.2 + + :param config: The pytest config object. + :returns: A dictionary of additional globals to add. + """ + + +# ------------------------------------------------------------------------- +# error handling and internal debugging hooks +# ------------------------------------------------------------------------- + + +def pytest_internalerror( + excrepr: "ExceptionRepr", + excinfo: "ExceptionInfo[BaseException]", +) -> Optional[bool]: + """Called for internal errors. + + Return True to suppress the fallback handling of printing an + INTERNALERROR message directly to sys.stderr. + + :param excrepr: The exception repr object. + :param excinfo: The exception info. + """ + + +def pytest_keyboard_interrupt( + excinfo: "ExceptionInfo[Union[KeyboardInterrupt, Exit]]", +) -> None: + """Called for keyboard interrupt. + + :param excinfo: The exception info. + """ + + +def pytest_exception_interact( + node: Union["Item", "Collector"], + call: "CallInfo[Any]", + report: Union["CollectReport", "TestReport"], +) -> None: + """Called when an exception was raised which can potentially be + interactively handled. + + May be called during collection (see :hook:`pytest_make_collect_report`), + in which case ``report`` is a :class:`CollectReport`. + + May be called during runtest of an item (see :hook:`pytest_runtest_protocol`), + in which case ``report`` is a :class:`TestReport`. + + This hook is not called if the exception that was raised is an internal + exception like ``skip.Exception``. + + :param node: + The item or collector. + :param call: + The call information. Contains the exception. + :param report: + The collection or test report. + """ + + +def pytest_enter_pdb(config: "Config", pdb: "pdb.Pdb") -> None: + """Called upon pdb.set_trace(). + + Can be used by plugins to take special action just before the python + debugger enters interactive mode. + + :param config: The pytest config object. + :param pdb: The Pdb instance. + """ + + +def pytest_leave_pdb(config: "Config", pdb: "pdb.Pdb") -> None: + """Called when leaving pdb (e.g. with continue after pdb.set_trace()). + + Can be used by plugins to take special action just after the python + debugger leaves interactive mode. + + :param config: The pytest config object. + :param pdb: The Pdb instance. + """ diff --git a/utils/python-venv/Lib/site-packages/_pytest/junitxml.py b/utils/python-venv/Lib/site-packages/_pytest/junitxml.py new file mode 100644 index 0000000..7a5170f --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/junitxml.py @@ -0,0 +1,699 @@ +"""Report test results in JUnit-XML format, for use with Jenkins and build +integration servers. + +Based on initial code from Ross Lawley. + +Output conforms to +https://github.com/jenkinsci/xunit-plugin/blob/master/src/main/resources/org/jenkinsci/plugins/xunit/types/model/xsd/junit-10.xsd +""" +import functools +import os +import platform +import re +import xml.etree.ElementTree as ET +from datetime import datetime +from typing import Callable +from typing import Dict +from typing import List +from typing import Match +from typing import Optional +from typing import Tuple +from typing import Union + +import pytest +from _pytest import nodes +from _pytest import timing +from _pytest._code.code import ExceptionRepr +from _pytest._code.code import ReprFileLocation +from _pytest.config import Config +from _pytest.config import filename_arg +from _pytest.config.argparsing import Parser +from _pytest.fixtures import FixtureRequest +from _pytest.reports import TestReport +from _pytest.stash import StashKey +from _pytest.terminal import TerminalReporter + + +xml_key = StashKey["LogXML"]() + + +def bin_xml_escape(arg: object) -> str: + r"""Visually escape invalid XML characters. + + For example, transforms + 'hello\aworld\b' + into + 'hello#x07world#x08' + Note that the #xABs are *not* XML escapes - missing the ampersand «. + The idea is to escape visually for the user rather than for XML itself. + """ + + def repl(matchobj: Match[str]) -> str: + i = ord(matchobj.group()) + if i <= 0xFF: + return "#x%02X" % i + else: + return "#x%04X" % i + + # The spec range of valid chars is: + # Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF] + # For an unknown(?) reason, we disallow #x7F (DEL) as well. + illegal_xml_re = ( + "[^\u0009\u000A\u000D\u0020-\u007E\u0080-\uD7FF\uE000-\uFFFD\u10000-\u10FFFF]" + ) + return re.sub(illegal_xml_re, repl, str(arg)) + + +def merge_family(left, right) -> None: + result = {} + for kl, vl in left.items(): + for kr, vr in right.items(): + if not isinstance(vl, list): + raise TypeError(type(vl)) + result[kl] = vl + vr + left.update(result) + + +families = {} +families["_base"] = {"testcase": ["classname", "name"]} +families["_base_legacy"] = {"testcase": ["file", "line", "url"]} + +# xUnit 1.x inherits legacy attributes. +families["xunit1"] = families["_base"].copy() +merge_family(families["xunit1"], families["_base_legacy"]) + +# xUnit 2.x uses strict base attributes. +families["xunit2"] = families["_base"] + + +class _NodeReporter: + def __init__(self, nodeid: Union[str, TestReport], xml: "LogXML") -> None: + self.id = nodeid + self.xml = xml + self.add_stats = self.xml.add_stats + self.family = self.xml.family + self.duration = 0.0 + self.properties: List[Tuple[str, str]] = [] + self.nodes: List[ET.Element] = [] + self.attrs: Dict[str, str] = {} + + def append(self, node: ET.Element) -> None: + self.xml.add_stats(node.tag) + self.nodes.append(node) + + def add_property(self, name: str, value: object) -> None: + self.properties.append((str(name), bin_xml_escape(value))) + + def add_attribute(self, name: str, value: object) -> None: + self.attrs[str(name)] = bin_xml_escape(value) + + def make_properties_node(self) -> Optional[ET.Element]: + """Return a Junit node containing custom properties, if any.""" + if self.properties: + properties = ET.Element("properties") + for name, value in self.properties: + properties.append(ET.Element("property", name=name, value=value)) + return properties + return None + + def record_testreport(self, testreport: TestReport) -> None: + names = mangle_test_address(testreport.nodeid) + existing_attrs = self.attrs + classnames = names[:-1] + if self.xml.prefix: + classnames.insert(0, self.xml.prefix) + attrs: Dict[str, str] = { + "classname": ".".join(classnames), + "name": bin_xml_escape(names[-1]), + "file": testreport.location[0], + } + if testreport.location[1] is not None: + attrs["line"] = str(testreport.location[1]) + if hasattr(testreport, "url"): + attrs["url"] = testreport.url + self.attrs = attrs + self.attrs.update(existing_attrs) # Restore any user-defined attributes. + + # Preserve legacy testcase behavior. + if self.family == "xunit1": + return + + # Filter out attributes not permitted by this test family. + # Including custom attributes because they are not valid here. + temp_attrs = {} + for key in self.attrs.keys(): + if key in families[self.family]["testcase"]: + temp_attrs[key] = self.attrs[key] + self.attrs = temp_attrs + + def to_xml(self) -> ET.Element: + testcase = ET.Element("testcase", self.attrs, time="%.3f" % self.duration) + properties = self.make_properties_node() + if properties is not None: + testcase.append(properties) + testcase.extend(self.nodes) + return testcase + + def _add_simple(self, tag: str, message: str, data: Optional[str] = None) -> None: + node = ET.Element(tag, message=message) + node.text = bin_xml_escape(data) + self.append(node) + + def write_captured_output(self, report: TestReport) -> None: + if not self.xml.log_passing_tests and report.passed: + return + + content_out = report.capstdout + content_log = report.caplog + content_err = report.capstderr + if self.xml.logging == "no": + return + content_all = "" + if self.xml.logging in ["log", "all"]: + content_all = self._prepare_content(content_log, " Captured Log ") + if self.xml.logging in ["system-out", "out-err", "all"]: + content_all += self._prepare_content(content_out, " Captured Out ") + self._write_content(report, content_all, "system-out") + content_all = "" + if self.xml.logging in ["system-err", "out-err", "all"]: + content_all += self._prepare_content(content_err, " Captured Err ") + self._write_content(report, content_all, "system-err") + content_all = "" + if content_all: + self._write_content(report, content_all, "system-out") + + def _prepare_content(self, content: str, header: str) -> str: + return "\n".join([header.center(80, "-"), content, ""]) + + def _write_content(self, report: TestReport, content: str, jheader: str) -> None: + tag = ET.Element(jheader) + tag.text = bin_xml_escape(content) + self.append(tag) + + def append_pass(self, report: TestReport) -> None: + self.add_stats("passed") + + def append_failure(self, report: TestReport) -> None: + # msg = str(report.longrepr.reprtraceback.extraline) + if hasattr(report, "wasxfail"): + self._add_simple("skipped", "xfail-marked test passes unexpectedly") + else: + assert report.longrepr is not None + reprcrash: Optional[ReprFileLocation] = getattr( + report.longrepr, "reprcrash", None + ) + if reprcrash is not None: + message = reprcrash.message + else: + message = str(report.longrepr) + message = bin_xml_escape(message) + self._add_simple("failure", message, str(report.longrepr)) + + def append_collect_error(self, report: TestReport) -> None: + # msg = str(report.longrepr.reprtraceback.extraline) + assert report.longrepr is not None + self._add_simple("error", "collection failure", str(report.longrepr)) + + def append_collect_skipped(self, report: TestReport) -> None: + self._add_simple("skipped", "collection skipped", str(report.longrepr)) + + def append_error(self, report: TestReport) -> None: + assert report.longrepr is not None + reprcrash: Optional[ReprFileLocation] = getattr( + report.longrepr, "reprcrash", None + ) + if reprcrash is not None: + reason = reprcrash.message + else: + reason = str(report.longrepr) + + if report.when == "teardown": + msg = f'failed on teardown with "{reason}"' + else: + msg = f'failed on setup with "{reason}"' + self._add_simple("error", bin_xml_escape(msg), str(report.longrepr)) + + def append_skipped(self, report: TestReport) -> None: + if hasattr(report, "wasxfail"): + xfailreason = report.wasxfail + if xfailreason.startswith("reason: "): + xfailreason = xfailreason[8:] + xfailreason = bin_xml_escape(xfailreason) + skipped = ET.Element("skipped", type="pytest.xfail", message=xfailreason) + self.append(skipped) + else: + assert isinstance(report.longrepr, tuple) + filename, lineno, skipreason = report.longrepr + if skipreason.startswith("Skipped: "): + skipreason = skipreason[9:] + details = f"{filename}:{lineno}: {skipreason}" + + skipped = ET.Element("skipped", type="pytest.skip", message=skipreason) + skipped.text = bin_xml_escape(details) + self.append(skipped) + self.write_captured_output(report) + + def finalize(self) -> None: + data = self.to_xml() + self.__dict__.clear() + # Type ignored because mypy doesn't like overriding a method. + # Also the return value doesn't match... + self.to_xml = lambda: data # type: ignore[assignment] + + +def _warn_incompatibility_with_xunit2( + request: FixtureRequest, fixture_name: str +) -> None: + """Emit a PytestWarning about the given fixture being incompatible with newer xunit revisions.""" + from _pytest.warning_types import PytestWarning + + xml = request.config.stash.get(xml_key, None) + if xml is not None and xml.family not in ("xunit1", "legacy"): + request.node.warn( + PytestWarning( + "{fixture_name} is incompatible with junit_family '{family}' (use 'legacy' or 'xunit1')".format( + fixture_name=fixture_name, family=xml.family + ) + ) + ) + + +@pytest.fixture +def record_property(request: FixtureRequest) -> Callable[[str, object], None]: + """Add extra properties to the calling test. + + User properties become part of the test report and are available to the + configured reporters, like JUnit XML. + + The fixture is callable with ``name, value``. The value is automatically + XML-encoded. + + Example:: + + def test_function(record_property): + record_property("example_key", 1) + """ + _warn_incompatibility_with_xunit2(request, "record_property") + + def append_property(name: str, value: object) -> None: + request.node.user_properties.append((name, value)) + + return append_property + + +@pytest.fixture +def record_xml_attribute(request: FixtureRequest) -> Callable[[str, object], None]: + """Add extra xml attributes to the tag for the calling test. + + The fixture is callable with ``name, value``. The value is + automatically XML-encoded. + """ + from _pytest.warning_types import PytestExperimentalApiWarning + + request.node.warn( + PytestExperimentalApiWarning("record_xml_attribute is an experimental feature") + ) + + _warn_incompatibility_with_xunit2(request, "record_xml_attribute") + + # Declare noop + def add_attr_noop(name: str, value: object) -> None: + pass + + attr_func = add_attr_noop + + xml = request.config.stash.get(xml_key, None) + if xml is not None: + node_reporter = xml.node_reporter(request.node.nodeid) + attr_func = node_reporter.add_attribute + + return attr_func + + +def _check_record_param_type(param: str, v: str) -> None: + """Used by record_testsuite_property to check that the given parameter name is of the proper + type.""" + __tracebackhide__ = True + if not isinstance(v, str): + msg = "{param} parameter needs to be a string, but {g} given" # type: ignore[unreachable] + raise TypeError(msg.format(param=param, g=type(v).__name__)) + + +@pytest.fixture(scope="session") +def record_testsuite_property(request: FixtureRequest) -> Callable[[str, object], None]: + """Record a new ```` tag as child of the root ````. + + This is suitable to writing global information regarding the entire test + suite, and is compatible with ``xunit2`` JUnit family. + + This is a ``session``-scoped fixture which is called with ``(name, value)``. Example: + + .. code-block:: python + + def test_foo(record_testsuite_property): + record_testsuite_property("ARCH", "PPC") + record_testsuite_property("STORAGE_TYPE", "CEPH") + + :param name: + The property name. + :param value: + The property value. Will be converted to a string. + + .. warning:: + + Currently this fixture **does not work** with the + `pytest-xdist `__ plugin. See + :issue:`7767` for details. + """ + + __tracebackhide__ = True + + def record_func(name: str, value: object) -> None: + """No-op function in case --junitxml was not passed in the command-line.""" + __tracebackhide__ = True + _check_record_param_type("name", name) + + xml = request.config.stash.get(xml_key, None) + if xml is not None: + record_func = xml.add_global_property # noqa + return record_func + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("terminal reporting") + group.addoption( + "--junitxml", + "--junit-xml", + action="store", + dest="xmlpath", + metavar="path", + type=functools.partial(filename_arg, optname="--junitxml"), + default=None, + help="Create junit-xml style report file at given path", + ) + group.addoption( + "--junitprefix", + "--junit-prefix", + action="store", + metavar="str", + default=None, + help="Prepend prefix to classnames in junit-xml output", + ) + parser.addini( + "junit_suite_name", "Test suite name for JUnit report", default="pytest" + ) + parser.addini( + "junit_logging", + "Write captured log messages to JUnit report: " + "one of no|log|system-out|system-err|out-err|all", + default="no", + ) + parser.addini( + "junit_log_passing_tests", + "Capture log information for passing tests to JUnit report: ", + type="bool", + default=True, + ) + parser.addini( + "junit_duration_report", + "Duration time to report: one of total|call", + default="total", + ) # choices=['total', 'call']) + parser.addini( + "junit_family", + "Emit XML for schema: one of legacy|xunit1|xunit2", + default="xunit2", + ) + + +def pytest_configure(config: Config) -> None: + xmlpath = config.option.xmlpath + # Prevent opening xmllog on worker nodes (xdist). + if xmlpath and not hasattr(config, "workerinput"): + junit_family = config.getini("junit_family") + config.stash[xml_key] = LogXML( + xmlpath, + config.option.junitprefix, + config.getini("junit_suite_name"), + config.getini("junit_logging"), + config.getini("junit_duration_report"), + junit_family, + config.getini("junit_log_passing_tests"), + ) + config.pluginmanager.register(config.stash[xml_key]) + + +def pytest_unconfigure(config: Config) -> None: + xml = config.stash.get(xml_key, None) + if xml: + del config.stash[xml_key] + config.pluginmanager.unregister(xml) + + +def mangle_test_address(address: str) -> List[str]: + path, possible_open_bracket, params = address.partition("[") + names = path.split("::") + # Convert file path to dotted path. + names[0] = names[0].replace(nodes.SEP, ".") + names[0] = re.sub(r"\.py$", "", names[0]) + # Put any params back. + names[-1] += possible_open_bracket + params + return names + + +class LogXML: + def __init__( + self, + logfile, + prefix: Optional[str], + suite_name: str = "pytest", + logging: str = "no", + report_duration: str = "total", + family="xunit1", + log_passing_tests: bool = True, + ) -> None: + logfile = os.path.expanduser(os.path.expandvars(logfile)) + self.logfile = os.path.normpath(os.path.abspath(logfile)) + self.prefix = prefix + self.suite_name = suite_name + self.logging = logging + self.log_passing_tests = log_passing_tests + self.report_duration = report_duration + self.family = family + self.stats: Dict[str, int] = dict.fromkeys( + ["error", "passed", "failure", "skipped"], 0 + ) + self.node_reporters: Dict[ + Tuple[Union[str, TestReport], object], _NodeReporter + ] = {} + self.node_reporters_ordered: List[_NodeReporter] = [] + self.global_properties: List[Tuple[str, str]] = [] + + # List of reports that failed on call but teardown is pending. + self.open_reports: List[TestReport] = [] + self.cnt_double_fail_tests = 0 + + # Replaces convenience family with real family. + if self.family == "legacy": + self.family = "xunit1" + + def finalize(self, report: TestReport) -> None: + nodeid = getattr(report, "nodeid", report) + # Local hack to handle xdist report order. + workernode = getattr(report, "node", None) + reporter = self.node_reporters.pop((nodeid, workernode)) + if reporter is not None: + reporter.finalize() + + def node_reporter(self, report: Union[TestReport, str]) -> _NodeReporter: + nodeid: Union[str, TestReport] = getattr(report, "nodeid", report) + # Local hack to handle xdist report order. + workernode = getattr(report, "node", None) + + key = nodeid, workernode + + if key in self.node_reporters: + # TODO: breaks for --dist=each + return self.node_reporters[key] + + reporter = _NodeReporter(nodeid, self) + + self.node_reporters[key] = reporter + self.node_reporters_ordered.append(reporter) + + return reporter + + def add_stats(self, key: str) -> None: + if key in self.stats: + self.stats[key] += 1 + + def _opentestcase(self, report: TestReport) -> _NodeReporter: + reporter = self.node_reporter(report) + reporter.record_testreport(report) + return reporter + + def pytest_runtest_logreport(self, report: TestReport) -> None: + """Handle a setup/call/teardown report, generating the appropriate + XML tags as necessary. + + Note: due to plugins like xdist, this hook may be called in interlaced + order with reports from other nodes. For example: + + Usual call order: + -> setup node1 + -> call node1 + -> teardown node1 + -> setup node2 + -> call node2 + -> teardown node2 + + Possible call order in xdist: + -> setup node1 + -> call node1 + -> setup node2 + -> call node2 + -> teardown node2 + -> teardown node1 + """ + close_report = None + if report.passed: + if report.when == "call": # ignore setup/teardown + reporter = self._opentestcase(report) + reporter.append_pass(report) + elif report.failed: + if report.when == "teardown": + # The following vars are needed when xdist plugin is used. + report_wid = getattr(report, "worker_id", None) + report_ii = getattr(report, "item_index", None) + close_report = next( + ( + rep + for rep in self.open_reports + if ( + rep.nodeid == report.nodeid + and getattr(rep, "item_index", None) == report_ii + and getattr(rep, "worker_id", None) == report_wid + ) + ), + None, + ) + if close_report: + # We need to open new testcase in case we have failure in + # call and error in teardown in order to follow junit + # schema. + self.finalize(close_report) + self.cnt_double_fail_tests += 1 + reporter = self._opentestcase(report) + if report.when == "call": + reporter.append_failure(report) + self.open_reports.append(report) + if not self.log_passing_tests: + reporter.write_captured_output(report) + else: + reporter.append_error(report) + elif report.skipped: + reporter = self._opentestcase(report) + reporter.append_skipped(report) + self.update_testcase_duration(report) + if report.when == "teardown": + reporter = self._opentestcase(report) + reporter.write_captured_output(report) + + for propname, propvalue in report.user_properties: + reporter.add_property(propname, str(propvalue)) + + self.finalize(report) + report_wid = getattr(report, "worker_id", None) + report_ii = getattr(report, "item_index", None) + close_report = next( + ( + rep + for rep in self.open_reports + if ( + rep.nodeid == report.nodeid + and getattr(rep, "item_index", None) == report_ii + and getattr(rep, "worker_id", None) == report_wid + ) + ), + None, + ) + if close_report: + self.open_reports.remove(close_report) + + def update_testcase_duration(self, report: TestReport) -> None: + """Accumulate total duration for nodeid from given report and update + the Junit.testcase with the new total if already created.""" + if self.report_duration == "total" or report.when == self.report_duration: + reporter = self.node_reporter(report) + reporter.duration += getattr(report, "duration", 0.0) + + def pytest_collectreport(self, report: TestReport) -> None: + if not report.passed: + reporter = self._opentestcase(report) + if report.failed: + reporter.append_collect_error(report) + else: + reporter.append_collect_skipped(report) + + def pytest_internalerror(self, excrepr: ExceptionRepr) -> None: + reporter = self.node_reporter("internal") + reporter.attrs.update(classname="pytest", name="internal") + reporter._add_simple("error", "internal error", str(excrepr)) + + def pytest_sessionstart(self) -> None: + self.suite_start_time = timing.time() + + def pytest_sessionfinish(self) -> None: + dirname = os.path.dirname(os.path.abspath(self.logfile)) + if not os.path.isdir(dirname): + os.makedirs(dirname) + + with open(self.logfile, "w", encoding="utf-8") as logfile: + suite_stop_time = timing.time() + suite_time_delta = suite_stop_time - self.suite_start_time + + numtests = ( + self.stats["passed"] + + self.stats["failure"] + + self.stats["skipped"] + + self.stats["error"] + - self.cnt_double_fail_tests + ) + logfile.write('') + + suite_node = ET.Element( + "testsuite", + name=self.suite_name, + errors=str(self.stats["error"]), + failures=str(self.stats["failure"]), + skipped=str(self.stats["skipped"]), + tests=str(numtests), + time="%.3f" % suite_time_delta, + timestamp=datetime.fromtimestamp(self.suite_start_time).isoformat(), + hostname=platform.node(), + ) + global_properties = self._get_global_properties_node() + if global_properties is not None: + suite_node.append(global_properties) + for node_reporter in self.node_reporters_ordered: + suite_node.append(node_reporter.to_xml()) + testsuites = ET.Element("testsuites") + testsuites.append(suite_node) + logfile.write(ET.tostring(testsuites, encoding="unicode")) + + def pytest_terminal_summary(self, terminalreporter: TerminalReporter) -> None: + terminalreporter.write_sep("-", f"generated xml file: {self.logfile}") + + def add_global_property(self, name: str, value: object) -> None: + __tracebackhide__ = True + _check_record_param_type("name", name) + self.global_properties.append((name, bin_xml_escape(value))) + + def _get_global_properties_node(self) -> Optional[ET.Element]: + """Return a Junit node containing custom properties, if any.""" + if self.global_properties: + properties = ET.Element("properties") + for name, value in self.global_properties: + properties.append(ET.Element("property", name=name, value=value)) + return properties + return None diff --git a/utils/python-venv/Lib/site-packages/_pytest/legacypath.py b/utils/python-venv/Lib/site-packages/_pytest/legacypath.py new file mode 100644 index 0000000..f71e7e9 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/legacypath.py @@ -0,0 +1,479 @@ +"""Add backward compatibility support for the legacy py path type.""" +import shlex +import subprocess +from pathlib import Path +from typing import List +from typing import Optional +from typing import TYPE_CHECKING +from typing import Union + +import attr +from iniconfig import SectionWrapper + +from _pytest.cacheprovider import Cache +from _pytest.compat import final +from _pytest.compat import LEGACY_PATH +from _pytest.compat import legacy_path +from _pytest.config import Config +from _pytest.config import hookimpl +from _pytest.config import PytestPluginManager +from _pytest.deprecated import check_ispytest +from _pytest.fixtures import fixture +from _pytest.fixtures import FixtureRequest +from _pytest.main import Session +from _pytest.monkeypatch import MonkeyPatch +from _pytest.nodes import Collector +from _pytest.nodes import Item +from _pytest.nodes import Node +from _pytest.pytester import HookRecorder +from _pytest.pytester import Pytester +from _pytest.pytester import RunResult +from _pytest.terminal import TerminalReporter +from _pytest.tmpdir import TempPathFactory + +if TYPE_CHECKING: + from typing_extensions import Final + + import pexpect + + +@final +class Testdir: + """ + Similar to :class:`Pytester`, but this class works with legacy legacy_path objects instead. + + All methods just forward to an internal :class:`Pytester` instance, converting results + to `legacy_path` objects as necessary. + """ + + __test__ = False + + CLOSE_STDIN: "Final" = Pytester.CLOSE_STDIN + TimeoutExpired: "Final" = Pytester.TimeoutExpired + + def __init__(self, pytester: Pytester, *, _ispytest: bool = False) -> None: + check_ispytest(_ispytest) + self._pytester = pytester + + @property + def tmpdir(self) -> LEGACY_PATH: + """Temporary directory where tests are executed.""" + return legacy_path(self._pytester.path) + + @property + def test_tmproot(self) -> LEGACY_PATH: + return legacy_path(self._pytester._test_tmproot) + + @property + def request(self): + return self._pytester._request + + @property + def plugins(self): + return self._pytester.plugins + + @plugins.setter + def plugins(self, plugins): + self._pytester.plugins = plugins + + @property + def monkeypatch(self) -> MonkeyPatch: + return self._pytester._monkeypatch + + def make_hook_recorder(self, pluginmanager) -> HookRecorder: + """See :meth:`Pytester.make_hook_recorder`.""" + return self._pytester.make_hook_recorder(pluginmanager) + + def chdir(self) -> None: + """See :meth:`Pytester.chdir`.""" + return self._pytester.chdir() + + def finalize(self) -> None: + """See :meth:`Pytester._finalize`.""" + return self._pytester._finalize() + + def makefile(self, ext, *args, **kwargs) -> LEGACY_PATH: + """See :meth:`Pytester.makefile`.""" + if ext and not ext.startswith("."): + # pytester.makefile is going to throw a ValueError in a way that + # testdir.makefile did not, because + # pathlib.Path is stricter suffixes than py.path + # This ext arguments is likely user error, but since testdir has + # allowed this, we will prepend "." as a workaround to avoid breaking + # testdir usage that worked before + ext = "." + ext + return legacy_path(self._pytester.makefile(ext, *args, **kwargs)) + + def makeconftest(self, source) -> LEGACY_PATH: + """See :meth:`Pytester.makeconftest`.""" + return legacy_path(self._pytester.makeconftest(source)) + + def makeini(self, source) -> LEGACY_PATH: + """See :meth:`Pytester.makeini`.""" + return legacy_path(self._pytester.makeini(source)) + + def getinicfg(self, source: str) -> SectionWrapper: + """See :meth:`Pytester.getinicfg`.""" + return self._pytester.getinicfg(source) + + def makepyprojecttoml(self, source) -> LEGACY_PATH: + """See :meth:`Pytester.makepyprojecttoml`.""" + return legacy_path(self._pytester.makepyprojecttoml(source)) + + def makepyfile(self, *args, **kwargs) -> LEGACY_PATH: + """See :meth:`Pytester.makepyfile`.""" + return legacy_path(self._pytester.makepyfile(*args, **kwargs)) + + def maketxtfile(self, *args, **kwargs) -> LEGACY_PATH: + """See :meth:`Pytester.maketxtfile`.""" + return legacy_path(self._pytester.maketxtfile(*args, **kwargs)) + + def syspathinsert(self, path=None) -> None: + """See :meth:`Pytester.syspathinsert`.""" + return self._pytester.syspathinsert(path) + + def mkdir(self, name) -> LEGACY_PATH: + """See :meth:`Pytester.mkdir`.""" + return legacy_path(self._pytester.mkdir(name)) + + def mkpydir(self, name) -> LEGACY_PATH: + """See :meth:`Pytester.mkpydir`.""" + return legacy_path(self._pytester.mkpydir(name)) + + def copy_example(self, name=None) -> LEGACY_PATH: + """See :meth:`Pytester.copy_example`.""" + return legacy_path(self._pytester.copy_example(name)) + + def getnode(self, config: Config, arg) -> Optional[Union[Item, Collector]]: + """See :meth:`Pytester.getnode`.""" + return self._pytester.getnode(config, arg) + + def getpathnode(self, path): + """See :meth:`Pytester.getpathnode`.""" + return self._pytester.getpathnode(path) + + def genitems(self, colitems: List[Union[Item, Collector]]) -> List[Item]: + """See :meth:`Pytester.genitems`.""" + return self._pytester.genitems(colitems) + + def runitem(self, source): + """See :meth:`Pytester.runitem`.""" + return self._pytester.runitem(source) + + def inline_runsource(self, source, *cmdlineargs): + """See :meth:`Pytester.inline_runsource`.""" + return self._pytester.inline_runsource(source, *cmdlineargs) + + def inline_genitems(self, *args): + """See :meth:`Pytester.inline_genitems`.""" + return self._pytester.inline_genitems(*args) + + def inline_run(self, *args, plugins=(), no_reraise_ctrlc: bool = False): + """See :meth:`Pytester.inline_run`.""" + return self._pytester.inline_run( + *args, plugins=plugins, no_reraise_ctrlc=no_reraise_ctrlc + ) + + def runpytest_inprocess(self, *args, **kwargs) -> RunResult: + """See :meth:`Pytester.runpytest_inprocess`.""" + return self._pytester.runpytest_inprocess(*args, **kwargs) + + def runpytest(self, *args, **kwargs) -> RunResult: + """See :meth:`Pytester.runpytest`.""" + return self._pytester.runpytest(*args, **kwargs) + + def parseconfig(self, *args) -> Config: + """See :meth:`Pytester.parseconfig`.""" + return self._pytester.parseconfig(*args) + + def parseconfigure(self, *args) -> Config: + """See :meth:`Pytester.parseconfigure`.""" + return self._pytester.parseconfigure(*args) + + def getitem(self, source, funcname="test_func"): + """See :meth:`Pytester.getitem`.""" + return self._pytester.getitem(source, funcname) + + def getitems(self, source): + """See :meth:`Pytester.getitems`.""" + return self._pytester.getitems(source) + + def getmodulecol(self, source, configargs=(), withinit=False): + """See :meth:`Pytester.getmodulecol`.""" + return self._pytester.getmodulecol( + source, configargs=configargs, withinit=withinit + ) + + def collect_by_name( + self, modcol: Collector, name: str + ) -> Optional[Union[Item, Collector]]: + """See :meth:`Pytester.collect_by_name`.""" + return self._pytester.collect_by_name(modcol, name) + + def popen( + self, + cmdargs, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + stdin=CLOSE_STDIN, + **kw, + ): + """See :meth:`Pytester.popen`.""" + return self._pytester.popen(cmdargs, stdout, stderr, stdin, **kw) + + def run(self, *cmdargs, timeout=None, stdin=CLOSE_STDIN) -> RunResult: + """See :meth:`Pytester.run`.""" + return self._pytester.run(*cmdargs, timeout=timeout, stdin=stdin) + + def runpython(self, script) -> RunResult: + """See :meth:`Pytester.runpython`.""" + return self._pytester.runpython(script) + + def runpython_c(self, command): + """See :meth:`Pytester.runpython_c`.""" + return self._pytester.runpython_c(command) + + def runpytest_subprocess(self, *args, timeout=None) -> RunResult: + """See :meth:`Pytester.runpytest_subprocess`.""" + return self._pytester.runpytest_subprocess(*args, timeout=timeout) + + def spawn_pytest( + self, string: str, expect_timeout: float = 10.0 + ) -> "pexpect.spawn": + """See :meth:`Pytester.spawn_pytest`.""" + return self._pytester.spawn_pytest(string, expect_timeout=expect_timeout) + + def spawn(self, cmd: str, expect_timeout: float = 10.0) -> "pexpect.spawn": + """See :meth:`Pytester.spawn`.""" + return self._pytester.spawn(cmd, expect_timeout=expect_timeout) + + def __repr__(self) -> str: + return f"" + + def __str__(self) -> str: + return str(self.tmpdir) + + +class LegacyTestdirPlugin: + @staticmethod + @fixture + def testdir(pytester: Pytester) -> Testdir: + """ + Identical to :fixture:`pytester`, and provides an instance whose methods return + legacy ``LEGACY_PATH`` objects instead when applicable. + + New code should avoid using :fixture:`testdir` in favor of :fixture:`pytester`. + """ + return Testdir(pytester, _ispytest=True) + + +@final +@attr.s(init=False, auto_attribs=True) +class TempdirFactory: + """Backward compatibility wrapper that implements :class:`py.path.local` + for :class:`TempPathFactory`. + + .. note:: + These days, it is preferred to use ``tmp_path_factory``. + + :ref:`About the tmpdir and tmpdir_factory fixtures`. + + """ + + _tmppath_factory: TempPathFactory + + def __init__( + self, tmppath_factory: TempPathFactory, *, _ispytest: bool = False + ) -> None: + check_ispytest(_ispytest) + self._tmppath_factory = tmppath_factory + + def mktemp(self, basename: str, numbered: bool = True) -> LEGACY_PATH: + """Same as :meth:`TempPathFactory.mktemp`, but returns a :class:`py.path.local` object.""" + return legacy_path(self._tmppath_factory.mktemp(basename, numbered).resolve()) + + def getbasetemp(self) -> LEGACY_PATH: + """Same as :meth:`TempPathFactory.getbasetemp`, but returns a :class:`py.path.local` object.""" + return legacy_path(self._tmppath_factory.getbasetemp().resolve()) + + +class LegacyTmpdirPlugin: + @staticmethod + @fixture(scope="session") + def tmpdir_factory(request: FixtureRequest) -> TempdirFactory: + """Return a :class:`pytest.TempdirFactory` instance for the test session.""" + # Set dynamically by pytest_configure(). + return request.config._tmpdirhandler # type: ignore + + @staticmethod + @fixture + def tmpdir(tmp_path: Path) -> LEGACY_PATH: + """Return a temporary directory path object which is unique to each test + function invocation, created as a sub directory of the base temporary + directory. + + By default, a new base temporary directory is created each test session, + and old bases are removed after 3 sessions, to aid in debugging. If + ``--basetemp`` is used then it is cleared each session. See :ref:`base + temporary directory`. + + The returned object is a `legacy_path`_ object. + + .. note:: + These days, it is preferred to use ``tmp_path``. + + :ref:`About the tmpdir and tmpdir_factory fixtures`. + + .. _legacy_path: https://py.readthedocs.io/en/latest/path.html + """ + return legacy_path(tmp_path) + + +def Cache_makedir(self: Cache, name: str) -> LEGACY_PATH: + """Return a directory path object with the given name. + + Same as :func:`mkdir`, but returns a legacy py path instance. + """ + return legacy_path(self.mkdir(name)) + + +def FixtureRequest_fspath(self: FixtureRequest) -> LEGACY_PATH: + """(deprecated) The file system path of the test module which collected this test.""" + return legacy_path(self.path) + + +def TerminalReporter_startdir(self: TerminalReporter) -> LEGACY_PATH: + """The directory from which pytest was invoked. + + Prefer to use ``startpath`` which is a :class:`pathlib.Path`. + + :type: LEGACY_PATH + """ + return legacy_path(self.startpath) + + +def Config_invocation_dir(self: Config) -> LEGACY_PATH: + """The directory from which pytest was invoked. + + Prefer to use :attr:`invocation_params.dir `, + which is a :class:`pathlib.Path`. + + :type: LEGACY_PATH + """ + return legacy_path(str(self.invocation_params.dir)) + + +def Config_rootdir(self: Config) -> LEGACY_PATH: + """The path to the :ref:`rootdir `. + + Prefer to use :attr:`rootpath`, which is a :class:`pathlib.Path`. + + :type: LEGACY_PATH + """ + return legacy_path(str(self.rootpath)) + + +def Config_inifile(self: Config) -> Optional[LEGACY_PATH]: + """The path to the :ref:`configfile `. + + Prefer to use :attr:`inipath`, which is a :class:`pathlib.Path`. + + :type: Optional[LEGACY_PATH] + """ + return legacy_path(str(self.inipath)) if self.inipath else None + + +def Session_stardir(self: Session) -> LEGACY_PATH: + """The path from which pytest was invoked. + + Prefer to use ``startpath`` which is a :class:`pathlib.Path`. + + :type: LEGACY_PATH + """ + return legacy_path(self.startpath) + + +def Config__getini_unknown_type( + self, name: str, type: str, value: Union[str, List[str]] +): + if type == "pathlist": + # TODO: This assert is probably not valid in all cases. + assert self.inipath is not None + dp = self.inipath.parent + input_values = shlex.split(value) if isinstance(value, str) else value + return [legacy_path(str(dp / x)) for x in input_values] + else: + raise ValueError(f"unknown configuration type: {type}", value) + + +def Node_fspath(self: Node) -> LEGACY_PATH: + """(deprecated) returns a legacy_path copy of self.path""" + return legacy_path(self.path) + + +def Node_fspath_set(self: Node, value: LEGACY_PATH) -> None: + self.path = Path(value) + + +@hookimpl(tryfirst=True) +def pytest_load_initial_conftests(early_config: Config) -> None: + """Monkeypatch legacy path attributes in several classes, as early as possible.""" + mp = MonkeyPatch() + early_config.add_cleanup(mp.undo) + + # Add Cache.makedir(). + mp.setattr(Cache, "makedir", Cache_makedir, raising=False) + + # Add FixtureRequest.fspath property. + mp.setattr(FixtureRequest, "fspath", property(FixtureRequest_fspath), raising=False) + + # Add TerminalReporter.startdir property. + mp.setattr( + TerminalReporter, "startdir", property(TerminalReporter_startdir), raising=False + ) + + # Add Config.{invocation_dir,rootdir,inifile} properties. + mp.setattr(Config, "invocation_dir", property(Config_invocation_dir), raising=False) + mp.setattr(Config, "rootdir", property(Config_rootdir), raising=False) + mp.setattr(Config, "inifile", property(Config_inifile), raising=False) + + # Add Session.startdir property. + mp.setattr(Session, "startdir", property(Session_stardir), raising=False) + + # Add pathlist configuration type. + mp.setattr(Config, "_getini_unknown_type", Config__getini_unknown_type) + + # Add Node.fspath property. + mp.setattr(Node, "fspath", property(Node_fspath, Node_fspath_set), raising=False) + + +@hookimpl +def pytest_configure(config: Config) -> None: + """Installs the LegacyTmpdirPlugin if the ``tmpdir`` plugin is also installed.""" + if config.pluginmanager.has_plugin("tmpdir"): + mp = MonkeyPatch() + config.add_cleanup(mp.undo) + # Create TmpdirFactory and attach it to the config object. + # + # This is to comply with existing plugins which expect the handler to be + # available at pytest_configure time, but ideally should be moved entirely + # to the tmpdir_factory session fixture. + try: + tmp_path_factory = config._tmp_path_factory # type: ignore[attr-defined] + except AttributeError: + # tmpdir plugin is blocked. + pass + else: + _tmpdirhandler = TempdirFactory(tmp_path_factory, _ispytest=True) + mp.setattr(config, "_tmpdirhandler", _tmpdirhandler, raising=False) + + config.pluginmanager.register(LegacyTmpdirPlugin, "legacypath-tmpdir") + + +@hookimpl +def pytest_plugin_registered(plugin: object, manager: PytestPluginManager) -> None: + # pytester is not loaded by default and is commonly loaded from a conftest, + # so checking for it in `pytest_configure` is not enough. + is_pytester = plugin is manager.get_plugin("pytester") + if is_pytester and not manager.is_registered(LegacyTestdirPlugin): + manager.register(LegacyTestdirPlugin, "legacypath-pytester") diff --git a/utils/python-venv/Lib/site-packages/_pytest/logging.py b/utils/python-venv/Lib/site-packages/_pytest/logging.py new file mode 100644 index 0000000..f909139 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/logging.py @@ -0,0 +1,830 @@ +"""Access and control log capturing.""" +import io +import logging +import os +import re +from contextlib import contextmanager +from contextlib import nullcontext +from io import StringIO +from pathlib import Path +from typing import AbstractSet +from typing import Dict +from typing import Generator +from typing import List +from typing import Mapping +from typing import Optional +from typing import Tuple +from typing import TYPE_CHECKING +from typing import TypeVar +from typing import Union + +from _pytest import nodes +from _pytest._io import TerminalWriter +from _pytest.capture import CaptureManager +from _pytest.compat import final +from _pytest.config import _strtobool +from _pytest.config import Config +from _pytest.config import create_terminal_writer +from _pytest.config import hookimpl +from _pytest.config import UsageError +from _pytest.config.argparsing import Parser +from _pytest.deprecated import check_ispytest +from _pytest.fixtures import fixture +from _pytest.fixtures import FixtureRequest +from _pytest.main import Session +from _pytest.stash import StashKey +from _pytest.terminal import TerminalReporter + +if TYPE_CHECKING: + logging_StreamHandler = logging.StreamHandler[StringIO] + + from typing_extensions import Literal +else: + logging_StreamHandler = logging.StreamHandler + +DEFAULT_LOG_FORMAT = "%(levelname)-8s %(name)s:%(filename)s:%(lineno)d %(message)s" +DEFAULT_LOG_DATE_FORMAT = "%H:%M:%S" +_ANSI_ESCAPE_SEQ = re.compile(r"\x1b\[[\d;]+m") +caplog_handler_key = StashKey["LogCaptureHandler"]() +caplog_records_key = StashKey[Dict[str, List[logging.LogRecord]]]() + + +def _remove_ansi_escape_sequences(text: str) -> str: + return _ANSI_ESCAPE_SEQ.sub("", text) + + +class ColoredLevelFormatter(logging.Formatter): + """A logging formatter which colorizes the %(levelname)..s part of the + log format passed to __init__.""" + + LOGLEVEL_COLOROPTS: Mapping[int, AbstractSet[str]] = { + logging.CRITICAL: {"red"}, + logging.ERROR: {"red", "bold"}, + logging.WARNING: {"yellow"}, + logging.WARN: {"yellow"}, + logging.INFO: {"green"}, + logging.DEBUG: {"purple"}, + logging.NOTSET: set(), + } + LEVELNAME_FMT_REGEX = re.compile(r"%\(levelname\)([+-.]?\d*(?:\.\d+)?s)") + + def __init__(self, terminalwriter: TerminalWriter, *args, **kwargs) -> None: + super().__init__(*args, **kwargs) + self._terminalwriter = terminalwriter + self._original_fmt = self._style._fmt + self._level_to_fmt_mapping: Dict[int, str] = {} + + for level, color_opts in self.LOGLEVEL_COLOROPTS.items(): + self.add_color_level(level, *color_opts) + + def add_color_level(self, level: int, *color_opts: str) -> None: + """Add or update color opts for a log level. + + :param level: + Log level to apply a style to, e.g. ``logging.INFO``. + :param color_opts: + ANSI escape sequence color options. Capitalized colors indicates + background color, i.e. ``'green', 'Yellow', 'bold'`` will give bold + green text on yellow background. + + .. warning:: + This is an experimental API. + """ + + assert self._fmt is not None + levelname_fmt_match = self.LEVELNAME_FMT_REGEX.search(self._fmt) + if not levelname_fmt_match: + return + levelname_fmt = levelname_fmt_match.group() + + formatted_levelname = levelname_fmt % {"levelname": logging.getLevelName(level)} + + # add ANSI escape sequences around the formatted levelname + color_kwargs = {name: True for name in color_opts} + colorized_formatted_levelname = self._terminalwriter.markup( + formatted_levelname, **color_kwargs + ) + self._level_to_fmt_mapping[level] = self.LEVELNAME_FMT_REGEX.sub( + colorized_formatted_levelname, self._fmt + ) + + def format(self, record: logging.LogRecord) -> str: + fmt = self._level_to_fmt_mapping.get(record.levelno, self._original_fmt) + self._style._fmt = fmt + return super().format(record) + + +class PercentStyleMultiline(logging.PercentStyle): + """A logging style with special support for multiline messages. + + If the message of a record consists of multiple lines, this style + formats the message as if each line were logged separately. + """ + + def __init__(self, fmt: str, auto_indent: Union[int, str, bool, None]) -> None: + super().__init__(fmt) + self._auto_indent = self._get_auto_indent(auto_indent) + + @staticmethod + def _get_auto_indent(auto_indent_option: Union[int, str, bool, None]) -> int: + """Determine the current auto indentation setting. + + Specify auto indent behavior (on/off/fixed) by passing in + extra={"auto_indent": [value]} to the call to logging.log() or + using a --log-auto-indent [value] command line or the + log_auto_indent [value] config option. + + Default behavior is auto-indent off. + + Using the string "True" or "on" or the boolean True as the value + turns auto indent on, using the string "False" or "off" or the + boolean False or the int 0 turns it off, and specifying a + positive integer fixes the indentation position to the value + specified. + + Any other values for the option are invalid, and will silently be + converted to the default. + + :param None|bool|int|str auto_indent_option: + User specified option for indentation from command line, config + or extra kwarg. Accepts int, bool or str. str option accepts the + same range of values as boolean config options, as well as + positive integers represented in str form. + + :returns: + Indentation value, which can be + -1 (automatically determine indentation) or + 0 (auto-indent turned off) or + >0 (explicitly set indentation position). + """ + + if auto_indent_option is None: + return 0 + elif isinstance(auto_indent_option, bool): + if auto_indent_option: + return -1 + else: + return 0 + elif isinstance(auto_indent_option, int): + return int(auto_indent_option) + elif isinstance(auto_indent_option, str): + try: + return int(auto_indent_option) + except ValueError: + pass + try: + if _strtobool(auto_indent_option): + return -1 + except ValueError: + return 0 + + return 0 + + def format(self, record: logging.LogRecord) -> str: + if "\n" in record.message: + if hasattr(record, "auto_indent"): + # Passed in from the "extra={}" kwarg on the call to logging.log(). + auto_indent = self._get_auto_indent(record.auto_indent) # type: ignore[attr-defined] + else: + auto_indent = self._auto_indent + + if auto_indent: + lines = record.message.splitlines() + formatted = self._fmt % {**record.__dict__, "message": lines[0]} + + if auto_indent < 0: + indentation = _remove_ansi_escape_sequences(formatted).find( + lines[0] + ) + else: + # Optimizes logging by allowing a fixed indentation. + indentation = auto_indent + lines[0] = formatted + return ("\n" + " " * indentation).join(lines) + return self._fmt % record.__dict__ + + +def get_option_ini(config: Config, *names: str): + for name in names: + ret = config.getoption(name) # 'default' arg won't work as expected + if ret is None: + ret = config.getini(name) + if ret: + return ret + + +def pytest_addoption(parser: Parser) -> None: + """Add options to control log capturing.""" + group = parser.getgroup("logging") + + def add_option_ini(option, dest, default=None, type=None, **kwargs): + parser.addini( + dest, default=default, type=type, help="Default value for " + option + ) + group.addoption(option, dest=dest, **kwargs) + + add_option_ini( + "--log-level", + dest="log_level", + default=None, + metavar="LEVEL", + help=( + "Level of messages to catch/display." + " Not set by default, so it depends on the root/parent log handler's" + ' effective level, where it is "WARNING" by default.' + ), + ) + add_option_ini( + "--log-format", + dest="log_format", + default=DEFAULT_LOG_FORMAT, + help="Log format used by the logging module", + ) + add_option_ini( + "--log-date-format", + dest="log_date_format", + default=DEFAULT_LOG_DATE_FORMAT, + help="Log date format used by the logging module", + ) + parser.addini( + "log_cli", + default=False, + type="bool", + help='Enable log display during test run (also known as "live logging")', + ) + add_option_ini( + "--log-cli-level", dest="log_cli_level", default=None, help="CLI logging level" + ) + add_option_ini( + "--log-cli-format", + dest="log_cli_format", + default=None, + help="Log format used by the logging module", + ) + add_option_ini( + "--log-cli-date-format", + dest="log_cli_date_format", + default=None, + help="Log date format used by the logging module", + ) + add_option_ini( + "--log-file", + dest="log_file", + default=None, + help="Path to a file when logging will be written to", + ) + add_option_ini( + "--log-file-level", + dest="log_file_level", + default=None, + help="Log file logging level", + ) + add_option_ini( + "--log-file-format", + dest="log_file_format", + default=DEFAULT_LOG_FORMAT, + help="Log format used by the logging module", + ) + add_option_ini( + "--log-file-date-format", + dest="log_file_date_format", + default=DEFAULT_LOG_DATE_FORMAT, + help="Log date format used by the logging module", + ) + add_option_ini( + "--log-auto-indent", + dest="log_auto_indent", + default=None, + help="Auto-indent multiline messages passed to the logging module. Accepts true|on, false|off or an integer.", + ) + + +_HandlerType = TypeVar("_HandlerType", bound=logging.Handler) + + +# Not using @contextmanager for performance reasons. +class catching_logs: + """Context manager that prepares the whole logging machinery properly.""" + + __slots__ = ("handler", "level", "orig_level") + + def __init__(self, handler: _HandlerType, level: Optional[int] = None) -> None: + self.handler = handler + self.level = level + + def __enter__(self): + root_logger = logging.getLogger() + if self.level is not None: + self.handler.setLevel(self.level) + root_logger.addHandler(self.handler) + if self.level is not None: + self.orig_level = root_logger.level + root_logger.setLevel(min(self.orig_level, self.level)) + return self.handler + + def __exit__(self, type, value, traceback): + root_logger = logging.getLogger() + if self.level is not None: + root_logger.setLevel(self.orig_level) + root_logger.removeHandler(self.handler) + + +class LogCaptureHandler(logging_StreamHandler): + """A logging handler that stores log records and the log text.""" + + def __init__(self) -> None: + """Create a new log handler.""" + super().__init__(StringIO()) + self.records: List[logging.LogRecord] = [] + + def emit(self, record: logging.LogRecord) -> None: + """Keep the log records in a list in addition to the log text.""" + self.records.append(record) + super().emit(record) + + def reset(self) -> None: + self.records = [] + self.stream = StringIO() + + def clear(self) -> None: + self.records.clear() + self.stream = StringIO() + + def handleError(self, record: logging.LogRecord) -> None: + if logging.raiseExceptions: + # Fail the test if the log message is bad (emit failed). + # The default behavior of logging is to print "Logging error" + # to stderr with the call stack and some extra details. + # pytest wants to make such mistakes visible during testing. + raise + + +@final +class LogCaptureFixture: + """Provides access and control of log capturing.""" + + def __init__(self, item: nodes.Node, *, _ispytest: bool = False) -> None: + check_ispytest(_ispytest) + self._item = item + self._initial_handler_level: Optional[int] = None + # Dict of log name -> log level. + self._initial_logger_levels: Dict[Optional[str], int] = {} + + def _finalize(self) -> None: + """Finalize the fixture. + + This restores the log levels changed by :meth:`set_level`. + """ + # Restore log levels. + if self._initial_handler_level is not None: + self.handler.setLevel(self._initial_handler_level) + for logger_name, level in self._initial_logger_levels.items(): + logger = logging.getLogger(logger_name) + logger.setLevel(level) + + @property + def handler(self) -> LogCaptureHandler: + """Get the logging handler used by the fixture.""" + return self._item.stash[caplog_handler_key] + + def get_records( + self, when: "Literal['setup', 'call', 'teardown']" + ) -> List[logging.LogRecord]: + """Get the logging records for one of the possible test phases. + + :param when: + Which test phase to obtain the records from. + Valid values are: "setup", "call" and "teardown". + + :returns: The list of captured records at the given stage. + + .. versionadded:: 3.4 + """ + return self._item.stash[caplog_records_key].get(when, []) + + @property + def text(self) -> str: + """The formatted log text.""" + return _remove_ansi_escape_sequences(self.handler.stream.getvalue()) + + @property + def records(self) -> List[logging.LogRecord]: + """The list of log records.""" + return self.handler.records + + @property + def record_tuples(self) -> List[Tuple[str, int, str]]: + """A list of a stripped down version of log records intended + for use in assertion comparison. + + The format of the tuple is: + + (logger_name, log_level, message) + """ + return [(r.name, r.levelno, r.getMessage()) for r in self.records] + + @property + def messages(self) -> List[str]: + """A list of format-interpolated log messages. + + Unlike 'records', which contains the format string and parameters for + interpolation, log messages in this list are all interpolated. + + Unlike 'text', which contains the output from the handler, log + messages in this list are unadorned with levels, timestamps, etc, + making exact comparisons more reliable. + + Note that traceback or stack info (from :func:`logging.exception` or + the `exc_info` or `stack_info` arguments to the logging functions) is + not included, as this is added by the formatter in the handler. + + .. versionadded:: 3.7 + """ + return [r.getMessage() for r in self.records] + + def clear(self) -> None: + """Reset the list of log records and the captured log text.""" + self.handler.clear() + + def set_level(self, level: Union[int, str], logger: Optional[str] = None) -> None: + """Set the level of a logger for the duration of a test. + + .. versionchanged:: 3.4 + The levels of the loggers changed by this function will be + restored to their initial values at the end of the test. + + :param level: The level. + :param logger: The logger to update. If not given, the root logger. + """ + logger_obj = logging.getLogger(logger) + # Save the original log-level to restore it during teardown. + self._initial_logger_levels.setdefault(logger, logger_obj.level) + logger_obj.setLevel(level) + if self._initial_handler_level is None: + self._initial_handler_level = self.handler.level + self.handler.setLevel(level) + + @contextmanager + def at_level( + self, level: Union[int, str], logger: Optional[str] = None + ) -> Generator[None, None, None]: + """Context manager that sets the level for capturing of logs. After + the end of the 'with' statement the level is restored to its original + value. + + :param level: The level. + :param logger: The logger to update. If not given, the root logger. + """ + logger_obj = logging.getLogger(logger) + orig_level = logger_obj.level + logger_obj.setLevel(level) + handler_orig_level = self.handler.level + self.handler.setLevel(level) + try: + yield + finally: + logger_obj.setLevel(orig_level) + self.handler.setLevel(handler_orig_level) + + +@fixture +def caplog(request: FixtureRequest) -> Generator[LogCaptureFixture, None, None]: + """Access and control log capturing. + + Captured logs are available through the following properties/methods:: + + * caplog.messages -> list of format-interpolated log messages + * caplog.text -> string containing formatted log output + * caplog.records -> list of logging.LogRecord instances + * caplog.record_tuples -> list of (logger_name, level, message) tuples + * caplog.clear() -> clear captured records and formatted log output string + """ + result = LogCaptureFixture(request.node, _ispytest=True) + yield result + result._finalize() + + +def get_log_level_for_setting(config: Config, *setting_names: str) -> Optional[int]: + for setting_name in setting_names: + log_level = config.getoption(setting_name) + if log_level is None: + log_level = config.getini(setting_name) + if log_level: + break + else: + return None + + if isinstance(log_level, str): + log_level = log_level.upper() + try: + return int(getattr(logging, log_level, log_level)) + except ValueError as e: + # Python logging does not recognise this as a logging level + raise UsageError( + "'{}' is not recognized as a logging level name for " + "'{}'. Please consider passing the " + "logging level num instead.".format(log_level, setting_name) + ) from e + + +# run after terminalreporter/capturemanager are configured +@hookimpl(trylast=True) +def pytest_configure(config: Config) -> None: + config.pluginmanager.register(LoggingPlugin(config), "logging-plugin") + + +class LoggingPlugin: + """Attaches to the logging module and captures log messages for each test.""" + + def __init__(self, config: Config) -> None: + """Create a new plugin to capture log messages. + + The formatter can be safely shared across all handlers so + create a single one for the entire test session here. + """ + self._config = config + + # Report logging. + self.formatter = self._create_formatter( + get_option_ini(config, "log_format"), + get_option_ini(config, "log_date_format"), + get_option_ini(config, "log_auto_indent"), + ) + self.log_level = get_log_level_for_setting(config, "log_level") + self.caplog_handler = LogCaptureHandler() + self.caplog_handler.setFormatter(self.formatter) + self.report_handler = LogCaptureHandler() + self.report_handler.setFormatter(self.formatter) + + # File logging. + self.log_file_level = get_log_level_for_setting(config, "log_file_level") + log_file = get_option_ini(config, "log_file") or os.devnull + if log_file != os.devnull: + directory = os.path.dirname(os.path.abspath(log_file)) + if not os.path.isdir(directory): + os.makedirs(directory) + + self.log_file_handler = _FileHandler(log_file, mode="w", encoding="UTF-8") + log_file_format = get_option_ini(config, "log_file_format", "log_format") + log_file_date_format = get_option_ini( + config, "log_file_date_format", "log_date_format" + ) + + log_file_formatter = logging.Formatter( + log_file_format, datefmt=log_file_date_format + ) + self.log_file_handler.setFormatter(log_file_formatter) + + # CLI/live logging. + self.log_cli_level = get_log_level_for_setting( + config, "log_cli_level", "log_level" + ) + if self._log_cli_enabled(): + terminal_reporter = config.pluginmanager.get_plugin("terminalreporter") + capture_manager = config.pluginmanager.get_plugin("capturemanager") + # if capturemanager plugin is disabled, live logging still works. + self.log_cli_handler: Union[ + _LiveLoggingStreamHandler, _LiveLoggingNullHandler + ] = _LiveLoggingStreamHandler(terminal_reporter, capture_manager) + else: + self.log_cli_handler = _LiveLoggingNullHandler() + log_cli_formatter = self._create_formatter( + get_option_ini(config, "log_cli_format", "log_format"), + get_option_ini(config, "log_cli_date_format", "log_date_format"), + get_option_ini(config, "log_auto_indent"), + ) + self.log_cli_handler.setFormatter(log_cli_formatter) + + def _create_formatter(self, log_format, log_date_format, auto_indent): + # Color option doesn't exist if terminal plugin is disabled. + color = getattr(self._config.option, "color", "no") + if color != "no" and ColoredLevelFormatter.LEVELNAME_FMT_REGEX.search( + log_format + ): + formatter: logging.Formatter = ColoredLevelFormatter( + create_terminal_writer(self._config), log_format, log_date_format + ) + else: + formatter = logging.Formatter(log_format, log_date_format) + + formatter._style = PercentStyleMultiline( + formatter._style._fmt, auto_indent=auto_indent + ) + + return formatter + + def set_log_path(self, fname: str) -> None: + """Set the filename parameter for Logging.FileHandler(). + + Creates parent directory if it does not exist. + + .. warning:: + This is an experimental API. + """ + fpath = Path(fname) + + if not fpath.is_absolute(): + fpath = self._config.rootpath / fpath + + if not fpath.parent.exists(): + fpath.parent.mkdir(exist_ok=True, parents=True) + + # https://github.com/python/mypy/issues/11193 + stream: io.TextIOWrapper = fpath.open(mode="w", encoding="UTF-8") # type: ignore[assignment] + old_stream = self.log_file_handler.setStream(stream) + if old_stream: + old_stream.close() + + def _log_cli_enabled(self): + """Return whether live logging is enabled.""" + enabled = self._config.getoption( + "--log-cli-level" + ) is not None or self._config.getini("log_cli") + if not enabled: + return False + + terminal_reporter = self._config.pluginmanager.get_plugin("terminalreporter") + if terminal_reporter is None: + # terminal reporter is disabled e.g. by pytest-xdist. + return False + + return True + + @hookimpl(hookwrapper=True, tryfirst=True) + def pytest_sessionstart(self) -> Generator[None, None, None]: + self.log_cli_handler.set_when("sessionstart") + + with catching_logs(self.log_cli_handler, level=self.log_cli_level): + with catching_logs(self.log_file_handler, level=self.log_file_level): + yield + + @hookimpl(hookwrapper=True, tryfirst=True) + def pytest_collection(self) -> Generator[None, None, None]: + self.log_cli_handler.set_when("collection") + + with catching_logs(self.log_cli_handler, level=self.log_cli_level): + with catching_logs(self.log_file_handler, level=self.log_file_level): + yield + + @hookimpl(hookwrapper=True) + def pytest_runtestloop(self, session: Session) -> Generator[None, None, None]: + if session.config.option.collectonly: + yield + return + + if self._log_cli_enabled() and self._config.getoption("verbose") < 1: + # The verbose flag is needed to avoid messy test progress output. + self._config.option.verbose = 1 + + with catching_logs(self.log_cli_handler, level=self.log_cli_level): + with catching_logs(self.log_file_handler, level=self.log_file_level): + yield # Run all the tests. + + @hookimpl + def pytest_runtest_logstart(self) -> None: + self.log_cli_handler.reset() + self.log_cli_handler.set_when("start") + + @hookimpl + def pytest_runtest_logreport(self) -> None: + self.log_cli_handler.set_when("logreport") + + def _runtest_for(self, item: nodes.Item, when: str) -> Generator[None, None, None]: + """Implement the internals of the pytest_runtest_xxx() hooks.""" + with catching_logs( + self.caplog_handler, + level=self.log_level, + ) as caplog_handler, catching_logs( + self.report_handler, + level=self.log_level, + ) as report_handler: + caplog_handler.reset() + report_handler.reset() + item.stash[caplog_records_key][when] = caplog_handler.records + item.stash[caplog_handler_key] = caplog_handler + + yield + + log = report_handler.stream.getvalue().strip() + item.add_report_section(when, "log", log) + + @hookimpl(hookwrapper=True) + def pytest_runtest_setup(self, item: nodes.Item) -> Generator[None, None, None]: + self.log_cli_handler.set_when("setup") + + empty: Dict[str, List[logging.LogRecord]] = {} + item.stash[caplog_records_key] = empty + yield from self._runtest_for(item, "setup") + + @hookimpl(hookwrapper=True) + def pytest_runtest_call(self, item: nodes.Item) -> Generator[None, None, None]: + self.log_cli_handler.set_when("call") + + yield from self._runtest_for(item, "call") + + @hookimpl(hookwrapper=True) + def pytest_runtest_teardown(self, item: nodes.Item) -> Generator[None, None, None]: + self.log_cli_handler.set_when("teardown") + + yield from self._runtest_for(item, "teardown") + del item.stash[caplog_records_key] + del item.stash[caplog_handler_key] + + @hookimpl + def pytest_runtest_logfinish(self) -> None: + self.log_cli_handler.set_when("finish") + + @hookimpl(hookwrapper=True, tryfirst=True) + def pytest_sessionfinish(self) -> Generator[None, None, None]: + self.log_cli_handler.set_when("sessionfinish") + + with catching_logs(self.log_cli_handler, level=self.log_cli_level): + with catching_logs(self.log_file_handler, level=self.log_file_level): + yield + + @hookimpl + def pytest_unconfigure(self) -> None: + # Close the FileHandler explicitly. + # (logging.shutdown might have lost the weakref?!) + self.log_file_handler.close() + + +class _FileHandler(logging.FileHandler): + """A logging FileHandler with pytest tweaks.""" + + def handleError(self, record: logging.LogRecord) -> None: + # Handled by LogCaptureHandler. + pass + + +class _LiveLoggingStreamHandler(logging_StreamHandler): + """A logging StreamHandler used by the live logging feature: it will + write a newline before the first log message in each test. + + During live logging we must also explicitly disable stdout/stderr + capturing otherwise it will get captured and won't appear in the + terminal. + """ + + # Officially stream needs to be a IO[str], but TerminalReporter + # isn't. So force it. + stream: TerminalReporter = None # type: ignore + + def __init__( + self, + terminal_reporter: TerminalReporter, + capture_manager: Optional[CaptureManager], + ) -> None: + super().__init__(stream=terminal_reporter) # type: ignore[arg-type] + self.capture_manager = capture_manager + self.reset() + self.set_when(None) + self._test_outcome_written = False + + def reset(self) -> None: + """Reset the handler; should be called before the start of each test.""" + self._first_record_emitted = False + + def set_when(self, when: Optional[str]) -> None: + """Prepare for the given test phase (setup/call/teardown).""" + self._when = when + self._section_name_shown = False + if when == "start": + self._test_outcome_written = False + + def emit(self, record: logging.LogRecord) -> None: + ctx_manager = ( + self.capture_manager.global_and_fixture_disabled() + if self.capture_manager + else nullcontext() + ) + with ctx_manager: + if not self._first_record_emitted: + self.stream.write("\n") + self._first_record_emitted = True + elif self._when in ("teardown", "finish"): + if not self._test_outcome_written: + self._test_outcome_written = True + self.stream.write("\n") + if not self._section_name_shown and self._when: + self.stream.section("live log " + self._when, sep="-", bold=True) + self._section_name_shown = True + super().emit(record) + + def handleError(self, record: logging.LogRecord) -> None: + # Handled by LogCaptureHandler. + pass + + +class _LiveLoggingNullHandler(logging.NullHandler): + """A logging handler used when live logging is disabled.""" + + def reset(self) -> None: + pass + + def set_when(self, when: str) -> None: + pass + + def handleError(self, record: logging.LogRecord) -> None: + # Handled by LogCaptureHandler. + pass diff --git a/utils/python-venv/Lib/site-packages/_pytest/main.py b/utils/python-venv/Lib/site-packages/_pytest/main.py new file mode 100644 index 0000000..61fb7ea --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/main.py @@ -0,0 +1,902 @@ +"""Core implementation of the testing process: init, session, runtest loop.""" +import argparse +import fnmatch +import functools +import importlib +import os +import sys +from pathlib import Path +from typing import Callable +from typing import Dict +from typing import FrozenSet +from typing import Iterator +from typing import List +from typing import Optional +from typing import Sequence +from typing import Set +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import Union + +import attr + +import _pytest._code +from _pytest import nodes +from _pytest.compat import final +from _pytest.compat import overload +from _pytest.config import Config +from _pytest.config import directory_arg +from _pytest.config import ExitCode +from _pytest.config import hookimpl +from _pytest.config import PytestPluginManager +from _pytest.config import UsageError +from _pytest.config.argparsing import Parser +from _pytest.fixtures import FixtureManager +from _pytest.outcomes import exit +from _pytest.pathlib import absolutepath +from _pytest.pathlib import bestrelpath +from _pytest.pathlib import fnmatch_ex +from _pytest.pathlib import visit +from _pytest.reports import CollectReport +from _pytest.reports import TestReport +from _pytest.runner import collect_one_node +from _pytest.runner import SetupState + + +if TYPE_CHECKING: + from typing_extensions import Literal + + +def pytest_addoption(parser: Parser) -> None: + parser.addini( + "norecursedirs", + "Directory patterns to avoid for recursion", + type="args", + default=[ + "*.egg", + ".*", + "_darcs", + "build", + "CVS", + "dist", + "node_modules", + "venv", + "{arch}", + ], + ) + parser.addini( + "testpaths", + "Directories to search for tests when no files or directories are given on the " + "command line", + type="args", + default=[], + ) + group = parser.getgroup("general", "Running and selection options") + group._addoption( + "-x", + "--exitfirst", + action="store_const", + dest="maxfail", + const=1, + help="Exit instantly on first error or failed test", + ) + group = parser.getgroup("pytest-warnings") + group.addoption( + "-W", + "--pythonwarnings", + action="append", + help="Set which warnings to report, see -W option of Python itself", + ) + parser.addini( + "filterwarnings", + type="linelist", + help="Each line specifies a pattern for " + "warnings.filterwarnings. " + "Processed after -W/--pythonwarnings.", + ) + group._addoption( + "--maxfail", + metavar="num", + action="store", + type=int, + dest="maxfail", + default=0, + help="Exit after first num failures or errors", + ) + group._addoption( + "--strict-config", + action="store_true", + help="Any warnings encountered while parsing the `pytest` section of the " + "configuration file raise errors", + ) + group._addoption( + "--strict-markers", + action="store_true", + help="Markers not registered in the `markers` section of the configuration " + "file raise errors", + ) + group._addoption( + "--strict", + action="store_true", + help="(Deprecated) alias to --strict-markers", + ) + group._addoption( + "-c", + metavar="file", + type=str, + dest="inifilename", + help="Load configuration from `file` instead of trying to locate one of the " + "implicit configuration files", + ) + group._addoption( + "--continue-on-collection-errors", + action="store_true", + default=False, + dest="continue_on_collection_errors", + help="Force test execution even if collection errors occur", + ) + group._addoption( + "--rootdir", + action="store", + dest="rootdir", + help="Define root directory for tests. Can be relative path: 'root_dir', './root_dir', " + "'root_dir/another_dir/'; absolute path: '/home/user/root_dir'; path with variables: " + "'$HOME/root_dir'.", + ) + + group = parser.getgroup("collect", "collection") + group.addoption( + "--collectonly", + "--collect-only", + "--co", + action="store_true", + help="Only collect tests, don't execute them", + ) + group.addoption( + "--pyargs", + action="store_true", + help="Try to interpret all arguments as Python packages", + ) + group.addoption( + "--ignore", + action="append", + metavar="path", + help="Ignore path during collection (multi-allowed)", + ) + group.addoption( + "--ignore-glob", + action="append", + metavar="path", + help="Ignore path pattern during collection (multi-allowed)", + ) + group.addoption( + "--deselect", + action="append", + metavar="nodeid_prefix", + help="Deselect item (via node id prefix) during collection (multi-allowed)", + ) + group.addoption( + "--confcutdir", + dest="confcutdir", + default=None, + metavar="dir", + type=functools.partial(directory_arg, optname="--confcutdir"), + help="Only load conftest.py's relative to specified dir", + ) + group.addoption( + "--noconftest", + action="store_true", + dest="noconftest", + default=False, + help="Don't load any conftest.py files", + ) + group.addoption( + "--keepduplicates", + "--keep-duplicates", + action="store_true", + dest="keepduplicates", + default=False, + help="Keep duplicate tests", + ) + group.addoption( + "--collect-in-virtualenv", + action="store_true", + dest="collect_in_virtualenv", + default=False, + help="Don't ignore tests in a local virtualenv directory", + ) + group.addoption( + "--import-mode", + default="prepend", + choices=["prepend", "append", "importlib"], + dest="importmode", + help="Prepend/append to sys.path when importing test modules and conftest " + "files. Default: prepend.", + ) + + group = parser.getgroup("debugconfig", "test session debugging and configuration") + group.addoption( + "--basetemp", + dest="basetemp", + default=None, + type=validate_basetemp, + metavar="dir", + help=( + "Base temporary directory for this test run. " + "(Warning: this directory is removed if it exists.)" + ), + ) + + +def validate_basetemp(path: str) -> str: + # GH 7119 + msg = "basetemp must not be empty, the current working directory or any parent directory of it" + + # empty path + if not path: + raise argparse.ArgumentTypeError(msg) + + def is_ancestor(base: Path, query: Path) -> bool: + """Return whether query is an ancestor of base.""" + if base == query: + return True + return query in base.parents + + # check if path is an ancestor of cwd + if is_ancestor(Path.cwd(), Path(path).absolute()): + raise argparse.ArgumentTypeError(msg) + + # check symlinks for ancestors + if is_ancestor(Path.cwd().resolve(), Path(path).resolve()): + raise argparse.ArgumentTypeError(msg) + + return path + + +def wrap_session( + config: Config, doit: Callable[[Config, "Session"], Optional[Union[int, ExitCode]]] +) -> Union[int, ExitCode]: + """Skeleton command line program.""" + session = Session.from_config(config) + session.exitstatus = ExitCode.OK + initstate = 0 + try: + try: + config._do_configure() + initstate = 1 + config.hook.pytest_sessionstart(session=session) + initstate = 2 + session.exitstatus = doit(config, session) or 0 + except UsageError: + session.exitstatus = ExitCode.USAGE_ERROR + raise + except Failed: + session.exitstatus = ExitCode.TESTS_FAILED + except (KeyboardInterrupt, exit.Exception): + excinfo = _pytest._code.ExceptionInfo.from_current() + exitstatus: Union[int, ExitCode] = ExitCode.INTERRUPTED + if isinstance(excinfo.value, exit.Exception): + if excinfo.value.returncode is not None: + exitstatus = excinfo.value.returncode + if initstate < 2: + sys.stderr.write(f"{excinfo.typename}: {excinfo.value.msg}\n") + config.hook.pytest_keyboard_interrupt(excinfo=excinfo) + session.exitstatus = exitstatus + except BaseException: + session.exitstatus = ExitCode.INTERNAL_ERROR + excinfo = _pytest._code.ExceptionInfo.from_current() + try: + config.notify_exception(excinfo, config.option) + except exit.Exception as exc: + if exc.returncode is not None: + session.exitstatus = exc.returncode + sys.stderr.write(f"{type(exc).__name__}: {exc}\n") + else: + if isinstance(excinfo.value, SystemExit): + sys.stderr.write("mainloop: caught unexpected SystemExit!\n") + + finally: + # Explicitly break reference cycle. + excinfo = None # type: ignore + os.chdir(session.startpath) + if initstate >= 2: + try: + config.hook.pytest_sessionfinish( + session=session, exitstatus=session.exitstatus + ) + except exit.Exception as exc: + if exc.returncode is not None: + session.exitstatus = exc.returncode + sys.stderr.write(f"{type(exc).__name__}: {exc}\n") + config._ensure_unconfigure() + return session.exitstatus + + +def pytest_cmdline_main(config: Config) -> Union[int, ExitCode]: + return wrap_session(config, _main) + + +def _main(config: Config, session: "Session") -> Optional[Union[int, ExitCode]]: + """Default command line protocol for initialization, session, + running tests and reporting.""" + config.hook.pytest_collection(session=session) + config.hook.pytest_runtestloop(session=session) + + if session.testsfailed: + return ExitCode.TESTS_FAILED + elif session.testscollected == 0: + return ExitCode.NO_TESTS_COLLECTED + return None + + +def pytest_collection(session: "Session") -> None: + session.perform_collect() + + +def pytest_runtestloop(session: "Session") -> bool: + if session.testsfailed and not session.config.option.continue_on_collection_errors: + raise session.Interrupted( + "%d error%s during collection" + % (session.testsfailed, "s" if session.testsfailed != 1 else "") + ) + + if session.config.option.collectonly: + return True + + for i, item in enumerate(session.items): + nextitem = session.items[i + 1] if i + 1 < len(session.items) else None + item.config.hook.pytest_runtest_protocol(item=item, nextitem=nextitem) + if session.shouldfail: + raise session.Failed(session.shouldfail) + if session.shouldstop: + raise session.Interrupted(session.shouldstop) + return True + + +def _in_venv(path: Path) -> bool: + """Attempt to detect if ``path`` is the root of a Virtual Environment by + checking for the existence of the appropriate activate script.""" + bindir = path.joinpath("Scripts" if sys.platform.startswith("win") else "bin") + try: + if not bindir.is_dir(): + return False + except OSError: + return False + activates = ( + "activate", + "activate.csh", + "activate.fish", + "Activate", + "Activate.bat", + "Activate.ps1", + ) + return any(fname.name in activates for fname in bindir.iterdir()) + + +def pytest_ignore_collect(collection_path: Path, config: Config) -> Optional[bool]: + ignore_paths = config._getconftest_pathlist( + "collect_ignore", path=collection_path.parent, rootpath=config.rootpath + ) + ignore_paths = ignore_paths or [] + excludeopt = config.getoption("ignore") + if excludeopt: + ignore_paths.extend(absolutepath(x) for x in excludeopt) + + if collection_path in ignore_paths: + return True + + ignore_globs = config._getconftest_pathlist( + "collect_ignore_glob", path=collection_path.parent, rootpath=config.rootpath + ) + ignore_globs = ignore_globs or [] + excludeglobopt = config.getoption("ignore_glob") + if excludeglobopt: + ignore_globs.extend(absolutepath(x) for x in excludeglobopt) + + if any(fnmatch.fnmatch(str(collection_path), str(glob)) for glob in ignore_globs): + return True + + allow_in_venv = config.getoption("collect_in_virtualenv") + if not allow_in_venv and _in_venv(collection_path): + return True + return None + + +def pytest_collection_modifyitems(items: List[nodes.Item], config: Config) -> None: + deselect_prefixes = tuple(config.getoption("deselect") or []) + if not deselect_prefixes: + return + + remaining = [] + deselected = [] + for colitem in items: + if colitem.nodeid.startswith(deselect_prefixes): + deselected.append(colitem) + else: + remaining.append(colitem) + + if deselected: + config.hook.pytest_deselected(items=deselected) + items[:] = remaining + + +class FSHookProxy: + def __init__(self, pm: PytestPluginManager, remove_mods) -> None: + self.pm = pm + self.remove_mods = remove_mods + + def __getattr__(self, name: str): + x = self.pm.subset_hook_caller(name, remove_plugins=self.remove_mods) + self.__dict__[name] = x + return x + + +class Interrupted(KeyboardInterrupt): + """Signals that the test run was interrupted.""" + + __module__ = "builtins" # For py3. + + +class Failed(Exception): + """Signals a stop as failed test run.""" + + +@attr.s(slots=True, auto_attribs=True) +class _bestrelpath_cache(Dict[Path, str]): + path: Path + + def __missing__(self, path: Path) -> str: + r = bestrelpath(self.path, path) + self[path] = r + return r + + +@final +class Session(nodes.FSCollector): + Interrupted = Interrupted + Failed = Failed + # Set on the session by runner.pytest_sessionstart. + _setupstate: SetupState + # Set on the session by fixtures.pytest_sessionstart. + _fixturemanager: FixtureManager + exitstatus: Union[int, ExitCode] + + def __init__(self, config: Config) -> None: + super().__init__( + path=config.rootpath, + fspath=None, + parent=None, + config=config, + session=self, + nodeid="", + ) + self.testsfailed = 0 + self.testscollected = 0 + self.shouldstop: Union[bool, str] = False + self.shouldfail: Union[bool, str] = False + self.trace = config.trace.root.get("collection") + self._initialpaths: FrozenSet[Path] = frozenset() + + self._bestrelpathcache: Dict[Path, str] = _bestrelpath_cache(config.rootpath) + + self.config.pluginmanager.register(self, name="session") + + @classmethod + def from_config(cls, config: Config) -> "Session": + session: Session = cls._create(config=config) + return session + + def __repr__(self) -> str: + return "<%s %s exitstatus=%r testsfailed=%d testscollected=%d>" % ( + self.__class__.__name__, + self.name, + getattr(self, "exitstatus", ""), + self.testsfailed, + self.testscollected, + ) + + @property + def startpath(self) -> Path: + """The path from which pytest was invoked. + + .. versionadded:: 7.0.0 + """ + return self.config.invocation_params.dir + + def _node_location_to_relpath(self, node_path: Path) -> str: + # bestrelpath is a quite slow function. + return self._bestrelpathcache[node_path] + + @hookimpl(tryfirst=True) + def pytest_collectstart(self) -> None: + if self.shouldfail: + raise self.Failed(self.shouldfail) + if self.shouldstop: + raise self.Interrupted(self.shouldstop) + + @hookimpl(tryfirst=True) + def pytest_runtest_logreport( + self, report: Union[TestReport, CollectReport] + ) -> None: + if report.failed and not hasattr(report, "wasxfail"): + self.testsfailed += 1 + maxfail = self.config.getvalue("maxfail") + if maxfail and self.testsfailed >= maxfail: + self.shouldfail = "stopping after %d failures" % (self.testsfailed) + + pytest_collectreport = pytest_runtest_logreport + + def isinitpath(self, path: Union[str, "os.PathLike[str]"]) -> bool: + # Optimization: Path(Path(...)) is much slower than isinstance. + path_ = path if isinstance(path, Path) else Path(path) + return path_ in self._initialpaths + + def gethookproxy(self, fspath: "os.PathLike[str]"): + # Optimization: Path(Path(...)) is much slower than isinstance. + path = fspath if isinstance(fspath, Path) else Path(fspath) + pm = self.config.pluginmanager + # Check if we have the common case of running + # hooks with all conftest.py files. + my_conftestmodules = pm._getconftestmodules( + path, + self.config.getoption("importmode"), + rootpath=self.config.rootpath, + ) + remove_mods = pm._conftest_plugins.difference(my_conftestmodules) + if remove_mods: + # One or more conftests are not in use at this fspath. + from .config.compat import PathAwareHookProxy + + proxy = PathAwareHookProxy(FSHookProxy(pm, remove_mods)) + else: + # All plugins are active for this fspath. + proxy = self.config.hook + return proxy + + def _recurse(self, direntry: "os.DirEntry[str]") -> bool: + if direntry.name == "__pycache__": + return False + fspath = Path(direntry.path) + ihook = self.gethookproxy(fspath.parent) + if ihook.pytest_ignore_collect(collection_path=fspath, config=self.config): + return False + norecursepatterns = self.config.getini("norecursedirs") + if any(fnmatch_ex(pat, fspath) for pat in norecursepatterns): + return False + return True + + def _collectfile( + self, fspath: Path, handle_dupes: bool = True + ) -> Sequence[nodes.Collector]: + assert ( + fspath.is_file() + ), "{!r} is not a file (isdir={!r}, exists={!r}, islink={!r})".format( + fspath, fspath.is_dir(), fspath.exists(), fspath.is_symlink() + ) + ihook = self.gethookproxy(fspath) + if not self.isinitpath(fspath): + if ihook.pytest_ignore_collect(collection_path=fspath, config=self.config): + return () + + if handle_dupes: + keepduplicates = self.config.getoption("keepduplicates") + if not keepduplicates: + duplicate_paths = self.config.pluginmanager._duplicatepaths + if fspath in duplicate_paths: + return () + else: + duplicate_paths.add(fspath) + + return ihook.pytest_collect_file(file_path=fspath, parent=self) # type: ignore[no-any-return] + + @overload + def perform_collect( + self, args: Optional[Sequence[str]] = ..., genitems: "Literal[True]" = ... + ) -> Sequence[nodes.Item]: + ... + + @overload + def perform_collect( # noqa: F811 + self, args: Optional[Sequence[str]] = ..., genitems: bool = ... + ) -> Sequence[Union[nodes.Item, nodes.Collector]]: + ... + + def perform_collect( # noqa: F811 + self, args: Optional[Sequence[str]] = None, genitems: bool = True + ) -> Sequence[Union[nodes.Item, nodes.Collector]]: + """Perform the collection phase for this session. + + This is called by the default :hook:`pytest_collection` hook + implementation; see the documentation of this hook for more details. + For testing purposes, it may also be called directly on a fresh + ``Session``. + + This function normally recursively expands any collectors collected + from the session to their items, and only items are returned. For + testing purposes, this may be suppressed by passing ``genitems=False``, + in which case the return value contains these collectors unexpanded, + and ``session.items`` is empty. + """ + if args is None: + args = self.config.args + + self.trace("perform_collect", self, args) + self.trace.root.indent += 1 + + self._notfound: List[Tuple[str, Sequence[nodes.Collector]]] = [] + self._initial_parts: List[Tuple[Path, List[str]]] = [] + self.items: List[nodes.Item] = [] + + hook = self.config.hook + + items: Sequence[Union[nodes.Item, nodes.Collector]] = self.items + try: + initialpaths: List[Path] = [] + for arg in args: + fspath, parts = resolve_collection_argument( + self.config.invocation_params.dir, + arg, + as_pypath=self.config.option.pyargs, + ) + self._initial_parts.append((fspath, parts)) + initialpaths.append(fspath) + self._initialpaths = frozenset(initialpaths) + rep = collect_one_node(self) + self.ihook.pytest_collectreport(report=rep) + self.trace.root.indent -= 1 + if self._notfound: + errors = [] + for arg, collectors in self._notfound: + if collectors: + errors.append( + f"not found: {arg}\n(no name {arg!r} in any of {collectors!r})" + ) + else: + errors.append(f"found no collectors for {arg}") + + raise UsageError(*errors) + if not genitems: + items = rep.result + else: + if rep.passed: + for node in rep.result: + self.items.extend(self.genitems(node)) + + self.config.pluginmanager.check_pending() + hook.pytest_collection_modifyitems( + session=self, config=self.config, items=items + ) + finally: + hook.pytest_collection_finish(session=self) + + self.testscollected = len(items) + return items + + def collect(self) -> Iterator[Union[nodes.Item, nodes.Collector]]: + from _pytest.python import Package + + # Keep track of any collected nodes in here, so we don't duplicate fixtures. + node_cache1: Dict[Path, Sequence[nodes.Collector]] = {} + node_cache2: Dict[Tuple[Type[nodes.Collector], Path], nodes.Collector] = {} + + # Keep track of any collected collectors in matchnodes paths, so they + # are not collected more than once. + matchnodes_cache: Dict[Tuple[Type[nodes.Collector], str], CollectReport] = {} + + # Dirnames of pkgs with dunder-init files. + pkg_roots: Dict[str, Package] = {} + + for argpath, names in self._initial_parts: + self.trace("processing argument", (argpath, names)) + self.trace.root.indent += 1 + + # Start with a Session root, and delve to argpath item (dir or file) + # and stack all Packages found on the way. + # No point in finding packages when collecting doctests. + if not self.config.getoption("doctestmodules", False): + pm = self.config.pluginmanager + for parent in (argpath, *argpath.parents): + if not pm._is_in_confcutdir(argpath): + break + + if parent.is_dir(): + pkginit = parent / "__init__.py" + if pkginit.is_file() and pkginit not in node_cache1: + col = self._collectfile(pkginit, handle_dupes=False) + if col: + if isinstance(col[0], Package): + pkg_roots[str(parent)] = col[0] + node_cache1[col[0].path] = [col[0]] + + # If it's a directory argument, recurse and look for any Subpackages. + # Let the Package collector deal with subnodes, don't collect here. + if argpath.is_dir(): + assert not names, f"invalid arg {(argpath, names)!r}" + + seen_dirs: Set[Path] = set() + for direntry in visit(str(argpath), self._recurse): + if not direntry.is_file(): + continue + + path = Path(direntry.path) + dirpath = path.parent + + if dirpath not in seen_dirs: + # Collect packages first. + seen_dirs.add(dirpath) + pkginit = dirpath / "__init__.py" + if pkginit.exists(): + for x in self._collectfile(pkginit): + yield x + if isinstance(x, Package): + pkg_roots[str(dirpath)] = x + if str(dirpath) in pkg_roots: + # Do not collect packages here. + continue + + for x in self._collectfile(path): + key2 = (type(x), x.path) + if key2 in node_cache2: + yield node_cache2[key2] + else: + node_cache2[key2] = x + yield x + else: + assert argpath.is_file() + + if argpath in node_cache1: + col = node_cache1[argpath] + else: + collect_root = pkg_roots.get(str(argpath.parent), self) + col = collect_root._collectfile(argpath, handle_dupes=False) + if col: + node_cache1[argpath] = col + + matching = [] + work: List[ + Tuple[Sequence[Union[nodes.Item, nodes.Collector]], Sequence[str]] + ] = [(col, names)] + while work: + self.trace("matchnodes", col, names) + self.trace.root.indent += 1 + + matchnodes, matchnames = work.pop() + for node in matchnodes: + if not matchnames: + matching.append(node) + continue + if not isinstance(node, nodes.Collector): + continue + key = (type(node), node.nodeid) + if key in matchnodes_cache: + rep = matchnodes_cache[key] + else: + rep = collect_one_node(node) + matchnodes_cache[key] = rep + if rep.passed: + submatchnodes = [] + for r in rep.result: + # TODO: Remove parametrized workaround once collection structure contains + # parametrization. + if ( + r.name == matchnames[0] + or r.name.split("[")[0] == matchnames[0] + ): + submatchnodes.append(r) + if submatchnodes: + work.append((submatchnodes, matchnames[1:])) + else: + # Report collection failures here to avoid failing to run some test + # specified in the command line because the module could not be + # imported (#134). + node.ihook.pytest_collectreport(report=rep) + + self.trace("matchnodes finished -> ", len(matching), "nodes") + self.trace.root.indent -= 1 + + if not matching: + report_arg = "::".join((str(argpath), *names)) + self._notfound.append((report_arg, col)) + continue + + # If __init__.py was the only file requested, then the matched + # node will be the corresponding Package (by default), and the + # first yielded item will be the __init__ Module itself, so + # just use that. If this special case isn't taken, then all the + # files in the package will be yielded. + if argpath.name == "__init__.py" and isinstance(matching[0], Package): + try: + yield next(iter(matching[0].collect())) + except StopIteration: + # The package collects nothing with only an __init__.py + # file in it, which gets ignored by the default + # "python_files" option. + pass + continue + + yield from matching + + self.trace.root.indent -= 1 + + def genitems( + self, node: Union[nodes.Item, nodes.Collector] + ) -> Iterator[nodes.Item]: + self.trace("genitems", node) + if isinstance(node, nodes.Item): + node.ihook.pytest_itemcollected(item=node) + yield node + else: + assert isinstance(node, nodes.Collector) + rep = collect_one_node(node) + if rep.passed: + for subnode in rep.result: + yield from self.genitems(subnode) + node.ihook.pytest_collectreport(report=rep) + + +def search_pypath(module_name: str) -> str: + """Search sys.path for the given a dotted module name, and return its file system path.""" + try: + spec = importlib.util.find_spec(module_name) + # AttributeError: looks like package module, but actually filename + # ImportError: module does not exist + # ValueError: not a module name + except (AttributeError, ImportError, ValueError): + return module_name + if spec is None or spec.origin is None or spec.origin == "namespace": + return module_name + elif spec.submodule_search_locations: + return os.path.dirname(spec.origin) + else: + return spec.origin + + +def resolve_collection_argument( + invocation_path: Path, arg: str, *, as_pypath: bool = False +) -> Tuple[Path, List[str]]: + """Parse path arguments optionally containing selection parts and return (fspath, names). + + Command-line arguments can point to files and/or directories, and optionally contain + parts for specific tests selection, for example: + + "pkg/tests/test_foo.py::TestClass::test_foo" + + This function ensures the path exists, and returns a tuple: + + (Path("/full/path/to/pkg/tests/test_foo.py"), ["TestClass", "test_foo"]) + + When as_pypath is True, expects that the command-line argument actually contains + module paths instead of file-system paths: + + "pkg.tests.test_foo::TestClass::test_foo" + + In which case we search sys.path for a matching module, and then return the *path* to the + found module. + + If the path doesn't exist, raise UsageError. + If the path is a directory and selection parts are present, raise UsageError. + """ + base, squacket, rest = str(arg).partition("[") + strpath, *parts = base.split("::") + if parts: + parts[-1] = f"{parts[-1]}{squacket}{rest}" + if as_pypath: + strpath = search_pypath(strpath) + fspath = invocation_path / strpath + fspath = absolutepath(fspath) + if not fspath.exists(): + msg = ( + "module or package not found: {arg} (missing __init__.py?)" + if as_pypath + else "file or directory not found: {arg}" + ) + raise UsageError(msg.format(arg=arg)) + if parts and fspath.is_dir(): + msg = ( + "package argument cannot contain :: selection parts: {arg}" + if as_pypath + else "directory argument cannot contain :: selection parts: {arg}" + ) + raise UsageError(msg.format(arg=arg)) + return fspath, parts diff --git a/utils/python-venv/Lib/site-packages/_pytest/mark/__init__.py b/utils/python-venv/Lib/site-packages/_pytest/mark/__init__.py new file mode 100644 index 0000000..6717d11 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/mark/__init__.py @@ -0,0 +1,266 @@ +"""Generic mechanism for marking and selecting python functions.""" +from typing import AbstractSet +from typing import Collection +from typing import List +from typing import Optional +from typing import TYPE_CHECKING +from typing import Union + +import attr + +from .expression import Expression +from .expression import ParseError +from .structures import EMPTY_PARAMETERSET_OPTION +from .structures import get_empty_parameterset_mark +from .structures import Mark +from .structures import MARK_GEN +from .structures import MarkDecorator +from .structures import MarkGenerator +from .structures import ParameterSet +from _pytest.config import Config +from _pytest.config import ExitCode +from _pytest.config import hookimpl +from _pytest.config import UsageError +from _pytest.config.argparsing import Parser +from _pytest.stash import StashKey + +if TYPE_CHECKING: + from _pytest.nodes import Item + + +__all__ = [ + "MARK_GEN", + "Mark", + "MarkDecorator", + "MarkGenerator", + "ParameterSet", + "get_empty_parameterset_mark", +] + + +old_mark_config_key = StashKey[Optional[Config]]() + + +def param( + *values: object, + marks: Union[MarkDecorator, Collection[Union[MarkDecorator, Mark]]] = (), + id: Optional[str] = None, +) -> ParameterSet: + """Specify a parameter in `pytest.mark.parametrize`_ calls or + :ref:`parametrized fixtures `. + + .. code-block:: python + + @pytest.mark.parametrize( + "test_input,expected", + [ + ("3+5", 8), + pytest.param("6*9", 42, marks=pytest.mark.xfail), + ], + ) + def test_eval(test_input, expected): + assert eval(test_input) == expected + + :param values: Variable args of the values of the parameter set, in order. + :param marks: A single mark or a list of marks to be applied to this parameter set. + :param id: The id to attribute to this parameter set. + """ + return ParameterSet.param(*values, marks=marks, id=id) + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("general") + group._addoption( + "-k", + action="store", + dest="keyword", + default="", + metavar="EXPRESSION", + help="Only run tests which match the given substring expression. " + "An expression is a Python evaluatable expression " + "where all names are substring-matched against test names " + "and their parent classes. Example: -k 'test_method or test_" + "other' matches all test functions and classes whose name " + "contains 'test_method' or 'test_other', while -k 'not test_method' " + "matches those that don't contain 'test_method' in their names. " + "-k 'not test_method and not test_other' will eliminate the matches. " + "Additionally keywords are matched to classes and functions " + "containing extra names in their 'extra_keyword_matches' set, " + "as well as functions which have names assigned directly to them. " + "The matching is case-insensitive.", + ) + + group._addoption( + "-m", + action="store", + dest="markexpr", + default="", + metavar="MARKEXPR", + help="Only run tests matching given mark expression. " + "For example: -m 'mark1 and not mark2'.", + ) + + group.addoption( + "--markers", + action="store_true", + help="show markers (builtin, plugin and per-project ones).", + ) + + parser.addini("markers", "Markers for test functions", "linelist") + parser.addini(EMPTY_PARAMETERSET_OPTION, "Default marker for empty parametersets") + + +@hookimpl(tryfirst=True) +def pytest_cmdline_main(config: Config) -> Optional[Union[int, ExitCode]]: + import _pytest.config + + if config.option.markers: + config._do_configure() + tw = _pytest.config.create_terminal_writer(config) + for line in config.getini("markers"): + parts = line.split(":", 1) + name = parts[0] + rest = parts[1] if len(parts) == 2 else "" + tw.write("@pytest.mark.%s:" % name, bold=True) + tw.line(rest) + tw.line() + config._ensure_unconfigure() + return 0 + + return None + + +@attr.s(slots=True, auto_attribs=True) +class KeywordMatcher: + """A matcher for keywords. + + Given a list of names, matches any substring of one of these names. The + string inclusion check is case-insensitive. + + Will match on the name of colitem, including the names of its parents. + Only matches names of items which are either a :class:`Class` or a + :class:`Function`. + + Additionally, matches on names in the 'extra_keyword_matches' set of + any item, as well as names directly assigned to test functions. + """ + + _names: AbstractSet[str] + + @classmethod + def from_item(cls, item: "Item") -> "KeywordMatcher": + mapped_names = set() + + # Add the names of the current item and any parent items. + import pytest + + for node in item.listchain(): + if not isinstance(node, pytest.Session): + mapped_names.add(node.name) + + # Add the names added as extra keywords to current or parent items. + mapped_names.update(item.listextrakeywords()) + + # Add the names attached to the current function through direct assignment. + function_obj = getattr(item, "function", None) + if function_obj: + mapped_names.update(function_obj.__dict__) + + # Add the markers to the keywords as we no longer handle them correctly. + mapped_names.update(mark.name for mark in item.iter_markers()) + + return cls(mapped_names) + + def __call__(self, subname: str) -> bool: + subname = subname.lower() + names = (name.lower() for name in self._names) + + for name in names: + if subname in name: + return True + return False + + +def deselect_by_keyword(items: "List[Item]", config: Config) -> None: + keywordexpr = config.option.keyword.lstrip() + if not keywordexpr: + return + + expr = _parse_expression(keywordexpr, "Wrong expression passed to '-k'") + + remaining = [] + deselected = [] + for colitem in items: + if not expr.evaluate(KeywordMatcher.from_item(colitem)): + deselected.append(colitem) + else: + remaining.append(colitem) + + if deselected: + config.hook.pytest_deselected(items=deselected) + items[:] = remaining + + +@attr.s(slots=True, auto_attribs=True) +class MarkMatcher: + """A matcher for markers which are present. + + Tries to match on any marker names, attached to the given colitem. + """ + + own_mark_names: AbstractSet[str] + + @classmethod + def from_item(cls, item: "Item") -> "MarkMatcher": + mark_names = {mark.name for mark in item.iter_markers()} + return cls(mark_names) + + def __call__(self, name: str) -> bool: + return name in self.own_mark_names + + +def deselect_by_mark(items: "List[Item]", config: Config) -> None: + matchexpr = config.option.markexpr + if not matchexpr: + return + + expr = _parse_expression(matchexpr, "Wrong expression passed to '-m'") + remaining: List[Item] = [] + deselected: List[Item] = [] + for item in items: + if expr.evaluate(MarkMatcher.from_item(item)): + remaining.append(item) + else: + deselected.append(item) + if deselected: + config.hook.pytest_deselected(items=deselected) + items[:] = remaining + + +def _parse_expression(expr: str, exc_message: str) -> Expression: + try: + return Expression.compile(expr) + except ParseError as e: + raise UsageError(f"{exc_message}: {expr}: {e}") from None + + +def pytest_collection_modifyitems(items: "List[Item]", config: Config) -> None: + deselect_by_keyword(items, config) + deselect_by_mark(items, config) + + +def pytest_configure(config: Config) -> None: + config.stash[old_mark_config_key] = MARK_GEN._config + MARK_GEN._config = config + + empty_parameterset = config.getini(EMPTY_PARAMETERSET_OPTION) + + if empty_parameterset not in ("skip", "xfail", "fail_at_collect", None, ""): + raise UsageError( + "{!s} must be one of skip, xfail or fail_at_collect" + " but it is {!r}".format(EMPTY_PARAMETERSET_OPTION, empty_parameterset) + ) + + +def pytest_unconfigure(config: Config) -> None: + MARK_GEN._config = config.stash.get(old_mark_config_key, None) diff --git a/utils/python-venv/Lib/site-packages/_pytest/mark/expression.py b/utils/python-venv/Lib/site-packages/_pytest/mark/expression.py new file mode 100644 index 0000000..0a2e7c6 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/mark/expression.py @@ -0,0 +1,222 @@ +r"""Evaluate match expressions, as used by `-k` and `-m`. + +The grammar is: + +expression: expr? EOF +expr: and_expr ('or' and_expr)* +and_expr: not_expr ('and' not_expr)* +not_expr: 'not' not_expr | '(' expr ')' | ident +ident: (\w|:|\+|-|\.|\[|\]|\\|/)+ + +The semantics are: + +- Empty expression evaluates to False. +- ident evaluates to True of False according to a provided matcher function. +- or/and/not evaluate according to the usual boolean semantics. +""" +import ast +import enum +import re +import types +from typing import Callable +from typing import Iterator +from typing import Mapping +from typing import NoReturn +from typing import Optional +from typing import Sequence + +import attr + + +__all__ = [ + "Expression", + "ParseError", +] + + +class TokenType(enum.Enum): + LPAREN = "left parenthesis" + RPAREN = "right parenthesis" + OR = "or" + AND = "and" + NOT = "not" + IDENT = "identifier" + EOF = "end of input" + + +@attr.s(frozen=True, slots=True, auto_attribs=True) +class Token: + type: TokenType + value: str + pos: int + + +class ParseError(Exception): + """The expression contains invalid syntax. + + :param column: The column in the line where the error occurred (1-based). + :param message: A description of the error. + """ + + def __init__(self, column: int, message: str) -> None: + self.column = column + self.message = message + + def __str__(self) -> str: + return f"at column {self.column}: {self.message}" + + +class Scanner: + __slots__ = ("tokens", "current") + + def __init__(self, input: str) -> None: + self.tokens = self.lex(input) + self.current = next(self.tokens) + + def lex(self, input: str) -> Iterator[Token]: + pos = 0 + while pos < len(input): + if input[pos] in (" ", "\t"): + pos += 1 + elif input[pos] == "(": + yield Token(TokenType.LPAREN, "(", pos) + pos += 1 + elif input[pos] == ")": + yield Token(TokenType.RPAREN, ")", pos) + pos += 1 + else: + match = re.match(r"(:?\w|:|\+|-|\.|\[|\]|\\|/)+", input[pos:]) + if match: + value = match.group(0) + if value == "or": + yield Token(TokenType.OR, value, pos) + elif value == "and": + yield Token(TokenType.AND, value, pos) + elif value == "not": + yield Token(TokenType.NOT, value, pos) + else: + yield Token(TokenType.IDENT, value, pos) + pos += len(value) + else: + raise ParseError( + pos + 1, + f'unexpected character "{input[pos]}"', + ) + yield Token(TokenType.EOF, "", pos) + + def accept(self, type: TokenType, *, reject: bool = False) -> Optional[Token]: + if self.current.type is type: + token = self.current + if token.type is not TokenType.EOF: + self.current = next(self.tokens) + return token + if reject: + self.reject((type,)) + return None + + def reject(self, expected: Sequence[TokenType]) -> NoReturn: + raise ParseError( + self.current.pos + 1, + "expected {}; got {}".format( + " OR ".join(type.value for type in expected), + self.current.type.value, + ), + ) + + +# True, False and None are legal match expression identifiers, +# but illegal as Python identifiers. To fix this, this prefix +# is added to identifiers in the conversion to Python AST. +IDENT_PREFIX = "$" + + +def expression(s: Scanner) -> ast.Expression: + if s.accept(TokenType.EOF): + ret: ast.expr = ast.NameConstant(False) + else: + ret = expr(s) + s.accept(TokenType.EOF, reject=True) + return ast.fix_missing_locations(ast.Expression(ret)) + + +def expr(s: Scanner) -> ast.expr: + ret = and_expr(s) + while s.accept(TokenType.OR): + rhs = and_expr(s) + ret = ast.BoolOp(ast.Or(), [ret, rhs]) + return ret + + +def and_expr(s: Scanner) -> ast.expr: + ret = not_expr(s) + while s.accept(TokenType.AND): + rhs = not_expr(s) + ret = ast.BoolOp(ast.And(), [ret, rhs]) + return ret + + +def not_expr(s: Scanner) -> ast.expr: + if s.accept(TokenType.NOT): + return ast.UnaryOp(ast.Not(), not_expr(s)) + if s.accept(TokenType.LPAREN): + ret = expr(s) + s.accept(TokenType.RPAREN, reject=True) + return ret + ident = s.accept(TokenType.IDENT) + if ident: + return ast.Name(IDENT_PREFIX + ident.value, ast.Load()) + s.reject((TokenType.NOT, TokenType.LPAREN, TokenType.IDENT)) + + +class MatcherAdapter(Mapping[str, bool]): + """Adapts a matcher function to a locals mapping as required by eval().""" + + def __init__(self, matcher: Callable[[str], bool]) -> None: + self.matcher = matcher + + def __getitem__(self, key: str) -> bool: + return self.matcher(key[len(IDENT_PREFIX) :]) + + def __iter__(self) -> Iterator[str]: + raise NotImplementedError() + + def __len__(self) -> int: + raise NotImplementedError() + + +class Expression: + """A compiled match expression as used by -k and -m. + + The expression can be evaluated against different matchers. + """ + + __slots__ = ("code",) + + def __init__(self, code: types.CodeType) -> None: + self.code = code + + @classmethod + def compile(self, input: str) -> "Expression": + """Compile a match expression. + + :param input: The input expression - one line. + """ + astexpr = expression(Scanner(input)) + code: types.CodeType = compile( + astexpr, + filename="", + mode="eval", + ) + return Expression(code) + + def evaluate(self, matcher: Callable[[str], bool]) -> bool: + """Evaluate the match expression. + + :param matcher: + Given an identifier, should return whether it matches or not. + Should be prepared to handle arbitrary strings as input. + + :returns: Whether the expression matches or not. + """ + ret: bool = eval(self.code, {"__builtins__": {}}, MatcherAdapter(matcher)) + return ret diff --git a/utils/python-venv/Lib/site-packages/_pytest/mark/structures.py b/utils/python-venv/Lib/site-packages/_pytest/mark/structures.py new file mode 100644 index 0000000..5186c9e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/mark/structures.py @@ -0,0 +1,613 @@ +import collections.abc +import inspect +import warnings +from typing import Any +from typing import Callable +from typing import Collection +from typing import Iterable +from typing import Iterator +from typing import List +from typing import Mapping +from typing import MutableMapping +from typing import NamedTuple +from typing import Optional +from typing import overload +from typing import Sequence +from typing import Set +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import TypeVar +from typing import Union + +import attr + +from .._code import getfslineno +from ..compat import ascii_escaped +from ..compat import final +from ..compat import NOTSET +from ..compat import NotSetType +from _pytest.config import Config +from _pytest.deprecated import check_ispytest +from _pytest.outcomes import fail +from _pytest.warning_types import PytestUnknownMarkWarning + +if TYPE_CHECKING: + from ..nodes import Node + + +EMPTY_PARAMETERSET_OPTION = "empty_parameter_set_mark" + + +def istestfunc(func) -> bool: + return callable(func) and getattr(func, "__name__", "") != "" + + +def get_empty_parameterset_mark( + config: Config, argnames: Sequence[str], func +) -> "MarkDecorator": + from ..nodes import Collector + + fs, lineno = getfslineno(func) + reason = "got empty parameter set %r, function %s at %s:%d" % ( + argnames, + func.__name__, + fs, + lineno, + ) + + requested_mark = config.getini(EMPTY_PARAMETERSET_OPTION) + if requested_mark in ("", None, "skip"): + mark = MARK_GEN.skip(reason=reason) + elif requested_mark == "xfail": + mark = MARK_GEN.xfail(reason=reason, run=False) + elif requested_mark == "fail_at_collect": + f_name = func.__name__ + _, lineno = getfslineno(func) + raise Collector.CollectError( + "Empty parameter set in '%s' at line %d" % (f_name, lineno + 1) + ) + else: + raise LookupError(requested_mark) + return mark + + +class ParameterSet(NamedTuple): + values: Sequence[Union[object, NotSetType]] + marks: Collection[Union["MarkDecorator", "Mark"]] + id: Optional[str] + + @classmethod + def param( + cls, + *values: object, + marks: Union["MarkDecorator", Collection[Union["MarkDecorator", "Mark"]]] = (), + id: Optional[str] = None, + ) -> "ParameterSet": + if isinstance(marks, MarkDecorator): + marks = (marks,) + else: + assert isinstance(marks, collections.abc.Collection) + + if id is not None: + if not isinstance(id, str): + raise TypeError(f"Expected id to be a string, got {type(id)}: {id!r}") + id = ascii_escaped(id) + return cls(values, marks, id) + + @classmethod + def extract_from( + cls, + parameterset: Union["ParameterSet", Sequence[object], object], + force_tuple: bool = False, + ) -> "ParameterSet": + """Extract from an object or objects. + + :param parameterset: + A legacy style parameterset that may or may not be a tuple, + and may or may not be wrapped into a mess of mark objects. + + :param force_tuple: + Enforce tuple wrapping so single argument tuple values + don't get decomposed and break tests. + """ + + if isinstance(parameterset, cls): + return parameterset + if force_tuple: + return cls.param(parameterset) + else: + # TODO: Refactor to fix this type-ignore. Currently the following + # passes type-checking but crashes: + # + # @pytest.mark.parametrize(('x', 'y'), [1, 2]) + # def test_foo(x, y): pass + return cls(parameterset, marks=[], id=None) # type: ignore[arg-type] + + @staticmethod + def _parse_parametrize_args( + argnames: Union[str, Sequence[str]], + argvalues: Iterable[Union["ParameterSet", Sequence[object], object]], + *args, + **kwargs, + ) -> Tuple[Sequence[str], bool]: + if isinstance(argnames, str): + argnames = [x.strip() for x in argnames.split(",") if x.strip()] + force_tuple = len(argnames) == 1 + else: + force_tuple = False + return argnames, force_tuple + + @staticmethod + def _parse_parametrize_parameters( + argvalues: Iterable[Union["ParameterSet", Sequence[object], object]], + force_tuple: bool, + ) -> List["ParameterSet"]: + return [ + ParameterSet.extract_from(x, force_tuple=force_tuple) for x in argvalues + ] + + @classmethod + def _for_parametrize( + cls, + argnames: Union[str, Sequence[str]], + argvalues: Iterable[Union["ParameterSet", Sequence[object], object]], + func, + config: Config, + nodeid: str, + ) -> Tuple[Sequence[str], List["ParameterSet"]]: + argnames, force_tuple = cls._parse_parametrize_args(argnames, argvalues) + parameters = cls._parse_parametrize_parameters(argvalues, force_tuple) + del argvalues + + if parameters: + # Check all parameter sets have the correct number of values. + for param in parameters: + if len(param.values) != len(argnames): + msg = ( + '{nodeid}: in "parametrize" the number of names ({names_len}):\n' + " {names}\n" + "must be equal to the number of values ({values_len}):\n" + " {values}" + ) + fail( + msg.format( + nodeid=nodeid, + values=param.values, + names=argnames, + names_len=len(argnames), + values_len=len(param.values), + ), + pytrace=False, + ) + else: + # Empty parameter set (likely computed at runtime): create a single + # parameter set with NOTSET values, with the "empty parameter set" mark applied to it. + mark = get_empty_parameterset_mark(config, argnames, func) + parameters.append( + ParameterSet(values=(NOTSET,) * len(argnames), marks=[mark], id=None) + ) + return argnames, parameters + + +@final +@attr.s(frozen=True, init=False, auto_attribs=True) +class Mark: + #: Name of the mark. + name: str + #: Positional arguments of the mark decorator. + args: Tuple[Any, ...] + #: Keyword arguments of the mark decorator. + kwargs: Mapping[str, Any] + + #: Source Mark for ids with parametrize Marks. + _param_ids_from: Optional["Mark"] = attr.ib(default=None, repr=False) + #: Resolved/generated ids with parametrize Marks. + _param_ids_generated: Optional[Sequence[str]] = attr.ib(default=None, repr=False) + + def __init__( + self, + name: str, + args: Tuple[Any, ...], + kwargs: Mapping[str, Any], + param_ids_from: Optional["Mark"] = None, + param_ids_generated: Optional[Sequence[str]] = None, + *, + _ispytest: bool = False, + ) -> None: + """:meta private:""" + check_ispytest(_ispytest) + # Weirdness to bypass frozen=True. + object.__setattr__(self, "name", name) + object.__setattr__(self, "args", args) + object.__setattr__(self, "kwargs", kwargs) + object.__setattr__(self, "_param_ids_from", param_ids_from) + object.__setattr__(self, "_param_ids_generated", param_ids_generated) + + def _has_param_ids(self) -> bool: + return "ids" in self.kwargs or len(self.args) >= 4 + + def combined_with(self, other: "Mark") -> "Mark": + """Return a new Mark which is a combination of this + Mark and another Mark. + + Combines by appending args and merging kwargs. + + :param Mark other: The mark to combine with. + :rtype: Mark + """ + assert self.name == other.name + + # Remember source of ids with parametrize Marks. + param_ids_from: Optional[Mark] = None + if self.name == "parametrize": + if other._has_param_ids(): + param_ids_from = other + elif self._has_param_ids(): + param_ids_from = self + + return Mark( + self.name, + self.args + other.args, + dict(self.kwargs, **other.kwargs), + param_ids_from=param_ids_from, + _ispytest=True, + ) + + +# A generic parameter designating an object to which a Mark may +# be applied -- a test function (callable) or class. +# Note: a lambda is not allowed, but this can't be represented. +Markable = TypeVar("Markable", bound=Union[Callable[..., object], type]) + + +@attr.s(init=False, auto_attribs=True) +class MarkDecorator: + """A decorator for applying a mark on test functions and classes. + + ``MarkDecorators`` are created with ``pytest.mark``:: + + mark1 = pytest.mark.NAME # Simple MarkDecorator + mark2 = pytest.mark.NAME(name1=value) # Parametrized MarkDecorator + + and can then be applied as decorators to test functions:: + + @mark2 + def test_function(): + pass + + When a ``MarkDecorator`` is called, it does the following: + + 1. If called with a single class as its only positional argument and no + additional keyword arguments, it attaches the mark to the class so it + gets applied automatically to all test cases found in that class. + + 2. If called with a single function as its only positional argument and + no additional keyword arguments, it attaches the mark to the function, + containing all the arguments already stored internally in the + ``MarkDecorator``. + + 3. When called in any other case, it returns a new ``MarkDecorator`` + instance with the original ``MarkDecorator``'s content updated with + the arguments passed to this call. + + Note: The rules above prevent a ``MarkDecorator`` from storing only a + single function or class reference as its positional argument with no + additional keyword or positional arguments. You can work around this by + using `with_args()`. + """ + + mark: Mark + + def __init__(self, mark: Mark, *, _ispytest: bool = False) -> None: + """:meta private:""" + check_ispytest(_ispytest) + self.mark = mark + + @property + def name(self) -> str: + """Alias for mark.name.""" + return self.mark.name + + @property + def args(self) -> Tuple[Any, ...]: + """Alias for mark.args.""" + return self.mark.args + + @property + def kwargs(self) -> Mapping[str, Any]: + """Alias for mark.kwargs.""" + return self.mark.kwargs + + @property + def markname(self) -> str: + """:meta private:""" + return self.name # for backward-compat (2.4.1 had this attr) + + def with_args(self, *args: object, **kwargs: object) -> "MarkDecorator": + """Return a MarkDecorator with extra arguments added. + + Unlike calling the MarkDecorator, with_args() can be used even + if the sole argument is a callable/class. + """ + mark = Mark(self.name, args, kwargs, _ispytest=True) + return MarkDecorator(self.mark.combined_with(mark), _ispytest=True) + + # Type ignored because the overloads overlap with an incompatible + # return type. Not much we can do about that. Thankfully mypy picks + # the first match so it works out even if we break the rules. + @overload + def __call__(self, arg: Markable) -> Markable: # type: ignore[misc] + pass + + @overload + def __call__(self, *args: object, **kwargs: object) -> "MarkDecorator": + pass + + def __call__(self, *args: object, **kwargs: object): + """Call the MarkDecorator.""" + if args and not kwargs: + func = args[0] + is_class = inspect.isclass(func) + if len(args) == 1 and (istestfunc(func) or is_class): + store_mark(func, self.mark) + return func + return self.with_args(*args, **kwargs) + + +def get_unpacked_marks( + obj: Union[object, type], + *, + consider_mro: bool = True, +) -> List[Mark]: + """Obtain the unpacked marks that are stored on an object. + + If obj is a class and consider_mro is true, return marks applied to + this class and all of its super-classes in MRO order. If consider_mro + is false, only return marks applied directly to this class. + """ + if isinstance(obj, type): + if not consider_mro: + mark_lists = [obj.__dict__.get("pytestmark", [])] + else: + mark_lists = [x.__dict__.get("pytestmark", []) for x in obj.__mro__] + mark_list = [] + for item in mark_lists: + if isinstance(item, list): + mark_list.extend(item) + else: + mark_list.append(item) + else: + mark_attribute = getattr(obj, "pytestmark", []) + if isinstance(mark_attribute, list): + mark_list = mark_attribute + else: + mark_list = [mark_attribute] + return list(normalize_mark_list(mark_list)) + + +def normalize_mark_list( + mark_list: Iterable[Union[Mark, MarkDecorator]] +) -> Iterable[Mark]: + """ + Normalize an iterable of Mark or MarkDecorator objects into a list of marks + by retrieving the `mark` attribute on MarkDecorator instances. + + :param mark_list: marks to normalize + :returns: A new list of the extracted Mark objects + """ + for mark in mark_list: + mark_obj = getattr(mark, "mark", mark) + if not isinstance(mark_obj, Mark): + raise TypeError(f"got {repr(mark_obj)} instead of Mark") + yield mark_obj + + +def store_mark(obj, mark: Mark) -> None: + """Store a Mark on an object. + + This is used to implement the Mark declarations/decorators correctly. + """ + assert isinstance(mark, Mark), mark + # Always reassign name to avoid updating pytestmark in a reference that + # was only borrowed. + obj.pytestmark = [*get_unpacked_marks(obj, consider_mro=False), mark] + + +# Typing for builtin pytest marks. This is cheating; it gives builtin marks +# special privilege, and breaks modularity. But practicality beats purity... +if TYPE_CHECKING: + from _pytest.scope import _ScopeName + + class _SkipMarkDecorator(MarkDecorator): + @overload # type: ignore[override,misc,no-overload-impl] + def __call__(self, arg: Markable) -> Markable: + ... + + @overload + def __call__(self, reason: str = ...) -> "MarkDecorator": + ... + + class _SkipifMarkDecorator(MarkDecorator): + def __call__( # type: ignore[override] + self, + condition: Union[str, bool] = ..., + *conditions: Union[str, bool], + reason: str = ..., + ) -> MarkDecorator: + ... + + class _XfailMarkDecorator(MarkDecorator): + @overload # type: ignore[override,misc,no-overload-impl] + def __call__(self, arg: Markable) -> Markable: + ... + + @overload + def __call__( + self, + condition: Union[str, bool] = ..., + *conditions: Union[str, bool], + reason: str = ..., + run: bool = ..., + raises: Union[Type[BaseException], Tuple[Type[BaseException], ...]] = ..., + strict: bool = ..., + ) -> MarkDecorator: + ... + + class _ParametrizeMarkDecorator(MarkDecorator): + def __call__( # type: ignore[override] + self, + argnames: Union[str, Sequence[str]], + argvalues: Iterable[Union[ParameterSet, Sequence[object], object]], + *, + indirect: Union[bool, Sequence[str]] = ..., + ids: Optional[ + Union[ + Iterable[Union[None, str, float, int, bool]], + Callable[[Any], Optional[object]], + ] + ] = ..., + scope: Optional[_ScopeName] = ..., + ) -> MarkDecorator: + ... + + class _UsefixturesMarkDecorator(MarkDecorator): + def __call__(self, *fixtures: str) -> MarkDecorator: # type: ignore[override] + ... + + class _FilterwarningsMarkDecorator(MarkDecorator): + def __call__(self, *filters: str) -> MarkDecorator: # type: ignore[override] + ... + + +@final +class MarkGenerator: + """Factory for :class:`MarkDecorator` objects - exposed as + a ``pytest.mark`` singleton instance. + + Example:: + + import pytest + + @pytest.mark.slowtest + def test_function(): + pass + + applies a 'slowtest' :class:`Mark` on ``test_function``. + """ + + # See TYPE_CHECKING above. + if TYPE_CHECKING: + skip: _SkipMarkDecorator + skipif: _SkipifMarkDecorator + xfail: _XfailMarkDecorator + parametrize: _ParametrizeMarkDecorator + usefixtures: _UsefixturesMarkDecorator + filterwarnings: _FilterwarningsMarkDecorator + + def __init__(self, *, _ispytest: bool = False) -> None: + check_ispytest(_ispytest) + self._config: Optional[Config] = None + self._markers: Set[str] = set() + + def __getattr__(self, name: str) -> MarkDecorator: + """Generate a new :class:`MarkDecorator` with the given name.""" + if name[0] == "_": + raise AttributeError("Marker name must NOT start with underscore") + + if self._config is not None: + # We store a set of markers as a performance optimisation - if a mark + # name is in the set we definitely know it, but a mark may be known and + # not in the set. We therefore start by updating the set! + if name not in self._markers: + for line in self._config.getini("markers"): + # example lines: "skipif(condition): skip the given test if..." + # or "hypothesis: tests which use Hypothesis", so to get the + # marker name we split on both `:` and `(`. + marker = line.split(":")[0].split("(")[0].strip() + self._markers.add(marker) + + # If the name is not in the set of known marks after updating, + # then it really is time to issue a warning or an error. + if name not in self._markers: + if self._config.option.strict_markers or self._config.option.strict: + fail( + f"{name!r} not found in `markers` configuration option", + pytrace=False, + ) + + # Raise a specific error for common misspellings of "parametrize". + if name in ["parameterize", "parametrise", "parameterise"]: + __tracebackhide__ = True + fail(f"Unknown '{name}' mark, did you mean 'parametrize'?") + + warnings.warn( + "Unknown pytest.mark.%s - is this a typo? You can register " + "custom marks to avoid this warning - for details, see " + "https://docs.pytest.org/en/stable/how-to/mark.html" % name, + PytestUnknownMarkWarning, + 2, + ) + + return MarkDecorator(Mark(name, (), {}, _ispytest=True), _ispytest=True) + + +MARK_GEN = MarkGenerator(_ispytest=True) + + +@final +class NodeKeywords(MutableMapping[str, Any]): + __slots__ = ("node", "parent", "_markers") + + def __init__(self, node: "Node") -> None: + self.node = node + self.parent = node.parent + self._markers = {node.name: True} + + def __getitem__(self, key: str) -> Any: + try: + return self._markers[key] + except KeyError: + if self.parent is None: + raise + return self.parent.keywords[key] + + def __setitem__(self, key: str, value: Any) -> None: + self._markers[key] = value + + # Note: we could've avoided explicitly implementing some of the methods + # below and use the collections.abc fallback, but that would be slow. + + def __contains__(self, key: object) -> bool: + return ( + key in self._markers + or self.parent is not None + and key in self.parent.keywords + ) + + def update( # type: ignore[override] + self, + other: Union[Mapping[str, Any], Iterable[Tuple[str, Any]]] = (), + **kwds: Any, + ) -> None: + self._markers.update(other) + self._markers.update(kwds) + + def __delitem__(self, key: str) -> None: + raise ValueError("cannot delete key in keywords dict") + + def __iter__(self) -> Iterator[str]: + # Doesn't need to be fast. + yield from self._markers + if self.parent is not None: + for keyword in self.parent.keywords: + # self._marks and self.parent.keywords can have duplicates. + if keyword not in self._markers: + yield keyword + + def __len__(self) -> int: + # Doesn't need to be fast. + return sum(1 for keyword in self) + + def __repr__(self) -> str: + return f"" diff --git a/utils/python-venv/Lib/site-packages/_pytest/monkeypatch.py b/utils/python-venv/Lib/site-packages/_pytest/monkeypatch.py new file mode 100644 index 0000000..c6e29ac --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/monkeypatch.py @@ -0,0 +1,416 @@ +"""Monkeypatching and mocking functionality.""" +import os +import re +import sys +import warnings +from contextlib import contextmanager +from typing import Any +from typing import Generator +from typing import List +from typing import MutableMapping +from typing import Optional +from typing import overload +from typing import Tuple +from typing import TypeVar +from typing import Union + +from _pytest.compat import final +from _pytest.fixtures import fixture +from _pytest.warning_types import PytestWarning + +RE_IMPORT_ERROR_NAME = re.compile(r"^No module named (.*)$") + + +K = TypeVar("K") +V = TypeVar("V") + + +@fixture +def monkeypatch() -> Generator["MonkeyPatch", None, None]: + """A convenient fixture for monkey-patching. + + The fixture provides these methods to modify objects, dictionaries, or + :data:`os.environ`: + + * :meth:`monkeypatch.setattr(obj, name, value, raising=True) ` + * :meth:`monkeypatch.delattr(obj, name, raising=True) ` + * :meth:`monkeypatch.setitem(mapping, name, value) ` + * :meth:`monkeypatch.delitem(obj, name, raising=True) ` + * :meth:`monkeypatch.setenv(name, value, prepend=None) ` + * :meth:`monkeypatch.delenv(name, raising=True) ` + * :meth:`monkeypatch.syspath_prepend(path) ` + * :meth:`monkeypatch.chdir(path) ` + * :meth:`monkeypatch.context() ` + + All modifications will be undone after the requesting test function or + fixture has finished. The ``raising`` parameter determines if a :class:`KeyError` + or :class:`AttributeError` will be raised if the set/deletion operation does not have the + specified target. + + To undo modifications done by the fixture in a contained scope, + use :meth:`context() `. + """ + mpatch = MonkeyPatch() + yield mpatch + mpatch.undo() + + +def resolve(name: str) -> object: + # Simplified from zope.dottedname. + parts = name.split(".") + + used = parts.pop(0) + found: object = __import__(used) + for part in parts: + used += "." + part + try: + found = getattr(found, part) + except AttributeError: + pass + else: + continue + # We use explicit un-nesting of the handling block in order + # to avoid nested exceptions. + try: + __import__(used) + except ImportError as ex: + expected = str(ex).split()[-1] + if expected == used: + raise + else: + raise ImportError(f"import error in {used}: {ex}") from ex + found = annotated_getattr(found, part, used) + return found + + +def annotated_getattr(obj: object, name: str, ann: str) -> object: + try: + obj = getattr(obj, name) + except AttributeError as e: + raise AttributeError( + "{!r} object at {} has no attribute {!r}".format( + type(obj).__name__, ann, name + ) + ) from e + return obj + + +def derive_importpath(import_path: str, raising: bool) -> Tuple[str, object]: + if not isinstance(import_path, str) or "." not in import_path: + raise TypeError(f"must be absolute import path string, not {import_path!r}") + module, attr = import_path.rsplit(".", 1) + target = resolve(module) + if raising: + annotated_getattr(target, attr, ann=module) + return attr, target + + +class Notset: + def __repr__(self) -> str: + return "" + + +notset = Notset() + + +@final +class MonkeyPatch: + """Helper to conveniently monkeypatch attributes/items/environment + variables/syspath. + + Returned by the :fixture:`monkeypatch` fixture. + + .. versionchanged:: 6.2 + Can now also be used directly as `pytest.MonkeyPatch()`, for when + the fixture is not available. In this case, use + :meth:`with MonkeyPatch.context() as mp: ` or remember to call + :meth:`undo` explicitly. + """ + + def __init__(self) -> None: + self._setattr: List[Tuple[object, str, object]] = [] + self._setitem: List[Tuple[MutableMapping[Any, Any], object, object]] = [] + self._cwd: Optional[str] = None + self._savesyspath: Optional[List[str]] = None + + @classmethod + @contextmanager + def context(cls) -> Generator["MonkeyPatch", None, None]: + """Context manager that returns a new :class:`MonkeyPatch` object + which undoes any patching done inside the ``with`` block upon exit. + + Example: + + .. code-block:: python + + import functools + + + def test_partial(monkeypatch): + with monkeypatch.context() as m: + m.setattr(functools, "partial", 3) + + Useful in situations where it is desired to undo some patches before the test ends, + such as mocking ``stdlib`` functions that might break pytest itself if mocked (for examples + of this see :issue:`3290`). + """ + m = cls() + try: + yield m + finally: + m.undo() + + @overload + def setattr( + self, + target: str, + name: object, + value: Notset = ..., + raising: bool = ..., + ) -> None: + ... + + @overload + def setattr( + self, + target: object, + name: str, + value: object, + raising: bool = ..., + ) -> None: + ... + + def setattr( + self, + target: Union[str, object], + name: Union[object, str], + value: object = notset, + raising: bool = True, + ) -> None: + """ + Set attribute value on target, memorizing the old value. + + For example: + + .. code-block:: python + + import os + + monkeypatch.setattr(os, "getcwd", lambda: "/") + + The code above replaces the :func:`os.getcwd` function by a ``lambda`` which + always returns ``"/"``. + + For convenience, you can specify a string as ``target`` which + will be interpreted as a dotted import path, with the last part + being the attribute name: + + .. code-block:: python + + monkeypatch.setattr("os.getcwd", lambda: "/") + + Raises :class:`AttributeError` if the attribute does not exist, unless + ``raising`` is set to False. + + **Where to patch** + + ``monkeypatch.setattr`` works by (temporarily) changing the object that a name points to with another one. + There can be many names pointing to any individual object, so for patching to work you must ensure + that you patch the name used by the system under test. + + See the section :ref:`Where to patch ` in the :mod:`unittest.mock` + docs for a complete explanation, which is meant for :func:`unittest.mock.patch` but + applies to ``monkeypatch.setattr`` as well. + """ + __tracebackhide__ = True + import inspect + + if isinstance(value, Notset): + if not isinstance(target, str): + raise TypeError( + "use setattr(target, name, value) or " + "setattr(target, value) with target being a dotted " + "import string" + ) + value = name + name, target = derive_importpath(target, raising) + else: + if not isinstance(name, str): + raise TypeError( + "use setattr(target, name, value) with name being a string or " + "setattr(target, value) with target being a dotted " + "import string" + ) + + oldval = getattr(target, name, notset) + if raising and oldval is notset: + raise AttributeError(f"{target!r} has no attribute {name!r}") + + # avoid class descriptors like staticmethod/classmethod + if inspect.isclass(target): + oldval = target.__dict__.get(name, notset) + self._setattr.append((target, name, oldval)) + setattr(target, name, value) + + def delattr( + self, + target: Union[object, str], + name: Union[str, Notset] = notset, + raising: bool = True, + ) -> None: + """Delete attribute ``name`` from ``target``. + + If no ``name`` is specified and ``target`` is a string + it will be interpreted as a dotted import path with the + last part being the attribute name. + + Raises AttributeError it the attribute does not exist, unless + ``raising`` is set to False. + """ + __tracebackhide__ = True + import inspect + + if isinstance(name, Notset): + if not isinstance(target, str): + raise TypeError( + "use delattr(target, name) or " + "delattr(target) with target being a dotted " + "import string" + ) + name, target = derive_importpath(target, raising) + + if not hasattr(target, name): + if raising: + raise AttributeError(name) + else: + oldval = getattr(target, name, notset) + # Avoid class descriptors like staticmethod/classmethod. + if inspect.isclass(target): + oldval = target.__dict__.get(name, notset) + self._setattr.append((target, name, oldval)) + delattr(target, name) + + def setitem(self, dic: MutableMapping[K, V], name: K, value: V) -> None: + """Set dictionary entry ``name`` to value.""" + self._setitem.append((dic, name, dic.get(name, notset))) + dic[name] = value + + def delitem(self, dic: MutableMapping[K, V], name: K, raising: bool = True) -> None: + """Delete ``name`` from dict. + + Raises ``KeyError`` if it doesn't exist, unless ``raising`` is set to + False. + """ + if name not in dic: + if raising: + raise KeyError(name) + else: + self._setitem.append((dic, name, dic.get(name, notset))) + del dic[name] + + def setenv(self, name: str, value: str, prepend: Optional[str] = None) -> None: + """Set environment variable ``name`` to ``value``. + + If ``prepend`` is a character, read the current environment variable + value and prepend the ``value`` adjoined with the ``prepend`` + character. + """ + if not isinstance(value, str): + warnings.warn( # type: ignore[unreachable] + PytestWarning( + "Value of environment variable {name} type should be str, but got " + "{value!r} (type: {type}); converted to str implicitly".format( + name=name, value=value, type=type(value).__name__ + ) + ), + stacklevel=2, + ) + value = str(value) + if prepend and name in os.environ: + value = value + prepend + os.environ[name] + self.setitem(os.environ, name, value) + + def delenv(self, name: str, raising: bool = True) -> None: + """Delete ``name`` from the environment. + + Raises ``KeyError`` if it does not exist, unless ``raising`` is set to + False. + """ + environ: MutableMapping[str, str] = os.environ + self.delitem(environ, name, raising=raising) + + def syspath_prepend(self, path) -> None: + """Prepend ``path`` to ``sys.path`` list of import locations.""" + + if self._savesyspath is None: + self._savesyspath = sys.path[:] + sys.path.insert(0, str(path)) + + # https://github.com/pypa/setuptools/blob/d8b901bc/docs/pkg_resources.txt#L162-L171 + # this is only needed when pkg_resources was already loaded by the namespace package + if "pkg_resources" in sys.modules: + from pkg_resources import fixup_namespace_packages + + fixup_namespace_packages(str(path)) + + # A call to syspathinsert() usually means that the caller wants to + # import some dynamically created files, thus with python3 we + # invalidate its import caches. + # This is especially important when any namespace package is in use, + # since then the mtime based FileFinder cache (that gets created in + # this case already) gets not invalidated when writing the new files + # quickly afterwards. + from importlib import invalidate_caches + + invalidate_caches() + + def chdir(self, path: Union[str, "os.PathLike[str]"]) -> None: + """Change the current working directory to the specified path. + + :param path: + The path to change into. + """ + if self._cwd is None: + self._cwd = os.getcwd() + os.chdir(path) + + def undo(self) -> None: + """Undo previous changes. + + This call consumes the undo stack. Calling it a second time has no + effect unless you do more monkeypatching after the undo call. + + There is generally no need to call `undo()`, since it is + called automatically during tear-down. + + .. note:: + The same `monkeypatch` fixture is used across a + single test function invocation. If `monkeypatch` is used both by + the test function itself and one of the test fixtures, + calling `undo()` will undo all of the changes made in + both functions. + + Prefer to use :meth:`context() ` instead. + """ + for obj, name, value in reversed(self._setattr): + if value is not notset: + setattr(obj, name, value) + else: + delattr(obj, name) + self._setattr[:] = [] + for dictionary, key, value in reversed(self._setitem): + if value is notset: + try: + del dictionary[key] + except KeyError: + pass # Was already deleted, so we have the desired state. + else: + dictionary[key] = value + self._setitem[:] = [] + if self._savesyspath is not None: + sys.path[:] = self._savesyspath + self._savesyspath = None + + if self._cwd is not None: + os.chdir(self._cwd) + self._cwd = None diff --git a/utils/python-venv/Lib/site-packages/_pytest/nodes.py b/utils/python-venv/Lib/site-packages/_pytest/nodes.py new file mode 100644 index 0000000..cfb9b5a --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/nodes.py @@ -0,0 +1,771 @@ +import os +import warnings +from inspect import signature +from pathlib import Path +from typing import Any +from typing import Callable +from typing import cast +from typing import Iterable +from typing import Iterator +from typing import List +from typing import MutableMapping +from typing import Optional +from typing import overload +from typing import Set +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import TypeVar +from typing import Union + +import _pytest._code +from _pytest._code import getfslineno +from _pytest._code.code import ExceptionInfo +from _pytest._code.code import TerminalRepr +from _pytest.compat import cached_property +from _pytest.compat import LEGACY_PATH +from _pytest.config import Config +from _pytest.config import ConftestImportFailure +from _pytest.deprecated import FSCOLLECTOR_GETHOOKPROXY_ISINITPATH +from _pytest.deprecated import NODE_CTOR_FSPATH_ARG +from _pytest.mark.structures import Mark +from _pytest.mark.structures import MarkDecorator +from _pytest.mark.structures import NodeKeywords +from _pytest.outcomes import fail +from _pytest.pathlib import absolutepath +from _pytest.pathlib import commonpath +from _pytest.stash import Stash +from _pytest.warning_types import PytestWarning + +if TYPE_CHECKING: + # Imported here due to circular import. + from _pytest.main import Session + from _pytest._code.code import _TracebackStyle + + +SEP = "/" + +tracebackcutdir = Path(_pytest.__file__).parent + + +def iterparentnodeids(nodeid: str) -> Iterator[str]: + """Return the parent node IDs of a given node ID, inclusive. + + For the node ID + + "testing/code/test_excinfo.py::TestFormattedExcinfo::test_repr_source" + + the result would be + + "" + "testing" + "testing/code" + "testing/code/test_excinfo.py" + "testing/code/test_excinfo.py::TestFormattedExcinfo" + "testing/code/test_excinfo.py::TestFormattedExcinfo::test_repr_source" + + Note that / components are only considered until the first ::. + """ + pos = 0 + first_colons: Optional[int] = nodeid.find("::") + if first_colons == -1: + first_colons = None + # The root Session node - always present. + yield "" + # Eagerly consume SEP parts until first colons. + while True: + at = nodeid.find(SEP, pos, first_colons) + if at == -1: + break + if at > 0: + yield nodeid[:at] + pos = at + len(SEP) + # Eagerly consume :: parts. + while True: + at = nodeid.find("::", pos) + if at == -1: + break + if at > 0: + yield nodeid[:at] + pos = at + len("::") + # The node ID itself. + if nodeid: + yield nodeid + + +def _check_path(path: Path, fspath: LEGACY_PATH) -> None: + if Path(fspath) != path: + raise ValueError( + f"Path({fspath!r}) != {path!r}\n" + "if both path and fspath are given they need to be equal" + ) + + +def _imply_path( + node_type: Type["Node"], + path: Optional[Path], + fspath: Optional[LEGACY_PATH], +) -> Path: + if fspath is not None: + warnings.warn( + NODE_CTOR_FSPATH_ARG.format( + node_type_name=node_type.__name__, + ), + stacklevel=6, + ) + if path is not None: + if fspath is not None: + _check_path(path, fspath) + return path + else: + assert fspath is not None + return Path(fspath) + + +_NodeType = TypeVar("_NodeType", bound="Node") + + +class NodeMeta(type): + def __call__(self, *k, **kw): + msg = ( + "Direct construction of {name} has been deprecated, please use {name}.from_parent.\n" + "See " + "https://docs.pytest.org/en/stable/deprecations.html#node-construction-changed-to-node-from-parent" + " for more details." + ).format(name=f"{self.__module__}.{self.__name__}") + fail(msg, pytrace=False) + + def _create(self, *k, **kw): + try: + return super().__call__(*k, **kw) + except TypeError: + sig = signature(getattr(self, "__init__")) + known_kw = {k: v for k, v in kw.items() if k in sig.parameters} + from .warning_types import PytestDeprecationWarning + + warnings.warn( + PytestDeprecationWarning( + f"{self} is not using a cooperative constructor and only takes {set(known_kw)}.\n" + "See https://docs.pytest.org/en/stable/deprecations.html" + "#constructors-of-custom-pytest-node-subclasses-should-take-kwargs " + "for more details." + ) + ) + + return super().__call__(*k, **known_kw) + + +class Node(metaclass=NodeMeta): + """Base class for Collector and Item, the components of the test + collection tree. + + Collector subclasses have children; Items are leaf nodes. + """ + + # Implemented in the legacypath plugin. + #: A ``LEGACY_PATH`` copy of the :attr:`path` attribute. Intended for usage + #: for methods not migrated to ``pathlib.Path`` yet, such as + #: :meth:`Item.reportinfo`. Will be deprecated in a future release, prefer + #: using :attr:`path` instead. + fspath: LEGACY_PATH + + # Use __slots__ to make attribute access faster. + # Note that __dict__ is still available. + __slots__ = ( + "name", + "parent", + "config", + "session", + "path", + "_nodeid", + "_store", + "__dict__", + ) + + def __init__( + self, + name: str, + parent: "Optional[Node]" = None, + config: Optional[Config] = None, + session: "Optional[Session]" = None, + fspath: Optional[LEGACY_PATH] = None, + path: Optional[Path] = None, + nodeid: Optional[str] = None, + ) -> None: + #: A unique name within the scope of the parent node. + self.name: str = name + + #: The parent collector node. + self.parent = parent + + if config: + #: The pytest config object. + self.config: Config = config + else: + if not parent: + raise TypeError("config or parent must be provided") + self.config = parent.config + + if session: + #: The pytest session this node is part of. + self.session: Session = session + else: + if not parent: + raise TypeError("session or parent must be provided") + self.session = parent.session + + if path is None and fspath is None: + path = getattr(parent, "path", None) + #: Filesystem path where this node was collected from (can be None). + self.path: Path = _imply_path(type(self), path, fspath=fspath) + + # The explicit annotation is to avoid publicly exposing NodeKeywords. + #: Keywords/markers collected from all scopes. + self.keywords: MutableMapping[str, Any] = NodeKeywords(self) + + #: The marker objects belonging to this node. + self.own_markers: List[Mark] = [] + + #: Allow adding of extra keywords to use for matching. + self.extra_keyword_matches: Set[str] = set() + + if nodeid is not None: + assert "::()" not in nodeid + self._nodeid = nodeid + else: + if not self.parent: + raise TypeError("nodeid or parent must be provided") + self._nodeid = self.parent.nodeid + "::" + self.name + + #: A place where plugins can store information on the node for their + #: own use. + self.stash: Stash = Stash() + # Deprecated alias. Was never public. Can be removed in a few releases. + self._store = self.stash + + @classmethod + def from_parent(cls, parent: "Node", **kw): + """Public constructor for Nodes. + + This indirection got introduced in order to enable removing + the fragile logic from the node constructors. + + Subclasses can use ``super().from_parent(...)`` when overriding the + construction. + + :param parent: The parent node of this Node. + """ + if "config" in kw: + raise TypeError("config is not a valid argument for from_parent") + if "session" in kw: + raise TypeError("session is not a valid argument for from_parent") + return cls._create(parent=parent, **kw) + + @property + def ihook(self): + """fspath-sensitive hook proxy used to call pytest hooks.""" + return self.session.gethookproxy(self.path) + + def __repr__(self) -> str: + return "<{} {}>".format(self.__class__.__name__, getattr(self, "name", None)) + + def warn(self, warning: Warning) -> None: + """Issue a warning for this Node. + + Warnings will be displayed after the test session, unless explicitly suppressed. + + :param Warning warning: + The warning instance to issue. + + :raises ValueError: If ``warning`` instance is not a subclass of Warning. + + Example usage: + + .. code-block:: python + + node.warn(PytestWarning("some message")) + node.warn(UserWarning("some message")) + + .. versionchanged:: 6.2 + Any subclass of :class:`Warning` is now accepted, rather than only + :class:`PytestWarning ` subclasses. + """ + # enforce type checks here to avoid getting a generic type error later otherwise. + if not isinstance(warning, Warning): + raise ValueError( + "warning must be an instance of Warning or subclass, got {!r}".format( + warning + ) + ) + path, lineno = get_fslocation_from_item(self) + assert lineno is not None + warnings.warn_explicit( + warning, + category=None, + filename=str(path), + lineno=lineno + 1, + ) + + # Methods for ordering nodes. + + @property + def nodeid(self) -> str: + """A ::-separated string denoting its collection tree address.""" + return self._nodeid + + def __hash__(self) -> int: + return hash(self._nodeid) + + def setup(self) -> None: + pass + + def teardown(self) -> None: + pass + + def listchain(self) -> List["Node"]: + """Return list of all parent collectors up to self, starting from + the root of collection tree. + + :returns: The nodes. + """ + chain = [] + item: Optional[Node] = self + while item is not None: + chain.append(item) + item = item.parent + chain.reverse() + return chain + + def add_marker( + self, marker: Union[str, MarkDecorator], append: bool = True + ) -> None: + """Dynamically add a marker object to the node. + + :param marker: + The marker. + :param append: + Whether to append the marker, or prepend it. + """ + from _pytest.mark import MARK_GEN + + if isinstance(marker, MarkDecorator): + marker_ = marker + elif isinstance(marker, str): + marker_ = getattr(MARK_GEN, marker) + else: + raise ValueError("is not a string or pytest.mark.* Marker") + self.keywords[marker_.name] = marker_ + if append: + self.own_markers.append(marker_.mark) + else: + self.own_markers.insert(0, marker_.mark) + + def iter_markers(self, name: Optional[str] = None) -> Iterator[Mark]: + """Iterate over all markers of the node. + + :param name: If given, filter the results by the name attribute. + :returns: An iterator of the markers of the node. + """ + return (x[1] for x in self.iter_markers_with_node(name=name)) + + def iter_markers_with_node( + self, name: Optional[str] = None + ) -> Iterator[Tuple["Node", Mark]]: + """Iterate over all markers of the node. + + :param name: If given, filter the results by the name attribute. + :returns: An iterator of (node, mark) tuples. + """ + for node in reversed(self.listchain()): + for mark in node.own_markers: + if name is None or getattr(mark, "name", None) == name: + yield node, mark + + @overload + def get_closest_marker(self, name: str) -> Optional[Mark]: + ... + + @overload + def get_closest_marker(self, name: str, default: Mark) -> Mark: + ... + + def get_closest_marker( + self, name: str, default: Optional[Mark] = None + ) -> Optional[Mark]: + """Return the first marker matching the name, from closest (for + example function) to farther level (for example module level). + + :param default: Fallback return value if no marker was found. + :param name: Name to filter by. + """ + return next(self.iter_markers(name=name), default) + + def listextrakeywords(self) -> Set[str]: + """Return a set of all extra keywords in self and any parents.""" + extra_keywords: Set[str] = set() + for item in self.listchain(): + extra_keywords.update(item.extra_keyword_matches) + return extra_keywords + + def listnames(self) -> List[str]: + return [x.name for x in self.listchain()] + + def addfinalizer(self, fin: Callable[[], object]) -> None: + """Register a function to be called without arguments when this node is + finalized. + + This method can only be called when this node is active + in a setup chain, for example during self.setup(). + """ + self.session._setupstate.addfinalizer(fin, self) + + def getparent(self, cls: Type[_NodeType]) -> Optional[_NodeType]: + """Get the next parent node (including self) which is an instance of + the given class. + + :param cls: The node class to search for. + :returns: The node, if found. + """ + current: Optional[Node] = self + while current and not isinstance(current, cls): + current = current.parent + assert current is None or isinstance(current, cls) + return current + + def _prunetraceback(self, excinfo: ExceptionInfo[BaseException]) -> None: + pass + + def _repr_failure_py( + self, + excinfo: ExceptionInfo[BaseException], + style: "Optional[_TracebackStyle]" = None, + ) -> TerminalRepr: + from _pytest.fixtures import FixtureLookupError + + if isinstance(excinfo.value, ConftestImportFailure): + excinfo = ExceptionInfo.from_exc_info(excinfo.value.excinfo) + if isinstance(excinfo.value, fail.Exception): + if not excinfo.value.pytrace: + style = "value" + if isinstance(excinfo.value, FixtureLookupError): + return excinfo.value.formatrepr() + if self.config.getoption("fulltrace", False): + style = "long" + else: + tb = _pytest._code.Traceback([excinfo.traceback[-1]]) + self._prunetraceback(excinfo) + if len(excinfo.traceback) == 0: + excinfo.traceback = tb + if style == "auto": + style = "long" + # XXX should excinfo.getrepr record all data and toterminal() process it? + if style is None: + if self.config.getoption("tbstyle", "auto") == "short": + style = "short" + else: + style = "long" + + if self.config.getoption("verbose", 0) > 1: + truncate_locals = False + else: + truncate_locals = True + + # excinfo.getrepr() formats paths relative to the CWD if `abspath` is False. + # It is possible for a fixture/test to change the CWD while this code runs, which + # would then result in the user seeing confusing paths in the failure message. + # To fix this, if the CWD changed, always display the full absolute path. + # It will be better to just always display paths relative to invocation_dir, but + # this requires a lot of plumbing (#6428). + try: + abspath = Path(os.getcwd()) != self.config.invocation_params.dir + except OSError: + abspath = True + + return excinfo.getrepr( + funcargs=True, + abspath=abspath, + showlocals=self.config.getoption("showlocals", False), + style=style, + tbfilter=False, # pruned already, or in --fulltrace mode. + truncate_locals=truncate_locals, + ) + + def repr_failure( + self, + excinfo: ExceptionInfo[BaseException], + style: "Optional[_TracebackStyle]" = None, + ) -> Union[str, TerminalRepr]: + """Return a representation of a collection or test failure. + + .. seealso:: :ref:`non-python tests` + + :param excinfo: Exception information for the failure. + """ + return self._repr_failure_py(excinfo, style) + + +def get_fslocation_from_item(node: "Node") -> Tuple[Union[str, Path], Optional[int]]: + """Try to extract the actual location from a node, depending on available attributes: + + * "location": a pair (path, lineno) + * "obj": a Python object that the node wraps. + * "fspath": just a path + + :rtype: A tuple of (str|Path, int) with filename and line number. + """ + # See Item.location. + location: Optional[Tuple[str, Optional[int], str]] = getattr(node, "location", None) + if location is not None: + return location[:2] + obj = getattr(node, "obj", None) + if obj is not None: + return getfslineno(obj) + return getattr(node, "fspath", "unknown location"), -1 + + +class Collector(Node): + """Collector instances create children through collect() and thus + iteratively build a tree.""" + + class CollectError(Exception): + """An error during collection, contains a custom message.""" + + def collect(self) -> Iterable[Union["Item", "Collector"]]: + """Return a list of children (items and collectors) for this + collection node.""" + raise NotImplementedError("abstract") + + # TODO: This omits the style= parameter which breaks Liskov Substitution. + def repr_failure( # type: ignore[override] + self, excinfo: ExceptionInfo[BaseException] + ) -> Union[str, TerminalRepr]: + """Return a representation of a collection failure. + + :param excinfo: Exception information for the failure. + """ + if isinstance(excinfo.value, self.CollectError) and not self.config.getoption( + "fulltrace", False + ): + exc = excinfo.value + return str(exc.args[0]) + + # Respect explicit tbstyle option, but default to "short" + # (_repr_failure_py uses "long" with "fulltrace" option always). + tbstyle = self.config.getoption("tbstyle", "auto") + if tbstyle == "auto": + tbstyle = "short" + + return self._repr_failure_py(excinfo, style=tbstyle) + + def _prunetraceback(self, excinfo: ExceptionInfo[BaseException]) -> None: + if hasattr(self, "path"): + traceback = excinfo.traceback + ntraceback = traceback.cut(path=self.path) + if ntraceback == traceback: + ntraceback = ntraceback.cut(excludepath=tracebackcutdir) + excinfo.traceback = ntraceback.filter() + + +def _check_initialpaths_for_relpath(session: "Session", path: Path) -> Optional[str]: + for initial_path in session._initialpaths: + if commonpath(path, initial_path) == initial_path: + rel = str(path.relative_to(initial_path)) + return "" if rel == "." else rel + return None + + +class FSCollector(Collector): + def __init__( + self, + fspath: Optional[LEGACY_PATH] = None, + path_or_parent: Optional[Union[Path, Node]] = None, + path: Optional[Path] = None, + name: Optional[str] = None, + parent: Optional[Node] = None, + config: Optional[Config] = None, + session: Optional["Session"] = None, + nodeid: Optional[str] = None, + ) -> None: + if path_or_parent: + if isinstance(path_or_parent, Node): + assert parent is None + parent = cast(FSCollector, path_or_parent) + elif isinstance(path_or_parent, Path): + assert path is None + path = path_or_parent + + path = _imply_path(type(self), path, fspath=fspath) + if name is None: + name = path.name + if parent is not None and parent.path != path: + try: + rel = path.relative_to(parent.path) + except ValueError: + pass + else: + name = str(rel) + name = name.replace(os.sep, SEP) + self.path = path + + if session is None: + assert parent is not None + session = parent.session + + if nodeid is None: + try: + nodeid = str(self.path.relative_to(session.config.rootpath)) + except ValueError: + nodeid = _check_initialpaths_for_relpath(session, path) + + if nodeid and os.sep != SEP: + nodeid = nodeid.replace(os.sep, SEP) + + super().__init__( + name=name, + parent=parent, + config=config, + session=session, + nodeid=nodeid, + path=path, + ) + + @classmethod + def from_parent( + cls, + parent, + *, + fspath: Optional[LEGACY_PATH] = None, + path: Optional[Path] = None, + **kw, + ): + """The public constructor.""" + return super().from_parent(parent=parent, fspath=fspath, path=path, **kw) + + def gethookproxy(self, fspath: "os.PathLike[str]"): + warnings.warn(FSCOLLECTOR_GETHOOKPROXY_ISINITPATH, stacklevel=2) + return self.session.gethookproxy(fspath) + + def isinitpath(self, path: Union[str, "os.PathLike[str]"]) -> bool: + warnings.warn(FSCOLLECTOR_GETHOOKPROXY_ISINITPATH, stacklevel=2) + return self.session.isinitpath(path) + + +class File(FSCollector): + """Base class for collecting tests from a file. + + :ref:`non-python tests`. + """ + + +class Item(Node): + """A basic test invocation item. + + Note that for a single function there might be multiple test invocation items. + """ + + nextitem = None + + def __init__( + self, + name, + parent=None, + config: Optional[Config] = None, + session: Optional["Session"] = None, + nodeid: Optional[str] = None, + **kw, + ) -> None: + # The first two arguments are intentionally passed positionally, + # to keep plugins who define a node type which inherits from + # (pytest.Item, pytest.File) working (see issue #8435). + # They can be made kwargs when the deprecation above is done. + super().__init__( + name, + parent, + config=config, + session=session, + nodeid=nodeid, + **kw, + ) + self._report_sections: List[Tuple[str, str, str]] = [] + + #: A list of tuples (name, value) that holds user defined properties + #: for this test. + self.user_properties: List[Tuple[str, object]] = [] + + self._check_item_and_collector_diamond_inheritance() + + def _check_item_and_collector_diamond_inheritance(self) -> None: + """ + Check if the current type inherits from both File and Collector + at the same time, emitting a warning accordingly (#8447). + """ + cls = type(self) + + # We inject an attribute in the type to avoid issuing this warning + # for the same class more than once, which is not helpful. + # It is a hack, but was deemed acceptable in order to avoid + # flooding the user in the common case. + attr_name = "_pytest_diamond_inheritance_warning_shown" + if getattr(cls, attr_name, False): + return + setattr(cls, attr_name, True) + + problems = ", ".join( + base.__name__ for base in cls.__bases__ if issubclass(base, Collector) + ) + if problems: + warnings.warn( + f"{cls.__name__} is an Item subclass and should not be a collector, " + f"however its bases {problems} are collectors.\n" + "Please split the Collectors and the Item into separate node types.\n" + "Pytest Doc example: https://docs.pytest.org/en/latest/example/nonpython.html\n" + "example pull request on a plugin: https://github.com/asmeurer/pytest-flakes/pull/40/", + PytestWarning, + ) + + def runtest(self) -> None: + """Run the test case for this item. + + Must be implemented by subclasses. + + .. seealso:: :ref:`non-python tests` + """ + raise NotImplementedError("runtest must be implemented by Item subclass") + + def add_report_section(self, when: str, key: str, content: str) -> None: + """Add a new report section, similar to what's done internally to add + stdout and stderr captured output:: + + item.add_report_section("call", "stdout", "report section contents") + + :param str when: + One of the possible capture states, ``"setup"``, ``"call"``, ``"teardown"``. + :param str key: + Name of the section, can be customized at will. Pytest uses ``"stdout"`` and + ``"stderr"`` internally. + :param str content: + The full contents as a string. + """ + if content: + self._report_sections.append((when, key, content)) + + def reportinfo(self) -> Tuple[Union["os.PathLike[str]", str], Optional[int], str]: + """Get location information for this item for test reports. + + Returns a tuple with three elements: + + - The path of the test (default ``self.path``) + - The line number of the test (default ``None``) + - A name of the test to be shown (default ``""``) + + .. seealso:: :ref:`non-python tests` + """ + return self.path, None, "" + + @cached_property + def location(self) -> Tuple[str, Optional[int], str]: + location = self.reportinfo() + path = absolutepath(os.fspath(location[0])) + relfspath = self.session._node_location_to_relpath(path) + assert type(location[2]) is str + return (relfspath, location[1], location[2]) diff --git a/utils/python-venv/Lib/site-packages/_pytest/nose.py b/utils/python-venv/Lib/site-packages/_pytest/nose.py new file mode 100644 index 0000000..273bd04 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/nose.py @@ -0,0 +1,50 @@ +"""Run testsuites written for nose.""" +import warnings + +from _pytest.config import hookimpl +from _pytest.deprecated import NOSE_SUPPORT +from _pytest.fixtures import getfixturemarker +from _pytest.nodes import Item +from _pytest.python import Function +from _pytest.unittest import TestCaseFunction + + +@hookimpl(trylast=True) +def pytest_runtest_setup(item: Item) -> None: + if not isinstance(item, Function): + return + # Don't do nose style setup/teardown on direct unittest style classes. + if isinstance(item, TestCaseFunction): + return + + # Capture the narrowed type of item for the teardown closure, + # see https://github.com/python/mypy/issues/2608 + func = item + + call_optional(func.obj, "setup", func.nodeid) + func.addfinalizer(lambda: call_optional(func.obj, "teardown", func.nodeid)) + + # NOTE: Module- and class-level fixtures are handled in python.py + # with `pluginmanager.has_plugin("nose")` checks. + # It would have been nicer to implement them outside of core, but + # it's not straightforward. + + +def call_optional(obj: object, name: str, nodeid: str) -> bool: + method = getattr(obj, name, None) + if method is None: + return False + is_fixture = getfixturemarker(method) is not None + if is_fixture: + return False + if not callable(method): + return False + # Warn about deprecation of this plugin. + method_name = getattr(method, "__name__", str(method)) + warnings.warn( + NOSE_SUPPORT.format(nodeid=nodeid, method=method_name, stage=name), stacklevel=2 + ) + # If there are any problems allow the exception to raise rather than + # silently ignoring it. + method() + return True diff --git a/utils/python-venv/Lib/site-packages/_pytest/outcomes.py b/utils/python-venv/Lib/site-packages/_pytest/outcomes.py new file mode 100644 index 0000000..e46b663 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/outcomes.py @@ -0,0 +1,308 @@ +"""Exception classes and constants handling test outcomes as well as +functions creating them.""" +import sys +import warnings +from typing import Any +from typing import Callable +from typing import cast +from typing import NoReturn +from typing import Optional +from typing import Type +from typing import TypeVar + +from _pytest.deprecated import KEYWORD_MSG_ARG + +TYPE_CHECKING = False # Avoid circular import through compat. + +if TYPE_CHECKING: + from typing_extensions import Protocol +else: + # typing.Protocol is only available starting from Python 3.8. It is also + # available from typing_extensions, but we don't want a runtime dependency + # on that. So use a dummy runtime implementation. + from typing import Generic + + Protocol = Generic + + +class OutcomeException(BaseException): + """OutcomeException and its subclass instances indicate and contain info + about test and collection outcomes.""" + + def __init__(self, msg: Optional[str] = None, pytrace: bool = True) -> None: + if msg is not None and not isinstance(msg, str): + error_msg = ( # type: ignore[unreachable] + "{} expected string as 'msg' parameter, got '{}' instead.\n" + "Perhaps you meant to use a mark?" + ) + raise TypeError(error_msg.format(type(self).__name__, type(msg).__name__)) + super().__init__(msg) + self.msg = msg + self.pytrace = pytrace + + def __repr__(self) -> str: + if self.msg is not None: + return self.msg + return f"<{self.__class__.__name__} instance>" + + __str__ = __repr__ + + +TEST_OUTCOME = (OutcomeException, Exception) + + +class Skipped(OutcomeException): + # XXX hackish: on 3k we fake to live in the builtins + # in order to have Skipped exception printing shorter/nicer + __module__ = "builtins" + + def __init__( + self, + msg: Optional[str] = None, + pytrace: bool = True, + allow_module_level: bool = False, + *, + _use_item_location: bool = False, + ) -> None: + super().__init__(msg=msg, pytrace=pytrace) + self.allow_module_level = allow_module_level + # If true, the skip location is reported as the item's location, + # instead of the place that raises the exception/calls skip(). + self._use_item_location = _use_item_location + + +class Failed(OutcomeException): + """Raised from an explicit call to pytest.fail().""" + + __module__ = "builtins" + + +class Exit(Exception): + """Raised for immediate program exits (no tracebacks/summaries).""" + + def __init__( + self, msg: str = "unknown reason", returncode: Optional[int] = None + ) -> None: + self.msg = msg + self.returncode = returncode + super().__init__(msg) + + +# Elaborate hack to work around https://github.com/python/mypy/issues/2087. +# Ideally would just be `exit.Exception = Exit` etc. + +_F = TypeVar("_F", bound=Callable[..., object]) +_ET = TypeVar("_ET", bound=Type[BaseException]) + + +class _WithException(Protocol[_F, _ET]): + Exception: _ET + __call__: _F + + +def _with_exception(exception_type: _ET) -> Callable[[_F], _WithException[_F, _ET]]: + def decorate(func: _F) -> _WithException[_F, _ET]: + func_with_exception = cast(_WithException[_F, _ET], func) + func_with_exception.Exception = exception_type + return func_with_exception + + return decorate + + +# Exposed helper methods. + + +@_with_exception(Exit) +def exit( + reason: str = "", returncode: Optional[int] = None, *, msg: Optional[str] = None +) -> NoReturn: + """Exit testing process. + + :param reason: + The message to show as the reason for exiting pytest. reason has a default value + only because `msg` is deprecated. + + :param returncode: + Return code to be used when exiting pytest. + + :param msg: + Same as ``reason``, but deprecated. Will be removed in a future version, use ``reason`` instead. + """ + __tracebackhide__ = True + from _pytest.config import UsageError + + if reason and msg: + raise UsageError( + "cannot pass reason and msg to exit(), `msg` is deprecated, use `reason`." + ) + if not reason: + if msg is None: + raise UsageError("exit() requires a reason argument") + warnings.warn(KEYWORD_MSG_ARG.format(func="exit"), stacklevel=2) + reason = msg + raise Exit(reason, returncode) + + +@_with_exception(Skipped) +def skip( + reason: str = "", *, allow_module_level: bool = False, msg: Optional[str] = None +) -> NoReturn: + """Skip an executing test with the given message. + + This function should be called only during testing (setup, call or teardown) or + during collection by using the ``allow_module_level`` flag. This function can + be called in doctests as well. + + :param reason: + The message to show the user as reason for the skip. + + :param allow_module_level: + Allows this function to be called at module level, skipping the rest + of the module. Defaults to False. + + :param msg: + Same as ``reason``, but deprecated. Will be removed in a future version, use ``reason`` instead. + + .. note:: + It is better to use the :ref:`pytest.mark.skipif ref` marker when + possible to declare a test to be skipped under certain conditions + like mismatching platforms or dependencies. + Similarly, use the ``# doctest: +SKIP`` directive (see :py:data:`doctest.SKIP`) + to skip a doctest statically. + """ + __tracebackhide__ = True + reason = _resolve_msg_to_reason("skip", reason, msg) + raise Skipped(msg=reason, allow_module_level=allow_module_level) + + +@_with_exception(Failed) +def fail(reason: str = "", pytrace: bool = True, msg: Optional[str] = None) -> NoReturn: + """Explicitly fail an executing test with the given message. + + :param reason: + The message to show the user as reason for the failure. + + :param pytrace: + If False, msg represents the full failure information and no + python traceback will be reported. + + :param msg: + Same as ``reason``, but deprecated. Will be removed in a future version, use ``reason`` instead. + """ + __tracebackhide__ = True + reason = _resolve_msg_to_reason("fail", reason, msg) + raise Failed(msg=reason, pytrace=pytrace) + + +def _resolve_msg_to_reason( + func_name: str, reason: str, msg: Optional[str] = None +) -> str: + """ + Handles converting the deprecated msg parameter if provided into + reason, raising a deprecation warning. This function will be removed + when the optional msg argument is removed from here in future. + + :param str func_name: + The name of the offending function, this is formatted into the deprecation message. + + :param str reason: + The reason= passed into either pytest.fail() or pytest.skip() + + :param str msg: + The msg= passed into either pytest.fail() or pytest.skip(). This will + be converted into reason if it is provided to allow pytest.skip(msg=) or + pytest.fail(msg=) to continue working in the interim period. + + :returns: + The value to use as reason. + + """ + __tracebackhide__ = True + if msg is not None: + + if reason: + from pytest import UsageError + + raise UsageError( + f"Passing both ``reason`` and ``msg`` to pytest.{func_name}(...) is not permitted." + ) + warnings.warn(KEYWORD_MSG_ARG.format(func=func_name), stacklevel=3) + reason = msg + return reason + + +class XFailed(Failed): + """Raised from an explicit call to pytest.xfail().""" + + +@_with_exception(XFailed) +def xfail(reason: str = "") -> NoReturn: + """Imperatively xfail an executing test or setup function with the given reason. + + This function should be called only during testing (setup, call or teardown). + + :param reason: + The message to show the user as reason for the xfail. + + .. note:: + It is better to use the :ref:`pytest.mark.xfail ref` marker when + possible to declare a test to be xfailed under certain conditions + like known bugs or missing features. + """ + __tracebackhide__ = True + raise XFailed(reason) + + +def importorskip( + modname: str, minversion: Optional[str] = None, reason: Optional[str] = None +) -> Any: + """Import and return the requested module ``modname``, or skip the + current test if the module cannot be imported. + + :param modname: + The name of the module to import. + :param minversion: + If given, the imported module's ``__version__`` attribute must be at + least this minimal version, otherwise the test is still skipped. + :param reason: + If given, this reason is shown as the message when the module cannot + be imported. + + :returns: + The imported module. This should be assigned to its canonical name. + + Example:: + + docutils = pytest.importorskip("docutils") + """ + import warnings + + __tracebackhide__ = True + compile(modname, "", "eval") # to catch syntaxerrors + + with warnings.catch_warnings(): + # Make sure to ignore ImportWarnings that might happen because + # of existing directories with the same name we're trying to + # import but without a __init__.py file. + warnings.simplefilter("ignore") + try: + __import__(modname) + except ImportError as exc: + if reason is None: + reason = f"could not import {modname!r}: {exc}" + raise Skipped(reason, allow_module_level=True) from None + mod = sys.modules[modname] + if minversion is None: + return mod + verattr = getattr(mod, "__version__", None) + if minversion is not None: + # Imported lazily to improve start-up time. + from packaging.version import Version + + if verattr is None or Version(verattr) < Version(minversion): + raise Skipped( + "module %r has __version__ %r, required is: %r" + % (modname, verattr, minversion), + allow_module_level=True, + ) + return mod diff --git a/utils/python-venv/Lib/site-packages/_pytest/pastebin.py b/utils/python-venv/Lib/site-packages/_pytest/pastebin.py new file mode 100644 index 0000000..22c7a62 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/pastebin.py @@ -0,0 +1,110 @@ +"""Submit failure or test session information to a pastebin service.""" +import tempfile +from io import StringIO +from typing import IO +from typing import Union + +import pytest +from _pytest.config import Config +from _pytest.config import create_terminal_writer +from _pytest.config.argparsing import Parser +from _pytest.stash import StashKey +from _pytest.terminal import TerminalReporter + + +pastebinfile_key = StashKey[IO[bytes]]() + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("terminal reporting") + group._addoption( + "--pastebin", + metavar="mode", + action="store", + dest="pastebin", + default=None, + choices=["failed", "all"], + help="Send failed|all info to bpaste.net pastebin service", + ) + + +@pytest.hookimpl(trylast=True) +def pytest_configure(config: Config) -> None: + if config.option.pastebin == "all": + tr = config.pluginmanager.getplugin("terminalreporter") + # If no terminal reporter plugin is present, nothing we can do here; + # this can happen when this function executes in a worker node + # when using pytest-xdist, for example. + if tr is not None: + # pastebin file will be UTF-8 encoded binary file. + config.stash[pastebinfile_key] = tempfile.TemporaryFile("w+b") + oldwrite = tr._tw.write + + def tee_write(s, **kwargs): + oldwrite(s, **kwargs) + if isinstance(s, str): + s = s.encode("utf-8") + config.stash[pastebinfile_key].write(s) + + tr._tw.write = tee_write + + +def pytest_unconfigure(config: Config) -> None: + if pastebinfile_key in config.stash: + pastebinfile = config.stash[pastebinfile_key] + # Get terminal contents and delete file. + pastebinfile.seek(0) + sessionlog = pastebinfile.read() + pastebinfile.close() + del config.stash[pastebinfile_key] + # Undo our patching in the terminal reporter. + tr = config.pluginmanager.getplugin("terminalreporter") + del tr._tw.__dict__["write"] + # Write summary. + tr.write_sep("=", "Sending information to Paste Service") + pastebinurl = create_new_paste(sessionlog) + tr.write_line("pastebin session-log: %s\n" % pastebinurl) + + +def create_new_paste(contents: Union[str, bytes]) -> str: + """Create a new paste using the bpaste.net service. + + :contents: Paste contents string. + :returns: URL to the pasted contents, or an error message. + """ + import re + from urllib.request import urlopen + from urllib.parse import urlencode + + params = {"code": contents, "lexer": "text", "expiry": "1week"} + url = "https://bpa.st" + try: + response: str = ( + urlopen(url, data=urlencode(params).encode("ascii")).read().decode("utf-8") + ) + except OSError as exc_info: # urllib errors + return "bad response: %s" % exc_info + m = re.search(r'href="/raw/(\w+)"', response) + if m: + return f"{url}/show/{m.group(1)}" + else: + return "bad response: invalid format ('" + response + "')" + + +def pytest_terminal_summary(terminalreporter: TerminalReporter) -> None: + if terminalreporter.config.option.pastebin != "failed": + return + if "failed" in terminalreporter.stats: + terminalreporter.write_sep("=", "Sending information to Paste Service") + for rep in terminalreporter.stats["failed"]: + try: + msg = rep.longrepr.reprtraceback.reprentries[-1].reprfileloc + except AttributeError: + msg = terminalreporter._getfailureheadline(rep) + file = StringIO() + tw = create_terminal_writer(terminalreporter.config, file) + rep.toterminal(tw) + s = file.getvalue() + assert len(s) + pastebinurl = create_new_paste(s) + terminalreporter.write_line(f"{msg} --> {pastebinurl}") diff --git a/utils/python-venv/Lib/site-packages/_pytest/pathlib.py b/utils/python-venv/Lib/site-packages/_pytest/pathlib.py new file mode 100644 index 0000000..c5a411b --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/pathlib.py @@ -0,0 +1,735 @@ +import atexit +import contextlib +import fnmatch +import importlib.util +import itertools +import os +import shutil +import sys +import uuid +import warnings +from enum import Enum +from errno import EBADF +from errno import ELOOP +from errno import ENOENT +from errno import ENOTDIR +from functools import partial +from os.path import expanduser +from os.path import expandvars +from os.path import isabs +from os.path import sep +from pathlib import Path +from pathlib import PurePath +from posixpath import sep as posix_sep +from types import ModuleType +from typing import Callable +from typing import Dict +from typing import Iterable +from typing import Iterator +from typing import Optional +from typing import Set +from typing import TypeVar +from typing import Union + +from _pytest.compat import assert_never +from _pytest.outcomes import skip +from _pytest.warning_types import PytestWarning + +LOCK_TIMEOUT = 60 * 60 * 24 * 3 + + +_AnyPurePath = TypeVar("_AnyPurePath", bound=PurePath) + +# The following function, variables and comments were +# copied from cpython 3.9 Lib/pathlib.py file. + +# EBADF - guard against macOS `stat` throwing EBADF +_IGNORED_ERRORS = (ENOENT, ENOTDIR, EBADF, ELOOP) + +_IGNORED_WINERRORS = ( + 21, # ERROR_NOT_READY - drive exists but is not accessible + 1921, # ERROR_CANT_RESOLVE_FILENAME - fix for broken symlink pointing to itself +) + + +def _ignore_error(exception): + return ( + getattr(exception, "errno", None) in _IGNORED_ERRORS + or getattr(exception, "winerror", None) in _IGNORED_WINERRORS + ) + + +def get_lock_path(path: _AnyPurePath) -> _AnyPurePath: + return path.joinpath(".lock") + + +def on_rm_rf_error(func, path: str, exc, *, start_path: Path) -> bool: + """Handle known read-only errors during rmtree. + + The returned value is used only by our own tests. + """ + exctype, excvalue = exc[:2] + + # Another process removed the file in the middle of the "rm_rf" (xdist for example). + # More context: https://github.com/pytest-dev/pytest/issues/5974#issuecomment-543799018 + if isinstance(excvalue, FileNotFoundError): + return False + + if not isinstance(excvalue, PermissionError): + warnings.warn( + PytestWarning(f"(rm_rf) error removing {path}\n{exctype}: {excvalue}") + ) + return False + + if func not in (os.rmdir, os.remove, os.unlink): + if func not in (os.open,): + warnings.warn( + PytestWarning( + "(rm_rf) unknown function {} when removing {}:\n{}: {}".format( + func, path, exctype, excvalue + ) + ) + ) + return False + + # Chmod + retry. + import stat + + def chmod_rw(p: str) -> None: + mode = os.stat(p).st_mode + os.chmod(p, mode | stat.S_IRUSR | stat.S_IWUSR) + + # For files, we need to recursively go upwards in the directories to + # ensure they all are also writable. + p = Path(path) + if p.is_file(): + for parent in p.parents: + chmod_rw(str(parent)) + # Stop when we reach the original path passed to rm_rf. + if parent == start_path: + break + chmod_rw(str(path)) + + func(path) + return True + + +def ensure_extended_length_path(path: Path) -> Path: + """Get the extended-length version of a path (Windows). + + On Windows, by default, the maximum length of a path (MAX_PATH) is 260 + characters, and operations on paths longer than that fail. But it is possible + to overcome this by converting the path to "extended-length" form before + performing the operation: + https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#maximum-path-length-limitation + + On Windows, this function returns the extended-length absolute version of path. + On other platforms it returns path unchanged. + """ + if sys.platform.startswith("win32"): + path = path.resolve() + path = Path(get_extended_length_path_str(str(path))) + return path + + +def get_extended_length_path_str(path: str) -> str: + """Convert a path to a Windows extended length path.""" + long_path_prefix = "\\\\?\\" + unc_long_path_prefix = "\\\\?\\UNC\\" + if path.startswith((long_path_prefix, unc_long_path_prefix)): + return path + # UNC + if path.startswith("\\\\"): + return unc_long_path_prefix + path[2:] + return long_path_prefix + path + + +def rm_rf(path: Path) -> None: + """Remove the path contents recursively, even if some elements + are read-only.""" + path = ensure_extended_length_path(path) + onerror = partial(on_rm_rf_error, start_path=path) + shutil.rmtree(str(path), onerror=onerror) + + +def find_prefixed(root: Path, prefix: str) -> Iterator[Path]: + """Find all elements in root that begin with the prefix, case insensitive.""" + l_prefix = prefix.lower() + for x in root.iterdir(): + if x.name.lower().startswith(l_prefix): + yield x + + +def extract_suffixes(iter: Iterable[PurePath], prefix: str) -> Iterator[str]: + """Return the parts of the paths following the prefix. + + :param iter: Iterator over path names. + :param prefix: Expected prefix of the path names. + """ + p_len = len(prefix) + for p in iter: + yield p.name[p_len:] + + +def find_suffixes(root: Path, prefix: str) -> Iterator[str]: + """Combine find_prefixes and extract_suffixes.""" + return extract_suffixes(find_prefixed(root, prefix), prefix) + + +def parse_num(maybe_num) -> int: + """Parse number path suffixes, returns -1 on error.""" + try: + return int(maybe_num) + except ValueError: + return -1 + + +def _force_symlink( + root: Path, target: Union[str, PurePath], link_to: Union[str, Path] +) -> None: + """Helper to create the current symlink. + + It's full of race conditions that are reasonably OK to ignore + for the context of best effort linking to the latest test run. + + The presumption being that in case of much parallelism + the inaccuracy is going to be acceptable. + """ + current_symlink = root.joinpath(target) + try: + current_symlink.unlink() + except OSError: + pass + try: + current_symlink.symlink_to(link_to) + except Exception: + pass + + +def make_numbered_dir(root: Path, prefix: str, mode: int = 0o700) -> Path: + """Create a directory with an increased number as suffix for the given prefix.""" + for i in range(10): + # try up to 10 times to create the folder + max_existing = max(map(parse_num, find_suffixes(root, prefix)), default=-1) + new_number = max_existing + 1 + new_path = root.joinpath(f"{prefix}{new_number}") + try: + new_path.mkdir(mode=mode) + except Exception: + pass + else: + _force_symlink(root, prefix + "current", new_path) + return new_path + else: + raise OSError( + "could not create numbered dir with prefix " + "{prefix} in {root} after 10 tries".format(prefix=prefix, root=root) + ) + + +def create_cleanup_lock(p: Path) -> Path: + """Create a lock to prevent premature folder cleanup.""" + lock_path = get_lock_path(p) + try: + fd = os.open(str(lock_path), os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o644) + except FileExistsError as e: + raise OSError(f"cannot create lockfile in {p}") from e + else: + pid = os.getpid() + spid = str(pid).encode() + os.write(fd, spid) + os.close(fd) + if not lock_path.is_file(): + raise OSError("lock path got renamed after successful creation") + return lock_path + + +def register_cleanup_lock_removal(lock_path: Path, register=atexit.register): + """Register a cleanup function for removing a lock, by default on atexit.""" + pid = os.getpid() + + def cleanup_on_exit(lock_path: Path = lock_path, original_pid: int = pid) -> None: + current_pid = os.getpid() + if current_pid != original_pid: + # fork + return + try: + lock_path.unlink() + except OSError: + pass + + return register(cleanup_on_exit) + + +def maybe_delete_a_numbered_dir(path: Path) -> None: + """Remove a numbered directory if its lock can be obtained and it does + not seem to be in use.""" + path = ensure_extended_length_path(path) + lock_path = None + try: + lock_path = create_cleanup_lock(path) + parent = path.parent + + garbage = parent.joinpath(f"garbage-{uuid.uuid4()}") + path.rename(garbage) + rm_rf(garbage) + except OSError: + # known races: + # * other process did a cleanup at the same time + # * deletable folder was found + # * process cwd (Windows) + return + finally: + # If we created the lock, ensure we remove it even if we failed + # to properly remove the numbered dir. + if lock_path is not None: + try: + lock_path.unlink() + except OSError: + pass + + +def ensure_deletable(path: Path, consider_lock_dead_if_created_before: float) -> bool: + """Check if `path` is deletable based on whether the lock file is expired.""" + if path.is_symlink(): + return False + lock = get_lock_path(path) + try: + if not lock.is_file(): + return True + except OSError: + # we might not have access to the lock file at all, in this case assume + # we don't have access to the entire directory (#7491). + return False + try: + lock_time = lock.stat().st_mtime + except Exception: + return False + else: + if lock_time < consider_lock_dead_if_created_before: + # We want to ignore any errors while trying to remove the lock such as: + # - PermissionDenied, like the file permissions have changed since the lock creation; + # - FileNotFoundError, in case another pytest process got here first; + # and any other cause of failure. + with contextlib.suppress(OSError): + lock.unlink() + return True + return False + + +def try_cleanup(path: Path, consider_lock_dead_if_created_before: float) -> None: + """Try to cleanup a folder if we can ensure it's deletable.""" + if ensure_deletable(path, consider_lock_dead_if_created_before): + maybe_delete_a_numbered_dir(path) + + +def cleanup_candidates(root: Path, prefix: str, keep: int) -> Iterator[Path]: + """List candidates for numbered directories to be removed - follows py.path.""" + max_existing = max(map(parse_num, find_suffixes(root, prefix)), default=-1) + max_delete = max_existing - keep + paths = find_prefixed(root, prefix) + paths, paths2 = itertools.tee(paths) + numbers = map(parse_num, extract_suffixes(paths2, prefix)) + for path, number in zip(paths, numbers): + if number <= max_delete: + yield path + + +def cleanup_numbered_dir( + root: Path, prefix: str, keep: int, consider_lock_dead_if_created_before: float +) -> None: + """Cleanup for lock driven numbered directories.""" + for path in cleanup_candidates(root, prefix, keep): + try_cleanup(path, consider_lock_dead_if_created_before) + for path in root.glob("garbage-*"): + try_cleanup(path, consider_lock_dead_if_created_before) + + +def make_numbered_dir_with_cleanup( + root: Path, + prefix: str, + keep: int, + lock_timeout: float, + mode: int, +) -> Path: + """Create a numbered dir with a cleanup lock and remove old ones.""" + e = None + for i in range(10): + try: + p = make_numbered_dir(root, prefix, mode) + lock_path = create_cleanup_lock(p) + register_cleanup_lock_removal(lock_path) + except Exception as exc: + e = exc + else: + consider_lock_dead_if_created_before = p.stat().st_mtime - lock_timeout + # Register a cleanup for program exit + atexit.register( + cleanup_numbered_dir, + root, + prefix, + keep, + consider_lock_dead_if_created_before, + ) + return p + assert e is not None + raise e + + +def resolve_from_str(input: str, rootpath: Path) -> Path: + input = expanduser(input) + input = expandvars(input) + if isabs(input): + return Path(input) + else: + return rootpath.joinpath(input) + + +def fnmatch_ex(pattern: str, path: Union[str, "os.PathLike[str]"]) -> bool: + """A port of FNMatcher from py.path.common which works with PurePath() instances. + + The difference between this algorithm and PurePath.match() is that the + latter matches "**" glob expressions for each part of the path, while + this algorithm uses the whole path instead. + + For example: + "tests/foo/bar/doc/test_foo.py" matches pattern "tests/**/doc/test*.py" + with this algorithm, but not with PurePath.match(). + + This algorithm was ported to keep backward-compatibility with existing + settings which assume paths match according this logic. + + References: + * https://bugs.python.org/issue29249 + * https://bugs.python.org/issue34731 + """ + path = PurePath(path) + iswin32 = sys.platform.startswith("win") + + if iswin32 and sep not in pattern and posix_sep in pattern: + # Running on Windows, the pattern has no Windows path separators, + # and the pattern has one or more Posix path separators. Replace + # the Posix path separators with the Windows path separator. + pattern = pattern.replace(posix_sep, sep) + + if sep not in pattern: + name = path.name + else: + name = str(path) + if path.is_absolute() and not os.path.isabs(pattern): + pattern = f"*{os.sep}{pattern}" + return fnmatch.fnmatch(name, pattern) + + +def parts(s: str) -> Set[str]: + parts = s.split(sep) + return {sep.join(parts[: i + 1]) or sep for i in range(len(parts))} + + +def symlink_or_skip(src, dst, **kwargs): + """Make a symlink, or skip the test in case symlinks are not supported.""" + try: + os.symlink(str(src), str(dst), **kwargs) + except OSError as e: + skip(f"symlinks not supported: {e}") + + +class ImportMode(Enum): + """Possible values for `mode` parameter of `import_path`.""" + + prepend = "prepend" + append = "append" + importlib = "importlib" + + +class ImportPathMismatchError(ImportError): + """Raised on import_path() if there is a mismatch of __file__'s. + + This can happen when `import_path` is called multiple times with different filenames that has + the same basename but reside in packages + (for example "/tests1/test_foo.py" and "/tests2/test_foo.py"). + """ + + +def import_path( + p: Union[str, "os.PathLike[str]"], + *, + mode: Union[str, ImportMode] = ImportMode.prepend, + root: Path, +) -> ModuleType: + """Import and return a module from the given path, which can be a file (a module) or + a directory (a package). + + The import mechanism used is controlled by the `mode` parameter: + + * `mode == ImportMode.prepend`: the directory containing the module (or package, taking + `__init__.py` files into account) will be put at the *start* of `sys.path` before + being imported with `__import__. + + * `mode == ImportMode.append`: same as `prepend`, but the directory will be appended + to the end of `sys.path`, if not already in `sys.path`. + + * `mode == ImportMode.importlib`: uses more fine control mechanisms provided by `importlib` + to import the module, which avoids having to use `__import__` and muck with `sys.path` + at all. It effectively allows having same-named test modules in different places. + + :param root: + Used as an anchor when mode == ImportMode.importlib to obtain + a unique name for the module being imported so it can safely be stored + into ``sys.modules``. + + :raises ImportPathMismatchError: + If after importing the given `path` and the module `__file__` + are different. Only raised in `prepend` and `append` modes. + """ + mode = ImportMode(mode) + + path = Path(p) + + if not path.exists(): + raise ImportError(path) + + if mode is ImportMode.importlib: + module_name = module_name_from_path(path, root) + + for meta_importer in sys.meta_path: + spec = meta_importer.find_spec(module_name, [str(path.parent)]) + if spec is not None: + break + else: + spec = importlib.util.spec_from_file_location(module_name, str(path)) + + if spec is None: + raise ImportError(f"Can't find module {module_name} at location {path}") + mod = importlib.util.module_from_spec(spec) + sys.modules[module_name] = mod + spec.loader.exec_module(mod) # type: ignore[union-attr] + insert_missing_modules(sys.modules, module_name) + return mod + + pkg_path = resolve_package_path(path) + if pkg_path is not None: + pkg_root = pkg_path.parent + names = list(path.with_suffix("").relative_to(pkg_root).parts) + if names[-1] == "__init__": + names.pop() + module_name = ".".join(names) + else: + pkg_root = path.parent + module_name = path.stem + + # Change sys.path permanently: restoring it at the end of this function would cause surprising + # problems because of delayed imports: for example, a conftest.py file imported by this function + # might have local imports, which would fail at runtime if we restored sys.path. + if mode is ImportMode.append: + if str(pkg_root) not in sys.path: + sys.path.append(str(pkg_root)) + elif mode is ImportMode.prepend: + if str(pkg_root) != sys.path[0]: + sys.path.insert(0, str(pkg_root)) + else: + assert_never(mode) + + importlib.import_module(module_name) + + mod = sys.modules[module_name] + if path.name == "__init__.py": + return mod + + ignore = os.environ.get("PY_IGNORE_IMPORTMISMATCH", "") + if ignore != "1": + module_file = mod.__file__ + if module_file is None: + raise ImportPathMismatchError(module_name, module_file, path) + + if module_file.endswith((".pyc", ".pyo")): + module_file = module_file[:-1] + if module_file.endswith(os.path.sep + "__init__.py"): + module_file = module_file[: -(len(os.path.sep + "__init__.py"))] + + try: + is_same = _is_same(str(path), module_file) + except FileNotFoundError: + is_same = False + + if not is_same: + raise ImportPathMismatchError(module_name, module_file, path) + + return mod + + +# Implement a special _is_same function on Windows which returns True if the two filenames +# compare equal, to circumvent os.path.samefile returning False for mounts in UNC (#7678). +if sys.platform.startswith("win"): + + def _is_same(f1: str, f2: str) -> bool: + return Path(f1) == Path(f2) or os.path.samefile(f1, f2) + +else: + + def _is_same(f1: str, f2: str) -> bool: + return os.path.samefile(f1, f2) + + +def module_name_from_path(path: Path, root: Path) -> str: + """ + Return a dotted module name based on the given path, anchored on root. + + For example: path="projects/src/tests/test_foo.py" and root="/projects", the + resulting module name will be "src.tests.test_foo". + """ + path = path.with_suffix("") + try: + relative_path = path.relative_to(root) + except ValueError: + # If we can't get a relative path to root, use the full path, except + # for the first part ("d:\\" or "/" depending on the platform, for example). + path_parts = path.parts[1:] + else: + # Use the parts for the relative path to the root path. + path_parts = relative_path.parts + + return ".".join(path_parts) + + +def insert_missing_modules(modules: Dict[str, ModuleType], module_name: str) -> None: + """ + Used by ``import_path`` to create intermediate modules when using mode=importlib. + + When we want to import a module as "src.tests.test_foo" for example, we need + to create empty modules "src" and "src.tests" after inserting "src.tests.test_foo", + otherwise "src.tests.test_foo" is not importable by ``__import__``. + """ + module_parts = module_name.split(".") + while module_name: + if module_name not in modules: + try: + # If sys.meta_path is empty, calling import_module will issue + # a warning and raise ModuleNotFoundError. To avoid the + # warning, we check sys.meta_path explicitly and raise the error + # ourselves to fall back to creating a dummy module. + if not sys.meta_path: + raise ModuleNotFoundError + importlib.import_module(module_name) + except ModuleNotFoundError: + module = ModuleType( + module_name, + doc="Empty module created by pytest's importmode=importlib.", + ) + modules[module_name] = module + module_parts.pop(-1) + module_name = ".".join(module_parts) + + +def resolve_package_path(path: Path) -> Optional[Path]: + """Return the Python package path by looking for the last + directory upwards which still contains an __init__.py. + + Returns None if it can not be determined. + """ + result = None + for parent in itertools.chain((path,), path.parents): + if parent.is_dir(): + if not parent.joinpath("__init__.py").is_file(): + break + if not parent.name.isidentifier(): + break + result = parent + return result + + +def visit( + path: Union[str, "os.PathLike[str]"], recurse: Callable[["os.DirEntry[str]"], bool] +) -> Iterator["os.DirEntry[str]"]: + """Walk a directory recursively, in breadth-first order. + + Entries at each directory level are sorted. + """ + + # Skip entries with symlink loops and other brokenness, so the caller doesn't + # have to deal with it. + entries = [] + for entry in os.scandir(path): + try: + entry.is_file() + except OSError as err: + if _ignore_error(err): + continue + raise + entries.append(entry) + + entries.sort(key=lambda entry: entry.name) + + yield from entries + + for entry in entries: + if entry.is_dir() and recurse(entry): + yield from visit(entry.path, recurse) + + +def absolutepath(path: Union[Path, str]) -> Path: + """Convert a path to an absolute path using os.path.abspath. + + Prefer this over Path.resolve() (see #6523). + Prefer this over Path.absolute() (not public, doesn't normalize). + """ + return Path(os.path.abspath(str(path))) + + +def commonpath(path1: Path, path2: Path) -> Optional[Path]: + """Return the common part shared with the other path, or None if there is + no common part. + + If one path is relative and one is absolute, returns None. + """ + try: + return Path(os.path.commonpath((str(path1), str(path2)))) + except ValueError: + return None + + +def bestrelpath(directory: Path, dest: Path) -> str: + """Return a string which is a relative path from directory to dest such + that directory/bestrelpath == dest. + + The paths must be either both absolute or both relative. + + If no such path can be determined, returns dest. + """ + assert isinstance(directory, Path) + assert isinstance(dest, Path) + if dest == directory: + return os.curdir + # Find the longest common directory. + base = commonpath(directory, dest) + # Can be the case on Windows for two absolute paths on different drives. + # Can be the case for two relative paths without common prefix. + # Can be the case for a relative path and an absolute path. + if not base: + return str(dest) + reldirectory = directory.relative_to(base) + reldest = dest.relative_to(base) + return os.path.join( + # Back from directory to base. + *([os.pardir] * len(reldirectory.parts)), + # Forward from base to dest. + *reldest.parts, + ) + + +# Originates from py. path.local.copy(), with siginficant trims and adjustments. +# TODO(py38): Replace with shutil.copytree(..., symlinks=True, dirs_exist_ok=True) +def copytree(source: Path, target: Path) -> None: + """Recursively copy a source directory to target.""" + assert source.is_dir() + for entry in visit(source, recurse=lambda entry: not entry.is_symlink()): + x = Path(entry) + relpath = x.relative_to(source) + newx = target / relpath + newx.parent.mkdir(exist_ok=True) + if x.is_symlink(): + newx.symlink_to(os.readlink(x)) + elif x.is_file(): + shutil.copyfile(x, newx) + elif x.is_dir(): + newx.mkdir(exist_ok=True) diff --git a/utils/python-venv/Lib/site-packages/_pytest/py.typed b/utils/python-venv/Lib/site-packages/_pytest/py.typed new file mode 100644 index 0000000..e69de29 diff --git a/utils/python-venv/Lib/site-packages/_pytest/pytester.py b/utils/python-venv/Lib/site-packages/_pytest/pytester.py new file mode 100644 index 0000000..a929994 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/pytester.py @@ -0,0 +1,1787 @@ +"""(Disabled by default) support for testing pytest and pytest plugins. + +PYTEST_DONT_REWRITE +""" +import collections.abc +import contextlib +import gc +import importlib +import os +import platform +import re +import shutil +import subprocess +import sys +import traceback +from fnmatch import fnmatch +from io import StringIO +from pathlib import Path +from typing import Any +from typing import Callable +from typing import Dict +from typing import Generator +from typing import IO +from typing import Iterable +from typing import List +from typing import Optional +from typing import overload +from typing import Sequence +from typing import TextIO +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import Union +from weakref import WeakKeyDictionary + +from iniconfig import IniConfig +from iniconfig import SectionWrapper + +from _pytest import timing +from _pytest._code import Source +from _pytest.capture import _get_multicapture +from _pytest.compat import final +from _pytest.compat import NOTSET +from _pytest.compat import NotSetType +from _pytest.config import _PluggyPlugin +from _pytest.config import Config +from _pytest.config import ExitCode +from _pytest.config import hookimpl +from _pytest.config import main +from _pytest.config import PytestPluginManager +from _pytest.config.argparsing import Parser +from _pytest.deprecated import check_ispytest +from _pytest.fixtures import fixture +from _pytest.fixtures import FixtureRequest +from _pytest.main import Session +from _pytest.monkeypatch import MonkeyPatch +from _pytest.nodes import Collector +from _pytest.nodes import Item +from _pytest.outcomes import fail +from _pytest.outcomes import importorskip +from _pytest.outcomes import skip +from _pytest.pathlib import bestrelpath +from _pytest.pathlib import copytree +from _pytest.pathlib import make_numbered_dir +from _pytest.reports import CollectReport +from _pytest.reports import TestReport +from _pytest.tmpdir import TempPathFactory +from _pytest.warning_types import PytestWarning + + +if TYPE_CHECKING: + from typing_extensions import Final + from typing_extensions import Literal + + import pexpect + + +pytest_plugins = ["pytester_assertions"] + + +IGNORE_PAM = [ # filenames added when obtaining details about the current user + "/var/lib/sss/mc/passwd" +] + + +def pytest_addoption(parser: Parser) -> None: + parser.addoption( + "--lsof", + action="store_true", + dest="lsof", + default=False, + help="Run FD checks if lsof is available", + ) + + parser.addoption( + "--runpytest", + default="inprocess", + dest="runpytest", + choices=("inprocess", "subprocess"), + help=( + "Run pytest sub runs in tests using an 'inprocess' " + "or 'subprocess' (python -m main) method" + ), + ) + + parser.addini( + "pytester_example_dir", help="Directory to take the pytester example files from" + ) + + +def pytest_configure(config: Config) -> None: + if config.getvalue("lsof"): + checker = LsofFdLeakChecker() + if checker.matching_platform(): + config.pluginmanager.register(checker) + + config.addinivalue_line( + "markers", + "pytester_example_path(*path_segments): join the given path " + "segments to `pytester_example_dir` for this test.", + ) + + +class LsofFdLeakChecker: + def get_open_files(self) -> List[Tuple[str, str]]: + out = subprocess.run( + ("lsof", "-Ffn0", "-p", str(os.getpid())), + stdout=subprocess.PIPE, + stderr=subprocess.DEVNULL, + check=True, + text=True, + ).stdout + + def isopen(line: str) -> bool: + return line.startswith("f") and ( + "deleted" not in line + and "mem" not in line + and "txt" not in line + and "cwd" not in line + ) + + open_files = [] + + for line in out.split("\n"): + if isopen(line): + fields = line.split("\0") + fd = fields[0][1:] + filename = fields[1][1:] + if filename in IGNORE_PAM: + continue + if filename.startswith("/"): + open_files.append((fd, filename)) + + return open_files + + def matching_platform(self) -> bool: + try: + subprocess.run(("lsof", "-v"), check=True) + except (OSError, subprocess.CalledProcessError): + return False + else: + return True + + @hookimpl(hookwrapper=True, tryfirst=True) + def pytest_runtest_protocol(self, item: Item) -> Generator[None, None, None]: + lines1 = self.get_open_files() + yield + if hasattr(sys, "pypy_version_info"): + gc.collect() + lines2 = self.get_open_files() + + new_fds = {t[0] for t in lines2} - {t[0] for t in lines1} + leaked_files = [t for t in lines2 if t[0] in new_fds] + if leaked_files: + error = [ + "***** %s FD leakage detected" % len(leaked_files), + *(str(f) for f in leaked_files), + "*** Before:", + *(str(f) for f in lines1), + "*** After:", + *(str(f) for f in lines2), + "***** %s FD leakage detected" % len(leaked_files), + "*** function %s:%s: %s " % item.location, + "See issue #2366", + ] + item.warn(PytestWarning("\n".join(error))) + + +# used at least by pytest-xdist plugin + + +@fixture +def _pytest(request: FixtureRequest) -> "PytestArg": + """Return a helper which offers a gethookrecorder(hook) method which + returns a HookRecorder instance which helps to make assertions about called + hooks.""" + return PytestArg(request) + + +class PytestArg: + def __init__(self, request: FixtureRequest) -> None: + self._request = request + + def gethookrecorder(self, hook) -> "HookRecorder": + hookrecorder = HookRecorder(hook._pm) + self._request.addfinalizer(hookrecorder.finish_recording) + return hookrecorder + + +def get_public_names(values: Iterable[str]) -> List[str]: + """Only return names from iterator values without a leading underscore.""" + return [x for x in values if x[0] != "_"] + + +@final +class RecordedHookCall: + """A recorded call to a hook. + + The arguments to the hook call are set as attributes. + For example: + + .. code-block:: python + + calls = hook_recorder.getcalls("pytest_runtest_setup") + # Suppose pytest_runtest_setup was called once with `item=an_item`. + assert calls[0].item is an_item + """ + + def __init__(self, name: str, kwargs) -> None: + self.__dict__.update(kwargs) + self._name = name + + def __repr__(self) -> str: + d = self.__dict__.copy() + del d["_name"] + return f"" + + if TYPE_CHECKING: + # The class has undetermined attributes, this tells mypy about it. + def __getattr__(self, key: str): + ... + + +@final +class HookRecorder: + """Record all hooks called in a plugin manager. + + Hook recorders are created by :class:`Pytester`. + + This wraps all the hook calls in the plugin manager, recording each call + before propagating the normal calls. + """ + + def __init__( + self, pluginmanager: PytestPluginManager, *, _ispytest: bool = False + ) -> None: + check_ispytest(_ispytest) + + self._pluginmanager = pluginmanager + self.calls: List[RecordedHookCall] = [] + self.ret: Optional[Union[int, ExitCode]] = None + + def before(hook_name: str, hook_impls, kwargs) -> None: + self.calls.append(RecordedHookCall(hook_name, kwargs)) + + def after(outcome, hook_name: str, hook_impls, kwargs) -> None: + pass + + self._undo_wrapping = pluginmanager.add_hookcall_monitoring(before, after) + + def finish_recording(self) -> None: + self._undo_wrapping() + + def getcalls(self, names: Union[str, Iterable[str]]) -> List[RecordedHookCall]: + """Get all recorded calls to hooks with the given names (or name).""" + if isinstance(names, str): + names = names.split() + return [call for call in self.calls if call._name in names] + + def assert_contains(self, entries: Sequence[Tuple[str, str]]) -> None: + __tracebackhide__ = True + i = 0 + entries = list(entries) + backlocals = sys._getframe(1).f_locals + while entries: + name, check = entries.pop(0) + for ind, call in enumerate(self.calls[i:]): + if call._name == name: + print("NAMEMATCH", name, call) + if eval(check, backlocals, call.__dict__): + print("CHECKERMATCH", repr(check), "->", call) + else: + print("NOCHECKERMATCH", repr(check), "-", call) + continue + i += ind + 1 + break + print("NONAMEMATCH", name, "with", call) + else: + fail(f"could not find {name!r} check {check!r}") + + def popcall(self, name: str) -> RecordedHookCall: + __tracebackhide__ = True + for i, call in enumerate(self.calls): + if call._name == name: + del self.calls[i] + return call + lines = [f"could not find call {name!r}, in:"] + lines.extend([" %s" % x for x in self.calls]) + fail("\n".join(lines)) + + def getcall(self, name: str) -> RecordedHookCall: + values = self.getcalls(name) + assert len(values) == 1, (name, values) + return values[0] + + # functionality for test reports + + @overload + def getreports( + self, + names: "Literal['pytest_collectreport']", + ) -> Sequence[CollectReport]: + ... + + @overload + def getreports( + self, + names: "Literal['pytest_runtest_logreport']", + ) -> Sequence[TestReport]: + ... + + @overload + def getreports( + self, + names: Union[str, Iterable[str]] = ( + "pytest_collectreport", + "pytest_runtest_logreport", + ), + ) -> Sequence[Union[CollectReport, TestReport]]: + ... + + def getreports( + self, + names: Union[str, Iterable[str]] = ( + "pytest_collectreport", + "pytest_runtest_logreport", + ), + ) -> Sequence[Union[CollectReport, TestReport]]: + return [x.report for x in self.getcalls(names)] + + def matchreport( + self, + inamepart: str = "", + names: Union[str, Iterable[str]] = ( + "pytest_runtest_logreport", + "pytest_collectreport", + ), + when: Optional[str] = None, + ) -> Union[CollectReport, TestReport]: + """Return a testreport whose dotted import path matches.""" + values = [] + for rep in self.getreports(names=names): + if not when and rep.when != "call" and rep.passed: + # setup/teardown passing reports - let's ignore those + continue + if when and rep.when != when: + continue + if not inamepart or inamepart in rep.nodeid.split("::"): + values.append(rep) + if not values: + raise ValueError( + "could not find test report matching %r: " + "no test reports at all!" % (inamepart,) + ) + if len(values) > 1: + raise ValueError( + "found 2 or more testreports matching {!r}: {}".format( + inamepart, values + ) + ) + return values[0] + + @overload + def getfailures( + self, + names: "Literal['pytest_collectreport']", + ) -> Sequence[CollectReport]: + ... + + @overload + def getfailures( + self, + names: "Literal['pytest_runtest_logreport']", + ) -> Sequence[TestReport]: + ... + + @overload + def getfailures( + self, + names: Union[str, Iterable[str]] = ( + "pytest_collectreport", + "pytest_runtest_logreport", + ), + ) -> Sequence[Union[CollectReport, TestReport]]: + ... + + def getfailures( + self, + names: Union[str, Iterable[str]] = ( + "pytest_collectreport", + "pytest_runtest_logreport", + ), + ) -> Sequence[Union[CollectReport, TestReport]]: + return [rep for rep in self.getreports(names) if rep.failed] + + def getfailedcollections(self) -> Sequence[CollectReport]: + return self.getfailures("pytest_collectreport") + + def listoutcomes( + self, + ) -> Tuple[ + Sequence[TestReport], + Sequence[Union[CollectReport, TestReport]], + Sequence[Union[CollectReport, TestReport]], + ]: + passed = [] + skipped = [] + failed = [] + for rep in self.getreports( + ("pytest_collectreport", "pytest_runtest_logreport") + ): + if rep.passed: + if rep.when == "call": + assert isinstance(rep, TestReport) + passed.append(rep) + elif rep.skipped: + skipped.append(rep) + else: + assert rep.failed, f"Unexpected outcome: {rep!r}" + failed.append(rep) + return passed, skipped, failed + + def countoutcomes(self) -> List[int]: + return [len(x) for x in self.listoutcomes()] + + def assertoutcome(self, passed: int = 0, skipped: int = 0, failed: int = 0) -> None: + __tracebackhide__ = True + from _pytest.pytester_assertions import assertoutcome + + outcomes = self.listoutcomes() + assertoutcome( + outcomes, + passed=passed, + skipped=skipped, + failed=failed, + ) + + def clear(self) -> None: + self.calls[:] = [] + + +@fixture +def linecomp() -> "LineComp": + """A :class: `LineComp` instance for checking that an input linearly + contains a sequence of strings.""" + return LineComp() + + +@fixture(name="LineMatcher") +def LineMatcher_fixture(request: FixtureRequest) -> Type["LineMatcher"]: + """A reference to the :class: `LineMatcher`. + + This is instantiable with a list of lines (without their trailing newlines). + This is useful for testing large texts, such as the output of commands. + """ + return LineMatcher + + +@fixture +def pytester( + request: FixtureRequest, tmp_path_factory: TempPathFactory, monkeypatch: MonkeyPatch +) -> "Pytester": + """ + Facilities to write tests/configuration files, execute pytest in isolation, and match + against expected output, perfect for black-box testing of pytest plugins. + + It attempts to isolate the test run from external factors as much as possible, modifying + the current working directory to ``path`` and environment variables during initialization. + + It is particularly useful for testing plugins. It is similar to the :fixture:`tmp_path` + fixture but provides methods which aid in testing pytest itself. + """ + return Pytester(request, tmp_path_factory, monkeypatch, _ispytest=True) + + +@fixture +def _sys_snapshot() -> Generator[None, None, None]: + snappaths = SysPathsSnapshot() + snapmods = SysModulesSnapshot() + yield + snapmods.restore() + snappaths.restore() + + +@fixture +def _config_for_test() -> Generator[Config, None, None]: + from _pytest.config import get_config + + config = get_config() + yield config + config._ensure_unconfigure() # cleanup, e.g. capman closing tmpfiles. + + +# Regex to match the session duration string in the summary: "74.34s". +rex_session_duration = re.compile(r"\d+\.\d\ds") +# Regex to match all the counts and phrases in the summary line: "34 passed, 111 skipped". +rex_outcome = re.compile(r"(\d+) (\w+)") + + +@final +class RunResult: + """The result of running a command from :class:`~pytest.Pytester`.""" + + def __init__( + self, + ret: Union[int, ExitCode], + outlines: List[str], + errlines: List[str], + duration: float, + ) -> None: + try: + self.ret: Union[int, ExitCode] = ExitCode(ret) + """The return value.""" + except ValueError: + self.ret = ret + self.outlines = outlines + """List of lines captured from stdout.""" + self.errlines = errlines + """List of lines captured from stderr.""" + self.stdout = LineMatcher(outlines) + """:class:`~pytest.LineMatcher` of stdout. + + Use e.g. :func:`str(stdout) ` to reconstruct stdout, or the commonly used + :func:`stdout.fnmatch_lines() ` method. + """ + self.stderr = LineMatcher(errlines) + """:class:`~pytest.LineMatcher` of stderr.""" + self.duration = duration + """Duration in seconds.""" + + def __repr__(self) -> str: + return ( + "" + % (self.ret, len(self.stdout.lines), len(self.stderr.lines), self.duration) + ) + + def parseoutcomes(self) -> Dict[str, int]: + """Return a dictionary of outcome noun -> count from parsing the terminal + output that the test process produced. + + The returned nouns will always be in plural form:: + + ======= 1 failed, 1 passed, 1 warning, 1 error in 0.13s ==== + + Will return ``{"failed": 1, "passed": 1, "warnings": 1, "errors": 1}``. + """ + return self.parse_summary_nouns(self.outlines) + + @classmethod + def parse_summary_nouns(cls, lines) -> Dict[str, int]: + """Extract the nouns from a pytest terminal summary line. + + It always returns the plural noun for consistency:: + + ======= 1 failed, 1 passed, 1 warning, 1 error in 0.13s ==== + + Will return ``{"failed": 1, "passed": 1, "warnings": 1, "errors": 1}``. + """ + for line in reversed(lines): + if rex_session_duration.search(line): + outcomes = rex_outcome.findall(line) + ret = {noun: int(count) for (count, noun) in outcomes} + break + else: + raise ValueError("Pytest terminal summary report not found") + + to_plural = { + "warning": "warnings", + "error": "errors", + } + return {to_plural.get(k, k): v for k, v in ret.items()} + + def assert_outcomes( + self, + passed: int = 0, + skipped: int = 0, + failed: int = 0, + errors: int = 0, + xpassed: int = 0, + xfailed: int = 0, + warnings: Optional[int] = None, + deselected: Optional[int] = None, + ) -> None: + """ + Assert that the specified outcomes appear with the respective + numbers (0 means it didn't occur) in the text output from a test run. + + ``warnings`` and ``deselected`` are only checked if not None. + """ + __tracebackhide__ = True + from _pytest.pytester_assertions import assert_outcomes + + outcomes = self.parseoutcomes() + assert_outcomes( + outcomes, + passed=passed, + skipped=skipped, + failed=failed, + errors=errors, + xpassed=xpassed, + xfailed=xfailed, + warnings=warnings, + deselected=deselected, + ) + + +class CwdSnapshot: + def __init__(self) -> None: + self.__saved = os.getcwd() + + def restore(self) -> None: + os.chdir(self.__saved) + + +class SysModulesSnapshot: + def __init__(self, preserve: Optional[Callable[[str], bool]] = None) -> None: + self.__preserve = preserve + self.__saved = dict(sys.modules) + + def restore(self) -> None: + if self.__preserve: + self.__saved.update( + (k, m) for k, m in sys.modules.items() if self.__preserve(k) + ) + sys.modules.clear() + sys.modules.update(self.__saved) + + +class SysPathsSnapshot: + def __init__(self) -> None: + self.__saved = list(sys.path), list(sys.meta_path) + + def restore(self) -> None: + sys.path[:], sys.meta_path[:] = self.__saved + + +@final +class Pytester: + """ + Facilities to write tests/configuration files, execute pytest in isolation, and match + against expected output, perfect for black-box testing of pytest plugins. + + It attempts to isolate the test run from external factors as much as possible, modifying + the current working directory to :attr:`path` and environment variables during initialization. + """ + + __test__ = False + + CLOSE_STDIN: "Final" = NOTSET + + class TimeoutExpired(Exception): + pass + + def __init__( + self, + request: FixtureRequest, + tmp_path_factory: TempPathFactory, + monkeypatch: MonkeyPatch, + *, + _ispytest: bool = False, + ) -> None: + check_ispytest(_ispytest) + self._request = request + self._mod_collections: WeakKeyDictionary[ + Collector, List[Union[Item, Collector]] + ] = WeakKeyDictionary() + if request.function: + name: str = request.function.__name__ + else: + name = request.node.name + self._name = name + self._path: Path = tmp_path_factory.mktemp(name, numbered=True) + #: A list of plugins to use with :py:meth:`parseconfig` and + #: :py:meth:`runpytest`. Initially this is an empty list but plugins can + #: be added to the list. The type of items to add to the list depends on + #: the method using them so refer to them for details. + self.plugins: List[Union[str, _PluggyPlugin]] = [] + self._cwd_snapshot = CwdSnapshot() + self._sys_path_snapshot = SysPathsSnapshot() + self._sys_modules_snapshot = self.__take_sys_modules_snapshot() + self.chdir() + self._request.addfinalizer(self._finalize) + self._method = self._request.config.getoption("--runpytest") + self._test_tmproot = tmp_path_factory.mktemp(f"tmp-{name}", numbered=True) + + self._monkeypatch = mp = monkeypatch + mp.setenv("PYTEST_DEBUG_TEMPROOT", str(self._test_tmproot)) + # Ensure no unexpected caching via tox. + mp.delenv("TOX_ENV_DIR", raising=False) + # Discard outer pytest options. + mp.delenv("PYTEST_ADDOPTS", raising=False) + # Ensure no user config is used. + tmphome = str(self.path) + mp.setenv("HOME", tmphome) + mp.setenv("USERPROFILE", tmphome) + # Do not use colors for inner runs by default. + mp.setenv("PY_COLORS", "0") + + @property + def path(self) -> Path: + """Temporary directory path used to create files/run tests from, etc.""" + return self._path + + def __repr__(self) -> str: + return f"" + + def _finalize(self) -> None: + """ + Clean up global state artifacts. + + Some methods modify the global interpreter state and this tries to + clean this up. It does not remove the temporary directory however so + it can be looked at after the test run has finished. + """ + self._sys_modules_snapshot.restore() + self._sys_path_snapshot.restore() + self._cwd_snapshot.restore() + + def __take_sys_modules_snapshot(self) -> SysModulesSnapshot: + # Some zope modules used by twisted-related tests keep internal state + # and can't be deleted; we had some trouble in the past with + # `zope.interface` for example. + # + # Preserve readline due to https://bugs.python.org/issue41033. + # pexpect issues a SIGWINCH. + def preserve_module(name): + return name.startswith(("zope", "readline")) + + return SysModulesSnapshot(preserve=preserve_module) + + def make_hook_recorder(self, pluginmanager: PytestPluginManager) -> HookRecorder: + """Create a new :class:`HookRecorder` for a :class:`PytestPluginManager`.""" + pluginmanager.reprec = reprec = HookRecorder(pluginmanager, _ispytest=True) + self._request.addfinalizer(reprec.finish_recording) + return reprec + + def chdir(self) -> None: + """Cd into the temporary directory. + + This is done automatically upon instantiation. + """ + os.chdir(self.path) + + def _makefile( + self, + ext: str, + lines: Sequence[Union[Any, bytes]], + files: Dict[str, str], + encoding: str = "utf-8", + ) -> Path: + items = list(files.items()) + + if ext and not ext.startswith("."): + raise ValueError( + f"pytester.makefile expects a file extension, try .{ext} instead of {ext}" + ) + + def to_text(s: Union[Any, bytes]) -> str: + return s.decode(encoding) if isinstance(s, bytes) else str(s) + + if lines: + source = "\n".join(to_text(x) for x in lines) + basename = self._name + items.insert(0, (basename, source)) + + ret = None + for basename, value in items: + p = self.path.joinpath(basename).with_suffix(ext) + p.parent.mkdir(parents=True, exist_ok=True) + source_ = Source(value) + source = "\n".join(to_text(line) for line in source_.lines) + p.write_text(source.strip(), encoding=encoding) + if ret is None: + ret = p + assert ret is not None + return ret + + def makefile(self, ext: str, *args: str, **kwargs: str) -> Path: + r"""Create new text file(s) in the test directory. + + :param ext: + The extension the file(s) should use, including the dot, e.g. `.py`. + :param args: + All args are treated as strings and joined using newlines. + The result is written as contents to the file. The name of the + file is based on the test function requesting this fixture. + :param kwargs: + Each keyword is the name of a file, while the value of it will + be written as contents of the file. + :returns: + The first created file. + + Examples: + + .. code-block:: python + + pytester.makefile(".txt", "line1", "line2") + + pytester.makefile(".ini", pytest="[pytest]\naddopts=-rs\n") + + To create binary files, use :meth:`pathlib.Path.write_bytes` directly: + + .. code-block:: python + + filename = pytester.path.joinpath("foo.bin") + filename.write_bytes(b"...") + """ + return self._makefile(ext, args, kwargs) + + def makeconftest(self, source: str) -> Path: + """Write a contest.py file. + + :param source: The contents. + :returns: The conftest.py file. + """ + return self.makepyfile(conftest=source) + + def makeini(self, source: str) -> Path: + """Write a tox.ini file. + + :param source: The contents. + :returns: The tox.ini file. + """ + return self.makefile(".ini", tox=source) + + def getinicfg(self, source: str) -> SectionWrapper: + """Return the pytest section from the tox.ini config file.""" + p = self.makeini(source) + return IniConfig(str(p))["pytest"] + + def makepyprojecttoml(self, source: str) -> Path: + """Write a pyproject.toml file. + + :param source: The contents. + :returns: The pyproject.ini file. + + .. versionadded:: 6.0 + """ + return self.makefile(".toml", pyproject=source) + + def makepyfile(self, *args, **kwargs) -> Path: + r"""Shortcut for .makefile() with a .py extension. + + Defaults to the test name with a '.py' extension, e.g test_foobar.py, overwriting + existing files. + + Examples: + + .. code-block:: python + + def test_something(pytester): + # Initial file is created test_something.py. + pytester.makepyfile("foobar") + # To create multiple files, pass kwargs accordingly. + pytester.makepyfile(custom="foobar") + # At this point, both 'test_something.py' & 'custom.py' exist in the test directory. + + """ + return self._makefile(".py", args, kwargs) + + def maketxtfile(self, *args, **kwargs) -> Path: + r"""Shortcut for .makefile() with a .txt extension. + + Defaults to the test name with a '.txt' extension, e.g test_foobar.txt, overwriting + existing files. + + Examples: + + .. code-block:: python + + def test_something(pytester): + # Initial file is created test_something.txt. + pytester.maketxtfile("foobar") + # To create multiple files, pass kwargs accordingly. + pytester.maketxtfile(custom="foobar") + # At this point, both 'test_something.txt' & 'custom.txt' exist in the test directory. + + """ + return self._makefile(".txt", args, kwargs) + + def syspathinsert( + self, path: Optional[Union[str, "os.PathLike[str]"]] = None + ) -> None: + """Prepend a directory to sys.path, defaults to :attr:`path`. + + This is undone automatically when this object dies at the end of each + test. + + :param path: + The path. + """ + if path is None: + path = self.path + + self._monkeypatch.syspath_prepend(str(path)) + + def mkdir(self, name: Union[str, "os.PathLike[str]"]) -> Path: + """Create a new (sub)directory. + + :param name: + The name of the directory, relative to the pytester path. + :returns: + The created directory. + """ + p = self.path / name + p.mkdir() + return p + + def mkpydir(self, name: Union[str, "os.PathLike[str]"]) -> Path: + """Create a new python package. + + This creates a (sub)directory with an empty ``__init__.py`` file so it + gets recognised as a Python package. + """ + p = self.path / name + p.mkdir() + p.joinpath("__init__.py").touch() + return p + + def copy_example(self, name: Optional[str] = None) -> Path: + """Copy file from project's directory into the testdir. + + :param name: + The name of the file to copy. + :return: + Path to the copied directory (inside ``self.path``). + """ + example_dir_ = self._request.config.getini("pytester_example_dir") + if example_dir_ is None: + raise ValueError("pytester_example_dir is unset, can't copy examples") + example_dir: Path = self._request.config.rootpath / example_dir_ + + for extra_element in self._request.node.iter_markers("pytester_example_path"): + assert extra_element.args + example_dir = example_dir.joinpath(*extra_element.args) + + if name is None: + func_name = self._name + maybe_dir = example_dir / func_name + maybe_file = example_dir / (func_name + ".py") + + if maybe_dir.is_dir(): + example_path = maybe_dir + elif maybe_file.is_file(): + example_path = maybe_file + else: + raise LookupError( + f"{func_name} can't be found as module or package in {example_dir}" + ) + else: + example_path = example_dir.joinpath(name) + + if example_path.is_dir() and not example_path.joinpath("__init__.py").is_file(): + copytree(example_path, self.path) + return self.path + elif example_path.is_file(): + result = self.path.joinpath(example_path.name) + shutil.copy(example_path, result) + return result + else: + raise LookupError( + f'example "{example_path}" is not found as a file or directory' + ) + + def getnode( + self, config: Config, arg: Union[str, "os.PathLike[str]"] + ) -> Union[Collector, Item]: + """Get the collection node of a file. + + :param config: + A pytest config. + See :py:meth:`parseconfig` and :py:meth:`parseconfigure` for creating it. + :param arg: + Path to the file. + :returns: + The node. + """ + session = Session.from_config(config) + assert "::" not in str(arg) + p = Path(os.path.abspath(arg)) + config.hook.pytest_sessionstart(session=session) + res = session.perform_collect([str(p)], genitems=False)[0] + config.hook.pytest_sessionfinish(session=session, exitstatus=ExitCode.OK) + return res + + def getpathnode( + self, path: Union[str, "os.PathLike[str]"] + ) -> Union[Collector, Item]: + """Return the collection node of a file. + + This is like :py:meth:`getnode` but uses :py:meth:`parseconfigure` to + create the (configured) pytest Config instance. + + :param path: + Path to the file. + :returns: + The node. + """ + path = Path(path) + config = self.parseconfigure(path) + session = Session.from_config(config) + x = bestrelpath(session.path, path) + config.hook.pytest_sessionstart(session=session) + res = session.perform_collect([x], genitems=False)[0] + config.hook.pytest_sessionfinish(session=session, exitstatus=ExitCode.OK) + return res + + def genitems(self, colitems: Sequence[Union[Item, Collector]]) -> List[Item]: + """Generate all test items from a collection node. + + This recurses into the collection node and returns a list of all the + test items contained within. + + :param colitems: + The collection nodes. + :returns: + The collected items. + """ + session = colitems[0].session + result: List[Item] = [] + for colitem in colitems: + result.extend(session.genitems(colitem)) + return result + + def runitem(self, source: str) -> Any: + """Run the "test_func" Item. + + The calling test instance (class containing the test method) must + provide a ``.getrunner()`` method which should return a runner which + can run the test protocol for a single item, e.g. + :py:func:`_pytest.runner.runtestprotocol`. + """ + # used from runner functional tests + item = self.getitem(source) + # the test class where we are called from wants to provide the runner + testclassinstance = self._request.instance + runner = testclassinstance.getrunner() + return runner(item) + + def inline_runsource(self, source: str, *cmdlineargs) -> HookRecorder: + """Run a test module in process using ``pytest.main()``. + + This run writes "source" into a temporary file and runs + ``pytest.main()`` on it, returning a :py:class:`HookRecorder` instance + for the result. + + :param source: The source code of the test module. + :param cmdlineargs: Any extra command line arguments to use. + """ + p = self.makepyfile(source) + values = list(cmdlineargs) + [p] + return self.inline_run(*values) + + def inline_genitems(self, *args) -> Tuple[List[Item], HookRecorder]: + """Run ``pytest.main(['--collectonly'])`` in-process. + + Runs the :py:func:`pytest.main` function to run all of pytest inside + the test process itself like :py:meth:`inline_run`, but returns a + tuple of the collected items and a :py:class:`HookRecorder` instance. + """ + rec = self.inline_run("--collect-only", *args) + items = [x.item for x in rec.getcalls("pytest_itemcollected")] + return items, rec + + def inline_run( + self, + *args: Union[str, "os.PathLike[str]"], + plugins=(), + no_reraise_ctrlc: bool = False, + ) -> HookRecorder: + """Run ``pytest.main()`` in-process, returning a HookRecorder. + + Runs the :py:func:`pytest.main` function to run all of pytest inside + the test process itself. This means it can return a + :py:class:`HookRecorder` instance which gives more detailed results + from that run than can be done by matching stdout/stderr from + :py:meth:`runpytest`. + + :param args: + Command line arguments to pass to :py:func:`pytest.main`. + :param plugins: + Extra plugin instances the ``pytest.main()`` instance should use. + :param no_reraise_ctrlc: + Typically we reraise keyboard interrupts from the child run. If + True, the KeyboardInterrupt exception is captured. + """ + # (maybe a cpython bug?) the importlib cache sometimes isn't updated + # properly between file creation and inline_run (especially if imports + # are interspersed with file creation) + importlib.invalidate_caches() + + plugins = list(plugins) + finalizers = [] + try: + # Any sys.module or sys.path changes done while running pytest + # inline should be reverted after the test run completes to avoid + # clashing with later inline tests run within the same pytest test, + # e.g. just because they use matching test module names. + finalizers.append(self.__take_sys_modules_snapshot().restore) + finalizers.append(SysPathsSnapshot().restore) + + # Important note: + # - our tests should not leave any other references/registrations + # laying around other than possibly loaded test modules + # referenced from sys.modules, as nothing will clean those up + # automatically + + rec = [] + + class Collect: + def pytest_configure(x, config: Config) -> None: + rec.append(self.make_hook_recorder(config.pluginmanager)) + + plugins.append(Collect()) + ret = main([str(x) for x in args], plugins=plugins) + if len(rec) == 1: + reprec = rec.pop() + else: + + class reprec: # type: ignore + pass + + reprec.ret = ret + + # Typically we reraise keyboard interrupts from the child run + # because it's our user requesting interruption of the testing. + if ret == ExitCode.INTERRUPTED and not no_reraise_ctrlc: + calls = reprec.getcalls("pytest_keyboard_interrupt") + if calls and calls[-1].excinfo.type == KeyboardInterrupt: + raise KeyboardInterrupt() + return reprec + finally: + for finalizer in finalizers: + finalizer() + + def runpytest_inprocess( + self, *args: Union[str, "os.PathLike[str]"], **kwargs: Any + ) -> RunResult: + """Return result of running pytest in-process, providing a similar + interface to what self.runpytest() provides.""" + syspathinsert = kwargs.pop("syspathinsert", False) + + if syspathinsert: + self.syspathinsert() + now = timing.time() + capture = _get_multicapture("sys") + capture.start_capturing() + try: + try: + reprec = self.inline_run(*args, **kwargs) + except SystemExit as e: + ret = e.args[0] + try: + ret = ExitCode(e.args[0]) + except ValueError: + pass + + class reprec: # type: ignore + ret = ret + + except Exception: + traceback.print_exc() + + class reprec: # type: ignore + ret = ExitCode(3) + + finally: + out, err = capture.readouterr() + capture.stop_capturing() + sys.stdout.write(out) + sys.stderr.write(err) + + assert reprec.ret is not None + res = RunResult( + reprec.ret, out.splitlines(), err.splitlines(), timing.time() - now + ) + res.reprec = reprec # type: ignore + return res + + def runpytest( + self, *args: Union[str, "os.PathLike[str]"], **kwargs: Any + ) -> RunResult: + """Run pytest inline or in a subprocess, depending on the command line + option "--runpytest" and return a :py:class:`~pytest.RunResult`.""" + new_args = self._ensure_basetemp(args) + if self._method == "inprocess": + return self.runpytest_inprocess(*new_args, **kwargs) + elif self._method == "subprocess": + return self.runpytest_subprocess(*new_args, **kwargs) + raise RuntimeError(f"Unrecognized runpytest option: {self._method}") + + def _ensure_basetemp( + self, args: Sequence[Union[str, "os.PathLike[str]"]] + ) -> List[Union[str, "os.PathLike[str]"]]: + new_args = list(args) + for x in new_args: + if str(x).startswith("--basetemp"): + break + else: + new_args.append("--basetemp=%s" % self.path.parent.joinpath("basetemp")) + return new_args + + def parseconfig(self, *args: Union[str, "os.PathLike[str]"]) -> Config: + """Return a new pytest :class:`pytest.Config` instance from given + commandline args. + + This invokes the pytest bootstrapping code in _pytest.config to create a + new :py:class:`pytest.PytestPluginManager` and call the + :hook:`pytest_cmdline_parse` hook to create a new :class:`pytest.Config` + instance. + + If :attr:`plugins` has been populated they should be plugin modules + to be registered with the plugin manager. + """ + import _pytest.config + + new_args = self._ensure_basetemp(args) + new_args = [str(x) for x in new_args] + + config = _pytest.config._prepareconfig(new_args, self.plugins) # type: ignore[arg-type] + # we don't know what the test will do with this half-setup config + # object and thus we make sure it gets unconfigured properly in any + # case (otherwise capturing could still be active, for example) + self._request.addfinalizer(config._ensure_unconfigure) + return config + + def parseconfigure(self, *args: Union[str, "os.PathLike[str]"]) -> Config: + """Return a new pytest configured Config instance. + + Returns a new :py:class:`pytest.Config` instance like + :py:meth:`parseconfig`, but also calls the :hook:`pytest_configure` + hook. + """ + config = self.parseconfig(*args) + config._do_configure() + return config + + def getitem( + self, source: Union[str, "os.PathLike[str]"], funcname: str = "test_func" + ) -> Item: + """Return the test item for a test function. + + Writes the source to a python file and runs pytest's collection on + the resulting module, returning the test item for the requested + function name. + + :param source: + The module source. + :param funcname: + The name of the test function for which to return a test item. + :returns: + The test item. + """ + items = self.getitems(source) + for item in items: + if item.name == funcname: + return item + assert 0, "{!r} item not found in module:\n{}\nitems: {}".format( + funcname, source, items + ) + + def getitems(self, source: Union[str, "os.PathLike[str]"]) -> List[Item]: + """Return all test items collected from the module. + + Writes the source to a Python file and runs pytest's collection on + the resulting module, returning all test items contained within. + """ + modcol = self.getmodulecol(source) + return self.genitems([modcol]) + + def getmodulecol( + self, + source: Union[str, "os.PathLike[str]"], + configargs=(), + *, + withinit: bool = False, + ): + """Return the module collection node for ``source``. + + Writes ``source`` to a file using :py:meth:`makepyfile` and then + runs the pytest collection on it, returning the collection node for the + test module. + + :param source: + The source code of the module to collect. + + :param configargs: + Any extra arguments to pass to :py:meth:`parseconfigure`. + + :param withinit: + Whether to also write an ``__init__.py`` file to the same + directory to ensure it is a package. + """ + if isinstance(source, os.PathLike): + path = self.path.joinpath(source) + assert not withinit, "not supported for paths" + else: + kw = {self._name: str(source)} + path = self.makepyfile(**kw) + if withinit: + self.makepyfile(__init__="#") + self.config = config = self.parseconfigure(path, *configargs) + return self.getnode(config, path) + + def collect_by_name( + self, modcol: Collector, name: str + ) -> Optional[Union[Item, Collector]]: + """Return the collection node for name from the module collection. + + Searches a module collection node for a collection node matching the + given name. + + :param modcol: A module collection node; see :py:meth:`getmodulecol`. + :param name: The name of the node to return. + """ + if modcol not in self._mod_collections: + self._mod_collections[modcol] = list(modcol.collect()) + for colitem in self._mod_collections[modcol]: + if colitem.name == name: + return colitem + return None + + def popen( + self, + cmdargs: Sequence[Union[str, "os.PathLike[str]"]], + stdout: Union[int, TextIO] = subprocess.PIPE, + stderr: Union[int, TextIO] = subprocess.PIPE, + stdin: Union[NotSetType, bytes, IO[Any], int] = CLOSE_STDIN, + **kw, + ): + """Invoke :py:class:`subprocess.Popen`. + + Calls :py:class:`subprocess.Popen` making sure the current working + directory is in ``PYTHONPATH``. + + You probably want to use :py:meth:`run` instead. + """ + env = os.environ.copy() + env["PYTHONPATH"] = os.pathsep.join( + filter(None, [os.getcwd(), env.get("PYTHONPATH", "")]) + ) + kw["env"] = env + + if stdin is self.CLOSE_STDIN: + kw["stdin"] = subprocess.PIPE + elif isinstance(stdin, bytes): + kw["stdin"] = subprocess.PIPE + else: + kw["stdin"] = stdin + + popen = subprocess.Popen(cmdargs, stdout=stdout, stderr=stderr, **kw) + if stdin is self.CLOSE_STDIN: + assert popen.stdin is not None + popen.stdin.close() + elif isinstance(stdin, bytes): + assert popen.stdin is not None + popen.stdin.write(stdin) + + return popen + + def run( + self, + *cmdargs: Union[str, "os.PathLike[str]"], + timeout: Optional[float] = None, + stdin: Union[NotSetType, bytes, IO[Any], int] = CLOSE_STDIN, + ) -> RunResult: + """Run a command with arguments. + + Run a process using :py:class:`subprocess.Popen` saving the stdout and + stderr. + + :param cmdargs: + The sequence of arguments to pass to :py:class:`subprocess.Popen`, + with path-like objects being converted to :py:class:`str` + automatically. + :param timeout: + The period in seconds after which to timeout and raise + :py:class:`Pytester.TimeoutExpired`. + :param stdin: + Optional standard input. + + - If it is :py:attr:`CLOSE_STDIN` (Default), then this method calls + :py:class:`subprocess.Popen` with ``stdin=subprocess.PIPE``, and + the standard input is closed immediately after the new command is + started. + + - If it is of type :py:class:`bytes`, these bytes are sent to the + standard input of the command. + + - Otherwise, it is passed through to :py:class:`subprocess.Popen`. + For further information in this case, consult the document of the + ``stdin`` parameter in :py:class:`subprocess.Popen`. + :returns: + The result. + """ + __tracebackhide__ = True + + cmdargs = tuple(os.fspath(arg) for arg in cmdargs) + p1 = self.path.joinpath("stdout") + p2 = self.path.joinpath("stderr") + print("running:", *cmdargs) + print(" in:", Path.cwd()) + + with p1.open("w", encoding="utf8") as f1, p2.open("w", encoding="utf8") as f2: + now = timing.time() + popen = self.popen( + cmdargs, + stdin=stdin, + stdout=f1, + stderr=f2, + close_fds=(sys.platform != "win32"), + ) + if popen.stdin is not None: + popen.stdin.close() + + def handle_timeout() -> None: + __tracebackhide__ = True + + timeout_message = ( + "{seconds} second timeout expired running:" + " {command}".format(seconds=timeout, command=cmdargs) + ) + + popen.kill() + popen.wait() + raise self.TimeoutExpired(timeout_message) + + if timeout is None: + ret = popen.wait() + else: + try: + ret = popen.wait(timeout) + except subprocess.TimeoutExpired: + handle_timeout() + + with p1.open(encoding="utf8") as f1, p2.open(encoding="utf8") as f2: + out = f1.read().splitlines() + err = f2.read().splitlines() + + self._dump_lines(out, sys.stdout) + self._dump_lines(err, sys.stderr) + + with contextlib.suppress(ValueError): + ret = ExitCode(ret) + return RunResult(ret, out, err, timing.time() - now) + + def _dump_lines(self, lines, fp): + try: + for line in lines: + print(line, file=fp) + except UnicodeEncodeError: + print(f"couldn't print to {fp} because of encoding") + + def _getpytestargs(self) -> Tuple[str, ...]: + return sys.executable, "-mpytest" + + def runpython(self, script: "os.PathLike[str]") -> RunResult: + """Run a python script using sys.executable as interpreter.""" + return self.run(sys.executable, script) + + def runpython_c(self, command: str) -> RunResult: + """Run ``python -c "command"``.""" + return self.run(sys.executable, "-c", command) + + def runpytest_subprocess( + self, *args: Union[str, "os.PathLike[str]"], timeout: Optional[float] = None + ) -> RunResult: + """Run pytest as a subprocess with given arguments. + + Any plugins added to the :py:attr:`plugins` list will be added using the + ``-p`` command line option. Additionally ``--basetemp`` is used to put + any temporary files and directories in a numbered directory prefixed + with "runpytest-" to not conflict with the normal numbered pytest + location for temporary files and directories. + + :param args: + The sequence of arguments to pass to the pytest subprocess. + :param timeout: + The period in seconds after which to timeout and raise + :py:class:`Pytester.TimeoutExpired`. + :returns: + The result. + """ + __tracebackhide__ = True + p = make_numbered_dir(root=self.path, prefix="runpytest-", mode=0o700) + args = ("--basetemp=%s" % p,) + args + plugins = [x for x in self.plugins if isinstance(x, str)] + if plugins: + args = ("-p", plugins[0]) + args + args = self._getpytestargs() + args + return self.run(*args, timeout=timeout) + + def spawn_pytest( + self, string: str, expect_timeout: float = 10.0 + ) -> "pexpect.spawn": + """Run pytest using pexpect. + + This makes sure to use the right pytest and sets up the temporary + directory locations. + + The pexpect child is returned. + """ + basetemp = self.path / "temp-pexpect" + basetemp.mkdir(mode=0o700) + invoke = " ".join(map(str, self._getpytestargs())) + cmd = f"{invoke} --basetemp={basetemp} {string}" + return self.spawn(cmd, expect_timeout=expect_timeout) + + def spawn(self, cmd: str, expect_timeout: float = 10.0) -> "pexpect.spawn": + """Run a command using pexpect. + + The pexpect child is returned. + """ + pexpect = importorskip("pexpect", "3.0") + if hasattr(sys, "pypy_version_info") and "64" in platform.machine(): + skip("pypy-64 bit not supported") + if not hasattr(pexpect, "spawn"): + skip("pexpect.spawn not available") + logfile = self.path.joinpath("spawn.out").open("wb") + + child = pexpect.spawn(cmd, logfile=logfile, timeout=expect_timeout) + self._request.addfinalizer(logfile.close) + return child + + +class LineComp: + def __init__(self) -> None: + self.stringio = StringIO() + """:class:`python:io.StringIO()` instance used for input.""" + + def assert_contains_lines(self, lines2: Sequence[str]) -> None: + """Assert that ``lines2`` are contained (linearly) in :attr:`stringio`'s value. + + Lines are matched using :func:`LineMatcher.fnmatch_lines `. + """ + __tracebackhide__ = True + val = self.stringio.getvalue() + self.stringio.truncate(0) + self.stringio.seek(0) + lines1 = val.split("\n") + LineMatcher(lines1).fnmatch_lines(lines2) + + +class LineMatcher: + """Flexible matching of text. + + This is a convenience class to test large texts like the output of + commands. + + The constructor takes a list of lines without their trailing newlines, i.e. + ``text.splitlines()``. + """ + + def __init__(self, lines: List[str]) -> None: + self.lines = lines + self._log_output: List[str] = [] + + def __str__(self) -> str: + """Return the entire original text. + + .. versionadded:: 6.2 + You can use :meth:`str` in older versions. + """ + return "\n".join(self.lines) + + def _getlines(self, lines2: Union[str, Sequence[str], Source]) -> Sequence[str]: + if isinstance(lines2, str): + lines2 = Source(lines2) + if isinstance(lines2, Source): + lines2 = lines2.strip().lines + return lines2 + + def fnmatch_lines_random(self, lines2: Sequence[str]) -> None: + """Check lines exist in the output in any order (using :func:`python:fnmatch.fnmatch`).""" + __tracebackhide__ = True + self._match_lines_random(lines2, fnmatch) + + def re_match_lines_random(self, lines2: Sequence[str]) -> None: + """Check lines exist in the output in any order (using :func:`python:re.match`).""" + __tracebackhide__ = True + self._match_lines_random(lines2, lambda name, pat: bool(re.match(pat, name))) + + def _match_lines_random( + self, lines2: Sequence[str], match_func: Callable[[str, str], bool] + ) -> None: + __tracebackhide__ = True + lines2 = self._getlines(lines2) + for line in lines2: + for x in self.lines: + if line == x or match_func(x, line): + self._log("matched: ", repr(line)) + break + else: + msg = "line %r not found in output" % line + self._log(msg) + self._fail(msg) + + def get_lines_after(self, fnline: str) -> Sequence[str]: + """Return all lines following the given line in the text. + + The given line can contain glob wildcards. + """ + for i, line in enumerate(self.lines): + if fnline == line or fnmatch(line, fnline): + return self.lines[i + 1 :] + raise ValueError("line %r not found in output" % fnline) + + def _log(self, *args) -> None: + self._log_output.append(" ".join(str(x) for x in args)) + + @property + def _log_text(self) -> str: + return "\n".join(self._log_output) + + def fnmatch_lines( + self, lines2: Sequence[str], *, consecutive: bool = False + ) -> None: + """Check lines exist in the output (using :func:`python:fnmatch.fnmatch`). + + The argument is a list of lines which have to match and can use glob + wildcards. If they do not match a pytest.fail() is called. The + matches and non-matches are also shown as part of the error message. + + :param lines2: String patterns to match. + :param consecutive: Match lines consecutively? + """ + __tracebackhide__ = True + self._match_lines(lines2, fnmatch, "fnmatch", consecutive=consecutive) + + def re_match_lines( + self, lines2: Sequence[str], *, consecutive: bool = False + ) -> None: + """Check lines exist in the output (using :func:`python:re.match`). + + The argument is a list of lines which have to match using ``re.match``. + If they do not match a pytest.fail() is called. + + The matches and non-matches are also shown as part of the error message. + + :param lines2: string patterns to match. + :param consecutive: match lines consecutively? + """ + __tracebackhide__ = True + self._match_lines( + lines2, + lambda name, pat: bool(re.match(pat, name)), + "re.match", + consecutive=consecutive, + ) + + def _match_lines( + self, + lines2: Sequence[str], + match_func: Callable[[str, str], bool], + match_nickname: str, + *, + consecutive: bool = False, + ) -> None: + """Underlying implementation of ``fnmatch_lines`` and ``re_match_lines``. + + :param Sequence[str] lines2: + List of string patterns to match. The actual format depends on + ``match_func``. + :param match_func: + A callable ``match_func(line, pattern)`` where line is the + captured line from stdout/stderr and pattern is the matching + pattern. + :param str match_nickname: + The nickname for the match function that will be logged to stdout + when a match occurs. + :param consecutive: + Match lines consecutively? + """ + if not isinstance(lines2, collections.abc.Sequence): + raise TypeError(f"invalid type for lines2: {type(lines2).__name__}") + lines2 = self._getlines(lines2) + lines1 = self.lines[:] + extralines = [] + __tracebackhide__ = True + wnick = len(match_nickname) + 1 + started = False + for line in lines2: + nomatchprinted = False + while lines1: + nextline = lines1.pop(0) + if line == nextline: + self._log("exact match:", repr(line)) + started = True + break + elif match_func(nextline, line): + self._log("%s:" % match_nickname, repr(line)) + self._log( + "{:>{width}}".format("with:", width=wnick), repr(nextline) + ) + started = True + break + else: + if consecutive and started: + msg = f"no consecutive match: {line!r}" + self._log(msg) + self._log( + "{:>{width}}".format("with:", width=wnick), repr(nextline) + ) + self._fail(msg) + if not nomatchprinted: + self._log( + "{:>{width}}".format("nomatch:", width=wnick), repr(line) + ) + nomatchprinted = True + self._log("{:>{width}}".format("and:", width=wnick), repr(nextline)) + extralines.append(nextline) + else: + msg = f"remains unmatched: {line!r}" + self._log(msg) + self._fail(msg) + self._log_output = [] + + def no_fnmatch_line(self, pat: str) -> None: + """Ensure captured lines do not match the given pattern, using ``fnmatch.fnmatch``. + + :param str pat: The pattern to match lines. + """ + __tracebackhide__ = True + self._no_match_line(pat, fnmatch, "fnmatch") + + def no_re_match_line(self, pat: str) -> None: + """Ensure captured lines do not match the given pattern, using ``re.match``. + + :param str pat: The regular expression to match lines. + """ + __tracebackhide__ = True + self._no_match_line( + pat, lambda name, pat: bool(re.match(pat, name)), "re.match" + ) + + def _no_match_line( + self, pat: str, match_func: Callable[[str, str], bool], match_nickname: str + ) -> None: + """Ensure captured lines does not have a the given pattern, using ``fnmatch.fnmatch``. + + :param str pat: The pattern to match lines. + """ + __tracebackhide__ = True + nomatch_printed = False + wnick = len(match_nickname) + 1 + for line in self.lines: + if match_func(line, pat): + msg = f"{match_nickname}: {pat!r}" + self._log(msg) + self._log("{:>{width}}".format("with:", width=wnick), repr(line)) + self._fail(msg) + else: + if not nomatch_printed: + self._log("{:>{width}}".format("nomatch:", width=wnick), repr(pat)) + nomatch_printed = True + self._log("{:>{width}}".format("and:", width=wnick), repr(line)) + self._log_output = [] + + def _fail(self, msg: str) -> None: + __tracebackhide__ = True + log_text = self._log_text + self._log_output = [] + fail(log_text) + + def str(self) -> str: + """Return the entire original text.""" + return str(self) diff --git a/utils/python-venv/Lib/site-packages/_pytest/pytester_assertions.py b/utils/python-venv/Lib/site-packages/_pytest/pytester_assertions.py new file mode 100644 index 0000000..657e4db --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/pytester_assertions.py @@ -0,0 +1,75 @@ +"""Helper plugin for pytester; should not be loaded on its own.""" +# This plugin contains assertions used by pytester. pytester cannot +# contain them itself, since it is imported by the `pytest` module, +# hence cannot be subject to assertion rewriting, which requires a +# module to not be already imported. +from typing import Dict +from typing import Optional +from typing import Sequence +from typing import Tuple +from typing import Union + +from _pytest.reports import CollectReport +from _pytest.reports import TestReport + + +def assertoutcome( + outcomes: Tuple[ + Sequence[TestReport], + Sequence[Union[CollectReport, TestReport]], + Sequence[Union[CollectReport, TestReport]], + ], + passed: int = 0, + skipped: int = 0, + failed: int = 0, +) -> None: + __tracebackhide__ = True + + realpassed, realskipped, realfailed = outcomes + obtained = { + "passed": len(realpassed), + "skipped": len(realskipped), + "failed": len(realfailed), + } + expected = {"passed": passed, "skipped": skipped, "failed": failed} + assert obtained == expected, outcomes + + +def assert_outcomes( + outcomes: Dict[str, int], + passed: int = 0, + skipped: int = 0, + failed: int = 0, + errors: int = 0, + xpassed: int = 0, + xfailed: int = 0, + warnings: Optional[int] = None, + deselected: Optional[int] = None, +) -> None: + """Assert that the specified outcomes appear with the respective + numbers (0 means it didn't occur) in the text output from a test run.""" + __tracebackhide__ = True + + obtained = { + "passed": outcomes.get("passed", 0), + "skipped": outcomes.get("skipped", 0), + "failed": outcomes.get("failed", 0), + "errors": outcomes.get("errors", 0), + "xpassed": outcomes.get("xpassed", 0), + "xfailed": outcomes.get("xfailed", 0), + } + expected = { + "passed": passed, + "skipped": skipped, + "failed": failed, + "errors": errors, + "xpassed": xpassed, + "xfailed": xfailed, + } + if warnings is not None: + obtained["warnings"] = outcomes.get("warnings", 0) + expected["warnings"] = warnings + if deselected is not None: + obtained["deselected"] = outcomes.get("deselected", 0) + expected["deselected"] = deselected + assert obtained == expected diff --git a/utils/python-venv/Lib/site-packages/_pytest/python.py b/utils/python-venv/Lib/site-packages/_pytest/python.py new file mode 100644 index 0000000..1e30d42 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/python.py @@ -0,0 +1,1835 @@ +"""Python test discovery, setup and run of test functions.""" +import enum +import fnmatch +import inspect +import itertools +import os +import sys +import types +import warnings +from collections import Counter +from collections import defaultdict +from functools import partial +from pathlib import Path +from typing import Any +from typing import Callable +from typing import Dict +from typing import Generator +from typing import Iterable +from typing import Iterator +from typing import List +from typing import Mapping +from typing import Optional +from typing import Pattern +from typing import Sequence +from typing import Set +from typing import Tuple +from typing import TYPE_CHECKING +from typing import Union + +import attr + +import _pytest +from _pytest import fixtures +from _pytest import nodes +from _pytest._code import filter_traceback +from _pytest._code import getfslineno +from _pytest._code.code import ExceptionInfo +from _pytest._code.code import TerminalRepr +from _pytest._io import TerminalWriter +from _pytest._io.saferepr import saferepr +from _pytest.compat import ascii_escaped +from _pytest.compat import assert_never +from _pytest.compat import final +from _pytest.compat import get_default_arg_names +from _pytest.compat import get_real_func +from _pytest.compat import getimfunc +from _pytest.compat import getlocation +from _pytest.compat import is_async_function +from _pytest.compat import is_generator +from _pytest.compat import LEGACY_PATH +from _pytest.compat import NOTSET +from _pytest.compat import safe_getattr +from _pytest.compat import safe_isclass +from _pytest.compat import STRING_TYPES +from _pytest.config import Config +from _pytest.config import ExitCode +from _pytest.config import hookimpl +from _pytest.config.argparsing import Parser +from _pytest.deprecated import check_ispytest +from _pytest.deprecated import FSCOLLECTOR_GETHOOKPROXY_ISINITPATH +from _pytest.deprecated import INSTANCE_COLLECTOR +from _pytest.deprecated import NOSE_SUPPORT_METHOD +from _pytest.fixtures import FuncFixtureInfo +from _pytest.main import Session +from _pytest.mark import MARK_GEN +from _pytest.mark import ParameterSet +from _pytest.mark.structures import get_unpacked_marks +from _pytest.mark.structures import Mark +from _pytest.mark.structures import MarkDecorator +from _pytest.mark.structures import normalize_mark_list +from _pytest.outcomes import fail +from _pytest.outcomes import skip +from _pytest.pathlib import bestrelpath +from _pytest.pathlib import fnmatch_ex +from _pytest.pathlib import import_path +from _pytest.pathlib import ImportPathMismatchError +from _pytest.pathlib import parts +from _pytest.pathlib import visit +from _pytest.scope import Scope +from _pytest.warning_types import PytestCollectionWarning +from _pytest.warning_types import PytestReturnNotNoneWarning +from _pytest.warning_types import PytestUnhandledCoroutineWarning + +if TYPE_CHECKING: + from typing_extensions import Literal + + from _pytest.scope import _ScopeName + + +_PYTEST_DIR = Path(_pytest.__file__).parent + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("general") + group.addoption( + "--fixtures", + "--funcargs", + action="store_true", + dest="showfixtures", + default=False, + help="Show available fixtures, sorted by plugin appearance " + "(fixtures with leading '_' are only shown with '-v')", + ) + group.addoption( + "--fixtures-per-test", + action="store_true", + dest="show_fixtures_per_test", + default=False, + help="Show fixtures per test", + ) + parser.addini( + "python_files", + type="args", + # NOTE: default is also used in AssertionRewritingHook. + default=["test_*.py", "*_test.py"], + help="Glob-style file patterns for Python test module discovery", + ) + parser.addini( + "python_classes", + type="args", + default=["Test"], + help="Prefixes or glob names for Python test class discovery", + ) + parser.addini( + "python_functions", + type="args", + default=["test"], + help="Prefixes or glob names for Python test function and method discovery", + ) + parser.addini( + "disable_test_id_escaping_and_forfeit_all_rights_to_community_support", + type="bool", + default=False, + help="Disable string escape non-ASCII characters, might cause unwanted " + "side effects(use at your own risk)", + ) + + +def pytest_cmdline_main(config: Config) -> Optional[Union[int, ExitCode]]: + if config.option.showfixtures: + showfixtures(config) + return 0 + if config.option.show_fixtures_per_test: + show_fixtures_per_test(config) + return 0 + return None + + +def pytest_generate_tests(metafunc: "Metafunc") -> None: + for marker in metafunc.definition.iter_markers(name="parametrize"): + metafunc.parametrize(*marker.args, **marker.kwargs, _param_mark=marker) + + +def pytest_configure(config: Config) -> None: + config.addinivalue_line( + "markers", + "parametrize(argnames, argvalues): call a test function multiple " + "times passing in different arguments in turn. argvalues generally " + "needs to be a list of values if argnames specifies only one name " + "or a list of tuples of values if argnames specifies multiple names. " + "Example: @parametrize('arg1', [1,2]) would lead to two calls of the " + "decorated test function, one with arg1=1 and another with arg1=2." + "see https://docs.pytest.org/en/stable/how-to/parametrize.html for more info " + "and examples.", + ) + config.addinivalue_line( + "markers", + "usefixtures(fixturename1, fixturename2, ...): mark tests as needing " + "all of the specified fixtures. see " + "https://docs.pytest.org/en/stable/explanation/fixtures.html#usefixtures ", + ) + + +def async_warn_and_skip(nodeid: str) -> None: + msg = "async def functions are not natively supported and have been skipped.\n" + msg += ( + "You need to install a suitable plugin for your async framework, for example:\n" + ) + msg += " - anyio\n" + msg += " - pytest-asyncio\n" + msg += " - pytest-tornasync\n" + msg += " - pytest-trio\n" + msg += " - pytest-twisted" + warnings.warn(PytestUnhandledCoroutineWarning(msg.format(nodeid))) + skip(reason="async def function and no async plugin installed (see warnings)") + + +@hookimpl(trylast=True) +def pytest_pyfunc_call(pyfuncitem: "Function") -> Optional[object]: + testfunction = pyfuncitem.obj + if is_async_function(testfunction): + async_warn_and_skip(pyfuncitem.nodeid) + funcargs = pyfuncitem.funcargs + testargs = {arg: funcargs[arg] for arg in pyfuncitem._fixtureinfo.argnames} + result = testfunction(**testargs) + if hasattr(result, "__await__") or hasattr(result, "__aiter__"): + async_warn_and_skip(pyfuncitem.nodeid) + elif result is not None: + warnings.warn( + PytestReturnNotNoneWarning( + f"Expected None, but {pyfuncitem.nodeid} returned {result!r}, which will be an error in a " + "future version of pytest. Did you mean to use `assert` instead of `return`?" + ) + ) + return True + + +def pytest_collect_file(file_path: Path, parent: nodes.Collector) -> Optional["Module"]: + if file_path.suffix == ".py": + if not parent.session.isinitpath(file_path): + if not path_matches_patterns( + file_path, parent.config.getini("python_files") + ["__init__.py"] + ): + return None + ihook = parent.session.gethookproxy(file_path) + module: Module = ihook.pytest_pycollect_makemodule( + module_path=file_path, parent=parent + ) + return module + return None + + +def path_matches_patterns(path: Path, patterns: Iterable[str]) -> bool: + """Return whether path matches any of the patterns in the list of globs given.""" + return any(fnmatch_ex(pattern, path) for pattern in patterns) + + +def pytest_pycollect_makemodule(module_path: Path, parent) -> "Module": + if module_path.name == "__init__.py": + pkg: Package = Package.from_parent(parent, path=module_path) + return pkg + mod: Module = Module.from_parent(parent, path=module_path) + return mod + + +@hookimpl(trylast=True) +def pytest_pycollect_makeitem( + collector: Union["Module", "Class"], name: str, obj: object +) -> Union[None, nodes.Item, nodes.Collector, List[Union[nodes.Item, nodes.Collector]]]: + assert isinstance(collector, (Class, Module)), type(collector) + # Nothing was collected elsewhere, let's do it here. + if safe_isclass(obj): + if collector.istestclass(obj, name): + klass: Class = Class.from_parent(collector, name=name, obj=obj) + return klass + elif collector.istestfunction(obj, name): + # mock seems to store unbound methods (issue473), normalize it. + obj = getattr(obj, "__func__", obj) + # We need to try and unwrap the function if it's a functools.partial + # or a functools.wrapped. + # We mustn't if it's been wrapped with mock.patch (python 2 only). + if not (inspect.isfunction(obj) or inspect.isfunction(get_real_func(obj))): + filename, lineno = getfslineno(obj) + warnings.warn_explicit( + message=PytestCollectionWarning( + "cannot collect %r because it is not a function." % name + ), + category=None, + filename=str(filename), + lineno=lineno + 1, + ) + elif getattr(obj, "__test__", True): + if is_generator(obj): + res: Function = Function.from_parent(collector, name=name) + reason = "yield tests were removed in pytest 4.0 - {name} will be ignored".format( + name=name + ) + res.add_marker(MARK_GEN.xfail(run=False, reason=reason)) + res.warn(PytestCollectionWarning(reason)) + return res + else: + return list(collector._genfunctions(name, obj)) + return None + + +class PyobjMixin(nodes.Node): + """this mix-in inherits from Node to carry over the typing information + + as its intended to always mix in before a node + its position in the mro is unaffected""" + + _ALLOW_MARKERS = True + + @property + def module(self): + """Python module object this node was collected from (can be None).""" + node = self.getparent(Module) + return node.obj if node is not None else None + + @property + def cls(self): + """Python class object this node was collected from (can be None).""" + node = self.getparent(Class) + return node.obj if node is not None else None + + @property + def instance(self): + """Python instance object the function is bound to. + + Returns None if not a test method, e.g. for a standalone test function, + a staticmethod, a class or a module. + """ + node = self.getparent(Function) + return getattr(node.obj, "__self__", None) if node is not None else None + + @property + def obj(self): + """Underlying Python object.""" + obj = getattr(self, "_obj", None) + if obj is None: + self._obj = obj = self._getobj() + # XXX evil hack + # used to avoid Function marker duplication + if self._ALLOW_MARKERS: + self.own_markers.extend(get_unpacked_marks(self.obj)) + # This assumes that `obj` is called before there is a chance + # to add custom keys to `self.keywords`, so no fear of overriding. + self.keywords.update((mark.name, mark) for mark in self.own_markers) + return obj + + @obj.setter + def obj(self, value): + self._obj = value + + def _getobj(self): + """Get the underlying Python object. May be overwritten by subclasses.""" + # TODO: Improve the type of `parent` such that assert/ignore aren't needed. + assert self.parent is not None + obj = self.parent.obj # type: ignore[attr-defined] + return getattr(obj, self.name) + + def getmodpath(self, stopatmodule: bool = True, includemodule: bool = False) -> str: + """Return Python path relative to the containing module.""" + chain = self.listchain() + chain.reverse() + parts = [] + for node in chain: + name = node.name + if isinstance(node, Module): + name = os.path.splitext(name)[0] + if stopatmodule: + if includemodule: + parts.append(name) + break + parts.append(name) + parts.reverse() + return ".".join(parts) + + def reportinfo(self) -> Tuple[Union["os.PathLike[str]", str], Optional[int], str]: + # XXX caching? + obj = self.obj + compat_co_firstlineno = getattr(obj, "compat_co_firstlineno", None) + if isinstance(compat_co_firstlineno, int): + # nose compatibility + file_path = sys.modules[obj.__module__].__file__ + assert file_path is not None + if file_path.endswith(".pyc"): + file_path = file_path[:-1] + path: Union["os.PathLike[str]", str] = file_path + lineno = compat_co_firstlineno + else: + path, lineno = getfslineno(obj) + modpath = self.getmodpath() + assert isinstance(lineno, int) + return path, lineno, modpath + + +# As an optimization, these builtin attribute names are pre-ignored when +# iterating over an object during collection -- the pytest_pycollect_makeitem +# hook is not called for them. +# fmt: off +class _EmptyClass: pass # noqa: E701 +IGNORED_ATTRIBUTES = frozenset.union( # noqa: E305 + frozenset(), + # Module. + dir(types.ModuleType("empty_module")), + # Some extra module attributes the above doesn't catch. + {"__builtins__", "__file__", "__cached__"}, + # Class. + dir(_EmptyClass), + # Instance. + dir(_EmptyClass()), +) +del _EmptyClass +# fmt: on + + +class PyCollector(PyobjMixin, nodes.Collector): + def funcnamefilter(self, name: str) -> bool: + return self._matches_prefix_or_glob_option("python_functions", name) + + def isnosetest(self, obj: object) -> bool: + """Look for the __test__ attribute, which is applied by the + @nose.tools.istest decorator. + """ + # We explicitly check for "is True" here to not mistakenly treat + # classes with a custom __getattr__ returning something truthy (like a + # function) as test classes. + return safe_getattr(obj, "__test__", False) is True + + def classnamefilter(self, name: str) -> bool: + return self._matches_prefix_or_glob_option("python_classes", name) + + def istestfunction(self, obj: object, name: str) -> bool: + if self.funcnamefilter(name) or self.isnosetest(obj): + if isinstance(obj, staticmethod): + # staticmethods need to be unwrapped. + obj = safe_getattr(obj, "__func__", False) + return callable(obj) and fixtures.getfixturemarker(obj) is None + else: + return False + + def istestclass(self, obj: object, name: str) -> bool: + return self.classnamefilter(name) or self.isnosetest(obj) + + def _matches_prefix_or_glob_option(self, option_name: str, name: str) -> bool: + """Check if the given name matches the prefix or glob-pattern defined + in ini configuration.""" + for option in self.config.getini(option_name): + if name.startswith(option): + return True + # Check that name looks like a glob-string before calling fnmatch + # because this is called for every name in each collected module, + # and fnmatch is somewhat expensive to call. + elif ("*" in option or "?" in option or "[" in option) and fnmatch.fnmatch( + name, option + ): + return True + return False + + def collect(self) -> Iterable[Union[nodes.Item, nodes.Collector]]: + if not getattr(self.obj, "__test__", True): + return [] + + # Avoid random getattrs and peek in the __dict__ instead. + dicts = [getattr(self.obj, "__dict__", {})] + if isinstance(self.obj, type): + for basecls in self.obj.__mro__: + dicts.append(basecls.__dict__) + + # In each class, nodes should be definition ordered. + # __dict__ is definition ordered. + seen: Set[str] = set() + dict_values: List[List[Union[nodes.Item, nodes.Collector]]] = [] + ihook = self.ihook + for dic in dicts: + values: List[Union[nodes.Item, nodes.Collector]] = [] + # Note: seems like the dict can change during iteration - + # be careful not to remove the list() without consideration. + for name, obj in list(dic.items()): + if name in IGNORED_ATTRIBUTES: + continue + if name in seen: + continue + seen.add(name) + res = ihook.pytest_pycollect_makeitem( + collector=self, name=name, obj=obj + ) + if res is None: + continue + elif isinstance(res, list): + values.extend(res) + else: + values.append(res) + dict_values.append(values) + + # Between classes in the class hierarchy, reverse-MRO order -- nodes + # inherited from base classes should come before subclasses. + result = [] + for values in reversed(dict_values): + result.extend(values) + return result + + def _genfunctions(self, name: str, funcobj) -> Iterator["Function"]: + modulecol = self.getparent(Module) + assert modulecol is not None + module = modulecol.obj + clscol = self.getparent(Class) + cls = clscol and clscol.obj or None + + definition = FunctionDefinition.from_parent(self, name=name, callobj=funcobj) + fixtureinfo = definition._fixtureinfo + + # pytest_generate_tests impls call metafunc.parametrize() which fills + # metafunc._calls, the outcome of the hook. + metafunc = Metafunc( + definition=definition, + fixtureinfo=fixtureinfo, + config=self.config, + cls=cls, + module=module, + _ispytest=True, + ) + methods = [] + if hasattr(module, "pytest_generate_tests"): + methods.append(module.pytest_generate_tests) + if cls is not None and hasattr(cls, "pytest_generate_tests"): + methods.append(cls().pytest_generate_tests) + self.ihook.pytest_generate_tests.call_extra(methods, dict(metafunc=metafunc)) + + if not metafunc._calls: + yield Function.from_parent(self, name=name, fixtureinfo=fixtureinfo) + else: + # Add funcargs() as fixturedefs to fixtureinfo.arg2fixturedefs. + fm = self.session._fixturemanager + fixtures.add_funcarg_pseudo_fixture_def(self, metafunc, fm) + + # Add_funcarg_pseudo_fixture_def may have shadowed some fixtures + # with direct parametrization, so make sure we update what the + # function really needs. + fixtureinfo.prune_dependency_tree() + + for callspec in metafunc._calls: + subname = f"{name}[{callspec.id}]" + yield Function.from_parent( + self, + name=subname, + callspec=callspec, + fixtureinfo=fixtureinfo, + keywords={callspec.id: True}, + originalname=name, + ) + + +class Module(nodes.File, PyCollector): + """Collector for test classes and functions.""" + + def _getobj(self): + return self._importtestmodule() + + def collect(self) -> Iterable[Union[nodes.Item, nodes.Collector]]: + self._inject_setup_module_fixture() + self._inject_setup_function_fixture() + self.session._fixturemanager.parsefactories(self) + return super().collect() + + def _inject_setup_module_fixture(self) -> None: + """Inject a hidden autouse, module scoped fixture into the collected module object + that invokes setUpModule/tearDownModule if either or both are available. + + Using a fixture to invoke this methods ensures we play nicely and unsurprisingly with + other fixtures (#517). + """ + has_nose = self.config.pluginmanager.has_plugin("nose") + setup_module = _get_first_non_fixture_func( + self.obj, ("setUpModule", "setup_module") + ) + if setup_module is None and has_nose: + # The name "setup" is too common - only treat as fixture if callable. + setup_module = _get_first_non_fixture_func(self.obj, ("setup",)) + if not callable(setup_module): + setup_module = None + teardown_module = _get_first_non_fixture_func( + self.obj, ("tearDownModule", "teardown_module") + ) + if teardown_module is None and has_nose: + teardown_module = _get_first_non_fixture_func(self.obj, ("teardown",)) + # Same as "setup" above - only treat as fixture if callable. + if not callable(teardown_module): + teardown_module = None + + if setup_module is None and teardown_module is None: + return + + @fixtures.fixture( + autouse=True, + scope="module", + # Use a unique name to speed up lookup. + name=f"_xunit_setup_module_fixture_{self.obj.__name__}", + ) + def xunit_setup_module_fixture(request) -> Generator[None, None, None]: + if setup_module is not None: + _call_with_optional_argument(setup_module, request.module) + yield + if teardown_module is not None: + _call_with_optional_argument(teardown_module, request.module) + + self.obj.__pytest_setup_module = xunit_setup_module_fixture + + def _inject_setup_function_fixture(self) -> None: + """Inject a hidden autouse, function scoped fixture into the collected module object + that invokes setup_function/teardown_function if either or both are available. + + Using a fixture to invoke this methods ensures we play nicely and unsurprisingly with + other fixtures (#517). + """ + setup_function = _get_first_non_fixture_func(self.obj, ("setup_function",)) + teardown_function = _get_first_non_fixture_func( + self.obj, ("teardown_function",) + ) + if setup_function is None and teardown_function is None: + return + + @fixtures.fixture( + autouse=True, + scope="function", + # Use a unique name to speed up lookup. + name=f"_xunit_setup_function_fixture_{self.obj.__name__}", + ) + def xunit_setup_function_fixture(request) -> Generator[None, None, None]: + if request.instance is not None: + # in this case we are bound to an instance, so we need to let + # setup_method handle this + yield + return + if setup_function is not None: + _call_with_optional_argument(setup_function, request.function) + yield + if teardown_function is not None: + _call_with_optional_argument(teardown_function, request.function) + + self.obj.__pytest_setup_function = xunit_setup_function_fixture + + def _importtestmodule(self): + # We assume we are only called once per module. + importmode = self.config.getoption("--import-mode") + try: + mod = import_path(self.path, mode=importmode, root=self.config.rootpath) + except SyntaxError as e: + raise self.CollectError( + ExceptionInfo.from_current().getrepr(style="short") + ) from e + except ImportPathMismatchError as e: + raise self.CollectError( + "import file mismatch:\n" + "imported module %r has this __file__ attribute:\n" + " %s\n" + "which is not the same as the test file we want to collect:\n" + " %s\n" + "HINT: remove __pycache__ / .pyc files and/or use a " + "unique basename for your test file modules" % e.args + ) from e + except ImportError as e: + exc_info = ExceptionInfo.from_current() + if self.config.getoption("verbose") < 2: + exc_info.traceback = exc_info.traceback.filter(filter_traceback) + exc_repr = ( + exc_info.getrepr(style="short") + if exc_info.traceback + else exc_info.exconly() + ) + formatted_tb = str(exc_repr) + raise self.CollectError( + "ImportError while importing test module '{path}'.\n" + "Hint: make sure your test modules/packages have valid Python names.\n" + "Traceback:\n" + "{traceback}".format(path=self.path, traceback=formatted_tb) + ) from e + except skip.Exception as e: + if e.allow_module_level: + raise + raise self.CollectError( + "Using pytest.skip outside of a test will skip the entire module. " + "If that's your intention, pass `allow_module_level=True`. " + "If you want to skip a specific test or an entire class, " + "use the @pytest.mark.skip or @pytest.mark.skipif decorators." + ) from e + self.config.pluginmanager.consider_module(mod) + return mod + + +class Package(Module): + def __init__( + self, + fspath: Optional[LEGACY_PATH], + parent: nodes.Collector, + # NOTE: following args are unused: + config=None, + session=None, + nodeid=None, + path=Optional[Path], + ) -> None: + # NOTE: Could be just the following, but kept as-is for compat. + # nodes.FSCollector.__init__(self, fspath, parent=parent) + session = parent.session + nodes.FSCollector.__init__( + self, + fspath=fspath, + path=path, + parent=parent, + config=config, + session=session, + nodeid=nodeid, + ) + self.name = self.path.parent.name + + def setup(self) -> None: + # Not using fixtures to call setup_module here because autouse fixtures + # from packages are not called automatically (#4085). + setup_module = _get_first_non_fixture_func( + self.obj, ("setUpModule", "setup_module") + ) + if setup_module is not None: + _call_with_optional_argument(setup_module, self.obj) + + teardown_module = _get_first_non_fixture_func( + self.obj, ("tearDownModule", "teardown_module") + ) + if teardown_module is not None: + func = partial(_call_with_optional_argument, teardown_module, self.obj) + self.addfinalizer(func) + + def gethookproxy(self, fspath: "os.PathLike[str]"): + warnings.warn(FSCOLLECTOR_GETHOOKPROXY_ISINITPATH, stacklevel=2) + return self.session.gethookproxy(fspath) + + def isinitpath(self, path: Union[str, "os.PathLike[str]"]) -> bool: + warnings.warn(FSCOLLECTOR_GETHOOKPROXY_ISINITPATH, stacklevel=2) + return self.session.isinitpath(path) + + def _recurse(self, direntry: "os.DirEntry[str]") -> bool: + if direntry.name == "__pycache__": + return False + fspath = Path(direntry.path) + ihook = self.session.gethookproxy(fspath.parent) + if ihook.pytest_ignore_collect(collection_path=fspath, config=self.config): + return False + norecursepatterns = self.config.getini("norecursedirs") + if any(fnmatch_ex(pat, fspath) for pat in norecursepatterns): + return False + return True + + def _collectfile( + self, fspath: Path, handle_dupes: bool = True + ) -> Sequence[nodes.Collector]: + assert ( + fspath.is_file() + ), "{!r} is not a file (isdir={!r}, exists={!r}, islink={!r})".format( + fspath, fspath.is_dir(), fspath.exists(), fspath.is_symlink() + ) + ihook = self.session.gethookproxy(fspath) + if not self.session.isinitpath(fspath): + if ihook.pytest_ignore_collect(collection_path=fspath, config=self.config): + return () + + if handle_dupes: + keepduplicates = self.config.getoption("keepduplicates") + if not keepduplicates: + duplicate_paths = self.config.pluginmanager._duplicatepaths + if fspath in duplicate_paths: + return () + else: + duplicate_paths.add(fspath) + + return ihook.pytest_collect_file(file_path=fspath, parent=self) # type: ignore[no-any-return] + + def collect(self) -> Iterable[Union[nodes.Item, nodes.Collector]]: + this_path = self.path.parent + init_module = this_path / "__init__.py" + if init_module.is_file() and path_matches_patterns( + init_module, self.config.getini("python_files") + ): + yield Module.from_parent(self, path=init_module) + pkg_prefixes: Set[Path] = set() + for direntry in visit(str(this_path), recurse=self._recurse): + path = Path(direntry.path) + + # We will visit our own __init__.py file, in which case we skip it. + if direntry.is_file(): + if direntry.name == "__init__.py" and path.parent == this_path: + continue + + parts_ = parts(direntry.path) + if any( + str(pkg_prefix) in parts_ and pkg_prefix / "__init__.py" != path + for pkg_prefix in pkg_prefixes + ): + continue + + if direntry.is_file(): + yield from self._collectfile(path) + elif not direntry.is_dir(): + # Broken symlink or invalid/missing file. + continue + elif path.joinpath("__init__.py").is_file(): + pkg_prefixes.add(path) + + +def _call_with_optional_argument(func, arg) -> None: + """Call the given function with the given argument if func accepts one argument, otherwise + calls func without arguments.""" + arg_count = func.__code__.co_argcount + if inspect.ismethod(func): + arg_count -= 1 + if arg_count: + func(arg) + else: + func() + + +def _get_first_non_fixture_func(obj: object, names: Iterable[str]) -> Optional[object]: + """Return the attribute from the given object to be used as a setup/teardown + xunit-style function, but only if not marked as a fixture to avoid calling it twice.""" + for name in names: + meth: Optional[object] = getattr(obj, name, None) + if meth is not None and fixtures.getfixturemarker(meth) is None: + return meth + return None + + +class Class(PyCollector): + """Collector for test methods.""" + + @classmethod + def from_parent(cls, parent, *, name, obj=None, **kw): + """The public constructor.""" + return super().from_parent(name=name, parent=parent, **kw) + + def newinstance(self): + return self.obj() + + def collect(self) -> Iterable[Union[nodes.Item, nodes.Collector]]: + if not safe_getattr(self.obj, "__test__", True): + return [] + if hasinit(self.obj): + assert self.parent is not None + self.warn( + PytestCollectionWarning( + "cannot collect test class %r because it has a " + "__init__ constructor (from: %s)" + % (self.obj.__name__, self.parent.nodeid) + ) + ) + return [] + elif hasnew(self.obj): + assert self.parent is not None + self.warn( + PytestCollectionWarning( + "cannot collect test class %r because it has a " + "__new__ constructor (from: %s)" + % (self.obj.__name__, self.parent.nodeid) + ) + ) + return [] + + self._inject_setup_class_fixture() + self._inject_setup_method_fixture() + + self.session._fixturemanager.parsefactories(self.newinstance(), self.nodeid) + + return super().collect() + + def _inject_setup_class_fixture(self) -> None: + """Inject a hidden autouse, class scoped fixture into the collected class object + that invokes setup_class/teardown_class if either or both are available. + + Using a fixture to invoke this methods ensures we play nicely and unsurprisingly with + other fixtures (#517). + """ + setup_class = _get_first_non_fixture_func(self.obj, ("setup_class",)) + teardown_class = getattr(self.obj, "teardown_class", None) + if setup_class is None and teardown_class is None: + return + + @fixtures.fixture( + autouse=True, + scope="class", + # Use a unique name to speed up lookup. + name=f"_xunit_setup_class_fixture_{self.obj.__qualname__}", + ) + def xunit_setup_class_fixture(cls) -> Generator[None, None, None]: + if setup_class is not None: + func = getimfunc(setup_class) + _call_with_optional_argument(func, self.obj) + yield + if teardown_class is not None: + func = getimfunc(teardown_class) + _call_with_optional_argument(func, self.obj) + + self.obj.__pytest_setup_class = xunit_setup_class_fixture + + def _inject_setup_method_fixture(self) -> None: + """Inject a hidden autouse, function scoped fixture into the collected class object + that invokes setup_method/teardown_method if either or both are available. + + Using a fixture to invoke these methods ensures we play nicely and unsurprisingly with + other fixtures (#517). + """ + has_nose = self.config.pluginmanager.has_plugin("nose") + setup_name = "setup_method" + setup_method = _get_first_non_fixture_func(self.obj, (setup_name,)) + emit_nose_setup_warning = False + if setup_method is None and has_nose: + setup_name = "setup" + emit_nose_setup_warning = True + setup_method = _get_first_non_fixture_func(self.obj, (setup_name,)) + teardown_name = "teardown_method" + teardown_method = getattr(self.obj, teardown_name, None) + emit_nose_teardown_warning = False + if teardown_method is None and has_nose: + teardown_name = "teardown" + emit_nose_teardown_warning = True + teardown_method = getattr(self.obj, teardown_name, None) + if setup_method is None and teardown_method is None: + return + + @fixtures.fixture( + autouse=True, + scope="function", + # Use a unique name to speed up lookup. + name=f"_xunit_setup_method_fixture_{self.obj.__qualname__}", + ) + def xunit_setup_method_fixture(self, request) -> Generator[None, None, None]: + method = request.function + if setup_method is not None: + func = getattr(self, setup_name) + _call_with_optional_argument(func, method) + if emit_nose_setup_warning: + warnings.warn( + NOSE_SUPPORT_METHOD.format( + nodeid=request.node.nodeid, method="setup" + ), + stacklevel=2, + ) + yield + if teardown_method is not None: + func = getattr(self, teardown_name) + _call_with_optional_argument(func, method) + if emit_nose_teardown_warning: + warnings.warn( + NOSE_SUPPORT_METHOD.format( + nodeid=request.node.nodeid, method="teardown" + ), + stacklevel=2, + ) + + self.obj.__pytest_setup_method = xunit_setup_method_fixture + + +class InstanceDummy: + """Instance used to be a node type between Class and Function. It has been + removed in pytest 7.0. Some plugins exist which reference `pytest.Instance` + only to ignore it; this dummy class keeps them working. This will be removed + in pytest 8.""" + + +def __getattr__(name: str) -> object: + if name == "Instance": + warnings.warn(INSTANCE_COLLECTOR, 2) + return InstanceDummy + raise AttributeError(f"module {__name__} has no attribute {name}") + + +def hasinit(obj: object) -> bool: + init: object = getattr(obj, "__init__", None) + if init: + return init != object.__init__ + return False + + +def hasnew(obj: object) -> bool: + new: object = getattr(obj, "__new__", None) + if new: + return new != object.__new__ + return False + + +@final +@attr.s(frozen=True, auto_attribs=True, slots=True) +class IdMaker: + """Make IDs for a parametrization.""" + + # The argnames of the parametrization. + argnames: Sequence[str] + # The ParameterSets of the parametrization. + parametersets: Sequence[ParameterSet] + # Optionally, a user-provided callable to make IDs for parameters in a + # ParameterSet. + idfn: Optional[Callable[[Any], Optional[object]]] + # Optionally, explicit IDs for ParameterSets by index. + ids: Optional[Sequence[Optional[object]]] + # Optionally, the pytest config. + # Used for controlling ASCII escaping, and for calling the + # :hook:`pytest_make_parametrize_id` hook. + config: Optional[Config] + # Optionally, the ID of the node being parametrized. + # Used only for clearer error messages. + nodeid: Optional[str] + # Optionally, the ID of the function being parametrized. + # Used only for clearer error messages. + func_name: Optional[str] + + def make_unique_parameterset_ids(self) -> List[str]: + """Make a unique identifier for each ParameterSet, that may be used to + identify the parametrization in a node ID. + + Format is -...-[counter], where prm_x_token is + - user-provided id, if given + - else an id derived from the value, applicable for certain types + - else + The counter suffix is appended only in case a string wouldn't be unique + otherwise. + """ + resolved_ids = list(self._resolve_ids()) + # All IDs must be unique! + if len(resolved_ids) != len(set(resolved_ids)): + # Record the number of occurrences of each ID. + id_counts = Counter(resolved_ids) + # Map the ID to its next suffix. + id_suffixes: Dict[str, int] = defaultdict(int) + # Suffix non-unique IDs to make them unique. + for index, id in enumerate(resolved_ids): + if id_counts[id] > 1: + resolved_ids[index] = f"{id}{id_suffixes[id]}" + id_suffixes[id] += 1 + return resolved_ids + + def _resolve_ids(self) -> Iterable[str]: + """Resolve IDs for all ParameterSets (may contain duplicates).""" + for idx, parameterset in enumerate(self.parametersets): + if parameterset.id is not None: + # ID provided directly - pytest.param(..., id="...") + yield parameterset.id + elif self.ids and idx < len(self.ids) and self.ids[idx] is not None: + # ID provided in the IDs list - parametrize(..., ids=[...]). + yield self._idval_from_value_required(self.ids[idx], idx) + else: + # ID not provided - generate it. + yield "-".join( + self._idval(val, argname, idx) + for val, argname in zip(parameterset.values, self.argnames) + ) + + def _idval(self, val: object, argname: str, idx: int) -> str: + """Make an ID for a parameter in a ParameterSet.""" + idval = self._idval_from_function(val, argname, idx) + if idval is not None: + return idval + idval = self._idval_from_hook(val, argname) + if idval is not None: + return idval + idval = self._idval_from_value(val) + if idval is not None: + return idval + return self._idval_from_argname(argname, idx) + + def _idval_from_function( + self, val: object, argname: str, idx: int + ) -> Optional[str]: + """Try to make an ID for a parameter in a ParameterSet using the + user-provided id callable, if given.""" + if self.idfn is None: + return None + try: + id = self.idfn(val) + except Exception as e: + prefix = f"{self.nodeid}: " if self.nodeid is not None else "" + msg = "error raised while trying to determine id of parameter '{}' at position {}" + msg = prefix + msg.format(argname, idx) + raise ValueError(msg) from e + if id is None: + return None + return self._idval_from_value(id) + + def _idval_from_hook(self, val: object, argname: str) -> Optional[str]: + """Try to make an ID for a parameter in a ParameterSet by calling the + :hook:`pytest_make_parametrize_id` hook.""" + if self.config: + id: Optional[str] = self.config.hook.pytest_make_parametrize_id( + config=self.config, val=val, argname=argname + ) + return id + return None + + def _idval_from_value(self, val: object) -> Optional[str]: + """Try to make an ID for a parameter in a ParameterSet from its value, + if the value type is supported.""" + if isinstance(val, STRING_TYPES): + return _ascii_escaped_by_config(val, self.config) + elif val is None or isinstance(val, (float, int, bool, complex)): + return str(val) + elif isinstance(val, Pattern): + return ascii_escaped(val.pattern) + elif val is NOTSET: + # Fallback to default. Note that NOTSET is an enum.Enum. + pass + elif isinstance(val, enum.Enum): + return str(val) + elif isinstance(getattr(val, "__name__", None), str): + # Name of a class, function, module, etc. + name: str = getattr(val, "__name__") + return name + return None + + def _idval_from_value_required(self, val: object, idx: int) -> str: + """Like _idval_from_value(), but fails if the type is not supported.""" + id = self._idval_from_value(val) + if id is not None: + return id + + # Fail. + if self.func_name is not None: + prefix = f"In {self.func_name}: " + elif self.nodeid is not None: + prefix = f"In {self.nodeid}: " + else: + prefix = "" + msg = ( + f"{prefix}ids contains unsupported value {saferepr(val)} (type: {type(val)!r}) at index {idx}. " + "Supported types are: str, bytes, int, float, complex, bool, enum, regex or anything with a __name__." + ) + fail(msg, pytrace=False) + + @staticmethod + def _idval_from_argname(argname: str, idx: int) -> str: + """Make an ID for a parameter in a ParameterSet from the argument name + and the index of the ParameterSet.""" + return str(argname) + str(idx) + + +@final +@attr.s(frozen=True, slots=True, auto_attribs=True) +class CallSpec2: + """A planned parameterized invocation of a test function. + + Calculated during collection for a given test function's Metafunc. + Once collection is over, each callspec is turned into a single Item + and stored in item.callspec. + """ + + # arg name -> arg value which will be passed to the parametrized test + # function (direct parameterization). + funcargs: Dict[str, object] = attr.Factory(dict) + # arg name -> arg value which will be passed to a fixture of the same name + # (indirect parametrization). + params: Dict[str, object] = attr.Factory(dict) + # arg name -> arg index. + indices: Dict[str, int] = attr.Factory(dict) + # Used for sorting parametrized resources. + _arg2scope: Dict[str, Scope] = attr.Factory(dict) + # Parts which will be added to the item's name in `[..]` separated by "-". + _idlist: List[str] = attr.Factory(list) + # Marks which will be applied to the item. + marks: List[Mark] = attr.Factory(list) + + def setmulti( + self, + *, + valtypes: Mapping[str, "Literal['params', 'funcargs']"], + argnames: Iterable[str], + valset: Iterable[object], + id: str, + marks: Iterable[Union[Mark, MarkDecorator]], + scope: Scope, + param_index: int, + ) -> "CallSpec2": + funcargs = self.funcargs.copy() + params = self.params.copy() + indices = self.indices.copy() + arg2scope = self._arg2scope.copy() + for arg, val in zip(argnames, valset): + if arg in params or arg in funcargs: + raise ValueError(f"duplicate {arg!r}") + valtype_for_arg = valtypes[arg] + if valtype_for_arg == "params": + params[arg] = val + elif valtype_for_arg == "funcargs": + funcargs[arg] = val + else: + assert_never(valtype_for_arg) + indices[arg] = param_index + arg2scope[arg] = scope + return CallSpec2( + funcargs=funcargs, + params=params, + arg2scope=arg2scope, + indices=indices, + idlist=[*self._idlist, id], + marks=[*self.marks, *normalize_mark_list(marks)], + ) + + def getparam(self, name: str) -> object: + try: + return self.params[name] + except KeyError as e: + raise ValueError(name) from e + + @property + def id(self) -> str: + return "-".join(self._idlist) + + +@final +class Metafunc: + """Objects passed to the :hook:`pytest_generate_tests` hook. + + They help to inspect a test function and to generate tests according to + test configuration or values specified in the class or module where a + test function is defined. + """ + + def __init__( + self, + definition: "FunctionDefinition", + fixtureinfo: fixtures.FuncFixtureInfo, + config: Config, + cls=None, + module=None, + *, + _ispytest: bool = False, + ) -> None: + check_ispytest(_ispytest) + + #: Access to the underlying :class:`_pytest.python.FunctionDefinition`. + self.definition = definition + + #: Access to the :class:`pytest.Config` object for the test session. + self.config = config + + #: The module object where the test function is defined in. + self.module = module + + #: Underlying Python test function. + self.function = definition.obj + + #: Set of fixture names required by the test function. + self.fixturenames = fixtureinfo.names_closure + + #: Class object where the test function is defined in or ``None``. + self.cls = cls + + self._arg2fixturedefs = fixtureinfo.name2fixturedefs + + # Result of parametrize(). + self._calls: List[CallSpec2] = [] + + def parametrize( + self, + argnames: Union[str, Sequence[str]], + argvalues: Iterable[Union[ParameterSet, Sequence[object], object]], + indirect: Union[bool, Sequence[str]] = False, + ids: Optional[ + Union[Iterable[Optional[object]], Callable[[Any], Optional[object]]] + ] = None, + scope: "Optional[_ScopeName]" = None, + *, + _param_mark: Optional[Mark] = None, + ) -> None: + """Add new invocations to the underlying test function using the list + of argvalues for the given argnames. Parametrization is performed + during the collection phase. If you need to setup expensive resources + see about setting indirect to do it rather than at test setup time. + + Can be called multiple times, in which case each call parametrizes all + previous parametrizations, e.g. + + :: + + unparametrized: t + parametrize ["x", "y"]: t[x], t[y] + parametrize [1, 2]: t[x-1], t[x-2], t[y-1], t[y-2] + + :param argnames: + A comma-separated string denoting one or more argument names, or + a list/tuple of argument strings. + + :param argvalues: + The list of argvalues determines how often a test is invoked with + different argument values. + + If only one argname was specified argvalues is a list of values. + If N argnames were specified, argvalues must be a list of + N-tuples, where each tuple-element specifies a value for its + respective argname. + + :param indirect: + A list of arguments' names (subset of argnames) or a boolean. + If True the list contains all names from the argnames. Each + argvalue corresponding to an argname in this list will + be passed as request.param to its respective argname fixture + function so that it can perform more expensive setups during the + setup phase of a test rather than at collection time. + + :param ids: + Sequence of (or generator for) ids for ``argvalues``, + or a callable to return part of the id for each argvalue. + + With sequences (and generators like ``itertools.count()``) the + returned ids should be of type ``string``, ``int``, ``float``, + ``bool``, or ``None``. + They are mapped to the corresponding index in ``argvalues``. + ``None`` means to use the auto-generated id. + + If it is a callable it will be called for each entry in + ``argvalues``, and the return value is used as part of the + auto-generated id for the whole set (where parts are joined with + dashes ("-")). + This is useful to provide more specific ids for certain items, e.g. + dates. Returning ``None`` will use an auto-generated id. + + If no ids are provided they will be generated automatically from + the argvalues. + + :param scope: + If specified it denotes the scope of the parameters. + The scope is used for grouping tests by parameter instances. + It will also override any fixture-function defined scope, allowing + to set a dynamic scope using test context or configuration. + """ + argnames, parametersets = ParameterSet._for_parametrize( + argnames, + argvalues, + self.function, + self.config, + nodeid=self.definition.nodeid, + ) + del argvalues + + if "request" in argnames: + fail( + "'request' is a reserved name and cannot be used in @pytest.mark.parametrize", + pytrace=False, + ) + + if scope is not None: + scope_ = Scope.from_user( + scope, descr=f"parametrize() call in {self.function.__name__}" + ) + else: + scope_ = _find_parametrized_scope(argnames, self._arg2fixturedefs, indirect) + + self._validate_if_using_arg_names(argnames, indirect) + + arg_values_types = self._resolve_arg_value_types(argnames, indirect) + + # Use any already (possibly) generated ids with parametrize Marks. + if _param_mark and _param_mark._param_ids_from: + generated_ids = _param_mark._param_ids_from._param_ids_generated + if generated_ids is not None: + ids = generated_ids + + ids = self._resolve_parameter_set_ids( + argnames, ids, parametersets, nodeid=self.definition.nodeid + ) + + # Store used (possibly generated) ids with parametrize Marks. + if _param_mark and _param_mark._param_ids_from and generated_ids is None: + object.__setattr__(_param_mark._param_ids_from, "_param_ids_generated", ids) + + # Create the new calls: if we are parametrize() multiple times (by applying the decorator + # more than once) then we accumulate those calls generating the cartesian product + # of all calls. + newcalls = [] + for callspec in self._calls or [CallSpec2()]: + for param_index, (param_id, param_set) in enumerate( + zip(ids, parametersets) + ): + newcallspec = callspec.setmulti( + valtypes=arg_values_types, + argnames=argnames, + valset=param_set.values, + id=param_id, + marks=param_set.marks, + scope=scope_, + param_index=param_index, + ) + newcalls.append(newcallspec) + self._calls = newcalls + + def _resolve_parameter_set_ids( + self, + argnames: Sequence[str], + ids: Optional[ + Union[Iterable[Optional[object]], Callable[[Any], Optional[object]]] + ], + parametersets: Sequence[ParameterSet], + nodeid: str, + ) -> List[str]: + """Resolve the actual ids for the given parameter sets. + + :param argnames: + Argument names passed to ``parametrize()``. + :param ids: + The `ids` parameter of the ``parametrize()`` call (see docs). + :param parametersets: + The parameter sets, each containing a set of values corresponding + to ``argnames``. + :param nodeid str: + The nodeid of the definition item that generated this + parametrization. + :returns: + List with ids for each parameter set given. + """ + if ids is None: + idfn = None + ids_ = None + elif callable(ids): + idfn = ids + ids_ = None + else: + idfn = None + ids_ = self._validate_ids(ids, parametersets, self.function.__name__) + id_maker = IdMaker( + argnames, + parametersets, + idfn, + ids_, + self.config, + nodeid=nodeid, + func_name=self.function.__name__, + ) + return id_maker.make_unique_parameterset_ids() + + def _validate_ids( + self, + ids: Iterable[Optional[object]], + parametersets: Sequence[ParameterSet], + func_name: str, + ) -> List[Optional[object]]: + try: + num_ids = len(ids) # type: ignore[arg-type] + except TypeError: + try: + iter(ids) + except TypeError as e: + raise TypeError("ids must be a callable or an iterable") from e + num_ids = len(parametersets) + + # num_ids == 0 is a special case: https://github.com/pytest-dev/pytest/issues/1849 + if num_ids != len(parametersets) and num_ids != 0: + msg = "In {}: {} parameter sets specified, with different number of ids: {}" + fail(msg.format(func_name, len(parametersets), num_ids), pytrace=False) + + return list(itertools.islice(ids, num_ids)) + + def _resolve_arg_value_types( + self, + argnames: Sequence[str], + indirect: Union[bool, Sequence[str]], + ) -> Dict[str, "Literal['params', 'funcargs']"]: + """Resolve if each parametrized argument must be considered a + parameter to a fixture or a "funcarg" to the function, based on the + ``indirect`` parameter of the parametrized() call. + + :param List[str] argnames: List of argument names passed to ``parametrize()``. + :param indirect: Same as the ``indirect`` parameter of ``parametrize()``. + :rtype: Dict[str, str] + A dict mapping each arg name to either: + * "params" if the argname should be the parameter of a fixture of the same name. + * "funcargs" if the argname should be a parameter to the parametrized test function. + """ + if isinstance(indirect, bool): + valtypes: Dict[str, Literal["params", "funcargs"]] = dict.fromkeys( + argnames, "params" if indirect else "funcargs" + ) + elif isinstance(indirect, Sequence): + valtypes = dict.fromkeys(argnames, "funcargs") + for arg in indirect: + if arg not in argnames: + fail( + "In {}: indirect fixture '{}' doesn't exist".format( + self.function.__name__, arg + ), + pytrace=False, + ) + valtypes[arg] = "params" + else: + fail( + "In {func}: expected Sequence or boolean for indirect, got {type}".format( + type=type(indirect).__name__, func=self.function.__name__ + ), + pytrace=False, + ) + return valtypes + + def _validate_if_using_arg_names( + self, + argnames: Sequence[str], + indirect: Union[bool, Sequence[str]], + ) -> None: + """Check if all argnames are being used, by default values, or directly/indirectly. + + :param List[str] argnames: List of argument names passed to ``parametrize()``. + :param indirect: Same as the ``indirect`` parameter of ``parametrize()``. + :raises ValueError: If validation fails. + """ + default_arg_names = set(get_default_arg_names(self.function)) + func_name = self.function.__name__ + for arg in argnames: + if arg not in self.fixturenames: + if arg in default_arg_names: + fail( + "In {}: function already takes an argument '{}' with a default value".format( + func_name, arg + ), + pytrace=False, + ) + else: + if isinstance(indirect, Sequence): + name = "fixture" if arg in indirect else "argument" + else: + name = "fixture" if indirect else "argument" + fail( + f"In {func_name}: function uses no {name} '{arg}'", + pytrace=False, + ) + + +def _find_parametrized_scope( + argnames: Sequence[str], + arg2fixturedefs: Mapping[str, Sequence[fixtures.FixtureDef[object]]], + indirect: Union[bool, Sequence[str]], +) -> Scope: + """Find the most appropriate scope for a parametrized call based on its arguments. + + When there's at least one direct argument, always use "function" scope. + + When a test function is parametrized and all its arguments are indirect + (e.g. fixtures), return the most narrow scope based on the fixtures used. + + Related to issue #1832, based on code posted by @Kingdread. + """ + if isinstance(indirect, Sequence): + all_arguments_are_fixtures = len(indirect) == len(argnames) + else: + all_arguments_are_fixtures = bool(indirect) + + if all_arguments_are_fixtures: + fixturedefs = arg2fixturedefs or {} + used_scopes = [ + fixturedef[0]._scope + for name, fixturedef in fixturedefs.items() + if name in argnames + ] + # Takes the most narrow scope from used fixtures. + return min(used_scopes, default=Scope.Function) + + return Scope.Function + + +def _ascii_escaped_by_config(val: Union[str, bytes], config: Optional[Config]) -> str: + if config is None: + escape_option = False + else: + escape_option = config.getini( + "disable_test_id_escaping_and_forfeit_all_rights_to_community_support" + ) + # TODO: If escaping is turned off and the user passes bytes, + # will return a bytes. For now we ignore this but the + # code *probably* doesn't handle this case. + return val if escape_option else ascii_escaped(val) # type: ignore + + +def _pretty_fixture_path(func) -> str: + cwd = Path.cwd() + loc = Path(getlocation(func, str(cwd))) + prefix = Path("...", "_pytest") + try: + return str(prefix / loc.relative_to(_PYTEST_DIR)) + except ValueError: + return bestrelpath(cwd, loc) + + +def show_fixtures_per_test(config): + from _pytest.main import wrap_session + + return wrap_session(config, _show_fixtures_per_test) + + +def _show_fixtures_per_test(config: Config, session: Session) -> None: + import _pytest.config + + session.perform_collect() + curdir = Path.cwd() + tw = _pytest.config.create_terminal_writer(config) + verbose = config.getvalue("verbose") + + def get_best_relpath(func) -> str: + loc = getlocation(func, str(curdir)) + return bestrelpath(curdir, Path(loc)) + + def write_fixture(fixture_def: fixtures.FixtureDef[object]) -> None: + argname = fixture_def.argname + if verbose <= 0 and argname.startswith("_"): + return + prettypath = _pretty_fixture_path(fixture_def.func) + tw.write(f"{argname}", green=True) + tw.write(f" -- {prettypath}", yellow=True) + tw.write("\n") + fixture_doc = inspect.getdoc(fixture_def.func) + if fixture_doc: + write_docstring( + tw, fixture_doc.split("\n\n")[0] if verbose <= 0 else fixture_doc + ) + else: + tw.line(" no docstring available", red=True) + + def write_item(item: nodes.Item) -> None: + # Not all items have _fixtureinfo attribute. + info: Optional[FuncFixtureInfo] = getattr(item, "_fixtureinfo", None) + if info is None or not info.name2fixturedefs: + # This test item does not use any fixtures. + return + tw.line() + tw.sep("-", f"fixtures used by {item.name}") + # TODO: Fix this type ignore. + tw.sep("-", f"({get_best_relpath(item.function)})") # type: ignore[attr-defined] + # dict key not used in loop but needed for sorting. + for _, fixturedefs in sorted(info.name2fixturedefs.items()): + assert fixturedefs is not None + if not fixturedefs: + continue + # Last item is expected to be the one used by the test item. + write_fixture(fixturedefs[-1]) + + for session_item in session.items: + write_item(session_item) + + +def showfixtures(config: Config) -> Union[int, ExitCode]: + from _pytest.main import wrap_session + + return wrap_session(config, _showfixtures_main) + + +def _showfixtures_main(config: Config, session: Session) -> None: + import _pytest.config + + session.perform_collect() + curdir = Path.cwd() + tw = _pytest.config.create_terminal_writer(config) + verbose = config.getvalue("verbose") + + fm = session._fixturemanager + + available = [] + seen: Set[Tuple[str, str]] = set() + + for argname, fixturedefs in fm._arg2fixturedefs.items(): + assert fixturedefs is not None + if not fixturedefs: + continue + for fixturedef in fixturedefs: + loc = getlocation(fixturedef.func, str(curdir)) + if (fixturedef.argname, loc) in seen: + continue + seen.add((fixturedef.argname, loc)) + available.append( + ( + len(fixturedef.baseid), + fixturedef.func.__module__, + _pretty_fixture_path(fixturedef.func), + fixturedef.argname, + fixturedef, + ) + ) + + available.sort() + currentmodule = None + for baseid, module, prettypath, argname, fixturedef in available: + if currentmodule != module: + if not module.startswith("_pytest."): + tw.line() + tw.sep("-", f"fixtures defined from {module}") + currentmodule = module + if verbose <= 0 and argname.startswith("_"): + continue + tw.write(f"{argname}", green=True) + if fixturedef.scope != "function": + tw.write(" [%s scope]" % fixturedef.scope, cyan=True) + tw.write(f" -- {prettypath}", yellow=True) + tw.write("\n") + doc = inspect.getdoc(fixturedef.func) + if doc: + write_docstring(tw, doc.split("\n\n")[0] if verbose <= 0 else doc) + else: + tw.line(" no docstring available", red=True) + tw.line() + + +def write_docstring(tw: TerminalWriter, doc: str, indent: str = " ") -> None: + for line in doc.split("\n"): + tw.line(indent + line) + + +class Function(PyobjMixin, nodes.Item): + """An Item responsible for setting up and executing a Python test function. + + :param name: + The full function name, including any decorations like those + added by parametrization (``my_func[my_param]``). + :param parent: + The parent Node. + :param config: + The pytest Config object. + :param callspec: + If given, this is function has been parametrized and the callspec contains + meta information about the parametrization. + :param callobj: + If given, the object which will be called when the Function is invoked, + otherwise the callobj will be obtained from ``parent`` using ``originalname``. + :param keywords: + Keywords bound to the function object for "-k" matching. + :param session: + The pytest Session object. + :param fixtureinfo: + Fixture information already resolved at this fixture node.. + :param originalname: + The attribute name to use for accessing the underlying function object. + Defaults to ``name``. Set this if name is different from the original name, + for example when it contains decorations like those added by parametrization + (``my_func[my_param]``). + """ + + # Disable since functions handle it themselves. + _ALLOW_MARKERS = False + + def __init__( + self, + name: str, + parent, + config: Optional[Config] = None, + callspec: Optional[CallSpec2] = None, + callobj=NOTSET, + keywords: Optional[Mapping[str, Any]] = None, + session: Optional[Session] = None, + fixtureinfo: Optional[FuncFixtureInfo] = None, + originalname: Optional[str] = None, + ) -> None: + super().__init__(name, parent, config=config, session=session) + + if callobj is not NOTSET: + self.obj = callobj + + #: Original function name, without any decorations (for example + #: parametrization adds a ``"[...]"`` suffix to function names), used to access + #: the underlying function object from ``parent`` (in case ``callobj`` is not given + #: explicitly). + #: + #: .. versionadded:: 3.0 + self.originalname = originalname or name + + # Note: when FunctionDefinition is introduced, we should change ``originalname`` + # to a readonly property that returns FunctionDefinition.name. + + self.own_markers.extend(get_unpacked_marks(self.obj)) + if callspec: + self.callspec = callspec + self.own_markers.extend(callspec.marks) + + # todo: this is a hell of a hack + # https://github.com/pytest-dev/pytest/issues/4569 + # Note: the order of the updates is important here; indicates what + # takes priority (ctor argument over function attributes over markers). + # Take own_markers only; NodeKeywords handles parent traversal on its own. + self.keywords.update((mark.name, mark) for mark in self.own_markers) + self.keywords.update(self.obj.__dict__) + if keywords: + self.keywords.update(keywords) + + if fixtureinfo is None: + fixtureinfo = self.session._fixturemanager.getfixtureinfo( + self, self.obj, self.cls, funcargs=True + ) + self._fixtureinfo: FuncFixtureInfo = fixtureinfo + self.fixturenames = fixtureinfo.names_closure + self._initrequest() + + @classmethod + def from_parent(cls, parent, **kw): # todo: determine sound type limitations + """The public constructor.""" + return super().from_parent(parent=parent, **kw) + + def _initrequest(self) -> None: + self.funcargs: Dict[str, object] = {} + self._request = fixtures.FixtureRequest(self, _ispytest=True) + + @property + def function(self): + """Underlying python 'function' object.""" + return getimfunc(self.obj) + + def _getobj(self): + assert self.parent is not None + if isinstance(self.parent, Class): + # Each Function gets a fresh class instance. + parent_obj = self.parent.newinstance() + else: + parent_obj = self.parent.obj # type: ignore[attr-defined] + return getattr(parent_obj, self.originalname) + + @property + def _pyfuncitem(self): + """(compatonly) for code expecting pytest-2.2 style request objects.""" + return self + + def runtest(self) -> None: + """Execute the underlying test function.""" + self.ihook.pytest_pyfunc_call(pyfuncitem=self) + + def setup(self) -> None: + self._request._fillfixtures() + + def _prunetraceback(self, excinfo: ExceptionInfo[BaseException]) -> None: + if hasattr(self, "_obj") and not self.config.getoption("fulltrace", False): + code = _pytest._code.Code.from_function(get_real_func(self.obj)) + path, firstlineno = code.path, code.firstlineno + traceback = excinfo.traceback + ntraceback = traceback.cut(path=path, firstlineno=firstlineno) + if ntraceback == traceback: + ntraceback = ntraceback.cut(path=path) + if ntraceback == traceback: + ntraceback = ntraceback.filter(filter_traceback) + if not ntraceback: + ntraceback = traceback + + excinfo.traceback = ntraceback.filter() + # issue364: mark all but first and last frames to + # only show a single-line message for each frame. + if self.config.getoption("tbstyle", "auto") == "auto": + if len(excinfo.traceback) > 2: + for entry in excinfo.traceback[1:-1]: + entry.set_repr_style("short") + + # TODO: Type ignored -- breaks Liskov Substitution. + def repr_failure( # type: ignore[override] + self, + excinfo: ExceptionInfo[BaseException], + ) -> Union[str, TerminalRepr]: + style = self.config.getoption("tbstyle", "auto") + if style == "auto": + style = "long" + return self._repr_failure_py(excinfo, style=style) + + +class FunctionDefinition(Function): + """ + This class is a step gap solution until we evolve to have actual function definition nodes + and manage to get rid of ``metafunc``. + """ + + def runtest(self) -> None: + raise RuntimeError("function definitions are not supposed to be run as tests") + + setup = runtest diff --git a/utils/python-venv/Lib/site-packages/_pytest/python_api.py b/utils/python-venv/Lib/site-packages/_pytest/python_api.py new file mode 100644 index 0000000..515d437 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/python_api.py @@ -0,0 +1,993 @@ +import math +import pprint +from collections.abc import Collection +from collections.abc import Sized +from decimal import Decimal +from numbers import Complex +from types import TracebackType +from typing import Any +from typing import Callable +from typing import cast +from typing import Generic +from typing import List +from typing import Mapping +from typing import Optional +from typing import Pattern +from typing import Sequence +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import TypeVar +from typing import Union + +if TYPE_CHECKING: + from numpy import ndarray + + +import _pytest._code +from _pytest.compat import final +from _pytest.compat import STRING_TYPES +from _pytest.compat import overload +from _pytest.outcomes import fail + + +def _non_numeric_type_error(value, at: Optional[str]) -> TypeError: + at_str = f" at {at}" if at else "" + return TypeError( + "cannot make approximate comparisons to non-numeric values: {!r} {}".format( + value, at_str + ) + ) + + +def _compare_approx( + full_object: object, + message_data: Sequence[Tuple[str, str, str]], + number_of_elements: int, + different_ids: Sequence[object], + max_abs_diff: float, + max_rel_diff: float, +) -> List[str]: + message_list = list(message_data) + message_list.insert(0, ("Index", "Obtained", "Expected")) + max_sizes = [0, 0, 0] + for index, obtained, expected in message_list: + max_sizes[0] = max(max_sizes[0], len(index)) + max_sizes[1] = max(max_sizes[1], len(obtained)) + max_sizes[2] = max(max_sizes[2], len(expected)) + explanation = [ + f"comparison failed. Mismatched elements: {len(different_ids)} / {number_of_elements}:", + f"Max absolute difference: {max_abs_diff}", + f"Max relative difference: {max_rel_diff}", + ] + [ + f"{indexes:<{max_sizes[0]}} | {obtained:<{max_sizes[1]}} | {expected:<{max_sizes[2]}}" + for indexes, obtained, expected in message_list + ] + return explanation + + +# builtin pytest.approx helper + + +class ApproxBase: + """Provide shared utilities for making approximate comparisons between + numbers or sequences of numbers.""" + + # Tell numpy to use our `__eq__` operator instead of its. + __array_ufunc__ = None + __array_priority__ = 100 + + def __init__(self, expected, rel=None, abs=None, nan_ok: bool = False) -> None: + __tracebackhide__ = True + self.expected = expected + self.abs = abs + self.rel = rel + self.nan_ok = nan_ok + self._check_type() + + def __repr__(self) -> str: + raise NotImplementedError + + def _repr_compare(self, other_side: Any) -> List[str]: + return [ + "comparison failed", + f"Obtained: {other_side}", + f"Expected: {self}", + ] + + def __eq__(self, actual) -> bool: + return all( + a == self._approx_scalar(x) for a, x in self._yield_comparisons(actual) + ) + + def __bool__(self): + __tracebackhide__ = True + raise AssertionError( + "approx() is not supported in a boolean context.\nDid you mean: `assert a == approx(b)`?" + ) + + # Ignore type because of https://github.com/python/mypy/issues/4266. + __hash__ = None # type: ignore + + def __ne__(self, actual) -> bool: + return not (actual == self) + + def _approx_scalar(self, x) -> "ApproxScalar": + if isinstance(x, Decimal): + return ApproxDecimal(x, rel=self.rel, abs=self.abs, nan_ok=self.nan_ok) + return ApproxScalar(x, rel=self.rel, abs=self.abs, nan_ok=self.nan_ok) + + def _yield_comparisons(self, actual): + """Yield all the pairs of numbers to be compared. + + This is used to implement the `__eq__` method. + """ + raise NotImplementedError + + def _check_type(self) -> None: + """Raise a TypeError if the expected value is not a valid type.""" + # This is only a concern if the expected value is a sequence. In every + # other case, the approx() function ensures that the expected value has + # a numeric type. For this reason, the default is to do nothing. The + # classes that deal with sequences should reimplement this method to + # raise if there are any non-numeric elements in the sequence. + + +def _recursive_sequence_map(f, x): + """Recursively map a function over a sequence of arbitrary depth""" + if isinstance(x, (list, tuple)): + seq_type = type(x) + return seq_type(_recursive_sequence_map(f, xi) for xi in x) + else: + return f(x) + + +class ApproxNumpy(ApproxBase): + """Perform approximate comparisons where the expected value is numpy array.""" + + def __repr__(self) -> str: + list_scalars = _recursive_sequence_map( + self._approx_scalar, self.expected.tolist() + ) + return f"approx({list_scalars!r})" + + def _repr_compare(self, other_side: "ndarray") -> List[str]: + import itertools + import math + + def get_value_from_nested_list( + nested_list: List[Any], nd_index: Tuple[Any, ...] + ) -> Any: + """ + Helper function to get the value out of a nested list, given an n-dimensional index. + This mimics numpy's indexing, but for raw nested python lists. + """ + value: Any = nested_list + for i in nd_index: + value = value[i] + return value + + np_array_shape = self.expected.shape + approx_side_as_seq = _recursive_sequence_map( + self._approx_scalar, self.expected.tolist() + ) + + if np_array_shape != other_side.shape: + return [ + "Impossible to compare arrays with different shapes.", + f"Shapes: {np_array_shape} and {other_side.shape}", + ] + + number_of_elements = self.expected.size + max_abs_diff = -math.inf + max_rel_diff = -math.inf + different_ids = [] + for index in itertools.product(*(range(i) for i in np_array_shape)): + approx_value = get_value_from_nested_list(approx_side_as_seq, index) + other_value = get_value_from_nested_list(other_side, index) + if approx_value != other_value: + abs_diff = abs(approx_value.expected - other_value) + max_abs_diff = max(max_abs_diff, abs_diff) + if other_value == 0.0: + max_rel_diff = math.inf + else: + max_rel_diff = max(max_rel_diff, abs_diff / abs(other_value)) + different_ids.append(index) + + message_data = [ + ( + str(index), + str(get_value_from_nested_list(other_side, index)), + str(get_value_from_nested_list(approx_side_as_seq, index)), + ) + for index in different_ids + ] + return _compare_approx( + self.expected, + message_data, + number_of_elements, + different_ids, + max_abs_diff, + max_rel_diff, + ) + + def __eq__(self, actual) -> bool: + import numpy as np + + # self.expected is supposed to always be an array here. + + if not np.isscalar(actual): + try: + actual = np.asarray(actual) + except Exception as e: + raise TypeError(f"cannot compare '{actual}' to numpy.ndarray") from e + + if not np.isscalar(actual) and actual.shape != self.expected.shape: + return False + + return super().__eq__(actual) + + def _yield_comparisons(self, actual): + import numpy as np + + # `actual` can either be a numpy array or a scalar, it is treated in + # `__eq__` before being passed to `ApproxBase.__eq__`, which is the + # only method that calls this one. + + if np.isscalar(actual): + for i in np.ndindex(self.expected.shape): + yield actual, self.expected[i].item() + else: + for i in np.ndindex(self.expected.shape): + yield actual[i].item(), self.expected[i].item() + + +class ApproxMapping(ApproxBase): + """Perform approximate comparisons where the expected value is a mapping + with numeric values (the keys can be anything).""" + + def __repr__(self) -> str: + return "approx({!r})".format( + {k: self._approx_scalar(v) for k, v in self.expected.items()} + ) + + def _repr_compare(self, other_side: Mapping[object, float]) -> List[str]: + import math + + approx_side_as_map = { + k: self._approx_scalar(v) for k, v in self.expected.items() + } + + number_of_elements = len(approx_side_as_map) + max_abs_diff = -math.inf + max_rel_diff = -math.inf + different_ids = [] + for (approx_key, approx_value), other_value in zip( + approx_side_as_map.items(), other_side.values() + ): + if approx_value != other_value: + max_abs_diff = max( + max_abs_diff, abs(approx_value.expected - other_value) + ) + max_rel_diff = max( + max_rel_diff, + abs((approx_value.expected - other_value) / approx_value.expected), + ) + different_ids.append(approx_key) + + message_data = [ + (str(key), str(other_side[key]), str(approx_side_as_map[key])) + for key in different_ids + ] + + return _compare_approx( + self.expected, + message_data, + number_of_elements, + different_ids, + max_abs_diff, + max_rel_diff, + ) + + def __eq__(self, actual) -> bool: + try: + if set(actual.keys()) != set(self.expected.keys()): + return False + except AttributeError: + return False + + return super().__eq__(actual) + + def _yield_comparisons(self, actual): + for k in self.expected.keys(): + yield actual[k], self.expected[k] + + def _check_type(self) -> None: + __tracebackhide__ = True + for key, value in self.expected.items(): + if isinstance(value, type(self.expected)): + msg = "pytest.approx() does not support nested dictionaries: key={!r} value={!r}\n full mapping={}" + raise TypeError(msg.format(key, value, pprint.pformat(self.expected))) + + +class ApproxSequenceLike(ApproxBase): + """Perform approximate comparisons where the expected value is a sequence of numbers.""" + + def __repr__(self) -> str: + seq_type = type(self.expected) + if seq_type not in (tuple, list): + seq_type = list + return "approx({!r})".format( + seq_type(self._approx_scalar(x) for x in self.expected) + ) + + def _repr_compare(self, other_side: Sequence[float]) -> List[str]: + import math + + if len(self.expected) != len(other_side): + return [ + "Impossible to compare lists with different sizes.", + f"Lengths: {len(self.expected)} and {len(other_side)}", + ] + + approx_side_as_map = _recursive_sequence_map(self._approx_scalar, self.expected) + + number_of_elements = len(approx_side_as_map) + max_abs_diff = -math.inf + max_rel_diff = -math.inf + different_ids = [] + for i, (approx_value, other_value) in enumerate( + zip(approx_side_as_map, other_side) + ): + if approx_value != other_value: + abs_diff = abs(approx_value.expected - other_value) + max_abs_diff = max(max_abs_diff, abs_diff) + if other_value == 0.0: + max_rel_diff = math.inf + else: + max_rel_diff = max(max_rel_diff, abs_diff / abs(other_value)) + different_ids.append(i) + + message_data = [ + (str(i), str(other_side[i]), str(approx_side_as_map[i])) + for i in different_ids + ] + + return _compare_approx( + self.expected, + message_data, + number_of_elements, + different_ids, + max_abs_diff, + max_rel_diff, + ) + + def __eq__(self, actual) -> bool: + try: + if len(actual) != len(self.expected): + return False + except TypeError: + return False + return super().__eq__(actual) + + def _yield_comparisons(self, actual): + return zip(actual, self.expected) + + def _check_type(self) -> None: + __tracebackhide__ = True + for index, x in enumerate(self.expected): + if isinstance(x, type(self.expected)): + msg = "pytest.approx() does not support nested data structures: {!r} at index {}\n full sequence: {}" + raise TypeError(msg.format(x, index, pprint.pformat(self.expected))) + + +class ApproxScalar(ApproxBase): + """Perform approximate comparisons where the expected value is a single number.""" + + # Using Real should be better than this Union, but not possible yet: + # https://github.com/python/typeshed/pull/3108 + DEFAULT_ABSOLUTE_TOLERANCE: Union[float, Decimal] = 1e-12 + DEFAULT_RELATIVE_TOLERANCE: Union[float, Decimal] = 1e-6 + + def __repr__(self) -> str: + """Return a string communicating both the expected value and the + tolerance for the comparison being made. + + For example, ``1.0 ± 1e-6``, ``(3+4j) ± 5e-6 ∠ ±180°``. + """ + # Don't show a tolerance for values that aren't compared using + # tolerances, i.e. non-numerics and infinities. Need to call abs to + # handle complex numbers, e.g. (inf + 1j). + if (not isinstance(self.expected, (Complex, Decimal))) or math.isinf( + abs(self.expected) # type: ignore[arg-type] + ): + return str(self.expected) + + # If a sensible tolerance can't be calculated, self.tolerance will + # raise a ValueError. In this case, display '???'. + try: + vetted_tolerance = f"{self.tolerance:.1e}" + if ( + isinstance(self.expected, Complex) + and self.expected.imag + and not math.isinf(self.tolerance) + ): + vetted_tolerance += " ∠ ±180°" + except ValueError: + vetted_tolerance = "???" + + return f"{self.expected} ± {vetted_tolerance}" + + def __eq__(self, actual) -> bool: + """Return whether the given value is equal to the expected value + within the pre-specified tolerance.""" + asarray = _as_numpy_array(actual) + if asarray is not None: + # Call ``__eq__()`` manually to prevent infinite-recursion with + # numpy<1.13. See #3748. + return all(self.__eq__(a) for a in asarray.flat) + + # Short-circuit exact equality. + if actual == self.expected: + return True + + # If either type is non-numeric, fall back to strict equality. + # NB: we need Complex, rather than just Number, to ensure that __abs__, + # __sub__, and __float__ are defined. + if not ( + isinstance(self.expected, (Complex, Decimal)) + and isinstance(actual, (Complex, Decimal)) + ): + return False + + # Allow the user to control whether NaNs are considered equal to each + # other or not. The abs() calls are for compatibility with complex + # numbers. + if math.isnan(abs(self.expected)): # type: ignore[arg-type] + return self.nan_ok and math.isnan(abs(actual)) # type: ignore[arg-type] + + # Infinity shouldn't be approximately equal to anything but itself, but + # if there's a relative tolerance, it will be infinite and infinity + # will seem approximately equal to everything. The equal-to-itself + # case would have been short circuited above, so here we can just + # return false if the expected value is infinite. The abs() call is + # for compatibility with complex numbers. + if math.isinf(abs(self.expected)): # type: ignore[arg-type] + return False + + # Return true if the two numbers are within the tolerance. + result: bool = abs(self.expected - actual) <= self.tolerance + return result + + # Ignore type because of https://github.com/python/mypy/issues/4266. + __hash__ = None # type: ignore + + @property + def tolerance(self): + """Return the tolerance for the comparison. + + This could be either an absolute tolerance or a relative tolerance, + depending on what the user specified or which would be larger. + """ + + def set_default(x, default): + return x if x is not None else default + + # Figure out what the absolute tolerance should be. ``self.abs`` is + # either None or a value specified by the user. + absolute_tolerance = set_default(self.abs, self.DEFAULT_ABSOLUTE_TOLERANCE) + + if absolute_tolerance < 0: + raise ValueError( + f"absolute tolerance can't be negative: {absolute_tolerance}" + ) + if math.isnan(absolute_tolerance): + raise ValueError("absolute tolerance can't be NaN.") + + # If the user specified an absolute tolerance but not a relative one, + # just return the absolute tolerance. + if self.rel is None: + if self.abs is not None: + return absolute_tolerance + + # Figure out what the relative tolerance should be. ``self.rel`` is + # either None or a value specified by the user. This is done after + # we've made sure the user didn't ask for an absolute tolerance only, + # because we don't want to raise errors about the relative tolerance if + # we aren't even going to use it. + relative_tolerance = set_default( + self.rel, self.DEFAULT_RELATIVE_TOLERANCE + ) * abs(self.expected) + + if relative_tolerance < 0: + raise ValueError( + f"relative tolerance can't be negative: {relative_tolerance}" + ) + if math.isnan(relative_tolerance): + raise ValueError("relative tolerance can't be NaN.") + + # Return the larger of the relative and absolute tolerances. + return max(relative_tolerance, absolute_tolerance) + + +class ApproxDecimal(ApproxScalar): + """Perform approximate comparisons where the expected value is a Decimal.""" + + DEFAULT_ABSOLUTE_TOLERANCE = Decimal("1e-12") + DEFAULT_RELATIVE_TOLERANCE = Decimal("1e-6") + + +def approx(expected, rel=None, abs=None, nan_ok: bool = False) -> ApproxBase: + """Assert that two numbers (or two ordered sequences of numbers) are equal to each other + within some tolerance. + + Due to the :doc:`python:tutorial/floatingpoint`, numbers that we + would intuitively expect to be equal are not always so:: + + >>> 0.1 + 0.2 == 0.3 + False + + This problem is commonly encountered when writing tests, e.g. when making + sure that floating-point values are what you expect them to be. One way to + deal with this problem is to assert that two floating-point numbers are + equal to within some appropriate tolerance:: + + >>> abs((0.1 + 0.2) - 0.3) < 1e-6 + True + + However, comparisons like this are tedious to write and difficult to + understand. Furthermore, absolute comparisons like the one above are + usually discouraged because there's no tolerance that works well for all + situations. ``1e-6`` is good for numbers around ``1``, but too small for + very big numbers and too big for very small ones. It's better to express + the tolerance as a fraction of the expected value, but relative comparisons + like that are even more difficult to write correctly and concisely. + + The ``approx`` class performs floating-point comparisons using a syntax + that's as intuitive as possible:: + + >>> from pytest import approx + >>> 0.1 + 0.2 == approx(0.3) + True + + The same syntax also works for ordered sequences of numbers:: + + >>> (0.1 + 0.2, 0.2 + 0.4) == approx((0.3, 0.6)) + True + + ``numpy`` arrays:: + + >>> import numpy as np # doctest: +SKIP + >>> np.array([0.1, 0.2]) + np.array([0.2, 0.4]) == approx(np.array([0.3, 0.6])) # doctest: +SKIP + True + + And for a ``numpy`` array against a scalar:: + + >>> import numpy as np # doctest: +SKIP + >>> np.array([0.1, 0.2]) + np.array([0.2, 0.1]) == approx(0.3) # doctest: +SKIP + True + + Only ordered sequences are supported, because ``approx`` needs + to infer the relative position of the sequences without ambiguity. This means + ``sets`` and other unordered sequences are not supported. + + Finally, dictionary *values* can also be compared:: + + >>> {'a': 0.1 + 0.2, 'b': 0.2 + 0.4} == approx({'a': 0.3, 'b': 0.6}) + True + + The comparison will be true if both mappings have the same keys and their + respective values match the expected tolerances. + + **Tolerances** + + By default, ``approx`` considers numbers within a relative tolerance of + ``1e-6`` (i.e. one part in a million) of its expected value to be equal. + This treatment would lead to surprising results if the expected value was + ``0.0``, because nothing but ``0.0`` itself is relatively close to ``0.0``. + To handle this case less surprisingly, ``approx`` also considers numbers + within an absolute tolerance of ``1e-12`` of its expected value to be + equal. Infinity and NaN are special cases. Infinity is only considered + equal to itself, regardless of the relative tolerance. NaN is not + considered equal to anything by default, but you can make it be equal to + itself by setting the ``nan_ok`` argument to True. (This is meant to + facilitate comparing arrays that use NaN to mean "no data".) + + Both the relative and absolute tolerances can be changed by passing + arguments to the ``approx`` constructor:: + + >>> 1.0001 == approx(1) + False + >>> 1.0001 == approx(1, rel=1e-3) + True + >>> 1.0001 == approx(1, abs=1e-3) + True + + If you specify ``abs`` but not ``rel``, the comparison will not consider + the relative tolerance at all. In other words, two numbers that are within + the default relative tolerance of ``1e-6`` will still be considered unequal + if they exceed the specified absolute tolerance. If you specify both + ``abs`` and ``rel``, the numbers will be considered equal if either + tolerance is met:: + + >>> 1 + 1e-8 == approx(1) + True + >>> 1 + 1e-8 == approx(1, abs=1e-12) + False + >>> 1 + 1e-8 == approx(1, rel=1e-6, abs=1e-12) + True + + You can also use ``approx`` to compare nonnumeric types, or dicts and + sequences containing nonnumeric types, in which case it falls back to + strict equality. This can be useful for comparing dicts and sequences that + can contain optional values:: + + >>> {"required": 1.0000005, "optional": None} == approx({"required": 1, "optional": None}) + True + >>> [None, 1.0000005] == approx([None,1]) + True + >>> ["foo", 1.0000005] == approx([None,1]) + False + + If you're thinking about using ``approx``, then you might want to know how + it compares to other good ways of comparing floating-point numbers. All of + these algorithms are based on relative and absolute tolerances and should + agree for the most part, but they do have meaningful differences: + + - ``math.isclose(a, b, rel_tol=1e-9, abs_tol=0.0)``: True if the relative + tolerance is met w.r.t. either ``a`` or ``b`` or if the absolute + tolerance is met. Because the relative tolerance is calculated w.r.t. + both ``a`` and ``b``, this test is symmetric (i.e. neither ``a`` nor + ``b`` is a "reference value"). You have to specify an absolute tolerance + if you want to compare to ``0.0`` because there is no tolerance by + default. More information: :py:func:`math.isclose`. + + - ``numpy.isclose(a, b, rtol=1e-5, atol=1e-8)``: True if the difference + between ``a`` and ``b`` is less that the sum of the relative tolerance + w.r.t. ``b`` and the absolute tolerance. Because the relative tolerance + is only calculated w.r.t. ``b``, this test is asymmetric and you can + think of ``b`` as the reference value. Support for comparing sequences + is provided by :py:func:`numpy.allclose`. More information: + :std:doc:`numpy:reference/generated/numpy.isclose`. + + - ``unittest.TestCase.assertAlmostEqual(a, b)``: True if ``a`` and ``b`` + are within an absolute tolerance of ``1e-7``. No relative tolerance is + considered , so this function is not appropriate for very large or very + small numbers. Also, it's only available in subclasses of ``unittest.TestCase`` + and it's ugly because it doesn't follow PEP8. More information: + :py:meth:`unittest.TestCase.assertAlmostEqual`. + + - ``a == pytest.approx(b, rel=1e-6, abs=1e-12)``: True if the relative + tolerance is met w.r.t. ``b`` or if the absolute tolerance is met. + Because the relative tolerance is only calculated w.r.t. ``b``, this test + is asymmetric and you can think of ``b`` as the reference value. In the + special case that you explicitly specify an absolute tolerance but not a + relative tolerance, only the absolute tolerance is considered. + + .. note:: + + ``approx`` can handle numpy arrays, but we recommend the + specialised test helpers in :std:doc:`numpy:reference/routines.testing` + if you need support for comparisons, NaNs, or ULP-based tolerances. + + To match strings using regex, you can use + `Matches `_ + from the + `re_assert package `_. + + .. warning:: + + .. versionchanged:: 3.2 + + In order to avoid inconsistent behavior, :py:exc:`TypeError` is + raised for ``>``, ``>=``, ``<`` and ``<=`` comparisons. + The example below illustrates the problem:: + + assert approx(0.1) > 0.1 + 1e-10 # calls approx(0.1).__gt__(0.1 + 1e-10) + assert 0.1 + 1e-10 > approx(0.1) # calls approx(0.1).__lt__(0.1 + 1e-10) + + In the second example one expects ``approx(0.1).__le__(0.1 + 1e-10)`` + to be called. But instead, ``approx(0.1).__lt__(0.1 + 1e-10)`` is used to + comparison. This is because the call hierarchy of rich comparisons + follows a fixed behavior. More information: :py:meth:`object.__ge__` + + .. versionchanged:: 3.7.1 + ``approx`` raises ``TypeError`` when it encounters a dict value or + sequence element of nonnumeric type. + + .. versionchanged:: 6.1.0 + ``approx`` falls back to strict equality for nonnumeric types instead + of raising ``TypeError``. + """ + + # Delegate the comparison to a class that knows how to deal with the type + # of the expected value (e.g. int, float, list, dict, numpy.array, etc). + # + # The primary responsibility of these classes is to implement ``__eq__()`` + # and ``__repr__()``. The former is used to actually check if some + # "actual" value is equivalent to the given expected value within the + # allowed tolerance. The latter is used to show the user the expected + # value and tolerance, in the case that a test failed. + # + # The actual logic for making approximate comparisons can be found in + # ApproxScalar, which is used to compare individual numbers. All of the + # other Approx classes eventually delegate to this class. The ApproxBase + # class provides some convenient methods and overloads, but isn't really + # essential. + + __tracebackhide__ = True + + if isinstance(expected, Decimal): + cls: Type[ApproxBase] = ApproxDecimal + elif isinstance(expected, Mapping): + cls = ApproxMapping + elif _is_numpy_array(expected): + expected = _as_numpy_array(expected) + cls = ApproxNumpy + elif ( + hasattr(expected, "__getitem__") + and isinstance(expected, Sized) + # Type ignored because the error is wrong -- not unreachable. + and not isinstance(expected, STRING_TYPES) # type: ignore[unreachable] + ): + cls = ApproxSequenceLike + elif ( + isinstance(expected, Collection) + # Type ignored because the error is wrong -- not unreachable. + and not isinstance(expected, STRING_TYPES) # type: ignore[unreachable] + ): + msg = f"pytest.approx() only supports ordered sequences, but got: {repr(expected)}" + raise TypeError(msg) + else: + cls = ApproxScalar + + return cls(expected, rel, abs, nan_ok) + + +def _is_numpy_array(obj: object) -> bool: + """ + Return true if the given object is implicitly convertible to ndarray, + and numpy is already imported. + """ + return _as_numpy_array(obj) is not None + + +def _as_numpy_array(obj: object) -> Optional["ndarray"]: + """ + Return an ndarray if the given object is implicitly convertible to ndarray, + and numpy is already imported, otherwise None. + """ + import sys + + np: Any = sys.modules.get("numpy") + if np is not None: + # avoid infinite recursion on numpy scalars, which have __array__ + if np.isscalar(obj): + return None + elif isinstance(obj, np.ndarray): + return obj + elif hasattr(obj, "__array__") or hasattr("obj", "__array_interface__"): + return np.asarray(obj) + return None + + +# builtin pytest.raises helper + +E = TypeVar("E", bound=BaseException) + + +@overload +def raises( + expected_exception: Union[Type[E], Tuple[Type[E], ...]], + *, + match: Optional[Union[str, Pattern[str]]] = ..., +) -> "RaisesContext[E]": + ... + + +@overload +def raises( # noqa: F811 + expected_exception: Union[Type[E], Tuple[Type[E], ...]], + func: Callable[..., Any], + *args: Any, + **kwargs: Any, +) -> _pytest._code.ExceptionInfo[E]: + ... + + +def raises( # noqa: F811 + expected_exception: Union[Type[E], Tuple[Type[E], ...]], *args: Any, **kwargs: Any +) -> Union["RaisesContext[E]", _pytest._code.ExceptionInfo[E]]: + r"""Assert that a code block/function call raises an exception. + + :param typing.Type[E] | typing.Tuple[typing.Type[E], ...] expected_exception: + The excpected exception type, or a tuple if one of multiple possible + exception types are excepted. + :kwparam str | typing.Pattern[str] | None match: + If specified, a string containing a regular expression, + or a regular expression object, that is tested against the string + representation of the exception using :func:`re.search`. + + To match a literal string that may contain :ref:`special characters + `, the pattern can first be escaped with :func:`re.escape`. + + (This is only used when :py:func:`pytest.raises` is used as a context manager, + and passed through to the function otherwise. + When using :py:func:`pytest.raises` as a function, you can use: + ``pytest.raises(Exc, func, match="passed on").match("my pattern")``.) + + .. currentmodule:: _pytest._code + + Use ``pytest.raises`` as a context manager, which will capture the exception of the given + type:: + + >>> import pytest + >>> with pytest.raises(ZeroDivisionError): + ... 1/0 + + If the code block does not raise the expected exception (``ZeroDivisionError`` in the example + above), or no exception at all, the check will fail instead. + + You can also use the keyword argument ``match`` to assert that the + exception matches a text or regex:: + + >>> with pytest.raises(ValueError, match='must be 0 or None'): + ... raise ValueError("value must be 0 or None") + + >>> with pytest.raises(ValueError, match=r'must be \d+$'): + ... raise ValueError("value must be 42") + + The context manager produces an :class:`ExceptionInfo` object which can be used to inspect the + details of the captured exception:: + + >>> with pytest.raises(ValueError) as exc_info: + ... raise ValueError("value must be 42") + >>> assert exc_info.type is ValueError + >>> assert exc_info.value.args[0] == "value must be 42" + + .. note:: + + When using ``pytest.raises`` as a context manager, it's worthwhile to + note that normal context manager rules apply and that the exception + raised *must* be the final line in the scope of the context manager. + Lines of code after that, within the scope of the context manager will + not be executed. For example:: + + >>> value = 15 + >>> with pytest.raises(ValueError) as exc_info: + ... if value > 10: + ... raise ValueError("value must be <= 10") + ... assert exc_info.type is ValueError # this will not execute + + Instead, the following approach must be taken (note the difference in + scope):: + + >>> with pytest.raises(ValueError) as exc_info: + ... if value > 10: + ... raise ValueError("value must be <= 10") + ... + >>> assert exc_info.type is ValueError + + **Using with** ``pytest.mark.parametrize`` + + When using :ref:`pytest.mark.parametrize ref` + it is possible to parametrize tests such that + some runs raise an exception and others do not. + + See :ref:`parametrizing_conditional_raising` for an example. + + **Legacy form** + + It is possible to specify a callable by passing a to-be-called lambda:: + + >>> raises(ZeroDivisionError, lambda: 1/0) + + + or you can specify an arbitrary callable with arguments:: + + >>> def f(x): return 1/x + ... + >>> raises(ZeroDivisionError, f, 0) + + >>> raises(ZeroDivisionError, f, x=0) + + + The form above is fully supported but discouraged for new code because the + context manager form is regarded as more readable and less error-prone. + + .. note:: + Similar to caught exception objects in Python, explicitly clearing + local references to returned ``ExceptionInfo`` objects can + help the Python interpreter speed up its garbage collection. + + Clearing those references breaks a reference cycle + (``ExceptionInfo`` --> caught exception --> frame stack raising + the exception --> current frame stack --> local variables --> + ``ExceptionInfo``) which makes Python keep all objects referenced + from that cycle (including all local variables in the current + frame) alive until the next cyclic garbage collection run. + More detailed information can be found in the official Python + documentation for :ref:`the try statement `. + """ + __tracebackhide__ = True + + if not expected_exception: + raise ValueError( + f"Expected an exception type or a tuple of exception types, but got `{expected_exception!r}`. " + f"Raising exceptions is already understood as failing the test, so you don't need " + f"any special code to say 'this should never raise an exception'." + ) + if isinstance(expected_exception, type): + excepted_exceptions: Tuple[Type[E], ...] = (expected_exception,) + else: + excepted_exceptions = expected_exception + for exc in excepted_exceptions: + if not isinstance(exc, type) or not issubclass(exc, BaseException): + msg = "expected exception must be a BaseException type, not {}" # type: ignore[unreachable] + not_a = exc.__name__ if isinstance(exc, type) else type(exc).__name__ + raise TypeError(msg.format(not_a)) + + message = f"DID NOT RAISE {expected_exception}" + + if not args: + match: Optional[Union[str, Pattern[str]]] = kwargs.pop("match", None) + if kwargs: + msg = "Unexpected keyword arguments passed to pytest.raises: " + msg += ", ".join(sorted(kwargs)) + msg += "\nUse context-manager form instead?" + raise TypeError(msg) + return RaisesContext(expected_exception, message, match) + else: + func = args[0] + if not callable(func): + raise TypeError(f"{func!r} object (type: {type(func)}) must be callable") + try: + func(*args[1:], **kwargs) + except expected_exception as e: + # We just caught the exception - there is a traceback. + assert e.__traceback__ is not None + return _pytest._code.ExceptionInfo.from_exc_info( + (type(e), e, e.__traceback__) + ) + fail(message) + + +# This doesn't work with mypy for now. Use fail.Exception instead. +raises.Exception = fail.Exception # type: ignore + + +@final +class RaisesContext(Generic[E]): + def __init__( + self, + expected_exception: Union[Type[E], Tuple[Type[E], ...]], + message: str, + match_expr: Optional[Union[str, Pattern[str]]] = None, + ) -> None: + self.expected_exception = expected_exception + self.message = message + self.match_expr = match_expr + self.excinfo: Optional[_pytest._code.ExceptionInfo[E]] = None + + def __enter__(self) -> _pytest._code.ExceptionInfo[E]: + self.excinfo = _pytest._code.ExceptionInfo.for_later() + return self.excinfo + + def __exit__( + self, + exc_type: Optional[Type[BaseException]], + exc_val: Optional[BaseException], + exc_tb: Optional[TracebackType], + ) -> bool: + __tracebackhide__ = True + if exc_type is None: + fail(self.message) + assert self.excinfo is not None + if not issubclass(exc_type, self.expected_exception): + return False + # Cast to narrow the exception type now that it's verified. + exc_info = cast(Tuple[Type[E], E, TracebackType], (exc_type, exc_val, exc_tb)) + self.excinfo.fill_unfilled(exc_info) + if self.match_expr is not None: + self.excinfo.match(self.match_expr) + return True diff --git a/utils/python-venv/Lib/site-packages/_pytest/python_path.py b/utils/python-venv/Lib/site-packages/_pytest/python_path.py new file mode 100644 index 0000000..cceabbc --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/python_path.py @@ -0,0 +1,24 @@ +import sys + +import pytest +from pytest import Config +from pytest import Parser + + +def pytest_addoption(parser: Parser) -> None: + parser.addini("pythonpath", type="paths", help="Add paths to sys.path", default=[]) + + +@pytest.hookimpl(tryfirst=True) +def pytest_load_initial_conftests(early_config: Config) -> None: + # `pythonpath = a b` will set `sys.path` to `[a, b, x, y, z, ...]` + for path in reversed(early_config.getini("pythonpath")): + sys.path.insert(0, str(path)) + + +@pytest.hookimpl(trylast=True) +def pytest_unconfigure(config: Config) -> None: + for path in config.getini("pythonpath"): + path_str = str(path) + if path_str in sys.path: + sys.path.remove(path_str) diff --git a/utils/python-venv/Lib/site-packages/_pytest/recwarn.py b/utils/python-venv/Lib/site-packages/_pytest/recwarn.py new file mode 100644 index 0000000..d76ea02 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/recwarn.py @@ -0,0 +1,313 @@ +"""Record warnings during test function execution.""" +import re +import warnings +from pprint import pformat +from types import TracebackType +from typing import Any +from typing import Callable +from typing import Generator +from typing import Iterator +from typing import List +from typing import Optional +from typing import Pattern +from typing import Tuple +from typing import Type +from typing import TypeVar +from typing import Union + +from _pytest.compat import final +from _pytest.compat import overload +from _pytest.deprecated import check_ispytest +from _pytest.deprecated import WARNS_NONE_ARG +from _pytest.fixtures import fixture +from _pytest.outcomes import fail + + +T = TypeVar("T") + + +@fixture +def recwarn() -> Generator["WarningsRecorder", None, None]: + """Return a :class:`WarningsRecorder` instance that records all warnings emitted by test functions. + + See https://docs.pytest.org/en/latest/how-to/capture-warnings.html for information + on warning categories. + """ + wrec = WarningsRecorder(_ispytest=True) + with wrec: + warnings.simplefilter("default") + yield wrec + + +@overload +def deprecated_call( + *, match: Optional[Union[str, Pattern[str]]] = ... +) -> "WarningsRecorder": + ... + + +@overload +def deprecated_call( # noqa: F811 + func: Callable[..., T], *args: Any, **kwargs: Any +) -> T: + ... + + +def deprecated_call( # noqa: F811 + func: Optional[Callable[..., Any]] = None, *args: Any, **kwargs: Any +) -> Union["WarningsRecorder", Any]: + """Assert that code produces a ``DeprecationWarning`` or ``PendingDeprecationWarning``. + + This function can be used as a context manager:: + + >>> import warnings + >>> def api_call_v2(): + ... warnings.warn('use v3 of this api', DeprecationWarning) + ... return 200 + + >>> import pytest + >>> with pytest.deprecated_call(): + ... assert api_call_v2() == 200 + + It can also be used by passing a function and ``*args`` and ``**kwargs``, + in which case it will ensure calling ``func(*args, **kwargs)`` produces one of + the warnings types above. The return value is the return value of the function. + + In the context manager form you may use the keyword argument ``match`` to assert + that the warning matches a text or regex. + + The context manager produces a list of :class:`warnings.WarningMessage` objects, + one for each warning raised. + """ + __tracebackhide__ = True + if func is not None: + args = (func,) + args + return warns((DeprecationWarning, PendingDeprecationWarning), *args, **kwargs) + + +@overload +def warns( + expected_warning: Union[Type[Warning], Tuple[Type[Warning], ...]] = ..., + *, + match: Optional[Union[str, Pattern[str]]] = ..., +) -> "WarningsChecker": + ... + + +@overload +def warns( # noqa: F811 + expected_warning: Union[Type[Warning], Tuple[Type[Warning], ...]], + func: Callable[..., T], + *args: Any, + **kwargs: Any, +) -> T: + ... + + +def warns( # noqa: F811 + expected_warning: Union[Type[Warning], Tuple[Type[Warning], ...]] = Warning, + *args: Any, + match: Optional[Union[str, Pattern[str]]] = None, + **kwargs: Any, +) -> Union["WarningsChecker", Any]: + r"""Assert that code raises a particular class of warning. + + Specifically, the parameter ``expected_warning`` can be a warning class or sequence + of warning classes, and the code inside the ``with`` block must issue at least one + warning of that class or classes. + + This helper produces a list of :class:`warnings.WarningMessage` objects, one for + each warning raised (regardless of whether it is an ``expected_warning`` or not). + + This function can be used as a context manager, which will capture all the raised + warnings inside it:: + + >>> import pytest + >>> with pytest.warns(RuntimeWarning): + ... warnings.warn("my warning", RuntimeWarning) + + In the context manager form you may use the keyword argument ``match`` to assert + that the warning matches a text or regex:: + + >>> with pytest.warns(UserWarning, match='must be 0 or None'): + ... warnings.warn("value must be 0 or None", UserWarning) + + >>> with pytest.warns(UserWarning, match=r'must be \d+$'): + ... warnings.warn("value must be 42", UserWarning) + + >>> with pytest.warns(UserWarning, match=r'must be \d+$'): + ... warnings.warn("this is not here", UserWarning) + Traceback (most recent call last): + ... + Failed: DID NOT WARN. No warnings of type ...UserWarning... were emitted... + + **Using with** ``pytest.mark.parametrize`` + + When using :ref:`pytest.mark.parametrize ref` it is possible to parametrize tests + such that some runs raise a warning and others do not. + + This could be achieved in the same way as with exceptions, see + :ref:`parametrizing_conditional_raising` for an example. + + """ + __tracebackhide__ = True + if not args: + if kwargs: + argnames = ", ".join(sorted(kwargs)) + raise TypeError( + f"Unexpected keyword arguments passed to pytest.warns: {argnames}" + "\nUse context-manager form instead?" + ) + return WarningsChecker(expected_warning, match_expr=match, _ispytest=True) + else: + func = args[0] + if not callable(func): + raise TypeError(f"{func!r} object (type: {type(func)}) must be callable") + with WarningsChecker(expected_warning, _ispytest=True): + return func(*args[1:], **kwargs) + + +class WarningsRecorder(warnings.catch_warnings): # type:ignore[type-arg] + """A context manager to record raised warnings. + + Each recorded warning is an instance of :class:`warnings.WarningMessage`. + + Adapted from `warnings.catch_warnings`. + + .. note:: + ``DeprecationWarning`` and ``PendingDeprecationWarning`` are treated + differently; see :ref:`ensuring_function_triggers`. + + """ + + def __init__(self, *, _ispytest: bool = False) -> None: + check_ispytest(_ispytest) + # Type ignored due to the way typeshed handles warnings.catch_warnings. + super().__init__(record=True) # type: ignore[call-arg] + self._entered = False + self._list: List[warnings.WarningMessage] = [] + + @property + def list(self) -> List["warnings.WarningMessage"]: + """The list of recorded warnings.""" + return self._list + + def __getitem__(self, i: int) -> "warnings.WarningMessage": + """Get a recorded warning by index.""" + return self._list[i] + + def __iter__(self) -> Iterator["warnings.WarningMessage"]: + """Iterate through the recorded warnings.""" + return iter(self._list) + + def __len__(self) -> int: + """The number of recorded warnings.""" + return len(self._list) + + def pop(self, cls: Type[Warning] = Warning) -> "warnings.WarningMessage": + """Pop the first recorded warning, raise exception if not exists.""" + for i, w in enumerate(self._list): + if issubclass(w.category, cls): + return self._list.pop(i) + __tracebackhide__ = True + raise AssertionError(f"{cls!r} not found in warning list") + + def clear(self) -> None: + """Clear the list of recorded warnings.""" + self._list[:] = [] + + # Type ignored because it doesn't exactly warnings.catch_warnings.__enter__ + # -- it returns a List but we only emulate one. + def __enter__(self) -> "WarningsRecorder": # type: ignore + if self._entered: + __tracebackhide__ = True + raise RuntimeError(f"Cannot enter {self!r} twice") + _list = super().__enter__() + # record=True means it's None. + assert _list is not None + self._list = _list + warnings.simplefilter("always") + return self + + def __exit__( + self, + exc_type: Optional[Type[BaseException]], + exc_val: Optional[BaseException], + exc_tb: Optional[TracebackType], + ) -> None: + if not self._entered: + __tracebackhide__ = True + raise RuntimeError(f"Cannot exit {self!r} without entering first") + + super().__exit__(exc_type, exc_val, exc_tb) + + # Built-in catch_warnings does not reset entered state so we do it + # manually here for this context manager to become reusable. + self._entered = False + + +@final +class WarningsChecker(WarningsRecorder): + def __init__( + self, + expected_warning: Optional[ + Union[Type[Warning], Tuple[Type[Warning], ...]] + ] = Warning, + match_expr: Optional[Union[str, Pattern[str]]] = None, + *, + _ispytest: bool = False, + ) -> None: + check_ispytest(_ispytest) + super().__init__(_ispytest=True) + + msg = "exceptions must be derived from Warning, not %s" + if expected_warning is None: + warnings.warn(WARNS_NONE_ARG, stacklevel=4) + expected_warning_tup = None + elif isinstance(expected_warning, tuple): + for exc in expected_warning: + if not issubclass(exc, Warning): + raise TypeError(msg % type(exc)) + expected_warning_tup = expected_warning + elif issubclass(expected_warning, Warning): + expected_warning_tup = (expected_warning,) + else: + raise TypeError(msg % type(expected_warning)) + + self.expected_warning = expected_warning_tup + self.match_expr = match_expr + + def __exit__( + self, + exc_type: Optional[Type[BaseException]], + exc_val: Optional[BaseException], + exc_tb: Optional[TracebackType], + ) -> None: + super().__exit__(exc_type, exc_val, exc_tb) + + __tracebackhide__ = True + + def found_str(): + return pformat([record.message for record in self], indent=2) + + # only check if we're not currently handling an exception + if exc_type is None and exc_val is None and exc_tb is None: + if self.expected_warning is not None: + if not any(issubclass(r.category, self.expected_warning) for r in self): + __tracebackhide__ = True + fail( + f"DID NOT WARN. No warnings of type {self.expected_warning} were emitted.\n" + f"The list of emitted warnings is: {found_str()}." + ) + elif self.match_expr is not None: + for r in self: + if issubclass(r.category, self.expected_warning): + if re.compile(self.match_expr).search(str(r.message)): + break + else: + fail( + f"""\ +DID NOT WARN. No warnings of type {self.expected_warning} matching the regex were emitted. + Regex: {self.match_expr} + Emitted warnings: {found_str()}""" + ) diff --git a/utils/python-venv/Lib/site-packages/_pytest/reports.py b/utils/python-venv/Lib/site-packages/_pytest/reports.py new file mode 100644 index 0000000..c35f708 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/reports.py @@ -0,0 +1,603 @@ +import os +from io import StringIO +from pprint import pprint +from typing import Any +from typing import cast +from typing import Dict +from typing import Iterable +from typing import Iterator +from typing import List +from typing import Mapping +from typing import NoReturn +from typing import Optional +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import TypeVar +from typing import Union + +import attr + +from _pytest._code.code import ExceptionChainRepr +from _pytest._code.code import ExceptionInfo +from _pytest._code.code import ExceptionRepr +from _pytest._code.code import ReprEntry +from _pytest._code.code import ReprEntryNative +from _pytest._code.code import ReprExceptionInfo +from _pytest._code.code import ReprFileLocation +from _pytest._code.code import ReprFuncArgs +from _pytest._code.code import ReprLocals +from _pytest._code.code import ReprTraceback +from _pytest._code.code import TerminalRepr +from _pytest._io import TerminalWriter +from _pytest.compat import final +from _pytest.config import Config +from _pytest.nodes import Collector +from _pytest.nodes import Item +from _pytest.outcomes import skip + +if TYPE_CHECKING: + from typing_extensions import Literal + + from _pytest.runner import CallInfo + + +def getworkerinfoline(node): + try: + return node._workerinfocache + except AttributeError: + d = node.workerinfo + ver = "%s.%s.%s" % d["version_info"][:3] + node._workerinfocache = s = "[{}] {} -- Python {} {}".format( + d["id"], d["sysplatform"], ver, d["executable"] + ) + return s + + +_R = TypeVar("_R", bound="BaseReport") + + +class BaseReport: + when: Optional[str] + location: Optional[Tuple[str, Optional[int], str]] + longrepr: Union[ + None, ExceptionInfo[BaseException], Tuple[str, int, str], str, TerminalRepr + ] + sections: List[Tuple[str, str]] + nodeid: str + outcome: "Literal['passed', 'failed', 'skipped']" + + def __init__(self, **kw: Any) -> None: + self.__dict__.update(kw) + + if TYPE_CHECKING: + # Can have arbitrary fields given to __init__(). + def __getattr__(self, key: str) -> Any: + ... + + def toterminal(self, out: TerminalWriter) -> None: + if hasattr(self, "node"): + worker_info = getworkerinfoline(self.node) + if worker_info: + out.line(worker_info) + + longrepr = self.longrepr + if longrepr is None: + return + + if hasattr(longrepr, "toterminal"): + longrepr_terminal = cast(TerminalRepr, longrepr) + longrepr_terminal.toterminal(out) + else: + try: + s = str(longrepr) + except UnicodeEncodeError: + s = "" + out.line(s) + + def get_sections(self, prefix: str) -> Iterator[Tuple[str, str]]: + for name, content in self.sections: + if name.startswith(prefix): + yield prefix, content + + @property + def longreprtext(self) -> str: + """Read-only property that returns the full string representation of + ``longrepr``. + + .. versionadded:: 3.0 + """ + file = StringIO() + tw = TerminalWriter(file) + tw.hasmarkup = False + self.toterminal(tw) + exc = file.getvalue() + return exc.strip() + + @property + def caplog(self) -> str: + """Return captured log lines, if log capturing is enabled. + + .. versionadded:: 3.5 + """ + return "\n".join( + content for (prefix, content) in self.get_sections("Captured log") + ) + + @property + def capstdout(self) -> str: + """Return captured text from stdout, if capturing is enabled. + + .. versionadded:: 3.0 + """ + return "".join( + content for (prefix, content) in self.get_sections("Captured stdout") + ) + + @property + def capstderr(self) -> str: + """Return captured text from stderr, if capturing is enabled. + + .. versionadded:: 3.0 + """ + return "".join( + content for (prefix, content) in self.get_sections("Captured stderr") + ) + + @property + def passed(self) -> bool: + """Whether the outcome is passed.""" + return self.outcome == "passed" + + @property + def failed(self) -> bool: + """Whether the outcome is failed.""" + return self.outcome == "failed" + + @property + def skipped(self) -> bool: + """Whether the outcome is skipped.""" + return self.outcome == "skipped" + + @property + def fspath(self) -> str: + """The path portion of the reported node, as a string.""" + return self.nodeid.split("::")[0] + + @property + def count_towards_summary(self) -> bool: + """**Experimental** Whether this report should be counted towards the + totals shown at the end of the test session: "1 passed, 1 failure, etc". + + .. note:: + + This function is considered **experimental**, so beware that it is subject to changes + even in patch releases. + """ + return True + + @property + def head_line(self) -> Optional[str]: + """**Experimental** The head line shown with longrepr output for this + report, more commonly during traceback representation during + failures:: + + ________ Test.foo ________ + + + In the example above, the head_line is "Test.foo". + + .. note:: + + This function is considered **experimental**, so beware that it is subject to changes + even in patch releases. + """ + if self.location is not None: + fspath, lineno, domain = self.location + return domain + return None + + def _get_verbose_word(self, config: Config): + _category, _short, verbose = config.hook.pytest_report_teststatus( + report=self, config=config + ) + return verbose + + def _to_json(self) -> Dict[str, Any]: + """Return the contents of this report as a dict of builtin entries, + suitable for serialization. + + This was originally the serialize_report() function from xdist (ca03269). + + Experimental method. + """ + return _report_to_json(self) + + @classmethod + def _from_json(cls: Type[_R], reportdict: Dict[str, object]) -> _R: + """Create either a TestReport or CollectReport, depending on the calling class. + + It is the callers responsibility to know which class to pass here. + + This was originally the serialize_report() function from xdist (ca03269). + + Experimental method. + """ + kwargs = _report_kwargs_from_json(reportdict) + return cls(**kwargs) + + +def _report_unserialization_failure( + type_name: str, report_class: Type[BaseReport], reportdict +) -> NoReturn: + url = "https://github.com/pytest-dev/pytest/issues" + stream = StringIO() + pprint("-" * 100, stream=stream) + pprint("INTERNALERROR: Unknown entry type returned: %s" % type_name, stream=stream) + pprint("report_name: %s" % report_class, stream=stream) + pprint(reportdict, stream=stream) + pprint("Please report this bug at %s" % url, stream=stream) + pprint("-" * 100, stream=stream) + raise RuntimeError(stream.getvalue()) + + +@final +class TestReport(BaseReport): + """Basic test report object (also used for setup and teardown calls if + they fail). + + Reports can contain arbitrary extra attributes. + """ + + __test__ = False + + def __init__( + self, + nodeid: str, + location: Tuple[str, Optional[int], str], + keywords: Mapping[str, Any], + outcome: "Literal['passed', 'failed', 'skipped']", + longrepr: Union[ + None, ExceptionInfo[BaseException], Tuple[str, int, str], str, TerminalRepr + ], + when: "Literal['setup', 'call', 'teardown']", + sections: Iterable[Tuple[str, str]] = (), + duration: float = 0, + user_properties: Optional[Iterable[Tuple[str, object]]] = None, + **extra, + ) -> None: + #: Normalized collection nodeid. + self.nodeid = nodeid + + #: A (filesystempath, lineno, domaininfo) tuple indicating the + #: actual location of a test item - it might be different from the + #: collected one e.g. if a method is inherited from a different module. + self.location: Tuple[str, Optional[int], str] = location + + #: A name -> value dictionary containing all keywords and + #: markers associated with a test invocation. + self.keywords: Mapping[str, Any] = keywords + + #: Test outcome, always one of "passed", "failed", "skipped". + self.outcome = outcome + + #: None or a failure representation. + self.longrepr = longrepr + + #: One of 'setup', 'call', 'teardown' to indicate runtest phase. + self.when = when + + #: User properties is a list of tuples (name, value) that holds user + #: defined properties of the test. + self.user_properties = list(user_properties or []) + + #: Tuples of str ``(heading, content)`` with extra information + #: for the test report. Used by pytest to add text captured + #: from ``stdout``, ``stderr``, and intercepted logging events. May + #: be used by other plugins to add arbitrary information to reports. + self.sections = list(sections) + + #: Time it took to run just the test. + self.duration: float = duration + + self.__dict__.update(extra) + + def __repr__(self) -> str: + return "<{} {!r} when={!r} outcome={!r}>".format( + self.__class__.__name__, self.nodeid, self.when, self.outcome + ) + + @classmethod + def from_item_and_call(cls, item: Item, call: "CallInfo[None]") -> "TestReport": + """Create and fill a TestReport with standard item and call info. + + :param item: The item. + :param call: The call info. + """ + when = call.when + # Remove "collect" from the Literal type -- only for collection calls. + assert when != "collect" + duration = call.duration + keywords = {x: 1 for x in item.keywords} + excinfo = call.excinfo + sections = [] + if not call.excinfo: + outcome: Literal["passed", "failed", "skipped"] = "passed" + longrepr: Union[ + None, + ExceptionInfo[BaseException], + Tuple[str, int, str], + str, + TerminalRepr, + ] = None + else: + if not isinstance(excinfo, ExceptionInfo): + outcome = "failed" + longrepr = excinfo + elif isinstance(excinfo.value, skip.Exception): + outcome = "skipped" + r = excinfo._getreprcrash() + if excinfo.value._use_item_location: + path, line = item.reportinfo()[:2] + assert line is not None + longrepr = os.fspath(path), line + 1, r.message + else: + longrepr = (str(r.path), r.lineno, r.message) + else: + outcome = "failed" + if call.when == "call": + longrepr = item.repr_failure(excinfo) + else: # exception in setup or teardown + longrepr = item._repr_failure_py( + excinfo, style=item.config.getoption("tbstyle", "auto") + ) + for rwhen, key, content in item._report_sections: + sections.append((f"Captured {key} {rwhen}", content)) + return cls( + item.nodeid, + item.location, + keywords, + outcome, + longrepr, + when, + sections, + duration, + user_properties=item.user_properties, + ) + + +@final +class CollectReport(BaseReport): + """Collection report object. + + Reports can contain arbitrary extra attributes. + """ + + when = "collect" + + def __init__( + self, + nodeid: str, + outcome: "Literal['passed', 'failed', 'skipped']", + longrepr: Union[ + None, ExceptionInfo[BaseException], Tuple[str, int, str], str, TerminalRepr + ], + result: Optional[List[Union[Item, Collector]]], + sections: Iterable[Tuple[str, str]] = (), + **extra, + ) -> None: + #: Normalized collection nodeid. + self.nodeid = nodeid + + #: Test outcome, always one of "passed", "failed", "skipped". + self.outcome = outcome + + #: None or a failure representation. + self.longrepr = longrepr + + #: The collected items and collection nodes. + self.result = result or [] + + #: Tuples of str ``(heading, content)`` with extra information + #: for the test report. Used by pytest to add text captured + #: from ``stdout``, ``stderr``, and intercepted logging events. May + #: be used by other plugins to add arbitrary information to reports. + self.sections = list(sections) + + self.__dict__.update(extra) + + @property + def location(self): + return (self.fspath, None, self.fspath) + + def __repr__(self) -> str: + return "".format( + self.nodeid, len(self.result), self.outcome + ) + + +class CollectErrorRepr(TerminalRepr): + def __init__(self, msg: str) -> None: + self.longrepr = msg + + def toterminal(self, out: TerminalWriter) -> None: + out.line(self.longrepr, red=True) + + +def pytest_report_to_serializable( + report: Union[CollectReport, TestReport] +) -> Optional[Dict[str, Any]]: + if isinstance(report, (TestReport, CollectReport)): + data = report._to_json() + data["$report_type"] = report.__class__.__name__ + return data + # TODO: Check if this is actually reachable. + return None # type: ignore[unreachable] + + +def pytest_report_from_serializable( + data: Dict[str, Any], +) -> Optional[Union[CollectReport, TestReport]]: + if "$report_type" in data: + if data["$report_type"] == "TestReport": + return TestReport._from_json(data) + elif data["$report_type"] == "CollectReport": + return CollectReport._from_json(data) + assert False, "Unknown report_type unserialize data: {}".format( + data["$report_type"] + ) + return None + + +def _report_to_json(report: BaseReport) -> Dict[str, Any]: + """Return the contents of this report as a dict of builtin entries, + suitable for serialization. + + This was originally the serialize_report() function from xdist (ca03269). + """ + + def serialize_repr_entry( + entry: Union[ReprEntry, ReprEntryNative] + ) -> Dict[str, Any]: + data = attr.asdict(entry) + for key, value in data.items(): + if hasattr(value, "__dict__"): + data[key] = attr.asdict(value) + entry_data = {"type": type(entry).__name__, "data": data} + return entry_data + + def serialize_repr_traceback(reprtraceback: ReprTraceback) -> Dict[str, Any]: + result = attr.asdict(reprtraceback) + result["reprentries"] = [ + serialize_repr_entry(x) for x in reprtraceback.reprentries + ] + return result + + def serialize_repr_crash( + reprcrash: Optional[ReprFileLocation], + ) -> Optional[Dict[str, Any]]: + if reprcrash is not None: + return attr.asdict(reprcrash) + else: + return None + + def serialize_exception_longrepr(rep: BaseReport) -> Dict[str, Any]: + assert rep.longrepr is not None + # TODO: Investigate whether the duck typing is really necessary here. + longrepr = cast(ExceptionRepr, rep.longrepr) + result: Dict[str, Any] = { + "reprcrash": serialize_repr_crash(longrepr.reprcrash), + "reprtraceback": serialize_repr_traceback(longrepr.reprtraceback), + "sections": longrepr.sections, + } + if isinstance(longrepr, ExceptionChainRepr): + result["chain"] = [] + for repr_traceback, repr_crash, description in longrepr.chain: + result["chain"].append( + ( + serialize_repr_traceback(repr_traceback), + serialize_repr_crash(repr_crash), + description, + ) + ) + else: + result["chain"] = None + return result + + d = report.__dict__.copy() + if hasattr(report.longrepr, "toterminal"): + if hasattr(report.longrepr, "reprtraceback") and hasattr( + report.longrepr, "reprcrash" + ): + d["longrepr"] = serialize_exception_longrepr(report) + else: + d["longrepr"] = str(report.longrepr) + else: + d["longrepr"] = report.longrepr + for name in d: + if isinstance(d[name], os.PathLike): + d[name] = os.fspath(d[name]) + elif name == "result": + d[name] = None # for now + return d + + +def _report_kwargs_from_json(reportdict: Dict[str, Any]) -> Dict[str, Any]: + """Return **kwargs that can be used to construct a TestReport or + CollectReport instance. + + This was originally the serialize_report() function from xdist (ca03269). + """ + + def deserialize_repr_entry(entry_data): + data = entry_data["data"] + entry_type = entry_data["type"] + if entry_type == "ReprEntry": + reprfuncargs = None + reprfileloc = None + reprlocals = None + if data["reprfuncargs"]: + reprfuncargs = ReprFuncArgs(**data["reprfuncargs"]) + if data["reprfileloc"]: + reprfileloc = ReprFileLocation(**data["reprfileloc"]) + if data["reprlocals"]: + reprlocals = ReprLocals(data["reprlocals"]["lines"]) + + reprentry: Union[ReprEntry, ReprEntryNative] = ReprEntry( + lines=data["lines"], + reprfuncargs=reprfuncargs, + reprlocals=reprlocals, + reprfileloc=reprfileloc, + style=data["style"], + ) + elif entry_type == "ReprEntryNative": + reprentry = ReprEntryNative(data["lines"]) + else: + _report_unserialization_failure(entry_type, TestReport, reportdict) + return reprentry + + def deserialize_repr_traceback(repr_traceback_dict): + repr_traceback_dict["reprentries"] = [ + deserialize_repr_entry(x) for x in repr_traceback_dict["reprentries"] + ] + return ReprTraceback(**repr_traceback_dict) + + def deserialize_repr_crash(repr_crash_dict: Optional[Dict[str, Any]]): + if repr_crash_dict is not None: + return ReprFileLocation(**repr_crash_dict) + else: + return None + + if ( + reportdict["longrepr"] + and "reprcrash" in reportdict["longrepr"] + and "reprtraceback" in reportdict["longrepr"] + ): + + reprtraceback = deserialize_repr_traceback( + reportdict["longrepr"]["reprtraceback"] + ) + reprcrash = deserialize_repr_crash(reportdict["longrepr"]["reprcrash"]) + if reportdict["longrepr"]["chain"]: + chain = [] + for repr_traceback_data, repr_crash_data, description in reportdict[ + "longrepr" + ]["chain"]: + chain.append( + ( + deserialize_repr_traceback(repr_traceback_data), + deserialize_repr_crash(repr_crash_data), + description, + ) + ) + exception_info: Union[ + ExceptionChainRepr, ReprExceptionInfo + ] = ExceptionChainRepr(chain) + else: + exception_info = ReprExceptionInfo(reprtraceback, reprcrash) + + for section in reportdict["longrepr"]["sections"]: + exception_info.addsection(*section) + reportdict["longrepr"] = exception_info + + return reportdict diff --git a/utils/python-venv/Lib/site-packages/_pytest/runner.py b/utils/python-venv/Lib/site-packages/_pytest/runner.py new file mode 100644 index 0000000..584c322 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/runner.py @@ -0,0 +1,542 @@ +"""Basic collect and runtest protocol implementations.""" +import bdb +import os +import sys +from typing import Callable +from typing import cast +from typing import Dict +from typing import Generic +from typing import List +from typing import Optional +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import TypeVar +from typing import Union + +import attr + +from .reports import BaseReport +from .reports import CollectErrorRepr +from .reports import CollectReport +from .reports import TestReport +from _pytest import timing +from _pytest._code.code import ExceptionChainRepr +from _pytest._code.code import ExceptionInfo +from _pytest._code.code import TerminalRepr +from _pytest.compat import final +from _pytest.config.argparsing import Parser +from _pytest.deprecated import check_ispytest +from _pytest.nodes import Collector +from _pytest.nodes import Item +from _pytest.nodes import Node +from _pytest.outcomes import Exit +from _pytest.outcomes import OutcomeException +from _pytest.outcomes import Skipped +from _pytest.outcomes import TEST_OUTCOME + +if TYPE_CHECKING: + from typing_extensions import Literal + + from _pytest.main import Session + from _pytest.terminal import TerminalReporter + +# +# pytest plugin hooks. + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("terminal reporting", "Reporting", after="general") + group.addoption( + "--durations", + action="store", + type=int, + default=None, + metavar="N", + help="Show N slowest setup/test durations (N=0 for all)", + ) + group.addoption( + "--durations-min", + action="store", + type=float, + default=0.005, + metavar="N", + help="Minimal duration in seconds for inclusion in slowest list. " + "Default: 0.005.", + ) + + +def pytest_terminal_summary(terminalreporter: "TerminalReporter") -> None: + durations = terminalreporter.config.option.durations + durations_min = terminalreporter.config.option.durations_min + verbose = terminalreporter.config.getvalue("verbose") + if durations is None: + return + tr = terminalreporter + dlist = [] + for replist in tr.stats.values(): + for rep in replist: + if hasattr(rep, "duration"): + dlist.append(rep) + if not dlist: + return + dlist.sort(key=lambda x: x.duration, reverse=True) # type: ignore[no-any-return] + if not durations: + tr.write_sep("=", "slowest durations") + else: + tr.write_sep("=", "slowest %s durations" % durations) + dlist = dlist[:durations] + + for i, rep in enumerate(dlist): + if verbose < 2 and rep.duration < durations_min: + tr.write_line("") + tr.write_line( + "(%s durations < %gs hidden. Use -vv to show these durations.)" + % (len(dlist) - i, durations_min) + ) + break + tr.write_line(f"{rep.duration:02.2f}s {rep.when:<8} {rep.nodeid}") + + +def pytest_sessionstart(session: "Session") -> None: + session._setupstate = SetupState() + + +def pytest_sessionfinish(session: "Session") -> None: + session._setupstate.teardown_exact(None) + + +def pytest_runtest_protocol(item: Item, nextitem: Optional[Item]) -> bool: + ihook = item.ihook + ihook.pytest_runtest_logstart(nodeid=item.nodeid, location=item.location) + runtestprotocol(item, nextitem=nextitem) + ihook.pytest_runtest_logfinish(nodeid=item.nodeid, location=item.location) + return True + + +def runtestprotocol( + item: Item, log: bool = True, nextitem: Optional[Item] = None +) -> List[TestReport]: + hasrequest = hasattr(item, "_request") + if hasrequest and not item._request: # type: ignore[attr-defined] + # This only happens if the item is re-run, as is done by + # pytest-rerunfailures. + item._initrequest() # type: ignore[attr-defined] + rep = call_and_report(item, "setup", log) + reports = [rep] + if rep.passed: + if item.config.getoption("setupshow", False): + show_test_item(item) + if not item.config.getoption("setuponly", False): + reports.append(call_and_report(item, "call", log)) + reports.append(call_and_report(item, "teardown", log, nextitem=nextitem)) + # After all teardown hooks have been called + # want funcargs and request info to go away. + if hasrequest: + item._request = False # type: ignore[attr-defined] + item.funcargs = None # type: ignore[attr-defined] + return reports + + +def show_test_item(item: Item) -> None: + """Show test function, parameters and the fixtures of the test item.""" + tw = item.config.get_terminal_writer() + tw.line() + tw.write(" " * 8) + tw.write(item.nodeid) + used_fixtures = sorted(getattr(item, "fixturenames", [])) + if used_fixtures: + tw.write(" (fixtures used: {})".format(", ".join(used_fixtures))) + tw.flush() + + +def pytest_runtest_setup(item: Item) -> None: + _update_current_test_var(item, "setup") + item.session._setupstate.setup(item) + + +def pytest_runtest_call(item: Item) -> None: + _update_current_test_var(item, "call") + try: + del sys.last_type + del sys.last_value + del sys.last_traceback + except AttributeError: + pass + try: + item.runtest() + except Exception as e: + # Store trace info to allow postmortem debugging + sys.last_type = type(e) + sys.last_value = e + assert e.__traceback__ is not None + # Skip *this* frame + sys.last_traceback = e.__traceback__.tb_next + raise e + + +def pytest_runtest_teardown(item: Item, nextitem: Optional[Item]) -> None: + _update_current_test_var(item, "teardown") + item.session._setupstate.teardown_exact(nextitem) + _update_current_test_var(item, None) + + +def _update_current_test_var( + item: Item, when: Optional["Literal['setup', 'call', 'teardown']"] +) -> None: + """Update :envvar:`PYTEST_CURRENT_TEST` to reflect the current item and stage. + + If ``when`` is None, delete ``PYTEST_CURRENT_TEST`` from the environment. + """ + var_name = "PYTEST_CURRENT_TEST" + if when: + value = f"{item.nodeid} ({when})" + # don't allow null bytes on environment variables (see #2644, #2957) + value = value.replace("\x00", "(null)") + os.environ[var_name] = value + else: + os.environ.pop(var_name) + + +def pytest_report_teststatus(report: BaseReport) -> Optional[Tuple[str, str, str]]: + if report.when in ("setup", "teardown"): + if report.failed: + # category, shortletter, verbose-word + return "error", "E", "ERROR" + elif report.skipped: + return "skipped", "s", "SKIPPED" + else: + return "", "", "" + return None + + +# +# Implementation + + +def call_and_report( + item: Item, when: "Literal['setup', 'call', 'teardown']", log: bool = True, **kwds +) -> TestReport: + call = call_runtest_hook(item, when, **kwds) + hook = item.ihook + report: TestReport = hook.pytest_runtest_makereport(item=item, call=call) + if log: + hook.pytest_runtest_logreport(report=report) + if check_interactive_exception(call, report): + hook.pytest_exception_interact(node=item, call=call, report=report) + return report + + +def check_interactive_exception(call: "CallInfo[object]", report: BaseReport) -> bool: + """Check whether the call raised an exception that should be reported as + interactive.""" + if call.excinfo is None: + # Didn't raise. + return False + if hasattr(report, "wasxfail"): + # Exception was expected. + return False + if isinstance(call.excinfo.value, (Skipped, bdb.BdbQuit)): + # Special control flow exception. + return False + return True + + +def call_runtest_hook( + item: Item, when: "Literal['setup', 'call', 'teardown']", **kwds +) -> "CallInfo[None]": + if when == "setup": + ihook: Callable[..., None] = item.ihook.pytest_runtest_setup + elif when == "call": + ihook = item.ihook.pytest_runtest_call + elif when == "teardown": + ihook = item.ihook.pytest_runtest_teardown + else: + assert False, f"Unhandled runtest hook case: {when}" + reraise: Tuple[Type[BaseException], ...] = (Exit,) + if not item.config.getoption("usepdb", False): + reraise += (KeyboardInterrupt,) + return CallInfo.from_call( + lambda: ihook(item=item, **kwds), when=when, reraise=reraise + ) + + +TResult = TypeVar("TResult", covariant=True) + + +@final +@attr.s(repr=False, init=False, auto_attribs=True) +class CallInfo(Generic[TResult]): + """Result/Exception info of a function invocation.""" + + _result: Optional[TResult] + #: The captured exception of the call, if it raised. + excinfo: Optional[ExceptionInfo[BaseException]] + #: The system time when the call started, in seconds since the epoch. + start: float + #: The system time when the call ended, in seconds since the epoch. + stop: float + #: The call duration, in seconds. + duration: float + #: The context of invocation: "collect", "setup", "call" or "teardown". + when: "Literal['collect', 'setup', 'call', 'teardown']" + + def __init__( + self, + result: Optional[TResult], + excinfo: Optional[ExceptionInfo[BaseException]], + start: float, + stop: float, + duration: float, + when: "Literal['collect', 'setup', 'call', 'teardown']", + *, + _ispytest: bool = False, + ) -> None: + check_ispytest(_ispytest) + self._result = result + self.excinfo = excinfo + self.start = start + self.stop = stop + self.duration = duration + self.when = when + + @property + def result(self) -> TResult: + """The return value of the call, if it didn't raise. + + Can only be accessed if excinfo is None. + """ + if self.excinfo is not None: + raise AttributeError(f"{self!r} has no valid result") + # The cast is safe because an exception wasn't raised, hence + # _result has the expected function return type (which may be + # None, that's why a cast and not an assert). + return cast(TResult, self._result) + + @classmethod + def from_call( + cls, + func: "Callable[[], TResult]", + when: "Literal['collect', 'setup', 'call', 'teardown']", + reraise: Optional[ + Union[Type[BaseException], Tuple[Type[BaseException], ...]] + ] = None, + ) -> "CallInfo[TResult]": + """Call func, wrapping the result in a CallInfo. + + :param func: + The function to call. Called without arguments. + :param when: + The phase in which the function is called. + :param reraise: + Exception or exceptions that shall propagate if raised by the + function, instead of being wrapped in the CallInfo. + """ + excinfo = None + start = timing.time() + precise_start = timing.perf_counter() + try: + result: Optional[TResult] = func() + except BaseException: + excinfo = ExceptionInfo.from_current() + if reraise is not None and isinstance(excinfo.value, reraise): + raise + result = None + # use the perf counter + precise_stop = timing.perf_counter() + duration = precise_stop - precise_start + stop = timing.time() + return cls( + start=start, + stop=stop, + duration=duration, + when=when, + result=result, + excinfo=excinfo, + _ispytest=True, + ) + + def __repr__(self) -> str: + if self.excinfo is None: + return f"" + return f"" + + +def pytest_runtest_makereport(item: Item, call: CallInfo[None]) -> TestReport: + return TestReport.from_item_and_call(item, call) + + +def pytest_make_collect_report(collector: Collector) -> CollectReport: + call = CallInfo.from_call(lambda: list(collector.collect()), "collect") + longrepr: Union[None, Tuple[str, int, str], str, TerminalRepr] = None + if not call.excinfo: + outcome: Literal["passed", "skipped", "failed"] = "passed" + else: + skip_exceptions = [Skipped] + unittest = sys.modules.get("unittest") + if unittest is not None: + # Type ignored because unittest is loaded dynamically. + skip_exceptions.append(unittest.SkipTest) # type: ignore + if isinstance(call.excinfo.value, tuple(skip_exceptions)): + outcome = "skipped" + r_ = collector._repr_failure_py(call.excinfo, "line") + assert isinstance(r_, ExceptionChainRepr), repr(r_) + r = r_.reprcrash + assert r + longrepr = (str(r.path), r.lineno, r.message) + else: + outcome = "failed" + errorinfo = collector.repr_failure(call.excinfo) + if not hasattr(errorinfo, "toterminal"): + assert isinstance(errorinfo, str) + errorinfo = CollectErrorRepr(errorinfo) + longrepr = errorinfo + result = call.result if not call.excinfo else None + rep = CollectReport(collector.nodeid, outcome, longrepr, result) + rep.call = call # type: ignore # see collect_one_node + return rep + + +class SetupState: + """Shared state for setting up/tearing down test items or collectors + in a session. + + Suppose we have a collection tree as follows: + + + + + + + + The SetupState maintains a stack. The stack starts out empty: + + [] + + During the setup phase of item1, setup(item1) is called. What it does + is: + + push session to stack, run session.setup() + push mod1 to stack, run mod1.setup() + push item1 to stack, run item1.setup() + + The stack is: + + [session, mod1, item1] + + While the stack is in this shape, it is allowed to add finalizers to + each of session, mod1, item1 using addfinalizer(). + + During the teardown phase of item1, teardown_exact(item2) is called, + where item2 is the next item to item1. What it does is: + + pop item1 from stack, run its teardowns + pop mod1 from stack, run its teardowns + + mod1 was popped because it ended its purpose with item1. The stack is: + + [session] + + During the setup phase of item2, setup(item2) is called. What it does + is: + + push mod2 to stack, run mod2.setup() + push item2 to stack, run item2.setup() + + Stack: + + [session, mod2, item2] + + During the teardown phase of item2, teardown_exact(None) is called, + because item2 is the last item. What it does is: + + pop item2 from stack, run its teardowns + pop mod2 from stack, run its teardowns + pop session from stack, run its teardowns + + Stack: + + [] + + The end! + """ + + def __init__(self) -> None: + # The stack is in the dict insertion order. + self.stack: Dict[ + Node, + Tuple[ + # Node's finalizers. + List[Callable[[], object]], + # Node's exception, if its setup raised. + Optional[Union[OutcomeException, Exception]], + ], + ] = {} + + def setup(self, item: Item) -> None: + """Setup objects along the collector chain to the item.""" + needed_collectors = item.listchain() + + # If a collector fails its setup, fail its entire subtree of items. + # The setup is not retried for each item - the same exception is used. + for col, (finalizers, exc) in self.stack.items(): + assert col in needed_collectors, "previous item was not torn down properly" + if exc: + raise exc + + for col in needed_collectors[len(self.stack) :]: + assert col not in self.stack + # Push onto the stack. + self.stack[col] = ([col.teardown], None) + try: + col.setup() + except TEST_OUTCOME as exc: + self.stack[col] = (self.stack[col][0], exc) + raise exc + + def addfinalizer(self, finalizer: Callable[[], object], node: Node) -> None: + """Attach a finalizer to the given node. + + The node must be currently active in the stack. + """ + assert node and not isinstance(node, tuple) + assert callable(finalizer) + assert node in self.stack, (node, self.stack) + self.stack[node][0].append(finalizer) + + def teardown_exact(self, nextitem: Optional[Item]) -> None: + """Teardown the current stack up until reaching nodes that nextitem + also descends from. + + When nextitem is None (meaning we're at the last item), the entire + stack is torn down. + """ + needed_collectors = nextitem and nextitem.listchain() or [] + exc = None + while self.stack: + if list(self.stack.keys()) == needed_collectors[: len(self.stack)]: + break + node, (finalizers, _) = self.stack.popitem() + while finalizers: + fin = finalizers.pop() + try: + fin() + except TEST_OUTCOME as e: + # XXX Only first exception will be seen by user, + # ideally all should be reported. + if exc is None: + exc = e + if exc: + raise exc + if nextitem is None: + assert not self.stack + + +def collect_one_node(collector: Collector) -> CollectReport: + ihook = collector.ihook + ihook.pytest_collectstart(collector=collector) + rep: CollectReport = ihook.pytest_make_collect_report(collector=collector) + call = rep.__dict__.pop("call", None) + if call and check_interactive_exception(call, rep): + ihook.pytest_exception_interact(node=collector, call=call, report=rep) + return rep diff --git a/utils/python-venv/Lib/site-packages/_pytest/scope.py b/utils/python-venv/Lib/site-packages/_pytest/scope.py new file mode 100644 index 0000000..7a746fb --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/scope.py @@ -0,0 +1,91 @@ +""" +Scope definition and related utilities. + +Those are defined here, instead of in the 'fixtures' module because +their use is spread across many other pytest modules, and centralizing it in 'fixtures' +would cause circular references. + +Also this makes the module light to import, as it should. +""" +from enum import Enum +from functools import total_ordering +from typing import Optional +from typing import TYPE_CHECKING + +if TYPE_CHECKING: + from typing_extensions import Literal + + _ScopeName = Literal["session", "package", "module", "class", "function"] + + +@total_ordering +class Scope(Enum): + """ + Represents one of the possible fixture scopes in pytest. + + Scopes are ordered from lower to higher, that is: + + ->>> higher ->>> + + Function < Class < Module < Package < Session + + <<<- lower <<<- + """ + + # Scopes need to be listed from lower to higher. + Function: "_ScopeName" = "function" + Class: "_ScopeName" = "class" + Module: "_ScopeName" = "module" + Package: "_ScopeName" = "package" + Session: "_ScopeName" = "session" + + def next_lower(self) -> "Scope": + """Return the next lower scope.""" + index = _SCOPE_INDICES[self] + if index == 0: + raise ValueError(f"{self} is the lower-most scope") + return _ALL_SCOPES[index - 1] + + def next_higher(self) -> "Scope": + """Return the next higher scope.""" + index = _SCOPE_INDICES[self] + if index == len(_SCOPE_INDICES) - 1: + raise ValueError(f"{self} is the upper-most scope") + return _ALL_SCOPES[index + 1] + + def __lt__(self, other: "Scope") -> bool: + self_index = _SCOPE_INDICES[self] + other_index = _SCOPE_INDICES[other] + return self_index < other_index + + @classmethod + def from_user( + cls, scope_name: "_ScopeName", descr: str, where: Optional[str] = None + ) -> "Scope": + """ + Given a scope name from the user, return the equivalent Scope enum. Should be used + whenever we want to convert a user provided scope name to its enum object. + + If the scope name is invalid, construct a user friendly message and call pytest.fail. + """ + from _pytest.outcomes import fail + + try: + # Holding this reference is necessary for mypy at the moment. + scope = Scope(scope_name) + except ValueError: + fail( + "{} {}got an unexpected scope value '{}'".format( + descr, f"from {where} " if where else "", scope_name + ), + pytrace=False, + ) + return scope + + +_ALL_SCOPES = list(Scope) +_SCOPE_INDICES = {scope: index for index, scope in enumerate(_ALL_SCOPES)} + + +# Ordered list of scopes which can contain many tests (in practice all except Function). +HIGH_SCOPES = [x for x in Scope if x is not Scope.Function] diff --git a/utils/python-venv/Lib/site-packages/_pytest/setuponly.py b/utils/python-venv/Lib/site-packages/_pytest/setuponly.py new file mode 100644 index 0000000..583590d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/setuponly.py @@ -0,0 +1,97 @@ +from typing import Generator +from typing import Optional +from typing import Union + +import pytest +from _pytest._io.saferepr import saferepr +from _pytest.config import Config +from _pytest.config import ExitCode +from _pytest.config.argparsing import Parser +from _pytest.fixtures import FixtureDef +from _pytest.fixtures import SubRequest +from _pytest.scope import Scope + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("debugconfig") + group.addoption( + "--setuponly", + "--setup-only", + action="store_true", + help="Only setup fixtures, do not execute tests", + ) + group.addoption( + "--setupshow", + "--setup-show", + action="store_true", + help="Show setup of fixtures while executing tests", + ) + + +@pytest.hookimpl(hookwrapper=True) +def pytest_fixture_setup( + fixturedef: FixtureDef[object], request: SubRequest +) -> Generator[None, None, None]: + yield + if request.config.option.setupshow: + if hasattr(request, "param"): + # Save the fixture parameter so ._show_fixture_action() can + # display it now and during the teardown (in .finish()). + if fixturedef.ids: + if callable(fixturedef.ids): + param = fixturedef.ids(request.param) + else: + param = fixturedef.ids[request.param_index] + else: + param = request.param + fixturedef.cached_param = param # type: ignore[attr-defined] + _show_fixture_action(fixturedef, "SETUP") + + +def pytest_fixture_post_finalizer(fixturedef: FixtureDef[object]) -> None: + if fixturedef.cached_result is not None: + config = fixturedef._fixturemanager.config + if config.option.setupshow: + _show_fixture_action(fixturedef, "TEARDOWN") + if hasattr(fixturedef, "cached_param"): + del fixturedef.cached_param # type: ignore[attr-defined] + + +def _show_fixture_action(fixturedef: FixtureDef[object], msg: str) -> None: + config = fixturedef._fixturemanager.config + capman = config.pluginmanager.getplugin("capturemanager") + if capman: + capman.suspend_global_capture() + + tw = config.get_terminal_writer() + tw.line() + # Use smaller indentation the higher the scope: Session = 0, Package = 1, etc. + scope_indent = list(reversed(Scope)).index(fixturedef._scope) + tw.write(" " * 2 * scope_indent) + tw.write( + "{step} {scope} {fixture}".format( + step=msg.ljust(8), # align the output to TEARDOWN + scope=fixturedef.scope[0].upper(), + fixture=fixturedef.argname, + ) + ) + + if msg == "SETUP": + deps = sorted(arg for arg in fixturedef.argnames if arg != "request") + if deps: + tw.write(" (fixtures used: {})".format(", ".join(deps))) + + if hasattr(fixturedef, "cached_param"): + tw.write(f"[{saferepr(fixturedef.cached_param, maxsize=42)}]") # type: ignore[attr-defined] + + tw.flush() + + if capman: + capman.resume_global_capture() + + +@pytest.hookimpl(tryfirst=True) +def pytest_cmdline_main(config: Config) -> Optional[Union[int, ExitCode]]: + if config.option.setuponly: + config.option.setupshow = True + return None diff --git a/utils/python-venv/Lib/site-packages/_pytest/setupplan.py b/utils/python-venv/Lib/site-packages/_pytest/setupplan.py new file mode 100644 index 0000000..1a4ebdd --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/setupplan.py @@ -0,0 +1,40 @@ +from typing import Optional +from typing import Union + +import pytest +from _pytest.config import Config +from _pytest.config import ExitCode +from _pytest.config.argparsing import Parser +from _pytest.fixtures import FixtureDef +from _pytest.fixtures import SubRequest + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("debugconfig") + group.addoption( + "--setupplan", + "--setup-plan", + action="store_true", + help="Show what fixtures and tests would be executed but " + "don't execute anything", + ) + + +@pytest.hookimpl(tryfirst=True) +def pytest_fixture_setup( + fixturedef: FixtureDef[object], request: SubRequest +) -> Optional[object]: + # Will return a dummy fixture if the setuponly option is provided. + if request.config.option.setupplan: + my_cache_key = fixturedef.cache_key(request) + fixturedef.cached_result = (None, my_cache_key, None) + return fixturedef.cached_result + return None + + +@pytest.hookimpl(tryfirst=True) +def pytest_cmdline_main(config: Config) -> Optional[Union[int, ExitCode]]: + if config.option.setupplan: + config.option.setuponly = True + config.option.setupshow = True + return None diff --git a/utils/python-venv/Lib/site-packages/_pytest/skipping.py b/utils/python-venv/Lib/site-packages/_pytest/skipping.py new file mode 100644 index 0000000..b204423 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/skipping.py @@ -0,0 +1,296 @@ +"""Support for skip/xfail functions and markers.""" +import os +import platform +import sys +import traceback +from collections.abc import Mapping +from typing import Generator +from typing import Optional +from typing import Tuple +from typing import Type + +import attr + +from _pytest.config import Config +from _pytest.config import hookimpl +from _pytest.config.argparsing import Parser +from _pytest.mark.structures import Mark +from _pytest.nodes import Item +from _pytest.outcomes import fail +from _pytest.outcomes import skip +from _pytest.outcomes import xfail +from _pytest.reports import BaseReport +from _pytest.runner import CallInfo +from _pytest.stash import StashKey + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("general") + group.addoption( + "--runxfail", + action="store_true", + dest="runxfail", + default=False, + help="Report the results of xfail tests as if they were not marked", + ) + + parser.addini( + "xfail_strict", + "Default for the strict parameter of xfail " + "markers when not given explicitly (default: False)", + default=False, + type="bool", + ) + + +def pytest_configure(config: Config) -> None: + if config.option.runxfail: + # yay a hack + import pytest + + old = pytest.xfail + config.add_cleanup(lambda: setattr(pytest, "xfail", old)) + + def nop(*args, **kwargs): + pass + + nop.Exception = xfail.Exception # type: ignore[attr-defined] + setattr(pytest, "xfail", nop) + + config.addinivalue_line( + "markers", + "skip(reason=None): skip the given test function with an optional reason. " + 'Example: skip(reason="no way of currently testing this") skips the ' + "test.", + ) + config.addinivalue_line( + "markers", + "skipif(condition, ..., *, reason=...): " + "skip the given test function if any of the conditions evaluate to True. " + "Example: skipif(sys.platform == 'win32') skips the test if we are on the win32 platform. " + "See https://docs.pytest.org/en/stable/reference/reference.html#pytest-mark-skipif", + ) + config.addinivalue_line( + "markers", + "xfail(condition, ..., *, reason=..., run=True, raises=None, strict=xfail_strict): " + "mark the test function as an expected failure if any of the conditions " + "evaluate to True. Optionally specify a reason for better reporting " + "and run=False if you don't even want to execute the test function. " + "If only specific exception(s) are expected, you can list them in " + "raises, and if the test fails in other ways, it will be reported as " + "a true failure. See https://docs.pytest.org/en/stable/reference/reference.html#pytest-mark-xfail", + ) + + +def evaluate_condition(item: Item, mark: Mark, condition: object) -> Tuple[bool, str]: + """Evaluate a single skipif/xfail condition. + + If an old-style string condition is given, it is eval()'d, otherwise the + condition is bool()'d. If this fails, an appropriately formatted pytest.fail + is raised. + + Returns (result, reason). The reason is only relevant if the result is True. + """ + # String condition. + if isinstance(condition, str): + globals_ = { + "os": os, + "sys": sys, + "platform": platform, + "config": item.config, + } + for dictionary in reversed( + item.ihook.pytest_markeval_namespace(config=item.config) + ): + if not isinstance(dictionary, Mapping): + raise ValueError( + "pytest_markeval_namespace() needs to return a dict, got {!r}".format( + dictionary + ) + ) + globals_.update(dictionary) + if hasattr(item, "obj"): + globals_.update(item.obj.__globals__) # type: ignore[attr-defined] + try: + filename = f"<{mark.name} condition>" + condition_code = compile(condition, filename, "eval") + result = eval(condition_code, globals_) + except SyntaxError as exc: + msglines = [ + "Error evaluating %r condition" % mark.name, + " " + condition, + " " + " " * (exc.offset or 0) + "^", + "SyntaxError: invalid syntax", + ] + fail("\n".join(msglines), pytrace=False) + except Exception as exc: + msglines = [ + "Error evaluating %r condition" % mark.name, + " " + condition, + *traceback.format_exception_only(type(exc), exc), + ] + fail("\n".join(msglines), pytrace=False) + + # Boolean condition. + else: + try: + result = bool(condition) + except Exception as exc: + msglines = [ + "Error evaluating %r condition as a boolean" % mark.name, + *traceback.format_exception_only(type(exc), exc), + ] + fail("\n".join(msglines), pytrace=False) + + reason = mark.kwargs.get("reason", None) + if reason is None: + if isinstance(condition, str): + reason = "condition: " + condition + else: + # XXX better be checked at collection time + msg = ( + "Error evaluating %r: " % mark.name + + "you need to specify reason=STRING when using booleans as conditions." + ) + fail(msg, pytrace=False) + + return result, reason + + +@attr.s(slots=True, frozen=True, auto_attribs=True) +class Skip: + """The result of evaluate_skip_marks().""" + + reason: str = "unconditional skip" + + +def evaluate_skip_marks(item: Item) -> Optional[Skip]: + """Evaluate skip and skipif marks on item, returning Skip if triggered.""" + for mark in item.iter_markers(name="skipif"): + if "condition" not in mark.kwargs: + conditions = mark.args + else: + conditions = (mark.kwargs["condition"],) + + # Unconditional. + if not conditions: + reason = mark.kwargs.get("reason", "") + return Skip(reason) + + # If any of the conditions are true. + for condition in conditions: + result, reason = evaluate_condition(item, mark, condition) + if result: + return Skip(reason) + + for mark in item.iter_markers(name="skip"): + try: + return Skip(*mark.args, **mark.kwargs) + except TypeError as e: + raise TypeError(str(e) + " - maybe you meant pytest.mark.skipif?") from None + + return None + + +@attr.s(slots=True, frozen=True, auto_attribs=True) +class Xfail: + """The result of evaluate_xfail_marks().""" + + reason: str + run: bool + strict: bool + raises: Optional[Tuple[Type[BaseException], ...]] + + +def evaluate_xfail_marks(item: Item) -> Optional[Xfail]: + """Evaluate xfail marks on item, returning Xfail if triggered.""" + for mark in item.iter_markers(name="xfail"): + run = mark.kwargs.get("run", True) + strict = mark.kwargs.get("strict", item.config.getini("xfail_strict")) + raises = mark.kwargs.get("raises", None) + if "condition" not in mark.kwargs: + conditions = mark.args + else: + conditions = (mark.kwargs["condition"],) + + # Unconditional. + if not conditions: + reason = mark.kwargs.get("reason", "") + return Xfail(reason, run, strict, raises) + + # If any of the conditions are true. + for condition in conditions: + result, reason = evaluate_condition(item, mark, condition) + if result: + return Xfail(reason, run, strict, raises) + + return None + + +# Saves the xfail mark evaluation. Can be refreshed during call if None. +xfailed_key = StashKey[Optional[Xfail]]() + + +@hookimpl(tryfirst=True) +def pytest_runtest_setup(item: Item) -> None: + skipped = evaluate_skip_marks(item) + if skipped: + raise skip.Exception(skipped.reason, _use_item_location=True) + + item.stash[xfailed_key] = xfailed = evaluate_xfail_marks(item) + if xfailed and not item.config.option.runxfail and not xfailed.run: + xfail("[NOTRUN] " + xfailed.reason) + + +@hookimpl(hookwrapper=True) +def pytest_runtest_call(item: Item) -> Generator[None, None, None]: + xfailed = item.stash.get(xfailed_key, None) + if xfailed is None: + item.stash[xfailed_key] = xfailed = evaluate_xfail_marks(item) + + if xfailed and not item.config.option.runxfail and not xfailed.run: + xfail("[NOTRUN] " + xfailed.reason) + + yield + + # The test run may have added an xfail mark dynamically. + xfailed = item.stash.get(xfailed_key, None) + if xfailed is None: + item.stash[xfailed_key] = xfailed = evaluate_xfail_marks(item) + + +@hookimpl(hookwrapper=True) +def pytest_runtest_makereport(item: Item, call: CallInfo[None]): + outcome = yield + rep = outcome.get_result() + xfailed = item.stash.get(xfailed_key, None) + if item.config.option.runxfail: + pass # don't interfere + elif call.excinfo and isinstance(call.excinfo.value, xfail.Exception): + assert call.excinfo.value.msg is not None + rep.wasxfail = "reason: " + call.excinfo.value.msg + rep.outcome = "skipped" + elif not rep.skipped and xfailed: + if call.excinfo: + raises = xfailed.raises + if raises is not None and not isinstance(call.excinfo.value, raises): + rep.outcome = "failed" + else: + rep.outcome = "skipped" + rep.wasxfail = xfailed.reason + elif call.when == "call": + if xfailed.strict: + rep.outcome = "failed" + rep.longrepr = "[XPASS(strict)] " + xfailed.reason + else: + rep.outcome = "passed" + rep.wasxfail = xfailed.reason + + +def pytest_report_teststatus(report: BaseReport) -> Optional[Tuple[str, str, str]]: + if hasattr(report, "wasxfail"): + if report.skipped: + return "xfailed", "x", "XFAIL" + elif report.passed: + return "xpassed", "X", "XPASS" + return None diff --git a/utils/python-venv/Lib/site-packages/_pytest/stash.py b/utils/python-venv/Lib/site-packages/_pytest/stash.py new file mode 100644 index 0000000..e61d75b --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/stash.py @@ -0,0 +1,112 @@ +from typing import Any +from typing import cast +from typing import Dict +from typing import Generic +from typing import TypeVar +from typing import Union + + +__all__ = ["Stash", "StashKey"] + + +T = TypeVar("T") +D = TypeVar("D") + + +class StashKey(Generic[T]): + """``StashKey`` is an object used as a key to a :class:`Stash`. + + A ``StashKey`` is associated with the type ``T`` of the value of the key. + + A ``StashKey`` is unique and cannot conflict with another key. + """ + + __slots__ = () + + +class Stash: + r"""``Stash`` is a type-safe heterogeneous mutable mapping that + allows keys and value types to be defined separately from + where it (the ``Stash``) is created. + + Usually you will be given an object which has a ``Stash``, for example + :class:`~pytest.Config` or a :class:`~_pytest.nodes.Node`: + + .. code-block:: python + + stash: Stash = some_object.stash + + If a module or plugin wants to store data in this ``Stash``, it creates + :class:`StashKey`\s for its keys (at the module level): + + .. code-block:: python + + # At the top-level of the module + some_str_key = StashKey[str]() + some_bool_key = StashKey[bool]() + + To store information: + + .. code-block:: python + + # Value type must match the key. + stash[some_str_key] = "value" + stash[some_bool_key] = True + + To retrieve the information: + + .. code-block:: python + + # The static type of some_str is str. + some_str = stash[some_str_key] + # The static type of some_bool is bool. + some_bool = stash[some_bool_key] + """ + + __slots__ = ("_storage",) + + def __init__(self) -> None: + self._storage: Dict[StashKey[Any], object] = {} + + def __setitem__(self, key: StashKey[T], value: T) -> None: + """Set a value for key.""" + self._storage[key] = value + + def __getitem__(self, key: StashKey[T]) -> T: + """Get the value for key. + + Raises ``KeyError`` if the key wasn't set before. + """ + return cast(T, self._storage[key]) + + def get(self, key: StashKey[T], default: D) -> Union[T, D]: + """Get the value for key, or return default if the key wasn't set + before.""" + try: + return self[key] + except KeyError: + return default + + def setdefault(self, key: StashKey[T], default: T) -> T: + """Return the value of key if already set, otherwise set the value + of key to default and return default.""" + try: + return self[key] + except KeyError: + self[key] = default + return default + + def __delitem__(self, key: StashKey[T]) -> None: + """Delete the value for key. + + Raises ``KeyError`` if the key wasn't set before. + """ + del self._storage[key] + + def __contains__(self, key: StashKey[T]) -> bool: + """Return whether key was set.""" + return key in self._storage + + def __len__(self) -> int: + """Return how many items exist in the stash.""" + return len(self._storage) diff --git a/utils/python-venv/Lib/site-packages/_pytest/stepwise.py b/utils/python-venv/Lib/site-packages/_pytest/stepwise.py new file mode 100644 index 0000000..84f1a6c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/stepwise.py @@ -0,0 +1,122 @@ +from typing import List +from typing import Optional +from typing import TYPE_CHECKING + +import pytest +from _pytest import nodes +from _pytest.config import Config +from _pytest.config.argparsing import Parser +from _pytest.main import Session +from _pytest.reports import TestReport + +if TYPE_CHECKING: + from _pytest.cacheprovider import Cache + +STEPWISE_CACHE_DIR = "cache/stepwise" + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("general") + group.addoption( + "--sw", + "--stepwise", + action="store_true", + default=False, + dest="stepwise", + help="Exit on test failure and continue from last failing test next time", + ) + group.addoption( + "--sw-skip", + "--stepwise-skip", + action="store_true", + default=False, + dest="stepwise_skip", + help="Ignore the first failing test but stop on the next failing test. " + "Implicitly enables --stepwise.", + ) + + +@pytest.hookimpl +def pytest_configure(config: Config) -> None: + if config.option.stepwise_skip: + # allow --stepwise-skip to work on it's own merits. + config.option.stepwise = True + if config.getoption("stepwise"): + config.pluginmanager.register(StepwisePlugin(config), "stepwiseplugin") + + +def pytest_sessionfinish(session: Session) -> None: + if not session.config.getoption("stepwise"): + assert session.config.cache is not None + # Clear the list of failing tests if the plugin is not active. + session.config.cache.set(STEPWISE_CACHE_DIR, []) + + +class StepwisePlugin: + def __init__(self, config: Config) -> None: + self.config = config + self.session: Optional[Session] = None + self.report_status = "" + assert config.cache is not None + self.cache: Cache = config.cache + self.lastfailed: Optional[str] = self.cache.get(STEPWISE_CACHE_DIR, None) + self.skip: bool = config.getoption("stepwise_skip") + + def pytest_sessionstart(self, session: Session) -> None: + self.session = session + + def pytest_collection_modifyitems( + self, config: Config, items: List[nodes.Item] + ) -> None: + if not self.lastfailed: + self.report_status = "no previously failed tests, not skipping." + return + + # check all item nodes until we find a match on last failed + failed_index = None + for index, item in enumerate(items): + if item.nodeid == self.lastfailed: + failed_index = index + break + + # If the previously failed test was not found among the test items, + # do not skip any tests. + if failed_index is None: + self.report_status = "previously failed test not found, not skipping." + else: + self.report_status = f"skipping {failed_index} already passed items." + deselected = items[:failed_index] + del items[:failed_index] + config.hook.pytest_deselected(items=deselected) + + def pytest_runtest_logreport(self, report: TestReport) -> None: + if report.failed: + if self.skip: + # Remove test from the failed ones (if it exists) and unset the skip option + # to make sure the following tests will not be skipped. + if report.nodeid == self.lastfailed: + self.lastfailed = None + + self.skip = False + else: + # Mark test as the last failing and interrupt the test session. + self.lastfailed = report.nodeid + assert self.session is not None + self.session.shouldstop = ( + "Test failed, continuing from this test next run." + ) + + else: + # If the test was actually run and did pass. + if report.when == "call": + # Remove test from the failed ones, if exists. + if report.nodeid == self.lastfailed: + self.lastfailed = None + + def pytest_report_collectionfinish(self) -> Optional[str]: + if self.config.getoption("verbose") >= 0 and self.report_status: + return f"stepwise: {self.report_status}" + return None + + def pytest_sessionfinish(self) -> None: + self.cache.set(STEPWISE_CACHE_DIR, self.lastfailed) diff --git a/utils/python-venv/Lib/site-packages/_pytest/terminal.py b/utils/python-venv/Lib/site-packages/_pytest/terminal.py new file mode 100644 index 0000000..d967a3e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/terminal.py @@ -0,0 +1,1432 @@ +"""Terminal reporting of the full testing process. + +This is a good source for looking at the various reporting hooks. +""" +import argparse +import datetime +import inspect +import platform +import sys +import warnings +from collections import Counter +from functools import partial +from pathlib import Path +from typing import Any +from typing import Callable +from typing import cast +from typing import ClassVar +from typing import Dict +from typing import Generator +from typing import List +from typing import Mapping +from typing import Optional +from typing import Sequence +from typing import Set +from typing import TextIO +from typing import Tuple +from typing import TYPE_CHECKING +from typing import Union + +import attr +import pluggy + +import _pytest._version +from _pytest import nodes +from _pytest import timing +from _pytest._code import ExceptionInfo +from _pytest._code.code import ExceptionRepr +from _pytest._io import TerminalWriter +from _pytest._io.wcwidth import wcswidth +from _pytest.assertion.util import running_on_ci +from _pytest.compat import final +from _pytest.config import _PluggyPlugin +from _pytest.config import Config +from _pytest.config import ExitCode +from _pytest.config import hookimpl +from _pytest.config.argparsing import Parser +from _pytest.nodes import Item +from _pytest.nodes import Node +from _pytest.pathlib import absolutepath +from _pytest.pathlib import bestrelpath +from _pytest.reports import BaseReport +from _pytest.reports import CollectReport +from _pytest.reports import TestReport + +if TYPE_CHECKING: + from typing_extensions import Literal + + from _pytest.main import Session + + +REPORT_COLLECTING_RESOLUTION = 0.5 + +KNOWN_TYPES = ( + "failed", + "passed", + "skipped", + "deselected", + "xfailed", + "xpassed", + "warnings", + "error", +) + +_REPORTCHARS_DEFAULT = "fE" + + +class MoreQuietAction(argparse.Action): + """A modified copy of the argparse count action which counts down and updates + the legacy quiet attribute at the same time. + + Used to unify verbosity handling. + """ + + def __init__( + self, + option_strings: Sequence[str], + dest: str, + default: object = None, + required: bool = False, + help: Optional[str] = None, + ) -> None: + super().__init__( + option_strings=option_strings, + dest=dest, + nargs=0, + default=default, + required=required, + help=help, + ) + + def __call__( + self, + parser: argparse.ArgumentParser, + namespace: argparse.Namespace, + values: Union[str, Sequence[object], None], + option_string: Optional[str] = None, + ) -> None: + new_count = getattr(namespace, self.dest, 0) - 1 + setattr(namespace, self.dest, new_count) + # todo Deprecate config.quiet + namespace.quiet = getattr(namespace, "quiet", 0) + 1 + + +def pytest_addoption(parser: Parser) -> None: + group = parser.getgroup("terminal reporting", "Reporting", after="general") + group._addoption( + "-v", + "--verbose", + action="count", + default=0, + dest="verbose", + help="Increase verbosity", + ) + group._addoption( + "--no-header", + action="store_true", + default=False, + dest="no_header", + help="Disable header", + ) + group._addoption( + "--no-summary", + action="store_true", + default=False, + dest="no_summary", + help="Disable summary", + ) + group._addoption( + "-q", + "--quiet", + action=MoreQuietAction, + default=0, + dest="verbose", + help="Decrease verbosity", + ) + group._addoption( + "--verbosity", + dest="verbose", + type=int, + default=0, + help="Set verbosity. Default: 0.", + ) + group._addoption( + "-r", + action="store", + dest="reportchars", + default=_REPORTCHARS_DEFAULT, + metavar="chars", + help="Show extra test summary info as specified by chars: (f)ailed, " + "(E)rror, (s)kipped, (x)failed, (X)passed, " + "(p)assed, (P)assed with output, (a)ll except passed (p/P), or (A)ll. " + "(w)arnings are enabled by default (see --disable-warnings), " + "'N' can be used to reset the list. (default: 'fE').", + ) + group._addoption( + "--disable-warnings", + "--disable-pytest-warnings", + default=False, + dest="disable_warnings", + action="store_true", + help="Disable warnings summary", + ) + group._addoption( + "-l", + "--showlocals", + action="store_true", + dest="showlocals", + default=False, + help="Show locals in tracebacks (disabled by default)", + ) + group._addoption( + "--no-showlocals", + action="store_false", + dest="showlocals", + help="Hide locals in tracebacks (negate --showlocals passed through addopts)", + ) + group._addoption( + "--tb", + metavar="style", + action="store", + dest="tbstyle", + default="auto", + choices=["auto", "long", "short", "no", "line", "native"], + help="Traceback print mode (auto/long/short/line/native/no)", + ) + group._addoption( + "--show-capture", + action="store", + dest="showcapture", + choices=["no", "stdout", "stderr", "log", "all"], + default="all", + help="Controls how captured stdout/stderr/log is shown on failed tests. " + "Default: all.", + ) + group._addoption( + "--fulltrace", + "--full-trace", + action="store_true", + default=False, + help="Don't cut any tracebacks (default is to cut)", + ) + group._addoption( + "--color", + metavar="color", + action="store", + dest="color", + default="auto", + choices=["yes", "no", "auto"], + help="Color terminal output (yes/no/auto)", + ) + group._addoption( + "--code-highlight", + default="yes", + choices=["yes", "no"], + help="Whether code should be highlighted (only if --color is also enabled). " + "Default: yes.", + ) + + parser.addini( + "console_output_style", + help='Console output: "classic", or with additional progress information ' + '("progress" (percentage) | "count")', + default="progress", + ) + + +def pytest_configure(config: Config) -> None: + reporter = TerminalReporter(config, sys.stdout) + config.pluginmanager.register(reporter, "terminalreporter") + if config.option.debug or config.option.traceconfig: + + def mywriter(tags, args): + msg = " ".join(map(str, args)) + reporter.write_line("[traceconfig] " + msg) + + config.trace.root.setprocessor("pytest:config", mywriter) + + +def getreportopt(config: Config) -> str: + reportchars: str = config.option.reportchars + + old_aliases = {"F", "S"} + reportopts = "" + for char in reportchars: + if char in old_aliases: + char = char.lower() + if char == "a": + reportopts = "sxXEf" + elif char == "A": + reportopts = "PpsxXEf" + elif char == "N": + reportopts = "" + elif char not in reportopts: + reportopts += char + + if not config.option.disable_warnings and "w" not in reportopts: + reportopts = "w" + reportopts + elif config.option.disable_warnings and "w" in reportopts: + reportopts = reportopts.replace("w", "") + + return reportopts + + +@hookimpl(trylast=True) # after _pytest.runner +def pytest_report_teststatus(report: BaseReport) -> Tuple[str, str, str]: + letter = "F" + if report.passed: + letter = "." + elif report.skipped: + letter = "s" + + outcome: str = report.outcome + if report.when in ("collect", "setup", "teardown") and outcome == "failed": + outcome = "error" + letter = "E" + + return outcome, letter, outcome.upper() + + +@attr.s(auto_attribs=True) +class WarningReport: + """Simple structure to hold warnings information captured by ``pytest_warning_recorded``. + + :ivar str message: + User friendly message about the warning. + :ivar str|None nodeid: + nodeid that generated the warning (see ``get_location``). + :ivar tuple fslocation: + File system location of the source of the warning (see ``get_location``). + """ + + message: str + nodeid: Optional[str] = None + fslocation: Optional[Tuple[str, int]] = None + + count_towards_summary: ClassVar = True + + def get_location(self, config: Config) -> Optional[str]: + """Return the more user-friendly information about the location of a warning, or None.""" + if self.nodeid: + return self.nodeid + if self.fslocation: + filename, linenum = self.fslocation + relpath = bestrelpath(config.invocation_params.dir, absolutepath(filename)) + return f"{relpath}:{linenum}" + return None + + +@final +class TerminalReporter: + def __init__(self, config: Config, file: Optional[TextIO] = None) -> None: + import _pytest.config + + self.config = config + self._numcollected = 0 + self._session: Optional[Session] = None + self._showfspath: Optional[bool] = None + + self.stats: Dict[str, List[Any]] = {} + self._main_color: Optional[str] = None + self._known_types: Optional[List[str]] = None + self.startpath = config.invocation_params.dir + if file is None: + file = sys.stdout + self._tw = _pytest.config.create_terminal_writer(config, file) + self._screen_width = self._tw.fullwidth + self.currentfspath: Union[None, Path, str, int] = None + self.reportchars = getreportopt(config) + self.hasmarkup = self._tw.hasmarkup + self.isatty = file.isatty() + self._progress_nodeids_reported: Set[str] = set() + self._show_progress_info = self._determine_show_progress_info() + self._collect_report_last_write: Optional[float] = None + self._already_displayed_warnings: Optional[int] = None + self._keyboardinterrupt_memo: Optional[ExceptionRepr] = None + + def _determine_show_progress_info(self) -> "Literal['progress', 'count', False]": + """Return whether we should display progress information based on the current config.""" + # do not show progress if we are not capturing output (#3038) + if self.config.getoption("capture", "no") == "no": + return False + # do not show progress if we are showing fixture setup/teardown + if self.config.getoption("setupshow", False): + return False + cfg: str = self.config.getini("console_output_style") + if cfg == "progress": + return "progress" + elif cfg == "count": + return "count" + else: + return False + + @property + def verbosity(self) -> int: + verbosity: int = self.config.option.verbose + return verbosity + + @property + def showheader(self) -> bool: + return self.verbosity >= 0 + + @property + def no_header(self) -> bool: + return bool(self.config.option.no_header) + + @property + def no_summary(self) -> bool: + return bool(self.config.option.no_summary) + + @property + def showfspath(self) -> bool: + if self._showfspath is None: + return self.verbosity >= 0 + return self._showfspath + + @showfspath.setter + def showfspath(self, value: Optional[bool]) -> None: + self._showfspath = value + + @property + def showlongtestinfo(self) -> bool: + return self.verbosity > 0 + + def hasopt(self, char: str) -> bool: + char = {"xfailed": "x", "skipped": "s"}.get(char, char) + return char in self.reportchars + + def write_fspath_result(self, nodeid: str, res, **markup: bool) -> None: + fspath = self.config.rootpath / nodeid.split("::")[0] + if self.currentfspath is None or fspath != self.currentfspath: + if self.currentfspath is not None and self._show_progress_info: + self._write_progress_information_filling_space() + self.currentfspath = fspath + relfspath = bestrelpath(self.startpath, fspath) + self._tw.line() + self._tw.write(relfspath + " ") + self._tw.write(res, flush=True, **markup) + + def write_ensure_prefix(self, prefix: str, extra: str = "", **kwargs) -> None: + if self.currentfspath != prefix: + self._tw.line() + self.currentfspath = prefix + self._tw.write(prefix) + if extra: + self._tw.write(extra, **kwargs) + self.currentfspath = -2 + + def ensure_newline(self) -> None: + if self.currentfspath: + self._tw.line() + self.currentfspath = None + + def write(self, content: str, *, flush: bool = False, **markup: bool) -> None: + self._tw.write(content, flush=flush, **markup) + + def flush(self) -> None: + self._tw.flush() + + def write_line(self, line: Union[str, bytes], **markup: bool) -> None: + if not isinstance(line, str): + line = str(line, errors="replace") + self.ensure_newline() + self._tw.line(line, **markup) + + def rewrite(self, line: str, **markup: bool) -> None: + """Rewinds the terminal cursor to the beginning and writes the given line. + + :param erase: + If True, will also add spaces until the full terminal width to ensure + previous lines are properly erased. + + The rest of the keyword arguments are markup instructions. + """ + erase = markup.pop("erase", False) + if erase: + fill_count = self._tw.fullwidth - len(line) - 1 + fill = " " * fill_count + else: + fill = "" + line = str(line) + self._tw.write("\r" + line + fill, **markup) + + def write_sep( + self, + sep: str, + title: Optional[str] = None, + fullwidth: Optional[int] = None, + **markup: bool, + ) -> None: + self.ensure_newline() + self._tw.sep(sep, title, fullwidth, **markup) + + def section(self, title: str, sep: str = "=", **kw: bool) -> None: + self._tw.sep(sep, title, **kw) + + def line(self, msg: str, **kw: bool) -> None: + self._tw.line(msg, **kw) + + def _add_stats(self, category: str, items: Sequence[Any]) -> None: + set_main_color = category not in self.stats + self.stats.setdefault(category, []).extend(items) + if set_main_color: + self._set_main_color() + + def pytest_internalerror(self, excrepr: ExceptionRepr) -> bool: + for line in str(excrepr).split("\n"): + self.write_line("INTERNALERROR> " + line) + return True + + def pytest_warning_recorded( + self, + warning_message: warnings.WarningMessage, + nodeid: str, + ) -> None: + from _pytest.warnings import warning_record_to_str + + fslocation = warning_message.filename, warning_message.lineno + message = warning_record_to_str(warning_message) + + warning_report = WarningReport( + fslocation=fslocation, message=message, nodeid=nodeid + ) + self._add_stats("warnings", [warning_report]) + + def pytest_plugin_registered(self, plugin: _PluggyPlugin) -> None: + if self.config.option.traceconfig: + msg = f"PLUGIN registered: {plugin}" + # XXX This event may happen during setup/teardown time + # which unfortunately captures our output here + # which garbles our output if we use self.write_line. + self.write_line(msg) + + def pytest_deselected(self, items: Sequence[Item]) -> None: + self._add_stats("deselected", items) + + def pytest_runtest_logstart( + self, nodeid: str, location: Tuple[str, Optional[int], str] + ) -> None: + # Ensure that the path is printed before the + # 1st test of a module starts running. + if self.showlongtestinfo: + line = self._locationline(nodeid, *location) + self.write_ensure_prefix(line, "") + self.flush() + elif self.showfspath: + self.write_fspath_result(nodeid, "") + self.flush() + + def pytest_runtest_logreport(self, report: TestReport) -> None: + self._tests_ran = True + rep = report + res: Tuple[ + str, str, Union[str, Tuple[str, Mapping[str, bool]]] + ] = self.config.hook.pytest_report_teststatus(report=rep, config=self.config) + category, letter, word = res + if not isinstance(word, tuple): + markup = None + else: + word, markup = word + self._add_stats(category, [rep]) + if not letter and not word: + # Probably passed setup/teardown. + return + running_xdist = hasattr(rep, "node") + if markup is None: + was_xfail = hasattr(report, "wasxfail") + if rep.passed and not was_xfail: + markup = {"green": True} + elif rep.passed and was_xfail: + markup = {"yellow": True} + elif rep.failed: + markup = {"red": True} + elif rep.skipped: + markup = {"yellow": True} + else: + markup = {} + if self.verbosity <= 0: + self._tw.write(letter, **markup) + else: + self._progress_nodeids_reported.add(rep.nodeid) + line = self._locationline(rep.nodeid, *rep.location) + if not running_xdist: + self.write_ensure_prefix(line, word, **markup) + if rep.skipped or hasattr(report, "wasxfail"): + reason = _get_raw_skip_reason(rep) + if self.config.option.verbose < 2: + available_width = ( + (self._tw.fullwidth - self._tw.width_of_current_line) + - len(" [100%]") + - 1 + ) + formatted_reason = _format_trimmed( + " ({})", reason, available_width + ) + else: + formatted_reason = f" ({reason})" + + if reason and formatted_reason is not None: + self._tw.write(formatted_reason) + if self._show_progress_info: + self._write_progress_information_filling_space() + else: + self.ensure_newline() + self._tw.write("[%s]" % rep.node.gateway.id) + if self._show_progress_info: + self._tw.write( + self._get_progress_information_message() + " ", cyan=True + ) + else: + self._tw.write(" ") + self._tw.write(word, **markup) + self._tw.write(" " + line) + self.currentfspath = -2 + self.flush() + + @property + def _is_last_item(self) -> bool: + assert self._session is not None + return len(self._progress_nodeids_reported) == self._session.testscollected + + def pytest_runtest_logfinish(self, nodeid: str) -> None: + assert self._session + if self.verbosity <= 0 and self._show_progress_info: + if self._show_progress_info == "count": + num_tests = self._session.testscollected + progress_length = len(f" [{num_tests}/{num_tests}]") + else: + progress_length = len(" [100%]") + + self._progress_nodeids_reported.add(nodeid) + + if self._is_last_item: + self._write_progress_information_filling_space() + else: + main_color, _ = self._get_main_color() + w = self._width_of_current_line + past_edge = w + progress_length + 1 >= self._screen_width + if past_edge: + msg = self._get_progress_information_message() + self._tw.write(msg + "\n", **{main_color: True}) + + def _get_progress_information_message(self) -> str: + assert self._session + collected = self._session.testscollected + if self._show_progress_info == "count": + if collected: + progress = self._progress_nodeids_reported + counter_format = f"{{:{len(str(collected))}d}}" + format_string = f" [{counter_format}/{{}}]" + return format_string.format(len(progress), collected) + return f" [ {collected} / {collected} ]" + else: + if collected: + return " [{:3d}%]".format( + len(self._progress_nodeids_reported) * 100 // collected + ) + return " [100%]" + + def _write_progress_information_filling_space(self) -> None: + color, _ = self._get_main_color() + msg = self._get_progress_information_message() + w = self._width_of_current_line + fill = self._tw.fullwidth - w - 1 + self.write(msg.rjust(fill), flush=True, **{color: True}) + + @property + def _width_of_current_line(self) -> int: + """Return the width of the current line.""" + return self._tw.width_of_current_line + + def pytest_collection(self) -> None: + if self.isatty: + if self.config.option.verbose >= 0: + self.write("collecting ... ", flush=True, bold=True) + self._collect_report_last_write = timing.time() + elif self.config.option.verbose >= 1: + self.write("collecting ... ", flush=True, bold=True) + + def pytest_collectreport(self, report: CollectReport) -> None: + if report.failed: + self._add_stats("error", [report]) + elif report.skipped: + self._add_stats("skipped", [report]) + items = [x for x in report.result if isinstance(x, Item)] + self._numcollected += len(items) + if self.isatty: + self.report_collect() + + def report_collect(self, final: bool = False) -> None: + if self.config.option.verbose < 0: + return + + if not final: + # Only write "collecting" report every 0.5s. + t = timing.time() + if ( + self._collect_report_last_write is not None + and self._collect_report_last_write > t - REPORT_COLLECTING_RESOLUTION + ): + return + self._collect_report_last_write = t + + errors = len(self.stats.get("error", [])) + skipped = len(self.stats.get("skipped", [])) + deselected = len(self.stats.get("deselected", [])) + selected = self._numcollected - deselected + line = "collected " if final else "collecting " + line += ( + str(self._numcollected) + " item" + ("" if self._numcollected == 1 else "s") + ) + if errors: + line += " / %d error%s" % (errors, "s" if errors != 1 else "") + if deselected: + line += " / %d deselected" % deselected + if skipped: + line += " / %d skipped" % skipped + if self._numcollected > selected: + line += " / %d selected" % selected + if self.isatty: + self.rewrite(line, bold=True, erase=True) + if final: + self.write("\n") + else: + self.write_line(line) + + @hookimpl(trylast=True) + def pytest_sessionstart(self, session: "Session") -> None: + self._session = session + self._sessionstarttime = timing.time() + if not self.showheader: + return + self.write_sep("=", "test session starts", bold=True) + verinfo = platform.python_version() + if not self.no_header: + msg = f"platform {sys.platform} -- Python {verinfo}" + pypy_version_info = getattr(sys, "pypy_version_info", None) + if pypy_version_info: + verinfo = ".".join(map(str, pypy_version_info[:3])) + msg += f"[pypy-{verinfo}-{pypy_version_info[3]}]" + msg += ", pytest-{}, pluggy-{}".format( + _pytest._version.version, pluggy.__version__ + ) + if ( + self.verbosity > 0 + or self.config.option.debug + or getattr(self.config.option, "pastebin", None) + ): + msg += " -- " + str(sys.executable) + self.write_line(msg) + lines = self.config.hook.pytest_report_header( + config=self.config, start_path=self.startpath + ) + self._write_report_lines_from_hooks(lines) + + def _write_report_lines_from_hooks( + self, lines: Sequence[Union[str, Sequence[str]]] + ) -> None: + for line_or_lines in reversed(lines): + if isinstance(line_or_lines, str): + self.write_line(line_or_lines) + else: + for line in line_or_lines: + self.write_line(line) + + def pytest_report_header(self, config: Config) -> List[str]: + line = "rootdir: %s" % config.rootpath + + if config.inipath: + line += ", configfile: " + bestrelpath(config.rootpath, config.inipath) + + if config.args_source == Config.ArgsSource.TESTPATHS: + testpaths: List[str] = config.getini("testpaths") + line += ", testpaths: {}".format(", ".join(testpaths)) + + result = [line] + + plugininfo = config.pluginmanager.list_plugin_distinfo() + if plugininfo: + result.append("plugins: %s" % ", ".join(_plugin_nameversions(plugininfo))) + return result + + def pytest_collection_finish(self, session: "Session") -> None: + self.report_collect(True) + + lines = self.config.hook.pytest_report_collectionfinish( + config=self.config, + start_path=self.startpath, + items=session.items, + ) + self._write_report_lines_from_hooks(lines) + + if self.config.getoption("collectonly"): + if session.items: + if self.config.option.verbose > -1: + self._tw.line("") + self._printcollecteditems(session.items) + + failed = self.stats.get("failed") + if failed: + self._tw.sep("!", "collection failures") + for rep in failed: + rep.toterminal(self._tw) + + def _printcollecteditems(self, items: Sequence[Item]) -> None: + if self.config.option.verbose < 0: + if self.config.option.verbose < -1: + counts = Counter(item.nodeid.split("::", 1)[0] for item in items) + for name, count in sorted(counts.items()): + self._tw.line("%s: %d" % (name, count)) + else: + for item in items: + self._tw.line(item.nodeid) + return + stack: List[Node] = [] + indent = "" + for item in items: + needed_collectors = item.listchain()[1:] # strip root node + while stack: + if stack == needed_collectors[: len(stack)]: + break + stack.pop() + for col in needed_collectors[len(stack) :]: + stack.append(col) + indent = (len(stack) - 1) * " " + self._tw.line(f"{indent}{col}") + if self.config.option.verbose >= 1: + obj = getattr(col, "obj", None) + doc = inspect.getdoc(obj) if obj else None + if doc: + for line in doc.splitlines(): + self._tw.line("{}{}".format(indent + " ", line)) + + @hookimpl(hookwrapper=True) + def pytest_sessionfinish( + self, session: "Session", exitstatus: Union[int, ExitCode] + ): + outcome = yield + outcome.get_result() + self._tw.line("") + summary_exit_codes = ( + ExitCode.OK, + ExitCode.TESTS_FAILED, + ExitCode.INTERRUPTED, + ExitCode.USAGE_ERROR, + ExitCode.NO_TESTS_COLLECTED, + ) + if exitstatus in summary_exit_codes and not self.no_summary: + self.config.hook.pytest_terminal_summary( + terminalreporter=self, exitstatus=exitstatus, config=self.config + ) + if session.shouldfail: + self.write_sep("!", str(session.shouldfail), red=True) + if exitstatus == ExitCode.INTERRUPTED: + self._report_keyboardinterrupt() + self._keyboardinterrupt_memo = None + elif session.shouldstop: + self.write_sep("!", str(session.shouldstop), red=True) + self.summary_stats() + + @hookimpl(hookwrapper=True) + def pytest_terminal_summary(self) -> Generator[None, None, None]: + self.summary_errors() + self.summary_failures() + self.summary_warnings() + self.summary_passes() + yield + self.short_test_summary() + # Display any extra warnings from teardown here (if any). + self.summary_warnings() + + def pytest_keyboard_interrupt(self, excinfo: ExceptionInfo[BaseException]) -> None: + self._keyboardinterrupt_memo = excinfo.getrepr(funcargs=True) + + def pytest_unconfigure(self) -> None: + if self._keyboardinterrupt_memo is not None: + self._report_keyboardinterrupt() + + def _report_keyboardinterrupt(self) -> None: + excrepr = self._keyboardinterrupt_memo + assert excrepr is not None + assert excrepr.reprcrash is not None + msg = excrepr.reprcrash.message + self.write_sep("!", msg) + if "KeyboardInterrupt" in msg: + if self.config.option.fulltrace: + excrepr.toterminal(self._tw) + else: + excrepr.reprcrash.toterminal(self._tw) + self._tw.line( + "(to show a full traceback on KeyboardInterrupt use --full-trace)", + yellow=True, + ) + + def _locationline( + self, nodeid: str, fspath: str, lineno: Optional[int], domain: str + ) -> str: + def mkrel(nodeid: str) -> str: + line = self.config.cwd_relative_nodeid(nodeid) + if domain and line.endswith(domain): + line = line[: -len(domain)] + values = domain.split("[") + values[0] = values[0].replace(".", "::") # don't replace '.' in params + line += "[".join(values) + return line + + # collect_fspath comes from testid which has a "/"-normalized path. + if fspath: + res = mkrel(nodeid) + if self.verbosity >= 2 and nodeid.split("::")[0] != fspath.replace( + "\\", nodes.SEP + ): + res += " <- " + bestrelpath(self.startpath, Path(fspath)) + else: + res = "[location]" + return res + " " + + def _getfailureheadline(self, rep): + head_line = rep.head_line + if head_line: + return head_line + return "test session" # XXX? + + def _getcrashline(self, rep): + try: + return str(rep.longrepr.reprcrash) + except AttributeError: + try: + return str(rep.longrepr)[:50] + except AttributeError: + return "" + + # + # Summaries for sessionfinish. + # + def getreports(self, name: str): + return [x for x in self.stats.get(name, ()) if not hasattr(x, "_pdbshown")] + + def summary_warnings(self) -> None: + if self.hasopt("w"): + all_warnings: Optional[List[WarningReport]] = self.stats.get("warnings") + if not all_warnings: + return + + final = self._already_displayed_warnings is not None + if final: + warning_reports = all_warnings[self._already_displayed_warnings :] + else: + warning_reports = all_warnings + self._already_displayed_warnings = len(warning_reports) + if not warning_reports: + return + + reports_grouped_by_message: Dict[str, List[WarningReport]] = {} + for wr in warning_reports: + reports_grouped_by_message.setdefault(wr.message, []).append(wr) + + def collapsed_location_report(reports: List[WarningReport]) -> str: + locations = [] + for w in reports: + location = w.get_location(self.config) + if location: + locations.append(location) + + if len(locations) < 10: + return "\n".join(map(str, locations)) + + counts_by_filename = Counter( + str(loc).split("::", 1)[0] for loc in locations + ) + return "\n".join( + "{}: {} warning{}".format(k, v, "s" if v > 1 else "") + for k, v in counts_by_filename.items() + ) + + title = "warnings summary (final)" if final else "warnings summary" + self.write_sep("=", title, yellow=True, bold=False) + for message, message_reports in reports_grouped_by_message.items(): + maybe_location = collapsed_location_report(message_reports) + if maybe_location: + self._tw.line(maybe_location) + lines = message.splitlines() + indented = "\n".join(" " + x for x in lines) + message = indented.rstrip() + else: + message = message.rstrip() + self._tw.line(message) + self._tw.line() + self._tw.line( + "-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html" + ) + + def summary_passes(self) -> None: + if self.config.option.tbstyle != "no": + if self.hasopt("P"): + reports: List[TestReport] = self.getreports("passed") + if not reports: + return + self.write_sep("=", "PASSES") + for rep in reports: + if rep.sections: + msg = self._getfailureheadline(rep) + self.write_sep("_", msg, green=True, bold=True) + self._outrep_summary(rep) + self._handle_teardown_sections(rep.nodeid) + + def _get_teardown_reports(self, nodeid: str) -> List[TestReport]: + reports = self.getreports("") + return [ + report + for report in reports + if report.when == "teardown" and report.nodeid == nodeid + ] + + def _handle_teardown_sections(self, nodeid: str) -> None: + for report in self._get_teardown_reports(nodeid): + self.print_teardown_sections(report) + + def print_teardown_sections(self, rep: TestReport) -> None: + showcapture = self.config.option.showcapture + if showcapture == "no": + return + for secname, content in rep.sections: + if showcapture != "all" and showcapture not in secname: + continue + if "teardown" in secname: + self._tw.sep("-", secname) + if content[-1:] == "\n": + content = content[:-1] + self._tw.line(content) + + def summary_failures(self) -> None: + if self.config.option.tbstyle != "no": + reports: List[BaseReport] = self.getreports("failed") + if not reports: + return + self.write_sep("=", "FAILURES") + if self.config.option.tbstyle == "line": + for rep in reports: + line = self._getcrashline(rep) + self.write_line(line) + else: + for rep in reports: + msg = self._getfailureheadline(rep) + self.write_sep("_", msg, red=True, bold=True) + self._outrep_summary(rep) + self._handle_teardown_sections(rep.nodeid) + + def summary_errors(self) -> None: + if self.config.option.tbstyle != "no": + reports: List[BaseReport] = self.getreports("error") + if not reports: + return + self.write_sep("=", "ERRORS") + for rep in self.stats["error"]: + msg = self._getfailureheadline(rep) + if rep.when == "collect": + msg = "ERROR collecting " + msg + else: + msg = f"ERROR at {rep.when} of {msg}" + self.write_sep("_", msg, red=True, bold=True) + self._outrep_summary(rep) + + def _outrep_summary(self, rep: BaseReport) -> None: + rep.toterminal(self._tw) + showcapture = self.config.option.showcapture + if showcapture == "no": + return + for secname, content in rep.sections: + if showcapture != "all" and showcapture not in secname: + continue + self._tw.sep("-", secname) + if content[-1:] == "\n": + content = content[:-1] + self._tw.line(content) + + def summary_stats(self) -> None: + if self.verbosity < -1: + return + + session_duration = timing.time() - self._sessionstarttime + (parts, main_color) = self.build_summary_stats_line() + line_parts = [] + + display_sep = self.verbosity >= 0 + if display_sep: + fullwidth = self._tw.fullwidth + for text, markup in parts: + with_markup = self._tw.markup(text, **markup) + if display_sep: + fullwidth += len(with_markup) - len(text) + line_parts.append(with_markup) + msg = ", ".join(line_parts) + + main_markup = {main_color: True} + duration = f" in {format_session_duration(session_duration)}" + duration_with_markup = self._tw.markup(duration, **main_markup) + if display_sep: + fullwidth += len(duration_with_markup) - len(duration) + msg += duration_with_markup + + if display_sep: + markup_for_end_sep = self._tw.markup("", **main_markup) + if markup_for_end_sep.endswith("\x1b[0m"): + markup_for_end_sep = markup_for_end_sep[:-4] + fullwidth += len(markup_for_end_sep) + msg += markup_for_end_sep + + if display_sep: + self.write_sep("=", msg, fullwidth=fullwidth, **main_markup) + else: + self.write_line(msg, **main_markup) + + def short_test_summary(self) -> None: + if not self.reportchars: + return + + def show_simple(lines: List[str], *, stat: str) -> None: + failed = self.stats.get(stat, []) + if not failed: + return + config = self.config + for rep in failed: + color = _color_for_type.get(stat, _color_for_type_default) + line = _get_line_with_reprcrash_message( + config, rep, self._tw, {color: True} + ) + lines.append(line) + + def show_xfailed(lines: List[str]) -> None: + xfailed = self.stats.get("xfailed", []) + for rep in xfailed: + verbose_word = rep._get_verbose_word(self.config) + markup_word = self._tw.markup( + verbose_word, **{_color_for_type["warnings"]: True} + ) + nodeid = _get_node_id_with_markup(self._tw, self.config, rep) + line = f"{markup_word} {nodeid}" + reason = rep.wasxfail + if reason: + line += " - " + str(reason) + + lines.append(line) + + def show_xpassed(lines: List[str]) -> None: + xpassed = self.stats.get("xpassed", []) + for rep in xpassed: + verbose_word = rep._get_verbose_word(self.config) + markup_word = self._tw.markup( + verbose_word, **{_color_for_type["warnings"]: True} + ) + nodeid = _get_node_id_with_markup(self._tw, self.config, rep) + reason = rep.wasxfail + lines.append(f"{markup_word} {nodeid} {reason}") + + def show_skipped(lines: List[str]) -> None: + skipped: List[CollectReport] = self.stats.get("skipped", []) + fskips = _folded_skips(self.startpath, skipped) if skipped else [] + if not fskips: + return + verbose_word = skipped[0]._get_verbose_word(self.config) + markup_word = self._tw.markup( + verbose_word, **{_color_for_type["warnings"]: True} + ) + prefix = "Skipped: " + for num, fspath, lineno, reason in fskips: + if reason.startswith(prefix): + reason = reason[len(prefix) :] + if lineno is not None: + lines.append( + "%s [%d] %s:%d: %s" % (markup_word, num, fspath, lineno, reason) + ) + else: + lines.append("%s [%d] %s: %s" % (markup_word, num, fspath, reason)) + + REPORTCHAR_ACTIONS: Mapping[str, Callable[[List[str]], None]] = { + "x": show_xfailed, + "X": show_xpassed, + "f": partial(show_simple, stat="failed"), + "s": show_skipped, + "p": partial(show_simple, stat="passed"), + "E": partial(show_simple, stat="error"), + } + + lines: List[str] = [] + for char in self.reportchars: + action = REPORTCHAR_ACTIONS.get(char) + if action: # skipping e.g. "P" (passed with output) here. + action(lines) + + if lines: + self.write_sep("=", "short test summary info", cyan=True, bold=True) + for line in lines: + self.write_line(line) + + def _get_main_color(self) -> Tuple[str, List[str]]: + if self._main_color is None or self._known_types is None or self._is_last_item: + self._set_main_color() + assert self._main_color + assert self._known_types + return self._main_color, self._known_types + + def _determine_main_color(self, unknown_type_seen: bool) -> str: + stats = self.stats + if "failed" in stats or "error" in stats: + main_color = "red" + elif "warnings" in stats or "xpassed" in stats or unknown_type_seen: + main_color = "yellow" + elif "passed" in stats or not self._is_last_item: + main_color = "green" + else: + main_color = "yellow" + return main_color + + def _set_main_color(self) -> None: + unknown_types: List[str] = [] + for found_type in self.stats.keys(): + if found_type: # setup/teardown reports have an empty key, ignore them + if found_type not in KNOWN_TYPES and found_type not in unknown_types: + unknown_types.append(found_type) + self._known_types = list(KNOWN_TYPES) + unknown_types + self._main_color = self._determine_main_color(bool(unknown_types)) + + def build_summary_stats_line(self) -> Tuple[List[Tuple[str, Dict[str, bool]]], str]: + """ + Build the parts used in the last summary stats line. + + The summary stats line is the line shown at the end, "=== 12 passed, 2 errors in Xs===". + + This function builds a list of the "parts" that make up for the text in that line, in + the example above it would be: + + [ + ("12 passed", {"green": True}), + ("2 errors", {"red": True} + ] + + That last dict for each line is a "markup dictionary", used by TerminalWriter to + color output. + + The final color of the line is also determined by this function, and is the second + element of the returned tuple. + """ + if self.config.getoption("collectonly"): + return self._build_collect_only_summary_stats_line() + else: + return self._build_normal_summary_stats_line() + + def _get_reports_to_display(self, key: str) -> List[Any]: + """Get test/collection reports for the given status key, such as `passed` or `error`.""" + reports = self.stats.get(key, []) + return [x for x in reports if getattr(x, "count_towards_summary", True)] + + def _build_normal_summary_stats_line( + self, + ) -> Tuple[List[Tuple[str, Dict[str, bool]]], str]: + main_color, known_types = self._get_main_color() + parts = [] + + for key in known_types: + reports = self._get_reports_to_display(key) + if reports: + count = len(reports) + color = _color_for_type.get(key, _color_for_type_default) + markup = {color: True, "bold": color == main_color} + parts.append(("%d %s" % pluralize(count, key), markup)) + + if not parts: + parts = [("no tests ran", {_color_for_type_default: True})] + + return parts, main_color + + def _build_collect_only_summary_stats_line( + self, + ) -> Tuple[List[Tuple[str, Dict[str, bool]]], str]: + deselected = len(self._get_reports_to_display("deselected")) + errors = len(self._get_reports_to_display("error")) + + if self._numcollected == 0: + parts = [("no tests collected", {"yellow": True})] + main_color = "yellow" + + elif deselected == 0: + main_color = "green" + collected_output = "%d %s collected" % pluralize(self._numcollected, "test") + parts = [(collected_output, {main_color: True})] + else: + all_tests_were_deselected = self._numcollected == deselected + if all_tests_were_deselected: + main_color = "yellow" + collected_output = f"no tests collected ({deselected} deselected)" + else: + main_color = "green" + selected = self._numcollected - deselected + collected_output = f"{selected}/{self._numcollected} tests collected ({deselected} deselected)" + + parts = [(collected_output, {main_color: True})] + + if errors: + main_color = _color_for_type["error"] + parts += [("%d %s" % pluralize(errors, "error"), {main_color: True})] + + return parts, main_color + + +def _get_node_id_with_markup(tw: TerminalWriter, config: Config, rep: BaseReport): + nodeid = config.cwd_relative_nodeid(rep.nodeid) + path, *parts = nodeid.split("::") + if parts: + parts_markup = tw.markup("::".join(parts), bold=True) + return path + "::" + parts_markup + else: + return path + + +def _format_trimmed(format: str, msg: str, available_width: int) -> Optional[str]: + """Format msg into format, ellipsizing it if doesn't fit in available_width. + + Returns None if even the ellipsis can't fit. + """ + # Only use the first line. + i = msg.find("\n") + if i != -1: + msg = msg[:i] + + ellipsis = "..." + format_width = wcswidth(format.format("")) + if format_width + len(ellipsis) > available_width: + return None + + if format_width + wcswidth(msg) > available_width: + available_width -= len(ellipsis) + msg = msg[:available_width] + while format_width + wcswidth(msg) > available_width: + msg = msg[:-1] + msg += ellipsis + + return format.format(msg) + + +def _get_line_with_reprcrash_message( + config: Config, rep: BaseReport, tw: TerminalWriter, word_markup: Dict[str, bool] +) -> str: + """Get summary line for a report, trying to add reprcrash message.""" + verbose_word = rep._get_verbose_word(config) + word = tw.markup(verbose_word, **word_markup) + node = _get_node_id_with_markup(tw, config, rep) + + line = f"{word} {node}" + line_width = wcswidth(line) + + try: + # Type ignored intentionally -- possible AttributeError expected. + msg = rep.longrepr.reprcrash.message # type: ignore[union-attr] + except AttributeError: + pass + else: + if not running_on_ci(): + available_width = tw.fullwidth - line_width + msg = _format_trimmed(" - {}", msg, available_width) + else: + msg = f" - {msg}" + if msg is not None: + line += msg + + return line + + +def _folded_skips( + startpath: Path, + skipped: Sequence[CollectReport], +) -> List[Tuple[int, str, Optional[int], str]]: + d: Dict[Tuple[str, Optional[int], str], List[CollectReport]] = {} + for event in skipped: + assert event.longrepr is not None + assert isinstance(event.longrepr, tuple), (event, event.longrepr) + assert len(event.longrepr) == 3, (event, event.longrepr) + fspath, lineno, reason = event.longrepr + # For consistency, report all fspaths in relative form. + fspath = bestrelpath(startpath, Path(fspath)) + keywords = getattr(event, "keywords", {}) + # Folding reports with global pytestmark variable. + # This is a workaround, because for now we cannot identify the scope of a skip marker + # TODO: Revisit after marks scope would be fixed. + if ( + event.when == "setup" + and "skip" in keywords + and "pytestmark" not in keywords + ): + key: Tuple[str, Optional[int], str] = (fspath, None, reason) + else: + key = (fspath, lineno, reason) + d.setdefault(key, []).append(event) + values: List[Tuple[int, str, Optional[int], str]] = [] + for key, events in d.items(): + values.append((len(events), *key)) + return values + + +_color_for_type = { + "failed": "red", + "error": "red", + "warnings": "yellow", + "passed": "green", +} +_color_for_type_default = "yellow" + + +def pluralize(count: int, noun: str) -> Tuple[int, str]: + # No need to pluralize words such as `failed` or `passed`. + if noun not in ["error", "warnings", "test"]: + return count, noun + + # The `warnings` key is plural. To avoid API breakage, we keep it that way but + # set it to singular here so we can determine plurality in the same way as we do + # for `error`. + noun = noun.replace("warnings", "warning") + + return count, noun + "s" if count != 1 else noun + + +def _plugin_nameversions(plugininfo) -> List[str]: + values: List[str] = [] + for plugin, dist in plugininfo: + # Gets us name and version! + name = "{dist.project_name}-{dist.version}".format(dist=dist) + # Questionable convenience, but it keeps things short. + if name.startswith("pytest-"): + name = name[7:] + # We decided to print python package names they can have more than one plugin. + if name not in values: + values.append(name) + return values + + +def format_session_duration(seconds: float) -> str: + """Format the given seconds in a human readable manner to show in the final summary.""" + if seconds < 60: + return f"{seconds:.2f}s" + else: + dt = datetime.timedelta(seconds=int(seconds)) + return f"{seconds:.2f}s ({dt})" + + +def _get_raw_skip_reason(report: TestReport) -> str: + """Get the reason string of a skip/xfail/xpass test report. + + The string is just the part given by the user. + """ + if hasattr(report, "wasxfail"): + reason = cast(str, report.wasxfail) + if reason.startswith("reason: "): + reason = reason[len("reason: ") :] + return reason + else: + assert report.skipped + assert isinstance(report.longrepr, tuple) + _, _, reason = report.longrepr + if reason.startswith("Skipped: "): + reason = reason[len("Skipped: ") :] + elif reason == "Skipped": + reason = "" + return reason diff --git a/utils/python-venv/Lib/site-packages/_pytest/threadexception.py b/utils/python-venv/Lib/site-packages/_pytest/threadexception.py new file mode 100644 index 0000000..43341e7 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/threadexception.py @@ -0,0 +1,88 @@ +import threading +import traceback +import warnings +from types import TracebackType +from typing import Any +from typing import Callable +from typing import Generator +from typing import Optional +from typing import Type + +import pytest + + +# Copied from cpython/Lib/test/support/threading_helper.py, with modifications. +class catch_threading_exception: + """Context manager catching threading.Thread exception using + threading.excepthook. + + Storing exc_value using a custom hook can create a reference cycle. The + reference cycle is broken explicitly when the context manager exits. + + Storing thread using a custom hook can resurrect it if it is set to an + object which is being finalized. Exiting the context manager clears the + stored object. + + Usage: + with threading_helper.catch_threading_exception() as cm: + # code spawning a thread which raises an exception + ... + # check the thread exception: use cm.args + ... + # cm.args attribute no longer exists at this point + # (to break a reference cycle) + """ + + def __init__(self) -> None: + self.args: Optional["threading.ExceptHookArgs"] = None + self._old_hook: Optional[Callable[["threading.ExceptHookArgs"], Any]] = None + + def _hook(self, args: "threading.ExceptHookArgs") -> None: + self.args = args + + def __enter__(self) -> "catch_threading_exception": + self._old_hook = threading.excepthook + threading.excepthook = self._hook + return self + + def __exit__( + self, + exc_type: Optional[Type[BaseException]], + exc_val: Optional[BaseException], + exc_tb: Optional[TracebackType], + ) -> None: + assert self._old_hook is not None + threading.excepthook = self._old_hook + self._old_hook = None + del self.args + + +def thread_exception_runtest_hook() -> Generator[None, None, None]: + with catch_threading_exception() as cm: + yield + if cm.args: + thread_name = "" if cm.args.thread is None else cm.args.thread.name + msg = f"Exception in thread {thread_name}\n\n" + msg += "".join( + traceback.format_exception( + cm.args.exc_type, + cm.args.exc_value, + cm.args.exc_traceback, + ) + ) + warnings.warn(pytest.PytestUnhandledThreadExceptionWarning(msg)) + + +@pytest.hookimpl(hookwrapper=True, trylast=True) +def pytest_runtest_setup() -> Generator[None, None, None]: + yield from thread_exception_runtest_hook() + + +@pytest.hookimpl(hookwrapper=True, tryfirst=True) +def pytest_runtest_call() -> Generator[None, None, None]: + yield from thread_exception_runtest_hook() + + +@pytest.hookimpl(hookwrapper=True, tryfirst=True) +def pytest_runtest_teardown() -> Generator[None, None, None]: + yield from thread_exception_runtest_hook() diff --git a/utils/python-venv/Lib/site-packages/_pytest/timing.py b/utils/python-venv/Lib/site-packages/_pytest/timing.py new file mode 100644 index 0000000..925163a --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/timing.py @@ -0,0 +1,12 @@ +"""Indirection for time functions. + +We intentionally grab some "time" functions internally to avoid tests mocking "time" to affect +pytest runtime information (issue #185). + +Fixture "mock_timing" also interacts with this module for pytest's own tests. +""" +from time import perf_counter +from time import sleep +from time import time + +__all__ = ["perf_counter", "sleep", "time"] diff --git a/utils/python-venv/Lib/site-packages/_pytest/tmpdir.py b/utils/python-venv/Lib/site-packages/_pytest/tmpdir.py new file mode 100644 index 0000000..9497a0d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/tmpdir.py @@ -0,0 +1,216 @@ +"""Support for providing temporary directories to test functions.""" +import os +import re +import sys +import tempfile +from pathlib import Path +from typing import Optional + +import attr + +from .pathlib import LOCK_TIMEOUT +from .pathlib import make_numbered_dir +from .pathlib import make_numbered_dir_with_cleanup +from .pathlib import rm_rf +from _pytest.compat import final +from _pytest.config import Config +from _pytest.deprecated import check_ispytest +from _pytest.fixtures import fixture +from _pytest.fixtures import FixtureRequest +from _pytest.monkeypatch import MonkeyPatch + + +@final +@attr.s(init=False) +class TempPathFactory: + """Factory for temporary directories under the common base temp directory. + + The base directory can be configured using the ``--basetemp`` option. + """ + + _given_basetemp = attr.ib(type=Optional[Path]) + _trace = attr.ib() + _basetemp = attr.ib(type=Optional[Path]) + + def __init__( + self, + given_basetemp: Optional[Path], + trace, + basetemp: Optional[Path] = None, + *, + _ispytest: bool = False, + ) -> None: + check_ispytest(_ispytest) + if given_basetemp is None: + self._given_basetemp = None + else: + # Use os.path.abspath() to get absolute path instead of resolve() as it + # does not work the same in all platforms (see #4427). + # Path.absolute() exists, but it is not public (see https://bugs.python.org/issue25012). + self._given_basetemp = Path(os.path.abspath(str(given_basetemp))) + self._trace = trace + self._basetemp = basetemp + + @classmethod + def from_config( + cls, + config: Config, + *, + _ispytest: bool = False, + ) -> "TempPathFactory": + """Create a factory according to pytest configuration. + + :meta private: + """ + check_ispytest(_ispytest) + return cls( + given_basetemp=config.option.basetemp, + trace=config.trace.get("tmpdir"), + _ispytest=True, + ) + + def _ensure_relative_to_basetemp(self, basename: str) -> str: + basename = os.path.normpath(basename) + if (self.getbasetemp() / basename).resolve().parent != self.getbasetemp(): + raise ValueError(f"{basename} is not a normalized and relative path") + return basename + + def mktemp(self, basename: str, numbered: bool = True) -> Path: + """Create a new temporary directory managed by the factory. + + :param basename: + Directory base name, must be a relative path. + + :param numbered: + If ``True``, ensure the directory is unique by adding a numbered + suffix greater than any existing one: ``basename="foo-"`` and ``numbered=True`` + means that this function will create directories named ``"foo-0"``, + ``"foo-1"``, ``"foo-2"`` and so on. + + :returns: + The path to the new directory. + """ + basename = self._ensure_relative_to_basetemp(basename) + if not numbered: + p = self.getbasetemp().joinpath(basename) + p.mkdir(mode=0o700) + else: + p = make_numbered_dir(root=self.getbasetemp(), prefix=basename, mode=0o700) + self._trace("mktemp", p) + return p + + def getbasetemp(self) -> Path: + """Return the base temporary directory, creating it if needed. + + :returns: + The base temporary directory. + """ + if self._basetemp is not None: + return self._basetemp + + if self._given_basetemp is not None: + basetemp = self._given_basetemp + if basetemp.exists(): + rm_rf(basetemp) + basetemp.mkdir(mode=0o700) + basetemp = basetemp.resolve() + else: + from_env = os.environ.get("PYTEST_DEBUG_TEMPROOT") + temproot = Path(from_env or tempfile.gettempdir()).resolve() + user = get_user() or "unknown" + # use a sub-directory in the temproot to speed-up + # make_numbered_dir() call + rootdir = temproot.joinpath(f"pytest-of-{user}") + try: + rootdir.mkdir(mode=0o700, exist_ok=True) + except OSError: + # getuser() likely returned illegal characters for the platform, use unknown back off mechanism + rootdir = temproot.joinpath("pytest-of-unknown") + rootdir.mkdir(mode=0o700, exist_ok=True) + # Because we use exist_ok=True with a predictable name, make sure + # we are the owners, to prevent any funny business (on unix, where + # temproot is usually shared). + # Also, to keep things private, fixup any world-readable temp + # rootdir's permissions. Historically 0o755 was used, so we can't + # just error out on this, at least for a while. + if sys.platform != "win32": + uid = os.getuid() + rootdir_stat = rootdir.stat() + # getuid shouldn't fail, but cpython defines such a case. + # Let's hope for the best. + if uid != -1: + if rootdir_stat.st_uid != uid: + raise OSError( + f"The temporary directory {rootdir} is not owned by the current user. " + "Fix this and try again." + ) + if (rootdir_stat.st_mode & 0o077) != 0: + os.chmod(rootdir, rootdir_stat.st_mode & ~0o077) + basetemp = make_numbered_dir_with_cleanup( + prefix="pytest-", + root=rootdir, + keep=3, + lock_timeout=LOCK_TIMEOUT, + mode=0o700, + ) + assert basetemp is not None, basetemp + self._basetemp = basetemp + self._trace("new basetemp", basetemp) + return basetemp + + +def get_user() -> Optional[str]: + """Return the current user name, or None if getuser() does not work + in the current environment (see #1010).""" + try: + # In some exotic environments, getpass may not be importable. + import getpass + + return getpass.getuser() + except (ImportError, KeyError): + return None + + +def pytest_configure(config: Config) -> None: + """Create a TempPathFactory and attach it to the config object. + + This is to comply with existing plugins which expect the handler to be + available at pytest_configure time, but ideally should be moved entirely + to the tmp_path_factory session fixture. + """ + mp = MonkeyPatch() + config.add_cleanup(mp.undo) + _tmp_path_factory = TempPathFactory.from_config(config, _ispytest=True) + mp.setattr(config, "_tmp_path_factory", _tmp_path_factory, raising=False) + + +@fixture(scope="session") +def tmp_path_factory(request: FixtureRequest) -> TempPathFactory: + """Return a :class:`pytest.TempPathFactory` instance for the test session.""" + # Set dynamically by pytest_configure() above. + return request.config._tmp_path_factory # type: ignore + + +def _mk_tmp(request: FixtureRequest, factory: TempPathFactory) -> Path: + name = request.node.name + name = re.sub(r"[\W]", "_", name) + MAXVAL = 30 + name = name[:MAXVAL] + return factory.mktemp(name, numbered=True) + + +@fixture +def tmp_path(request: FixtureRequest, tmp_path_factory: TempPathFactory) -> Path: + """Return a temporary directory path object which is unique to each test + function invocation, created as a sub directory of the base temporary + directory. + + By default, a new base temporary directory is created each test session, + and old bases are removed after 3 sessions, to aid in debugging. If + ``--basetemp`` is used then it is cleared each session. See :ref:`base + temporary directory`. + + The returned object is a :class:`pathlib.Path` object. + """ + + return _mk_tmp(request, tmp_path_factory) diff --git a/utils/python-venv/Lib/site-packages/_pytest/unittest.py b/utils/python-venv/Lib/site-packages/_pytest/unittest.py new file mode 100644 index 0000000..c2df986 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/unittest.py @@ -0,0 +1,417 @@ +"""Discover and run std-library "unittest" style tests.""" +import sys +import traceback +import types +from typing import Any +from typing import Callable +from typing import Generator +from typing import Iterable +from typing import List +from typing import Optional +from typing import Tuple +from typing import Type +from typing import TYPE_CHECKING +from typing import Union + +import _pytest._code +import pytest +from _pytest.compat import getimfunc +from _pytest.compat import is_async_function +from _pytest.config import hookimpl +from _pytest.fixtures import FixtureRequest +from _pytest.nodes import Collector +from _pytest.nodes import Item +from _pytest.outcomes import exit +from _pytest.outcomes import fail +from _pytest.outcomes import skip +from _pytest.outcomes import xfail +from _pytest.python import Class +from _pytest.python import Function +from _pytest.python import Module +from _pytest.runner import CallInfo +from _pytest.scope import Scope + +if TYPE_CHECKING: + import unittest + import twisted.trial.unittest + + _SysExcInfoType = Union[ + Tuple[Type[BaseException], BaseException, types.TracebackType], + Tuple[None, None, None], + ] + + +def pytest_pycollect_makeitem( + collector: Union[Module, Class], name: str, obj: object +) -> Optional["UnitTestCase"]: + # Has unittest been imported and is obj a subclass of its TestCase? + try: + ut = sys.modules["unittest"] + # Type ignored because `ut` is an opaque module. + if not issubclass(obj, ut.TestCase): # type: ignore + return None + except Exception: + return None + # Yes, so let's collect it. + item: UnitTestCase = UnitTestCase.from_parent(collector, name=name, obj=obj) + return item + + +class UnitTestCase(Class): + # Marker for fixturemanger.getfixtureinfo() + # to declare that our children do not support funcargs. + nofuncargs = True + + def collect(self) -> Iterable[Union[Item, Collector]]: + from unittest import TestLoader + + cls = self.obj + if not getattr(cls, "__test__", True): + return + + skipped = _is_skipped(cls) + if not skipped: + self._inject_setup_teardown_fixtures(cls) + self._inject_setup_class_fixture() + + self.session._fixturemanager.parsefactories(self, unittest=True) + loader = TestLoader() + foundsomething = False + for name in loader.getTestCaseNames(self.obj): + x = getattr(self.obj, name) + if not getattr(x, "__test__", True): + continue + funcobj = getimfunc(x) + yield TestCaseFunction.from_parent(self, name=name, callobj=funcobj) + foundsomething = True + + if not foundsomething: + runtest = getattr(self.obj, "runTest", None) + if runtest is not None: + ut = sys.modules.get("twisted.trial.unittest", None) + # Type ignored because `ut` is an opaque module. + if ut is None or runtest != ut.TestCase.runTest: # type: ignore + yield TestCaseFunction.from_parent(self, name="runTest") + + def _inject_setup_teardown_fixtures(self, cls: type) -> None: + """Injects a hidden auto-use fixture to invoke setUpClass/setup_method and corresponding + teardown functions (#517).""" + class_fixture = _make_xunit_fixture( + cls, + "setUpClass", + "tearDownClass", + "doClassCleanups", + scope=Scope.Class, + pass_self=False, + ) + if class_fixture: + cls.__pytest_class_setup = class_fixture # type: ignore[attr-defined] + + method_fixture = _make_xunit_fixture( + cls, + "setup_method", + "teardown_method", + None, + scope=Scope.Function, + pass_self=True, + ) + if method_fixture: + cls.__pytest_method_setup = method_fixture # type: ignore[attr-defined] + + +def _make_xunit_fixture( + obj: type, + setup_name: str, + teardown_name: str, + cleanup_name: Optional[str], + scope: Scope, + pass_self: bool, +): + setup = getattr(obj, setup_name, None) + teardown = getattr(obj, teardown_name, None) + if setup is None and teardown is None: + return None + + if cleanup_name: + cleanup = getattr(obj, cleanup_name, lambda *args: None) + else: + + def cleanup(*args): + pass + + @pytest.fixture( + scope=scope.value, + autouse=True, + # Use a unique name to speed up lookup. + name=f"_unittest_{setup_name}_fixture_{obj.__qualname__}", + ) + def fixture(self, request: FixtureRequest) -> Generator[None, None, None]: + if _is_skipped(self): + reason = self.__unittest_skip_why__ + raise pytest.skip.Exception(reason, _use_item_location=True) + if setup is not None: + try: + if pass_self: + setup(self, request.function) + else: + setup() + # unittest does not call the cleanup function for every BaseException, so we + # follow this here. + except Exception: + if pass_self: + cleanup(self) + else: + cleanup() + + raise + yield + try: + if teardown is not None: + if pass_self: + teardown(self, request.function) + else: + teardown() + finally: + if pass_self: + cleanup(self) + else: + cleanup() + + return fixture + + +class TestCaseFunction(Function): + nofuncargs = True + _excinfo: Optional[List[_pytest._code.ExceptionInfo[BaseException]]] = None + _testcase: Optional["unittest.TestCase"] = None + + def _getobj(self): + assert self.parent is not None + # Unlike a regular Function in a Class, where `item.obj` returns + # a *bound* method (attached to an instance), TestCaseFunction's + # `obj` returns an *unbound* method (not attached to an instance). + # This inconsistency is probably not desirable, but needs some + # consideration before changing. + return getattr(self.parent.obj, self.originalname) # type: ignore[attr-defined] + + def setup(self) -> None: + # A bound method to be called during teardown() if set (see 'runtest()'). + self._explicit_tearDown: Optional[Callable[[], None]] = None + assert self.parent is not None + self._testcase = self.parent.obj(self.name) # type: ignore[attr-defined] + self._obj = getattr(self._testcase, self.name) + if hasattr(self, "_request"): + self._request._fillfixtures() + + def teardown(self) -> None: + if self._explicit_tearDown is not None: + self._explicit_tearDown() + self._explicit_tearDown = None + self._testcase = None + self._obj = None + + def startTest(self, testcase: "unittest.TestCase") -> None: + pass + + def _addexcinfo(self, rawexcinfo: "_SysExcInfoType") -> None: + # Unwrap potential exception info (see twisted trial support below). + rawexcinfo = getattr(rawexcinfo, "_rawexcinfo", rawexcinfo) + try: + excinfo = _pytest._code.ExceptionInfo[BaseException].from_exc_info(rawexcinfo) # type: ignore[arg-type] + # Invoke the attributes to trigger storing the traceback + # trial causes some issue there. + excinfo.value + excinfo.traceback + except TypeError: + try: + try: + values = traceback.format_exception(*rawexcinfo) + values.insert( + 0, + "NOTE: Incompatible Exception Representation, " + "displaying natively:\n\n", + ) + fail("".join(values), pytrace=False) + except (fail.Exception, KeyboardInterrupt): + raise + except BaseException: + fail( + "ERROR: Unknown Incompatible Exception " + "representation:\n%r" % (rawexcinfo,), + pytrace=False, + ) + except KeyboardInterrupt: + raise + except fail.Exception: + excinfo = _pytest._code.ExceptionInfo.from_current() + self.__dict__.setdefault("_excinfo", []).append(excinfo) + + def addError( + self, testcase: "unittest.TestCase", rawexcinfo: "_SysExcInfoType" + ) -> None: + try: + if isinstance(rawexcinfo[1], exit.Exception): + exit(rawexcinfo[1].msg) + except TypeError: + pass + self._addexcinfo(rawexcinfo) + + def addFailure( + self, testcase: "unittest.TestCase", rawexcinfo: "_SysExcInfoType" + ) -> None: + self._addexcinfo(rawexcinfo) + + def addSkip(self, testcase: "unittest.TestCase", reason: str) -> None: + try: + raise pytest.skip.Exception(reason, _use_item_location=True) + except skip.Exception: + self._addexcinfo(sys.exc_info()) + + def addExpectedFailure( + self, + testcase: "unittest.TestCase", + rawexcinfo: "_SysExcInfoType", + reason: str = "", + ) -> None: + try: + xfail(str(reason)) + except xfail.Exception: + self._addexcinfo(sys.exc_info()) + + def addUnexpectedSuccess( + self, + testcase: "unittest.TestCase", + reason: Optional["twisted.trial.unittest.Todo"] = None, + ) -> None: + msg = "Unexpected success" + if reason: + msg += f": {reason.reason}" + # Preserve unittest behaviour - fail the test. Explicitly not an XPASS. + try: + fail(msg, pytrace=False) + except fail.Exception: + self._addexcinfo(sys.exc_info()) + + def addSuccess(self, testcase: "unittest.TestCase") -> None: + pass + + def stopTest(self, testcase: "unittest.TestCase") -> None: + pass + + def runtest(self) -> None: + from _pytest.debugging import maybe_wrap_pytest_function_for_tracing + + assert self._testcase is not None + + maybe_wrap_pytest_function_for_tracing(self) + + # Let the unittest framework handle async functions. + if is_async_function(self.obj): + # Type ignored because self acts as the TestResult, but is not actually one. + self._testcase(result=self) # type: ignore[arg-type] + else: + # When --pdb is given, we want to postpone calling tearDown() otherwise + # when entering the pdb prompt, tearDown() would have probably cleaned up + # instance variables, which makes it difficult to debug. + # Arguably we could always postpone tearDown(), but this changes the moment where the + # TestCase instance interacts with the results object, so better to only do it + # when absolutely needed. + # We need to consider if the test itself is skipped, or the whole class. + assert isinstance(self.parent, UnitTestCase) + skipped = _is_skipped(self.obj) or _is_skipped(self.parent.obj) + if self.config.getoption("usepdb") and not skipped: + self._explicit_tearDown = self._testcase.tearDown + setattr(self._testcase, "tearDown", lambda *args: None) + + # We need to update the actual bound method with self.obj, because + # wrap_pytest_function_for_tracing replaces self.obj by a wrapper. + setattr(self._testcase, self.name, self.obj) + try: + self._testcase(result=self) # type: ignore[arg-type] + finally: + delattr(self._testcase, self.name) + + def _prunetraceback( + self, excinfo: _pytest._code.ExceptionInfo[BaseException] + ) -> None: + super()._prunetraceback(excinfo) + traceback = excinfo.traceback.filter( + lambda x: not x.frame.f_globals.get("__unittest") + ) + if traceback: + excinfo.traceback = traceback + + +@hookimpl(tryfirst=True) +def pytest_runtest_makereport(item: Item, call: CallInfo[None]) -> None: + if isinstance(item, TestCaseFunction): + if item._excinfo: + call.excinfo = item._excinfo.pop(0) + try: + del call.result + except AttributeError: + pass + + # Convert unittest.SkipTest to pytest.skip. + # This is actually only needed for nose, which reuses unittest.SkipTest for + # its own nose.SkipTest. For unittest TestCases, SkipTest is already + # handled internally, and doesn't reach here. + unittest = sys.modules.get("unittest") + if ( + unittest + and call.excinfo + and isinstance(call.excinfo.value, unittest.SkipTest) # type: ignore[attr-defined] + ): + excinfo = call.excinfo + call2 = CallInfo[None].from_call( + lambda: pytest.skip(str(excinfo.value)), call.when + ) + call.excinfo = call2.excinfo + + +# Twisted trial support. + + +@hookimpl(hookwrapper=True) +def pytest_runtest_protocol(item: Item) -> Generator[None, None, None]: + if isinstance(item, TestCaseFunction) and "twisted.trial.unittest" in sys.modules: + ut: Any = sys.modules["twisted.python.failure"] + Failure__init__ = ut.Failure.__init__ + check_testcase_implements_trial_reporter() + + def excstore( + self, exc_value=None, exc_type=None, exc_tb=None, captureVars=None + ): + if exc_value is None: + self._rawexcinfo = sys.exc_info() + else: + if exc_type is None: + exc_type = type(exc_value) + self._rawexcinfo = (exc_type, exc_value, exc_tb) + try: + Failure__init__( + self, exc_value, exc_type, exc_tb, captureVars=captureVars + ) + except TypeError: + Failure__init__(self, exc_value, exc_type, exc_tb) + + ut.Failure.__init__ = excstore + yield + ut.Failure.__init__ = Failure__init__ + else: + yield + + +def check_testcase_implements_trial_reporter(done: List[int] = []) -> None: + if done: + return + from zope.interface import classImplements + from twisted.trial.itrial import IReporter + + classImplements(TestCaseFunction, IReporter) + done.append(1) + + +def _is_skipped(obj) -> bool: + """Return True if the given object has been marked with @unittest.skip.""" + return bool(getattr(obj, "__unittest_skip__", False)) diff --git a/utils/python-venv/Lib/site-packages/_pytest/unraisableexception.py b/utils/python-venv/Lib/site-packages/_pytest/unraisableexception.py new file mode 100644 index 0000000..fcb5d82 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/unraisableexception.py @@ -0,0 +1,93 @@ +import sys +import traceback +import warnings +from types import TracebackType +from typing import Any +from typing import Callable +from typing import Generator +from typing import Optional +from typing import Type + +import pytest + + +# Copied from cpython/Lib/test/support/__init__.py, with modifications. +class catch_unraisable_exception: + """Context manager catching unraisable exception using sys.unraisablehook. + + Storing the exception value (cm.unraisable.exc_value) creates a reference + cycle. The reference cycle is broken explicitly when the context manager + exits. + + Storing the object (cm.unraisable.object) can resurrect it if it is set to + an object which is being finalized. Exiting the context manager clears the + stored object. + + Usage: + with catch_unraisable_exception() as cm: + # code creating an "unraisable exception" + ... + # check the unraisable exception: use cm.unraisable + ... + # cm.unraisable attribute no longer exists at this point + # (to break a reference cycle) + """ + + def __init__(self) -> None: + self.unraisable: Optional["sys.UnraisableHookArgs"] = None + self._old_hook: Optional[Callable[["sys.UnraisableHookArgs"], Any]] = None + + def _hook(self, unraisable: "sys.UnraisableHookArgs") -> None: + # Storing unraisable.object can resurrect an object which is being + # finalized. Storing unraisable.exc_value creates a reference cycle. + self.unraisable = unraisable + + def __enter__(self) -> "catch_unraisable_exception": + self._old_hook = sys.unraisablehook + sys.unraisablehook = self._hook + return self + + def __exit__( + self, + exc_type: Optional[Type[BaseException]], + exc_val: Optional[BaseException], + exc_tb: Optional[TracebackType], + ) -> None: + assert self._old_hook is not None + sys.unraisablehook = self._old_hook + self._old_hook = None + del self.unraisable + + +def unraisable_exception_runtest_hook() -> Generator[None, None, None]: + with catch_unraisable_exception() as cm: + yield + if cm.unraisable: + if cm.unraisable.err_msg is not None: + err_msg = cm.unraisable.err_msg + else: + err_msg = "Exception ignored in" + msg = f"{err_msg}: {cm.unraisable.object!r}\n\n" + msg += "".join( + traceback.format_exception( + cm.unraisable.exc_type, + cm.unraisable.exc_value, + cm.unraisable.exc_traceback, + ) + ) + warnings.warn(pytest.PytestUnraisableExceptionWarning(msg)) + + +@pytest.hookimpl(hookwrapper=True, tryfirst=True) +def pytest_runtest_setup() -> Generator[None, None, None]: + yield from unraisable_exception_runtest_hook() + + +@pytest.hookimpl(hookwrapper=True, tryfirst=True) +def pytest_runtest_call() -> Generator[None, None, None]: + yield from unraisable_exception_runtest_hook() + + +@pytest.hookimpl(hookwrapper=True, tryfirst=True) +def pytest_runtest_teardown() -> Generator[None, None, None]: + yield from unraisable_exception_runtest_hook() diff --git a/utils/python-venv/Lib/site-packages/_pytest/warning_types.py b/utils/python-venv/Lib/site-packages/_pytest/warning_types.py new file mode 100644 index 0000000..620860c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/warning_types.py @@ -0,0 +1,171 @@ +import inspect +import warnings +from types import FunctionType +from typing import Any +from typing import Generic +from typing import Type +from typing import TypeVar + +import attr + +from _pytest.compat import final + + +class PytestWarning(UserWarning): + """Base class for all warnings emitted by pytest.""" + + __module__ = "pytest" + + +@final +class PytestAssertRewriteWarning(PytestWarning): + """Warning emitted by the pytest assert rewrite module.""" + + __module__ = "pytest" + + +@final +class PytestCacheWarning(PytestWarning): + """Warning emitted by the cache plugin in various situations.""" + + __module__ = "pytest" + + +@final +class PytestConfigWarning(PytestWarning): + """Warning emitted for configuration issues.""" + + __module__ = "pytest" + + +@final +class PytestCollectionWarning(PytestWarning): + """Warning emitted when pytest is not able to collect a file or symbol in a module.""" + + __module__ = "pytest" + + +class PytestDeprecationWarning(PytestWarning, DeprecationWarning): + """Warning class for features that will be removed in a future version.""" + + __module__ = "pytest" + + +class PytestRemovedIn8Warning(PytestDeprecationWarning): + """Warning class for features that will be removed in pytest 8.""" + + __module__ = "pytest" + + +class PytestReturnNotNoneWarning(PytestRemovedIn8Warning): + """Warning emitted when a test function is returning value other than None.""" + + __module__ = "pytest" + + +@final +class PytestExperimentalApiWarning(PytestWarning, FutureWarning): + """Warning category used to denote experiments in pytest. + + Use sparingly as the API might change or even be removed completely in a + future version. + """ + + __module__ = "pytest" + + @classmethod + def simple(cls, apiname: str) -> "PytestExperimentalApiWarning": + return cls( + "{apiname} is an experimental api that may change over time".format( + apiname=apiname + ) + ) + + +@final +class PytestUnhandledCoroutineWarning(PytestReturnNotNoneWarning): + """Warning emitted for an unhandled coroutine. + + A coroutine was encountered when collecting test functions, but was not + handled by any async-aware plugin. + Coroutine test functions are not natively supported. + """ + + __module__ = "pytest" + + +@final +class PytestUnknownMarkWarning(PytestWarning): + """Warning emitted on use of unknown markers. + + See :ref:`mark` for details. + """ + + __module__ = "pytest" + + +@final +class PytestUnraisableExceptionWarning(PytestWarning): + """An unraisable exception was reported. + + Unraisable exceptions are exceptions raised in :meth:`__del__ ` + implementations and similar situations when the exception cannot be raised + as normal. + """ + + __module__ = "pytest" + + +@final +class PytestUnhandledThreadExceptionWarning(PytestWarning): + """An unhandled exception occurred in a :class:`~threading.Thread`. + + Such exceptions don't propagate normally. + """ + + __module__ = "pytest" + + +_W = TypeVar("_W", bound=PytestWarning) + + +@final +@attr.s(auto_attribs=True) +class UnformattedWarning(Generic[_W]): + """A warning meant to be formatted during runtime. + + This is used to hold warnings that need to format their message at runtime, + as opposed to a direct message. + """ + + category: Type["_W"] + template: str + + def format(self, **kwargs: Any) -> _W: + """Return an instance of the warning category, formatted with given kwargs.""" + return self.category(self.template.format(**kwargs)) + + +def warn_explicit_for(method: FunctionType, message: PytestWarning) -> None: + """ + Issue the warning :param:`message` for the definition of the given :param:`method` + + this helps to log warnigns for functions defined prior to finding an issue with them + (like hook wrappers being marked in a legacy mechanism) + """ + lineno = method.__code__.co_firstlineno + filename = inspect.getfile(method) + module = method.__module__ + mod_globals = method.__globals__ + try: + warnings.warn_explicit( + message, + type(message), + filename=filename, + module=module, + registry=mod_globals.setdefault("__warningregistry__", {}), + lineno=lineno, + ) + except Warning as w: + # If warnings are errors (e.g. -Werror), location information gets lost, so we add it to the message. + raise type(w)(f"{w}\n at {filename}:{lineno}") from None diff --git a/utils/python-venv/Lib/site-packages/_pytest/warnings.py b/utils/python-venv/Lib/site-packages/_pytest/warnings.py new file mode 100644 index 0000000..4aaa944 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_pytest/warnings.py @@ -0,0 +1,148 @@ +import sys +import warnings +from contextlib import contextmanager +from typing import Generator +from typing import Optional +from typing import TYPE_CHECKING + +import pytest +from _pytest.config import apply_warning_filters +from _pytest.config import Config +from _pytest.config import parse_warning_filter +from _pytest.main import Session +from _pytest.nodes import Item +from _pytest.terminal import TerminalReporter + +if TYPE_CHECKING: + from typing_extensions import Literal + + +def pytest_configure(config: Config) -> None: + config.addinivalue_line( + "markers", + "filterwarnings(warning): add a warning filter to the given test. " + "see https://docs.pytest.org/en/stable/how-to/capture-warnings.html#pytest-mark-filterwarnings ", + ) + + +@contextmanager +def catch_warnings_for_item( + config: Config, + ihook, + when: "Literal['config', 'collect', 'runtest']", + item: Optional[Item], +) -> Generator[None, None, None]: + """Context manager that catches warnings generated in the contained execution block. + + ``item`` can be None if we are not in the context of an item execution. + + Each warning captured triggers the ``pytest_warning_recorded`` hook. + """ + config_filters = config.getini("filterwarnings") + cmdline_filters = config.known_args_namespace.pythonwarnings or [] + with warnings.catch_warnings(record=True) as log: + # mypy can't infer that record=True means log is not None; help it. + assert log is not None + + if not sys.warnoptions: + # If user is not explicitly configuring warning filters, show deprecation warnings by default (#2908). + warnings.filterwarnings("always", category=DeprecationWarning) + warnings.filterwarnings("always", category=PendingDeprecationWarning) + + apply_warning_filters(config_filters, cmdline_filters) + + # apply filters from "filterwarnings" marks + nodeid = "" if item is None else item.nodeid + if item is not None: + for mark in item.iter_markers(name="filterwarnings"): + for arg in mark.args: + warnings.filterwarnings(*parse_warning_filter(arg, escape=False)) + + yield + + for warning_message in log: + ihook.pytest_warning_recorded.call_historic( + kwargs=dict( + warning_message=warning_message, + nodeid=nodeid, + when=when, + location=None, + ) + ) + + +def warning_record_to_str(warning_message: warnings.WarningMessage) -> str: + """Convert a warnings.WarningMessage to a string.""" + warn_msg = warning_message.message + msg = warnings.formatwarning( + str(warn_msg), + warning_message.category, + warning_message.filename, + warning_message.lineno, + warning_message.line, + ) + if warning_message.source is not None: + try: + import tracemalloc + except ImportError: + pass + else: + tb = tracemalloc.get_object_traceback(warning_message.source) + if tb is not None: + formatted_tb = "\n".join(tb.format()) + # Use a leading new line to better separate the (large) output + # from the traceback to the previous warning text. + msg += f"\nObject allocated at:\n{formatted_tb}" + else: + # No need for a leading new line. + url = "https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings" + msg += "Enable tracemalloc to get traceback where the object was allocated.\n" + msg += f"See {url} for more info." + return msg + + +@pytest.hookimpl(hookwrapper=True, tryfirst=True) +def pytest_runtest_protocol(item: Item) -> Generator[None, None, None]: + with catch_warnings_for_item( + config=item.config, ihook=item.ihook, when="runtest", item=item + ): + yield + + +@pytest.hookimpl(hookwrapper=True, tryfirst=True) +def pytest_collection(session: Session) -> Generator[None, None, None]: + config = session.config + with catch_warnings_for_item( + config=config, ihook=config.hook, when="collect", item=None + ): + yield + + +@pytest.hookimpl(hookwrapper=True) +def pytest_terminal_summary( + terminalreporter: TerminalReporter, +) -> Generator[None, None, None]: + config = terminalreporter.config + with catch_warnings_for_item( + config=config, ihook=config.hook, when="config", item=None + ): + yield + + +@pytest.hookimpl(hookwrapper=True) +def pytest_sessionfinish(session: Session) -> Generator[None, None, None]: + config = session.config + with catch_warnings_for_item( + config=config, ihook=config.hook, when="config", item=None + ): + yield + + +@pytest.hookimpl(hookwrapper=True) +def pytest_load_initial_conftests( + early_config: "Config", +) -> Generator[None, None, None]: + with catch_warnings_for_item( + config=early_config, ihook=early_config.hook, when="config", item=None + ): + yield diff --git a/utils/python-venv/Lib/site-packages/_virtualenv.pth b/utils/python-venv/Lib/site-packages/_virtualenv.pth new file mode 100644 index 0000000..1c3ff99 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_virtualenv.pth @@ -0,0 +1 @@ +import _virtualenv \ No newline at end of file diff --git a/utils/python-venv/Lib/site-packages/_virtualenv.py b/utils/python-venv/Lib/site-packages/_virtualenv.py new file mode 100644 index 0000000..da98b82 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/_virtualenv.py @@ -0,0 +1,130 @@ +"""Patches that are applied at runtime to the virtual environment""" +# -*- coding: utf-8 -*- + +import os +import sys + +VIRTUALENV_PATCH_FILE = os.path.join(__file__) + + +def patch_dist(dist): + """ + Distutils allows user to configure some arguments via a configuration file: + https://docs.python.org/3/install/index.html#distutils-configuration-files + + Some of this arguments though don't make sense in context of the virtual environment files, let's fix them up. + """ + # we cannot allow some install config as that would get packages installed outside of the virtual environment + old_parse_config_files = dist.Distribution.parse_config_files + + def parse_config_files(self, *args, **kwargs): + result = old_parse_config_files(self, *args, **kwargs) + install = self.get_option_dict("install") + + if "prefix" in install: # the prefix governs where to install the libraries + install["prefix"] = VIRTUALENV_PATCH_FILE, os.path.abspath(sys.prefix) + for base in ("purelib", "platlib", "headers", "scripts", "data"): + key = "install_{}".format(base) + if key in install: # do not allow global configs to hijack venv paths + install.pop(key, None) + return result + + dist.Distribution.parse_config_files = parse_config_files + + +# Import hook that patches some modules to ignore configuration values that break package installation in case +# of virtual environments. +_DISTUTILS_PATCH = "distutils.dist", "setuptools.dist" +if sys.version_info > (3, 4): + # https://docs.python.org/3/library/importlib.html#setting-up-an-importer + from functools import partial + from importlib.abc import MetaPathFinder + from importlib.util import find_spec + + class _Finder(MetaPathFinder): + """A meta path finder that allows patching the imported distutils modules""" + + fullname = None + + # lock[0] is threading.Lock(), but initialized lazily to avoid importing threading very early at startup, + # because there are gevent-based applications that need to be first to import threading by themselves. + # See https://github.com/pypa/virtualenv/issues/1895 for details. + lock = [] + + def find_spec(self, fullname, path, target=None): + if fullname in _DISTUTILS_PATCH and self.fullname is None: + # initialize lock[0] lazily + if len(self.lock) == 0: + import threading + + lock = threading.Lock() + # there is possibility that two threads T1 and T2 are simultaneously running into find_spec, + # observing .lock as empty, and further going into hereby initialization. However due to the GIL, + # list.append() operation is atomic and this way only one of the threads will "win" to put the lock + # - that every thread will use - into .lock[0]. + # https://docs.python.org/3/faq/library.html#what-kinds-of-global-value-mutation-are-thread-safe + self.lock.append(lock) + + with self.lock[0]: + self.fullname = fullname + try: + spec = find_spec(fullname, path) + if spec is not None: + # https://www.python.org/dev/peps/pep-0451/#how-loading-will-work + is_new_api = hasattr(spec.loader, "exec_module") + func_name = "exec_module" if is_new_api else "load_module" + old = getattr(spec.loader, func_name) + func = self.exec_module if is_new_api else self.load_module + if old is not func: + try: + setattr(spec.loader, func_name, partial(func, old)) + except AttributeError: + pass # C-Extension loaders are r/o such as zipimporter with " + +__author__ = "Hynek Schlawack" +__email__ = "hs@ox.cx" + +__license__ = "MIT" +__copyright__ = "Copyright (c) 2015 Hynek Schlawack" + + +s = attributes = attrs +ib = attr = attrib +dataclass = partial(attrs, auto_attribs=True) # happy Easter ;) + +__all__ = [ + "Attribute", + "Factory", + "NOTHING", + "asdict", + "assoc", + "astuple", + "attr", + "attrib", + "attributes", + "attrs", + "cmp_using", + "converters", + "evolve", + "exceptions", + "fields", + "fields_dict", + "filters", + "get_run_validators", + "has", + "ib", + "make_class", + "resolve_types", + "s", + "set_run_validators", + "setters", + "validate", + "validators", +] + +if sys.version_info[:2] >= (3, 6): + from ._next_gen import define, field, frozen, mutable # noqa: F401 + + __all__.extend(("define", "field", "frozen", "mutable")) diff --git a/utils/python-venv/Lib/site-packages/attr/__init__.pyi b/utils/python-venv/Lib/site-packages/attr/__init__.pyi new file mode 100644 index 0000000..03cc4c8 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/__init__.pyi @@ -0,0 +1,486 @@ +import sys + +from typing import ( + Any, + Callable, + ClassVar, + Dict, + Generic, + List, + Mapping, + Optional, + Protocol, + Sequence, + Tuple, + Type, + TypeVar, + Union, + overload, +) + +# `import X as X` is required to make these public +from . import converters as converters +from . import exceptions as exceptions +from . import filters as filters +from . import setters as setters +from . import validators as validators +from ._cmp import cmp_using as cmp_using +from ._version_info import VersionInfo + +__version__: str +__version_info__: VersionInfo +__title__: str +__description__: str +__url__: str +__uri__: str +__author__: str +__email__: str +__license__: str +__copyright__: str + +_T = TypeVar("_T") +_C = TypeVar("_C", bound=type) + +_EqOrderType = Union[bool, Callable[[Any], Any]] +_ValidatorType = Callable[[Any, Attribute[_T], _T], Any] +_ConverterType = Callable[[Any], Any] +_FilterType = Callable[[Attribute[_T], _T], bool] +_ReprType = Callable[[Any], str] +_ReprArgType = Union[bool, _ReprType] +_OnSetAttrType = Callable[[Any, Attribute[Any], Any], Any] +_OnSetAttrArgType = Union[ + _OnSetAttrType, List[_OnSetAttrType], setters._NoOpType +] +_FieldTransformer = Callable[ + [type, List[Attribute[Any]]], List[Attribute[Any]] +] +# FIXME: in reality, if multiple validators are passed they must be in a list +# or tuple, but those are invariant and so would prevent subtypes of +# _ValidatorType from working when passed in a list or tuple. +_ValidatorArgType = Union[_ValidatorType[_T], Sequence[_ValidatorType[_T]]] + +# A protocol to be able to statically accept an attrs class. +class AttrsInstance(Protocol): + __attrs_attrs__: ClassVar[Any] + +# _make -- + +NOTHING: object + +# NOTE: Factory lies about its return type to make this possible: +# `x: List[int] # = Factory(list)` +# Work around mypy issue #4554 in the common case by using an overload. +if sys.version_info >= (3, 8): + from typing import Literal + @overload + def Factory(factory: Callable[[], _T]) -> _T: ... + @overload + def Factory( + factory: Callable[[Any], _T], + takes_self: Literal[True], + ) -> _T: ... + @overload + def Factory( + factory: Callable[[], _T], + takes_self: Literal[False], + ) -> _T: ... + +else: + @overload + def Factory(factory: Callable[[], _T]) -> _T: ... + @overload + def Factory( + factory: Union[Callable[[Any], _T], Callable[[], _T]], + takes_self: bool = ..., + ) -> _T: ... + +# Static type inference support via __dataclass_transform__ implemented as per: +# https://github.com/microsoft/pyright/blob/1.1.135/specs/dataclass_transforms.md +# This annotation must be applied to all overloads of "define" and "attrs" +# +# NOTE: This is a typing construct and does not exist at runtime. Extensions +# wrapping attrs decorators should declare a separate __dataclass_transform__ +# signature in the extension module using the specification linked above to +# provide pyright support. +def __dataclass_transform__( + *, + eq_default: bool = True, + order_default: bool = False, + kw_only_default: bool = False, + field_descriptors: Tuple[Union[type, Callable[..., Any]], ...] = (()), +) -> Callable[[_T], _T]: ... + +class Attribute(Generic[_T]): + name: str + default: Optional[_T] + validator: Optional[_ValidatorType[_T]] + repr: _ReprArgType + cmp: _EqOrderType + eq: _EqOrderType + order: _EqOrderType + hash: Optional[bool] + init: bool + converter: Optional[_ConverterType] + metadata: Dict[Any, Any] + type: Optional[Type[_T]] + kw_only: bool + on_setattr: _OnSetAttrType + def evolve(self, **changes: Any) -> "Attribute[Any]": ... + +# NOTE: We had several choices for the annotation to use for type arg: +# 1) Type[_T] +# - Pros: Handles simple cases correctly +# - Cons: Might produce less informative errors in the case of conflicting +# TypeVars e.g. `attr.ib(default='bad', type=int)` +# 2) Callable[..., _T] +# - Pros: Better error messages than #1 for conflicting TypeVars +# - Cons: Terrible error messages for validator checks. +# e.g. attr.ib(type=int, validator=validate_str) +# -> error: Cannot infer function type argument +# 3) type (and do all of the work in the mypy plugin) +# - Pros: Simple here, and we could customize the plugin with our own errors. +# - Cons: Would need to write mypy plugin code to handle all the cases. +# We chose option #1. + +# `attr` lies about its return type to make the following possible: +# attr() -> Any +# attr(8) -> int +# attr(validator=) -> Whatever the callable expects. +# This makes this type of assignments possible: +# x: int = attr(8) +# +# This form catches explicit None or no default but with no other arguments +# returns Any. +@overload +def attrib( + default: None = ..., + validator: None = ..., + repr: _ReprArgType = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + type: None = ..., + converter: None = ..., + factory: None = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> Any: ... + +# This form catches an explicit None or no default and infers the type from the +# other arguments. +@overload +def attrib( + default: None = ..., + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + type: Optional[Type[_T]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> _T: ... + +# This form catches an explicit default argument. +@overload +def attrib( + default: _T, + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + type: Optional[Type[_T]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> _T: ... + +# This form covers type=non-Type: e.g. forward references (str), Any +@overload +def attrib( + default: Optional[_T] = ..., + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + type: object = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> Any: ... +@overload +def field( + *, + default: None = ..., + validator: None = ..., + repr: _ReprArgType = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + converter: None = ..., + factory: None = ..., + kw_only: bool = ..., + eq: Optional[bool] = ..., + order: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> Any: ... + +# This form catches an explicit None or no default and infers the type from the +# other arguments. +@overload +def field( + *, + default: None = ..., + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> _T: ... + +# This form catches an explicit default argument. +@overload +def field( + *, + default: _T, + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> _T: ... + +# This form covers type=non-Type: e.g. forward references (str), Any +@overload +def field( + *, + default: Optional[_T] = ..., + validator: Optional[_ValidatorArgType[_T]] = ..., + repr: _ReprArgType = ..., + hash: Optional[bool] = ..., + init: bool = ..., + metadata: Optional[Mapping[Any, Any]] = ..., + converter: Optional[_ConverterType] = ..., + factory: Optional[Callable[[], _T]] = ..., + kw_only: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., +) -> Any: ... +@overload +@__dataclass_transform__(order_default=True, field_descriptors=(attrib, field)) +def attrs( + maybe_cls: _C, + these: Optional[Dict[str, Any]] = ..., + repr_ns: Optional[str] = ..., + repr: bool = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + auto_detect: bool = ..., + collect_by_mro: bool = ..., + getstate_setstate: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., + match_args: bool = ..., +) -> _C: ... +@overload +@__dataclass_transform__(order_default=True, field_descriptors=(attrib, field)) +def attrs( + maybe_cls: None = ..., + these: Optional[Dict[str, Any]] = ..., + repr_ns: Optional[str] = ..., + repr: bool = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + auto_detect: bool = ..., + collect_by_mro: bool = ..., + getstate_setstate: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., + match_args: bool = ..., +) -> Callable[[_C], _C]: ... +@overload +@__dataclass_transform__(field_descriptors=(attrib, field)) +def define( + maybe_cls: _C, + *, + these: Optional[Dict[str, Any]] = ..., + repr: bool = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[bool] = ..., + order: Optional[bool] = ..., + auto_detect: bool = ..., + getstate_setstate: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., + match_args: bool = ..., +) -> _C: ... +@overload +@__dataclass_transform__(field_descriptors=(attrib, field)) +def define( + maybe_cls: None = ..., + *, + these: Optional[Dict[str, Any]] = ..., + repr: bool = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[bool] = ..., + order: Optional[bool] = ..., + auto_detect: bool = ..., + getstate_setstate: Optional[bool] = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., + match_args: bool = ..., +) -> Callable[[_C], _C]: ... + +mutable = define +frozen = define # they differ only in their defaults + +def fields(cls: Type[AttrsInstance]) -> Any: ... +def fields_dict(cls: Type[AttrsInstance]) -> Dict[str, Attribute[Any]]: ... +def validate(inst: AttrsInstance) -> None: ... +def resolve_types( + cls: _C, + globalns: Optional[Dict[str, Any]] = ..., + localns: Optional[Dict[str, Any]] = ..., + attribs: Optional[List[Attribute[Any]]] = ..., +) -> _C: ... + +# TODO: add support for returning a proper attrs class from the mypy plugin +# we use Any instead of _CountingAttr so that e.g. `make_class('Foo', +# [attr.ib()])` is valid +def make_class( + name: str, + attrs: Union[List[str], Tuple[str, ...], Dict[str, Any]], + bases: Tuple[type, ...] = ..., + repr_ns: Optional[str] = ..., + repr: bool = ..., + cmp: Optional[_EqOrderType] = ..., + hash: Optional[bool] = ..., + init: bool = ..., + slots: bool = ..., + frozen: bool = ..., + weakref_slot: bool = ..., + str: bool = ..., + auto_attribs: bool = ..., + kw_only: bool = ..., + cache_hash: bool = ..., + auto_exc: bool = ..., + eq: Optional[_EqOrderType] = ..., + order: Optional[_EqOrderType] = ..., + collect_by_mro: bool = ..., + on_setattr: Optional[_OnSetAttrArgType] = ..., + field_transformer: Optional[_FieldTransformer] = ..., +) -> type: ... + +# _funcs -- + +# TODO: add support for returning TypedDict from the mypy plugin +# FIXME: asdict/astuple do not honor their factory args. Waiting on one of +# these: +# https://github.com/python/mypy/issues/4236 +# https://github.com/python/typing/issues/253 +# XXX: remember to fix attrs.asdict/astuple too! +def asdict( + inst: AttrsInstance, + recurse: bool = ..., + filter: Optional[_FilterType[Any]] = ..., + dict_factory: Type[Mapping[Any, Any]] = ..., + retain_collection_types: bool = ..., + value_serializer: Optional[ + Callable[[type, Attribute[Any], Any], Any] + ] = ..., + tuple_keys: Optional[bool] = ..., +) -> Dict[str, Any]: ... + +# TODO: add support for returning NamedTuple from the mypy plugin +def astuple( + inst: AttrsInstance, + recurse: bool = ..., + filter: Optional[_FilterType[Any]] = ..., + tuple_factory: Type[Sequence[Any]] = ..., + retain_collection_types: bool = ..., +) -> Tuple[Any, ...]: ... +def has(cls: type) -> bool: ... +def assoc(inst: _T, **changes: Any) -> _T: ... +def evolve(inst: _T, **changes: Any) -> _T: ... + +# _config -- + +def set_run_validators(run: bool) -> None: ... +def get_run_validators() -> bool: ... + +# aliases -- + +s = attributes = attrs +ib = attr = attrib +dataclass = attrs # Technically, partial(attrs, auto_attribs=True) ;) diff --git a/utils/python-venv/Lib/site-packages/attr/_cmp.py b/utils/python-venv/Lib/site-packages/attr/_cmp.py new file mode 100644 index 0000000..81b99e4 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/_cmp.py @@ -0,0 +1,155 @@ +# SPDX-License-Identifier: MIT + + +import functools +import types + +from ._make import _make_ne + + +_operation_names = {"eq": "==", "lt": "<", "le": "<=", "gt": ">", "ge": ">="} + + +def cmp_using( + eq=None, + lt=None, + le=None, + gt=None, + ge=None, + require_same_type=True, + class_name="Comparable", +): + """ + Create a class that can be passed into `attr.ib`'s ``eq``, ``order``, and + ``cmp`` arguments to customize field comparison. + + The resulting class will have a full set of ordering methods if + at least one of ``{lt, le, gt, ge}`` and ``eq`` are provided. + + :param Optional[callable] eq: `callable` used to evaluate equality + of two objects. + :param Optional[callable] lt: `callable` used to evaluate whether + one object is less than another object. + :param Optional[callable] le: `callable` used to evaluate whether + one object is less than or equal to another object. + :param Optional[callable] gt: `callable` used to evaluate whether + one object is greater than another object. + :param Optional[callable] ge: `callable` used to evaluate whether + one object is greater than or equal to another object. + + :param bool require_same_type: When `True`, equality and ordering methods + will return `NotImplemented` if objects are not of the same type. + + :param Optional[str] class_name: Name of class. Defaults to 'Comparable'. + + See `comparison` for more details. + + .. versionadded:: 21.1.0 + """ + + body = { + "__slots__": ["value"], + "__init__": _make_init(), + "_requirements": [], + "_is_comparable_to": _is_comparable_to, + } + + # Add operations. + num_order_functions = 0 + has_eq_function = False + + if eq is not None: + has_eq_function = True + body["__eq__"] = _make_operator("eq", eq) + body["__ne__"] = _make_ne() + + if lt is not None: + num_order_functions += 1 + body["__lt__"] = _make_operator("lt", lt) + + if le is not None: + num_order_functions += 1 + body["__le__"] = _make_operator("le", le) + + if gt is not None: + num_order_functions += 1 + body["__gt__"] = _make_operator("gt", gt) + + if ge is not None: + num_order_functions += 1 + body["__ge__"] = _make_operator("ge", ge) + + type_ = types.new_class( + class_name, (object,), {}, lambda ns: ns.update(body) + ) + + # Add same type requirement. + if require_same_type: + type_._requirements.append(_check_same_type) + + # Add total ordering if at least one operation was defined. + if 0 < num_order_functions < 4: + if not has_eq_function: + # functools.total_ordering requires __eq__ to be defined, + # so raise early error here to keep a nice stack. + raise ValueError( + "eq must be define is order to complete ordering from " + "lt, le, gt, ge." + ) + type_ = functools.total_ordering(type_) + + return type_ + + +def _make_init(): + """ + Create __init__ method. + """ + + def __init__(self, value): + """ + Initialize object with *value*. + """ + self.value = value + + return __init__ + + +def _make_operator(name, func): + """ + Create operator method. + """ + + def method(self, other): + if not self._is_comparable_to(other): + return NotImplemented + + result = func(self.value, other.value) + if result is NotImplemented: + return NotImplemented + + return result + + method.__name__ = "__%s__" % (name,) + method.__doc__ = "Return a %s b. Computed by attrs." % ( + _operation_names[name], + ) + + return method + + +def _is_comparable_to(self, other): + """ + Check whether `other` is comparable to `self`. + """ + for func in self._requirements: + if not func(self, other): + return False + return True + + +def _check_same_type(self, other): + """ + Return True if *self* and *other* are of the same type, False otherwise. + """ + return other.value.__class__ is self.value.__class__ diff --git a/utils/python-venv/Lib/site-packages/attr/_cmp.pyi b/utils/python-venv/Lib/site-packages/attr/_cmp.pyi new file mode 100644 index 0000000..35437ef --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/_cmp.pyi @@ -0,0 +1,13 @@ +from typing import Any, Callable, Optional, Type + +_CompareWithType = Callable[[Any, Any], bool] + +def cmp_using( + eq: Optional[_CompareWithType], + lt: Optional[_CompareWithType], + le: Optional[_CompareWithType], + gt: Optional[_CompareWithType], + ge: Optional[_CompareWithType], + require_same_type: bool, + class_name: str, +) -> Type: ... diff --git a/utils/python-venv/Lib/site-packages/attr/_compat.py b/utils/python-venv/Lib/site-packages/attr/_compat.py new file mode 100644 index 0000000..5826493 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/_compat.py @@ -0,0 +1,185 @@ +# SPDX-License-Identifier: MIT + + +import inspect +import platform +import sys +import threading +import types +import warnings + +from collections.abc import Mapping, Sequence # noqa + + +PYPY = platform.python_implementation() == "PyPy" +PY36 = sys.version_info[:2] >= (3, 6) +HAS_F_STRINGS = PY36 +PY310 = sys.version_info[:2] >= (3, 10) + + +if PYPY or PY36: + ordered_dict = dict +else: + from collections import OrderedDict + + ordered_dict = OrderedDict + + +def just_warn(*args, **kw): + warnings.warn( + "Running interpreter doesn't sufficiently support code object " + "introspection. Some features like bare super() or accessing " + "__class__ will not work with slotted classes.", + RuntimeWarning, + stacklevel=2, + ) + + +class _AnnotationExtractor: + """ + Extract type annotations from a callable, returning None whenever there + is none. + """ + + __slots__ = ["sig"] + + def __init__(self, callable): + try: + self.sig = inspect.signature(callable) + except (ValueError, TypeError): # inspect failed + self.sig = None + + def get_first_param_type(self): + """ + Return the type annotation of the first argument if it's not empty. + """ + if not self.sig: + return None + + params = list(self.sig.parameters.values()) + if params and params[0].annotation is not inspect.Parameter.empty: + return params[0].annotation + + return None + + def get_return_type(self): + """ + Return the return type if it's not empty. + """ + if ( + self.sig + and self.sig.return_annotation is not inspect.Signature.empty + ): + return self.sig.return_annotation + + return None + + +def make_set_closure_cell(): + """Return a function of two arguments (cell, value) which sets + the value stored in the closure cell `cell` to `value`. + """ + # pypy makes this easy. (It also supports the logic below, but + # why not do the easy/fast thing?) + if PYPY: + + def set_closure_cell(cell, value): + cell.__setstate__((value,)) + + return set_closure_cell + + # Otherwise gotta do it the hard way. + + # Create a function that will set its first cellvar to `value`. + def set_first_cellvar_to(value): + x = value + return + + # This function will be eliminated as dead code, but + # not before its reference to `x` forces `x` to be + # represented as a closure cell rather than a local. + def force_x_to_be_a_cell(): # pragma: no cover + return x + + try: + # Extract the code object and make sure our assumptions about + # the closure behavior are correct. + co = set_first_cellvar_to.__code__ + if co.co_cellvars != ("x",) or co.co_freevars != (): + raise AssertionError # pragma: no cover + + # Convert this code object to a code object that sets the + # function's first _freevar_ (not cellvar) to the argument. + if sys.version_info >= (3, 8): + + def set_closure_cell(cell, value): + cell.cell_contents = value + + else: + args = [co.co_argcount] + args.append(co.co_kwonlyargcount) + args.extend( + [ + co.co_nlocals, + co.co_stacksize, + co.co_flags, + co.co_code, + co.co_consts, + co.co_names, + co.co_varnames, + co.co_filename, + co.co_name, + co.co_firstlineno, + co.co_lnotab, + # These two arguments are reversed: + co.co_cellvars, + co.co_freevars, + ] + ) + set_first_freevar_code = types.CodeType(*args) + + def set_closure_cell(cell, value): + # Create a function using the set_first_freevar_code, + # whose first closure cell is `cell`. Calling it will + # change the value of that cell. + setter = types.FunctionType( + set_first_freevar_code, {}, "setter", (), (cell,) + ) + # And call it to set the cell. + setter(value) + + # Make sure it works on this interpreter: + def make_func_with_cell(): + x = None + + def func(): + return x # pragma: no cover + + return func + + cell = make_func_with_cell().__closure__[0] + set_closure_cell(cell, 100) + if cell.cell_contents != 100: + raise AssertionError # pragma: no cover + + except Exception: + return just_warn + else: + return set_closure_cell + + +set_closure_cell = make_set_closure_cell() + +# Thread-local global to track attrs instances which are already being repr'd. +# This is needed because there is no other (thread-safe) way to pass info +# about the instances that are already being repr'd through the call stack +# in order to ensure we don't perform infinite recursion. +# +# For instance, if an instance contains a dict which contains that instance, +# we need to know that we're already repr'ing the outside instance from within +# the dict's repr() call. +# +# This lives here rather than in _make.py so that the functions in _make.py +# don't have a direct reference to the thread-local in their globals dict. +# If they have such a reference, it breaks cloudpickle. +repr_context = threading.local() diff --git a/utils/python-venv/Lib/site-packages/attr/_config.py b/utils/python-venv/Lib/site-packages/attr/_config.py new file mode 100644 index 0000000..96d4200 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/_config.py @@ -0,0 +1,31 @@ +# SPDX-License-Identifier: MIT + + +__all__ = ["set_run_validators", "get_run_validators"] + +_run_validators = True + + +def set_run_validators(run): + """ + Set whether or not validators are run. By default, they are run. + + .. deprecated:: 21.3.0 It will not be removed, but it also will not be + moved to new ``attrs`` namespace. Use `attrs.validators.set_disabled()` + instead. + """ + if not isinstance(run, bool): + raise TypeError("'run' must be bool.") + global _run_validators + _run_validators = run + + +def get_run_validators(): + """ + Return whether or not validators are run. + + .. deprecated:: 21.3.0 It will not be removed, but it also will not be + moved to new ``attrs`` namespace. Use `attrs.validators.get_disabled()` + instead. + """ + return _run_validators diff --git a/utils/python-venv/Lib/site-packages/attr/_funcs.py b/utils/python-venv/Lib/site-packages/attr/_funcs.py new file mode 100644 index 0000000..a982d7c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/_funcs.py @@ -0,0 +1,420 @@ +# SPDX-License-Identifier: MIT + + +import copy + +from ._make import NOTHING, _obj_setattr, fields +from .exceptions import AttrsAttributeNotFoundError + + +def asdict( + inst, + recurse=True, + filter=None, + dict_factory=dict, + retain_collection_types=False, + value_serializer=None, +): + """ + Return the ``attrs`` attribute values of *inst* as a dict. + + Optionally recurse into other ``attrs``-decorated classes. + + :param inst: Instance of an ``attrs``-decorated class. + :param bool recurse: Recurse into classes that are also + ``attrs``-decorated. + :param callable filter: A callable whose return code determines whether an + attribute or element is included (``True``) or dropped (``False``). Is + called with the `attrs.Attribute` as the first argument and the + value as the second argument. + :param callable dict_factory: A callable to produce dictionaries from. For + example, to produce ordered dictionaries instead of normal Python + dictionaries, pass in ``collections.OrderedDict``. + :param bool retain_collection_types: Do not convert to ``list`` when + encountering an attribute whose type is ``tuple`` or ``set``. Only + meaningful if ``recurse`` is ``True``. + :param Optional[callable] value_serializer: A hook that is called for every + attribute or dict key/value. It receives the current instance, field + and value and must return the (updated) value. The hook is run *after* + the optional *filter* has been applied. + + :rtype: return type of *dict_factory* + + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + .. versionadded:: 16.0.0 *dict_factory* + .. versionadded:: 16.1.0 *retain_collection_types* + .. versionadded:: 20.3.0 *value_serializer* + .. versionadded:: 21.3.0 If a dict has a collection for a key, it is + serialized as a tuple. + """ + attrs = fields(inst.__class__) + rv = dict_factory() + for a in attrs: + v = getattr(inst, a.name) + if filter is not None and not filter(a, v): + continue + + if value_serializer is not None: + v = value_serializer(inst, a, v) + + if recurse is True: + if has(v.__class__): + rv[a.name] = asdict( + v, + recurse=True, + filter=filter, + dict_factory=dict_factory, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ) + elif isinstance(v, (tuple, list, set, frozenset)): + cf = v.__class__ if retain_collection_types is True else list + rv[a.name] = cf( + [ + _asdict_anything( + i, + is_key=False, + filter=filter, + dict_factory=dict_factory, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ) + for i in v + ] + ) + elif isinstance(v, dict): + df = dict_factory + rv[a.name] = df( + ( + _asdict_anything( + kk, + is_key=True, + filter=filter, + dict_factory=df, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ), + _asdict_anything( + vv, + is_key=False, + filter=filter, + dict_factory=df, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ), + ) + for kk, vv in v.items() + ) + else: + rv[a.name] = v + else: + rv[a.name] = v + return rv + + +def _asdict_anything( + val, + is_key, + filter, + dict_factory, + retain_collection_types, + value_serializer, +): + """ + ``asdict`` only works on attrs instances, this works on anything. + """ + if getattr(val.__class__, "__attrs_attrs__", None) is not None: + # Attrs class. + rv = asdict( + val, + recurse=True, + filter=filter, + dict_factory=dict_factory, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ) + elif isinstance(val, (tuple, list, set, frozenset)): + if retain_collection_types is True: + cf = val.__class__ + elif is_key: + cf = tuple + else: + cf = list + + rv = cf( + [ + _asdict_anything( + i, + is_key=False, + filter=filter, + dict_factory=dict_factory, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ) + for i in val + ] + ) + elif isinstance(val, dict): + df = dict_factory + rv = df( + ( + _asdict_anything( + kk, + is_key=True, + filter=filter, + dict_factory=df, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ), + _asdict_anything( + vv, + is_key=False, + filter=filter, + dict_factory=df, + retain_collection_types=retain_collection_types, + value_serializer=value_serializer, + ), + ) + for kk, vv in val.items() + ) + else: + rv = val + if value_serializer is not None: + rv = value_serializer(None, None, rv) + + return rv + + +def astuple( + inst, + recurse=True, + filter=None, + tuple_factory=tuple, + retain_collection_types=False, +): + """ + Return the ``attrs`` attribute values of *inst* as a tuple. + + Optionally recurse into other ``attrs``-decorated classes. + + :param inst: Instance of an ``attrs``-decorated class. + :param bool recurse: Recurse into classes that are also + ``attrs``-decorated. + :param callable filter: A callable whose return code determines whether an + attribute or element is included (``True``) or dropped (``False``). Is + called with the `attrs.Attribute` as the first argument and the + value as the second argument. + :param callable tuple_factory: A callable to produce tuples from. For + example, to produce lists instead of tuples. + :param bool retain_collection_types: Do not convert to ``list`` + or ``dict`` when encountering an attribute which type is + ``tuple``, ``dict`` or ``set``. Only meaningful if ``recurse`` is + ``True``. + + :rtype: return type of *tuple_factory* + + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + .. versionadded:: 16.2.0 + """ + attrs = fields(inst.__class__) + rv = [] + retain = retain_collection_types # Very long. :/ + for a in attrs: + v = getattr(inst, a.name) + if filter is not None and not filter(a, v): + continue + if recurse is True: + if has(v.__class__): + rv.append( + astuple( + v, + recurse=True, + filter=filter, + tuple_factory=tuple_factory, + retain_collection_types=retain, + ) + ) + elif isinstance(v, (tuple, list, set, frozenset)): + cf = v.__class__ if retain is True else list + rv.append( + cf( + [ + astuple( + j, + recurse=True, + filter=filter, + tuple_factory=tuple_factory, + retain_collection_types=retain, + ) + if has(j.__class__) + else j + for j in v + ] + ) + ) + elif isinstance(v, dict): + df = v.__class__ if retain is True else dict + rv.append( + df( + ( + astuple( + kk, + tuple_factory=tuple_factory, + retain_collection_types=retain, + ) + if has(kk.__class__) + else kk, + astuple( + vv, + tuple_factory=tuple_factory, + retain_collection_types=retain, + ) + if has(vv.__class__) + else vv, + ) + for kk, vv in v.items() + ) + ) + else: + rv.append(v) + else: + rv.append(v) + + return rv if tuple_factory is list else tuple_factory(rv) + + +def has(cls): + """ + Check whether *cls* is a class with ``attrs`` attributes. + + :param type cls: Class to introspect. + :raise TypeError: If *cls* is not a class. + + :rtype: bool + """ + return getattr(cls, "__attrs_attrs__", None) is not None + + +def assoc(inst, **changes): + """ + Copy *inst* and apply *changes*. + + :param inst: Instance of a class with ``attrs`` attributes. + :param changes: Keyword changes in the new copy. + + :return: A copy of inst with *changes* incorporated. + + :raise attr.exceptions.AttrsAttributeNotFoundError: If *attr_name* couldn't + be found on *cls*. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + .. deprecated:: 17.1.0 + Use `attrs.evolve` instead if you can. + This function will not be removed du to the slightly different approach + compared to `attrs.evolve`. + """ + import warnings + + warnings.warn( + "assoc is deprecated and will be removed after 2018/01.", + DeprecationWarning, + stacklevel=2, + ) + new = copy.copy(inst) + attrs = fields(inst.__class__) + for k, v in changes.items(): + a = getattr(attrs, k, NOTHING) + if a is NOTHING: + raise AttrsAttributeNotFoundError( + "{k} is not an attrs attribute on {cl}.".format( + k=k, cl=new.__class__ + ) + ) + _obj_setattr(new, k, v) + return new + + +def evolve(inst, **changes): + """ + Create a new instance, based on *inst* with *changes* applied. + + :param inst: Instance of a class with ``attrs`` attributes. + :param changes: Keyword changes in the new copy. + + :return: A copy of inst with *changes* incorporated. + + :raise TypeError: If *attr_name* couldn't be found in the class + ``__init__``. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + .. versionadded:: 17.1.0 + """ + cls = inst.__class__ + attrs = fields(cls) + for a in attrs: + if not a.init: + continue + attr_name = a.name # To deal with private attributes. + init_name = attr_name if attr_name[0] != "_" else attr_name[1:] + if init_name not in changes: + changes[init_name] = getattr(inst, attr_name) + + return cls(**changes) + + +def resolve_types(cls, globalns=None, localns=None, attribs=None): + """ + Resolve any strings and forward annotations in type annotations. + + This is only required if you need concrete types in `Attribute`'s *type* + field. In other words, you don't need to resolve your types if you only + use them for static type checking. + + With no arguments, names will be looked up in the module in which the class + was created. If this is not what you want, e.g. if the name only exists + inside a method, you may pass *globalns* or *localns* to specify other + dictionaries in which to look up these names. See the docs of + `typing.get_type_hints` for more details. + + :param type cls: Class to resolve. + :param Optional[dict] globalns: Dictionary containing global variables. + :param Optional[dict] localns: Dictionary containing local variables. + :param Optional[list] attribs: List of attribs for the given class. + This is necessary when calling from inside a ``field_transformer`` + since *cls* is not an ``attrs`` class yet. + + :raise TypeError: If *cls* is not a class. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class and you didn't pass any attribs. + :raise NameError: If types cannot be resolved because of missing variables. + + :returns: *cls* so you can use this function also as a class decorator. + Please note that you have to apply it **after** `attrs.define`. That + means the decorator has to come in the line **before** `attrs.define`. + + .. versionadded:: 20.1.0 + .. versionadded:: 21.1.0 *attribs* + + """ + # Since calling get_type_hints is expensive we cache whether we've + # done it already. + if getattr(cls, "__attrs_types_resolved__", None) != cls: + import typing + + hints = typing.get_type_hints(cls, globalns=globalns, localns=localns) + for field in fields(cls) if attribs is None else attribs: + if field.name in hints: + # Since fields have been frozen we must work around it. + _obj_setattr(field, "type", hints[field.name]) + # We store the class we resolved so that subclasses know they haven't + # been resolved. + cls.__attrs_types_resolved__ = cls + + # Return the class so you can use it as a decorator too. + return cls diff --git a/utils/python-venv/Lib/site-packages/attr/_make.py b/utils/python-venv/Lib/site-packages/attr/_make.py new file mode 100644 index 0000000..4d1afe3 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/_make.py @@ -0,0 +1,3006 @@ +# SPDX-License-Identifier: MIT + +import copy +import linecache +import sys +import types +import typing + +from operator import itemgetter + +# We need to import _compat itself in addition to the _compat members to avoid +# having the thread-local in the globals here. +from . import _compat, _config, setters +from ._compat import ( + HAS_F_STRINGS, + PY310, + PYPY, + _AnnotationExtractor, + ordered_dict, + set_closure_cell, +) +from .exceptions import ( + DefaultAlreadySetError, + FrozenInstanceError, + NotAnAttrsClassError, + UnannotatedAttributeError, +) + + +# This is used at least twice, so cache it here. +_obj_setattr = object.__setattr__ +_init_converter_pat = "__attr_converter_%s" +_init_factory_pat = "__attr_factory_{}" +_tuple_property_pat = ( + " {attr_name} = _attrs_property(_attrs_itemgetter({index}))" +) +_classvar_prefixes = ( + "typing.ClassVar", + "t.ClassVar", + "ClassVar", + "typing_extensions.ClassVar", +) +# we don't use a double-underscore prefix because that triggers +# name mangling when trying to create a slot for the field +# (when slots=True) +_hash_cache_field = "_attrs_cached_hash" + +_empty_metadata_singleton = types.MappingProxyType({}) + +# Unique object for unequivocal getattr() defaults. +_sentinel = object() + +_ng_default_on_setattr = setters.pipe(setters.convert, setters.validate) + + +class _Nothing: + """ + Sentinel class to indicate the lack of a value when ``None`` is ambiguous. + + ``_Nothing`` is a singleton. There is only ever one of it. + + .. versionchanged:: 21.1.0 ``bool(NOTHING)`` is now False. + """ + + _singleton = None + + def __new__(cls): + if _Nothing._singleton is None: + _Nothing._singleton = super().__new__(cls) + return _Nothing._singleton + + def __repr__(self): + return "NOTHING" + + def __bool__(self): + return False + + +NOTHING = _Nothing() +""" +Sentinel to indicate the lack of a value when ``None`` is ambiguous. +""" + + +class _CacheHashWrapper(int): + """ + An integer subclass that pickles / copies as None + + This is used for non-slots classes with ``cache_hash=True``, to avoid + serializing a potentially (even likely) invalid hash value. Since ``None`` + is the default value for uncalculated hashes, whenever this is copied, + the copy's value for the hash should automatically reset. + + See GH #613 for more details. + """ + + def __reduce__(self, _none_constructor=type(None), _args=()): + return _none_constructor, _args + + +def attrib( + default=NOTHING, + validator=None, + repr=True, + cmp=None, + hash=None, + init=True, + metadata=None, + type=None, + converter=None, + factory=None, + kw_only=False, + eq=None, + order=None, + on_setattr=None, +): + """ + Create a new attribute on a class. + + .. warning:: + + Does *not* do anything unless the class is also decorated with + `attr.s`! + + :param default: A value that is used if an ``attrs``-generated ``__init__`` + is used and no value is passed while instantiating or the attribute is + excluded using ``init=False``. + + If the value is an instance of `attrs.Factory`, its callable will be + used to construct a new value (useful for mutable data types like lists + or dicts). + + If a default is not set (or set manually to `attrs.NOTHING`), a value + *must* be supplied when instantiating; otherwise a `TypeError` + will be raised. + + The default can also be set using decorator notation as shown below. + + :type default: Any value + + :param callable factory: Syntactic sugar for + ``default=attr.Factory(factory)``. + + :param validator: `callable` that is called by ``attrs``-generated + ``__init__`` methods after the instance has been initialized. They + receive the initialized instance, the :func:`~attrs.Attribute`, and the + passed value. + + The return value is *not* inspected so the validator has to throw an + exception itself. + + If a `list` is passed, its items are treated as validators and must + all pass. + + Validators can be globally disabled and re-enabled using + `get_run_validators`. + + The validator can also be set using decorator notation as shown below. + + :type validator: `callable` or a `list` of `callable`\\ s. + + :param repr: Include this attribute in the generated ``__repr__`` + method. If ``True``, include the attribute; if ``False``, omit it. By + default, the built-in ``repr()`` function is used. To override how the + attribute value is formatted, pass a ``callable`` that takes a single + value and returns a string. Note that the resulting string is used + as-is, i.e. it will be used directly *instead* of calling ``repr()`` + (the default). + :type repr: a `bool` or a `callable` to use a custom function. + + :param eq: If ``True`` (default), include this attribute in the + generated ``__eq__`` and ``__ne__`` methods that check two instances + for equality. To override how the attribute value is compared, + pass a ``callable`` that takes a single value and returns the value + to be compared. + :type eq: a `bool` or a `callable`. + + :param order: If ``True`` (default), include this attributes in the + generated ``__lt__``, ``__le__``, ``__gt__`` and ``__ge__`` methods. + To override how the attribute value is ordered, + pass a ``callable`` that takes a single value and returns the value + to be ordered. + :type order: a `bool` or a `callable`. + + :param cmp: Setting *cmp* is equivalent to setting *eq* and *order* to the + same value. Must not be mixed with *eq* or *order*. + :type cmp: a `bool` or a `callable`. + + :param Optional[bool] hash: Include this attribute in the generated + ``__hash__`` method. If ``None`` (default), mirror *eq*'s value. This + is the correct behavior according the Python spec. Setting this value + to anything else than ``None`` is *discouraged*. + :param bool init: Include this attribute in the generated ``__init__`` + method. It is possible to set this to ``False`` and set a default + value. In that case this attributed is unconditionally initialized + with the specified default value or factory. + :param callable converter: `callable` that is called by + ``attrs``-generated ``__init__`` methods to convert attribute's value + to the desired format. It is given the passed-in value, and the + returned value will be used as the new value of the attribute. The + value is converted before being passed to the validator, if any. + :param metadata: An arbitrary mapping, to be used by third-party + components. See `extending_metadata`. + :param type: The type of the attribute. In Python 3.6 or greater, the + preferred method to specify the type is using a variable annotation + (see :pep:`526`). + This argument is provided for backward compatibility. + Regardless of the approach used, the type will be stored on + ``Attribute.type``. + + Please note that ``attrs`` doesn't do anything with this metadata by + itself. You can use it as part of your own code or for + `static type checking `. + :param kw_only: Make this attribute keyword-only (Python 3+) + in the generated ``__init__`` (if ``init`` is ``False``, this + parameter is ignored). + :param on_setattr: Allows to overwrite the *on_setattr* setting from + `attr.s`. If left `None`, the *on_setattr* value from `attr.s` is used. + Set to `attrs.setters.NO_OP` to run **no** `setattr` hooks for this + attribute -- regardless of the setting in `attr.s`. + :type on_setattr: `callable`, or a list of callables, or `None`, or + `attrs.setters.NO_OP` + + .. versionadded:: 15.2.0 *convert* + .. versionadded:: 16.3.0 *metadata* + .. versionchanged:: 17.1.0 *validator* can be a ``list`` now. + .. versionchanged:: 17.1.0 + *hash* is ``None`` and therefore mirrors *eq* by default. + .. versionadded:: 17.3.0 *type* + .. deprecated:: 17.4.0 *convert* + .. versionadded:: 17.4.0 *converter* as a replacement for the deprecated + *convert* to achieve consistency with other noun-based arguments. + .. versionadded:: 18.1.0 + ``factory=f`` is syntactic sugar for ``default=attr.Factory(f)``. + .. versionadded:: 18.2.0 *kw_only* + .. versionchanged:: 19.2.0 *convert* keyword argument removed. + .. versionchanged:: 19.2.0 *repr* also accepts a custom callable. + .. deprecated:: 19.2.0 *cmp* Removal on or after 2021-06-01. + .. versionadded:: 19.2.0 *eq* and *order* + .. versionadded:: 20.1.0 *on_setattr* + .. versionchanged:: 20.3.0 *kw_only* backported to Python 2 + .. versionchanged:: 21.1.0 + *eq*, *order*, and *cmp* also accept a custom callable + .. versionchanged:: 21.1.0 *cmp* undeprecated + """ + eq, eq_key, order, order_key = _determine_attrib_eq_order( + cmp, eq, order, True + ) + + if hash is not None and hash is not True and hash is not False: + raise TypeError( + "Invalid value for hash. Must be True, False, or None." + ) + + if factory is not None: + if default is not NOTHING: + raise ValueError( + "The `default` and `factory` arguments are mutually " + "exclusive." + ) + if not callable(factory): + raise ValueError("The `factory` argument must be a callable.") + default = Factory(factory) + + if metadata is None: + metadata = {} + + # Apply syntactic sugar by auto-wrapping. + if isinstance(on_setattr, (list, tuple)): + on_setattr = setters.pipe(*on_setattr) + + if validator and isinstance(validator, (list, tuple)): + validator = and_(*validator) + + if converter and isinstance(converter, (list, tuple)): + converter = pipe(*converter) + + return _CountingAttr( + default=default, + validator=validator, + repr=repr, + cmp=None, + hash=hash, + init=init, + converter=converter, + metadata=metadata, + type=type, + kw_only=kw_only, + eq=eq, + eq_key=eq_key, + order=order, + order_key=order_key, + on_setattr=on_setattr, + ) + + +def _compile_and_eval(script, globs, locs=None, filename=""): + """ + "Exec" the script with the given global (globs) and local (locs) variables. + """ + bytecode = compile(script, filename, "exec") + eval(bytecode, globs, locs) + + +def _make_method(name, script, filename, globs): + """ + Create the method with the script given and return the method object. + """ + locs = {} + + # In order of debuggers like PDB being able to step through the code, + # we add a fake linecache entry. + count = 1 + base_filename = filename + while True: + linecache_tuple = ( + len(script), + None, + script.splitlines(True), + filename, + ) + old_val = linecache.cache.setdefault(filename, linecache_tuple) + if old_val == linecache_tuple: + break + else: + filename = "{}-{}>".format(base_filename[:-1], count) + count += 1 + + _compile_and_eval(script, globs, locs, filename) + + return locs[name] + + +def _make_attr_tuple_class(cls_name, attr_names): + """ + Create a tuple subclass to hold `Attribute`s for an `attrs` class. + + The subclass is a bare tuple with properties for names. + + class MyClassAttributes(tuple): + __slots__ = () + x = property(itemgetter(0)) + """ + attr_class_name = "{}Attributes".format(cls_name) + attr_class_template = [ + "class {}(tuple):".format(attr_class_name), + " __slots__ = ()", + ] + if attr_names: + for i, attr_name in enumerate(attr_names): + attr_class_template.append( + _tuple_property_pat.format(index=i, attr_name=attr_name) + ) + else: + attr_class_template.append(" pass") + globs = {"_attrs_itemgetter": itemgetter, "_attrs_property": property} + _compile_and_eval("\n".join(attr_class_template), globs) + return globs[attr_class_name] + + +# Tuple class for extracted attributes from a class definition. +# `base_attrs` is a subset of `attrs`. +_Attributes = _make_attr_tuple_class( + "_Attributes", + [ + # all attributes to build dunder methods for + "attrs", + # attributes that have been inherited + "base_attrs", + # map inherited attributes to their originating classes + "base_attrs_map", + ], +) + + +def _is_class_var(annot): + """ + Check whether *annot* is a typing.ClassVar. + + The string comparison hack is used to avoid evaluating all string + annotations which would put attrs-based classes at a performance + disadvantage compared to plain old classes. + """ + annot = str(annot) + + # Annotation can be quoted. + if annot.startswith(("'", '"')) and annot.endswith(("'", '"')): + annot = annot[1:-1] + + return annot.startswith(_classvar_prefixes) + + +def _has_own_attribute(cls, attrib_name): + """ + Check whether *cls* defines *attrib_name* (and doesn't just inherit it). + + Requires Python 3. + """ + attr = getattr(cls, attrib_name, _sentinel) + if attr is _sentinel: + return False + + for base_cls in cls.__mro__[1:]: + a = getattr(base_cls, attrib_name, None) + if attr is a: + return False + + return True + + +def _get_annotations(cls): + """ + Get annotations for *cls*. + """ + if _has_own_attribute(cls, "__annotations__"): + return cls.__annotations__ + + return {} + + +def _counter_getter(e): + """ + Key function for sorting to avoid re-creating a lambda for every class. + """ + return e[1].counter + + +def _collect_base_attrs(cls, taken_attr_names): + """ + Collect attr.ibs from base classes of *cls*, except *taken_attr_names*. + """ + base_attrs = [] + base_attr_map = {} # A dictionary of base attrs to their classes. + + # Traverse the MRO and collect attributes. + for base_cls in reversed(cls.__mro__[1:-1]): + for a in getattr(base_cls, "__attrs_attrs__", []): + if a.inherited or a.name in taken_attr_names: + continue + + a = a.evolve(inherited=True) + base_attrs.append(a) + base_attr_map[a.name] = base_cls + + # For each name, only keep the freshest definition i.e. the furthest at the + # back. base_attr_map is fine because it gets overwritten with every new + # instance. + filtered = [] + seen = set() + for a in reversed(base_attrs): + if a.name in seen: + continue + filtered.insert(0, a) + seen.add(a.name) + + return filtered, base_attr_map + + +def _collect_base_attrs_broken(cls, taken_attr_names): + """ + Collect attr.ibs from base classes of *cls*, except *taken_attr_names*. + + N.B. *taken_attr_names* will be mutated. + + Adhere to the old incorrect behavior. + + Notably it collects from the front and considers inherited attributes which + leads to the buggy behavior reported in #428. + """ + base_attrs = [] + base_attr_map = {} # A dictionary of base attrs to their classes. + + # Traverse the MRO and collect attributes. + for base_cls in cls.__mro__[1:-1]: + for a in getattr(base_cls, "__attrs_attrs__", []): + if a.name in taken_attr_names: + continue + + a = a.evolve(inherited=True) + taken_attr_names.add(a.name) + base_attrs.append(a) + base_attr_map[a.name] = base_cls + + return base_attrs, base_attr_map + + +def _transform_attrs( + cls, these, auto_attribs, kw_only, collect_by_mro, field_transformer +): + """ + Transform all `_CountingAttr`s on a class into `Attribute`s. + + If *these* is passed, use that and don't look for them on the class. + + *collect_by_mro* is True, collect them in the correct MRO order, otherwise + use the old -- incorrect -- order. See #428. + + Return an `_Attributes`. + """ + cd = cls.__dict__ + anns = _get_annotations(cls) + + if these is not None: + ca_list = [(name, ca) for name, ca in these.items()] + + if not isinstance(these, ordered_dict): + ca_list.sort(key=_counter_getter) + elif auto_attribs is True: + ca_names = { + name + for name, attr in cd.items() + if isinstance(attr, _CountingAttr) + } + ca_list = [] + annot_names = set() + for attr_name, type in anns.items(): + if _is_class_var(type): + continue + annot_names.add(attr_name) + a = cd.get(attr_name, NOTHING) + + if not isinstance(a, _CountingAttr): + if a is NOTHING: + a = attrib() + else: + a = attrib(default=a) + ca_list.append((attr_name, a)) + + unannotated = ca_names - annot_names + if len(unannotated) > 0: + raise UnannotatedAttributeError( + "The following `attr.ib`s lack a type annotation: " + + ", ".join( + sorted(unannotated, key=lambda n: cd.get(n).counter) + ) + + "." + ) + else: + ca_list = sorted( + ( + (name, attr) + for name, attr in cd.items() + if isinstance(attr, _CountingAttr) + ), + key=lambda e: e[1].counter, + ) + + own_attrs = [ + Attribute.from_counting_attr( + name=attr_name, ca=ca, type=anns.get(attr_name) + ) + for attr_name, ca in ca_list + ] + + if collect_by_mro: + base_attrs, base_attr_map = _collect_base_attrs( + cls, {a.name for a in own_attrs} + ) + else: + base_attrs, base_attr_map = _collect_base_attrs_broken( + cls, {a.name for a in own_attrs} + ) + + if kw_only: + own_attrs = [a.evolve(kw_only=True) for a in own_attrs] + base_attrs = [a.evolve(kw_only=True) for a in base_attrs] + + attrs = base_attrs + own_attrs + + # Mandatory vs non-mandatory attr order only matters when they are part of + # the __init__ signature and when they aren't kw_only (which are moved to + # the end and can be mandatory or non-mandatory in any order, as they will + # be specified as keyword args anyway). Check the order of those attrs: + had_default = False + for a in (a for a in attrs if a.init is not False and a.kw_only is False): + if had_default is True and a.default is NOTHING: + raise ValueError( + "No mandatory attributes allowed after an attribute with a " + "default value or factory. Attribute in question: %r" % (a,) + ) + + if had_default is False and a.default is not NOTHING: + had_default = True + + if field_transformer is not None: + attrs = field_transformer(cls, attrs) + + # Create AttrsClass *after* applying the field_transformer since it may + # add or remove attributes! + attr_names = [a.name for a in attrs] + AttrsClass = _make_attr_tuple_class(cls.__name__, attr_names) + + return _Attributes((AttrsClass(attrs), base_attrs, base_attr_map)) + + +if PYPY: + + def _frozen_setattrs(self, name, value): + """ + Attached to frozen classes as __setattr__. + """ + if isinstance(self, BaseException) and name in ( + "__cause__", + "__context__", + ): + BaseException.__setattr__(self, name, value) + return + + raise FrozenInstanceError() + +else: + + def _frozen_setattrs(self, name, value): + """ + Attached to frozen classes as __setattr__. + """ + raise FrozenInstanceError() + + +def _frozen_delattrs(self, name): + """ + Attached to frozen classes as __delattr__. + """ + raise FrozenInstanceError() + + +class _ClassBuilder: + """ + Iteratively build *one* class. + """ + + __slots__ = ( + "_attr_names", + "_attrs", + "_base_attr_map", + "_base_names", + "_cache_hash", + "_cls", + "_cls_dict", + "_delete_attribs", + "_frozen", + "_has_pre_init", + "_has_post_init", + "_is_exc", + "_on_setattr", + "_slots", + "_weakref_slot", + "_wrote_own_setattr", + "_has_custom_setattr", + ) + + def __init__( + self, + cls, + these, + slots, + frozen, + weakref_slot, + getstate_setstate, + auto_attribs, + kw_only, + cache_hash, + is_exc, + collect_by_mro, + on_setattr, + has_custom_setattr, + field_transformer, + ): + attrs, base_attrs, base_map = _transform_attrs( + cls, + these, + auto_attribs, + kw_only, + collect_by_mro, + field_transformer, + ) + + self._cls = cls + self._cls_dict = dict(cls.__dict__) if slots else {} + self._attrs = attrs + self._base_names = {a.name for a in base_attrs} + self._base_attr_map = base_map + self._attr_names = tuple(a.name for a in attrs) + self._slots = slots + self._frozen = frozen + self._weakref_slot = weakref_slot + self._cache_hash = cache_hash + self._has_pre_init = bool(getattr(cls, "__attrs_pre_init__", False)) + self._has_post_init = bool(getattr(cls, "__attrs_post_init__", False)) + self._delete_attribs = not bool(these) + self._is_exc = is_exc + self._on_setattr = on_setattr + + self._has_custom_setattr = has_custom_setattr + self._wrote_own_setattr = False + + self._cls_dict["__attrs_attrs__"] = self._attrs + + if frozen: + self._cls_dict["__setattr__"] = _frozen_setattrs + self._cls_dict["__delattr__"] = _frozen_delattrs + + self._wrote_own_setattr = True + elif on_setattr in ( + _ng_default_on_setattr, + setters.validate, + setters.convert, + ): + has_validator = has_converter = False + for a in attrs: + if a.validator is not None: + has_validator = True + if a.converter is not None: + has_converter = True + + if has_validator and has_converter: + break + if ( + ( + on_setattr == _ng_default_on_setattr + and not (has_validator or has_converter) + ) + or (on_setattr == setters.validate and not has_validator) + or (on_setattr == setters.convert and not has_converter) + ): + # If class-level on_setattr is set to convert + validate, but + # there's no field to convert or validate, pretend like there's + # no on_setattr. + self._on_setattr = None + + if getstate_setstate: + ( + self._cls_dict["__getstate__"], + self._cls_dict["__setstate__"], + ) = self._make_getstate_setstate() + + def __repr__(self): + return "<_ClassBuilder(cls={cls})>".format(cls=self._cls.__name__) + + def build_class(self): + """ + Finalize class based on the accumulated configuration. + + Builder cannot be used after calling this method. + """ + if self._slots is True: + return self._create_slots_class() + else: + return self._patch_original_class() + + def _patch_original_class(self): + """ + Apply accumulated methods and return the class. + """ + cls = self._cls + base_names = self._base_names + + # Clean class of attribute definitions (`attr.ib()`s). + if self._delete_attribs: + for name in self._attr_names: + if ( + name not in base_names + and getattr(cls, name, _sentinel) is not _sentinel + ): + try: + delattr(cls, name) + except AttributeError: + # This can happen if a base class defines a class + # variable and we want to set an attribute with the + # same name by using only a type annotation. + pass + + # Attach our dunder methods. + for name, value in self._cls_dict.items(): + setattr(cls, name, value) + + # If we've inherited an attrs __setattr__ and don't write our own, + # reset it to object's. + if not self._wrote_own_setattr and getattr( + cls, "__attrs_own_setattr__", False + ): + cls.__attrs_own_setattr__ = False + + if not self._has_custom_setattr: + cls.__setattr__ = _obj_setattr + + return cls + + def _create_slots_class(self): + """ + Build and return a new class with a `__slots__` attribute. + """ + cd = { + k: v + for k, v in self._cls_dict.items() + if k not in tuple(self._attr_names) + ("__dict__", "__weakref__") + } + + # If our class doesn't have its own implementation of __setattr__ + # (either from the user or by us), check the bases, if one of them has + # an attrs-made __setattr__, that needs to be reset. We don't walk the + # MRO because we only care about our immediate base classes. + # XXX: This can be confused by subclassing a slotted attrs class with + # XXX: a non-attrs class and subclass the resulting class with an attrs + # XXX: class. See `test_slotted_confused` for details. For now that's + # XXX: OK with us. + if not self._wrote_own_setattr: + cd["__attrs_own_setattr__"] = False + + if not self._has_custom_setattr: + for base_cls in self._cls.__bases__: + if base_cls.__dict__.get("__attrs_own_setattr__", False): + cd["__setattr__"] = _obj_setattr + break + + # Traverse the MRO to collect existing slots + # and check for an existing __weakref__. + existing_slots = dict() + weakref_inherited = False + for base_cls in self._cls.__mro__[1:-1]: + if base_cls.__dict__.get("__weakref__", None) is not None: + weakref_inherited = True + existing_slots.update( + { + name: getattr(base_cls, name) + for name in getattr(base_cls, "__slots__", []) + } + ) + + base_names = set(self._base_names) + + names = self._attr_names + if ( + self._weakref_slot + and "__weakref__" not in getattr(self._cls, "__slots__", ()) + and "__weakref__" not in names + and not weakref_inherited + ): + names += ("__weakref__",) + + # We only add the names of attributes that aren't inherited. + # Setting __slots__ to inherited attributes wastes memory. + slot_names = [name for name in names if name not in base_names] + # There are slots for attributes from current class + # that are defined in parent classes. + # As their descriptors may be overridden by a child class, + # we collect them here and update the class dict + reused_slots = { + slot: slot_descriptor + for slot, slot_descriptor in existing_slots.items() + if slot in slot_names + } + slot_names = [name for name in slot_names if name not in reused_slots] + cd.update(reused_slots) + if self._cache_hash: + slot_names.append(_hash_cache_field) + cd["__slots__"] = tuple(slot_names) + + cd["__qualname__"] = self._cls.__qualname__ + + # Create new class based on old class and our methods. + cls = type(self._cls)(self._cls.__name__, self._cls.__bases__, cd) + + # The following is a fix for + # . On Python 3, + # if a method mentions `__class__` or uses the no-arg super(), the + # compiler will bake a reference to the class in the method itself + # as `method.__closure__`. Since we replace the class with a + # clone, we rewrite these references so it keeps working. + for item in cls.__dict__.values(): + if isinstance(item, (classmethod, staticmethod)): + # Class- and staticmethods hide their functions inside. + # These might need to be rewritten as well. + closure_cells = getattr(item.__func__, "__closure__", None) + elif isinstance(item, property): + # Workaround for property `super()` shortcut (PY3-only). + # There is no universal way for other descriptors. + closure_cells = getattr(item.fget, "__closure__", None) + else: + closure_cells = getattr(item, "__closure__", None) + + if not closure_cells: # Catch None or the empty list. + continue + for cell in closure_cells: + try: + match = cell.cell_contents is self._cls + except ValueError: # ValueError: Cell is empty + pass + else: + if match: + set_closure_cell(cell, cls) + + return cls + + def add_repr(self, ns): + self._cls_dict["__repr__"] = self._add_method_dunders( + _make_repr(self._attrs, ns, self._cls) + ) + return self + + def add_str(self): + repr = self._cls_dict.get("__repr__") + if repr is None: + raise ValueError( + "__str__ can only be generated if a __repr__ exists." + ) + + def __str__(self): + return self.__repr__() + + self._cls_dict["__str__"] = self._add_method_dunders(__str__) + return self + + def _make_getstate_setstate(self): + """ + Create custom __setstate__ and __getstate__ methods. + """ + # __weakref__ is not writable. + state_attr_names = tuple( + an for an in self._attr_names if an != "__weakref__" + ) + + def slots_getstate(self): + """ + Automatically created by attrs. + """ + return tuple(getattr(self, name) for name in state_attr_names) + + hash_caching_enabled = self._cache_hash + + def slots_setstate(self, state): + """ + Automatically created by attrs. + """ + __bound_setattr = _obj_setattr.__get__(self, Attribute) + for name, value in zip(state_attr_names, state): + __bound_setattr(name, value) + + # The hash code cache is not included when the object is + # serialized, but it still needs to be initialized to None to + # indicate that the first call to __hash__ should be a cache + # miss. + if hash_caching_enabled: + __bound_setattr(_hash_cache_field, None) + + return slots_getstate, slots_setstate + + def make_unhashable(self): + self._cls_dict["__hash__"] = None + return self + + def add_hash(self): + self._cls_dict["__hash__"] = self._add_method_dunders( + _make_hash( + self._cls, + self._attrs, + frozen=self._frozen, + cache_hash=self._cache_hash, + ) + ) + + return self + + def add_init(self): + self._cls_dict["__init__"] = self._add_method_dunders( + _make_init( + self._cls, + self._attrs, + self._has_pre_init, + self._has_post_init, + self._frozen, + self._slots, + self._cache_hash, + self._base_attr_map, + self._is_exc, + self._on_setattr, + attrs_init=False, + ) + ) + + return self + + def add_match_args(self): + self._cls_dict["__match_args__"] = tuple( + field.name + for field in self._attrs + if field.init and not field.kw_only + ) + + def add_attrs_init(self): + self._cls_dict["__attrs_init__"] = self._add_method_dunders( + _make_init( + self._cls, + self._attrs, + self._has_pre_init, + self._has_post_init, + self._frozen, + self._slots, + self._cache_hash, + self._base_attr_map, + self._is_exc, + self._on_setattr, + attrs_init=True, + ) + ) + + return self + + def add_eq(self): + cd = self._cls_dict + + cd["__eq__"] = self._add_method_dunders( + _make_eq(self._cls, self._attrs) + ) + cd["__ne__"] = self._add_method_dunders(_make_ne()) + + return self + + def add_order(self): + cd = self._cls_dict + + cd["__lt__"], cd["__le__"], cd["__gt__"], cd["__ge__"] = ( + self._add_method_dunders(meth) + for meth in _make_order(self._cls, self._attrs) + ) + + return self + + def add_setattr(self): + if self._frozen: + return self + + sa_attrs = {} + for a in self._attrs: + on_setattr = a.on_setattr or self._on_setattr + if on_setattr and on_setattr is not setters.NO_OP: + sa_attrs[a.name] = a, on_setattr + + if not sa_attrs: + return self + + if self._has_custom_setattr: + # We need to write a __setattr__ but there already is one! + raise ValueError( + "Can't combine custom __setattr__ with on_setattr hooks." + ) + + # docstring comes from _add_method_dunders + def __setattr__(self, name, val): + try: + a, hook = sa_attrs[name] + except KeyError: + nval = val + else: + nval = hook(self, a, val) + + _obj_setattr(self, name, nval) + + self._cls_dict["__attrs_own_setattr__"] = True + self._cls_dict["__setattr__"] = self._add_method_dunders(__setattr__) + self._wrote_own_setattr = True + + return self + + def _add_method_dunders(self, method): + """ + Add __module__ and __qualname__ to a *method* if possible. + """ + try: + method.__module__ = self._cls.__module__ + except AttributeError: + pass + + try: + method.__qualname__ = ".".join( + (self._cls.__qualname__, method.__name__) + ) + except AttributeError: + pass + + try: + method.__doc__ = "Method generated by attrs for class %s." % ( + self._cls.__qualname__, + ) + except AttributeError: + pass + + return method + + +def _determine_attrs_eq_order(cmp, eq, order, default_eq): + """ + Validate the combination of *cmp*, *eq*, and *order*. Derive the effective + values of eq and order. If *eq* is None, set it to *default_eq*. + """ + if cmp is not None and any((eq is not None, order is not None)): + raise ValueError("Don't mix `cmp` with `eq' and `order`.") + + # cmp takes precedence due to bw-compatibility. + if cmp is not None: + return cmp, cmp + + # If left None, equality is set to the specified default and ordering + # mirrors equality. + if eq is None: + eq = default_eq + + if order is None: + order = eq + + if eq is False and order is True: + raise ValueError("`order` can only be True if `eq` is True too.") + + return eq, order + + +def _determine_attrib_eq_order(cmp, eq, order, default_eq): + """ + Validate the combination of *cmp*, *eq*, and *order*. Derive the effective + values of eq and order. If *eq* is None, set it to *default_eq*. + """ + if cmp is not None and any((eq is not None, order is not None)): + raise ValueError("Don't mix `cmp` with `eq' and `order`.") + + def decide_callable_or_boolean(value): + """ + Decide whether a key function is used. + """ + if callable(value): + value, key = True, value + else: + key = None + return value, key + + # cmp takes precedence due to bw-compatibility. + if cmp is not None: + cmp, cmp_key = decide_callable_or_boolean(cmp) + return cmp, cmp_key, cmp, cmp_key + + # If left None, equality is set to the specified default and ordering + # mirrors equality. + if eq is None: + eq, eq_key = default_eq, None + else: + eq, eq_key = decide_callable_or_boolean(eq) + + if order is None: + order, order_key = eq, eq_key + else: + order, order_key = decide_callable_or_boolean(order) + + if eq is False and order is True: + raise ValueError("`order` can only be True if `eq` is True too.") + + return eq, eq_key, order, order_key + + +def _determine_whether_to_implement( + cls, flag, auto_detect, dunders, default=True +): + """ + Check whether we should implement a set of methods for *cls*. + + *flag* is the argument passed into @attr.s like 'init', *auto_detect* the + same as passed into @attr.s and *dunders* is a tuple of attribute names + whose presence signal that the user has implemented it themselves. + + Return *default* if no reason for either for or against is found. + """ + if flag is True or flag is False: + return flag + + if flag is None and auto_detect is False: + return default + + # Logically, flag is None and auto_detect is True here. + for dunder in dunders: + if _has_own_attribute(cls, dunder): + return False + + return default + + +def attrs( + maybe_cls=None, + these=None, + repr_ns=None, + repr=None, + cmp=None, + hash=None, + init=None, + slots=False, + frozen=False, + weakref_slot=True, + str=False, + auto_attribs=False, + kw_only=False, + cache_hash=False, + auto_exc=False, + eq=None, + order=None, + auto_detect=False, + collect_by_mro=False, + getstate_setstate=None, + on_setattr=None, + field_transformer=None, + match_args=True, +): + r""" + A class decorator that adds `dunder + `_\ -methods according to the + specified attributes using `attr.ib` or the *these* argument. + + :param these: A dictionary of name to `attr.ib` mappings. This is + useful to avoid the definition of your attributes within the class body + because you can't (e.g. if you want to add ``__repr__`` methods to + Django models) or don't want to. + + If *these* is not ``None``, ``attrs`` will *not* search the class body + for attributes and will *not* remove any attributes from it. + + If *these* is an ordered dict (`dict` on Python 3.6+, + `collections.OrderedDict` otherwise), the order is deduced from + the order of the attributes inside *these*. Otherwise the order + of the definition of the attributes is used. + + :type these: `dict` of `str` to `attr.ib` + + :param str repr_ns: When using nested classes, there's no way in Python 2 + to automatically detect that. Therefore it's possible to set the + namespace explicitly for a more meaningful ``repr`` output. + :param bool auto_detect: Instead of setting the *init*, *repr*, *eq*, + *order*, and *hash* arguments explicitly, assume they are set to + ``True`` **unless any** of the involved methods for one of the + arguments is implemented in the *current* class (i.e. it is *not* + inherited from some base class). + + So for example by implementing ``__eq__`` on a class yourself, + ``attrs`` will deduce ``eq=False`` and will create *neither* + ``__eq__`` *nor* ``__ne__`` (but Python classes come with a sensible + ``__ne__`` by default, so it *should* be enough to only implement + ``__eq__`` in most cases). + + .. warning:: + + If you prevent ``attrs`` from creating the ordering methods for you + (``order=False``, e.g. by implementing ``__le__``), it becomes + *your* responsibility to make sure its ordering is sound. The best + way is to use the `functools.total_ordering` decorator. + + + Passing ``True`` or ``False`` to *init*, *repr*, *eq*, *order*, + *cmp*, or *hash* overrides whatever *auto_detect* would determine. + + *auto_detect* requires Python 3. Setting it ``True`` on Python 2 raises + an `attrs.exceptions.PythonTooOldError`. + + :param bool repr: Create a ``__repr__`` method with a human readable + representation of ``attrs`` attributes.. + :param bool str: Create a ``__str__`` method that is identical to + ``__repr__``. This is usually not necessary except for + `Exception`\ s. + :param Optional[bool] eq: If ``True`` or ``None`` (default), add ``__eq__`` + and ``__ne__`` methods that check two instances for equality. + + They compare the instances as if they were tuples of their ``attrs`` + attributes if and only if the types of both classes are *identical*! + :param Optional[bool] order: If ``True``, add ``__lt__``, ``__le__``, + ``__gt__``, and ``__ge__`` methods that behave like *eq* above and + allow instances to be ordered. If ``None`` (default) mirror value of + *eq*. + :param Optional[bool] cmp: Setting *cmp* is equivalent to setting *eq* + and *order* to the same value. Must not be mixed with *eq* or *order*. + :param Optional[bool] hash: If ``None`` (default), the ``__hash__`` method + is generated according how *eq* and *frozen* are set. + + 1. If *both* are True, ``attrs`` will generate a ``__hash__`` for you. + 2. If *eq* is True and *frozen* is False, ``__hash__`` will be set to + None, marking it unhashable (which it is). + 3. If *eq* is False, ``__hash__`` will be left untouched meaning the + ``__hash__`` method of the base class will be used (if base class is + ``object``, this means it will fall back to id-based hashing.). + + Although not recommended, you can decide for yourself and force + ``attrs`` to create one (e.g. if the class is immutable even though you + didn't freeze it programmatically) by passing ``True`` or not. Both of + these cases are rather special and should be used carefully. + + See our documentation on `hashing`, Python's documentation on + `object.__hash__`, and the `GitHub issue that led to the default \ + behavior `_ for more + details. + :param bool init: Create a ``__init__`` method that initializes the + ``attrs`` attributes. Leading underscores are stripped for the argument + name. If a ``__attrs_pre_init__`` method exists on the class, it will + be called before the class is initialized. If a ``__attrs_post_init__`` + method exists on the class, it will be called after the class is fully + initialized. + + If ``init`` is ``False``, an ``__attrs_init__`` method will be + injected instead. This allows you to define a custom ``__init__`` + method that can do pre-init work such as ``super().__init__()``, + and then call ``__attrs_init__()`` and ``__attrs_post_init__()``. + :param bool slots: Create a `slotted class ` that's more + memory-efficient. Slotted classes are generally superior to the default + dict classes, but have some gotchas you should know about, so we + encourage you to read the `glossary entry `. + :param bool frozen: Make instances immutable after initialization. If + someone attempts to modify a frozen instance, + `attr.exceptions.FrozenInstanceError` is raised. + + .. note:: + + 1. This is achieved by installing a custom ``__setattr__`` method + on your class, so you can't implement your own. + + 2. True immutability is impossible in Python. + + 3. This *does* have a minor a runtime performance `impact + ` when initializing new instances. In other words: + ``__init__`` is slightly slower with ``frozen=True``. + + 4. If a class is frozen, you cannot modify ``self`` in + ``__attrs_post_init__`` or a self-written ``__init__``. You can + circumvent that limitation by using + ``object.__setattr__(self, "attribute_name", value)``. + + 5. Subclasses of a frozen class are frozen too. + + :param bool weakref_slot: Make instances weak-referenceable. This has no + effect unless ``slots`` is also enabled. + :param bool auto_attribs: If ``True``, collect :pep:`526`-annotated + attributes (Python 3.6 and later only) from the class body. + + In this case, you **must** annotate every field. If ``attrs`` + encounters a field that is set to an `attr.ib` but lacks a type + annotation, an `attr.exceptions.UnannotatedAttributeError` is + raised. Use ``field_name: typing.Any = attr.ib(...)`` if you don't + want to set a type. + + If you assign a value to those attributes (e.g. ``x: int = 42``), that + value becomes the default value like if it were passed using + ``attr.ib(default=42)``. Passing an instance of `attrs.Factory` also + works as expected in most cases (see warning below). + + Attributes annotated as `typing.ClassVar`, and attributes that are + neither annotated nor set to an `attr.ib` are **ignored**. + + .. warning:: + For features that use the attribute name to create decorators (e.g. + `validators `), you still *must* assign `attr.ib` to + them. Otherwise Python will either not find the name or try to use + the default value to call e.g. ``validator`` on it. + + These errors can be quite confusing and probably the most common bug + report on our bug tracker. + + :param bool kw_only: Make all attributes keyword-only (Python 3+) + in the generated ``__init__`` (if ``init`` is ``False``, this + parameter is ignored). + :param bool cache_hash: Ensure that the object's hash code is computed + only once and stored on the object. If this is set to ``True``, + hashing must be either explicitly or implicitly enabled for this + class. If the hash code is cached, avoid any reassignments of + fields involved in hash code computation or mutations of the objects + those fields point to after object creation. If such changes occur, + the behavior of the object's hash code is undefined. + :param bool auto_exc: If the class subclasses `BaseException` + (which implicitly includes any subclass of any exception), the + following happens to behave like a well-behaved Python exceptions + class: + + - the values for *eq*, *order*, and *hash* are ignored and the + instances compare and hash by the instance's ids (N.B. ``attrs`` will + *not* remove existing implementations of ``__hash__`` or the equality + methods. It just won't add own ones.), + - all attributes that are either passed into ``__init__`` or have a + default value are additionally available as a tuple in the ``args`` + attribute, + - the value of *str* is ignored leaving ``__str__`` to base classes. + :param bool collect_by_mro: Setting this to `True` fixes the way ``attrs`` + collects attributes from base classes. The default behavior is + incorrect in certain cases of multiple inheritance. It should be on by + default but is kept off for backward-compatibility. + + See issue `#428 `_ for + more details. + + :param Optional[bool] getstate_setstate: + .. note:: + This is usually only interesting for slotted classes and you should + probably just set *auto_detect* to `True`. + + If `True`, ``__getstate__`` and + ``__setstate__`` are generated and attached to the class. This is + necessary for slotted classes to be pickleable. If left `None`, it's + `True` by default for slotted classes and ``False`` for dict classes. + + If *auto_detect* is `True`, and *getstate_setstate* is left `None`, + and **either** ``__getstate__`` or ``__setstate__`` is detected directly + on the class (i.e. not inherited), it is set to `False` (this is usually + what you want). + + :param on_setattr: A callable that is run whenever the user attempts to set + an attribute (either by assignment like ``i.x = 42`` or by using + `setattr` like ``setattr(i, "x", 42)``). It receives the same arguments + as validators: the instance, the attribute that is being modified, and + the new value. + + If no exception is raised, the attribute is set to the return value of + the callable. + + If a list of callables is passed, they're automatically wrapped in an + `attrs.setters.pipe`. + :type on_setattr: `callable`, or a list of callables, or `None`, or + `attrs.setters.NO_OP` + + :param Optional[callable] field_transformer: + A function that is called with the original class object and all + fields right before ``attrs`` finalizes the class. You can use + this, e.g., to automatically add converters or validators to + fields based on their types. See `transform-fields` for more details. + + :param bool match_args: + If `True` (default), set ``__match_args__`` on the class to support + :pep:`634` (Structural Pattern Matching). It is a tuple of all + non-keyword-only ``__init__`` parameter names on Python 3.10 and later. + Ignored on older Python versions. + + .. versionadded:: 16.0.0 *slots* + .. versionadded:: 16.1.0 *frozen* + .. versionadded:: 16.3.0 *str* + .. versionadded:: 16.3.0 Support for ``__attrs_post_init__``. + .. versionchanged:: 17.1.0 + *hash* supports ``None`` as value which is also the default now. + .. versionadded:: 17.3.0 *auto_attribs* + .. versionchanged:: 18.1.0 + If *these* is passed, no attributes are deleted from the class body. + .. versionchanged:: 18.1.0 If *these* is ordered, the order is retained. + .. versionadded:: 18.2.0 *weakref_slot* + .. deprecated:: 18.2.0 + ``__lt__``, ``__le__``, ``__gt__``, and ``__ge__`` now raise a + `DeprecationWarning` if the classes compared are subclasses of + each other. ``__eq`` and ``__ne__`` never tried to compared subclasses + to each other. + .. versionchanged:: 19.2.0 + ``__lt__``, ``__le__``, ``__gt__``, and ``__ge__`` now do not consider + subclasses comparable anymore. + .. versionadded:: 18.2.0 *kw_only* + .. versionadded:: 18.2.0 *cache_hash* + .. versionadded:: 19.1.0 *auto_exc* + .. deprecated:: 19.2.0 *cmp* Removal on or after 2021-06-01. + .. versionadded:: 19.2.0 *eq* and *order* + .. versionadded:: 20.1.0 *auto_detect* + .. versionadded:: 20.1.0 *collect_by_mro* + .. versionadded:: 20.1.0 *getstate_setstate* + .. versionadded:: 20.1.0 *on_setattr* + .. versionadded:: 20.3.0 *field_transformer* + .. versionchanged:: 21.1.0 + ``init=False`` injects ``__attrs_init__`` + .. versionchanged:: 21.1.0 Support for ``__attrs_pre_init__`` + .. versionchanged:: 21.1.0 *cmp* undeprecated + .. versionadded:: 21.3.0 *match_args* + """ + eq_, order_ = _determine_attrs_eq_order(cmp, eq, order, None) + hash_ = hash # work around the lack of nonlocal + + if isinstance(on_setattr, (list, tuple)): + on_setattr = setters.pipe(*on_setattr) + + def wrap(cls): + is_frozen = frozen or _has_frozen_base_class(cls) + is_exc = auto_exc is True and issubclass(cls, BaseException) + has_own_setattr = auto_detect and _has_own_attribute( + cls, "__setattr__" + ) + + if has_own_setattr and is_frozen: + raise ValueError("Can't freeze a class with a custom __setattr__.") + + builder = _ClassBuilder( + cls, + these, + slots, + is_frozen, + weakref_slot, + _determine_whether_to_implement( + cls, + getstate_setstate, + auto_detect, + ("__getstate__", "__setstate__"), + default=slots, + ), + auto_attribs, + kw_only, + cache_hash, + is_exc, + collect_by_mro, + on_setattr, + has_own_setattr, + field_transformer, + ) + if _determine_whether_to_implement( + cls, repr, auto_detect, ("__repr__",) + ): + builder.add_repr(repr_ns) + if str is True: + builder.add_str() + + eq = _determine_whether_to_implement( + cls, eq_, auto_detect, ("__eq__", "__ne__") + ) + if not is_exc and eq is True: + builder.add_eq() + if not is_exc and _determine_whether_to_implement( + cls, order_, auto_detect, ("__lt__", "__le__", "__gt__", "__ge__") + ): + builder.add_order() + + builder.add_setattr() + + if ( + hash_ is None + and auto_detect is True + and _has_own_attribute(cls, "__hash__") + ): + hash = False + else: + hash = hash_ + if hash is not True and hash is not False and hash is not None: + # Can't use `hash in` because 1 == True for example. + raise TypeError( + "Invalid value for hash. Must be True, False, or None." + ) + elif hash is False or (hash is None and eq is False) or is_exc: + # Don't do anything. Should fall back to __object__'s __hash__ + # which is by id. + if cache_hash: + raise TypeError( + "Invalid value for cache_hash. To use hash caching," + " hashing must be either explicitly or implicitly " + "enabled." + ) + elif hash is True or ( + hash is None and eq is True and is_frozen is True + ): + # Build a __hash__ if told so, or if it's safe. + builder.add_hash() + else: + # Raise TypeError on attempts to hash. + if cache_hash: + raise TypeError( + "Invalid value for cache_hash. To use hash caching," + " hashing must be either explicitly or implicitly " + "enabled." + ) + builder.make_unhashable() + + if _determine_whether_to_implement( + cls, init, auto_detect, ("__init__",) + ): + builder.add_init() + else: + builder.add_attrs_init() + if cache_hash: + raise TypeError( + "Invalid value for cache_hash. To use hash caching," + " init must be True." + ) + + if ( + PY310 + and match_args + and not _has_own_attribute(cls, "__match_args__") + ): + builder.add_match_args() + + return builder.build_class() + + # maybe_cls's type depends on the usage of the decorator. It's a class + # if it's used as `@attrs` but ``None`` if used as `@attrs()`. + if maybe_cls is None: + return wrap + else: + return wrap(maybe_cls) + + +_attrs = attrs +""" +Internal alias so we can use it in functions that take an argument called +*attrs*. +""" + + +def _has_frozen_base_class(cls): + """ + Check whether *cls* has a frozen ancestor by looking at its + __setattr__. + """ + return cls.__setattr__ is _frozen_setattrs + + +def _generate_unique_filename(cls, func_name): + """ + Create a "filename" suitable for a function being generated. + """ + unique_filename = "".format( + func_name, + cls.__module__, + getattr(cls, "__qualname__", cls.__name__), + ) + return unique_filename + + +def _make_hash(cls, attrs, frozen, cache_hash): + attrs = tuple( + a for a in attrs if a.hash is True or (a.hash is None and a.eq is True) + ) + + tab = " " + + unique_filename = _generate_unique_filename(cls, "hash") + type_hash = hash(unique_filename) + # If eq is custom generated, we need to include the functions in globs + globs = {} + + hash_def = "def __hash__(self" + hash_func = "hash((" + closing_braces = "))" + if not cache_hash: + hash_def += "):" + else: + hash_def += ", *" + + hash_def += ( + ", _cache_wrapper=" + + "__import__('attr._make')._make._CacheHashWrapper):" + ) + hash_func = "_cache_wrapper(" + hash_func + closing_braces += ")" + + method_lines = [hash_def] + + def append_hash_computation_lines(prefix, indent): + """ + Generate the code for actually computing the hash code. + Below this will either be returned directly or used to compute + a value which is then cached, depending on the value of cache_hash + """ + + method_lines.extend( + [ + indent + prefix + hash_func, + indent + " %d," % (type_hash,), + ] + ) + + for a in attrs: + if a.eq_key: + cmp_name = "_%s_key" % (a.name,) + globs[cmp_name] = a.eq_key + method_lines.append( + indent + " %s(self.%s)," % (cmp_name, a.name) + ) + else: + method_lines.append(indent + " self.%s," % a.name) + + method_lines.append(indent + " " + closing_braces) + + if cache_hash: + method_lines.append(tab + "if self.%s is None:" % _hash_cache_field) + if frozen: + append_hash_computation_lines( + "object.__setattr__(self, '%s', " % _hash_cache_field, tab * 2 + ) + method_lines.append(tab * 2 + ")") # close __setattr__ + else: + append_hash_computation_lines( + "self.%s = " % _hash_cache_field, tab * 2 + ) + method_lines.append(tab + "return self.%s" % _hash_cache_field) + else: + append_hash_computation_lines("return ", tab) + + script = "\n".join(method_lines) + return _make_method("__hash__", script, unique_filename, globs) + + +def _add_hash(cls, attrs): + """ + Add a hash method to *cls*. + """ + cls.__hash__ = _make_hash(cls, attrs, frozen=False, cache_hash=False) + return cls + + +def _make_ne(): + """ + Create __ne__ method. + """ + + def __ne__(self, other): + """ + Check equality and either forward a NotImplemented or + return the result negated. + """ + result = self.__eq__(other) + if result is NotImplemented: + return NotImplemented + + return not result + + return __ne__ + + +def _make_eq(cls, attrs): + """ + Create __eq__ method for *cls* with *attrs*. + """ + attrs = [a for a in attrs if a.eq] + + unique_filename = _generate_unique_filename(cls, "eq") + lines = [ + "def __eq__(self, other):", + " if other.__class__ is not self.__class__:", + " return NotImplemented", + ] + + # We can't just do a big self.x = other.x and... clause due to + # irregularities like nan == nan is false but (nan,) == (nan,) is true. + globs = {} + if attrs: + lines.append(" return (") + others = [" ) == ("] + for a in attrs: + if a.eq_key: + cmp_name = "_%s_key" % (a.name,) + # Add the key function to the global namespace + # of the evaluated function. + globs[cmp_name] = a.eq_key + lines.append( + " %s(self.%s)," + % ( + cmp_name, + a.name, + ) + ) + others.append( + " %s(other.%s)," + % ( + cmp_name, + a.name, + ) + ) + else: + lines.append(" self.%s," % (a.name,)) + others.append(" other.%s," % (a.name,)) + + lines += others + [" )"] + else: + lines.append(" return True") + + script = "\n".join(lines) + + return _make_method("__eq__", script, unique_filename, globs) + + +def _make_order(cls, attrs): + """ + Create ordering methods for *cls* with *attrs*. + """ + attrs = [a for a in attrs if a.order] + + def attrs_to_tuple(obj): + """ + Save us some typing. + """ + return tuple( + key(value) if key else value + for value, key in ( + (getattr(obj, a.name), a.order_key) for a in attrs + ) + ) + + def __lt__(self, other): + """ + Automatically created by attrs. + """ + if other.__class__ is self.__class__: + return attrs_to_tuple(self) < attrs_to_tuple(other) + + return NotImplemented + + def __le__(self, other): + """ + Automatically created by attrs. + """ + if other.__class__ is self.__class__: + return attrs_to_tuple(self) <= attrs_to_tuple(other) + + return NotImplemented + + def __gt__(self, other): + """ + Automatically created by attrs. + """ + if other.__class__ is self.__class__: + return attrs_to_tuple(self) > attrs_to_tuple(other) + + return NotImplemented + + def __ge__(self, other): + """ + Automatically created by attrs. + """ + if other.__class__ is self.__class__: + return attrs_to_tuple(self) >= attrs_to_tuple(other) + + return NotImplemented + + return __lt__, __le__, __gt__, __ge__ + + +def _add_eq(cls, attrs=None): + """ + Add equality methods to *cls* with *attrs*. + """ + if attrs is None: + attrs = cls.__attrs_attrs__ + + cls.__eq__ = _make_eq(cls, attrs) + cls.__ne__ = _make_ne() + + return cls + + +if HAS_F_STRINGS: + + def _make_repr(attrs, ns, cls): + unique_filename = _generate_unique_filename(cls, "repr") + # Figure out which attributes to include, and which function to use to + # format them. The a.repr value can be either bool or a custom + # callable. + attr_names_with_reprs = tuple( + (a.name, (repr if a.repr is True else a.repr), a.init) + for a in attrs + if a.repr is not False + ) + globs = { + name + "_repr": r + for name, r, _ in attr_names_with_reprs + if r != repr + } + globs["_compat"] = _compat + globs["AttributeError"] = AttributeError + globs["NOTHING"] = NOTHING + attribute_fragments = [] + for name, r, i in attr_names_with_reprs: + accessor = ( + "self." + name + if i + else 'getattr(self, "' + name + '", NOTHING)' + ) + fragment = ( + "%s={%s!r}" % (name, accessor) + if r == repr + else "%s={%s_repr(%s)}" % (name, name, accessor) + ) + attribute_fragments.append(fragment) + repr_fragment = ", ".join(attribute_fragments) + + if ns is None: + cls_name_fragment = ( + '{self.__class__.__qualname__.rsplit(">.", 1)[-1]}' + ) + else: + cls_name_fragment = ns + ".{self.__class__.__name__}" + + lines = [ + "def __repr__(self):", + " try:", + " already_repring = _compat.repr_context.already_repring", + " except AttributeError:", + " already_repring = {id(self),}", + " _compat.repr_context.already_repring = already_repring", + " else:", + " if id(self) in already_repring:", + " return '...'", + " else:", + " already_repring.add(id(self))", + " try:", + " return f'%s(%s)'" % (cls_name_fragment, repr_fragment), + " finally:", + " already_repring.remove(id(self))", + ] + + return _make_method( + "__repr__", "\n".join(lines), unique_filename, globs=globs + ) + +else: + + def _make_repr(attrs, ns, _): + """ + Make a repr method that includes relevant *attrs*, adding *ns* to the + full name. + """ + + # Figure out which attributes to include, and which function to use to + # format them. The a.repr value can be either bool or a custom + # callable. + attr_names_with_reprs = tuple( + (a.name, repr if a.repr is True else a.repr) + for a in attrs + if a.repr is not False + ) + + def __repr__(self): + """ + Automatically created by attrs. + """ + try: + already_repring = _compat.repr_context.already_repring + except AttributeError: + already_repring = set() + _compat.repr_context.already_repring = already_repring + + if id(self) in already_repring: + return "..." + real_cls = self.__class__ + if ns is None: + class_name = real_cls.__qualname__.rsplit(">.", 1)[-1] + else: + class_name = ns + "." + real_cls.__name__ + + # Since 'self' remains on the stack (i.e.: strongly referenced) + # for the duration of this call, it's safe to depend on id(...) + # stability, and not need to track the instance and therefore + # worry about properties like weakref- or hash-ability. + already_repring.add(id(self)) + try: + result = [class_name, "("] + first = True + for name, attr_repr in attr_names_with_reprs: + if first: + first = False + else: + result.append(", ") + result.extend( + (name, "=", attr_repr(getattr(self, name, NOTHING))) + ) + return "".join(result) + ")" + finally: + already_repring.remove(id(self)) + + return __repr__ + + +def _add_repr(cls, ns=None, attrs=None): + """ + Add a repr method to *cls*. + """ + if attrs is None: + attrs = cls.__attrs_attrs__ + + cls.__repr__ = _make_repr(attrs, ns, cls) + return cls + + +def fields(cls): + """ + Return the tuple of ``attrs`` attributes for a class. + + The tuple also allows accessing the fields by their names (see below for + examples). + + :param type cls: Class to introspect. + + :raise TypeError: If *cls* is not a class. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + :rtype: tuple (with name accessors) of `attrs.Attribute` + + .. versionchanged:: 16.2.0 Returned tuple allows accessing the fields + by name. + """ + if not isinstance(cls, type): + raise TypeError("Passed object must be a class.") + attrs = getattr(cls, "__attrs_attrs__", None) + if attrs is None: + raise NotAnAttrsClassError( + "{cls!r} is not an attrs-decorated class.".format(cls=cls) + ) + return attrs + + +def fields_dict(cls): + """ + Return an ordered dictionary of ``attrs`` attributes for a class, whose + keys are the attribute names. + + :param type cls: Class to introspect. + + :raise TypeError: If *cls* is not a class. + :raise attr.exceptions.NotAnAttrsClassError: If *cls* is not an ``attrs`` + class. + + :rtype: an ordered dict where keys are attribute names and values are + `attrs.Attribute`\\ s. This will be a `dict` if it's + naturally ordered like on Python 3.6+ or an + :class:`~collections.OrderedDict` otherwise. + + .. versionadded:: 18.1.0 + """ + if not isinstance(cls, type): + raise TypeError("Passed object must be a class.") + attrs = getattr(cls, "__attrs_attrs__", None) + if attrs is None: + raise NotAnAttrsClassError( + "{cls!r} is not an attrs-decorated class.".format(cls=cls) + ) + return ordered_dict((a.name, a) for a in attrs) + + +def validate(inst): + """ + Validate all attributes on *inst* that have a validator. + + Leaves all exceptions through. + + :param inst: Instance of a class with ``attrs`` attributes. + """ + if _config._run_validators is False: + return + + for a in fields(inst.__class__): + v = a.validator + if v is not None: + v(inst, a, getattr(inst, a.name)) + + +def _is_slot_cls(cls): + return "__slots__" in cls.__dict__ + + +def _is_slot_attr(a_name, base_attr_map): + """ + Check if the attribute name comes from a slot class. + """ + return a_name in base_attr_map and _is_slot_cls(base_attr_map[a_name]) + + +def _make_init( + cls, + attrs, + pre_init, + post_init, + frozen, + slots, + cache_hash, + base_attr_map, + is_exc, + cls_on_setattr, + attrs_init, +): + has_cls_on_setattr = ( + cls_on_setattr is not None and cls_on_setattr is not setters.NO_OP + ) + + if frozen and has_cls_on_setattr: + raise ValueError("Frozen classes can't use on_setattr.") + + needs_cached_setattr = cache_hash or frozen + filtered_attrs = [] + attr_dict = {} + for a in attrs: + if not a.init and a.default is NOTHING: + continue + + filtered_attrs.append(a) + attr_dict[a.name] = a + + if a.on_setattr is not None: + if frozen is True: + raise ValueError("Frozen classes can't use on_setattr.") + + needs_cached_setattr = True + elif has_cls_on_setattr and a.on_setattr is not setters.NO_OP: + needs_cached_setattr = True + + unique_filename = _generate_unique_filename(cls, "init") + + script, globs, annotations = _attrs_to_init_script( + filtered_attrs, + frozen, + slots, + pre_init, + post_init, + cache_hash, + base_attr_map, + is_exc, + has_cls_on_setattr, + attrs_init, + ) + if cls.__module__ in sys.modules: + # This makes typing.get_type_hints(CLS.__init__) resolve string types. + globs.update(sys.modules[cls.__module__].__dict__) + + globs.update({"NOTHING": NOTHING, "attr_dict": attr_dict}) + + if needs_cached_setattr: + # Save the lookup overhead in __init__ if we need to circumvent + # setattr hooks. + globs["_setattr"] = _obj_setattr + + init = _make_method( + "__attrs_init__" if attrs_init else "__init__", + script, + unique_filename, + globs, + ) + init.__annotations__ = annotations + + return init + + +def _setattr(attr_name, value_var, has_on_setattr): + """ + Use the cached object.setattr to set *attr_name* to *value_var*. + """ + return "_setattr(self, '%s', %s)" % (attr_name, value_var) + + +def _setattr_with_converter(attr_name, value_var, has_on_setattr): + """ + Use the cached object.setattr to set *attr_name* to *value_var*, but run + its converter first. + """ + return "_setattr(self, '%s', %s(%s))" % ( + attr_name, + _init_converter_pat % (attr_name,), + value_var, + ) + + +def _assign(attr_name, value, has_on_setattr): + """ + Unless *attr_name* has an on_setattr hook, use normal assignment. Otherwise + relegate to _setattr. + """ + if has_on_setattr: + return _setattr(attr_name, value, True) + + return "self.%s = %s" % (attr_name, value) + + +def _assign_with_converter(attr_name, value_var, has_on_setattr): + """ + Unless *attr_name* has an on_setattr hook, use normal assignment after + conversion. Otherwise relegate to _setattr_with_converter. + """ + if has_on_setattr: + return _setattr_with_converter(attr_name, value_var, True) + + return "self.%s = %s(%s)" % ( + attr_name, + _init_converter_pat % (attr_name,), + value_var, + ) + + +def _attrs_to_init_script( + attrs, + frozen, + slots, + pre_init, + post_init, + cache_hash, + base_attr_map, + is_exc, + has_cls_on_setattr, + attrs_init, +): + """ + Return a script of an initializer for *attrs* and a dict of globals. + + The globals are expected by the generated script. + + If *frozen* is True, we cannot set the attributes directly so we use + a cached ``object.__setattr__``. + """ + lines = [] + if pre_init: + lines.append("self.__attrs_pre_init__()") + + if frozen is True: + if slots is True: + fmt_setter = _setattr + fmt_setter_with_converter = _setattr_with_converter + else: + # Dict frozen classes assign directly to __dict__. + # But only if the attribute doesn't come from an ancestor slot + # class. + # Note _inst_dict will be used again below if cache_hash is True + lines.append("_inst_dict = self.__dict__") + + def fmt_setter(attr_name, value_var, has_on_setattr): + if _is_slot_attr(attr_name, base_attr_map): + return _setattr(attr_name, value_var, has_on_setattr) + + return "_inst_dict['%s'] = %s" % (attr_name, value_var) + + def fmt_setter_with_converter( + attr_name, value_var, has_on_setattr + ): + if has_on_setattr or _is_slot_attr(attr_name, base_attr_map): + return _setattr_with_converter( + attr_name, value_var, has_on_setattr + ) + + return "_inst_dict['%s'] = %s(%s)" % ( + attr_name, + _init_converter_pat % (attr_name,), + value_var, + ) + + else: + # Not frozen. + fmt_setter = _assign + fmt_setter_with_converter = _assign_with_converter + + args = [] + kw_only_args = [] + attrs_to_validate = [] + + # This is a dictionary of names to validator and converter callables. + # Injecting this into __init__ globals lets us avoid lookups. + names_for_globals = {} + annotations = {"return": None} + + for a in attrs: + if a.validator: + attrs_to_validate.append(a) + + attr_name = a.name + has_on_setattr = a.on_setattr is not None or ( + a.on_setattr is not setters.NO_OP and has_cls_on_setattr + ) + arg_name = a.name.lstrip("_") + + has_factory = isinstance(a.default, Factory) + if has_factory and a.default.takes_self: + maybe_self = "self" + else: + maybe_self = "" + + if a.init is False: + if has_factory: + init_factory_name = _init_factory_pat.format(a.name) + if a.converter is not None: + lines.append( + fmt_setter_with_converter( + attr_name, + init_factory_name + "(%s)" % (maybe_self,), + has_on_setattr, + ) + ) + conv_name = _init_converter_pat % (a.name,) + names_for_globals[conv_name] = a.converter + else: + lines.append( + fmt_setter( + attr_name, + init_factory_name + "(%s)" % (maybe_self,), + has_on_setattr, + ) + ) + names_for_globals[init_factory_name] = a.default.factory + else: + if a.converter is not None: + lines.append( + fmt_setter_with_converter( + attr_name, + "attr_dict['%s'].default" % (attr_name,), + has_on_setattr, + ) + ) + conv_name = _init_converter_pat % (a.name,) + names_for_globals[conv_name] = a.converter + else: + lines.append( + fmt_setter( + attr_name, + "attr_dict['%s'].default" % (attr_name,), + has_on_setattr, + ) + ) + elif a.default is not NOTHING and not has_factory: + arg = "%s=attr_dict['%s'].default" % (arg_name, attr_name) + if a.kw_only: + kw_only_args.append(arg) + else: + args.append(arg) + + if a.converter is not None: + lines.append( + fmt_setter_with_converter( + attr_name, arg_name, has_on_setattr + ) + ) + names_for_globals[ + _init_converter_pat % (a.name,) + ] = a.converter + else: + lines.append(fmt_setter(attr_name, arg_name, has_on_setattr)) + + elif has_factory: + arg = "%s=NOTHING" % (arg_name,) + if a.kw_only: + kw_only_args.append(arg) + else: + args.append(arg) + lines.append("if %s is not NOTHING:" % (arg_name,)) + + init_factory_name = _init_factory_pat.format(a.name) + if a.converter is not None: + lines.append( + " " + + fmt_setter_with_converter( + attr_name, arg_name, has_on_setattr + ) + ) + lines.append("else:") + lines.append( + " " + + fmt_setter_with_converter( + attr_name, + init_factory_name + "(" + maybe_self + ")", + has_on_setattr, + ) + ) + names_for_globals[ + _init_converter_pat % (a.name,) + ] = a.converter + else: + lines.append( + " " + fmt_setter(attr_name, arg_name, has_on_setattr) + ) + lines.append("else:") + lines.append( + " " + + fmt_setter( + attr_name, + init_factory_name + "(" + maybe_self + ")", + has_on_setattr, + ) + ) + names_for_globals[init_factory_name] = a.default.factory + else: + if a.kw_only: + kw_only_args.append(arg_name) + else: + args.append(arg_name) + + if a.converter is not None: + lines.append( + fmt_setter_with_converter( + attr_name, arg_name, has_on_setattr + ) + ) + names_for_globals[ + _init_converter_pat % (a.name,) + ] = a.converter + else: + lines.append(fmt_setter(attr_name, arg_name, has_on_setattr)) + + if a.init is True: + if a.type is not None and a.converter is None: + annotations[arg_name] = a.type + elif a.converter is not None: + # Try to get the type from the converter. + t = _AnnotationExtractor(a.converter).get_first_param_type() + if t: + annotations[arg_name] = t + + if attrs_to_validate: # we can skip this if there are no validators. + names_for_globals["_config"] = _config + lines.append("if _config._run_validators is True:") + for a in attrs_to_validate: + val_name = "__attr_validator_" + a.name + attr_name = "__attr_" + a.name + lines.append( + " %s(self, %s, self.%s)" % (val_name, attr_name, a.name) + ) + names_for_globals[val_name] = a.validator + names_for_globals[attr_name] = a + + if post_init: + lines.append("self.__attrs_post_init__()") + + # because this is set only after __attrs_post_init__ is called, a crash + # will result if post-init tries to access the hash code. This seemed + # preferable to setting this beforehand, in which case alteration to + # field values during post-init combined with post-init accessing the + # hash code would result in silent bugs. + if cache_hash: + if frozen: + if slots: + # if frozen and slots, then _setattr defined above + init_hash_cache = "_setattr(self, '%s', %s)" + else: + # if frozen and not slots, then _inst_dict defined above + init_hash_cache = "_inst_dict['%s'] = %s" + else: + init_hash_cache = "self.%s = %s" + lines.append(init_hash_cache % (_hash_cache_field, "None")) + + # For exceptions we rely on BaseException.__init__ for proper + # initialization. + if is_exc: + vals = ",".join("self." + a.name for a in attrs if a.init) + + lines.append("BaseException.__init__(self, %s)" % (vals,)) + + args = ", ".join(args) + if kw_only_args: + args += "%s*, %s" % ( + ", " if args else "", # leading comma + ", ".join(kw_only_args), # kw_only args + ) + return ( + """\ +def {init_name}(self, {args}): + {lines} +""".format( + init_name=("__attrs_init__" if attrs_init else "__init__"), + args=args, + lines="\n ".join(lines) if lines else "pass", + ), + names_for_globals, + annotations, + ) + + +class Attribute: + """ + *Read-only* representation of an attribute. + + The class has *all* arguments of `attr.ib` (except for ``factory`` + which is only syntactic sugar for ``default=Factory(...)`` plus the + following: + + - ``name`` (`str`): The name of the attribute. + - ``inherited`` (`bool`): Whether or not that attribute has been inherited + from a base class. + - ``eq_key`` and ``order_key`` (`typing.Callable` or `None`): The callables + that are used for comparing and ordering objects by this attribute, + respectively. These are set by passing a callable to `attr.ib`'s ``eq``, + ``order``, or ``cmp`` arguments. See also :ref:`comparison customization + `. + + Instances of this class are frequently used for introspection purposes + like: + + - `fields` returns a tuple of them. + - Validators get them passed as the first argument. + - The :ref:`field transformer ` hook receives a list of + them. + + .. versionadded:: 20.1.0 *inherited* + .. versionadded:: 20.1.0 *on_setattr* + .. versionchanged:: 20.2.0 *inherited* is not taken into account for + equality checks and hashing anymore. + .. versionadded:: 21.1.0 *eq_key* and *order_key* + + For the full version history of the fields, see `attr.ib`. + """ + + __slots__ = ( + "name", + "default", + "validator", + "repr", + "eq", + "eq_key", + "order", + "order_key", + "hash", + "init", + "metadata", + "type", + "converter", + "kw_only", + "inherited", + "on_setattr", + ) + + def __init__( + self, + name, + default, + validator, + repr, + cmp, # XXX: unused, remove along with other cmp code. + hash, + init, + inherited, + metadata=None, + type=None, + converter=None, + kw_only=False, + eq=None, + eq_key=None, + order=None, + order_key=None, + on_setattr=None, + ): + eq, eq_key, order, order_key = _determine_attrib_eq_order( + cmp, eq_key or eq, order_key or order, True + ) + + # Cache this descriptor here to speed things up later. + bound_setattr = _obj_setattr.__get__(self, Attribute) + + # Despite the big red warning, people *do* instantiate `Attribute` + # themselves. + bound_setattr("name", name) + bound_setattr("default", default) + bound_setattr("validator", validator) + bound_setattr("repr", repr) + bound_setattr("eq", eq) + bound_setattr("eq_key", eq_key) + bound_setattr("order", order) + bound_setattr("order_key", order_key) + bound_setattr("hash", hash) + bound_setattr("init", init) + bound_setattr("converter", converter) + bound_setattr( + "metadata", + ( + types.MappingProxyType(dict(metadata)) # Shallow copy + if metadata + else _empty_metadata_singleton + ), + ) + bound_setattr("type", type) + bound_setattr("kw_only", kw_only) + bound_setattr("inherited", inherited) + bound_setattr("on_setattr", on_setattr) + + def __setattr__(self, name, value): + raise FrozenInstanceError() + + @classmethod + def from_counting_attr(cls, name, ca, type=None): + # type holds the annotated value. deal with conflicts: + if type is None: + type = ca.type + elif ca.type is not None: + raise ValueError( + "Type annotation and type argument cannot both be present" + ) + inst_dict = { + k: getattr(ca, k) + for k in Attribute.__slots__ + if k + not in ( + "name", + "validator", + "default", + "type", + "inherited", + ) # exclude methods and deprecated alias + } + return cls( + name=name, + validator=ca._validator, + default=ca._default, + type=type, + cmp=None, + inherited=False, + **inst_dict + ) + + # Don't use attr.evolve since fields(Attribute) doesn't work + def evolve(self, **changes): + """ + Copy *self* and apply *changes*. + + This works similarly to `attr.evolve` but that function does not work + with ``Attribute``. + + It is mainly meant to be used for `transform-fields`. + + .. versionadded:: 20.3.0 + """ + new = copy.copy(self) + + new._setattrs(changes.items()) + + return new + + # Don't use _add_pickle since fields(Attribute) doesn't work + def __getstate__(self): + """ + Play nice with pickle. + """ + return tuple( + getattr(self, name) if name != "metadata" else dict(self.metadata) + for name in self.__slots__ + ) + + def __setstate__(self, state): + """ + Play nice with pickle. + """ + self._setattrs(zip(self.__slots__, state)) + + def _setattrs(self, name_values_pairs): + bound_setattr = _obj_setattr.__get__(self, Attribute) + for name, value in name_values_pairs: + if name != "metadata": + bound_setattr(name, value) + else: + bound_setattr( + name, + types.MappingProxyType(dict(value)) + if value + else _empty_metadata_singleton, + ) + + +_a = [ + Attribute( + name=name, + default=NOTHING, + validator=None, + repr=True, + cmp=None, + eq=True, + order=False, + hash=(name != "metadata"), + init=True, + inherited=False, + ) + for name in Attribute.__slots__ +] + +Attribute = _add_hash( + _add_eq( + _add_repr(Attribute, attrs=_a), + attrs=[a for a in _a if a.name != "inherited"], + ), + attrs=[a for a in _a if a.hash and a.name != "inherited"], +) + + +class _CountingAttr: + """ + Intermediate representation of attributes that uses a counter to preserve + the order in which the attributes have been defined. + + *Internal* data structure of the attrs library. Running into is most + likely the result of a bug like a forgotten `@attr.s` decorator. + """ + + __slots__ = ( + "counter", + "_default", + "repr", + "eq", + "eq_key", + "order", + "order_key", + "hash", + "init", + "metadata", + "_validator", + "converter", + "type", + "kw_only", + "on_setattr", + ) + __attrs_attrs__ = tuple( + Attribute( + name=name, + default=NOTHING, + validator=None, + repr=True, + cmp=None, + hash=True, + init=True, + kw_only=False, + eq=True, + eq_key=None, + order=False, + order_key=None, + inherited=False, + on_setattr=None, + ) + for name in ( + "counter", + "_default", + "repr", + "eq", + "order", + "hash", + "init", + "on_setattr", + ) + ) + ( + Attribute( + name="metadata", + default=None, + validator=None, + repr=True, + cmp=None, + hash=False, + init=True, + kw_only=False, + eq=True, + eq_key=None, + order=False, + order_key=None, + inherited=False, + on_setattr=None, + ), + ) + cls_counter = 0 + + def __init__( + self, + default, + validator, + repr, + cmp, + hash, + init, + converter, + metadata, + type, + kw_only, + eq, + eq_key, + order, + order_key, + on_setattr, + ): + _CountingAttr.cls_counter += 1 + self.counter = _CountingAttr.cls_counter + self._default = default + self._validator = validator + self.converter = converter + self.repr = repr + self.eq = eq + self.eq_key = eq_key + self.order = order + self.order_key = order_key + self.hash = hash + self.init = init + self.metadata = metadata + self.type = type + self.kw_only = kw_only + self.on_setattr = on_setattr + + def validator(self, meth): + """ + Decorator that adds *meth* to the list of validators. + + Returns *meth* unchanged. + + .. versionadded:: 17.1.0 + """ + if self._validator is None: + self._validator = meth + else: + self._validator = and_(self._validator, meth) + return meth + + def default(self, meth): + """ + Decorator that allows to set the default for an attribute. + + Returns *meth* unchanged. + + :raises DefaultAlreadySetError: If default has been set before. + + .. versionadded:: 17.1.0 + """ + if self._default is not NOTHING: + raise DefaultAlreadySetError() + + self._default = Factory(meth, takes_self=True) + + return meth + + +_CountingAttr = _add_eq(_add_repr(_CountingAttr)) + + +class Factory: + """ + Stores a factory callable. + + If passed as the default value to `attrs.field`, the factory is used to + generate a new value. + + :param callable factory: A callable that takes either none or exactly one + mandatory positional argument depending on *takes_self*. + :param bool takes_self: Pass the partially initialized instance that is + being initialized as a positional argument. + + .. versionadded:: 17.1.0 *takes_self* + """ + + __slots__ = ("factory", "takes_self") + + def __init__(self, factory, takes_self=False): + """ + `Factory` is part of the default machinery so if we want a default + value here, we have to implement it ourselves. + """ + self.factory = factory + self.takes_self = takes_self + + def __getstate__(self): + """ + Play nice with pickle. + """ + return tuple(getattr(self, name) for name in self.__slots__) + + def __setstate__(self, state): + """ + Play nice with pickle. + """ + for name, value in zip(self.__slots__, state): + setattr(self, name, value) + + +_f = [ + Attribute( + name=name, + default=NOTHING, + validator=None, + repr=True, + cmp=None, + eq=True, + order=False, + hash=True, + init=True, + inherited=False, + ) + for name in Factory.__slots__ +] + +Factory = _add_hash(_add_eq(_add_repr(Factory, attrs=_f), attrs=_f), attrs=_f) + + +def make_class(name, attrs, bases=(object,), **attributes_arguments): + """ + A quick way to create a new class called *name* with *attrs*. + + :param str name: The name for the new class. + + :param attrs: A list of names or a dictionary of mappings of names to + attributes. + + If *attrs* is a list or an ordered dict (`dict` on Python 3.6+, + `collections.OrderedDict` otherwise), the order is deduced from + the order of the names or attributes inside *attrs*. Otherwise the + order of the definition of the attributes is used. + :type attrs: `list` or `dict` + + :param tuple bases: Classes that the new class will subclass. + + :param attributes_arguments: Passed unmodified to `attr.s`. + + :return: A new class with *attrs*. + :rtype: type + + .. versionadded:: 17.1.0 *bases* + .. versionchanged:: 18.1.0 If *attrs* is ordered, the order is retained. + """ + if isinstance(attrs, dict): + cls_dict = attrs + elif isinstance(attrs, (list, tuple)): + cls_dict = {a: attrib() for a in attrs} + else: + raise TypeError("attrs argument must be a dict or a list.") + + pre_init = cls_dict.pop("__attrs_pre_init__", None) + post_init = cls_dict.pop("__attrs_post_init__", None) + user_init = cls_dict.pop("__init__", None) + + body = {} + if pre_init is not None: + body["__attrs_pre_init__"] = pre_init + if post_init is not None: + body["__attrs_post_init__"] = post_init + if user_init is not None: + body["__init__"] = user_init + + type_ = types.new_class(name, bases, {}, lambda ns: ns.update(body)) + + # For pickling to work, the __module__ variable needs to be set to the + # frame where the class is created. Bypass this step in environments where + # sys._getframe is not defined (Jython for example) or sys._getframe is not + # defined for arguments greater than 0 (IronPython). + try: + type_.__module__ = sys._getframe(1).f_globals.get( + "__name__", "__main__" + ) + except (AttributeError, ValueError): + pass + + # We do it here for proper warnings with meaningful stacklevel. + cmp = attributes_arguments.pop("cmp", None) + ( + attributes_arguments["eq"], + attributes_arguments["order"], + ) = _determine_attrs_eq_order( + cmp, + attributes_arguments.get("eq"), + attributes_arguments.get("order"), + True, + ) + + return _attrs(these=cls_dict, **attributes_arguments)(type_) + + +# These are required by within this module so we define them here and merely +# import into .validators / .converters. + + +@attrs(slots=True, hash=True) +class _AndValidator: + """ + Compose many validators to a single one. + """ + + _validators = attrib() + + def __call__(self, inst, attr, value): + for v in self._validators: + v(inst, attr, value) + + +def and_(*validators): + """ + A validator that composes multiple validators into one. + + When called on a value, it runs all wrapped validators. + + :param callables validators: Arbitrary number of validators. + + .. versionadded:: 17.1.0 + """ + vals = [] + for validator in validators: + vals.extend( + validator._validators + if isinstance(validator, _AndValidator) + else [validator] + ) + + return _AndValidator(tuple(vals)) + + +def pipe(*converters): + """ + A converter that composes multiple converters into one. + + When called on a value, it runs all wrapped converters, returning the + *last* value. + + Type annotations will be inferred from the wrapped converters', if + they have any. + + :param callables converters: Arbitrary number of converters. + + .. versionadded:: 20.1.0 + """ + + def pipe_converter(val): + for converter in converters: + val = converter(val) + + return val + + if not converters: + # If the converter list is empty, pipe_converter is the identity. + A = typing.TypeVar("A") + pipe_converter.__annotations__ = {"val": A, "return": A} + else: + # Get parameter type from first converter. + t = _AnnotationExtractor(converters[0]).get_first_param_type() + if t: + pipe_converter.__annotations__["val"] = t + + # Get return type from last converter. + rt = _AnnotationExtractor(converters[-1]).get_return_type() + if rt: + pipe_converter.__annotations__["return"] = rt + + return pipe_converter diff --git a/utils/python-venv/Lib/site-packages/attr/_next_gen.py b/utils/python-venv/Lib/site-packages/attr/_next_gen.py new file mode 100644 index 0000000..5a06a74 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/_next_gen.py @@ -0,0 +1,220 @@ +# SPDX-License-Identifier: MIT + +""" +These are Python 3.6+-only and keyword-only APIs that call `attr.s` and +`attr.ib` with different default values. +""" + + +from functools import partial + +from . import setters +from ._funcs import asdict as _asdict +from ._funcs import astuple as _astuple +from ._make import ( + NOTHING, + _frozen_setattrs, + _ng_default_on_setattr, + attrib, + attrs, +) +from .exceptions import UnannotatedAttributeError + + +def define( + maybe_cls=None, + *, + these=None, + repr=None, + hash=None, + init=None, + slots=True, + frozen=False, + weakref_slot=True, + str=False, + auto_attribs=None, + kw_only=False, + cache_hash=False, + auto_exc=True, + eq=None, + order=False, + auto_detect=True, + getstate_setstate=None, + on_setattr=None, + field_transformer=None, + match_args=True, +): + r""" + Define an ``attrs`` class. + + Differences to the classic `attr.s` that it uses underneath: + + - Automatically detect whether or not *auto_attribs* should be `True` (c.f. + *auto_attribs* parameter). + - If *frozen* is `False`, run converters and validators when setting an + attribute by default. + - *slots=True* + + .. caution:: + + Usually this has only upsides and few visible effects in everyday + programming. But it *can* lead to some suprising behaviors, so please + make sure to read :term:`slotted classes`. + - *auto_exc=True* + - *auto_detect=True* + - *order=False* + - Some options that were only relevant on Python 2 or were kept around for + backwards-compatibility have been removed. + + Please note that these are all defaults and you can change them as you + wish. + + :param Optional[bool] auto_attribs: If set to `True` or `False`, it behaves + exactly like `attr.s`. If left `None`, `attr.s` will try to guess: + + 1. If any attributes are annotated and no unannotated `attrs.fields`\ s + are found, it assumes *auto_attribs=True*. + 2. Otherwise it assumes *auto_attribs=False* and tries to collect + `attrs.fields`\ s. + + For now, please refer to `attr.s` for the rest of the parameters. + + .. versionadded:: 20.1.0 + .. versionchanged:: 21.3.0 Converters are also run ``on_setattr``. + """ + + def do_it(cls, auto_attribs): + return attrs( + maybe_cls=cls, + these=these, + repr=repr, + hash=hash, + init=init, + slots=slots, + frozen=frozen, + weakref_slot=weakref_slot, + str=str, + auto_attribs=auto_attribs, + kw_only=kw_only, + cache_hash=cache_hash, + auto_exc=auto_exc, + eq=eq, + order=order, + auto_detect=auto_detect, + collect_by_mro=True, + getstate_setstate=getstate_setstate, + on_setattr=on_setattr, + field_transformer=field_transformer, + match_args=match_args, + ) + + def wrap(cls): + """ + Making this a wrapper ensures this code runs during class creation. + + We also ensure that frozen-ness of classes is inherited. + """ + nonlocal frozen, on_setattr + + had_on_setattr = on_setattr not in (None, setters.NO_OP) + + # By default, mutable classes convert & validate on setattr. + if frozen is False and on_setattr is None: + on_setattr = _ng_default_on_setattr + + # However, if we subclass a frozen class, we inherit the immutability + # and disable on_setattr. + for base_cls in cls.__bases__: + if base_cls.__setattr__ is _frozen_setattrs: + if had_on_setattr: + raise ValueError( + "Frozen classes can't use on_setattr " + "(frozen-ness was inherited)." + ) + + on_setattr = setters.NO_OP + break + + if auto_attribs is not None: + return do_it(cls, auto_attribs) + + try: + return do_it(cls, True) + except UnannotatedAttributeError: + return do_it(cls, False) + + # maybe_cls's type depends on the usage of the decorator. It's a class + # if it's used as `@attrs` but ``None`` if used as `@attrs()`. + if maybe_cls is None: + return wrap + else: + return wrap(maybe_cls) + + +mutable = define +frozen = partial(define, frozen=True, on_setattr=None) + + +def field( + *, + default=NOTHING, + validator=None, + repr=True, + hash=None, + init=True, + metadata=None, + converter=None, + factory=None, + kw_only=False, + eq=None, + order=None, + on_setattr=None, +): + """ + Identical to `attr.ib`, except keyword-only and with some arguments + removed. + + .. versionadded:: 20.1.0 + """ + return attrib( + default=default, + validator=validator, + repr=repr, + hash=hash, + init=init, + metadata=metadata, + converter=converter, + factory=factory, + kw_only=kw_only, + eq=eq, + order=order, + on_setattr=on_setattr, + ) + + +def asdict(inst, *, recurse=True, filter=None, value_serializer=None): + """ + Same as `attr.asdict`, except that collections types are always retained + and dict is always used as *dict_factory*. + + .. versionadded:: 21.3.0 + """ + return _asdict( + inst=inst, + recurse=recurse, + filter=filter, + value_serializer=value_serializer, + retain_collection_types=True, + ) + + +def astuple(inst, *, recurse=True, filter=None): + """ + Same as `attr.astuple`, except that collections types are always retained + and `tuple` is always used as the *tuple_factory*. + + .. versionadded:: 21.3.0 + """ + return _astuple( + inst=inst, recurse=recurse, filter=filter, retain_collection_types=True + ) diff --git a/utils/python-venv/Lib/site-packages/attr/_version_info.py b/utils/python-venv/Lib/site-packages/attr/_version_info.py new file mode 100644 index 0000000..51a1312 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/_version_info.py @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: MIT + + +from functools import total_ordering + +from ._funcs import astuple +from ._make import attrib, attrs + + +@total_ordering +@attrs(eq=False, order=False, slots=True, frozen=True) +class VersionInfo: + """ + A version object that can be compared to tuple of length 1--4: + + >>> attr.VersionInfo(19, 1, 0, "final") <= (19, 2) + True + >>> attr.VersionInfo(19, 1, 0, "final") < (19, 1, 1) + True + >>> vi = attr.VersionInfo(19, 2, 0, "final") + >>> vi < (19, 1, 1) + False + >>> vi < (19,) + False + >>> vi == (19, 2,) + True + >>> vi == (19, 2, 1) + False + + .. versionadded:: 19.2 + """ + + year = attrib(type=int) + minor = attrib(type=int) + micro = attrib(type=int) + releaselevel = attrib(type=str) + + @classmethod + def _from_version_string(cls, s): + """ + Parse *s* and return a _VersionInfo. + """ + v = s.split(".") + if len(v) == 3: + v.append("final") + + return cls( + year=int(v[0]), minor=int(v[1]), micro=int(v[2]), releaselevel=v[3] + ) + + def _ensure_tuple(self, other): + """ + Ensure *other* is a tuple of a valid length. + + Returns a possibly transformed *other* and ourselves as a tuple of + the same length as *other*. + """ + + if self.__class__ is other.__class__: + other = astuple(other) + + if not isinstance(other, tuple): + raise NotImplementedError + + if not (1 <= len(other) <= 4): + raise NotImplementedError + + return astuple(self)[: len(other)], other + + def __eq__(self, other): + try: + us, them = self._ensure_tuple(other) + except NotImplementedError: + return NotImplemented + + return us == them + + def __lt__(self, other): + try: + us, them = self._ensure_tuple(other) + except NotImplementedError: + return NotImplemented + + # Since alphabetically "dev0" < "final" < "post1" < "post2", we don't + # have to do anything special with releaselevel for now. + return us < them diff --git a/utils/python-venv/Lib/site-packages/attr/_version_info.pyi b/utils/python-venv/Lib/site-packages/attr/_version_info.pyi new file mode 100644 index 0000000..45ced08 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/_version_info.pyi @@ -0,0 +1,9 @@ +class VersionInfo: + @property + def year(self) -> int: ... + @property + def minor(self) -> int: ... + @property + def micro(self) -> int: ... + @property + def releaselevel(self) -> str: ... diff --git a/utils/python-venv/Lib/site-packages/attr/converters.py b/utils/python-venv/Lib/site-packages/attr/converters.py new file mode 100644 index 0000000..a73626c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/converters.py @@ -0,0 +1,144 @@ +# SPDX-License-Identifier: MIT + +""" +Commonly useful converters. +""" + + +import typing + +from ._compat import _AnnotationExtractor +from ._make import NOTHING, Factory, pipe + + +__all__ = [ + "default_if_none", + "optional", + "pipe", + "to_bool", +] + + +def optional(converter): + """ + A converter that allows an attribute to be optional. An optional attribute + is one which can be set to ``None``. + + Type annotations will be inferred from the wrapped converter's, if it + has any. + + :param callable converter: the converter that is used for non-``None`` + values. + + .. versionadded:: 17.1.0 + """ + + def optional_converter(val): + if val is None: + return None + return converter(val) + + xtr = _AnnotationExtractor(converter) + + t = xtr.get_first_param_type() + if t: + optional_converter.__annotations__["val"] = typing.Optional[t] + + rt = xtr.get_return_type() + if rt: + optional_converter.__annotations__["return"] = typing.Optional[rt] + + return optional_converter + + +def default_if_none(default=NOTHING, factory=None): + """ + A converter that allows to replace ``None`` values by *default* or the + result of *factory*. + + :param default: Value to be used if ``None`` is passed. Passing an instance + of `attrs.Factory` is supported, however the ``takes_self`` option + is *not*. + :param callable factory: A callable that takes no parameters whose result + is used if ``None`` is passed. + + :raises TypeError: If **neither** *default* or *factory* is passed. + :raises TypeError: If **both** *default* and *factory* are passed. + :raises ValueError: If an instance of `attrs.Factory` is passed with + ``takes_self=True``. + + .. versionadded:: 18.2.0 + """ + if default is NOTHING and factory is None: + raise TypeError("Must pass either `default` or `factory`.") + + if default is not NOTHING and factory is not None: + raise TypeError( + "Must pass either `default` or `factory` but not both." + ) + + if factory is not None: + default = Factory(factory) + + if isinstance(default, Factory): + if default.takes_self: + raise ValueError( + "`takes_self` is not supported by default_if_none." + ) + + def default_if_none_converter(val): + if val is not None: + return val + + return default.factory() + + else: + + def default_if_none_converter(val): + if val is not None: + return val + + return default + + return default_if_none_converter + + +def to_bool(val): + """ + Convert "boolean" strings (e.g., from env. vars.) to real booleans. + + Values mapping to :code:`True`: + + - :code:`True` + - :code:`"true"` / :code:`"t"` + - :code:`"yes"` / :code:`"y"` + - :code:`"on"` + - :code:`"1"` + - :code:`1` + + Values mapping to :code:`False`: + + - :code:`False` + - :code:`"false"` / :code:`"f"` + - :code:`"no"` / :code:`"n"` + - :code:`"off"` + - :code:`"0"` + - :code:`0` + + :raises ValueError: for any other value. + + .. versionadded:: 21.3.0 + """ + if isinstance(val, str): + val = val.lower() + truthy = {True, "true", "t", "yes", "y", "on", "1", 1} + falsy = {False, "false", "f", "no", "n", "off", "0", 0} + try: + if val in truthy: + return True + if val in falsy: + return False + except TypeError: + # Raised when "val" is not hashable (e.g., lists) + pass + raise ValueError("Cannot convert value to bool: {}".format(val)) diff --git a/utils/python-venv/Lib/site-packages/attr/converters.pyi b/utils/python-venv/Lib/site-packages/attr/converters.pyi new file mode 100644 index 0000000..0f58088 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/converters.pyi @@ -0,0 +1,13 @@ +from typing import Callable, Optional, TypeVar, overload + +from . import _ConverterType + +_T = TypeVar("_T") + +def pipe(*validators: _ConverterType) -> _ConverterType: ... +def optional(converter: _ConverterType) -> _ConverterType: ... +@overload +def default_if_none(default: _T) -> _ConverterType: ... +@overload +def default_if_none(*, factory: Callable[[], _T]) -> _ConverterType: ... +def to_bool(val: str) -> bool: ... diff --git a/utils/python-venv/Lib/site-packages/attr/exceptions.py b/utils/python-venv/Lib/site-packages/attr/exceptions.py new file mode 100644 index 0000000..5dc51e0 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/exceptions.py @@ -0,0 +1,92 @@ +# SPDX-License-Identifier: MIT + + +class FrozenError(AttributeError): + """ + A frozen/immutable instance or attribute have been attempted to be + modified. + + It mirrors the behavior of ``namedtuples`` by using the same error message + and subclassing `AttributeError`. + + .. versionadded:: 20.1.0 + """ + + msg = "can't set attribute" + args = [msg] + + +class FrozenInstanceError(FrozenError): + """ + A frozen instance has been attempted to be modified. + + .. versionadded:: 16.1.0 + """ + + +class FrozenAttributeError(FrozenError): + """ + A frozen attribute has been attempted to be modified. + + .. versionadded:: 20.1.0 + """ + + +class AttrsAttributeNotFoundError(ValueError): + """ + An ``attrs`` function couldn't find an attribute that the user asked for. + + .. versionadded:: 16.2.0 + """ + + +class NotAnAttrsClassError(ValueError): + """ + A non-``attrs`` class has been passed into an ``attrs`` function. + + .. versionadded:: 16.2.0 + """ + + +class DefaultAlreadySetError(RuntimeError): + """ + A default has been set using ``attr.ib()`` and is attempted to be reset + using the decorator. + + .. versionadded:: 17.1.0 + """ + + +class UnannotatedAttributeError(RuntimeError): + """ + A class with ``auto_attribs=True`` has an ``attr.ib()`` without a type + annotation. + + .. versionadded:: 17.3.0 + """ + + +class PythonTooOldError(RuntimeError): + """ + It was attempted to use an ``attrs`` feature that requires a newer Python + version. + + .. versionadded:: 18.2.0 + """ + + +class NotCallableError(TypeError): + """ + A ``attr.ib()`` requiring a callable has been set with a value + that is not callable. + + .. versionadded:: 19.2.0 + """ + + def __init__(self, msg, value): + super(TypeError, self).__init__(msg, value) + self.msg = msg + self.value = value + + def __str__(self): + return str(self.msg) diff --git a/utils/python-venv/Lib/site-packages/attr/exceptions.pyi b/utils/python-venv/Lib/site-packages/attr/exceptions.pyi new file mode 100644 index 0000000..f268011 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/exceptions.pyi @@ -0,0 +1,17 @@ +from typing import Any + +class FrozenError(AttributeError): + msg: str = ... + +class FrozenInstanceError(FrozenError): ... +class FrozenAttributeError(FrozenError): ... +class AttrsAttributeNotFoundError(ValueError): ... +class NotAnAttrsClassError(ValueError): ... +class DefaultAlreadySetError(RuntimeError): ... +class UnannotatedAttributeError(RuntimeError): ... +class PythonTooOldError(RuntimeError): ... + +class NotCallableError(TypeError): + msg: str = ... + value: Any = ... + def __init__(self, msg: str, value: Any) -> None: ... diff --git a/utils/python-venv/Lib/site-packages/attr/filters.py b/utils/python-venv/Lib/site-packages/attr/filters.py new file mode 100644 index 0000000..baa25e9 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/filters.py @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: MIT + +""" +Commonly useful filters for `attr.asdict`. +""" + +from ._make import Attribute + + +def _split_what(what): + """ + Returns a tuple of `frozenset`s of classes and attributes. + """ + return ( + frozenset(cls for cls in what if isinstance(cls, type)), + frozenset(cls for cls in what if isinstance(cls, Attribute)), + ) + + +def include(*what): + """ + Include *what*. + + :param what: What to include. + :type what: `list` of `type` or `attrs.Attribute`\\ s + + :rtype: `callable` + """ + cls, attrs = _split_what(what) + + def include_(attribute, value): + return value.__class__ in cls or attribute in attrs + + return include_ + + +def exclude(*what): + """ + Exclude *what*. + + :param what: What to exclude. + :type what: `list` of classes or `attrs.Attribute`\\ s. + + :rtype: `callable` + """ + cls, attrs = _split_what(what) + + def exclude_(attribute, value): + return value.__class__ not in cls and attribute not in attrs + + return exclude_ diff --git a/utils/python-venv/Lib/site-packages/attr/filters.pyi b/utils/python-venv/Lib/site-packages/attr/filters.pyi new file mode 100644 index 0000000..9938668 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/filters.pyi @@ -0,0 +1,6 @@ +from typing import Any, Union + +from . import Attribute, _FilterType + +def include(*what: Union[type, Attribute[Any]]) -> _FilterType[Any]: ... +def exclude(*what: Union[type, Attribute[Any]]) -> _FilterType[Any]: ... diff --git a/utils/python-venv/Lib/site-packages/attr/py.typed b/utils/python-venv/Lib/site-packages/attr/py.typed new file mode 100644 index 0000000..e69de29 diff --git a/utils/python-venv/Lib/site-packages/attr/setters.py b/utils/python-venv/Lib/site-packages/attr/setters.py new file mode 100644 index 0000000..12ed675 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/setters.py @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: MIT + +""" +Commonly used hooks for on_setattr. +""" + + +from . import _config +from .exceptions import FrozenAttributeError + + +def pipe(*setters): + """ + Run all *setters* and return the return value of the last one. + + .. versionadded:: 20.1.0 + """ + + def wrapped_pipe(instance, attrib, new_value): + rv = new_value + + for setter in setters: + rv = setter(instance, attrib, rv) + + return rv + + return wrapped_pipe + + +def frozen(_, __, ___): + """ + Prevent an attribute to be modified. + + .. versionadded:: 20.1.0 + """ + raise FrozenAttributeError() + + +def validate(instance, attrib, new_value): + """ + Run *attrib*'s validator on *new_value* if it has one. + + .. versionadded:: 20.1.0 + """ + if _config._run_validators is False: + return new_value + + v = attrib.validator + if not v: + return new_value + + v(instance, attrib, new_value) + + return new_value + + +def convert(instance, attrib, new_value): + """ + Run *attrib*'s converter -- if it has one -- on *new_value* and return the + result. + + .. versionadded:: 20.1.0 + """ + c = attrib.converter + if c: + return c(new_value) + + return new_value + + +# Sentinel for disabling class-wide *on_setattr* hooks for certain attributes. +# autodata stopped working, so the docstring is inlined in the API docs. +NO_OP = object() diff --git a/utils/python-venv/Lib/site-packages/attr/setters.pyi b/utils/python-venv/Lib/site-packages/attr/setters.pyi new file mode 100644 index 0000000..3f5603c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/setters.pyi @@ -0,0 +1,19 @@ +from typing import Any, NewType, NoReturn, TypeVar, cast + +from . import Attribute, _OnSetAttrType + +_T = TypeVar("_T") + +def frozen( + instance: Any, attribute: Attribute[Any], new_value: Any +) -> NoReturn: ... +def pipe(*setters: _OnSetAttrType) -> _OnSetAttrType: ... +def validate(instance: Any, attribute: Attribute[_T], new_value: _T) -> _T: ... + +# convert is allowed to return Any, because they can be chained using pipe. +def convert( + instance: Any, attribute: Attribute[Any], new_value: Any +) -> Any: ... + +_NoOpType = NewType("_NoOpType", object) +NO_OP: _NoOpType diff --git a/utils/python-venv/Lib/site-packages/attr/validators.py b/utils/python-venv/Lib/site-packages/attr/validators.py new file mode 100644 index 0000000..eece517 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/validators.py @@ -0,0 +1,594 @@ +# SPDX-License-Identifier: MIT + +""" +Commonly useful validators. +""" + + +import operator +import re + +from contextlib import contextmanager + +from ._config import get_run_validators, set_run_validators +from ._make import _AndValidator, and_, attrib, attrs +from .exceptions import NotCallableError + + +try: + Pattern = re.Pattern +except AttributeError: # Python <3.7 lacks a Pattern type. + Pattern = type(re.compile("")) + + +__all__ = [ + "and_", + "deep_iterable", + "deep_mapping", + "disabled", + "ge", + "get_disabled", + "gt", + "in_", + "instance_of", + "is_callable", + "le", + "lt", + "matches_re", + "max_len", + "min_len", + "optional", + "provides", + "set_disabled", +] + + +def set_disabled(disabled): + """ + Globally disable or enable running validators. + + By default, they are run. + + :param disabled: If ``True``, disable running all validators. + :type disabled: bool + + .. warning:: + + This function is not thread-safe! + + .. versionadded:: 21.3.0 + """ + set_run_validators(not disabled) + + +def get_disabled(): + """ + Return a bool indicating whether validators are currently disabled or not. + + :return: ``True`` if validators are currently disabled. + :rtype: bool + + .. versionadded:: 21.3.0 + """ + return not get_run_validators() + + +@contextmanager +def disabled(): + """ + Context manager that disables running validators within its context. + + .. warning:: + + This context manager is not thread-safe! + + .. versionadded:: 21.3.0 + """ + set_run_validators(False) + try: + yield + finally: + set_run_validators(True) + + +@attrs(repr=False, slots=True, hash=True) +class _InstanceOfValidator: + type = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not isinstance(value, self.type): + raise TypeError( + "'{name}' must be {type!r} (got {value!r} that is a " + "{actual!r}).".format( + name=attr.name, + type=self.type, + actual=value.__class__, + value=value, + ), + attr, + self.type, + value, + ) + + def __repr__(self): + return "".format( + type=self.type + ) + + +def instance_of(type): + """ + A validator that raises a `TypeError` if the initializer is called + with a wrong type for this particular attribute (checks are performed using + `isinstance` therefore it's also valid to pass a tuple of types). + + :param type: The type to check for. + :type type: type or tuple of types + + :raises TypeError: With a human readable error message, the attribute + (of type `attrs.Attribute`), the expected type, and the value it + got. + """ + return _InstanceOfValidator(type) + + +@attrs(repr=False, frozen=True, slots=True) +class _MatchesReValidator: + pattern = attrib() + match_func = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not self.match_func(value): + raise ValueError( + "'{name}' must match regex {pattern!r}" + " ({value!r} doesn't)".format( + name=attr.name, pattern=self.pattern.pattern, value=value + ), + attr, + self.pattern, + value, + ) + + def __repr__(self): + return "".format( + pattern=self.pattern + ) + + +def matches_re(regex, flags=0, func=None): + r""" + A validator that raises `ValueError` if the initializer is called + with a string that doesn't match *regex*. + + :param regex: a regex string or precompiled pattern to match against + :param int flags: flags that will be passed to the underlying re function + (default 0) + :param callable func: which underlying `re` function to call. Valid options + are `re.fullmatch`, `re.search`, and `re.match`; the default ``None`` + means `re.fullmatch`. For performance reasons, the pattern is always + precompiled using `re.compile`. + + .. versionadded:: 19.2.0 + .. versionchanged:: 21.3.0 *regex* can be a pre-compiled pattern. + """ + valid_funcs = (re.fullmatch, None, re.search, re.match) + if func not in valid_funcs: + raise ValueError( + "'func' must be one of {}.".format( + ", ".join( + sorted( + e and e.__name__ or "None" for e in set(valid_funcs) + ) + ) + ) + ) + + if isinstance(regex, Pattern): + if flags: + raise TypeError( + "'flags' can only be used with a string pattern; " + "pass flags to re.compile() instead" + ) + pattern = regex + else: + pattern = re.compile(regex, flags) + + if func is re.match: + match_func = pattern.match + elif func is re.search: + match_func = pattern.search + else: + match_func = pattern.fullmatch + + return _MatchesReValidator(pattern, match_func) + + +@attrs(repr=False, slots=True, hash=True) +class _ProvidesValidator: + interface = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not self.interface.providedBy(value): + raise TypeError( + "'{name}' must provide {interface!r} which {value!r} " + "doesn't.".format( + name=attr.name, interface=self.interface, value=value + ), + attr, + self.interface, + value, + ) + + def __repr__(self): + return "".format( + interface=self.interface + ) + + +def provides(interface): + """ + A validator that raises a `TypeError` if the initializer is called + with an object that does not provide the requested *interface* (checks are + performed using ``interface.providedBy(value)`` (see `zope.interface + `_). + + :param interface: The interface to check for. + :type interface: ``zope.interface.Interface`` + + :raises TypeError: With a human readable error message, the attribute + (of type `attrs.Attribute`), the expected interface, and the + value it got. + """ + return _ProvidesValidator(interface) + + +@attrs(repr=False, slots=True, hash=True) +class _OptionalValidator: + validator = attrib() + + def __call__(self, inst, attr, value): + if value is None: + return + + self.validator(inst, attr, value) + + def __repr__(self): + return "".format( + what=repr(self.validator) + ) + + +def optional(validator): + """ + A validator that makes an attribute optional. An optional attribute is one + which can be set to ``None`` in addition to satisfying the requirements of + the sub-validator. + + :param validator: A validator (or a list of validators) that is used for + non-``None`` values. + :type validator: callable or `list` of callables. + + .. versionadded:: 15.1.0 + .. versionchanged:: 17.1.0 *validator* can be a list of validators. + """ + if isinstance(validator, list): + return _OptionalValidator(_AndValidator(validator)) + return _OptionalValidator(validator) + + +@attrs(repr=False, slots=True, hash=True) +class _InValidator: + options = attrib() + + def __call__(self, inst, attr, value): + try: + in_options = value in self.options + except TypeError: # e.g. `1 in "abc"` + in_options = False + + if not in_options: + raise ValueError( + "'{name}' must be in {options!r} (got {value!r})".format( + name=attr.name, options=self.options, value=value + ), + attr, + self.options, + value, + ) + + def __repr__(self): + return "".format( + options=self.options + ) + + +def in_(options): + """ + A validator that raises a `ValueError` if the initializer is called + with a value that does not belong in the options provided. The check is + performed using ``value in options``. + + :param options: Allowed options. + :type options: list, tuple, `enum.Enum`, ... + + :raises ValueError: With a human readable error message, the attribute (of + type `attrs.Attribute`), the expected options, and the value it + got. + + .. versionadded:: 17.1.0 + .. versionchanged:: 22.1.0 + The ValueError was incomplete until now and only contained the human + readable error message. Now it contains all the information that has + been promised since 17.1.0. + """ + return _InValidator(options) + + +@attrs(repr=False, slots=False, hash=True) +class _IsCallableValidator: + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not callable(value): + message = ( + "'{name}' must be callable " + "(got {value!r} that is a {actual!r})." + ) + raise NotCallableError( + msg=message.format( + name=attr.name, value=value, actual=value.__class__ + ), + value=value, + ) + + def __repr__(self): + return "" + + +def is_callable(): + """ + A validator that raises a `attr.exceptions.NotCallableError` if the + initializer is called with a value for this particular attribute + that is not callable. + + .. versionadded:: 19.1.0 + + :raises `attr.exceptions.NotCallableError`: With a human readable error + message containing the attribute (`attrs.Attribute`) name, + and the value it got. + """ + return _IsCallableValidator() + + +@attrs(repr=False, slots=True, hash=True) +class _DeepIterable: + member_validator = attrib(validator=is_callable()) + iterable_validator = attrib( + default=None, validator=optional(is_callable()) + ) + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if self.iterable_validator is not None: + self.iterable_validator(inst, attr, value) + + for member in value: + self.member_validator(inst, attr, member) + + def __repr__(self): + iterable_identifier = ( + "" + if self.iterable_validator is None + else " {iterable!r}".format(iterable=self.iterable_validator) + ) + return ( + "" + ).format( + iterable_identifier=iterable_identifier, + member=self.member_validator, + ) + + +def deep_iterable(member_validator, iterable_validator=None): + """ + A validator that performs deep validation of an iterable. + + :param member_validator: Validator(s) to apply to iterable members + :param iterable_validator: Validator to apply to iterable itself + (optional) + + .. versionadded:: 19.1.0 + + :raises TypeError: if any sub-validators fail + """ + if isinstance(member_validator, (list, tuple)): + member_validator = and_(*member_validator) + return _DeepIterable(member_validator, iterable_validator) + + +@attrs(repr=False, slots=True, hash=True) +class _DeepMapping: + key_validator = attrib(validator=is_callable()) + value_validator = attrib(validator=is_callable()) + mapping_validator = attrib(default=None, validator=optional(is_callable())) + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if self.mapping_validator is not None: + self.mapping_validator(inst, attr, value) + + for key in value: + self.key_validator(inst, attr, key) + self.value_validator(inst, attr, value[key]) + + def __repr__(self): + return ( + "" + ).format(key=self.key_validator, value=self.value_validator) + + +def deep_mapping(key_validator, value_validator, mapping_validator=None): + """ + A validator that performs deep validation of a dictionary. + + :param key_validator: Validator to apply to dictionary keys + :param value_validator: Validator to apply to dictionary values + :param mapping_validator: Validator to apply to top-level mapping + attribute (optional) + + .. versionadded:: 19.1.0 + + :raises TypeError: if any sub-validators fail + """ + return _DeepMapping(key_validator, value_validator, mapping_validator) + + +@attrs(repr=False, frozen=True, slots=True) +class _NumberValidator: + bound = attrib() + compare_op = attrib() + compare_func = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if not self.compare_func(value, self.bound): + raise ValueError( + "'{name}' must be {op} {bound}: {value}".format( + name=attr.name, + op=self.compare_op, + bound=self.bound, + value=value, + ) + ) + + def __repr__(self): + return "".format( + op=self.compare_op, bound=self.bound + ) + + +def lt(val): + """ + A validator that raises `ValueError` if the initializer is called + with a number larger or equal to *val*. + + :param val: Exclusive upper bound for values + + .. versionadded:: 21.3.0 + """ + return _NumberValidator(val, "<", operator.lt) + + +def le(val): + """ + A validator that raises `ValueError` if the initializer is called + with a number greater than *val*. + + :param val: Inclusive upper bound for values + + .. versionadded:: 21.3.0 + """ + return _NumberValidator(val, "<=", operator.le) + + +def ge(val): + """ + A validator that raises `ValueError` if the initializer is called + with a number smaller than *val*. + + :param val: Inclusive lower bound for values + + .. versionadded:: 21.3.0 + """ + return _NumberValidator(val, ">=", operator.ge) + + +def gt(val): + """ + A validator that raises `ValueError` if the initializer is called + with a number smaller or equal to *val*. + + :param val: Exclusive lower bound for values + + .. versionadded:: 21.3.0 + """ + return _NumberValidator(val, ">", operator.gt) + + +@attrs(repr=False, frozen=True, slots=True) +class _MaxLengthValidator: + max_length = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if len(value) > self.max_length: + raise ValueError( + "Length of '{name}' must be <= {max}: {len}".format( + name=attr.name, max=self.max_length, len=len(value) + ) + ) + + def __repr__(self): + return "".format(max=self.max_length) + + +def max_len(length): + """ + A validator that raises `ValueError` if the initializer is called + with a string or iterable that is longer than *length*. + + :param int length: Maximum length of the string or iterable + + .. versionadded:: 21.3.0 + """ + return _MaxLengthValidator(length) + + +@attrs(repr=False, frozen=True, slots=True) +class _MinLengthValidator: + min_length = attrib() + + def __call__(self, inst, attr, value): + """ + We use a callable class to be able to change the ``__repr__``. + """ + if len(value) < self.min_length: + raise ValueError( + "Length of '{name}' must be => {min}: {len}".format( + name=attr.name, min=self.min_length, len=len(value) + ) + ) + + def __repr__(self): + return "".format(min=self.min_length) + + +def min_len(length): + """ + A validator that raises `ValueError` if the initializer is called + with a string or iterable that is shorter than *length*. + + :param int length: Minimum length of the string or iterable + + .. versionadded:: 22.1.0 + """ + return _MinLengthValidator(length) diff --git a/utils/python-venv/Lib/site-packages/attr/validators.pyi b/utils/python-venv/Lib/site-packages/attr/validators.pyi new file mode 100644 index 0000000..54b9dba --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attr/validators.pyi @@ -0,0 +1,80 @@ +from typing import ( + Any, + AnyStr, + Callable, + Container, + ContextManager, + Iterable, + List, + Mapping, + Match, + Optional, + Pattern, + Tuple, + Type, + TypeVar, + Union, + overload, +) + +from . import _ValidatorType +from . import _ValidatorArgType + +_T = TypeVar("_T") +_T1 = TypeVar("_T1") +_T2 = TypeVar("_T2") +_T3 = TypeVar("_T3") +_I = TypeVar("_I", bound=Iterable) +_K = TypeVar("_K") +_V = TypeVar("_V") +_M = TypeVar("_M", bound=Mapping) + +def set_disabled(run: bool) -> None: ... +def get_disabled() -> bool: ... +def disabled() -> ContextManager[None]: ... + +# To be more precise on instance_of use some overloads. +# If there are more than 3 items in the tuple then we fall back to Any +@overload +def instance_of(type: Type[_T]) -> _ValidatorType[_T]: ... +@overload +def instance_of(type: Tuple[Type[_T]]) -> _ValidatorType[_T]: ... +@overload +def instance_of( + type: Tuple[Type[_T1], Type[_T2]] +) -> _ValidatorType[Union[_T1, _T2]]: ... +@overload +def instance_of( + type: Tuple[Type[_T1], Type[_T2], Type[_T3]] +) -> _ValidatorType[Union[_T1, _T2, _T3]]: ... +@overload +def instance_of(type: Tuple[type, ...]) -> _ValidatorType[Any]: ... +def provides(interface: Any) -> _ValidatorType[Any]: ... +def optional( + validator: Union[_ValidatorType[_T], List[_ValidatorType[_T]]] +) -> _ValidatorType[Optional[_T]]: ... +def in_(options: Container[_T]) -> _ValidatorType[_T]: ... +def and_(*validators: _ValidatorType[_T]) -> _ValidatorType[_T]: ... +def matches_re( + regex: Union[Pattern[AnyStr], AnyStr], + flags: int = ..., + func: Optional[ + Callable[[AnyStr, AnyStr, int], Optional[Match[AnyStr]]] + ] = ..., +) -> _ValidatorType[AnyStr]: ... +def deep_iterable( + member_validator: _ValidatorArgType[_T], + iterable_validator: Optional[_ValidatorType[_I]] = ..., +) -> _ValidatorType[_I]: ... +def deep_mapping( + key_validator: _ValidatorType[_K], + value_validator: _ValidatorType[_V], + mapping_validator: Optional[_ValidatorType[_M]] = ..., +) -> _ValidatorType[_M]: ... +def is_callable() -> _ValidatorType[_T]: ... +def lt(val: _T) -> _ValidatorType[_T]: ... +def le(val: _T) -> _ValidatorType[_T]: ... +def ge(val: _T) -> _ValidatorType[_T]: ... +def gt(val: _T) -> _ValidatorType[_T]: ... +def max_len(length: int) -> _ValidatorType[_T]: ... +def min_len(length: int) -> _ValidatorType[_T]: ... diff --git a/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/AUTHORS.rst b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/AUTHORS.rst new file mode 100644 index 0000000..aa677e8 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/AUTHORS.rst @@ -0,0 +1,11 @@ +Credits +======= + +``attrs`` is written and maintained by `Hynek Schlawack `_. + +The development is kindly supported by `Variomedia AG `_. + +A full list of contributors can be found in `GitHub's overview `_. + +It’s the spiritual successor of `characteristic `_ and aspires to fix some of it clunkiness and unfortunate decisions. +Both were inspired by Twisted’s `FancyEqMixin `_ but both are implemented using class decorators because `subclassing is bad for you `_, m’kay? diff --git a/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/INSTALLER b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/INSTALLER new file mode 100644 index 0000000..a1b589e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/LICENSE b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/LICENSE new file mode 100644 index 0000000..2bd6453 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2015 Hynek Schlawack and the attrs contributors + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/METADATA b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/METADATA new file mode 100644 index 0000000..60b6653 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/METADATA @@ -0,0 +1,240 @@ +Metadata-Version: 2.1 +Name: attrs +Version: 22.1.0 +Summary: Classes Without Boilerplate +Home-page: https://www.attrs.org/ +Author: Hynek Schlawack +Author-email: hs@ox.cx +Maintainer: Hynek Schlawack +Maintainer-email: hs@ox.cx +License: MIT +Project-URL: Documentation, https://www.attrs.org/ +Project-URL: Changelog, https://www.attrs.org/en/stable/changelog.html +Project-URL: Bug Tracker, https://github.com/python-attrs/attrs/issues +Project-URL: Source Code, https://github.com/python-attrs/attrs +Project-URL: Funding, https://github.com/sponsors/hynek +Project-URL: Tidelift, https://tidelift.com/subscription/pkg/pypi-attrs?utm_source=pypi-attrs&utm_medium=pypi +Project-URL: Ko-fi, https://ko-fi.com/the_hynek +Keywords: class,attribute,boilerplate +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: Natural Language :: English +Classifier: License :: OSI Approved :: MIT License +Classifier: Operating System :: OS Independent +Classifier: Programming Language :: Python +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3.5 +Classifier: Programming Language :: Python :: 3.6 +Classifier: Programming Language :: Python :: 3.7 +Classifier: Programming Language :: Python :: 3.8 +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: 3.11 +Classifier: Programming Language :: Python :: Implementation :: CPython +Classifier: Programming Language :: Python :: Implementation :: PyPy +Classifier: Topic :: Software Development :: Libraries :: Python Modules +Requires-Python: >=3.5 +Description-Content-Type: text/x-rst +License-File: LICENSE +License-File: AUTHORS.rst +Provides-Extra: dev +Requires-Dist: coverage[toml] (>=5.0.2) ; extra == 'dev' +Requires-Dist: hypothesis ; extra == 'dev' +Requires-Dist: pympler ; extra == 'dev' +Requires-Dist: pytest (>=4.3.0) ; extra == 'dev' +Requires-Dist: mypy (!=0.940,>=0.900) ; extra == 'dev' +Requires-Dist: pytest-mypy-plugins ; extra == 'dev' +Requires-Dist: zope.interface ; extra == 'dev' +Requires-Dist: furo ; extra == 'dev' +Requires-Dist: sphinx ; extra == 'dev' +Requires-Dist: sphinx-notfound-page ; extra == 'dev' +Requires-Dist: pre-commit ; extra == 'dev' +Requires-Dist: cloudpickle ; (platform_python_implementation == "CPython") and extra == 'dev' +Provides-Extra: docs +Requires-Dist: furo ; extra == 'docs' +Requires-Dist: sphinx ; extra == 'docs' +Requires-Dist: zope.interface ; extra == 'docs' +Requires-Dist: sphinx-notfound-page ; extra == 'docs' +Provides-Extra: tests +Requires-Dist: coverage[toml] (>=5.0.2) ; extra == 'tests' +Requires-Dist: hypothesis ; extra == 'tests' +Requires-Dist: pympler ; extra == 'tests' +Requires-Dist: pytest (>=4.3.0) ; extra == 'tests' +Requires-Dist: mypy (!=0.940,>=0.900) ; extra == 'tests' +Requires-Dist: pytest-mypy-plugins ; extra == 'tests' +Requires-Dist: zope.interface ; extra == 'tests' +Requires-Dist: cloudpickle ; (platform_python_implementation == "CPython") and extra == 'tests' +Provides-Extra: tests_no_zope +Requires-Dist: coverage[toml] (>=5.0.2) ; extra == 'tests_no_zope' +Requires-Dist: hypothesis ; extra == 'tests_no_zope' +Requires-Dist: pympler ; extra == 'tests_no_zope' +Requires-Dist: pytest (>=4.3.0) ; extra == 'tests_no_zope' +Requires-Dist: mypy (!=0.940,>=0.900) ; extra == 'tests_no_zope' +Requires-Dist: pytest-mypy-plugins ; extra == 'tests_no_zope' +Requires-Dist: cloudpickle ; (platform_python_implementation == "CPython") and extra == 'tests_no_zope' + + +.. image:: https://www.attrs.org/en/stable/_static/attrs_logo.png + :alt: attrs logo + :align: center + + +``attrs`` is the Python package that will bring back the **joy** of **writing classes** by relieving you from the drudgery of implementing object protocols (aka `dunder methods `_). +`Trusted by NASA `_ for Mars missions since 2020! + +Its main goal is to help you to write **concise** and **correct** software without slowing down your code. + +.. teaser-end + +For that, it gives you a class decorator and a way to declaratively define the attributes on that class: + +.. -code-begin- + +.. code-block:: pycon + + >>> from attrs import asdict, define, make_class, Factory + + >>> @define + ... class SomeClass: + ... a_number: int = 42 + ... list_of_numbers: list[int] = Factory(list) + ... + ... def hard_math(self, another_number): + ... return self.a_number + sum(self.list_of_numbers) * another_number + + + >>> sc = SomeClass(1, [1, 2, 3]) + >>> sc + SomeClass(a_number=1, list_of_numbers=[1, 2, 3]) + + >>> sc.hard_math(3) + 19 + >>> sc == SomeClass(1, [1, 2, 3]) + True + >>> sc != SomeClass(2, [3, 2, 1]) + True + + >>> asdict(sc) + {'a_number': 1, 'list_of_numbers': [1, 2, 3]} + + >>> SomeClass() + SomeClass(a_number=42, list_of_numbers=[]) + + >>> C = make_class("C", ["a", "b"]) + >>> C("foo", "bar") + C(a='foo', b='bar') + + +After *declaring* your attributes, ``attrs`` gives you: + +- a concise and explicit overview of the class's attributes, +- a nice human-readable ``__repr__``, +- equality-checking methods, +- an initializer, +- and much more, + +*without* writing dull boilerplate code again and again and *without* runtime performance penalties. + +**Hate type annotations**!? +No problem! +Types are entirely **optional** with ``attrs``. +Simply assign ``attrs.field()`` to the attributes instead of annotating them with types. + +---- + +This example uses ``attrs``'s modern APIs that have been introduced in version 20.1.0, and the ``attrs`` package import name that has been added in version 21.3.0. +The classic APIs (``@attr.s``, ``attr.ib``, plus their serious-business aliases) and the ``attr`` package import name will remain **indefinitely**. + +Please check out `On The Core API Names `_ for a more in-depth explanation. + + +Data Classes +============ + +On the tin, ``attrs`` might remind you of ``dataclasses`` (and indeed, ``dataclasses`` `are a descendant `_ of ``attrs``). +In practice it does a lot more and is more flexible. +For instance it allows you to define `special handling of NumPy arrays for equality checks `_, or allows more ways to `plug into the initialization process `_. + +For more details, please refer to our `comparison page `_. + +.. -project-information- + +Project Information +=================== + +- **License**: `MIT `_ +- **PyPI**: https://pypi.org/project/attrs/ +- **Source Code**: https://github.com/python-attrs/attrs +- **Documentation**: https://www.attrs.org/ +- **Changelog**: https://www.attrs.org/en/stable/changelog.html +- **Get Help**: please use the ``python-attrs`` tag on `StackOverflow `_ +- **Third-party Extensions**: https://github.com/python-attrs/attrs/wiki/Extensions-to-attrs +- **Supported Python Versions**: 3.5 and later (last 2.7-compatible release is `21.4.0 `_) + +If you'd like to contribute to ``attrs`` you're most welcome and we've written `a little guide `_ to get you started! + + +``attrs`` for Enterprise +------------------------ + +Available as part of the Tidelift Subscription. + +The maintainers of ``attrs`` and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source packages you use to build your applications. +Save time, reduce risk, and improve code health, while paying the maintainers of the exact packages you use. +`Learn more. `_ + + +Release Information +=================== + +22.1.0 (2022-07-28) +------------------- + +Backwards-incompatible Changes +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +- Python 2.7 is not supported anymore. + + Dealing with Python 2.7 tooling has become too difficult for a volunteer-run project. + + We have supported Python 2 more than 2 years after it was officially discontinued and feel that we have paid our dues. + All version up to 21.4.0 from December 2021 remain fully functional, of course. + `#936 `_ +- The deprecated ``cmp`` attribute of ``attrs.Attribute`` has been removed. + This does not affect the *cmp* argument to ``attr.s`` that can be used as a shortcut to set *eq* and *order* at the same time. + `#939 `_ + + +Changes +^^^^^^^ + +- Instantiation of frozen slotted classes is now faster. + `#898 `_ +- If an ``eq`` key is defined, it is also used before hashing the attribute. + `#909 `_ +- Added ``attrs.validators.min_len()``. + `#916 `_ +- ``attrs.validators.deep_iterable()``'s *member_validator* argument now also accepts a list of validators and wraps them in an ``attrs.validators.and_()``. + `#925 `_ +- Added missing type stub re-imports for ``attrs.converters`` and ``attrs.filters``. + `#931 `_ +- Added missing stub for ``attr(s).cmp_using()``. + `#949 `_ +- ``attrs.validators._in()``'s ``ValueError`` is not missing the attribute, expected options, and the value it got anymore. + `#951 `_ +- Python 3.11 is now officially supported. + `#969 `_ + +`Full changelog `_. + +Credits +======= + +``attrs`` is written and maintained by `Hynek Schlawack `_. + +The development is kindly supported by `Variomedia AG `_. + +A full list of contributors can be found in `GitHub's overview `_. + +It’s the spiritual successor of `characteristic `_ and aspires to fix some of it clunkiness and unfortunate decisions. +Both were inspired by Twisted’s `FancyEqMixin `_ but both are implemented using class decorators because `subclassing is bad for you `_, m’kay? diff --git a/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/RECORD b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/RECORD new file mode 100644 index 0000000..7288f98 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/RECORD @@ -0,0 +1,56 @@ +attr/__init__.py,sha256=KZjj88xCd_tH-W59HR1EvHiYAUi4Zd1dzOxx8P77jeI,1602 +attr/__init__.pyi,sha256=t-1r-I1VnyxFrqic__QxIk1HUc3ag53L2b8lv0xDZTw,15137 +attr/__pycache__/__init__.cpython-310.pyc,, +attr/__pycache__/_cmp.cpython-310.pyc,, +attr/__pycache__/_compat.cpython-310.pyc,, +attr/__pycache__/_config.cpython-310.pyc,, +attr/__pycache__/_funcs.cpython-310.pyc,, +attr/__pycache__/_make.cpython-310.pyc,, +attr/__pycache__/_next_gen.cpython-310.pyc,, +attr/__pycache__/_version_info.cpython-310.pyc,, +attr/__pycache__/converters.cpython-310.pyc,, +attr/__pycache__/exceptions.cpython-310.pyc,, 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+attrs/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +attrs/setters.py,sha256=oKw51C72Hh45wTwYvDHJP9kbicxiMhMR4Y5GvdpKdHQ,67 +attrs/validators.py,sha256=4ag1SyVD2Hm3PYKiNG_NOtR_e7f81Hr6GiNl4YvXo4Q,70 diff --git a/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/WHEEL b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/WHEEL new file mode 100644 index 0000000..0b18a28 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/WHEEL @@ -0,0 +1,6 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.37.1) +Root-Is-Purelib: true +Tag: py2-none-any +Tag: py3-none-any + diff --git a/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/top_level.txt b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/top_level.txt new file mode 100644 index 0000000..eca8ba9 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs-22.1.0.dist-info/top_level.txt @@ -0,0 +1,2 @@ +attr +attrs diff --git a/utils/python-venv/Lib/site-packages/attrs/__init__.py b/utils/python-venv/Lib/site-packages/attrs/__init__.py new file mode 100644 index 0000000..a704b8b --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs/__init__.py @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: MIT + +from attr import ( + NOTHING, + Attribute, + Factory, + __author__, + __copyright__, + __description__, + __doc__, + __email__, + __license__, + __title__, + __url__, + __version__, + __version_info__, + assoc, + cmp_using, + define, + evolve, + field, + fields, + fields_dict, + frozen, + has, + make_class, + mutable, + resolve_types, + validate, +) +from attr._next_gen import asdict, astuple + +from . import converters, exceptions, filters, setters, validators + + +__all__ = [ + "__author__", + "__copyright__", + "__description__", + "__doc__", + "__email__", + "__license__", + "__title__", + "__url__", + "__version__", + "__version_info__", + "asdict", + "assoc", + "astuple", + "Attribute", + "cmp_using", + "converters", + "define", + "evolve", + "exceptions", + "Factory", + "field", + "fields_dict", + "fields", + "filters", + "frozen", + "has", + "make_class", + "mutable", + "NOTHING", + "resolve_types", + "setters", + "validate", + "validators", +] diff --git a/utils/python-venv/Lib/site-packages/attrs/__init__.pyi b/utils/python-venv/Lib/site-packages/attrs/__init__.pyi new file mode 100644 index 0000000..fc44de4 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs/__init__.pyi @@ -0,0 +1,66 @@ +from typing import ( + Any, + Callable, + Dict, + Mapping, + Optional, + Sequence, + Tuple, + Type, +) + +# Because we need to type our own stuff, we have to make everything from +# attr explicitly public too. +from attr import __author__ as __author__ +from attr import __copyright__ as __copyright__ +from attr import __description__ as __description__ +from attr import __email__ as __email__ +from attr import __license__ as __license__ +from attr import __title__ as __title__ +from attr import __url__ as __url__ +from attr import __version__ as __version__ +from attr import __version_info__ as __version_info__ +from attr import _FilterType +from attr import assoc as assoc +from attr import Attribute as Attribute +from attr import cmp_using as cmp_using +from attr import converters as converters +from attr import define as define +from attr import evolve as evolve +from attr import exceptions as exceptions +from attr import Factory as Factory +from attr import field as field +from attr import fields as fields +from attr import fields_dict as fields_dict +from attr import filters as filters +from attr import frozen as frozen +from attr import has as has +from attr import make_class as make_class +from attr import mutable as mutable +from attr import NOTHING as NOTHING +from attr import resolve_types as resolve_types +from attr import setters as setters +from attr import validate as validate +from attr import validators as validators + +# TODO: see definition of attr.asdict/astuple +def asdict( + inst: Any, + recurse: bool = ..., + filter: Optional[_FilterType[Any]] = ..., + dict_factory: Type[Mapping[Any, Any]] = ..., + retain_collection_types: bool = ..., + value_serializer: Optional[ + Callable[[type, Attribute[Any], Any], Any] + ] = ..., + tuple_keys: bool = ..., +) -> Dict[str, Any]: ... + +# TODO: add support for returning NamedTuple from the mypy plugin +def astuple( + inst: Any, + recurse: bool = ..., + filter: Optional[_FilterType[Any]] = ..., + tuple_factory: Type[Sequence[Any]] = ..., + retain_collection_types: bool = ..., +) -> Tuple[Any, ...]: ... diff --git a/utils/python-venv/Lib/site-packages/attrs/converters.py b/utils/python-venv/Lib/site-packages/attrs/converters.py new file mode 100644 index 0000000..edfa8d3 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs/converters.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from attr.converters import * # noqa diff --git a/utils/python-venv/Lib/site-packages/attrs/exceptions.py b/utils/python-venv/Lib/site-packages/attrs/exceptions.py new file mode 100644 index 0000000..bd9efed --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs/exceptions.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from attr.exceptions import * # noqa diff --git a/utils/python-venv/Lib/site-packages/attrs/filters.py b/utils/python-venv/Lib/site-packages/attrs/filters.py new file mode 100644 index 0000000..5295900 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs/filters.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from attr.filters import * # noqa diff --git a/utils/python-venv/Lib/site-packages/attrs/py.typed b/utils/python-venv/Lib/site-packages/attrs/py.typed new file mode 100644 index 0000000..e69de29 diff --git a/utils/python-venv/Lib/site-packages/attrs/setters.py b/utils/python-venv/Lib/site-packages/attrs/setters.py new file mode 100644 index 0000000..9b50770 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs/setters.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from attr.setters import * # noqa diff --git a/utils/python-venv/Lib/site-packages/attrs/validators.py b/utils/python-venv/Lib/site-packages/attrs/validators.py new file mode 100644 index 0000000..ab2c9b3 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/attrs/validators.py @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: MIT + +from attr.validators import * # noqa diff --git a/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/INSTALLER b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/INSTALLER new file mode 100644 index 0000000..a1b589e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/METADATA b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/METADATA new file mode 100644 index 0000000..a1b5c57 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/METADATA @@ -0,0 +1,441 @@ +Metadata-Version: 2.1 +Name: colorama +Version: 0.4.6 +Summary: Cross-platform colored terminal text. +Project-URL: Homepage, https://github.com/tartley/colorama +Author-email: Jonathan Hartley +License-File: LICENSE.txt +Keywords: ansi,color,colour,crossplatform,terminal,text,windows,xplatform +Classifier: Development Status :: 5 - Production/Stable +Classifier: Environment :: Console +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: BSD License +Classifier: Operating System :: OS Independent +Classifier: Programming Language :: Python +Classifier: Programming Language :: Python :: 2 +Classifier: Programming Language :: Python :: 2.7 +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3.7 +Classifier: Programming Language :: Python :: 3.8 +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: Implementation :: CPython +Classifier: Programming Language :: Python :: Implementation :: PyPy +Classifier: Topic :: Terminals +Requires-Python: !=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7 +Description-Content-Type: text/x-rst + +.. image:: https://img.shields.io/pypi/v/colorama.svg + :target: https://pypi.org/project/colorama/ + :alt: Latest Version + +.. image:: https://img.shields.io/pypi/pyversions/colorama.svg + :target: https://pypi.org/project/colorama/ + :alt: Supported Python versions + +.. image:: https://github.com/tartley/colorama/actions/workflows/test.yml/badge.svg + :target: https://github.com/tartley/colorama/actions/workflows/test.yml + :alt: Build Status + +Colorama +======== + +Makes ANSI escape character sequences (for producing colored terminal text and +cursor positioning) work under MS Windows. + +.. |donate| image:: https://www.paypalobjects.com/en_US/i/btn/btn_donate_SM.gif + :target: https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=2MZ9D2GMLYCUJ&item_name=Colorama¤cy_code=USD + :alt: Donate with Paypal + +`PyPI for releases `_ | +`Github for source `_ | +`Colorama for enterprise on Tidelift `_ + +If you find Colorama useful, please |donate| to the authors. Thank you! + +Installation +------------ + +Tested on CPython 2.7, 3.7, 3.8, 3.9 and 3.10 and Pypy 2.7 and 3.8. + +No requirements other than the standard library. + +.. code-block:: bash + + pip install colorama + # or + conda install -c anaconda colorama + +Description +----------- + +ANSI escape character sequences have long been used to produce colored terminal +text and cursor positioning on Unix and Macs. Colorama makes this work on +Windows, too, by wrapping ``stdout``, stripping ANSI sequences it finds (which +would appear as gobbledygook in the output), and converting them into the +appropriate win32 calls to modify the state of the terminal. On other platforms, +Colorama does nothing. + +This has the upshot of providing a simple cross-platform API for printing +colored terminal text from Python, and has the happy side-effect that existing +applications or libraries which use ANSI sequences to produce colored output on +Linux or Macs can now also work on Windows, simply by calling +``colorama.just_fix_windows_console()`` (since v0.4.6) or ``colorama.init()`` +(all versions, but may have other side-effects – see below). + +An alternative approach is to install ``ansi.sys`` on Windows machines, which +provides the same behaviour for all applications running in terminals. Colorama +is intended for situations where that isn't easy (e.g., maybe your app doesn't +have an installer.) + +Demo scripts in the source code repository print some colored text using +ANSI sequences. Compare their output under Gnome-terminal's built in ANSI +handling, versus on Windows Command-Prompt using Colorama: + +.. image:: https://github.com/tartley/colorama/raw/master/screenshots/ubuntu-demo.png + :width: 661 + :height: 357 + :alt: ANSI sequences on Ubuntu under gnome-terminal. + +.. image:: https://github.com/tartley/colorama/raw/master/screenshots/windows-demo.png + :width: 668 + :height: 325 + :alt: Same ANSI sequences on Windows, using Colorama. + +These screenshots show that, on Windows, Colorama does not support ANSI 'dim +text'; it looks the same as 'normal text'. + +Usage +----- + +Initialisation +.............. + +If the only thing you want from Colorama is to get ANSI escapes to work on +Windows, then run: + +.. code-block:: python + + from colorama import just_fix_windows_console + just_fix_windows_console() + +If you're on a recent version of Windows 10 or better, and your stdout/stderr +are pointing to a Windows console, then this will flip the magic configuration +switch to enable Windows' built-in ANSI support. + +If you're on an older version of Windows, and your stdout/stderr are pointing to +a Windows console, then this will wrap ``sys.stdout`` and/or ``sys.stderr`` in a +magic file object that intercepts ANSI escape sequences and issues the +appropriate Win32 calls to emulate them. + +In all other circumstances, it does nothing whatsoever. Basically the idea is +that this makes Windows act like Unix with respect to ANSI escape handling. + +It's safe to call this function multiple times. It's safe to call this function +on non-Windows platforms, but it won't do anything. It's safe to call this +function when one or both of your stdout/stderr are redirected to a file – it +won't do anything to those streams. + +Alternatively, you can use the older interface with more features (but also more +potential footguns): + +.. code-block:: python + + from colorama import init + init() + +This does the same thing as ``just_fix_windows_console``, except for the +following differences: + +- It's not safe to call ``init`` multiple times; you can end up with multiple + layers of wrapping and broken ANSI support. + +- Colorama will apply a heuristic to guess whether stdout/stderr support ANSI, + and if it thinks they don't, then it will wrap ``sys.stdout`` and + ``sys.stderr`` in a magic file object that strips out ANSI escape sequences + before printing them. This happens on all platforms, and can be convenient if + you want to write your code to emit ANSI escape sequences unconditionally, and + let Colorama decide whether they should actually be output. But note that + Colorama's heuristic is not particularly clever. + +- ``init`` also accepts explicit keyword args to enable/disable various + functionality – see below. + +To stop using Colorama before your program exits, simply call ``deinit()``. +This will restore ``stdout`` and ``stderr`` to their original values, so that +Colorama is disabled. To resume using Colorama again, call ``reinit()``; it is +cheaper than calling ``init()`` again (but does the same thing). + +Most users should depend on ``colorama >= 0.4.6``, and use +``just_fix_windows_console``. The old ``init`` interface will be supported +indefinitely for backwards compatibility, but we don't plan to fix any issues +with it, also for backwards compatibility. + +Colored Output +.............. + +Cross-platform printing of colored text can then be done using Colorama's +constant shorthand for ANSI escape sequences. These are deliberately +rudimentary, see below. + +.. code-block:: python + + from colorama import Fore, Back, Style + print(Fore.RED + 'some red text') + print(Back.GREEN + 'and with a green background') + print(Style.DIM + 'and in dim text') + print(Style.RESET_ALL) + print('back to normal now') + +...or simply by manually printing ANSI sequences from your own code: + +.. code-block:: python + + print('\033[31m' + 'some red text') + print('\033[39m') # and reset to default color + +...or, Colorama can be used in conjunction with existing ANSI libraries +such as the venerable `Termcolor `_ +the fabulous `Blessings `_, +or the incredible `_Rich `_. + +If you wish Colorama's Fore, Back and Style constants were more capable, +then consider using one of the above highly capable libraries to generate +colors, etc, and use Colorama just for its primary purpose: to convert +those ANSI sequences to also work on Windows: + +SIMILARLY, do not send PRs adding the generation of new ANSI types to Colorama. +We are only interested in converting ANSI codes to win32 API calls, not +shortcuts like the above to generate ANSI characters. + +.. code-block:: python + + from colorama import just_fix_windows_console + from termcolor import colored + + # use Colorama to make Termcolor work on Windows too + just_fix_windows_console() + + # then use Termcolor for all colored text output + print(colored('Hello, World!', 'green', 'on_red')) + +Available formatting constants are:: + + Fore: BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE, RESET. + Back: BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE, RESET. + Style: DIM, NORMAL, BRIGHT, RESET_ALL + +``Style.RESET_ALL`` resets foreground, background, and brightness. Colorama will +perform this reset automatically on program exit. + +These are fairly well supported, but not part of the standard:: + + Fore: LIGHTBLACK_EX, LIGHTRED_EX, LIGHTGREEN_EX, LIGHTYELLOW_EX, LIGHTBLUE_EX, LIGHTMAGENTA_EX, LIGHTCYAN_EX, LIGHTWHITE_EX + Back: LIGHTBLACK_EX, LIGHTRED_EX, LIGHTGREEN_EX, LIGHTYELLOW_EX, LIGHTBLUE_EX, LIGHTMAGENTA_EX, LIGHTCYAN_EX, LIGHTWHITE_EX + +Cursor Positioning +.................. + +ANSI codes to reposition the cursor are supported. See ``demos/demo06.py`` for +an example of how to generate them. + +Init Keyword Args +................. + +``init()`` accepts some ``**kwargs`` to override default behaviour. + +init(autoreset=False): + If you find yourself repeatedly sending reset sequences to turn off color + changes at the end of every print, then ``init(autoreset=True)`` will + automate that: + + .. code-block:: python + + from colorama import init + init(autoreset=True) + print(Fore.RED + 'some red text') + print('automatically back to default color again') + +init(strip=None): + Pass ``True`` or ``False`` to override whether ANSI codes should be + stripped from the output. The default behaviour is to strip if on Windows + or if output is redirected (not a tty). + +init(convert=None): + Pass ``True`` or ``False`` to override whether to convert ANSI codes in the + output into win32 calls. The default behaviour is to convert if on Windows + and output is to a tty (terminal). + +init(wrap=True): + On Windows, Colorama works by replacing ``sys.stdout`` and ``sys.stderr`` + with proxy objects, which override the ``.write()`` method to do their work. + If this wrapping causes you problems, then this can be disabled by passing + ``init(wrap=False)``. The default behaviour is to wrap if ``autoreset`` or + ``strip`` or ``convert`` are True. + + When wrapping is disabled, colored printing on non-Windows platforms will + continue to work as normal. To do cross-platform colored output, you can + use Colorama's ``AnsiToWin32`` proxy directly: + + .. code-block:: python + + import sys + from colorama import init, AnsiToWin32 + init(wrap=False) + stream = AnsiToWin32(sys.stderr).stream + + # Python 2 + print >>stream, Fore.BLUE + 'blue text on stderr' + + # Python 3 + print(Fore.BLUE + 'blue text on stderr', file=stream) + +Recognised ANSI Sequences +......................... + +ANSI sequences generally take the form:: + + ESC [ ; ... + +Where ```` is an integer, and ```` is a single letter. Zero or +more params are passed to a ````. If no params are passed, it is +generally synonymous with passing a single zero. No spaces exist in the +sequence; they have been inserted here simply to read more easily. + +The only ANSI sequences that Colorama converts into win32 calls are:: + + ESC [ 0 m # reset all (colors and brightness) + ESC [ 1 m # bright + ESC [ 2 m # dim (looks same as normal brightness) + ESC [ 22 m # normal brightness + + # FOREGROUND: + ESC [ 30 m # black + ESC [ 31 m # red + ESC [ 32 m # green + ESC [ 33 m # yellow + ESC [ 34 m # blue + ESC [ 35 m # magenta + ESC [ 36 m # cyan + ESC [ 37 m # white + ESC [ 39 m # reset + + # BACKGROUND + ESC [ 40 m # black + ESC [ 41 m # red + ESC [ 42 m # green + ESC [ 43 m # yellow + ESC [ 44 m # blue + ESC [ 45 m # magenta + ESC [ 46 m # cyan + ESC [ 47 m # white + ESC [ 49 m # reset + + # cursor positioning + ESC [ y;x H # position cursor at x across, y down + ESC [ y;x f # position cursor at x across, y down + ESC [ n A # move cursor n lines up + ESC [ n B # move cursor n lines down + ESC [ n C # move cursor n characters forward + ESC [ n D # move cursor n characters backward + + # clear the screen + ESC [ mode J # clear the screen + + # clear the line + ESC [ mode K # clear the line + +Multiple numeric params to the ``'m'`` command can be combined into a single +sequence:: + + ESC [ 36 ; 45 ; 1 m # bright cyan text on magenta background + +All other ANSI sequences of the form ``ESC [ ; ... `` +are silently stripped from the output on Windows. + +Any other form of ANSI sequence, such as single-character codes or alternative +initial characters, are not recognised or stripped. It would be cool to add +them though. Let me know if it would be useful for you, via the Issues on +GitHub. + +Status & Known Problems +----------------------- + +I've personally only tested it on Windows XP (CMD, Console2), Ubuntu +(gnome-terminal, xterm), and OS X. + +Some valid ANSI sequences aren't recognised. + +If you're hacking on the code, see `README-hacking.md`_. ESPECIALLY, see the +explanation there of why we do not want PRs that allow Colorama to generate new +types of ANSI codes. + +See outstanding issues and wish-list: +https://github.com/tartley/colorama/issues + +If anything doesn't work for you, or doesn't do what you expected or hoped for, +I'd love to hear about it on that issues list, would be delighted by patches, +and would be happy to grant commit access to anyone who submits a working patch +or two. + +.. _README-hacking.md: README-hacking.md + +License +------- + +Copyright Jonathan Hartley & Arnon Yaari, 2013-2020. BSD 3-Clause license; see +LICENSE file. + +Professional support +-------------------- + +.. |tideliftlogo| image:: https://cdn2.hubspot.net/hubfs/4008838/website/logos/logos_for_download/Tidelift_primary-shorthand-logo.png + :alt: Tidelift + :target: https://tidelift.com/subscription/pkg/pypi-colorama?utm_source=pypi-colorama&utm_medium=referral&utm_campaign=readme + +.. list-table:: + :widths: 10 100 + + * - |tideliftlogo| + - Professional support for colorama is available as part of the + `Tidelift Subscription`_. + Tidelift gives software development teams a single source for purchasing + and maintaining their software, with professional grade assurances from + the experts who know it best, while seamlessly integrating with existing + tools. + +.. _Tidelift Subscription: https://tidelift.com/subscription/pkg/pypi-colorama?utm_source=pypi-colorama&utm_medium=referral&utm_campaign=readme + +Thanks +------ + +See the CHANGELOG for more thanks! + +* Marc Schlaich (schlamar) for a ``setup.py`` fix for Python2.5. +* Marc Abramowitz, reported & fixed a crash on exit with closed ``stdout``, + providing a solution to issue #7's setuptools/distutils debate, + and other fixes. +* User 'eryksun', for guidance on correctly instantiating ``ctypes.windll``. +* Matthew McCormick for politely pointing out a longstanding crash on non-Win. +* Ben Hoyt, for a magnificent fix under 64-bit Windows. +* Jesse at Empty Square for submitting a fix for examples in the README. +* User 'jamessp', an observant documentation fix for cursor positioning. +* User 'vaal1239', Dave Mckee & Lackner Kristof for a tiny but much-needed Win7 + fix. +* Julien Stuyck, for wisely suggesting Python3 compatible updates to README. +* Daniel Griffith for multiple fabulous patches. +* Oscar Lesta for a valuable fix to stop ANSI chars being sent to non-tty + output. +* Roger Binns, for many suggestions, valuable feedback, & bug reports. +* Tim Golden for thought and much appreciated feedback on the initial idea. +* User 'Zearin' for updates to the README file. +* John Szakmeister for adding support for light colors +* Charles Merriam for adding documentation to demos +* Jurko for a fix on 64-bit Windows CPython2.5 w/o ctypes +* Florian Bruhin for a fix when stdout or stderr are None +* Thomas Weininger for fixing ValueError on Windows +* Remi Rampin for better Github integration and fixes to the README file +* Simeon Visser for closing a file handle using 'with' and updating classifiers + to include Python 3.3 and 3.4 +* Andy Neff for fixing RESET of LIGHT_EX colors. +* Jonathan Hartley for the initial idea and implementation. diff --git a/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/RECORD b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/RECORD new file mode 100644 index 0000000..8c5f12d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/RECORD @@ -0,0 +1,31 @@ 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+colorama/initialise.py,sha256=-hIny86ClXo39ixh5iSCfUIa2f_h_bgKRDW7gqs-KLU,3325 +colorama/tests/__init__.py,sha256=MkgPAEzGQd-Rq0w0PZXSX2LadRWhUECcisJY8lSrm4Q,75 +colorama/tests/__pycache__/__init__.cpython-310.pyc,, +colorama/tests/__pycache__/ansi_test.cpython-310.pyc,, +colorama/tests/__pycache__/ansitowin32_test.cpython-310.pyc,, +colorama/tests/__pycache__/initialise_test.cpython-310.pyc,, +colorama/tests/__pycache__/isatty_test.cpython-310.pyc,, +colorama/tests/__pycache__/utils.cpython-310.pyc,, +colorama/tests/__pycache__/winterm_test.cpython-310.pyc,, +colorama/tests/ansi_test.py,sha256=FeViDrUINIZcr505PAxvU4AjXz1asEiALs9GXMhwRaE,2839 +colorama/tests/ansitowin32_test.py,sha256=RN7AIhMJ5EqDsYaCjVo-o4u8JzDD4ukJbmevWKS70rY,10678 +colorama/tests/initialise_test.py,sha256=BbPy-XfyHwJ6zKozuQOvNvQZzsx9vdb_0bYXn7hsBTc,6741 +colorama/tests/isatty_test.py,sha256=Pg26LRpv0yQDB5Ac-sxgVXG7hsA1NYvapFgApZfYzZg,1866 +colorama/tests/utils.py,sha256=1IIRylG39z5-dzq09R_ngufxyPZxgldNbrxKxUGwGKE,1079 +colorama/tests/winterm_test.py,sha256=qoWFPEjym5gm2RuMwpf3pOis3a5r_PJZFCzK254JL8A,3709 +colorama/win32.py,sha256=YQOKwMTwtGBbsY4dL5HYTvwTeP9wIQra5MvPNddpxZs,6181 +colorama/winterm.py,sha256=XCQFDHjPi6AHYNdZwy0tA02H-Jh48Jp-HvCjeLeLp3U,7134 diff --git a/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/WHEEL b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/WHEEL new file mode 100644 index 0000000..d79189f --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: hatchling 1.11.1 +Root-Is-Purelib: true +Tag: py2-none-any +Tag: py3-none-any diff --git a/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/licenses/LICENSE.txt b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/licenses/LICENSE.txt new file mode 100644 index 0000000..3105888 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama-0.4.6.dist-info/licenses/LICENSE.txt @@ -0,0 +1,27 @@ +Copyright (c) 2010 Jonathan Hartley +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +* Neither the name of the copyright holders, nor those of its contributors + may be used to endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/utils/python-venv/Lib/site-packages/colorama/__init__.py b/utils/python-venv/Lib/site-packages/colorama/__init__.py new file mode 100644 index 0000000..383101c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/__init__.py @@ -0,0 +1,7 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +from .initialise import init, deinit, reinit, colorama_text, just_fix_windows_console +from .ansi import Fore, Back, Style, Cursor +from .ansitowin32 import AnsiToWin32 + +__version__ = '0.4.6' + diff --git a/utils/python-venv/Lib/site-packages/colorama/ansi.py b/utils/python-venv/Lib/site-packages/colorama/ansi.py new file mode 100644 index 0000000..11ec695 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/ansi.py @@ -0,0 +1,102 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +''' +This module generates ANSI character codes to printing colors to terminals. +See: http://en.wikipedia.org/wiki/ANSI_escape_code +''' + +CSI = '\033[' +OSC = '\033]' +BEL = '\a' + + +def code_to_chars(code): + return CSI + str(code) + 'm' + +def set_title(title): + return OSC + '2;' + title + BEL + +def clear_screen(mode=2): + return CSI + str(mode) + 'J' + +def clear_line(mode=2): + return CSI + str(mode) + 'K' + + +class AnsiCodes(object): + def __init__(self): + # the subclasses declare class attributes which are numbers. + # Upon instantiation we define instance attributes, which are the same + # as the class attributes but wrapped with the ANSI escape sequence + for name in dir(self): + if not name.startswith('_'): + value = getattr(self, name) + setattr(self, name, code_to_chars(value)) + + +class AnsiCursor(object): + def UP(self, n=1): + return CSI + str(n) + 'A' + def DOWN(self, n=1): + return CSI + str(n) + 'B' + def FORWARD(self, n=1): + return CSI + str(n) + 'C' + def BACK(self, n=1): + return CSI + str(n) + 'D' + def POS(self, x=1, y=1): + return CSI + str(y) + ';' + str(x) + 'H' + + +class AnsiFore(AnsiCodes): + BLACK = 30 + RED = 31 + GREEN = 32 + YELLOW = 33 + BLUE = 34 + MAGENTA = 35 + CYAN = 36 + WHITE = 37 + RESET = 39 + + # These are fairly well supported, but not part of the standard. + LIGHTBLACK_EX = 90 + LIGHTRED_EX = 91 + LIGHTGREEN_EX = 92 + LIGHTYELLOW_EX = 93 + LIGHTBLUE_EX = 94 + LIGHTMAGENTA_EX = 95 + LIGHTCYAN_EX = 96 + LIGHTWHITE_EX = 97 + + +class AnsiBack(AnsiCodes): + BLACK = 40 + RED = 41 + GREEN = 42 + YELLOW = 43 + BLUE = 44 + MAGENTA = 45 + CYAN = 46 + WHITE = 47 + RESET = 49 + + # These are fairly well supported, but not part of the standard. + LIGHTBLACK_EX = 100 + LIGHTRED_EX = 101 + LIGHTGREEN_EX = 102 + LIGHTYELLOW_EX = 103 + LIGHTBLUE_EX = 104 + LIGHTMAGENTA_EX = 105 + LIGHTCYAN_EX = 106 + LIGHTWHITE_EX = 107 + + +class AnsiStyle(AnsiCodes): + BRIGHT = 1 + DIM = 2 + NORMAL = 22 + RESET_ALL = 0 + +Fore = AnsiFore() +Back = AnsiBack() +Style = AnsiStyle() +Cursor = AnsiCursor() diff --git a/utils/python-venv/Lib/site-packages/colorama/ansitowin32.py b/utils/python-venv/Lib/site-packages/colorama/ansitowin32.py new file mode 100644 index 0000000..abf209e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/ansitowin32.py @@ -0,0 +1,277 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +import re +import sys +import os + +from .ansi import AnsiFore, AnsiBack, AnsiStyle, Style, BEL +from .winterm import enable_vt_processing, WinTerm, WinColor, WinStyle +from .win32 import windll, winapi_test + + +winterm = None +if windll is not None: + winterm = WinTerm() + + +class StreamWrapper(object): + ''' + Wraps a stream (such as stdout), acting as a transparent proxy for all + attribute access apart from method 'write()', which is delegated to our + Converter instance. + ''' + def __init__(self, wrapped, converter): + # double-underscore everything to prevent clashes with names of + # attributes on the wrapped stream object. + self.__wrapped = wrapped + self.__convertor = converter + + def __getattr__(self, name): + return getattr(self.__wrapped, name) + + def __enter__(self, *args, **kwargs): + # special method lookup bypasses __getattr__/__getattribute__, see + # https://stackoverflow.com/questions/12632894/why-doesnt-getattr-work-with-exit + # thus, contextlib magic methods are not proxied via __getattr__ + return self.__wrapped.__enter__(*args, **kwargs) + + def __exit__(self, *args, **kwargs): + return self.__wrapped.__exit__(*args, **kwargs) + + def __setstate__(self, state): + self.__dict__ = state + + def __getstate__(self): + return self.__dict__ + + def write(self, text): + self.__convertor.write(text) + + def isatty(self): + stream = self.__wrapped + if 'PYCHARM_HOSTED' in os.environ: + if stream is not None and (stream is sys.__stdout__ or stream is sys.__stderr__): + return True + try: + stream_isatty = stream.isatty + except AttributeError: + return False + else: + return stream_isatty() + + @property + def closed(self): + stream = self.__wrapped + try: + return stream.closed + # AttributeError in the case that the stream doesn't support being closed + # ValueError for the case that the stream has already been detached when atexit runs + except (AttributeError, ValueError): + return True + + +class AnsiToWin32(object): + ''' + Implements a 'write()' method which, on Windows, will strip ANSI character + sequences from the text, and if outputting to a tty, will convert them into + win32 function calls. + ''' + ANSI_CSI_RE = re.compile('\001?\033\\[((?:\\d|;)*)([a-zA-Z])\002?') # Control Sequence Introducer + ANSI_OSC_RE = re.compile('\001?\033\\]([^\a]*)(\a)\002?') # Operating System Command + + def __init__(self, wrapped, convert=None, strip=None, autoreset=False): + # The wrapped stream (normally sys.stdout or sys.stderr) + self.wrapped = wrapped + + # should we reset colors to defaults after every .write() + self.autoreset = autoreset + + # create the proxy wrapping our output stream + self.stream = StreamWrapper(wrapped, self) + + on_windows = os.name == 'nt' + # We test if the WinAPI works, because even if we are on Windows + # we may be using a terminal that doesn't support the WinAPI + # (e.g. Cygwin Terminal). In this case it's up to the terminal + # to support the ANSI codes. + conversion_supported = on_windows and winapi_test() + try: + fd = wrapped.fileno() + except Exception: + fd = -1 + system_has_native_ansi = not on_windows or enable_vt_processing(fd) + have_tty = not self.stream.closed and self.stream.isatty() + need_conversion = conversion_supported and not system_has_native_ansi + + # should we strip ANSI sequences from our output? + if strip is None: + strip = need_conversion or not have_tty + self.strip = strip + + # should we should convert ANSI sequences into win32 calls? + if convert is None: + convert = need_conversion and have_tty + self.convert = convert + + # dict of ansi codes to win32 functions and parameters + self.win32_calls = self.get_win32_calls() + + # are we wrapping stderr? + self.on_stderr = self.wrapped is sys.stderr + + def should_wrap(self): + ''' + True if this class is actually needed. If false, then the output + stream will not be affected, nor will win32 calls be issued, so + wrapping stdout is not actually required. This will generally be + False on non-Windows platforms, unless optional functionality like + autoreset has been requested using kwargs to init() + ''' + return self.convert or self.strip or self.autoreset + + def get_win32_calls(self): + if self.convert and winterm: + return { + AnsiStyle.RESET_ALL: (winterm.reset_all, ), + AnsiStyle.BRIGHT: (winterm.style, WinStyle.BRIGHT), + AnsiStyle.DIM: (winterm.style, WinStyle.NORMAL), + AnsiStyle.NORMAL: (winterm.style, WinStyle.NORMAL), + AnsiFore.BLACK: (winterm.fore, WinColor.BLACK), + AnsiFore.RED: (winterm.fore, WinColor.RED), + AnsiFore.GREEN: (winterm.fore, WinColor.GREEN), + AnsiFore.YELLOW: (winterm.fore, WinColor.YELLOW), + AnsiFore.BLUE: (winterm.fore, WinColor.BLUE), + AnsiFore.MAGENTA: (winterm.fore, WinColor.MAGENTA), + AnsiFore.CYAN: (winterm.fore, WinColor.CYAN), + AnsiFore.WHITE: (winterm.fore, WinColor.GREY), + AnsiFore.RESET: (winterm.fore, ), + AnsiFore.LIGHTBLACK_EX: (winterm.fore, WinColor.BLACK, True), + AnsiFore.LIGHTRED_EX: (winterm.fore, WinColor.RED, True), + AnsiFore.LIGHTGREEN_EX: (winterm.fore, WinColor.GREEN, True), + AnsiFore.LIGHTYELLOW_EX: (winterm.fore, WinColor.YELLOW, True), + AnsiFore.LIGHTBLUE_EX: (winterm.fore, WinColor.BLUE, True), + AnsiFore.LIGHTMAGENTA_EX: (winterm.fore, WinColor.MAGENTA, True), + AnsiFore.LIGHTCYAN_EX: (winterm.fore, WinColor.CYAN, True), + AnsiFore.LIGHTWHITE_EX: (winterm.fore, WinColor.GREY, True), + AnsiBack.BLACK: (winterm.back, WinColor.BLACK), + AnsiBack.RED: (winterm.back, WinColor.RED), + AnsiBack.GREEN: (winterm.back, WinColor.GREEN), + AnsiBack.YELLOW: (winterm.back, WinColor.YELLOW), + AnsiBack.BLUE: (winterm.back, WinColor.BLUE), + AnsiBack.MAGENTA: (winterm.back, WinColor.MAGENTA), + AnsiBack.CYAN: (winterm.back, WinColor.CYAN), + AnsiBack.WHITE: (winterm.back, WinColor.GREY), + AnsiBack.RESET: (winterm.back, ), + AnsiBack.LIGHTBLACK_EX: (winterm.back, WinColor.BLACK, True), + AnsiBack.LIGHTRED_EX: (winterm.back, WinColor.RED, True), + AnsiBack.LIGHTGREEN_EX: (winterm.back, WinColor.GREEN, True), + AnsiBack.LIGHTYELLOW_EX: (winterm.back, WinColor.YELLOW, True), + AnsiBack.LIGHTBLUE_EX: (winterm.back, WinColor.BLUE, True), + AnsiBack.LIGHTMAGENTA_EX: (winterm.back, WinColor.MAGENTA, True), + AnsiBack.LIGHTCYAN_EX: (winterm.back, WinColor.CYAN, True), + AnsiBack.LIGHTWHITE_EX: (winterm.back, WinColor.GREY, True), + } + return dict() + + def write(self, text): + if self.strip or self.convert: + self.write_and_convert(text) + else: + self.wrapped.write(text) + self.wrapped.flush() + if self.autoreset: + self.reset_all() + + + def reset_all(self): + if self.convert: + self.call_win32('m', (0,)) + elif not self.strip and not self.stream.closed: + self.wrapped.write(Style.RESET_ALL) + + + def write_and_convert(self, text): + ''' + Write the given text to our wrapped stream, stripping any ANSI + sequences from the text, and optionally converting them into win32 + calls. + ''' + cursor = 0 + text = self.convert_osc(text) + for match in self.ANSI_CSI_RE.finditer(text): + start, end = match.span() + self.write_plain_text(text, cursor, start) + self.convert_ansi(*match.groups()) + cursor = end + self.write_plain_text(text, cursor, len(text)) + + + def write_plain_text(self, text, start, end): + if start < end: + self.wrapped.write(text[start:end]) + self.wrapped.flush() + + + def convert_ansi(self, paramstring, command): + if self.convert: + params = self.extract_params(command, paramstring) + self.call_win32(command, params) + + + def extract_params(self, command, paramstring): + if command in 'Hf': + params = tuple(int(p) if len(p) != 0 else 1 for p in paramstring.split(';')) + while len(params) < 2: + # defaults: + params = params + (1,) + else: + params = tuple(int(p) for p in paramstring.split(';') if len(p) != 0) + if len(params) == 0: + # defaults: + if command in 'JKm': + params = (0,) + elif command in 'ABCD': + params = (1,) + + return params + + + def call_win32(self, command, params): + if command == 'm': + for param in params: + if param in self.win32_calls: + func_args = self.win32_calls[param] + func = func_args[0] + args = func_args[1:] + kwargs = dict(on_stderr=self.on_stderr) + func(*args, **kwargs) + elif command in 'J': + winterm.erase_screen(params[0], on_stderr=self.on_stderr) + elif command in 'K': + winterm.erase_line(params[0], on_stderr=self.on_stderr) + elif command in 'Hf': # cursor position - absolute + winterm.set_cursor_position(params, on_stderr=self.on_stderr) + elif command in 'ABCD': # cursor position - relative + n = params[0] + # A - up, B - down, C - forward, D - back + x, y = {'A': (0, -n), 'B': (0, n), 'C': (n, 0), 'D': (-n, 0)}[command] + winterm.cursor_adjust(x, y, on_stderr=self.on_stderr) + + + def convert_osc(self, text): + for match in self.ANSI_OSC_RE.finditer(text): + start, end = match.span() + text = text[:start] + text[end:] + paramstring, command = match.groups() + if command == BEL: + if paramstring.count(";") == 1: + params = paramstring.split(";") + # 0 - change title and icon (we will only change title) + # 1 - change icon (we don't support this) + # 2 - change title + if params[0] in '02': + winterm.set_title(params[1]) + return text + + + def flush(self): + self.wrapped.flush() diff --git a/utils/python-venv/Lib/site-packages/colorama/initialise.py b/utils/python-venv/Lib/site-packages/colorama/initialise.py new file mode 100644 index 0000000..d5fd4b7 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/initialise.py @@ -0,0 +1,121 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +import atexit +import contextlib +import sys + +from .ansitowin32 import AnsiToWin32 + + +def _wipe_internal_state_for_tests(): + global orig_stdout, orig_stderr + orig_stdout = None + orig_stderr = None + + global wrapped_stdout, wrapped_stderr + wrapped_stdout = None + wrapped_stderr = None + + global atexit_done + atexit_done = False + + global fixed_windows_console + fixed_windows_console = False + + try: + # no-op if it wasn't registered + atexit.unregister(reset_all) + except AttributeError: + # python 2: no atexit.unregister. Oh well, we did our best. + pass + + +def reset_all(): + if AnsiToWin32 is not None: # Issue #74: objects might become None at exit + AnsiToWin32(orig_stdout).reset_all() + + +def init(autoreset=False, convert=None, strip=None, wrap=True): + + if not wrap and any([autoreset, convert, strip]): + raise ValueError('wrap=False conflicts with any other arg=True') + + global wrapped_stdout, wrapped_stderr + global orig_stdout, orig_stderr + + orig_stdout = sys.stdout + orig_stderr = sys.stderr + + if sys.stdout is None: + wrapped_stdout = None + else: + sys.stdout = wrapped_stdout = \ + wrap_stream(orig_stdout, convert, strip, autoreset, wrap) + if sys.stderr is None: + wrapped_stderr = None + else: + sys.stderr = wrapped_stderr = \ + wrap_stream(orig_stderr, convert, strip, autoreset, wrap) + + global atexit_done + if not atexit_done: + atexit.register(reset_all) + atexit_done = True + + +def deinit(): + if orig_stdout is not None: + sys.stdout = orig_stdout + if orig_stderr is not None: + sys.stderr = orig_stderr + + +def just_fix_windows_console(): + global fixed_windows_console + + if sys.platform != "win32": + return + if fixed_windows_console: + return + if wrapped_stdout is not None or wrapped_stderr is not None: + # Someone already ran init() and it did stuff, so we won't second-guess them + return + + # On newer versions of Windows, AnsiToWin32.__init__ will implicitly enable the + # native ANSI support in the console as a side-effect. We only need to actually + # replace sys.stdout/stderr if we're in the old-style conversion mode. + new_stdout = AnsiToWin32(sys.stdout, convert=None, strip=None, autoreset=False) + if new_stdout.convert: + sys.stdout = new_stdout + new_stderr = AnsiToWin32(sys.stderr, convert=None, strip=None, autoreset=False) + if new_stderr.convert: + sys.stderr = new_stderr + + fixed_windows_console = True + +@contextlib.contextmanager +def colorama_text(*args, **kwargs): + init(*args, **kwargs) + try: + yield + finally: + deinit() + + +def reinit(): + if wrapped_stdout is not None: + sys.stdout = wrapped_stdout + if wrapped_stderr is not None: + sys.stderr = wrapped_stderr + + +def wrap_stream(stream, convert, strip, autoreset, wrap): + if wrap: + wrapper = AnsiToWin32(stream, + convert=convert, strip=strip, autoreset=autoreset) + if wrapper.should_wrap(): + stream = wrapper.stream + return stream + + +# Use this for initial setup as well, to reduce code duplication +_wipe_internal_state_for_tests() diff --git a/utils/python-venv/Lib/site-packages/colorama/tests/__init__.py b/utils/python-venv/Lib/site-packages/colorama/tests/__init__.py new file mode 100644 index 0000000..8c5661e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/tests/__init__.py @@ -0,0 +1 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. diff --git a/utils/python-venv/Lib/site-packages/colorama/tests/ansi_test.py b/utils/python-venv/Lib/site-packages/colorama/tests/ansi_test.py new file mode 100644 index 0000000..0a20c80 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/tests/ansi_test.py @@ -0,0 +1,76 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +import sys +from unittest import TestCase, main + +from ..ansi import Back, Fore, Style +from ..ansitowin32 import AnsiToWin32 + +stdout_orig = sys.stdout +stderr_orig = sys.stderr + + +class AnsiTest(TestCase): + + def setUp(self): + # sanity check: stdout should be a file or StringIO object. + # It will only be AnsiToWin32 if init() has previously wrapped it + self.assertNotEqual(type(sys.stdout), AnsiToWin32) + self.assertNotEqual(type(sys.stderr), AnsiToWin32) + + def tearDown(self): + sys.stdout = stdout_orig + sys.stderr = stderr_orig + + + def testForeAttributes(self): + self.assertEqual(Fore.BLACK, '\033[30m') + self.assertEqual(Fore.RED, '\033[31m') + self.assertEqual(Fore.GREEN, '\033[32m') + self.assertEqual(Fore.YELLOW, '\033[33m') + self.assertEqual(Fore.BLUE, '\033[34m') + self.assertEqual(Fore.MAGENTA, '\033[35m') + self.assertEqual(Fore.CYAN, '\033[36m') + self.assertEqual(Fore.WHITE, '\033[37m') + self.assertEqual(Fore.RESET, '\033[39m') + + # Check the light, extended versions. + self.assertEqual(Fore.LIGHTBLACK_EX, '\033[90m') + self.assertEqual(Fore.LIGHTRED_EX, '\033[91m') + self.assertEqual(Fore.LIGHTGREEN_EX, '\033[92m') + self.assertEqual(Fore.LIGHTYELLOW_EX, '\033[93m') + self.assertEqual(Fore.LIGHTBLUE_EX, '\033[94m') + self.assertEqual(Fore.LIGHTMAGENTA_EX, '\033[95m') + self.assertEqual(Fore.LIGHTCYAN_EX, '\033[96m') + self.assertEqual(Fore.LIGHTWHITE_EX, '\033[97m') + + + def testBackAttributes(self): + self.assertEqual(Back.BLACK, '\033[40m') + self.assertEqual(Back.RED, '\033[41m') + self.assertEqual(Back.GREEN, '\033[42m') + self.assertEqual(Back.YELLOW, '\033[43m') + self.assertEqual(Back.BLUE, '\033[44m') + self.assertEqual(Back.MAGENTA, '\033[45m') + self.assertEqual(Back.CYAN, '\033[46m') + self.assertEqual(Back.WHITE, '\033[47m') + self.assertEqual(Back.RESET, '\033[49m') + + # Check the light, extended versions. + self.assertEqual(Back.LIGHTBLACK_EX, '\033[100m') + self.assertEqual(Back.LIGHTRED_EX, '\033[101m') + self.assertEqual(Back.LIGHTGREEN_EX, '\033[102m') + self.assertEqual(Back.LIGHTYELLOW_EX, '\033[103m') + self.assertEqual(Back.LIGHTBLUE_EX, '\033[104m') + self.assertEqual(Back.LIGHTMAGENTA_EX, '\033[105m') + self.assertEqual(Back.LIGHTCYAN_EX, '\033[106m') + self.assertEqual(Back.LIGHTWHITE_EX, '\033[107m') + + + def testStyleAttributes(self): + self.assertEqual(Style.DIM, '\033[2m') + self.assertEqual(Style.NORMAL, '\033[22m') + self.assertEqual(Style.BRIGHT, '\033[1m') + + +if __name__ == '__main__': + main() diff --git a/utils/python-venv/Lib/site-packages/colorama/tests/ansitowin32_test.py b/utils/python-venv/Lib/site-packages/colorama/tests/ansitowin32_test.py new file mode 100644 index 0000000..91ca551 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/tests/ansitowin32_test.py @@ -0,0 +1,294 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +from io import StringIO, TextIOWrapper +from unittest import TestCase, main +try: + from contextlib import ExitStack +except ImportError: + # python 2 + from contextlib2 import ExitStack + +try: + from unittest.mock import MagicMock, Mock, patch +except ImportError: + from mock import MagicMock, Mock, patch + +from ..ansitowin32 import AnsiToWin32, StreamWrapper +from ..win32 import ENABLE_VIRTUAL_TERMINAL_PROCESSING +from .utils import osname + + +class StreamWrapperTest(TestCase): + + def testIsAProxy(self): + mockStream = Mock() + wrapper = StreamWrapper(mockStream, None) + self.assertTrue( wrapper.random_attr is mockStream.random_attr ) + + def testDelegatesWrite(self): + mockStream = Mock() + mockConverter = Mock() + wrapper = StreamWrapper(mockStream, mockConverter) + wrapper.write('hello') + self.assertTrue(mockConverter.write.call_args, (('hello',), {})) + + def testDelegatesContext(self): + mockConverter = Mock() + s = StringIO() + with StreamWrapper(s, mockConverter) as fp: + fp.write(u'hello') + self.assertTrue(s.closed) + + def testProxyNoContextManager(self): + mockStream = MagicMock() + mockStream.__enter__.side_effect = AttributeError() + mockConverter = Mock() + with self.assertRaises(AttributeError) as excinfo: + with StreamWrapper(mockStream, mockConverter) as wrapper: + wrapper.write('hello') + + def test_closed_shouldnt_raise_on_closed_stream(self): + stream = StringIO() + stream.close() + wrapper = StreamWrapper(stream, None) + self.assertEqual(wrapper.closed, True) + + def test_closed_shouldnt_raise_on_detached_stream(self): + stream = TextIOWrapper(StringIO()) + stream.detach() + wrapper = StreamWrapper(stream, None) + self.assertEqual(wrapper.closed, True) + +class AnsiToWin32Test(TestCase): + + def testInit(self): + mockStdout = Mock() + auto = Mock() + stream = AnsiToWin32(mockStdout, autoreset=auto) + self.assertEqual(stream.wrapped, mockStdout) + self.assertEqual(stream.autoreset, auto) + + @patch('colorama.ansitowin32.winterm', None) + @patch('colorama.ansitowin32.winapi_test', lambda *_: True) + def testStripIsTrueOnWindows(self): + with osname('nt'): + mockStdout = Mock() + stream = AnsiToWin32(mockStdout) + self.assertTrue(stream.strip) + + def testStripIsFalseOffWindows(self): + with osname('posix'): + mockStdout = Mock(closed=False) + stream = AnsiToWin32(mockStdout) + self.assertFalse(stream.strip) + + def testWriteStripsAnsi(self): + mockStdout = Mock() + stream = AnsiToWin32(mockStdout) + stream.wrapped = Mock() + stream.write_and_convert = Mock() + stream.strip = True + + stream.write('abc') + + self.assertFalse(stream.wrapped.write.called) + self.assertEqual(stream.write_and_convert.call_args, (('abc',), {})) + + def testWriteDoesNotStripAnsi(self): + mockStdout = Mock() + stream = AnsiToWin32(mockStdout) + stream.wrapped = Mock() + stream.write_and_convert = Mock() + stream.strip = False + stream.convert = False + + stream.write('abc') + + self.assertFalse(stream.write_and_convert.called) + self.assertEqual(stream.wrapped.write.call_args, (('abc',), {})) + + def assert_autoresets(self, convert, autoreset=True): + stream = AnsiToWin32(Mock()) + stream.convert = convert + stream.reset_all = Mock() + stream.autoreset = autoreset + stream.winterm = Mock() + + stream.write('abc') + + self.assertEqual(stream.reset_all.called, autoreset) + + def testWriteAutoresets(self): + self.assert_autoresets(convert=True) + self.assert_autoresets(convert=False) + self.assert_autoresets(convert=True, autoreset=False) + self.assert_autoresets(convert=False, autoreset=False) + + def testWriteAndConvertWritesPlainText(self): + stream = AnsiToWin32(Mock()) + stream.write_and_convert( 'abc' ) + self.assertEqual( stream.wrapped.write.call_args, (('abc',), {}) ) + + def testWriteAndConvertStripsAllValidAnsi(self): + stream = AnsiToWin32(Mock()) + stream.call_win32 = Mock() + data = [ + 'abc\033[mdef', + 'abc\033[0mdef', + 'abc\033[2mdef', + 'abc\033[02mdef', + 'abc\033[002mdef', + 'abc\033[40mdef', + 'abc\033[040mdef', + 'abc\033[0;1mdef', + 'abc\033[40;50mdef', + 'abc\033[50;30;40mdef', + 'abc\033[Adef', + 'abc\033[0Gdef', + 'abc\033[1;20;128Hdef', + ] + for datum in data: + stream.wrapped.write.reset_mock() + stream.write_and_convert( datum ) + self.assertEqual( + [args[0] for args in stream.wrapped.write.call_args_list], + [ ('abc',), ('def',) ] + ) + + def testWriteAndConvertSkipsEmptySnippets(self): + stream = AnsiToWin32(Mock()) + stream.call_win32 = Mock() + stream.write_and_convert( '\033[40m\033[41m' ) + self.assertFalse( stream.wrapped.write.called ) + + def testWriteAndConvertCallsWin32WithParamsAndCommand(self): + stream = AnsiToWin32(Mock()) + stream.convert = True + stream.call_win32 = Mock() + stream.extract_params = Mock(return_value='params') + data = { + 'abc\033[adef': ('a', 'params'), + 'abc\033[;;bdef': ('b', 'params'), + 'abc\033[0cdef': ('c', 'params'), + 'abc\033[;;0;;Gdef': ('G', 'params'), + 'abc\033[1;20;128Hdef': ('H', 'params'), + } + for datum, expected in data.items(): + stream.call_win32.reset_mock() + stream.write_and_convert( datum ) + self.assertEqual( stream.call_win32.call_args[0], expected ) + + def test_reset_all_shouldnt_raise_on_closed_orig_stdout(self): + stream = StringIO() + converter = AnsiToWin32(stream) + stream.close() + + converter.reset_all() + + def test_wrap_shouldnt_raise_on_closed_orig_stdout(self): + stream = StringIO() + stream.close() + with \ + patch("colorama.ansitowin32.os.name", "nt"), \ + patch("colorama.ansitowin32.winapi_test", lambda: True): + converter = AnsiToWin32(stream) + self.assertTrue(converter.strip) + self.assertFalse(converter.convert) + + def test_wrap_shouldnt_raise_on_missing_closed_attr(self): + with \ + patch("colorama.ansitowin32.os.name", "nt"), \ + patch("colorama.ansitowin32.winapi_test", lambda: True): + converter = AnsiToWin32(object()) + self.assertTrue(converter.strip) + self.assertFalse(converter.convert) + + def testExtractParams(self): + stream = AnsiToWin32(Mock()) + data = { + '': (0,), + ';;': (0,), + '2': (2,), + ';;002;;': (2,), + '0;1': (0, 1), + ';;003;;456;;': (3, 456), + '11;22;33;44;55': (11, 22, 33, 44, 55), + } + for datum, expected in data.items(): + self.assertEqual(stream.extract_params('m', datum), expected) + + def testCallWin32UsesLookup(self): + listener = Mock() + stream = AnsiToWin32(listener) + stream.win32_calls = { + 1: (lambda *_, **__: listener(11),), + 2: (lambda *_, **__: listener(22),), + 3: (lambda *_, **__: listener(33),), + } + stream.call_win32('m', (3, 1, 99, 2)) + self.assertEqual( + [a[0][0] for a in listener.call_args_list], + [33, 11, 22] ) + + def test_osc_codes(self): + mockStdout = Mock() + stream = AnsiToWin32(mockStdout, convert=True) + with patch('colorama.ansitowin32.winterm') as winterm: + data = [ + '\033]0\x07', # missing arguments + '\033]0;foo\x08', # wrong OSC command + '\033]0;colorama_test_title\x07', # should work + '\033]1;colorama_test_title\x07', # wrong set command + '\033]2;colorama_test_title\x07', # should work + '\033]' + ';' * 64 + '\x08', # see issue #247 + ] + for code in data: + stream.write(code) + self.assertEqual(winterm.set_title.call_count, 2) + + def test_native_windows_ansi(self): + with ExitStack() as stack: + def p(a, b): + stack.enter_context(patch(a, b, create=True)) + # Pretend to be on Windows + p("colorama.ansitowin32.os.name", "nt") + p("colorama.ansitowin32.winapi_test", lambda: True) + p("colorama.win32.winapi_test", lambda: True) + p("colorama.winterm.win32.windll", "non-None") + p("colorama.winterm.get_osfhandle", lambda _: 1234) + + # Pretend that our mock stream has native ANSI support + p( + "colorama.winterm.win32.GetConsoleMode", + lambda _: ENABLE_VIRTUAL_TERMINAL_PROCESSING, + ) + SetConsoleMode = Mock() + p("colorama.winterm.win32.SetConsoleMode", SetConsoleMode) + + stdout = Mock() + stdout.closed = False + stdout.isatty.return_value = True + stdout.fileno.return_value = 1 + + # Our fake console says it has native vt support, so AnsiToWin32 should + # enable that support and do nothing else. + stream = AnsiToWin32(stdout) + SetConsoleMode.assert_called_with(1234, ENABLE_VIRTUAL_TERMINAL_PROCESSING) + self.assertFalse(stream.strip) + self.assertFalse(stream.convert) + self.assertFalse(stream.should_wrap()) + + # Now let's pretend we're on an old Windows console, that doesn't have + # native ANSI support. + p("colorama.winterm.win32.GetConsoleMode", lambda _: 0) + SetConsoleMode = Mock() + p("colorama.winterm.win32.SetConsoleMode", SetConsoleMode) + + stream = AnsiToWin32(stdout) + SetConsoleMode.assert_called_with(1234, ENABLE_VIRTUAL_TERMINAL_PROCESSING) + self.assertTrue(stream.strip) + self.assertTrue(stream.convert) + self.assertTrue(stream.should_wrap()) + + +if __name__ == '__main__': + main() diff --git a/utils/python-venv/Lib/site-packages/colorama/tests/initialise_test.py b/utils/python-venv/Lib/site-packages/colorama/tests/initialise_test.py new file mode 100644 index 0000000..89f9b07 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/tests/initialise_test.py @@ -0,0 +1,189 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +import sys +from unittest import TestCase, main, skipUnless + +try: + from unittest.mock import patch, Mock +except ImportError: + from mock import patch, Mock + +from ..ansitowin32 import StreamWrapper +from ..initialise import init, just_fix_windows_console, _wipe_internal_state_for_tests +from .utils import osname, replace_by + +orig_stdout = sys.stdout +orig_stderr = sys.stderr + + +class InitTest(TestCase): + + @skipUnless(sys.stdout.isatty(), "sys.stdout is not a tty") + def setUp(self): + # sanity check + self.assertNotWrapped() + + def tearDown(self): + _wipe_internal_state_for_tests() + sys.stdout = orig_stdout + sys.stderr = orig_stderr + + def assertWrapped(self): + self.assertIsNot(sys.stdout, orig_stdout, 'stdout should be wrapped') + self.assertIsNot(sys.stderr, orig_stderr, 'stderr should be wrapped') + self.assertTrue(isinstance(sys.stdout, StreamWrapper), + 'bad stdout wrapper') + self.assertTrue(isinstance(sys.stderr, StreamWrapper), + 'bad stderr wrapper') + + def assertNotWrapped(self): + self.assertIs(sys.stdout, orig_stdout, 'stdout should not be wrapped') + self.assertIs(sys.stderr, orig_stderr, 'stderr should not be wrapped') + + @patch('colorama.initialise.reset_all') + @patch('colorama.ansitowin32.winapi_test', lambda *_: True) + @patch('colorama.ansitowin32.enable_vt_processing', lambda *_: False) + def testInitWrapsOnWindows(self, _): + with osname("nt"): + init() + self.assertWrapped() + + @patch('colorama.initialise.reset_all') + @patch('colorama.ansitowin32.winapi_test', lambda *_: False) + def testInitDoesntWrapOnEmulatedWindows(self, _): + with osname("nt"): + init() + self.assertNotWrapped() + + def testInitDoesntWrapOnNonWindows(self): + with osname("posix"): + init() + self.assertNotWrapped() + + def testInitDoesntWrapIfNone(self): + with replace_by(None): + init() + # We can't use assertNotWrapped here because replace_by(None) + # changes stdout/stderr already. + self.assertIsNone(sys.stdout) + self.assertIsNone(sys.stderr) + + def testInitAutoresetOnWrapsOnAllPlatforms(self): + with osname("posix"): + init(autoreset=True) + self.assertWrapped() + + def testInitWrapOffDoesntWrapOnWindows(self): + with osname("nt"): + init(wrap=False) + self.assertNotWrapped() + + def testInitWrapOffIncompatibleWithAutoresetOn(self): + self.assertRaises(ValueError, lambda: init(autoreset=True, wrap=False)) + + @patch('colorama.win32.SetConsoleTextAttribute') + @patch('colorama.initialise.AnsiToWin32') + def testAutoResetPassedOn(self, mockATW32, _): + with osname("nt"): + init(autoreset=True) + self.assertEqual(len(mockATW32.call_args_list), 2) + self.assertEqual(mockATW32.call_args_list[1][1]['autoreset'], True) + self.assertEqual(mockATW32.call_args_list[0][1]['autoreset'], True) + + @patch('colorama.initialise.AnsiToWin32') + def testAutoResetChangeable(self, mockATW32): + with osname("nt"): + init() + + init(autoreset=True) + self.assertEqual(len(mockATW32.call_args_list), 4) + self.assertEqual(mockATW32.call_args_list[2][1]['autoreset'], True) + self.assertEqual(mockATW32.call_args_list[3][1]['autoreset'], True) + + init() + self.assertEqual(len(mockATW32.call_args_list), 6) + self.assertEqual( + mockATW32.call_args_list[4][1]['autoreset'], False) + self.assertEqual( + mockATW32.call_args_list[5][1]['autoreset'], False) + + + @patch('colorama.initialise.atexit.register') + def testAtexitRegisteredOnlyOnce(self, mockRegister): + init() + self.assertTrue(mockRegister.called) + mockRegister.reset_mock() + init() + self.assertFalse(mockRegister.called) + + +class JustFixWindowsConsoleTest(TestCase): + def _reset(self): + _wipe_internal_state_for_tests() + sys.stdout = orig_stdout + sys.stderr = orig_stderr + + def tearDown(self): + self._reset() + + @patch("colorama.ansitowin32.winapi_test", lambda: True) + def testJustFixWindowsConsole(self): + if sys.platform != "win32": + # just_fix_windows_console should be a no-op + just_fix_windows_console() + self.assertIs(sys.stdout, orig_stdout) + self.assertIs(sys.stderr, orig_stderr) + else: + def fake_std(): + # Emulate stdout=not a tty, stderr=tty + # to check that we handle both cases correctly + stdout = Mock() + stdout.closed = False + stdout.isatty.return_value = False + stdout.fileno.return_value = 1 + sys.stdout = stdout + + stderr = Mock() + stderr.closed = False + stderr.isatty.return_value = True + stderr.fileno.return_value = 2 + sys.stderr = stderr + + for native_ansi in [False, True]: + with patch( + 'colorama.ansitowin32.enable_vt_processing', + lambda *_: native_ansi + ): + self._reset() + fake_std() + + # Regular single-call test + prev_stdout = sys.stdout + prev_stderr = sys.stderr + just_fix_windows_console() + self.assertIs(sys.stdout, prev_stdout) + if native_ansi: + self.assertIs(sys.stderr, prev_stderr) + else: + self.assertIsNot(sys.stderr, prev_stderr) + + # second call without resetting is always a no-op + prev_stdout = sys.stdout + prev_stderr = sys.stderr + just_fix_windows_console() + self.assertIs(sys.stdout, prev_stdout) + self.assertIs(sys.stderr, prev_stderr) + + self._reset() + fake_std() + + # If init() runs first, just_fix_windows_console should be a no-op + init() + prev_stdout = sys.stdout + prev_stderr = sys.stderr + just_fix_windows_console() + self.assertIs(prev_stdout, sys.stdout) + self.assertIs(prev_stderr, sys.stderr) + + +if __name__ == '__main__': + main() diff --git a/utils/python-venv/Lib/site-packages/colorama/tests/isatty_test.py b/utils/python-venv/Lib/site-packages/colorama/tests/isatty_test.py new file mode 100644 index 0000000..0f84e4b --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/tests/isatty_test.py @@ -0,0 +1,57 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +import sys +from unittest import TestCase, main + +from ..ansitowin32 import StreamWrapper, AnsiToWin32 +from .utils import pycharm, replace_by, replace_original_by, StreamTTY, StreamNonTTY + + +def is_a_tty(stream): + return StreamWrapper(stream, None).isatty() + +class IsattyTest(TestCase): + + def test_TTY(self): + tty = StreamTTY() + self.assertTrue(is_a_tty(tty)) + with pycharm(): + self.assertTrue(is_a_tty(tty)) + + def test_nonTTY(self): + non_tty = StreamNonTTY() + self.assertFalse(is_a_tty(non_tty)) + with pycharm(): + self.assertFalse(is_a_tty(non_tty)) + + def test_withPycharm(self): + with pycharm(): + self.assertTrue(is_a_tty(sys.stderr)) + self.assertTrue(is_a_tty(sys.stdout)) + + def test_withPycharmTTYOverride(self): + tty = StreamTTY() + with pycharm(), replace_by(tty): + self.assertTrue(is_a_tty(tty)) + + def test_withPycharmNonTTYOverride(self): + non_tty = StreamNonTTY() + with pycharm(), replace_by(non_tty): + self.assertFalse(is_a_tty(non_tty)) + + def test_withPycharmNoneOverride(self): + with pycharm(): + with replace_by(None), replace_original_by(None): + self.assertFalse(is_a_tty(None)) + self.assertFalse(is_a_tty(StreamNonTTY())) + self.assertTrue(is_a_tty(StreamTTY())) + + def test_withPycharmStreamWrapped(self): + with pycharm(): + self.assertTrue(AnsiToWin32(StreamTTY()).stream.isatty()) + self.assertFalse(AnsiToWin32(StreamNonTTY()).stream.isatty()) + self.assertTrue(AnsiToWin32(sys.stdout).stream.isatty()) + self.assertTrue(AnsiToWin32(sys.stderr).stream.isatty()) + + +if __name__ == '__main__': + main() diff --git a/utils/python-venv/Lib/site-packages/colorama/tests/utils.py b/utils/python-venv/Lib/site-packages/colorama/tests/utils.py new file mode 100644 index 0000000..472fafb --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/tests/utils.py @@ -0,0 +1,49 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +from contextlib import contextmanager +from io import StringIO +import sys +import os + + +class StreamTTY(StringIO): + def isatty(self): + return True + +class StreamNonTTY(StringIO): + def isatty(self): + return False + +@contextmanager +def osname(name): + orig = os.name + os.name = name + yield + os.name = orig + +@contextmanager +def replace_by(stream): + orig_stdout = sys.stdout + orig_stderr = sys.stderr + sys.stdout = stream + sys.stderr = stream + yield + sys.stdout = orig_stdout + sys.stderr = orig_stderr + +@contextmanager +def replace_original_by(stream): + orig_stdout = sys.__stdout__ + orig_stderr = sys.__stderr__ + sys.__stdout__ = stream + sys.__stderr__ = stream + yield + sys.__stdout__ = orig_stdout + sys.__stderr__ = orig_stderr + +@contextmanager +def pycharm(): + os.environ["PYCHARM_HOSTED"] = "1" + non_tty = StreamNonTTY() + with replace_by(non_tty), replace_original_by(non_tty): + yield + del os.environ["PYCHARM_HOSTED"] diff --git a/utils/python-venv/Lib/site-packages/colorama/tests/winterm_test.py b/utils/python-venv/Lib/site-packages/colorama/tests/winterm_test.py new file mode 100644 index 0000000..d0955f9 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/tests/winterm_test.py @@ -0,0 +1,131 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +import sys +from unittest import TestCase, main, skipUnless + +try: + from unittest.mock import Mock, patch +except ImportError: + from mock import Mock, patch + +from ..winterm import WinColor, WinStyle, WinTerm + + +class WinTermTest(TestCase): + + @patch('colorama.winterm.win32') + def testInit(self, mockWin32): + mockAttr = Mock() + mockAttr.wAttributes = 7 + 6 * 16 + 8 + mockWin32.GetConsoleScreenBufferInfo.return_value = mockAttr + term = WinTerm() + self.assertEqual(term._fore, 7) + self.assertEqual(term._back, 6) + self.assertEqual(term._style, 8) + + @skipUnless(sys.platform.startswith("win"), "requires Windows") + def testGetAttrs(self): + term = WinTerm() + + term._fore = 0 + term._back = 0 + term._style = 0 + self.assertEqual(term.get_attrs(), 0) + + term._fore = WinColor.YELLOW + self.assertEqual(term.get_attrs(), WinColor.YELLOW) + + term._back = WinColor.MAGENTA + self.assertEqual( + term.get_attrs(), + WinColor.YELLOW + WinColor.MAGENTA * 16) + + term._style = WinStyle.BRIGHT + self.assertEqual( + term.get_attrs(), + WinColor.YELLOW + WinColor.MAGENTA * 16 + WinStyle.BRIGHT) + + @patch('colorama.winterm.win32') + def testResetAll(self, mockWin32): + mockAttr = Mock() + mockAttr.wAttributes = 1 + 2 * 16 + 8 + mockWin32.GetConsoleScreenBufferInfo.return_value = mockAttr + term = WinTerm() + + term.set_console = Mock() + term._fore = -1 + term._back = -1 + term._style = -1 + + term.reset_all() + + self.assertEqual(term._fore, 1) + self.assertEqual(term._back, 2) + self.assertEqual(term._style, 8) + self.assertEqual(term.set_console.called, True) + + @skipUnless(sys.platform.startswith("win"), "requires Windows") + def testFore(self): + term = WinTerm() + term.set_console = Mock() + term._fore = 0 + + term.fore(5) + + self.assertEqual(term._fore, 5) + self.assertEqual(term.set_console.called, True) + + @skipUnless(sys.platform.startswith("win"), "requires Windows") + def testBack(self): + term = WinTerm() + term.set_console = Mock() + term._back = 0 + + term.back(5) + + self.assertEqual(term._back, 5) + self.assertEqual(term.set_console.called, True) + + @skipUnless(sys.platform.startswith("win"), "requires Windows") + def testStyle(self): + term = WinTerm() + term.set_console = Mock() + term._style = 0 + + term.style(22) + + self.assertEqual(term._style, 22) + self.assertEqual(term.set_console.called, True) + + @patch('colorama.winterm.win32') + def testSetConsole(self, mockWin32): + mockAttr = Mock() + mockAttr.wAttributes = 0 + mockWin32.GetConsoleScreenBufferInfo.return_value = mockAttr + term = WinTerm() + term.windll = Mock() + + term.set_console() + + self.assertEqual( + mockWin32.SetConsoleTextAttribute.call_args, + ((mockWin32.STDOUT, term.get_attrs()), {}) + ) + + @patch('colorama.winterm.win32') + def testSetConsoleOnStderr(self, mockWin32): + mockAttr = Mock() + mockAttr.wAttributes = 0 + mockWin32.GetConsoleScreenBufferInfo.return_value = mockAttr + term = WinTerm() + term.windll = Mock() + + term.set_console(on_stderr=True) + + self.assertEqual( + mockWin32.SetConsoleTextAttribute.call_args, + ((mockWin32.STDERR, term.get_attrs()), {}) + ) + + +if __name__ == '__main__': + main() diff --git a/utils/python-venv/Lib/site-packages/colorama/win32.py b/utils/python-venv/Lib/site-packages/colorama/win32.py new file mode 100644 index 0000000..841b0e2 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/win32.py @@ -0,0 +1,180 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. + +# from winbase.h +STDOUT = -11 +STDERR = -12 + +ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x0004 + +try: + import ctypes + from ctypes import LibraryLoader + windll = LibraryLoader(ctypes.WinDLL) + from ctypes import wintypes +except (AttributeError, ImportError): + windll = None + SetConsoleTextAttribute = lambda *_: None + winapi_test = lambda *_: None +else: + from ctypes import byref, Structure, c_char, POINTER + + COORD = wintypes._COORD + + class CONSOLE_SCREEN_BUFFER_INFO(Structure): + """struct in wincon.h.""" + _fields_ = [ + ("dwSize", COORD), + ("dwCursorPosition", COORD), + ("wAttributes", wintypes.WORD), + ("srWindow", wintypes.SMALL_RECT), + ("dwMaximumWindowSize", COORD), + ] + def __str__(self): + return '(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d)' % ( + self.dwSize.Y, self.dwSize.X + , self.dwCursorPosition.Y, self.dwCursorPosition.X + , self.wAttributes + , self.srWindow.Top, self.srWindow.Left, self.srWindow.Bottom, self.srWindow.Right + , self.dwMaximumWindowSize.Y, self.dwMaximumWindowSize.X + ) + + _GetStdHandle = windll.kernel32.GetStdHandle + _GetStdHandle.argtypes = [ + wintypes.DWORD, + ] + _GetStdHandle.restype = wintypes.HANDLE + + _GetConsoleScreenBufferInfo = windll.kernel32.GetConsoleScreenBufferInfo + _GetConsoleScreenBufferInfo.argtypes = [ + wintypes.HANDLE, + POINTER(CONSOLE_SCREEN_BUFFER_INFO), + ] + _GetConsoleScreenBufferInfo.restype = wintypes.BOOL + + _SetConsoleTextAttribute = windll.kernel32.SetConsoleTextAttribute + _SetConsoleTextAttribute.argtypes = [ + wintypes.HANDLE, + wintypes.WORD, + ] + _SetConsoleTextAttribute.restype = wintypes.BOOL + + _SetConsoleCursorPosition = windll.kernel32.SetConsoleCursorPosition + _SetConsoleCursorPosition.argtypes = [ + wintypes.HANDLE, + COORD, + ] + _SetConsoleCursorPosition.restype = wintypes.BOOL + + _FillConsoleOutputCharacterA = windll.kernel32.FillConsoleOutputCharacterA + _FillConsoleOutputCharacterA.argtypes = [ + wintypes.HANDLE, + c_char, + wintypes.DWORD, + COORD, + POINTER(wintypes.DWORD), + ] + _FillConsoleOutputCharacterA.restype = wintypes.BOOL + + _FillConsoleOutputAttribute = windll.kernel32.FillConsoleOutputAttribute + _FillConsoleOutputAttribute.argtypes = [ + wintypes.HANDLE, + wintypes.WORD, + wintypes.DWORD, + COORD, + POINTER(wintypes.DWORD), + ] + _FillConsoleOutputAttribute.restype = wintypes.BOOL + + _SetConsoleTitleW = windll.kernel32.SetConsoleTitleW + _SetConsoleTitleW.argtypes = [ + wintypes.LPCWSTR + ] + _SetConsoleTitleW.restype = wintypes.BOOL + + _GetConsoleMode = windll.kernel32.GetConsoleMode + _GetConsoleMode.argtypes = [ + wintypes.HANDLE, + POINTER(wintypes.DWORD) + ] + _GetConsoleMode.restype = wintypes.BOOL + + _SetConsoleMode = windll.kernel32.SetConsoleMode + _SetConsoleMode.argtypes = [ + wintypes.HANDLE, + wintypes.DWORD + ] + _SetConsoleMode.restype = wintypes.BOOL + + def _winapi_test(handle): + csbi = CONSOLE_SCREEN_BUFFER_INFO() + success = _GetConsoleScreenBufferInfo( + handle, byref(csbi)) + return bool(success) + + def winapi_test(): + return any(_winapi_test(h) for h in + (_GetStdHandle(STDOUT), _GetStdHandle(STDERR))) + + def GetConsoleScreenBufferInfo(stream_id=STDOUT): + handle = _GetStdHandle(stream_id) + csbi = CONSOLE_SCREEN_BUFFER_INFO() + success = _GetConsoleScreenBufferInfo( + handle, byref(csbi)) + return csbi + + def SetConsoleTextAttribute(stream_id, attrs): + handle = _GetStdHandle(stream_id) + return _SetConsoleTextAttribute(handle, attrs) + + def SetConsoleCursorPosition(stream_id, position, adjust=True): + position = COORD(*position) + # If the position is out of range, do nothing. + if position.Y <= 0 or position.X <= 0: + return + # Adjust for Windows' SetConsoleCursorPosition: + # 1. being 0-based, while ANSI is 1-based. + # 2. expecting (x,y), while ANSI uses (y,x). + adjusted_position = COORD(position.Y - 1, position.X - 1) + if adjust: + # Adjust for viewport's scroll position + sr = GetConsoleScreenBufferInfo(STDOUT).srWindow + adjusted_position.Y += sr.Top + adjusted_position.X += sr.Left + # Resume normal processing + handle = _GetStdHandle(stream_id) + return _SetConsoleCursorPosition(handle, adjusted_position) + + def FillConsoleOutputCharacter(stream_id, char, length, start): + handle = _GetStdHandle(stream_id) + char = c_char(char.encode()) + length = wintypes.DWORD(length) + num_written = wintypes.DWORD(0) + # Note that this is hard-coded for ANSI (vs wide) bytes. + success = _FillConsoleOutputCharacterA( + handle, char, length, start, byref(num_written)) + return num_written.value + + def FillConsoleOutputAttribute(stream_id, attr, length, start): + ''' FillConsoleOutputAttribute( hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten )''' + handle = _GetStdHandle(stream_id) + attribute = wintypes.WORD(attr) + length = wintypes.DWORD(length) + num_written = wintypes.DWORD(0) + # Note that this is hard-coded for ANSI (vs wide) bytes. + return _FillConsoleOutputAttribute( + handle, attribute, length, start, byref(num_written)) + + def SetConsoleTitle(title): + return _SetConsoleTitleW(title) + + def GetConsoleMode(handle): + mode = wintypes.DWORD() + success = _GetConsoleMode(handle, byref(mode)) + if not success: + raise ctypes.WinError() + return mode.value + + def SetConsoleMode(handle, mode): + success = _SetConsoleMode(handle, mode) + if not success: + raise ctypes.WinError() diff --git a/utils/python-venv/Lib/site-packages/colorama/winterm.py b/utils/python-venv/Lib/site-packages/colorama/winterm.py new file mode 100644 index 0000000..aad867e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/colorama/winterm.py @@ -0,0 +1,195 @@ +# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file. +try: + from msvcrt import get_osfhandle +except ImportError: + def get_osfhandle(_): + raise OSError("This isn't windows!") + + +from . import win32 + +# from wincon.h +class WinColor(object): + BLACK = 0 + BLUE = 1 + GREEN = 2 + CYAN = 3 + RED = 4 + MAGENTA = 5 + YELLOW = 6 + GREY = 7 + +# from wincon.h +class WinStyle(object): + NORMAL = 0x00 # dim text, dim background + BRIGHT = 0x08 # bright text, dim background + BRIGHT_BACKGROUND = 0x80 # dim text, bright background + +class WinTerm(object): + + def __init__(self): + self._default = win32.GetConsoleScreenBufferInfo(win32.STDOUT).wAttributes + self.set_attrs(self._default) + self._default_fore = self._fore + self._default_back = self._back + self._default_style = self._style + # In order to emulate LIGHT_EX in windows, we borrow the BRIGHT style. + # So that LIGHT_EX colors and BRIGHT style do not clobber each other, + # we track them separately, since LIGHT_EX is overwritten by Fore/Back + # and BRIGHT is overwritten by Style codes. + self._light = 0 + + def get_attrs(self): + return self._fore + self._back * 16 + (self._style | self._light) + + def set_attrs(self, value): + self._fore = value & 7 + self._back = (value >> 4) & 7 + self._style = value & (WinStyle.BRIGHT | WinStyle.BRIGHT_BACKGROUND) + + def reset_all(self, on_stderr=None): + self.set_attrs(self._default) + self.set_console(attrs=self._default) + self._light = 0 + + def fore(self, fore=None, light=False, on_stderr=False): + if fore is None: + fore = self._default_fore + self._fore = fore + # Emulate LIGHT_EX with BRIGHT Style + if light: + self._light |= WinStyle.BRIGHT + else: + self._light &= ~WinStyle.BRIGHT + self.set_console(on_stderr=on_stderr) + + def back(self, back=None, light=False, on_stderr=False): + if back is None: + back = self._default_back + self._back = back + # Emulate LIGHT_EX with BRIGHT_BACKGROUND Style + if light: + self._light |= WinStyle.BRIGHT_BACKGROUND + else: + self._light &= ~WinStyle.BRIGHT_BACKGROUND + self.set_console(on_stderr=on_stderr) + + def style(self, style=None, on_stderr=False): + if style is None: + style = self._default_style + self._style = style + self.set_console(on_stderr=on_stderr) + + def set_console(self, attrs=None, on_stderr=False): + if attrs is None: + attrs = self.get_attrs() + handle = win32.STDOUT + if on_stderr: + handle = win32.STDERR + win32.SetConsoleTextAttribute(handle, attrs) + + def get_position(self, handle): + position = win32.GetConsoleScreenBufferInfo(handle).dwCursorPosition + # Because Windows coordinates are 0-based, + # and win32.SetConsoleCursorPosition expects 1-based. + position.X += 1 + position.Y += 1 + return position + + def set_cursor_position(self, position=None, on_stderr=False): + if position is None: + # I'm not currently tracking the position, so there is no default. + # position = self.get_position() + return + handle = win32.STDOUT + if on_stderr: + handle = win32.STDERR + win32.SetConsoleCursorPosition(handle, position) + + def cursor_adjust(self, x, y, on_stderr=False): + handle = win32.STDOUT + if on_stderr: + handle = win32.STDERR + position = self.get_position(handle) + adjusted_position = (position.Y + y, position.X + x) + win32.SetConsoleCursorPosition(handle, adjusted_position, adjust=False) + + def erase_screen(self, mode=0, on_stderr=False): + # 0 should clear from the cursor to the end of the screen. + # 1 should clear from the cursor to the beginning of the screen. + # 2 should clear the entire screen, and move cursor to (1,1) + handle = win32.STDOUT + if on_stderr: + handle = win32.STDERR + csbi = win32.GetConsoleScreenBufferInfo(handle) + # get the number of character cells in the current buffer + cells_in_screen = csbi.dwSize.X * csbi.dwSize.Y + # get number of character cells before current cursor position + cells_before_cursor = csbi.dwSize.X * csbi.dwCursorPosition.Y + csbi.dwCursorPosition.X + if mode == 0: + from_coord = csbi.dwCursorPosition + cells_to_erase = cells_in_screen - cells_before_cursor + elif mode == 1: + from_coord = win32.COORD(0, 0) + cells_to_erase = cells_before_cursor + elif mode == 2: + from_coord = win32.COORD(0, 0) + cells_to_erase = cells_in_screen + else: + # invalid mode + return + # fill the entire screen with blanks + win32.FillConsoleOutputCharacter(handle, ' ', cells_to_erase, from_coord) + # now set the buffer's attributes accordingly + win32.FillConsoleOutputAttribute(handle, self.get_attrs(), cells_to_erase, from_coord) + if mode == 2: + # put the cursor where needed + win32.SetConsoleCursorPosition(handle, (1, 1)) + + def erase_line(self, mode=0, on_stderr=False): + # 0 should clear from the cursor to the end of the line. + # 1 should clear from the cursor to the beginning of the line. + # 2 should clear the entire line. + handle = win32.STDOUT + if on_stderr: + handle = win32.STDERR + csbi = win32.GetConsoleScreenBufferInfo(handle) + if mode == 0: + from_coord = csbi.dwCursorPosition + cells_to_erase = csbi.dwSize.X - csbi.dwCursorPosition.X + elif mode == 1: + from_coord = win32.COORD(0, csbi.dwCursorPosition.Y) + cells_to_erase = csbi.dwCursorPosition.X + elif mode == 2: + from_coord = win32.COORD(0, csbi.dwCursorPosition.Y) + cells_to_erase = csbi.dwSize.X + else: + # invalid mode + return + # fill the entire screen with blanks + win32.FillConsoleOutputCharacter(handle, ' ', cells_to_erase, from_coord) + # now set the buffer's attributes accordingly + win32.FillConsoleOutputAttribute(handle, self.get_attrs(), cells_to_erase, from_coord) + + def set_title(self, title): + win32.SetConsoleTitle(title) + + +def enable_vt_processing(fd): + if win32.windll is None or not win32.winapi_test(): + return False + + try: + handle = get_osfhandle(fd) + mode = win32.GetConsoleMode(handle) + win32.SetConsoleMode( + handle, + mode | win32.ENABLE_VIRTUAL_TERMINAL_PROCESSING, + ) + + mode = win32.GetConsoleMode(handle) + if mode & win32.ENABLE_VIRTUAL_TERMINAL_PROCESSING: + return True + # Can get TypeError in testsuite where 'fd' is a Mock() + except (OSError, TypeError): + return False diff --git a/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/INSTALLER b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/INSTALLER new file mode 100644 index 0000000..a1b589e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/LICENSE.txt b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/LICENSE.txt new file mode 100644 index 0000000..f433b1a --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/LICENSE.txt @@ -0,0 +1,177 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +.. For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +=========== +Coverage.py +=========== + +Code coverage testing for Python. + +.. image:: https://raw.githubusercontent.com/vshymanskyy/StandWithUkraine/main/banner2-direct.svg + :target: https://vshymanskyy.github.io/StandWithUkraine + :alt: Stand with Ukraine + +------------- + +| |license| |versions| |status| +| |test-status| |quality-status| |docs| |metacov| +| |kit| |downloads| |format| |repos| +| |stars| |forks| |contributors| +| |tidelift| |core-infrastructure| |open-ssf| +| |sponsor| |twitter-coveragepy| |twitter-nedbat| + +Coverage.py measures code coverage, typically during test execution. It uses +the code analysis tools and tracing hooks provided in the Python standard +library to determine which lines are executable, and which have been executed. + +Coverage.py runs on these versions of Python: + +.. PYVERSIONS + +* CPython 3.7 through 3.11.0 rc2. +* PyPy3 7.3.8. + +Documentation is on `Read the Docs`_. Code repository and issue tracker are on +`GitHub`_. + +.. _Read the Docs: https://coverage.readthedocs.io/ +.. _GitHub: https://github.com/nedbat/coveragepy + + +**New in 6.x:** dropped support for Python 2.7, 3.5, and 3.6; +write data on SIGTERM; +added support for 3.10 match/case statements. + + +For Enterprise +-------------- + +.. |tideliftlogo| image:: https://nedbatchelder.com/pix/Tidelift_Logo_small.png + :alt: Tidelift + :target: https://tidelift.com/subscription/pkg/pypi-coverage?utm_source=pypi-coverage&utm_medium=referral&utm_campaign=readme + +.. list-table:: + :widths: 10 100 + + * - |tideliftlogo| + - `Available as part of the Tidelift Subscription. `_ + Coverage and thousands of other packages are working with + Tidelift to deliver one enterprise subscription that covers all of the open + source you use. If you want the flexibility of open source and the confidence + of commercial-grade software, this is for you. + `Learn more. `_ + + +Getting Started +--------------- + +See the `Quick Start section`_ of the docs. + +.. _Quick Start section: https://coverage.readthedocs.io/#quick-start + + +Change history +-------------- + +The complete history of changes is on the `change history page`_. + +.. _change history page: https://coverage.readthedocs.io/en/latest/changes.html + + +Code of Conduct +--------------- + +Everyone participating in the coverage.py project is expected to treat other +people with respect and to follow the guidelines articulated in the `Python +Community Code of Conduct`_. + +.. _Python Community Code of Conduct: https://www.python.org/psf/codeofconduct/ + + +Contributing +------------ + +See the `Contributing section`_ of the docs. + +.. _Contributing section: https://coverage.readthedocs.io/en/latest/contributing.html + + +Security +-------- + +To report a security vulnerability, please use the `Tidelift security +contact`_. Tidelift will coordinate the fix and disclosure. + +.. _Tidelift security contact: https://tidelift.com/security + + +License +------- + +Licensed under the `Apache 2.0 License`_. For details, see `NOTICE.txt`_. + +.. _Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0 +.. _NOTICE.txt: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + + +.. |test-status| image:: https://github.com/nedbat/coveragepy/actions/workflows/testsuite.yml/badge.svg?branch=master&event=push + :target: https://github.com/nedbat/coveragepy/actions/workflows/testsuite.yml + :alt: Test suite status +.. |quality-status| image:: https://github.com/nedbat/coveragepy/actions/workflows/quality.yml/badge.svg?branch=master&event=push + :target: https://github.com/nedbat/coveragepy/actions/workflows/quality.yml + :alt: Quality check status +.. |docs| image:: https://readthedocs.org/projects/coverage/badge/?version=latest&style=flat + :target: https://coverage.readthedocs.io/ + :alt: Documentation +.. |kit| image:: https://badge.fury.io/py/coverage.svg + :target: https://pypi.org/project/coverage/ + :alt: PyPI status +.. |format| image:: https://img.shields.io/pypi/format/coverage.svg + :target: https://pypi.org/project/coverage/ + :alt: Kit format +.. |downloads| image:: https://img.shields.io/pypi/dw/coverage.svg + :target: https://pypi.org/project/coverage/ + :alt: Weekly PyPI downloads +.. |versions| image:: https://img.shields.io/pypi/pyversions/coverage.svg?logo=python&logoColor=FBE072 + :target: https://pypi.org/project/coverage/ + :alt: Python versions supported +.. |status| image:: https://img.shields.io/pypi/status/coverage.svg + :target: https://pypi.org/project/coverage/ + :alt: Package stability +.. |license| image:: https://img.shields.io/pypi/l/coverage.svg + :target: https://pypi.org/project/coverage/ + :alt: License +.. |metacov| image:: https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/nedbat/8c6980f77988a327348f9b02bbaf67f5/raw/metacov.json + :target: https://nedbat.github.io/coverage-reports/latest.html + :alt: Coverage reports +.. |repos| image:: https://repology.org/badge/tiny-repos/python:coverage.svg + :target: https://repology.org/project/python:coverage/versions + :alt: Packaging status +.. |tidelift| image:: https://tidelift.com/badges/package/pypi/coverage + :target: https://tidelift.com/subscription/pkg/pypi-coverage?utm_source=pypi-coverage&utm_medium=referral&utm_campaign=readme + :alt: Tidelift +.. |stars| image:: https://img.shields.io/github/stars/nedbat/coveragepy.svg?logo=github + :target: https://github.com/nedbat/coveragepy/stargazers + :alt: Github stars +.. |forks| image:: https://img.shields.io/github/forks/nedbat/coveragepy.svg?logo=github + :target: https://github.com/nedbat/coveragepy/network/members + :alt: Github forks +.. |contributors| image:: https://img.shields.io/github/contributors/nedbat/coveragepy.svg?logo=github + :target: https://github.com/nedbat/coveragepy/graphs/contributors + :alt: Contributors +.. |twitter-coveragepy| image:: https://img.shields.io/twitter/follow/coveragepy.svg?label=coveragepy&style=flat&logo=twitter&logoColor=4FADFF + :target: https://twitter.com/coveragepy + :alt: coverage.py on Twitter +.. |twitter-nedbat| image:: https://img.shields.io/twitter/follow/nedbat.svg?label=nedbat&style=flat&logo=twitter&logoColor=4FADFF + :target: https://twitter.com/nedbat + :alt: nedbat on Twitter +.. |sponsor| image:: https://img.shields.io/badge/%E2%9D%A4-Sponsor%20me-brightgreen?style=flat&logo=GitHub + :target: https://github.com/sponsors/nedbat + :alt: Sponsor me on GitHub +.. |core-infrastructure| image:: https://bestpractices.coreinfrastructure.org/projects/6412/badge + :target: https://bestpractices.coreinfrastructure.org/projects/6412 + :alt: Core Infrastructure Initiative: passing +.. |open-ssf| image:: https://api.securityscorecards.dev/projects/github.com/nedbat/coveragepy/badge + :target: https://deps.dev/pypi/coverage + :alt: OpenSSF Scorecard diff --git 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a/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/WHEEL b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/WHEEL new file mode 100644 index 0000000..93f1ef4 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.37.1) +Root-Is-Purelib: false +Tag: cp310-cp310-win_amd64 + diff --git a/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/entry_points.txt b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/entry_points.txt new file mode 100644 index 0000000..36708a5 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/entry_points.txt @@ -0,0 +1,4 @@ +[console_scripts] +coverage = coverage.cmdline:main +coverage-3.10 = coverage.cmdline:main +coverage3 = coverage.cmdline:main diff --git a/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/top_level.txt b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/top_level.txt new file mode 100644 index 0000000..4ebc8ae --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage-6.5.0.dist-info/top_level.txt @@ -0,0 +1 @@ +coverage diff --git a/utils/python-venv/Lib/site-packages/coverage/__init__.py b/utils/python-venv/Lib/site-packages/coverage/__init__.py new file mode 100644 index 0000000..429a7bd --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/__init__.py @@ -0,0 +1,36 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Code coverage measurement for Python. + +Ned Batchelder +https://nedbatchelder.com/code/coverage + +""" + +import sys + +from coverage.version import __version__, __url__, version_info + +from coverage.control import Coverage, process_startup +from coverage.data import CoverageData +from coverage.exceptions import CoverageException +from coverage.plugin import CoveragePlugin, FileTracer, FileReporter +from coverage.pytracer import PyTracer + +# Backward compatibility. +coverage = Coverage + +# On Windows, we encode and decode deep enough that something goes wrong and +# the encodings.utf_8 module is loaded and then unloaded, I don't know why. +# Adding a reference here prevents it from being unloaded. Yuk. +import encodings.utf_8 # pylint: disable=wrong-import-position, wrong-import-order + +# Because of the "from coverage.control import fooey" lines at the top of the +# file, there's an entry for coverage.coverage in sys.modules, mapped to None. +# This makes some inspection tools (like pydoc) unable to find the class +# coverage.coverage. So remove that entry. +try: + del sys.modules['coverage.coverage'] +except KeyError: + pass diff --git a/utils/python-venv/Lib/site-packages/coverage/__main__.py b/utils/python-venv/Lib/site-packages/coverage/__main__.py new file mode 100644 index 0000000..79aa4e2 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/__main__.py @@ -0,0 +1,8 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Coverage.py's main entry point.""" + +import sys +from coverage.cmdline import main +sys.exit(main()) diff --git a/utils/python-venv/Lib/site-packages/coverage/annotate.py b/utils/python-venv/Lib/site-packages/coverage/annotate.py new file mode 100644 index 0000000..07ff644 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/annotate.py @@ -0,0 +1,104 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Source file annotation for coverage.py.""" + +import os +import re + +from coverage.files import flat_rootname +from coverage.misc import ensure_dir, isolate_module +from coverage.report import get_analysis_to_report + +os = isolate_module(os) + + +class AnnotateReporter: + """Generate annotated source files showing line coverage. + + This reporter creates annotated copies of the measured source files. Each + .py file is copied as a .py,cover file, with a left-hand margin annotating + each line:: + + > def h(x): + - if 0: #pragma: no cover + - pass + > if x == 1: + ! a = 1 + > else: + > a = 2 + + > h(2) + + Executed lines use '>', lines not executed use '!', lines excluded from + consideration use '-'. + + """ + + def __init__(self, coverage): + self.coverage = coverage + self.config = self.coverage.config + self.directory = None + + blank_re = re.compile(r"\s*(#|$)") + else_re = re.compile(r"\s*else\s*:\s*(#|$)") + + def report(self, morfs, directory=None): + """Run the report. + + See `coverage.report()` for arguments. + + """ + self.directory = directory + self.coverage.get_data() + for fr, analysis in get_analysis_to_report(self.coverage, morfs): + self.annotate_file(fr, analysis) + + def annotate_file(self, fr, analysis): + """Annotate a single file. + + `fr` is the FileReporter for the file to annotate. + + """ + statements = sorted(analysis.statements) + missing = sorted(analysis.missing) + excluded = sorted(analysis.excluded) + + if self.directory: + ensure_dir(self.directory) + dest_file = os.path.join(self.directory, flat_rootname(fr.relative_filename())) + if dest_file.endswith("_py"): + dest_file = dest_file[:-3] + ".py" + dest_file += ",cover" + else: + dest_file = fr.filename + ",cover" + + with open(dest_file, 'w', encoding='utf-8') as dest: + i = j = 0 + covered = True + source = fr.source() + for lineno, line in enumerate(source.splitlines(True), start=1): + while i < len(statements) and statements[i] < lineno: + i += 1 + while j < len(missing) and missing[j] < lineno: + j += 1 + if i < len(statements) and statements[i] == lineno: + covered = j >= len(missing) or missing[j] > lineno + if self.blank_re.match(line): + dest.write(' ') + elif self.else_re.match(line): + # Special logic for lines containing only 'else:'. + if j >= len(missing): + dest.write('> ') + elif statements[i] == missing[j]: + dest.write('! ') + else: + dest.write('> ') + elif lineno in excluded: + dest.write('- ') + elif covered: + dest.write('> ') + else: + dest.write('! ') + + dest.write(line) diff --git a/utils/python-venv/Lib/site-packages/coverage/bytecode.py b/utils/python-venv/Lib/site-packages/coverage/bytecode.py new file mode 100644 index 0000000..ceb18cf --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/bytecode.py @@ -0,0 +1,19 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Bytecode manipulation for coverage.py""" + +import types + + +def code_objects(code): + """Iterate over all the code objects in `code`.""" + stack = [code] + while stack: + # We're going to return the code object on the stack, but first + # push its children for later returning. + code = stack.pop() + for c in code.co_consts: + if isinstance(c, types.CodeType): + stack.append(c) + yield code diff --git a/utils/python-venv/Lib/site-packages/coverage/cmdline.py b/utils/python-venv/Lib/site-packages/coverage/cmdline.py new file mode 100644 index 0000000..dbf66e0 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/cmdline.py @@ -0,0 +1,980 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Command-line support for coverage.py.""" + +import glob +import optparse # pylint: disable=deprecated-module +import os +import os.path +import shlex +import sys +import textwrap +import traceback + +import coverage +from coverage import Coverage +from coverage import env +from coverage.collector import CTracer +from coverage.config import CoverageConfig +from coverage.control import DEFAULT_DATAFILE +from coverage.data import combinable_files, debug_data_file +from coverage.debug import info_header, short_stack, write_formatted_info +from coverage.exceptions import _BaseCoverageException, _ExceptionDuringRun, NoSource +from coverage.execfile import PyRunner +from coverage.results import Numbers, should_fail_under + +# When adding to this file, alphabetization is important. Look for +# "alphabetize" comments throughout. + +class Opts: + """A namespace class for individual options we'll build parsers from.""" + + # Keep these entries alphabetized (roughly) by the option name as it + # appears on the command line. + + append = optparse.make_option( + '-a', '--append', action='store_true', + help="Append coverage data to .coverage, otherwise it starts clean each time.", + ) + keep = optparse.make_option( + '', '--keep', action='store_true', + help="Keep original coverage files, otherwise they are deleted.", + ) + branch = optparse.make_option( + '', '--branch', action='store_true', + help="Measure branch coverage in addition to statement coverage.", + ) + concurrency = optparse.make_option( + '', '--concurrency', action='store', metavar="LIBS", + help=( + "Properly measure code using a concurrency library. " + + "Valid values are: {}, or a comma-list of them." + ).format(", ".join(sorted(CoverageConfig.CONCURRENCY_CHOICES))), + ) + context = optparse.make_option( + '', '--context', action='store', metavar="LABEL", + help="The context label to record for this coverage run.", + ) + contexts = optparse.make_option( + '', '--contexts', action='store', metavar="REGEX1,REGEX2,...", + help=( + "Only display data from lines covered in the given contexts. " + + "Accepts Python regexes, which must be quoted." + ), + ) + combine_datafile = optparse.make_option( + '', '--data-file', action='store', metavar="DATAFILE", + help=( + "Base name of the data files to operate on. " + + "Defaults to '.coverage'. [env: COVERAGE_FILE]" + ), + ) + input_datafile = optparse.make_option( + '', '--data-file', action='store', metavar="INFILE", + help=( + "Read coverage data for report generation from this file. " + + "Defaults to '.coverage'. [env: COVERAGE_FILE]" + ), + ) + output_datafile = optparse.make_option( + '', '--data-file', action='store', metavar="OUTFILE", + help=( + "Write the recorded coverage data to this file. " + + "Defaults to '.coverage'. [env: COVERAGE_FILE]" + ), + ) + debug = optparse.make_option( + '', '--debug', action='store', metavar="OPTS", + help="Debug options, separated by commas. [env: COVERAGE_DEBUG]", + ) + directory = optparse.make_option( + '-d', '--directory', action='store', metavar="DIR", + help="Write the output files to DIR.", + ) + fail_under = optparse.make_option( + '', '--fail-under', action='store', metavar="MIN", type="float", + help="Exit with a status of 2 if the total coverage is less than MIN.", + ) + help = optparse.make_option( + '-h', '--help', action='store_true', + help="Get help on this command.", + ) + ignore_errors = optparse.make_option( + '-i', '--ignore-errors', action='store_true', + help="Ignore errors while reading source files.", + ) + include = optparse.make_option( + '', '--include', action='store', metavar="PAT1,PAT2,...", + help=( + "Include only files whose paths match one of these patterns. " + + "Accepts shell-style wildcards, which must be quoted." + ), + ) + pylib = optparse.make_option( + '-L', '--pylib', action='store_true', + help=( + "Measure coverage even inside the Python installed library, " + + "which isn't done by default." + ), + ) + show_missing = optparse.make_option( + '-m', '--show-missing', action='store_true', + help="Show line numbers of statements in each module that weren't executed.", + ) + module = optparse.make_option( + '-m', '--module', action='store_true', + help=( + " is an importable Python module, not a script path, " + + "to be run as 'python -m' would run it." + ), + ) + omit = optparse.make_option( + '', '--omit', action='store', metavar="PAT1,PAT2,...", + help=( + "Omit files whose paths match one of these patterns. " + + "Accepts shell-style wildcards, which must be quoted." + ), + ) + output_xml = optparse.make_option( + '-o', '', action='store', dest="outfile", metavar="OUTFILE", + help="Write the XML report to this file. Defaults to 'coverage.xml'", + ) + output_json = optparse.make_option( + '-o', '', action='store', dest="outfile", metavar="OUTFILE", + help="Write the JSON report to this file. Defaults to 'coverage.json'", + ) + output_lcov = optparse.make_option( + '-o', '', action='store', dest='outfile', metavar="OUTFILE", + help="Write the LCOV report to this file. Defaults to 'coverage.lcov'", + ) + json_pretty_print = optparse.make_option( + '', '--pretty-print', action='store_true', + help="Format the JSON for human readers.", + ) + parallel_mode = optparse.make_option( + '-p', '--parallel-mode', action='store_true', + help=( + "Append the machine name, process id and random number to the " + + "data file name to simplify collecting data from " + + "many processes." + ), + ) + precision = optparse.make_option( + '', '--precision', action='store', metavar='N', type=int, + help=( + "Number of digits after the decimal point to display for " + + "reported coverage percentages." + ), + ) + quiet = optparse.make_option( + '-q', '--quiet', action='store_true', + help="Don't print messages about what is happening.", + ) + rcfile = optparse.make_option( + '', '--rcfile', action='store', + help=( + "Specify configuration file. " + + "By default '.coveragerc', 'setup.cfg', 'tox.ini', and " + + "'pyproject.toml' are tried. [env: COVERAGE_RCFILE]" + ), + ) + show_contexts = optparse.make_option( + '--show-contexts', action='store_true', + help="Show contexts for covered lines.", + ) + skip_covered = optparse.make_option( + '--skip-covered', action='store_true', + help="Skip files with 100% coverage.", + ) + no_skip_covered = optparse.make_option( + '--no-skip-covered', action='store_false', dest='skip_covered', + help="Disable --skip-covered.", + ) + skip_empty = optparse.make_option( + '--skip-empty', action='store_true', + help="Skip files with no code.", + ) + sort = optparse.make_option( + '--sort', action='store', metavar='COLUMN', + help=( + "Sort the report by the named column: name, stmts, miss, branch, brpart, or cover. " + + "Default is name." + ), + ) + source = optparse.make_option( + '', '--source', action='store', metavar="SRC1,SRC2,...", + help="A list of directories or importable names of code to measure.", + ) + timid = optparse.make_option( + '', '--timid', action='store_true', + help=( + "Use a simpler but slower trace method. Try this if you get " + + "seemingly impossible results!" + ), + ) + title = optparse.make_option( + '', '--title', action='store', metavar="TITLE", + help="A text string to use as the title on the HTML.", + ) + version = optparse.make_option( + '', '--version', action='store_true', + help="Display version information and exit.", + ) + + +class CoverageOptionParser(optparse.OptionParser): + """Base OptionParser for coverage.py. + + Problems don't exit the program. + Defaults are initialized for all options. + + """ + + def __init__(self, *args, **kwargs): + super().__init__(add_help_option=False, *args, **kwargs) + self.set_defaults( + # Keep these arguments alphabetized by their names. + action=None, + append=None, + branch=None, + concurrency=None, + context=None, + contexts=None, + data_file=None, + debug=None, + directory=None, + fail_under=None, + help=None, + ignore_errors=None, + include=None, + keep=None, + module=None, + omit=None, + parallel_mode=None, + precision=None, + pylib=None, + quiet=None, + rcfile=True, + show_contexts=None, + show_missing=None, + skip_covered=None, + skip_empty=None, + sort=None, + source=None, + timid=None, + title=None, + version=None, + ) + + self.disable_interspersed_args() + + class OptionParserError(Exception): + """Used to stop the optparse error handler ending the process.""" + pass + + def parse_args_ok(self, args=None, options=None): + """Call optparse.parse_args, but return a triple: + + (ok, options, args) + + """ + try: + options, args = super().parse_args(args, options) + except self.OptionParserError: + return False, None, None + return True, options, args + + def error(self, msg): + """Override optparse.error so sys.exit doesn't get called.""" + show_help(msg) + raise self.OptionParserError + + +class GlobalOptionParser(CoverageOptionParser): + """Command-line parser for coverage.py global option arguments.""" + + def __init__(self): + super().__init__() + + self.add_options([ + Opts.help, + Opts.version, + ]) + + +class CmdOptionParser(CoverageOptionParser): + """Parse one of the new-style commands for coverage.py.""" + + def __init__(self, action, options, defaults=None, usage=None, description=None): + """Create an OptionParser for a coverage.py command. + + `action` is the slug to put into `options.action`. + `options` is a list of Option's for the command. + `defaults` is a dict of default value for options. + `usage` is the usage string to display in help. + `description` is the description of the command, for the help text. + + """ + if usage: + usage = "%prog " + usage + super().__init__( + usage=usage, + description=description, + ) + self.set_defaults(action=action, **(defaults or {})) + self.add_options(options) + self.cmd = action + + def __eq__(self, other): + # A convenience equality, so that I can put strings in unit test + # results, and they will compare equal to objects. + return (other == f"") + + __hash__ = None # This object doesn't need to be hashed. + + def get_prog_name(self): + """Override of an undocumented function in optparse.OptionParser.""" + program_name = super().get_prog_name() + + # Include the sub-command for this parser as part of the command. + return f"{program_name} {self.cmd}" + +# In lists of Opts, keep them alphabetized by the option names as they appear +# on the command line, since these lists determine the order of the options in +# the help output. +# +# In COMMANDS, keep the keys (command names) alphabetized. + +GLOBAL_ARGS = [ + Opts.debug, + Opts.help, + Opts.rcfile, +] + +COMMANDS = { + 'annotate': CmdOptionParser( + "annotate", + [ + Opts.directory, + Opts.input_datafile, + Opts.ignore_errors, + Opts.include, + Opts.omit, + ] + GLOBAL_ARGS, + usage="[options] [modules]", + description=( + "Make annotated copies of the given files, marking statements that are executed " + + "with > and statements that are missed with !." + ), + ), + + 'combine': CmdOptionParser( + "combine", + [ + Opts.append, + Opts.combine_datafile, + Opts.keep, + Opts.quiet, + ] + GLOBAL_ARGS, + usage="[options] ... ", + description=( + "Combine data from multiple coverage files collected " + + "with 'run -p'. The combined results are written to a single " + + "file representing the union of the data. The positional " + + "arguments are data files or directories containing data files. " + + "If no paths are provided, data files in the default data file's " + + "directory are combined." + ), + ), + + 'debug': CmdOptionParser( + "debug", GLOBAL_ARGS, + usage="", + description=( + "Display information about the internals of coverage.py, " + + "for diagnosing problems. " + + "Topics are: " + + "'data' to show a summary of the collected data; " + + "'sys' to show installation information; " + + "'config' to show the configuration; " + + "'premain' to show what is calling coverage; " + + "'pybehave' to show internal flags describing Python behavior." + ), + ), + + 'erase': CmdOptionParser( + "erase", + [ + Opts.combine_datafile + ] + GLOBAL_ARGS, + description="Erase previously collected coverage data.", + ), + + 'help': CmdOptionParser( + "help", GLOBAL_ARGS, + usage="[command]", + description="Describe how to use coverage.py", + ), + + 'html': CmdOptionParser( + "html", + [ + Opts.contexts, + Opts.directory, + Opts.input_datafile, + Opts.fail_under, + Opts.ignore_errors, + Opts.include, + Opts.omit, + Opts.precision, + Opts.quiet, + Opts.show_contexts, + Opts.skip_covered, + Opts.no_skip_covered, + Opts.skip_empty, + Opts.title, + ] + GLOBAL_ARGS, + usage="[options] [modules]", + description=( + "Create an HTML report of the coverage of the files. " + + "Each file gets its own page, with the source decorated to show " + + "executed, excluded, and missed lines." + ), + ), + + 'json': CmdOptionParser( + "json", + [ + Opts.contexts, + Opts.input_datafile, + Opts.fail_under, + Opts.ignore_errors, + Opts.include, + Opts.omit, + Opts.output_json, + Opts.json_pretty_print, + Opts.quiet, + Opts.show_contexts, + ] + GLOBAL_ARGS, + usage="[options] [modules]", + description="Generate a JSON report of coverage results.", + ), + + 'lcov': CmdOptionParser( + "lcov", + [ + Opts.input_datafile, + Opts.fail_under, + Opts.ignore_errors, + Opts.include, + Opts.output_lcov, + Opts.omit, + Opts.quiet, + ] + GLOBAL_ARGS, + usage="[options] [modules]", + description="Generate an LCOV report of coverage results.", + ), + + 'report': CmdOptionParser( + "report", + [ + Opts.contexts, + Opts.input_datafile, + Opts.fail_under, + Opts.ignore_errors, + Opts.include, + Opts.omit, + Opts.precision, + Opts.sort, + Opts.show_missing, + Opts.skip_covered, + Opts.no_skip_covered, + Opts.skip_empty, + ] + GLOBAL_ARGS, + usage="[options] [modules]", + description="Report coverage statistics on modules.", + ), + + 'run': CmdOptionParser( + "run", + [ + Opts.append, + Opts.branch, + Opts.concurrency, + Opts.context, + Opts.output_datafile, + Opts.include, + Opts.module, + Opts.omit, + Opts.pylib, + Opts.parallel_mode, + Opts.source, + Opts.timid, + ] + GLOBAL_ARGS, + usage="[options] [program options]", + description="Run a Python program, measuring code execution.", + ), + + 'xml': CmdOptionParser( + "xml", + [ + Opts.input_datafile, + Opts.fail_under, + Opts.ignore_errors, + Opts.include, + Opts.omit, + Opts.output_xml, + Opts.quiet, + Opts.skip_empty, + ] + GLOBAL_ARGS, + usage="[options] [modules]", + description="Generate an XML report of coverage results.", + ), +} + + +def show_help(error=None, topic=None, parser=None): + """Display an error message, or the named topic.""" + assert error or topic or parser + + program_path = sys.argv[0] + if program_path.endswith(os.path.sep + '__main__.py'): + # The path is the main module of a package; get that path instead. + program_path = os.path.dirname(program_path) + program_name = os.path.basename(program_path) + if env.WINDOWS: + # entry_points={'console_scripts':...} on Windows makes files + # called coverage.exe, coverage3.exe, and coverage-3.5.exe. These + # invoke coverage-script.py, coverage3-script.py, and + # coverage-3.5-script.py. argv[0] is the .py file, but we want to + # get back to the original form. + auto_suffix = "-script.py" + if program_name.endswith(auto_suffix): + program_name = program_name[:-len(auto_suffix)] + + help_params = dict(coverage.__dict__) + help_params['program_name'] = program_name + if CTracer is not None: + help_params['extension_modifier'] = 'with C extension' + else: + help_params['extension_modifier'] = 'without C extension' + + if error: + print(error, file=sys.stderr) + print(f"Use '{program_name} help' for help.", file=sys.stderr) + elif parser: + print(parser.format_help().strip()) + print() + else: + help_msg = textwrap.dedent(HELP_TOPICS.get(topic, '')).strip() + if help_msg: + print(help_msg.format(**help_params)) + else: + print(f"Don't know topic {topic!r}") + print("Full documentation is at {__url__}".format(**help_params)) + + +OK, ERR, FAIL_UNDER = 0, 1, 2 + + +class CoverageScript: + """The command-line interface to coverage.py.""" + + def __init__(self): + self.global_option = False + self.coverage = None + + def command_line(self, argv): + """The bulk of the command line interface to coverage.py. + + `argv` is the argument list to process. + + Returns 0 if all is well, 1 if something went wrong. + + """ + # Collect the command-line options. + if not argv: + show_help(topic='minimum_help') + return OK + + # The command syntax we parse depends on the first argument. Global + # switch syntax always starts with an option. + self.global_option = argv[0].startswith('-') + if self.global_option: + parser = GlobalOptionParser() + else: + parser = COMMANDS.get(argv[0]) + if not parser: + show_help(f"Unknown command: {argv[0]!r}") + return ERR + argv = argv[1:] + + ok, options, args = parser.parse_args_ok(argv) + if not ok: + return ERR + + # Handle help and version. + if self.do_help(options, args, parser): + return OK + + # Listify the list options. + source = unshell_list(options.source) + omit = unshell_list(options.omit) + include = unshell_list(options.include) + debug = unshell_list(options.debug) + contexts = unshell_list(options.contexts) + + if options.concurrency is not None: + concurrency = options.concurrency.split(",") + else: + concurrency = None + + # Do something. + self.coverage = Coverage( + data_file=options.data_file or DEFAULT_DATAFILE, + data_suffix=options.parallel_mode, + cover_pylib=options.pylib, + timid=options.timid, + branch=options.branch, + config_file=options.rcfile, + source=source, + omit=omit, + include=include, + debug=debug, + concurrency=concurrency, + check_preimported=True, + context=options.context, + messages=not options.quiet, + ) + + if options.action == "debug": + return self.do_debug(args) + + elif options.action == "erase": + self.coverage.erase() + return OK + + elif options.action == "run": + return self.do_run(options, args) + + elif options.action == "combine": + if options.append: + self.coverage.load() + data_paths = args or None + self.coverage.combine(data_paths, strict=True, keep=bool(options.keep)) + self.coverage.save() + return OK + + # Remaining actions are reporting, with some common options. + report_args = dict( + morfs=unglob_args(args), + ignore_errors=options.ignore_errors, + omit=omit, + include=include, + contexts=contexts, + ) + + # We need to be able to import from the current directory, because + # plugins may try to, for example, to read Django settings. + sys.path.insert(0, '') + + self.coverage.load() + + total = None + if options.action == "report": + total = self.coverage.report( + precision=options.precision, + show_missing=options.show_missing, + skip_covered=options.skip_covered, + skip_empty=options.skip_empty, + sort=options.sort, + **report_args + ) + elif options.action == "annotate": + self.coverage.annotate(directory=options.directory, **report_args) + elif options.action == "html": + total = self.coverage.html_report( + directory=options.directory, + precision=options.precision, + skip_covered=options.skip_covered, + skip_empty=options.skip_empty, + show_contexts=options.show_contexts, + title=options.title, + **report_args + ) + elif options.action == "xml": + total = self.coverage.xml_report( + outfile=options.outfile, + skip_empty=options.skip_empty, + **report_args + ) + elif options.action == "json": + total = self.coverage.json_report( + outfile=options.outfile, + pretty_print=options.pretty_print, + show_contexts=options.show_contexts, + **report_args + ) + elif options.action == "lcov": + total = self.coverage.lcov_report( + outfile=options.outfile, + **report_args + ) + else: + # There are no other possible actions. + raise AssertionError + + if total is not None: + # Apply the command line fail-under options, and then use the config + # value, so we can get fail_under from the config file. + if options.fail_under is not None: + self.coverage.set_option("report:fail_under", options.fail_under) + if options.precision is not None: + self.coverage.set_option("report:precision", options.precision) + + fail_under = self.coverage.get_option("report:fail_under") + precision = self.coverage.get_option("report:precision") + if should_fail_under(total, fail_under, precision): + msg = "total of {total} is less than fail-under={fail_under:.{p}f}".format( + total=Numbers(precision=precision).display_covered(total), + fail_under=fail_under, + p=precision, + ) + print("Coverage failure:", msg) + return FAIL_UNDER + + return OK + + def do_help(self, options, args, parser): + """Deal with help requests. + + Return True if it handled the request, False if not. + + """ + # Handle help. + if options.help: + if self.global_option: + show_help(topic='help') + else: + show_help(parser=parser) + return True + + if options.action == "help": + if args: + for a in args: + parser = COMMANDS.get(a) + if parser: + show_help(parser=parser) + else: + show_help(topic=a) + else: + show_help(topic='help') + return True + + # Handle version. + if options.version: + show_help(topic='version') + return True + + return False + + def do_run(self, options, args): + """Implementation of 'coverage run'.""" + + if not args: + if options.module: + # Specified -m with nothing else. + show_help("No module specified for -m") + return ERR + command_line = self.coverage.get_option("run:command_line") + if command_line is not None: + args = shlex.split(command_line) + if args and args[0] in {"-m", "--module"}: + options.module = True + args = args[1:] + if not args: + show_help("Nothing to do.") + return ERR + + if options.append and self.coverage.get_option("run:parallel"): + show_help("Can't append to data files in parallel mode.") + return ERR + + if options.concurrency == "multiprocessing": + # Can't set other run-affecting command line options with + # multiprocessing. + for opt_name in ['branch', 'include', 'omit', 'pylib', 'source', 'timid']: + # As it happens, all of these options have no default, meaning + # they will be None if they have not been specified. + if getattr(options, opt_name) is not None: + show_help( + "Options affecting multiprocessing must only be specified " + + "in a configuration file.\n" + + f"Remove --{opt_name} from the command line." + ) + return ERR + + os.environ["COVERAGE_RUN"] = "true" + + runner = PyRunner(args, as_module=bool(options.module)) + runner.prepare() + + if options.append: + self.coverage.load() + + # Run the script. + self.coverage.start() + code_ran = True + try: + runner.run() + except NoSource: + code_ran = False + raise + finally: + self.coverage.stop() + if code_ran: + self.coverage.save() + + return OK + + def do_debug(self, args): + """Implementation of 'coverage debug'.""" + + if not args: + show_help("What information would you like: config, data, sys, premain, pybehave?") + return ERR + if args[1:]: + show_help("Only one topic at a time, please") + return ERR + + if args[0] == "sys": + write_formatted_info(print, "sys", self.coverage.sys_info()) + elif args[0] == "data": + print(info_header("data")) + data_file = self.coverage.config.data_file + debug_data_file(data_file) + for filename in combinable_files(data_file): + print("-----") + debug_data_file(filename) + elif args[0] == "config": + write_formatted_info(print, "config", self.coverage.config.debug_info()) + elif args[0] == "premain": + print(info_header("premain")) + print(short_stack()) + elif args[0] == "pybehave": + write_formatted_info(print, "pybehave", env.debug_info()) + else: + show_help(f"Don't know what you mean by {args[0]!r}") + return ERR + + return OK + + +def unshell_list(s): + """Turn a command-line argument into a list.""" + if not s: + return None + if env.WINDOWS: + # When running coverage.py as coverage.exe, some of the behavior + # of the shell is emulated: wildcards are expanded into a list of + # file names. So you have to single-quote patterns on the command + # line, but (not) helpfully, the single quotes are included in the + # argument, so we have to strip them off here. + s = s.strip("'") + return s.split(',') + + +def unglob_args(args): + """Interpret shell wildcards for platforms that need it.""" + if env.WINDOWS: + globbed = [] + for arg in args: + if '?' in arg or '*' in arg: + globbed.extend(glob.glob(arg)) + else: + globbed.append(arg) + args = globbed + return args + + +HELP_TOPICS = { + 'help': """\ + Coverage.py, version {__version__} {extension_modifier} + Measure, collect, and report on code coverage in Python programs. + + usage: {program_name} [options] [args] + + Commands: + annotate Annotate source files with execution information. + combine Combine a number of data files. + debug Display information about the internals of coverage.py + erase Erase previously collected coverage data. + help Get help on using coverage.py. + html Create an HTML report. + json Create a JSON report of coverage results. + lcov Create an LCOV report of coverage results. + report Report coverage stats on modules. + run Run a Python program and measure code execution. + xml Create an XML report of coverage results. + + Use "{program_name} help " for detailed help on any command. + """, + + 'minimum_help': """\ + Code coverage for Python, version {__version__} {extension_modifier}. Use '{program_name} help' for help. + """, + + 'version': """\ + Coverage.py, version {__version__} {extension_modifier} + """, +} + + +def main(argv=None): + """The main entry point to coverage.py. + + This is installed as the script entry point. + + """ + if argv is None: + argv = sys.argv[1:] + try: + status = CoverageScript().command_line(argv) + except _ExceptionDuringRun as err: + # An exception was caught while running the product code. The + # sys.exc_info() return tuple is packed into an _ExceptionDuringRun + # exception. + traceback.print_exception(*err.args) # pylint: disable=no-value-for-parameter + status = ERR + except _BaseCoverageException as err: + # A controlled error inside coverage.py: print the message to the user. + msg = err.args[0] + print(msg) + status = ERR + except SystemExit as err: + # The user called `sys.exit()`. Exit with their argument, if any. + if err.args: + status = err.args[0] + else: + status = None + return status + +# Profiling using ox_profile. Install it from GitHub: +# pip install git+https://github.com/emin63/ox_profile.git +# +# $set_env.py: COVERAGE_PROFILE - Set to use ox_profile. +_profile = os.environ.get("COVERAGE_PROFILE", "") +if _profile: # pragma: debugging + from ox_profile.core.launchers import SimpleLauncher # pylint: disable=import-error + original_main = main + + def main(argv=None): # pylint: disable=function-redefined + """A wrapper around main that profiles.""" + profiler = SimpleLauncher.launch() + try: + return original_main(argv) + finally: + data, _ = profiler.query(re_filter='coverage', max_records=100) + print(profiler.show(query=data, limit=100, sep='', col='')) + profiler.cancel() diff --git a/utils/python-venv/Lib/site-packages/coverage/collector.py b/utils/python-venv/Lib/site-packages/coverage/collector.py new file mode 100644 index 0000000..241de05 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/collector.py @@ -0,0 +1,484 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Raw data collector for coverage.py.""" + +import os +import sys + +from coverage import env +from coverage.config import CoverageConfig +from coverage.debug import short_stack +from coverage.disposition import FileDisposition +from coverage.exceptions import ConfigError +from coverage.misc import human_sorted, isolate_module +from coverage.pytracer import PyTracer + +os = isolate_module(os) + + +try: + # Use the C extension code when we can, for speed. + from coverage.tracer import CTracer, CFileDisposition +except ImportError: + # Couldn't import the C extension, maybe it isn't built. + if os.getenv('COVERAGE_TEST_TRACER') == 'c': # pragma: part covered + # During testing, we use the COVERAGE_TEST_TRACER environment variable + # to indicate that we've fiddled with the environment to test this + # fallback code. If we thought we had a C tracer, but couldn't import + # it, then exit quickly and clearly instead of dribbling confusing + # errors. I'm using sys.exit here instead of an exception because an + # exception here causes all sorts of other noise in unittest. + sys.stderr.write("*** COVERAGE_TEST_TRACER is 'c' but can't import CTracer!\n") + sys.exit(1) + CTracer = None + + +class Collector: + """Collects trace data. + + Creates a Tracer object for each thread, since they track stack + information. Each Tracer points to the same shared data, contributing + traced data points. + + When the Collector is started, it creates a Tracer for the current thread, + and installs a function to create Tracers for each new thread started. + When the Collector is stopped, all active Tracers are stopped. + + Threads started while the Collector is stopped will never have Tracers + associated with them. + + """ + + # The stack of active Collectors. Collectors are added here when started, + # and popped when stopped. Collectors on the stack are paused when not + # the top, and resumed when they become the top again. + _collectors = [] + + # The concurrency settings we support here. + LIGHT_THREADS = {"greenlet", "eventlet", "gevent"} + + def __init__( + self, should_trace, check_include, should_start_context, file_mapper, + timid, branch, warn, concurrency, + ): + """Create a collector. + + `should_trace` is a function, taking a file name and a frame, and + returning a `coverage.FileDisposition object`. + + `check_include` is a function taking a file name and a frame. It returns + a boolean: True if the file should be traced, False if not. + + `should_start_context` is a function taking a frame, and returning a + string. If the frame should be the start of a new context, the string + is the new context. If the frame should not be the start of a new + context, return None. + + `file_mapper` is a function taking a filename, and returning a Unicode + filename. The result is the name that will be recorded in the data + file. + + If `timid` is true, then a slower simpler trace function will be + used. This is important for some environments where manipulation of + tracing functions make the faster more sophisticated trace function not + operate properly. + + If `branch` is true, then branches will be measured. This involves + collecting data on which statements followed each other (arcs). Use + `get_arc_data` to get the arc data. + + `warn` is a warning function, taking a single string message argument + and an optional slug argument which will be a string or None, to be + used if a warning needs to be issued. + + `concurrency` is a list of strings indicating the concurrency libraries + in use. Valid values are "greenlet", "eventlet", "gevent", or "thread" + (the default). "thread" can be combined with one of the other three. + Other values are ignored. + + """ + self.should_trace = should_trace + self.check_include = check_include + self.should_start_context = should_start_context + self.file_mapper = file_mapper + self.branch = branch + self.warn = warn + self.concurrency = concurrency + assert isinstance(self.concurrency, list), f"Expected a list: {self.concurrency!r}" + + self.threading = None + self.covdata = None + self.static_context = None + + self.origin = short_stack() + + self.concur_id_func = None + self.mapped_file_cache = {} + + if timid: + # Being timid: use the simple Python trace function. + self._trace_class = PyTracer + else: + # Being fast: use the C Tracer if it is available, else the Python + # trace function. + self._trace_class = CTracer or PyTracer + + if self._trace_class is CTracer: + self.file_disposition_class = CFileDisposition + self.supports_plugins = True + self.packed_arcs = True + else: + self.file_disposition_class = FileDisposition + self.supports_plugins = False + self.packed_arcs = False + + # We can handle a few concurrency options here, but only one at a time. + concurrencies = set(self.concurrency) + unknown = concurrencies - CoverageConfig.CONCURRENCY_CHOICES + if unknown: + show = ", ".join(sorted(unknown)) + raise ConfigError(f"Unknown concurrency choices: {show}") + light_threads = concurrencies & self.LIGHT_THREADS + if len(light_threads) > 1: + show = ", ".join(sorted(light_threads)) + raise ConfigError(f"Conflicting concurrency settings: {show}") + do_threading = False + + tried = "nothing" # to satisfy pylint + try: + if "greenlet" in concurrencies: + tried = "greenlet" + import greenlet + self.concur_id_func = greenlet.getcurrent + elif "eventlet" in concurrencies: + tried = "eventlet" + import eventlet.greenthread # pylint: disable=import-error,useless-suppression + self.concur_id_func = eventlet.greenthread.getcurrent + elif "gevent" in concurrencies: + tried = "gevent" + import gevent # pylint: disable=import-error,useless-suppression + self.concur_id_func = gevent.getcurrent + + if "thread" in concurrencies: + do_threading = True + except ImportError as ex: + msg = f"Couldn't trace with concurrency={tried}, the module isn't installed." + raise ConfigError(msg) from ex + + if self.concur_id_func and not hasattr(self._trace_class, "concur_id_func"): + raise ConfigError( + "Can't support concurrency={} with {}, only threads are supported.".format( + tried, self.tracer_name(), + ) + ) + + if do_threading or not concurrencies: + # It's important to import threading only if we need it. If + # it's imported early, and the program being measured uses + # gevent, then gevent's monkey-patching won't work properly. + import threading + self.threading = threading + + self.reset() + + def __repr__(self): + return f"" + + def use_data(self, covdata, context): + """Use `covdata` for recording data.""" + self.covdata = covdata + self.static_context = context + self.covdata.set_context(self.static_context) + + def tracer_name(self): + """Return the class name of the tracer we're using.""" + return self._trace_class.__name__ + + def _clear_data(self): + """Clear out existing data, but stay ready for more collection.""" + # We used to used self.data.clear(), but that would remove filename + # keys and data values that were still in use higher up the stack + # when we are called as part of switch_context. + for d in self.data.values(): + d.clear() + + for tracer in self.tracers: + tracer.reset_activity() + + def reset(self): + """Clear collected data, and prepare to collect more.""" + # A dictionary mapping file names to dicts with line number keys (if not + # branch coverage), or mapping file names to dicts with line number + # pairs as keys (if branch coverage). + self.data = {} + + # A dictionary mapping file names to file tracer plugin names that will + # handle them. + self.file_tracers = {} + + self.disabled_plugins = set() + + # The .should_trace_cache attribute is a cache from file names to + # coverage.FileDisposition objects, or None. When a file is first + # considered for tracing, a FileDisposition is obtained from + # Coverage.should_trace. Its .trace attribute indicates whether the + # file should be traced or not. If it should be, a plugin with dynamic + # file names can decide not to trace it based on the dynamic file name + # being excluded by the inclusion rules, in which case the + # FileDisposition will be replaced by None in the cache. + if env.PYPY: + import __pypy__ # pylint: disable=import-error + # Alex Gaynor said: + # should_trace_cache is a strictly growing key: once a key is in + # it, it never changes. Further, the keys used to access it are + # generally constant, given sufficient context. That is to say, at + # any given point _trace() is called, pypy is able to know the key. + # This is because the key is determined by the physical source code + # line, and that's invariant with the call site. + # + # This property of a dict with immutable keys, combined with + # call-site-constant keys is a match for PyPy's module dict, + # which is optimized for such workloads. + # + # This gives a 20% benefit on the workload described at + # https://bitbucket.org/pypy/pypy/issue/1871/10x-slower-than-cpython-under-coverage + self.should_trace_cache = __pypy__.newdict("module") + else: + self.should_trace_cache = {} + + # Our active Tracers. + self.tracers = [] + + self._clear_data() + + def _start_tracer(self): + """Start a new Tracer object, and store it in self.tracers.""" + tracer = self._trace_class() + tracer.data = self.data + tracer.trace_arcs = self.branch + tracer.should_trace = self.should_trace + tracer.should_trace_cache = self.should_trace_cache + tracer.warn = self.warn + + if hasattr(tracer, 'concur_id_func'): + tracer.concur_id_func = self.concur_id_func + if hasattr(tracer, 'file_tracers'): + tracer.file_tracers = self.file_tracers + if hasattr(tracer, 'threading'): + tracer.threading = self.threading + if hasattr(tracer, 'check_include'): + tracer.check_include = self.check_include + if hasattr(tracer, 'should_start_context'): + tracer.should_start_context = self.should_start_context + tracer.switch_context = self.switch_context + if hasattr(tracer, 'disable_plugin'): + tracer.disable_plugin = self.disable_plugin + + fn = tracer.start() + self.tracers.append(tracer) + + return fn + + # The trace function has to be set individually on each thread before + # execution begins. Ironically, the only support the threading module has + # for running code before the thread main is the tracing function. So we + # install this as a trace function, and the first time it's called, it does + # the real trace installation. + # + # New in 3.12: threading.settrace_all_threads: https://github.com/python/cpython/pull/96681 + + def _installation_trace(self, frame, event, arg): + """Called on new threads, installs the real tracer.""" + # Remove ourselves as the trace function. + sys.settrace(None) + # Install the real tracer. + fn = self._start_tracer() + # Invoke the real trace function with the current event, to be sure + # not to lose an event. + if fn: + fn = fn(frame, event, arg) + # Return the new trace function to continue tracing in this scope. + return fn + + def start(self): + """Start collecting trace information.""" + if self._collectors: + self._collectors[-1].pause() + + self.tracers = [] + + # Check to see whether we had a fullcoverage tracer installed. If so, + # get the stack frames it stashed away for us. + traces0 = [] + fn0 = sys.gettrace() + if fn0: + tracer0 = getattr(fn0, '__self__', None) + if tracer0: + traces0 = getattr(tracer0, 'traces', []) + + try: + # Install the tracer on this thread. + fn = self._start_tracer() + except: + if self._collectors: + self._collectors[-1].resume() + raise + + # If _start_tracer succeeded, then we add ourselves to the global + # stack of collectors. + self._collectors.append(self) + + # Replay all the events from fullcoverage into the new trace function. + for (frame, event, arg), lineno in traces0: + try: + fn(frame, event, arg, lineno=lineno) + except TypeError as ex: + raise Exception("fullcoverage must be run with the C trace function.") from ex + + # Install our installation tracer in threading, to jump-start other + # threads. + if self.threading: + self.threading.settrace(self._installation_trace) + + def stop(self): + """Stop collecting trace information.""" + assert self._collectors + if self._collectors[-1] is not self: + print("self._collectors:") + for c in self._collectors: + print(f" {c!r}\n{c.origin}") + assert self._collectors[-1] is self, ( + f"Expected current collector to be {self!r}, but it's {self._collectors[-1]!r}" + ) + + self.pause() + + # Remove this Collector from the stack, and resume the one underneath + # (if any). + self._collectors.pop() + if self._collectors: + self._collectors[-1].resume() + + def pause(self): + """Pause tracing, but be prepared to `resume`.""" + for tracer in self.tracers: + tracer.stop() + stats = tracer.get_stats() + if stats: + print("\nCoverage.py tracer stats:") + for k in human_sorted(stats.keys()): + print(f"{k:>20}: {stats[k]}") + if self.threading: + self.threading.settrace(None) + + def resume(self): + """Resume tracing after a `pause`.""" + for tracer in self.tracers: + tracer.start() + if self.threading: + self.threading.settrace(self._installation_trace) + else: + self._start_tracer() + + def _activity(self): + """Has any activity been traced? + + Returns a boolean, True if any trace function was invoked. + + """ + return any(tracer.activity() for tracer in self.tracers) + + def switch_context(self, new_context): + """Switch to a new dynamic context.""" + self.flush_data() + if self.static_context: + context = self.static_context + if new_context: + context += "|" + new_context + else: + context = new_context + self.covdata.set_context(context) + + def disable_plugin(self, disposition): + """Disable the plugin mentioned in `disposition`.""" + file_tracer = disposition.file_tracer + plugin = file_tracer._coverage_plugin + plugin_name = plugin._coverage_plugin_name + self.warn(f"Disabling plug-in {plugin_name!r} due to previous exception") + plugin._coverage_enabled = False + disposition.trace = False + + def cached_mapped_file(self, filename): + """A locally cached version of file names mapped through file_mapper.""" + key = (type(filename), filename) + try: + return self.mapped_file_cache[key] + except KeyError: + return self.mapped_file_cache.setdefault(key, self.file_mapper(filename)) + + def mapped_file_dict(self, d): + """Return a dict like d, but with keys modified by file_mapper.""" + # The call to list(items()) ensures that the GIL protects the dictionary + # iterator against concurrent modifications by tracers running + # in other threads. We try three times in case of concurrent + # access, hoping to get a clean copy. + runtime_err = None + for _ in range(3): # pragma: part covered + try: + items = list(d.items()) + except RuntimeError as ex: # pragma: cant happen + runtime_err = ex + else: + break + else: + raise runtime_err # pragma: cant happen + + return {self.cached_mapped_file(k): v for k, v in items} + + def plugin_was_disabled(self, plugin): + """Record that `plugin` was disabled during the run.""" + self.disabled_plugins.add(plugin._coverage_plugin_name) + + def flush_data(self): + """Save the collected data to our associated `CoverageData`. + + Data may have also been saved along the way. This forces the + last of the data to be saved. + + Returns True if there was data to save, False if not. + """ + if not self._activity(): + return False + + if self.branch: + if self.packed_arcs: + # Unpack the line number pairs packed into integers. See + # tracer.c:CTracer_record_pair for the C code that creates + # these packed ints. + data = {} + for fname, packeds in self.data.items(): + tuples = [] + for packed in packeds: + l1 = packed & 0xFFFFF + l2 = (packed & (0xFFFFF << 20)) >> 20 + if packed & (1 << 40): + l1 *= -1 + if packed & (1 << 41): + l2 *= -1 + tuples.append((l1, l2)) + data[fname] = tuples + else: + data = self.data + self.covdata.add_arcs(self.mapped_file_dict(data)) + else: + self.covdata.add_lines(self.mapped_file_dict(self.data)) + + file_tracers = { + k: v for k, v in self.file_tracers.items() + if v not in self.disabled_plugins + } + self.covdata.add_file_tracers(self.mapped_file_dict(file_tracers)) + + self._clear_data() + return True diff --git a/utils/python-venv/Lib/site-packages/coverage/config.py b/utils/python-venv/Lib/site-packages/coverage/config.py new file mode 100644 index 0000000..1ad4659 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/config.py @@ -0,0 +1,583 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Config file for coverage.py""" + +import collections +import configparser +import copy +import os +import os.path +import re + +from coverage.exceptions import ConfigError +from coverage.misc import contract, isolate_module, human_sorted_items, substitute_variables + +from coverage.tomlconfig import TomlConfigParser, TomlDecodeError + +os = isolate_module(os) + + +class HandyConfigParser(configparser.RawConfigParser): + """Our specialization of ConfigParser.""" + + def __init__(self, our_file): + """Create the HandyConfigParser. + + `our_file` is True if this config file is specifically for coverage, + False if we are examining another config file (tox.ini, setup.cfg) + for possible settings. + """ + + configparser.RawConfigParser.__init__(self) + self.section_prefixes = ["coverage:"] + if our_file: + self.section_prefixes.append("") + + def read(self, filenames, encoding_unused=None): + """Read a file name as UTF-8 configuration data.""" + return configparser.RawConfigParser.read(self, filenames, encoding="utf-8") + + def has_option(self, section, option): + for section_prefix in self.section_prefixes: + real_section = section_prefix + section + has = configparser.RawConfigParser.has_option(self, real_section, option) + if has: + return has + return False + + def has_section(self, section): + for section_prefix in self.section_prefixes: + real_section = section_prefix + section + has = configparser.RawConfigParser.has_section(self, real_section) + if has: + return real_section + return False + + def options(self, section): + for section_prefix in self.section_prefixes: + real_section = section_prefix + section + if configparser.RawConfigParser.has_section(self, real_section): + return configparser.RawConfigParser.options(self, real_section) + raise ConfigError(f"No section: {section!r}") + + def get_section(self, section): + """Get the contents of a section, as a dictionary.""" + d = {} + for opt in self.options(section): + d[opt] = self.get(section, opt) + return d + + def get(self, section, option, *args, **kwargs): + """Get a value, replacing environment variables also. + + The arguments are the same as `RawConfigParser.get`, but in the found + value, ``$WORD`` or ``${WORD}`` are replaced by the value of the + environment variable ``WORD``. + + Returns the finished value. + + """ + for section_prefix in self.section_prefixes: + real_section = section_prefix + section + if configparser.RawConfigParser.has_option(self, real_section, option): + break + else: + raise ConfigError(f"No option {option!r} in section: {section!r}") + + v = configparser.RawConfigParser.get(self, real_section, option, *args, **kwargs) + v = substitute_variables(v, os.environ) + return v + + def getlist(self, section, option): + """Read a list of strings. + + The value of `section` and `option` is treated as a comma- and newline- + separated list of strings. Each value is stripped of whitespace. + + Returns the list of strings. + + """ + value_list = self.get(section, option) + values = [] + for value_line in value_list.split('\n'): + for value in value_line.split(','): + value = value.strip() + if value: + values.append(value) + return values + + def getregexlist(self, section, option): + """Read a list of full-line regexes. + + The value of `section` and `option` is treated as a newline-separated + list of regexes. Each value is stripped of whitespace. + + Returns the list of strings. + + """ + line_list = self.get(section, option) + value_list = [] + for value in line_list.splitlines(): + value = value.strip() + try: + re.compile(value) + except re.error as e: + raise ConfigError( + f"Invalid [{section}].{option} value {value!r}: {e}" + ) from e + if value: + value_list.append(value) + return value_list + + +# The default line exclusion regexes. +DEFAULT_EXCLUDE = [ + r'#\s*(pragma|PRAGMA)[:\s]?\s*(no|NO)\s*(cover|COVER)', +] + +# The default partial branch regexes, to be modified by the user. +DEFAULT_PARTIAL = [ + r'#\s*(pragma|PRAGMA)[:\s]?\s*(no|NO)\s*(branch|BRANCH)', +] + +# The default partial branch regexes, based on Python semantics. +# These are any Python branching constructs that can't actually execute all +# their branches. +DEFAULT_PARTIAL_ALWAYS = [ + 'while (True|1|False|0):', + 'if (True|1|False|0):', +] + + +class CoverageConfig: + """Coverage.py configuration. + + The attributes of this class are the various settings that control the + operation of coverage.py. + + """ + # pylint: disable=too-many-instance-attributes + + def __init__(self): + """Initialize the configuration attributes to their defaults.""" + # Metadata about the config. + # We tried to read these config files. + self.attempted_config_files = [] + # We did read these config files, but maybe didn't find any content for us. + self.config_files_read = [] + # The file that gave us our configuration. + self.config_file = None + self._config_contents = None + + # Defaults for [run] and [report] + self._include = None + self._omit = None + + # Defaults for [run] + self.branch = False + self.command_line = None + self.concurrency = None + self.context = None + self.cover_pylib = False + self.data_file = ".coverage" + self.debug = [] + self.disable_warnings = [] + self.dynamic_context = None + self.note = None + self.parallel = False + self.plugins = [] + self.relative_files = False + self.run_include = None + self.run_omit = None + self.sigterm = False + self.source = None + self.source_pkgs = [] + self.timid = False + self._crash = None + + # Defaults for [report] + self.exclude_list = DEFAULT_EXCLUDE[:] + self.fail_under = 0.0 + self.ignore_errors = False + self.report_include = None + self.report_omit = None + self.partial_always_list = DEFAULT_PARTIAL_ALWAYS[:] + self.partial_list = DEFAULT_PARTIAL[:] + self.precision = 0 + self.report_contexts = None + self.show_missing = False + self.skip_covered = False + self.skip_empty = False + self.sort = None + + # Defaults for [html] + self.extra_css = None + self.html_dir = "htmlcov" + self.html_skip_covered = None + self.html_skip_empty = None + self.html_title = "Coverage report" + self.show_contexts = False + + # Defaults for [xml] + self.xml_output = "coverage.xml" + self.xml_package_depth = 99 + + # Defaults for [json] + self.json_output = "coverage.json" + self.json_pretty_print = False + self.json_show_contexts = False + + # Defaults for [lcov] + self.lcov_output = "coverage.lcov" + + # Defaults for [paths] + self.paths = collections.OrderedDict() + + # Options for plugins + self.plugin_options = {} + + MUST_BE_LIST = { + "debug", "concurrency", "plugins", + "report_omit", "report_include", + "run_omit", "run_include", + } + + def from_args(self, **kwargs): + """Read config values from `kwargs`.""" + for k, v in kwargs.items(): + if v is not None: + if k in self.MUST_BE_LIST and isinstance(v, str): + v = [v] + setattr(self, k, v) + + @contract(filename=str) + def from_file(self, filename, warn, our_file): + """Read configuration from a .rc file. + + `filename` is a file name to read. + + `our_file` is True if this config file is specifically for coverage, + False if we are examining another config file (tox.ini, setup.cfg) + for possible settings. + + Returns True or False, whether the file could be read, and it had some + coverage.py settings in it. + + """ + _, ext = os.path.splitext(filename) + if ext == '.toml': + cp = TomlConfigParser(our_file) + else: + cp = HandyConfigParser(our_file) + + self.attempted_config_files.append(filename) + + try: + files_read = cp.read(filename) + except (configparser.Error, TomlDecodeError) as err: + raise ConfigError(f"Couldn't read config file {filename}: {err}") from err + if not files_read: + return False + + self.config_files_read.extend(map(os.path.abspath, files_read)) + + any_set = False + try: + for option_spec in self.CONFIG_FILE_OPTIONS: + was_set = self._set_attr_from_config_option(cp, *option_spec) + if was_set: + any_set = True + except ValueError as err: + raise ConfigError(f"Couldn't read config file {filename}: {err}") from err + + # Check that there are no unrecognized options. + all_options = collections.defaultdict(set) + for option_spec in self.CONFIG_FILE_OPTIONS: + section, option = option_spec[1].split(":") + all_options[section].add(option) + + for section, options in all_options.items(): + real_section = cp.has_section(section) + if real_section: + for unknown in set(cp.options(section)) - options: + warn( + "Unrecognized option '[{}] {}=' in config file {}".format( + real_section, unknown, filename + ) + ) + + # [paths] is special + if cp.has_section('paths'): + for option in cp.options('paths'): + self.paths[option] = cp.getlist('paths', option) + any_set = True + + # plugins can have options + for plugin in self.plugins: + if cp.has_section(plugin): + self.plugin_options[plugin] = cp.get_section(plugin) + any_set = True + + # Was this file used as a config file? If it's specifically our file, + # then it was used. If we're piggybacking on someone else's file, + # then it was only used if we found some settings in it. + if our_file: + used = True + else: + used = any_set + + if used: + self.config_file = os.path.abspath(filename) + with open(filename, "rb") as f: + self._config_contents = f.read() + + return used + + def copy(self): + """Return a copy of the configuration.""" + return copy.deepcopy(self) + + CONCURRENCY_CHOICES = {"thread", "gevent", "greenlet", "eventlet", "multiprocessing"} + + CONFIG_FILE_OPTIONS = [ + # These are *args for _set_attr_from_config_option: + # (attr, where, type_="") + # + # attr is the attribute to set on the CoverageConfig object. + # where is the section:name to read from the configuration file. + # type_ is the optional type to apply, by using .getTYPE to read the + # configuration value from the file. + + # [run] + ('branch', 'run:branch', 'boolean'), + ('command_line', 'run:command_line'), + ('concurrency', 'run:concurrency', 'list'), + ('context', 'run:context'), + ('cover_pylib', 'run:cover_pylib', 'boolean'), + ('data_file', 'run:data_file'), + ('debug', 'run:debug', 'list'), + ('disable_warnings', 'run:disable_warnings', 'list'), + ('dynamic_context', 'run:dynamic_context'), + ('note', 'run:note'), + ('parallel', 'run:parallel', 'boolean'), + ('plugins', 'run:plugins', 'list'), + ('relative_files', 'run:relative_files', 'boolean'), + ('run_include', 'run:include', 'list'), + ('run_omit', 'run:omit', 'list'), + ('sigterm', 'run:sigterm', 'boolean'), + ('source', 'run:source', 'list'), + ('source_pkgs', 'run:source_pkgs', 'list'), + ('timid', 'run:timid', 'boolean'), + ('_crash', 'run:_crash'), + + # [report] + ('exclude_list', 'report:exclude_lines', 'regexlist'), + ('fail_under', 'report:fail_under', 'float'), + ('ignore_errors', 'report:ignore_errors', 'boolean'), + ('partial_always_list', 'report:partial_branches_always', 'regexlist'), + ('partial_list', 'report:partial_branches', 'regexlist'), + ('precision', 'report:precision', 'int'), + ('report_contexts', 'report:contexts', 'list'), + ('report_include', 'report:include', 'list'), + ('report_omit', 'report:omit', 'list'), + ('show_missing', 'report:show_missing', 'boolean'), + ('skip_covered', 'report:skip_covered', 'boolean'), + ('skip_empty', 'report:skip_empty', 'boolean'), + ('sort', 'report:sort'), + + # [html] + ('extra_css', 'html:extra_css'), + ('html_dir', 'html:directory'), + ('html_skip_covered', 'html:skip_covered', 'boolean'), + ('html_skip_empty', 'html:skip_empty', 'boolean'), + ('html_title', 'html:title'), + ('show_contexts', 'html:show_contexts', 'boolean'), + + # [xml] + ('xml_output', 'xml:output'), + ('xml_package_depth', 'xml:package_depth', 'int'), + + # [json] + ('json_output', 'json:output'), + ('json_pretty_print', 'json:pretty_print', 'boolean'), + ('json_show_contexts', 'json:show_contexts', 'boolean'), + + # [lcov] + ('lcov_output', 'lcov:output'), + ] + + def _set_attr_from_config_option(self, cp, attr, where, type_=''): + """Set an attribute on self if it exists in the ConfigParser. + + Returns True if the attribute was set. + + """ + section, option = where.split(":") + if cp.has_option(section, option): + method = getattr(cp, 'get' + type_) + setattr(self, attr, method(section, option)) + return True + return False + + def get_plugin_options(self, plugin): + """Get a dictionary of options for the plugin named `plugin`.""" + return self.plugin_options.get(plugin, {}) + + def set_option(self, option_name, value): + """Set an option in the configuration. + + `option_name` is a colon-separated string indicating the section and + option name. For example, the ``branch`` option in the ``[run]`` + section of the config file would be indicated with `"run:branch"`. + + `value` is the new value for the option. + + """ + # Special-cased options. + if option_name == "paths": + self.paths = value + return + + # Check all the hard-coded options. + for option_spec in self.CONFIG_FILE_OPTIONS: + attr, where = option_spec[:2] + if where == option_name: + setattr(self, attr, value) + return + + # See if it's a plugin option. + plugin_name, _, key = option_name.partition(":") + if key and plugin_name in self.plugins: + self.plugin_options.setdefault(plugin_name, {})[key] = value + return + + # If we get here, we didn't find the option. + raise ConfigError(f"No such option: {option_name!r}") + + def get_option(self, option_name): + """Get an option from the configuration. + + `option_name` is a colon-separated string indicating the section and + option name. For example, the ``branch`` option in the ``[run]`` + section of the config file would be indicated with `"run:branch"`. + + Returns the value of the option. + + """ + # Special-cased options. + if option_name == "paths": + return self.paths + + # Check all the hard-coded options. + for option_spec in self.CONFIG_FILE_OPTIONS: + attr, where = option_spec[:2] + if where == option_name: + return getattr(self, attr) + + # See if it's a plugin option. + plugin_name, _, key = option_name.partition(":") + if key and plugin_name in self.plugins: + return self.plugin_options.get(plugin_name, {}).get(key) + + # If we get here, we didn't find the option. + raise ConfigError(f"No such option: {option_name!r}") + + def post_process_file(self, path): + """Make final adjustments to a file path to make it usable.""" + return os.path.expanduser(path) + + def post_process(self): + """Make final adjustments to settings to make them usable.""" + self.data_file = self.post_process_file(self.data_file) + self.html_dir = self.post_process_file(self.html_dir) + self.xml_output = self.post_process_file(self.xml_output) + self.paths = collections.OrderedDict( + (k, [self.post_process_file(f) for f in v]) + for k, v in self.paths.items() + ) + + def debug_info(self): + """Make a list of (name, value) pairs for writing debug info.""" + return human_sorted_items( + (k, v) for k, v in self.__dict__.items() if not k.startswith("_") + ) + + +def config_files_to_try(config_file): + """What config files should we try to read? + + Returns a list of tuples: + (filename, is_our_file, was_file_specified) + """ + + # Some API users were specifying ".coveragerc" to mean the same as + # True, so make it so. + if config_file == ".coveragerc": + config_file = True + specified_file = (config_file is not True) + if not specified_file: + # No file was specified. Check COVERAGE_RCFILE. + config_file = os.environ.get('COVERAGE_RCFILE') + if config_file: + specified_file = True + if not specified_file: + # Still no file specified. Default to .coveragerc + config_file = ".coveragerc" + files_to_try = [ + (config_file, True, specified_file), + ("setup.cfg", False, False), + ("tox.ini", False, False), + ("pyproject.toml", False, False), + ] + return files_to_try + + +def read_coverage_config(config_file, warn, **kwargs): + """Read the coverage.py configuration. + + Arguments: + config_file: a boolean or string, see the `Coverage` class for the + tricky details. + warn: a function to issue warnings. + all others: keyword arguments from the `Coverage` class, used for + setting values in the configuration. + + Returns: + config: + config is a CoverageConfig object read from the appropriate + configuration file. + + """ + # Build the configuration from a number of sources: + # 1) defaults: + config = CoverageConfig() + + # 2) from a file: + if config_file: + files_to_try = config_files_to_try(config_file) + + for fname, our_file, specified_file in files_to_try: + config_read = config.from_file(fname, warn, our_file=our_file) + if config_read: + break + if specified_file: + raise ConfigError(f"Couldn't read {fname!r} as a config file") + + # $set_env.py: COVERAGE_DEBUG - Options for --debug. + # 3) from environment variables: + env_data_file = os.environ.get('COVERAGE_FILE') + if env_data_file: + config.data_file = env_data_file + debugs = os.environ.get('COVERAGE_DEBUG') + if debugs: + config.debug.extend(d.strip() for d in debugs.split(",")) + + # 4) from constructor arguments: + config.from_args(**kwargs) + + # Once all the config has been collected, there's a little post-processing + # to do. + config.post_process() + + return config diff --git a/utils/python-venv/Lib/site-packages/coverage/context.py b/utils/python-venv/Lib/site-packages/coverage/context.py new file mode 100644 index 0000000..6bb1f1e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/context.py @@ -0,0 +1,65 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Determine contexts for coverage.py""" + + +def combine_context_switchers(context_switchers): + """Create a single context switcher from multiple switchers. + + `context_switchers` is a list of functions that take a frame as an + argument and return a string to use as the new context label. + + Returns a function that composites `context_switchers` functions, or None + if `context_switchers` is an empty list. + + When invoked, the combined switcher calls `context_switchers` one-by-one + until a string is returned. The combined switcher returns None if all + `context_switchers` return None. + """ + if not context_switchers: + return None + + if len(context_switchers) == 1: + return context_switchers[0] + + def should_start_context(frame): + """The combiner for multiple context switchers.""" + for switcher in context_switchers: + new_context = switcher(frame) + if new_context is not None: + return new_context + return None + + return should_start_context + + +def should_start_context_test_function(frame): + """Is this frame calling a test_* function?""" + co_name = frame.f_code.co_name + if co_name.startswith("test") or co_name == "runTest": + return qualname_from_frame(frame) + return None + + +def qualname_from_frame(frame): + """Get a qualified name for the code running in `frame`.""" + co = frame.f_code + fname = co.co_name + method = None + if co.co_argcount and co.co_varnames[0] == "self": + self = frame.f_locals.get("self", None) + method = getattr(self, fname, None) + + if method is None: + func = frame.f_globals.get(fname) + if func is None: + return None + return func.__module__ + "." + fname + + func = getattr(method, "__func__", None) + if func is None: + cls = self.__class__ + return cls.__module__ + "." + cls.__name__ + "." + fname + + return func.__module__ + "." + func.__qualname__ diff --git a/utils/python-venv/Lib/site-packages/coverage/control.py b/utils/python-venv/Lib/site-packages/coverage/control.py new file mode 100644 index 0000000..5e1e54b --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/control.py @@ -0,0 +1,1232 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Core control stuff for coverage.py.""" + +import atexit +import collections +import contextlib +import os +import os.path +import platform +import signal +import sys +import threading +import time +import warnings + +from coverage import env +from coverage.annotate import AnnotateReporter +from coverage.collector import Collector, CTracer +from coverage.config import read_coverage_config +from coverage.context import should_start_context_test_function, combine_context_switchers +from coverage.data import CoverageData, combine_parallel_data +from coverage.debug import DebugControl, short_stack, write_formatted_info +from coverage.disposition import disposition_debug_msg +from coverage.exceptions import ConfigError, CoverageException, CoverageWarning, PluginError +from coverage.files import PathAliases, abs_file, relative_filename, set_relative_directory +from coverage.html import HtmlReporter +from coverage.inorout import InOrOut +from coverage.jsonreport import JsonReporter +from coverage.lcovreport import LcovReporter +from coverage.misc import bool_or_none, join_regex, human_sorted +from coverage.misc import DefaultValue, ensure_dir_for_file, isolate_module +from coverage.plugin import FileReporter +from coverage.plugin_support import Plugins +from coverage.python import PythonFileReporter +from coverage.report import render_report +from coverage.results import Analysis +from coverage.summary import SummaryReporter +from coverage.xmlreport import XmlReporter + +try: + from coverage.multiproc import patch_multiprocessing +except ImportError: # pragma: only jython + # Jython has no multiprocessing module. + patch_multiprocessing = None + +os = isolate_module(os) + +@contextlib.contextmanager +def override_config(cov, **kwargs): + """Temporarily tweak the configuration of `cov`. + + The arguments are applied to `cov.config` with the `from_args` method. + At the end of the with-statement, the old configuration is restored. + """ + original_config = cov.config + cov.config = cov.config.copy() + try: + cov.config.from_args(**kwargs) + yield + finally: + cov.config = original_config + + +DEFAULT_DATAFILE = DefaultValue("MISSING") +_DEFAULT_DATAFILE = DEFAULT_DATAFILE # Just in case, for backwards compatibility + +class Coverage: + """Programmatic access to coverage.py. + + To use:: + + from coverage import Coverage + + cov = Coverage() + cov.start() + #.. call your code .. + cov.stop() + cov.html_report(directory='covhtml') + + Note: in keeping with Python custom, names starting with underscore are + not part of the public API. They might stop working at any point. Please + limit yourself to documented methods to avoid problems. + + Methods can raise any of the exceptions described in :ref:`api_exceptions`. + + """ + + # The stack of started Coverage instances. + _instances = [] + + @classmethod + def current(cls): + """Get the latest started `Coverage` instance, if any. + + Returns: a `Coverage` instance, or None. + + .. versionadded:: 5.0 + + """ + if cls._instances: + return cls._instances[-1] + else: + return None + + def __init__( + self, data_file=DEFAULT_DATAFILE, data_suffix=None, cover_pylib=None, + auto_data=False, timid=None, branch=None, config_file=True, + source=None, source_pkgs=None, omit=None, include=None, debug=None, + concurrency=None, check_preimported=False, context=None, + messages=False, + ): # pylint: disable=too-many-arguments + """ + Many of these arguments duplicate and override values that can be + provided in a configuration file. Parameters that are missing here + will use values from the config file. + + `data_file` is the base name of the data file to use. The config value + defaults to ".coverage". None can be provided to prevent writing a data + file. `data_suffix` is appended (with a dot) to `data_file` to create + the final file name. If `data_suffix` is simply True, then a suffix is + created with the machine and process identity included. + + `cover_pylib` is a boolean determining whether Python code installed + with the Python interpreter is measured. This includes the Python + standard library and any packages installed with the interpreter. + + If `auto_data` is true, then any existing data file will be read when + coverage measurement starts, and data will be saved automatically when + measurement stops. + + If `timid` is true, then a slower and simpler trace function will be + used. This is important for some environments where manipulation of + tracing functions breaks the faster trace function. + + If `branch` is true, then branch coverage will be measured in addition + to the usual statement coverage. + + `config_file` determines what configuration file to read: + + * If it is ".coveragerc", it is interpreted as if it were True, + for backward compatibility. + + * If it is a string, it is the name of the file to read. If the + file can't be read, it is an error. + + * If it is True, then a few standard files names are tried + (".coveragerc", "setup.cfg", "tox.ini"). It is not an error for + these files to not be found. + + * If it is False, then no configuration file is read. + + `source` is a list of file paths or package names. Only code located + in the trees indicated by the file paths or package names will be + measured. + + `source_pkgs` is a list of package names. It works the same as + `source`, but can be used to name packages where the name can also be + interpreted as a file path. + + `include` and `omit` are lists of file name patterns. Files that match + `include` will be measured, files that match `omit` will not. Each + will also accept a single string argument. + + `debug` is a list of strings indicating what debugging information is + desired. + + `concurrency` is a string indicating the concurrency library being used + in the measured code. Without this, coverage.py will get incorrect + results if these libraries are in use. Valid strings are "greenlet", + "eventlet", "gevent", "multiprocessing", or "thread" (the default). + This can also be a list of these strings. + + If `check_preimported` is true, then when coverage is started, the + already-imported files will be checked to see if they should be + measured by coverage. Importing measured files before coverage is + started can mean that code is missed. + + `context` is a string to use as the :ref:`static context + ` label for collected data. + + If `messages` is true, some messages will be printed to stdout + indicating what is happening. + + .. versionadded:: 4.0 + The `concurrency` parameter. + + .. versionadded:: 4.2 + The `concurrency` parameter can now be a list of strings. + + .. versionadded:: 5.0 + The `check_preimported` and `context` parameters. + + .. versionadded:: 5.3 + The `source_pkgs` parameter. + + .. versionadded:: 6.0 + The `messages` parameter. + + """ + # data_file=None means no disk file at all. data_file missing means + # use the value from the config file. + self._no_disk = data_file is None + if data_file is DEFAULT_DATAFILE: + data_file = None + + self.config = None + + # This is injectable by tests. + self._debug_file = None + + self._auto_load = self._auto_save = auto_data + self._data_suffix_specified = data_suffix + + # Is it ok for no data to be collected? + self._warn_no_data = True + self._warn_unimported_source = True + self._warn_preimported_source = check_preimported + self._no_warn_slugs = None + self._messages = messages + + # A record of all the warnings that have been issued. + self._warnings = [] + + # Other instance attributes, set later. + self._data = self._collector = None + self._plugins = None + self._inorout = None + self._data_suffix = self._run_suffix = None + self._exclude_re = None + self._debug = None + self._file_mapper = None + self._old_sigterm = None + + # State machine variables: + # Have we initialized everything? + self._inited = False + self._inited_for_start = False + # Have we started collecting and not stopped it? + self._started = False + # Should we write the debug output? + self._should_write_debug = True + + # Build our configuration from a number of sources. + self.config = read_coverage_config( + config_file=config_file, warn=self._warn, + data_file=data_file, cover_pylib=cover_pylib, timid=timid, + branch=branch, parallel=bool_or_none(data_suffix), + source=source, source_pkgs=source_pkgs, run_omit=omit, run_include=include, debug=debug, + report_omit=omit, report_include=include, + concurrency=concurrency, context=context, + ) + + # If we have sub-process measurement happening automatically, then we + # want any explicit creation of a Coverage object to mean, this process + # is already coverage-aware, so don't auto-measure it. By now, the + # auto-creation of a Coverage object has already happened. But we can + # find it and tell it not to save its data. + if not env.METACOV: + _prevent_sub_process_measurement() + + def _init(self): + """Set all the initial state. + + This is called by the public methods to initialize state. This lets us + construct a :class:`Coverage` object, then tweak its state before this + function is called. + + """ + if self._inited: + return + + self._inited = True + + # Create and configure the debugging controller. COVERAGE_DEBUG_FILE + # is an environment variable, the name of a file to append debug logs + # to. + self._debug = DebugControl(self.config.debug, self._debug_file) + + if "multiprocessing" in (self.config.concurrency or ()): + # Multi-processing uses parallel for the subprocesses, so also use + # it for the main process. + self.config.parallel = True + + # _exclude_re is a dict that maps exclusion list names to compiled regexes. + self._exclude_re = {} + + set_relative_directory() + self._file_mapper = relative_filename if self.config.relative_files else abs_file + + # Load plugins + self._plugins = Plugins.load_plugins(self.config.plugins, self.config, self._debug) + + # Run configuring plugins. + for plugin in self._plugins.configurers: + # We need an object with set_option and get_option. Either self or + # self.config will do. Choosing randomly stops people from doing + # other things with those objects, against the public API. Yes, + # this is a bit childish. :) + plugin.configure([self, self.config][int(time.time()) % 2]) + + def _post_init(self): + """Stuff to do after everything is initialized.""" + if self._should_write_debug: + self._should_write_debug = False + self._write_startup_debug() + + # '[run] _crash' will raise an exception if the value is close by in + # the call stack, for testing error handling. + if self.config._crash and self.config._crash in short_stack(limit=4): + raise Exception(f"Crashing because called by {self.config._crash}") + + def _write_startup_debug(self): + """Write out debug info at startup if needed.""" + wrote_any = False + with self._debug.without_callers(): + if self._debug.should("config"): + config_info = self.config.debug_info() + write_formatted_info(self._debug.write, "config", config_info) + wrote_any = True + + if self._debug.should("sys"): + write_formatted_info(self._debug.write, "sys", self.sys_info()) + for plugin in self._plugins: + header = "sys: " + plugin._coverage_plugin_name + info = plugin.sys_info() + write_formatted_info(self._debug.write, header, info) + wrote_any = True + + if self._debug.should("pybehave"): + write_formatted_info(self._debug.write, "pybehave", env.debug_info()) + wrote_any = True + + if wrote_any: + write_formatted_info(self._debug.write, "end", ()) + + def _should_trace(self, filename, frame): + """Decide whether to trace execution in `filename`. + + Calls `_should_trace_internal`, and returns the FileDisposition. + + """ + disp = self._inorout.should_trace(filename, frame) + if self._debug.should('trace'): + self._debug.write(disposition_debug_msg(disp)) + return disp + + def _check_include_omit_etc(self, filename, frame): + """Check a file name against the include/omit/etc, rules, verbosely. + + Returns a boolean: True if the file should be traced, False if not. + + """ + reason = self._inorout.check_include_omit_etc(filename, frame) + if self._debug.should('trace'): + if not reason: + msg = f"Including {filename!r}" + else: + msg = f"Not including {filename!r}: {reason}" + self._debug.write(msg) + + return not reason + + def _warn(self, msg, slug=None, once=False): + """Use `msg` as a warning. + + For warning suppression, use `slug` as the shorthand. + + If `once` is true, only show this warning once (determined by the + slug.) + + """ + if self._no_warn_slugs is None: + if self.config is not None: + self._no_warn_slugs = list(self.config.disable_warnings) + + if self._no_warn_slugs is not None: + if slug in self._no_warn_slugs: + # Don't issue the warning + return + + self._warnings.append(msg) + if slug: + msg = f"{msg} ({slug})" + if self._debug is not None and self._debug.should('pid'): + msg = f"[{os.getpid()}] {msg}" + warnings.warn(msg, category=CoverageWarning, stacklevel=2) + + if once: + self._no_warn_slugs.append(slug) + + def _message(self, msg): + """Write a message to the user, if configured to do so.""" + if self._messages: + print(msg) + + def get_option(self, option_name): + """Get an option from the configuration. + + `option_name` is a colon-separated string indicating the section and + option name. For example, the ``branch`` option in the ``[run]`` + section of the config file would be indicated with `"run:branch"`. + + Returns the value of the option. The type depends on the option + selected. + + As a special case, an `option_name` of ``"paths"`` will return an + OrderedDict with the entire ``[paths]`` section value. + + .. versionadded:: 4.0 + + """ + return self.config.get_option(option_name) + + def set_option(self, option_name, value): + """Set an option in the configuration. + + `option_name` is a colon-separated string indicating the section and + option name. For example, the ``branch`` option in the ``[run]`` + section of the config file would be indicated with ``"run:branch"``. + + `value` is the new value for the option. This should be an + appropriate Python value. For example, use True for booleans, not the + string ``"True"``. + + As an example, calling: + + .. code-block:: python + + cov.set_option("run:branch", True) + + has the same effect as this configuration file: + + .. code-block:: ini + + [run] + branch = True + + As a special case, an `option_name` of ``"paths"`` will replace the + entire ``[paths]`` section. The value should be an OrderedDict. + + .. versionadded:: 4.0 + + """ + self.config.set_option(option_name, value) + + def load(self): + """Load previously-collected coverage data from the data file.""" + self._init() + if self._collector: + self._collector.reset() + should_skip = self.config.parallel and not os.path.exists(self.config.data_file) + if not should_skip: + self._init_data(suffix=None) + self._post_init() + if not should_skip: + self._data.read() + + def _init_for_start(self): + """Initialization for start()""" + # Construct the collector. + concurrency = self.config.concurrency or [] + if "multiprocessing" in concurrency: + if not patch_multiprocessing: + raise ConfigError( # pragma: only jython + "multiprocessing is not supported on this Python" + ) + if self.config.config_file is None: + raise ConfigError("multiprocessing requires a configuration file") + patch_multiprocessing(rcfile=self.config.config_file) + + dycon = self.config.dynamic_context + if not dycon or dycon == "none": + context_switchers = [] + elif dycon == "test_function": + context_switchers = [should_start_context_test_function] + else: + raise ConfigError(f"Don't understand dynamic_context setting: {dycon!r}") + + context_switchers.extend( + plugin.dynamic_context for plugin in self._plugins.context_switchers + ) + + should_start_context = combine_context_switchers(context_switchers) + + self._collector = Collector( + should_trace=self._should_trace, + check_include=self._check_include_omit_etc, + should_start_context=should_start_context, + file_mapper=self._file_mapper, + timid=self.config.timid, + branch=self.config.branch, + warn=self._warn, + concurrency=concurrency, + ) + + suffix = self._data_suffix_specified + if suffix: + if not isinstance(suffix, str): + # if data_suffix=True, use .machinename.pid.random + suffix = True + elif self.config.parallel: + if suffix is None: + suffix = True + elif not isinstance(suffix, str): + suffix = bool(suffix) + else: + suffix = None + + self._init_data(suffix) + + self._collector.use_data(self._data, self.config.context) + + # Early warning if we aren't going to be able to support plugins. + if self._plugins.file_tracers and not self._collector.supports_plugins: + self._warn( + "Plugin file tracers ({}) aren't supported with {}".format( + ", ".join( + plugin._coverage_plugin_name + for plugin in self._plugins.file_tracers + ), + self._collector.tracer_name(), + ) + ) + for plugin in self._plugins.file_tracers: + plugin._coverage_enabled = False + + # Create the file classifying substructure. + self._inorout = InOrOut( + warn=self._warn, + debug=(self._debug if self._debug.should('trace') else None), + ) + self._inorout.configure(self.config) + self._inorout.plugins = self._plugins + self._inorout.disp_class = self._collector.file_disposition_class + + # It's useful to write debug info after initing for start. + self._should_write_debug = True + + # Register our clean-up handlers. + atexit.register(self._atexit) + if self.config.sigterm: + is_main = (threading.current_thread() == threading.main_thread()) + if is_main and not env.WINDOWS: + # The Python docs seem to imply that SIGTERM works uniformly even + # on Windows, but that's not my experience, and this agrees: + # https://stackoverflow.com/questions/35772001/x/35792192#35792192 + self._old_sigterm = signal.signal(signal.SIGTERM, self._on_sigterm) + + def _init_data(self, suffix): + """Create a data file if we don't have one yet.""" + if self._data is None: + # Create the data file. We do this at construction time so that the + # data file will be written into the directory where the process + # started rather than wherever the process eventually chdir'd to. + ensure_dir_for_file(self.config.data_file) + self._data = CoverageData( + basename=self.config.data_file, + suffix=suffix, + warn=self._warn, + debug=self._debug, + no_disk=self._no_disk, + ) + + def start(self): + """Start measuring code coverage. + + Coverage measurement only occurs in functions called after + :meth:`start` is invoked. Statements in the same scope as + :meth:`start` won't be measured. + + Once you invoke :meth:`start`, you must also call :meth:`stop` + eventually, or your process might not shut down cleanly. + + """ + self._init() + if not self._inited_for_start: + self._inited_for_start = True + self._init_for_start() + self._post_init() + + # Issue warnings for possible problems. + self._inorout.warn_conflicting_settings() + + # See if we think some code that would eventually be measured has + # already been imported. + if self._warn_preimported_source: + self._inorout.warn_already_imported_files() + + if self._auto_load: + self.load() + + self._collector.start() + self._started = True + self._instances.append(self) + + def stop(self): + """Stop measuring code coverage.""" + if self._instances: + if self._instances[-1] is self: + self._instances.pop() + if self._started: + self._collector.stop() + self._started = False + + def _atexit(self, event="atexit"): + """Clean up on process shutdown.""" + if self._debug.should("process"): + self._debug.write(f"{event}: pid: {os.getpid()}, instance: {self!r}") + if self._started: + self.stop() + if self._auto_save: + self.save() + + def _on_sigterm(self, signum_unused, frame_unused): + """A handler for signal.SIGTERM.""" + self._atexit("sigterm") + # Statements after here won't be seen by metacov because we just wrote + # the data, and are about to kill the process. + signal.signal(signal.SIGTERM, self._old_sigterm) # pragma: not covered + os.kill(os.getpid(), signal.SIGTERM) # pragma: not covered + + def erase(self): + """Erase previously collected coverage data. + + This removes the in-memory data collected in this session as well as + discarding the data file. + + """ + self._init() + self._post_init() + if self._collector: + self._collector.reset() + self._init_data(suffix=None) + self._data.erase(parallel=self.config.parallel) + self._data = None + self._inited_for_start = False + + def switch_context(self, new_context): + """Switch to a new dynamic context. + + `new_context` is a string to use as the :ref:`dynamic context + ` label for collected data. If a :ref:`static + context ` is in use, the static and dynamic context + labels will be joined together with a pipe character. + + Coverage collection must be started already. + + .. versionadded:: 5.0 + + """ + if not self._started: # pragma: part started + raise CoverageException("Cannot switch context, coverage is not started") + + if self._collector.should_start_context: + self._warn("Conflicting dynamic contexts", slug="dynamic-conflict", once=True) + + self._collector.switch_context(new_context) + + def clear_exclude(self, which='exclude'): + """Clear the exclude list.""" + self._init() + setattr(self.config, which + "_list", []) + self._exclude_regex_stale() + + def exclude(self, regex, which='exclude'): + """Exclude source lines from execution consideration. + + A number of lists of regular expressions are maintained. Each list + selects lines that are treated differently during reporting. + + `which` determines which list is modified. The "exclude" list selects + lines that are not considered executable at all. The "partial" list + indicates lines with branches that are not taken. + + `regex` is a regular expression. The regex is added to the specified + list. If any of the regexes in the list is found in a line, the line + is marked for special treatment during reporting. + + """ + self._init() + excl_list = getattr(self.config, which + "_list") + excl_list.append(regex) + self._exclude_regex_stale() + + def _exclude_regex_stale(self): + """Drop all the compiled exclusion regexes, a list was modified.""" + self._exclude_re.clear() + + def _exclude_regex(self, which): + """Return a compiled regex for the given exclusion list.""" + if which not in self._exclude_re: + excl_list = getattr(self.config, which + "_list") + self._exclude_re[which] = join_regex(excl_list) + return self._exclude_re[which] + + def get_exclude_list(self, which='exclude'): + """Return a list of excluded regex patterns. + + `which` indicates which list is desired. See :meth:`exclude` for the + lists that are available, and their meaning. + + """ + self._init() + return getattr(self.config, which + "_list") + + def save(self): + """Save the collected coverage data to the data file.""" + data = self.get_data() + data.write() + + def combine(self, data_paths=None, strict=False, keep=False): + """Combine together a number of similarly-named coverage data files. + + All coverage data files whose name starts with `data_file` (from the + coverage() constructor) will be read, and combined together into the + current measurements. + + `data_paths` is a list of files or directories from which data should + be combined. If no list is passed, then the data files from the + directory indicated by the current data file (probably the current + directory) will be combined. + + If `strict` is true, then it is an error to attempt to combine when + there are no data files to combine. + + If `keep` is true, then original input data files won't be deleted. + + .. versionadded:: 4.0 + The `data_paths` parameter. + + .. versionadded:: 4.3 + The `strict` parameter. + + .. versionadded: 5.5 + The `keep` parameter. + """ + self._init() + self._init_data(suffix=None) + self._post_init() + self.get_data() + + aliases = None + if self.config.paths: + aliases = PathAliases( + debugfn=(self._debug.write if self._debug.should("pathmap") else None), + relative=self.config.relative_files, + ) + for paths in self.config.paths.values(): + result = paths[0] + for pattern in paths[1:]: + aliases.add(pattern, result) + + combine_parallel_data( + self._data, + aliases=aliases, + data_paths=data_paths, + strict=strict, + keep=keep, + message=self._message, + ) + + def get_data(self): + """Get the collected data. + + Also warn about various problems collecting data. + + Returns a :class:`coverage.CoverageData`, the collected coverage data. + + .. versionadded:: 4.0 + + """ + self._init() + self._init_data(suffix=None) + self._post_init() + + for plugin in self._plugins: + if not plugin._coverage_enabled: + self._collector.plugin_was_disabled(plugin) + + if self._collector and self._collector.flush_data(): + self._post_save_work() + + return self._data + + def _post_save_work(self): + """After saving data, look for warnings, post-work, etc. + + Warn about things that should have happened but didn't. + Look for unexecuted files. + + """ + # If there are still entries in the source_pkgs_unmatched list, + # then we never encountered those packages. + if self._warn_unimported_source: + self._inorout.warn_unimported_source() + + # Find out if we got any data. + if not self._data and self._warn_no_data: + self._warn("No data was collected.", slug="no-data-collected") + + # Touch all the files that could have executed, so that we can + # mark completely unexecuted files as 0% covered. + if self._data is not None: + file_paths = collections.defaultdict(list) + for file_path, plugin_name in self._inorout.find_possibly_unexecuted_files(): + file_path = self._file_mapper(file_path) + file_paths[plugin_name].append(file_path) + for plugin_name, paths in file_paths.items(): + self._data.touch_files(paths, plugin_name) + + if self.config.note: + self._warn("The '[run] note' setting is no longer supported.") + + # Backward compatibility with version 1. + def analysis(self, morf): + """Like `analysis2` but doesn't return excluded line numbers.""" + f, s, _, m, mf = self.analysis2(morf) + return f, s, m, mf + + def analysis2(self, morf): + """Analyze a module. + + `morf` is a module or a file name. It will be analyzed to determine + its coverage statistics. The return value is a 5-tuple: + + * The file name for the module. + * A list of line numbers of executable statements. + * A list of line numbers of excluded statements. + * A list of line numbers of statements not run (missing from + execution). + * A readable formatted string of the missing line numbers. + + The analysis uses the source file itself and the current measured + coverage data. + + """ + analysis = self._analyze(morf) + return ( + analysis.filename, + sorted(analysis.statements), + sorted(analysis.excluded), + sorted(analysis.missing), + analysis.missing_formatted(), + ) + + def _analyze(self, it): + """Analyze a single morf or code unit. + + Returns an `Analysis` object. + + """ + # All reporting comes through here, so do reporting initialization. + self._init() + self._post_init() + + data = self.get_data() + if not isinstance(it, FileReporter): + it = self._get_file_reporter(it) + + return Analysis(data, self.config.precision, it, self._file_mapper) + + def _get_file_reporter(self, morf): + """Get a FileReporter for a module or file name.""" + plugin = None + file_reporter = "python" + + if isinstance(morf, str): + mapped_morf = self._file_mapper(morf) + plugin_name = self._data.file_tracer(mapped_morf) + if plugin_name: + plugin = self._plugins.get(plugin_name) + + if plugin: + file_reporter = plugin.file_reporter(mapped_morf) + if file_reporter is None: + raise PluginError( + "Plugin {!r} did not provide a file reporter for {!r}.".format( + plugin._coverage_plugin_name, morf + ) + ) + + if file_reporter == "python": + file_reporter = PythonFileReporter(morf, self) + + return file_reporter + + def _get_file_reporters(self, morfs=None): + """Get a list of FileReporters for a list of modules or file names. + + For each module or file name in `morfs`, find a FileReporter. Return + the list of FileReporters. + + If `morfs` is a single module or file name, this returns a list of one + FileReporter. If `morfs` is empty or None, then the list of all files + measured is used to find the FileReporters. + + """ + if not morfs: + morfs = self._data.measured_files() + + # Be sure we have a collection. + if not isinstance(morfs, (list, tuple, set)): + morfs = [morfs] + + file_reporters = [self._get_file_reporter(morf) for morf in morfs] + return file_reporters + + def report( + self, morfs=None, show_missing=None, ignore_errors=None, + file=None, omit=None, include=None, skip_covered=None, + contexts=None, skip_empty=None, precision=None, sort=None + ): + """Write a textual summary report to `file`. + + Each module in `morfs` is listed, with counts of statements, executed + statements, missing statements, and a list of lines missed. + + If `show_missing` is true, then details of which lines or branches are + missing will be included in the report. If `ignore_errors` is true, + then a failure while reporting a single file will not stop the entire + report. + + `file` is a file-like object, suitable for writing. + + `include` is a list of file name patterns. Files that match will be + included in the report. Files matching `omit` will not be included in + the report. + + If `skip_covered` is true, don't report on files with 100% coverage. + + If `skip_empty` is true, don't report on empty files (those that have + no statements). + + `contexts` is a list of regular expressions. Only data from + :ref:`dynamic contexts ` that match one of those + expressions (using :func:`re.search `) will be + included in the report. + + `precision` is the number of digits to display after the decimal + point for percentages. + + All of the arguments default to the settings read from the + :ref:`configuration file `. + + Returns a float, the total percentage covered. + + .. versionadded:: 4.0 + The `skip_covered` parameter. + + .. versionadded:: 5.0 + The `contexts` and `skip_empty` parameters. + + .. versionadded:: 5.2 + The `precision` parameter. + + """ + with override_config( + self, + ignore_errors=ignore_errors, report_omit=omit, report_include=include, + show_missing=show_missing, skip_covered=skip_covered, + report_contexts=contexts, skip_empty=skip_empty, precision=precision, + sort=sort + ): + reporter = SummaryReporter(self) + return reporter.report(morfs, outfile=file) + + def annotate( + self, morfs=None, directory=None, ignore_errors=None, + omit=None, include=None, contexts=None, + ): + """Annotate a list of modules. + + .. note:: + + This method has been obsoleted by more modern reporting tools, + including the :meth:`html_report` method. It will be removed in a + future version. + + Each module in `morfs` is annotated. The source is written to a new + file, named with a ",cover" suffix, with each line prefixed with a + marker to indicate the coverage of the line. Covered lines have ">", + excluded lines have "-", and missing lines have "!". + + See :meth:`report` for other arguments. + + """ + print("The annotate command will be removed in a future version.") + print("Get in touch if you still use it: ned@nedbatchelder.com") + + with override_config(self, + ignore_errors=ignore_errors, report_omit=omit, + report_include=include, report_contexts=contexts, + ): + reporter = AnnotateReporter(self) + reporter.report(morfs, directory=directory) + + def html_report( + self, morfs=None, directory=None, ignore_errors=None, + omit=None, include=None, extra_css=None, title=None, + skip_covered=None, show_contexts=None, contexts=None, + skip_empty=None, precision=None, + ): + """Generate an HTML report. + + The HTML is written to `directory`. The file "index.html" is the + overview starting point, with links to more detailed pages for + individual modules. + + `extra_css` is a path to a file of other CSS to apply on the page. + It will be copied into the HTML directory. + + `title` is a text string (not HTML) to use as the title of the HTML + report. + + See :meth:`report` for other arguments. + + Returns a float, the total percentage covered. + + .. note:: + + The HTML report files are generated incrementally based on the + source files and coverage results. If you modify the report files, + the changes will not be considered. You should be careful about + changing the files in the report folder. + + """ + with override_config(self, + ignore_errors=ignore_errors, report_omit=omit, report_include=include, + html_dir=directory, extra_css=extra_css, html_title=title, + html_skip_covered=skip_covered, show_contexts=show_contexts, report_contexts=contexts, + html_skip_empty=skip_empty, precision=precision, + ): + reporter = HtmlReporter(self) + ret = reporter.report(morfs) + return ret + + def xml_report( + self, morfs=None, outfile=None, ignore_errors=None, + omit=None, include=None, contexts=None, skip_empty=None, + ): + """Generate an XML report of coverage results. + + The report is compatible with Cobertura reports. + + Each module in `morfs` is included in the report. `outfile` is the + path to write the file to, "-" will write to stdout. + + See :meth:`report` for other arguments. + + Returns a float, the total percentage covered. + + """ + with override_config(self, + ignore_errors=ignore_errors, report_omit=omit, report_include=include, + xml_output=outfile, report_contexts=contexts, skip_empty=skip_empty, + ): + return render_report(self.config.xml_output, XmlReporter(self), morfs, self._message) + + def json_report( + self, morfs=None, outfile=None, ignore_errors=None, + omit=None, include=None, contexts=None, pretty_print=None, + show_contexts=None + ): + """Generate a JSON report of coverage results. + + Each module in `morfs` is included in the report. `outfile` is the + path to write the file to, "-" will write to stdout. + + See :meth:`report` for other arguments. + + Returns a float, the total percentage covered. + + .. versionadded:: 5.0 + + """ + with override_config(self, + ignore_errors=ignore_errors, report_omit=omit, report_include=include, + json_output=outfile, report_contexts=contexts, json_pretty_print=pretty_print, + json_show_contexts=show_contexts + ): + return render_report(self.config.json_output, JsonReporter(self), morfs, self._message) + + def lcov_report( + self, morfs=None, outfile=None, ignore_errors=None, + omit=None, include=None, contexts=None, + ): + """Generate an LCOV report of coverage results. + + Each module in 'morfs' is included in the report. 'outfile' is the + path to write the file to, "-" will write to stdout. + + See :meth 'report' for other arguments. + + .. versionadded:: 6.3 + """ + with override_config(self, + ignore_errors=ignore_errors, report_omit=omit, report_include=include, + lcov_output=outfile, report_contexts=contexts, + ): + return render_report(self.config.lcov_output, LcovReporter(self), morfs, self._message) + + def sys_info(self): + """Return a list of (key, value) pairs showing internal information.""" + + import coverage as covmod + + self._init() + self._post_init() + + def plugin_info(plugins): + """Make an entry for the sys_info from a list of plug-ins.""" + entries = [] + for plugin in plugins: + entry = plugin._coverage_plugin_name + if not plugin._coverage_enabled: + entry += " (disabled)" + entries.append(entry) + return entries + + info = [ + ('coverage_version', covmod.__version__), + ('coverage_module', covmod.__file__), + ('tracer', self._collector.tracer_name() if self._collector else "-none-"), + ('CTracer', 'available' if CTracer else "unavailable"), + ('plugins.file_tracers', plugin_info(self._plugins.file_tracers)), + ('plugins.configurers', plugin_info(self._plugins.configurers)), + ('plugins.context_switchers', plugin_info(self._plugins.context_switchers)), + ('configs_attempted', self.config.attempted_config_files), + ('configs_read', self.config.config_files_read), + ('config_file', self.config.config_file), + ('config_contents', + repr(self.config._config_contents) + if self.config._config_contents + else '-none-' + ), + ('data_file', self._data.data_filename() if self._data is not None else "-none-"), + ('python', sys.version.replace('\n', '')), + ('platform', platform.platform()), + ('implementation', platform.python_implementation()), + ('executable', sys.executable), + ('def_encoding', sys.getdefaultencoding()), + ('fs_encoding', sys.getfilesystemencoding()), + ('pid', os.getpid()), + ('cwd', os.getcwd()), + ('path', sys.path), + ('environment', human_sorted( + f"{k} = {v}" + for k, v in os.environ.items() + if ( + any(slug in k for slug in ("COV", "PY")) or + (k in ("HOME", "TEMP", "TMP")) + ) + )), + ('command_line', " ".join(getattr(sys, 'argv', ['-none-']))), + ] + + if self._inorout: + info.extend(self._inorout.sys_info()) + + info.extend(CoverageData.sys_info()) + + return info + + +# Mega debugging... +# $set_env.py: COVERAGE_DEBUG_CALLS - Lots and lots of output about calls to Coverage. +if int(os.environ.get("COVERAGE_DEBUG_CALLS", 0)): # pragma: debugging + from coverage.debug import decorate_methods, show_calls + + Coverage = decorate_methods(show_calls(show_args=True), butnot=['get_data'])(Coverage) + + +def process_startup(): + """Call this at Python start-up to perhaps measure coverage. + + If the environment variable COVERAGE_PROCESS_START is defined, coverage + measurement is started. The value of the variable is the config file + to use. + + There are two ways to configure your Python installation to invoke this + function when Python starts: + + #. Create or append to sitecustomize.py to add these lines:: + + import coverage + coverage.process_startup() + + #. Create a .pth file in your Python installation containing:: + + import coverage; coverage.process_startup() + + Returns the :class:`Coverage` instance that was started, or None if it was + not started by this call. + + """ + cps = os.environ.get("COVERAGE_PROCESS_START") + if not cps: + # No request for coverage, nothing to do. + return None + + # This function can be called more than once in a process. This happens + # because some virtualenv configurations make the same directory visible + # twice in sys.path. This means that the .pth file will be found twice, + # and executed twice, executing this function twice. We set a global + # flag (an attribute on this function) to indicate that coverage.py has + # already been started, so we can avoid doing it twice. + # + # https://github.com/nedbat/coveragepy/issues/340 has more details. + + if hasattr(process_startup, "coverage"): + # We've annotated this function before, so we must have already + # started coverage.py in this process. Nothing to do. + return None + + cov = Coverage(config_file=cps) + process_startup.coverage = cov + cov._warn_no_data = False + cov._warn_unimported_source = False + cov._warn_preimported_source = False + cov._auto_save = True + cov.start() + + return cov + + +def _prevent_sub_process_measurement(): + """Stop any subprocess auto-measurement from writing data.""" + auto_created_coverage = getattr(process_startup, "coverage", None) + if auto_created_coverage is not None: + auto_created_coverage._auto_save = False diff --git a/utils/python-venv/Lib/site-packages/coverage/data.py b/utils/python-venv/Lib/site-packages/coverage/data.py new file mode 100644 index 0000000..4bdfe30 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/data.py @@ -0,0 +1,171 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Coverage data for coverage.py. + +This file had the 4.x JSON data support, which is now gone. This file still +has storage-agnostic helpers, and is kept to avoid changing too many imports. +CoverageData is now defined in sqldata.py, and imported here to keep the +imports working. + +""" + +import glob +import os.path + +from coverage.exceptions import CoverageException, NoDataError +from coverage.misc import file_be_gone, human_sorted, plural +from coverage.sqldata import CoverageData + + +def line_counts(data, fullpath=False): + """Return a dict summarizing the line coverage data. + + Keys are based on the file names, and values are the number of executed + lines. If `fullpath` is true, then the keys are the full pathnames of + the files, otherwise they are the basenames of the files. + + Returns a dict mapping file names to counts of lines. + + """ + summ = {} + if fullpath: + # pylint: disable=unnecessary-lambda-assignment + filename_fn = lambda f: f + else: + filename_fn = os.path.basename + for filename in data.measured_files(): + summ[filename_fn(filename)] = len(data.lines(filename)) + return summ + + +def add_data_to_hash(data, filename, hasher): + """Contribute `filename`'s data to the `hasher`. + + `hasher` is a `coverage.misc.Hasher` instance to be updated with + the file's data. It should only get the results data, not the run + data. + + """ + if data.has_arcs(): + hasher.update(sorted(data.arcs(filename) or [])) + else: + hasher.update(sorted(data.lines(filename) or [])) + hasher.update(data.file_tracer(filename)) + + +def combinable_files(data_file, data_paths=None): + """Make a list of data files to be combined. + + `data_file` is a path to a data file. `data_paths` is a list of files or + directories of files. + + Returns a list of absolute file paths. + """ + data_dir, local = os.path.split(os.path.abspath(data_file)) + + data_paths = data_paths or [data_dir] + files_to_combine = [] + for p in data_paths: + if os.path.isfile(p): + files_to_combine.append(os.path.abspath(p)) + elif os.path.isdir(p): + pattern = glob.escape(os.path.join(os.path.abspath(p), local)) +".*" + files_to_combine.extend(glob.glob(pattern)) + else: + raise NoDataError(f"Couldn't combine from non-existent path '{p}'") + return files_to_combine + + +def combine_parallel_data( + data, aliases=None, data_paths=None, strict=False, keep=False, message=None, +): + """Combine a number of data files together. + + `data` is a CoverageData. + + Treat `data.filename` as a file prefix, and combine the data from all + of the data files starting with that prefix plus a dot. + + If `aliases` is provided, it's a `PathAliases` object that is used to + re-map paths to match the local machine's. + + If `data_paths` is provided, it is a list of directories or files to + combine. Directories are searched for files that start with + `data.filename` plus dot as a prefix, and those files are combined. + + If `data_paths` is not provided, then the directory portion of + `data.filename` is used as the directory to search for data files. + + Unless `keep` is True every data file found and combined is then deleted from disk. If a file + cannot be read, a warning will be issued, and the file will not be + deleted. + + If `strict` is true, and no files are found to combine, an error is + raised. + + """ + files_to_combine = combinable_files(data.base_filename(), data_paths) + + if strict and not files_to_combine: + raise NoDataError("No data to combine") + + files_combined = 0 + for f in files_to_combine: + if f == data.data_filename(): + # Sometimes we are combining into a file which is one of the + # parallel files. Skip that file. + if data._debug.should('dataio'): + data._debug.write(f"Skipping combining ourself: {f!r}") + continue + if data._debug.should('dataio'): + data._debug.write(f"Combining data file {f!r}") + try: + new_data = CoverageData(f, debug=data._debug) + new_data.read() + except CoverageException as exc: + if data._warn: + # The CoverageException has the file name in it, so just + # use the message as the warning. + data._warn(str(exc)) + else: + data.update(new_data, aliases=aliases) + files_combined += 1 + if message: + try: + file_name = os.path.relpath(f) + except ValueError: + # ValueError can be raised under Windows when os.getcwd() returns a + # folder from a different drive than the drive of f, in which case + # we print the original value of f instead of its relative path + file_name = f + message(f"Combined data file {file_name}") + if not keep: + if data._debug.should('dataio'): + data._debug.write(f"Deleting combined data file {f!r}") + file_be_gone(f) + + if strict and not files_combined: + raise NoDataError("No usable data files") + + +def debug_data_file(filename): + """Implementation of 'coverage debug data'.""" + data = CoverageData(filename) + filename = data.data_filename() + print(f"path: {filename}") + if not os.path.exists(filename): + print("No data collected: file doesn't exist") + return + data.read() + print(f"has_arcs: {data.has_arcs()!r}") + summary = line_counts(data, fullpath=True) + filenames = human_sorted(summary.keys()) + nfiles = len(filenames) + print(f"{nfiles} file{plural(nfiles)}:") + for f in filenames: + line = f"{f}: {summary[f]} line{plural(summary[f])}" + plugin = data.file_tracer(f) + if plugin: + line += f" [{plugin}]" + print(line) diff --git a/utils/python-venv/Lib/site-packages/coverage/debug.py b/utils/python-venv/Lib/site-packages/coverage/debug.py new file mode 100644 index 0000000..4286bc5 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/debug.py @@ -0,0 +1,421 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Control of and utilities for debugging.""" + +import contextlib +import functools +import inspect +import io +import itertools +import os +import pprint +import reprlib +import sys +import types +import _thread + +from coverage.misc import isolate_module + +os = isolate_module(os) + + +# When debugging, it can be helpful to force some options, especially when +# debugging the configuration mechanisms you usually use to control debugging! +# This is a list of forced debugging options. +FORCED_DEBUG = [] +FORCED_DEBUG_FILE = None + + +class DebugControl: + """Control and output for debugging.""" + + show_repr_attr = False # For SimpleReprMixin + + def __init__(self, options, output): + """Configure the options and output file for debugging.""" + self.options = list(options) + FORCED_DEBUG + self.suppress_callers = False + + filters = [] + if self.should('pid'): + filters.append(add_pid_and_tid) + self.output = DebugOutputFile.get_one( + output, + show_process=self.should('process'), + filters=filters, + ) + self.raw_output = self.output.outfile + + def __repr__(self): + return f"" + + def should(self, option): + """Decide whether to output debug information in category `option`.""" + if option == "callers" and self.suppress_callers: + return False + return (option in self.options) + + @contextlib.contextmanager + def without_callers(self): + """A context manager to prevent call stacks from being logged.""" + old = self.suppress_callers + self.suppress_callers = True + try: + yield + finally: + self.suppress_callers = old + + def write(self, msg): + """Write a line of debug output. + + `msg` is the line to write. A newline will be appended. + + """ + self.output.write(msg+"\n") + if self.should('self'): + caller_self = inspect.stack()[1][0].f_locals.get('self') + if caller_self is not None: + self.output.write(f"self: {caller_self!r}\n") + if self.should('callers'): + dump_stack_frames(out=self.output, skip=1) + self.output.flush() + + +class DebugControlString(DebugControl): + """A `DebugControl` that writes to a StringIO, for testing.""" + def __init__(self, options): + super().__init__(options, io.StringIO()) + + def get_output(self): + """Get the output text from the `DebugControl`.""" + return self.raw_output.getvalue() + + +class NoDebugging: + """A replacement for DebugControl that will never try to do anything.""" + def should(self, option): # pylint: disable=unused-argument + """Should we write debug messages? Never.""" + return False + + +def info_header(label): + """Make a nice header string.""" + return "--{:-<60s}".format(" "+label+" ") + + +def info_formatter(info): + """Produce a sequence of formatted lines from info. + + `info` is a sequence of pairs (label, data). The produced lines are + nicely formatted, ready to print. + + """ + info = list(info) + if not info: + return + label_len = 30 + assert all(len(l) < label_len for l, _ in info) + for label, data in info: + if data == []: + data = "-none-" + if isinstance(data, tuple) and len(repr(tuple(data))) < 30: + # Convert to tuple to scrub namedtuples. + yield "%*s: %r" % (label_len, label, tuple(data)) + elif isinstance(data, (list, set, tuple)): + prefix = "%*s:" % (label_len, label) + for e in data: + yield "%*s %s" % (label_len+1, prefix, e) + prefix = "" + else: + yield "%*s: %s" % (label_len, label, data) + + +def write_formatted_info(write, header, info): + """Write a sequence of (label,data) pairs nicely. + + `write` is a function write(str) that accepts each line of output. + `header` is a string to start the section. `info` is a sequence of + (label, data) pairs, where label is a str, and data can be a single + value, or a list/set/tuple. + + """ + write(info_header(header)) + for line in info_formatter(info): + write(f" {line}") + + +def short_stack(limit=None, skip=0): + """Return a string summarizing the call stack. + + The string is multi-line, with one line per stack frame. Each line shows + the function name, the file name, and the line number: + + ... + start_import_stop : /Users/ned/coverage/trunk/tests/coveragetest.py @95 + import_local_file : /Users/ned/coverage/trunk/tests/coveragetest.py @81 + import_local_file : /Users/ned/coverage/trunk/coverage/backward.py @159 + ... + + `limit` is the number of frames to include, defaulting to all of them. + + `skip` is the number of frames to skip, so that debugging functions can + call this and not be included in the result. + + """ + stack = inspect.stack()[limit:skip:-1] + return "\n".join("%30s : %s:%d" % (t[3], t[1], t[2]) for t in stack) + + +def dump_stack_frames(limit=None, out=None, skip=0): + """Print a summary of the stack to stdout, or someplace else.""" + out = out or sys.stdout + out.write(short_stack(limit=limit, skip=skip+1)) + out.write("\n") + + +def clipped_repr(text, numchars=50): + """`repr(text)`, but limited to `numchars`.""" + r = reprlib.Repr() + r.maxstring = numchars + return r.repr(text) + + +def short_id(id64): + """Given a 64-bit id, make a shorter 16-bit one.""" + id16 = 0 + for offset in range(0, 64, 16): + id16 ^= id64 >> offset + return id16 & 0xFFFF + + +def add_pid_and_tid(text): + """A filter to add pid and tid to debug messages.""" + # Thread ids are useful, but too long. Make a shorter one. + tid = f"{short_id(_thread.get_ident()):04x}" + text = f"{os.getpid():5d}.{tid}: {text}" + return text + + +class SimpleReprMixin: + """A mixin implementing a simple __repr__.""" + simple_repr_ignore = ['simple_repr_ignore', '$coverage.object_id'] + + def __repr__(self): + show_attrs = ( + (k, v) for k, v in self.__dict__.items() + if getattr(v, "show_repr_attr", True) + and not callable(v) + and k not in self.simple_repr_ignore + ) + return "<{klass} @0x{id:x} {attrs}>".format( + klass=self.__class__.__name__, + id=id(self), + attrs=" ".join(f"{k}={v!r}" for k, v in show_attrs), + ) + + +def simplify(v): # pragma: debugging + """Turn things which are nearly dict/list/etc into dict/list/etc.""" + if isinstance(v, dict): + return {k:simplify(vv) for k, vv in v.items()} + elif isinstance(v, (list, tuple)): + return type(v)(simplify(vv) for vv in v) + elif hasattr(v, "__dict__"): + return simplify({'.'+k: v for k, v in v.__dict__.items()}) + else: + return v + + +def pp(v): # pragma: debugging + """Debug helper to pretty-print data, including SimpleNamespace objects.""" + # Might not be needed in 3.9+ + pprint.pprint(simplify(v)) + + +def filter_text(text, filters): + """Run `text` through a series of filters. + + `filters` is a list of functions. Each takes a string and returns a + string. Each is run in turn. + + Returns: the final string that results after all of the filters have + run. + + """ + clean_text = text.rstrip() + ending = text[len(clean_text):] + text = clean_text + for fn in filters: + lines = [] + for line in text.splitlines(): + lines.extend(fn(line).splitlines()) + text = "\n".join(lines) + return text + ending + + +class CwdTracker: # pragma: debugging + """A class to add cwd info to debug messages.""" + def __init__(self): + self.cwd = None + + def filter(self, text): + """Add a cwd message for each new cwd.""" + cwd = os.getcwd() + if cwd != self.cwd: + text = f"cwd is now {cwd!r}\n" + text + self.cwd = cwd + return text + + +class DebugOutputFile: # pragma: debugging + """A file-like object that includes pid and cwd information.""" + def __init__(self, outfile, show_process, filters): + self.outfile = outfile + self.show_process = show_process + self.filters = list(filters) + + if self.show_process: + self.filters.insert(0, CwdTracker().filter) + self.write(f"New process: executable: {sys.executable!r}\n") + self.write("New process: cmd: {!r}\n".format(getattr(sys, 'argv', None))) + if hasattr(os, 'getppid'): + self.write(f"New process: pid: {os.getpid()!r}, parent pid: {os.getppid()!r}\n") + + SYS_MOD_NAME = '$coverage.debug.DebugOutputFile.the_one' + SINGLETON_ATTR = 'the_one_and_is_interim' + + @classmethod + def get_one(cls, fileobj=None, show_process=True, filters=(), interim=False): + """Get a DebugOutputFile. + + If `fileobj` is provided, then a new DebugOutputFile is made with it. + + If `fileobj` isn't provided, then a file is chosen + (COVERAGE_DEBUG_FILE, or stderr), and a process-wide singleton + DebugOutputFile is made. + + `show_process` controls whether the debug file adds process-level + information, and filters is a list of other message filters to apply. + + `filters` are the text filters to apply to the stream to annotate with + pids, etc. + + If `interim` is true, then a future `get_one` can replace this one. + + """ + if fileobj is not None: + # Make DebugOutputFile around the fileobj passed. + return cls(fileobj, show_process, filters) + + # Because of the way igor.py deletes and re-imports modules, + # this class can be defined more than once. But we really want + # a process-wide singleton. So stash it in sys.modules instead of + # on a class attribute. Yes, this is aggressively gross. + singleton_module = sys.modules.get(cls.SYS_MOD_NAME) + the_one, is_interim = getattr(singleton_module, cls.SINGLETON_ATTR, (None, True)) + if the_one is None or is_interim: + if fileobj is None: + debug_file_name = os.environ.get("COVERAGE_DEBUG_FILE", FORCED_DEBUG_FILE) + if debug_file_name in ("stdout", "stderr"): + fileobj = getattr(sys, debug_file_name) + elif debug_file_name: + fileobj = open(debug_file_name, "a") + else: + fileobj = sys.stderr + the_one = cls(fileobj, show_process, filters) + singleton_module = types.ModuleType(cls.SYS_MOD_NAME) + setattr(singleton_module, cls.SINGLETON_ATTR, (the_one, interim)) + sys.modules[cls.SYS_MOD_NAME] = singleton_module + return the_one + + def write(self, text): + """Just like file.write, but filter through all our filters.""" + self.outfile.write(filter_text(text, self.filters)) + self.outfile.flush() + + def flush(self): + """Flush our file.""" + self.outfile.flush() + + +def log(msg, stack=False): # pragma: debugging + """Write a log message as forcefully as possible.""" + out = DebugOutputFile.get_one(interim=True) + out.write(msg+"\n") + if stack: + dump_stack_frames(out=out, skip=1) + + +def decorate_methods(decorator, butnot=(), private=False): # pragma: debugging + """A class decorator to apply a decorator to methods.""" + def _decorator(cls): + for name, meth in inspect.getmembers(cls, inspect.isroutine): + if name not in cls.__dict__: + continue + if name != "__init__": + if not private and name.startswith("_"): + continue + if name in butnot: + continue + setattr(cls, name, decorator(meth)) + return cls + return _decorator + + +def break_in_pudb(func): # pragma: debugging + """A function decorator to stop in the debugger for each call.""" + @functools.wraps(func) + def _wrapper(*args, **kwargs): + import pudb + sys.stdout = sys.__stdout__ + pudb.set_trace() + return func(*args, **kwargs) + return _wrapper + + +OBJ_IDS = itertools.count() +CALLS = itertools.count() +OBJ_ID_ATTR = "$coverage.object_id" + +def show_calls(show_args=True, show_stack=False, show_return=False): # pragma: debugging + """A method decorator to debug-log each call to the function.""" + def _decorator(func): + @functools.wraps(func) + def _wrapper(self, *args, **kwargs): + oid = getattr(self, OBJ_ID_ATTR, None) + if oid is None: + oid = f"{os.getpid():08d} {next(OBJ_IDS):04d}" + setattr(self, OBJ_ID_ATTR, oid) + extra = "" + if show_args: + eargs = ", ".join(map(repr, args)) + ekwargs = ", ".join("{}={!r}".format(*item) for item in kwargs.items()) + extra += "(" + extra += eargs + if eargs and ekwargs: + extra += ", " + extra += ekwargs + extra += ")" + if show_stack: + extra += " @ " + extra += "; ".join(_clean_stack_line(l) for l in short_stack().splitlines()) + callid = next(CALLS) + msg = f"{oid} {callid:04d} {func.__name__}{extra}\n" + DebugOutputFile.get_one(interim=True).write(msg) + ret = func(self, *args, **kwargs) + if show_return: + msg = f"{oid} {callid:04d} {func.__name__} return {ret!r}\n" + DebugOutputFile.get_one(interim=True).write(msg) + return ret + return _wrapper + return _decorator + + +def _clean_stack_line(s): # pragma: debugging + """Simplify some paths in a stack trace, for compactness.""" + s = s.strip() + s = s.replace(os.path.dirname(__file__) + '/', '') + s = s.replace(os.path.dirname(os.__file__) + '/', '') + s = s.replace(sys.prefix + '/', '') + return s diff --git a/utils/python-venv/Lib/site-packages/coverage/disposition.py b/utils/python-venv/Lib/site-packages/coverage/disposition.py new file mode 100644 index 0000000..34819f4 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/disposition.py @@ -0,0 +1,41 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Simple value objects for tracking what to do with files.""" + + +class FileDisposition: + """A simple value type for recording what to do with a file.""" + + def __repr__(self): + return f"" + + +# FileDisposition "methods": FileDisposition is a pure value object, so it can +# be implemented in either C or Python. Acting on them is done with these +# functions. + +def disposition_init(cls, original_filename): + """Construct and initialize a new FileDisposition object.""" + disp = cls() + disp.original_filename = original_filename + disp.canonical_filename = original_filename + disp.source_filename = None + disp.trace = False + disp.reason = "" + disp.file_tracer = None + disp.has_dynamic_filename = False + return disp + + +def disposition_debug_msg(disp): + """Make a nice debug message of what the FileDisposition is doing.""" + if disp.trace: + msg = f"Tracing {disp.original_filename!r}" + if disp.original_filename != disp.source_filename: + msg += f" as {disp.source_filename!r}" + if disp.file_tracer: + msg += f": will be traced by {disp.file_tracer!r}" + else: + msg = f"Not tracing {disp.original_filename!r}: {disp.reason}" + return msg diff --git a/utils/python-venv/Lib/site-packages/coverage/env.py b/utils/python-venv/Lib/site-packages/coverage/env.py new file mode 100644 index 0000000..1341169 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/env.py @@ -0,0 +1,151 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Determine facts about the environment.""" + +import os +import platform +import sys + +# Operating systems. +WINDOWS = sys.platform == "win32" +LINUX = sys.platform.startswith("linux") +OSX = sys.platform == "darwin" + +# Python implementations. +CPYTHON = (platform.python_implementation() == "CPython") +PYPY = (platform.python_implementation() == "PyPy") +JYTHON = (platform.python_implementation() == "Jython") +IRONPYTHON = (platform.python_implementation() == "IronPython") + +# Python versions. We amend version_info with one more value, a zero if an +# official version, or 1 if built from source beyond an official version. +PYVERSION = sys.version_info + (int(platform.python_version()[-1] == "+"),) + +if PYPY: + PYPYVERSION = sys.pypy_version_info + +# Python behavior. +class PYBEHAVIOR: + """Flags indicating this Python's behavior.""" + + # Does Python conform to PEP626, Precise line numbers for debugging and other tools. + # https://www.python.org/dev/peps/pep-0626 + pep626 = CPYTHON and (PYVERSION > (3, 10, 0, 'alpha', 4)) + + # Is "if __debug__" optimized away? + if PYPY: + optimize_if_debug = True + else: + optimize_if_debug = not pep626 + + # Is "if not __debug__" optimized away? The exact details have changed + # across versions. + if pep626: + optimize_if_not_debug = 1 + elif PYPY: + if PYVERSION >= (3, 9): + optimize_if_not_debug = 2 + elif PYVERSION[:2] == (3, 8): + optimize_if_not_debug = 3 + else: + optimize_if_not_debug = 1 + else: + if PYVERSION >= (3, 8, 0, 'beta', 1): + optimize_if_not_debug = 2 + else: + optimize_if_not_debug = 1 + + # Can co_lnotab have negative deltas? + negative_lnotab = not (PYPY and PYPYVERSION < (7, 2)) + + # 3.7 changed how functions with only docstrings are numbered. + docstring_only_function = (not PYPY) and ((3, 7, 0, 'beta', 5) <= PYVERSION <= (3, 10)) + + # When a break/continue/return statement in a try block jumps to a finally + # block, does the finally block do the break/continue/return (pre-3.8), or + # does the finally jump back to the break/continue/return (3.8) to do the + # work? + finally_jumps_back = ((3, 8) <= PYVERSION < (3, 10)) + + # When a function is decorated, does the trace function get called for the + # @-line and also the def-line (new behavior in 3.8)? Or just the @-line + # (old behavior)? + trace_decorated_def = (CPYTHON and PYVERSION >= (3, 8)) or (PYPY and PYVERSION >= (3, 9)) + + # Functions are no longer claimed to start at their earliest decorator even though + # the decorators are traced? + def_ast_no_decorator = (PYPY and PYVERSION >= (3, 9)) + + # CPython 3.11 now jumps to the decorator line again while executing + # the decorator. + trace_decorator_line_again = (CPYTHON and PYVERSION > (3, 11, 0, 'alpha', 3, 0)) + + # Are while-true loops optimized into absolute jumps with no loop setup? + nix_while_true = (PYVERSION >= (3, 8)) + + # CPython 3.9a1 made sys.argv[0] and other reported files absolute paths. + report_absolute_files = ((CPYTHON or (PYPYVERSION >= (7, 3, 10))) and PYVERSION >= (3, 9)) + + # Lines after break/continue/return/raise are no longer compiled into the + # bytecode. They used to be marked as missing, now they aren't executable. + omit_after_jump = pep626 + + # PyPy has always omitted statements after return. + omit_after_return = omit_after_jump or PYPY + + # Modules used to have firstlineno equal to the line number of the first + # real line of code. Now they always start at 1. + module_firstline_1 = pep626 + + # Are "if 0:" lines (and similar) kept in the compiled code? + keep_constant_test = pep626 + + # When leaving a with-block, do we visit the with-line again for the exit? + exit_through_with = (PYVERSION >= (3, 10, 0, 'beta')) + + # Match-case construct. + match_case = (PYVERSION >= (3, 10)) + + # Some words are keywords in some places, identifiers in other places. + soft_keywords = (PYVERSION >= (3, 10)) + + # Modules start with a line numbered zero. This means empty modules have + # only a 0-number line, which is ignored, giving a truly empty module. + empty_is_empty = (PYVERSION >= (3, 11, 0, 'beta', 4)) + +# Coverage.py specifics. + +# Are we using the C-implemented trace function? +C_TRACER = os.getenv('COVERAGE_TEST_TRACER', 'c') == 'c' + +# Are we coverage-measuring ourselves? +METACOV = os.getenv('COVERAGE_COVERAGE', '') != '' + +# Are we running our test suite? +# Even when running tests, you can use COVERAGE_TESTING=0 to disable the +# test-specific behavior like contracts. +TESTING = os.getenv('COVERAGE_TESTING', '') == 'True' + +# Environment COVERAGE_NO_CONTRACTS=1 can turn off contracts while debugging +# tests to remove noise from stack traces. +# $set_env.py: COVERAGE_NO_CONTRACTS - Disable PyContracts to simplify stack traces. +USE_CONTRACTS = ( + TESTING + and not bool(int(os.environ.get("COVERAGE_NO_CONTRACTS", 0))) + and (PYVERSION < (3, 11)) +) + +def debug_info(): + """Return a list of (name, value) pairs for printing debug information.""" + info = [ + (name, value) for name, value in globals().items() + if not name.startswith("_") and + name not in {"PYBEHAVIOR", "debug_info"} and + not isinstance(value, type(os)) + ] + info += [ + (name, value) for name, value in PYBEHAVIOR.__dict__.items() + if not name.startswith("_") + ] + return sorted(info) diff --git a/utils/python-venv/Lib/site-packages/coverage/exceptions.py b/utils/python-venv/Lib/site-packages/coverage/exceptions.py new file mode 100644 index 0000000..c6a7f3d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/exceptions.py @@ -0,0 +1,72 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Exceptions coverage.py can raise.""" + + +class _BaseCoverageException(Exception): + """The base-base of all Coverage exceptions.""" + pass + + +class CoverageException(_BaseCoverageException): + """The base class of all exceptions raised by Coverage.py.""" + pass + + +class ConfigError(_BaseCoverageException): + """A problem with a config file, or a value in one.""" + pass + + +class DataError(CoverageException): + """An error in using a data file.""" + pass + +class NoDataError(CoverageException): + """We didn't have data to work with.""" + pass + + +class NoSource(CoverageException): + """We couldn't find the source for a module.""" + pass + + +class NoCode(NoSource): + """We couldn't find any code at all.""" + pass + + +class NotPython(CoverageException): + """A source file turned out not to be parsable Python.""" + pass + + +class PluginError(CoverageException): + """A plugin misbehaved.""" + pass + + +class _ExceptionDuringRun(CoverageException): + """An exception happened while running customer code. + + Construct it with three arguments, the values from `sys.exc_info`. + + """ + pass + + +class _StopEverything(_BaseCoverageException): + """An exception that means everything should stop. + + The CoverageTest class converts these to SkipTest, so that when running + tests, raising this exception will automatically skip the test. + + """ + pass + + +class CoverageWarning(Warning): + """A warning from Coverage.py.""" + pass diff --git a/utils/python-venv/Lib/site-packages/coverage/execfile.py b/utils/python-venv/Lib/site-packages/coverage/execfile.py new file mode 100644 index 0000000..b5d3a65 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/execfile.py @@ -0,0 +1,307 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Execute files of Python code.""" + +import importlib.machinery +import importlib.util +import inspect +import marshal +import os +import struct +import sys +import types + +from coverage import env +from coverage.exceptions import CoverageException, _ExceptionDuringRun, NoCode, NoSource +from coverage.files import canonical_filename, python_reported_file +from coverage.misc import isolate_module +from coverage.phystokens import compile_unicode +from coverage.python import get_python_source + +os = isolate_module(os) + + +PYC_MAGIC_NUMBER = importlib.util.MAGIC_NUMBER + +class DummyLoader: + """A shim for the pep302 __loader__, emulating pkgutil.ImpLoader. + + Currently only implements the .fullname attribute + """ + def __init__(self, fullname, *_args): + self.fullname = fullname + + +def find_module(modulename): + """Find the module named `modulename`. + + Returns the file path of the module, the name of the enclosing + package, and the spec. + """ + try: + spec = importlib.util.find_spec(modulename) + except ImportError as err: + raise NoSource(str(err)) from err + if not spec: + raise NoSource(f"No module named {modulename!r}") + pathname = spec.origin + packagename = spec.name + if spec.submodule_search_locations: + mod_main = modulename + ".__main__" + spec = importlib.util.find_spec(mod_main) + if not spec: + raise NoSource( + f"No module named {mod_main}; " + + f"{modulename!r} is a package and cannot be directly executed" + ) + pathname = spec.origin + packagename = spec.name + packagename = packagename.rpartition(".")[0] + return pathname, packagename, spec + + +class PyRunner: + """Multi-stage execution of Python code. + + This is meant to emulate real Python execution as closely as possible. + + """ + def __init__(self, args, as_module=False): + self.args = args + self.as_module = as_module + + self.arg0 = args[0] + self.package = self.modulename = self.pathname = self.loader = self.spec = None + + def prepare(self): + """Set sys.path properly. + + This needs to happen before any importing, and without importing anything. + """ + if self.as_module: + path0 = os.getcwd() + elif os.path.isdir(self.arg0): + # Running a directory means running the __main__.py file in that + # directory. + path0 = self.arg0 + else: + path0 = os.path.abspath(os.path.dirname(self.arg0)) + + if os.path.isdir(sys.path[0]): + # sys.path fakery. If we are being run as a command, then sys.path[0] + # is the directory of the "coverage" script. If this is so, replace + # sys.path[0] with the directory of the file we're running, or the + # current directory when running modules. If it isn't so, then we + # don't know what's going on, and just leave it alone. + top_file = inspect.stack()[-1][0].f_code.co_filename + sys_path_0_abs = os.path.abspath(sys.path[0]) + top_file_dir_abs = os.path.abspath(os.path.dirname(top_file)) + sys_path_0_abs = canonical_filename(sys_path_0_abs) + top_file_dir_abs = canonical_filename(top_file_dir_abs) + if sys_path_0_abs != top_file_dir_abs: + path0 = None + + else: + # sys.path[0] is a file. Is the next entry the directory containing + # that file? + if sys.path[1] == os.path.dirname(sys.path[0]): + # Can it be right to always remove that? + del sys.path[1] + + if path0 is not None: + sys.path[0] = python_reported_file(path0) + + def _prepare2(self): + """Do more preparation to run Python code. + + Includes finding the module to run and adjusting sys.argv[0]. + This method is allowed to import code. + + """ + if self.as_module: + self.modulename = self.arg0 + pathname, self.package, self.spec = find_module(self.modulename) + if self.spec is not None: + self.modulename = self.spec.name + self.loader = DummyLoader(self.modulename) + self.pathname = os.path.abspath(pathname) + self.args[0] = self.arg0 = self.pathname + elif os.path.isdir(self.arg0): + # Running a directory means running the __main__.py file in that + # directory. + for ext in [".py", ".pyc", ".pyo"]: + try_filename = os.path.join(self.arg0, "__main__" + ext) + # 3.8.10 changed how files are reported when running a + # directory. But I'm not sure how far this change is going to + # spread, so I'll just hard-code it here for now. + if env.PYVERSION >= (3, 8, 10): + try_filename = os.path.abspath(try_filename) + if os.path.exists(try_filename): + self.arg0 = try_filename + break + else: + raise NoSource(f"Can't find '__main__' module in '{self.arg0}'") + + # Make a spec. I don't know if this is the right way to do it. + try_filename = python_reported_file(try_filename) + self.spec = importlib.machinery.ModuleSpec("__main__", None, origin=try_filename) + self.spec.has_location = True + self.package = "" + self.loader = DummyLoader("__main__") + else: + self.loader = DummyLoader("__main__") + + self.arg0 = python_reported_file(self.arg0) + + def run(self): + """Run the Python code!""" + + self._prepare2() + + # Create a module to serve as __main__ + main_mod = types.ModuleType('__main__') + + from_pyc = self.arg0.endswith((".pyc", ".pyo")) + main_mod.__file__ = self.arg0 + if from_pyc: + main_mod.__file__ = main_mod.__file__[:-1] + if self.package is not None: + main_mod.__package__ = self.package + main_mod.__loader__ = self.loader + if self.spec is not None: + main_mod.__spec__ = self.spec + + main_mod.__builtins__ = sys.modules['builtins'] + + sys.modules['__main__'] = main_mod + + # Set sys.argv properly. + sys.argv = self.args + + try: + # Make a code object somehow. + if from_pyc: + code = make_code_from_pyc(self.arg0) + else: + code = make_code_from_py(self.arg0) + except CoverageException: + raise + except Exception as exc: + msg = f"Couldn't run '{self.arg0}' as Python code: {exc.__class__.__name__}: {exc}" + raise CoverageException(msg) from exc + + # Execute the code object. + # Return to the original directory in case the test code exits in + # a non-existent directory. + cwd = os.getcwd() + try: + exec(code, main_mod.__dict__) + except SystemExit: # pylint: disable=try-except-raise + # The user called sys.exit(). Just pass it along to the upper + # layers, where it will be handled. + raise + except Exception: + # Something went wrong while executing the user code. + # Get the exc_info, and pack them into an exception that we can + # throw up to the outer loop. We peel one layer off the traceback + # so that the coverage.py code doesn't appear in the final printed + # traceback. + typ, err, tb = sys.exc_info() + + # PyPy3 weirdness. If I don't access __context__, then somehow it + # is non-None when the exception is reported at the upper layer, + # and a nested exception is shown to the user. This getattr fixes + # it somehow? https://bitbucket.org/pypy/pypy/issue/1903 + getattr(err, '__context__', None) + + # Call the excepthook. + try: + err.__traceback__ = err.__traceback__.tb_next + sys.excepthook(typ, err, tb.tb_next) + except SystemExit: # pylint: disable=try-except-raise + raise + except Exception as exc: + # Getting the output right in the case of excepthook + # shenanigans is kind of involved. + sys.stderr.write("Error in sys.excepthook:\n") + typ2, err2, tb2 = sys.exc_info() + err2.__suppress_context__ = True + err2.__traceback__ = err2.__traceback__.tb_next + sys.__excepthook__(typ2, err2, tb2.tb_next) + sys.stderr.write("\nOriginal exception was:\n") + raise _ExceptionDuringRun(typ, err, tb.tb_next) from exc + else: + sys.exit(1) + finally: + os.chdir(cwd) + + +def run_python_module(args): + """Run a Python module, as though with ``python -m name args...``. + + `args` is the argument array to present as sys.argv, including the first + element naming the module being executed. + + This is a helper for tests, to encapsulate how to use PyRunner. + + """ + runner = PyRunner(args, as_module=True) + runner.prepare() + runner.run() + + +def run_python_file(args): + """Run a Python file as if it were the main program on the command line. + + `args` is the argument array to present as sys.argv, including the first + element naming the file being executed. `package` is the name of the + enclosing package, if any. + + This is a helper for tests, to encapsulate how to use PyRunner. + + """ + runner = PyRunner(args, as_module=False) + runner.prepare() + runner.run() + + +def make_code_from_py(filename): + """Get source from `filename` and make a code object of it.""" + # Open the source file. + try: + source = get_python_source(filename) + except (OSError, NoSource) as exc: + raise NoSource(f"No file to run: '{filename}'") from exc + + code = compile_unicode(source, filename, "exec") + return code + + +def make_code_from_pyc(filename): + """Get a code object from a .pyc file.""" + try: + fpyc = open(filename, "rb") + except OSError as exc: + raise NoCode(f"No file to run: '{filename}'") from exc + + with fpyc: + # First four bytes are a version-specific magic number. It has to + # match or we won't run the file. + magic = fpyc.read(4) + if magic != PYC_MAGIC_NUMBER: + raise NoCode(f"Bad magic number in .pyc file: {magic!r} != {PYC_MAGIC_NUMBER!r}") + + flags = struct.unpack('" + + def info(self): + """A list of strings for displaying when dumping state.""" + return self.original_paths + + def match(self, fpath): + """Does `fpath` indicate a file in one of our trees?""" + fpath = os.path.normcase(fpath) + for p in self.paths: + if fpath.startswith(p): + if fpath == p: + # This is the same file! + return True + if fpath[len(p)] == os.sep: + # This is a file in the directory + return True + return False + + +class ModuleMatcher: + """A matcher for modules in a tree.""" + def __init__(self, module_names, name="unknown"): + self.modules = list(module_names) + self.name = name + + def __repr__(self): + return f"" + + def info(self): + """A list of strings for displaying when dumping state.""" + return self.modules + + def match(self, module_name): + """Does `module_name` indicate a module in one of our packages?""" + if not module_name: + return False + + for m in self.modules: + if module_name.startswith(m): + if module_name == m: + return True + if module_name[len(m)] == '.': + # This is a module in the package + return True + + return False + + +class FnmatchMatcher: + """A matcher for files by file name pattern.""" + def __init__(self, pats, name="unknown"): + self.pats = list(pats) + self.re = fnmatches_to_regex(self.pats, case_insensitive=env.WINDOWS) + self.name = name + + def __repr__(self): + return f"" + + def info(self): + """A list of strings for displaying when dumping state.""" + return self.pats + + def match(self, fpath): + """Does `fpath` match one of our file name patterns?""" + return self.re.match(fpath) is not None + + +def sep(s): + """Find the path separator used in this string, or os.sep if none.""" + sep_match = re.search(r"[\\/]", s) + if sep_match: + the_sep = sep_match[0] + else: + the_sep = os.sep + return the_sep + + +def fnmatches_to_regex(patterns, case_insensitive=False, partial=False): + """Convert fnmatch patterns to a compiled regex that matches any of them. + + Slashes are always converted to match either slash or backslash, for + Windows support, even when running elsewhere. + + If `partial` is true, then the pattern will match if the target string + starts with the pattern. Otherwise, it must match the entire string. + + Returns: a compiled regex object. Use the .match method to compare target + strings. + + """ + regexes = (fnmatch.translate(pattern) for pattern in patterns) + # Python3.7 fnmatch translates "/" as "/". Before that, it translates as "\/", + # so we have to deal with maybe a backslash. + regexes = (re.sub(r"\\?/", r"[\\\\/]", regex) for regex in regexes) + + if partial: + # fnmatch always adds a \Z to match the whole string, which we don't + # want, so we remove the \Z. While removing it, we only replace \Z if + # followed by paren (introducing flags), or at end, to keep from + # destroying a literal \Z in the pattern. + regexes = (re.sub(r'\\Z(\(\?|$)', r'\1', regex) for regex in regexes) + + flags = 0 + if case_insensitive: + flags |= re.IGNORECASE + compiled = re.compile(join_regex(regexes), flags=flags) + + return compiled + + +class PathAliases: + """A collection of aliases for paths. + + When combining data files from remote machines, often the paths to source + code are different, for example, due to OS differences, or because of + serialized checkouts on continuous integration machines. + + A `PathAliases` object tracks a list of pattern/result pairs, and can + map a path through those aliases to produce a unified path. + + """ + def __init__(self, debugfn=None, relative=False): + self.aliases = [] # A list of (original_pattern, regex, result) + self.debugfn = debugfn or (lambda msg: 0) + self.relative = relative + self.pprinted = False + + def pprint(self): + """Dump the important parts of the PathAliases, for debugging.""" + self.debugfn(f"Aliases (relative={self.relative}):") + for original_pattern, regex, result in self.aliases: + self.debugfn(f" Rule: {original_pattern!r} -> {result!r} using regex {regex.pattern!r}") + + def add(self, pattern, result): + """Add the `pattern`/`result` pair to the list of aliases. + + `pattern` is an `fnmatch`-style pattern. `result` is a simple + string. When mapping paths, if a path starts with a match against + `pattern`, then that match is replaced with `result`. This models + isomorphic source trees being rooted at different places on two + different machines. + + `pattern` can't end with a wildcard component, since that would + match an entire tree, and not just its root. + + """ + original_pattern = pattern + pattern_sep = sep(pattern) + + if len(pattern) > 1: + pattern = pattern.rstrip(r"\/") + + # The pattern can't end with a wildcard component. + if pattern.endswith("*"): + raise ConfigError("Pattern must not end with wildcards.") + + # The pattern is meant to match a filepath. Let's make it absolute + # unless it already is, or is meant to match any prefix. + if not pattern.startswith('*') and not isabs_anywhere(pattern + pattern_sep): + pattern = abs_file(pattern) + if not pattern.endswith(pattern_sep): + pattern += pattern_sep + + # Make a regex from the pattern. + regex = fnmatches_to_regex([pattern], case_insensitive=True, partial=True) + + # Normalize the result: it must end with a path separator. + result_sep = sep(result) + result = result.rstrip(r"\/") + result_sep + self.aliases.append((original_pattern, regex, result)) + + def map(self, path): + """Map `path` through the aliases. + + `path` is checked against all of the patterns. The first pattern to + match is used to replace the root of the path with the result root. + Only one pattern is ever used. If no patterns match, `path` is + returned unchanged. + + The separator style in the result is made to match that of the result + in the alias. + + Returns the mapped path. If a mapping has happened, this is a + canonical path. If no mapping has happened, it is the original value + of `path` unchanged. + + """ + if not self.pprinted: + self.pprint() + self.pprinted = True + + for original_pattern, regex, result in self.aliases: + m = regex.match(path) + if m: + new = path.replace(m[0], result) + new = new.replace(sep(path), sep(result)) + if not self.relative: + new = canonical_filename(new) + self.debugfn( + f"Matched path {path!r} to rule {original_pattern!r} -> {result!r}, " + + f"producing {new!r}" + ) + return new + self.debugfn(f"No rules match, path {path!r} is unchanged") + return path + + +def find_python_files(dirname): + """Yield all of the importable Python files in `dirname`, recursively. + + To be importable, the files have to be in a directory with a __init__.py, + except for `dirname` itself, which isn't required to have one. The + assumption is that `dirname` was specified directly, so the user knows + best, but sub-directories are checked for a __init__.py to be sure we only + find the importable files. + + """ + for i, (dirpath, dirnames, filenames) in enumerate(os.walk(dirname)): + if i > 0 and '__init__.py' not in filenames: + # If a directory doesn't have __init__.py, then it isn't + # importable and neither are its files + del dirnames[:] + continue + for filename in filenames: + # We're only interested in files that look like reasonable Python + # files: Must end with .py or .pyw, and must not have certain funny + # characters that probably mean they are editor junk. + if re.match(r"^[^.#~!$@%^&*()+=,]+\.pyw?$", filename): + yield os.path.join(dirpath, filename) diff --git a/utils/python-venv/Lib/site-packages/coverage/fullcoverage/encodings.py b/utils/python-venv/Lib/site-packages/coverage/fullcoverage/encodings.py new file mode 100644 index 0000000..b884186 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/fullcoverage/encodings.py @@ -0,0 +1,54 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Imposter encodings module that installs a coverage-style tracer. + +This is NOT the encodings module; it is an imposter that sets up tracing +instrumentation and then replaces itself with the real encodings module. + +If the directory that holds this file is placed first in the PYTHONPATH when +using "coverage" to run Python's tests, then this file will become the very +first module imported by the internals of Python 3. It installs a +coverage.py-compatible trace function that can watch Standard Library modules +execute from the very earliest stages of Python's own boot process. This fixes +a problem with coverage.py - that it starts too late to trace the coverage of +many of the most fundamental modules in the Standard Library. + +""" + +import sys + +class FullCoverageTracer: + def __init__(self): + # `traces` is a list of trace events. Frames are tricky: the same + # frame object is used for a whole scope, with new line numbers + # written into it. So in one scope, all the frame objects are the + # same object, and will eventually all will point to the last line + # executed. So we keep the line numbers alongside the frames. + # The list looks like: + # + # traces = [ + # ((frame, event, arg), lineno), ... + # ] + # + self.traces = [] + + def fullcoverage_trace(self, *args): + frame, event, arg = args + if frame.f_lineno is not None: + # https://bugs.python.org/issue46911 + self.traces.append((args, frame.f_lineno)) + return self.fullcoverage_trace + +sys.settrace(FullCoverageTracer().fullcoverage_trace) + +# Remove our own directory from sys.path; remove ourselves from +# sys.modules; and re-import "encodings", which will be the real package +# this time. Note that the delete from sys.modules dictionary has to +# happen last, since all of the symbols in this module will become None +# at that exact moment, including "sys". + +parentdir = max(filter(__file__.startswith, sys.path), key=len) +sys.path.remove(parentdir) +del sys.modules['encodings'] +import encodings diff --git a/utils/python-venv/Lib/site-packages/coverage/html.py b/utils/python-venv/Lib/site-packages/coverage/html.py new file mode 100644 index 0000000..21b5189 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/html.py @@ -0,0 +1,550 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""HTML reporting for coverage.py.""" + +import datetime +import json +import os +import re +import shutil +import types + +import coverage +from coverage.data import add_data_to_hash +from coverage.exceptions import NoDataError +from coverage.files import flat_rootname +from coverage.misc import ensure_dir, file_be_gone, Hasher, isolate_module, format_local_datetime +from coverage.misc import human_sorted, plural +from coverage.report import get_analysis_to_report +from coverage.results import Numbers +from coverage.templite import Templite + +os = isolate_module(os) + + +def data_filename(fname): + """Return the path to an "htmlfiles" data file of ours. + """ + static_dir = os.path.join(os.path.dirname(__file__), "htmlfiles") + static_filename = os.path.join(static_dir, fname) + return static_filename + + +def read_data(fname): + """Return the contents of a data file of ours.""" + with open(data_filename(fname)) as data_file: + return data_file.read() + + +def write_html(fname, html): + """Write `html` to `fname`, properly encoded.""" + html = re.sub(r"(\A\s+)|(\s+$)", "", html, flags=re.MULTILINE) + "\n" + with open(fname, "wb") as fout: + fout.write(html.encode('ascii', 'xmlcharrefreplace')) + + +class HtmlDataGeneration: + """Generate structured data to be turned into HTML reports.""" + + EMPTY = "(empty)" + + def __init__(self, cov): + self.coverage = cov + self.config = self.coverage.config + data = self.coverage.get_data() + self.has_arcs = data.has_arcs() + if self.config.show_contexts: + if data.measured_contexts() == {""}: + self.coverage._warn("No contexts were measured") + data.set_query_contexts(self.config.report_contexts) + + def data_for_file(self, fr, analysis): + """Produce the data needed for one file's report.""" + if self.has_arcs: + missing_branch_arcs = analysis.missing_branch_arcs() + arcs_executed = analysis.arcs_executed() + + if self.config.show_contexts: + contexts_by_lineno = analysis.data.contexts_by_lineno(analysis.filename) + + lines = [] + + for lineno, tokens in enumerate(fr.source_token_lines(), start=1): + # Figure out how to mark this line. + category = None + short_annotations = [] + long_annotations = [] + + if lineno in analysis.excluded: + category = 'exc' + elif lineno in analysis.missing: + category = 'mis' + elif self.has_arcs and lineno in missing_branch_arcs: + category = 'par' + for b in missing_branch_arcs[lineno]: + if b < 0: + short_annotations.append("exit") + else: + short_annotations.append(b) + long_annotations.append(fr.missing_arc_description(lineno, b, arcs_executed)) + elif lineno in analysis.statements: + category = 'run' + + contexts = contexts_label = None + context_list = None + if category and self.config.show_contexts: + contexts = human_sorted(c or self.EMPTY for c in contexts_by_lineno.get(lineno, ())) + if contexts == [self.EMPTY]: + contexts_label = self.EMPTY + else: + contexts_label = f"{len(contexts)} ctx" + context_list = contexts + + lines.append(types.SimpleNamespace( + tokens=tokens, + number=lineno, + category=category, + statement=(lineno in analysis.statements), + contexts=contexts, + contexts_label=contexts_label, + context_list=context_list, + short_annotations=short_annotations, + long_annotations=long_annotations, + )) + + file_data = types.SimpleNamespace( + relative_filename=fr.relative_filename(), + nums=analysis.numbers, + lines=lines, + ) + + return file_data + + +class FileToReport: + """A file we're considering reporting.""" + def __init__(self, fr, analysis): + self.fr = fr + self.analysis = analysis + self.rootname = flat_rootname(fr.relative_filename()) + self.html_filename = self.rootname + ".html" + + +class HtmlReporter: + """HTML reporting.""" + + # These files will be copied from the htmlfiles directory to the output + # directory. + STATIC_FILES = [ + "style.css", + "coverage_html.js", + "keybd_closed.png", + "keybd_open.png", + "favicon_32.png", + ] + + def __init__(self, cov): + self.coverage = cov + self.config = self.coverage.config + self.directory = self.config.html_dir + + self.skip_covered = self.config.html_skip_covered + if self.skip_covered is None: + self.skip_covered = self.config.skip_covered + self.skip_empty = self.config.html_skip_empty + if self.skip_empty is None: + self.skip_empty = self.config.skip_empty + self.skipped_covered_count = 0 + self.skipped_empty_count = 0 + + title = self.config.html_title + + if self.config.extra_css: + self.extra_css = os.path.basename(self.config.extra_css) + else: + self.extra_css = None + + self.data = self.coverage.get_data() + self.has_arcs = self.data.has_arcs() + + self.file_summaries = [] + self.all_files_nums = [] + self.incr = IncrementalChecker(self.directory) + self.datagen = HtmlDataGeneration(self.coverage) + self.totals = Numbers(precision=self.config.precision) + self.directory_was_empty = False + self.first_fr = None + self.final_fr = None + + self.template_globals = { + # Functions available in the templates. + 'escape': escape, + 'pair': pair, + 'len': len, + + # Constants for this report. + '__url__': coverage.__url__, + '__version__': coverage.__version__, + 'title': title, + 'time_stamp': format_local_datetime(datetime.datetime.now()), + 'extra_css': self.extra_css, + 'has_arcs': self.has_arcs, + 'show_contexts': self.config.show_contexts, + + # Constants for all reports. + # These css classes determine which lines are highlighted by default. + 'category': { + 'exc': 'exc show_exc', + 'mis': 'mis show_mis', + 'par': 'par run show_par', + 'run': 'run', + }, + } + self.pyfile_html_source = read_data("pyfile.html") + self.source_tmpl = Templite(self.pyfile_html_source, self.template_globals) + + def report(self, morfs): + """Generate an HTML report for `morfs`. + + `morfs` is a list of modules or file names. + + """ + # Read the status data and check that this run used the same + # global data as the last run. + self.incr.read() + self.incr.check_global_data(self.config, self.pyfile_html_source) + + # Process all the files. For each page we need to supply a link + # to the next and previous page. + files_to_report = [] + + for fr, analysis in get_analysis_to_report(self.coverage, morfs): + ftr = FileToReport(fr, analysis) + should = self.should_report_file(ftr) + if should: + files_to_report.append(ftr) + else: + file_be_gone(os.path.join(self.directory, ftr.html_filename)) + + for i, ftr in enumerate(files_to_report): + if i == 0: + prev_html = "index.html" + else: + prev_html = files_to_report[i - 1].html_filename + if i == len(files_to_report) - 1: + next_html = "index.html" + else: + next_html = files_to_report[i + 1].html_filename + self.write_html_file(ftr, prev_html, next_html) + + if not self.all_files_nums: + raise NoDataError("No data to report.") + + self.totals = sum(self.all_files_nums) + + # Write the index file. + if files_to_report: + first_html = files_to_report[0].html_filename + final_html = files_to_report[-1].html_filename + else: + first_html = final_html = "index.html" + self.index_file(first_html, final_html) + + self.make_local_static_report_files() + return self.totals.n_statements and self.totals.pc_covered + + def make_directory(self): + """Make sure our htmlcov directory exists.""" + ensure_dir(self.directory) + if not os.listdir(self.directory): + self.directory_was_empty = True + + def make_local_static_report_files(self): + """Make local instances of static files for HTML report.""" + # The files we provide must always be copied. + for static in self.STATIC_FILES: + shutil.copyfile(data_filename(static), os.path.join(self.directory, static)) + + # Only write the .gitignore file if the directory was originally empty. + # .gitignore can't be copied from the source tree because it would + # prevent the static files from being checked in. + if self.directory_was_empty: + with open(os.path.join(self.directory, ".gitignore"), "w") as fgi: + fgi.write("# Created by coverage.py\n*\n") + + # The user may have extra CSS they want copied. + if self.extra_css: + shutil.copyfile(self.config.extra_css, os.path.join(self.directory, self.extra_css)) + + def should_report_file(self, ftr): + """Determine if we'll report this file.""" + # Get the numbers for this file. + nums = ftr.analysis.numbers + self.all_files_nums.append(nums) + + if self.skip_covered: + # Don't report on 100% files. + no_missing_lines = (nums.n_missing == 0) + no_missing_branches = (nums.n_partial_branches == 0) + if no_missing_lines and no_missing_branches: + # If there's an existing file, remove it. + self.skipped_covered_count += 1 + return False + + if self.skip_empty: + # Don't report on empty files. + if nums.n_statements == 0: + self.skipped_empty_count += 1 + return False + + return True + + def write_html_file(self, ftr, prev_html, next_html): + """Generate an HTML file for one source file.""" + self.make_directory() + + # Find out if the file on disk is already correct. + if self.incr.can_skip_file(self.data, ftr.fr, ftr.rootname): + self.file_summaries.append(self.incr.index_info(ftr.rootname)) + return + + # Write the HTML page for this file. + file_data = self.datagen.data_for_file(ftr.fr, ftr.analysis) + for ldata in file_data.lines: + # Build the HTML for the line. + html = [] + for tok_type, tok_text in ldata.tokens: + if tok_type == "ws": + html.append(escape(tok_text)) + else: + tok_html = escape(tok_text) or ' ' + html.append( + f'{tok_html}' + ) + ldata.html = ''.join(html) + + if ldata.short_annotations: + # 202F is NARROW NO-BREAK SPACE. + # 219B is RIGHTWARDS ARROW WITH STROKE. + ldata.annotate = ",   ".join( + f"{ldata.number} ↛ {d}" + for d in ldata.short_annotations + ) + else: + ldata.annotate = None + + if ldata.long_annotations: + longs = ldata.long_annotations + if len(longs) == 1: + ldata.annotate_long = longs[0] + else: + ldata.annotate_long = "{:d} missed branches: {}".format( + len(longs), + ", ".join( + f"{num:d}) {ann_long}" + for num, ann_long in enumerate(longs, start=1) + ), + ) + else: + ldata.annotate_long = None + + css_classes = [] + if ldata.category: + css_classes.append(self.template_globals['category'][ldata.category]) + ldata.css_class = ' '.join(css_classes) or "pln" + + html_path = os.path.join(self.directory, ftr.html_filename) + html = self.source_tmpl.render({ + **file_data.__dict__, + 'prev_html': prev_html, + 'next_html': next_html, + }) + write_html(html_path, html) + + # Save this file's information for the index file. + index_info = { + 'nums': ftr.analysis.numbers, + 'html_filename': ftr.html_filename, + 'relative_filename': ftr.fr.relative_filename(), + } + self.file_summaries.append(index_info) + self.incr.set_index_info(ftr.rootname, index_info) + + def index_file(self, first_html, final_html): + """Write the index.html file for this report.""" + self.make_directory() + index_tmpl = Templite(read_data("index.html"), self.template_globals) + + skipped_covered_msg = skipped_empty_msg = "" + if self.skipped_covered_count: + n = self.skipped_covered_count + skipped_covered_msg = f"{n} file{plural(n)} skipped due to complete coverage." + if self.skipped_empty_count: + n = self.skipped_empty_count + skipped_empty_msg = f"{n} empty file{plural(n)} skipped." + + html = index_tmpl.render({ + 'files': self.file_summaries, + 'totals': self.totals, + 'skipped_covered_msg': skipped_covered_msg, + 'skipped_empty_msg': skipped_empty_msg, + 'first_html': first_html, + 'final_html': final_html, + }) + + index_file = os.path.join(self.directory, "index.html") + write_html(index_file, html) + self.coverage._message(f"Wrote HTML report to {index_file}") + + # Write the latest hashes for next time. + self.incr.write() + + +class IncrementalChecker: + """Logic and data to support incremental reporting.""" + + STATUS_FILE = "status.json" + STATUS_FORMAT = 2 + + # pylint: disable=wrong-spelling-in-comment,useless-suppression + # The data looks like: + # + # { + # "format": 2, + # "globals": "540ee119c15d52a68a53fe6f0897346d", + # "version": "4.0a1", + # "files": { + # "cogapp___init__": { + # "hash": "e45581a5b48f879f301c0f30bf77a50c", + # "index": { + # "html_filename": "cogapp___init__.html", + # "relative_filename": "cogapp/__init__", + # "nums": [ 1, 14, 0, 0, 0, 0, 0 ] + # } + # }, + # ... + # "cogapp_whiteutils": { + # "hash": "8504bb427fc488c4176809ded0277d51", + # "index": { + # "html_filename": "cogapp_whiteutils.html", + # "relative_filename": "cogapp/whiteutils", + # "nums": [ 1, 59, 0, 1, 28, 2, 2 ] + # } + # } + # } + # } + + def __init__(self, directory): + self.directory = directory + self.reset() + + def reset(self): + """Initialize to empty. Causes all files to be reported.""" + self.globals = '' + self.files = {} + + def read(self): + """Read the information we stored last time.""" + usable = False + try: + status_file = os.path.join(self.directory, self.STATUS_FILE) + with open(status_file) as fstatus: + status = json.load(fstatus) + except (OSError, ValueError): + usable = False + else: + usable = True + if status['format'] != self.STATUS_FORMAT: + usable = False + elif status['version'] != coverage.__version__: + usable = False + + if usable: + self.files = {} + for filename, fileinfo in status['files'].items(): + fileinfo['index']['nums'] = Numbers(*fileinfo['index']['nums']) + self.files[filename] = fileinfo + self.globals = status['globals'] + else: + self.reset() + + def write(self): + """Write the current status.""" + status_file = os.path.join(self.directory, self.STATUS_FILE) + files = {} + for filename, fileinfo in self.files.items(): + fileinfo['index']['nums'] = fileinfo['index']['nums'].init_args() + files[filename] = fileinfo + + status = { + 'format': self.STATUS_FORMAT, + 'version': coverage.__version__, + 'globals': self.globals, + 'files': files, + } + with open(status_file, "w") as fout: + json.dump(status, fout, separators=(',', ':')) + + def check_global_data(self, *data): + """Check the global data that can affect incremental reporting.""" + m = Hasher() + for d in data: + m.update(d) + these_globals = m.hexdigest() + if self.globals != these_globals: + self.reset() + self.globals = these_globals + + def can_skip_file(self, data, fr, rootname): + """Can we skip reporting this file? + + `data` is a CoverageData object, `fr` is a `FileReporter`, and + `rootname` is the name being used for the file. + """ + m = Hasher() + m.update(fr.source().encode('utf-8')) + add_data_to_hash(data, fr.filename, m) + this_hash = m.hexdigest() + + that_hash = self.file_hash(rootname) + + if this_hash == that_hash: + # Nothing has changed to require the file to be reported again. + return True + else: + self.set_file_hash(rootname, this_hash) + return False + + def file_hash(self, fname): + """Get the hash of `fname`'s contents.""" + return self.files.get(fname, {}).get('hash', '') + + def set_file_hash(self, fname, val): + """Set the hash of `fname`'s contents.""" + self.files.setdefault(fname, {})['hash'] = val + + def index_info(self, fname): + """Get the information for index.html for `fname`.""" + return self.files.get(fname, {}).get('index', {}) + + def set_index_info(self, fname, info): + """Set the information for index.html for `fname`.""" + self.files.setdefault(fname, {})['index'] = info + + +# Helpers for templates and generating HTML + +def escape(t): + """HTML-escape the text in `t`. + + This is only suitable for HTML text, not attributes. + + """ + # Convert HTML special chars into HTML entities. + return t.replace("&", "&").replace("<", "<") + + +def pair(ratio): + """Format a pair of numbers so JavaScript can read them in an attribute.""" + return "%s %s" % ratio diff --git a/utils/python-venv/Lib/site-packages/coverage/htmlfiles/coverage_html.js b/utils/python-venv/Lib/site-packages/coverage/htmlfiles/coverage_html.js new file mode 100644 index 0000000..1c4eb98 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/htmlfiles/coverage_html.js @@ -0,0 +1,604 @@ +// Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +// For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +// Coverage.py HTML report browser code. +/*jslint browser: true, sloppy: true, vars: true, plusplus: true, maxerr: 50, indent: 4 */ +/*global coverage: true, document, window, $ */ + +coverage = {}; + +// General helpers +function debounce(callback, wait) { + let timeoutId = null; + return function(...args) { + clearTimeout(timeoutId); + timeoutId = setTimeout(() => { + callback.apply(this, args); + }, wait); + }; +}; + +function checkVisible(element) { + const rect = element.getBoundingClientRect(); + const viewBottom = Math.max(document.documentElement.clientHeight, window.innerHeight); + const viewTop = 30; + return !(rect.bottom < viewTop || rect.top >= viewBottom); +} + +function on_click(sel, fn) { + const elt = document.querySelector(sel); + if (elt) { + elt.addEventListener("click", fn); + } +} + +// Helpers for table sorting +function getCellValue(row, column = 0) { + const cell = row.cells[column] + if (cell.childElementCount == 1) { + const child = cell.firstElementChild + if (child instanceof HTMLTimeElement && child.dateTime) { + return child.dateTime + } else if (child instanceof HTMLDataElement && child.value) { + return child.value + } + } + return cell.innerText || cell.textContent; +} + +function rowComparator(rowA, rowB, column = 0) { + let valueA = getCellValue(rowA, column); + let valueB = getCellValue(rowB, column); + if (!isNaN(valueA) && !isNaN(valueB)) { + return valueA - valueB + } + return valueA.localeCompare(valueB, undefined, {numeric: true}); +} + +function sortColumn(th) { + // Get the current sorting direction of the selected header, + // clear state on other headers and then set the new sorting direction + const currentSortOrder = th.getAttribute("aria-sort"); + [...th.parentElement.cells].forEach(header => header.setAttribute("aria-sort", "none")); + if (currentSortOrder === "none") { + th.setAttribute("aria-sort", th.dataset.defaultSortOrder || "ascending"); + } else { + th.setAttribute("aria-sort", currentSortOrder === "ascending" ? "descending" : "ascending"); + } + + const column = [...th.parentElement.cells].indexOf(th) + + // Sort all rows and afterwards append them in order to move them in the DOM + Array.from(th.closest("table").querySelectorAll("tbody tr")) + .sort((rowA, rowB) => rowComparator(rowA, rowB, column) * (th.getAttribute("aria-sort") === "ascending" ? 1 : -1)) + .forEach(tr => tr.parentElement.appendChild(tr) ); +} + +// Find all the elements with data-shortcut attribute, and use them to assign a shortcut key. +coverage.assign_shortkeys = function () { + document.querySelectorAll("[data-shortcut]").forEach(element => { + document.addEventListener("keypress", event => { + if (event.target.tagName.toLowerCase() === "input") { + return; // ignore keypress from search filter + } + if (event.key === element.dataset.shortcut) { + element.click(); + } + }); + }); +}; + +// Create the events for the filter box. +coverage.wire_up_filter = function () { + // Cache elements. + const table = document.querySelector("table.index"); + const table_body_rows = table.querySelectorAll("tbody tr"); + const no_rows = document.getElementById("no_rows"); + + // Observe filter keyevents. + document.getElementById("filter").addEventListener("input", debounce(event => { + // Keep running total of each metric, first index contains number of shown rows + const totals = new Array(table.rows[0].cells.length).fill(0); + // Accumulate the percentage as fraction + totals[totals.length - 1] = { "numer": 0, "denom": 0 }; + + // Hide / show elements. + table_body_rows.forEach(row => { + if (!row.cells[0].textContent.includes(event.target.value)) { + // hide + row.classList.add("hidden"); + return; + } + + // show + row.classList.remove("hidden"); + totals[0]++; + + for (let column = 1; column < totals.length; column++) { + // Accumulate dynamic totals + cell = row.cells[column] + if (column === totals.length - 1) { + // Last column contains percentage + const [numer, denom] = cell.dataset.ratio.split(" "); + totals[column]["numer"] += parseInt(numer, 10); + totals[column]["denom"] += parseInt(denom, 10); + } else { + totals[column] += parseInt(cell.textContent, 10); + } + } + }); + + // Show placeholder if no rows will be displayed. + if (!totals[0]) { + // Show placeholder, hide table. + no_rows.style.display = "block"; + table.style.display = "none"; + return; + } + + // Hide placeholder, show table. + no_rows.style.display = null; + table.style.display = null; + + const footer = table.tFoot.rows[0]; + // Calculate new dynamic sum values based on visible rows. + for (let column = 1; column < totals.length; column++) { + // Get footer cell element. + const cell = footer.cells[column]; + + // Set value into dynamic footer cell element. + if (column === totals.length - 1) { + // Percentage column uses the numerator and denominator, + // and adapts to the number of decimal places. + const match = /\.([0-9]+)/.exec(cell.textContent); + const places = match ? match[1].length : 0; + const { numer, denom } = totals[column]; + cell.dataset.ratio = `${numer} ${denom}`; + // Check denom to prevent NaN if filtered files contain no statements + cell.textContent = denom + ? `${(numer * 100 / denom).toFixed(places)}%` + : `${(100).toFixed(places)}%`; + } else { + cell.textContent = totals[column]; + } + } + })); + + // Trigger change event on setup, to force filter on page refresh + // (filter value may still be present). + document.getElementById("filter").dispatchEvent(new Event("input")); +}; + +coverage.INDEX_SORT_STORAGE = "COVERAGE_INDEX_SORT_2"; + +// Loaded on index.html +coverage.index_ready = function () { + coverage.assign_shortkeys(); + coverage.wire_up_filter(); + document.querySelectorAll("[data-sortable] th[aria-sort]").forEach( + th => th.addEventListener("click", e => sortColumn(e.target)) + ); + + // Look for a localStorage item containing previous sort settings: + const stored_list = localStorage.getItem(coverage.INDEX_SORT_STORAGE); + + if (stored_list) { + const {column, direction} = JSON.parse(stored_list); + const th = document.querySelector("[data-sortable]").tHead.rows[0].cells[column]; + th.setAttribute("aria-sort", direction === "ascending" ? "descending" : "ascending"); + th.click() + } + + // Watch for page unload events so we can save the final sort settings: + window.addEventListener("unload", function () { + const th = document.querySelector('[data-sortable] th[aria-sort="ascending"], [data-sortable] [aria-sort="descending"]'); + if (!th) { + return; + } + localStorage.setItem(coverage.INDEX_SORT_STORAGE, JSON.stringify({ + column: [...th.parentElement.cells].indexOf(th), + direction: th.getAttribute("aria-sort"), + })); + }); + + on_click(".button_prev_file", coverage.to_prev_file); + on_click(".button_next_file", coverage.to_next_file); + + on_click(".button_show_hide_help", coverage.show_hide_help); +}; + +// -- pyfile stuff -- + +coverage.LINE_FILTERS_STORAGE = "COVERAGE_LINE_FILTERS"; + +coverage.pyfile_ready = function () { + // If we're directed to a particular line number, highlight the line. + var frag = location.hash; + if (frag.length > 2 && frag[1] === 't') { + document.querySelector(frag).closest(".n").classList.add("highlight"); + coverage.set_sel(parseInt(frag.substr(2), 10)); + } else { + coverage.set_sel(0); + } + + on_click(".button_toggle_run", coverage.toggle_lines); + on_click(".button_toggle_mis", coverage.toggle_lines); + on_click(".button_toggle_exc", coverage.toggle_lines); + on_click(".button_toggle_par", coverage.toggle_lines); + + on_click(".button_next_chunk", coverage.to_next_chunk_nicely); + on_click(".button_prev_chunk", coverage.to_prev_chunk_nicely); + on_click(".button_top_of_page", coverage.to_top); + on_click(".button_first_chunk", coverage.to_first_chunk); + + on_click(".button_prev_file", coverage.to_prev_file); + on_click(".button_next_file", coverage.to_next_file); + on_click(".button_to_index", coverage.to_index); + + on_click(".button_show_hide_help", coverage.show_hide_help); + + coverage.filters = undefined; + try { + coverage.filters = localStorage.getItem(coverage.LINE_FILTERS_STORAGE); + } catch(err) {} + + if (coverage.filters) { + coverage.filters = JSON.parse(coverage.filters); + } + else { + coverage.filters = {run: false, exc: true, mis: true, par: true}; + } + + for (cls in coverage.filters) { + coverage.set_line_visibilty(cls, coverage.filters[cls]); + } + + coverage.assign_shortkeys(); + coverage.init_scroll_markers(); + coverage.wire_up_sticky_header(); + + // Rebuild scroll markers when the window height changes. + window.addEventListener("resize", coverage.build_scroll_markers); +}; + +coverage.toggle_lines = function (event) { + const btn = event.target.closest("button"); + const category = btn.value + const show = !btn.classList.contains("show_" + category); + coverage.set_line_visibilty(category, show); + coverage.build_scroll_markers(); + coverage.filters[category] = show; + try { + localStorage.setItem(coverage.LINE_FILTERS_STORAGE, JSON.stringify(coverage.filters)); + } catch(err) {} +}; + +coverage.set_line_visibilty = function (category, should_show) { + const cls = "show_" + category; + const btn = document.querySelector(".button_toggle_" + category); + if (btn) { + if (should_show) { + document.querySelectorAll("#source ." + category).forEach(e => e.classList.add(cls)); + btn.classList.add(cls); + } + else { + document.querySelectorAll("#source ." + category).forEach(e => e.classList.remove(cls)); + btn.classList.remove(cls); + } + } +}; + +// Return the nth line div. +coverage.line_elt = function (n) { + return document.getElementById("t" + n)?.closest("p"); +}; + +// Set the selection. b and e are line numbers. +coverage.set_sel = function (b, e) { + // The first line selected. + coverage.sel_begin = b; + // The next line not selected. + coverage.sel_end = (e === undefined) ? b+1 : e; +}; + +coverage.to_top = function () { + coverage.set_sel(0, 1); + coverage.scroll_window(0); +}; + +coverage.to_first_chunk = function () { + coverage.set_sel(0, 1); + coverage.to_next_chunk(); +}; + +coverage.to_prev_file = function () { + window.location = document.getElementById("prevFileLink").href; +} + +coverage.to_next_file = function () { + window.location = document.getElementById("nextFileLink").href; +} + +coverage.to_index = function () { + location.href = document.getElementById("indexLink").href; +} + +coverage.show_hide_help = function () { + const helpCheck = document.getElementById("help_panel_state") + helpCheck.checked = !helpCheck.checked; +} + +// Return a string indicating what kind of chunk this line belongs to, +// or null if not a chunk. +coverage.chunk_indicator = function (line_elt) { + const classes = line_elt?.className; + if (!classes) { + return null; + } + const match = classes.match(/\bshow_\w+\b/); + if (!match) { + return null; + } + return match[0]; +}; + +coverage.to_next_chunk = function () { + const c = coverage; + + // Find the start of the next colored chunk. + var probe = c.sel_end; + var chunk_indicator, probe_line; + while (true) { + probe_line = c.line_elt(probe); + if (!probe_line) { + return; + } + chunk_indicator = c.chunk_indicator(probe_line); + if (chunk_indicator) { + break; + } + probe++; + } + + // There's a next chunk, `probe` points to it. + var begin = probe; + + // Find the end of this chunk. + var next_indicator = chunk_indicator; + while (next_indicator === chunk_indicator) { + probe++; + probe_line = c.line_elt(probe); + next_indicator = c.chunk_indicator(probe_line); + } + c.set_sel(begin, probe); + c.show_selection(); +}; + +coverage.to_prev_chunk = function () { + const c = coverage; + + // Find the end of the prev colored chunk. + var probe = c.sel_begin-1; + var probe_line = c.line_elt(probe); + if (!probe_line) { + return; + } + var chunk_indicator = c.chunk_indicator(probe_line); + while (probe > 1 && !chunk_indicator) { + probe--; + probe_line = c.line_elt(probe); + if (!probe_line) { + return; + } + chunk_indicator = c.chunk_indicator(probe_line); + } + + // There's a prev chunk, `probe` points to its last line. + var end = probe+1; + + // Find the beginning of this chunk. + var prev_indicator = chunk_indicator; + while (prev_indicator === chunk_indicator) { + probe--; + if (probe <= 0) { + return; + } + probe_line = c.line_elt(probe); + prev_indicator = c.chunk_indicator(probe_line); + } + c.set_sel(probe+1, end); + c.show_selection(); +}; + +// Returns 0, 1, or 2: how many of the two ends of the selection are on +// the screen right now? +coverage.selection_ends_on_screen = function () { + if (coverage.sel_begin === 0) { + return 0; + } + + const begin = coverage.line_elt(coverage.sel_begin); + const end = coverage.line_elt(coverage.sel_end-1); + + return ( + (checkVisible(begin) ? 1 : 0) + + (checkVisible(end) ? 1 : 0) + ); +}; + +coverage.to_next_chunk_nicely = function () { + if (coverage.selection_ends_on_screen() === 0) { + // The selection is entirely off the screen: + // Set the top line on the screen as selection. + + // This will select the top-left of the viewport + // As this is most likely the span with the line number we take the parent + const line = document.elementFromPoint(0, 0).parentElement; + if (line.parentElement !== document.getElementById("source")) { + // The element is not a source line but the header or similar + coverage.select_line_or_chunk(1); + } else { + // We extract the line number from the id + coverage.select_line_or_chunk(parseInt(line.id.substring(1), 10)); + } + } + coverage.to_next_chunk(); +}; + +coverage.to_prev_chunk_nicely = function () { + if (coverage.selection_ends_on_screen() === 0) { + // The selection is entirely off the screen: + // Set the lowest line on the screen as selection. + + // This will select the bottom-left of the viewport + // As this is most likely the span with the line number we take the parent + const line = document.elementFromPoint(document.documentElement.clientHeight-1, 0).parentElement; + if (line.parentElement !== document.getElementById("source")) { + // The element is not a source line but the header or similar + coverage.select_line_or_chunk(coverage.lines_len); + } else { + // We extract the line number from the id + coverage.select_line_or_chunk(parseInt(line.id.substring(1), 10)); + } + } + coverage.to_prev_chunk(); +}; + +// Select line number lineno, or if it is in a colored chunk, select the +// entire chunk +coverage.select_line_or_chunk = function (lineno) { + var c = coverage; + var probe_line = c.line_elt(lineno); + if (!probe_line) { + return; + } + var the_indicator = c.chunk_indicator(probe_line); + if (the_indicator) { + // The line is in a highlighted chunk. + // Search backward for the first line. + var probe = lineno; + var indicator = the_indicator; + while (probe > 0 && indicator === the_indicator) { + probe--; + probe_line = c.line_elt(probe); + if (!probe_line) { + break; + } + indicator = c.chunk_indicator(probe_line); + } + var begin = probe + 1; + + // Search forward for the last line. + probe = lineno; + indicator = the_indicator; + while (indicator === the_indicator) { + probe++; + probe_line = c.line_elt(probe); + indicator = c.chunk_indicator(probe_line); + } + + coverage.set_sel(begin, probe); + } + else { + coverage.set_sel(lineno); + } +}; + +coverage.show_selection = function () { + // Highlight the lines in the chunk + document.querySelectorAll("#source .highlight").forEach(e => e.classList.remove("highlight")); + for (let probe = coverage.sel_begin; probe < coverage.sel_end; probe++) { + coverage.line_elt(probe).querySelector(".n").classList.add("highlight"); + } + + coverage.scroll_to_selection(); +}; + +coverage.scroll_to_selection = function () { + // Scroll the page if the chunk isn't fully visible. + if (coverage.selection_ends_on_screen() < 2) { + const element = coverage.line_elt(coverage.sel_begin); + coverage.scroll_window(element.offsetTop - 60); + } +}; + +coverage.scroll_window = function (to_pos) { + window.scroll({top: to_pos, behavior: "smooth"}); +}; + +coverage.init_scroll_markers = function () { + // Init some variables + coverage.lines_len = document.querySelectorAll('#source > p').length; + + // Build html + coverage.build_scroll_markers(); +}; + +coverage.build_scroll_markers = function () { + const temp_scroll_marker = document.getElementById('scroll_marker') + if (temp_scroll_marker) temp_scroll_marker.remove(); + // Don't build markers if the window has no scroll bar. + if (document.body.scrollHeight <= window.innerHeight) { + return; + } + + const marker_scale = window.innerHeight / document.body.scrollHeight; + const line_height = Math.min(Math.max(3, window.innerHeight / coverage.lines_len), 10); + + let previous_line = -99, last_mark, last_top; + + const scroll_marker = document.createElement("div"); + scroll_marker.id = "scroll_marker"; + document.getElementById('source').querySelectorAll( + 'p.show_run, p.show_mis, p.show_exc, p.show_exc, p.show_par' + ).forEach(element => { + const line_top = Math.floor(element.offsetTop * marker_scale); + const line_number = parseInt(element.querySelector(".n a").id.substr(1)); + + if (line_number === previous_line + 1) { + // If this solid missed block just make previous mark higher. + last_mark.style.height = `${line_top + line_height - last_top}px`; + } else { + // Add colored line in scroll_marker block. + last_mark = document.createElement("div"); + last_mark.id = `m${line_number}`; + last_mark.classList.add("marker"); + last_mark.style.height = `${line_height}px`; + last_mark.style.top = `${line_top}px`; + scroll_marker.append(last_mark); + last_top = line_top; + } + + previous_line = line_number; + }); + + // Append last to prevent layout calculation + document.body.append(scroll_marker); +}; + +coverage.wire_up_sticky_header = function () { + const header = document.querySelector('header'); + const header_bottom = ( + header.querySelector('.content h2').getBoundingClientRect().top - + header.getBoundingClientRect().top + ); + + function updateHeader() { + if (window.scrollY > header_bottom) { + header.classList.add('sticky'); + } else { + header.classList.remove('sticky'); + } + } + + window.addEventListener('scroll', updateHeader); + updateHeader(); +}; + +document.addEventListener("DOMContentLoaded", () => { + if (document.body.classList.contains("indexfile")) { + coverage.index_ready(); + } else { + coverage.pyfile_ready(); + } +}); diff --git a/utils/python-venv/Lib/site-packages/coverage/htmlfiles/favicon_32.png b/utils/python-venv/Lib/site-packages/coverage/htmlfiles/favicon_32.png new file mode 100644 index 0000000000000000000000000000000000000000..8649f0475d8d20793b2ec431fe25a186a414cf10 GIT binary patch literal 1732 zcmV;#20QtQP)K2KOkBOVxIZChq#W-v7@TU%U6P(wycKT1hUJUToW3ke1U1ONa4 z000000000000000bb)GRa9mqwR9|UWHy;^RUrt?IT__Y0JUcxmBP0(51q1>E00030 z|NrOz)aw7%8sJzM<5^g%z7^qE`}_Ot|JUUG(NUkWzR|7K?Zo%@_v-8G-1N%N=D$;; 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+
+

{{ title|escape }}: + {{totals.pc_covered_str}}% +

+ + + +
+ +
+ +

+ coverage.py v{{__version__}}, + created at {{ time_stamp }} +

+
+
+ +
+ + + {# The title="" attr doesn"t work in Safari. #} + + + + + + {% if has_arcs %} + + + {% endif %} + + + + + {% for file in files %} + + + + + + {% if has_arcs %} + + + {% endif %} + + + {% endfor %} + + + + + + + + {% if has_arcs %} + + + {% endif %} + + + +
Modulestatementsmissingexcludedbranchespartialcoverage
{{file.relative_filename}}{{file.nums.n_statements}}{{file.nums.n_missing}}{{file.nums.n_excluded}}{{file.nums.n_branches}}{{file.nums.n_partial_branches}}{{file.nums.pc_covered_str}}%
Total{{totals.n_statements}}{{totals.n_missing}}{{totals.n_excluded}}{{totals.n_branches}}{{totals.n_partial_branches}}{{totals.pc_covered_str}}%
+ +

+ No items found using the specified filter. +

+ + {% if skipped_covered_msg %} +

{{ skipped_covered_msg }}

+ {% endif %} + {% if skipped_empty_msg %} +

{{ skipped_empty_msg }}

+ {% endif %} +
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+
+

+ Coverage for {{relative_filename|escape}}: + {{nums.pc_covered_str}}% +

+ + + +

+ {{nums.n_statements}} statements   + + + + {% if has_arcs %} + + {% endif %} +

+ +

+ « prev     + ^ index     + » next +       + coverage.py v{{__version__}}, + created at {{ time_stamp }} +

+ + +
+
+ +
+ {% for line in lines -%} + {% joined %} +

+ {{line.number}} + {{line.html}}  + {% if line.context_list %} + + {% endif %} + {# Things that should float right in the line. #} + + {% if line.annotate %} + {{line.annotate}} + {{line.annotate_long}} + {% endif %} + {% if line.contexts %} + + {% endif %} + + {# Things that should appear below the line. #} + {% if line.context_list %} + + {% for context in line.context_list %} + {{context}} + {% endfor %} + + {% endif %} +

+ {% endjoined %} + {% endfor %} +
+ + + + + diff --git a/utils/python-venv/Lib/site-packages/coverage/htmlfiles/style.css b/utils/python-venv/Lib/site-packages/coverage/htmlfiles/style.css new file mode 100644 index 0000000..d6768a3 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/htmlfiles/style.css @@ -0,0 +1,311 @@ +@charset "UTF-8"; +/* Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 */ +/* For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt */ +/* Don't edit this .css file. Edit the .scss file instead! */ +html, body, h1, h2, h3, p, table, td, th { margin: 0; padding: 0; border: 0; font-weight: inherit; font-style: inherit; font-size: 100%; font-family: inherit; vertical-align: baseline; } + +body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; font-size: 1em; background: #fff; color: #000; } + +@media (prefers-color-scheme: dark) { body { background: #1e1e1e; } } + +@media (prefers-color-scheme: dark) { body { color: #eee; } } + +html > body { font-size: 16px; } + +a:active, a:focus { outline: 2px dashed #007acc; } + +p { font-size: .875em; line-height: 1.4em; } + +table { border-collapse: collapse; } + +td { vertical-align: top; } + +table tr.hidden { display: none !important; } + +p#no_rows { display: none; font-size: 1.2em; } + +a.nav { text-decoration: none; color: inherit; } + +a.nav:hover { text-decoration: underline; color: inherit; } + +.hidden { display: none; } + +header { background: #f8f8f8; width: 100%; z-index: 2; border-bottom: 1px solid #ccc; } + +@media (prefers-color-scheme: dark) { header { background: black; } } + +@media (prefers-color-scheme: dark) { header { border-color: #333; } } + +header .content { padding: 1rem 3.5rem; } + +header h2 { margin-top: .5em; font-size: 1em; } + +header p.text { margin: .5em 0 -.5em; color: #666; font-style: italic; } + +@media (prefers-color-scheme: dark) { header p.text { color: #aaa; } } + +header.sticky { position: fixed; left: 0; right: 0; height: 2.5em; } + +header.sticky .text { display: none; } + +header.sticky h1, header.sticky h2 { font-size: 1em; margin-top: 0; display: inline-block; } + +header.sticky .content { padding: 0.5rem 3.5rem; } + +header.sticky .content p { font-size: 1em; } + +header.sticky ~ #source { padding-top: 6.5em; } + +main { position: relative; z-index: 1; } + +footer { margin: 1rem 3.5rem; } + +footer .content { padding: 0; color: #666; font-style: italic; } + +@media (prefers-color-scheme: dark) { footer .content { color: #aaa; } } + +#index { margin: 1rem 0 0 3.5rem; } + +h1 { font-size: 1.25em; display: inline-block; } + +#filter_container { float: right; margin: 0 2em 0 0; } + +#filter_container input { width: 10em; padding: 0.2em 0.5em; border: 2px solid #ccc; background: #fff; color: #000; } + +@media (prefers-color-scheme: dark) { #filter_container input { border-color: #444; } } + +@media (prefers-color-scheme: dark) { #filter_container input { background: #1e1e1e; } } + +@media (prefers-color-scheme: dark) { #filter_container input { color: #eee; } } + +#filter_container input:focus { border-color: #007acc; } + +header button { font-family: inherit; font-size: inherit; border: 1px solid; border-radius: .2em; color: inherit; padding: .1em .5em; margin: 1px calc(.1em + 1px); cursor: pointer; border-color: #ccc; } + +@media (prefers-color-scheme: dark) { header button { border-color: #444; } } + +header button:active, header button:focus { outline: 2px dashed #007acc; } + +header button.run { background: #eeffee; } + +@media (prefers-color-scheme: dark) { header button.run { background: #373d29; } } + +header button.run.show_run { background: #dfd; border: 2px solid #00dd00; margin: 0 .1em; } + +@media (prefers-color-scheme: dark) { header button.run.show_run { background: #373d29; } } + +header button.mis { background: #ffeeee; } + +@media (prefers-color-scheme: dark) { header button.mis { background: #4b1818; } } + +header button.mis.show_mis { background: #fdd; border: 2px solid #ff0000; margin: 0 .1em; } + +@media (prefers-color-scheme: dark) { header button.mis.show_mis { background: #4b1818; } } + +header button.exc { background: #f7f7f7; } + +@media (prefers-color-scheme: dark) { header button.exc { background: #333; } } + +header button.exc.show_exc { background: #eee; border: 2px solid #808080; margin: 0 .1em; } + +@media (prefers-color-scheme: dark) { header button.exc.show_exc { background: #333; } } + +header button.par { background: #ffffd5; } + +@media (prefers-color-scheme: dark) { header button.par { background: #650; } } + +header button.par.show_par { background: #ffa; border: 2px solid #bbbb00; margin: 0 .1em; } + +@media (prefers-color-scheme: dark) { header button.par.show_par { background: #650; } } + +#help_panel, #source p .annotate.long { display: none; position: absolute; z-index: 999; background: #ffffcc; border: 1px solid #888; border-radius: .2em; color: #333; padding: .25em .5em; } + +#source p .annotate.long { white-space: normal; float: right; top: 1.75em; right: 1em; height: auto; } + +#help_panel_wrapper { float: right; position: relative; } + +#keyboard_icon { margin: 5px; } + +#help_panel_state { display: none; } + +#help_panel { top: 25px; right: 0; padding: .75em; border: 1px solid #883; color: #333; } + +#help_panel .keyhelp p { margin-top: .75em; } + +#help_panel .legend { font-style: italic; margin-bottom: 1em; } + +.indexfile #help_panel { width: 25em; } + +.pyfile #help_panel { width: 18em; } + +#help_panel_state:checked ~ #help_panel { display: block; } + +kbd { border: 1px solid black; border-color: #888 #333 #333 #888; padding: .1em .35em; font-family: SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-weight: bold; background: #eee; border-radius: 3px; } + +#source { padding: 1em 0 1em 3.5rem; font-family: SFMono-Regular, Menlo, Monaco, Consolas, monospace; } + +#source p { position: relative; white-space: pre; } + +#source p * { box-sizing: border-box; } + +#source p .n { float: left; text-align: right; width: 3.5rem; box-sizing: border-box; margin-left: -3.5rem; padding-right: 1em; color: #999; } + +@media (prefers-color-scheme: dark) { #source p .n { color: #777; } } + +#source p .n.highlight { background: #ffdd00; } + +#source p .n a { margin-top: -4em; padding-top: 4em; text-decoration: none; color: #999; } + +@media (prefers-color-scheme: dark) { #source p .n a { color: #777; } } + +#source p .n a:hover { text-decoration: underline; color: #999; } + +@media (prefers-color-scheme: dark) { #source p .n a:hover { color: #777; } } + +#source p .t { display: inline-block; width: 100%; box-sizing: border-box; margin-left: -.5em; padding-left: 0.3em; border-left: 0.2em solid #fff; } + +@media (prefers-color-scheme: dark) { #source p .t { border-color: #1e1e1e; } } + +#source p .t:hover { background: #f2f2f2; } + +@media (prefers-color-scheme: dark) { #source p .t:hover { background: #282828; } } + +#source p .t:hover ~ .r .annotate.long { display: block; } + +#source p .t .com { color: #008000; font-style: italic; line-height: 1px; } + +@media (prefers-color-scheme: dark) { #source p .t .com { color: #6a9955; } } + +#source p .t .key { font-weight: bold; line-height: 1px; } + +#source p .t .str { color: #0451a5; } + +@media (prefers-color-scheme: dark) { #source p .t .str { color: #9cdcfe; } } + +#source p.mis .t { border-left: 0.2em solid #ff0000; } + +#source p.mis.show_mis .t { background: #fdd; } + +@media (prefers-color-scheme: dark) { #source p.mis.show_mis .t { background: #4b1818; } } + +#source p.mis.show_mis .t:hover { background: #f2d2d2; } + +@media (prefers-color-scheme: dark) { #source p.mis.show_mis .t:hover { background: #532323; } } + +#source p.run .t { border-left: 0.2em solid #00dd00; } + +#source p.run.show_run .t { background: #dfd; } + +@media (prefers-color-scheme: dark) { #source p.run.show_run .t { background: #373d29; } } + +#source p.run.show_run .t:hover { background: #d2f2d2; } + +@media (prefers-color-scheme: dark) { #source p.run.show_run .t:hover { background: #404633; } } + +#source p.exc .t { border-left: 0.2em solid #808080; } + +#source p.exc.show_exc .t { background: #eee; } + +@media (prefers-color-scheme: dark) { #source p.exc.show_exc .t { background: #333; } } + +#source p.exc.show_exc .t:hover { background: #e2e2e2; } + +@media (prefers-color-scheme: dark) { #source p.exc.show_exc .t:hover { background: #3c3c3c; } } + +#source p.par .t { border-left: 0.2em solid #bbbb00; } + +#source p.par.show_par .t { background: #ffa; } + +@media (prefers-color-scheme: dark) { #source p.par.show_par .t { background: #650; } } + +#source p.par.show_par .t:hover { background: #f2f2a2; } + +@media (prefers-color-scheme: dark) { #source p.par.show_par .t:hover { background: #6d5d0c; } } + +#source p .r { position: absolute; top: 0; right: 2.5em; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; } + +#source p .annotate { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; color: #666; padding-right: .5em; } + +@media (prefers-color-scheme: dark) { #source p .annotate { color: #ddd; } } + +#source p .annotate.short:hover ~ .long { display: block; } + +#source p .annotate.long { width: 30em; right: 2.5em; } + +#source p input { display: none; } + +#source p input ~ .r label.ctx { cursor: pointer; border-radius: .25em; } + +#source p input ~ .r label.ctx::before { content: "▶ "; } + +#source p input ~ .r label.ctx:hover { background: #e8f4ff; color: #666; } + +@media (prefers-color-scheme: dark) { #source p input ~ .r label.ctx:hover { background: #0f3a42; } } + +@media (prefers-color-scheme: dark) { #source p input ~ .r label.ctx:hover { color: #aaa; } } + +#source p input:checked ~ .r label.ctx { background: #d0e8ff; color: #666; border-radius: .75em .75em 0 0; padding: 0 .5em; margin: -.25em 0; } + +@media (prefers-color-scheme: dark) { #source p input:checked ~ .r label.ctx { background: #056; } } + +@media (prefers-color-scheme: dark) { #source p input:checked ~ .r label.ctx { color: #aaa; } } + +#source p input:checked ~ .r label.ctx::before { content: "▼ "; } + +#source p input:checked ~ .ctxs { padding: .25em .5em; overflow-y: scroll; max-height: 10.5em; } + +#source p label.ctx { color: #999; display: inline-block; padding: 0 .5em; font-size: .8333em; } + +@media (prefers-color-scheme: dark) { #source p label.ctx { color: #777; } } + +#source p .ctxs { display: block; max-height: 0; overflow-y: hidden; transition: all .2s; padding: 0 .5em; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; white-space: nowrap; background: #d0e8ff; border-radius: .25em; margin-right: 1.75em; } + +@media (prefers-color-scheme: dark) { #source p .ctxs { background: #056; } } + +#source p .ctxs span { display: block; text-align: right; } + +#index { font-family: SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 0.875em; } + +#index table.index { margin-left: -.5em; } + +#index td, #index th { text-align: right; width: 5em; padding: .25em .5em; border-bottom: 1px solid #eee; } + +@media (prefers-color-scheme: dark) { #index td, #index th { border-color: #333; } } + +#index td.name, #index th.name { text-align: left; width: auto; } + +#index th { font-style: italic; color: #333; cursor: pointer; } + +@media (prefers-color-scheme: dark) { #index th { color: #ddd; } } + +#index th:hover { background: #eee; } + +@media (prefers-color-scheme: dark) { #index th:hover { background: #333; } } + +#index th[aria-sort="ascending"], #index th[aria-sort="descending"] { white-space: nowrap; background: #eee; padding-left: .5em; } + +@media (prefers-color-scheme: dark) { #index th[aria-sort="ascending"], #index th[aria-sort="descending"] { background: #333; } } + +#index th[aria-sort="ascending"]::after { font-family: sans-serif; content: " ↑"; } + +#index th[aria-sort="descending"]::after { font-family: sans-serif; content: " ↓"; } + +#index td.name a { text-decoration: none; color: inherit; } + +#index tr.total td, #index tr.total_dynamic td { font-weight: bold; border-top: 1px solid #ccc; border-bottom: none; } + +#index tr.file:hover { background: #eee; } + +@media (prefers-color-scheme: dark) { #index tr.file:hover { background: #333; } } + +#index tr.file:hover td.name { text-decoration: underline; color: inherit; } + +#scroll_marker { position: fixed; z-index: 3; right: 0; top: 0; width: 16px; height: 100%; background: #fff; border-left: 1px solid #eee; will-change: transform; } + +@media (prefers-color-scheme: dark) { #scroll_marker { background: #1e1e1e; } } + +@media (prefers-color-scheme: dark) { #scroll_marker { border-color: #333; } } + +#scroll_marker .marker { background: #ccc; position: absolute; min-height: 3px; width: 100%; } + +@media (prefers-color-scheme: dark) { #scroll_marker .marker { background: #444; } } diff --git a/utils/python-venv/Lib/site-packages/coverage/htmlfiles/style.scss b/utils/python-venv/Lib/site-packages/coverage/htmlfiles/style.scss new file mode 100644 index 0000000..1e9103f --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/htmlfiles/style.scss @@ -0,0 +1,719 @@ +/* Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 */ +/* For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt */ + +// CSS styles for coverage.py HTML reports. + +// When you edit this file, you need to run "make css" to get the CSS file +// generated, and then check in both the .scss and the .css files. + +// When working on the file, this command is useful: +// sass --watch --style=compact --sourcemap=none --no-cache coverage/htmlfiles/style.scss:htmlcov/style.css +// +// OR you can process sass purely in python with `pip install pysass`, then: +// pysassc --style=compact coverage/htmlfiles/style.scss coverage/htmlfiles/style.css + +// Ignore this comment, it's for the CSS output file: +/* Don't edit this .css file. Edit the .scss file instead! */ + +// Dimensions +$left-gutter: 3.5rem; + +// +// Declare colors and variables +// + +$font-normal: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; +$font-code: SFMono-Regular, Menlo, Monaco, Consolas, monospace; + +$off-button-lighten: 50%; +$hover-dark-amt: 95%; + +$focus-color: #007acc; + +$mis-color: #ff0000; +$run-color: #00dd00; +$exc-color: #808080; +$par-color: #bbbb00; + +$light-bg: #fff; +$light-fg: #000; +$light-gray1: #f8f8f8; +$light-gray2: #eee; +$light-gray3: #ccc; +$light-gray4: #999; +$light-gray5: #666; +$light-gray6: #333; +$light-pln-bg: $light-bg; +$light-mis-bg: #fdd; +$light-run-bg: #dfd; +$light-exc-bg: $light-gray2; +$light-par-bg: #ffa; +$light-token-com: #008000; +$light-token-str: #0451a5; +$light-context-bg-color: #d0e8ff; + +$dark-bg: #1e1e1e; +$dark-fg: #eee; +$dark-gray1: #222; +$dark-gray2: #333; +$dark-gray3: #444; +$dark-gray4: #777; +$dark-gray5: #aaa; +$dark-gray6: #ddd; +$dark-pln-bg: $dark-bg; +$dark-mis-bg: #4b1818; +$dark-run-bg: #373d29; +$dark-exc-bg: $dark-gray2; +$dark-par-bg: #650; +$dark-token-com: #6a9955; +$dark-token-str: #9cdcfe; +$dark-context-bg-color: #056; + +// +// Mixins and utilities +// + +@mixin background-dark($color) { + @media (prefers-color-scheme: dark) { + background: $color; + } +} +@mixin color-dark($color) { + @media (prefers-color-scheme: dark) { + color: $color; + } +} +@mixin border-color-dark($color) { + @media (prefers-color-scheme: dark) { + border-color: $color; + } +} + +// Add visual outline to navigable elements on focus improve accessibility. +@mixin focus-border { + &:active, &:focus { + outline: 2px dashed $focus-color; + } +} + +// Page-wide styles +html, body, h1, h2, h3, p, table, td, th { + margin: 0; + padding: 0; + border: 0; + font-weight: inherit; + font-style: inherit; + font-size: 100%; + font-family: inherit; + vertical-align: baseline; +} + +// Set baseline grid to 16 pt. +body { + font-family: $font-normal; + font-size: 1em; + background: $light-bg; + color: $light-fg; + @include background-dark($dark-bg); + @include color-dark($dark-fg); +} + +html>body { + font-size: 16px; +} + +a { + @include focus-border; +} + +p { + font-size: .875em; + line-height: 1.4em; +} + +table { + border-collapse: collapse; +} +td { + vertical-align: top; +} +table tr.hidden { + display: none !important; +} + +p#no_rows { + display: none; + font-size: 1.2em; +} + +a.nav { + text-decoration: none; + color: inherit; + + &:hover { + text-decoration: underline; + color: inherit; + } +} + +.hidden { + display: none; +} + +// Page structure +header { + background: $light-gray1; + @include background-dark(black); + width: 100%; + z-index: 2; + border-bottom: 1px solid $light-gray3; + @include border-color-dark($dark-gray2); + + .content { + padding: 1rem $left-gutter; + } + + h2 { + margin-top: .5em; + font-size: 1em; + } + + p.text { + margin: .5em 0 -.5em; + color: $light-gray5; + @include color-dark($dark-gray5); + font-style: italic; + } + + &.sticky { + position: fixed; + left: 0; + right: 0; + height: 2.5em; + + .text { + display: none; + } + + h1, h2 { + font-size: 1em; + margin-top: 0; + display: inline-block; + } + + .content { + padding: .5rem $left-gutter; + p { + font-size: 1em; + } + } + + & ~ #source { + padding-top: 6.5em; + } + } +} + +main { + position: relative; + z-index: 1; +} + +footer { + margin: 1rem $left-gutter; + + .content { + padding: 0; + color: $light-gray5; + @include color-dark($dark-gray5); + font-style: italic; + } +} + +#index { + margin: 1rem 0 0 $left-gutter; +} + +// Header styles + +h1 { + font-size: 1.25em; + display: inline-block; +} + +#filter_container { + float: right; + margin: 0 2em 0 0; + + input { + width: 10em; + padding: 0.2em 0.5em; + border: 2px solid $light-gray3; + background: $light-bg; + color: $light-fg; + @include border-color-dark($dark-gray3); + @include background-dark($dark-bg); + @include color-dark($dark-fg); + &:focus { + border-color: $focus-color; + } + } +} + +header button { + font-family: inherit; + font-size: inherit; + border: 1px solid; + border-radius: .2em; + color: inherit; + padding: .1em .5em; + margin: 1px calc(.1em + 1px); + cursor: pointer; + border-color: $light-gray3; + @include border-color-dark($dark-gray3); + @include focus-border; + + &.run { + background: mix($light-run-bg, $light-bg, $off-button-lighten); + @include background-dark($dark-run-bg); + &.show_run { + background: $light-run-bg; + @include background-dark($dark-run-bg); + border: 2px solid $run-color; + margin: 0 .1em; + } + } + &.mis { + background: mix($light-mis-bg, $light-bg, $off-button-lighten); + @include background-dark($dark-mis-bg); + &.show_mis { + background: $light-mis-bg; + @include background-dark($dark-mis-bg); + border: 2px solid $mis-color; + margin: 0 .1em; + } + } + &.exc { + background: mix($light-exc-bg, $light-bg, $off-button-lighten); + @include background-dark($dark-exc-bg); + &.show_exc { + background: $light-exc-bg; + @include background-dark($dark-exc-bg); + border: 2px solid $exc-color; + margin: 0 .1em; + } + } + &.par { + background: mix($light-par-bg, $light-bg, $off-button-lighten); + @include background-dark($dark-par-bg); + &.show_par { + background: $light-par-bg; + @include background-dark($dark-par-bg); + border: 2px solid $par-color; + margin: 0 .1em; + } + } +} + +// Yellow post-it things. +%popup { + display: none; + position: absolute; + z-index: 999; + background: #ffffcc; + border: 1px solid #888; + border-radius: .2em; + color: #333; + padding: .25em .5em; +} + +// Yellow post-it's in the text listings. +%in-text-popup { + @extend %popup; + white-space: normal; + float: right; + top: 1.75em; + right: 1em; + height: auto; +} + +// Help panel +#help_panel_wrapper { + float: right; + position: relative; +} + +#keyboard_icon { + margin: 5px; +} + +#help_panel_state { + display: none; +} + +#help_panel { + @extend %popup; + top: 25px; + right: 0; + padding: .75em; + border: 1px solid #883; + + color: #333; + + .keyhelp p { + margin-top: .75em; + } + + .legend { + font-style: italic; + margin-bottom: 1em; + } + + .indexfile & { + width: 25em; + } + + .pyfile & { + width: 18em; + } + + #help_panel_state:checked ~ & { + display: block; + } +} + +kbd { + border: 1px solid black; + border-color: #888 #333 #333 #888; + padding: .1em .35em; + font-family: $font-code; + font-weight: bold; + background: #eee; + border-radius: 3px; +} + +// Source file styles + +// The slim bar at the left edge of the source lines, colored by coverage. +$border-indicator-width: .2em; + +#source { + padding: 1em 0 1em $left-gutter; + font-family: $font-code; + + p { + // position relative makes position:absolute pop-ups appear in the right place. + position: relative; + white-space: pre; + + * { + box-sizing: border-box; + } + + .n { + float: left; + text-align: right; + width: $left-gutter; + box-sizing: border-box; + margin-left: -$left-gutter; + padding-right: 1em; + color: $light-gray4; + @include color-dark($dark-gray4); + + &.highlight { + background: #ffdd00; + } + + a { + // These two lines make anchors to the line scroll the line to be + // visible beneath the fixed-position header. + margin-top: -4em; + padding-top: 4em; + + text-decoration: none; + color: $light-gray4; + @include color-dark($dark-gray4); + &:hover { + text-decoration: underline; + color: $light-gray4; + @include color-dark($dark-gray4); + } + } + } + + .t { + display: inline-block; + width: 100%; + box-sizing: border-box; + margin-left: -.5em; + padding-left: .5em - $border-indicator-width; + border-left: $border-indicator-width solid $light-bg; + @include border-color-dark($dark-bg); + + &:hover { + background: mix($light-pln-bg, $light-fg, $hover-dark-amt); + @include background-dark(mix($dark-pln-bg, $dark-fg, $hover-dark-amt)); + + & ~ .r .annotate.long { + display: block; + } + } + + // Syntax coloring + .com { + color: $light-token-com; + @include color-dark($dark-token-com); + font-style: italic; + line-height: 1px; + } + .key { + font-weight: bold; + line-height: 1px; + } + .str { + color: $light-token-str; + @include color-dark($dark-token-str); + } + } + + &.mis { + .t { + border-left: $border-indicator-width solid $mis-color; + } + + &.show_mis .t { + background: $light-mis-bg; + @include background-dark($dark-mis-bg); + + &:hover { + background: mix($light-mis-bg, $light-fg, $hover-dark-amt); + @include background-dark(mix($dark-mis-bg, $dark-fg, $hover-dark-amt)); + } + } + } + + &.run { + .t { + border-left: $border-indicator-width solid $run-color; + } + + &.show_run .t { + background: $light-run-bg; + @include background-dark($dark-run-bg); + + &:hover { + background: mix($light-run-bg, $light-fg, $hover-dark-amt); + @include background-dark(mix($dark-run-bg, $dark-fg, $hover-dark-amt)); + } + } + } + + &.exc { + .t { + border-left: $border-indicator-width solid $exc-color; + } + + &.show_exc .t { + background: $light-exc-bg; + @include background-dark($dark-exc-bg); + + &:hover { + background: mix($light-exc-bg, $light-fg, $hover-dark-amt); + @include background-dark(mix($dark-exc-bg, $dark-fg, $hover-dark-amt)); + } + } + } + + &.par { + .t { + border-left: $border-indicator-width solid $par-color; + } + + &.show_par .t { + background: $light-par-bg; + @include background-dark($dark-par-bg); + + &:hover { + background: mix($light-par-bg, $light-fg, $hover-dark-amt); + @include background-dark(mix($dark-par-bg, $dark-fg, $hover-dark-amt)); + } + } + + } + + .r { + position: absolute; + top: 0; + right: 2.5em; + font-family: $font-normal; + } + + .annotate { + font-family: $font-normal; + color: $light-gray5; + @include color-dark($dark-gray6); + padding-right: .5em; + + &.short:hover ~ .long { + display: block; + } + + &.long { + @extend %in-text-popup; + width: 30em; + right: 2.5em; + } + } + + input { + display: none; + + & ~ .r label.ctx { + cursor: pointer; + border-radius: .25em; + &::before { + content: "▶ "; + } + &:hover { + background: mix($light-context-bg-color, $light-bg, $off-button-lighten); + @include background-dark(mix($dark-context-bg-color, $dark-bg, $off-button-lighten)); + color: $light-gray5; + @include color-dark($dark-gray5); + } + } + + &:checked ~ .r label.ctx { + background: $light-context-bg-color; + @include background-dark($dark-context-bg-color); + color: $light-gray5; + @include color-dark($dark-gray5); + border-radius: .75em .75em 0 0; + padding: 0 .5em; + margin: -.25em 0; + &::before { + content: "▼ "; + } + } + + &:checked ~ .ctxs { + padding: .25em .5em; + overflow-y: scroll; + max-height: 10.5em; + } + } + + label.ctx { + color: $light-gray4; + @include color-dark($dark-gray4); + display: inline-block; + padding: 0 .5em; + font-size: .8333em; // 10/12 + } + + .ctxs { + display: block; + max-height: 0; + overflow-y: hidden; + transition: all .2s; + padding: 0 .5em; + font-family: $font-normal; + white-space: nowrap; + background: $light-context-bg-color; + @include background-dark($dark-context-bg-color); + border-radius: .25em; + margin-right: 1.75em; + span { + display: block; + text-align: right; + } + } + } +} + + +// index styles +#index { + font-family: $font-code; + font-size: 0.875em; + + table.index { + margin-left: -.5em; + } + td, th { + text-align: right; + width: 5em; + padding: .25em .5em; + border-bottom: 1px solid $light-gray2; + @include border-color-dark($dark-gray2); + &.name { + text-align: left; + width: auto; + } + } + th { + font-style: italic; + color: $light-gray6; + @include color-dark($dark-gray6); + cursor: pointer; + &:hover { + background: $light-gray2; + @include background-dark($dark-gray2); + } + &[aria-sort="ascending"], &[aria-sort="descending"] { + white-space: nowrap; + background: $light-gray2; + @include background-dark($dark-gray2); + padding-left: .5em; + } + &[aria-sort="ascending"]::after { + font-family: sans-serif; + content: " ↑"; + } + &[aria-sort="descending"]::after { + font-family: sans-serif; + content: " ↓"; + } + } + td.name a { + text-decoration: none; + color: inherit; + } + + tr.total td, + tr.total_dynamic td { + font-weight: bold; + border-top: 1px solid #ccc; + border-bottom: none; + } + tr.file:hover { + background: $light-gray2; + @include background-dark($dark-gray2); + td.name { + text-decoration: underline; + color: inherit; + } + } +} + +// scroll marker styles +#scroll_marker { + position: fixed; + z-index: 3; + right: 0; + top: 0; + width: 16px; + height: 100%; + background: $light-bg; + border-left: 1px solid $light-gray2; + @include background-dark($dark-bg); + @include border-color-dark($dark-gray2); + will-change: transform; // for faster scrolling of fixed element in Chrome + + .marker { + background: $light-gray3; + @include background-dark($dark-gray3); + position: absolute; + min-height: 3px; + width: 100%; + } +} diff --git a/utils/python-venv/Lib/site-packages/coverage/inorout.py b/utils/python-venv/Lib/site-packages/coverage/inorout.py new file mode 100644 index 0000000..ec89d1b --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/inorout.py @@ -0,0 +1,604 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Determining whether files are being measured/reported or not.""" + +import importlib.util +import inspect +import itertools +import os +import platform +import re +import sys +import sysconfig +import traceback + +from coverage import env +from coverage.disposition import FileDisposition, disposition_init +from coverage.exceptions import CoverageException, PluginError +from coverage.files import TreeMatcher, FnmatchMatcher, ModuleMatcher +from coverage.files import prep_patterns, find_python_files, canonical_filename +from coverage.misc import sys_modules_saved +from coverage.python import source_for_file, source_for_morf + + +# Pypy has some unusual stuff in the "stdlib". Consider those locations +# when deciding where the stdlib is. These modules are not used for anything, +# they are modules importable from the pypy lib directories, so that we can +# find those directories. +_structseq = _pypy_irc_topic = None +if env.PYPY: + try: + import _structseq + except ImportError: + pass + + try: + import _pypy_irc_topic + except ImportError: + pass + + +def canonical_path(morf, directory=False): + """Return the canonical path of the module or file `morf`. + + If the module is a package, then return its directory. If it is a + module, then return its file, unless `directory` is True, in which + case return its enclosing directory. + + """ + morf_path = canonical_filename(source_for_morf(morf)) + if morf_path.endswith("__init__.py") or directory: + morf_path = os.path.split(morf_path)[0] + return morf_path + + +def name_for_module(filename, frame): + """Get the name of the module for a filename and frame. + + For configurability's sake, we allow __main__ modules to be matched by + their importable name. + + If loaded via runpy (aka -m), we can usually recover the "original" + full dotted module name, otherwise, we resort to interpreting the + file name to get the module's name. In the case that the module name + can't be determined, None is returned. + + """ + module_globals = frame.f_globals if frame is not None else {} + if module_globals is None: # pragma: only ironpython + # IronPython doesn't provide globals: https://github.com/IronLanguages/main/issues/1296 + module_globals = {} + + dunder_name = module_globals.get('__name__', None) + + if isinstance(dunder_name, str) and dunder_name != '__main__': + # This is the usual case: an imported module. + return dunder_name + + loader = module_globals.get('__loader__', None) + for attrname in ('fullname', 'name'): # attribute renamed in py3.2 + if hasattr(loader, attrname): + fullname = getattr(loader, attrname) + else: + continue + + if isinstance(fullname, str) and fullname != '__main__': + # Module loaded via: runpy -m + return fullname + + # Script as first argument to Python command line. + inspectedname = inspect.getmodulename(filename) + if inspectedname is not None: + return inspectedname + else: + return dunder_name + + +def module_is_namespace(mod): + """Is the module object `mod` a PEP420 namespace module?""" + return hasattr(mod, '__path__') and getattr(mod, '__file__', None) is None + + +def module_has_file(mod): + """Does the module object `mod` have an existing __file__ ?""" + mod__file__ = getattr(mod, '__file__', None) + if mod__file__ is None: + return False + return os.path.exists(mod__file__) + + +def file_and_path_for_module(modulename): + """Find the file and search path for `modulename`. + + Returns: + filename: The filename of the module, or None. + path: A list (possibly empty) of directories to find submodules in. + + """ + filename = None + path = [] + try: + spec = importlib.util.find_spec(modulename) + except Exception: + pass + else: + if spec is not None: + filename = spec.origin + path = list(spec.submodule_search_locations or ()) + return filename, path + + +def add_stdlib_paths(paths): + """Add paths where the stdlib can be found to the set `paths`.""" + # Look at where some standard modules are located. That's the + # indication for "installed with the interpreter". In some + # environments (virtualenv, for example), these modules may be + # spread across a few locations. Look at all the candidate modules + # we've imported, and take all the different ones. + modules_we_happen_to_have = [ + inspect, itertools, os, platform, re, sysconfig, traceback, + _pypy_irc_topic, _structseq, + ] + for m in modules_we_happen_to_have: + if m is not None and hasattr(m, "__file__"): + paths.add(canonical_path(m, directory=True)) + + if _structseq and not hasattr(_structseq, '__file__'): + # PyPy 2.4 has no __file__ in the builtin modules, but the code + # objects still have the file names. So dig into one to find + # the path to exclude. The "filename" might be synthetic, + # don't be fooled by those. + structseq_file = _structseq.structseq_new.__code__.co_filename + if not structseq_file.startswith("<"): + paths.add(canonical_path(structseq_file)) + + +def add_third_party_paths(paths): + """Add locations for third-party packages to the set `paths`.""" + # Get the paths that sysconfig knows about. + scheme_names = set(sysconfig.get_scheme_names()) + + for scheme in scheme_names: + # https://foss.heptapod.net/pypy/pypy/-/issues/3433 + better_scheme = "pypy_posix" if scheme == "pypy" else scheme + if os.name in better_scheme.split("_"): + config_paths = sysconfig.get_paths(scheme) + for path_name in ["platlib", "purelib", "scripts"]: + paths.add(config_paths[path_name]) + + +def add_coverage_paths(paths): + """Add paths where coverage.py code can be found to the set `paths`.""" + cover_path = canonical_path(__file__, directory=True) + paths.add(cover_path) + if env.TESTING: + # Don't include our own test code. + paths.add(os.path.join(cover_path, "tests")) + + # When testing, we use PyContracts, which should be considered + # part of coverage.py, and it uses six. Exclude those directories + # just as we exclude ourselves. + if env.USE_CONTRACTS: + import contracts + import six + for mod in [contracts, six]: + paths.add(canonical_path(mod)) + + +class InOrOut: + """Machinery for determining what files to measure.""" + + def __init__(self, warn, debug): + self.warn = warn + self.debug = debug + + # The matchers for should_trace. + self.source_match = None + self.source_pkgs_match = None + self.pylib_paths = self.cover_paths = self.third_paths = None + self.pylib_match = self.cover_match = self.third_match = None + self.include_match = self.omit_match = None + self.plugins = [] + self.disp_class = FileDisposition + + # The source argument can be directories or package names. + self.source = [] + self.source_pkgs = [] + self.source_pkgs_unmatched = [] + self.omit = self.include = None + + # Is the source inside a third-party area? + self.source_in_third = False + + def configure(self, config): + """Apply the configuration to get ready for decision-time.""" + self.source_pkgs.extend(config.source_pkgs) + for src in config.source or []: + if os.path.isdir(src): + self.source.append(canonical_filename(src)) + else: + self.source_pkgs.append(src) + self.source_pkgs_unmatched = self.source_pkgs[:] + + self.omit = prep_patterns(config.run_omit) + self.include = prep_patterns(config.run_include) + + # The directories for files considered "installed with the interpreter". + self.pylib_paths = set() + if not config.cover_pylib: + add_stdlib_paths(self.pylib_paths) + + # To avoid tracing the coverage.py code itself, we skip anything + # located where we are. + self.cover_paths = set() + add_coverage_paths(self.cover_paths) + + # Find where third-party packages are installed. + self.third_paths = set() + add_third_party_paths(self.third_paths) + + def debug(msg): + if self.debug: + self.debug.write(msg) + + # Generally useful information + debug("sys.path:" + "".join(f"\n {p}" for p in sys.path)) + + # Create the matchers we need for should_trace + if self.source or self.source_pkgs: + against = [] + if self.source: + self.source_match = TreeMatcher(self.source, "source") + against.append(f"trees {self.source_match!r}") + if self.source_pkgs: + self.source_pkgs_match = ModuleMatcher(self.source_pkgs, "source_pkgs") + against.append(f"modules {self.source_pkgs_match!r}") + debug("Source matching against " + " and ".join(against)) + else: + if self.pylib_paths: + self.pylib_match = TreeMatcher(self.pylib_paths, "pylib") + debug(f"Python stdlib matching: {self.pylib_match!r}") + if self.include: + self.include_match = FnmatchMatcher(self.include, "include") + debug(f"Include matching: {self.include_match!r}") + if self.omit: + self.omit_match = FnmatchMatcher(self.omit, "omit") + debug(f"Omit matching: {self.omit_match!r}") + + self.cover_match = TreeMatcher(self.cover_paths, "coverage") + debug(f"Coverage code matching: {self.cover_match!r}") + + self.third_match = TreeMatcher(self.third_paths, "third") + debug(f"Third-party lib matching: {self.third_match!r}") + + # Check if the source we want to measure has been installed as a + # third-party package. + with sys_modules_saved(): + for pkg in self.source_pkgs: + try: + modfile, path = file_and_path_for_module(pkg) + debug(f"Imported source package {pkg!r} as {modfile!r}") + except CoverageException as exc: + debug(f"Couldn't import source package {pkg!r}: {exc}") + continue + if modfile: + if self.third_match.match(modfile): + debug( + f"Source is in third-party because of source_pkg {pkg!r} at {modfile!r}" + ) + self.source_in_third = True + else: + for pathdir in path: + if self.third_match.match(pathdir): + debug( + f"Source is in third-party because of {pkg!r} path directory " + + f"at {pathdir!r}" + ) + self.source_in_third = True + + for src in self.source: + if self.third_match.match(src): + debug(f"Source is in third-party because of source directory {src!r}") + self.source_in_third = True + + def should_trace(self, filename, frame=None): + """Decide whether to trace execution in `filename`, with a reason. + + This function is called from the trace function. As each new file name + is encountered, this function determines whether it is traced or not. + + Returns a FileDisposition object. + + """ + original_filename = filename + disp = disposition_init(self.disp_class, filename) + + def nope(disp, reason): + """Simple helper to make it easy to return NO.""" + disp.trace = False + disp.reason = reason + return disp + + if original_filename.startswith('<'): + return nope(disp, "not a real original file name") + + if frame is not None: + # Compiled Python files have two file names: frame.f_code.co_filename is + # the file name at the time the .pyc was compiled. The second name is + # __file__, which is where the .pyc was actually loaded from. Since + # .pyc files can be moved after compilation (for example, by being + # installed), we look for __file__ in the frame and prefer it to the + # co_filename value. + dunder_file = frame.f_globals and frame.f_globals.get('__file__') + if dunder_file: + filename = source_for_file(dunder_file) + if original_filename and not original_filename.startswith('<'): + orig = os.path.basename(original_filename) + if orig != os.path.basename(filename): + # Files shouldn't be renamed when moved. This happens when + # exec'ing code. If it seems like something is wrong with + # the frame's file name, then just use the original. + filename = original_filename + + if not filename: + # Empty string is pretty useless. + return nope(disp, "empty string isn't a file name") + + if filename.startswith('memory:'): + return nope(disp, "memory isn't traceable") + + if filename.startswith('<'): + # Lots of non-file execution is represented with artificial + # file names like "", "", or + # "". Don't ever trace these executions, since we + # can't do anything with the data later anyway. + return nope(disp, "not a real file name") + + # Jython reports the .class file to the tracer, use the source file. + if filename.endswith("$py.class"): + filename = filename[:-9] + ".py" + + canonical = canonical_filename(filename) + disp.canonical_filename = canonical + + # Try the plugins, see if they have an opinion about the file. + plugin = None + for plugin in self.plugins.file_tracers: + if not plugin._coverage_enabled: + continue + + try: + file_tracer = plugin.file_tracer(canonical) + if file_tracer is not None: + file_tracer._coverage_plugin = plugin + disp.trace = True + disp.file_tracer = file_tracer + if file_tracer.has_dynamic_source_filename(): + disp.has_dynamic_filename = True + else: + disp.source_filename = canonical_filename( + file_tracer.source_filename() + ) + break + except Exception: + plugin_name = plugin._coverage_plugin_name + tb = traceback.format_exc() + self.warn(f"Disabling plug-in {plugin_name!r} due to an exception:\n{tb}") + plugin._coverage_enabled = False + continue + else: + # No plugin wanted it: it's Python. + disp.trace = True + disp.source_filename = canonical + + if not disp.has_dynamic_filename: + if not disp.source_filename: + raise PluginError( + f"Plugin {plugin!r} didn't set source_filename for '{disp.original_filename}'" + ) + reason = self.check_include_omit_etc(disp.source_filename, frame) + if reason: + nope(disp, reason) + + return disp + + def check_include_omit_etc(self, filename, frame): + """Check a file name against the include, omit, etc, rules. + + Returns a string or None. String means, don't trace, and is the reason + why. None means no reason found to not trace. + + """ + modulename = name_for_module(filename, frame) + + # If the user specified source or include, then that's authoritative + # about the outer bound of what to measure and we don't have to apply + # any canned exclusions. If they didn't, then we have to exclude the + # stdlib and coverage.py directories. + if self.source_match or self.source_pkgs_match: + extra = "" + ok = False + if self.source_pkgs_match: + if self.source_pkgs_match.match(modulename): + ok = True + if modulename in self.source_pkgs_unmatched: + self.source_pkgs_unmatched.remove(modulename) + else: + extra = f"module {modulename!r} " + if not ok and self.source_match: + if self.source_match.match(filename): + ok = True + if not ok: + return extra + "falls outside the --source spec" + if not self.source_in_third: + if self.third_match.match(filename): + return "inside --source, but is third-party" + elif self.include_match: + if not self.include_match.match(filename): + return "falls outside the --include trees" + else: + # We exclude the coverage.py code itself, since a little of it + # will be measured otherwise. + if self.cover_match.match(filename): + return "is part of coverage.py" + + # If we aren't supposed to trace installed code, then check if this + # is near the Python standard library and skip it if so. + if self.pylib_match and self.pylib_match.match(filename): + return "is in the stdlib" + + # Exclude anything in the third-party installation areas. + if self.third_match.match(filename): + return "is a third-party module" + + # Check the file against the omit pattern. + if self.omit_match and self.omit_match.match(filename): + return "is inside an --omit pattern" + + # No point tracing a file we can't later write to SQLite. + try: + filename.encode("utf-8") + except UnicodeEncodeError: + return "non-encodable filename" + + # No reason found to skip this file. + return None + + def warn_conflicting_settings(self): + """Warn if there are settings that conflict.""" + if self.include: + if self.source or self.source_pkgs: + self.warn("--include is ignored because --source is set", slug="include-ignored") + + def warn_already_imported_files(self): + """Warn if files have already been imported that we will be measuring.""" + if self.include or self.source or self.source_pkgs: + warned = set() + for mod in list(sys.modules.values()): + filename = getattr(mod, "__file__", None) + if filename is None: + continue + if filename in warned: + continue + + if len(getattr(mod, "__path__", ())) > 1: + # A namespace package, which confuses this code, so ignore it. + continue + + disp = self.should_trace(filename) + if disp.has_dynamic_filename: + # A plugin with dynamic filenames: the Python file + # shouldn't cause a warning, since it won't be the subject + # of tracing anyway. + continue + if disp.trace: + msg = f"Already imported a file that will be measured: {filename}" + self.warn(msg, slug="already-imported") + warned.add(filename) + elif self.debug and self.debug.should('trace'): + self.debug.write( + "Didn't trace already imported file {!r}: {}".format( + disp.original_filename, disp.reason + ) + ) + + def warn_unimported_source(self): + """Warn about source packages that were of interest, but never traced.""" + for pkg in self.source_pkgs_unmatched: + self._warn_about_unmeasured_code(pkg) + + def _warn_about_unmeasured_code(self, pkg): + """Warn about a package or module that we never traced. + + `pkg` is a string, the name of the package or module. + + """ + mod = sys.modules.get(pkg) + if mod is None: + self.warn(f"Module {pkg} was never imported.", slug="module-not-imported") + return + + if module_is_namespace(mod): + # A namespace package. It's OK for this not to have been traced, + # since there is no code directly in it. + return + + if not module_has_file(mod): + self.warn(f"Module {pkg} has no Python source.", slug="module-not-python") + return + + # The module was in sys.modules, and seems like a module with code, but + # we never measured it. I guess that means it was imported before + # coverage even started. + msg = f"Module {pkg} was previously imported, but not measured" + self.warn(msg, slug="module-not-measured") + + def find_possibly_unexecuted_files(self): + """Find files in the areas of interest that might be untraced. + + Yields pairs: file path, and responsible plug-in name. + """ + for pkg in self.source_pkgs: + if (not pkg in sys.modules or + not module_has_file(sys.modules[pkg])): + continue + pkg_file = source_for_file(sys.modules[pkg].__file__) + yield from self._find_executable_files(canonical_path(pkg_file)) + + for src in self.source: + yield from self._find_executable_files(src) + + def _find_plugin_files(self, src_dir): + """Get executable files from the plugins.""" + for plugin in self.plugins.file_tracers: + for x_file in plugin.find_executable_files(src_dir): + yield x_file, plugin._coverage_plugin_name + + def _find_executable_files(self, src_dir): + """Find executable files in `src_dir`. + + Search for files in `src_dir` that can be executed because they + are probably importable. Don't include ones that have been omitted + by the configuration. + + Yield the file path, and the plugin name that handles the file. + + """ + py_files = ((py_file, None) for py_file in find_python_files(src_dir)) + plugin_files = self._find_plugin_files(src_dir) + + for file_path, plugin_name in itertools.chain(py_files, plugin_files): + file_path = canonical_filename(file_path) + if self.omit_match and self.omit_match.match(file_path): + # Turns out this file was omitted, so don't pull it back + # in as unexecuted. + continue + yield file_path, plugin_name + + def sys_info(self): + """Our information for Coverage.sys_info. + + Returns a list of (key, value) pairs. + """ + info = [ + ("coverage_paths", self.cover_paths), + ("stdlib_paths", self.pylib_paths), + ("third_party_paths", self.third_paths), + ] + + matcher_names = [ + 'source_match', 'source_pkgs_match', + 'include_match', 'omit_match', + 'cover_match', 'pylib_match', 'third_match', + ] + + for matcher_name in matcher_names: + matcher = getattr(self, matcher_name) + if matcher: + matcher_info = matcher.info() + else: + matcher_info = '-none-' + info.append((matcher_name, matcher_info)) + + return info diff --git a/utils/python-venv/Lib/site-packages/coverage/jsonreport.py b/utils/python-venv/Lib/site-packages/coverage/jsonreport.py new file mode 100644 index 0000000..3afae2c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/jsonreport.py @@ -0,0 +1,118 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Json reporting for coverage.py""" + +import datetime +import json +import sys + +from coverage import __version__ +from coverage.report import get_analysis_to_report +from coverage.results import Numbers + + +class JsonReporter: + """A reporter for writing JSON coverage results.""" + + report_type = "JSON report" + + def __init__(self, coverage): + self.coverage = coverage + self.config = self.coverage.config + self.total = Numbers(self.config.precision) + self.report_data = {} + + def report(self, morfs, outfile=None): + """Generate a json report for `morfs`. + + `morfs` is a list of modules or file names. + + `outfile` is a file object to write the json to. + + """ + outfile = outfile or sys.stdout + coverage_data = self.coverage.get_data() + coverage_data.set_query_contexts(self.config.report_contexts) + self.report_data["meta"] = { + "version": __version__, + "timestamp": datetime.datetime.now().isoformat(), + "branch_coverage": coverage_data.has_arcs(), + "show_contexts": self.config.json_show_contexts, + } + + measured_files = {} + for file_reporter, analysis in get_analysis_to_report(self.coverage, morfs): + measured_files[file_reporter.relative_filename()] = self.report_one_file( + coverage_data, + analysis + ) + + self.report_data["files"] = measured_files + + self.report_data["totals"] = { + 'covered_lines': self.total.n_executed, + 'num_statements': self.total.n_statements, + 'percent_covered': self.total.pc_covered, + 'percent_covered_display': self.total.pc_covered_str, + 'missing_lines': self.total.n_missing, + 'excluded_lines': self.total.n_excluded, + } + + if coverage_data.has_arcs(): + self.report_data["totals"].update({ + 'num_branches': self.total.n_branches, + 'num_partial_branches': self.total.n_partial_branches, + 'covered_branches': self.total.n_executed_branches, + 'missing_branches': self.total.n_missing_branches, + }) + + json.dump( + self.report_data, + outfile, + indent=(4 if self.config.json_pretty_print else None), + ) + + return self.total.n_statements and self.total.pc_covered + + def report_one_file(self, coverage_data, analysis): + """Extract the relevant report data for a single file.""" + nums = analysis.numbers + self.total += nums + summary = { + 'covered_lines': nums.n_executed, + 'num_statements': nums.n_statements, + 'percent_covered': nums.pc_covered, + 'percent_covered_display': nums.pc_covered_str, + 'missing_lines': nums.n_missing, + 'excluded_lines': nums.n_excluded, + } + reported_file = { + 'executed_lines': sorted(analysis.executed), + 'summary': summary, + 'missing_lines': sorted(analysis.missing), + 'excluded_lines': sorted(analysis.excluded), + } + if self.config.json_show_contexts: + reported_file['contexts'] = analysis.data.contexts_by_lineno(analysis.filename) + if coverage_data.has_arcs(): + reported_file['summary'].update({ + 'num_branches': nums.n_branches, + 'num_partial_branches': nums.n_partial_branches, + 'covered_branches': nums.n_executed_branches, + 'missing_branches': nums.n_missing_branches, + }) + reported_file['executed_branches'] = list( + _convert_branch_arcs(analysis.executed_branch_arcs()) + ) + reported_file['missing_branches'] = list( + _convert_branch_arcs(analysis.missing_branch_arcs()) + ) + return reported_file + + +def _convert_branch_arcs(branch_arcs): + """Convert branch arcs to a list of two-element tuples.""" + for source, targets in branch_arcs.items(): + for target in targets: + yield source, target diff --git a/utils/python-venv/Lib/site-packages/coverage/lcovreport.py b/utils/python-venv/Lib/site-packages/coverage/lcovreport.py new file mode 100644 index 0000000..4dc73c2 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/lcovreport.py @@ -0,0 +1,106 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""LCOV reporting for coverage.py.""" + +import sys +import base64 +from hashlib import md5 + +from coverage.report import get_analysis_to_report + + +class LcovReporter: + """A reporter for writing LCOV coverage reports.""" + + report_type = "LCOV report" + + def __init__(self, coverage): + self.coverage = coverage + self.config = self.coverage.config + + def report(self, morfs, outfile=None): + """Renders the full lcov report. + + 'morfs' is a list of modules or filenames + + outfile is the file object to write the file into. + """ + + self.coverage.get_data() + outfile = outfile or sys.stdout + + for fr, analysis in get_analysis_to_report(self.coverage, morfs): + self.get_lcov(fr, analysis, outfile) + + def get_lcov(self, fr, analysis, outfile=None): + """Produces the lcov data for a single file. + + This currently supports both line and branch coverage, + however function coverage is not supported. + """ + outfile.write("TN:\n") + outfile.write(f"SF:{fr.relative_filename()}\n") + source_lines = fr.source().splitlines() + + for covered in sorted(analysis.executed): + # Note: Coverage.py currently only supports checking *if* a line + # has been executed, not how many times, so we set this to 1 for + # nice output even if it's technically incorrect. + + # The lines below calculate a 64-bit encoded md5 hash of the line + # corresponding to the DA lines in the lcov file, for either case + # of the line being covered or missed in coverage.py. The final two + # characters of the encoding ("==") are removed from the hash to + # allow genhtml to run on the resulting lcov file. + if source_lines: + line = source_lines[covered-1].encode("utf-8") + else: + line = b"" + hashed = base64.b64encode(md5(line).digest()).decode().rstrip("=") + outfile.write(f"DA:{covered},1,{hashed}\n") + + for missed in sorted(analysis.missing): + assert source_lines + line = source_lines[missed-1].encode("utf-8") + hashed = base64.b64encode(md5(line).digest()).decode().rstrip("=") + outfile.write(f"DA:{missed},0,{hashed}\n") + + outfile.write(f"LF:{len(analysis.statements)}\n") + outfile.write(f"LH:{len(analysis.executed)}\n") + + # More information dense branch coverage data. + missing_arcs = analysis.missing_branch_arcs() + executed_arcs = analysis.executed_branch_arcs() + for block_number, block_line_number in enumerate( + sorted(analysis.branch_stats().keys()) + ): + for branch_number, line_number in enumerate( + sorted(missing_arcs[block_line_number]) + ): + # The exit branches have a negative line number, + # this will not produce valid lcov. Setting + # the line number of the exit branch to 0 will allow + # for valid lcov, while preserving the data. + line_number = max(line_number, 0) + outfile.write(f"BRDA:{line_number},{block_number},{branch_number},-\n") + + # The start value below allows for the block number to be + # preserved between these two for loops (stopping the loop from + # resetting the value of the block number to 0). + for branch_number, line_number in enumerate( + sorted(executed_arcs[block_line_number]), + start=len(missing_arcs[block_line_number]), + ): + line_number = max(line_number, 0) + outfile.write(f"BRDA:{line_number},{block_number},{branch_number},1\n") + + # Summary of the branch coverage. + if analysis.has_arcs(): + branch_stats = analysis.branch_stats() + brf = sum(t for t, k in branch_stats.values()) + brh = brf - sum(t - k for t, k in branch_stats.values()) + outfile.write(f"BRF:{brf}\n") + outfile.write(f"BRH:{brh}\n") + + outfile.write("end_of_record\n") diff --git a/utils/python-venv/Lib/site-packages/coverage/misc.py b/utils/python-venv/Lib/site-packages/coverage/misc.py new file mode 100644 index 0000000..e9b1b8e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/misc.py @@ -0,0 +1,406 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Miscellaneous stuff for coverage.py.""" + +import contextlib +import errno +import hashlib +import importlib +import importlib.util +import inspect +import locale +import os +import os.path +import re +import sys +import types + +from coverage import env +from coverage.exceptions import CoverageException + +# In 6.0, the exceptions moved from misc.py to exceptions.py. But a number of +# other packages were importing the exceptions from misc, so import them here. +# pylint: disable=unused-wildcard-import +from coverage.exceptions import * # pylint: disable=wildcard-import + +ISOLATED_MODULES = {} + + +def isolate_module(mod): + """Copy a module so that we are isolated from aggressive mocking. + + If a test suite mocks os.path.exists (for example), and then we need to use + it during the test, everything will get tangled up if we use their mock. + Making a copy of the module when we import it will isolate coverage.py from + those complications. + """ + if mod not in ISOLATED_MODULES: + new_mod = types.ModuleType(mod.__name__) + ISOLATED_MODULES[mod] = new_mod + for name in dir(mod): + value = getattr(mod, name) + if isinstance(value, types.ModuleType): + value = isolate_module(value) + setattr(new_mod, name, value) + return ISOLATED_MODULES[mod] + +os = isolate_module(os) + + +class SysModuleSaver: + """Saves the contents of sys.modules, and removes new modules later.""" + def __init__(self): + self.old_modules = set(sys.modules) + + def restore(self): + """Remove any modules imported since this object started.""" + new_modules = set(sys.modules) - self.old_modules + for m in new_modules: + del sys.modules[m] + + +@contextlib.contextmanager +def sys_modules_saved(): + """A context manager to remove any modules imported during a block.""" + saver = SysModuleSaver() + try: + yield + finally: + saver.restore() + + +def import_third_party(modname): + """Import a third-party module we need, but might not be installed. + + This also cleans out the module after the import, so that coverage won't + appear to have imported it. This lets the third party use coverage for + their own tests. + + Arguments: + modname (str): the name of the module to import. + + Returns: + The imported module, or None if the module couldn't be imported. + + """ + with sys_modules_saved(): + try: + return importlib.import_module(modname) + except ImportError: + return None + + +def dummy_decorator_with_args(*args_unused, **kwargs_unused): + """Dummy no-op implementation of a decorator with arguments.""" + def _decorator(func): + return func + return _decorator + + +# Use PyContracts for assertion testing on parameters and returns, but only if +# we are running our own test suite. +if env.USE_CONTRACTS: + from contracts import contract # pylint: disable=unused-import + from contracts import new_contract as raw_new_contract + + def new_contract(*args, **kwargs): + """A proxy for contracts.new_contract that doesn't mind happening twice.""" + try: + raw_new_contract(*args, **kwargs) + except ValueError: + # During meta-coverage, this module is imported twice, and + # PyContracts doesn't like redefining contracts. It's OK. + pass + + # Define contract words that PyContract doesn't have. + new_contract('bytes', lambda v: isinstance(v, bytes)) + new_contract('unicode', lambda v: isinstance(v, str)) + + def one_of(argnames): + """Ensure that only one of the argnames is non-None.""" + def _decorator(func): + argnameset = {name.strip() for name in argnames.split(",")} + def _wrapper(*args, **kwargs): + vals = [kwargs.get(name) for name in argnameset] + assert sum(val is not None for val in vals) == 1 + return func(*args, **kwargs) + return _wrapper + return _decorator +else: # pragma: not testing + # We aren't using real PyContracts, so just define our decorators as + # stunt-double no-ops. + contract = dummy_decorator_with_args + one_of = dummy_decorator_with_args + + def new_contract(*args_unused, **kwargs_unused): + """Dummy no-op implementation of `new_contract`.""" + pass + + +def nice_pair(pair): + """Make a nice string representation of a pair of numbers. + + If the numbers are equal, just return the number, otherwise return the pair + with a dash between them, indicating the range. + + """ + start, end = pair + if start == end: + return "%d" % start + else: + return "%d-%d" % (start, end) + + +def expensive(fn): + """A decorator to indicate that a method shouldn't be called more than once. + + Normally, this does nothing. During testing, this raises an exception if + called more than once. + + """ + if env.TESTING: + attr = "_once_" + fn.__name__ + + def _wrapper(self): + if hasattr(self, attr): + raise AssertionError(f"Shouldn't have called {fn.__name__} more than once") + setattr(self, attr, True) + return fn(self) + return _wrapper + else: + return fn # pragma: not testing + + +def bool_or_none(b): + """Return bool(b), but preserve None.""" + if b is None: + return None + else: + return bool(b) + + +def join_regex(regexes): + """Combine a list of regexes into one that matches any of them.""" + return "|".join(f"(?:{r})" for r in regexes) + + +def file_be_gone(path): + """Remove a file, and don't get annoyed if it doesn't exist.""" + try: + os.remove(path) + except OSError as e: + if e.errno != errno.ENOENT: + raise + + +def ensure_dir(directory): + """Make sure the directory exists. + + If `directory` is None or empty, do nothing. + """ + if directory: + os.makedirs(directory, exist_ok=True) + + +def ensure_dir_for_file(path): + """Make sure the directory for the path exists.""" + ensure_dir(os.path.dirname(path)) + + +def output_encoding(outfile=None): + """Determine the encoding to use for output written to `outfile` or stdout.""" + if outfile is None: + outfile = sys.stdout + encoding = ( + getattr(outfile, "encoding", None) or + getattr(sys.__stdout__, "encoding", None) or + locale.getpreferredencoding() + ) + return encoding + + +class Hasher: + """Hashes Python data for fingerprinting.""" + def __init__(self): + self.hash = hashlib.new("sha3_256") + + def update(self, v): + """Add `v` to the hash, recursively if needed.""" + self.hash.update(str(type(v)).encode("utf-8")) + if isinstance(v, str): + self.hash.update(v.encode("utf-8")) + elif isinstance(v, bytes): + self.hash.update(v) + elif v is None: + pass + elif isinstance(v, (int, float)): + self.hash.update(str(v).encode("utf-8")) + elif isinstance(v, (tuple, list)): + for e in v: + self.update(e) + elif isinstance(v, dict): + keys = v.keys() + for k in sorted(keys): + self.update(k) + self.update(v[k]) + else: + for k in dir(v): + if k.startswith('__'): + continue + a = getattr(v, k) + if inspect.isroutine(a): + continue + self.update(k) + self.update(a) + self.hash.update(b'.') + + def hexdigest(self): + """Retrieve the hex digest of the hash.""" + return self.hash.hexdigest()[:32] + + +def _needs_to_implement(that, func_name): + """Helper to raise NotImplementedError in interface stubs.""" + if hasattr(that, "_coverage_plugin_name"): + thing = "Plugin" + name = that._coverage_plugin_name + else: + thing = "Class" + klass = that.__class__ + name = f"{klass.__module__}.{klass.__name__}" + + raise NotImplementedError( + f"{thing} {name!r} needs to implement {func_name}()" + ) + + +class DefaultValue: + """A sentinel object to use for unusual default-value needs. + + Construct with a string that will be used as the repr, for display in help + and Sphinx output. + + """ + def __init__(self, display_as): + self.display_as = display_as + + def __repr__(self): + return self.display_as + + +def substitute_variables(text, variables): + """Substitute ``${VAR}`` variables in `text` with their values. + + Variables in the text can take a number of shell-inspired forms:: + + $VAR + ${VAR} + ${VAR?} strict: an error if VAR isn't defined. + ${VAR-missing} defaulted: "missing" if VAR isn't defined. + $$ just a dollar sign. + + `variables` is a dictionary of variable values. + + Returns the resulting text with values substituted. + + """ + dollar_pattern = r"""(?x) # Use extended regex syntax + \$ # A dollar sign, + (?: # then + (?P\$) | # a dollar sign, or + (?P\w+) | # a plain word, or + { # a {-wrapped + (?P\w+) # word, + (?: + (?P\?) | # with a strict marker + -(?P[^}]*) # or a default value + )? # maybe. + } + ) + """ + + dollar_groups = ('dollar', 'word1', 'word2') + + def dollar_replace(match): + """Called for each $replacement.""" + # Only one of the dollar_groups will have matched, just get its text. + word = next(g for g in match.group(*dollar_groups) if g) # pragma: always breaks + if word == "$": + return "$" + elif word in variables: + return variables[word] + elif match['strict']: + msg = f"Variable {word} is undefined: {text!r}" + raise CoverageException(msg) + else: + return match['defval'] + + text = re.sub(dollar_pattern, dollar_replace, text) + return text + + +def format_local_datetime(dt): + """Return a string with local timezone representing the date. + """ + return dt.astimezone().strftime('%Y-%m-%d %H:%M %z') + + +def import_local_file(modname, modfile=None): + """Import a local file as a module. + + Opens a file in the current directory named `modname`.py, imports it + as `modname`, and returns the module object. `modfile` is the file to + import if it isn't in the current directory. + + """ + if modfile is None: + modfile = modname + '.py' + spec = importlib.util.spec_from_file_location(modname, modfile) + mod = importlib.util.module_from_spec(spec) + sys.modules[modname] = mod + spec.loader.exec_module(mod) + + return mod + + +def human_key(s): + """Turn a string into a list of string and number chunks. + "z23a" -> ["z", 23, "a"] + """ + def tryint(s): + """If `s` is a number, return an int, else `s` unchanged.""" + try: + return int(s) + except ValueError: + return s + + return [tryint(c) for c in re.split(r"(\d+)", s)] + +def human_sorted(strings): + """Sort the given iterable of strings the way that humans expect. + + Numeric components in the strings are sorted as numbers. + + Returns the sorted list. + + """ + return sorted(strings, key=human_key) + +def human_sorted_items(items, reverse=False): + """Sort the (string, value) items the way humans expect. + + Returns the sorted list of items. + """ + return sorted(items, key=lambda pair: (human_key(pair[0]), pair[1]), reverse=reverse) + + +def plural(n, thing="", things=""): + """Pluralize a word. + + If n is 1, return thing. Otherwise return things, or thing+s. + """ + if n == 1: + return thing + else: + return things or (thing + "s") diff --git a/utils/python-venv/Lib/site-packages/coverage/multiproc.py b/utils/python-venv/Lib/site-packages/coverage/multiproc.py new file mode 100644 index 0000000..3a9bd63 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/multiproc.py @@ -0,0 +1,103 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Monkey-patching to add multiprocessing support for coverage.py""" + +import multiprocessing +import multiprocessing.process +import os +import os.path +import sys +import traceback + +from coverage.misc import contract + +# An attribute that will be set on the module to indicate that it has been +# monkey-patched. +PATCHED_MARKER = "_coverage$patched" + + +OriginalProcess = multiprocessing.process.BaseProcess +original_bootstrap = OriginalProcess._bootstrap + +class ProcessWithCoverage(OriginalProcess): # pylint: disable=abstract-method + """A replacement for multiprocess.Process that starts coverage.""" + + def _bootstrap(self, *args, **kwargs): + """Wrapper around _bootstrap to start coverage.""" + try: + from coverage import Coverage # avoid circular import + cov = Coverage(data_suffix=True, auto_data=True) + cov._warn_preimported_source = False + cov.start() + debug = cov._debug + if debug.should("multiproc"): + debug.write("Calling multiprocessing bootstrap") + except Exception: + print("Exception during multiprocessing bootstrap init:") + traceback.print_exc(file=sys.stdout) + sys.stdout.flush() + raise + try: + return original_bootstrap(self, *args, **kwargs) + finally: + if debug.should("multiproc"): + debug.write("Finished multiprocessing bootstrap") + cov.stop() + cov.save() + if debug.should("multiproc"): + debug.write("Saved multiprocessing data") + +class Stowaway: + """An object to pickle, so when it is unpickled, it can apply the monkey-patch.""" + def __init__(self, rcfile): + self.rcfile = rcfile + + def __getstate__(self): + return {'rcfile': self.rcfile} + + def __setstate__(self, state): + patch_multiprocessing(state['rcfile']) + + +@contract(rcfile=str) +def patch_multiprocessing(rcfile): + """Monkey-patch the multiprocessing module. + + This enables coverage measurement of processes started by multiprocessing. + This involves aggressive monkey-patching. + + `rcfile` is the path to the rcfile being used. + + """ + + if hasattr(multiprocessing, PATCHED_MARKER): + return + + OriginalProcess._bootstrap = ProcessWithCoverage._bootstrap + + # Set the value in ProcessWithCoverage that will be pickled into the child + # process. + os.environ["COVERAGE_RCFILE"] = os.path.abspath(rcfile) + + # When spawning processes rather than forking them, we have no state in the + # new process. We sneak in there with a Stowaway: we stuff one of our own + # objects into the data that gets pickled and sent to the sub-process. When + # the Stowaway is unpickled, it's __setstate__ method is called, which + # re-applies the monkey-patch. + # Windows only spawns, so this is needed to keep Windows working. + try: + from multiprocessing import spawn + original_get_preparation_data = spawn.get_preparation_data + except (ImportError, AttributeError): + pass + else: + def get_preparation_data_with_stowaway(name): + """Get the original preparation data, and also insert our stowaway.""" + d = original_get_preparation_data(name) + d['stowaway'] = Stowaway(rcfile) + return d + + spawn.get_preparation_data = get_preparation_data_with_stowaway + + setattr(multiprocessing, PATCHED_MARKER, True) diff --git a/utils/python-venv/Lib/site-packages/coverage/numbits.py b/utils/python-venv/Lib/site-packages/coverage/numbits.py new file mode 100644 index 0000000..297795d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/numbits.py @@ -0,0 +1,156 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +""" +Functions to manipulate packed binary representations of number sets. + +To save space, coverage stores sets of line numbers in SQLite using a packed +binary representation called a numbits. A numbits is a set of positive +integers. + +A numbits is stored as a blob in the database. The exact meaning of the bytes +in the blobs should be considered an implementation detail that might change in +the future. Use these functions to work with those binary blobs of data. + +""" +import json + +from itertools import zip_longest + +from coverage.misc import contract, new_contract + +def _to_blob(b): + """Convert a bytestring into a type SQLite will accept for a blob.""" + return b + +new_contract('blob', lambda v: isinstance(v, bytes)) + + +@contract(nums='Iterable', returns='blob') +def nums_to_numbits(nums): + """Convert `nums` into a numbits. + + Arguments: + nums: a reusable iterable of integers, the line numbers to store. + + Returns: + A binary blob. + """ + try: + nbytes = max(nums) // 8 + 1 + except ValueError: + # nums was empty. + return _to_blob(b'') + b = bytearray(nbytes) + for num in nums: + b[num//8] |= 1 << num % 8 + return _to_blob(bytes(b)) + + +@contract(numbits='blob', returns='list[int]') +def numbits_to_nums(numbits): + """Convert a numbits into a list of numbers. + + Arguments: + numbits: a binary blob, the packed number set. + + Returns: + A list of ints. + + When registered as a SQLite function by :func:`register_sqlite_functions`, + this returns a string, a JSON-encoded list of ints. + + """ + nums = [] + for byte_i, byte in enumerate(numbits): + for bit_i in range(8): + if (byte & (1 << bit_i)): + nums.append(byte_i * 8 + bit_i) + return nums + + +@contract(numbits1='blob', numbits2='blob', returns='blob') +def numbits_union(numbits1, numbits2): + """Compute the union of two numbits. + + Returns: + A new numbits, the union of `numbits1` and `numbits2`. + """ + byte_pairs = zip_longest(numbits1, numbits2, fillvalue=0) + return _to_blob(bytes(b1 | b2 for b1, b2 in byte_pairs)) + + +@contract(numbits1='blob', numbits2='blob', returns='blob') +def numbits_intersection(numbits1, numbits2): + """Compute the intersection of two numbits. + + Returns: + A new numbits, the intersection `numbits1` and `numbits2`. + """ + byte_pairs = zip_longest(numbits1, numbits2, fillvalue=0) + intersection_bytes = bytes(b1 & b2 for b1, b2 in byte_pairs) + return _to_blob(intersection_bytes.rstrip(b'\0')) + + +@contract(numbits1='blob', numbits2='blob', returns='bool') +def numbits_any_intersection(numbits1, numbits2): + """Is there any number that appears in both numbits? + + Determine whether two number sets have a non-empty intersection. This is + faster than computing the intersection. + + Returns: + A bool, True if there is any number in both `numbits1` and `numbits2`. + """ + byte_pairs = zip_longest(numbits1, numbits2, fillvalue=0) + return any(b1 & b2 for b1, b2 in byte_pairs) + + +@contract(num='int', numbits='blob', returns='bool') +def num_in_numbits(num, numbits): + """Does the integer `num` appear in `numbits`? + + Returns: + A bool, True if `num` is a member of `numbits`. + """ + nbyte, nbit = divmod(num, 8) + if nbyte >= len(numbits): + return False + return bool(numbits[nbyte] & (1 << nbit)) + + +def register_sqlite_functions(connection): + """ + Define numbits functions in a SQLite connection. + + This defines these functions for use in SQLite statements: + + * :func:`numbits_union` + * :func:`numbits_intersection` + * :func:`numbits_any_intersection` + * :func:`num_in_numbits` + * :func:`numbits_to_nums` + + `connection` is a :class:`sqlite3.Connection ` + object. After creating the connection, pass it to this function to + register the numbits functions. Then you can use numbits functions in your + queries:: + + import sqlite3 + from coverage.numbits import register_sqlite_functions + + conn = sqlite3.connect('example.db') + register_sqlite_functions(conn) + c = conn.cursor() + # Kind of a nonsense query: + # Find all the files and contexts that executed line 47 in any file: + c.execute( + "select file_id, context_id from line_bits where num_in_numbits(?, numbits)", + (47,) + ) + """ + connection.create_function("numbits_union", 2, numbits_union) + connection.create_function("numbits_intersection", 2, numbits_intersection) + connection.create_function("numbits_any_intersection", 2, numbits_any_intersection) + connection.create_function("num_in_numbits", 2, num_in_numbits) + connection.create_function("numbits_to_nums", 1, lambda b: json.dumps(numbits_to_nums(b))) diff --git a/utils/python-venv/Lib/site-packages/coverage/parser.py b/utils/python-venv/Lib/site-packages/coverage/parser.py new file mode 100644 index 0000000..8b2a9ac --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/parser.py @@ -0,0 +1,1375 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Code parsing for coverage.py.""" + +import ast +import collections +import os +import re +import token +import tokenize + +from coverage import env +from coverage.bytecode import code_objects +from coverage.debug import short_stack +from coverage.exceptions import NoSource, NotPython, _StopEverything +from coverage.misc import contract, join_regex, new_contract, nice_pair, one_of +from coverage.phystokens import compile_unicode, generate_tokens, neuter_encoding_declaration + + +class PythonParser: + """Parse code to find executable lines, excluded lines, etc. + + This information is all based on static analysis: no code execution is + involved. + + """ + @contract(text='unicode|None') + def __init__(self, text=None, filename=None, exclude=None): + """ + Source can be provided as `text`, the text itself, or `filename`, from + which the text will be read. Excluded lines are those that match + `exclude`, a regex. + + """ + assert text or filename, "PythonParser needs either text or filename" + self.filename = filename or "" + self.text = text + if not self.text: + from coverage.python import get_python_source + try: + self.text = get_python_source(self.filename) + except OSError as err: + raise NoSource(f"No source for code: '{self.filename}': {err}") from err + + self.exclude = exclude + + # The text lines of the parsed code. + self.lines = self.text.split('\n') + + # The normalized line numbers of the statements in the code. Exclusions + # are taken into account, and statements are adjusted to their first + # lines. + self.statements = set() + + # The normalized line numbers of the excluded lines in the code, + # adjusted to their first lines. + self.excluded = set() + + # The raw_* attributes are only used in this class, and in + # lab/parser.py to show how this class is working. + + # The line numbers that start statements, as reported by the line + # number table in the bytecode. + self.raw_statements = set() + + # The raw line numbers of excluded lines of code, as marked by pragmas. + self.raw_excluded = set() + + # The line numbers of class definitions. + self.raw_classdefs = set() + + # The line numbers of docstring lines. + self.raw_docstrings = set() + + # Internal detail, used by lab/parser.py. + self.show_tokens = False + + # A dict mapping line numbers to lexical statement starts for + # multi-line statements. + self._multiline = {} + + # Lazily-created arc data, and missing arc descriptions. + self._all_arcs = None + self._missing_arc_fragments = None + + def lines_matching(self, *regexes): + """Find the lines matching one of a list of regexes. + + Returns a set of line numbers, the lines that contain a match for one + of the regexes in `regexes`. The entire line needn't match, just a + part of it. + + """ + combined = join_regex(regexes) + regex_c = re.compile(combined) + matches = set() + for i, ltext in enumerate(self.lines, start=1): + if regex_c.search(ltext): + matches.add(i) + return matches + + def _raw_parse(self): + """Parse the source to find the interesting facts about its lines. + + A handful of attributes are updated. + + """ + # Find lines which match an exclusion pattern. + if self.exclude: + self.raw_excluded = self.lines_matching(self.exclude) + + # Tokenize, to find excluded suites, to find docstrings, and to find + # multi-line statements. + indent = 0 + exclude_indent = 0 + excluding = False + excluding_decorators = False + prev_toktype = token.INDENT + first_line = None + empty = True + first_on_line = True + nesting = 0 + + tokgen = generate_tokens(self.text) + for toktype, ttext, (slineno, _), (elineno, _), ltext in tokgen: + if self.show_tokens: # pragma: debugging + print("%10s %5s %-20r %r" % ( + tokenize.tok_name.get(toktype, toktype), + nice_pair((slineno, elineno)), ttext, ltext + )) + if toktype == token.INDENT: + indent += 1 + elif toktype == token.DEDENT: + indent -= 1 + elif toktype == token.NAME: + if ttext == 'class': + # Class definitions look like branches in the bytecode, so + # we need to exclude them. The simplest way is to note the + # lines with the 'class' keyword. + self.raw_classdefs.add(slineno) + elif toktype == token.OP: + if ttext == ':' and nesting == 0: + should_exclude = (elineno in self.raw_excluded) or excluding_decorators + if not excluding and should_exclude: + # Start excluding a suite. We trigger off of the colon + # token so that the #pragma comment will be recognized on + # the same line as the colon. + self.raw_excluded.add(elineno) + exclude_indent = indent + excluding = True + excluding_decorators = False + elif ttext == '@' and first_on_line: + # A decorator. + if elineno in self.raw_excluded: + excluding_decorators = True + if excluding_decorators: + self.raw_excluded.add(elineno) + elif ttext in "([{": + nesting += 1 + elif ttext in ")]}": + nesting -= 1 + elif toktype == token.STRING and prev_toktype == token.INDENT: + # Strings that are first on an indented line are docstrings. + # (a trick from trace.py in the stdlib.) This works for + # 99.9999% of cases. For the rest (!) see: + # http://stackoverflow.com/questions/1769332/x/1769794#1769794 + self.raw_docstrings.update(range(slineno, elineno+1)) + elif toktype == token.NEWLINE: + if first_line is not None and elineno != first_line: + # We're at the end of a line, and we've ended on a + # different line than the first line of the statement, + # so record a multi-line range. + for l in range(first_line, elineno+1): + self._multiline[l] = first_line + first_line = None + first_on_line = True + + if ttext.strip() and toktype != tokenize.COMMENT: + # A non-whitespace token. + empty = False + if first_line is None: + # The token is not whitespace, and is the first in a + # statement. + first_line = slineno + # Check whether to end an excluded suite. + if excluding and indent <= exclude_indent: + excluding = False + if excluding: + self.raw_excluded.add(elineno) + first_on_line = False + + prev_toktype = toktype + + # Find the starts of the executable statements. + if not empty: + byte_parser = ByteParser(self.text, filename=self.filename) + self.raw_statements.update(byte_parser._find_statements()) + + # The first line of modules can lie and say 1 always, even if the first + # line of code is later. If so, map 1 to the actual first line of the + # module. + if env.PYBEHAVIOR.module_firstline_1 and self._multiline: + self._multiline[1] = min(self.raw_statements) + + def first_line(self, line): + """Return the first line number of the statement including `line`.""" + if line < 0: + line = -self._multiline.get(-line, -line) + else: + line = self._multiline.get(line, line) + return line + + def first_lines(self, lines): + """Map the line numbers in `lines` to the correct first line of the + statement. + + Returns a set of the first lines. + + """ + return {self.first_line(l) for l in lines} + + def translate_lines(self, lines): + """Implement `FileReporter.translate_lines`.""" + return self.first_lines(lines) + + def translate_arcs(self, arcs): + """Implement `FileReporter.translate_arcs`.""" + return [(self.first_line(a), self.first_line(b)) for (a, b) in arcs] + + def parse_source(self): + """Parse source text to find executable lines, excluded lines, etc. + + Sets the .excluded and .statements attributes, normalized to the first + line of multi-line statements. + + """ + try: + self._raw_parse() + except (tokenize.TokenError, IndentationError) as err: + if hasattr(err, "lineno"): + lineno = err.lineno # IndentationError + else: + lineno = err.args[1][0] # TokenError + raise NotPython( + f"Couldn't parse '{self.filename}' as Python source: " + + f"{err.args[0]!r} at line {lineno}" + ) from err + + self.excluded = self.first_lines(self.raw_excluded) + + ignore = self.excluded | self.raw_docstrings + starts = self.raw_statements - ignore + self.statements = self.first_lines(starts) - ignore + + def arcs(self): + """Get information about the arcs available in the code. + + Returns a set of line number pairs. Line numbers have been normalized + to the first line of multi-line statements. + + """ + if self._all_arcs is None: + self._analyze_ast() + return self._all_arcs + + def _analyze_ast(self): + """Run the AstArcAnalyzer and save its results. + + `_all_arcs` is the set of arcs in the code. + + """ + aaa = AstArcAnalyzer(self.text, self.raw_statements, self._multiline) + aaa.analyze() + + self._all_arcs = set() + for l1, l2 in aaa.arcs: + fl1 = self.first_line(l1) + fl2 = self.first_line(l2) + if fl1 != fl2: + self._all_arcs.add((fl1, fl2)) + + self._missing_arc_fragments = aaa.missing_arc_fragments + + def exit_counts(self): + """Get a count of exits from that each line. + + Excluded lines are excluded. + + """ + exit_counts = collections.defaultdict(int) + for l1, l2 in self.arcs(): + if l1 < 0: + # Don't ever report -1 as a line number + continue + if l1 in self.excluded: + # Don't report excluded lines as line numbers. + continue + if l2 in self.excluded: + # Arcs to excluded lines shouldn't count. + continue + exit_counts[l1] += 1 + + # Class definitions have one extra exit, so remove one for each: + for l in self.raw_classdefs: + # Ensure key is there: class definitions can include excluded lines. + if l in exit_counts: + exit_counts[l] -= 1 + + return exit_counts + + def missing_arc_description(self, start, end, executed_arcs=None): + """Provide an English sentence describing a missing arc.""" + if self._missing_arc_fragments is None: + self._analyze_ast() + + actual_start = start + + if ( + executed_arcs and + end < 0 and end == -start and + (end, start) not in executed_arcs and + (end, start) in self._missing_arc_fragments + ): + # It's a one-line callable, and we never even started it, + # and we have a message about not starting it. + start, end = end, start + + fragment_pairs = self._missing_arc_fragments.get((start, end), [(None, None)]) + + msgs = [] + for smsg, emsg in fragment_pairs: + if emsg is None: + if end < 0: + # Hmm, maybe we have a one-line callable, let's check. + if (-end, end) in self._missing_arc_fragments: + return self.missing_arc_description(-end, end) + emsg = "didn't jump to the function exit" + else: + emsg = "didn't jump to line {lineno}" + emsg = emsg.format(lineno=end) + + msg = f"line {actual_start} {emsg}" + if smsg is not None: + msg += f", because {smsg.format(lineno=actual_start)}" + + msgs.append(msg) + + return " or ".join(msgs) + + +class ByteParser: + """Parse bytecode to understand the structure of code.""" + + @contract(text='unicode') + def __init__(self, text, code=None, filename=None): + self.text = text + if code: + self.code = code + else: + try: + self.code = compile_unicode(text, filename, "exec") + except SyntaxError as synerr: + raise NotPython( + "Couldn't parse '%s' as Python source: '%s' at line %d" % ( + filename, synerr.msg, synerr.lineno + ) + ) from synerr + + # Alternative Python implementations don't always provide all the + # attributes on code objects that we need to do the analysis. + for attr in ['co_lnotab', 'co_firstlineno']: + if not hasattr(self.code, attr): + raise _StopEverything( # pragma: only jython + "This implementation of Python doesn't support code analysis.\n" + + "Run coverage.py under another Python for this command." + ) + + def child_parsers(self): + """Iterate over all the code objects nested within this one. + + The iteration includes `self` as its first value. + + """ + return (ByteParser(self.text, code=c) for c in code_objects(self.code)) + + def _line_numbers(self): + """Yield the line numbers possible in this code object. + + Uses co_lnotab described in Python/compile.c to find the + line numbers. Produces a sequence: l0, l1, ... + """ + if hasattr(self.code, "co_lines"): + for _, _, line in self.code.co_lines(): + if line: + yield line + else: + # Adapted from dis.py in the standard library. + byte_increments = self.code.co_lnotab[0::2] + line_increments = self.code.co_lnotab[1::2] + + last_line_num = None + line_num = self.code.co_firstlineno + byte_num = 0 + for byte_incr, line_incr in zip(byte_increments, line_increments): + if byte_incr: + if line_num != last_line_num: + yield line_num + last_line_num = line_num + byte_num += byte_incr + if env.PYBEHAVIOR.negative_lnotab and line_incr >= 0x80: + line_incr -= 0x100 + line_num += line_incr + if line_num != last_line_num: + yield line_num + + def _find_statements(self): + """Find the statements in `self.code`. + + Produce a sequence of line numbers that start statements. Recurses + into all code objects reachable from `self.code`. + + """ + for bp in self.child_parsers(): + # Get all of the lineno information from this code. + yield from bp._line_numbers() + + +# +# AST analysis +# + +class BlockBase: + """ + Blocks need to handle various exiting statements in their own ways. + + All of these methods take a list of exits, and a callable `add_arc` + function that they can use to add arcs if needed. They return True if the + exits are handled, or False if the search should continue up the block + stack. + """ + # pylint: disable=unused-argument + def process_break_exits(self, exits, add_arc): + """Process break exits.""" + # Because break can only appear in loops, and most subclasses + # implement process_break_exits, this function is never reached. + raise AssertionError + + def process_continue_exits(self, exits, add_arc): + """Process continue exits.""" + # Because continue can only appear in loops, and most subclasses + # implement process_continue_exits, this function is never reached. + raise AssertionError + + def process_raise_exits(self, exits, add_arc): + """Process raise exits.""" + return False + + def process_return_exits(self, exits, add_arc): + """Process return exits.""" + return False + + +class LoopBlock(BlockBase): + """A block on the block stack representing a `for` or `while` loop.""" + @contract(start=int) + def __init__(self, start): + # The line number where the loop starts. + self.start = start + # A set of ArcStarts, the arcs from break statements exiting this loop. + self.break_exits = set() + + def process_break_exits(self, exits, add_arc): + self.break_exits.update(exits) + return True + + def process_continue_exits(self, exits, add_arc): + for xit in exits: + add_arc(xit.lineno, self.start, xit.cause) + return True + + +class FunctionBlock(BlockBase): + """A block on the block stack representing a function definition.""" + @contract(start=int, name=str) + def __init__(self, start, name): + # The line number where the function starts. + self.start = start + # The name of the function. + self.name = name + + def process_raise_exits(self, exits, add_arc): + for xit in exits: + add_arc( + xit.lineno, -self.start, xit.cause, + f"didn't except from function {self.name!r}", + ) + return True + + def process_return_exits(self, exits, add_arc): + for xit in exits: + add_arc( + xit.lineno, -self.start, xit.cause, + f"didn't return from function {self.name!r}", + ) + return True + + +class TryBlock(BlockBase): + """A block on the block stack representing a `try` block.""" + @contract(handler_start='int|None', final_start='int|None') + def __init__(self, handler_start, final_start): + # The line number of the first "except" handler, if any. + self.handler_start = handler_start + # The line number of the "finally:" clause, if any. + self.final_start = final_start + + # The ArcStarts for breaks/continues/returns/raises inside the "try:" + # that need to route through the "finally:" clause. + self.break_from = set() + self.continue_from = set() + self.raise_from = set() + self.return_from = set() + + def process_break_exits(self, exits, add_arc): + if self.final_start is not None: + self.break_from.update(exits) + return True + return False + + def process_continue_exits(self, exits, add_arc): + if self.final_start is not None: + self.continue_from.update(exits) + return True + return False + + def process_raise_exits(self, exits, add_arc): + if self.handler_start is not None: + for xit in exits: + add_arc(xit.lineno, self.handler_start, xit.cause) + else: + assert self.final_start is not None + self.raise_from.update(exits) + return True + + def process_return_exits(self, exits, add_arc): + if self.final_start is not None: + self.return_from.update(exits) + return True + return False + + +class WithBlock(BlockBase): + """A block on the block stack representing a `with` block.""" + @contract(start=int) + def __init__(self, start): + # We only ever use this block if it is needed, so that we don't have to + # check this setting in all the methods. + assert env.PYBEHAVIOR.exit_through_with + + # The line number of the with statement. + self.start = start + + # The ArcStarts for breaks/continues/returns/raises inside the "with:" + # that need to go through the with-statement while exiting. + self.break_from = set() + self.continue_from = set() + self.return_from = set() + + def _process_exits(self, exits, add_arc, from_set=None): + """Helper to process the four kinds of exits.""" + for xit in exits: + add_arc(xit.lineno, self.start, xit.cause) + if from_set is not None: + from_set.update(exits) + return True + + def process_break_exits(self, exits, add_arc): + return self._process_exits(exits, add_arc, self.break_from) + + def process_continue_exits(self, exits, add_arc): + return self._process_exits(exits, add_arc, self.continue_from) + + def process_raise_exits(self, exits, add_arc): + return self._process_exits(exits, add_arc) + + def process_return_exits(self, exits, add_arc): + return self._process_exits(exits, add_arc, self.return_from) + + +class ArcStart(collections.namedtuple("Arc", "lineno, cause")): + """The information needed to start an arc. + + `lineno` is the line number the arc starts from. + + `cause` is an English text fragment used as the `startmsg` for + AstArcAnalyzer.missing_arc_fragments. It will be used to describe why an + arc wasn't executed, so should fit well into a sentence of the form, + "Line 17 didn't run because {cause}." The fragment can include "{lineno}" + to have `lineno` interpolated into it. + + """ + def __new__(cls, lineno, cause=None): + return super().__new__(cls, lineno, cause) + + +# Define contract words that PyContract doesn't have. +# ArcStarts is for a list or set of ArcStart's. +new_contract('ArcStarts', lambda seq: all(isinstance(x, ArcStart) for x in seq)) + + +class NodeList: + """A synthetic fictitious node, containing a sequence of nodes. + + This is used when collapsing optimized if-statements, to represent the + unconditional execution of one of the clauses. + + """ + def __init__(self, body): + self.body = body + self.lineno = body[0].lineno + +# TODO: some add_arcs methods here don't add arcs, they return them. Rename them. +# TODO: the cause messages have too many commas. +# TODO: Shouldn't the cause messages join with "and" instead of "or"? + +def ast_parse(text): + """How we create an AST parse.""" + return ast.parse(neuter_encoding_declaration(text)) + + +class AstArcAnalyzer: + """Analyze source text with an AST to find executable code paths.""" + + @contract(text='unicode', statements=set) + def __init__(self, text, statements, multiline): + self.root_node = ast_parse(text) + # TODO: I think this is happening in too many places. + self.statements = {multiline.get(l, l) for l in statements} + self.multiline = multiline + + # Turn on AST dumps with an environment variable. + # $set_env.py: COVERAGE_AST_DUMP - Dump the AST nodes when parsing code. + dump_ast = bool(int(os.environ.get("COVERAGE_AST_DUMP", 0))) + + if dump_ast: # pragma: debugging + # Dump the AST so that failing tests have helpful output. + print(f"Statements: {self.statements}") + print(f"Multiline map: {self.multiline}") + ast_dump(self.root_node) + + self.arcs = set() + + # A map from arc pairs to a list of pairs of sentence fragments: + # { (start, end): [(startmsg, endmsg), ...], } + # + # For an arc from line 17, they should be usable like: + # "Line 17 {endmsg}, because {startmsg}" + self.missing_arc_fragments = collections.defaultdict(list) + self.block_stack = [] + + # $set_env.py: COVERAGE_TRACK_ARCS - Trace possible arcs added while parsing code. + self.debug = bool(int(os.environ.get("COVERAGE_TRACK_ARCS", 0))) + + def analyze(self): + """Examine the AST tree from `root_node` to determine possible arcs. + + This sets the `arcs` attribute to be a set of (from, to) line number + pairs. + + """ + for node in ast.walk(self.root_node): + node_name = node.__class__.__name__ + code_object_handler = getattr(self, "_code_object__" + node_name, None) + if code_object_handler is not None: + code_object_handler(node) + + @contract(start=int, end=int) + def add_arc(self, start, end, smsg=None, emsg=None): + """Add an arc, including message fragments to use if it is missing.""" + if self.debug: # pragma: debugging + print(f"\nAdding possible arc: ({start}, {end}): {smsg!r}, {emsg!r}") + print(short_stack(limit=10)) + self.arcs.add((start, end)) + + if smsg is not None or emsg is not None: + self.missing_arc_fragments[(start, end)].append((smsg, emsg)) + + def nearest_blocks(self): + """Yield the blocks in nearest-to-farthest order.""" + return reversed(self.block_stack) + + @contract(returns=int) + def line_for_node(self, node): + """What is the right line number to use for this node? + + This dispatches to _line__Node functions where needed. + + """ + node_name = node.__class__.__name__ + handler = getattr(self, "_line__" + node_name, None) + if handler is not None: + return handler(node) + else: + return node.lineno + + def _line_decorated(self, node): + """Compute first line number for things that can be decorated (classes and functions).""" + lineno = node.lineno + if env.PYBEHAVIOR.trace_decorated_def or env.PYBEHAVIOR.def_ast_no_decorator: + if node.decorator_list: + lineno = node.decorator_list[0].lineno + return lineno + + def _line__Assign(self, node): + return self.line_for_node(node.value) + + _line__ClassDef = _line_decorated + + def _line__Dict(self, node): + if node.keys: + if node.keys[0] is not None: + return node.keys[0].lineno + else: + # Unpacked dict literals `{**{'a':1}}` have None as the key, + # use the value in that case. + return node.values[0].lineno + else: + return node.lineno + + _line__FunctionDef = _line_decorated + _line__AsyncFunctionDef = _line_decorated + + def _line__List(self, node): + if node.elts: + return self.line_for_node(node.elts[0]) + else: + return node.lineno + + def _line__Module(self, node): + if env.PYBEHAVIOR.module_firstline_1: + return 1 + elif node.body: + return self.line_for_node(node.body[0]) + else: + # Empty modules have no line number, they always start at 1. + return 1 + + # The node types that just flow to the next node with no complications. + OK_TO_DEFAULT = { + "AnnAssign", "Assign", "Assert", "AugAssign", "Delete", "Expr", "Global", + "Import", "ImportFrom", "Nonlocal", "Pass", + } + + @contract(returns='ArcStarts') + def add_arcs(self, node): + """Add the arcs for `node`. + + Return a set of ArcStarts, exits from this node to the next. Because a + node represents an entire sub-tree (including its children), the exits + from a node can be arbitrarily complex:: + + if something(1): + if other(2): + doit(3) + else: + doit(5) + + There are two exits from line 1: they start at line 3 and line 5. + + """ + node_name = node.__class__.__name__ + handler = getattr(self, "_handle__" + node_name, None) + if handler is not None: + return handler(node) + else: + # No handler: either it's something that's ok to default (a simple + # statement), or it's something we overlooked. + if env.TESTING: + if node_name not in self.OK_TO_DEFAULT: + raise Exception(f"*** Unhandled: {node}") # pragma: only failure + + # Default for simple statements: one exit from this node. + return {ArcStart(self.line_for_node(node))} + + @one_of("from_start, prev_starts") + @contract(returns='ArcStarts') + def add_body_arcs(self, body, from_start=None, prev_starts=None): + """Add arcs for the body of a compound statement. + + `body` is the body node. `from_start` is a single `ArcStart` that can + be the previous line in flow before this body. `prev_starts` is a set + of ArcStarts that can be the previous line. Only one of them should be + given. + + Returns a set of ArcStarts, the exits from this body. + + """ + if prev_starts is None: + prev_starts = {from_start} + for body_node in body: + lineno = self.line_for_node(body_node) + first_line = self.multiline.get(lineno, lineno) + if first_line not in self.statements: + body_node = self.find_non_missing_node(body_node) + if body_node is None: + continue + lineno = self.line_for_node(body_node) + for prev_start in prev_starts: + self.add_arc(prev_start.lineno, lineno, prev_start.cause) + prev_starts = self.add_arcs(body_node) + return prev_starts + + def find_non_missing_node(self, node): + """Search `node` looking for a child that has not been optimized away. + + This might return the node you started with, or it will work recursively + to find a child node in self.statements. + + Returns a node, or None if none of the node remains. + + """ + # This repeats work just done in add_body_arcs, but this duplication + # means we can avoid a function call in the 99.9999% case of not + # optimizing away statements. + lineno = self.line_for_node(node) + first_line = self.multiline.get(lineno, lineno) + if first_line in self.statements: + return node + + missing_fn = getattr(self, "_missing__" + node.__class__.__name__, None) + if missing_fn: + node = missing_fn(node) + else: + node = None + return node + + # Missing nodes: _missing__* + # + # Entire statements can be optimized away by Python. They will appear in + # the AST, but not the bytecode. These functions are called (by + # find_non_missing_node) to find a node to use instead of the missing + # node. They can return None if the node should truly be gone. + + def _missing__If(self, node): + # If the if-node is missing, then one of its children might still be + # here, but not both. So return the first of the two that isn't missing. + # Use a NodeList to hold the clauses as a single node. + non_missing = self.find_non_missing_node(NodeList(node.body)) + if non_missing: + return non_missing + if node.orelse: + return self.find_non_missing_node(NodeList(node.orelse)) + return None + + def _missing__NodeList(self, node): + # A NodeList might be a mixture of missing and present nodes. Find the + # ones that are present. + non_missing_children = [] + for child in node.body: + child = self.find_non_missing_node(child) + if child is not None: + non_missing_children.append(child) + + # Return the simplest representation of the present children. + if not non_missing_children: + return None + if len(non_missing_children) == 1: + return non_missing_children[0] + return NodeList(non_missing_children) + + def _missing__While(self, node): + body_nodes = self.find_non_missing_node(NodeList(node.body)) + if not body_nodes: + return None + # Make a synthetic While-true node. + new_while = ast.While() + new_while.lineno = body_nodes.lineno + new_while.test = ast.Name() + new_while.test.lineno = body_nodes.lineno + new_while.test.id = "True" + new_while.body = body_nodes.body + new_while.orelse = None + return new_while + + def is_constant_expr(self, node): + """Is this a compile-time constant?""" + node_name = node.__class__.__name__ + if node_name in ["Constant", "NameConstant", "Num"]: + return "Num" + elif node_name == "Name": + if node.id in ["True", "False", "None", "__debug__"]: + return "Name" + return None + + # In the fullness of time, these might be good tests to write: + # while EXPR: + # while False: + # listcomps hidden deep in other expressions + # listcomps hidden in lists: x = [[i for i in range(10)]] + # nested function definitions + + + # Exit processing: process_*_exits + # + # These functions process the four kinds of jump exits: break, continue, + # raise, and return. To figure out where an exit goes, we have to look at + # the block stack context. For example, a break will jump to the nearest + # enclosing loop block, or the nearest enclosing finally block, whichever + # is nearer. + + @contract(exits='ArcStarts') + def process_break_exits(self, exits): + """Add arcs due to jumps from `exits` being breaks.""" + for block in self.nearest_blocks(): # pragma: always breaks + if block.process_break_exits(exits, self.add_arc): + break + + @contract(exits='ArcStarts') + def process_continue_exits(self, exits): + """Add arcs due to jumps from `exits` being continues.""" + for block in self.nearest_blocks(): # pragma: always breaks + if block.process_continue_exits(exits, self.add_arc): + break + + @contract(exits='ArcStarts') + def process_raise_exits(self, exits): + """Add arcs due to jumps from `exits` being raises.""" + for block in self.nearest_blocks(): + if block.process_raise_exits(exits, self.add_arc): + break + + @contract(exits='ArcStarts') + def process_return_exits(self, exits): + """Add arcs due to jumps from `exits` being returns.""" + for block in self.nearest_blocks(): # pragma: always breaks + if block.process_return_exits(exits, self.add_arc): + break + + # Handlers: _handle__* + # + # Each handler deals with a specific AST node type, dispatched from + # add_arcs. Handlers return the set of exits from that node, and can + # also call self.add_arc to record arcs they find. These functions mirror + # the Python semantics of each syntactic construct. See the docstring + # for add_arcs to understand the concept of exits from a node. + # + # Every node type that represents a statement should have a handler, or it + # should be listed in OK_TO_DEFAULT. + + @contract(returns='ArcStarts') + def _handle__Break(self, node): + here = self.line_for_node(node) + break_start = ArcStart(here, cause="the break on line {lineno} wasn't executed") + self.process_break_exits([break_start]) + return set() + + @contract(returns='ArcStarts') + def _handle_decorated(self, node): + """Add arcs for things that can be decorated (classes and functions).""" + main_line = last = node.lineno + decs = node.decorator_list + if decs: + if env.PYBEHAVIOR.trace_decorated_def or env.PYBEHAVIOR.def_ast_no_decorator: + last = None + for dec_node in decs: + dec_start = self.line_for_node(dec_node) + if last is not None and dec_start != last: + self.add_arc(last, dec_start) + last = dec_start + if env.PYBEHAVIOR.trace_decorated_def: + self.add_arc(last, main_line) + last = main_line + if env.PYBEHAVIOR.trace_decorator_line_again: + for top, bot in zip(decs, decs[1:]): + self.add_arc(self.line_for_node(bot), self.line_for_node(top)) + self.add_arc(self.line_for_node(decs[0]), main_line) + self.add_arc(main_line, self.line_for_node(decs[-1])) + # The definition line may have been missed, but we should have it + # in `self.statements`. For some constructs, `line_for_node` is + # not what we'd think of as the first line in the statement, so map + # it to the first one. + if node.body: + body_start = self.line_for_node(node.body[0]) + body_start = self.multiline.get(body_start, body_start) + for lineno in range(last+1, body_start): + if lineno in self.statements: + self.add_arc(last, lineno) + last = lineno + # The body is handled in collect_arcs. + return {ArcStart(last)} + + _handle__ClassDef = _handle_decorated + + @contract(returns='ArcStarts') + def _handle__Continue(self, node): + here = self.line_for_node(node) + continue_start = ArcStart(here, cause="the continue on line {lineno} wasn't executed") + self.process_continue_exits([continue_start]) + return set() + + @contract(returns='ArcStarts') + def _handle__For(self, node): + start = self.line_for_node(node.iter) + self.block_stack.append(LoopBlock(start=start)) + from_start = ArcStart(start, cause="the loop on line {lineno} never started") + exits = self.add_body_arcs(node.body, from_start=from_start) + # Any exit from the body will go back to the top of the loop. + for xit in exits: + self.add_arc(xit.lineno, start, xit.cause) + my_block = self.block_stack.pop() + exits = my_block.break_exits + from_start = ArcStart(start, cause="the loop on line {lineno} didn't complete") + if node.orelse: + else_exits = self.add_body_arcs(node.orelse, from_start=from_start) + exits |= else_exits + else: + # No else clause: exit from the for line. + exits.add(from_start) + return exits + + _handle__AsyncFor = _handle__For + + _handle__FunctionDef = _handle_decorated + _handle__AsyncFunctionDef = _handle_decorated + + @contract(returns='ArcStarts') + def _handle__If(self, node): + start = self.line_for_node(node.test) + from_start = ArcStart(start, cause="the condition on line {lineno} was never true") + exits = self.add_body_arcs(node.body, from_start=from_start) + from_start = ArcStart(start, cause="the condition on line {lineno} was never false") + exits |= self.add_body_arcs(node.orelse, from_start=from_start) + return exits + + @contract(returns='ArcStarts') + def _handle__Match(self, node): + start = self.line_for_node(node) + last_start = start + exits = set() + had_wildcard = False + for case in node.cases: + case_start = self.line_for_node(case.pattern) + if isinstance(case.pattern, ast.MatchAs): + had_wildcard = True + self.add_arc(last_start, case_start, "the pattern on line {lineno} always matched") + from_start = ArcStart(case_start, cause="the pattern on line {lineno} never matched") + exits |= self.add_body_arcs(case.body, from_start=from_start) + last_start = case_start + if not had_wildcard: + exits.add(from_start) + return exits + + @contract(returns='ArcStarts') + def _handle__NodeList(self, node): + start = self.line_for_node(node) + exits = self.add_body_arcs(node.body, from_start=ArcStart(start)) + return exits + + @contract(returns='ArcStarts') + def _handle__Raise(self, node): + here = self.line_for_node(node) + raise_start = ArcStart(here, cause="the raise on line {lineno} wasn't executed") + self.process_raise_exits([raise_start]) + # `raise` statement jumps away, no exits from here. + return set() + + @contract(returns='ArcStarts') + def _handle__Return(self, node): + here = self.line_for_node(node) + return_start = ArcStart(here, cause="the return on line {lineno} wasn't executed") + self.process_return_exits([return_start]) + # `return` statement jumps away, no exits from here. + return set() + + @contract(returns='ArcStarts') + def _handle__Try(self, node): + if node.handlers: + handler_start = self.line_for_node(node.handlers[0]) + else: + handler_start = None + + if node.finalbody: + final_start = self.line_for_node(node.finalbody[0]) + else: + final_start = None + + # This is true by virtue of Python syntax: have to have either except + # or finally, or both. + assert handler_start is not None or final_start is not None + try_block = TryBlock(handler_start, final_start) + self.block_stack.append(try_block) + + start = self.line_for_node(node) + exits = self.add_body_arcs(node.body, from_start=ArcStart(start)) + + # We're done with the `try` body, so this block no longer handles + # exceptions. We keep the block so the `finally` clause can pick up + # flows from the handlers and `else` clause. + if node.finalbody: + try_block.handler_start = None + if node.handlers: + # If there are `except` clauses, then raises in the try body + # will already jump to them. Start this set over for raises in + # `except` and `else`. + try_block.raise_from = set() + else: + self.block_stack.pop() + + handler_exits = set() + + if node.handlers: + last_handler_start = None + for handler_node in node.handlers: + handler_start = self.line_for_node(handler_node) + if last_handler_start is not None: + self.add_arc(last_handler_start, handler_start) + last_handler_start = handler_start + from_cause = "the exception caught by line {lineno} didn't happen" + from_start = ArcStart(handler_start, cause=from_cause) + handler_exits |= self.add_body_arcs(handler_node.body, from_start=from_start) + + if node.orelse: + exits = self.add_body_arcs(node.orelse, prev_starts=exits) + + exits |= handler_exits + + if node.finalbody: + self.block_stack.pop() + final_from = ( # You can get to the `finally` clause from: + exits | # the exits of the body or `else` clause, + try_block.break_from | # or a `break`, + try_block.continue_from | # or a `continue`, + try_block.raise_from | # or a `raise`, + try_block.return_from # or a `return`. + ) + + final_exits = self.add_body_arcs(node.finalbody, prev_starts=final_from) + + if try_block.break_from: + if env.PYBEHAVIOR.finally_jumps_back: + for break_line in try_block.break_from: + lineno = break_line.lineno + cause = break_line.cause.format(lineno=lineno) + for final_exit in final_exits: + self.add_arc(final_exit.lineno, lineno, cause) + breaks = try_block.break_from + else: + breaks = self._combine_finally_starts(try_block.break_from, final_exits) + self.process_break_exits(breaks) + + if try_block.continue_from: + if env.PYBEHAVIOR.finally_jumps_back: + for continue_line in try_block.continue_from: + lineno = continue_line.lineno + cause = continue_line.cause.format(lineno=lineno) + for final_exit in final_exits: + self.add_arc(final_exit.lineno, lineno, cause) + continues = try_block.continue_from + else: + continues = self._combine_finally_starts(try_block.continue_from, final_exits) + self.process_continue_exits(continues) + + if try_block.raise_from: + self.process_raise_exits( + self._combine_finally_starts(try_block.raise_from, final_exits) + ) + + if try_block.return_from: + if env.PYBEHAVIOR.finally_jumps_back: + for return_line in try_block.return_from: + lineno = return_line.lineno + cause = return_line.cause.format(lineno=lineno) + for final_exit in final_exits: + self.add_arc(final_exit.lineno, lineno, cause) + returns = try_block.return_from + else: + returns = self._combine_finally_starts(try_block.return_from, final_exits) + self.process_return_exits(returns) + + if exits: + # The finally clause's exits are only exits for the try block + # as a whole if the try block had some exits to begin with. + exits = final_exits + + return exits + + @contract(starts='ArcStarts', exits='ArcStarts', returns='ArcStarts') + def _combine_finally_starts(self, starts, exits): + """Helper for building the cause of `finally` branches. + + "finally" clauses might not execute their exits, and the causes could + be due to a failure to execute any of the exits in the try block. So + we use the causes from `starts` as the causes for `exits`. + """ + causes = [] + for start in sorted(starts): + if start.cause is not None: + causes.append(start.cause.format(lineno=start.lineno)) + cause = " or ".join(causes) + exits = {ArcStart(xit.lineno, cause) for xit in exits} + return exits + + @contract(returns='ArcStarts') + def _handle__While(self, node): + start = to_top = self.line_for_node(node.test) + constant_test = self.is_constant_expr(node.test) + top_is_body0 = False + if constant_test: + top_is_body0 = True + if env.PYBEHAVIOR.keep_constant_test: + top_is_body0 = False + if top_is_body0: + to_top = self.line_for_node(node.body[0]) + self.block_stack.append(LoopBlock(start=to_top)) + from_start = ArcStart(start, cause="the condition on line {lineno} was never true") + exits = self.add_body_arcs(node.body, from_start=from_start) + for xit in exits: + self.add_arc(xit.lineno, to_top, xit.cause) + exits = set() + my_block = self.block_stack.pop() + exits.update(my_block.break_exits) + from_start = ArcStart(start, cause="the condition on line {lineno} was never false") + if node.orelse: + else_exits = self.add_body_arcs(node.orelse, from_start=from_start) + exits |= else_exits + else: + # No `else` clause: you can exit from the start. + if not constant_test: + exits.add(from_start) + return exits + + @contract(returns='ArcStarts') + def _handle__With(self, node): + start = self.line_for_node(node) + if env.PYBEHAVIOR.exit_through_with: + self.block_stack.append(WithBlock(start=start)) + exits = self.add_body_arcs(node.body, from_start=ArcStart(start)) + if env.PYBEHAVIOR.exit_through_with: + with_block = self.block_stack.pop() + with_exit = {ArcStart(start)} + if exits: + for xit in exits: + self.add_arc(xit.lineno, start) + exits = with_exit + if with_block.break_from: + self.process_break_exits( + self._combine_finally_starts(with_block.break_from, with_exit) + ) + if with_block.continue_from: + self.process_continue_exits( + self._combine_finally_starts(with_block.continue_from, with_exit) + ) + if with_block.return_from: + self.process_return_exits( + self._combine_finally_starts(with_block.return_from, with_exit) + ) + return exits + + _handle__AsyncWith = _handle__With + + # Code object dispatchers: _code_object__* + # + # These methods are used by analyze() as the start of the analysis. + # There is one for each construct with a code object. + + def _code_object__Module(self, node): + start = self.line_for_node(node) + if node.body: + exits = self.add_body_arcs(node.body, from_start=ArcStart(-start)) + for xit in exits: + self.add_arc(xit.lineno, -start, xit.cause, "didn't exit the module") + else: + # Empty module. + self.add_arc(-start, start) + self.add_arc(start, -start) + + def _code_object__FunctionDef(self, node): + start = self.line_for_node(node) + self.block_stack.append(FunctionBlock(start=start, name=node.name)) + exits = self.add_body_arcs(node.body, from_start=ArcStart(-start)) + self.process_return_exits(exits) + self.block_stack.pop() + + _code_object__AsyncFunctionDef = _code_object__FunctionDef + + def _code_object__ClassDef(self, node): + start = self.line_for_node(node) + self.add_arc(-start, start) + exits = self.add_body_arcs(node.body, from_start=ArcStart(start)) + for xit in exits: + self.add_arc( + xit.lineno, -start, xit.cause, + f"didn't exit the body of class {node.name!r}", + ) + + def _make_expression_code_method(noun): # pylint: disable=no-self-argument + """A function to make methods for expression-based callable _code_object__ methods.""" + def _code_object__expression_callable(self, node): + start = self.line_for_node(node) + self.add_arc(-start, start, None, f"didn't run the {noun} on line {start}") + self.add_arc(start, -start, None, f"didn't finish the {noun} on line {start}") + return _code_object__expression_callable + + _code_object__Lambda = _make_expression_code_method("lambda") + _code_object__GeneratorExp = _make_expression_code_method("generator expression") + _code_object__DictComp = _make_expression_code_method("dictionary comprehension") + _code_object__SetComp = _make_expression_code_method("set comprehension") + _code_object__ListComp = _make_expression_code_method("list comprehension") + + +# Code only used when dumping the AST for debugging. + +SKIP_DUMP_FIELDS = ["ctx"] + +def _is_simple_value(value): + """Is `value` simple enough to be displayed on a single line?""" + return ( + value in [None, [], (), {}, set()] or + isinstance(value, (bytes, int, float, str)) + ) + +def ast_dump(node, depth=0, print=print): # pylint: disable=redefined-builtin + """Dump the AST for `node`. + + This recursively walks the AST, printing a readable version. + + """ + indent = " " * depth + lineno = getattr(node, "lineno", None) + if lineno is not None: + linemark = f" @ {node.lineno},{node.col_offset}" + if hasattr(node, "end_lineno"): + linemark += ":" + if node.end_lineno != node.lineno: + linemark += f"{node.end_lineno}," + linemark += f"{node.end_col_offset}" + else: + linemark = "" + head = f"{indent}<{node.__class__.__name__}{linemark}" + + named_fields = [ + (name, value) + for name, value in ast.iter_fields(node) + if name not in SKIP_DUMP_FIELDS + ] + if not named_fields: + print(f"{head}>") + elif len(named_fields) == 1 and _is_simple_value(named_fields[0][1]): + field_name, value = named_fields[0] + print(f"{head} {field_name}: {value!r}>") + else: + print(head) + if 0: + print("{}# mro: {}".format( + indent, ", ".join(c.__name__ for c in node.__class__.__mro__[1:]), + )) + next_indent = indent + " " + for field_name, value in named_fields: + prefix = f"{next_indent}{field_name}:" + if _is_simple_value(value): + print(f"{prefix} {value!r}") + elif isinstance(value, list): + print(f"{prefix} [") + for n in value: + if _is_simple_value(n): + print(f"{next_indent} {n!r}") + else: + ast_dump(n, depth + 8, print=print) + print(f"{next_indent}]") + else: + print(prefix) + ast_dump(value, depth + 8, print=print) + + print(f"{indent}>") diff --git a/utils/python-venv/Lib/site-packages/coverage/phystokens.py b/utils/python-venv/Lib/site-packages/coverage/phystokens.py new file mode 100644 index 0000000..c6dc1e0 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/phystokens.py @@ -0,0 +1,227 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Better tokenizing for coverage.py.""" + +import ast +import keyword +import re +import token +import tokenize + +from coverage import env +from coverage.misc import contract + + +def phys_tokens(toks): + """Return all physical tokens, even line continuations. + + tokenize.generate_tokens() doesn't return a token for the backslash that + continues lines. This wrapper provides those tokens so that we can + re-create a faithful representation of the original source. + + Returns the same values as generate_tokens() + + """ + last_line = None + last_lineno = -1 + last_ttext = None + for ttype, ttext, (slineno, scol), (elineno, ecol), ltext in toks: + if last_lineno != elineno: + if last_line and last_line.endswith("\\\n"): + # We are at the beginning of a new line, and the last line + # ended with a backslash. We probably have to inject a + # backslash token into the stream. Unfortunately, there's more + # to figure out. This code:: + # + # usage = """\ + # HEY THERE + # """ + # + # triggers this condition, but the token text is:: + # + # '"""\\\nHEY THERE\n"""' + # + # so we need to figure out if the backslash is already in the + # string token or not. + inject_backslash = True + if last_ttext.endswith("\\"): + inject_backslash = False + elif ttype == token.STRING: + if "\n" in ttext and ttext.split('\n', 1)[0][-1] == '\\': + # It's a multi-line string and the first line ends with + # a backslash, so we don't need to inject another. + inject_backslash = False + if inject_backslash: + # Figure out what column the backslash is in. + ccol = len(last_line.split("\n")[-2]) - 1 + # Yield the token, with a fake token type. + yield ( + 99999, "\\\n", + (slineno, ccol), (slineno, ccol+2), + last_line + ) + last_line = ltext + if ttype not in (tokenize.NEWLINE, tokenize.NL): + last_ttext = ttext + yield ttype, ttext, (slineno, scol), (elineno, ecol), ltext + last_lineno = elineno + + +class MatchCaseFinder(ast.NodeVisitor): + """Helper for finding match/case lines.""" + def __init__(self, source): + # This will be the set of line numbers that start match or case statements. + self.match_case_lines = set() + self.visit(ast.parse(source)) + + def visit_Match(self, node): + """Invoked by ast.NodeVisitor.visit""" + self.match_case_lines.add(node.lineno) + for case in node.cases: + self.match_case_lines.add(case.pattern.lineno) + self.generic_visit(node) + + +@contract(source='unicode') +def source_token_lines(source): + """Generate a series of lines, one for each line in `source`. + + Each line is a list of pairs, each pair is a token:: + + [('key', 'def'), ('ws', ' '), ('nam', 'hello'), ('op', '('), ... ] + + Each pair has a token class, and the token text. + + If you concatenate all the token texts, and then join them with newlines, + you should have your original `source` back, with two differences: + trailing whitespace is not preserved, and a final line with no newline + is indistinguishable from a final line with a newline. + + """ + + ws_tokens = {token.INDENT, token.DEDENT, token.NEWLINE, tokenize.NL} + line = [] + col = 0 + + source = source.expandtabs(8).replace('\r\n', '\n') + tokgen = generate_tokens(source) + + if env.PYBEHAVIOR.soft_keywords: + match_case_lines = MatchCaseFinder(source).match_case_lines + + for ttype, ttext, (sline, scol), (_, ecol), _ in phys_tokens(tokgen): + mark_start = True + for part in re.split('(\n)', ttext): + if part == '\n': + yield line + line = [] + col = 0 + mark_end = False + elif part == '': + mark_end = False + elif ttype in ws_tokens: + mark_end = False + else: + if mark_start and scol > col: + line.append(("ws", " " * (scol - col))) + mark_start = False + tok_class = tokenize.tok_name.get(ttype, 'xx').lower()[:3] + if ttype == token.NAME: + if keyword.iskeyword(ttext): + # Hard keywords are always keywords. + tok_class = "key" + elif env.PYBEHAVIOR.soft_keywords and keyword.issoftkeyword(ttext): + # Soft keywords appear at the start of the line, on lines that start + # match or case statements. + if len(line) == 0: + is_start_of_line = True + elif (len(line) == 1) and line[0][0] == "ws": + is_start_of_line = True + else: + is_start_of_line = False + if is_start_of_line and sline in match_case_lines: + tok_class = "key" + line.append((tok_class, part)) + mark_end = True + scol = 0 + if mark_end: + col = ecol + + if line: + yield line + + +class CachedTokenizer: + """A one-element cache around tokenize.generate_tokens. + + When reporting, coverage.py tokenizes files twice, once to find the + structure of the file, and once to syntax-color it. Tokenizing is + expensive, and easily cached. + + This is a one-element cache so that our twice-in-a-row tokenizing doesn't + actually tokenize twice. + + """ + def __init__(self): + self.last_text = None + self.last_tokens = None + + @contract(text='unicode') + def generate_tokens(self, text): + """A stand-in for `tokenize.generate_tokens`.""" + if text != self.last_text: + self.last_text = text + readline = iter(text.splitlines(True)).__next__ + try: + self.last_tokens = list(tokenize.generate_tokens(readline)) + except: + self.last_text = None + raise + return self.last_tokens + +# Create our generate_tokens cache as a callable replacement function. +generate_tokens = CachedTokenizer().generate_tokens + + +COOKIE_RE = re.compile(r"^[ \t]*#.*coding[:=][ \t]*([-\w.]+)", flags=re.MULTILINE) + +@contract(source='bytes') +def source_encoding(source): + """Determine the encoding for `source`, according to PEP 263. + + `source` is a byte string: the text of the program. + + Returns a string, the name of the encoding. + + """ + readline = iter(source.splitlines(True)).__next__ + return tokenize.detect_encoding(readline)[0] + + +@contract(source='unicode') +def compile_unicode(source, filename, mode): + """Just like the `compile` builtin, but works on any Unicode string. + + Python 2's compile() builtin has a stupid restriction: if the source string + is Unicode, then it may not have a encoding declaration in it. Why not? + Who knows! It also decodes to utf-8, and then tries to interpret those + utf-8 bytes according to the encoding declaration. Why? Who knows! + + This function neuters the coding declaration, and compiles it. + + """ + source = neuter_encoding_declaration(source) + code = compile(source, filename, mode) + return code + + +@contract(source='unicode', returns='unicode') +def neuter_encoding_declaration(source): + """Return `source`, with any encoding declaration neutered.""" + if COOKIE_RE.search(source): + source_lines = source.splitlines(True) + for lineno in range(min(2, len(source_lines))): + source_lines[lineno] = COOKIE_RE.sub("# (deleted declaration)", source_lines[lineno]) + source = "".join(source_lines) + return source diff --git a/utils/python-venv/Lib/site-packages/coverage/plugin.py b/utils/python-venv/Lib/site-packages/coverage/plugin.py new file mode 100644 index 0000000..bf30b1b --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/plugin.py @@ -0,0 +1,521 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +""" +.. versionadded:: 4.0 + +Plug-in interfaces for coverage.py. + +Coverage.py supports a few different kinds of plug-ins that change its +behavior: + +* File tracers implement tracing of non-Python file types. + +* Configurers add custom configuration, using Python code to change the + configuration. + +* Dynamic context switchers decide when the dynamic context has changed, for + example, to record what test function produced the coverage. + +To write a coverage.py plug-in, create a module with a subclass of +:class:`~coverage.CoveragePlugin`. You will override methods in your class to +participate in various aspects of coverage.py's processing. +Different types of plug-ins have to override different methods. + +Any plug-in can optionally implement :meth:`~coverage.CoveragePlugin.sys_info` +to provide debugging information about their operation. + +Your module must also contain a ``coverage_init`` function that registers an +instance of your plug-in class:: + + import coverage + + class MyPlugin(coverage.CoveragePlugin): + ... + + def coverage_init(reg, options): + reg.add_file_tracer(MyPlugin()) + +You use the `reg` parameter passed to your ``coverage_init`` function to +register your plug-in object. The registration method you call depends on +what kind of plug-in it is. + +If your plug-in takes options, the `options` parameter is a dictionary of your +plug-in's options from the coverage.py configuration file. Use them however +you want to configure your object before registering it. + +Coverage.py will store its own information on your plug-in object, using +attributes whose names start with ``_coverage_``. Don't be startled. + +.. warning:: + Plug-ins are imported by coverage.py before it begins measuring code. + If you write a plugin in your own project, it might import your product + code before coverage.py can start measuring. This can result in your + own code being reported as missing. + + One solution is to put your plugins in your project tree, but not in + your importable Python package. + + +.. _file_tracer_plugins: + +File Tracers +============ + +File tracers implement measurement support for non-Python files. File tracers +implement the :meth:`~coverage.CoveragePlugin.file_tracer` method to claim +files and the :meth:`~coverage.CoveragePlugin.file_reporter` method to report +on those files. + +In your ``coverage_init`` function, use the ``add_file_tracer`` method to +register your file tracer. + + +.. _configurer_plugins: + +Configurers +=========== + +.. versionadded:: 4.5 + +Configurers modify the configuration of coverage.py during start-up. +Configurers implement the :meth:`~coverage.CoveragePlugin.configure` method to +change the configuration. + +In your ``coverage_init`` function, use the ``add_configurer`` method to +register your configurer. + + +.. _dynamic_context_plugins: + +Dynamic Context Switchers +========================= + +.. versionadded:: 5.0 + +Dynamic context switcher plugins implement the +:meth:`~coverage.CoveragePlugin.dynamic_context` method to dynamically compute +the context label for each measured frame. + +Computed context labels are useful when you want to group measured data without +modifying the source code. + +For example, you could write a plugin that checks `frame.f_code` to inspect +the currently executed method, and set the context label to a fully qualified +method name if it's an instance method of `unittest.TestCase` and the method +name starts with 'test'. Such a plugin would provide basic coverage grouping +by test and could be used with test runners that have no built-in coveragepy +support. + +In your ``coverage_init`` function, use the ``add_dynamic_context`` method to +register your dynamic context switcher. + +""" + +import functools + +from coverage import files +from coverage.misc import contract, _needs_to_implement + + +class CoveragePlugin: + """Base class for coverage.py plug-ins.""" + + def file_tracer(self, filename): # pylint: disable=unused-argument + """Get a :class:`FileTracer` object for a file. + + Plug-in type: file tracer. + + Every Python source file is offered to your plug-in to give it a chance + to take responsibility for tracing the file. If your plug-in can + handle the file, it should return a :class:`FileTracer` object. + Otherwise return None. + + There is no way to register your plug-in for particular files. + Instead, this method is invoked for all files as they are executed, + and the plug-in decides whether it can trace the file or not. + Be prepared for `filename` to refer to all kinds of files that have + nothing to do with your plug-in. + + The file name will be a Python file being executed. There are two + broad categories of behavior for a plug-in, depending on the kind of + files your plug-in supports: + + * Static file names: each of your original source files has been + converted into a distinct Python file. Your plug-in is invoked with + the Python file name, and it maps it back to its original source + file. + + * Dynamic file names: all of your source files are executed by the same + Python file. In this case, your plug-in implements + :meth:`FileTracer.dynamic_source_filename` to provide the actual + source file for each execution frame. + + `filename` is a string, the path to the file being considered. This is + the absolute real path to the file. If you are comparing to other + paths, be sure to take this into account. + + Returns a :class:`FileTracer` object to use to trace `filename`, or + None if this plug-in cannot trace this file. + + """ + return None + + def file_reporter(self, filename): # pylint: disable=unused-argument + """Get the :class:`FileReporter` class to use for a file. + + Plug-in type: file tracer. + + This will only be invoked if `filename` returns non-None from + :meth:`file_tracer`. It's an error to return None from this method. + + Returns a :class:`FileReporter` object to use to report on `filename`, + or the string `"python"` to have coverage.py treat the file as Python. + + """ + _needs_to_implement(self, "file_reporter") + + def dynamic_context(self, frame): # pylint: disable=unused-argument + """Get the dynamically computed context label for `frame`. + + Plug-in type: dynamic context. + + This method is invoked for each frame when outside of a dynamic + context, to see if a new dynamic context should be started. If it + returns a string, a new context label is set for this and deeper + frames. The dynamic context ends when this frame returns. + + Returns a string to start a new dynamic context, or None if no new + context should be started. + + """ + return None + + def find_executable_files(self, src_dir): # pylint: disable=unused-argument + """Yield all of the executable files in `src_dir`, recursively. + + Plug-in type: file tracer. + + Executability is a plug-in-specific property, but generally means files + which would have been considered for coverage analysis, had they been + included automatically. + + Returns or yields a sequence of strings, the paths to files that could + have been executed, including files that had been executed. + + """ + return [] + + def configure(self, config): + """Modify the configuration of coverage.py. + + Plug-in type: configurer. + + This method is called during coverage.py start-up, to give your plug-in + a chance to change the configuration. The `config` parameter is an + object with :meth:`~coverage.Coverage.get_option` and + :meth:`~coverage.Coverage.set_option` methods. Do not call any other + methods on the `config` object. + + """ + pass + + def sys_info(self): + """Get a list of information useful for debugging. + + Plug-in type: any. + + This method will be invoked for ``--debug=sys``. Your + plug-in can return any information it wants to be displayed. + + Returns a list of pairs: `[(name, value), ...]`. + + """ + return [] + + +class FileTracer: + """Support needed for files during the execution phase. + + File tracer plug-ins implement subclasses of FileTracer to return from + their :meth:`~CoveragePlugin.file_tracer` method. + + You may construct this object from :meth:`CoveragePlugin.file_tracer` any + way you like. A natural choice would be to pass the file name given to + `file_tracer`. + + `FileTracer` objects should only be created in the + :meth:`CoveragePlugin.file_tracer` method. + + See :ref:`howitworks` for details of the different coverage.py phases. + + """ + + def source_filename(self): + """The source file name for this file. + + This may be any file name you like. A key responsibility of a plug-in + is to own the mapping from Python execution back to whatever source + file name was originally the source of the code. + + See :meth:`CoveragePlugin.file_tracer` for details about static and + dynamic file names. + + Returns the file name to credit with this execution. + + """ + _needs_to_implement(self, "source_filename") + + def has_dynamic_source_filename(self): + """Does this FileTracer have dynamic source file names? + + FileTracers can provide dynamically determined file names by + implementing :meth:`dynamic_source_filename`. Invoking that function + is expensive. To determine whether to invoke it, coverage.py uses the + result of this function to know if it needs to bother invoking + :meth:`dynamic_source_filename`. + + See :meth:`CoveragePlugin.file_tracer` for details about static and + dynamic file names. + + Returns True if :meth:`dynamic_source_filename` should be called to get + dynamic source file names. + + """ + return False + + def dynamic_source_filename(self, filename, frame): # pylint: disable=unused-argument + """Get a dynamically computed source file name. + + Some plug-ins need to compute the source file name dynamically for each + frame. + + This function will not be invoked if + :meth:`has_dynamic_source_filename` returns False. + + Returns the source file name for this frame, or None if this frame + shouldn't be measured. + + """ + return None + + def line_number_range(self, frame): + """Get the range of source line numbers for a given a call frame. + + The call frame is examined, and the source line number in the original + file is returned. The return value is a pair of numbers, the starting + line number and the ending line number, both inclusive. For example, + returning (5, 7) means that lines 5, 6, and 7 should be considered + executed. + + This function might decide that the frame doesn't indicate any lines + from the source file were executed. Return (-1, -1) in this case to + tell coverage.py that no lines should be recorded for this frame. + + """ + lineno = frame.f_lineno + return lineno, lineno + + +@functools.total_ordering +class FileReporter: + """Support needed for files during the analysis and reporting phases. + + File tracer plug-ins implement a subclass of `FileReporter`, and return + instances from their :meth:`CoveragePlugin.file_reporter` method. + + There are many methods here, but only :meth:`lines` is required, to provide + the set of executable lines in the file. + + See :ref:`howitworks` for details of the different coverage.py phases. + + """ + + def __init__(self, filename): + """Simple initialization of a `FileReporter`. + + The `filename` argument is the path to the file being reported. This + will be available as the `.filename` attribute on the object. Other + method implementations on this base class rely on this attribute. + + """ + self.filename = filename + + def __repr__(self): + return "<{0.__class__.__name__} filename={0.filename!r}>".format(self) + + def relative_filename(self): + """Get the relative file name for this file. + + This file path will be displayed in reports. The default + implementation will supply the actual project-relative file path. You + only need to supply this method if you have an unusual syntax for file + paths. + + """ + return files.relative_filename(self.filename) + + @contract(returns='unicode') + def source(self): + """Get the source for the file. + + Returns a Unicode string. + + The base implementation simply reads the `self.filename` file and + decodes it as UTF-8. Override this method if your file isn't readable + as a text file, or if you need other encoding support. + + """ + with open(self.filename, "rb") as f: + return f.read().decode("utf-8") + + def lines(self): + """Get the executable lines in this file. + + Your plug-in must determine which lines in the file were possibly + executable. This method returns a set of those line numbers. + + Returns a set of line numbers. + + """ + _needs_to_implement(self, "lines") + + def excluded_lines(self): + """Get the excluded executable lines in this file. + + Your plug-in can use any method it likes to allow the user to exclude + executable lines from consideration. + + Returns a set of line numbers. + + The base implementation returns the empty set. + + """ + return set() + + def translate_lines(self, lines): + """Translate recorded lines into reported lines. + + Some file formats will want to report lines slightly differently than + they are recorded. For example, Python records the last line of a + multi-line statement, but reports are nicer if they mention the first + line. + + Your plug-in can optionally define this method to perform these kinds + of adjustment. + + `lines` is a sequence of integers, the recorded line numbers. + + Returns a set of integers, the adjusted line numbers. + + The base implementation returns the numbers unchanged. + + """ + return set(lines) + + def arcs(self): + """Get the executable arcs in this file. + + To support branch coverage, your plug-in needs to be able to indicate + possible execution paths, as a set of line number pairs. Each pair is + a `(prev, next)` pair indicating that execution can transition from the + `prev` line number to the `next` line number. + + Returns a set of pairs of line numbers. The default implementation + returns an empty set. + + """ + return set() + + def no_branch_lines(self): + """Get the lines excused from branch coverage in this file. + + Your plug-in can use any method it likes to allow the user to exclude + lines from consideration of branch coverage. + + Returns a set of line numbers. + + The base implementation returns the empty set. + + """ + return set() + + def translate_arcs(self, arcs): + """Translate recorded arcs into reported arcs. + + Similar to :meth:`translate_lines`, but for arcs. `arcs` is a set of + line number pairs. + + Returns a set of line number pairs. + + The default implementation returns `arcs` unchanged. + + """ + return arcs + + def exit_counts(self): + """Get a count of exits from that each line. + + To determine which lines are branches, coverage.py looks for lines that + have more than one exit. This function creates a dict mapping each + executable line number to a count of how many exits it has. + + To be honest, this feels wrong, and should be refactored. Let me know + if you attempt to implement this method in your plug-in... + + """ + return {} + + def missing_arc_description(self, start, end, executed_arcs=None): # pylint: disable=unused-argument + """Provide an English sentence describing a missing arc. + + The `start` and `end` arguments are the line numbers of the missing + arc. Negative numbers indicate entering or exiting code objects. + + The `executed_arcs` argument is a set of line number pairs, the arcs + that were executed in this file. + + By default, this simply returns the string "Line {start} didn't jump + to {end}". + + """ + return f"Line {start} didn't jump to line {end}" + + def source_token_lines(self): + """Generate a series of tokenized lines, one for each line in `source`. + + These tokens are used for syntax-colored reports. + + Each line is a list of pairs, each pair is a token:: + + [('key', 'def'), ('ws', ' '), ('nam', 'hello'), ('op', '('), ... ] + + Each pair has a token class, and the token text. The token classes + are: + + * ``'com'``: a comment + * ``'key'``: a keyword + * ``'nam'``: a name, or identifier + * ``'num'``: a number + * ``'op'``: an operator + * ``'str'``: a string literal + * ``'ws'``: some white space + * ``'txt'``: some other kind of text + + If you concatenate all the token texts, and then join them with + newlines, you should have your original source back. + + The default implementation simply returns each line tagged as + ``'txt'``. + + """ + for line in self.source().splitlines(): + yield [('txt', line)] + + def __eq__(self, other): + return isinstance(other, FileReporter) and self.filename == other.filename + + def __lt__(self, other): + return isinstance(other, FileReporter) and self.filename < other.filename + + __hash__ = None # This object doesn't need to be hashed. diff --git a/utils/python-venv/Lib/site-packages/coverage/plugin_support.py b/utils/python-venv/Lib/site-packages/coverage/plugin_support.py new file mode 100644 index 0000000..0b89239 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/plugin_support.py @@ -0,0 +1,280 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Support for plugins.""" + +import os +import os.path +import sys + +from coverage.exceptions import PluginError +from coverage.misc import isolate_module +from coverage.plugin import CoveragePlugin, FileTracer, FileReporter + +os = isolate_module(os) + + +class Plugins: + """The currently loaded collection of coverage.py plugins.""" + + def __init__(self): + self.order = [] + self.names = {} + self.file_tracers = [] + self.configurers = [] + self.context_switchers = [] + + self.current_module = None + self.debug = None + + @classmethod + def load_plugins(cls, modules, config, debug=None): + """Load plugins from `modules`. + + Returns a Plugins object with the loaded and configured plugins. + + """ + plugins = cls() + plugins.debug = debug + + for module in modules: + plugins.current_module = module + __import__(module) + mod = sys.modules[module] + + coverage_init = getattr(mod, "coverage_init", None) + if not coverage_init: + raise PluginError( + f"Plugin module {module!r} didn't define a coverage_init function" + ) + + options = config.get_plugin_options(module) + coverage_init(plugins, options) + + plugins.current_module = None + return plugins + + def add_file_tracer(self, plugin): + """Add a file tracer plugin. + + `plugin` is an instance of a third-party plugin class. It must + implement the :meth:`CoveragePlugin.file_tracer` method. + + """ + self._add_plugin(plugin, self.file_tracers) + + def add_configurer(self, plugin): + """Add a configuring plugin. + + `plugin` is an instance of a third-party plugin class. It must + implement the :meth:`CoveragePlugin.configure` method. + + """ + self._add_plugin(plugin, self.configurers) + + def add_dynamic_context(self, plugin): + """Add a dynamic context plugin. + + `plugin` is an instance of a third-party plugin class. It must + implement the :meth:`CoveragePlugin.dynamic_context` method. + + """ + self._add_plugin(plugin, self.context_switchers) + + def add_noop(self, plugin): + """Add a plugin that does nothing. + + This is only useful for testing the plugin support. + + """ + self._add_plugin(plugin, None) + + def _add_plugin(self, plugin, specialized): + """Add a plugin object. + + `plugin` is a :class:`CoveragePlugin` instance to add. `specialized` + is a list to append the plugin to. + + """ + plugin_name = f"{self.current_module}.{plugin.__class__.__name__}" + if self.debug and self.debug.should('plugin'): + self.debug.write(f"Loaded plugin {self.current_module!r}: {plugin!r}") + labelled = LabelledDebug(f"plugin {self.current_module!r}", self.debug) + plugin = DebugPluginWrapper(plugin, labelled) + + # pylint: disable=attribute-defined-outside-init + plugin._coverage_plugin_name = plugin_name + plugin._coverage_enabled = True + self.order.append(plugin) + self.names[plugin_name] = plugin + if specialized is not None: + specialized.append(plugin) + + def __bool__(self): + return bool(self.order) + + def __iter__(self): + return iter(self.order) + + def get(self, plugin_name): + """Return a plugin by name.""" + return self.names[plugin_name] + + +class LabelledDebug: + """A Debug writer, but with labels for prepending to the messages.""" + + def __init__(self, label, debug, prev_labels=()): + self.labels = list(prev_labels) + [label] + self.debug = debug + + def add_label(self, label): + """Add a label to the writer, and return a new `LabelledDebug`.""" + return LabelledDebug(label, self.debug, self.labels) + + def message_prefix(self): + """The prefix to use on messages, combining the labels.""" + prefixes = self.labels + [''] + return ":\n".join(" "*i+label for i, label in enumerate(prefixes)) + + def write(self, message): + """Write `message`, but with the labels prepended.""" + self.debug.write(f"{self.message_prefix()}{message}") + + +class DebugPluginWrapper(CoveragePlugin): + """Wrap a plugin, and use debug to report on what it's doing.""" + + def __init__(self, plugin, debug): + super().__init__() + self.plugin = plugin + self.debug = debug + + def file_tracer(self, filename): + tracer = self.plugin.file_tracer(filename) + self.debug.write(f"file_tracer({filename!r}) --> {tracer!r}") + if tracer: + debug = self.debug.add_label(f"file {filename!r}") + tracer = DebugFileTracerWrapper(tracer, debug) + return tracer + + def file_reporter(self, filename): + reporter = self.plugin.file_reporter(filename) + self.debug.write(f"file_reporter({filename!r}) --> {reporter!r}") + if reporter: + debug = self.debug.add_label(f"file {filename!r}") + reporter = DebugFileReporterWrapper(filename, reporter, debug) + return reporter + + def dynamic_context(self, frame): + context = self.plugin.dynamic_context(frame) + self.debug.write(f"dynamic_context({frame!r}) --> {context!r}") + return context + + def find_executable_files(self, src_dir): + executable_files = self.plugin.find_executable_files(src_dir) + self.debug.write(f"find_executable_files({src_dir!r}) --> {executable_files!r}") + return executable_files + + def configure(self, config): + self.debug.write(f"configure({config!r})") + self.plugin.configure(config) + + def sys_info(self): + return self.plugin.sys_info() + + +class DebugFileTracerWrapper(FileTracer): + """A debugging `FileTracer`.""" + + def __init__(self, tracer, debug): + self.tracer = tracer + self.debug = debug + + def _show_frame(self, frame): + """A short string identifying a frame, for debug messages.""" + return "%s@%d" % ( + os.path.basename(frame.f_code.co_filename), + frame.f_lineno, + ) + + def source_filename(self): + sfilename = self.tracer.source_filename() + self.debug.write(f"source_filename() --> {sfilename!r}") + return sfilename + + def has_dynamic_source_filename(self): + has = self.tracer.has_dynamic_source_filename() + self.debug.write(f"has_dynamic_source_filename() --> {has!r}") + return has + + def dynamic_source_filename(self, filename, frame): + dyn = self.tracer.dynamic_source_filename(filename, frame) + self.debug.write("dynamic_source_filename({!r}, {}) --> {!r}".format( + filename, self._show_frame(frame), dyn, + )) + return dyn + + def line_number_range(self, frame): + pair = self.tracer.line_number_range(frame) + self.debug.write(f"line_number_range({self._show_frame(frame)}) --> {pair!r}") + return pair + + +class DebugFileReporterWrapper(FileReporter): + """A debugging `FileReporter`.""" + + def __init__(self, filename, reporter, debug): + super().__init__(filename) + self.reporter = reporter + self.debug = debug + + def relative_filename(self): + ret = self.reporter.relative_filename() + self.debug.write(f"relative_filename() --> {ret!r}") + return ret + + def lines(self): + ret = self.reporter.lines() + self.debug.write(f"lines() --> {ret!r}") + return ret + + def excluded_lines(self): + ret = self.reporter.excluded_lines() + self.debug.write(f"excluded_lines() --> {ret!r}") + return ret + + def translate_lines(self, lines): + ret = self.reporter.translate_lines(lines) + self.debug.write(f"translate_lines({lines!r}) --> {ret!r}") + return ret + + def translate_arcs(self, arcs): + ret = self.reporter.translate_arcs(arcs) + self.debug.write(f"translate_arcs({arcs!r}) --> {ret!r}") + return ret + + def no_branch_lines(self): + ret = self.reporter.no_branch_lines() + self.debug.write(f"no_branch_lines() --> {ret!r}") + return ret + + def exit_counts(self): + ret = self.reporter.exit_counts() + self.debug.write(f"exit_counts() --> {ret!r}") + return ret + + def arcs(self): + ret = self.reporter.arcs() + self.debug.write(f"arcs() --> {ret!r}") + return ret + + def source(self): + ret = self.reporter.source() + self.debug.write("source() --> %d chars" % (len(ret),)) + return ret + + def source_token_lines(self): + ret = list(self.reporter.source_token_lines()) + self.debug.write("source_token_lines() --> %d tokens" % (len(ret),)) + return ret diff --git a/utils/python-venv/Lib/site-packages/coverage/python.py b/utils/python-venv/Lib/site-packages/coverage/python.py new file mode 100644 index 0000000..da43e6e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/python.py @@ -0,0 +1,247 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Python source expertise for coverage.py""" + +import os.path +import types +import zipimport + +from coverage import env +from coverage.exceptions import CoverageException, NoSource +from coverage.files import canonical_filename, relative_filename +from coverage.misc import contract, expensive, isolate_module, join_regex +from coverage.parser import PythonParser +from coverage.phystokens import source_token_lines, source_encoding +from coverage.plugin import FileReporter + +os = isolate_module(os) + + +@contract(returns='bytes') +def read_python_source(filename): + """Read the Python source text from `filename`. + + Returns bytes. + + """ + with open(filename, "rb") as f: + source = f.read() + + if env.IRONPYTHON: + # IronPython reads Unicode strings even for "rb" files. + source = bytes(source) + + return source.replace(b"\r\n", b"\n").replace(b"\r", b"\n") + + +@contract(returns='unicode') +def get_python_source(filename): + """Return the source code, as unicode.""" + base, ext = os.path.splitext(filename) + if ext == ".py" and env.WINDOWS: + exts = [".py", ".pyw"] + else: + exts = [ext] + + for ext in exts: + try_filename = base + ext + if os.path.exists(try_filename): + # A regular text file: open it. + source = read_python_source(try_filename) + break + + # Maybe it's in a zip file? + source = get_zip_bytes(try_filename) + if source is not None: + break + else: + # Couldn't find source. + raise NoSource(f"No source for code: '{filename}'.") + + # Replace \f because of http://bugs.python.org/issue19035 + source = source.replace(b'\f', b' ') + source = source.decode(source_encoding(source), "replace") + + # Python code should always end with a line with a newline. + if source and source[-1] != '\n': + source += '\n' + + return source + + +@contract(returns='bytes|None') +def get_zip_bytes(filename): + """Get data from `filename` if it is a zip file path. + + Returns the bytestring data read from the zip file, or None if no zip file + could be found or `filename` isn't in it. The data returned will be + an empty string if the file is empty. + + """ + markers = ['.zip'+os.sep, '.egg'+os.sep, '.pex'+os.sep] + for marker in markers: + if marker in filename: + parts = filename.split(marker) + try: + zi = zipimport.zipimporter(parts[0]+marker[:-1]) + except zipimport.ZipImportError: + continue + try: + data = zi.get_data(parts[1]) + except OSError: + continue + return data + return None + + +def source_for_file(filename): + """Return the source filename for `filename`. + + Given a file name being traced, return the best guess as to the source + file to attribute it to. + + """ + if filename.endswith(".py"): + # .py files are themselves source files. + return filename + + elif filename.endswith((".pyc", ".pyo")): + # Bytecode files probably have source files near them. + py_filename = filename[:-1] + if os.path.exists(py_filename): + # Found a .py file, use that. + return py_filename + if env.WINDOWS: + # On Windows, it could be a .pyw file. + pyw_filename = py_filename + "w" + if os.path.exists(pyw_filename): + return pyw_filename + # Didn't find source, but it's probably the .py file we want. + return py_filename + + elif filename.endswith("$py.class"): + # Jython is easy to guess. + return filename[:-9] + ".py" + + # No idea, just use the file name as-is. + return filename + + +def source_for_morf(morf): + """Get the source filename for the module-or-file `morf`.""" + if hasattr(morf, '__file__') and morf.__file__: + filename = morf.__file__ + elif isinstance(morf, types.ModuleType): + # A module should have had .__file__, otherwise we can't use it. + # This could be a PEP-420 namespace package. + raise CoverageException(f"Module {morf} has no file") + else: + filename = morf + + filename = source_for_file(filename) + return filename + + +class PythonFileReporter(FileReporter): + """Report support for a Python file.""" + + def __init__(self, morf, coverage=None): + self.coverage = coverage + + filename = source_for_morf(morf) + + super().__init__(canonical_filename(filename)) + + if hasattr(morf, '__name__'): + name = morf.__name__.replace(".", os.sep) + if os.path.basename(filename).startswith('__init__.'): + name += os.sep + "__init__" + name += ".py" + else: + name = relative_filename(filename) + self.relname = name + + self._source = None + self._parser = None + self._excluded = None + + def __repr__(self): + return f"" + + @contract(returns='unicode') + def relative_filename(self): + return self.relname + + @property + def parser(self): + """Lazily create a :class:`PythonParser`.""" + if self._parser is None: + self._parser = PythonParser( + filename=self.filename, + exclude=self.coverage._exclude_regex('exclude'), + ) + self._parser.parse_source() + return self._parser + + def lines(self): + """Return the line numbers of statements in the file.""" + return self.parser.statements + + def excluded_lines(self): + """Return the line numbers of statements in the file.""" + return self.parser.excluded + + def translate_lines(self, lines): + return self.parser.translate_lines(lines) + + def translate_arcs(self, arcs): + return self.parser.translate_arcs(arcs) + + @expensive + def no_branch_lines(self): + no_branch = self.parser.lines_matching( + join_regex(self.coverage.config.partial_list), + join_regex(self.coverage.config.partial_always_list), + ) + return no_branch + + @expensive + def arcs(self): + return self.parser.arcs() + + @expensive + def exit_counts(self): + return self.parser.exit_counts() + + def missing_arc_description(self, start, end, executed_arcs=None): + return self.parser.missing_arc_description(start, end, executed_arcs) + + @contract(returns='unicode') + def source(self): + if self._source is None: + self._source = get_python_source(self.filename) + return self._source + + def should_be_python(self): + """Does it seem like this file should contain Python? + + This is used to decide if a file reported as part of the execution of + a program was really likely to have contained Python in the first + place. + + """ + # Get the file extension. + _, ext = os.path.splitext(self.filename) + + # Anything named *.py* should be Python. + if ext.startswith('.py'): + return True + # A file with no extension should be Python. + if not ext: + return True + # Everything else is probably not Python. + return False + + def source_token_lines(self): + return source_token_lines(self.source()) diff --git a/utils/python-venv/Lib/site-packages/coverage/pytracer.py b/utils/python-venv/Lib/site-packages/coverage/pytracer.py new file mode 100644 index 0000000..4f13807 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/pytracer.py @@ -0,0 +1,306 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Raw data collector for coverage.py.""" + +import atexit +import dis +import sys + +from coverage import env + +# We need the YIELD_VALUE opcode below, in a comparison-friendly form. +RESUME = dis.opmap.get('RESUME') +RETURN_VALUE = dis.opmap['RETURN_VALUE'] +if RESUME is None: + YIELD_VALUE = dis.opmap['YIELD_VALUE'] + YIELD_FROM = dis.opmap['YIELD_FROM'] + YIELD_FROM_OFFSET = 0 if env.PYPY else 2 + +# When running meta-coverage, this file can try to trace itself, which confuses +# everything. Don't trace ourselves. + +THIS_FILE = __file__.rstrip("co") + +class PyTracer: + """Python implementation of the raw data tracer.""" + + # Because of poor implementations of trace-function-manipulating tools, + # the Python trace function must be kept very simple. In particular, there + # must be only one function ever set as the trace function, both through + # sys.settrace, and as the return value from the trace function. Put + # another way, the trace function must always return itself. It cannot + # swap in other functions, or return None to avoid tracing a particular + # frame. + # + # The trace manipulator that introduced this restriction is DecoratorTools, + # which sets a trace function, and then later restores the pre-existing one + # by calling sys.settrace with a function it found in the current frame. + # + # Systems that use DecoratorTools (or similar trace manipulations) must use + # PyTracer to get accurate results. The command-line --timid argument is + # used to force the use of this tracer. + + def __init__(self): + # Attributes set from the collector: + self.data = None + self.trace_arcs = False + self.should_trace = None + self.should_trace_cache = None + self.should_start_context = None + self.warn = None + # The threading module to use, if any. + self.threading = None + + self.cur_file_data = None + self.last_line = 0 # int, but uninitialized. + self.cur_file_name = None + self.context = None + self.started_context = False + + self.data_stack = [] + self.thread = None + self.stopped = False + self._activity = False + + self.in_atexit = False + # On exit, self.in_atexit = True + atexit.register(setattr, self, 'in_atexit', True) + + # Cache a bound method on the instance, so that we don't have to + # re-create a bound method object all the time. + self._cached_bound_method_trace = self._trace + + def __repr__(self): + return "".format( + id(self), + sum(len(v) for v in self.data.values()), + len(self.data), + ) + + def log(self, marker, *args): + """For hard-core logging of what this tracer is doing.""" + with open("/tmp/debug_trace.txt", "a") as f: + f.write("{} {}[{}]".format( + marker, + id(self), + len(self.data_stack), + )) + if 0: # if you want thread ids.. + f.write(".{:x}.{:x}".format( + self.thread.ident, + self.threading.current_thread().ident, + )) + f.write(" {}".format(" ".join(map(str, args)))) + if 0: # if you want callers.. + f.write(" | ") + stack = " / ".join( + (fname or "???").rpartition("/")[-1] + for _, fname, _, _ in self.data_stack + ) + f.write(stack) + f.write("\n") + + def _trace(self, frame, event, arg_unused): + """The trace function passed to sys.settrace.""" + + if THIS_FILE in frame.f_code.co_filename: + return None + + #self.log(":", frame.f_code.co_filename, frame.f_lineno, frame.f_code.co_name + "()", event) + + if (self.stopped and sys.gettrace() == self._cached_bound_method_trace): # pylint: disable=comparison-with-callable + # The PyTrace.stop() method has been called, possibly by another + # thread, let's deactivate ourselves now. + if 0: + self.log("---\nX", frame.f_code.co_filename, frame.f_lineno) + f = frame + while f: + self.log(">", f.f_code.co_filename, f.f_lineno, f.f_code.co_name, f.f_trace) + f = f.f_back + sys.settrace(None) + self.cur_file_data, self.cur_file_name, self.last_line, self.started_context = ( + self.data_stack.pop() + ) + return None + + # if event != 'call' and frame.f_code.co_filename != self.cur_file_name: + # self.log("---\n*", frame.f_code.co_filename, self.cur_file_name, frame.f_lineno) + + if event == 'call': + # Should we start a new context? + if self.should_start_context and self.context is None: + context_maybe = self.should_start_context(frame) + if context_maybe is not None: + self.context = context_maybe + started_context = True + self.switch_context(self.context) + else: + started_context = False + else: + started_context = False + self.started_context = started_context + + # Entering a new frame. Decide if we should trace in this file. + self._activity = True + self.data_stack.append( + ( + self.cur_file_data, + self.cur_file_name, + self.last_line, + started_context, + ) + ) + + # Improve tracing performance: when calling a function, both caller + # and callee are often within the same file. if that's the case, we + # don't have to re-check whether to trace the corresponding + # function (which is a little bit espensive since it involves + # dictionary lookups). This optimization is only correct if we + # didn't start a context. + filename = frame.f_code.co_filename + if filename != self.cur_file_name or started_context: + self.cur_file_name = filename + disp = self.should_trace_cache.get(filename) + if disp is None: + disp = self.should_trace(filename, frame) + self.should_trace_cache[filename] = disp + + self.cur_file_data = None + if disp.trace: + tracename = disp.source_filename + if tracename not in self.data: + self.data[tracename] = set() + self.cur_file_data = self.data[tracename] + else: + frame.f_trace_lines = False + elif not self.cur_file_data: + frame.f_trace_lines = False + + # The call event is really a "start frame" event, and happens for + # function calls and re-entering generators. The f_lasti field is + # -1 for calls, and a real offset for generators. Use <0 as the + # line number for calls, and the real line number for generators. + if RESUME is not None: + # The current opcode is guaranteed to be RESUME. The argument + # determines what kind of resume it is. + oparg = frame.f_code.co_code[frame.f_lasti + 1] + real_call = (oparg == 0) + else: + real_call = (getattr(frame, 'f_lasti', -1) < 0) + if real_call: + self.last_line = -frame.f_code.co_firstlineno + else: + self.last_line = frame.f_lineno + + elif event == 'line': + # Record an executed line. + if self.cur_file_data is not None: + lineno = frame.f_lineno + + if self.trace_arcs: + self.cur_file_data.add((self.last_line, lineno)) + else: + self.cur_file_data.add(lineno) + self.last_line = lineno + + elif event == 'return': + if self.trace_arcs and self.cur_file_data: + # Record an arc leaving the function, but beware that a + # "return" event might just mean yielding from a generator. + code = frame.f_code.co_code + lasti = frame.f_lasti + if RESUME is not None: + if len(code) == lasti + 2: + # A return from the end of a code object is a real return. + real_return = True + else: + # it's a real return. + real_return = (code[lasti + 2] != RESUME) + else: + if code[lasti] == RETURN_VALUE: + real_return = True + elif code[lasti] == YIELD_VALUE: + real_return = False + elif len(code) <= lasti + YIELD_FROM_OFFSET: + real_return = True + elif code[lasti + YIELD_FROM_OFFSET] == YIELD_FROM: + real_return = False + else: + real_return = True + if real_return: + first = frame.f_code.co_firstlineno + self.cur_file_data.add((self.last_line, -first)) + + # Leaving this function, pop the filename stack. + self.cur_file_data, self.cur_file_name, self.last_line, self.started_context = ( + self.data_stack.pop() + ) + # Leaving a context? + if self.started_context: + self.context = None + self.switch_context(None) + return self._cached_bound_method_trace + + def start(self): + """Start this Tracer. + + Return a Python function suitable for use with sys.settrace(). + + """ + self.stopped = False + if self.threading: + if self.thread is None: + self.thread = self.threading.current_thread() + else: + if self.thread.ident != self.threading.current_thread().ident: + # Re-starting from a different thread!? Don't set the trace + # function, but we are marked as running again, so maybe it + # will be ok? + #self.log("~", "starting on different threads") + return self._cached_bound_method_trace + + sys.settrace(self._cached_bound_method_trace) + return self._cached_bound_method_trace + + def stop(self): + """Stop this Tracer.""" + # Get the active tracer callback before setting the stop flag to be + # able to detect if the tracer was changed prior to stopping it. + tf = sys.gettrace() + + # Set the stop flag. The actual call to sys.settrace(None) will happen + # in the self._trace callback itself to make sure to call it from the + # right thread. + self.stopped = True + + if self.threading and self.thread.ident != self.threading.current_thread().ident: + # Called on a different thread than started us: we can't unhook + # ourselves, but we've set the flag that we should stop, so we + # won't do any more tracing. + #self.log("~", "stopping on different threads") + return + + if self.warn: + # PyPy clears the trace function before running atexit functions, + # so don't warn if we are in atexit on PyPy and the trace function + # has changed to None. + dont_warn = (env.PYPY and env.PYPYVERSION >= (5, 4) and self.in_atexit and tf is None) + if (not dont_warn) and tf != self._cached_bound_method_trace: # pylint: disable=comparison-with-callable + self.warn( + "Trace function changed, data is likely wrong: " + + f"{tf!r} != {self._cached_bound_method_trace!r}", + slug="trace-changed", + ) + + def activity(self): + """Has there been any activity?""" + return self._activity + + def reset_activity(self): + """Reset the activity() flag.""" + self._activity = False + + def get_stats(self): + """Return a dictionary of statistics, or None.""" + return None diff --git a/utils/python-venv/Lib/site-packages/coverage/report.py b/utils/python-venv/Lib/site-packages/coverage/report.py new file mode 100644 index 0000000..6382eb5 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/report.py @@ -0,0 +1,91 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Reporter foundation for coverage.py.""" + +import sys + +from coverage.exceptions import CoverageException, NoDataError, NotPython +from coverage.files import prep_patterns, FnmatchMatcher +from coverage.misc import ensure_dir_for_file, file_be_gone + + +def render_report(output_path, reporter, morfs, msgfn): + """Run a one-file report generator, managing the output file. + + This function ensures the output file is ready to be written to. Then writes + the report to it. Then closes the file and cleans up. + + """ + file_to_close = None + delete_file = False + + if output_path == "-": + outfile = sys.stdout + else: + # Ensure that the output directory is created; done here + # because this report pre-opens the output file. + # HTMLReport does this using the Report plumbing because + # its task is more complex, being multiple files. + ensure_dir_for_file(output_path) + outfile = open(output_path, "w", encoding="utf-8") + file_to_close = outfile + + try: + return reporter.report(morfs, outfile=outfile) + except CoverageException: + delete_file = True + raise + finally: + if file_to_close: + file_to_close.close() + if delete_file: + file_be_gone(output_path) # pragma: part covered (doesn't return) + else: + msgfn(f"Wrote {reporter.report_type} to {output_path}") + + +def get_analysis_to_report(coverage, morfs): + """Get the files to report on. + + For each morf in `morfs`, if it should be reported on (based on the omit + and include configuration options), yield a pair, the `FileReporter` and + `Analysis` for the morf. + + """ + file_reporters = coverage._get_file_reporters(morfs) + config = coverage.config + + if config.report_include: + matcher = FnmatchMatcher(prep_patterns(config.report_include), "report_include") + file_reporters = [fr for fr in file_reporters if matcher.match(fr.filename)] + + if config.report_omit: + matcher = FnmatchMatcher(prep_patterns(config.report_omit), "report_omit") + file_reporters = [fr for fr in file_reporters if not matcher.match(fr.filename)] + + if not file_reporters: + raise NoDataError("No data to report.") + + for fr in sorted(file_reporters): + try: + analysis = coverage._analyze(fr) + except NotPython: + # Only report errors for .py files, and only if we didn't + # explicitly suppress those errors. + # NotPython is only raised by PythonFileReporter, which has a + # should_be_python() method. + if fr.should_be_python(): + if config.ignore_errors: + msg = f"Couldn't parse Python file '{fr.filename}'" + coverage._warn(msg, slug="couldnt-parse") + else: + raise + except Exception as exc: + if config.ignore_errors: + msg = f"Couldn't parse '{fr.filename}': {exc}".rstrip() + coverage._warn(msg, slug="couldnt-parse") + else: + raise + else: + yield (fr, analysis) diff --git a/utils/python-venv/Lib/site-packages/coverage/results.py b/utils/python-venv/Lib/site-packages/coverage/results.py new file mode 100644 index 0000000..79439fd --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/results.py @@ -0,0 +1,361 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Results of coverage measurement.""" + +import collections + +from coverage.debug import SimpleReprMixin +from coverage.exceptions import ConfigError +from coverage.misc import contract, nice_pair + + +class Analysis: + """The results of analyzing a FileReporter.""" + + def __init__(self, data, precision, file_reporter, file_mapper): + self.data = data + self.file_reporter = file_reporter + self.filename = file_mapper(self.file_reporter.filename) + self.statements = self.file_reporter.lines() + self.excluded = self.file_reporter.excluded_lines() + + # Identify missing statements. + executed = self.data.lines(self.filename) or [] + executed = self.file_reporter.translate_lines(executed) + self.executed = executed + self.missing = self.statements - self.executed + + if self.data.has_arcs(): + self._arc_possibilities = sorted(self.file_reporter.arcs()) + self.exit_counts = self.file_reporter.exit_counts() + self.no_branch = self.file_reporter.no_branch_lines() + n_branches = self._total_branches() + mba = self.missing_branch_arcs() + n_partial_branches = sum(len(v) for k,v in mba.items() if k not in self.missing) + n_missing_branches = sum(len(v) for k,v in mba.items()) + else: + self._arc_possibilities = [] + self.exit_counts = {} + self.no_branch = set() + n_branches = n_partial_branches = n_missing_branches = 0 + + self.numbers = Numbers( + precision=precision, + n_files=1, + n_statements=len(self.statements), + n_excluded=len(self.excluded), + n_missing=len(self.missing), + n_branches=n_branches, + n_partial_branches=n_partial_branches, + n_missing_branches=n_missing_branches, + ) + + def missing_formatted(self, branches=False): + """The missing line numbers, formatted nicely. + + Returns a string like "1-2, 5-11, 13-14". + + If `branches` is true, includes the missing branch arcs also. + + """ + if branches and self.has_arcs(): + arcs = self.missing_branch_arcs().items() + else: + arcs = None + + return format_lines(self.statements, self.missing, arcs=arcs) + + def has_arcs(self): + """Were arcs measured in this result?""" + return self.data.has_arcs() + + @contract(returns='list(tuple(int, int))') + def arc_possibilities(self): + """Returns a sorted list of the arcs in the code.""" + return self._arc_possibilities + + @contract(returns='list(tuple(int, int))') + def arcs_executed(self): + """Returns a sorted list of the arcs actually executed in the code.""" + executed = self.data.arcs(self.filename) or [] + executed = self.file_reporter.translate_arcs(executed) + return sorted(executed) + + @contract(returns='list(tuple(int, int))') + def arcs_missing(self): + """Returns a sorted list of the unexecuted arcs in the code.""" + possible = self.arc_possibilities() + executed = self.arcs_executed() + missing = ( + p for p in possible + if p not in executed + and p[0] not in self.no_branch + and p[1] not in self.excluded + ) + return sorted(missing) + + @contract(returns='list(tuple(int, int))') + def arcs_unpredicted(self): + """Returns a sorted list of the executed arcs missing from the code.""" + possible = self.arc_possibilities() + executed = self.arcs_executed() + # Exclude arcs here which connect a line to itself. They can occur + # in executed data in some cases. This is where they can cause + # trouble, and here is where it's the least burden to remove them. + # Also, generators can somehow cause arcs from "enter" to "exit", so + # make sure we have at least one positive value. + unpredicted = ( + e for e in executed + if e not in possible + and e[0] != e[1] + and (e[0] > 0 or e[1] > 0) + ) + return sorted(unpredicted) + + def _branch_lines(self): + """Returns a list of line numbers that have more than one exit.""" + return [l1 for l1,count in self.exit_counts.items() if count > 1] + + def _total_branches(self): + """How many total branches are there?""" + return sum(count for count in self.exit_counts.values() if count > 1) + + @contract(returns='dict(int: list(int))') + def missing_branch_arcs(self): + """Return arcs that weren't executed from branch lines. + + Returns {l1:[l2a,l2b,...], ...} + + """ + missing = self.arcs_missing() + branch_lines = set(self._branch_lines()) + mba = collections.defaultdict(list) + for l1, l2 in missing: + if l1 in branch_lines: + mba[l1].append(l2) + return mba + + @contract(returns='dict(int: list(int))') + def executed_branch_arcs(self): + """Return arcs that were executed from branch lines. + + Returns {l1:[l2a,l2b,...], ...} + + """ + executed = self.arcs_executed() + branch_lines = set(self._branch_lines()) + eba = collections.defaultdict(list) + for l1, l2 in executed: + if l1 in branch_lines: + eba[l1].append(l2) + return eba + + @contract(returns='dict(int: tuple(int, int))') + def branch_stats(self): + """Get stats about branches. + + Returns a dict mapping line numbers to a tuple: + (total_exits, taken_exits). + """ + + missing_arcs = self.missing_branch_arcs() + stats = {} + for lnum in self._branch_lines(): + exits = self.exit_counts[lnum] + missing = len(missing_arcs[lnum]) + stats[lnum] = (exits, exits - missing) + return stats + + +class Numbers(SimpleReprMixin): + """The numerical results of measuring coverage. + + This holds the basic statistics from `Analysis`, and is used to roll + up statistics across files. + + """ + + def __init__(self, + precision=0, + n_files=0, n_statements=0, n_excluded=0, n_missing=0, + n_branches=0, n_partial_branches=0, n_missing_branches=0 + ): + assert 0 <= precision < 10 + self._precision = precision + self._near0 = 1.0 / 10**precision + self._near100 = 100.0 - self._near0 + self.n_files = n_files + self.n_statements = n_statements + self.n_excluded = n_excluded + self.n_missing = n_missing + self.n_branches = n_branches + self.n_partial_branches = n_partial_branches + self.n_missing_branches = n_missing_branches + + def init_args(self): + """Return a list for __init__(*args) to recreate this object.""" + return [ + self._precision, + self.n_files, self.n_statements, self.n_excluded, self.n_missing, + self.n_branches, self.n_partial_branches, self.n_missing_branches, + ] + + @property + def n_executed(self): + """Returns the number of executed statements.""" + return self.n_statements - self.n_missing + + @property + def n_executed_branches(self): + """Returns the number of executed branches.""" + return self.n_branches - self.n_missing_branches + + @property + def pc_covered(self): + """Returns a single percentage value for coverage.""" + if self.n_statements > 0: + numerator, denominator = self.ratio_covered + pc_cov = (100.0 * numerator) / denominator + else: + pc_cov = 100.0 + return pc_cov + + @property + def pc_covered_str(self): + """Returns the percent covered, as a string, without a percent sign. + + Note that "0" is only returned when the value is truly zero, and "100" + is only returned when the value is truly 100. Rounding can never + result in either "0" or "100". + + """ + return self.display_covered(self.pc_covered) + + def display_covered(self, pc): + """Return a displayable total percentage, as a string. + + Note that "0" is only returned when the value is truly zero, and "100" + is only returned when the value is truly 100. Rounding can never + result in either "0" or "100". + + """ + if 0 < pc < self._near0: + pc = self._near0 + elif self._near100 < pc < 100: + pc = self._near100 + else: + pc = round(pc, self._precision) + return "%.*f" % (self._precision, pc) + + def pc_str_width(self): + """How many characters wide can pc_covered_str be?""" + width = 3 # "100" + if self._precision > 0: + width += 1 + self._precision + return width + + @property + def ratio_covered(self): + """Return a numerator and denominator for the coverage ratio.""" + numerator = self.n_executed + self.n_executed_branches + denominator = self.n_statements + self.n_branches + return numerator, denominator + + def __add__(self, other): + nums = Numbers(precision=self._precision) + nums.n_files = self.n_files + other.n_files + nums.n_statements = self.n_statements + other.n_statements + nums.n_excluded = self.n_excluded + other.n_excluded + nums.n_missing = self.n_missing + other.n_missing + nums.n_branches = self.n_branches + other.n_branches + nums.n_partial_branches = ( + self.n_partial_branches + other.n_partial_branches + ) + nums.n_missing_branches = ( + self.n_missing_branches + other.n_missing_branches + ) + return nums + + def __radd__(self, other): + # Implementing 0+Numbers allows us to sum() a list of Numbers. + assert other == 0 # we only ever call it this way. + return self + + +def _line_ranges(statements, lines): + """Produce a list of ranges for `format_lines`.""" + statements = sorted(statements) + lines = sorted(lines) + + pairs = [] + start = None + lidx = 0 + for stmt in statements: + if lidx >= len(lines): + break + if stmt == lines[lidx]: + lidx += 1 + if not start: + start = stmt + end = stmt + elif start: + pairs.append((start, end)) + start = None + if start: + pairs.append((start, end)) + return pairs + + +def format_lines(statements, lines, arcs=None): + """Nicely format a list of line numbers. + + Format a list of line numbers for printing by coalescing groups of lines as + long as the lines represent consecutive statements. This will coalesce + even if there are gaps between statements. + + For example, if `statements` is [1,2,3,4,5,10,11,12,13,14] and + `lines` is [1,2,5,10,11,13,14] then the result will be "1-2, 5-11, 13-14". + + Both `lines` and `statements` can be any iterable. All of the elements of + `lines` must be in `statements`, and all of the values must be positive + integers. + + If `arcs` is provided, they are (start,[end,end,end]) pairs that will be + included in the output as long as start isn't in `lines`. + + """ + line_items = [(pair[0], nice_pair(pair)) for pair in _line_ranges(statements, lines)] + if arcs: + line_exits = sorted(arcs) + for line, exits in line_exits: + for ex in sorted(exits): + if line not in lines and ex not in lines: + dest = (ex if ex > 0 else "exit") + line_items.append((line, f"{line}->{dest}")) + + ret = ', '.join(t[-1] for t in sorted(line_items)) + return ret + + +@contract(total='number', fail_under='number', precision=int, returns=bool) +def should_fail_under(total, fail_under, precision): + """Determine if a total should fail due to fail-under. + + `total` is a float, the coverage measurement total. `fail_under` is the + fail_under setting to compare with. `precision` is the number of digits + to consider after the decimal point. + + Returns True if the total should fail. + + """ + # We can never achieve higher than 100% coverage, or less than zero. + if not (0 <= fail_under <= 100.0): + msg = f"fail_under={fail_under} is invalid. Must be between 0 and 100." + raise ConfigError(msg) + + # Special case for fail_under=100, it must really be 100. + if fail_under == 100.0 and total != 100.0: + return True + + return round(total, precision) < fail_under diff --git a/utils/python-venv/Lib/site-packages/coverage/sqldata.py b/utils/python-venv/Lib/site-packages/coverage/sqldata.py new file mode 100644 index 0000000..5d62b15 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/sqldata.py @@ -0,0 +1,1182 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""SQLite coverage data.""" + +import collections +import datetime +import functools +import glob +import itertools +import os +import random +import re +import socket +import sqlite3 +import sys +import textwrap +import threading +import zlib + +from coverage.debug import NoDebugging, SimpleReprMixin, clipped_repr +from coverage.exceptions import CoverageException, DataError +from coverage.files import PathAliases +from coverage.misc import contract, file_be_gone, isolate_module +from coverage.numbits import numbits_to_nums, numbits_union, nums_to_numbits +from coverage.version import __version__ + +os = isolate_module(os) + +# If you change the schema, increment the SCHEMA_VERSION, and update the +# docs in docs/dbschema.rst by running "make cogdoc". + +SCHEMA_VERSION = 7 + +# Schema versions: +# 1: Released in 5.0a2 +# 2: Added contexts in 5.0a3. +# 3: Replaced line table with line_map table. +# 4: Changed line_map.bitmap to line_map.numbits. +# 5: Added foreign key declarations. +# 6: Key-value in meta. +# 7: line_map -> line_bits + +SCHEMA = """\ +CREATE TABLE coverage_schema ( + -- One row, to record the version of the schema in this db. + version integer +); + +CREATE TABLE meta ( + -- Key-value pairs, to record metadata about the data + key text, + value text, + unique (key) + -- Keys: + -- 'has_arcs' boolean -- Is this data recording branches? + -- 'sys_argv' text -- The coverage command line that recorded the data. + -- 'version' text -- The version of coverage.py that made the file. + -- 'when' text -- Datetime when the file was created. +); + +CREATE TABLE file ( + -- A row per file measured. + id integer primary key, + path text, + unique (path) +); + +CREATE TABLE context ( + -- A row per context measured. + id integer primary key, + context text, + unique (context) +); + +CREATE TABLE line_bits ( + -- If recording lines, a row per context per file executed. + -- All of the line numbers for that file/context are in one numbits. + file_id integer, -- foreign key to `file`. + context_id integer, -- foreign key to `context`. + numbits blob, -- see the numbits functions in coverage.numbits + foreign key (file_id) references file (id), + foreign key (context_id) references context (id), + unique (file_id, context_id) +); + +CREATE TABLE arc ( + -- If recording branches, a row per context per from/to line transition executed. + file_id integer, -- foreign key to `file`. + context_id integer, -- foreign key to `context`. + fromno integer, -- line number jumped from. + tono integer, -- line number jumped to. + foreign key (file_id) references file (id), + foreign key (context_id) references context (id), + unique (file_id, context_id, fromno, tono) +); + +CREATE TABLE tracer ( + -- A row per file indicating the tracer used for that file. + file_id integer primary key, + tracer text, + foreign key (file_id) references file (id) +); +""" + +class CoverageData(SimpleReprMixin): + """Manages collected coverage data, including file storage. + + This class is the public supported API to the data that coverage.py + collects during program execution. It includes information about what code + was executed. It does not include information from the analysis phase, to + determine what lines could have been executed, or what lines were not + executed. + + .. note:: + + The data file is currently a SQLite database file, with a + :ref:`documented schema `. The schema is subject to change + though, so be careful about querying it directly. Use this API if you + can to isolate yourself from changes. + + There are a number of kinds of data that can be collected: + + * **lines**: the line numbers of source lines that were executed. + These are always available. + + * **arcs**: pairs of source and destination line numbers for transitions + between source lines. These are only available if branch coverage was + used. + + * **file tracer names**: the module names of the file tracer plugins that + handled each file in the data. + + Lines, arcs, and file tracer names are stored for each source file. File + names in this API are case-sensitive, even on platforms with + case-insensitive file systems. + + A data file either stores lines, or arcs, but not both. + + A data file is associated with the data when the :class:`CoverageData` + is created, using the parameters `basename`, `suffix`, and `no_disk`. The + base name can be queried with :meth:`base_filename`, and the actual file + name being used is available from :meth:`data_filename`. + + To read an existing coverage.py data file, use :meth:`read`. You can then + access the line, arc, or file tracer data with :meth:`lines`, :meth:`arcs`, + or :meth:`file_tracer`. + + The :meth:`has_arcs` method indicates whether arc data is available. You + can get a set of the files in the data with :meth:`measured_files`. As + with most Python containers, you can determine if there is any data at all + by using this object as a boolean value. + + The contexts for each line in a file can be read with + :meth:`contexts_by_lineno`. + + To limit querying to certain contexts, use :meth:`set_query_context` or + :meth:`set_query_contexts`. These will narrow the focus of subsequent + :meth:`lines`, :meth:`arcs`, and :meth:`contexts_by_lineno` calls. The set + of all measured context names can be retrieved with + :meth:`measured_contexts`. + + Most data files will be created by coverage.py itself, but you can use + methods here to create data files if you like. The :meth:`add_lines`, + :meth:`add_arcs`, and :meth:`add_file_tracers` methods add data, in ways + that are convenient for coverage.py. + + To record data for contexts, use :meth:`set_context` to set a context to + be used for subsequent :meth:`add_lines` and :meth:`add_arcs` calls. + + To add a source file without any measured data, use :meth:`touch_file`, + or :meth:`touch_files` for a list of such files. + + Write the data to its file with :meth:`write`. + + You can clear the data in memory with :meth:`erase`. Two data collections + can be combined by using :meth:`update` on one :class:`CoverageData`, + passing it the other. + + Data in a :class:`CoverageData` can be serialized and deserialized with + :meth:`dumps` and :meth:`loads`. + + The methods used during the coverage.py collection phase + (:meth:`add_lines`, :meth:`add_arcs`, :meth:`set_context`, and + :meth:`add_file_tracers`) are thread-safe. Other methods may not be. + + """ + + def __init__(self, basename=None, suffix=None, no_disk=False, warn=None, debug=None): + """Create a :class:`CoverageData` object to hold coverage-measured data. + + Arguments: + basename (str): the base name of the data file, defaulting to + ".coverage". This can be a path to a file in another directory. + suffix (str or bool): has the same meaning as the `data_suffix` + argument to :class:`coverage.Coverage`. + no_disk (bool): if True, keep all data in memory, and don't + write any disk file. + warn: a warning callback function, accepting a warning message + argument. + debug: a `DebugControl` object (optional) + + """ + self._no_disk = no_disk + self._basename = os.path.abspath(basename or ".coverage") + self._suffix = suffix + self._warn = warn + self._debug = debug or NoDebugging() + + self._choose_filename() + self._file_map = {} + # Maps thread ids to SqliteDb objects. + self._dbs = {} + self._pid = os.getpid() + # Synchronize the operations used during collection. + self._lock = threading.RLock() + + # Are we in sync with the data file? + self._have_used = False + + self._has_lines = False + self._has_arcs = False + + self._current_context = None + self._current_context_id = None + self._query_context_ids = None + + def _locked(method): # pylint: disable=no-self-argument + """A decorator for methods that should hold self._lock.""" + @functools.wraps(method) + def _wrapped(self, *args, **kwargs): + if self._debug.should("lock"): + self._debug.write(f"Locking {self._lock!r} for {method.__name__}") + with self._lock: + if self._debug.should("lock"): + self._debug.write(f"Locked {self._lock!r} for {method.__name__}") + # pylint: disable=not-callable + return method(self, *args, **kwargs) + return _wrapped + + def _choose_filename(self): + """Set self._filename based on inited attributes.""" + if self._no_disk: + self._filename = ":memory:" + else: + self._filename = self._basename + suffix = filename_suffix(self._suffix) + if suffix: + self._filename += "." + suffix + + def _reset(self): + """Reset our attributes.""" + if not self._no_disk: + for db in self._dbs.values(): + db.close() + self._dbs = {} + self._file_map = {} + self._have_used = False + self._current_context_id = None + + def _open_db(self): + """Open an existing db file, and read its metadata.""" + if self._debug.should("dataio"): + self._debug.write(f"Opening data file {self._filename!r}") + self._dbs[threading.get_ident()] = SqliteDb(self._filename, self._debug) + self._read_db() + + def _read_db(self): + """Read the metadata from a database so that we are ready to use it.""" + with self._dbs[threading.get_ident()] as db: + try: + schema_version, = db.execute_one("select version from coverage_schema") + except Exception as exc: + if "no such table: coverage_schema" in str(exc): + self._init_db(db) + else: + raise DataError( + "Data file {!r} doesn't seem to be a coverage data file: {}".format( + self._filename, exc + ) + ) from exc + else: + if schema_version != SCHEMA_VERSION: + raise DataError( + "Couldn't use data file {!r}: wrong schema: {} instead of {}".format( + self._filename, schema_version, SCHEMA_VERSION + ) + ) + + for row in db.execute("select value from meta where key = 'has_arcs'"): + self._has_arcs = bool(int(row[0])) + self._has_lines = not self._has_arcs + + for file_id, path in db.execute("select id, path from file"): + self._file_map[path] = file_id + + def _init_db(self, db): + """Write the initial contents of the database.""" + if self._debug.should("dataio"): + self._debug.write(f"Initing data file {self._filename!r}") + db.executescript(SCHEMA) + db.execute("insert into coverage_schema (version) values (?)", (SCHEMA_VERSION,)) + db.executemany( + "insert or ignore into meta (key, value) values (?, ?)", + [ + ("sys_argv", str(getattr(sys, "argv", None))), + ("version", __version__), + ("when", datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")), + ] + ) + + def _connect(self): + """Get the SqliteDb object to use.""" + if threading.get_ident() not in self._dbs: + self._open_db() + return self._dbs[threading.get_ident()] + + def __bool__(self): + if (threading.get_ident() not in self._dbs and not os.path.exists(self._filename)): + return False + try: + with self._connect() as con: + rows = con.execute("select * from file limit 1") + return bool(list(rows)) + except CoverageException: + return False + + @contract(returns="bytes") + def dumps(self): + """Serialize the current data to a byte string. + + The format of the serialized data is not documented. It is only + suitable for use with :meth:`loads` in the same version of + coverage.py. + + Note that this serialization is not what gets stored in coverage data + files. This method is meant to produce bytes that can be transmitted + elsewhere and then deserialized with :meth:`loads`. + + Returns: + A byte string of serialized data. + + .. versionadded:: 5.0 + + """ + if self._debug.should("dataio"): + self._debug.write(f"Dumping data from data file {self._filename!r}") + with self._connect() as con: + script = con.dump() + return b"z" + zlib.compress(script.encode("utf-8")) + + @contract(data="bytes") + def loads(self, data): + """Deserialize data from :meth:`dumps`. + + Use with a newly-created empty :class:`CoverageData` object. It's + undefined what happens if the object already has data in it. + + Note that this is not for reading data from a coverage data file. It + is only for use on data you produced with :meth:`dumps`. + + Arguments: + data: A byte string of serialized data produced by :meth:`dumps`. + + .. versionadded:: 5.0 + + """ + if self._debug.should("dataio"): + self._debug.write(f"Loading data into data file {self._filename!r}") + if data[:1] != b"z": + raise DataError( + f"Unrecognized serialization: {data[:40]!r} (head of {len(data)} bytes)" + ) + script = zlib.decompress(data[1:]).decode("utf-8") + self._dbs[threading.get_ident()] = db = SqliteDb(self._filename, self._debug) + with db: + db.executescript(script) + self._read_db() + self._have_used = True + + def _file_id(self, filename, add=False): + """Get the file id for `filename`. + + If filename is not in the database yet, add it if `add` is True. + If `add` is not True, return None. + """ + if filename not in self._file_map: + if add: + with self._connect() as con: + self._file_map[filename] = con.execute_for_rowid( + "insert or replace into file (path) values (?)", + (filename,) + ) + return self._file_map.get(filename) + + def _context_id(self, context): + """Get the id for a context.""" + assert context is not None + self._start_using() + with self._connect() as con: + row = con.execute_one("select id from context where context = ?", (context,)) + if row is not None: + return row[0] + else: + return None + + @_locked + def set_context(self, context): + """Set the current context for future :meth:`add_lines` etc. + + `context` is a str, the name of the context to use for the next data + additions. The context persists until the next :meth:`set_context`. + + .. versionadded:: 5.0 + + """ + if self._debug.should("dataop"): + self._debug.write(f"Setting context: {context!r}") + self._current_context = context + self._current_context_id = None + + def _set_context_id(self): + """Use the _current_context to set _current_context_id.""" + context = self._current_context or "" + context_id = self._context_id(context) + if context_id is not None: + self._current_context_id = context_id + else: + with self._connect() as con: + self._current_context_id = con.execute_for_rowid( + "insert into context (context) values (?)", + (context,) + ) + + def base_filename(self): + """The base filename for storing data. + + .. versionadded:: 5.0 + + """ + return self._basename + + def data_filename(self): + """Where is the data stored? + + .. versionadded:: 5.0 + + """ + return self._filename + + @_locked + def add_lines(self, line_data): + """Add measured line data. + + `line_data` is a dictionary mapping file names to iterables of ints:: + + { filename: { line1, line2, ... }, ...} + + """ + if self._debug.should("dataop"): + self._debug.write("Adding lines: %d files, %d lines total" % ( + len(line_data), sum(len(lines) for lines in line_data.values()) + )) + self._start_using() + self._choose_lines_or_arcs(lines=True) + if not line_data: + return + with self._connect() as con: + self._set_context_id() + for filename, linenos in line_data.items(): + linemap = nums_to_numbits(linenos) + file_id = self._file_id(filename, add=True) + query = "select numbits from line_bits where file_id = ? and context_id = ?" + existing = list(con.execute(query, (file_id, self._current_context_id))) + if existing: + linemap = numbits_union(linemap, existing[0][0]) + + con.execute( + "insert or replace into line_bits " + + " (file_id, context_id, numbits) values (?, ?, ?)", + (file_id, self._current_context_id, linemap), + ) + + @_locked + def add_arcs(self, arc_data): + """Add measured arc data. + + `arc_data` is a dictionary mapping file names to iterables of pairs of + ints:: + + { filename: { (l1,l2), (l1,l2), ... }, ...} + + """ + if self._debug.should("dataop"): + self._debug.write("Adding arcs: %d files, %d arcs total" % ( + len(arc_data), sum(len(arcs) for arcs in arc_data.values()) + )) + self._start_using() + self._choose_lines_or_arcs(arcs=True) + if not arc_data: + return + with self._connect() as con: + self._set_context_id() + for filename, arcs in arc_data.items(): + file_id = self._file_id(filename, add=True) + data = [(file_id, self._current_context_id, fromno, tono) for fromno, tono in arcs] + con.executemany( + "insert or ignore into arc " + + "(file_id, context_id, fromno, tono) values (?, ?, ?, ?)", + data, + ) + + def _choose_lines_or_arcs(self, lines=False, arcs=False): + """Force the data file to choose between lines and arcs.""" + assert lines or arcs + assert not (lines and arcs) + if lines and self._has_arcs: + if self._debug.should("dataop"): + self._debug.write("Error: Can't add line measurements to existing branch data") + raise DataError("Can't add line measurements to existing branch data") + if arcs and self._has_lines: + if self._debug.should("dataop"): + self._debug.write("Error: Can't add branch measurements to existing line data") + raise DataError("Can't add branch measurements to existing line data") + if not self._has_arcs and not self._has_lines: + self._has_lines = lines + self._has_arcs = arcs + with self._connect() as con: + con.execute( + "insert or ignore into meta (key, value) values (?, ?)", + ("has_arcs", str(int(arcs))) + ) + + @_locked + def add_file_tracers(self, file_tracers): + """Add per-file plugin information. + + `file_tracers` is { filename: plugin_name, ... } + + """ + if self._debug.should("dataop"): + self._debug.write("Adding file tracers: %d files" % (len(file_tracers),)) + if not file_tracers: + return + self._start_using() + with self._connect() as con: + for filename, plugin_name in file_tracers.items(): + file_id = self._file_id(filename) + if file_id is None: + raise DataError( + f"Can't add file tracer data for unmeasured file '{filename}'" + ) + + existing_plugin = self.file_tracer(filename) + if existing_plugin: + if existing_plugin != plugin_name: + raise DataError( + "Conflicting file tracer name for '{}': {!r} vs {!r}".format( + filename, existing_plugin, plugin_name, + ) + ) + elif plugin_name: + con.execute( + "insert into tracer (file_id, tracer) values (?, ?)", + (file_id, plugin_name) + ) + + def touch_file(self, filename, plugin_name=""): + """Ensure that `filename` appears in the data, empty if needed. + + `plugin_name` is the name of the plugin responsible for this file. It is used + to associate the right filereporter, etc. + """ + self.touch_files([filename], plugin_name) + + def touch_files(self, filenames, plugin_name=""): + """Ensure that `filenames` appear in the data, empty if needed. + + `plugin_name` is the name of the plugin responsible for these files. It is used + to associate the right filereporter, etc. + """ + if self._debug.should("dataop"): + self._debug.write(f"Touching {filenames!r}") + self._start_using() + with self._connect(): # Use this to get one transaction. + if not self._has_arcs and not self._has_lines: + raise DataError("Can't touch files in an empty CoverageData") + + for filename in filenames: + self._file_id(filename, add=True) + if plugin_name: + # Set the tracer for this file + self.add_file_tracers({filename: plugin_name}) + + def update(self, other_data, aliases=None): + """Update this data with data from several other :class:`CoverageData` instances. + + If `aliases` is provided, it's a `PathAliases` object that is used to + re-map paths to match the local machine's. + """ + if self._debug.should("dataop"): + self._debug.write("Updating with data from {!r}".format( + getattr(other_data, "_filename", "???"), + )) + if self._has_lines and other_data._has_arcs: + raise DataError("Can't combine arc data with line data") + if self._has_arcs and other_data._has_lines: + raise DataError("Can't combine line data with arc data") + + aliases = aliases or PathAliases() + + # Force the database we're writing to to exist before we start nesting contexts. + self._start_using() + + # Collector for all arcs, lines and tracers + other_data.read() + with other_data._connect() as con: + # Get files data. + cur = con.execute("select path from file") + files = {path: aliases.map(path) for (path,) in cur} + cur.close() + + # Get contexts data. + cur = con.execute("select context from context") + contexts = [context for (context,) in cur] + cur.close() + + # Get arc data. + cur = con.execute( + "select file.path, context.context, arc.fromno, arc.tono " + + "from arc " + + "inner join file on file.id = arc.file_id " + + "inner join context on context.id = arc.context_id" + ) + arcs = [(files[path], context, fromno, tono) for (path, context, fromno, tono) in cur] + cur.close() + + # Get line data. + cur = con.execute( + "select file.path, context.context, line_bits.numbits " + + "from line_bits " + + "inner join file on file.id = line_bits.file_id " + + "inner join context on context.id = line_bits.context_id" + ) + lines = {(files[path], context): numbits for (path, context, numbits) in cur} + cur.close() + + # Get tracer data. + cur = con.execute( + "select file.path, tracer " + + "from tracer " + + "inner join file on file.id = tracer.file_id" + ) + tracers = {files[path]: tracer for (path, tracer) in cur} + cur.close() + + with self._connect() as con: + con.con.isolation_level = "IMMEDIATE" + + # Get all tracers in the DB. Files not in the tracers are assumed + # to have an empty string tracer. Since Sqlite does not support + # full outer joins, we have to make two queries to fill the + # dictionary. + this_tracers = {path: "" for path, in con.execute("select path from file")} + this_tracers.update({ + aliases.map(path): tracer + for path, tracer in con.execute( + "select file.path, tracer from tracer " + + "inner join file on file.id = tracer.file_id" + ) + }) + + # Create all file and context rows in the DB. + con.executemany( + "insert or ignore into file (path) values (?)", + ((file,) for file in files.values()) + ) + file_ids = { + path: id + for id, path in con.execute("select id, path from file") + } + self._file_map.update(file_ids) + con.executemany( + "insert or ignore into context (context) values (?)", + ((context,) for context in contexts) + ) + context_ids = { + context: id + for id, context in con.execute("select id, context from context") + } + + # Prepare tracers and fail, if a conflict is found. + # tracer_paths is used to ensure consistency over the tracer data + # and tracer_map tracks the tracers to be inserted. + tracer_map = {} + for path in files.values(): + this_tracer = this_tracers.get(path) + other_tracer = tracers.get(path, "") + # If there is no tracer, there is always the None tracer. + if this_tracer is not None and this_tracer != other_tracer: + raise DataError( + "Conflicting file tracer name for '{}': {!r} vs {!r}".format( + path, this_tracer, other_tracer + ) + ) + tracer_map[path] = other_tracer + + # Prepare arc and line rows to be inserted by converting the file + # and context strings with integer ids. Then use the efficient + # `executemany()` to insert all rows at once. + arc_rows = ( + (file_ids[file], context_ids[context], fromno, tono) + for file, context, fromno, tono in arcs + ) + + # Get line data. + cur = con.execute( + "select file.path, context.context, line_bits.numbits " + + "from line_bits " + + "inner join file on file.id = line_bits.file_id " + + "inner join context on context.id = line_bits.context_id" + ) + for path, context, numbits in cur: + key = (aliases.map(path), context) + if key in lines: + numbits = numbits_union(lines[key], numbits) + lines[key] = numbits + cur.close() + + if arcs: + self._choose_lines_or_arcs(arcs=True) + + # Write the combined data. + con.executemany( + "insert or ignore into arc " + + "(file_id, context_id, fromno, tono) values (?, ?, ?, ?)", + arc_rows + ) + + if lines: + self._choose_lines_or_arcs(lines=True) + con.execute("delete from line_bits") + con.executemany( + "insert into line_bits " + + "(file_id, context_id, numbits) values (?, ?, ?)", + [ + (file_ids[file], context_ids[context], numbits) + for (file, context), numbits in lines.items() + ] + ) + con.executemany( + "insert or ignore into tracer (file_id, tracer) values (?, ?)", + ((file_ids[filename], tracer) for filename, tracer in tracer_map.items()) + ) + + if not self._no_disk: + # Update all internal cache data. + self._reset() + self.read() + + def erase(self, parallel=False): + """Erase the data in this object. + + If `parallel` is true, then also deletes data files created from the + basename by parallel-mode. + + """ + self._reset() + if self._no_disk: + return + if self._debug.should("dataio"): + self._debug.write(f"Erasing data file {self._filename!r}") + file_be_gone(self._filename) + if parallel: + data_dir, local = os.path.split(self._filename) + local_abs_path = os.path.join(os.path.abspath(data_dir), local) + pattern = glob.escape(local_abs_path) + ".*" + for filename in glob.glob(pattern): + if self._debug.should("dataio"): + self._debug.write(f"Erasing parallel data file {filename!r}") + file_be_gone(filename) + + def read(self): + """Start using an existing data file.""" + if os.path.exists(self._filename): + with self._connect(): + self._have_used = True + + def write(self): + """Ensure the data is written to the data file.""" + pass + + def _start_using(self): + """Call this before using the database at all.""" + if self._pid != os.getpid(): + # Looks like we forked! Have to start a new data file. + self._reset() + self._choose_filename() + self._pid = os.getpid() + if not self._have_used: + self.erase() + self._have_used = True + + def has_arcs(self): + """Does the database have arcs (True) or lines (False).""" + return bool(self._has_arcs) + + def measured_files(self): + """A set of all files that had been measured.""" + return set(self._file_map) + + def measured_contexts(self): + """A set of all contexts that have been measured. + + .. versionadded:: 5.0 + + """ + self._start_using() + with self._connect() as con: + contexts = {row[0] for row in con.execute("select distinct(context) from context")} + return contexts + + def file_tracer(self, filename): + """Get the plugin name of the file tracer for a file. + + Returns the name of the plugin that handles this file. If the file was + measured, but didn't use a plugin, then "" is returned. If the file + was not measured, then None is returned. + + """ + self._start_using() + with self._connect() as con: + file_id = self._file_id(filename) + if file_id is None: + return None + row = con.execute_one("select tracer from tracer where file_id = ?", (file_id,)) + if row is not None: + return row[0] or "" + return "" # File was measured, but no tracer associated. + + def set_query_context(self, context): + """Set a context for subsequent querying. + + The next :meth:`lines`, :meth:`arcs`, or :meth:`contexts_by_lineno` + calls will be limited to only one context. `context` is a string which + must match a context exactly. If it does not, no exception is raised, + but queries will return no data. + + .. versionadded:: 5.0 + + """ + self._start_using() + with self._connect() as con: + cur = con.execute("select id from context where context = ?", (context,)) + self._query_context_ids = [row[0] for row in cur.fetchall()] + + def set_query_contexts(self, contexts): + """Set a number of contexts for subsequent querying. + + The next :meth:`lines`, :meth:`arcs`, or :meth:`contexts_by_lineno` + calls will be limited to the specified contexts. `contexts` is a list + of Python regular expressions. Contexts will be matched using + :func:`re.search `. Data will be included in query + results if they are part of any of the contexts matched. + + .. versionadded:: 5.0 + + """ + self._start_using() + if contexts: + with self._connect() as con: + context_clause = " or ".join(["context regexp ?"] * len(contexts)) + cur = con.execute("select id from context where " + context_clause, contexts) + self._query_context_ids = [row[0] for row in cur.fetchall()] + else: + self._query_context_ids = None + + def lines(self, filename): + """Get the list of lines executed for a source file. + + If the file was not measured, returns None. A file might be measured, + and have no lines executed, in which case an empty list is returned. + + If the file was executed, returns a list of integers, the line numbers + executed in the file. The list is in no particular order. + + """ + self._start_using() + if self.has_arcs(): + arcs = self.arcs(filename) + if arcs is not None: + all_lines = itertools.chain.from_iterable(arcs) + return list({l for l in all_lines if l > 0}) + + with self._connect() as con: + file_id = self._file_id(filename) + if file_id is None: + return None + else: + query = "select numbits from line_bits where file_id = ?" + data = [file_id] + if self._query_context_ids is not None: + ids_array = ", ".join("?" * len(self._query_context_ids)) + query += " and context_id in (" + ids_array + ")" + data += self._query_context_ids + bitmaps = list(con.execute(query, data)) + nums = set() + for row in bitmaps: + nums.update(numbits_to_nums(row[0])) + return list(nums) + + def arcs(self, filename): + """Get the list of arcs executed for a file. + + If the file was not measured, returns None. A file might be measured, + and have no arcs executed, in which case an empty list is returned. + + If the file was executed, returns a list of 2-tuples of integers. Each + pair is a starting line number and an ending line number for a + transition from one line to another. The list is in no particular + order. + + Negative numbers have special meaning. If the starting line number is + -N, it represents an entry to the code object that starts at line N. + If the ending ling number is -N, it's an exit from the code object that + starts at line N. + + """ + self._start_using() + with self._connect() as con: + file_id = self._file_id(filename) + if file_id is None: + return None + else: + query = "select distinct fromno, tono from arc where file_id = ?" + data = [file_id] + if self._query_context_ids is not None: + ids_array = ", ".join("?" * len(self._query_context_ids)) + query += " and context_id in (" + ids_array + ")" + data += self._query_context_ids + arcs = con.execute(query, data) + return list(arcs) + + def contexts_by_lineno(self, filename): + """Get the contexts for each line in a file. + + Returns: + A dict mapping line numbers to a list of context names. + + .. versionadded:: 5.0 + + """ + self._start_using() + with self._connect() as con: + file_id = self._file_id(filename) + if file_id is None: + return {} + + lineno_contexts_map = collections.defaultdict(set) + if self.has_arcs(): + query = ( + "select arc.fromno, arc.tono, context.context " + + "from arc, context " + + "where arc.file_id = ? and arc.context_id = context.id" + ) + data = [file_id] + if self._query_context_ids is not None: + ids_array = ", ".join("?" * len(self._query_context_ids)) + query += " and arc.context_id in (" + ids_array + ")" + data += self._query_context_ids + for fromno, tono, context in con.execute(query, data): + if fromno > 0: + lineno_contexts_map[fromno].add(context) + if tono > 0: + lineno_contexts_map[tono].add(context) + else: + query = ( + "select l.numbits, c.context from line_bits l, context c " + + "where l.context_id = c.id " + + "and file_id = ?" + ) + data = [file_id] + if self._query_context_ids is not None: + ids_array = ", ".join("?" * len(self._query_context_ids)) + query += " and l.context_id in (" + ids_array + ")" + data += self._query_context_ids + for numbits, context in con.execute(query, data): + for lineno in numbits_to_nums(numbits): + lineno_contexts_map[lineno].add(context) + + return {lineno: list(contexts) for lineno, contexts in lineno_contexts_map.items()} + + @classmethod + def sys_info(cls): + """Our information for `Coverage.sys_info`. + + Returns a list of (key, value) pairs. + + """ + with SqliteDb(":memory:", debug=NoDebugging()) as db: + temp_store = [row[0] for row in db.execute("pragma temp_store")] + copts = [row[0] for row in db.execute("pragma compile_options")] + copts = textwrap.wrap(", ".join(copts), width=75) + + return [ + ("sqlite3_version", sqlite3.version), + ("sqlite3_sqlite_version", sqlite3.sqlite_version), + ("sqlite3_temp_store", temp_store), + ("sqlite3_compile_options", copts), + ] + + +def filename_suffix(suffix): + """Compute a filename suffix for a data file. + + If `suffix` is a string or None, simply return it. If `suffix` is True, + then build a suffix incorporating the hostname, process id, and a random + number. + + Returns a string or None. + + """ + if suffix is True: + # If data_suffix was a simple true value, then make a suffix with + # plenty of distinguishing information. We do this here in + # `save()` at the last minute so that the pid will be correct even + # if the process forks. + dice = random.Random(os.urandom(8)).randint(0, 999999) + suffix = "%s.%s.%06d" % (socket.gethostname(), os.getpid(), dice) + return suffix + + +class SqliteDb(SimpleReprMixin): + """A simple abstraction over a SQLite database. + + Use as a context manager, then you can use it like a + :class:`python:sqlite3.Connection` object:: + + with SqliteDb(filename, debug_control) as db: + db.execute("insert into schema (version) values (?)", (SCHEMA_VERSION,)) + + """ + def __init__(self, filename, debug): + self.debug = debug + self.filename = filename + self.nest = 0 + self.con = None + + def _connect(self): + """Connect to the db and do universal initialization.""" + if self.con is not None: + return + + # It can happen that Python switches threads while the tracer writes + # data. The second thread will also try to write to the data, + # effectively causing a nested context. However, given the idempotent + # nature of the tracer operations, sharing a connection among threads + # is not a problem. + if self.debug.should("sql"): + self.debug.write(f"Connecting to {self.filename!r}") + try: + self.con = sqlite3.connect(self.filename, check_same_thread=False) + except sqlite3.Error as exc: + raise DataError(f"Couldn't use data file {self.filename!r}: {exc}") from exc + + self.con.create_function("REGEXP", 2, lambda txt, pat: re.search(txt, pat) is not None) + + # This pragma makes writing faster. It disables rollbacks, but we never need them. + # PyPy needs the .close() calls here, or sqlite gets twisted up: + # https://bitbucket.org/pypy/pypy/issues/2872/default-isolation-mode-is-different-on + self.execute("pragma journal_mode=off").close() + # This pragma makes writing faster. + self.execute("pragma synchronous=off").close() + + def close(self): + """If needed, close the connection.""" + if self.con is not None and self.filename != ":memory:": + self.con.close() + self.con = None + + def __enter__(self): + if self.nest == 0: + self._connect() + self.con.__enter__() + self.nest += 1 + return self + + def __exit__(self, exc_type, exc_value, traceback): + self.nest -= 1 + if self.nest == 0: + try: + self.con.__exit__(exc_type, exc_value, traceback) + self.close() + except Exception as exc: + if self.debug.should("sql"): + self.debug.write(f"EXCEPTION from __exit__: {exc}") + raise DataError(f"Couldn't end data file {self.filename!r}: {exc}") from exc + + def execute(self, sql, parameters=()): + """Same as :meth:`python:sqlite3.Connection.execute`.""" + if self.debug.should("sql"): + tail = f" with {parameters!r}" if parameters else "" + self.debug.write(f"Executing {sql!r}{tail}") + try: + try: + return self.con.execute(sql, parameters) + except Exception: + # In some cases, an error might happen that isn't really an + # error. Try again immediately. + # https://github.com/nedbat/coveragepy/issues/1010 + return self.con.execute(sql, parameters) + except sqlite3.Error as exc: + msg = str(exc) + try: + # `execute` is the first thing we do with the database, so try + # hard to provide useful hints if something goes wrong now. + with open(self.filename, "rb") as bad_file: + cov4_sig = b"!coverage.py: This is a private format" + if bad_file.read(len(cov4_sig)) == cov4_sig: + msg = ( + "Looks like a coverage 4.x data file. " + + "Are you mixing versions of coverage?" + ) + except Exception: # pragma: cant happen + pass + if self.debug.should("sql"): + self.debug.write(f"EXCEPTION from execute: {msg}") + raise DataError(f"Couldn't use data file {self.filename!r}: {msg}") from exc + + def execute_for_rowid(self, sql, parameters=()): + """Like execute, but returns the lastrowid.""" + con = self.execute(sql, parameters) + rowid = con.lastrowid + if self.debug.should("sqldata"): + self.debug.write(f"Row id result: {rowid!r}") + return rowid + + def execute_one(self, sql, parameters=()): + """Execute a statement and return the one row that results. + + This is like execute(sql, parameters).fetchone(), except it is + correct in reading the entire result set. This will raise an + exception if more than one row results. + + Returns a row, or None if there were no rows. + """ + rows = list(self.execute(sql, parameters)) + if len(rows) == 0: + return None + elif len(rows) == 1: + return rows[0] + else: + raise AssertionError(f"SQL {sql!r} shouldn't return {len(rows)} rows") + + def executemany(self, sql, data): + """Same as :meth:`python:sqlite3.Connection.executemany`.""" + if self.debug.should("sql"): + data = list(data) + final = ":" if self.debug.should("sqldata") else "" + self.debug.write(f"Executing many {sql!r} with {len(data)} rows{final}") + if self.debug.should("sqldata"): + for i, row in enumerate(data): + self.debug.write(f"{i:4d}: {row!r}") + try: + return self.con.executemany(sql, data) + except Exception: # pragma: cant happen + # In some cases, an error might happen that isn't really an + # error. Try again immediately. + # https://github.com/nedbat/coveragepy/issues/1010 + return self.con.executemany(sql, data) + + def executescript(self, script): + """Same as :meth:`python:sqlite3.Connection.executescript`.""" + if self.debug.should("sql"): + self.debug.write("Executing script with {} chars: {}".format( + len(script), clipped_repr(script, 100), + )) + self.con.executescript(script) + + def dump(self): + """Return a multi-line string, the SQL dump of the database.""" + return "\n".join(self.con.iterdump()) diff --git a/utils/python-venv/Lib/site-packages/coverage/summary.py b/utils/python-venv/Lib/site-packages/coverage/summary.py new file mode 100644 index 0000000..861fbc5 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/summary.py @@ -0,0 +1,152 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""Summary reporting""" + +import sys + +from coverage.exceptions import ConfigError, NoDataError +from coverage.misc import human_sorted_items +from coverage.report import get_analysis_to_report +from coverage.results import Numbers + + +class SummaryReporter: + """A reporter for writing the summary report.""" + + def __init__(self, coverage): + self.coverage = coverage + self.config = self.coverage.config + self.branches = coverage.get_data().has_arcs() + self.outfile = None + self.fr_analysis = [] + self.skipped_count = 0 + self.empty_count = 0 + self.total = Numbers(precision=self.config.precision) + self.fmt_err = "%s %s: %s" + + def writeout(self, line): + """Write a line to the output, adding a newline.""" + self.outfile.write(line.rstrip()) + self.outfile.write("\n") + + def report(self, morfs, outfile=None): + """Writes a report summarizing coverage statistics per module. + + `outfile` is a file object to write the summary to. It must be opened + for native strings (bytes on Python 2, Unicode on Python 3). + + """ + self.outfile = outfile or sys.stdout + + self.coverage.get_data().set_query_contexts(self.config.report_contexts) + for fr, analysis in get_analysis_to_report(self.coverage, morfs): + self.report_one_file(fr, analysis) + + # Prepare the formatting strings, header, and column sorting. + max_name = max([len(fr.relative_filename()) for (fr, analysis) in self.fr_analysis] + [5]) + fmt_name = "%%- %ds " % max_name + fmt_skip_covered = "\n%s file%s skipped due to complete coverage." + fmt_skip_empty = "\n%s empty file%s skipped." + + header = (fmt_name % "Name") + " Stmts Miss" + fmt_coverage = fmt_name + "%6d %6d" + if self.branches: + header += " Branch BrPart" + fmt_coverage += " %6d %6d" + width100 = Numbers(precision=self.config.precision).pc_str_width() + header += "%*s" % (width100+4, "Cover") + fmt_coverage += "%%%ds%%%%" % (width100+3,) + if self.config.show_missing: + header += " Missing" + fmt_coverage += " %s" + rule = "-" * len(header) + + column_order = dict(name=0, stmts=1, miss=2, cover=-1) + if self.branches: + column_order.update(dict(branch=3, brpart=4)) + + # Write the header + self.writeout(header) + self.writeout(rule) + + # `lines` is a list of pairs, (line text, line values). The line text + # is a string that will be printed, and line values is a tuple of + # sortable values. + lines = [] + + for (fr, analysis) in self.fr_analysis: + nums = analysis.numbers + + args = (fr.relative_filename(), nums.n_statements, nums.n_missing) + if self.branches: + args += (nums.n_branches, nums.n_partial_branches) + args += (nums.pc_covered_str,) + if self.config.show_missing: + args += (analysis.missing_formatted(branches=True),) + text = fmt_coverage % args + # Add numeric percent coverage so that sorting makes sense. + args += (nums.pc_covered,) + lines.append((text, args)) + + # Sort the lines and write them out. + sort_option = (self.config.sort or "name").lower() + reverse = False + if sort_option[0] == '-': + reverse = True + sort_option = sort_option[1:] + elif sort_option[0] == '+': + sort_option = sort_option[1:] + + if sort_option == "name": + lines = human_sorted_items(lines, reverse=reverse) + else: + position = column_order.get(sort_option) + if position is None: + raise ConfigError(f"Invalid sorting option: {self.config.sort!r}") + lines.sort(key=lambda l: (l[1][position], l[0]), reverse=reverse) + + for line in lines: + self.writeout(line[0]) + + # Write a TOTAL line if we had at least one file. + if self.total.n_files > 0: + self.writeout(rule) + args = ("TOTAL", self.total.n_statements, self.total.n_missing) + if self.branches: + args += (self.total.n_branches, self.total.n_partial_branches) + args += (self.total.pc_covered_str,) + if self.config.show_missing: + args += ("",) + self.writeout(fmt_coverage % args) + + # Write other final lines. + if not self.total.n_files and not self.skipped_count: + raise NoDataError("No data to report.") + + if self.config.skip_covered and self.skipped_count: + self.writeout( + fmt_skip_covered % (self.skipped_count, 's' if self.skipped_count > 1 else '') + ) + if self.config.skip_empty and self.empty_count: + self.writeout( + fmt_skip_empty % (self.empty_count, 's' if self.empty_count > 1 else '') + ) + + return self.total.n_statements and self.total.pc_covered + + def report_one_file(self, fr, analysis): + """Report on just one file, the callback from report().""" + nums = analysis.numbers + self.total += nums + + no_missing_lines = (nums.n_missing == 0) + no_missing_branches = (nums.n_partial_branches == 0) + if self.config.skip_covered and no_missing_lines and no_missing_branches: + # Don't report on 100% files. + self.skipped_count += 1 + elif self.config.skip_empty and nums.n_statements == 0: + # Don't report on empty files. + self.empty_count += 1 + else: + self.fr_analysis.append((fr, analysis)) diff --git a/utils/python-venv/Lib/site-packages/coverage/templite.py b/utils/python-venv/Lib/site-packages/coverage/templite.py new file mode 100644 index 0000000..ab3cf1c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/templite.py @@ -0,0 +1,297 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""A simple Python template renderer, for a nano-subset of Django syntax. + +For a detailed discussion of this code, see this chapter from 500 Lines: +http://aosabook.org/en/500L/a-template-engine.html + +""" + +# Coincidentally named the same as http://code.activestate.com/recipes/496702/ + +import re + + +class TempliteSyntaxError(ValueError): + """Raised when a template has a syntax error.""" + pass + + +class TempliteValueError(ValueError): + """Raised when an expression won't evaluate in a template.""" + pass + + +class CodeBuilder: + """Build source code conveniently.""" + + def __init__(self, indent=0): + self.code = [] + self.indent_level = indent + + def __str__(self): + return "".join(str(c) for c in self.code) + + def add_line(self, line): + """Add a line of source to the code. + + Indentation and newline will be added for you, don't provide them. + + """ + self.code.extend([" " * self.indent_level, line, "\n"]) + + def add_section(self): + """Add a section, a sub-CodeBuilder.""" + section = CodeBuilder(self.indent_level) + self.code.append(section) + return section + + INDENT_STEP = 4 # PEP8 says so! + + def indent(self): + """Increase the current indent for following lines.""" + self.indent_level += self.INDENT_STEP + + def dedent(self): + """Decrease the current indent for following lines.""" + self.indent_level -= self.INDENT_STEP + + def get_globals(self): + """Execute the code, and return a dict of globals it defines.""" + # A check that the caller really finished all the blocks they started. + assert self.indent_level == 0 + # Get the Python source as a single string. + python_source = str(self) + # Execute the source, defining globals, and return them. + global_namespace = {} + exec(python_source, global_namespace) + return global_namespace + + +class Templite: + """A simple template renderer, for a nano-subset of Django syntax. + + Supported constructs are extended variable access:: + + {{var.modifier.modifier|filter|filter}} + + loops:: + + {% for var in list %}...{% endfor %} + + and ifs:: + + {% if var %}...{% endif %} + + Comments are within curly-hash markers:: + + {# This will be ignored #} + + Lines between `{% joined %}` and `{% endjoined %}` will have lines stripped + and joined. Be careful, this could join words together! + + Any of these constructs can have a hyphen at the end (`-}}`, `-%}`, `-#}`), + which will collapse the whitespace following the tag. + + Construct a Templite with the template text, then use `render` against a + dictionary context to create a finished string:: + + templite = Templite(''' +

Hello {{name|upper}}!

+ {% for topic in topics %} +

You are interested in {{topic}}.

+ {% endif %} + ''', + {'upper': str.upper}, + ) + text = templite.render({ + 'name': "Ned", + 'topics': ['Python', 'Geometry', 'Juggling'], + }) + + """ + def __init__(self, text, *contexts): + """Construct a Templite with the given `text`. + + `contexts` are dictionaries of values to use for future renderings. + These are good for filters and global values. + + """ + self.context = {} + for context in contexts: + self.context.update(context) + + self.all_vars = set() + self.loop_vars = set() + + # We construct a function in source form, then compile it and hold onto + # it, and execute it to render the template. + code = CodeBuilder() + + code.add_line("def render_function(context, do_dots):") + code.indent() + vars_code = code.add_section() + code.add_line("result = []") + code.add_line("append_result = result.append") + code.add_line("extend_result = result.extend") + code.add_line("to_str = str") + + buffered = [] + + def flush_output(): + """Force `buffered` to the code builder.""" + if len(buffered) == 1: + code.add_line("append_result(%s)" % buffered[0]) + elif len(buffered) > 1: + code.add_line("extend_result([%s])" % ", ".join(buffered)) + del buffered[:] + + ops_stack = [] + + # Split the text to form a list of tokens. + tokens = re.split(r"(?s)({{.*?}}|{%.*?%}|{#.*?#})", text) + + squash = in_joined = False + + for token in tokens: + if token.startswith('{'): + start, end = 2, -2 + squash = (token[-3] == '-') + if squash: + end = -3 + + if token.startswith('{#'): + # Comment: ignore it and move on. + continue + elif token.startswith('{{'): + # An expression to evaluate. + expr = self._expr_code(token[start:end].strip()) + buffered.append("to_str(%s)" % expr) + else: + # token.startswith('{%') + # Action tag: split into words and parse further. + flush_output() + + words = token[start:end].strip().split() + if words[0] == 'if': + # An if statement: evaluate the expression to determine if. + if len(words) != 2: + self._syntax_error("Don't understand if", token) + ops_stack.append('if') + code.add_line("if %s:" % self._expr_code(words[1])) + code.indent() + elif words[0] == 'for': + # A loop: iterate over expression result. + if len(words) != 4 or words[2] != 'in': + self._syntax_error("Don't understand for", token) + ops_stack.append('for') + self._variable(words[1], self.loop_vars) + code.add_line( + "for c_{} in {}:".format( + words[1], + self._expr_code(words[3]) + ) + ) + code.indent() + elif words[0] == 'joined': + ops_stack.append('joined') + in_joined = True + elif words[0].startswith('end'): + # Endsomething. Pop the ops stack. + if len(words) != 1: + self._syntax_error("Don't understand end", token) + end_what = words[0][3:] + if not ops_stack: + self._syntax_error("Too many ends", token) + start_what = ops_stack.pop() + if start_what != end_what: + self._syntax_error("Mismatched end tag", end_what) + if end_what == 'joined': + in_joined = False + else: + code.dedent() + else: + self._syntax_error("Don't understand tag", words[0]) + else: + # Literal content. If it isn't empty, output it. + if in_joined: + token = re.sub(r"\s*\n\s*", "", token.strip()) + elif squash: + token = token.lstrip() + if token: + buffered.append(repr(token)) + + if ops_stack: + self._syntax_error("Unmatched action tag", ops_stack[-1]) + + flush_output() + + for var_name in self.all_vars - self.loop_vars: + vars_code.add_line(f"c_{var_name} = context[{var_name!r}]") + + code.add_line('return "".join(result)') + code.dedent() + self._render_function = code.get_globals()['render_function'] + + def _expr_code(self, expr): + """Generate a Python expression for `expr`.""" + if "|" in expr: + pipes = expr.split("|") + code = self._expr_code(pipes[0]) + for func in pipes[1:]: + self._variable(func, self.all_vars) + code = f"c_{func}({code})" + elif "." in expr: + dots = expr.split(".") + code = self._expr_code(dots[0]) + args = ", ".join(repr(d) for d in dots[1:]) + code = f"do_dots({code}, {args})" + else: + self._variable(expr, self.all_vars) + code = "c_%s" % expr + return code + + def _syntax_error(self, msg, thing): + """Raise a syntax error using `msg`, and showing `thing`.""" + raise TempliteSyntaxError(f"{msg}: {thing!r}") + + def _variable(self, name, vars_set): + """Track that `name` is used as a variable. + + Adds the name to `vars_set`, a set of variable names. + + Raises an syntax error if `name` is not a valid name. + + """ + if not re.match(r"[_a-zA-Z][_a-zA-Z0-9]*$", name): + self._syntax_error("Not a valid name", name) + vars_set.add(name) + + def render(self, context=None): + """Render this template by applying it to `context`. + + `context` is a dictionary of values to use in this rendering. + + """ + # Make the complete context we'll use. + render_context = dict(self.context) + if context: + render_context.update(context) + return self._render_function(render_context, self._do_dots) + + def _do_dots(self, value, *dots): + """Evaluate dotted expressions at run-time.""" + for dot in dots: + try: + value = getattr(value, dot) + except AttributeError: + try: + value = value[dot] + except (TypeError, KeyError) as exc: + raise TempliteValueError( + f"Couldn't evaluate {value!r}.{dot}" + ) from exc + if callable(value): + value = value() + return value diff --git a/utils/python-venv/Lib/site-packages/coverage/tomlconfig.py b/utils/python-venv/Lib/site-packages/coverage/tomlconfig.py new file mode 100644 index 0000000..148c34f --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/tomlconfig.py @@ -0,0 +1,170 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""TOML configuration support for coverage.py""" + +import configparser +import os +import re + +from coverage import env +from coverage.exceptions import ConfigError +from coverage.misc import import_third_party, substitute_variables + + +if env.PYVERSION >= (3, 11, 0, "alpha", 7): + import tomllib # pylint: disable=import-error +else: + # TOML support on Python 3.10 and below is an install-time extra option. + # (Import typing is here because import_third_party will unload any module + # that wasn't already imported. tomli imports typing, and if we unload it, + # later it's imported again, and on Python 3.6, this causes infinite + # recursion.) + import typing # pylint: disable=unused-import + tomllib = import_third_party("tomli") + + +class TomlDecodeError(Exception): + """An exception class that exists even when toml isn't installed.""" + pass + + +class TomlConfigParser: + """TOML file reading with the interface of HandyConfigParser.""" + + # This class has the same interface as config.HandyConfigParser, no + # need for docstrings. + # pylint: disable=missing-function-docstring + + def __init__(self, our_file): + self.our_file = our_file + self.data = None + + def read(self, filenames): + # RawConfigParser takes a filename or list of filenames, but we only + # ever call this with a single filename. + assert isinstance(filenames, (bytes, str, os.PathLike)) + filename = os.fspath(filenames) + + try: + with open(filename, encoding='utf-8') as fp: + toml_text = fp.read() + except OSError: + return [] + if tomllib is not None: + toml_text = substitute_variables(toml_text, os.environ) + try: + self.data = tomllib.loads(toml_text) + except tomllib.TOMLDecodeError as err: + raise TomlDecodeError(str(err)) from err + return [filename] + else: + has_toml = re.search(r"^\[tool\.coverage\.", toml_text, flags=re.MULTILINE) + if self.our_file or has_toml: + # Looks like they meant to read TOML, but we can't read it. + msg = "Can't read {!r} without TOML support. Install with [toml] extra" + raise ConfigError(msg.format(filename)) + return [] + + def _get_section(self, section): + """Get a section from the data. + + Arguments: + section (str): A section name, which can be dotted. + + Returns: + name (str): the actual name of the section that was found, if any, + or None. + data (str): the dict of data in the section, or None if not found. + + """ + prefixes = ["tool.coverage."] + if self.our_file: + prefixes.append("") + for prefix in prefixes: + real_section = prefix + section + parts = real_section.split(".") + try: + data = self.data[parts[0]] + for part in parts[1:]: + data = data[part] + except KeyError: + continue + break + else: + return None, None + return real_section, data + + def _get(self, section, option): + """Like .get, but returns the real section name and the value.""" + name, data = self._get_section(section) + if data is None: + raise configparser.NoSectionError(section) + try: + return name, data[option] + except KeyError as exc: + raise configparser.NoOptionError(option, name) from exc + + def has_option(self, section, option): + _, data = self._get_section(section) + if data is None: + return False + return option in data + + def has_section(self, section): + name, _ = self._get_section(section) + return name + + def options(self, section): + _, data = self._get_section(section) + if data is None: + raise configparser.NoSectionError(section) + return list(data.keys()) + + def get_section(self, section): + _, data = self._get_section(section) + return data + + def get(self, section, option): + _, value = self._get(section, option) + return value + + def _check_type(self, section, option, value, type_, type_desc): + if not isinstance(value, type_): + raise ValueError( + 'Option {!r} in section {!r} is not {}: {!r}' + .format(option, section, type_desc, value) + ) + + def getboolean(self, section, option): + name, value = self._get(section, option) + self._check_type(name, option, value, bool, "a boolean") + return value + + def getlist(self, section, option): + name, values = self._get(section, option) + self._check_type(name, option, values, list, "a list") + return values + + def getregexlist(self, section, option): + name, values = self._get(section, option) + self._check_type(name, option, values, list, "a list") + for value in values: + value = value.strip() + try: + re.compile(value) + except re.error as e: + raise ConfigError(f"Invalid [{name}].{option} value {value!r}: {e}") from e + return values + + def getint(self, section, option): + name, value = self._get(section, option) + self._check_type(name, option, value, int, "an integer") + return value + + def getfloat(self, section, option): + name, value = self._get(section, option) + if isinstance(value, int): + value = float(value) + self._check_type(name, option, value, float, "a float") + return value diff --git a/utils/python-venv/Lib/site-packages/coverage/tracer.cp310-win_amd64.pyd 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_make_version(major, minor, micro, releaselevel, serial): + """Create a readable version string from version_info tuple components.""" + assert releaselevel in ['alpha', 'beta', 'candidate', 'final'] + version = "%d.%d.%d" % (major, minor, micro) + if releaselevel != 'final': + short = {'alpha': 'a', 'beta': 'b', 'candidate': 'rc'}[releaselevel] + version += f"{short}{serial}" + return version + + +def _make_url(major, minor, micro, releaselevel, serial): + """Make the URL people should start at for this version of coverage.py.""" + url = "https://coverage.readthedocs.io" + if releaselevel != 'final': + # For pre-releases, use a version-specific URL. + url += "/en/" + _make_version(major, minor, micro, releaselevel, serial) + return url + + +__version__ = _make_version(*version_info) +__url__ = _make_url(*version_info) diff --git a/utils/python-venv/Lib/site-packages/coverage/xmlreport.py b/utils/python-venv/Lib/site-packages/coverage/xmlreport.py new file mode 100644 index 0000000..2c34cb5 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/coverage/xmlreport.py @@ -0,0 +1,230 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt + +"""XML reporting for coverage.py""" + +import os +import os.path +import sys +import time +import xml.dom.minidom + +from coverage import __url__, __version__, files +from coverage.misc import isolate_module, human_sorted, human_sorted_items +from coverage.report import get_analysis_to_report + +os = isolate_module(os) + + +DTD_URL = 'https://raw.githubusercontent.com/cobertura/web/master/htdocs/xml/coverage-04.dtd' + + +def rate(hit, num): + """Return the fraction of `hit`/`num`, as a string.""" + if num == 0: + return "1" + else: + return "%.4g" % (float(hit) / num) + + +class XmlReporter: + """A reporter for writing Cobertura-style XML coverage results.""" + + report_type = "XML report" + + def __init__(self, coverage): + self.coverage = coverage + self.config = self.coverage.config + + self.source_paths = set() + if self.config.source: + for src in self.config.source: + if os.path.exists(src): + if not self.config.relative_files: + src = files.canonical_filename(src) + self.source_paths.add(src) + self.packages = {} + self.xml_out = None + + def report(self, morfs, outfile=None): + """Generate a Cobertura-compatible XML report for `morfs`. + + `morfs` is a list of modules or file names. + + `outfile` is a file object to write the XML to. + + """ + # Initial setup. + outfile = outfile or sys.stdout + has_arcs = self.coverage.get_data().has_arcs() + + # Create the DOM that will store the data. + impl = xml.dom.minidom.getDOMImplementation() + self.xml_out = impl.createDocument(None, "coverage", None) + + # Write header stuff. + xcoverage = self.xml_out.documentElement + xcoverage.setAttribute("version", __version__) + xcoverage.setAttribute("timestamp", str(int(time.time()*1000))) + xcoverage.appendChild(self.xml_out.createComment( + f" Generated by coverage.py: {__url__} " + )) + xcoverage.appendChild(self.xml_out.createComment(f" Based on {DTD_URL} ")) + + # Call xml_file for each file in the data. + for fr, analysis in get_analysis_to_report(self.coverage, morfs): + self.xml_file(fr, analysis, has_arcs) + + xsources = self.xml_out.createElement("sources") + xcoverage.appendChild(xsources) + + # Populate the XML DOM with the source info. + for path in human_sorted(self.source_paths): + xsource = self.xml_out.createElement("source") + xsources.appendChild(xsource) + txt = self.xml_out.createTextNode(path) + xsource.appendChild(txt) + + lnum_tot, lhits_tot = 0, 0 + bnum_tot, bhits_tot = 0, 0 + + xpackages = self.xml_out.createElement("packages") + xcoverage.appendChild(xpackages) + + # Populate the XML DOM with the package info. + for pkg_name, pkg_data in human_sorted_items(self.packages.items()): + class_elts, lhits, lnum, bhits, bnum = pkg_data + xpackage = self.xml_out.createElement("package") + xpackages.appendChild(xpackage) + xclasses = self.xml_out.createElement("classes") + xpackage.appendChild(xclasses) + for _, class_elt in human_sorted_items(class_elts.items()): + xclasses.appendChild(class_elt) + xpackage.setAttribute("name", pkg_name.replace(os.sep, '.')) + xpackage.setAttribute("line-rate", rate(lhits, lnum)) + if has_arcs: + branch_rate = rate(bhits, bnum) + else: + branch_rate = "0" + xpackage.setAttribute("branch-rate", branch_rate) + xpackage.setAttribute("complexity", "0") + + lnum_tot += lnum + lhits_tot += lhits + bnum_tot += bnum + bhits_tot += bhits + + xcoverage.setAttribute("lines-valid", str(lnum_tot)) + xcoverage.setAttribute("lines-covered", str(lhits_tot)) + xcoverage.setAttribute("line-rate", rate(lhits_tot, lnum_tot)) + if has_arcs: + xcoverage.setAttribute("branches-valid", str(bnum_tot)) + xcoverage.setAttribute("branches-covered", str(bhits_tot)) + xcoverage.setAttribute("branch-rate", rate(bhits_tot, bnum_tot)) + else: + xcoverage.setAttribute("branches-covered", "0") + xcoverage.setAttribute("branches-valid", "0") + xcoverage.setAttribute("branch-rate", "0") + xcoverage.setAttribute("complexity", "0") + + # Write the output file. + outfile.write(serialize_xml(self.xml_out)) + + # Return the total percentage. + denom = lnum_tot + bnum_tot + if denom == 0: + pct = 0.0 + else: + pct = 100.0 * (lhits_tot + bhits_tot) / denom + return pct + + def xml_file(self, fr, analysis, has_arcs): + """Add to the XML report for a single file.""" + + if self.config.skip_empty: + if analysis.numbers.n_statements == 0: + return + + # Create the 'lines' and 'package' XML elements, which + # are populated later. Note that a package == a directory. + filename = fr.filename.replace("\\", "/") + for source_path in self.source_paths: + source_path = files.canonical_filename(source_path) + if filename.startswith(source_path.replace("\\", "/") + "/"): + rel_name = filename[len(source_path)+1:] + break + else: + rel_name = fr.relative_filename() + self.source_paths.add(fr.filename[:-len(rel_name)].rstrip(r"\/")) + + dirname = os.path.dirname(rel_name) or "." + dirname = "/".join(dirname.split("/")[:self.config.xml_package_depth]) + package_name = dirname.replace("/", ".") + + package = self.packages.setdefault(package_name, [{}, 0, 0, 0, 0]) + + xclass = self.xml_out.createElement("class") + + xclass.appendChild(self.xml_out.createElement("methods")) + + xlines = self.xml_out.createElement("lines") + xclass.appendChild(xlines) + + xclass.setAttribute("name", os.path.relpath(rel_name, dirname)) + xclass.setAttribute("filename", rel_name.replace("\\", "/")) + xclass.setAttribute("complexity", "0") + + branch_stats = analysis.branch_stats() + missing_branch_arcs = analysis.missing_branch_arcs() + + # For each statement, create an XML 'line' element. + for line in sorted(analysis.statements): + xline = self.xml_out.createElement("line") + xline.setAttribute("number", str(line)) + + # Q: can we get info about the number of times a statement is + # executed? If so, that should be recorded here. + xline.setAttribute("hits", str(int(line not in analysis.missing))) + + if has_arcs: + if line in branch_stats: + total, taken = branch_stats[line] + xline.setAttribute("branch", "true") + xline.setAttribute( + "condition-coverage", + "%d%% (%d/%d)" % (100*taken//total, taken, total) + ) + if line in missing_branch_arcs: + annlines = ["exit" if b < 0 else str(b) for b in missing_branch_arcs[line]] + xline.setAttribute("missing-branches", ",".join(annlines)) + xlines.appendChild(xline) + + class_lines = len(analysis.statements) + class_hits = class_lines - len(analysis.missing) + + if has_arcs: + class_branches = sum(t for t, k in branch_stats.values()) + missing_branches = sum(t - k for t, k in branch_stats.values()) + class_br_hits = class_branches - missing_branches + else: + class_branches = 0.0 + class_br_hits = 0.0 + + # Finalize the statistics that are collected in the XML DOM. + xclass.setAttribute("line-rate", rate(class_hits, class_lines)) + if has_arcs: + branch_rate = rate(class_br_hits, class_branches) + else: + branch_rate = "0" + xclass.setAttribute("branch-rate", branch_rate) + + package[0][rel_name] = xclass + package[1] += class_hits + package[2] += class_lines + package[3] += class_br_hits + package[4] += class_branches + + +def serialize_xml(dom): + """Serialize a minidom node to XML.""" + return dom.toprettyxml() diff --git a/utils/python-venv/Lib/site-packages/distutils-precedence.pth b/utils/python-venv/Lib/site-packages/distutils-precedence.pth new file mode 100644 index 0000000..7f009fe --- /dev/null +++ b/utils/python-venv/Lib/site-packages/distutils-precedence.pth @@ -0,0 +1 @@ +import os; var = 'SETUPTOOLS_USE_DISTUTILS'; enabled = os.environ.get(var, 'local') == 'local'; enabled and __import__('_distutils_hack').add_shim(); diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/INSTALLER b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/INSTALLER new file mode 100644 index 0000000..a1b589e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/LICENSE b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/LICENSE new file mode 100644 index 0000000..50d4fa5 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/LICENSE @@ -0,0 +1,73 @@ +The MIT License (MIT) + +Copyright (c) 2022 Alex Grönholm + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of +the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS +FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + +This project contains code copied from the Python standard library. +The following is the required license notice for those parts. + +PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2 +-------------------------------------------- + +1. This LICENSE AGREEMENT is between the Python Software Foundation +("PSF"), and the Individual or Organization ("Licensee") accessing and +otherwise using this software ("Python") in source or binary form and +its associated documentation. + +2. Subject to the terms and conditions of this License Agreement, PSF hereby +grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce, +analyze, test, perform and/or display publicly, prepare derivative works, +distribute, and otherwise use Python alone or in any derivative version, +provided, however, that PSF's License Agreement and PSF's notice of copyright, +i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, +2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 Python Software Foundation; +All Rights Reserved" are retained in Python alone or in any derivative version +prepared by Licensee. + +3. In the event Licensee prepares a derivative work that is based on +or incorporates Python or any part thereof, and wants to make +the derivative work available to others as provided herein, then +Licensee hereby agrees to include in any such work a brief summary of +the changes made to Python. + +4. PSF is making Python available to Licensee on an "AS IS" +basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR +IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND +DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS +FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT +INFRINGE ANY THIRD PARTY RIGHTS. + +5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON +FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS +A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON, +OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. + +6. This License Agreement will automatically terminate upon a material +breach of its terms and conditions. + +7. Nothing in this License Agreement shall be deemed to create any +relationship of agency, partnership, or joint venture between PSF and +Licensee. This License Agreement does not grant permission to use PSF +trademarks or trade name in a trademark sense to endorse or promote +products or services of Licensee, or any third party. + +8. By copying, installing or otherwise using Python, Licensee +agrees to be bound by the terms and conditions of this License +Agreement. diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/METADATA b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/METADATA new file mode 100644 index 0000000..535a338 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/METADATA @@ -0,0 +1,141 @@ +Metadata-Version: 2.1 +Name: exceptiongroup +Version: 1.0.0 +Summary: Backport of PEP 654 (exception groups) +Author-email: Alex Grönholm +Requires-Python: >=3.7 +Description-Content-Type: text/x-rst +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: MIT License +Classifier: Programming Language :: Python +Classifier: Programming Language :: Python :: 3 :: Only +Classifier: Typing :: Typed +Requires-Dist: pytest >= 6 ; extra == "test" +Project-URL: Changelog, https://github.com/agronholm/exceptiongroup/blob/main/CHANGES.rst +Project-URL: Issue Tracker, https://github.com/agronholm/exceptiongroup/issues +Project-URL: Source code, https://github.com/agronholm/exceptiongroup +Provides-Extra: test + +.. image:: https://github.com/agronholm/exceptiongroup/actions/workflows/test.yml/badge.svg + :target: https://github.com/agronholm/exceptiongroup/actions/workflows/test.yml + :alt: Build Status +.. image:: https://coveralls.io/repos/github/agronholm/exceptiongroup/badge.svg?branch=main + :target: https://coveralls.io/github/agronholm/exceptiongroup?branch=main + :alt: Code Coverage + +This is a backport of the ``BaseExceptionGroup`` and ``ExceptionGroup`` classes from +Python 3.11. + +It contains the following: + +* The ``exceptiongroup.BaseExceptionGroup`` and ``exceptiongroup.ExceptionGroup`` + classes +* A utility function (``exceptiongroup.catch()``) for catching exceptions possibly + nested in an exception group +* Patches to the ``TracebackException`` class that properly formats exception groups + (installed on import) +* An exception hook that handles formatting of exception groups through + ``TracebackException`` (installed on import) +* Special versions of some of the functions from the ``traceback`` module, modified to + correctly handle exception groups even when monkey patching is disabled, or blocked by + another custom exception hook: + + * ``traceback.format_exception()`` + * ``traceback.format_exception_only()`` + * ``traceback.print_exception()`` + * ``traceback.print_exc()`` + +If this package is imported on Python 3.11 or later, the built-in implementations of the +exception group classes are used instead, ``TracebackException`` is not monkey patched +and the exception hook won't be installed. + +See the `standard library documentation`_ for more information on exception groups. + +.. _standard library documentation: https://docs.python.org/3/library/exceptions.html + +Catching exceptions +=================== + +Due to the lack of the ``except*`` syntax introduced by `PEP 654`_ in earlier Python +versions, you need to use ``exceptiongroup.catch()`` to catch exceptions that are +potentially nested inside an exception group. This function returns a context manager +that calls the given handler for any exceptions matching the sole argument. + +The argument to ``catch()`` must be a dict (or any ``Mapping``) where each key is either +an exception class or an iterable of exception classes. Each value must be a callable +that takes a single positional argument. The handler will be called at most once, with +an exception group as an argument which will contain all the exceptions that are any +of the given types, or their subclasses. The exception group may contain nested groups +containing more matching exceptions. + +Thus, the following Python 3.11+ code: + +.. code-block:: python3 + + try: + ... + except* (ValueError, KeyError) as excgroup: + for exc in excgroup.exceptions: + print('Caught exception:', type(exc)) + except* RuntimeError: + print('Caught runtime error') + +would be written with this backport like this: + +.. code-block:: python3 + + from exceptiongroup import ExceptionGroup, catch + + def value_key_err_handler(excgroup: ExceptionGroup) -> None: + for exc in excgroup.exceptions: + print('Caught exception:', type(exc)) + + def runtime_err_handler(exc: ExceptionGroup) -> None: + print('Caught runtime error') + + with catch({ + (ValueError, KeyError): value_key_err_handler, + RuntimeError: runtime_err_handler + }): + ... + +**NOTE**: Just like with ``except*``, you cannot handle ``BaseExceptionGroup`` or +``ExceptionGroup`` with ``catch()``. + +Notes on monkey patching +======================== + +To make exception groups render properly when an unhandled exception group is being +printed out, this package does two things when it is imported on any Python version +earlier than 3.11: + +#. The ``traceback.TracebackException`` class is monkey patched to store extra + information about exception groups (in ``__init__()``) and properly format them (in + ``format()``) +#. An exception hook is installed at ``sys.excepthook``, provided that no other hook is + already present. This hook causes the exception to be formatted using + ``traceback.TracebackException`` rather than the built-in rendered. + +If ``sys.exceptionhook`` is found to be set to something else than the default when +``exceptiongroup`` is imported, no monkeypatching is done at all. + +To prevent the exception hook and patches from being installed, set the environment +variable ``EXCEPTIONGROUP_NO_PATCH`` to ``1``. + +Formatting exception groups +--------------------------- + +Normally, the monkey patching applied by this library on import will cause exception +groups to be printed properly in tracebacks. But in cases when the monkey patching is +blocked by a third party exception hook, or monkey patching is explicitly disabled, +you can still manually format exceptions using the special versions of the ``traceback`` +functions, like ``format_exception()``, listed at the top of this page. They work just +like their counterparts in the ``traceback`` module, except that they use a separately +patched subclass of ``TracebackException`` to perform the rendering. + +Particularly in cases where a library installs its own exception hook, it is recommended +to use these special versions to do the actual formatting of exceptions/tracebacks. + +.. _PEP 654: https://www.python.org/dev/peps/pep-0654/ + diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/RECORD b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/RECORD new file mode 100644 index 0000000..a0abe7c --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/RECORD @@ -0,0 +1,16 @@ +exceptiongroup-1.0.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +exceptiongroup-1.0.0.dist-info/LICENSE,sha256=blBw12UDHgrUA6HL-Qrm0ZoCKPgC4yC3rP9GCqcu1Hw,3704 +exceptiongroup-1.0.0.dist-info/METADATA,sha256=hUNdg8I9ktjbq7rOSH6XGZhxJQB8a94ZYiVABt6m13s,6083 +exceptiongroup-1.0.0.dist-info/RECORD,, +exceptiongroup-1.0.0.dist-info/WHEEL,sha256=4TfKIB_xu-04bc2iKz6_zFt-gEFEEDU_31HGhqzOCE8,81 +exceptiongroup/__init__.py,sha256=Zr-MMWDXFMdrRBC8nS8UFqATRQL0Z-Lb-SANqs-uu0I,920 +exceptiongroup/__pycache__/__init__.cpython-310.pyc,, +exceptiongroup/__pycache__/_catch.cpython-310.pyc,, +exceptiongroup/__pycache__/_exceptions.cpython-310.pyc,, +exceptiongroup/__pycache__/_formatting.cpython-310.pyc,, +exceptiongroup/__pycache__/_version.cpython-310.pyc,, +exceptiongroup/_catch.py,sha256=m7BHRSU_kKy_pqMISPArf99zW1RgMG00i8623f7_sEo,3578 +exceptiongroup/_exceptions.py,sha256=dgaJUb5mZacPl81T-N5c-yav77aAaq2qR8gdaMOocSI,6709 +exceptiongroup/_formatting.py,sha256=cvOabBHv3kJX2Ro_k1a_qaO3vKfsju9EWxlpxp8-R2A,13645 +exceptiongroup/_version.py,sha256=XOK0OR9a7lhuJ90Z1ilVUxr-KiKlU6duLTEFS_4wjFg,176 +exceptiongroup/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/WHEEL b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/WHEEL new file mode 100644 index 0000000..668ba4d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup-1.0.0.dist-info/WHEEL @@ -0,0 +1,4 @@ +Wheel-Version: 1.0 +Generator: flit 3.7.1 +Root-Is-Purelib: true +Tag: py3-none-any diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup/__init__.py b/utils/python-venv/Lib/site-packages/exceptiongroup/__init__.py new file mode 100644 index 0000000..0e7e02b --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup/__init__.py @@ -0,0 +1,40 @@ +__all__ = [ + "BaseExceptionGroup", + "ExceptionGroup", + "catch", + "format_exception", + "format_exception_only", + "print_exception", + "print_exc", +] + +import os +import sys + +from ._catch import catch +from ._version import version as __version__ # noqa: F401 + +if sys.version_info < (3, 11): + from ._exceptions import BaseExceptionGroup, ExceptionGroup + from ._formatting import ( + format_exception, + format_exception_only, + print_exc, + print_exception, + ) + + if os.getenv("EXCEPTIONGROUP_NO_PATCH") != "1": + from . import _formatting # noqa: F401 + + BaseExceptionGroup.__module__ = __name__ + ExceptionGroup.__module__ = __name__ +else: + from traceback import ( + format_exception, + format_exception_only, + print_exc, + print_exception, + ) + + BaseExceptionGroup = BaseExceptionGroup + ExceptionGroup = ExceptionGroup diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup/_catch.py b/utils/python-venv/Lib/site-packages/exceptiongroup/_catch.py new file mode 100644 index 0000000..aa16d16 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup/_catch.py @@ -0,0 +1,114 @@ +from __future__ import annotations + +import sys +from collections.abc import Callable, Iterable, Mapping +from contextlib import AbstractContextManager +from types import TracebackType +from typing import TYPE_CHECKING, Any + +if sys.version_info < (3, 11): + from ._exceptions import BaseExceptionGroup + +if TYPE_CHECKING: + _Handler = Callable[[BaseException], Any] + + +class _Catcher: + def __init__(self, handler_map: Mapping[tuple[type[BaseException], ...], _Handler]): + self._handler_map = handler_map + + def __enter__(self) -> None: + pass + + def __exit__( + self, + etype: type[BaseException] | None, + exc: BaseException | None, + tb: TracebackType | None, + ) -> bool: + if exc is not None: + unhandled = self.handle_exception(exc) + if unhandled is exc: + return False + elif unhandled is None: + return True + else: + raise unhandled from None + + return False + + def handle_exception(self, exc: BaseException) -> BaseExceptionGroup | None: + excgroup: BaseExceptionGroup | None + if isinstance(exc, BaseExceptionGroup): + excgroup = exc + else: + excgroup = BaseExceptionGroup("", [exc]) + + new_exceptions: list[BaseException] = [] + for exc_types, handler in self._handler_map.items(): + matched, excgroup = excgroup.split(exc_types) + if matched: + try: + handler(matched) + except BaseException as new_exc: + new_exceptions.append(new_exc) + + if not excgroup: + break + + if new_exceptions: + if excgroup: + new_exceptions.append(excgroup) + + return BaseExceptionGroup("", new_exceptions) + elif ( + excgroup and len(excgroup.exceptions) == 1 and excgroup.exceptions[0] is exc + ): + return exc + else: + return excgroup + + +def catch( + __handlers: Mapping[type[BaseException] | Iterable[type[BaseException]], _Handler] +) -> AbstractContextManager[None]: + if not isinstance(__handlers, Mapping): + raise TypeError("the argument must be a mapping") + + handler_map: dict[ + tuple[type[BaseException], ...], Callable[[BaseExceptionGroup]] + ] = {} + for type_or_iterable, handler in __handlers.items(): + iterable: tuple[type[BaseException]] + if isinstance(type_or_iterable, type) and issubclass( + type_or_iterable, BaseException + ): + iterable = (type_or_iterable,) + elif isinstance(type_or_iterable, Iterable): + iterable = tuple(type_or_iterable) + else: + raise TypeError( + "each key must be either an exception classes or an iterable thereof" + ) + + if not callable(handler): + raise TypeError("handlers must be callable") + + for exc_type in iterable: + if not isinstance(exc_type, type) or not issubclass( + exc_type, BaseException + ): + raise TypeError( + "each key must be either an exception classes or an iterable " + "thereof" + ) + + if issubclass(exc_type, BaseExceptionGroup): + raise TypeError( + "catching ExceptionGroup with catch() is not allowed. " + "Use except instead." + ) + + handler_map[iterable] = handler + + return _Catcher(handler_map) diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup/_exceptions.py b/utils/python-venv/Lib/site-packages/exceptiongroup/_exceptions.py new file mode 100644 index 0000000..3a3d049 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup/_exceptions.py @@ -0,0 +1,185 @@ +from __future__ import annotations + +from collections.abc import Sequence +from functools import partial +from inspect import getmro, isclass +from typing import Any, Callable, Generic, Tuple, Type, TypeVar, Union, cast + +T = TypeVar("T", bound="BaseExceptionGroup") +EBase = TypeVar("EBase", bound=BaseException) +E = TypeVar("E", bound=Exception) +_SplitCondition = Union[ + Type[EBase], + Tuple[Type[EBase], ...], + Callable[[EBase], bool], +] + + +def check_direct_subclass( + exc: BaseException, parents: tuple[type[BaseException]] +) -> bool: + for cls in getmro(exc.__class__)[:-1]: + if cls in parents: + return True + + return False + + +def get_condition_filter(condition: _SplitCondition) -> Callable[[BaseException], bool]: + if isclass(condition) and issubclass( + cast(Type[BaseException], condition), BaseException + ): + return partial(check_direct_subclass, parents=(condition,)) + elif isinstance(condition, tuple): + if all(isclass(x) and issubclass(x, BaseException) for x in condition): + return partial(check_direct_subclass, parents=condition) + elif callable(condition): + return cast(Callable[[BaseException], bool], condition) + + raise TypeError("expected a function, exception type or tuple of exception types") + + +class BaseExceptionGroup(BaseException, Generic[EBase]): + """A combination of multiple unrelated exceptions.""" + + def __new__( + cls, __message: str, __exceptions: Sequence[EBase] + ) -> BaseExceptionGroup[EBase] | ExceptionGroup[E]: + if not isinstance(__message, str): + raise TypeError(f"argument 1 must be str, not {type(__message)}") + if not isinstance(__exceptions, Sequence): + raise TypeError("second argument (exceptions) must be a sequence") + if not __exceptions: + raise ValueError( + "second argument (exceptions) must be a non-empty sequence" + ) + + for i, exc in enumerate(__exceptions): + if not isinstance(exc, BaseException): + raise ValueError( + f"Item {i} of second argument (exceptions) is not an " f"exception" + ) + + if cls is BaseExceptionGroup: + if all(isinstance(exc, Exception) for exc in __exceptions): + cls = ExceptionGroup + + return super().__new__(cls, __message, __exceptions) + + def __init__(self, __message: str, __exceptions: Sequence[EBase], *args: Any): + super().__init__(__message, __exceptions, *args) + self._message = __message + self._exceptions = __exceptions + + def add_note(self, note: str) -> None: + if not isinstance(note, str): + raise TypeError( + f"Expected a string, got note={note!r} (type {type(note).__name__})" + ) + + if not hasattr(self, "__notes__"): + self.__notes__: list[str] = [] + + self.__notes__.append(note) + + @property + def message(self) -> str: + return self._message + + @property + def exceptions(self) -> tuple[EBase, ...]: + return tuple(self._exceptions) + + def subgroup(self: T, __condition: _SplitCondition[EBase]) -> T | None: + condition = get_condition_filter(__condition) + modified = False + if condition(self): + return self + + exceptions: list[BaseException] = [] + for exc in self.exceptions: + if isinstance(exc, BaseExceptionGroup): + subgroup = exc.subgroup(condition) + if subgroup is not None: + exceptions.append(subgroup) + + if subgroup is not exc: + modified = True + elif condition(exc): + exceptions.append(exc) + else: + modified = True + + if not modified: + return self + elif exceptions: + group = self.derive(exceptions) + group.__cause__ = self.__cause__ + group.__context__ = self.__context__ + group.__traceback__ = self.__traceback__ + return group + else: + return None + + def split( + self: T, __condition: _SplitCondition[EBase] + ) -> tuple[T | None, T | None]: + condition = get_condition_filter(__condition) + if condition(self): + return self, None + + matching_exceptions: list[BaseException] = [] + nonmatching_exceptions: list[BaseException] = [] + for exc in self.exceptions: + if isinstance(exc, BaseExceptionGroup): + matching, nonmatching = exc.split(condition) + if matching is not None: + matching_exceptions.append(matching) + + if nonmatching is not None: + nonmatching_exceptions.append(nonmatching) + elif condition(exc): + matching_exceptions.append(exc) + else: + nonmatching_exceptions.append(exc) + + matching_group: T | None = None + if matching_exceptions: + matching_group = self.derive(matching_exceptions) + matching_group.__cause__ = self.__cause__ + matching_group.__context__ = self.__context__ + matching_group.__traceback__ = self.__traceback__ + + nonmatching_group: T | None = None + if nonmatching_exceptions: + nonmatching_group = self.derive(nonmatching_exceptions) + nonmatching_group.__cause__ = self.__cause__ + nonmatching_group.__context__ = self.__context__ + nonmatching_group.__traceback__ = self.__traceback__ + + return matching_group, nonmatching_group + + def derive(self: T, __excs: Sequence[EBase]) -> T: + eg = BaseExceptionGroup(self.message, __excs) + if hasattr(self, "__notes__"): + # Create a new list so that add_note() only affects one exceptiongroup + eg.__notes__ = list(self.__notes__) + return eg + + def __str__(self) -> str: + suffix = "" if len(self._exceptions) == 1 else "s" + return f"{self.message} ({len(self._exceptions)} sub-exception{suffix})" + + def __repr__(self) -> str: + return f"{self.__class__.__name__}({self.message!r}, {self._exceptions!r})" + + +class ExceptionGroup(BaseExceptionGroup[E], Exception, Generic[E]): + def __new__(cls, __message: str, __exceptions: Sequence[E]) -> ExceptionGroup[E]: + instance: ExceptionGroup[E] = super().__new__(cls, __message, __exceptions) + if cls is ExceptionGroup: + for exc in __exceptions: + if not isinstance(exc, Exception): + raise TypeError("Cannot nest BaseExceptions in an ExceptionGroup") + + return instance diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup/_formatting.py b/utils/python-venv/Lib/site-packages/exceptiongroup/_formatting.py new file mode 100644 index 0000000..0bffd91 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup/_formatting.py @@ -0,0 +1,399 @@ +# traceback_exception_init() adapted from trio +# +# _ExceptionPrintContext and traceback_exception_format() copied from the standard +# library +from __future__ import annotations + +import collections.abc +import sys +import textwrap +import traceback +from functools import singledispatch +from types import TracebackType +from typing import Any, List, Optional + +from ._exceptions import BaseExceptionGroup + +max_group_width = 15 +max_group_depth = 10 +_cause_message = ( + "\nThe above exception was the direct cause of the following exception:\n\n" +) + +_context_message = ( + "\nDuring handling of the above exception, another exception occurred:\n\n" +) + + +def _format_final_exc_line(etype, value): + valuestr = _safe_string(value, "exception") + if value is None or not valuestr: + line = f"{etype}\n" + else: + line = f"{etype}: {valuestr}\n" + + return line + + +def _safe_string(value, what, func=str): + try: + return func(value) + except BaseException: + return f"<{what} {func.__name__}() failed>" + + +class _ExceptionPrintContext: + def __init__(self): + self.seen = set() + self.exception_group_depth = 0 + self.need_close = False + + def indent(self): + return " " * (2 * self.exception_group_depth) + + def emit(self, text_gen, margin_char=None): + if margin_char is None: + margin_char = "|" + indent_str = self.indent() + if self.exception_group_depth: + indent_str += margin_char + " " + + if isinstance(text_gen, str): + yield textwrap.indent(text_gen, indent_str, lambda line: True) + else: + for text in text_gen: + yield textwrap.indent(text, indent_str, lambda line: True) + + +def exceptiongroup_excepthook( + etype: type[BaseException], value: BaseException, tb: TracebackType | None +) -> None: + sys.stderr.write("".join(traceback.format_exception(etype, value, tb))) + + +class PatchedTracebackException(traceback.TracebackException): + def __init__( + self, + exc_type: type[BaseException], + exc_value: BaseException, + exc_traceback: TracebackType | None, + *, + limit: int | None = None, + lookup_lines: bool = True, + capture_locals: bool = False, + compact: bool = False, + _seen: set[int] | None = None, + ) -> None: + kwargs: dict[str, Any] = {} + if sys.version_info >= (3, 10): + kwargs["compact"] = compact + + traceback_exception_original_init( + self, + exc_type, + exc_value, + exc_traceback, + limit=limit, + lookup_lines=lookup_lines, + capture_locals=capture_locals, + _seen=_seen, + **kwargs, + ) + + is_recursive_call = _seen is not None + if _seen is None: + _seen = set() + _seen.add(id(exc_value)) + + # Convert __cause__ and __context__ to `TracebackExceptions`s, use a + # queue to avoid recursion (only the top-level call gets _seen == None) + if not is_recursive_call: + queue = [(self, exc_value)] + while queue: + te, e = queue.pop() + + if e and e.__cause__ is not None and id(e.__cause__) not in _seen: + cause = PatchedTracebackException( + type(e.__cause__), + e.__cause__, + e.__cause__.__traceback__, + limit=limit, + lookup_lines=lookup_lines, + capture_locals=capture_locals, + _seen=_seen, + ) + else: + cause = None + + if compact: + need_context = ( + cause is None and e is not None and not e.__suppress_context__ + ) + else: + need_context = True + if ( + e + and e.__context__ is not None + and need_context + and id(e.__context__) not in _seen + ): + context = PatchedTracebackException( + type(e.__context__), + e.__context__, + e.__context__.__traceback__, + limit=limit, + lookup_lines=lookup_lines, + capture_locals=capture_locals, + _seen=_seen, + ) + else: + context = None + + # Capture each of the exceptions in the ExceptionGroup along with each + # of their causes and contexts + if e and isinstance(e, BaseExceptionGroup): + exceptions = [] + for exc in e.exceptions: + texc = PatchedTracebackException( + type(exc), + exc, + exc.__traceback__, + lookup_lines=lookup_lines, + capture_locals=capture_locals, + _seen=_seen, + ) + exceptions.append(texc) + else: + exceptions = None + + te.__cause__ = cause + te.__context__ = context + te.exceptions = exceptions + if cause: + queue.append((te.__cause__, e.__cause__)) + if context: + queue.append((te.__context__, e.__context__)) + if exceptions: + queue.extend(zip(te.exceptions, e.exceptions)) + + self.__notes__ = getattr(exc_value, "__notes__", ()) + + def format(self, *, chain=True, _ctx=None): + if _ctx is None: + _ctx = _ExceptionPrintContext() + + output = [] + exc = self + if chain: + while exc: + if exc.__cause__ is not None: + chained_msg = _cause_message + chained_exc = exc.__cause__ + elif exc.__context__ is not None and not exc.__suppress_context__: + chained_msg = _context_message + chained_exc = exc.__context__ + else: + chained_msg = None + chained_exc = None + + output.append((chained_msg, exc)) + exc = chained_exc + else: + output.append((None, exc)) + + for msg, exc in reversed(output): + if msg is not None: + yield from _ctx.emit(msg) + if exc.exceptions is None: + if exc.stack: + yield from _ctx.emit("Traceback (most recent call last):\n") + yield from _ctx.emit(exc.stack.format()) + yield from _ctx.emit(exc.format_exception_only()) + elif _ctx.exception_group_depth > max_group_depth: + # exception group, but depth exceeds limit + yield from _ctx.emit(f"... (max_group_depth is {max_group_depth})\n") + else: + # format exception group + is_toplevel = _ctx.exception_group_depth == 0 + if is_toplevel: + _ctx.exception_group_depth += 1 + + if exc.stack: + yield from _ctx.emit( + "Exception Group Traceback (most recent call last):\n", + margin_char="+" if is_toplevel else None, + ) + yield from _ctx.emit(exc.stack.format()) + + yield from _ctx.emit(exc.format_exception_only()) + num_excs = len(exc.exceptions) + if num_excs <= max_group_width: + n = num_excs + else: + n = max_group_width + 1 + _ctx.need_close = False + for i in range(n): + last_exc = i == n - 1 + if last_exc: + # The closing frame may be added by a recursive call + _ctx.need_close = True + + if max_group_width is not None: + truncated = i >= max_group_width + else: + truncated = False + title = f"{i + 1}" if not truncated else "..." + yield ( + _ctx.indent() + + ("+-" if i == 0 else " ") + + f"+---------------- {title} ----------------\n" + ) + _ctx.exception_group_depth += 1 + if not truncated: + yield from exc.exceptions[i].format(chain=chain, _ctx=_ctx) + else: + remaining = num_excs - max_group_width + plural = "s" if remaining > 1 else "" + yield from _ctx.emit( + f"and {remaining} more exception{plural}\n" + ) + + if last_exc and _ctx.need_close: + yield _ctx.indent() + "+------------------------------------\n" + _ctx.need_close = False + _ctx.exception_group_depth -= 1 + + if is_toplevel: + assert _ctx.exception_group_depth == 1 + _ctx.exception_group_depth = 0 + + def format_exception_only(self): + """Format the exception part of the traceback. + The return value is a generator of strings, each ending in a newline. + Normally, the generator emits a single string; however, for + SyntaxError exceptions, it emits several lines that (when + printed) display detailed information about where the syntax + error occurred. + The message indicating which exception occurred is always the last + string in the output. + """ + if self.exc_type is None: + yield traceback._format_final_exc_line(None, self._str) + return + + stype = self.exc_type.__qualname__ + smod = self.exc_type.__module__ + if smod not in ("__main__", "builtins"): + if not isinstance(smod, str): + smod = "" + stype = smod + "." + stype + + if not issubclass(self.exc_type, SyntaxError): + yield _format_final_exc_line(stype, self._str) + elif traceback_exception_format_syntax_error is not None: + yield from traceback_exception_format_syntax_error(self, stype) + else: + yield from traceback_exception_original_format_exception_only(self) + + if isinstance(self.__notes__, collections.abc.Sequence): + for note in self.__notes__: + note = _safe_string(note, "note") + yield from [line + "\n" for line in note.split("\n")] + elif self.__notes__ is not None: + yield _safe_string(self.__notes__, "__notes__", func=repr) + + +traceback_exception_original_init = traceback.TracebackException.__init__ +traceback_exception_original_format = traceback.TracebackException.format +traceback_exception_original_format_exception_only = ( + traceback.TracebackException.format_exception_only +) +traceback_exception_format_syntax_error = getattr( + traceback.TracebackException, "_format_syntax_error", None +) +if sys.excepthook is sys.__excepthook__: + traceback.TracebackException.__init__ = ( # type: ignore[assignment] + PatchedTracebackException.__init__ + ) + traceback.TracebackException.format = ( # type: ignore[assignment] + PatchedTracebackException.format + ) + traceback.TracebackException.format_exception_only = ( # type: ignore[assignment] + PatchedTracebackException.format_exception_only + ) + sys.excepthook = exceptiongroup_excepthook + + +@singledispatch +def format_exception_only(__exc: BaseException) -> List[str]: + return list( + PatchedTracebackException( + type(__exc), __exc, None, compact=True + ).format_exception_only() + ) + + +@format_exception_only.register +def _(__exc: type, value: BaseException) -> List[str]: + return format_exception_only(value) + + +@singledispatch +def format_exception( + __exc: BaseException, + limit: Optional[int] = None, + chain: bool = True, +) -> List[str]: + return list( + PatchedTracebackException( + type(__exc), __exc, __exc.__traceback__, limit=limit, compact=True + ).format(chain=chain) + ) + + +@format_exception.register +def _( + __exc: type, + value: BaseException, + tb: TracebackType, + limit: Optional[int] = None, + chain: bool = True, +) -> List[str]: + return format_exception(value, limit, chain) + + +@singledispatch +def print_exception( + __exc: BaseException, + limit: Optional[int] = None, + file: Any = None, + chain: bool = True, +) -> None: + if file is None: + file = sys.stderr + + for line in PatchedTracebackException( + type(__exc), __exc, __exc.__traceback__, limit=limit + ).format(chain=chain): + print(line, file=file, end="") + + +@print_exception.register +def _( + __exc: type, + value: BaseException, + tb: TracebackType, + limit: Optional[int] = None, + file: Any = None, + chain: bool = True, +) -> None: + print_exception(value, limit, file, chain) + + +def print_exc( + limit: Optional[int] = None, + file: Any | None = None, + chain: bool = True, +) -> None: + value = sys.exc_info()[1] + print_exception(value, limit, file, chain) diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup/_version.py b/utils/python-venv/Lib/site-packages/exceptiongroup/_version.py new file mode 100644 index 0000000..a19b811 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/exceptiongroup/_version.py @@ -0,0 +1,5 @@ +# coding: utf-8 +# file generated by setuptools_scm +# don't change, don't track in version control +__version__ = version = '1.0.0' +__version_tuple__ = version_tuple = (1, 0, 0) diff --git a/utils/python-venv/Lib/site-packages/exceptiongroup/py.typed b/utils/python-venv/Lib/site-packages/exceptiongroup/py.typed new file mode 100644 index 0000000..e69de29 diff --git a/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/INSTALLER b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/INSTALLER new file mode 100644 index 0000000..a1b589e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/LICENSE b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/LICENSE new file mode 100644 index 0000000..31ecdfb --- /dev/null +++ b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/LICENSE @@ -0,0 +1,19 @@ + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. + diff --git a/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/METADATA b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/METADATA new file mode 100644 index 0000000..c078a75 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/METADATA @@ -0,0 +1,78 @@ +Metadata-Version: 2.1 +Name: iniconfig +Version: 1.1.1 +Summary: iniconfig: brain-dead simple config-ini parsing +Home-page: http://github.com/RonnyPfannschmidt/iniconfig +Author: Ronny Pfannschmidt, Holger Krekel +Author-email: opensource@ronnypfannschmidt.de, holger.krekel@gmail.com +License: MIT License +Platform: unix +Platform: linux +Platform: osx +Platform: cygwin +Platform: win32 +Classifier: Development Status :: 4 - Beta +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: MIT License +Classifier: Operating System :: POSIX +Classifier: Operating System :: Microsoft :: Windows +Classifier: Operating System :: MacOS :: MacOS X +Classifier: Topic :: Software Development :: Libraries +Classifier: Topic :: Utilities +Classifier: Programming Language :: Python +Classifier: Programming Language :: Python :: 2 +Classifier: Programming Language :: Python :: 3 + +iniconfig: brain-dead simple parsing of ini files +======================================================= + +iniconfig is a small and simple INI-file parser module +having a unique set of features: + +* tested against Python2.4 across to Python3.2, Jython, PyPy +* maintains order of sections and entries +* supports multi-line values with or without line-continuations +* supports "#" comments everywhere +* raises errors with proper line-numbers +* no bells and whistles like automatic substitutions +* iniconfig raises an Error if two sections have the same name. + +If you encounter issues or have feature wishes please report them to: + + http://github.com/RonnyPfannschmidt/iniconfig/issues + +Basic Example +=================================== + +If you have an ini file like this:: + + # content of example.ini + [section1] # comment + name1=value1 # comment + name1b=value1,value2 # comment + + [section2] + name2= + line1 + line2 + +then you can do:: + + >>> import iniconfig + >>> ini = iniconfig.IniConfig("example.ini") + >>> ini['section1']['name1'] # raises KeyError if not exists + 'value1' + >>> ini.get('section1', 'name1b', [], lambda x: x.split(",")) + ['value1', 'value2'] + >>> ini.get('section1', 'notexist', [], lambda x: x.split(",")) + [] + >>> [x.name for x in list(ini)] + ['section1', 'section2'] + >>> list(list(ini)[0].items()) + [('name1', 'value1'), ('name1b', 'value1,value2')] + >>> 'section1' in ini + True + >>> 'inexistendsection' in ini + False + + diff --git a/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/RECORD b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/RECORD new file mode 100644 index 0000000..bdca848 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/RECORD @@ -0,0 +1,10 @@ +iniconfig-1.1.1.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +iniconfig-1.1.1.dist-info/LICENSE,sha256=KvaAw570k_uCgwNW0dPfGstaBgM8ui3sehniHKp3qGY,1061 +iniconfig-1.1.1.dist-info/METADATA,sha256=_4-oFKpRXuZv5rzepScpXRwhq6DzqsgbnA5ZpgMUMcs,2405 +iniconfig-1.1.1.dist-info/RECORD,, +iniconfig-1.1.1.dist-info/WHEEL,sha256=ADKeyaGyKF5DwBNE0sRE5pvW-bSkFMJfBuhzZ3rceP4,110 +iniconfig-1.1.1.dist-info/top_level.txt,sha256=7KfM0fugdlToj9UW7enKXk2HYALQD8qHiyKtjhSzgN8,10 +iniconfig/__init__.py,sha256=-pBe5AF_6aAwo1CxJQ8i_zJq6ejc6IxHta7qk2tNJhY,5208 +iniconfig/__init__.pyi,sha256=-4KOctzq28ohRmTZsqlH6aylyFqsNKxYqtk1dteypi4,1205 +iniconfig/__pycache__/__init__.cpython-310.pyc,, +iniconfig/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 diff --git a/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/WHEEL b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/WHEEL new file mode 100644 index 0000000..6d38aa0 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/WHEEL @@ -0,0 +1,6 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.35.1) +Root-Is-Purelib: true +Tag: py2-none-any +Tag: py3-none-any + diff --git a/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/top_level.txt b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/top_level.txt new file mode 100644 index 0000000..9dda536 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/iniconfig-1.1.1.dist-info/top_level.txt @@ -0,0 +1 @@ +iniconfig diff --git a/utils/python-venv/Lib/site-packages/iniconfig/__init__.py b/utils/python-venv/Lib/site-packages/iniconfig/__init__.py new file mode 100644 index 0000000..6ad9eaf --- /dev/null +++ b/utils/python-venv/Lib/site-packages/iniconfig/__init__.py @@ -0,0 +1,165 @@ +""" brain-dead simple parser for ini-style files. +(C) Ronny Pfannschmidt, Holger Krekel -- MIT licensed +""" +__all__ = ['IniConfig', 'ParseError'] + +COMMENTCHARS = "#;" + + +class ParseError(Exception): + def __init__(self, path, lineno, msg): + Exception.__init__(self, path, lineno, msg) + self.path = path + self.lineno = lineno + self.msg = msg + + def __str__(self): + return "%s:%s: %s" % (self.path, self.lineno+1, self.msg) + + +class SectionWrapper(object): + def __init__(self, config, name): + self.config = config + self.name = name + + def lineof(self, name): + return self.config.lineof(self.name, name) + + def get(self, key, default=None, convert=str): + return self.config.get(self.name, key, + convert=convert, default=default) + + def __getitem__(self, key): + return self.config.sections[self.name][key] + + def __iter__(self): + section = self.config.sections.get(self.name, []) + + def lineof(key): + return self.config.lineof(self.name, key) + for name in sorted(section, key=lineof): + yield name + + def items(self): + for name in self: + yield name, self[name] + + +class IniConfig(object): + def __init__(self, path, data=None): + self.path = str(path) # convenience + if data is None: + f = open(self.path) + try: + tokens = self._parse(iter(f)) + finally: + f.close() + else: + tokens = self._parse(data.splitlines(True)) + + self._sources = {} + self.sections = {} + + for lineno, section, name, value in tokens: + if section is None: + self._raise(lineno, 'no section header defined') + self._sources[section, name] = lineno + if name is None: + if section in self.sections: + self._raise(lineno, 'duplicate section %r' % (section, )) + self.sections[section] = {} + else: + if name in self.sections[section]: + self._raise(lineno, 'duplicate name %r' % (name, )) + self.sections[section][name] = value + + def _raise(self, lineno, msg): + raise ParseError(self.path, lineno, msg) + + def _parse(self, line_iter): + result = [] + section = None + for lineno, line in enumerate(line_iter): + name, data = self._parseline(line, lineno) + # new value + if name is not None and data is not None: + result.append((lineno, section, name, data)) + # new section + elif name is not None and data is None: + if not name: + self._raise(lineno, 'empty section name') + section = name + result.append((lineno, section, None, None)) + # continuation + elif name is None and data is not None: + if not result: + self._raise(lineno, 'unexpected value continuation') + last = result.pop() + last_name, last_data = last[-2:] + if last_name is None: + self._raise(lineno, 'unexpected value continuation') + + if last_data: + data = '%s\n%s' % (last_data, data) + result.append(last[:-1] + (data,)) + return result + + def _parseline(self, line, lineno): + # blank lines + if iscommentline(line): + line = "" + else: + line = line.rstrip() + if not line: + return None, None + # section + if line[0] == '[': + realline = line + for c in COMMENTCHARS: + line = line.split(c)[0].rstrip() + if line[-1] == "]": + return line[1:-1], None + return None, realline.strip() + # value + elif not line[0].isspace(): + try: + name, value = line.split('=', 1) + if ":" in name: + raise ValueError() + except ValueError: + try: + name, value = line.split(":", 1) + except ValueError: + self._raise(lineno, 'unexpected line: %r' % line) + return name.strip(), value.strip() + # continuation + else: + return None, line.strip() + + def lineof(self, section, name=None): + lineno = self._sources.get((section, name)) + if lineno is not None: + return lineno + 1 + + def get(self, section, name, default=None, convert=str): + try: + return convert(self.sections[section][name]) + except KeyError: + return default + + def __getitem__(self, name): + if name not in self.sections: + raise KeyError(name) + return SectionWrapper(self, name) + + def __iter__(self): + for name in sorted(self.sections, key=self.lineof): + yield SectionWrapper(self, name) + + def __contains__(self, arg): + return arg in self.sections + + +def iscommentline(line): + c = line.lstrip()[:1] + return c in COMMENTCHARS diff --git a/utils/python-venv/Lib/site-packages/iniconfig/__init__.pyi b/utils/python-venv/Lib/site-packages/iniconfig/__init__.pyi new file mode 100644 index 0000000..b6284be --- /dev/null +++ b/utils/python-venv/Lib/site-packages/iniconfig/__init__.pyi @@ -0,0 +1,31 @@ +from typing import Callable, Iterator, Mapping, Optional, Tuple, TypeVar, Union +from typing_extensions import Final + +_D = TypeVar('_D') +_T = TypeVar('_T') + +class ParseError(Exception): + # Private __init__. + path: Final[str] + lineno: Final[int] + msg: Final[str] + +class SectionWrapper: + # Private __init__. + config: Final[IniConfig] + name: Final[str] + def __getitem__(self, key: str) -> str: ... + def __iter__(self) -> Iterator[str]: ... + def get(self, key: str, default: _D = ..., convert: Callable[[str], _T] = ...) -> Union[_T, _D]: ... + def items(self) -> Iterator[Tuple[str, str]]: ... + def lineof(self, name: str) -> Optional[int]: ... + +class IniConfig: + path: Final[str] + sections: Final[Mapping[str, Mapping[str, str]]] + def __init__(self, path: str, data: Optional[str] = None): ... + def __contains__(self, arg: str) -> bool: ... + def __getitem__(self, name: str) -> SectionWrapper: ... + def __iter__(self) -> Iterator[SectionWrapper]: ... + def get(self, section: str, name: str, default: _D = ..., convert: Callable[[str], _T] = ...) -> Union[_T, _D]: ... + def lineof(self, section: str, name: Optional[str] = ...) -> Optional[int]: ... diff --git a/utils/python-venv/Lib/site-packages/iniconfig/py.typed b/utils/python-venv/Lib/site-packages/iniconfig/py.typed new file mode 100644 index 0000000..e69de29 diff --git a/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/INSTALLER b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/INSTALLER new file mode 100644 index 0000000..a1b589e --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/LICENSE b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/LICENSE new file mode 100644 index 0000000..6f62d44 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/LICENSE @@ -0,0 +1,3 @@ +This software is made available under the terms of *either* of the licenses +found in LICENSE.APACHE or LICENSE.BSD. Contributions to this software is made +under the terms of *both* these licenses. diff --git a/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/LICENSE.APACHE b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/LICENSE.APACHE new file mode 100644 index 0000000..f433b1a --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/LICENSE.APACHE @@ -0,0 +1,177 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS diff --git a/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/LICENSE.BSD b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/LICENSE.BSD new file mode 100644 index 0000000..42ce7b7 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/LICENSE.BSD @@ -0,0 +1,23 @@ +Copyright (c) Donald Stufft and individual contributors. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/METADATA b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/METADATA new file mode 100644 index 0000000..358ace5 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/METADATA @@ -0,0 +1,453 @@ +Metadata-Version: 2.1 +Name: packaging +Version: 21.3 +Summary: Core utilities for Python packages +Home-page: https://github.com/pypa/packaging +Author: Donald Stufft and individual contributors +Author-email: donald@stufft.io +License: BSD-2-Clause or Apache-2.0 +Platform: UNKNOWN +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: Apache Software License +Classifier: License :: OSI Approved :: BSD License +Classifier: Programming Language :: Python +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Classifier: Programming Language :: Python :: 3.6 +Classifier: Programming Language :: Python :: 3.7 +Classifier: Programming Language :: Python :: 3.8 +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: Implementation :: CPython +Classifier: Programming Language :: Python :: Implementation :: PyPy +Requires-Python: >=3.6 +Description-Content-Type: text/x-rst +License-File: LICENSE +License-File: LICENSE.APACHE +License-File: LICENSE.BSD +Requires-Dist: pyparsing (!=3.0.5,>=2.0.2) + +packaging +========= + +.. start-intro + +Reusable core utilities for various Python Packaging +`interoperability specifications `_. + +This library provides utilities that implement the interoperability +specifications which have clearly one correct behaviour (eg: :pep:`440`) +or benefit greatly from having a single shared implementation (eg: :pep:`425`). + +.. end-intro + +The ``packaging`` project includes the following: version handling, specifiers, +markers, requirements, tags, utilities. + +Documentation +------------- + +The `documentation`_ provides information and the API for the following: + +- Version Handling +- Specifiers +- Markers +- Requirements +- Tags +- Utilities + +Installation +------------ + +Use ``pip`` to install these utilities:: + + pip install packaging + +Discussion +---------- + +If you run into bugs, you can file them in our `issue tracker`_. + +You can also join ``#pypa`` on Freenode to ask questions or get involved. + + +.. _`documentation`: https://packaging.pypa.io/ +.. _`issue tracker`: https://github.com/pypa/packaging/issues + + +Code of Conduct +--------------- + +Everyone interacting in the packaging project's codebases, issue trackers, chat +rooms, and mailing lists is expected to follow the `PSF Code of Conduct`_. + +.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md + +Contributing +------------ + +The ``CONTRIBUTING.rst`` file outlines how to contribute to this project as +well as how to report a potential security issue. The documentation for this +project also covers information about `project development`_ and `security`_. + +.. _`project development`: https://packaging.pypa.io/en/latest/development/ +.. _`security`: https://packaging.pypa.io/en/latest/security/ + +Project History +--------------- + +Please review the ``CHANGELOG.rst`` file or the `Changelog documentation`_ for +recent changes and project history. + +.. _`Changelog documentation`: https://packaging.pypa.io/en/latest/changelog/ + +Changelog +--------- + +21.3 - 2021-11-17 +~~~~~~~~~~~~~~~~~ + +* Add a ``pp3-none-any`` tag (`#311 `__) +* Replace the blank pyparsing 3 exclusion with a 3.0.5 exclusion (`#481 `__, `#486 `__) +* Fix a spelling mistake (`#479 `__) + +21.2 - 2021-10-29 +~~~~~~~~~~~~~~~~~ + +* Update documentation entry for 21.1. + +21.1 - 2021-10-29 +~~~~~~~~~~~~~~~~~ + +* Update pin to pyparsing to exclude 3.0.0. + +21.0 - 2021-07-03 +~~~~~~~~~~~~~~~~~ + +* PEP 656: musllinux support (`#411 `__) +* Drop support for Python 2.7, Python 3.4 and Python 3.5. +* Replace distutils usage with sysconfig (`#396 `__) +* Add support for zip files in ``parse_sdist_filename`` (`#429 `__) +* Use cached ``_hash`` attribute to short-circuit tag equality comparisons (`#417 `__) +* Specify the default value for the ``specifier`` argument to ``SpecifierSet`` (`#437 `__) +* Proper keyword-only "warn" argument in packaging.tags (`#403 `__) +* Correctly remove prerelease suffixes from ~= check (`#366 `__) +* Fix type hints for ``Version.post`` and ``Version.dev`` (`#393 `__) +* Use typing alias ``UnparsedVersion`` (`#398 `__) +* Improve type inference for ``packaging.specifiers.filter()`` (`#430 `__) +* Tighten the return type of ``canonicalize_version()`` (`#402 `__) + +20.9 - 2021-01-29 +~~~~~~~~~~~~~~~~~ + +* Run `isort `_ over the code base (`#377 `__) +* Add support for the ``macosx_10_*_universal2`` platform tags (`#379 `__) +* Introduce ``packaging.utils.parse_wheel_filename()`` and ``parse_sdist_filename()`` + (`#387 `__ and `#389 `__) + +20.8 - 2020-12-11 +~~~~~~~~~~~~~~~~~ + +* Revert back to setuptools for compatibility purposes for some Linux distros (`#363 `__) +* Do not insert an underscore in wheel tags when the interpreter version number + is more than 2 digits (`#372 `__) + +20.7 - 2020-11-28 +~~~~~~~~~~~~~~~~~ + +No unreleased changes. + +20.6 - 2020-11-28 +~~~~~~~~~~~~~~~~~ + +.. note:: This release was subsequently yanked, and these changes were included in 20.7. + +* Fix flit configuration, to include LICENSE files (`#357 `__) +* Make `intel` a recognized CPU architecture for the `universal` macOS platform tag (`#361 `__) +* Add some missing type hints to `packaging.requirements` (issue:`350`) + +20.5 - 2020-11-27 +~~~~~~~~~~~~~~~~~ + +* Officially support Python 3.9 (`#343 `__) +* Deprecate the ``LegacyVersion`` and ``LegacySpecifier`` classes (`#321 `__) +* Handle ``OSError`` on non-dynamic executables when attempting to resolve + the glibc version string. + +20.4 - 2020-05-19 +~~~~~~~~~~~~~~~~~ + +* Canonicalize version before comparing specifiers. (`#282 `__) +* Change type hint for ``canonicalize_name`` to return + ``packaging.utils.NormalizedName``. + This enables the use of static typing tools (like mypy) to detect mixing of + normalized and un-normalized names. + +20.3 - 2020-03-05 +~~~~~~~~~~~~~~~~~ + +* Fix changelog for 20.2. + +20.2 - 2020-03-05 +~~~~~~~~~~~~~~~~~ + +* Fix a bug that caused a 32-bit OS that runs on a 64-bit ARM CPU (e.g. ARM-v8, + aarch64), to report the wrong bitness. + +20.1 - 2020-01-24 +~~~~~~~~~~~~~~~~~~~ + +* Fix a bug caused by reuse of an exhausted iterator. (`#257 `__) + +20.0 - 2020-01-06 +~~~~~~~~~~~~~~~~~ + +* Add type hints (`#191 `__) + +* Add proper trove classifiers for PyPy support (`#198 `__) + +* Scale back depending on ``ctypes`` for manylinux support detection (`#171 `__) + +* Use ``sys.implementation.name`` where appropriate for ``packaging.tags`` (`#193 `__) + +* Expand upon the API provided by ``packaging.tags``: ``interpreter_name()``, ``mac_platforms()``, ``compatible_tags()``, ``cpython_tags()``, ``generic_tags()`` (`#187 `__) + +* Officially support Python 3.8 (`#232 `__) + +* Add ``major``, ``minor``, and ``micro`` aliases to ``packaging.version.Version`` (`#226 `__) + +* Properly mark ``packaging`` has being fully typed by adding a `py.typed` file (`#226 `__) + +19.2 - 2019-09-18 +~~~~~~~~~~~~~~~~~ + +* Remove dependency on ``attrs`` (`#178 `__, `#179 `__) + +* Use appropriate fallbacks for CPython ABI tag (`#181 `__, `#185 `__) + +* Add manylinux2014 support (`#186 `__) + +* Improve ABI detection (`#181 `__) + +* Properly handle debug wheels for Python 3.8 (`#172 `__) + +* Improve detection of debug builds on Windows (`#194 `__) + +19.1 - 2019-07-30 +~~~~~~~~~~~~~~~~~ + +* Add the ``packaging.tags`` module. (`#156 `__) + +* Correctly handle two-digit versions in ``python_version`` (`#119 `__) + + +19.0 - 2019-01-20 +~~~~~~~~~~~~~~~~~ + +* Fix string representation of PEP 508 direct URL requirements with markers. + +* Better handling of file URLs + + This allows for using ``file:///absolute/path``, which was previously + prevented due to the missing ``netloc``. + + This allows for all file URLs that ``urlunparse`` turns back into the + original URL to be valid. + + +18.0 - 2018-09-26 +~~~~~~~~~~~~~~~~~ + +* Improve error messages when invalid requirements are given. (`#129 `__) + + +17.1 - 2017-02-28 +~~~~~~~~~~~~~~~~~ + +* Fix ``utils.canonicalize_version`` when supplying non PEP 440 versions. + + +17.0 - 2017-02-28 +~~~~~~~~~~~~~~~~~ + +* Drop support for python 2.6, 3.2, and 3.3. + +* Define minimal pyparsing version to 2.0.2 (`#91 `__). + +* Add ``epoch``, ``release``, ``pre``, ``dev``, and ``post`` attributes to + ``Version`` and ``LegacyVersion`` (`#34 `__). + +* Add ``Version().is_devrelease`` and ``LegacyVersion().is_devrelease`` to + make it easy to determine if a release is a development release. + +* Add ``utils.canonicalize_version`` to canonicalize version strings or + ``Version`` instances (`#121 `__). + + +16.8 - 2016-10-29 +~~~~~~~~~~~~~~~~~ + +* Fix markers that utilize ``in`` so that they render correctly. + +* Fix an erroneous test on Python RC releases. + + +16.7 - 2016-04-23 +~~~~~~~~~~~~~~~~~ + +* Add support for the deprecated ``python_implementation`` marker which was + an undocumented setuptools marker in addition to the newer markers. + + +16.6 - 2016-03-29 +~~~~~~~~~~~~~~~~~ + +* Add support for the deprecated, PEP 345 environment markers in addition to + the newer markers. + + +16.5 - 2016-02-26 +~~~~~~~~~~~~~~~~~ + +* Fix a regression in parsing requirements with whitespaces between the comma + separators. + + +16.4 - 2016-02-22 +~~~~~~~~~~~~~~~~~ + +* Fix a regression in parsing requirements like ``foo (==4)``. + + +16.3 - 2016-02-21 +~~~~~~~~~~~~~~~~~ + +* Fix a bug where ``packaging.requirements:Requirement`` was overly strict when + matching legacy requirements. + + +16.2 - 2016-02-09 +~~~~~~~~~~~~~~~~~ + +* Add a function that implements the name canonicalization from PEP 503. + + +16.1 - 2016-02-07 +~~~~~~~~~~~~~~~~~ + +* Implement requirement specifiers from PEP 508. + + +16.0 - 2016-01-19 +~~~~~~~~~~~~~~~~~ + +* Relicense so that packaging is available under *either* the Apache License, + Version 2.0 or a 2 Clause BSD license. + +* Support installation of packaging when only distutils is available. + +* Fix ``==`` comparison when there is a prefix and a local version in play. + (`#41 `__). + +* Implement environment markers from PEP 508. + + +15.3 - 2015-08-01 +~~~~~~~~~~~~~~~~~ + +* Normalize post-release spellings for rev/r prefixes. `#35 `__ + + +15.2 - 2015-05-13 +~~~~~~~~~~~~~~~~~ + +* Fix an error where the arbitrary specifier (``===``) was not correctly + allowing pre-releases when it was being used. + +* Expose the specifier and version parts through properties on the + ``Specifier`` classes. + +* Allow iterating over the ``SpecifierSet`` to get access to all of the + ``Specifier`` instances. + +* Allow testing if a version is contained within a specifier via the ``in`` + operator. + + +15.1 - 2015-04-13 +~~~~~~~~~~~~~~~~~ + +* Fix a logic error that was causing inconsistent answers about whether or not + a pre-release was contained within a ``SpecifierSet`` or not. + + +15.0 - 2015-01-02 +~~~~~~~~~~~~~~~~~ + +* Add ``Version().is_postrelease`` and ``LegacyVersion().is_postrelease`` to + make it easy to determine if a release is a post release. + +* Add ``Version().base_version`` and ``LegacyVersion().base_version`` to make + it easy to get the public version without any pre or post release markers. + +* Support the update to PEP 440 which removed the implied ``!=V.*`` when using + either ``>V`` or ``V`` or ````) operator. + + +14.3 - 2014-11-19 +~~~~~~~~~~~~~~~~~ + +* **BACKWARDS INCOMPATIBLE** Refactor specifier support so that it can sanely + handle legacy specifiers as well as PEP 440 specifiers. + +* **BACKWARDS INCOMPATIBLE** Move the specifier support out of + ``packaging.version`` into ``packaging.specifiers``. + + +14.2 - 2014-09-10 +~~~~~~~~~~~~~~~~~ + +* Add prerelease support to ``Specifier``. +* Remove the ability to do ``item in Specifier()`` and replace it with + ``Specifier().contains(item)`` in order to allow flags that signal if a + prerelease should be accepted or not. +* Add a method ``Specifier().filter()`` which will take an iterable and returns + an iterable with items that do not match the specifier filtered out. + + +14.1 - 2014-09-08 +~~~~~~~~~~~~~~~~~ + +* Allow ``LegacyVersion`` and ``Version`` to be sorted together. +* Add ``packaging.version.parse()`` to enable easily parsing a version string + as either a ``Version`` or a ``LegacyVersion`` depending on it's PEP 440 + validity. + + +14.0 - 2014-09-05 +~~~~~~~~~~~~~~~~~ + +* Initial release. + + +.. _`master`: https://github.com/pypa/packaging/ + + diff --git a/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/RECORD b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/RECORD new file mode 100644 index 0000000..4454699 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/RECORD @@ -0,0 +1,31 @@ +packaging-21.3.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +packaging-21.3.dist-info/LICENSE,sha256=ytHvW9NA1z4HS6YU0m996spceUDD2MNIUuZcSQlobEg,197 +packaging-21.3.dist-info/LICENSE.APACHE,sha256=DVQuDIgE45qn836wDaWnYhSdxoLXgpRRKH4RuTjpRZQ,10174 +packaging-21.3.dist-info/LICENSE.BSD,sha256=tw5-m3QvHMb5SLNMFqo5_-zpQZY2S8iP8NIYDwAo-sU,1344 +packaging-21.3.dist-info/METADATA,sha256=KuKIy6qDLP3svIt6ejCbxBDhvq11ebkgUN55MeyKFyc,15147 +packaging-21.3.dist-info/RECORD,, +packaging-21.3.dist-info/WHEEL,sha256=ewwEueio1C2XeHTvT17n8dZUJgOvyCWCt0WVNLClP9o,92 +packaging-21.3.dist-info/top_level.txt,sha256=zFdHrhWnPslzsiP455HutQsqPB6v0KCtNUMtUtrefDw,10 +packaging/__about__.py,sha256=ugASIO2w1oUyH8_COqQ2X_s0rDhjbhQC3yJocD03h2c,661 +packaging/__init__.py,sha256=b9Kk5MF7KxhhLgcDmiUWukN-LatWFxPdNug0joPhHSk,497 +packaging/__pycache__/__about__.cpython-310.pyc,, +packaging/__pycache__/__init__.cpython-310.pyc,, +packaging/__pycache__/_manylinux.cpython-310.pyc,, +packaging/__pycache__/_musllinux.cpython-310.pyc,, +packaging/__pycache__/_structures.cpython-310.pyc,, +packaging/__pycache__/markers.cpython-310.pyc,, +packaging/__pycache__/requirements.cpython-310.pyc,, +packaging/__pycache__/specifiers.cpython-310.pyc,, +packaging/__pycache__/tags.cpython-310.pyc,, +packaging/__pycache__/utils.cpython-310.pyc,, +packaging/__pycache__/version.cpython-310.pyc,, +packaging/_manylinux.py,sha256=XcbiXB-qcjv3bcohp6N98TMpOP4_j3m-iOA8ptK2GWY,11488 +packaging/_musllinux.py,sha256=_KGgY_qc7vhMGpoqss25n2hiLCNKRtvz9mCrS7gkqyc,4378 +packaging/_structures.py,sha256=q3eVNmbWJGG_S0Dit_S3Ao8qQqz_5PYTXFAKBZe5yr4,1431 +packaging/markers.py,sha256=Fygi3_eZnjQ-3VJizW5AhI5wvo0Hb6RMk4DidsKpOC0,8475 +packaging/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +packaging/requirements.py,sha256=rjaGRCMepZS1mlYMjJ5Qh6rfq3gtsCRQUQmftGZ_bu8,4664 +packaging/specifiers.py,sha256=LRQ0kFsHrl5qfcFNEEJrIFYsnIHQUJXY9fIsakTrrqE,30110 +packaging/tags.py,sha256=lmsnGNiJ8C4D_Pf9PbM0qgbZvD9kmB9lpZBQUZa3R_Y,15699 +packaging/utils.py,sha256=dJjeat3BS-TYn1RrUFVwufUMasbtzLfYRoy_HXENeFQ,4200 +packaging/version.py,sha256=_fLRNrFrxYcHVfyo8vk9j8s6JM8N_xsSxVFr6RJyco8,14665 diff --git a/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/WHEEL b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/WHEEL new file mode 100644 index 0000000..5bad85f --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.37.0) +Root-Is-Purelib: true +Tag: py3-none-any + diff --git a/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/top_level.txt b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/top_level.txt new file mode 100644 index 0000000..748809f --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging-21.3.dist-info/top_level.txt @@ -0,0 +1 @@ +packaging diff --git a/utils/python-venv/Lib/site-packages/packaging/__about__.py b/utils/python-venv/Lib/site-packages/packaging/__about__.py new file mode 100644 index 0000000..3551bc2 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/__about__.py @@ -0,0 +1,26 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +__all__ = [ + "__title__", + "__summary__", + "__uri__", + "__version__", + "__author__", + "__email__", + "__license__", + "__copyright__", +] + +__title__ = "packaging" +__summary__ = "Core utilities for Python packages" +__uri__ = "https://github.com/pypa/packaging" + +__version__ = "21.3" + +__author__ = "Donald Stufft and individual contributors" +__email__ = "donald@stufft.io" + +__license__ = "BSD-2-Clause or Apache-2.0" +__copyright__ = "2014-2019 %s" % __author__ diff --git a/utils/python-venv/Lib/site-packages/packaging/__init__.py b/utils/python-venv/Lib/site-packages/packaging/__init__.py new file mode 100644 index 0000000..3c50c5d --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/__init__.py @@ -0,0 +1,25 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +from .__about__ import ( + __author__, + __copyright__, + __email__, + __license__, + __summary__, + __title__, + __uri__, + __version__, +) + +__all__ = [ + "__title__", + "__summary__", + "__uri__", + "__version__", + "__author__", + "__email__", + "__license__", + "__copyright__", +] diff --git a/utils/python-venv/Lib/site-packages/packaging/_manylinux.py b/utils/python-venv/Lib/site-packages/packaging/_manylinux.py new file mode 100644 index 0000000..4c379aa --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/_manylinux.py @@ -0,0 +1,301 @@ +import collections +import functools +import os +import re +import struct +import sys +import warnings +from typing import IO, Dict, Iterator, NamedTuple, Optional, Tuple + + +# Python does not provide platform information at sufficient granularity to +# identify the architecture of the running executable in some cases, so we +# determine it dynamically by reading the information from the running +# process. This only applies on Linux, which uses the ELF format. +class _ELFFileHeader: + # https://en.wikipedia.org/wiki/Executable_and_Linkable_Format#File_header + class _InvalidELFFileHeader(ValueError): + """ + An invalid ELF file header was found. + """ + + ELF_MAGIC_NUMBER = 0x7F454C46 + ELFCLASS32 = 1 + ELFCLASS64 = 2 + ELFDATA2LSB = 1 + ELFDATA2MSB = 2 + EM_386 = 3 + EM_S390 = 22 + EM_ARM = 40 + EM_X86_64 = 62 + EF_ARM_ABIMASK = 0xFF000000 + EF_ARM_ABI_VER5 = 0x05000000 + EF_ARM_ABI_FLOAT_HARD = 0x00000400 + + def __init__(self, file: IO[bytes]) -> None: + def unpack(fmt: str) -> int: + try: + data = file.read(struct.calcsize(fmt)) + result: Tuple[int, ...] = struct.unpack(fmt, data) + except struct.error: + raise _ELFFileHeader._InvalidELFFileHeader() + return result[0] + + self.e_ident_magic = unpack(">I") + if self.e_ident_magic != self.ELF_MAGIC_NUMBER: + raise _ELFFileHeader._InvalidELFFileHeader() + self.e_ident_class = unpack("B") + if self.e_ident_class not in {self.ELFCLASS32, self.ELFCLASS64}: + raise _ELFFileHeader._InvalidELFFileHeader() + self.e_ident_data = unpack("B") + if self.e_ident_data not in {self.ELFDATA2LSB, self.ELFDATA2MSB}: + raise _ELFFileHeader._InvalidELFFileHeader() + self.e_ident_version = unpack("B") + self.e_ident_osabi = unpack("B") + self.e_ident_abiversion = unpack("B") + self.e_ident_pad = file.read(7) + format_h = "H" + format_i = "I" + format_q = "Q" + format_p = format_i if self.e_ident_class == self.ELFCLASS32 else format_q + self.e_type = unpack(format_h) + self.e_machine = unpack(format_h) + self.e_version = unpack(format_i) + self.e_entry = unpack(format_p) + self.e_phoff = unpack(format_p) + self.e_shoff = unpack(format_p) + self.e_flags = unpack(format_i) + self.e_ehsize = unpack(format_h) + self.e_phentsize = unpack(format_h) + self.e_phnum = unpack(format_h) + self.e_shentsize = unpack(format_h) + self.e_shnum = unpack(format_h) + self.e_shstrndx = unpack(format_h) + + +def _get_elf_header() -> Optional[_ELFFileHeader]: + try: + with open(sys.executable, "rb") as f: + elf_header = _ELFFileHeader(f) + except (OSError, TypeError, _ELFFileHeader._InvalidELFFileHeader): + return None + return elf_header + + +def _is_linux_armhf() -> bool: + # hard-float ABI can be detected from the ELF header of the running + # process + # https://static.docs.arm.com/ihi0044/g/aaelf32.pdf + elf_header = _get_elf_header() + if elf_header is None: + return False + result = elf_header.e_ident_class == elf_header.ELFCLASS32 + result &= elf_header.e_ident_data == elf_header.ELFDATA2LSB + result &= elf_header.e_machine == elf_header.EM_ARM + result &= ( + elf_header.e_flags & elf_header.EF_ARM_ABIMASK + ) == elf_header.EF_ARM_ABI_VER5 + result &= ( + elf_header.e_flags & elf_header.EF_ARM_ABI_FLOAT_HARD + ) == elf_header.EF_ARM_ABI_FLOAT_HARD + return result + + +def _is_linux_i686() -> bool: + elf_header = _get_elf_header() + if elf_header is None: + return False + result = elf_header.e_ident_class == elf_header.ELFCLASS32 + result &= elf_header.e_ident_data == elf_header.ELFDATA2LSB + result &= elf_header.e_machine == elf_header.EM_386 + return result + + +def _have_compatible_abi(arch: str) -> bool: + if arch == "armv7l": + return _is_linux_armhf() + if arch == "i686": + return _is_linux_i686() + return arch in {"x86_64", "aarch64", "ppc64", "ppc64le", "s390x"} + + +# If glibc ever changes its major version, we need to know what the last +# minor version was, so we can build the complete list of all versions. +# For now, guess what the highest minor version might be, assume it will +# be 50 for testing. Once this actually happens, update the dictionary +# with the actual value. +_LAST_GLIBC_MINOR: Dict[int, int] = collections.defaultdict(lambda: 50) + + +class _GLibCVersion(NamedTuple): + major: int + minor: int + + +def _glibc_version_string_confstr() -> Optional[str]: + """ + Primary implementation of glibc_version_string using os.confstr. + """ + # os.confstr is quite a bit faster than ctypes.DLL. It's also less likely + # to be broken or missing. This strategy is used in the standard library + # platform module. + # https://github.com/python/cpython/blob/fcf1d003bf4f0100c/Lib/platform.py#L175-L183 + try: + # os.confstr("CS_GNU_LIBC_VERSION") returns a string like "glibc 2.17". + version_string = os.confstr("CS_GNU_LIBC_VERSION") + assert version_string is not None + _, version = version_string.split() + except (AssertionError, AttributeError, OSError, ValueError): + # os.confstr() or CS_GNU_LIBC_VERSION not available (or a bad value)... + return None + return version + + +def _glibc_version_string_ctypes() -> Optional[str]: + """ + Fallback implementation of glibc_version_string using ctypes. + """ + try: + import ctypes + except ImportError: + return None + + # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen + # manpage says, "If filename is NULL, then the returned handle is for the + # main program". This way we can let the linker do the work to figure out + # which libc our process is actually using. + # + # We must also handle the special case where the executable is not a + # dynamically linked executable. This can occur when using musl libc, + # for example. In this situation, dlopen() will error, leading to an + # OSError. Interestingly, at least in the case of musl, there is no + # errno set on the OSError. The single string argument used to construct + # OSError comes from libc itself and is therefore not portable to + # hard code here. In any case, failure to call dlopen() means we + # can proceed, so we bail on our attempt. + try: + process_namespace = ctypes.CDLL(None) + except OSError: + return None + + try: + gnu_get_libc_version = process_namespace.gnu_get_libc_version + except AttributeError: + # Symbol doesn't exist -> therefore, we are not linked to + # glibc. + return None + + # Call gnu_get_libc_version, which returns a string like "2.5" + gnu_get_libc_version.restype = ctypes.c_char_p + version_str: str = gnu_get_libc_version() + # py2 / py3 compatibility: + if not isinstance(version_str, str): + version_str = version_str.decode("ascii") + + return version_str + + +def _glibc_version_string() -> Optional[str]: + """Returns glibc version string, or None if not using glibc.""" + return _glibc_version_string_confstr() or _glibc_version_string_ctypes() + + +def _parse_glibc_version(version_str: str) -> Tuple[int, int]: + """Parse glibc version. + + We use a regexp instead of str.split because we want to discard any + random junk that might come after the minor version -- this might happen + in patched/forked versions of glibc (e.g. Linaro's version of glibc + uses version strings like "2.20-2014.11"). See gh-3588. + """ + m = re.match(r"(?P[0-9]+)\.(?P[0-9]+)", version_str) + if not m: + warnings.warn( + "Expected glibc version with 2 components major.minor," + " got: %s" % version_str, + RuntimeWarning, + ) + return -1, -1 + return int(m.group("major")), int(m.group("minor")) + + +@functools.lru_cache() +def _get_glibc_version() -> Tuple[int, int]: + version_str = _glibc_version_string() + if version_str is None: + return (-1, -1) + return _parse_glibc_version(version_str) + + +# From PEP 513, PEP 600 +def _is_compatible(name: str, arch: str, version: _GLibCVersion) -> bool: + sys_glibc = _get_glibc_version() + if sys_glibc < version: + return False + # Check for presence of _manylinux module. + try: + import _manylinux # noqa + except ImportError: + return True + if hasattr(_manylinux, "manylinux_compatible"): + result = _manylinux.manylinux_compatible(version[0], version[1], arch) + if result is not None: + return bool(result) + return True + if version == _GLibCVersion(2, 5): + if hasattr(_manylinux, "manylinux1_compatible"): + return bool(_manylinux.manylinux1_compatible) + if version == _GLibCVersion(2, 12): + if hasattr(_manylinux, "manylinux2010_compatible"): + return bool(_manylinux.manylinux2010_compatible) + if version == _GLibCVersion(2, 17): + if hasattr(_manylinux, "manylinux2014_compatible"): + return bool(_manylinux.manylinux2014_compatible) + return True + + +_LEGACY_MANYLINUX_MAP = { + # CentOS 7 w/ glibc 2.17 (PEP 599) + (2, 17): "manylinux2014", + # CentOS 6 w/ glibc 2.12 (PEP 571) + (2, 12): "manylinux2010", + # CentOS 5 w/ glibc 2.5 (PEP 513) + (2, 5): "manylinux1", +} + + +def platform_tags(linux: str, arch: str) -> Iterator[str]: + if not _have_compatible_abi(arch): + return + # Oldest glibc to be supported regardless of architecture is (2, 17). + too_old_glibc2 = _GLibCVersion(2, 16) + if arch in {"x86_64", "i686"}: + # On x86/i686 also oldest glibc to be supported is (2, 5). + too_old_glibc2 = _GLibCVersion(2, 4) + current_glibc = _GLibCVersion(*_get_glibc_version()) + glibc_max_list = [current_glibc] + # We can assume compatibility across glibc major versions. + # https://sourceware.org/bugzilla/show_bug.cgi?id=24636 + # + # Build a list of maximum glibc versions so that we can + # output the canonical list of all glibc from current_glibc + # down to too_old_glibc2, including all intermediary versions. + for glibc_major in range(current_glibc.major - 1, 1, -1): + glibc_minor = _LAST_GLIBC_MINOR[glibc_major] + glibc_max_list.append(_GLibCVersion(glibc_major, glibc_minor)) + for glibc_max in glibc_max_list: + if glibc_max.major == too_old_glibc2.major: + min_minor = too_old_glibc2.minor + else: + # For other glibc major versions oldest supported is (x, 0). + min_minor = -1 + for glibc_minor in range(glibc_max.minor, min_minor, -1): + glibc_version = _GLibCVersion(glibc_max.major, glibc_minor) + tag = "manylinux_{}_{}".format(*glibc_version) + if _is_compatible(tag, arch, glibc_version): + yield linux.replace("linux", tag) + # Handle the legacy manylinux1, manylinux2010, manylinux2014 tags. + if glibc_version in _LEGACY_MANYLINUX_MAP: + legacy_tag = _LEGACY_MANYLINUX_MAP[glibc_version] + if _is_compatible(legacy_tag, arch, glibc_version): + yield linux.replace("linux", legacy_tag) diff --git a/utils/python-venv/Lib/site-packages/packaging/_musllinux.py b/utils/python-venv/Lib/site-packages/packaging/_musllinux.py new file mode 100644 index 0000000..8ac3059 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/_musllinux.py @@ -0,0 +1,136 @@ +"""PEP 656 support. + +This module implements logic to detect if the currently running Python is +linked against musl, and what musl version is used. +""" + +import contextlib +import functools +import operator +import os +import re +import struct +import subprocess +import sys +from typing import IO, Iterator, NamedTuple, Optional, Tuple + + +def _read_unpacked(f: IO[bytes], fmt: str) -> Tuple[int, ...]: + return struct.unpack(fmt, f.read(struct.calcsize(fmt))) + + +def _parse_ld_musl_from_elf(f: IO[bytes]) -> Optional[str]: + """Detect musl libc location by parsing the Python executable. + + Based on: https://gist.github.com/lyssdod/f51579ae8d93c8657a5564aefc2ffbca + ELF header: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html + """ + f.seek(0) + try: + ident = _read_unpacked(f, "16B") + except struct.error: + return None + if ident[:4] != tuple(b"\x7fELF"): # Invalid magic, not ELF. + return None + f.seek(struct.calcsize("HHI"), 1) # Skip file type, machine, and version. + + try: + # e_fmt: Format for program header. + # p_fmt: Format for section header. + # p_idx: Indexes to find p_type, p_offset, and p_filesz. + e_fmt, p_fmt, p_idx = { + 1: ("IIIIHHH", "IIIIIIII", (0, 1, 4)), # 32-bit. + 2: ("QQQIHHH", "IIQQQQQQ", (0, 2, 5)), # 64-bit. + }[ident[4]] + except KeyError: + return None + else: + p_get = operator.itemgetter(*p_idx) + + # Find the interpreter section and return its content. + try: + _, e_phoff, _, _, _, e_phentsize, e_phnum = _read_unpacked(f, e_fmt) + except struct.error: + return None + for i in range(e_phnum + 1): + f.seek(e_phoff + e_phentsize * i) + try: + p_type, p_offset, p_filesz = p_get(_read_unpacked(f, p_fmt)) + except struct.error: + return None + if p_type != 3: # Not PT_INTERP. + continue + f.seek(p_offset) + interpreter = os.fsdecode(f.read(p_filesz)).strip("\0") + if "musl" not in interpreter: + return None + return interpreter + return None + + +class _MuslVersion(NamedTuple): + major: int + minor: int + + +def _parse_musl_version(output: str) -> Optional[_MuslVersion]: + lines = [n for n in (n.strip() for n in output.splitlines()) if n] + if len(lines) < 2 or lines[0][:4] != "musl": + return None + m = re.match(r"Version (\d+)\.(\d+)", lines[1]) + if not m: + return None + return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2))) + + +@functools.lru_cache() +def _get_musl_version(executable: str) -> Optional[_MuslVersion]: + """Detect currently-running musl runtime version. + + This is done by checking the specified executable's dynamic linking + information, and invoking the loader to parse its output for a version + string. If the loader is musl, the output would be something like:: + + musl libc (x86_64) + Version 1.2.2 + Dynamic Program Loader + """ + with contextlib.ExitStack() as stack: + try: + f = stack.enter_context(open(executable, "rb")) + except OSError: + return None + ld = _parse_ld_musl_from_elf(f) + if not ld: + return None + proc = subprocess.run([ld], stderr=subprocess.PIPE, universal_newlines=True) + return _parse_musl_version(proc.stderr) + + +def platform_tags(arch: str) -> Iterator[str]: + """Generate musllinux tags compatible to the current platform. + + :param arch: Should be the part of platform tag after the ``linux_`` + prefix, e.g. ``x86_64``. The ``linux_`` prefix is assumed as a + prerequisite for the current platform to be musllinux-compatible. + + :returns: An iterator of compatible musllinux tags. + """ + sys_musl = _get_musl_version(sys.executable) + if sys_musl is None: # Python not dynamically linked against musl. + return + for minor in range(sys_musl.minor, -1, -1): + yield f"musllinux_{sys_musl.major}_{minor}_{arch}" + + +if __name__ == "__main__": # pragma: no cover + import sysconfig + + plat = sysconfig.get_platform() + assert plat.startswith("linux-"), "not linux" + + print("plat:", plat) + print("musl:", _get_musl_version(sys.executable)) + print("tags:", end=" ") + for t in platform_tags(re.sub(r"[.-]", "_", plat.split("-", 1)[-1])): + print(t, end="\n ") diff --git a/utils/python-venv/Lib/site-packages/packaging/_structures.py b/utils/python-venv/Lib/site-packages/packaging/_structures.py new file mode 100644 index 0000000..90a6465 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/_structures.py @@ -0,0 +1,61 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + + +class InfinityType: + def __repr__(self) -> str: + return "Infinity" + + def __hash__(self) -> int: + return hash(repr(self)) + + def __lt__(self, other: object) -> bool: + return False + + def __le__(self, other: object) -> bool: + return False + + def __eq__(self, other: object) -> bool: + return isinstance(other, self.__class__) + + def __gt__(self, other: object) -> bool: + return True + + def __ge__(self, other: object) -> bool: + return True + + def __neg__(self: object) -> "NegativeInfinityType": + return NegativeInfinity + + +Infinity = InfinityType() + + +class NegativeInfinityType: + def __repr__(self) -> str: + return "-Infinity" + + def __hash__(self) -> int: + return hash(repr(self)) + + def __lt__(self, other: object) -> bool: + return True + + def __le__(self, other: object) -> bool: + return True + + def __eq__(self, other: object) -> bool: + return isinstance(other, self.__class__) + + def __gt__(self, other: object) -> bool: + return False + + def __ge__(self, other: object) -> bool: + return False + + def __neg__(self: object) -> InfinityType: + return Infinity + + +NegativeInfinity = NegativeInfinityType() diff --git a/utils/python-venv/Lib/site-packages/packaging/markers.py b/utils/python-venv/Lib/site-packages/packaging/markers.py new file mode 100644 index 0000000..cb640e8 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/markers.py @@ -0,0 +1,304 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +import operator +import os +import platform +import sys +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +from pyparsing import ( # noqa: N817 + Forward, + Group, + Literal as L, + ParseException, + ParseResults, + QuotedString, + ZeroOrMore, + stringEnd, + stringStart, +) + +from .specifiers import InvalidSpecifier, Specifier + +__all__ = [ + "InvalidMarker", + "UndefinedComparison", + "UndefinedEnvironmentName", + "Marker", + "default_environment", +] + +Operator = Callable[[str, str], bool] + + +class InvalidMarker(ValueError): + """ + An invalid marker was found, users should refer to PEP 508. + """ + + +class UndefinedComparison(ValueError): + """ + An invalid operation was attempted on a value that doesn't support it. + """ + + +class UndefinedEnvironmentName(ValueError): + """ + A name was attempted to be used that does not exist inside of the + environment. + """ + + +class Node: + def __init__(self, value: Any) -> None: + self.value = value + + def __str__(self) -> str: + return str(self.value) + + def __repr__(self) -> str: + return f"<{self.__class__.__name__}('{self}')>" + + def serialize(self) -> str: + raise NotImplementedError + + +class Variable(Node): + def serialize(self) -> str: + return str(self) + + +class Value(Node): + def serialize(self) -> str: + return f'"{self}"' + + +class Op(Node): + def serialize(self) -> str: + return str(self) + + +VARIABLE = ( + L("implementation_version") + | L("platform_python_implementation") + | L("implementation_name") + | L("python_full_version") + | L("platform_release") + | L("platform_version") + | L("platform_machine") + | L("platform_system") + | L("python_version") + | L("sys_platform") + | L("os_name") + | L("os.name") # PEP-345 + | L("sys.platform") # PEP-345 + | L("platform.version") # PEP-345 + | L("platform.machine") # PEP-345 + | L("platform.python_implementation") # PEP-345 + | L("python_implementation") # undocumented setuptools legacy + | L("extra") # PEP-508 +) +ALIASES = { + "os.name": "os_name", + "sys.platform": "sys_platform", + "platform.version": "platform_version", + "platform.machine": "platform_machine", + "platform.python_implementation": "platform_python_implementation", + "python_implementation": "platform_python_implementation", +} +VARIABLE.setParseAction(lambda s, l, t: Variable(ALIASES.get(t[0], t[0]))) + +VERSION_CMP = ( + L("===") | L("==") | L(">=") | L("<=") | L("!=") | L("~=") | L(">") | L("<") +) + +MARKER_OP = VERSION_CMP | L("not in") | L("in") +MARKER_OP.setParseAction(lambda s, l, t: Op(t[0])) + +MARKER_VALUE = QuotedString("'") | QuotedString('"') +MARKER_VALUE.setParseAction(lambda s, l, t: Value(t[0])) + +BOOLOP = L("and") | L("or") + +MARKER_VAR = VARIABLE | MARKER_VALUE + +MARKER_ITEM = Group(MARKER_VAR + MARKER_OP + MARKER_VAR) +MARKER_ITEM.setParseAction(lambda s, l, t: tuple(t[0])) + +LPAREN = L("(").suppress() +RPAREN = L(")").suppress() + +MARKER_EXPR = Forward() +MARKER_ATOM = MARKER_ITEM | Group(LPAREN + MARKER_EXPR + RPAREN) +MARKER_EXPR << MARKER_ATOM + ZeroOrMore(BOOLOP + MARKER_EXPR) + +MARKER = stringStart + MARKER_EXPR + stringEnd + + +def _coerce_parse_result(results: Union[ParseResults, List[Any]]) -> List[Any]: + if isinstance(results, ParseResults): + return [_coerce_parse_result(i) for i in results] + else: + return results + + +def _format_marker( + marker: Union[List[str], Tuple[Node, ...], str], first: Optional[bool] = True +) -> str: + + assert isinstance(marker, (list, tuple, str)) + + # Sometimes we have a structure like [[...]] which is a single item list + # where the single item is itself it's own list. In that case we want skip + # the rest of this function so that we don't get extraneous () on the + # outside. + if ( + isinstance(marker, list) + and len(marker) == 1 + and isinstance(marker[0], (list, tuple)) + ): + return _format_marker(marker[0]) + + if isinstance(marker, list): + inner = (_format_marker(m, first=False) for m in marker) + if first: + return " ".join(inner) + else: + return "(" + " ".join(inner) + ")" + elif isinstance(marker, tuple): + return " ".join([m.serialize() for m in marker]) + else: + return marker + + +_operators: Dict[str, Operator] = { + "in": lambda lhs, rhs: lhs in rhs, + "not in": lambda lhs, rhs: lhs not in rhs, + "<": operator.lt, + "<=": operator.le, + "==": operator.eq, + "!=": operator.ne, + ">=": operator.ge, + ">": operator.gt, +} + + +def _eval_op(lhs: str, op: Op, rhs: str) -> bool: + try: + spec = Specifier("".join([op.serialize(), rhs])) + except InvalidSpecifier: + pass + else: + return spec.contains(lhs) + + oper: Optional[Operator] = _operators.get(op.serialize()) + if oper is None: + raise UndefinedComparison(f"Undefined {op!r} on {lhs!r} and {rhs!r}.") + + return oper(lhs, rhs) + + +class Undefined: + pass + + +_undefined = Undefined() + + +def _get_env(environment: Dict[str, str], name: str) -> str: + value: Union[str, Undefined] = environment.get(name, _undefined) + + if isinstance(value, Undefined): + raise UndefinedEnvironmentName( + f"{name!r} does not exist in evaluation environment." + ) + + return value + + +def _evaluate_markers(markers: List[Any], environment: Dict[str, str]) -> bool: + groups: List[List[bool]] = [[]] + + for marker in markers: + assert isinstance(marker, (list, tuple, str)) + + if isinstance(marker, list): + groups[-1].append(_evaluate_markers(marker, environment)) + elif isinstance(marker, tuple): + lhs, op, rhs = marker + + if isinstance(lhs, Variable): + lhs_value = _get_env(environment, lhs.value) + rhs_value = rhs.value + else: + lhs_value = lhs.value + rhs_value = _get_env(environment, rhs.value) + + groups[-1].append(_eval_op(lhs_value, op, rhs_value)) + else: + assert marker in ["and", "or"] + if marker == "or": + groups.append([]) + + return any(all(item) for item in groups) + + +def format_full_version(info: "sys._version_info") -> str: + version = "{0.major}.{0.minor}.{0.micro}".format(info) + kind = info.releaselevel + if kind != "final": + version += kind[0] + str(info.serial) + return version + + +def default_environment() -> Dict[str, str]: + iver = format_full_version(sys.implementation.version) + implementation_name = sys.implementation.name + return { + "implementation_name": implementation_name, + "implementation_version": iver, + "os_name": os.name, + "platform_machine": platform.machine(), + "platform_release": platform.release(), + "platform_system": platform.system(), + "platform_version": platform.version(), + "python_full_version": platform.python_version(), + "platform_python_implementation": platform.python_implementation(), + "python_version": ".".join(platform.python_version_tuple()[:2]), + "sys_platform": sys.platform, + } + + +class Marker: + def __init__(self, marker: str) -> None: + try: + self._markers = _coerce_parse_result(MARKER.parseString(marker)) + except ParseException as e: + raise InvalidMarker( + f"Invalid marker: {marker!r}, parse error at " + f"{marker[e.loc : e.loc + 8]!r}" + ) + + def __str__(self) -> str: + return _format_marker(self._markers) + + def __repr__(self) -> str: + return f"" + + def evaluate(self, environment: Optional[Dict[str, str]] = None) -> bool: + """Evaluate a marker. + + Return the boolean from evaluating the given marker against the + environment. environment is an optional argument to override all or + part of the determined environment. + + The environment is determined from the current Python process. + """ + current_environment = default_environment() + if environment is not None: + current_environment.update(environment) + + return _evaluate_markers(self._markers, current_environment) diff --git a/utils/python-venv/Lib/site-packages/packaging/py.typed b/utils/python-venv/Lib/site-packages/packaging/py.typed new file mode 100644 index 0000000..e69de29 diff --git a/utils/python-venv/Lib/site-packages/packaging/requirements.py b/utils/python-venv/Lib/site-packages/packaging/requirements.py new file mode 100644 index 0000000..53f9a3a --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/requirements.py @@ -0,0 +1,146 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +import re +import string +import urllib.parse +from typing import List, Optional as TOptional, Set + +from pyparsing import ( # noqa + Combine, + Literal as L, + Optional, + ParseException, + Regex, + Word, + ZeroOrMore, + originalTextFor, + stringEnd, + stringStart, +) + +from .markers import MARKER_EXPR, Marker +from .specifiers import LegacySpecifier, Specifier, SpecifierSet + + +class InvalidRequirement(ValueError): + """ + An invalid requirement was found, users should refer to PEP 508. + """ + + +ALPHANUM = Word(string.ascii_letters + string.digits) + +LBRACKET = L("[").suppress() +RBRACKET = L("]").suppress() +LPAREN = L("(").suppress() +RPAREN = L(")").suppress() +COMMA = L(",").suppress() +SEMICOLON = L(";").suppress() +AT = L("@").suppress() + +PUNCTUATION = Word("-_.") +IDENTIFIER_END = ALPHANUM | (ZeroOrMore(PUNCTUATION) + ALPHANUM) +IDENTIFIER = Combine(ALPHANUM + ZeroOrMore(IDENTIFIER_END)) + +NAME = IDENTIFIER("name") +EXTRA = IDENTIFIER + +URI = Regex(r"[^ ]+")("url") +URL = AT + URI + +EXTRAS_LIST = EXTRA + ZeroOrMore(COMMA + EXTRA) +EXTRAS = (LBRACKET + Optional(EXTRAS_LIST) + RBRACKET)("extras") + +VERSION_PEP440 = Regex(Specifier._regex_str, re.VERBOSE | re.IGNORECASE) +VERSION_LEGACY = Regex(LegacySpecifier._regex_str, re.VERBOSE | re.IGNORECASE) + +VERSION_ONE = VERSION_PEP440 ^ VERSION_LEGACY +VERSION_MANY = Combine( + VERSION_ONE + ZeroOrMore(COMMA + VERSION_ONE), joinString=",", adjacent=False +)("_raw_spec") +_VERSION_SPEC = Optional((LPAREN + VERSION_MANY + RPAREN) | VERSION_MANY) +_VERSION_SPEC.setParseAction(lambda s, l, t: t._raw_spec or "") + +VERSION_SPEC = originalTextFor(_VERSION_SPEC)("specifier") +VERSION_SPEC.setParseAction(lambda s, l, t: t[1]) + +MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker") +MARKER_EXPR.setParseAction( + lambda s, l, t: Marker(s[t._original_start : t._original_end]) +) +MARKER_SEPARATOR = SEMICOLON +MARKER = MARKER_SEPARATOR + MARKER_EXPR + +VERSION_AND_MARKER = VERSION_SPEC + Optional(MARKER) +URL_AND_MARKER = URL + Optional(MARKER) + +NAMED_REQUIREMENT = NAME + Optional(EXTRAS) + (URL_AND_MARKER | VERSION_AND_MARKER) + +REQUIREMENT = stringStart + NAMED_REQUIREMENT + stringEnd +# pyparsing isn't thread safe during initialization, so we do it eagerly, see +# issue #104 +REQUIREMENT.parseString("x[]") + + +class Requirement: + """Parse a requirement. + + Parse a given requirement string into its parts, such as name, specifier, + URL, and extras. Raises InvalidRequirement on a badly-formed requirement + string. + """ + + # TODO: Can we test whether something is contained within a requirement? + # If so how do we do that? Do we need to test against the _name_ of + # the thing as well as the version? What about the markers? + # TODO: Can we normalize the name and extra name? + + def __init__(self, requirement_string: str) -> None: + try: + req = REQUIREMENT.parseString(requirement_string) + except ParseException as e: + raise InvalidRequirement( + f'Parse error at "{ requirement_string[e.loc : e.loc + 8]!r}": {e.msg}' + ) + + self.name: str = req.name + if req.url: + parsed_url = urllib.parse.urlparse(req.url) + if parsed_url.scheme == "file": + if urllib.parse.urlunparse(parsed_url) != req.url: + raise InvalidRequirement("Invalid URL given") + elif not (parsed_url.scheme and parsed_url.netloc) or ( + not parsed_url.scheme and not parsed_url.netloc + ): + raise InvalidRequirement(f"Invalid URL: {req.url}") + self.url: TOptional[str] = req.url + else: + self.url = None + self.extras: Set[str] = set(req.extras.asList() if req.extras else []) + self.specifier: SpecifierSet = SpecifierSet(req.specifier) + self.marker: TOptional[Marker] = req.marker if req.marker else None + + def __str__(self) -> str: + parts: List[str] = [self.name] + + if self.extras: + formatted_extras = ",".join(sorted(self.extras)) + parts.append(f"[{formatted_extras}]") + + if self.specifier: + parts.append(str(self.specifier)) + + if self.url: + parts.append(f"@ {self.url}") + if self.marker: + parts.append(" ") + + if self.marker: + parts.append(f"; {self.marker}") + + return "".join(parts) + + def __repr__(self) -> str: + return f"" diff --git a/utils/python-venv/Lib/site-packages/packaging/specifiers.py b/utils/python-venv/Lib/site-packages/packaging/specifiers.py new file mode 100644 index 0000000..0e218a6 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/specifiers.py @@ -0,0 +1,802 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +import abc +import functools +import itertools +import re +import warnings +from typing import ( + Callable, + Dict, + Iterable, + Iterator, + List, + Optional, + Pattern, + Set, + Tuple, + TypeVar, + Union, +) + +from .utils import canonicalize_version +from .version import LegacyVersion, Version, parse + +ParsedVersion = Union[Version, LegacyVersion] +UnparsedVersion = Union[Version, LegacyVersion, str] +VersionTypeVar = TypeVar("VersionTypeVar", bound=UnparsedVersion) +CallableOperator = Callable[[ParsedVersion, str], bool] + + +class InvalidSpecifier(ValueError): + """ + An invalid specifier was found, users should refer to PEP 440. + """ + + +class BaseSpecifier(metaclass=abc.ABCMeta): + @abc.abstractmethod + def __str__(self) -> str: + """ + Returns the str representation of this Specifier like object. This + should be representative of the Specifier itself. + """ + + @abc.abstractmethod + def __hash__(self) -> int: + """ + Returns a hash value for this Specifier like object. + """ + + @abc.abstractmethod + def __eq__(self, other: object) -> bool: + """ + Returns a boolean representing whether or not the two Specifier like + objects are equal. + """ + + @abc.abstractproperty + def prereleases(self) -> Optional[bool]: + """ + Returns whether or not pre-releases as a whole are allowed by this + specifier. + """ + + @prereleases.setter + def prereleases(self, value: bool) -> None: + """ + Sets whether or not pre-releases as a whole are allowed by this + specifier. + """ + + @abc.abstractmethod + def contains(self, item: str, prereleases: Optional[bool] = None) -> bool: + """ + Determines if the given item is contained within this specifier. + """ + + @abc.abstractmethod + def filter( + self, iterable: Iterable[VersionTypeVar], prereleases: Optional[bool] = None + ) -> Iterable[VersionTypeVar]: + """ + Takes an iterable of items and filters them so that only items which + are contained within this specifier are allowed in it. + """ + + +class _IndividualSpecifier(BaseSpecifier): + + _operators: Dict[str, str] = {} + _regex: Pattern[str] + + def __init__(self, spec: str = "", prereleases: Optional[bool] = None) -> None: + match = self._regex.search(spec) + if not match: + raise InvalidSpecifier(f"Invalid specifier: '{spec}'") + + self._spec: Tuple[str, str] = ( + match.group("operator").strip(), + match.group("version").strip(), + ) + + # Store whether or not this Specifier should accept prereleases + self._prereleases = prereleases + + def __repr__(self) -> str: + pre = ( + f", prereleases={self.prereleases!r}" + if self._prereleases is not None + else "" + ) + + return f"<{self.__class__.__name__}({str(self)!r}{pre})>" + + def __str__(self) -> str: + return "{}{}".format(*self._spec) + + @property + def _canonical_spec(self) -> Tuple[str, str]: + return self._spec[0], canonicalize_version(self._spec[1]) + + def __hash__(self) -> int: + return hash(self._canonical_spec) + + def __eq__(self, other: object) -> bool: + if isinstance(other, str): + try: + other = self.__class__(str(other)) + except InvalidSpecifier: + return NotImplemented + elif not isinstance(other, self.__class__): + return NotImplemented + + return self._canonical_spec == other._canonical_spec + + def _get_operator(self, op: str) -> CallableOperator: + operator_callable: CallableOperator = getattr( + self, f"_compare_{self._operators[op]}" + ) + return operator_callable + + def _coerce_version(self, version: UnparsedVersion) -> ParsedVersion: + if not isinstance(version, (LegacyVersion, Version)): + version = parse(version) + return version + + @property + def operator(self) -> str: + return self._spec[0] + + @property + def version(self) -> str: + return self._spec[1] + + @property + def prereleases(self) -> Optional[bool]: + return self._prereleases + + @prereleases.setter + def prereleases(self, value: bool) -> None: + self._prereleases = value + + def __contains__(self, item: str) -> bool: + return self.contains(item) + + def contains( + self, item: UnparsedVersion, prereleases: Optional[bool] = None + ) -> bool: + + # Determine if prereleases are to be allowed or not. + if prereleases is None: + prereleases = self.prereleases + + # Normalize item to a Version or LegacyVersion, this allows us to have + # a shortcut for ``"2.0" in Specifier(">=2") + normalized_item = self._coerce_version(item) + + # Determine if we should be supporting prereleases in this specifier + # or not, if we do not support prereleases than we can short circuit + # logic if this version is a prereleases. + if normalized_item.is_prerelease and not prereleases: + return False + + # Actually do the comparison to determine if this item is contained + # within this Specifier or not. + operator_callable: CallableOperator = self._get_operator(self.operator) + return operator_callable(normalized_item, self.version) + + def filter( + self, iterable: Iterable[VersionTypeVar], prereleases: Optional[bool] = None + ) -> Iterable[VersionTypeVar]: + + yielded = False + found_prereleases = [] + + kw = {"prereleases": prereleases if prereleases is not None else True} + + # Attempt to iterate over all the values in the iterable and if any of + # them match, yield them. + for version in iterable: + parsed_version = self._coerce_version(version) + + if self.contains(parsed_version, **kw): + # If our version is a prerelease, and we were not set to allow + # prereleases, then we'll store it for later in case nothing + # else matches this specifier. + if parsed_version.is_prerelease and not ( + prereleases or self.prereleases + ): + found_prereleases.append(version) + # Either this is not a prerelease, or we should have been + # accepting prereleases from the beginning. + else: + yielded = True + yield version + + # Now that we've iterated over everything, determine if we've yielded + # any values, and if we have not and we have any prereleases stored up + # then we will go ahead and yield the prereleases. + if not yielded and found_prereleases: + for version in found_prereleases: + yield version + + +class LegacySpecifier(_IndividualSpecifier): + + _regex_str = r""" + (?P(==|!=|<=|>=|<|>)) + \s* + (?P + [^,;\s)]* # Since this is a "legacy" specifier, and the version + # string can be just about anything, we match everything + # except for whitespace, a semi-colon for marker support, + # a closing paren since versions can be enclosed in + # them, and a comma since it's a version separator. + ) + """ + + _regex = re.compile(r"^\s*" + _regex_str + r"\s*$", re.VERBOSE | re.IGNORECASE) + + _operators = { + "==": "equal", + "!=": "not_equal", + "<=": "less_than_equal", + ">=": "greater_than_equal", + "<": "less_than", + ">": "greater_than", + } + + def __init__(self, spec: str = "", prereleases: Optional[bool] = None) -> None: + super().__init__(spec, prereleases) + + warnings.warn( + "Creating a LegacyVersion has been deprecated and will be " + "removed in the next major release", + DeprecationWarning, + ) + + def _coerce_version(self, version: UnparsedVersion) -> LegacyVersion: + if not isinstance(version, LegacyVersion): + version = LegacyVersion(str(version)) + return version + + def _compare_equal(self, prospective: LegacyVersion, spec: str) -> bool: + return prospective == self._coerce_version(spec) + + def _compare_not_equal(self, prospective: LegacyVersion, spec: str) -> bool: + return prospective != self._coerce_version(spec) + + def _compare_less_than_equal(self, prospective: LegacyVersion, spec: str) -> bool: + return prospective <= self._coerce_version(spec) + + def _compare_greater_than_equal( + self, prospective: LegacyVersion, spec: str + ) -> bool: + return prospective >= self._coerce_version(spec) + + def _compare_less_than(self, prospective: LegacyVersion, spec: str) -> bool: + return prospective < self._coerce_version(spec) + + def _compare_greater_than(self, prospective: LegacyVersion, spec: str) -> bool: + return prospective > self._coerce_version(spec) + + +def _require_version_compare( + fn: Callable[["Specifier", ParsedVersion, str], bool] +) -> Callable[["Specifier", ParsedVersion, str], bool]: + @functools.wraps(fn) + def wrapped(self: "Specifier", prospective: ParsedVersion, spec: str) -> bool: + if not isinstance(prospective, Version): + return False + return fn(self, prospective, spec) + + return wrapped + + +class Specifier(_IndividualSpecifier): + + _regex_str = r""" + (?P(~=|==|!=|<=|>=|<|>|===)) + (?P + (?: + # The identity operators allow for an escape hatch that will + # do an exact string match of the version you wish to install. + # This will not be parsed by PEP 440 and we cannot determine + # any semantic meaning from it. This operator is discouraged + # but included entirely as an escape hatch. + (?<====) # Only match for the identity operator + \s* + [^\s]* # We just match everything, except for whitespace + # since we are only testing for strict identity. + ) + | + (?: + # The (non)equality operators allow for wild card and local + # versions to be specified so we have to define these two + # operators separately to enable that. + (?<===|!=) # Only match for equals and not equals + + \s* + v? + (?:[0-9]+!)? # epoch + [0-9]+(?:\.[0-9]+)* # release + (?: # pre release + [-_\.]? + (a|b|c|rc|alpha|beta|pre|preview) + [-_\.]? + [0-9]* + )? + (?: # post release + (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*) + )? + + # You cannot use a wild card and a dev or local version + # together so group them with a | and make them optional. + (?: + (?:[-_\.]?dev[-_\.]?[0-9]*)? # dev release + (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local + | + \.\* # Wild card syntax of .* + )? + ) + | + (?: + # The compatible operator requires at least two digits in the + # release segment. + (?<=~=) # Only match for the compatible operator + + \s* + v? + (?:[0-9]+!)? # epoch + [0-9]+(?:\.[0-9]+)+ # release (We have a + instead of a *) + (?: # pre release + [-_\.]? + (a|b|c|rc|alpha|beta|pre|preview) + [-_\.]? + [0-9]* + )? + (?: # post release + (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*) + )? + (?:[-_\.]?dev[-_\.]?[0-9]*)? # dev release + ) + | + (?: + # All other operators only allow a sub set of what the + # (non)equality operators do. Specifically they do not allow + # local versions to be specified nor do they allow the prefix + # matching wild cards. + (?=": "greater_than_equal", + "<": "less_than", + ">": "greater_than", + "===": "arbitrary", + } + + @_require_version_compare + def _compare_compatible(self, prospective: ParsedVersion, spec: str) -> bool: + + # Compatible releases have an equivalent combination of >= and ==. That + # is that ~=2.2 is equivalent to >=2.2,==2.*. This allows us to + # implement this in terms of the other specifiers instead of + # implementing it ourselves. The only thing we need to do is construct + # the other specifiers. + + # We want everything but the last item in the version, but we want to + # ignore suffix segments. + prefix = ".".join( + list(itertools.takewhile(_is_not_suffix, _version_split(spec)))[:-1] + ) + + # Add the prefix notation to the end of our string + prefix += ".*" + + return self._get_operator(">=")(prospective, spec) and self._get_operator("==")( + prospective, prefix + ) + + @_require_version_compare + def _compare_equal(self, prospective: ParsedVersion, spec: str) -> bool: + + # We need special logic to handle prefix matching + if spec.endswith(".*"): + # In the case of prefix matching we want to ignore local segment. + prospective = Version(prospective.public) + # Split the spec out by dots, and pretend that there is an implicit + # dot in between a release segment and a pre-release segment. + split_spec = _version_split(spec[:-2]) # Remove the trailing .* + + # Split the prospective version out by dots, and pretend that there + # is an implicit dot in between a release segment and a pre-release + # segment. + split_prospective = _version_split(str(prospective)) + + # Shorten the prospective version to be the same length as the spec + # so that we can determine if the specifier is a prefix of the + # prospective version or not. + shortened_prospective = split_prospective[: len(split_spec)] + + # Pad out our two sides with zeros so that they both equal the same + # length. + padded_spec, padded_prospective = _pad_version( + split_spec, shortened_prospective + ) + + return padded_prospective == padded_spec + else: + # Convert our spec string into a Version + spec_version = Version(spec) + + # If the specifier does not have a local segment, then we want to + # act as if the prospective version also does not have a local + # segment. + if not spec_version.local: + prospective = Version(prospective.public) + + return prospective == spec_version + + @_require_version_compare + def _compare_not_equal(self, prospective: ParsedVersion, spec: str) -> bool: + return not self._compare_equal(prospective, spec) + + @_require_version_compare + def _compare_less_than_equal(self, prospective: ParsedVersion, spec: str) -> bool: + + # NB: Local version identifiers are NOT permitted in the version + # specifier, so local version labels can be universally removed from + # the prospective version. + return Version(prospective.public) <= Version(spec) + + @_require_version_compare + def _compare_greater_than_equal( + self, prospective: ParsedVersion, spec: str + ) -> bool: + + # NB: Local version identifiers are NOT permitted in the version + # specifier, so local version labels can be universally removed from + # the prospective version. + return Version(prospective.public) >= Version(spec) + + @_require_version_compare + def _compare_less_than(self, prospective: ParsedVersion, spec_str: str) -> bool: + + # Convert our spec to a Version instance, since we'll want to work with + # it as a version. + spec = Version(spec_str) + + # Check to see if the prospective version is less than the spec + # version. If it's not we can short circuit and just return False now + # instead of doing extra unneeded work. + if not prospective < spec: + return False + + # This special case is here so that, unless the specifier itself + # includes is a pre-release version, that we do not accept pre-release + # versions for the version mentioned in the specifier (e.g. <3.1 should + # not match 3.1.dev0, but should match 3.0.dev0). + if not spec.is_prerelease and prospective.is_prerelease: + if Version(prospective.base_version) == Version(spec.base_version): + return False + + # If we've gotten to here, it means that prospective version is both + # less than the spec version *and* it's not a pre-release of the same + # version in the spec. + return True + + @_require_version_compare + def _compare_greater_than(self, prospective: ParsedVersion, spec_str: str) -> bool: + + # Convert our spec to a Version instance, since we'll want to work with + # it as a version. + spec = Version(spec_str) + + # Check to see if the prospective version is greater than the spec + # version. If it's not we can short circuit and just return False now + # instead of doing extra unneeded work. + if not prospective > spec: + return False + + # This special case is here so that, unless the specifier itself + # includes is a post-release version, that we do not accept + # post-release versions for the version mentioned in the specifier + # (e.g. >3.1 should not match 3.0.post0, but should match 3.2.post0). + if not spec.is_postrelease and prospective.is_postrelease: + if Version(prospective.base_version) == Version(spec.base_version): + return False + + # Ensure that we do not allow a local version of the version mentioned + # in the specifier, which is technically greater than, to match. + if prospective.local is not None: + if Version(prospective.base_version) == Version(spec.base_version): + return False + + # If we've gotten to here, it means that prospective version is both + # greater than the spec version *and* it's not a pre-release of the + # same version in the spec. + return True + + def _compare_arbitrary(self, prospective: Version, spec: str) -> bool: + return str(prospective).lower() == str(spec).lower() + + @property + def prereleases(self) -> bool: + + # If there is an explicit prereleases set for this, then we'll just + # blindly use that. + if self._prereleases is not None: + return self._prereleases + + # Look at all of our specifiers and determine if they are inclusive + # operators, and if they are if they are including an explicit + # prerelease. + operator, version = self._spec + if operator in ["==", ">=", "<=", "~=", "==="]: + # The == specifier can include a trailing .*, if it does we + # want to remove before parsing. + if operator == "==" and version.endswith(".*"): + version = version[:-2] + + # Parse the version, and if it is a pre-release than this + # specifier allows pre-releases. + if parse(version).is_prerelease: + return True + + return False + + @prereleases.setter + def prereleases(self, value: bool) -> None: + self._prereleases = value + + +_prefix_regex = re.compile(r"^([0-9]+)((?:a|b|c|rc)[0-9]+)$") + + +def _version_split(version: str) -> List[str]: + result: List[str] = [] + for item in version.split("."): + match = _prefix_regex.search(item) + if match: + result.extend(match.groups()) + else: + result.append(item) + return result + + +def _is_not_suffix(segment: str) -> bool: + return not any( + segment.startswith(prefix) for prefix in ("dev", "a", "b", "rc", "post") + ) + + +def _pad_version(left: List[str], right: List[str]) -> Tuple[List[str], List[str]]: + left_split, right_split = [], [] + + # Get the release segment of our versions + left_split.append(list(itertools.takewhile(lambda x: x.isdigit(), left))) + right_split.append(list(itertools.takewhile(lambda x: x.isdigit(), right))) + + # Get the rest of our versions + left_split.append(left[len(left_split[0]) :]) + right_split.append(right[len(right_split[0]) :]) + + # Insert our padding + left_split.insert(1, ["0"] * max(0, len(right_split[0]) - len(left_split[0]))) + right_split.insert(1, ["0"] * max(0, len(left_split[0]) - len(right_split[0]))) + + return (list(itertools.chain(*left_split)), list(itertools.chain(*right_split))) + + +class SpecifierSet(BaseSpecifier): + def __init__( + self, specifiers: str = "", prereleases: Optional[bool] = None + ) -> None: + + # Split on , to break each individual specifier into it's own item, and + # strip each item to remove leading/trailing whitespace. + split_specifiers = [s.strip() for s in specifiers.split(",") if s.strip()] + + # Parsed each individual specifier, attempting first to make it a + # Specifier and falling back to a LegacySpecifier. + parsed: Set[_IndividualSpecifier] = set() + for specifier in split_specifiers: + try: + parsed.add(Specifier(specifier)) + except InvalidSpecifier: + parsed.add(LegacySpecifier(specifier)) + + # Turn our parsed specifiers into a frozen set and save them for later. + self._specs = frozenset(parsed) + + # Store our prereleases value so we can use it later to determine if + # we accept prereleases or not. + self._prereleases = prereleases + + def __repr__(self) -> str: + pre = ( + f", prereleases={self.prereleases!r}" + if self._prereleases is not None + else "" + ) + + return f"" + + def __str__(self) -> str: + return ",".join(sorted(str(s) for s in self._specs)) + + def __hash__(self) -> int: + return hash(self._specs) + + def __and__(self, other: Union["SpecifierSet", str]) -> "SpecifierSet": + if isinstance(other, str): + other = SpecifierSet(other) + elif not isinstance(other, SpecifierSet): + return NotImplemented + + specifier = SpecifierSet() + specifier._specs = frozenset(self._specs | other._specs) + + if self._prereleases is None and other._prereleases is not None: + specifier._prereleases = other._prereleases + elif self._prereleases is not None and other._prereleases is None: + specifier._prereleases = self._prereleases + elif self._prereleases == other._prereleases: + specifier._prereleases = self._prereleases + else: + raise ValueError( + "Cannot combine SpecifierSets with True and False prerelease " + "overrides." + ) + + return specifier + + def __eq__(self, other: object) -> bool: + if isinstance(other, (str, _IndividualSpecifier)): + other = SpecifierSet(str(other)) + elif not isinstance(other, SpecifierSet): + return NotImplemented + + return self._specs == other._specs + + def __len__(self) -> int: + return len(self._specs) + + def __iter__(self) -> Iterator[_IndividualSpecifier]: + return iter(self._specs) + + @property + def prereleases(self) -> Optional[bool]: + + # If we have been given an explicit prerelease modifier, then we'll + # pass that through here. + if self._prereleases is not None: + return self._prereleases + + # If we don't have any specifiers, and we don't have a forced value, + # then we'll just return None since we don't know if this should have + # pre-releases or not. + if not self._specs: + return None + + # Otherwise we'll see if any of the given specifiers accept + # prereleases, if any of them do we'll return True, otherwise False. + return any(s.prereleases for s in self._specs) + + @prereleases.setter + def prereleases(self, value: bool) -> None: + self._prereleases = value + + def __contains__(self, item: UnparsedVersion) -> bool: + return self.contains(item) + + def contains( + self, item: UnparsedVersion, prereleases: Optional[bool] = None + ) -> bool: + + # Ensure that our item is a Version or LegacyVersion instance. + if not isinstance(item, (LegacyVersion, Version)): + item = parse(item) + + # Determine if we're forcing a prerelease or not, if we're not forcing + # one for this particular filter call, then we'll use whatever the + # SpecifierSet thinks for whether or not we should support prereleases. + if prereleases is None: + prereleases = self.prereleases + + # We can determine if we're going to allow pre-releases by looking to + # see if any of the underlying items supports them. If none of them do + # and this item is a pre-release then we do not allow it and we can + # short circuit that here. + # Note: This means that 1.0.dev1 would not be contained in something + # like >=1.0.devabc however it would be in >=1.0.debabc,>0.0.dev0 + if not prereleases and item.is_prerelease: + return False + + # We simply dispatch to the underlying specs here to make sure that the + # given version is contained within all of them. + # Note: This use of all() here means that an empty set of specifiers + # will always return True, this is an explicit design decision. + return all(s.contains(item, prereleases=prereleases) for s in self._specs) + + def filter( + self, iterable: Iterable[VersionTypeVar], prereleases: Optional[bool] = None + ) -> Iterable[VersionTypeVar]: + + # Determine if we're forcing a prerelease or not, if we're not forcing + # one for this particular filter call, then we'll use whatever the + # SpecifierSet thinks for whether or not we should support prereleases. + if prereleases is None: + prereleases = self.prereleases + + # If we have any specifiers, then we want to wrap our iterable in the + # filter method for each one, this will act as a logical AND amongst + # each specifier. + if self._specs: + for spec in self._specs: + iterable = spec.filter(iterable, prereleases=bool(prereleases)) + return iterable + # If we do not have any specifiers, then we need to have a rough filter + # which will filter out any pre-releases, unless there are no final + # releases, and which will filter out LegacyVersion in general. + else: + filtered: List[VersionTypeVar] = [] + found_prereleases: List[VersionTypeVar] = [] + + item: UnparsedVersion + parsed_version: Union[Version, LegacyVersion] + + for item in iterable: + # Ensure that we some kind of Version class for this item. + if not isinstance(item, (LegacyVersion, Version)): + parsed_version = parse(item) + else: + parsed_version = item + + # Filter out any item which is parsed as a LegacyVersion + if isinstance(parsed_version, LegacyVersion): + continue + + # Store any item which is a pre-release for later unless we've + # already found a final version or we are accepting prereleases + if parsed_version.is_prerelease and not prereleases: + if not filtered: + found_prereleases.append(item) + else: + filtered.append(item) + + # If we've found no items except for pre-releases, then we'll go + # ahead and use the pre-releases + if not filtered and found_prereleases and prereleases is None: + return found_prereleases + + return filtered diff --git a/utils/python-venv/Lib/site-packages/packaging/tags.py b/utils/python-venv/Lib/site-packages/packaging/tags.py new file mode 100644 index 0000000..9a3d25a --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/tags.py @@ -0,0 +1,487 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +import logging +import platform +import sys +import sysconfig +from importlib.machinery import EXTENSION_SUFFIXES +from typing import ( + Dict, + FrozenSet, + Iterable, + Iterator, + List, + Optional, + Sequence, + Tuple, + Union, + cast, +) + +from . import _manylinux, _musllinux + +logger = logging.getLogger(__name__) + +PythonVersion = Sequence[int] +MacVersion = Tuple[int, int] + +INTERPRETER_SHORT_NAMES: Dict[str, str] = { + "python": "py", # Generic. + "cpython": "cp", + "pypy": "pp", + "ironpython": "ip", + "jython": "jy", +} + + +_32_BIT_INTERPRETER = sys.maxsize <= 2 ** 32 + + +class Tag: + """ + A representation of the tag triple for a wheel. + + Instances are considered immutable and thus are hashable. Equality checking + is also supported. + """ + + __slots__ = ["_interpreter", "_abi", "_platform", "_hash"] + + def __init__(self, interpreter: str, abi: str, platform: str) -> None: + self._interpreter = interpreter.lower() + self._abi = abi.lower() + self._platform = platform.lower() + # The __hash__ of every single element in a Set[Tag] will be evaluated each time + # that a set calls its `.disjoint()` method, which may be called hundreds of + # times when scanning a page of links for packages with tags matching that + # Set[Tag]. Pre-computing the value here produces significant speedups for + # downstream consumers. + self._hash = hash((self._interpreter, self._abi, self._platform)) + + @property + def interpreter(self) -> str: + return self._interpreter + + @property + def abi(self) -> str: + return self._abi + + @property + def platform(self) -> str: + return self._platform + + def __eq__(self, other: object) -> bool: + if not isinstance(other, Tag): + return NotImplemented + + return ( + (self._hash == other._hash) # Short-circuit ASAP for perf reasons. + and (self._platform == other._platform) + and (self._abi == other._abi) + and (self._interpreter == other._interpreter) + ) + + def __hash__(self) -> int: + return self._hash + + def __str__(self) -> str: + return f"{self._interpreter}-{self._abi}-{self._platform}" + + def __repr__(self) -> str: + return f"<{self} @ {id(self)}>" + + +def parse_tag(tag: str) -> FrozenSet[Tag]: + """ + Parses the provided tag (e.g. `py3-none-any`) into a frozenset of Tag instances. + + Returning a set is required due to the possibility that the tag is a + compressed tag set. + """ + tags = set() + interpreters, abis, platforms = tag.split("-") + for interpreter in interpreters.split("."): + for abi in abis.split("."): + for platform_ in platforms.split("."): + tags.add(Tag(interpreter, abi, platform_)) + return frozenset(tags) + + +def _get_config_var(name: str, warn: bool = False) -> Union[int, str, None]: + value = sysconfig.get_config_var(name) + if value is None and warn: + logger.debug( + "Config variable '%s' is unset, Python ABI tag may be incorrect", name + ) + return value + + +def _normalize_string(string: str) -> str: + return string.replace(".", "_").replace("-", "_") + + +def _abi3_applies(python_version: PythonVersion) -> bool: + """ + Determine if the Python version supports abi3. + + PEP 384 was first implemented in Python 3.2. + """ + return len(python_version) > 1 and tuple(python_version) >= (3, 2) + + +def _cpython_abis(py_version: PythonVersion, warn: bool = False) -> List[str]: + py_version = tuple(py_version) # To allow for version comparison. + abis = [] + version = _version_nodot(py_version[:2]) + debug = pymalloc = ucs4 = "" + with_debug = _get_config_var("Py_DEBUG", warn) + has_refcount = hasattr(sys, "gettotalrefcount") + # Windows doesn't set Py_DEBUG, so checking for support of debug-compiled + # extension modules is the best option. + # https://github.com/pypa/pip/issues/3383#issuecomment-173267692 + has_ext = "_d.pyd" in EXTENSION_SUFFIXES + if with_debug or (with_debug is None and (has_refcount or has_ext)): + debug = "d" + if py_version < (3, 8): + with_pymalloc = _get_config_var("WITH_PYMALLOC", warn) + if with_pymalloc or with_pymalloc is None: + pymalloc = "m" + if py_version < (3, 3): + unicode_size = _get_config_var("Py_UNICODE_SIZE", warn) + if unicode_size == 4 or ( + unicode_size is None and sys.maxunicode == 0x10FFFF + ): + ucs4 = "u" + elif debug: + # Debug builds can also load "normal" extension modules. + # We can also assume no UCS-4 or pymalloc requirement. + abis.append(f"cp{version}") + abis.insert( + 0, + "cp{version}{debug}{pymalloc}{ucs4}".format( + version=version, debug=debug, pymalloc=pymalloc, ucs4=ucs4 + ), + ) + return abis + + +def cpython_tags( + python_version: Optional[PythonVersion] = None, + abis: Optional[Iterable[str]] = None, + platforms: Optional[Iterable[str]] = None, + *, + warn: bool = False, +) -> Iterator[Tag]: + """ + Yields the tags for a CPython interpreter. + + The tags consist of: + - cp-- + - cp-abi3- + - cp-none- + - cp-abi3- # Older Python versions down to 3.2. + + If python_version only specifies a major version then user-provided ABIs and + the 'none' ABItag will be used. + + If 'abi3' or 'none' are specified in 'abis' then they will be yielded at + their normal position and not at the beginning. + """ + if not python_version: + python_version = sys.version_info[:2] + + interpreter = f"cp{_version_nodot(python_version[:2])}" + + if abis is None: + if len(python_version) > 1: + abis = _cpython_abis(python_version, warn) + else: + abis = [] + abis = list(abis) + # 'abi3' and 'none' are explicitly handled later. + for explicit_abi in ("abi3", "none"): + try: + abis.remove(explicit_abi) + except ValueError: + pass + + platforms = list(platforms or platform_tags()) + for abi in abis: + for platform_ in platforms: + yield Tag(interpreter, abi, platform_) + if _abi3_applies(python_version): + yield from (Tag(interpreter, "abi3", platform_) for platform_ in platforms) + yield from (Tag(interpreter, "none", platform_) for platform_ in platforms) + + if _abi3_applies(python_version): + for minor_version in range(python_version[1] - 1, 1, -1): + for platform_ in platforms: + interpreter = "cp{version}".format( + version=_version_nodot((python_version[0], minor_version)) + ) + yield Tag(interpreter, "abi3", platform_) + + +def _generic_abi() -> Iterator[str]: + abi = sysconfig.get_config_var("SOABI") + if abi: + yield _normalize_string(abi) + + +def generic_tags( + interpreter: Optional[str] = None, + abis: Optional[Iterable[str]] = None, + platforms: Optional[Iterable[str]] = None, + *, + warn: bool = False, +) -> Iterator[Tag]: + """ + Yields the tags for a generic interpreter. + + The tags consist of: + - -- + + The "none" ABI will be added if it was not explicitly provided. + """ + if not interpreter: + interp_name = interpreter_name() + interp_version = interpreter_version(warn=warn) + interpreter = "".join([interp_name, interp_version]) + if abis is None: + abis = _generic_abi() + platforms = list(platforms or platform_tags()) + abis = list(abis) + if "none" not in abis: + abis.append("none") + for abi in abis: + for platform_ in platforms: + yield Tag(interpreter, abi, platform_) + + +def _py_interpreter_range(py_version: PythonVersion) -> Iterator[str]: + """ + Yields Python versions in descending order. + + After the latest version, the major-only version will be yielded, and then + all previous versions of that major version. + """ + if len(py_version) > 1: + yield f"py{_version_nodot(py_version[:2])}" + yield f"py{py_version[0]}" + if len(py_version) > 1: + for minor in range(py_version[1] - 1, -1, -1): + yield f"py{_version_nodot((py_version[0], minor))}" + + +def compatible_tags( + python_version: Optional[PythonVersion] = None, + interpreter: Optional[str] = None, + platforms: Optional[Iterable[str]] = None, +) -> Iterator[Tag]: + """ + Yields the sequence of tags that are compatible with a specific version of Python. + + The tags consist of: + - py*-none- + - -none-any # ... if `interpreter` is provided. + - py*-none-any + """ + if not python_version: + python_version = sys.version_info[:2] + platforms = list(platforms or platform_tags()) + for version in _py_interpreter_range(python_version): + for platform_ in platforms: + yield Tag(version, "none", platform_) + if interpreter: + yield Tag(interpreter, "none", "any") + for version in _py_interpreter_range(python_version): + yield Tag(version, "none", "any") + + +def _mac_arch(arch: str, is_32bit: bool = _32_BIT_INTERPRETER) -> str: + if not is_32bit: + return arch + + if arch.startswith("ppc"): + return "ppc" + + return "i386" + + +def _mac_binary_formats(version: MacVersion, cpu_arch: str) -> List[str]: + formats = [cpu_arch] + if cpu_arch == "x86_64": + if version < (10, 4): + return [] + formats.extend(["intel", "fat64", "fat32"]) + + elif cpu_arch == "i386": + if version < (10, 4): + return [] + formats.extend(["intel", "fat32", "fat"]) + + elif cpu_arch == "ppc64": + # TODO: Need to care about 32-bit PPC for ppc64 through 10.2? + if version > (10, 5) or version < (10, 4): + return [] + formats.append("fat64") + + elif cpu_arch == "ppc": + if version > (10, 6): + return [] + formats.extend(["fat32", "fat"]) + + if cpu_arch in {"arm64", "x86_64"}: + formats.append("universal2") + + if cpu_arch in {"x86_64", "i386", "ppc64", "ppc", "intel"}: + formats.append("universal") + + return formats + + +def mac_platforms( + version: Optional[MacVersion] = None, arch: Optional[str] = None +) -> Iterator[str]: + """ + Yields the platform tags for a macOS system. + + The `version` parameter is a two-item tuple specifying the macOS version to + generate platform tags for. The `arch` parameter is the CPU architecture to + generate platform tags for. Both parameters default to the appropriate value + for the current system. + """ + version_str, _, cpu_arch = platform.mac_ver() + if version is None: + version = cast("MacVersion", tuple(map(int, version_str.split(".")[:2]))) + else: + version = version + if arch is None: + arch = _mac_arch(cpu_arch) + else: + arch = arch + + if (10, 0) <= version and version < (11, 0): + # Prior to Mac OS 11, each yearly release of Mac OS bumped the + # "minor" version number. The major version was always 10. + for minor_version in range(version[1], -1, -1): + compat_version = 10, minor_version + binary_formats = _mac_binary_formats(compat_version, arch) + for binary_format in binary_formats: + yield "macosx_{major}_{minor}_{binary_format}".format( + major=10, minor=minor_version, binary_format=binary_format + ) + + if version >= (11, 0): + # Starting with Mac OS 11, each yearly release bumps the major version + # number. The minor versions are now the midyear updates. + for major_version in range(version[0], 10, -1): + compat_version = major_version, 0 + binary_formats = _mac_binary_formats(compat_version, arch) + for binary_format in binary_formats: + yield "macosx_{major}_{minor}_{binary_format}".format( + major=major_version, minor=0, binary_format=binary_format + ) + + if version >= (11, 0): + # Mac OS 11 on x86_64 is compatible with binaries from previous releases. + # Arm64 support was introduced in 11.0, so no Arm binaries from previous + # releases exist. + # + # However, the "universal2" binary format can have a + # macOS version earlier than 11.0 when the x86_64 part of the binary supports + # that version of macOS. + if arch == "x86_64": + for minor_version in range(16, 3, -1): + compat_version = 10, minor_version + binary_formats = _mac_binary_formats(compat_version, arch) + for binary_format in binary_formats: + yield "macosx_{major}_{minor}_{binary_format}".format( + major=compat_version[0], + minor=compat_version[1], + binary_format=binary_format, + ) + else: + for minor_version in range(16, 3, -1): + compat_version = 10, minor_version + binary_format = "universal2" + yield "macosx_{major}_{minor}_{binary_format}".format( + major=compat_version[0], + minor=compat_version[1], + binary_format=binary_format, + ) + + +def _linux_platforms(is_32bit: bool = _32_BIT_INTERPRETER) -> Iterator[str]: + linux = _normalize_string(sysconfig.get_platform()) + if is_32bit: + if linux == "linux_x86_64": + linux = "linux_i686" + elif linux == "linux_aarch64": + linux = "linux_armv7l" + _, arch = linux.split("_", 1) + yield from _manylinux.platform_tags(linux, arch) + yield from _musllinux.platform_tags(arch) + yield linux + + +def _generic_platforms() -> Iterator[str]: + yield _normalize_string(sysconfig.get_platform()) + + +def platform_tags() -> Iterator[str]: + """ + Provides the platform tags for this installation. + """ + if platform.system() == "Darwin": + return mac_platforms() + elif platform.system() == "Linux": + return _linux_platforms() + else: + return _generic_platforms() + + +def interpreter_name() -> str: + """ + Returns the name of the running interpreter. + """ + name = sys.implementation.name + return INTERPRETER_SHORT_NAMES.get(name) or name + + +def interpreter_version(*, warn: bool = False) -> str: + """ + Returns the version of the running interpreter. + """ + version = _get_config_var("py_version_nodot", warn=warn) + if version: + version = str(version) + else: + version = _version_nodot(sys.version_info[:2]) + return version + + +def _version_nodot(version: PythonVersion) -> str: + return "".join(map(str, version)) + + +def sys_tags(*, warn: bool = False) -> Iterator[Tag]: + """ + Returns the sequence of tag triples for the running interpreter. + + The order of the sequence corresponds to priority order for the + interpreter, from most to least important. + """ + + interp_name = interpreter_name() + if interp_name == "cp": + yield from cpython_tags(warn=warn) + else: + yield from generic_tags() + + if interp_name == "pp": + yield from compatible_tags(interpreter="pp3") + else: + yield from compatible_tags() diff --git a/utils/python-venv/Lib/site-packages/packaging/utils.py b/utils/python-venv/Lib/site-packages/packaging/utils.py new file mode 100644 index 0000000..bab11b8 --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/utils.py @@ -0,0 +1,136 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +import re +from typing import FrozenSet, NewType, Tuple, Union, cast + +from .tags import Tag, parse_tag +from .version import InvalidVersion, Version + +BuildTag = Union[Tuple[()], Tuple[int, str]] +NormalizedName = NewType("NormalizedName", str) + + +class InvalidWheelFilename(ValueError): + """ + An invalid wheel filename was found, users should refer to PEP 427. + """ + + +class InvalidSdistFilename(ValueError): + """ + An invalid sdist filename was found, users should refer to the packaging user guide. + """ + + +_canonicalize_regex = re.compile(r"[-_.]+") +# PEP 427: The build number must start with a digit. +_build_tag_regex = re.compile(r"(\d+)(.*)") + + +def canonicalize_name(name: str) -> NormalizedName: + # This is taken from PEP 503. + value = _canonicalize_regex.sub("-", name).lower() + return cast(NormalizedName, value) + + +def canonicalize_version(version: Union[Version, str]) -> str: + """ + This is very similar to Version.__str__, but has one subtle difference + with the way it handles the release segment. + """ + if isinstance(version, str): + try: + parsed = Version(version) + except InvalidVersion: + # Legacy versions cannot be normalized + return version + else: + parsed = version + + parts = [] + + # Epoch + if parsed.epoch != 0: + parts.append(f"{parsed.epoch}!") + + # Release segment + # NB: This strips trailing '.0's to normalize + parts.append(re.sub(r"(\.0)+$", "", ".".join(str(x) for x in parsed.release))) + + # Pre-release + if parsed.pre is not None: + parts.append("".join(str(x) for x in parsed.pre)) + + # Post-release + if parsed.post is not None: + parts.append(f".post{parsed.post}") + + # Development release + if parsed.dev is not None: + parts.append(f".dev{parsed.dev}") + + # Local version segment + if parsed.local is not None: + parts.append(f"+{parsed.local}") + + return "".join(parts) + + +def parse_wheel_filename( + filename: str, +) -> Tuple[NormalizedName, Version, BuildTag, FrozenSet[Tag]]: + if not filename.endswith(".whl"): + raise InvalidWheelFilename( + f"Invalid wheel filename (extension must be '.whl'): {filename}" + ) + + filename = filename[:-4] + dashes = filename.count("-") + if dashes not in (4, 5): + raise InvalidWheelFilename( + f"Invalid wheel filename (wrong number of parts): {filename}" + ) + + parts = filename.split("-", dashes - 2) + name_part = parts[0] + # See PEP 427 for the rules on escaping the project name + if "__" in name_part or re.match(r"^[\w\d._]*$", name_part, re.UNICODE) is None: + raise InvalidWheelFilename(f"Invalid project name: {filename}") + name = canonicalize_name(name_part) + version = Version(parts[1]) + if dashes == 5: + build_part = parts[2] + build_match = _build_tag_regex.match(build_part) + if build_match is None: + raise InvalidWheelFilename( + f"Invalid build number: {build_part} in '{filename}'" + ) + build = cast(BuildTag, (int(build_match.group(1)), build_match.group(2))) + else: + build = () + tags = parse_tag(parts[-1]) + return (name, version, build, tags) + + +def parse_sdist_filename(filename: str) -> Tuple[NormalizedName, Version]: + if filename.endswith(".tar.gz"): + file_stem = filename[: -len(".tar.gz")] + elif filename.endswith(".zip"): + file_stem = filename[: -len(".zip")] + else: + raise InvalidSdistFilename( + f"Invalid sdist filename (extension must be '.tar.gz' or '.zip'):" + f" {filename}" + ) + + # We are requiring a PEP 440 version, which cannot contain dashes, + # so we split on the last dash. + name_part, sep, version_part = file_stem.rpartition("-") + if not sep: + raise InvalidSdistFilename(f"Invalid sdist filename: {filename}") + + name = canonicalize_name(name_part) + version = Version(version_part) + return (name, version) diff --git a/utils/python-venv/Lib/site-packages/packaging/version.py b/utils/python-venv/Lib/site-packages/packaging/version.py new file mode 100644 index 0000000..de9a09a --- /dev/null +++ b/utils/python-venv/Lib/site-packages/packaging/version.py @@ -0,0 +1,504 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +import collections +import itertools +import re +import warnings +from typing import Callable, Iterator, List, Optional, SupportsInt, Tuple, Union + +from ._structures import Infinity, InfinityType, NegativeInfinity, NegativeInfinityType + +__all__ = ["parse", "Version", "LegacyVersion", "InvalidVersion", "VERSION_PATTERN"] + +InfiniteTypes = Union[InfinityType, NegativeInfinityType] +PrePostDevType = Union[InfiniteTypes, Tuple[str, int]] +SubLocalType = Union[InfiniteTypes, int, str] +LocalType = Union[ + NegativeInfinityType, + Tuple[ + Union[ + SubLocalType, + Tuple[SubLocalType, str], + Tuple[NegativeInfinityType, SubLocalType], + ], + ..., + ], +] +CmpKey = Tuple[ + int, Tuple[int, ...], PrePostDevType, PrePostDevType, PrePostDevType, LocalType +] +LegacyCmpKey = Tuple[int, Tuple[str, ...]] +VersionComparisonMethod = Callable[ + [Union[CmpKey, LegacyCmpKey], Union[CmpKey, LegacyCmpKey]], bool +] + +_Version = collections.namedtuple( + "_Version", ["epoch", "release", "dev", "pre", "post", "local"] +) + + +def parse(version: str) -> Union["LegacyVersion", "Version"]: + """ + Parse the given version string and return either a :class:`Version` object + or a :class:`LegacyVersion` object depending on if the given version is + a valid PEP 440 version or a legacy version. + """ + try: + return Version(version) + except InvalidVersion: + return LegacyVersion(version) + + +class InvalidVersion(ValueError): + """ + An invalid version was found, users should refer to PEP 440. + """ + + +class _BaseVersion: + _key: Union[CmpKey, LegacyCmpKey] + + def __hash__(self) -> int: + return hash(self._key) + + # Please keep the duplicated `isinstance` check + # in the six comparisons hereunder + # unless you find a way to avoid adding overhead function calls. + def __lt__(self, other: "_BaseVersion") -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key < other._key + + def __le__(self, other: "_BaseVersion") -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key <= other._key + + def __eq__(self, other: object) -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key == other._key + + def __ge__(self, other: "_BaseVersion") -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key >= other._key + + def __gt__(self, other: "_BaseVersion") -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key > other._key + + def __ne__(self, other: object) -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key != other._key + + +class LegacyVersion(_BaseVersion): + def __init__(self, version: str) -> None: + self._version = str(version) + self._key = _legacy_cmpkey(self._version) + + warnings.warn( + "Creating a LegacyVersion has been deprecated and will be " + "removed in the next major release", + DeprecationWarning, + ) + + def __str__(self) -> str: + return self._version + + def __repr__(self) -> str: + return f"" + + @property + def public(self) -> str: + return self._version + + @property + def base_version(self) -> str: + return self._version + + @property + def epoch(self) -> int: + return -1 + + @property + def release(self) -> None: + return None + + @property + def pre(self) -> None: + return None + + @property + def post(self) -> None: + return None + + @property + def dev(self) -> None: + return None + + @property + def local(self) -> None: + return None + + @property + def is_prerelease(self) -> bool: + return False + + @property + def is_postrelease(self) -> bool: + return False + + @property + def is_devrelease(self) -> bool: + return False + + +_legacy_version_component_re = re.compile(r"(\d+ | [a-z]+ | \.| -)", re.VERBOSE) + +_legacy_version_replacement_map = { + "pre": "c", + "preview": "c", + "-": "final-", + "rc": "c", + "dev": "@", +} + + +def _parse_version_parts(s: str) -> Iterator[str]: + for part in _legacy_version_component_re.split(s): + part = _legacy_version_replacement_map.get(part, part) + + if not part or part == ".": + continue + + if part[:1] in "0123456789": + # pad for numeric comparison + yield part.zfill(8) + else: + yield "*" + part + + # ensure that alpha/beta/candidate are before final + yield "*final" + + +def _legacy_cmpkey(version: str) -> LegacyCmpKey: + + # We hardcode an epoch of -1 here. A PEP 440 version can only have a epoch + # greater than or equal to 0. This will effectively put the LegacyVersion, + # which uses the defacto standard originally implemented by setuptools, + # as before all PEP 440 versions. + epoch = -1 + + # This scheme is taken from pkg_resources.parse_version setuptools prior to + # it's adoption of the packaging library. + parts: List[str] = [] + for part in _parse_version_parts(version.lower()): + if part.startswith("*"): + # remove "-" before a prerelease tag + if part < "*final": + while parts and parts[-1] == "*final-": + parts.pop() + + # remove trailing zeros from each series of numeric parts + while parts and parts[-1] == "00000000": + parts.pop() + + parts.append(part) + + return epoch, tuple(parts) + + +# Deliberately not anchored to the start and end of the string, to make it +# easier for 3rd party code to reuse +VERSION_PATTERN = r""" + v? + (?: + (?:(?P[0-9]+)!)? # epoch + (?P[0-9]+(?:\.[0-9]+)*) # release segment + (?P
                                          # pre-release
+            [-_\.]?
+            (?P(a|b|c|rc|alpha|beta|pre|preview))
+            [-_\.]?
+            (?P[0-9]+)?
+        )?
+        (?P                                         # post release
+            (?:-(?P[0-9]+))
+            |
+            (?:
+                [-_\.]?
+                (?Ppost|rev|r)
+                [-_\.]?
+                (?P[0-9]+)?
+            )
+        )?
+        (?P                                          # dev release
+            [-_\.]?
+            (?Pdev)
+            [-_\.]?
+            (?P[0-9]+)?
+        )?
+    )
+    (?:\+(?P[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?       # local version
+"""
+
+
+class Version(_BaseVersion):
+
+    _regex = re.compile(r"^\s*" + VERSION_PATTERN + r"\s*$", re.VERBOSE | re.IGNORECASE)
+
+    def __init__(self, version: str) -> None:
+
+        # Validate the version and parse it into pieces
+        match = self._regex.search(version)
+        if not match:
+            raise InvalidVersion(f"Invalid version: '{version}'")
+
+        # Store the parsed out pieces of the version
+        self._version = _Version(
+            epoch=int(match.group("epoch")) if match.group("epoch") else 0,
+            release=tuple(int(i) for i in match.group("release").split(".")),
+            pre=_parse_letter_version(match.group("pre_l"), match.group("pre_n")),
+            post=_parse_letter_version(
+                match.group("post_l"), match.group("post_n1") or match.group("post_n2")
+            ),
+            dev=_parse_letter_version(match.group("dev_l"), match.group("dev_n")),
+            local=_parse_local_version(match.group("local")),
+        )
+
+        # Generate a key which will be used for sorting
+        self._key = _cmpkey(
+            self._version.epoch,
+            self._version.release,
+            self._version.pre,
+            self._version.post,
+            self._version.dev,
+            self._version.local,
+        )
+
+    def __repr__(self) -> str:
+        return f""
+
+    def __str__(self) -> str:
+        parts = []
+
+        # Epoch
+        if self.epoch != 0:
+            parts.append(f"{self.epoch}!")
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self.release))
+
+        # Pre-release
+        if self.pre is not None:
+            parts.append("".join(str(x) for x in self.pre))
+
+        # Post-release
+        if self.post is not None:
+            parts.append(f".post{self.post}")
+
+        # Development release
+        if self.dev is not None:
+            parts.append(f".dev{self.dev}")
+
+        # Local version segment
+        if self.local is not None:
+            parts.append(f"+{self.local}")
+
+        return "".join(parts)
+
+    @property
+    def epoch(self) -> int:
+        _epoch: int = self._version.epoch
+        return _epoch
+
+    @property
+    def release(self) -> Tuple[int, ...]:
+        _release: Tuple[int, ...] = self._version.release
+        return _release
+
+    @property
+    def pre(self) -> Optional[Tuple[str, int]]:
+        _pre: Optional[Tuple[str, int]] = self._version.pre
+        return _pre
+
+    @property
+    def post(self) -> Optional[int]:
+        return self._version.post[1] if self._version.post else None
+
+    @property
+    def dev(self) -> Optional[int]:
+        return self._version.dev[1] if self._version.dev else None
+
+    @property
+    def local(self) -> Optional[str]:
+        if self._version.local:
+            return ".".join(str(x) for x in self._version.local)
+        else:
+            return None
+
+    @property
+    def public(self) -> str:
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self) -> str:
+        parts = []
+
+        # Epoch
+        if self.epoch != 0:
+            parts.append(f"{self.epoch}!")
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self.release))
+
+        return "".join(parts)
+
+    @property
+    def is_prerelease(self) -> bool:
+        return self.dev is not None or self.pre is not None
+
+    @property
+    def is_postrelease(self) -> bool:
+        return self.post is not None
+
+    @property
+    def is_devrelease(self) -> bool:
+        return self.dev is not None
+
+    @property
+    def major(self) -> int:
+        return self.release[0] if len(self.release) >= 1 else 0
+
+    @property
+    def minor(self) -> int:
+        return self.release[1] if len(self.release) >= 2 else 0
+
+    @property
+    def micro(self) -> int:
+        return self.release[2] if len(self.release) >= 3 else 0
+
+
+def _parse_letter_version(
+    letter: str, number: Union[str, bytes, SupportsInt]
+) -> Optional[Tuple[str, int]]:
+
+    if letter:
+        # We consider there to be an implicit 0 in a pre-release if there is
+        # not a numeral associated with it.
+        if number is None:
+            number = 0
+
+        # We normalize any letters to their lower case form
+        letter = letter.lower()
+
+        # We consider some words to be alternate spellings of other words and
+        # in those cases we want to normalize the spellings to our preferred
+        # spelling.
+        if letter == "alpha":
+            letter = "a"
+        elif letter == "beta":
+            letter = "b"
+        elif letter in ["c", "pre", "preview"]:
+            letter = "rc"
+        elif letter in ["rev", "r"]:
+            letter = "post"
+
+        return letter, int(number)
+    if not letter and number:
+        # We assume if we are given a number, but we are not given a letter
+        # then this is using the implicit post release syntax (e.g. 1.0-1)
+        letter = "post"
+
+        return letter, int(number)
+
+    return None
+
+
+_local_version_separators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local: str) -> Optional[LocalType]:
+    """
+    Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve").
+    """
+    if local is not None:
+        return tuple(
+            part.lower() if not part.isdigit() else int(part)
+            for part in _local_version_separators.split(local)
+        )
+    return None
+
+
+def _cmpkey(
+    epoch: int,
+    release: Tuple[int, ...],
+    pre: Optional[Tuple[str, int]],
+    post: Optional[Tuple[str, int]],
+    dev: Optional[Tuple[str, int]],
+    local: Optional[Tuple[SubLocalType]],
+) -> CmpKey:
+
+    # When we compare a release version, we want to compare it with all of the
+    # trailing zeros removed. So we'll use a reverse the list, drop all the now
+    # leading zeros until we come to something non zero, then take the rest
+    # re-reverse it back into the correct order and make it a tuple and use
+    # that for our sorting key.
+    _release = tuple(
+        reversed(list(itertools.dropwhile(lambda x: x == 0, reversed(release))))
+    )
+
+    # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.
+    # We'll do this by abusing the pre segment, but we _only_ want to do this
+    # if there is not a pre or a post segment. If we have one of those then
+    # the normal sorting rules will handle this case correctly.
+    if pre is None and post is None and dev is not None:
+        _pre: PrePostDevType = NegativeInfinity
+    # Versions without a pre-release (except as noted above) should sort after
+    # those with one.
+    elif pre is None:
+        _pre = Infinity
+    else:
+        _pre = pre
+
+    # Versions without a post segment should sort before those with one.
+    if post is None:
+        _post: PrePostDevType = NegativeInfinity
+
+    else:
+        _post = post
+
+    # Versions without a development segment should sort after those with one.
+    if dev is None:
+        _dev: PrePostDevType = Infinity
+
+    else:
+        _dev = dev
+
+    if local is None:
+        # Versions without a local segment should sort before those with one.
+        _local: LocalType = NegativeInfinity
+    else:
+        # Versions with a local segment need that segment parsed to implement
+        # the sorting rules in PEP440.
+        # - Alpha numeric segments sort before numeric segments
+        # - Alpha numeric segments sort lexicographically
+        # - Numeric segments sort numerically
+        # - Shorter versions sort before longer versions when the prefixes
+        #   match exactly
+        _local = tuple(
+            (i, "") if isinstance(i, int) else (NegativeInfinity, i) for i in local
+        )
+
+    return epoch, _release, _pre, _post, _dev, _local
diff --git a/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/INSTALLER b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/LICENSE.txt b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/LICENSE.txt
new file mode 100644
index 0000000..00addc2
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/LICENSE.txt
@@ -0,0 +1,20 @@
+Copyright (c) 2008-2021 The pip developers (see AUTHORS.txt file)
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/METADATA b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/METADATA
new file mode 100644
index 0000000..9d031ed
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/METADATA
@@ -0,0 +1,93 @@
+Metadata-Version: 2.1
+Name: pip
+Version: 21.3.1
+Summary: The PyPA recommended tool for installing Python packages.
+Home-page: https://pip.pypa.io/
+Author: The pip developers
+Author-email: distutils-sig@python.org
+License: MIT
+Project-URL: Documentation, https://pip.pypa.io
+Project-URL: Source, https://github.com/pypa/pip
+Project-URL: Changelog, https://pip.pypa.io/en/stable/news/
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Topic :: Software Development :: Build Tools
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3 :: Only
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Requires-Python: >=3.6
+License-File: LICENSE.txt
+
+pip - The Python Package Installer
+==================================
+
+.. image:: https://img.shields.io/pypi/v/pip.svg
+   :target: https://pypi.org/project/pip/
+
+.. image:: https://readthedocs.org/projects/pip/badge/?version=latest
+   :target: https://pip.pypa.io/en/latest
+
+pip is the `package installer`_ for Python. You can use pip to install packages from the `Python Package Index`_ and other indexes.
+
+Please take a look at our documentation for how to install and use pip:
+
+* `Installation`_
+* `Usage`_
+
+We release updates regularly, with a new version every 3 months. Find more details in our documentation:
+
+* `Release notes`_
+* `Release process`_
+
+In pip 20.3, we've `made a big improvement to the heart of pip`_; `learn more`_. We want your input, so `sign up for our user experience research studies`_ to help us do it right.
+
+**Note**: pip 21.0, in January 2021, removed Python 2 support, per pip's `Python 2 support policy`_. Please migrate to Python 3.
+
+If you find bugs, need help, or want to talk to the developers, please use our mailing lists or chat rooms:
+
+* `Issue tracking`_
+* `Discourse channel`_
+* `User IRC`_
+
+If you want to get involved head over to GitHub to get the source code, look at our development documentation and feel free to jump on the developer mailing lists and chat rooms:
+
+* `GitHub page`_
+* `Development documentation`_
+* `Development mailing list`_
+* `Development IRC`_
+
+Code of Conduct
+---------------
+
+Everyone interacting in the pip project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PSF Code of Conduct`_.
+
+.. _package installer: https://packaging.python.org/guides/tool-recommendations/
+.. _Python Package Index: https://pypi.org
+.. _Installation: https://pip.pypa.io/en/stable/installation/
+.. _Usage: https://pip.pypa.io/en/stable/
+.. _Release notes: https://pip.pypa.io/en/stable/news.html
+.. _Release process: https://pip.pypa.io/en/latest/development/release-process/
+.. _GitHub page: https://github.com/pypa/pip
+.. _Development documentation: https://pip.pypa.io/en/latest/development
+.. _made a big improvement to the heart of pip: https://pyfound.blogspot.com/2020/11/pip-20-3-new-resolver.html
+.. _learn more: https://pip.pypa.io/en/latest/user_guide/#changes-to-the-pip-dependency-resolver-in-20-3-2020
+.. _sign up for our user experience research studies: https://pyfound.blogspot.com/2020/03/new-pip-resolver-to-roll-out-this-year.html
+.. _Python 2 support policy: https://pip.pypa.io/en/latest/development/release-process/#python-2-support
+.. _Issue tracking: https://github.com/pypa/pip/issues
+.. _Discourse channel: https://discuss.python.org/c/packaging
+.. _Development mailing list: https://mail.python.org/mailman3/lists/distutils-sig.python.org/
+.. _User IRC: https://kiwiirc.com/nextclient/#ircs://irc.libera.chat:+6697/pypa
+.. _Development IRC: https://kiwiirc.com/nextclient/#ircs://irc.libera.chat:+6697/pypa-dev
+.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md
+
+
diff --git a/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/RECORD b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/RECORD
new file mode 100644
index 0000000..17e1843
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+pip\_vendor\chardet\langthaimodel.cpython-310.pyc,,
+pip\_internal\__pycache__,,
+pip\_internal\locations\__pycache__,,
+pip\_vendor\chardet\mbcssm.cpython-310.pyc,,
+pip\_internal\commands\help.cpython-310.pyc,,
+pip\_vendor\requests\cookies.cpython-310.pyc,,
+pip\_vendor\html5lib\filters\__init__.cpython-310.pyc,,
+pip\_vendor\resolvelib\__init__.cpython-310.pyc,,
+pip\_vendor\cachecontrol\compat.cpython-310.pyc,,
+pip\_vendor\webencodings\__init__.cpython-310.pyc,,
+pip\_internal\utils\packaging.cpython-310.pyc,,
+pip\_vendor\msgpack\fallback.cpython-310.pyc,,
+pip\_vendor\idna\core.cpython-310.pyc,,
+pip\_internal\req\__pycache__,,
+pip\_vendor\distro.cpython-310.pyc,,
+pip\_internal\models\candidate.cpython-310.pyc,,
+pip\_vendor\tenacity\__pycache__,,
+pip\_internal\utils\compat.cpython-310.pyc,,
+pip\_vendor\html5lib\__pycache__,,
+pip\_internal\resolution\resolvelib\found_candidates.cpython-310.pyc,,
+pip\_vendor\resolvelib\compat\__init__.cpython-310.pyc,,
+pip\_vendor\urllib3\poolmanager.cpython-310.pyc,,
+pip\_vendor\urllib3\contrib\_securetransport\bindings.cpython-310.pyc,,
+pip\_internal\resolution\resolvelib\base.cpython-310.pyc,,
+pip\_vendor\html5lib\treebuilders\dom.cpython-310.pyc,,
+pip\_vendor\progress\colors.cpython-310.pyc,,
+pip\_vendor\chardet\charsetprober.cpython-310.pyc,,
+pip\_internal\operations\install\__pycache__,,
+pip\_vendor\msgpack\__pycache__,,
+pip\_vendor\certifi\__init__.cpython-310.pyc,,
+pip\_internal\index\collector.cpython-310.pyc,,
+pip\__main__.cpython-310.pyc,,
+pip\_vendor\distlib\_backport\sysconfig.cpython-310.pyc,,
+pip\_vendor\colorama\winterm.cpython-310.pyc,,
+pip\_internal\vcs\__pycache__,,
+pip\_vendor\idna\uts46data.cpython-310.pyc,,
+pip\_internal\utils\datetime.cpython-310.pyc,,
+pip\_vendor\html5lib\treewalkers\etree_lxml.cpython-310.pyc,,
+pip\_internal\utils\temp_dir.cpython-310.pyc,,
+pip\_vendor\distlib\scripts.cpython-310.pyc,,
+pip\_internal\cli\progress_bars.cpython-310.pyc,,
+pip\_vendor\tenacity\stop.cpython-310.pyc,,
+pip\_vendor\requests\_internal_utils.cpython-310.pyc,,
+pip\_vendor\html5lib\filters\sanitizer.cpython-310.pyc,,
+pip\_vendor\urllib3\packages\ssl_match_hostname\__pycache__,,
+pip\_vendor\urllib3\packages\backports\__init__.cpython-310.pyc,,
+pip\_internal\utils\misc.cpython-310.pyc,,
+pip\_internal\vcs\git.cpython-310.pyc,,
+pip\_vendor\resolvelib\reporters.cpython-310.pyc,,
+pip\_vendor\platformdirs\unix.cpython-310.pyc,,
+pip\_internal\commands\search.cpython-310.pyc,,
+pip\_vendor\tomli\__pycache__,,
+pip\_vendor\chardet\langhungarianmodel.cpython-310.pyc,,
+pip\_internal\vcs\subversion.cpython-310.pyc,,
+pip\_vendor\distlib\_backport\tarfile.cpython-310.pyc,,
+pip\_internal\distributions\wheel.cpython-310.pyc,,
+pip\_vendor\idna\compat.cpython-310.pyc,,
+pip\_vendor\colorama\__init__.cpython-310.pyc,,
+pip\_vendor\idna\package_data.cpython-310.pyc,,
+pip\_internal\distributions\__pycache__,,
+pip\_vendor\distlib\_backport\shutil.cpython-310.pyc,,
+pip\_vendor\tenacity\_asyncio.cpython-310.pyc,,
+pip\_vendor\cachecontrol\__pycache__,,
+pip\_vendor\chardet\escprober.cpython-310.pyc,,
+pip\_vendor\chardet\utf8prober.cpython-310.pyc,,
+pip\_internal\commands\configuration.cpython-310.pyc,,
+pip\_internal\models\target_python.cpython-310.pyc,,
+pip\_vendor\requests\compat.cpython-310.pyc,,
+pip\_vendor\chardet\eucjpprober.cpython-310.pyc,,
+pip\_internal\vcs\bazaar.cpython-310.pyc,,
+pip\_vendor\platformdirs\version.cpython-310.pyc,,
+pip\_vendor\html5lib\filters\alphabeticalattributes.cpython-310.pyc,,
+pip\_internal\metadata\__pycache__,,
+pip\_internal\commands\uninstall.cpython-310.pyc,,
+pip\_internal\commands\debug.cpython-310.pyc,,
+pip\_vendor\packaging\__init__.cpython-310.pyc,,
+pip\_internal\cli\__pycache__,,
+pip\_vendor\requests\api.cpython-310.pyc,,
+pip\_vendor\certifi\core.cpython-310.pyc,,
+pip\_vendor\colorama\__pycache__,,
+pip\_internal\utils\__pycache__,,
+pip\_internal\utils\models.cpython-310.pyc,,
+pip\_vendor\urllib3\packages\__init__.cpython-310.pyc,,
\ No newline at end of file
diff --git a/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/WHEEL b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/WHEEL
new file mode 100644
index 0000000..5bad85f
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/WHEEL
@@ -0,0 +1,5 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.37.0)
+Root-Is-Purelib: true
+Tag: py3-none-any
+
diff --git a/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/entry_points.txt b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/entry_points.txt
new file mode 100644
index 0000000..9609f72
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/entry_points.txt
@@ -0,0 +1,5 @@
+[console_scripts]
+pip = pip._internal.cli.main:main
+pip3 = pip._internal.cli.main:main
+pip3.9 = pip._internal.cli.main:main
+
diff --git a/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/top_level.txt b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/top_level.txt
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip-21.3.1.dist-info/top_level.txt
@@ -0,0 +1 @@
+pip
diff --git a/utils/python-venv/Lib/site-packages/pip-21.3.1.virtualenv b/utils/python-venv/Lib/site-packages/pip-21.3.1.virtualenv
new file mode 100644
index 0000000..e69de29
diff --git a/utils/python-venv/Lib/site-packages/pip/__init__.py b/utils/python-venv/Lib/site-packages/pip/__init__.py
new file mode 100644
index 0000000..acead99
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/__init__.py
@@ -0,0 +1,13 @@
+from typing import List, Optional
+
+__version__ = "21.3.1"
+
+
+def main(args: Optional[List[str]] = None) -> int:
+    """This is an internal API only meant for use by pip's own console scripts.
+
+    For additional details, see https://github.com/pypa/pip/issues/7498.
+    """
+    from pip._internal.utils.entrypoints import _wrapper
+
+    return _wrapper(args)
diff --git a/utils/python-venv/Lib/site-packages/pip/__main__.py b/utils/python-venv/Lib/site-packages/pip/__main__.py
new file mode 100644
index 0000000..fe34a7b
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/__main__.py
@@ -0,0 +1,31 @@
+import os
+import sys
+import warnings
+
+# Remove '' and current working directory from the first entry
+# of sys.path, if present to avoid using current directory
+# in pip commands check, freeze, install, list and show,
+# when invoked as python -m pip 
+if sys.path[0] in ("", os.getcwd()):
+    sys.path.pop(0)
+
+# If we are running from a wheel, add the wheel to sys.path
+# This allows the usage python pip-*.whl/pip install pip-*.whl
+if __package__ == "":
+    # __file__ is pip-*.whl/pip/__main__.py
+    # first dirname call strips of '/__main__.py', second strips off '/pip'
+    # Resulting path is the name of the wheel itself
+    # Add that to sys.path so we can import pip
+    path = os.path.dirname(os.path.dirname(__file__))
+    sys.path.insert(0, path)
+
+if __name__ == "__main__":
+    # Work around the error reported in #9540, pending a proper fix.
+    # Note: It is essential the warning filter is set *before* importing
+    #       pip, as the deprecation happens at import time, not runtime.
+    warnings.filterwarnings(
+        "ignore", category=DeprecationWarning, module=".*packaging\\.version"
+    )
+    from pip._internal.cli.main import main as _main
+
+    sys.exit(_main())
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/__init__.py
new file mode 100644
index 0000000..6afb5c6
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/__init__.py
@@ -0,0 +1,19 @@
+from typing import List, Optional
+
+import pip._internal.utils.inject_securetransport  # noqa
+from pip._internal.utils import _log
+
+# init_logging() must be called before any call to logging.getLogger()
+# which happens at import of most modules.
+_log.init_logging()
+
+
+def main(args: (Optional[List[str]]) = None) -> int:
+    """This is preserved for old console scripts that may still be referencing
+    it.
+
+    For additional details, see https://github.com/pypa/pip/issues/7498.
+    """
+    from pip._internal.utils.entrypoints import _wrapper
+
+    return _wrapper(args)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/build_env.py b/utils/python-venv/Lib/site-packages/pip/_internal/build_env.py
new file mode 100644
index 0000000..8faf1cf
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/build_env.py
@@ -0,0 +1,293 @@
+"""Build Environment used for isolation during sdist building
+"""
+
+import contextlib
+import logging
+import os
+import pathlib
+import sys
+import textwrap
+import zipfile
+from collections import OrderedDict
+from sysconfig import get_paths
+from types import TracebackType
+from typing import TYPE_CHECKING, Iterable, Iterator, List, Optional, Set, Tuple, Type
+
+from pip._vendor.certifi import where
+from pip._vendor.packaging.requirements import Requirement
+from pip._vendor.packaging.version import Version
+
+from pip import __file__ as pip_location
+from pip._internal.cli.spinners import open_spinner
+from pip._internal.locations import get_platlib, get_prefixed_libs, get_purelib
+from pip._internal.metadata import get_environment
+from pip._internal.utils.subprocess import call_subprocess
+from pip._internal.utils.temp_dir import TempDirectory, tempdir_kinds
+
+if TYPE_CHECKING:
+    from pip._internal.index.package_finder import PackageFinder
+
+logger = logging.getLogger(__name__)
+
+
+class _Prefix:
+    def __init__(self, path: str) -> None:
+        self.path = path
+        self.setup = False
+        self.bin_dir = get_paths(
+            "nt" if os.name == "nt" else "posix_prefix",
+            vars={"base": path, "platbase": path},
+        )["scripts"]
+        self.lib_dirs = get_prefixed_libs(path)
+
+
+@contextlib.contextmanager
+def _create_standalone_pip() -> Iterator[str]:
+    """Create a "standalone pip" zip file.
+
+    The zip file's content is identical to the currently-running pip.
+    It will be used to install requirements into the build environment.
+    """
+    source = pathlib.Path(pip_location).resolve().parent
+
+    # Return the current instance if `source` is not a directory. We can't build
+    # a zip from this, and it likely means the instance is already standalone.
+    if not source.is_dir():
+        yield str(source)
+        return
+
+    with TempDirectory(kind="standalone-pip") as tmp_dir:
+        pip_zip = os.path.join(tmp_dir.path, "__env_pip__.zip")
+        kwargs = {}
+        if sys.version_info >= (3, 8):
+            kwargs["strict_timestamps"] = False
+        with zipfile.ZipFile(pip_zip, "w", **kwargs) as zf:
+            for child in source.rglob("*"):
+                zf.write(child, child.relative_to(source.parent).as_posix())
+        yield os.path.join(pip_zip, "pip")
+
+
+class BuildEnvironment:
+    """Creates and manages an isolated environment to install build deps"""
+
+    def __init__(self) -> None:
+        temp_dir = TempDirectory(kind=tempdir_kinds.BUILD_ENV, globally_managed=True)
+
+        self._prefixes = OrderedDict(
+            (name, _Prefix(os.path.join(temp_dir.path, name)))
+            for name in ("normal", "overlay")
+        )
+
+        self._bin_dirs: List[str] = []
+        self._lib_dirs: List[str] = []
+        for prefix in reversed(list(self._prefixes.values())):
+            self._bin_dirs.append(prefix.bin_dir)
+            self._lib_dirs.extend(prefix.lib_dirs)
+
+        # Customize site to:
+        # - ensure .pth files are honored
+        # - prevent access to system site packages
+        system_sites = {
+            os.path.normcase(site) for site in (get_purelib(), get_platlib())
+        }
+        self._site_dir = os.path.join(temp_dir.path, "site")
+        if not os.path.exists(self._site_dir):
+            os.mkdir(self._site_dir)
+        with open(os.path.join(self._site_dir, "sitecustomize.py"), "w") as fp:
+            fp.write(
+                textwrap.dedent(
+                    """
+                import os, site, sys
+
+                # First, drop system-sites related paths.
+                original_sys_path = sys.path[:]
+                known_paths = set()
+                for path in {system_sites!r}:
+                    site.addsitedir(path, known_paths=known_paths)
+                system_paths = set(
+                    os.path.normcase(path)
+                    for path in sys.path[len(original_sys_path):]
+                )
+                original_sys_path = [
+                    path for path in original_sys_path
+                    if os.path.normcase(path) not in system_paths
+                ]
+                sys.path = original_sys_path
+
+                # Second, add lib directories.
+                # ensuring .pth file are processed.
+                for path in {lib_dirs!r}:
+                    assert not path in sys.path
+                    site.addsitedir(path)
+                """
+                ).format(system_sites=system_sites, lib_dirs=self._lib_dirs)
+            )
+
+    def __enter__(self) -> None:
+        self._save_env = {
+            name: os.environ.get(name, None)
+            for name in ("PATH", "PYTHONNOUSERSITE", "PYTHONPATH")
+        }
+
+        path = self._bin_dirs[:]
+        old_path = self._save_env["PATH"]
+        if old_path:
+            path.extend(old_path.split(os.pathsep))
+
+        pythonpath = [self._site_dir]
+
+        os.environ.update(
+            {
+                "PATH": os.pathsep.join(path),
+                "PYTHONNOUSERSITE": "1",
+                "PYTHONPATH": os.pathsep.join(pythonpath),
+            }
+        )
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> None:
+        for varname, old_value in self._save_env.items():
+            if old_value is None:
+                os.environ.pop(varname, None)
+            else:
+                os.environ[varname] = old_value
+
+    def check_requirements(
+        self, reqs: Iterable[str]
+    ) -> Tuple[Set[Tuple[str, str]], Set[str]]:
+        """Return 2 sets:
+        - conflicting requirements: set of (installed, wanted) reqs tuples
+        - missing requirements: set of reqs
+        """
+        missing = set()
+        conflicting = set()
+        if reqs:
+            env = get_environment(self._lib_dirs)
+            for req_str in reqs:
+                req = Requirement(req_str)
+                dist = env.get_distribution(req.name)
+                if not dist:
+                    missing.add(req_str)
+                    continue
+                if isinstance(dist.version, Version):
+                    installed_req_str = f"{req.name}=={dist.version}"
+                else:
+                    installed_req_str = f"{req.name}==={dist.version}"
+                if dist.version not in req.specifier:
+                    conflicting.add((installed_req_str, req_str))
+                # FIXME: Consider direct URL?
+        return conflicting, missing
+
+    def install_requirements(
+        self,
+        finder: "PackageFinder",
+        requirements: Iterable[str],
+        prefix_as_string: str,
+        message: str,
+    ) -> None:
+        prefix = self._prefixes[prefix_as_string]
+        assert not prefix.setup
+        prefix.setup = True
+        if not requirements:
+            return
+        with contextlib.ExitStack() as ctx:
+            # TODO: Remove this block when dropping 3.6 support. Python 3.6
+            # lacks importlib.resources and pep517 has issues loading files in
+            # a zip, so we fallback to the "old" method by adding the current
+            # pip directory to the child process's sys.path.
+            if sys.version_info < (3, 7):
+                pip_runnable = os.path.dirname(pip_location)
+            else:
+                pip_runnable = ctx.enter_context(_create_standalone_pip())
+            self._install_requirements(
+                pip_runnable,
+                finder,
+                requirements,
+                prefix,
+                message,
+            )
+
+    @staticmethod
+    def _install_requirements(
+        pip_runnable: str,
+        finder: "PackageFinder",
+        requirements: Iterable[str],
+        prefix: _Prefix,
+        message: str,
+    ) -> None:
+        args: List[str] = [
+            sys.executable,
+            pip_runnable,
+            "install",
+            "--ignore-installed",
+            "--no-user",
+            "--prefix",
+            prefix.path,
+            "--no-warn-script-location",
+        ]
+        if logger.getEffectiveLevel() <= logging.DEBUG:
+            args.append("-v")
+        for format_control in ("no_binary", "only_binary"):
+            formats = getattr(finder.format_control, format_control)
+            args.extend(
+                (
+                    "--" + format_control.replace("_", "-"),
+                    ",".join(sorted(formats or {":none:"})),
+                )
+            )
+
+        index_urls = finder.index_urls
+        if index_urls:
+            args.extend(["-i", index_urls[0]])
+            for extra_index in index_urls[1:]:
+                args.extend(["--extra-index-url", extra_index])
+        else:
+            args.append("--no-index")
+        for link in finder.find_links:
+            args.extend(["--find-links", link])
+
+        for host in finder.trusted_hosts:
+            args.extend(["--trusted-host", host])
+        if finder.allow_all_prereleases:
+            args.append("--pre")
+        if finder.prefer_binary:
+            args.append("--prefer-binary")
+        args.append("--")
+        args.extend(requirements)
+        extra_environ = {"_PIP_STANDALONE_CERT": where()}
+        with open_spinner(message) as spinner:
+            call_subprocess(args, spinner=spinner, extra_environ=extra_environ)
+
+
+class NoOpBuildEnvironment(BuildEnvironment):
+    """A no-op drop-in replacement for BuildEnvironment"""
+
+    def __init__(self) -> None:
+        pass
+
+    def __enter__(self) -> None:
+        pass
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> None:
+        pass
+
+    def cleanup(self) -> None:
+        pass
+
+    def install_requirements(
+        self,
+        finder: "PackageFinder",
+        requirements: Iterable[str],
+        prefix_as_string: str,
+        message: str,
+    ) -> None:
+        raise NotImplementedError()
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cache.py b/utils/python-venv/Lib/site-packages/pip/_internal/cache.py
new file mode 100644
index 0000000..1d6df22
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cache.py
@@ -0,0 +1,264 @@
+"""Cache Management
+"""
+
+import hashlib
+import json
+import logging
+import os
+from typing import Any, Dict, List, Optional, Set
+
+from pip._vendor.packaging.tags import Tag, interpreter_name, interpreter_version
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.exceptions import InvalidWheelFilename
+from pip._internal.models.format_control import FormatControl
+from pip._internal.models.link import Link
+from pip._internal.models.wheel import Wheel
+from pip._internal.utils.temp_dir import TempDirectory, tempdir_kinds
+from pip._internal.utils.urls import path_to_url
+
+logger = logging.getLogger(__name__)
+
+
+def _hash_dict(d: Dict[str, str]) -> str:
+    """Return a stable sha224 of a dictionary."""
+    s = json.dumps(d, sort_keys=True, separators=(",", ":"), ensure_ascii=True)
+    return hashlib.sha224(s.encode("ascii")).hexdigest()
+
+
+class Cache:
+    """An abstract class - provides cache directories for data from links
+
+
+    :param cache_dir: The root of the cache.
+    :param format_control: An object of FormatControl class to limit
+        binaries being read from the cache.
+    :param allowed_formats: which formats of files the cache should store.
+        ('binary' and 'source' are the only allowed values)
+    """
+
+    def __init__(
+        self, cache_dir: str, format_control: FormatControl, allowed_formats: Set[str]
+    ) -> None:
+        super().__init__()
+        assert not cache_dir or os.path.isabs(cache_dir)
+        self.cache_dir = cache_dir or None
+        self.format_control = format_control
+        self.allowed_formats = allowed_formats
+
+        _valid_formats = {"source", "binary"}
+        assert self.allowed_formats.union(_valid_formats) == _valid_formats
+
+    def _get_cache_path_parts(self, link: Link) -> List[str]:
+        """Get parts of part that must be os.path.joined with cache_dir"""
+
+        # We want to generate an url to use as our cache key, we don't want to
+        # just re-use the URL because it might have other items in the fragment
+        # and we don't care about those.
+        key_parts = {"url": link.url_without_fragment}
+        if link.hash_name is not None and link.hash is not None:
+            key_parts[link.hash_name] = link.hash
+        if link.subdirectory_fragment:
+            key_parts["subdirectory"] = link.subdirectory_fragment
+
+        # Include interpreter name, major and minor version in cache key
+        # to cope with ill-behaved sdists that build a different wheel
+        # depending on the python version their setup.py is being run on,
+        # and don't encode the difference in compatibility tags.
+        # https://github.com/pypa/pip/issues/7296
+        key_parts["interpreter_name"] = interpreter_name()
+        key_parts["interpreter_version"] = interpreter_version()
+
+        # Encode our key url with sha224, we'll use this because it has similar
+        # security properties to sha256, but with a shorter total output (and
+        # thus less secure). However the differences don't make a lot of
+        # difference for our use case here.
+        hashed = _hash_dict(key_parts)
+
+        # We want to nest the directories some to prevent having a ton of top
+        # level directories where we might run out of sub directories on some
+        # FS.
+        parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
+
+        return parts
+
+    def _get_candidates(self, link: Link, canonical_package_name: str) -> List[Any]:
+        can_not_cache = not self.cache_dir or not canonical_package_name or not link
+        if can_not_cache:
+            return []
+
+        formats = self.format_control.get_allowed_formats(canonical_package_name)
+        if not self.allowed_formats.intersection(formats):
+            return []
+
+        candidates = []
+        path = self.get_path_for_link(link)
+        if os.path.isdir(path):
+            for candidate in os.listdir(path):
+                candidates.append((candidate, path))
+        return candidates
+
+    def get_path_for_link(self, link: Link) -> str:
+        """Return a directory to store cached items in for link."""
+        raise NotImplementedError()
+
+    def get(
+        self,
+        link: Link,
+        package_name: Optional[str],
+        supported_tags: List[Tag],
+    ) -> Link:
+        """Returns a link to a cached item if it exists, otherwise returns the
+        passed link.
+        """
+        raise NotImplementedError()
+
+
+class SimpleWheelCache(Cache):
+    """A cache of wheels for future installs."""
+
+    def __init__(self, cache_dir: str, format_control: FormatControl) -> None:
+        super().__init__(cache_dir, format_control, {"binary"})
+
+    def get_path_for_link(self, link: Link) -> str:
+        """Return a directory to store cached wheels for link
+
+        Because there are M wheels for any one sdist, we provide a directory
+        to cache them in, and then consult that directory when looking up
+        cache hits.
+
+        We only insert things into the cache if they have plausible version
+        numbers, so that we don't contaminate the cache with things that were
+        not unique. E.g. ./package might have dozens of installs done for it
+        and build a version of 0.0...and if we built and cached a wheel, we'd
+        end up using the same wheel even if the source has been edited.
+
+        :param link: The link of the sdist for which this will cache wheels.
+        """
+        parts = self._get_cache_path_parts(link)
+        assert self.cache_dir
+        # Store wheels within the root cache_dir
+        return os.path.join(self.cache_dir, "wheels", *parts)
+
+    def get(
+        self,
+        link: Link,
+        package_name: Optional[str],
+        supported_tags: List[Tag],
+    ) -> Link:
+        candidates = []
+
+        if not package_name:
+            return link
+
+        canonical_package_name = canonicalize_name(package_name)
+        for wheel_name, wheel_dir in self._get_candidates(link, canonical_package_name):
+            try:
+                wheel = Wheel(wheel_name)
+            except InvalidWheelFilename:
+                continue
+            if canonicalize_name(wheel.name) != canonical_package_name:
+                logger.debug(
+                    "Ignoring cached wheel %s for %s as it "
+                    "does not match the expected distribution name %s.",
+                    wheel_name,
+                    link,
+                    package_name,
+                )
+                continue
+            if not wheel.supported(supported_tags):
+                # Built for a different python/arch/etc
+                continue
+            candidates.append(
+                (
+                    wheel.support_index_min(supported_tags),
+                    wheel_name,
+                    wheel_dir,
+                )
+            )
+
+        if not candidates:
+            return link
+
+        _, wheel_name, wheel_dir = min(candidates)
+        return Link(path_to_url(os.path.join(wheel_dir, wheel_name)))
+
+
+class EphemWheelCache(SimpleWheelCache):
+    """A SimpleWheelCache that creates it's own temporary cache directory"""
+
+    def __init__(self, format_control: FormatControl) -> None:
+        self._temp_dir = TempDirectory(
+            kind=tempdir_kinds.EPHEM_WHEEL_CACHE,
+            globally_managed=True,
+        )
+
+        super().__init__(self._temp_dir.path, format_control)
+
+
+class CacheEntry:
+    def __init__(
+        self,
+        link: Link,
+        persistent: bool,
+    ):
+        self.link = link
+        self.persistent = persistent
+
+
+class WheelCache(Cache):
+    """Wraps EphemWheelCache and SimpleWheelCache into a single Cache
+
+    This Cache allows for gracefully degradation, using the ephem wheel cache
+    when a certain link is not found in the simple wheel cache first.
+    """
+
+    def __init__(self, cache_dir: str, format_control: FormatControl) -> None:
+        super().__init__(cache_dir, format_control, {"binary"})
+        self._wheel_cache = SimpleWheelCache(cache_dir, format_control)
+        self._ephem_cache = EphemWheelCache(format_control)
+
+    def get_path_for_link(self, link: Link) -> str:
+        return self._wheel_cache.get_path_for_link(link)
+
+    def get_ephem_path_for_link(self, link: Link) -> str:
+        return self._ephem_cache.get_path_for_link(link)
+
+    def get(
+        self,
+        link: Link,
+        package_name: Optional[str],
+        supported_tags: List[Tag],
+    ) -> Link:
+        cache_entry = self.get_cache_entry(link, package_name, supported_tags)
+        if cache_entry is None:
+            return link
+        return cache_entry.link
+
+    def get_cache_entry(
+        self,
+        link: Link,
+        package_name: Optional[str],
+        supported_tags: List[Tag],
+    ) -> Optional[CacheEntry]:
+        """Returns a CacheEntry with a link to a cached item if it exists or
+        None. The cache entry indicates if the item was found in the persistent
+        or ephemeral cache.
+        """
+        retval = self._wheel_cache.get(
+            link=link,
+            package_name=package_name,
+            supported_tags=supported_tags,
+        )
+        if retval is not link:
+            return CacheEntry(retval, persistent=True)
+
+        retval = self._ephem_cache.get(
+            link=link,
+            package_name=package_name,
+            supported_tags=supported_tags,
+        )
+        if retval is not link:
+            return CacheEntry(retval, persistent=False)
+
+        return None
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/__init__.py
new file mode 100644
index 0000000..e589bb9
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/__init__.py
@@ -0,0 +1,4 @@
+"""Subpackage containing all of pip's command line interface related code
+"""
+
+# This file intentionally does not import submodules
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/autocompletion.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/autocompletion.py
new file mode 100644
index 0000000..3cad148
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/autocompletion.py
@@ -0,0 +1,163 @@
+"""Logic that powers autocompletion installed by ``pip completion``.
+"""
+
+import optparse
+import os
+import sys
+from itertools import chain
+from typing import Any, Iterable, List, Optional
+
+from pip._internal.cli.main_parser import create_main_parser
+from pip._internal.commands import commands_dict, create_command
+from pip._internal.metadata import get_default_environment
+
+
+def autocomplete() -> None:
+    """Entry Point for completion of main and subcommand options."""
+    # Don't complete if user hasn't sourced bash_completion file.
+    if "PIP_AUTO_COMPLETE" not in os.environ:
+        return
+    cwords = os.environ["COMP_WORDS"].split()[1:]
+    cword = int(os.environ["COMP_CWORD"])
+    try:
+        current = cwords[cword - 1]
+    except IndexError:
+        current = ""
+
+    parser = create_main_parser()
+    subcommands = list(commands_dict)
+    options = []
+
+    # subcommand
+    subcommand_name: Optional[str] = None
+    for word in cwords:
+        if word in subcommands:
+            subcommand_name = word
+            break
+    # subcommand options
+    if subcommand_name is not None:
+        # special case: 'help' subcommand has no options
+        if subcommand_name == "help":
+            sys.exit(1)
+        # special case: list locally installed dists for show and uninstall
+        should_list_installed = not current.startswith("-") and subcommand_name in [
+            "show",
+            "uninstall",
+        ]
+        if should_list_installed:
+            env = get_default_environment()
+            lc = current.lower()
+            installed = [
+                dist.canonical_name
+                for dist in env.iter_installed_distributions(local_only=True)
+                if dist.canonical_name.startswith(lc)
+                and dist.canonical_name not in cwords[1:]
+            ]
+            # if there are no dists installed, fall back to option completion
+            if installed:
+                for dist in installed:
+                    print(dist)
+                sys.exit(1)
+
+        subcommand = create_command(subcommand_name)
+
+        for opt in subcommand.parser.option_list_all:
+            if opt.help != optparse.SUPPRESS_HELP:
+                for opt_str in opt._long_opts + opt._short_opts:
+                    options.append((opt_str, opt.nargs))
+
+        # filter out previously specified options from available options
+        prev_opts = [x.split("=")[0] for x in cwords[1 : cword - 1]]
+        options = [(x, v) for (x, v) in options if x not in prev_opts]
+        # filter options by current input
+        options = [(k, v) for k, v in options if k.startswith(current)]
+        # get completion type given cwords and available subcommand options
+        completion_type = get_path_completion_type(
+            cwords,
+            cword,
+            subcommand.parser.option_list_all,
+        )
+        # get completion files and directories if ``completion_type`` is
+        # ````, ```` or ````
+        if completion_type:
+            paths = auto_complete_paths(current, completion_type)
+            options = [(path, 0) for path in paths]
+        for option in options:
+            opt_label = option[0]
+            # append '=' to options which require args
+            if option[1] and option[0][:2] == "--":
+                opt_label += "="
+            print(opt_label)
+    else:
+        # show main parser options only when necessary
+
+        opts = [i.option_list for i in parser.option_groups]
+        opts.append(parser.option_list)
+        flattened_opts = chain.from_iterable(opts)
+        if current.startswith("-"):
+            for opt in flattened_opts:
+                if opt.help != optparse.SUPPRESS_HELP:
+                    subcommands += opt._long_opts + opt._short_opts
+        else:
+            # get completion type given cwords and all available options
+            completion_type = get_path_completion_type(cwords, cword, flattened_opts)
+            if completion_type:
+                subcommands = list(auto_complete_paths(current, completion_type))
+
+        print(" ".join([x for x in subcommands if x.startswith(current)]))
+    sys.exit(1)
+
+
+def get_path_completion_type(
+    cwords: List[str], cword: int, opts: Iterable[Any]
+) -> Optional[str]:
+    """Get the type of path completion (``file``, ``dir``, ``path`` or None)
+
+    :param cwords: same as the environmental variable ``COMP_WORDS``
+    :param cword: same as the environmental variable ``COMP_CWORD``
+    :param opts: The available options to check
+    :return: path completion type (``file``, ``dir``, ``path`` or None)
+    """
+    if cword < 2 or not cwords[cword - 2].startswith("-"):
+        return None
+    for opt in opts:
+        if opt.help == optparse.SUPPRESS_HELP:
+            continue
+        for o in str(opt).split("/"):
+            if cwords[cword - 2].split("=")[0] == o:
+                if not opt.metavar or any(
+                    x in ("path", "file", "dir") for x in opt.metavar.split("/")
+                ):
+                    return opt.metavar
+    return None
+
+
+def auto_complete_paths(current: str, completion_type: str) -> Iterable[str]:
+    """If ``completion_type`` is ``file`` or ``path``, list all regular files
+    and directories starting with ``current``; otherwise only list directories
+    starting with ``current``.
+
+    :param current: The word to be completed
+    :param completion_type: path completion type(`file`, `path` or `dir`)i
+    :return: A generator of regular files and/or directories
+    """
+    directory, filename = os.path.split(current)
+    current_path = os.path.abspath(directory)
+    # Don't complete paths if they can't be accessed
+    if not os.access(current_path, os.R_OK):
+        return
+    filename = os.path.normcase(filename)
+    # list all files that start with ``filename``
+    file_list = (
+        x for x in os.listdir(current_path) if os.path.normcase(x).startswith(filename)
+    )
+    for f in file_list:
+        opt = os.path.join(current_path, f)
+        comp_file = os.path.normcase(os.path.join(directory, f))
+        # complete regular files when there is not ```` after option
+        # complete directories when there is ````, ```` or
+        # ````after option
+        if completion_type != "dir" and os.path.isfile(opt):
+            yield comp_file
+        elif os.path.isdir(opt):
+            yield os.path.join(comp_file, "")
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/base_command.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/base_command.py
new file mode 100644
index 0000000..0afe7e7
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/base_command.py
@@ -0,0 +1,214 @@
+"""Base Command class, and related routines"""
+
+import functools
+import logging
+import logging.config
+import optparse
+import os
+import sys
+import traceback
+from optparse import Values
+from typing import Any, Callable, List, Optional, Tuple
+
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.command_context import CommandContextMixIn
+from pip._internal.cli.parser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
+from pip._internal.cli.status_codes import (
+    ERROR,
+    PREVIOUS_BUILD_DIR_ERROR,
+    UNKNOWN_ERROR,
+    VIRTUALENV_NOT_FOUND,
+)
+from pip._internal.exceptions import (
+    BadCommand,
+    CommandError,
+    InstallationError,
+    NetworkConnectionError,
+    PreviousBuildDirError,
+    UninstallationError,
+)
+from pip._internal.utils.filesystem import check_path_owner
+from pip._internal.utils.logging import BrokenStdoutLoggingError, setup_logging
+from pip._internal.utils.misc import get_prog, normalize_path
+from pip._internal.utils.temp_dir import TempDirectoryTypeRegistry as TempDirRegistry
+from pip._internal.utils.temp_dir import global_tempdir_manager, tempdir_registry
+from pip._internal.utils.virtualenv import running_under_virtualenv
+
+__all__ = ["Command"]
+
+logger = logging.getLogger(__name__)
+
+
+class Command(CommandContextMixIn):
+    usage: str = ""
+    ignore_require_venv: bool = False
+
+    def __init__(self, name: str, summary: str, isolated: bool = False) -> None:
+        super().__init__()
+
+        self.name = name
+        self.summary = summary
+        self.parser = ConfigOptionParser(
+            usage=self.usage,
+            prog=f"{get_prog()} {name}",
+            formatter=UpdatingDefaultsHelpFormatter(),
+            add_help_option=False,
+            name=name,
+            description=self.__doc__,
+            isolated=isolated,
+        )
+
+        self.tempdir_registry: Optional[TempDirRegistry] = None
+
+        # Commands should add options to this option group
+        optgroup_name = f"{self.name.capitalize()} Options"
+        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)
+
+        # Add the general options
+        gen_opts = cmdoptions.make_option_group(
+            cmdoptions.general_group,
+            self.parser,
+        )
+        self.parser.add_option_group(gen_opts)
+
+        self.add_options()
+
+    def add_options(self) -> None:
+        pass
+
+    def handle_pip_version_check(self, options: Values) -> None:
+        """
+        This is a no-op so that commands by default do not do the pip version
+        check.
+        """
+        # Make sure we do the pip version check if the index_group options
+        # are present.
+        assert not hasattr(options, "no_index")
+
+    def run(self, options: Values, args: List[str]) -> int:
+        raise NotImplementedError
+
+    def parse_args(self, args: List[str]) -> Tuple[Values, List[str]]:
+        # factored out for testability
+        return self.parser.parse_args(args)
+
+    def main(self, args: List[str]) -> int:
+        try:
+            with self.main_context():
+                return self._main(args)
+        finally:
+            logging.shutdown()
+
+    def _main(self, args: List[str]) -> int:
+        # We must initialize this before the tempdir manager, otherwise the
+        # configuration would not be accessible by the time we clean up the
+        # tempdir manager.
+        self.tempdir_registry = self.enter_context(tempdir_registry())
+        # Intentionally set as early as possible so globally-managed temporary
+        # directories are available to the rest of the code.
+        self.enter_context(global_tempdir_manager())
+
+        options, args = self.parse_args(args)
+
+        # Set verbosity so that it can be used elsewhere.
+        self.verbosity = options.verbose - options.quiet
+
+        level_number = setup_logging(
+            verbosity=self.verbosity,
+            no_color=options.no_color,
+            user_log_file=options.log,
+        )
+
+        # TODO: Try to get these passing down from the command?
+        #       without resorting to os.environ to hold these.
+        #       This also affects isolated builds and it should.
+
+        if options.no_input:
+            os.environ["PIP_NO_INPUT"] = "1"
+
+        if options.exists_action:
+            os.environ["PIP_EXISTS_ACTION"] = " ".join(options.exists_action)
+
+        if options.require_venv and not self.ignore_require_venv:
+            # If a venv is required check if it can really be found
+            if not running_under_virtualenv():
+                logger.critical("Could not find an activated virtualenv (required).")
+                sys.exit(VIRTUALENV_NOT_FOUND)
+
+        if options.cache_dir:
+            options.cache_dir = normalize_path(options.cache_dir)
+            if not check_path_owner(options.cache_dir):
+                logger.warning(
+                    "The directory '%s' or its parent directory is not owned "
+                    "or is not writable by the current user. The cache "
+                    "has been disabled. Check the permissions and owner of "
+                    "that directory. If executing pip with sudo, you should "
+                    "use sudo's -H flag.",
+                    options.cache_dir,
+                )
+                options.cache_dir = None
+
+        if "2020-resolver" in options.features_enabled:
+            logger.warning(
+                "--use-feature=2020-resolver no longer has any effect, "
+                "since it is now the default dependency resolver in pip. "
+                "This will become an error in pip 21.0."
+            )
+
+        def intercepts_unhandled_exc(
+            run_func: Callable[..., int]
+        ) -> Callable[..., int]:
+            @functools.wraps(run_func)
+            def exc_logging_wrapper(*args: Any) -> int:
+                try:
+                    status = run_func(*args)
+                    assert isinstance(status, int)
+                    return status
+                except PreviousBuildDirError as exc:
+                    logger.critical(str(exc))
+                    logger.debug("Exception information:", exc_info=True)
+
+                    return PREVIOUS_BUILD_DIR_ERROR
+                except (
+                    InstallationError,
+                    UninstallationError,
+                    BadCommand,
+                    NetworkConnectionError,
+                ) as exc:
+                    logger.critical(str(exc))
+                    logger.debug("Exception information:", exc_info=True)
+
+                    return ERROR
+                except CommandError as exc:
+                    logger.critical("%s", exc)
+                    logger.debug("Exception information:", exc_info=True)
+
+                    return ERROR
+                except BrokenStdoutLoggingError:
+                    # Bypass our logger and write any remaining messages to
+                    # stderr because stdout no longer works.
+                    print("ERROR: Pipe to stdout was broken", file=sys.stderr)
+                    if level_number <= logging.DEBUG:
+                        traceback.print_exc(file=sys.stderr)
+
+                    return ERROR
+                except KeyboardInterrupt:
+                    logger.critical("Operation cancelled by user")
+                    logger.debug("Exception information:", exc_info=True)
+
+                    return ERROR
+                except BaseException:
+                    logger.critical("Exception:", exc_info=True)
+
+                    return UNKNOWN_ERROR
+
+            return exc_logging_wrapper
+
+        try:
+            if not options.debug_mode:
+                run = intercepts_unhandled_exc(self.run)
+            else:
+                run = self.run
+            return run(options, args)
+        finally:
+            self.handle_pip_version_check(options)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/cmdoptions.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/cmdoptions.py
new file mode 100644
index 0000000..626fd00
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/cmdoptions.py
@@ -0,0 +1,1010 @@
+"""
+shared options and groups
+
+The principle here is to define options once, but *not* instantiate them
+globally. One reason being that options with action='append' can carry state
+between parses. pip parses general options twice internally, and shouldn't
+pass on state. To be consistent, all options will follow this design.
+"""
+
+# The following comment should be removed at some point in the future.
+# mypy: strict-optional=False
+
+import os
+import textwrap
+import warnings
+from functools import partial
+from optparse import SUPPRESS_HELP, Option, OptionGroup, OptionParser, Values
+from textwrap import dedent
+from typing import Any, Callable, Dict, Optional, Tuple
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.cli.parser import ConfigOptionParser
+from pip._internal.cli.progress_bars import BAR_TYPES
+from pip._internal.exceptions import CommandError
+from pip._internal.locations import USER_CACHE_DIR, get_src_prefix
+from pip._internal.models.format_control import FormatControl
+from pip._internal.models.index import PyPI
+from pip._internal.models.target_python import TargetPython
+from pip._internal.utils.hashes import STRONG_HASHES
+from pip._internal.utils.misc import strtobool
+
+
+def raise_option_error(parser: OptionParser, option: Option, msg: str) -> None:
+    """
+    Raise an option parsing error using parser.error().
+
+    Args:
+      parser: an OptionParser instance.
+      option: an Option instance.
+      msg: the error text.
+    """
+    msg = f"{option} error: {msg}"
+    msg = textwrap.fill(" ".join(msg.split()))
+    parser.error(msg)
+
+
+def make_option_group(group: Dict[str, Any], parser: ConfigOptionParser) -> OptionGroup:
+    """
+    Return an OptionGroup object
+    group  -- assumed to be dict with 'name' and 'options' keys
+    parser -- an optparse Parser
+    """
+    option_group = OptionGroup(parser, group["name"])
+    for option in group["options"]:
+        option_group.add_option(option())
+    return option_group
+
+
+def check_install_build_global(
+    options: Values, check_options: Optional[Values] = None
+) -> None:
+    """Disable wheels if per-setup.py call options are set.
+
+    :param options: The OptionParser options to update.
+    :param check_options: The options to check, if not supplied defaults to
+        options.
+    """
+    if check_options is None:
+        check_options = options
+
+    def getname(n: str) -> Optional[Any]:
+        return getattr(check_options, n, None)
+
+    names = ["build_options", "global_options", "install_options"]
+    if any(map(getname, names)):
+        control = options.format_control
+        control.disallow_binaries()
+        warnings.warn(
+            "Disabling all use of wheels due to the use of --build-option "
+            "/ --global-option / --install-option.",
+            stacklevel=2,
+        )
+
+
+def check_dist_restriction(options: Values, check_target: bool = False) -> None:
+    """Function for determining if custom platform options are allowed.
+
+    :param options: The OptionParser options.
+    :param check_target: Whether or not to check if --target is being used.
+    """
+    dist_restriction_set = any(
+        [
+            options.python_version,
+            options.platforms,
+            options.abis,
+            options.implementation,
+        ]
+    )
+
+    binary_only = FormatControl(set(), {":all:"})
+    sdist_dependencies_allowed = (
+        options.format_control != binary_only and not options.ignore_dependencies
+    )
+
+    # Installations or downloads using dist restrictions must not combine
+    # source distributions and dist-specific wheels, as they are not
+    # guaranteed to be locally compatible.
+    if dist_restriction_set and sdist_dependencies_allowed:
+        raise CommandError(
+            "When restricting platform and interpreter constraints using "
+            "--python-version, --platform, --abi, or --implementation, "
+            "either --no-deps must be set, or --only-binary=:all: must be "
+            "set and --no-binary must not be set (or must be set to "
+            ":none:)."
+        )
+
+    if check_target:
+        if dist_restriction_set and not options.target_dir:
+            raise CommandError(
+                "Can not use any platform or abi specific options unless "
+                "installing via '--target'"
+            )
+
+
+def _path_option_check(option: Option, opt: str, value: str) -> str:
+    return os.path.expanduser(value)
+
+
+def _package_name_option_check(option: Option, opt: str, value: str) -> str:
+    return canonicalize_name(value)
+
+
+class PipOption(Option):
+    TYPES = Option.TYPES + ("path", "package_name")
+    TYPE_CHECKER = Option.TYPE_CHECKER.copy()
+    TYPE_CHECKER["package_name"] = _package_name_option_check
+    TYPE_CHECKER["path"] = _path_option_check
+
+
+###########
+# options #
+###########
+
+help_: Callable[..., Option] = partial(
+    Option,
+    "-h",
+    "--help",
+    dest="help",
+    action="help",
+    help="Show help.",
+)
+
+debug_mode: Callable[..., Option] = partial(
+    Option,
+    "--debug",
+    dest="debug_mode",
+    action="store_true",
+    default=False,
+    help=(
+        "Let unhandled exceptions propagate outside the main subroutine, "
+        "instead of logging them to stderr."
+    ),
+)
+
+isolated_mode: Callable[..., Option] = partial(
+    Option,
+    "--isolated",
+    dest="isolated_mode",
+    action="store_true",
+    default=False,
+    help=(
+        "Run pip in an isolated mode, ignoring environment variables and user "
+        "configuration."
+    ),
+)
+
+require_virtualenv: Callable[..., Option] = partial(
+    Option,
+    # Run only if inside a virtualenv, bail if not.
+    "--require-virtualenv",
+    "--require-venv",
+    dest="require_venv",
+    action="store_true",
+    default=False,
+    help=SUPPRESS_HELP,
+)
+
+verbose: Callable[..., Option] = partial(
+    Option,
+    "-v",
+    "--verbose",
+    dest="verbose",
+    action="count",
+    default=0,
+    help="Give more output. Option is additive, and can be used up to 3 times.",
+)
+
+no_color: Callable[..., Option] = partial(
+    Option,
+    "--no-color",
+    dest="no_color",
+    action="store_true",
+    default=False,
+    help="Suppress colored output.",
+)
+
+version: Callable[..., Option] = partial(
+    Option,
+    "-V",
+    "--version",
+    dest="version",
+    action="store_true",
+    help="Show version and exit.",
+)
+
+quiet: Callable[..., Option] = partial(
+    Option,
+    "-q",
+    "--quiet",
+    dest="quiet",
+    action="count",
+    default=0,
+    help=(
+        "Give less output. Option is additive, and can be used up to 3"
+        " times (corresponding to WARNING, ERROR, and CRITICAL logging"
+        " levels)."
+    ),
+)
+
+progress_bar: Callable[..., Option] = partial(
+    Option,
+    "--progress-bar",
+    dest="progress_bar",
+    type="choice",
+    choices=list(BAR_TYPES.keys()),
+    default="on",
+    help=(
+        "Specify type of progress to be displayed ["
+        + "|".join(BAR_TYPES.keys())
+        + "] (default: %default)"
+    ),
+)
+
+log: Callable[..., Option] = partial(
+    PipOption,
+    "--log",
+    "--log-file",
+    "--local-log",
+    dest="log",
+    metavar="path",
+    type="path",
+    help="Path to a verbose appending log.",
+)
+
+no_input: Callable[..., Option] = partial(
+    Option,
+    # Don't ask for input
+    "--no-input",
+    dest="no_input",
+    action="store_true",
+    default=False,
+    help="Disable prompting for input.",
+)
+
+proxy: Callable[..., Option] = partial(
+    Option,
+    "--proxy",
+    dest="proxy",
+    type="str",
+    default="",
+    help="Specify a proxy in the form [user:passwd@]proxy.server:port.",
+)
+
+retries: Callable[..., Option] = partial(
+    Option,
+    "--retries",
+    dest="retries",
+    type="int",
+    default=5,
+    help="Maximum number of retries each connection should attempt "
+    "(default %default times).",
+)
+
+timeout: Callable[..., Option] = partial(
+    Option,
+    "--timeout",
+    "--default-timeout",
+    metavar="sec",
+    dest="timeout",
+    type="float",
+    default=15,
+    help="Set the socket timeout (default %default seconds).",
+)
+
+
+def exists_action() -> Option:
+    return Option(
+        # Option when path already exist
+        "--exists-action",
+        dest="exists_action",
+        type="choice",
+        choices=["s", "i", "w", "b", "a"],
+        default=[],
+        action="append",
+        metavar="action",
+        help="Default action when a path already exists: "
+        "(s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.",
+    )
+
+
+cert: Callable[..., Option] = partial(
+    PipOption,
+    "--cert",
+    dest="cert",
+    type="path",
+    metavar="path",
+    help=(
+        "Path to PEM-encoded CA certificate bundle. "
+        "If provided, overrides the default. "
+        "See 'SSL Certificate Verification' in pip documentation "
+        "for more information."
+    ),
+)
+
+client_cert: Callable[..., Option] = partial(
+    PipOption,
+    "--client-cert",
+    dest="client_cert",
+    type="path",
+    default=None,
+    metavar="path",
+    help="Path to SSL client certificate, a single file containing the "
+    "private key and the certificate in PEM format.",
+)
+
+index_url: Callable[..., Option] = partial(
+    Option,
+    "-i",
+    "--index-url",
+    "--pypi-url",
+    dest="index_url",
+    metavar="URL",
+    default=PyPI.simple_url,
+    help="Base URL of the Python Package Index (default %default). "
+    "This should point to a repository compliant with PEP 503 "
+    "(the simple repository API) or a local directory laid out "
+    "in the same format.",
+)
+
+
+def extra_index_url() -> Option:
+    return Option(
+        "--extra-index-url",
+        dest="extra_index_urls",
+        metavar="URL",
+        action="append",
+        default=[],
+        help="Extra URLs of package indexes to use in addition to "
+        "--index-url. Should follow the same rules as "
+        "--index-url.",
+    )
+
+
+no_index: Callable[..., Option] = partial(
+    Option,
+    "--no-index",
+    dest="no_index",
+    action="store_true",
+    default=False,
+    help="Ignore package index (only looking at --find-links URLs instead).",
+)
+
+
+def find_links() -> Option:
+    return Option(
+        "-f",
+        "--find-links",
+        dest="find_links",
+        action="append",
+        default=[],
+        metavar="url",
+        help="If a URL or path to an html file, then parse for links to "
+        "archives such as sdist (.tar.gz) or wheel (.whl) files. "
+        "If a local path or file:// URL that's a directory, "
+        "then look for archives in the directory listing. "
+        "Links to VCS project URLs are not supported.",
+    )
+
+
+def trusted_host() -> Option:
+    return Option(
+        "--trusted-host",
+        dest="trusted_hosts",
+        action="append",
+        metavar="HOSTNAME",
+        default=[],
+        help="Mark this host or host:port pair as trusted, even though it "
+        "does not have valid or any HTTPS.",
+    )
+
+
+def constraints() -> Option:
+    return Option(
+        "-c",
+        "--constraint",
+        dest="constraints",
+        action="append",
+        default=[],
+        metavar="file",
+        help="Constrain versions using the given constraints file. "
+        "This option can be used multiple times.",
+    )
+
+
+def requirements() -> Option:
+    return Option(
+        "-r",
+        "--requirement",
+        dest="requirements",
+        action="append",
+        default=[],
+        metavar="file",
+        help="Install from the given requirements file. "
+        "This option can be used multiple times.",
+    )
+
+
+def editable() -> Option:
+    return Option(
+        "-e",
+        "--editable",
+        dest="editables",
+        action="append",
+        default=[],
+        metavar="path/url",
+        help=(
+            "Install a project in editable mode (i.e. setuptools "
+            '"develop mode") from a local project path or a VCS url.'
+        ),
+    )
+
+
+def _handle_src(option: Option, opt_str: str, value: str, parser: OptionParser) -> None:
+    value = os.path.abspath(value)
+    setattr(parser.values, option.dest, value)
+
+
+src: Callable[..., Option] = partial(
+    PipOption,
+    "--src",
+    "--source",
+    "--source-dir",
+    "--source-directory",
+    dest="src_dir",
+    type="path",
+    metavar="dir",
+    default=get_src_prefix(),
+    action="callback",
+    callback=_handle_src,
+    help="Directory to check out editable projects into. "
+    'The default in a virtualenv is "/src". '
+    'The default for global installs is "/src".',
+)
+
+
+def _get_format_control(values: Values, option: Option) -> Any:
+    """Get a format_control object."""
+    return getattr(values, option.dest)
+
+
+def _handle_no_binary(
+    option: Option, opt_str: str, value: str, parser: OptionParser
+) -> None:
+    existing = _get_format_control(parser.values, option)
+    FormatControl.handle_mutual_excludes(
+        value,
+        existing.no_binary,
+        existing.only_binary,
+    )
+
+
+def _handle_only_binary(
+    option: Option, opt_str: str, value: str, parser: OptionParser
+) -> None:
+    existing = _get_format_control(parser.values, option)
+    FormatControl.handle_mutual_excludes(
+        value,
+        existing.only_binary,
+        existing.no_binary,
+    )
+
+
+def no_binary() -> Option:
+    format_control = FormatControl(set(), set())
+    return Option(
+        "--no-binary",
+        dest="format_control",
+        action="callback",
+        callback=_handle_no_binary,
+        type="str",
+        default=format_control,
+        help="Do not use binary packages. Can be supplied multiple times, and "
+        'each time adds to the existing value. Accepts either ":all:" to '
+        'disable all binary packages, ":none:" to empty the set (notice '
+        "the colons), or one or more package names with commas between "
+        "them (no colons). Note that some packages are tricky to compile "
+        "and may fail to install when this option is used on them.",
+    )
+
+
+def only_binary() -> Option:
+    format_control = FormatControl(set(), set())
+    return Option(
+        "--only-binary",
+        dest="format_control",
+        action="callback",
+        callback=_handle_only_binary,
+        type="str",
+        default=format_control,
+        help="Do not use source packages. Can be supplied multiple times, and "
+        'each time adds to the existing value. Accepts either ":all:" to '
+        'disable all source packages, ":none:" to empty the set, or one '
+        "or more package names with commas between them. Packages "
+        "without binary distributions will fail to install when this "
+        "option is used on them.",
+    )
+
+
+platforms: Callable[..., Option] = partial(
+    Option,
+    "--platform",
+    dest="platforms",
+    metavar="platform",
+    action="append",
+    default=None,
+    help=(
+        "Only use wheels compatible with . Defaults to the "
+        "platform of the running system. Use this option multiple times to "
+        "specify multiple platforms supported by the target interpreter."
+    ),
+)
+
+
+# This was made a separate function for unit-testing purposes.
+def _convert_python_version(value: str) -> Tuple[Tuple[int, ...], Optional[str]]:
+    """
+    Convert a version string like "3", "37", or "3.7.3" into a tuple of ints.
+
+    :return: A 2-tuple (version_info, error_msg), where `error_msg` is
+        non-None if and only if there was a parsing error.
+    """
+    if not value:
+        # The empty string is the same as not providing a value.
+        return (None, None)
+
+    parts = value.split(".")
+    if len(parts) > 3:
+        return ((), "at most three version parts are allowed")
+
+    if len(parts) == 1:
+        # Then we are in the case of "3" or "37".
+        value = parts[0]
+        if len(value) > 1:
+            parts = [value[0], value[1:]]
+
+    try:
+        version_info = tuple(int(part) for part in parts)
+    except ValueError:
+        return ((), "each version part must be an integer")
+
+    return (version_info, None)
+
+
+def _handle_python_version(
+    option: Option, opt_str: str, value: str, parser: OptionParser
+) -> None:
+    """
+    Handle a provided --python-version value.
+    """
+    version_info, error_msg = _convert_python_version(value)
+    if error_msg is not None:
+        msg = "invalid --python-version value: {!r}: {}".format(
+            value,
+            error_msg,
+        )
+        raise_option_error(parser, option=option, msg=msg)
+
+    parser.values.python_version = version_info
+
+
+python_version: Callable[..., Option] = partial(
+    Option,
+    "--python-version",
+    dest="python_version",
+    metavar="python_version",
+    action="callback",
+    callback=_handle_python_version,
+    type="str",
+    default=None,
+    help=dedent(
+        """\
+    The Python interpreter version to use for wheel and "Requires-Python"
+    compatibility checks. Defaults to a version derived from the running
+    interpreter. The version can be specified using up to three dot-separated
+    integers (e.g. "3" for 3.0.0, "3.7" for 3.7.0, or "3.7.3"). A major-minor
+    version can also be given as a string without dots (e.g. "37" for 3.7.0).
+    """
+    ),
+)
+
+
+implementation: Callable[..., Option] = partial(
+    Option,
+    "--implementation",
+    dest="implementation",
+    metavar="implementation",
+    default=None,
+    help=(
+        "Only use wheels compatible with Python "
+        "implementation , e.g. 'pp', 'jy', 'cp', "
+        " or 'ip'. If not specified, then the current "
+        "interpreter implementation is used.  Use 'py' to force "
+        "implementation-agnostic wheels."
+    ),
+)
+
+
+abis: Callable[..., Option] = partial(
+    Option,
+    "--abi",
+    dest="abis",
+    metavar="abi",
+    action="append",
+    default=None,
+    help=(
+        "Only use wheels compatible with Python abi , e.g. 'pypy_41'. "
+        "If not specified, then the current interpreter abi tag is used. "
+        "Use this option multiple times to specify multiple abis supported "
+        "by the target interpreter. Generally you will need to specify "
+        "--implementation, --platform, and --python-version when using this "
+        "option."
+    ),
+)
+
+
+def add_target_python_options(cmd_opts: OptionGroup) -> None:
+    cmd_opts.add_option(platforms())
+    cmd_opts.add_option(python_version())
+    cmd_opts.add_option(implementation())
+    cmd_opts.add_option(abis())
+
+
+def make_target_python(options: Values) -> TargetPython:
+    target_python = TargetPython(
+        platforms=options.platforms,
+        py_version_info=options.python_version,
+        abis=options.abis,
+        implementation=options.implementation,
+    )
+
+    return target_python
+
+
+def prefer_binary() -> Option:
+    return Option(
+        "--prefer-binary",
+        dest="prefer_binary",
+        action="store_true",
+        default=False,
+        help="Prefer older binary packages over newer source packages.",
+    )
+
+
+cache_dir: Callable[..., Option] = partial(
+    PipOption,
+    "--cache-dir",
+    dest="cache_dir",
+    default=USER_CACHE_DIR,
+    metavar="dir",
+    type="path",
+    help="Store the cache data in .",
+)
+
+
+def _handle_no_cache_dir(
+    option: Option, opt: str, value: str, parser: OptionParser
+) -> None:
+    """
+    Process a value provided for the --no-cache-dir option.
+
+    This is an optparse.Option callback for the --no-cache-dir option.
+    """
+    # The value argument will be None if --no-cache-dir is passed via the
+    # command-line, since the option doesn't accept arguments.  However,
+    # the value can be non-None if the option is triggered e.g. by an
+    # environment variable, like PIP_NO_CACHE_DIR=true.
+    if value is not None:
+        # Then parse the string value to get argument error-checking.
+        try:
+            strtobool(value)
+        except ValueError as exc:
+            raise_option_error(parser, option=option, msg=str(exc))
+
+    # Originally, setting PIP_NO_CACHE_DIR to a value that strtobool()
+    # converted to 0 (like "false" or "no") caused cache_dir to be disabled
+    # rather than enabled (logic would say the latter).  Thus, we disable
+    # the cache directory not just on values that parse to True, but (for
+    # backwards compatibility reasons) also on values that parse to False.
+    # In other words, always set it to False if the option is provided in
+    # some (valid) form.
+    parser.values.cache_dir = False
+
+
+no_cache: Callable[..., Option] = partial(
+    Option,
+    "--no-cache-dir",
+    dest="cache_dir",
+    action="callback",
+    callback=_handle_no_cache_dir,
+    help="Disable the cache.",
+)
+
+no_deps: Callable[..., Option] = partial(
+    Option,
+    "--no-deps",
+    "--no-dependencies",
+    dest="ignore_dependencies",
+    action="store_true",
+    default=False,
+    help="Don't install package dependencies.",
+)
+
+ignore_requires_python: Callable[..., Option] = partial(
+    Option,
+    "--ignore-requires-python",
+    dest="ignore_requires_python",
+    action="store_true",
+    help="Ignore the Requires-Python information.",
+)
+
+no_build_isolation: Callable[..., Option] = partial(
+    Option,
+    "--no-build-isolation",
+    dest="build_isolation",
+    action="store_false",
+    default=True,
+    help="Disable isolation when building a modern source distribution. "
+    "Build dependencies specified by PEP 518 must be already installed "
+    "if this option is used.",
+)
+
+
+def _handle_no_use_pep517(
+    option: Option, opt: str, value: str, parser: OptionParser
+) -> None:
+    """
+    Process a value provided for the --no-use-pep517 option.
+
+    This is an optparse.Option callback for the no_use_pep517 option.
+    """
+    # Since --no-use-pep517 doesn't accept arguments, the value argument
+    # will be None if --no-use-pep517 is passed via the command-line.
+    # However, the value can be non-None if the option is triggered e.g.
+    # by an environment variable, for example "PIP_NO_USE_PEP517=true".
+    if value is not None:
+        msg = """A value was passed for --no-use-pep517,
+        probably using either the PIP_NO_USE_PEP517 environment variable
+        or the "no-use-pep517" config file option. Use an appropriate value
+        of the PIP_USE_PEP517 environment variable or the "use-pep517"
+        config file option instead.
+        """
+        raise_option_error(parser, option=option, msg=msg)
+
+    # Otherwise, --no-use-pep517 was passed via the command-line.
+    parser.values.use_pep517 = False
+
+
+use_pep517: Any = partial(
+    Option,
+    "--use-pep517",
+    dest="use_pep517",
+    action="store_true",
+    default=None,
+    help="Use PEP 517 for building source distributions "
+    "(use --no-use-pep517 to force legacy behaviour).",
+)
+
+no_use_pep517: Any = partial(
+    Option,
+    "--no-use-pep517",
+    dest="use_pep517",
+    action="callback",
+    callback=_handle_no_use_pep517,
+    default=None,
+    help=SUPPRESS_HELP,
+)
+
+install_options: Callable[..., Option] = partial(
+    Option,
+    "--install-option",
+    dest="install_options",
+    action="append",
+    metavar="options",
+    help="Extra arguments to be supplied to the setup.py install "
+    'command (use like --install-option="--install-scripts=/usr/local/'
+    'bin"). Use multiple --install-option options to pass multiple '
+    "options to setup.py install. If you are using an option with a "
+    "directory path, be sure to use absolute path.",
+)
+
+build_options: Callable[..., Option] = partial(
+    Option,
+    "--build-option",
+    dest="build_options",
+    metavar="options",
+    action="append",
+    help="Extra arguments to be supplied to 'setup.py bdist_wheel'.",
+)
+
+global_options: Callable[..., Option] = partial(
+    Option,
+    "--global-option",
+    dest="global_options",
+    action="append",
+    metavar="options",
+    help="Extra global options to be supplied to the setup.py "
+    "call before the install or bdist_wheel command.",
+)
+
+no_clean: Callable[..., Option] = partial(
+    Option,
+    "--no-clean",
+    action="store_true",
+    default=False,
+    help="Don't clean up build directories.",
+)
+
+pre: Callable[..., Option] = partial(
+    Option,
+    "--pre",
+    action="store_true",
+    default=False,
+    help="Include pre-release and development versions. By default, "
+    "pip only finds stable versions.",
+)
+
+disable_pip_version_check: Callable[..., Option] = partial(
+    Option,
+    "--disable-pip-version-check",
+    dest="disable_pip_version_check",
+    action="store_true",
+    default=False,
+    help="Don't periodically check PyPI to determine whether a new version "
+    "of pip is available for download. Implied with --no-index.",
+)
+
+
+def _handle_merge_hash(
+    option: Option, opt_str: str, value: str, parser: OptionParser
+) -> None:
+    """Given a value spelled "algo:digest", append the digest to a list
+    pointed to in a dict by the algo name."""
+    if not parser.values.hashes:
+        parser.values.hashes = {}
+    try:
+        algo, digest = value.split(":", 1)
+    except ValueError:
+        parser.error(
+            "Arguments to {} must be a hash name "  # noqa
+            "followed by a value, like --hash=sha256:"
+            "abcde...".format(opt_str)
+        )
+    if algo not in STRONG_HASHES:
+        parser.error(
+            "Allowed hash algorithms for {} are {}.".format(  # noqa
+                opt_str, ", ".join(STRONG_HASHES)
+            )
+        )
+    parser.values.hashes.setdefault(algo, []).append(digest)
+
+
+hash: Callable[..., Option] = partial(
+    Option,
+    "--hash",
+    # Hash values eventually end up in InstallRequirement.hashes due to
+    # __dict__ copying in process_line().
+    dest="hashes",
+    action="callback",
+    callback=_handle_merge_hash,
+    type="string",
+    help="Verify that the package's archive matches this "
+    "hash before installing. Example: --hash=sha256:abcdef...",
+)
+
+
+require_hashes: Callable[..., Option] = partial(
+    Option,
+    "--require-hashes",
+    dest="require_hashes",
+    action="store_true",
+    default=False,
+    help="Require a hash to check each requirement against, for "
+    "repeatable installs. This option is implied when any package in a "
+    "requirements file has a --hash option.",
+)
+
+
+list_path: Callable[..., Option] = partial(
+    PipOption,
+    "--path",
+    dest="path",
+    type="path",
+    action="append",
+    help="Restrict to the specified installation path for listing "
+    "packages (can be used multiple times).",
+)
+
+
+def check_list_path_option(options: Values) -> None:
+    if options.path and (options.user or options.local):
+        raise CommandError("Cannot combine '--path' with '--user' or '--local'")
+
+
+list_exclude: Callable[..., Option] = partial(
+    PipOption,
+    "--exclude",
+    dest="excludes",
+    action="append",
+    metavar="package",
+    type="package_name",
+    help="Exclude specified package from the output",
+)
+
+
+no_python_version_warning: Callable[..., Option] = partial(
+    Option,
+    "--no-python-version-warning",
+    dest="no_python_version_warning",
+    action="store_true",
+    default=False,
+    help="Silence deprecation warnings for upcoming unsupported Pythons.",
+)
+
+
+use_new_feature: Callable[..., Option] = partial(
+    Option,
+    "--use-feature",
+    dest="features_enabled",
+    metavar="feature",
+    action="append",
+    default=[],
+    choices=["2020-resolver", "fast-deps", "in-tree-build"],
+    help="Enable new functionality, that may be backward incompatible.",
+)
+
+use_deprecated_feature: Callable[..., Option] = partial(
+    Option,
+    "--use-deprecated",
+    dest="deprecated_features_enabled",
+    metavar="feature",
+    action="append",
+    default=[],
+    choices=["legacy-resolver", "out-of-tree-build"],
+    help=("Enable deprecated functionality, that will be removed in the future."),
+)
+
+
+##########
+# groups #
+##########
+
+general_group: Dict[str, Any] = {
+    "name": "General Options",
+    "options": [
+        help_,
+        debug_mode,
+        isolated_mode,
+        require_virtualenv,
+        verbose,
+        version,
+        quiet,
+        log,
+        no_input,
+        proxy,
+        retries,
+        timeout,
+        exists_action,
+        trusted_host,
+        cert,
+        client_cert,
+        cache_dir,
+        no_cache,
+        disable_pip_version_check,
+        no_color,
+        no_python_version_warning,
+        use_new_feature,
+        use_deprecated_feature,
+    ],
+}
+
+index_group: Dict[str, Any] = {
+    "name": "Package Index Options",
+    "options": [
+        index_url,
+        extra_index_url,
+        no_index,
+        find_links,
+    ],
+}
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/command_context.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/command_context.py
new file mode 100644
index 0000000..ed68322
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/command_context.py
@@ -0,0 +1,27 @@
+from contextlib import ExitStack, contextmanager
+from typing import ContextManager, Iterator, TypeVar
+
+_T = TypeVar("_T", covariant=True)
+
+
+class CommandContextMixIn:
+    def __init__(self) -> None:
+        super().__init__()
+        self._in_main_context = False
+        self._main_context = ExitStack()
+
+    @contextmanager
+    def main_context(self) -> Iterator[None]:
+        assert not self._in_main_context
+
+        self._in_main_context = True
+        try:
+            with self._main_context:
+                yield
+        finally:
+            self._in_main_context = False
+
+    def enter_context(self, context_provider: ContextManager[_T]) -> _T:
+        assert self._in_main_context
+
+        return self._main_context.enter_context(context_provider)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/main.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/main.py
new file mode 100644
index 0000000..0e31221
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/main.py
@@ -0,0 +1,70 @@
+"""Primary application entrypoint.
+"""
+import locale
+import logging
+import os
+import sys
+from typing import List, Optional
+
+from pip._internal.cli.autocompletion import autocomplete
+from pip._internal.cli.main_parser import parse_command
+from pip._internal.commands import create_command
+from pip._internal.exceptions import PipError
+from pip._internal.utils import deprecation
+
+logger = logging.getLogger(__name__)
+
+
+# Do not import and use main() directly! Using it directly is actively
+# discouraged by pip's maintainers. The name, location and behavior of
+# this function is subject to change, so calling it directly is not
+# portable across different pip versions.
+
+# In addition, running pip in-process is unsupported and unsafe. This is
+# elaborated in detail at
+# https://pip.pypa.io/en/stable/user_guide/#using-pip-from-your-program.
+# That document also provides suggestions that should work for nearly
+# all users that are considering importing and using main() directly.
+
+# However, we know that certain users will still want to invoke pip
+# in-process. If you understand and accept the implications of using pip
+# in an unsupported manner, the best approach is to use runpy to avoid
+# depending on the exact location of this entry point.
+
+# The following example shows how to use runpy to invoke pip in that
+# case:
+#
+#     sys.argv = ["pip", your, args, here]
+#     runpy.run_module("pip", run_name="__main__")
+#
+# Note that this will exit the process after running, unlike a direct
+# call to main. As it is not safe to do any processing after calling
+# main, this should not be an issue in practice.
+
+
+def main(args: Optional[List[str]] = None) -> int:
+    if args is None:
+        args = sys.argv[1:]
+
+    # Configure our deprecation warnings to be sent through loggers
+    deprecation.install_warning_logger()
+
+    autocomplete()
+
+    try:
+        cmd_name, cmd_args = parse_command(args)
+    except PipError as exc:
+        sys.stderr.write(f"ERROR: {exc}")
+        sys.stderr.write(os.linesep)
+        sys.exit(1)
+
+    # Needed for locale.getpreferredencoding(False) to work
+    # in pip._internal.utils.encoding.auto_decode
+    try:
+        locale.setlocale(locale.LC_ALL, "")
+    except locale.Error as e:
+        # setlocale can apparently crash if locale are uninitialized
+        logger.debug("Ignoring error %s when setting locale", e)
+    command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
+
+    return command.main(cmd_args)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/main_parser.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/main_parser.py
new file mode 100644
index 0000000..3666ab0
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/main_parser.py
@@ -0,0 +1,87 @@
+"""A single place for constructing and exposing the main parser
+"""
+
+import os
+import sys
+from typing import List, Tuple
+
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.parser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
+from pip._internal.commands import commands_dict, get_similar_commands
+from pip._internal.exceptions import CommandError
+from pip._internal.utils.misc import get_pip_version, get_prog
+
+__all__ = ["create_main_parser", "parse_command"]
+
+
+def create_main_parser() -> ConfigOptionParser:
+    """Creates and returns the main parser for pip's CLI"""
+
+    parser = ConfigOptionParser(
+        usage="\n%prog  [options]",
+        add_help_option=False,
+        formatter=UpdatingDefaultsHelpFormatter(),
+        name="global",
+        prog=get_prog(),
+    )
+    parser.disable_interspersed_args()
+
+    parser.version = get_pip_version()
+
+    # add the general options
+    gen_opts = cmdoptions.make_option_group(cmdoptions.general_group, parser)
+    parser.add_option_group(gen_opts)
+
+    # so the help formatter knows
+    parser.main = True  # type: ignore
+
+    # create command listing for description
+    description = [""] + [
+        f"{name:27} {command_info.summary}"
+        for name, command_info in commands_dict.items()
+    ]
+    parser.description = "\n".join(description)
+
+    return parser
+
+
+def parse_command(args: List[str]) -> Tuple[str, List[str]]:
+    parser = create_main_parser()
+
+    # Note: parser calls disable_interspersed_args(), so the result of this
+    # call is to split the initial args into the general options before the
+    # subcommand and everything else.
+    # For example:
+    #  args: ['--timeout=5', 'install', '--user', 'INITools']
+    #  general_options: ['--timeout==5']
+    #  args_else: ['install', '--user', 'INITools']
+    general_options, args_else = parser.parse_args(args)
+
+    # --version
+    if general_options.version:
+        sys.stdout.write(parser.version)
+        sys.stdout.write(os.linesep)
+        sys.exit()
+
+    # pip || pip help -> print_help()
+    if not args_else or (args_else[0] == "help" and len(args_else) == 1):
+        parser.print_help()
+        sys.exit()
+
+    # the subcommand name
+    cmd_name = args_else[0]
+
+    if cmd_name not in commands_dict:
+        guess = get_similar_commands(cmd_name)
+
+        msg = [f'unknown command "{cmd_name}"']
+        if guess:
+            msg.append(f'maybe you meant "{guess}"')
+
+        raise CommandError(" - ".join(msg))
+
+    # all the args without the subcommand
+    cmd_args = args[:]
+    cmd_args.remove(cmd_name)
+
+    return cmd_name, cmd_args
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/parser.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/parser.py
new file mode 100644
index 0000000..a1c99a8
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/parser.py
@@ -0,0 +1,292 @@
+"""Base option parser setup"""
+
+import logging
+import optparse
+import shutil
+import sys
+import textwrap
+from contextlib import suppress
+from typing import Any, Dict, Iterator, List, Tuple
+
+from pip._internal.cli.status_codes import UNKNOWN_ERROR
+from pip._internal.configuration import Configuration, ConfigurationError
+from pip._internal.utils.misc import redact_auth_from_url, strtobool
+
+logger = logging.getLogger(__name__)
+
+
+class PrettyHelpFormatter(optparse.IndentedHelpFormatter):
+    """A prettier/less verbose help formatter for optparse."""
+
+    def __init__(self, *args: Any, **kwargs: Any) -> None:
+        # help position must be aligned with __init__.parseopts.description
+        kwargs["max_help_position"] = 30
+        kwargs["indent_increment"] = 1
+        kwargs["width"] = shutil.get_terminal_size()[0] - 2
+        super().__init__(*args, **kwargs)
+
+    def format_option_strings(self, option: optparse.Option) -> str:
+        return self._format_option_strings(option)
+
+    def _format_option_strings(
+        self, option: optparse.Option, mvarfmt: str = " <{}>", optsep: str = ", "
+    ) -> str:
+        """
+        Return a comma-separated list of option strings and metavars.
+
+        :param option:  tuple of (short opt, long opt), e.g: ('-f', '--format')
+        :param mvarfmt: metavar format string
+        :param optsep:  separator
+        """
+        opts = []
+
+        if option._short_opts:
+            opts.append(option._short_opts[0])
+        if option._long_opts:
+            opts.append(option._long_opts[0])
+        if len(opts) > 1:
+            opts.insert(1, optsep)
+
+        if option.takes_value():
+            assert option.dest is not None
+            metavar = option.metavar or option.dest.lower()
+            opts.append(mvarfmt.format(metavar.lower()))
+
+        return "".join(opts)
+
+    def format_heading(self, heading: str) -> str:
+        if heading == "Options":
+            return ""
+        return heading + ":\n"
+
+    def format_usage(self, usage: str) -> str:
+        """
+        Ensure there is only one newline between usage and the first heading
+        if there is no description.
+        """
+        msg = "\nUsage: {}\n".format(self.indent_lines(textwrap.dedent(usage), "  "))
+        return msg
+
+    def format_description(self, description: str) -> str:
+        # leave full control over description to us
+        if description:
+            if hasattr(self.parser, "main"):
+                label = "Commands"
+            else:
+                label = "Description"
+            # some doc strings have initial newlines, some don't
+            description = description.lstrip("\n")
+            # some doc strings have final newlines and spaces, some don't
+            description = description.rstrip()
+            # dedent, then reindent
+            description = self.indent_lines(textwrap.dedent(description), "  ")
+            description = f"{label}:\n{description}\n"
+            return description
+        else:
+            return ""
+
+    def format_epilog(self, epilog: str) -> str:
+        # leave full control over epilog to us
+        if epilog:
+            return epilog
+        else:
+            return ""
+
+    def indent_lines(self, text: str, indent: str) -> str:
+        new_lines = [indent + line for line in text.split("\n")]
+        return "\n".join(new_lines)
+
+
+class UpdatingDefaultsHelpFormatter(PrettyHelpFormatter):
+    """Custom help formatter for use in ConfigOptionParser.
+
+    This is updates the defaults before expanding them, allowing
+    them to show up correctly in the help listing.
+
+    Also redact auth from url type options
+    """
+
+    def expand_default(self, option: optparse.Option) -> str:
+        default_values = None
+        if self.parser is not None:
+            assert isinstance(self.parser, ConfigOptionParser)
+            self.parser._update_defaults(self.parser.defaults)
+            assert option.dest is not None
+            default_values = self.parser.defaults.get(option.dest)
+        help_text = super().expand_default(option)
+
+        if default_values and option.metavar == "URL":
+            if isinstance(default_values, str):
+                default_values = [default_values]
+
+            # If its not a list, we should abort and just return the help text
+            if not isinstance(default_values, list):
+                default_values = []
+
+            for val in default_values:
+                help_text = help_text.replace(val, redact_auth_from_url(val))
+
+        return help_text
+
+
+class CustomOptionParser(optparse.OptionParser):
+    def insert_option_group(
+        self, idx: int, *args: Any, **kwargs: Any
+    ) -> optparse.OptionGroup:
+        """Insert an OptionGroup at a given position."""
+        group = self.add_option_group(*args, **kwargs)
+
+        self.option_groups.pop()
+        self.option_groups.insert(idx, group)
+
+        return group
+
+    @property
+    def option_list_all(self) -> List[optparse.Option]:
+        """Get a list of all options, including those in option groups."""
+        res = self.option_list[:]
+        for i in self.option_groups:
+            res.extend(i.option_list)
+
+        return res
+
+
+class ConfigOptionParser(CustomOptionParser):
+    """Custom option parser which updates its defaults by checking the
+    configuration files and environmental variables"""
+
+    def __init__(
+        self,
+        *args: Any,
+        name: str,
+        isolated: bool = False,
+        **kwargs: Any,
+    ) -> None:
+        self.name = name
+        self.config = Configuration(isolated)
+
+        assert self.name
+        super().__init__(*args, **kwargs)
+
+    def check_default(self, option: optparse.Option, key: str, val: Any) -> Any:
+        try:
+            return option.check_value(key, val)
+        except optparse.OptionValueError as exc:
+            print(f"An error occurred during configuration: {exc}")
+            sys.exit(3)
+
+    def _get_ordered_configuration_items(self) -> Iterator[Tuple[str, Any]]:
+        # Configuration gives keys in an unordered manner. Order them.
+        override_order = ["global", self.name, ":env:"]
+
+        # Pool the options into different groups
+        section_items: Dict[str, List[Tuple[str, Any]]] = {
+            name: [] for name in override_order
+        }
+        for section_key, val in self.config.items():
+            # ignore empty values
+            if not val:
+                logger.debug(
+                    "Ignoring configuration key '%s' as it's value is empty.",
+                    section_key,
+                )
+                continue
+
+            section, key = section_key.split(".", 1)
+            if section in override_order:
+                section_items[section].append((key, val))
+
+        # Yield each group in their override order
+        for section in override_order:
+            for key, val in section_items[section]:
+                yield key, val
+
+    def _update_defaults(self, defaults: Dict[str, Any]) -> Dict[str, Any]:
+        """Updates the given defaults with values from the config files and
+        the environ. Does a little special handling for certain types of
+        options (lists)."""
+
+        # Accumulate complex default state.
+        self.values = optparse.Values(self.defaults)
+        late_eval = set()
+        # Then set the options with those values
+        for key, val in self._get_ordered_configuration_items():
+            # '--' because configuration supports only long names
+            option = self.get_option("--" + key)
+
+            # Ignore options not present in this parser. E.g. non-globals put
+            # in [global] by users that want them to apply to all applicable
+            # commands.
+            if option is None:
+                continue
+
+            assert option.dest is not None
+
+            if option.action in ("store_true", "store_false"):
+                try:
+                    val = strtobool(val)
+                except ValueError:
+                    self.error(
+                        "{} is not a valid value for {} option, "  # noqa
+                        "please specify a boolean value like yes/no, "
+                        "true/false or 1/0 instead.".format(val, key)
+                    )
+            elif option.action == "count":
+                with suppress(ValueError):
+                    val = strtobool(val)
+                with suppress(ValueError):
+                    val = int(val)
+                if not isinstance(val, int) or val < 0:
+                    self.error(
+                        "{} is not a valid value for {} option, "  # noqa
+                        "please instead specify either a non-negative integer "
+                        "or a boolean value like yes/no or false/true "
+                        "which is equivalent to 1/0.".format(val, key)
+                    )
+            elif option.action == "append":
+                val = val.split()
+                val = [self.check_default(option, key, v) for v in val]
+            elif option.action == "callback":
+                assert option.callback is not None
+                late_eval.add(option.dest)
+                opt_str = option.get_opt_string()
+                val = option.convert_value(opt_str, val)
+                # From take_action
+                args = option.callback_args or ()
+                kwargs = option.callback_kwargs or {}
+                option.callback(option, opt_str, val, self, *args, **kwargs)
+            else:
+                val = self.check_default(option, key, val)
+
+            defaults[option.dest] = val
+
+        for key in late_eval:
+            defaults[key] = getattr(self.values, key)
+        self.values = None
+        return defaults
+
+    def get_default_values(self) -> optparse.Values:
+        """Overriding to make updating the defaults after instantiation of
+        the option parser possible, _update_defaults() does the dirty work."""
+        if not self.process_default_values:
+            # Old, pre-Optik 1.5 behaviour.
+            return optparse.Values(self.defaults)
+
+        # Load the configuration, or error out in case of an error
+        try:
+            self.config.load()
+        except ConfigurationError as err:
+            self.exit(UNKNOWN_ERROR, str(err))
+
+        defaults = self._update_defaults(self.defaults.copy())  # ours
+        for option in self._get_all_options():
+            assert option.dest is not None
+            default = defaults.get(option.dest)
+            if isinstance(default, str):
+                opt_str = option.get_opt_string()
+                defaults[option.dest] = option.check_value(opt_str, default)
+        return optparse.Values(defaults)
+
+    def error(self, msg: str) -> None:
+        self.print_usage(sys.stderr)
+        self.exit(UNKNOWN_ERROR, f"{msg}\n")
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/progress_bars.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/progress_bars.py
new file mode 100644
index 0000000..f3db295
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/progress_bars.py
@@ -0,0 +1,250 @@
+import itertools
+import sys
+from signal import SIGINT, default_int_handler, signal
+from typing import Any
+
+from pip._vendor.progress.bar import Bar, FillingCirclesBar, IncrementalBar
+from pip._vendor.progress.spinner import Spinner
+
+from pip._internal.utils.compat import WINDOWS
+from pip._internal.utils.logging import get_indentation
+from pip._internal.utils.misc import format_size
+
+try:
+    from pip._vendor import colorama
+# Lots of different errors can come from this, including SystemError and
+# ImportError.
+except Exception:
+    colorama = None
+
+
+def _select_progress_class(preferred: Bar, fallback: Bar) -> Bar:
+    encoding = getattr(preferred.file, "encoding", None)
+
+    # If we don't know what encoding this file is in, then we'll just assume
+    # that it doesn't support unicode and use the ASCII bar.
+    if not encoding:
+        return fallback
+
+    # Collect all of the possible characters we want to use with the preferred
+    # bar.
+    characters = [
+        getattr(preferred, "empty_fill", ""),
+        getattr(preferred, "fill", ""),
+    ]
+    characters += list(getattr(preferred, "phases", []))
+
+    # Try to decode the characters we're using for the bar using the encoding
+    # of the given file, if this works then we'll assume that we can use the
+    # fancier bar and if not we'll fall back to the plaintext bar.
+    try:
+        "".join(characters).encode(encoding)
+    except UnicodeEncodeError:
+        return fallback
+    else:
+        return preferred
+
+
+_BaseBar: Any = _select_progress_class(IncrementalBar, Bar)
+
+
+class InterruptibleMixin:
+    """
+    Helper to ensure that self.finish() gets called on keyboard interrupt.
+
+    This allows downloads to be interrupted without leaving temporary state
+    (like hidden cursors) behind.
+
+    This class is similar to the progress library's existing SigIntMixin
+    helper, but as of version 1.2, that helper has the following problems:
+
+    1. It calls sys.exit().
+    2. It discards the existing SIGINT handler completely.
+    3. It leaves its own handler in place even after an uninterrupted finish,
+       which will have unexpected delayed effects if the user triggers an
+       unrelated keyboard interrupt some time after a progress-displaying
+       download has already completed, for example.
+    """
+
+    def __init__(self, *args: Any, **kwargs: Any) -> None:
+        """
+        Save the original SIGINT handler for later.
+        """
+        # https://github.com/python/mypy/issues/5887
+        super().__init__(*args, **kwargs)  # type: ignore
+
+        self.original_handler = signal(SIGINT, self.handle_sigint)
+
+        # If signal() returns None, the previous handler was not installed from
+        # Python, and we cannot restore it. This probably should not happen,
+        # but if it does, we must restore something sensible instead, at least.
+        # The least bad option should be Python's default SIGINT handler, which
+        # just raises KeyboardInterrupt.
+        if self.original_handler is None:
+            self.original_handler = default_int_handler
+
+    def finish(self) -> None:
+        """
+        Restore the original SIGINT handler after finishing.
+
+        This should happen regardless of whether the progress display finishes
+        normally, or gets interrupted.
+        """
+        super().finish()  # type: ignore
+        signal(SIGINT, self.original_handler)
+
+    def handle_sigint(self, signum, frame):  # type: ignore
+        """
+        Call self.finish() before delegating to the original SIGINT handler.
+
+        This handler should only be in place while the progress display is
+        active.
+        """
+        self.finish()
+        self.original_handler(signum, frame)
+
+
+class SilentBar(Bar):
+    def update(self) -> None:
+        pass
+
+
+class BlueEmojiBar(IncrementalBar):
+
+    suffix = "%(percent)d%%"
+    bar_prefix = " "
+    bar_suffix = " "
+    phases = ("\U0001F539", "\U0001F537", "\U0001F535")
+
+
+class DownloadProgressMixin:
+    def __init__(self, *args: Any, **kwargs: Any) -> None:
+        # https://github.com/python/mypy/issues/5887
+        super().__init__(*args, **kwargs)  # type: ignore
+        self.message: str = (" " * (get_indentation() + 2)) + self.message
+
+    @property
+    def downloaded(self) -> str:
+        return format_size(self.index)  # type: ignore
+
+    @property
+    def download_speed(self) -> str:
+        # Avoid zero division errors...
+        if self.avg == 0.0:  # type: ignore
+            return "..."
+        return format_size(1 / self.avg) + "/s"  # type: ignore
+
+    @property
+    def pretty_eta(self) -> str:
+        if self.eta:  # type: ignore
+            return f"eta {self.eta_td}"  # type: ignore
+        return ""
+
+    def iter(self, it):  # type: ignore
+        for x in it:
+            yield x
+            # B305 is incorrectly raised here
+            # https://github.com/PyCQA/flake8-bugbear/issues/59
+            self.next(len(x))  # noqa: B305
+        self.finish()
+
+
+class WindowsMixin:
+    def __init__(self, *args: Any, **kwargs: Any) -> None:
+        # The Windows terminal does not support the hide/show cursor ANSI codes
+        # even with colorama. So we'll ensure that hide_cursor is False on
+        # Windows.
+        # This call needs to go before the super() call, so that hide_cursor
+        # is set in time. The base progress bar class writes the "hide cursor"
+        # code to the terminal in its init, so if we don't set this soon
+        # enough, we get a "hide" with no corresponding "show"...
+        if WINDOWS and self.hide_cursor:  # type: ignore
+            self.hide_cursor = False
+
+        # https://github.com/python/mypy/issues/5887
+        super().__init__(*args, **kwargs)  # type: ignore
+
+        # Check if we are running on Windows and we have the colorama module,
+        # if we do then wrap our file with it.
+        if WINDOWS and colorama:
+            self.file = colorama.AnsiToWin32(self.file)  # type: ignore
+            # The progress code expects to be able to call self.file.isatty()
+            # but the colorama.AnsiToWin32() object doesn't have that, so we'll
+            # add it.
+            self.file.isatty = lambda: self.file.wrapped.isatty()
+            # The progress code expects to be able to call self.file.flush()
+            # but the colorama.AnsiToWin32() object doesn't have that, so we'll
+            # add it.
+            self.file.flush = lambda: self.file.wrapped.flush()
+
+
+class BaseDownloadProgressBar(WindowsMixin, InterruptibleMixin, DownloadProgressMixin):
+
+    file = sys.stdout
+    message = "%(percent)d%%"
+    suffix = "%(downloaded)s %(download_speed)s %(pretty_eta)s"
+
+
+class DefaultDownloadProgressBar(BaseDownloadProgressBar, _BaseBar):
+    pass
+
+
+class DownloadSilentBar(BaseDownloadProgressBar, SilentBar):
+    pass
+
+
+class DownloadBar(BaseDownloadProgressBar, Bar):
+    pass
+
+
+class DownloadFillingCirclesBar(BaseDownloadProgressBar, FillingCirclesBar):
+    pass
+
+
+class DownloadBlueEmojiProgressBar(BaseDownloadProgressBar, BlueEmojiBar):
+    pass
+
+
+class DownloadProgressSpinner(
+    WindowsMixin, InterruptibleMixin, DownloadProgressMixin, Spinner
+):
+
+    file = sys.stdout
+    suffix = "%(downloaded)s %(download_speed)s"
+
+    def next_phase(self) -> str:
+        if not hasattr(self, "_phaser"):
+            self._phaser = itertools.cycle(self.phases)
+        return next(self._phaser)
+
+    def update(self) -> None:
+        message = self.message % self
+        phase = self.next_phase()
+        suffix = self.suffix % self
+        line = "".join(
+            [
+                message,
+                " " if message else "",
+                phase,
+                " " if suffix else "",
+                suffix,
+            ]
+        )
+
+        self.writeln(line)
+
+
+BAR_TYPES = {
+    "off": (DownloadSilentBar, DownloadSilentBar),
+    "on": (DefaultDownloadProgressBar, DownloadProgressSpinner),
+    "ascii": (DownloadBar, DownloadProgressSpinner),
+    "pretty": (DownloadFillingCirclesBar, DownloadProgressSpinner),
+    "emoji": (DownloadBlueEmojiProgressBar, DownloadProgressSpinner),
+}
+
+
+def DownloadProgressProvider(progress_bar, max=None):  # type: ignore
+    if max is None or max == 0:
+        return BAR_TYPES[progress_bar][1]().iter
+    else:
+        return BAR_TYPES[progress_bar][0](max=max).iter
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/req_command.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/req_command.py
new file mode 100644
index 0000000..dbd15cb
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/req_command.py
@@ -0,0 +1,469 @@
+"""Contains the Command base classes that depend on PipSession.
+
+The classes in this module are in a separate module so the commands not
+needing download / PackageFinder capability don't unnecessarily import the
+PackageFinder machinery and all its vendored dependencies, etc.
+"""
+
+import logging
+import os
+import sys
+from functools import partial
+from optparse import Values
+from typing import Any, List, Optional, Tuple
+
+from pip._internal.cache import WheelCache
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.command_context import CommandContextMixIn
+from pip._internal.exceptions import CommandError, PreviousBuildDirError
+from pip._internal.index.collector import LinkCollector
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.models.selection_prefs import SelectionPreferences
+from pip._internal.models.target_python import TargetPython
+from pip._internal.network.session import PipSession
+from pip._internal.operations.prepare import RequirementPreparer
+from pip._internal.req.constructors import (
+    install_req_from_editable,
+    install_req_from_line,
+    install_req_from_parsed_requirement,
+    install_req_from_req_string,
+)
+from pip._internal.req.req_file import parse_requirements
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.req.req_tracker import RequirementTracker
+from pip._internal.resolution.base import BaseResolver
+from pip._internal.self_outdated_check import pip_self_version_check
+from pip._internal.utils.deprecation import deprecated
+from pip._internal.utils.temp_dir import (
+    TempDirectory,
+    TempDirectoryTypeRegistry,
+    tempdir_kinds,
+)
+from pip._internal.utils.virtualenv import running_under_virtualenv
+
+logger = logging.getLogger(__name__)
+
+
+class SessionCommandMixin(CommandContextMixIn):
+
+    """
+    A class mixin for command classes needing _build_session().
+    """
+
+    def __init__(self) -> None:
+        super().__init__()
+        self._session: Optional[PipSession] = None
+
+    @classmethod
+    def _get_index_urls(cls, options: Values) -> Optional[List[str]]:
+        """Return a list of index urls from user-provided options."""
+        index_urls = []
+        if not getattr(options, "no_index", False):
+            url = getattr(options, "index_url", None)
+            if url:
+                index_urls.append(url)
+        urls = getattr(options, "extra_index_urls", None)
+        if urls:
+            index_urls.extend(urls)
+        # Return None rather than an empty list
+        return index_urls or None
+
+    def get_default_session(self, options: Values) -> PipSession:
+        """Get a default-managed session."""
+        if self._session is None:
+            self._session = self.enter_context(self._build_session(options))
+            # there's no type annotation on requests.Session, so it's
+            # automatically ContextManager[Any] and self._session becomes Any,
+            # then https://github.com/python/mypy/issues/7696 kicks in
+            assert self._session is not None
+        return self._session
+
+    def _build_session(
+        self,
+        options: Values,
+        retries: Optional[int] = None,
+        timeout: Optional[int] = None,
+    ) -> PipSession:
+        assert not options.cache_dir or os.path.isabs(options.cache_dir)
+        session = PipSession(
+            cache=(
+                os.path.join(options.cache_dir, "http") if options.cache_dir else None
+            ),
+            retries=retries if retries is not None else options.retries,
+            trusted_hosts=options.trusted_hosts,
+            index_urls=self._get_index_urls(options),
+        )
+
+        # Handle custom ca-bundles from the user
+        if options.cert:
+            session.verify = options.cert
+
+        # Handle SSL client certificate
+        if options.client_cert:
+            session.cert = options.client_cert
+
+        # Handle timeouts
+        if options.timeout or timeout:
+            session.timeout = timeout if timeout is not None else options.timeout
+
+        # Handle configured proxies
+        if options.proxy:
+            session.proxies = {
+                "http": options.proxy,
+                "https": options.proxy,
+            }
+
+        # Determine if we can prompt the user for authentication or not
+        session.auth.prompting = not options.no_input
+
+        return session
+
+
+class IndexGroupCommand(Command, SessionCommandMixin):
+
+    """
+    Abstract base class for commands with the index_group options.
+
+    This also corresponds to the commands that permit the pip version check.
+    """
+
+    def handle_pip_version_check(self, options: Values) -> None:
+        """
+        Do the pip version check if not disabled.
+
+        This overrides the default behavior of not doing the check.
+        """
+        # Make sure the index_group options are present.
+        assert hasattr(options, "no_index")
+
+        if options.disable_pip_version_check or options.no_index:
+            return
+
+        # Otherwise, check if we're using the latest version of pip available.
+        session = self._build_session(
+            options, retries=0, timeout=min(5, options.timeout)
+        )
+        with session:
+            pip_self_version_check(session, options)
+
+
+KEEPABLE_TEMPDIR_TYPES = [
+    tempdir_kinds.BUILD_ENV,
+    tempdir_kinds.EPHEM_WHEEL_CACHE,
+    tempdir_kinds.REQ_BUILD,
+]
+
+
+def warn_if_run_as_root() -> None:
+    """Output a warning for sudo users on Unix.
+
+    In a virtual environment, sudo pip still writes to virtualenv.
+    On Windows, users may run pip as Administrator without issues.
+    This warning only applies to Unix root users outside of virtualenv.
+    """
+    if running_under_virtualenv():
+        return
+    if not hasattr(os, "getuid"):
+        return
+    # On Windows, there are no "system managed" Python packages. Installing as
+    # Administrator via pip is the correct way of updating system environments.
+    #
+    # We choose sys.platform over utils.compat.WINDOWS here to enable Mypy platform
+    # checks: https://mypy.readthedocs.io/en/stable/common_issues.html
+    if sys.platform == "win32" or sys.platform == "cygwin":
+        return
+
+    if os.getuid() != 0:
+        return
+
+    logger.warning(
+        "Running pip as the 'root' user can result in broken permissions and "
+        "conflicting behaviour with the system package manager. "
+        "It is recommended to use a virtual environment instead: "
+        "https://pip.pypa.io/warnings/venv"
+    )
+
+
+def with_cleanup(func: Any) -> Any:
+    """Decorator for common logic related to managing temporary
+    directories.
+    """
+
+    def configure_tempdir_registry(registry: TempDirectoryTypeRegistry) -> None:
+        for t in KEEPABLE_TEMPDIR_TYPES:
+            registry.set_delete(t, False)
+
+    def wrapper(
+        self: RequirementCommand, options: Values, args: List[Any]
+    ) -> Optional[int]:
+        assert self.tempdir_registry is not None
+        if options.no_clean:
+            configure_tempdir_registry(self.tempdir_registry)
+
+        try:
+            return func(self, options, args)
+        except PreviousBuildDirError:
+            # This kind of conflict can occur when the user passes an explicit
+            # build directory with a pre-existing folder. In that case we do
+            # not want to accidentally remove it.
+            configure_tempdir_registry(self.tempdir_registry)
+            raise
+
+    return wrapper
+
+
+class RequirementCommand(IndexGroupCommand):
+    def __init__(self, *args: Any, **kw: Any) -> None:
+        super().__init__(*args, **kw)
+
+        self.cmd_opts.add_option(cmdoptions.no_clean())
+
+    @staticmethod
+    def determine_resolver_variant(options: Values) -> str:
+        """Determines which resolver should be used, based on the given options."""
+        if "legacy-resolver" in options.deprecated_features_enabled:
+            return "legacy"
+
+        return "2020-resolver"
+
+    @classmethod
+    def make_requirement_preparer(
+        cls,
+        temp_build_dir: TempDirectory,
+        options: Values,
+        req_tracker: RequirementTracker,
+        session: PipSession,
+        finder: PackageFinder,
+        use_user_site: bool,
+        download_dir: Optional[str] = None,
+    ) -> RequirementPreparer:
+        """
+        Create a RequirementPreparer instance for the given parameters.
+        """
+        temp_build_dir_path = temp_build_dir.path
+        assert temp_build_dir_path is not None
+
+        resolver_variant = cls.determine_resolver_variant(options)
+        if resolver_variant == "2020-resolver":
+            lazy_wheel = "fast-deps" in options.features_enabled
+            if lazy_wheel:
+                logger.warning(
+                    "pip is using lazily downloaded wheels using HTTP "
+                    "range requests to obtain dependency information. "
+                    "This experimental feature is enabled through "
+                    "--use-feature=fast-deps and it is not ready for "
+                    "production."
+                )
+        else:
+            lazy_wheel = False
+            if "fast-deps" in options.features_enabled:
+                logger.warning(
+                    "fast-deps has no effect when used with the legacy resolver."
+                )
+
+        in_tree_build = "out-of-tree-build" not in options.deprecated_features_enabled
+        if "in-tree-build" in options.features_enabled:
+            deprecated(
+                reason="In-tree builds are now the default.",
+                replacement="to remove the --use-feature=in-tree-build flag",
+                gone_in="22.1",
+            )
+        if "out-of-tree-build" in options.deprecated_features_enabled:
+            deprecated(
+                reason="Out-of-tree builds are deprecated.",
+                replacement=None,
+                gone_in="22.1",
+            )
+
+        return RequirementPreparer(
+            build_dir=temp_build_dir_path,
+            src_dir=options.src_dir,
+            download_dir=download_dir,
+            build_isolation=options.build_isolation,
+            req_tracker=req_tracker,
+            session=session,
+            progress_bar=options.progress_bar,
+            finder=finder,
+            require_hashes=options.require_hashes,
+            use_user_site=use_user_site,
+            lazy_wheel=lazy_wheel,
+            in_tree_build=in_tree_build,
+        )
+
+    @classmethod
+    def make_resolver(
+        cls,
+        preparer: RequirementPreparer,
+        finder: PackageFinder,
+        options: Values,
+        wheel_cache: Optional[WheelCache] = None,
+        use_user_site: bool = False,
+        ignore_installed: bool = True,
+        ignore_requires_python: bool = False,
+        force_reinstall: bool = False,
+        upgrade_strategy: str = "to-satisfy-only",
+        use_pep517: Optional[bool] = None,
+        py_version_info: Optional[Tuple[int, ...]] = None,
+    ) -> BaseResolver:
+        """
+        Create a Resolver instance for the given parameters.
+        """
+        make_install_req = partial(
+            install_req_from_req_string,
+            isolated=options.isolated_mode,
+            use_pep517=use_pep517,
+        )
+        resolver_variant = cls.determine_resolver_variant(options)
+        # The long import name and duplicated invocation is needed to convince
+        # Mypy into correctly typechecking. Otherwise it would complain the
+        # "Resolver" class being redefined.
+        if resolver_variant == "2020-resolver":
+            import pip._internal.resolution.resolvelib.resolver
+
+            return pip._internal.resolution.resolvelib.resolver.Resolver(
+                preparer=preparer,
+                finder=finder,
+                wheel_cache=wheel_cache,
+                make_install_req=make_install_req,
+                use_user_site=use_user_site,
+                ignore_dependencies=options.ignore_dependencies,
+                ignore_installed=ignore_installed,
+                ignore_requires_python=ignore_requires_python,
+                force_reinstall=force_reinstall,
+                upgrade_strategy=upgrade_strategy,
+                py_version_info=py_version_info,
+            )
+        import pip._internal.resolution.legacy.resolver
+
+        return pip._internal.resolution.legacy.resolver.Resolver(
+            preparer=preparer,
+            finder=finder,
+            wheel_cache=wheel_cache,
+            make_install_req=make_install_req,
+            use_user_site=use_user_site,
+            ignore_dependencies=options.ignore_dependencies,
+            ignore_installed=ignore_installed,
+            ignore_requires_python=ignore_requires_python,
+            force_reinstall=force_reinstall,
+            upgrade_strategy=upgrade_strategy,
+            py_version_info=py_version_info,
+        )
+
+    def get_requirements(
+        self,
+        args: List[str],
+        options: Values,
+        finder: PackageFinder,
+        session: PipSession,
+    ) -> List[InstallRequirement]:
+        """
+        Parse command-line arguments into the corresponding requirements.
+        """
+        requirements: List[InstallRequirement] = []
+        for filename in options.constraints:
+            for parsed_req in parse_requirements(
+                filename,
+                constraint=True,
+                finder=finder,
+                options=options,
+                session=session,
+            ):
+                req_to_add = install_req_from_parsed_requirement(
+                    parsed_req,
+                    isolated=options.isolated_mode,
+                    user_supplied=False,
+                )
+                requirements.append(req_to_add)
+
+        for req in args:
+            req_to_add = install_req_from_line(
+                req,
+                None,
+                isolated=options.isolated_mode,
+                use_pep517=options.use_pep517,
+                user_supplied=True,
+            )
+            requirements.append(req_to_add)
+
+        for req in options.editables:
+            req_to_add = install_req_from_editable(
+                req,
+                user_supplied=True,
+                isolated=options.isolated_mode,
+                use_pep517=options.use_pep517,
+            )
+            requirements.append(req_to_add)
+
+        # NOTE: options.require_hashes may be set if --require-hashes is True
+        for filename in options.requirements:
+            for parsed_req in parse_requirements(
+                filename, finder=finder, options=options, session=session
+            ):
+                req_to_add = install_req_from_parsed_requirement(
+                    parsed_req,
+                    isolated=options.isolated_mode,
+                    use_pep517=options.use_pep517,
+                    user_supplied=True,
+                )
+                requirements.append(req_to_add)
+
+        # If any requirement has hash options, enable hash checking.
+        if any(req.has_hash_options for req in requirements):
+            options.require_hashes = True
+
+        if not (args or options.editables or options.requirements):
+            opts = {"name": self.name}
+            if options.find_links:
+                raise CommandError(
+                    "You must give at least one requirement to {name} "
+                    '(maybe you meant "pip {name} {links}"?)'.format(
+                        **dict(opts, links=" ".join(options.find_links))
+                    )
+                )
+            else:
+                raise CommandError(
+                    "You must give at least one requirement to {name} "
+                    '(see "pip help {name}")'.format(**opts)
+                )
+
+        return requirements
+
+    @staticmethod
+    def trace_basic_info(finder: PackageFinder) -> None:
+        """
+        Trace basic information about the provided objects.
+        """
+        # Display where finder is looking for packages
+        search_scope = finder.search_scope
+        locations = search_scope.get_formatted_locations()
+        if locations:
+            logger.info(locations)
+
+    def _build_package_finder(
+        self,
+        options: Values,
+        session: PipSession,
+        target_python: Optional[TargetPython] = None,
+        ignore_requires_python: Optional[bool] = None,
+    ) -> PackageFinder:
+        """
+        Create a package finder appropriate to this requirement command.
+
+        :param ignore_requires_python: Whether to ignore incompatible
+            "Requires-Python" values in links. Defaults to False.
+        """
+        link_collector = LinkCollector.create(session, options=options)
+        selection_prefs = SelectionPreferences(
+            allow_yanked=True,
+            format_control=options.format_control,
+            allow_all_prereleases=options.pre,
+            prefer_binary=options.prefer_binary,
+            ignore_requires_python=ignore_requires_python,
+        )
+
+        return PackageFinder.create(
+            link_collector=link_collector,
+            selection_prefs=selection_prefs,
+            target_python=target_python,
+        )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/spinners.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/spinners.py
new file mode 100644
index 0000000..1e313e1
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/spinners.py
@@ -0,0 +1,157 @@
+import contextlib
+import itertools
+import logging
+import sys
+import time
+from typing import IO, Iterator
+
+from pip._vendor.progress import HIDE_CURSOR, SHOW_CURSOR
+
+from pip._internal.utils.compat import WINDOWS
+from pip._internal.utils.logging import get_indentation
+
+logger = logging.getLogger(__name__)
+
+
+class SpinnerInterface:
+    def spin(self) -> None:
+        raise NotImplementedError()
+
+    def finish(self, final_status: str) -> None:
+        raise NotImplementedError()
+
+
+class InteractiveSpinner(SpinnerInterface):
+    def __init__(
+        self,
+        message: str,
+        file: IO[str] = None,
+        spin_chars: str = "-\\|/",
+        # Empirically, 8 updates/second looks nice
+        min_update_interval_seconds: float = 0.125,
+    ):
+        self._message = message
+        if file is None:
+            file = sys.stdout
+        self._file = file
+        self._rate_limiter = RateLimiter(min_update_interval_seconds)
+        self._finished = False
+
+        self._spin_cycle = itertools.cycle(spin_chars)
+
+        self._file.write(" " * get_indentation() + self._message + " ... ")
+        self._width = 0
+
+    def _write(self, status: str) -> None:
+        assert not self._finished
+        # Erase what we wrote before by backspacing to the beginning, writing
+        # spaces to overwrite the old text, and then backspacing again
+        backup = "\b" * self._width
+        self._file.write(backup + " " * self._width + backup)
+        # Now we have a blank slate to add our status
+        self._file.write(status)
+        self._width = len(status)
+        self._file.flush()
+        self._rate_limiter.reset()
+
+    def spin(self) -> None:
+        if self._finished:
+            return
+        if not self._rate_limiter.ready():
+            return
+        self._write(next(self._spin_cycle))
+
+    def finish(self, final_status: str) -> None:
+        if self._finished:
+            return
+        self._write(final_status)
+        self._file.write("\n")
+        self._file.flush()
+        self._finished = True
+
+
+# Used for dumb terminals, non-interactive installs (no tty), etc.
+# We still print updates occasionally (once every 60 seconds by default) to
+# act as a keep-alive for systems like Travis-CI that take lack-of-output as
+# an indication that a task has frozen.
+class NonInteractiveSpinner(SpinnerInterface):
+    def __init__(self, message: str, min_update_interval_seconds: float = 60.0) -> None:
+        self._message = message
+        self._finished = False
+        self._rate_limiter = RateLimiter(min_update_interval_seconds)
+        self._update("started")
+
+    def _update(self, status: str) -> None:
+        assert not self._finished
+        self._rate_limiter.reset()
+        logger.info("%s: %s", self._message, status)
+
+    def spin(self) -> None:
+        if self._finished:
+            return
+        if not self._rate_limiter.ready():
+            return
+        self._update("still running...")
+
+    def finish(self, final_status: str) -> None:
+        if self._finished:
+            return
+        self._update(f"finished with status '{final_status}'")
+        self._finished = True
+
+
+class RateLimiter:
+    def __init__(self, min_update_interval_seconds: float) -> None:
+        self._min_update_interval_seconds = min_update_interval_seconds
+        self._last_update: float = 0
+
+    def ready(self) -> bool:
+        now = time.time()
+        delta = now - self._last_update
+        return delta >= self._min_update_interval_seconds
+
+    def reset(self) -> None:
+        self._last_update = time.time()
+
+
+@contextlib.contextmanager
+def open_spinner(message: str) -> Iterator[SpinnerInterface]:
+    # Interactive spinner goes directly to sys.stdout rather than being routed
+    # through the logging system, but it acts like it has level INFO,
+    # i.e. it's only displayed if we're at level INFO or better.
+    # Non-interactive spinner goes through the logging system, so it is always
+    # in sync with logging configuration.
+    if sys.stdout.isatty() and logger.getEffectiveLevel() <= logging.INFO:
+        spinner: SpinnerInterface = InteractiveSpinner(message)
+    else:
+        spinner = NonInteractiveSpinner(message)
+    try:
+        with hidden_cursor(sys.stdout):
+            yield spinner
+    except KeyboardInterrupt:
+        spinner.finish("canceled")
+        raise
+    except Exception:
+        spinner.finish("error")
+        raise
+    else:
+        spinner.finish("done")
+
+
+@contextlib.contextmanager
+def hidden_cursor(file: IO[str]) -> Iterator[None]:
+    # The Windows terminal does not support the hide/show cursor ANSI codes,
+    # even via colorama. So don't even try.
+    if WINDOWS:
+        yield
+    # We don't want to clutter the output with control characters if we're
+    # writing to a file, or if the user is running with --quiet.
+    # See https://github.com/pypa/pip/issues/3418
+    elif not file.isatty() or logger.getEffectiveLevel() > logging.INFO:
+        yield
+    else:
+        file.write(HIDE_CURSOR)
+        try:
+            yield
+        finally:
+            file.write(SHOW_CURSOR)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/cli/status_codes.py b/utils/python-venv/Lib/site-packages/pip/_internal/cli/status_codes.py
new file mode 100644
index 0000000..5e29502
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/cli/status_codes.py
@@ -0,0 +1,6 @@
+SUCCESS = 0
+ERROR = 1
+UNKNOWN_ERROR = 2
+VIRTUALENV_NOT_FOUND = 3
+PREVIOUS_BUILD_DIR_ERROR = 4
+NO_MATCHES_FOUND = 23
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/__init__.py
new file mode 100644
index 0000000..c72f24f
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/__init__.py
@@ -0,0 +1,127 @@
+"""
+Package containing all pip commands
+"""
+
+import importlib
+from collections import namedtuple
+from typing import Any, Dict, Optional
+
+from pip._internal.cli.base_command import Command
+
+CommandInfo = namedtuple("CommandInfo", "module_path, class_name, summary")
+
+# This dictionary does a bunch of heavy lifting for help output:
+# - Enables avoiding additional (costly) imports for presenting `--help`.
+# - The ordering matters for help display.
+#
+# Even though the module path starts with the same "pip._internal.commands"
+# prefix, the full path makes testing easier (specifically when modifying
+# `commands_dict` in test setup / teardown).
+commands_dict: Dict[str, CommandInfo] = {
+    "install": CommandInfo(
+        "pip._internal.commands.install",
+        "InstallCommand",
+        "Install packages.",
+    ),
+    "download": CommandInfo(
+        "pip._internal.commands.download",
+        "DownloadCommand",
+        "Download packages.",
+    ),
+    "uninstall": CommandInfo(
+        "pip._internal.commands.uninstall",
+        "UninstallCommand",
+        "Uninstall packages.",
+    ),
+    "freeze": CommandInfo(
+        "pip._internal.commands.freeze",
+        "FreezeCommand",
+        "Output installed packages in requirements format.",
+    ),
+    "list": CommandInfo(
+        "pip._internal.commands.list",
+        "ListCommand",
+        "List installed packages.",
+    ),
+    "show": CommandInfo(
+        "pip._internal.commands.show",
+        "ShowCommand",
+        "Show information about installed packages.",
+    ),
+    "check": CommandInfo(
+        "pip._internal.commands.check",
+        "CheckCommand",
+        "Verify installed packages have compatible dependencies.",
+    ),
+    "config": CommandInfo(
+        "pip._internal.commands.configuration",
+        "ConfigurationCommand",
+        "Manage local and global configuration.",
+    ),
+    "search": CommandInfo(
+        "pip._internal.commands.search",
+        "SearchCommand",
+        "Search PyPI for packages.",
+    ),
+    "cache": CommandInfo(
+        "pip._internal.commands.cache",
+        "CacheCommand",
+        "Inspect and manage pip's wheel cache.",
+    ),
+    "index": CommandInfo(
+        "pip._internal.commands.index",
+        "IndexCommand",
+        "Inspect information available from package indexes.",
+    ),
+    "wheel": CommandInfo(
+        "pip._internal.commands.wheel",
+        "WheelCommand",
+        "Build wheels from your requirements.",
+    ),
+    "hash": CommandInfo(
+        "pip._internal.commands.hash",
+        "HashCommand",
+        "Compute hashes of package archives.",
+    ),
+    "completion": CommandInfo(
+        "pip._internal.commands.completion",
+        "CompletionCommand",
+        "A helper command used for command completion.",
+    ),
+    "debug": CommandInfo(
+        "pip._internal.commands.debug",
+        "DebugCommand",
+        "Show information useful for debugging.",
+    ),
+    "help": CommandInfo(
+        "pip._internal.commands.help",
+        "HelpCommand",
+        "Show help for commands.",
+    ),
+}
+
+
+def create_command(name: str, **kwargs: Any) -> Command:
+    """
+    Create an instance of the Command class with the given name.
+    """
+    module_path, class_name, summary = commands_dict[name]
+    module = importlib.import_module(module_path)
+    command_class = getattr(module, class_name)
+    command = command_class(name=name, summary=summary, **kwargs)
+
+    return command
+
+
+def get_similar_commands(name: str) -> Optional[str]:
+    """Command name auto-correct."""
+    from difflib import get_close_matches
+
+    name = name.lower()
+
+    close_commands = get_close_matches(name, commands_dict.keys())
+
+    if close_commands:
+        return close_commands[0]
+    else:
+        return None
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/cache.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/cache.py
new file mode 100644
index 0000000..f1a489d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/cache.py
@@ -0,0 +1,223 @@
+import os
+import textwrap
+from optparse import Values
+from typing import Any, List
+
+import pip._internal.utils.filesystem as filesystem
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import ERROR, SUCCESS
+from pip._internal.exceptions import CommandError, PipError
+from pip._internal.utils.logging import getLogger
+
+logger = getLogger(__name__)
+
+
+class CacheCommand(Command):
+    """
+    Inspect and manage pip's wheel cache.
+
+    Subcommands:
+
+    - dir: Show the cache directory.
+    - info: Show information about the cache.
+    - list: List filenames of packages stored in the cache.
+    - remove: Remove one or more package from the cache.
+    - purge: Remove all items from the cache.
+
+    ```` can be a glob expression or a package name.
+    """
+
+    ignore_require_venv = True
+    usage = """
+        %prog dir
+        %prog info
+        %prog list [] [--format=[human, abspath]]
+        %prog remove 
+        %prog purge
+    """
+
+    def add_options(self) -> None:
+
+        self.cmd_opts.add_option(
+            "--format",
+            action="store",
+            dest="list_format",
+            default="human",
+            choices=("human", "abspath"),
+            help="Select the output format among: human (default) or abspath",
+        )
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options: Values, args: List[str]) -> int:
+        handlers = {
+            "dir": self.get_cache_dir,
+            "info": self.get_cache_info,
+            "list": self.list_cache_items,
+            "remove": self.remove_cache_items,
+            "purge": self.purge_cache,
+        }
+
+        if not options.cache_dir:
+            logger.error("pip cache commands can not function since cache is disabled.")
+            return ERROR
+
+        # Determine action
+        if not args or args[0] not in handlers:
+            logger.error(
+                "Need an action (%s) to perform.",
+                ", ".join(sorted(handlers)),
+            )
+            return ERROR
+
+        action = args[0]
+
+        # Error handling happens here, not in the action-handlers.
+        try:
+            handlers[action](options, args[1:])
+        except PipError as e:
+            logger.error(e.args[0])
+            return ERROR
+
+        return SUCCESS
+
+    def get_cache_dir(self, options: Values, args: List[Any]) -> None:
+        if args:
+            raise CommandError("Too many arguments")
+
+        logger.info(options.cache_dir)
+
+    def get_cache_info(self, options: Values, args: List[Any]) -> None:
+        if args:
+            raise CommandError("Too many arguments")
+
+        num_http_files = len(self._find_http_files(options))
+        num_packages = len(self._find_wheels(options, "*"))
+
+        http_cache_location = self._cache_dir(options, "http")
+        wheels_cache_location = self._cache_dir(options, "wheels")
+        http_cache_size = filesystem.format_directory_size(http_cache_location)
+        wheels_cache_size = filesystem.format_directory_size(wheels_cache_location)
+
+        message = (
+            textwrap.dedent(
+                """
+                    Package index page cache location: {http_cache_location}
+                    Package index page cache size: {http_cache_size}
+                    Number of HTTP files: {num_http_files}
+                    Wheels location: {wheels_cache_location}
+                    Wheels size: {wheels_cache_size}
+                    Number of wheels: {package_count}
+                """
+            )
+            .format(
+                http_cache_location=http_cache_location,
+                http_cache_size=http_cache_size,
+                num_http_files=num_http_files,
+                wheels_cache_location=wheels_cache_location,
+                package_count=num_packages,
+                wheels_cache_size=wheels_cache_size,
+            )
+            .strip()
+        )
+
+        logger.info(message)
+
+    def list_cache_items(self, options: Values, args: List[Any]) -> None:
+        if len(args) > 1:
+            raise CommandError("Too many arguments")
+
+        if args:
+            pattern = args[0]
+        else:
+            pattern = "*"
+
+        files = self._find_wheels(options, pattern)
+        if options.list_format == "human":
+            self.format_for_human(files)
+        else:
+            self.format_for_abspath(files)
+
+    def format_for_human(self, files: List[str]) -> None:
+        if not files:
+            logger.info("Nothing cached.")
+            return
+
+        results = []
+        for filename in files:
+            wheel = os.path.basename(filename)
+            size = filesystem.format_file_size(filename)
+            results.append(f" - {wheel} ({size})")
+        logger.info("Cache contents:\n")
+        logger.info("\n".join(sorted(results)))
+
+    def format_for_abspath(self, files: List[str]) -> None:
+        if not files:
+            return
+
+        results = []
+        for filename in files:
+            results.append(filename)
+
+        logger.info("\n".join(sorted(results)))
+
+    def remove_cache_items(self, options: Values, args: List[Any]) -> None:
+        if len(args) > 1:
+            raise CommandError("Too many arguments")
+
+        if not args:
+            raise CommandError("Please provide a pattern")
+
+        files = self._find_wheels(options, args[0])
+
+        no_matching_msg = "No matching packages"
+        if args[0] == "*":
+            # Only fetch http files if no specific pattern given
+            files += self._find_http_files(options)
+        else:
+            # Add the pattern to the log message
+            no_matching_msg += ' for pattern "{}"'.format(args[0])
+
+        if not files:
+            logger.warning(no_matching_msg)
+
+        for filename in files:
+            os.unlink(filename)
+            logger.verbose("Removed %s", filename)
+        logger.info("Files removed: %s", len(files))
+
+    def purge_cache(self, options: Values, args: List[Any]) -> None:
+        if args:
+            raise CommandError("Too many arguments")
+
+        return self.remove_cache_items(options, ["*"])
+
+    def _cache_dir(self, options: Values, subdir: str) -> str:
+        return os.path.join(options.cache_dir, subdir)
+
+    def _find_http_files(self, options: Values) -> List[str]:
+        http_dir = self._cache_dir(options, "http")
+        return filesystem.find_files(http_dir, "*")
+
+    def _find_wheels(self, options: Values, pattern: str) -> List[str]:
+        wheel_dir = self._cache_dir(options, "wheels")
+
+        # The wheel filename format, as specified in PEP 427, is:
+        #     {distribution}-{version}(-{build})?-{python}-{abi}-{platform}.whl
+        #
+        # Additionally, non-alphanumeric values in the distribution are
+        # normalized to underscores (_), meaning hyphens can never occur
+        # before `-{version}`.
+        #
+        # Given that information:
+        # - If the pattern we're given contains a hyphen (-), the user is
+        #   providing at least the version. Thus, we can just append `*.whl`
+        #   to match the rest of it.
+        # - If the pattern we're given doesn't contain a hyphen (-), the
+        #   user is only providing the name. Thus, we append `-*.whl` to
+        #   match the hyphen before the version, followed by anything else.
+        #
+        # PEP 427: https://www.python.org/dev/peps/pep-0427/
+        pattern = pattern + ("*.whl" if "-" in pattern else "-*.whl")
+
+        return filesystem.find_files(wheel_dir, pattern)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/check.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/check.py
new file mode 100644
index 0000000..3864220
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/check.py
@@ -0,0 +1,53 @@
+import logging
+from optparse import Values
+from typing import List
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import ERROR, SUCCESS
+from pip._internal.operations.check import (
+    check_package_set,
+    create_package_set_from_installed,
+)
+from pip._internal.utils.misc import write_output
+
+logger = logging.getLogger(__name__)
+
+
+class CheckCommand(Command):
+    """Verify installed packages have compatible dependencies."""
+
+    usage = """
+      %prog [options]"""
+
+    def run(self, options: Values, args: List[str]) -> int:
+
+        package_set, parsing_probs = create_package_set_from_installed()
+        missing, conflicting = check_package_set(package_set)
+
+        for project_name in missing:
+            version = package_set[project_name].version
+            for dependency in missing[project_name]:
+                write_output(
+                    "%s %s requires %s, which is not installed.",
+                    project_name,
+                    version,
+                    dependency[0],
+                )
+
+        for project_name in conflicting:
+            version = package_set[project_name].version
+            for dep_name, dep_version, req in conflicting[project_name]:
+                write_output(
+                    "%s %s has requirement %s, but you have %s %s.",
+                    project_name,
+                    version,
+                    req,
+                    dep_name,
+                    dep_version,
+                )
+
+        if missing or conflicting or parsing_probs:
+            return ERROR
+        else:
+            write_output("No broken requirements found.")
+            return SUCCESS
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/completion.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/completion.py
new file mode 100644
index 0000000..c0fb4ca
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/completion.py
@@ -0,0 +1,96 @@
+import sys
+import textwrap
+from optparse import Values
+from typing import List
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import SUCCESS
+from pip._internal.utils.misc import get_prog
+
+BASE_COMPLETION = """
+# pip {shell} completion start{script}# pip {shell} completion end
+"""
+
+COMPLETION_SCRIPTS = {
+    "bash": """
+        _pip_completion()
+        {{
+            COMPREPLY=( $( COMP_WORDS="${{COMP_WORDS[*]}}" \\
+                           COMP_CWORD=$COMP_CWORD \\
+                           PIP_AUTO_COMPLETE=1 $1 2>/dev/null ) )
+        }}
+        complete -o default -F _pip_completion {prog}
+    """,
+    "zsh": """
+        function _pip_completion {{
+          local words cword
+          read -Ac words
+          read -cn cword
+          reply=( $( COMP_WORDS="$words[*]" \\
+                     COMP_CWORD=$(( cword-1 )) \\
+                     PIP_AUTO_COMPLETE=1 $words[1] 2>/dev/null ))
+        }}
+        compctl -K _pip_completion {prog}
+    """,
+    "fish": """
+        function __fish_complete_pip
+            set -lx COMP_WORDS (commandline -o) ""
+            set -lx COMP_CWORD ( \\
+                math (contains -i -- (commandline -t) $COMP_WORDS)-1 \\
+            )
+            set -lx PIP_AUTO_COMPLETE 1
+            string split \\  -- (eval $COMP_WORDS[1])
+        end
+        complete -fa "(__fish_complete_pip)" -c {prog}
+    """,
+}
+
+
+class CompletionCommand(Command):
+    """A helper command to be used for command completion."""
+
+    ignore_require_venv = True
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(
+            "--bash",
+            "-b",
+            action="store_const",
+            const="bash",
+            dest="shell",
+            help="Emit completion code for bash",
+        )
+        self.cmd_opts.add_option(
+            "--zsh",
+            "-z",
+            action="store_const",
+            const="zsh",
+            dest="shell",
+            help="Emit completion code for zsh",
+        )
+        self.cmd_opts.add_option(
+            "--fish",
+            "-f",
+            action="store_const",
+            const="fish",
+            dest="shell",
+            help="Emit completion code for fish",
+        )
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options: Values, args: List[str]) -> int:
+        """Prints the completion code of the given shell"""
+        shells = COMPLETION_SCRIPTS.keys()
+        shell_options = ["--" + shell for shell in sorted(shells)]
+        if options.shell in shells:
+            script = textwrap.dedent(
+                COMPLETION_SCRIPTS.get(options.shell, "").format(prog=get_prog())
+            )
+            print(BASE_COMPLETION.format(script=script, shell=options.shell))
+            return SUCCESS
+        else:
+            sys.stderr.write(
+                "ERROR: You must pass {}\n".format(" or ".join(shell_options))
+            )
+            return SUCCESS
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/configuration.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/configuration.py
new file mode 100644
index 0000000..c6c74ed
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/configuration.py
@@ -0,0 +1,266 @@
+import logging
+import os
+import subprocess
+from optparse import Values
+from typing import Any, List, Optional
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import ERROR, SUCCESS
+from pip._internal.configuration import (
+    Configuration,
+    Kind,
+    get_configuration_files,
+    kinds,
+)
+from pip._internal.exceptions import PipError
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import get_prog, write_output
+
+logger = logging.getLogger(__name__)
+
+
+class ConfigurationCommand(Command):
+    """
+    Manage local and global configuration.
+
+    Subcommands:
+
+    - list: List the active configuration (or from the file specified)
+    - edit: Edit the configuration file in an editor
+    - get: Get the value associated with name
+    - set: Set the name=value
+    - unset: Unset the value associated with name
+    - debug: List the configuration files and values defined under them
+
+    If none of --user, --global and --site are passed, a virtual
+    environment configuration file is used if one is active and the file
+    exists. Otherwise, all modifications happen to the user file by
+    default.
+    """
+
+    ignore_require_venv = True
+    usage = """
+        %prog [] list
+        %prog [] [--editor ] edit
+
+        %prog [] get name
+        %prog [] set name value
+        %prog [] unset name
+        %prog [] debug
+    """
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(
+            "--editor",
+            dest="editor",
+            action="store",
+            default=None,
+            help=(
+                "Editor to use to edit the file. Uses VISUAL or EDITOR "
+                "environment variables if not provided."
+            ),
+        )
+
+        self.cmd_opts.add_option(
+            "--global",
+            dest="global_file",
+            action="store_true",
+            default=False,
+            help="Use the system-wide configuration file only",
+        )
+
+        self.cmd_opts.add_option(
+            "--user",
+            dest="user_file",
+            action="store_true",
+            default=False,
+            help="Use the user configuration file only",
+        )
+
+        self.cmd_opts.add_option(
+            "--site",
+            dest="site_file",
+            action="store_true",
+            default=False,
+            help="Use the current environment configuration file only",
+        )
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options: Values, args: List[str]) -> int:
+        handlers = {
+            "list": self.list_values,
+            "edit": self.open_in_editor,
+            "get": self.get_name,
+            "set": self.set_name_value,
+            "unset": self.unset_name,
+            "debug": self.list_config_values,
+        }
+
+        # Determine action
+        if not args or args[0] not in handlers:
+            logger.error(
+                "Need an action (%s) to perform.",
+                ", ".join(sorted(handlers)),
+            )
+            return ERROR
+
+        action = args[0]
+
+        # Determine which configuration files are to be loaded
+        #    Depends on whether the command is modifying.
+        try:
+            load_only = self._determine_file(
+                options, need_value=(action in ["get", "set", "unset", "edit"])
+            )
+        except PipError as e:
+            logger.error(e.args[0])
+            return ERROR
+
+        # Load a new configuration
+        self.configuration = Configuration(
+            isolated=options.isolated_mode, load_only=load_only
+        )
+        self.configuration.load()
+
+        # Error handling happens here, not in the action-handlers.
+        try:
+            handlers[action](options, args[1:])
+        except PipError as e:
+            logger.error(e.args[0])
+            return ERROR
+
+        return SUCCESS
+
+    def _determine_file(self, options: Values, need_value: bool) -> Optional[Kind]:
+        file_options = [
+            key
+            for key, value in (
+                (kinds.USER, options.user_file),
+                (kinds.GLOBAL, options.global_file),
+                (kinds.SITE, options.site_file),
+            )
+            if value
+        ]
+
+        if not file_options:
+            if not need_value:
+                return None
+            # Default to user, unless there's a site file.
+            elif any(
+                os.path.exists(site_config_file)
+                for site_config_file in get_configuration_files()[kinds.SITE]
+            ):
+                return kinds.SITE
+            else:
+                return kinds.USER
+        elif len(file_options) == 1:
+            return file_options[0]
+
+        raise PipError(
+            "Need exactly one file to operate upon "
+            "(--user, --site, --global) to perform."
+        )
+
+    def list_values(self, options: Values, args: List[str]) -> None:
+        self._get_n_args(args, "list", n=0)
+
+        for key, value in sorted(self.configuration.items()):
+            write_output("%s=%r", key, value)
+
+    def get_name(self, options: Values, args: List[str]) -> None:
+        key = self._get_n_args(args, "get [name]", n=1)
+        value = self.configuration.get_value(key)
+
+        write_output("%s", value)
+
+    def set_name_value(self, options: Values, args: List[str]) -> None:
+        key, value = self._get_n_args(args, "set [name] [value]", n=2)
+        self.configuration.set_value(key, value)
+
+        self._save_configuration()
+
+    def unset_name(self, options: Values, args: List[str]) -> None:
+        key = self._get_n_args(args, "unset [name]", n=1)
+        self.configuration.unset_value(key)
+
+        self._save_configuration()
+
+    def list_config_values(self, options: Values, args: List[str]) -> None:
+        """List config key-value pairs across different config files"""
+        self._get_n_args(args, "debug", n=0)
+
+        self.print_env_var_values()
+        # Iterate over config files and print if they exist, and the
+        # key-value pairs present in them if they do
+        for variant, files in sorted(self.configuration.iter_config_files()):
+            write_output("%s:", variant)
+            for fname in files:
+                with indent_log():
+                    file_exists = os.path.exists(fname)
+                    write_output("%s, exists: %r", fname, file_exists)
+                    if file_exists:
+                        self.print_config_file_values(variant)
+
+    def print_config_file_values(self, variant: Kind) -> None:
+        """Get key-value pairs from the file of a variant"""
+        for name, value in self.configuration.get_values_in_config(variant).items():
+            with indent_log():
+                write_output("%s: %s", name, value)
+
+    def print_env_var_values(self) -> None:
+        """Get key-values pairs present as environment variables"""
+        write_output("%s:", "env_var")
+        with indent_log():
+            for key, value in sorted(self.configuration.get_environ_vars()):
+                env_var = f"PIP_{key.upper()}"
+                write_output("%s=%r", env_var, value)
+
+    def open_in_editor(self, options: Values, args: List[str]) -> None:
+        editor = self._determine_editor(options)
+
+        fname = self.configuration.get_file_to_edit()
+        if fname is None:
+            raise PipError("Could not determine appropriate file.")
+
+        try:
+            subprocess.check_call([editor, fname])
+        except subprocess.CalledProcessError as e:
+            raise PipError(
+                "Editor Subprocess exited with exit code {}".format(e.returncode)
+            )
+
+    def _get_n_args(self, args: List[str], example: str, n: int) -> Any:
+        """Helper to make sure the command got the right number of arguments"""
+        if len(args) != n:
+            msg = (
+                "Got unexpected number of arguments, expected {}. "
+                '(example: "{} config {}")'
+            ).format(n, get_prog(), example)
+            raise PipError(msg)
+
+        if n == 1:
+            return args[0]
+        else:
+            return args
+
+    def _save_configuration(self) -> None:
+        # We successfully ran a modifying command. Need to save the
+        # configuration.
+        try:
+            self.configuration.save()
+        except Exception:
+            logger.exception(
+                "Unable to save configuration. Please report this as a bug."
+            )
+            raise PipError("Internal Error.")
+
+    def _determine_editor(self, options: Values) -> str:
+        if options.editor is not None:
+            return options.editor
+        elif "VISUAL" in os.environ:
+            return os.environ["VISUAL"]
+        elif "EDITOR" in os.environ:
+            return os.environ["EDITOR"]
+        else:
+            raise PipError("Could not determine editor to use.")
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/debug.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/debug.py
new file mode 100644
index 0000000..d3f1f28
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/debug.py
@@ -0,0 +1,202 @@
+import locale
+import logging
+import os
+import sys
+from optparse import Values
+from types import ModuleType
+from typing import Any, Dict, List, Optional
+
+import pip._vendor
+from pip._vendor.certifi import where
+from pip._vendor.packaging.version import parse as parse_version
+
+from pip import __file__ as pip_location
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.cmdoptions import make_target_python
+from pip._internal.cli.status_codes import SUCCESS
+from pip._internal.configuration import Configuration
+from pip._internal.metadata import get_environment
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import get_pip_version
+
+logger = logging.getLogger(__name__)
+
+
+def show_value(name: str, value: Any) -> None:
+    logger.info("%s: %s", name, value)
+
+
+def show_sys_implementation() -> None:
+    logger.info("sys.implementation:")
+    implementation_name = sys.implementation.name
+    with indent_log():
+        show_value("name", implementation_name)
+
+
+def create_vendor_txt_map() -> Dict[str, str]:
+    vendor_txt_path = os.path.join(
+        os.path.dirname(pip_location), "_vendor", "vendor.txt"
+    )
+
+    with open(vendor_txt_path) as f:
+        # Purge non version specifying lines.
+        # Also, remove any space prefix or suffixes (including comments).
+        lines = [
+            line.strip().split(" ", 1)[0] for line in f.readlines() if "==" in line
+        ]
+
+    # Transform into "module" -> version dict.
+    return dict(line.split("==", 1) for line in lines)  # type: ignore
+
+
+def get_module_from_module_name(module_name: str) -> ModuleType:
+    # Module name can be uppercase in vendor.txt for some reason...
+    module_name = module_name.lower()
+    # PATCH: setuptools is actually only pkg_resources.
+    if module_name == "setuptools":
+        module_name = "pkg_resources"
+
+    __import__(f"pip._vendor.{module_name}", globals(), locals(), level=0)
+    return getattr(pip._vendor, module_name)
+
+
+def get_vendor_version_from_module(module_name: str) -> Optional[str]:
+    module = get_module_from_module_name(module_name)
+    version = getattr(module, "__version__", None)
+
+    if not version:
+        # Try to find version in debundled module info.
+        env = get_environment([os.path.dirname(module.__file__)])
+        dist = env.get_distribution(module_name)
+        if dist:
+            version = str(dist.version)
+
+    return version
+
+
+def show_actual_vendor_versions(vendor_txt_versions: Dict[str, str]) -> None:
+    """Log the actual version and print extra info if there is
+    a conflict or if the actual version could not be imported.
+    """
+    for module_name, expected_version in vendor_txt_versions.items():
+        extra_message = ""
+        actual_version = get_vendor_version_from_module(module_name)
+        if not actual_version:
+            extra_message = (
+                " (Unable to locate actual module version, using"
+                " vendor.txt specified version)"
+            )
+            actual_version = expected_version
+        elif parse_version(actual_version) != parse_version(expected_version):
+            extra_message = (
+                " (CONFLICT: vendor.txt suggests version should"
+                " be {})".format(expected_version)
+            )
+        logger.info("%s==%s%s", module_name, actual_version, extra_message)
+
+
+def show_vendor_versions() -> None:
+    logger.info("vendored library versions:")
+
+    vendor_txt_versions = create_vendor_txt_map()
+    with indent_log():
+        show_actual_vendor_versions(vendor_txt_versions)
+
+
+def show_tags(options: Values) -> None:
+    tag_limit = 10
+
+    target_python = make_target_python(options)
+    tags = target_python.get_tags()
+
+    # Display the target options that were explicitly provided.
+    formatted_target = target_python.format_given()
+    suffix = ""
+    if formatted_target:
+        suffix = f" (target: {formatted_target})"
+
+    msg = "Compatible tags: {}{}".format(len(tags), suffix)
+    logger.info(msg)
+
+    if options.verbose < 1 and len(tags) > tag_limit:
+        tags_limited = True
+        tags = tags[:tag_limit]
+    else:
+        tags_limited = False
+
+    with indent_log():
+        for tag in tags:
+            logger.info(str(tag))
+
+        if tags_limited:
+            msg = (
+                "...\n[First {tag_limit} tags shown. Pass --verbose to show all.]"
+            ).format(tag_limit=tag_limit)
+            logger.info(msg)
+
+
+def ca_bundle_info(config: Configuration) -> str:
+    levels = set()
+    for key, _ in config.items():
+        levels.add(key.split(".")[0])
+
+    if not levels:
+        return "Not specified"
+
+    levels_that_override_global = ["install", "wheel", "download"]
+    global_overriding_level = [
+        level for level in levels if level in levels_that_override_global
+    ]
+    if not global_overriding_level:
+        return "global"
+
+    if "global" in levels:
+        levels.remove("global")
+    return ", ".join(levels)
+
+
+class DebugCommand(Command):
+    """
+    Display debug information.
+    """
+
+    usage = """
+      %prog """
+    ignore_require_venv = True
+
+    def add_options(self) -> None:
+        cmdoptions.add_target_python_options(self.cmd_opts)
+        self.parser.insert_option_group(0, self.cmd_opts)
+        self.parser.config.load()
+
+    def run(self, options: Values, args: List[str]) -> int:
+        logger.warning(
+            "This command is only meant for debugging. "
+            "Do not use this with automation for parsing and getting these "
+            "details, since the output and options of this command may "
+            "change without notice."
+        )
+        show_value("pip version", get_pip_version())
+        show_value("sys.version", sys.version)
+        show_value("sys.executable", sys.executable)
+        show_value("sys.getdefaultencoding", sys.getdefaultencoding())
+        show_value("sys.getfilesystemencoding", sys.getfilesystemencoding())
+        show_value(
+            "locale.getpreferredencoding",
+            locale.getpreferredencoding(),
+        )
+        show_value("sys.platform", sys.platform)
+        show_sys_implementation()
+
+        show_value("'cert' config value", ca_bundle_info(self.parser.config))
+        show_value("REQUESTS_CA_BUNDLE", os.environ.get("REQUESTS_CA_BUNDLE"))
+        show_value("CURL_CA_BUNDLE", os.environ.get("CURL_CA_BUNDLE"))
+        show_value("pip._vendor.certifi.where()", where())
+        show_value("pip._vendor.DEBUNDLED", pip._vendor.DEBUNDLED)
+
+        show_vendor_versions()
+
+        show_tags(options)
+
+        return SUCCESS
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/download.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/download.py
new file mode 100644
index 0000000..7de207f
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/download.py
@@ -0,0 +1,139 @@
+import logging
+import os
+from optparse import Values
+from typing import List
+
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.cmdoptions import make_target_python
+from pip._internal.cli.req_command import RequirementCommand, with_cleanup
+from pip._internal.cli.status_codes import SUCCESS
+from pip._internal.req.req_tracker import get_requirement_tracker
+from pip._internal.utils.misc import ensure_dir, normalize_path, write_output
+from pip._internal.utils.temp_dir import TempDirectory
+
+logger = logging.getLogger(__name__)
+
+
+class DownloadCommand(RequirementCommand):
+    """
+    Download packages from:
+
+    - PyPI (and other indexes) using requirement specifiers.
+    - VCS project urls.
+    - Local project directories.
+    - Local or remote source archives.
+
+    pip also supports downloading from "requirements files", which provide
+    an easy way to specify a whole environment to be downloaded.
+    """
+
+    usage = """
+      %prog [options]  [package-index-options] ...
+      %prog [options] -r  [package-index-options] ...
+      %prog [options]  ...
+      %prog [options]  ...
+      %prog [options]  ..."""
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(cmdoptions.constraints())
+        self.cmd_opts.add_option(cmdoptions.requirements())
+        self.cmd_opts.add_option(cmdoptions.no_deps())
+        self.cmd_opts.add_option(cmdoptions.global_options())
+        self.cmd_opts.add_option(cmdoptions.no_binary())
+        self.cmd_opts.add_option(cmdoptions.only_binary())
+        self.cmd_opts.add_option(cmdoptions.prefer_binary())
+        self.cmd_opts.add_option(cmdoptions.src())
+        self.cmd_opts.add_option(cmdoptions.pre())
+        self.cmd_opts.add_option(cmdoptions.require_hashes())
+        self.cmd_opts.add_option(cmdoptions.progress_bar())
+        self.cmd_opts.add_option(cmdoptions.no_build_isolation())
+        self.cmd_opts.add_option(cmdoptions.use_pep517())
+        self.cmd_opts.add_option(cmdoptions.no_use_pep517())
+        self.cmd_opts.add_option(cmdoptions.ignore_requires_python())
+
+        self.cmd_opts.add_option(
+            "-d",
+            "--dest",
+            "--destination-dir",
+            "--destination-directory",
+            dest="download_dir",
+            metavar="dir",
+            default=os.curdir,
+            help="Download packages into .",
+        )
+
+        cmdoptions.add_target_python_options(self.cmd_opts)
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    @with_cleanup
+    def run(self, options: Values, args: List[str]) -> int:
+
+        options.ignore_installed = True
+        # editable doesn't really make sense for `pip download`, but the bowels
+        # of the RequirementSet code require that property.
+        options.editables = []
+
+        cmdoptions.check_dist_restriction(options)
+
+        options.download_dir = normalize_path(options.download_dir)
+        ensure_dir(options.download_dir)
+
+        session = self.get_default_session(options)
+
+        target_python = make_target_python(options)
+        finder = self._build_package_finder(
+            options=options,
+            session=session,
+            target_python=target_python,
+            ignore_requires_python=options.ignore_requires_python,
+        )
+
+        req_tracker = self.enter_context(get_requirement_tracker())
+
+        directory = TempDirectory(
+            delete=not options.no_clean,
+            kind="download",
+            globally_managed=True,
+        )
+
+        reqs = self.get_requirements(args, options, finder, session)
+
+        preparer = self.make_requirement_preparer(
+            temp_build_dir=directory,
+            options=options,
+            req_tracker=req_tracker,
+            session=session,
+            finder=finder,
+            download_dir=options.download_dir,
+            use_user_site=False,
+        )
+
+        resolver = self.make_resolver(
+            preparer=preparer,
+            finder=finder,
+            options=options,
+            ignore_requires_python=options.ignore_requires_python,
+            py_version_info=options.python_version,
+        )
+
+        self.trace_basic_info(finder)
+
+        requirement_set = resolver.resolve(reqs, check_supported_wheels=True)
+
+        downloaded: List[str] = []
+        for req in requirement_set.requirements.values():
+            if req.satisfied_by is None:
+                assert req.name is not None
+                preparer.save_linked_requirement(req)
+                downloaded.append(req.name)
+        if downloaded:
+            write_output("Successfully downloaded %s", " ".join(downloaded))
+
+        return SUCCESS
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/freeze.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/freeze.py
new file mode 100644
index 0000000..5fa6d39
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/freeze.py
@@ -0,0 +1,97 @@
+import sys
+from optparse import Values
+from typing import List
+
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import SUCCESS
+from pip._internal.operations.freeze import freeze
+from pip._internal.utils.compat import stdlib_pkgs
+
+DEV_PKGS = {"pip", "setuptools", "distribute", "wheel"}
+
+
+class FreezeCommand(Command):
+    """
+    Output installed packages in requirements format.
+
+    packages are listed in a case-insensitive sorted order.
+    """
+
+    usage = """
+      %prog [options]"""
+    log_streams = ("ext://sys.stderr", "ext://sys.stderr")
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(
+            "-r",
+            "--requirement",
+            dest="requirements",
+            action="append",
+            default=[],
+            metavar="file",
+            help=(
+                "Use the order in the given requirements file and its "
+                "comments when generating output. This option can be "
+                "used multiple times."
+            ),
+        )
+        self.cmd_opts.add_option(
+            "-l",
+            "--local",
+            dest="local",
+            action="store_true",
+            default=False,
+            help=(
+                "If in a virtualenv that has global access, do not output "
+                "globally-installed packages."
+            ),
+        )
+        self.cmd_opts.add_option(
+            "--user",
+            dest="user",
+            action="store_true",
+            default=False,
+            help="Only output packages installed in user-site.",
+        )
+        self.cmd_opts.add_option(cmdoptions.list_path())
+        self.cmd_opts.add_option(
+            "--all",
+            dest="freeze_all",
+            action="store_true",
+            help=(
+                "Do not skip these packages in the output:"
+                " {}".format(", ".join(DEV_PKGS))
+            ),
+        )
+        self.cmd_opts.add_option(
+            "--exclude-editable",
+            dest="exclude_editable",
+            action="store_true",
+            help="Exclude editable package from output.",
+        )
+        self.cmd_opts.add_option(cmdoptions.list_exclude())
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options: Values, args: List[str]) -> int:
+        skip = set(stdlib_pkgs)
+        if not options.freeze_all:
+            skip.update(DEV_PKGS)
+
+        if options.excludes:
+            skip.update(options.excludes)
+
+        cmdoptions.check_list_path_option(options)
+
+        for line in freeze(
+            requirement=options.requirements,
+            local_only=options.local,
+            user_only=options.user,
+            paths=options.path,
+            isolated=options.isolated_mode,
+            skip=skip,
+            exclude_editable=options.exclude_editable,
+        ):
+            sys.stdout.write(line + "\n")
+        return SUCCESS
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/hash.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/hash.py
new file mode 100644
index 0000000..042dac8
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/hash.py
@@ -0,0 +1,59 @@
+import hashlib
+import logging
+import sys
+from optparse import Values
+from typing import List
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import ERROR, SUCCESS
+from pip._internal.utils.hashes import FAVORITE_HASH, STRONG_HASHES
+from pip._internal.utils.misc import read_chunks, write_output
+
+logger = logging.getLogger(__name__)
+
+
+class HashCommand(Command):
+    """
+    Compute a hash of a local package archive.
+
+    These can be used with --hash in a requirements file to do repeatable
+    installs.
+    """
+
+    usage = "%prog [options]  ..."
+    ignore_require_venv = True
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(
+            "-a",
+            "--algorithm",
+            dest="algorithm",
+            choices=STRONG_HASHES,
+            action="store",
+            default=FAVORITE_HASH,
+            help="The hash algorithm to use: one of {}".format(
+                ", ".join(STRONG_HASHES)
+            ),
+        )
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options: Values, args: List[str]) -> int:
+        if not args:
+            self.parser.print_usage(sys.stderr)
+            return ERROR
+
+        algorithm = options.algorithm
+        for path in args:
+            write_output(
+                "%s:\n--hash=%s:%s", path, algorithm, _hash_of_file(path, algorithm)
+            )
+        return SUCCESS
+
+
+def _hash_of_file(path: str, algorithm: str) -> str:
+    """Return the hash digest of a file."""
+    with open(path, "rb") as archive:
+        hash = hashlib.new(algorithm)
+        for chunk in read_chunks(archive):
+            hash.update(chunk)
+    return hash.hexdigest()
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/help.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/help.py
new file mode 100644
index 0000000..6206631
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/help.py
@@ -0,0 +1,41 @@
+from optparse import Values
+from typing import List
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import SUCCESS
+from pip._internal.exceptions import CommandError
+
+
+class HelpCommand(Command):
+    """Show help for commands"""
+
+    usage = """
+      %prog """
+    ignore_require_venv = True
+
+    def run(self, options: Values, args: List[str]) -> int:
+        from pip._internal.commands import (
+            commands_dict,
+            create_command,
+            get_similar_commands,
+        )
+
+        try:
+            # 'pip help' with no args is handled by pip.__init__.parseopt()
+            cmd_name = args[0]  # the command we need help for
+        except IndexError:
+            return SUCCESS
+
+        if cmd_name not in commands_dict:
+            guess = get_similar_commands(cmd_name)
+
+            msg = [f'unknown command "{cmd_name}"']
+            if guess:
+                msg.append(f'maybe you meant "{guess}"')
+
+            raise CommandError(" - ".join(msg))
+
+        command = create_command(cmd_name)
+        command.parser.print_help()
+
+        return SUCCESS
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/index.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/index.py
new file mode 100644
index 0000000..b4bf0ac
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/index.py
@@ -0,0 +1,138 @@
+import logging
+from optparse import Values
+from typing import Any, Iterable, List, Optional, Union
+
+from pip._vendor.packaging.version import LegacyVersion, Version
+
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.req_command import IndexGroupCommand
+from pip._internal.cli.status_codes import ERROR, SUCCESS
+from pip._internal.commands.search import print_dist_installation_info
+from pip._internal.exceptions import CommandError, DistributionNotFound, PipError
+from pip._internal.index.collector import LinkCollector
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.models.selection_prefs import SelectionPreferences
+from pip._internal.models.target_python import TargetPython
+from pip._internal.network.session import PipSession
+from pip._internal.utils.misc import write_output
+
+logger = logging.getLogger(__name__)
+
+
+class IndexCommand(IndexGroupCommand):
+    """
+    Inspect information available from package indexes.
+    """
+
+    usage = """
+        %prog versions 
+    """
+
+    def add_options(self) -> None:
+        cmdoptions.add_target_python_options(self.cmd_opts)
+
+        self.cmd_opts.add_option(cmdoptions.ignore_requires_python())
+        self.cmd_opts.add_option(cmdoptions.pre())
+        self.cmd_opts.add_option(cmdoptions.no_binary())
+        self.cmd_opts.add_option(cmdoptions.only_binary())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options: Values, args: List[str]) -> int:
+        handlers = {
+            "versions": self.get_available_package_versions,
+        }
+
+        logger.warning(
+            "pip index is currently an experimental command. "
+            "It may be removed/changed in a future release "
+            "without prior warning."
+        )
+
+        # Determine action
+        if not args or args[0] not in handlers:
+            logger.error(
+                "Need an action (%s) to perform.",
+                ", ".join(sorted(handlers)),
+            )
+            return ERROR
+
+        action = args[0]
+
+        # Error handling happens here, not in the action-handlers.
+        try:
+            handlers[action](options, args[1:])
+        except PipError as e:
+            logger.error(e.args[0])
+            return ERROR
+
+        return SUCCESS
+
+    def _build_package_finder(
+        self,
+        options: Values,
+        session: PipSession,
+        target_python: Optional[TargetPython] = None,
+        ignore_requires_python: Optional[bool] = None,
+    ) -> PackageFinder:
+        """
+        Create a package finder appropriate to the index command.
+        """
+        link_collector = LinkCollector.create(session, options=options)
+
+        # Pass allow_yanked=False to ignore yanked versions.
+        selection_prefs = SelectionPreferences(
+            allow_yanked=False,
+            allow_all_prereleases=options.pre,
+            ignore_requires_python=ignore_requires_python,
+        )
+
+        return PackageFinder.create(
+            link_collector=link_collector,
+            selection_prefs=selection_prefs,
+            target_python=target_python,
+        )
+
+    def get_available_package_versions(self, options: Values, args: List[Any]) -> None:
+        if len(args) != 1:
+            raise CommandError("You need to specify exactly one argument")
+
+        target_python = cmdoptions.make_target_python(options)
+        query = args[0]
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(
+                options=options,
+                session=session,
+                target_python=target_python,
+                ignore_requires_python=options.ignore_requires_python,
+            )
+
+            versions: Iterable[Union[LegacyVersion, Version]] = (
+                candidate.version for candidate in finder.find_all_candidates(query)
+            )
+
+            if not options.pre:
+                # Remove prereleases
+                versions = (
+                    version for version in versions if not version.is_prerelease
+                )
+            versions = set(versions)
+
+            if not versions:
+                raise DistributionNotFound(
+                    "No matching distribution found for {}".format(query)
+                )
+
+            formatted_versions = [str(ver) for ver in sorted(versions, reverse=True)]
+            latest = formatted_versions[0]
+
+        write_output("{} ({})".format(query, latest))
+        write_output("Available versions: {}".format(", ".join(formatted_versions)))
+        print_dist_installation_info(query, latest)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/install.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/install.py
new file mode 100644
index 0000000..eedb1ff
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/install.py
@@ -0,0 +1,770 @@
+import errno
+import operator
+import os
+import shutil
+import site
+from optparse import SUPPRESS_HELP, Values
+from typing import Iterable, List, Optional
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.cache import WheelCache
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.cmdoptions import make_target_python
+from pip._internal.cli.req_command import (
+    RequirementCommand,
+    warn_if_run_as_root,
+    with_cleanup,
+)
+from pip._internal.cli.status_codes import ERROR, SUCCESS
+from pip._internal.exceptions import CommandError, InstallationError
+from pip._internal.locations import get_scheme
+from pip._internal.metadata import get_environment
+from pip._internal.models.format_control import FormatControl
+from pip._internal.operations.check import ConflictDetails, check_install_conflicts
+from pip._internal.req import install_given_reqs
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.req.req_tracker import get_requirement_tracker
+from pip._internal.utils.compat import WINDOWS
+from pip._internal.utils.distutils_args import parse_distutils_args
+from pip._internal.utils.filesystem import test_writable_dir
+from pip._internal.utils.logging import getLogger
+from pip._internal.utils.misc import (
+    ensure_dir,
+    get_pip_version,
+    protect_pip_from_modification_on_windows,
+    write_output,
+)
+from pip._internal.utils.temp_dir import TempDirectory
+from pip._internal.utils.virtualenv import (
+    running_under_virtualenv,
+    virtualenv_no_global,
+)
+from pip._internal.wheel_builder import (
+    BinaryAllowedPredicate,
+    build,
+    should_build_for_install_command,
+)
+
+logger = getLogger(__name__)
+
+
+def get_check_binary_allowed(format_control: FormatControl) -> BinaryAllowedPredicate:
+    def check_binary_allowed(req: InstallRequirement) -> bool:
+        canonical_name = canonicalize_name(req.name or "")
+        allowed_formats = format_control.get_allowed_formats(canonical_name)
+        return "binary" in allowed_formats
+
+    return check_binary_allowed
+
+
+class InstallCommand(RequirementCommand):
+    """
+    Install packages from:
+
+    - PyPI (and other indexes) using requirement specifiers.
+    - VCS project urls.
+    - Local project directories.
+    - Local or remote source archives.
+
+    pip also supports installing from "requirements files", which provide
+    an easy way to specify a whole environment to be installed.
+    """
+
+    usage = """
+      %prog [options]  [package-index-options] ...
+      %prog [options] -r  [package-index-options] ...
+      %prog [options] [-e]  ...
+      %prog [options] [-e]  ...
+      %prog [options]  ..."""
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(cmdoptions.requirements())
+        self.cmd_opts.add_option(cmdoptions.constraints())
+        self.cmd_opts.add_option(cmdoptions.no_deps())
+        self.cmd_opts.add_option(cmdoptions.pre())
+
+        self.cmd_opts.add_option(cmdoptions.editable())
+        self.cmd_opts.add_option(
+            "-t",
+            "--target",
+            dest="target_dir",
+            metavar="dir",
+            default=None,
+            help=(
+                "Install packages into . "
+                "By default this will not replace existing files/folders in "
+                ". Use --upgrade to replace existing packages in  "
+                "with new versions."
+            ),
+        )
+        cmdoptions.add_target_python_options(self.cmd_opts)
+
+        self.cmd_opts.add_option(
+            "--user",
+            dest="use_user_site",
+            action="store_true",
+            help=(
+                "Install to the Python user install directory for your "
+                "platform. Typically ~/.local/, or %APPDATA%\\Python on "
+                "Windows. (See the Python documentation for site.USER_BASE "
+                "for full details.)"
+            ),
+        )
+        self.cmd_opts.add_option(
+            "--no-user",
+            dest="use_user_site",
+            action="store_false",
+            help=SUPPRESS_HELP,
+        )
+        self.cmd_opts.add_option(
+            "--root",
+            dest="root_path",
+            metavar="dir",
+            default=None,
+            help="Install everything relative to this alternate root directory.",
+        )
+        self.cmd_opts.add_option(
+            "--prefix",
+            dest="prefix_path",
+            metavar="dir",
+            default=None,
+            help=(
+                "Installation prefix where lib, bin and other top-level "
+                "folders are placed"
+            ),
+        )
+
+        self.cmd_opts.add_option(cmdoptions.src())
+
+        self.cmd_opts.add_option(
+            "-U",
+            "--upgrade",
+            dest="upgrade",
+            action="store_true",
+            help=(
+                "Upgrade all specified packages to the newest available "
+                "version. The handling of dependencies depends on the "
+                "upgrade-strategy used."
+            ),
+        )
+
+        self.cmd_opts.add_option(
+            "--upgrade-strategy",
+            dest="upgrade_strategy",
+            default="only-if-needed",
+            choices=["only-if-needed", "eager"],
+            help=(
+                "Determines how dependency upgrading should be handled "
+                "[default: %default]. "
+                '"eager" - dependencies are upgraded regardless of '
+                "whether the currently installed version satisfies the "
+                "requirements of the upgraded package(s). "
+                '"only-if-needed" -  are upgraded only when they do not '
+                "satisfy the requirements of the upgraded package(s)."
+            ),
+        )
+
+        self.cmd_opts.add_option(
+            "--force-reinstall",
+            dest="force_reinstall",
+            action="store_true",
+            help="Reinstall all packages even if they are already up-to-date.",
+        )
+
+        self.cmd_opts.add_option(
+            "-I",
+            "--ignore-installed",
+            dest="ignore_installed",
+            action="store_true",
+            help=(
+                "Ignore the installed packages, overwriting them. "
+                "This can break your system if the existing package "
+                "is of a different version or was installed "
+                "with a different package manager!"
+            ),
+        )
+
+        self.cmd_opts.add_option(cmdoptions.ignore_requires_python())
+        self.cmd_opts.add_option(cmdoptions.no_build_isolation())
+        self.cmd_opts.add_option(cmdoptions.use_pep517())
+        self.cmd_opts.add_option(cmdoptions.no_use_pep517())
+
+        self.cmd_opts.add_option(cmdoptions.install_options())
+        self.cmd_opts.add_option(cmdoptions.global_options())
+
+        self.cmd_opts.add_option(
+            "--compile",
+            action="store_true",
+            dest="compile",
+            default=True,
+            help="Compile Python source files to bytecode",
+        )
+
+        self.cmd_opts.add_option(
+            "--no-compile",
+            action="store_false",
+            dest="compile",
+            help="Do not compile Python source files to bytecode",
+        )
+
+        self.cmd_opts.add_option(
+            "--no-warn-script-location",
+            action="store_false",
+            dest="warn_script_location",
+            default=True,
+            help="Do not warn when installing scripts outside PATH",
+        )
+        self.cmd_opts.add_option(
+            "--no-warn-conflicts",
+            action="store_false",
+            dest="warn_about_conflicts",
+            default=True,
+            help="Do not warn about broken dependencies",
+        )
+
+        self.cmd_opts.add_option(cmdoptions.no_binary())
+        self.cmd_opts.add_option(cmdoptions.only_binary())
+        self.cmd_opts.add_option(cmdoptions.prefer_binary())
+        self.cmd_opts.add_option(cmdoptions.require_hashes())
+        self.cmd_opts.add_option(cmdoptions.progress_bar())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    @with_cleanup
+    def run(self, options: Values, args: List[str]) -> int:
+        if options.use_user_site and options.target_dir is not None:
+            raise CommandError("Can not combine '--user' and '--target'")
+
+        cmdoptions.check_install_build_global(options)
+        upgrade_strategy = "to-satisfy-only"
+        if options.upgrade:
+            upgrade_strategy = options.upgrade_strategy
+
+        cmdoptions.check_dist_restriction(options, check_target=True)
+
+        install_options = options.install_options or []
+
+        logger.verbose("Using %s", get_pip_version())
+        options.use_user_site = decide_user_install(
+            options.use_user_site,
+            prefix_path=options.prefix_path,
+            target_dir=options.target_dir,
+            root_path=options.root_path,
+            isolated_mode=options.isolated_mode,
+        )
+
+        target_temp_dir: Optional[TempDirectory] = None
+        target_temp_dir_path: Optional[str] = None
+        if options.target_dir:
+            options.ignore_installed = True
+            options.target_dir = os.path.abspath(options.target_dir)
+            if (
+                # fmt: off
+                os.path.exists(options.target_dir) and
+                not os.path.isdir(options.target_dir)
+                # fmt: on
+            ):
+                raise CommandError(
+                    "Target path exists but is not a directory, will not continue."
+                )
+
+            # Create a target directory for using with the target option
+            target_temp_dir = TempDirectory(kind="target")
+            target_temp_dir_path = target_temp_dir.path
+            self.enter_context(target_temp_dir)
+
+        global_options = options.global_options or []
+
+        session = self.get_default_session(options)
+
+        target_python = make_target_python(options)
+        finder = self._build_package_finder(
+            options=options,
+            session=session,
+            target_python=target_python,
+            ignore_requires_python=options.ignore_requires_python,
+        )
+        wheel_cache = WheelCache(options.cache_dir, options.format_control)
+
+        req_tracker = self.enter_context(get_requirement_tracker())
+
+        directory = TempDirectory(
+            delete=not options.no_clean,
+            kind="install",
+            globally_managed=True,
+        )
+
+        try:
+            reqs = self.get_requirements(args, options, finder, session)
+
+            # Only when installing is it permitted to use PEP 660.
+            # In other circumstances (pip wheel, pip download) we generate
+            # regular (i.e. non editable) metadata and wheels.
+            for req in reqs:
+                req.permit_editable_wheels = True
+
+            reject_location_related_install_options(reqs, options.install_options)
+
+            preparer = self.make_requirement_preparer(
+                temp_build_dir=directory,
+                options=options,
+                req_tracker=req_tracker,
+                session=session,
+                finder=finder,
+                use_user_site=options.use_user_site,
+            )
+            resolver = self.make_resolver(
+                preparer=preparer,
+                finder=finder,
+                options=options,
+                wheel_cache=wheel_cache,
+                use_user_site=options.use_user_site,
+                ignore_installed=options.ignore_installed,
+                ignore_requires_python=options.ignore_requires_python,
+                force_reinstall=options.force_reinstall,
+                upgrade_strategy=upgrade_strategy,
+                use_pep517=options.use_pep517,
+            )
+
+            self.trace_basic_info(finder)
+
+            requirement_set = resolver.resolve(
+                reqs, check_supported_wheels=not options.target_dir
+            )
+
+            try:
+                pip_req = requirement_set.get_requirement("pip")
+            except KeyError:
+                modifying_pip = False
+            else:
+                # If we're not replacing an already installed pip,
+                # we're not modifying it.
+                modifying_pip = pip_req.satisfied_by is None
+            protect_pip_from_modification_on_windows(modifying_pip=modifying_pip)
+
+            check_binary_allowed = get_check_binary_allowed(finder.format_control)
+
+            reqs_to_build = [
+                r
+                for r in requirement_set.requirements.values()
+                if should_build_for_install_command(r, check_binary_allowed)
+            ]
+
+            _, build_failures = build(
+                reqs_to_build,
+                wheel_cache=wheel_cache,
+                verify=True,
+                build_options=[],
+                global_options=[],
+            )
+
+            # If we're using PEP 517, we cannot do a legacy setup.py install
+            # so we fail here.
+            pep517_build_failure_names: List[str] = [
+                r.name for r in build_failures if r.use_pep517  # type: ignore
+            ]
+            if pep517_build_failure_names:
+                raise InstallationError(
+                    "Could not build wheels for {}, which is required to "
+                    "install pyproject.toml-based projects".format(
+                        ", ".join(pep517_build_failure_names)
+                    )
+                )
+
+            # For now, we just warn about failures building legacy
+            # requirements, as we'll fall through to a setup.py install for
+            # those.
+            for r in build_failures:
+                if not r.use_pep517:
+                    r.legacy_install_reason = 8368
+
+            to_install = resolver.get_installation_order(requirement_set)
+
+            # Check for conflicts in the package set we're installing.
+            conflicts: Optional[ConflictDetails] = None
+            should_warn_about_conflicts = (
+                not options.ignore_dependencies and options.warn_about_conflicts
+            )
+            if should_warn_about_conflicts:
+                conflicts = self._determine_conflicts(to_install)
+
+            # Don't warn about script install locations if
+            # --target or --prefix has been specified
+            warn_script_location = options.warn_script_location
+            if options.target_dir or options.prefix_path:
+                warn_script_location = False
+
+            installed = install_given_reqs(
+                to_install,
+                install_options,
+                global_options,
+                root=options.root_path,
+                home=target_temp_dir_path,
+                prefix=options.prefix_path,
+                warn_script_location=warn_script_location,
+                use_user_site=options.use_user_site,
+                pycompile=options.compile,
+            )
+
+            lib_locations = get_lib_location_guesses(
+                user=options.use_user_site,
+                home=target_temp_dir_path,
+                root=options.root_path,
+                prefix=options.prefix_path,
+                isolated=options.isolated_mode,
+            )
+            env = get_environment(lib_locations)
+
+            installed.sort(key=operator.attrgetter("name"))
+            items = []
+            for result in installed:
+                item = result.name
+                try:
+                    installed_dist = env.get_distribution(item)
+                    if installed_dist is not None:
+                        item = f"{item}-{installed_dist.version}"
+                except Exception:
+                    pass
+                items.append(item)
+
+            if conflicts is not None:
+                self._warn_about_conflicts(
+                    conflicts,
+                    resolver_variant=self.determine_resolver_variant(options),
+                )
+
+            installed_desc = " ".join(items)
+            if installed_desc:
+                write_output(
+                    "Successfully installed %s",
+                    installed_desc,
+                )
+        except OSError as error:
+            show_traceback = self.verbosity >= 1
+
+            message = create_os_error_message(
+                error,
+                show_traceback,
+                options.use_user_site,
+            )
+            logger.error(message, exc_info=show_traceback)  # noqa
+
+            return ERROR
+
+        if options.target_dir:
+            assert target_temp_dir
+            self._handle_target_dir(
+                options.target_dir, target_temp_dir, options.upgrade
+            )
+
+        warn_if_run_as_root()
+        return SUCCESS
+
+    def _handle_target_dir(
+        self, target_dir: str, target_temp_dir: TempDirectory, upgrade: bool
+    ) -> None:
+        ensure_dir(target_dir)
+
+        # Checking both purelib and platlib directories for installed
+        # packages to be moved to target directory
+        lib_dir_list = []
+
+        # Checking both purelib and platlib directories for installed
+        # packages to be moved to target directory
+        scheme = get_scheme("", home=target_temp_dir.path)
+        purelib_dir = scheme.purelib
+        platlib_dir = scheme.platlib
+        data_dir = scheme.data
+
+        if os.path.exists(purelib_dir):
+            lib_dir_list.append(purelib_dir)
+        if os.path.exists(platlib_dir) and platlib_dir != purelib_dir:
+            lib_dir_list.append(platlib_dir)
+        if os.path.exists(data_dir):
+            lib_dir_list.append(data_dir)
+
+        for lib_dir in lib_dir_list:
+            for item in os.listdir(lib_dir):
+                if lib_dir == data_dir:
+                    ddir = os.path.join(data_dir, item)
+                    if any(s.startswith(ddir) for s in lib_dir_list[:-1]):
+                        continue
+                target_item_dir = os.path.join(target_dir, item)
+                if os.path.exists(target_item_dir):
+                    if not upgrade:
+                        logger.warning(
+                            "Target directory %s already exists. Specify "
+                            "--upgrade to force replacement.",
+                            target_item_dir,
+                        )
+                        continue
+                    if os.path.islink(target_item_dir):
+                        logger.warning(
+                            "Target directory %s already exists and is "
+                            "a link. pip will not automatically replace "
+                            "links, please remove if replacement is "
+                            "desired.",
+                            target_item_dir,
+                        )
+                        continue
+                    if os.path.isdir(target_item_dir):
+                        shutil.rmtree(target_item_dir)
+                    else:
+                        os.remove(target_item_dir)
+
+                shutil.move(os.path.join(lib_dir, item), target_item_dir)
+
+    def _determine_conflicts(
+        self, to_install: List[InstallRequirement]
+    ) -> Optional[ConflictDetails]:
+        try:
+            return check_install_conflicts(to_install)
+        except Exception:
+            logger.exception(
+                "Error while checking for conflicts. Please file an issue on "
+                "pip's issue tracker: https://github.com/pypa/pip/issues/new"
+            )
+            return None
+
+    def _warn_about_conflicts(
+        self, conflict_details: ConflictDetails, resolver_variant: str
+    ) -> None:
+        package_set, (missing, conflicting) = conflict_details
+        if not missing and not conflicting:
+            return
+
+        parts: List[str] = []
+        if resolver_variant == "legacy":
+            parts.append(
+                "pip's legacy dependency resolver does not consider dependency "
+                "conflicts when selecting packages. This behaviour is the "
+                "source of the following dependency conflicts."
+            )
+        else:
+            assert resolver_variant == "2020-resolver"
+            parts.append(
+                "pip's dependency resolver does not currently take into account "
+                "all the packages that are installed. This behaviour is the "
+                "source of the following dependency conflicts."
+            )
+
+        # NOTE: There is some duplication here, with commands/check.py
+        for project_name in missing:
+            version = package_set[project_name][0]
+            for dependency in missing[project_name]:
+                message = (
+                    "{name} {version} requires {requirement}, "
+                    "which is not installed."
+                ).format(
+                    name=project_name,
+                    version=version,
+                    requirement=dependency[1],
+                )
+                parts.append(message)
+
+        for project_name in conflicting:
+            version = package_set[project_name][0]
+            for dep_name, dep_version, req in conflicting[project_name]:
+                message = (
+                    "{name} {version} requires {requirement}, but {you} have "
+                    "{dep_name} {dep_version} which is incompatible."
+                ).format(
+                    name=project_name,
+                    version=version,
+                    requirement=req,
+                    dep_name=dep_name,
+                    dep_version=dep_version,
+                    you=("you" if resolver_variant == "2020-resolver" else "you'll"),
+                )
+                parts.append(message)
+
+        logger.critical("\n".join(parts))
+
+
+def get_lib_location_guesses(
+    user: bool = False,
+    home: Optional[str] = None,
+    root: Optional[str] = None,
+    isolated: bool = False,
+    prefix: Optional[str] = None,
+) -> List[str]:
+    scheme = get_scheme(
+        "",
+        user=user,
+        home=home,
+        root=root,
+        isolated=isolated,
+        prefix=prefix,
+    )
+    return [scheme.purelib, scheme.platlib]
+
+
+def site_packages_writable(root: Optional[str], isolated: bool) -> bool:
+    return all(
+        test_writable_dir(d)
+        for d in set(get_lib_location_guesses(root=root, isolated=isolated))
+    )
+
+
+def decide_user_install(
+    use_user_site: Optional[bool],
+    prefix_path: Optional[str] = None,
+    target_dir: Optional[str] = None,
+    root_path: Optional[str] = None,
+    isolated_mode: bool = False,
+) -> bool:
+    """Determine whether to do a user install based on the input options.
+
+    If use_user_site is False, no additional checks are done.
+    If use_user_site is True, it is checked for compatibility with other
+    options.
+    If use_user_site is None, the default behaviour depends on the environment,
+    which is provided by the other arguments.
+    """
+    # In some cases (config from tox), use_user_site can be set to an integer
+    # rather than a bool, which 'use_user_site is False' wouldn't catch.
+    if (use_user_site is not None) and (not use_user_site):
+        logger.debug("Non-user install by explicit request")
+        return False
+
+    if use_user_site:
+        if prefix_path:
+            raise CommandError(
+                "Can not combine '--user' and '--prefix' as they imply "
+                "different installation locations"
+            )
+        if virtualenv_no_global():
+            raise InstallationError(
+                "Can not perform a '--user' install. User site-packages "
+                "are not visible in this virtualenv."
+            )
+        logger.debug("User install by explicit request")
+        return True
+
+    # If we are here, user installs have not been explicitly requested/avoided
+    assert use_user_site is None
+
+    # user install incompatible with --prefix/--target
+    if prefix_path or target_dir:
+        logger.debug("Non-user install due to --prefix or --target option")
+        return False
+
+    # If user installs are not enabled, choose a non-user install
+    if not site.ENABLE_USER_SITE:
+        logger.debug("Non-user install because user site-packages disabled")
+        return False
+
+    # If we have permission for a non-user install, do that,
+    # otherwise do a user install.
+    if site_packages_writable(root=root_path, isolated=isolated_mode):
+        logger.debug("Non-user install because site-packages writeable")
+        return False
+
+    logger.info(
+        "Defaulting to user installation because normal site-packages "
+        "is not writeable"
+    )
+    return True
+
+
+def reject_location_related_install_options(
+    requirements: List[InstallRequirement], options: Optional[List[str]]
+) -> None:
+    """If any location-changing --install-option arguments were passed for
+    requirements or on the command-line, then show a deprecation warning.
+    """
+
+    def format_options(option_names: Iterable[str]) -> List[str]:
+        return ["--{}".format(name.replace("_", "-")) for name in option_names]
+
+    offenders = []
+
+    for requirement in requirements:
+        install_options = requirement.install_options
+        location_options = parse_distutils_args(install_options)
+        if location_options:
+            offenders.append(
+                "{!r} from {}".format(
+                    format_options(location_options.keys()), requirement
+                )
+            )
+
+    if options:
+        location_options = parse_distutils_args(options)
+        if location_options:
+            offenders.append(
+                "{!r} from command line".format(format_options(location_options.keys()))
+            )
+
+    if not offenders:
+        return
+
+    raise CommandError(
+        "Location-changing options found in --install-option: {}."
+        " This is unsupported, use pip-level options like --user,"
+        " --prefix, --root, and --target instead.".format("; ".join(offenders))
+    )
+
+
+def create_os_error_message(
+    error: OSError, show_traceback: bool, using_user_site: bool
+) -> str:
+    """Format an error message for an OSError
+
+    It may occur anytime during the execution of the install command.
+    """
+    parts = []
+
+    # Mention the error if we are not going to show a traceback
+    parts.append("Could not install packages due to an OSError")
+    if not show_traceback:
+        parts.append(": ")
+        parts.append(str(error))
+    else:
+        parts.append(".")
+
+    # Spilt the error indication from a helper message (if any)
+    parts[-1] += "\n"
+
+    # Suggest useful actions to the user:
+    #  (1) using user site-packages or (2) verifying the permissions
+    if error.errno == errno.EACCES:
+        user_option_part = "Consider using the `--user` option"
+        permissions_part = "Check the permissions"
+
+        if not running_under_virtualenv() and not using_user_site:
+            parts.extend(
+                [
+                    user_option_part,
+                    " or ",
+                    permissions_part.lower(),
+                ]
+            )
+        else:
+            parts.append(permissions_part)
+        parts.append(".\n")
+
+    # Suggest the user to enable Long Paths if path length is
+    # more than 260
+    if (
+        WINDOWS
+        and error.errno == errno.ENOENT
+        and error.filename
+        and len(error.filename) > 260
+    ):
+        parts.append(
+            "HINT: This error might have occurred since "
+            "this system does not have Windows Long Path "
+            "support enabled. You can find information on "
+            "how to enable this at "
+            "https://pip.pypa.io/warnings/enable-long-paths\n"
+        )
+
+    return "".join(parts).strip() + "\n"
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/list.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/list.py
new file mode 100644
index 0000000..75d8dd4
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/list.py
@@ -0,0 +1,361 @@
+import json
+import logging
+from optparse import Values
+from typing import TYPE_CHECKING, Iterator, List, Optional, Sequence, Tuple, cast
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.req_command import IndexGroupCommand
+from pip._internal.cli.status_codes import SUCCESS
+from pip._internal.exceptions import CommandError
+from pip._internal.index.collector import LinkCollector
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.metadata import BaseDistribution, get_environment
+from pip._internal.models.selection_prefs import SelectionPreferences
+from pip._internal.network.session import PipSession
+from pip._internal.utils.compat import stdlib_pkgs
+from pip._internal.utils.misc import tabulate, write_output
+from pip._internal.utils.parallel import map_multithread
+
+if TYPE_CHECKING:
+    from pip._internal.metadata.base import DistributionVersion
+
+    class _DistWithLatestInfo(BaseDistribution):
+        """Give the distribution object a couple of extra fields.
+
+        These will be populated during ``get_outdated()``. This is dirty but
+        makes the rest of the code much cleaner.
+        """
+
+        latest_version: DistributionVersion
+        latest_filetype: str
+
+    _ProcessedDists = Sequence[_DistWithLatestInfo]
+
+
+logger = logging.getLogger(__name__)
+
+
+class ListCommand(IndexGroupCommand):
+    """
+    List installed packages, including editables.
+
+    Packages are listed in a case-insensitive sorted order.
+    """
+
+    ignore_require_venv = True
+    usage = """
+      %prog [options]"""
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(
+            "-o",
+            "--outdated",
+            action="store_true",
+            default=False,
+            help="List outdated packages",
+        )
+        self.cmd_opts.add_option(
+            "-u",
+            "--uptodate",
+            action="store_true",
+            default=False,
+            help="List uptodate packages",
+        )
+        self.cmd_opts.add_option(
+            "-e",
+            "--editable",
+            action="store_true",
+            default=False,
+            help="List editable projects.",
+        )
+        self.cmd_opts.add_option(
+            "-l",
+            "--local",
+            action="store_true",
+            default=False,
+            help=(
+                "If in a virtualenv that has global access, do not list "
+                "globally-installed packages."
+            ),
+        )
+        self.cmd_opts.add_option(
+            "--user",
+            dest="user",
+            action="store_true",
+            default=False,
+            help="Only output packages installed in user-site.",
+        )
+        self.cmd_opts.add_option(cmdoptions.list_path())
+        self.cmd_opts.add_option(
+            "--pre",
+            action="store_true",
+            default=False,
+            help=(
+                "Include pre-release and development versions. By default, "
+                "pip only finds stable versions."
+            ),
+        )
+
+        self.cmd_opts.add_option(
+            "--format",
+            action="store",
+            dest="list_format",
+            default="columns",
+            choices=("columns", "freeze", "json"),
+            help="Select the output format among: columns (default), freeze, or json",
+        )
+
+        self.cmd_opts.add_option(
+            "--not-required",
+            action="store_true",
+            dest="not_required",
+            help="List packages that are not dependencies of installed packages.",
+        )
+
+        self.cmd_opts.add_option(
+            "--exclude-editable",
+            action="store_false",
+            dest="include_editable",
+            help="Exclude editable package from output.",
+        )
+        self.cmd_opts.add_option(
+            "--include-editable",
+            action="store_true",
+            dest="include_editable",
+            help="Include editable package from output.",
+            default=True,
+        )
+        self.cmd_opts.add_option(cmdoptions.list_exclude())
+        index_opts = cmdoptions.make_option_group(cmdoptions.index_group, self.parser)
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def _build_package_finder(
+        self, options: Values, session: PipSession
+    ) -> PackageFinder:
+        """
+        Create a package finder appropriate to this list command.
+        """
+        link_collector = LinkCollector.create(session, options=options)
+
+        # Pass allow_yanked=False to ignore yanked versions.
+        selection_prefs = SelectionPreferences(
+            allow_yanked=False,
+            allow_all_prereleases=options.pre,
+        )
+
+        return PackageFinder.create(
+            link_collector=link_collector,
+            selection_prefs=selection_prefs,
+        )
+
+    def run(self, options: Values, args: List[str]) -> int:
+        if options.outdated and options.uptodate:
+            raise CommandError("Options --outdated and --uptodate cannot be combined.")
+
+        cmdoptions.check_list_path_option(options)
+
+        skip = set(stdlib_pkgs)
+        if options.excludes:
+            skip.update(canonicalize_name(n) for n in options.excludes)
+
+        packages: "_ProcessedDists" = [
+            cast("_DistWithLatestInfo", d)
+            for d in get_environment(options.path).iter_installed_distributions(
+                local_only=options.local,
+                user_only=options.user,
+                editables_only=options.editable,
+                include_editables=options.include_editable,
+                skip=skip,
+            )
+        ]
+
+        # get_not_required must be called firstly in order to find and
+        # filter out all dependencies correctly. Otherwise a package
+        # can't be identified as requirement because some parent packages
+        # could be filtered out before.
+        if options.not_required:
+            packages = self.get_not_required(packages, options)
+
+        if options.outdated:
+            packages = self.get_outdated(packages, options)
+        elif options.uptodate:
+            packages = self.get_uptodate(packages, options)
+
+        self.output_package_listing(packages, options)
+        return SUCCESS
+
+    def get_outdated(
+        self, packages: "_ProcessedDists", options: Values
+    ) -> "_ProcessedDists":
+        return [
+            dist
+            for dist in self.iter_packages_latest_infos(packages, options)
+            if dist.latest_version > dist.version
+        ]
+
+    def get_uptodate(
+        self, packages: "_ProcessedDists", options: Values
+    ) -> "_ProcessedDists":
+        return [
+            dist
+            for dist in self.iter_packages_latest_infos(packages, options)
+            if dist.latest_version == dist.version
+        ]
+
+    def get_not_required(
+        self, packages: "_ProcessedDists", options: Values
+    ) -> "_ProcessedDists":
+        dep_keys = {
+            canonicalize_name(dep.name)
+            for dist in packages
+            for dep in (dist.iter_dependencies() or ())
+        }
+
+        # Create a set to remove duplicate packages, and cast it to a list
+        # to keep the return type consistent with get_outdated and
+        # get_uptodate
+        return list({pkg for pkg in packages if pkg.canonical_name not in dep_keys})
+
+    def iter_packages_latest_infos(
+        self, packages: "_ProcessedDists", options: Values
+    ) -> Iterator["_DistWithLatestInfo"]:
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(options, session)
+
+            def latest_info(
+                dist: "_DistWithLatestInfo",
+            ) -> Optional["_DistWithLatestInfo"]:
+                all_candidates = finder.find_all_candidates(dist.canonical_name)
+                if not options.pre:
+                    # Remove prereleases
+                    all_candidates = [
+                        candidate
+                        for candidate in all_candidates
+                        if not candidate.version.is_prerelease
+                    ]
+
+                evaluator = finder.make_candidate_evaluator(
+                    project_name=dist.canonical_name,
+                )
+                best_candidate = evaluator.sort_best_candidate(all_candidates)
+                if best_candidate is None:
+                    return None
+
+                remote_version = best_candidate.version
+                if best_candidate.link.is_wheel:
+                    typ = "wheel"
+                else:
+                    typ = "sdist"
+                dist.latest_version = remote_version
+                dist.latest_filetype = typ
+                return dist
+
+            for dist in map_multithread(latest_info, packages):
+                if dist is not None:
+                    yield dist
+
+    def output_package_listing(
+        self, packages: "_ProcessedDists", options: Values
+    ) -> None:
+        packages = sorted(
+            packages,
+            key=lambda dist: dist.canonical_name,
+        )
+        if options.list_format == "columns" and packages:
+            data, header = format_for_columns(packages, options)
+            self.output_package_listing_columns(data, header)
+        elif options.list_format == "freeze":
+            for dist in packages:
+                if options.verbose >= 1:
+                    write_output(
+                        "%s==%s (%s)", dist.raw_name, dist.version, dist.location
+                    )
+                else:
+                    write_output("%s==%s", dist.raw_name, dist.version)
+        elif options.list_format == "json":
+            write_output(format_for_json(packages, options))
+
+    def output_package_listing_columns(
+        self, data: List[List[str]], header: List[str]
+    ) -> None:
+        # insert the header first: we need to know the size of column names
+        if len(data) > 0:
+            data.insert(0, header)
+
+        pkg_strings, sizes = tabulate(data)
+
+        # Create and add a separator.
+        if len(data) > 0:
+            pkg_strings.insert(1, " ".join(map(lambda x: "-" * x, sizes)))
+
+        for val in pkg_strings:
+            write_output(val)
+
+
+def format_for_columns(
+    pkgs: "_ProcessedDists", options: Values
+) -> Tuple[List[List[str]], List[str]]:
+    """
+    Convert the package data into something usable
+    by output_package_listing_columns.
+    """
+    header = ["Package", "Version"]
+
+    running_outdated = options.outdated
+    if running_outdated:
+        header.extend(["Latest", "Type"])
+
+    has_editables = any(x.editable for x in pkgs)
+    if has_editables:
+        header.append("Editable project location")
+
+    if options.verbose >= 1:
+        header.append("Location")
+    if options.verbose >= 1:
+        header.append("Installer")
+
+    data = []
+    for proj in pkgs:
+        # if we're working on the 'outdated' list, separate out the
+        # latest_version and type
+        row = [proj.raw_name, str(proj.version)]
+
+        if running_outdated:
+            row.append(str(proj.latest_version))
+            row.append(proj.latest_filetype)
+
+        if has_editables:
+            row.append(proj.editable_project_location or "")
+
+        if options.verbose >= 1:
+            row.append(proj.location or "")
+        if options.verbose >= 1:
+            row.append(proj.installer)
+
+        data.append(row)
+
+    return data, header
+
+
+def format_for_json(packages: "_ProcessedDists", options: Values) -> str:
+    data = []
+    for dist in packages:
+        info = {
+            "name": dist.raw_name,
+            "version": str(dist.version),
+        }
+        if options.verbose >= 1:
+            info["location"] = dist.location or ""
+            info["installer"] = dist.installer
+        if options.outdated:
+            info["latest_version"] = str(dist.latest_version)
+            info["latest_filetype"] = dist.latest_filetype
+        editable_project_location = dist.editable_project_location
+        if editable_project_location:
+            info["editable_project_location"] = editable_project_location
+        data.append(info)
+    return json.dumps(data)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/search.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/search.py
new file mode 100644
index 0000000..03ed925
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/search.py
@@ -0,0 +1,174 @@
+import logging
+import shutil
+import sys
+import textwrap
+import xmlrpc.client
+from collections import OrderedDict
+from optparse import Values
+from typing import TYPE_CHECKING, Dict, List, Optional
+
+from pip._vendor.packaging.version import parse as parse_version
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.req_command import SessionCommandMixin
+from pip._internal.cli.status_codes import NO_MATCHES_FOUND, SUCCESS
+from pip._internal.exceptions import CommandError
+from pip._internal.metadata import get_default_environment
+from pip._internal.models.index import PyPI
+from pip._internal.network.xmlrpc import PipXmlrpcTransport
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import write_output
+
+if TYPE_CHECKING:
+    from typing import TypedDict
+
+    class TransformedHit(TypedDict):
+        name: str
+        summary: str
+        versions: List[str]
+
+
+logger = logging.getLogger(__name__)
+
+
+class SearchCommand(Command, SessionCommandMixin):
+    """Search for PyPI packages whose name or summary contains ."""
+
+    usage = """
+      %prog [options] """
+    ignore_require_venv = True
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(
+            "-i",
+            "--index",
+            dest="index",
+            metavar="URL",
+            default=PyPI.pypi_url,
+            help="Base URL of Python Package Index (default %default)",
+        )
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options: Values, args: List[str]) -> int:
+        if not args:
+            raise CommandError("Missing required argument (search query).")
+        query = args
+        pypi_hits = self.search(query, options)
+        hits = transform_hits(pypi_hits)
+
+        terminal_width = None
+        if sys.stdout.isatty():
+            terminal_width = shutil.get_terminal_size()[0]
+
+        print_results(hits, terminal_width=terminal_width)
+        if pypi_hits:
+            return SUCCESS
+        return NO_MATCHES_FOUND
+
+    def search(self, query: List[str], options: Values) -> List[Dict[str, str]]:
+        index_url = options.index
+
+        session = self.get_default_session(options)
+
+        transport = PipXmlrpcTransport(index_url, session)
+        pypi = xmlrpc.client.ServerProxy(index_url, transport)
+        try:
+            hits = pypi.search({"name": query, "summary": query}, "or")
+        except xmlrpc.client.Fault as fault:
+            message = "XMLRPC request failed [code: {code}]\n{string}".format(
+                code=fault.faultCode,
+                string=fault.faultString,
+            )
+            raise CommandError(message)
+        assert isinstance(hits, list)
+        return hits
+
+
+def transform_hits(hits: List[Dict[str, str]]) -> List["TransformedHit"]:
+    """
+    The list from pypi is really a list of versions. We want a list of
+    packages with the list of versions stored inline. This converts the
+    list from pypi into one we can use.
+    """
+    packages: Dict[str, "TransformedHit"] = OrderedDict()
+    for hit in hits:
+        name = hit["name"]
+        summary = hit["summary"]
+        version = hit["version"]
+
+        if name not in packages.keys():
+            packages[name] = {
+                "name": name,
+                "summary": summary,
+                "versions": [version],
+            }
+        else:
+            packages[name]["versions"].append(version)
+
+            # if this is the highest version, replace summary and score
+            if version == highest_version(packages[name]["versions"]):
+                packages[name]["summary"] = summary
+
+    return list(packages.values())
+
+
+def print_dist_installation_info(name: str, latest: str) -> None:
+    env = get_default_environment()
+    dist = env.get_distribution(name)
+    if dist is not None:
+        with indent_log():
+            if dist.version == latest:
+                write_output("INSTALLED: %s (latest)", dist.version)
+            else:
+                write_output("INSTALLED: %s", dist.version)
+                if parse_version(latest).pre:
+                    write_output(
+                        "LATEST:    %s (pre-release; install"
+                        " with `pip install --pre`)",
+                        latest,
+                    )
+                else:
+                    write_output("LATEST:    %s", latest)
+
+
+def print_results(
+    hits: List["TransformedHit"],
+    name_column_width: Optional[int] = None,
+    terminal_width: Optional[int] = None,
+) -> None:
+    if not hits:
+        return
+    if name_column_width is None:
+        name_column_width = (
+            max(
+                [
+                    len(hit["name"]) + len(highest_version(hit.get("versions", ["-"])))
+                    for hit in hits
+                ]
+            )
+            + 4
+        )
+
+    for hit in hits:
+        name = hit["name"]
+        summary = hit["summary"] or ""
+        latest = highest_version(hit.get("versions", ["-"]))
+        if terminal_width is not None:
+            target_width = terminal_width - name_column_width - 5
+            if target_width > 10:
+                # wrap and indent summary to fit terminal
+                summary_lines = textwrap.wrap(summary, target_width)
+                summary = ("\n" + " " * (name_column_width + 3)).join(summary_lines)
+
+        name_latest = f"{name} ({latest})"
+        line = f"{name_latest:{name_column_width}} - {summary}"
+        try:
+            write_output(line)
+            print_dist_installation_info(name, latest)
+        except UnicodeEncodeError:
+            pass
+
+
+def highest_version(versions: List[str]) -> str:
+    return max(versions, key=parse_version)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/show.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/show.py
new file mode 100644
index 0000000..872292a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/show.py
@@ -0,0 +1,235 @@
+import csv
+import logging
+import pathlib
+from optparse import Values
+from typing import Iterator, List, NamedTuple, Optional, Tuple
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import ERROR, SUCCESS
+from pip._internal.metadata import BaseDistribution, get_default_environment
+from pip._internal.utils.misc import write_output
+
+logger = logging.getLogger(__name__)
+
+
+class ShowCommand(Command):
+    """
+    Show information about one or more installed packages.
+
+    The output is in RFC-compliant mail header format.
+    """
+
+    usage = """
+      %prog [options]  ..."""
+    ignore_require_venv = True
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(
+            "-f",
+            "--files",
+            dest="files",
+            action="store_true",
+            default=False,
+            help="Show the full list of installed files for each package.",
+        )
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options: Values, args: List[str]) -> int:
+        if not args:
+            logger.warning("ERROR: Please provide a package name or names.")
+            return ERROR
+        query = args
+
+        results = search_packages_info(query)
+        if not print_results(
+            results, list_files=options.files, verbose=options.verbose
+        ):
+            return ERROR
+        return SUCCESS
+
+
+class _PackageInfo(NamedTuple):
+    name: str
+    version: str
+    location: str
+    requires: List[str]
+    required_by: List[str]
+    installer: str
+    metadata_version: str
+    classifiers: List[str]
+    summary: str
+    homepage: str
+    author: str
+    author_email: str
+    license: str
+    entry_points: List[str]
+    files: Optional[List[str]]
+
+
+def _convert_legacy_entry(entry: Tuple[str, ...], info: Tuple[str, ...]) -> str:
+    """Convert a legacy installed-files.txt path into modern RECORD path.
+
+    The legacy format stores paths relative to the info directory, while the
+    modern format stores paths relative to the package root, e.g. the
+    site-packages directory.
+
+    :param entry: Path parts of the installed-files.txt entry.
+    :param info: Path parts of the egg-info directory relative to package root.
+    :returns: The converted entry.
+
+    For best compatibility with symlinks, this does not use ``abspath()`` or
+    ``Path.resolve()``, but tries to work with path parts:
+
+    1. While ``entry`` starts with ``..``, remove the equal amounts of parts
+       from ``info``; if ``info`` is empty, start appending ``..`` instead.
+    2. Join the two directly.
+    """
+    while entry and entry[0] == "..":
+        if not info or info[-1] == "..":
+            info += ("..",)
+        else:
+            info = info[:-1]
+        entry = entry[1:]
+    return str(pathlib.Path(*info, *entry))
+
+
+def search_packages_info(query: List[str]) -> Iterator[_PackageInfo]:
+    """
+    Gather details from installed distributions. Print distribution name,
+    version, location, and installed files. Installed files requires a
+    pip generated 'installed-files.txt' in the distributions '.egg-info'
+    directory.
+    """
+    env = get_default_environment()
+
+    installed = {dist.canonical_name: dist for dist in env.iter_distributions()}
+    query_names = [canonicalize_name(name) for name in query]
+    missing = sorted(
+        [name for name, pkg in zip(query, query_names) if pkg not in installed]
+    )
+    if missing:
+        logger.warning("Package(s) not found: %s", ", ".join(missing))
+
+    def _get_requiring_packages(current_dist: BaseDistribution) -> Iterator[str]:
+        return (
+            dist.metadata["Name"] or "UNKNOWN"
+            for dist in installed.values()
+            if current_dist.canonical_name
+            in {canonicalize_name(d.name) for d in dist.iter_dependencies()}
+        )
+
+    def _files_from_record(dist: BaseDistribution) -> Optional[Iterator[str]]:
+        try:
+            text = dist.read_text("RECORD")
+        except FileNotFoundError:
+            return None
+        # This extra Path-str cast normalizes entries.
+        return (str(pathlib.Path(row[0])) for row in csv.reader(text.splitlines()))
+
+    def _files_from_legacy(dist: BaseDistribution) -> Optional[Iterator[str]]:
+        try:
+            text = dist.read_text("installed-files.txt")
+        except FileNotFoundError:
+            return None
+        paths = (p for p in text.splitlines(keepends=False) if p)
+        root = dist.location
+        info = dist.info_directory
+        if root is None or info is None:
+            return paths
+        try:
+            info_rel = pathlib.Path(info).relative_to(root)
+        except ValueError:  # info is not relative to root.
+            return paths
+        if not info_rel.parts:  # info *is* root.
+            return paths
+        return (
+            _convert_legacy_entry(pathlib.Path(p).parts, info_rel.parts) for p in paths
+        )
+
+    for query_name in query_names:
+        try:
+            dist = installed[query_name]
+        except KeyError:
+            continue
+
+        requires = sorted((req.name for req in dist.iter_dependencies()), key=str.lower)
+        required_by = sorted(_get_requiring_packages(dist), key=str.lower)
+
+        try:
+            entry_points_text = dist.read_text("entry_points.txt")
+            entry_points = entry_points_text.splitlines(keepends=False)
+        except FileNotFoundError:
+            entry_points = []
+
+        files_iter = _files_from_record(dist) or _files_from_legacy(dist)
+        if files_iter is None:
+            files: Optional[List[str]] = None
+        else:
+            files = sorted(files_iter)
+
+        metadata = dist.metadata
+
+        yield _PackageInfo(
+            name=dist.raw_name,
+            version=str(dist.version),
+            location=dist.location or "",
+            requires=requires,
+            required_by=required_by,
+            installer=dist.installer,
+            metadata_version=dist.metadata_version or "",
+            classifiers=metadata.get_all("Classifier", []),
+            summary=metadata.get("Summary", ""),
+            homepage=metadata.get("Home-page", ""),
+            author=metadata.get("Author", ""),
+            author_email=metadata.get("Author-email", ""),
+            license=metadata.get("License", ""),
+            entry_points=entry_points,
+            files=files,
+        )
+
+
+def print_results(
+    distributions: Iterator[_PackageInfo],
+    list_files: bool,
+    verbose: bool,
+) -> bool:
+    """
+    Print the information from installed distributions found.
+    """
+    results_printed = False
+    for i, dist in enumerate(distributions):
+        results_printed = True
+        if i > 0:
+            write_output("---")
+
+        write_output("Name: %s", dist.name)
+        write_output("Version: %s", dist.version)
+        write_output("Summary: %s", dist.summary)
+        write_output("Home-page: %s", dist.homepage)
+        write_output("Author: %s", dist.author)
+        write_output("Author-email: %s", dist.author_email)
+        write_output("License: %s", dist.license)
+        write_output("Location: %s", dist.location)
+        write_output("Requires: %s", ", ".join(dist.requires))
+        write_output("Required-by: %s", ", ".join(dist.required_by))
+
+        if verbose:
+            write_output("Metadata-Version: %s", dist.metadata_version)
+            write_output("Installer: %s", dist.installer)
+            write_output("Classifiers:")
+            for classifier in dist.classifiers:
+                write_output("  %s", classifier)
+            write_output("Entry-points:")
+            for entry in dist.entry_points:
+                write_output("  %s", entry.strip())
+        if list_files:
+            write_output("Files:")
+            if dist.files is None:
+                write_output("Cannot locate RECORD or installed-files.txt")
+            else:
+                for line in dist.files:
+                    write_output("  %s", line.strip())
+    return results_printed
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/uninstall.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/uninstall.py
new file mode 100644
index 0000000..bb9e8e6
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/uninstall.py
@@ -0,0 +1,105 @@
+import logging
+from optparse import Values
+from typing import List
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.req_command import SessionCommandMixin, warn_if_run_as_root
+from pip._internal.cli.status_codes import SUCCESS
+from pip._internal.exceptions import InstallationError
+from pip._internal.req import parse_requirements
+from pip._internal.req.constructors import (
+    install_req_from_line,
+    install_req_from_parsed_requirement,
+)
+from pip._internal.utils.misc import protect_pip_from_modification_on_windows
+
+logger = logging.getLogger(__name__)
+
+
+class UninstallCommand(Command, SessionCommandMixin):
+    """
+    Uninstall packages.
+
+    pip is able to uninstall most installed packages. Known exceptions are:
+
+    - Pure distutils packages installed with ``python setup.py install``, which
+      leave behind no metadata to determine what files were installed.
+    - Script wrappers installed by ``python setup.py develop``.
+    """
+
+    usage = """
+      %prog [options]  ...
+      %prog [options] -r  ..."""
+
+    def add_options(self) -> None:
+        self.cmd_opts.add_option(
+            "-r",
+            "--requirement",
+            dest="requirements",
+            action="append",
+            default=[],
+            metavar="file",
+            help=(
+                "Uninstall all the packages listed in the given requirements "
+                "file.  This option can be used multiple times."
+            ),
+        )
+        self.cmd_opts.add_option(
+            "-y",
+            "--yes",
+            dest="yes",
+            action="store_true",
+            help="Don't ask for confirmation of uninstall deletions.",
+        )
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options: Values, args: List[str]) -> int:
+        session = self.get_default_session(options)
+
+        reqs_to_uninstall = {}
+        for name in args:
+            req = install_req_from_line(
+                name,
+                isolated=options.isolated_mode,
+            )
+            if req.name:
+                reqs_to_uninstall[canonicalize_name(req.name)] = req
+            else:
+                logger.warning(
+                    "Invalid requirement: %r ignored -"
+                    " the uninstall command expects named"
+                    " requirements.",
+                    name,
+                )
+        for filename in options.requirements:
+            for parsed_req in parse_requirements(
+                filename, options=options, session=session
+            ):
+                req = install_req_from_parsed_requirement(
+                    parsed_req, isolated=options.isolated_mode
+                )
+                if req.name:
+                    reqs_to_uninstall[canonicalize_name(req.name)] = req
+        if not reqs_to_uninstall:
+            raise InstallationError(
+                f"You must give at least one requirement to {self.name} (see "
+                f'"pip help {self.name}")'
+            )
+
+        protect_pip_from_modification_on_windows(
+            modifying_pip="pip" in reqs_to_uninstall
+        )
+
+        for req in reqs_to_uninstall.values():
+            uninstall_pathset = req.uninstall(
+                auto_confirm=options.yes,
+                verbose=self.verbosity > 0,
+            )
+            if uninstall_pathset:
+                uninstall_pathset.commit()
+
+        warn_if_run_as_root()
+        return SUCCESS
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/commands/wheel.py b/utils/python-venv/Lib/site-packages/pip/_internal/commands/wheel.py
new file mode 100644
index 0000000..cea81ee
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/commands/wheel.py
@@ -0,0 +1,177 @@
+import logging
+import os
+import shutil
+from optparse import Values
+from typing import List
+
+from pip._internal.cache import WheelCache
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.req_command import RequirementCommand, with_cleanup
+from pip._internal.cli.status_codes import SUCCESS
+from pip._internal.exceptions import CommandError
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.req.req_tracker import get_requirement_tracker
+from pip._internal.utils.misc import ensure_dir, normalize_path
+from pip._internal.utils.temp_dir import TempDirectory
+from pip._internal.wheel_builder import build, should_build_for_wheel_command
+
+logger = logging.getLogger(__name__)
+
+
+class WheelCommand(RequirementCommand):
+    """
+    Build Wheel archives for your requirements and dependencies.
+
+    Wheel is a built-package format, and offers the advantage of not
+    recompiling your software during every install. For more details, see the
+    wheel docs: https://wheel.readthedocs.io/en/latest/
+
+    Requirements: setuptools>=0.8, and wheel.
+
+    'pip wheel' uses the bdist_wheel setuptools extension from the wheel
+    package to build individual wheels.
+
+    """
+
+    usage = """
+      %prog [options]  ...
+      %prog [options] -r  ...
+      %prog [options] [-e]  ...
+      %prog [options] [-e]  ...
+      %prog [options]  ..."""
+
+    def add_options(self) -> None:
+
+        self.cmd_opts.add_option(
+            "-w",
+            "--wheel-dir",
+            dest="wheel_dir",
+            metavar="dir",
+            default=os.curdir,
+            help=(
+                "Build wheels into , where the default is the "
+                "current working directory."
+            ),
+        )
+        self.cmd_opts.add_option(cmdoptions.no_binary())
+        self.cmd_opts.add_option(cmdoptions.only_binary())
+        self.cmd_opts.add_option(cmdoptions.prefer_binary())
+        self.cmd_opts.add_option(cmdoptions.no_build_isolation())
+        self.cmd_opts.add_option(cmdoptions.use_pep517())
+        self.cmd_opts.add_option(cmdoptions.no_use_pep517())
+        self.cmd_opts.add_option(cmdoptions.constraints())
+        self.cmd_opts.add_option(cmdoptions.editable())
+        self.cmd_opts.add_option(cmdoptions.requirements())
+        self.cmd_opts.add_option(cmdoptions.src())
+        self.cmd_opts.add_option(cmdoptions.ignore_requires_python())
+        self.cmd_opts.add_option(cmdoptions.no_deps())
+        self.cmd_opts.add_option(cmdoptions.progress_bar())
+
+        self.cmd_opts.add_option(
+            "--no-verify",
+            dest="no_verify",
+            action="store_true",
+            default=False,
+            help="Don't verify if built wheel is valid.",
+        )
+
+        self.cmd_opts.add_option(cmdoptions.build_options())
+        self.cmd_opts.add_option(cmdoptions.global_options())
+
+        self.cmd_opts.add_option(
+            "--pre",
+            action="store_true",
+            default=False,
+            help=(
+                "Include pre-release and development versions. By default, "
+                "pip only finds stable versions."
+            ),
+        )
+
+        self.cmd_opts.add_option(cmdoptions.require_hashes())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    @with_cleanup
+    def run(self, options: Values, args: List[str]) -> int:
+        cmdoptions.check_install_build_global(options)
+
+        session = self.get_default_session(options)
+
+        finder = self._build_package_finder(options, session)
+        wheel_cache = WheelCache(options.cache_dir, options.format_control)
+
+        options.wheel_dir = normalize_path(options.wheel_dir)
+        ensure_dir(options.wheel_dir)
+
+        req_tracker = self.enter_context(get_requirement_tracker())
+
+        directory = TempDirectory(
+            delete=not options.no_clean,
+            kind="wheel",
+            globally_managed=True,
+        )
+
+        reqs = self.get_requirements(args, options, finder, session)
+
+        preparer = self.make_requirement_preparer(
+            temp_build_dir=directory,
+            options=options,
+            req_tracker=req_tracker,
+            session=session,
+            finder=finder,
+            download_dir=options.wheel_dir,
+            use_user_site=False,
+        )
+
+        resolver = self.make_resolver(
+            preparer=preparer,
+            finder=finder,
+            options=options,
+            wheel_cache=wheel_cache,
+            ignore_requires_python=options.ignore_requires_python,
+            use_pep517=options.use_pep517,
+        )
+
+        self.trace_basic_info(finder)
+
+        requirement_set = resolver.resolve(reqs, check_supported_wheels=True)
+
+        reqs_to_build: List[InstallRequirement] = []
+        for req in requirement_set.requirements.values():
+            if req.is_wheel:
+                preparer.save_linked_requirement(req)
+            elif should_build_for_wheel_command(req):
+                reqs_to_build.append(req)
+
+        # build wheels
+        build_successes, build_failures = build(
+            reqs_to_build,
+            wheel_cache=wheel_cache,
+            verify=(not options.no_verify),
+            build_options=options.build_options or [],
+            global_options=options.global_options or [],
+        )
+        for req in build_successes:
+            assert req.link and req.link.is_wheel
+            assert req.local_file_path
+            # copy from cache to target directory
+            try:
+                shutil.copy(req.local_file_path, options.wheel_dir)
+            except OSError as e:
+                logger.warning(
+                    "Building wheel for %s failed: %s",
+                    req.name,
+                    e,
+                )
+                build_failures.append(req)
+        if len(build_failures) != 0:
+            raise CommandError("Failed to build one or more wheels")
+
+        return SUCCESS
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/configuration.py b/utils/python-venv/Lib/site-packages/pip/_internal/configuration.py
new file mode 100644
index 0000000..4c3a362
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/configuration.py
@@ -0,0 +1,367 @@
+"""Configuration management setup
+
+Some terminology:
+- name
+  As written in config files.
+- value
+  Value associated with a name
+- key
+  Name combined with it's section (section.name)
+- variant
+  A single word describing where the configuration key-value pair came from
+"""
+
+import configparser
+import locale
+import os
+import sys
+from typing import Any, Dict, Iterable, List, NewType, Optional, Tuple
+
+from pip._internal.exceptions import (
+    ConfigurationError,
+    ConfigurationFileCouldNotBeLoaded,
+)
+from pip._internal.utils import appdirs
+from pip._internal.utils.compat import WINDOWS
+from pip._internal.utils.logging import getLogger
+from pip._internal.utils.misc import ensure_dir, enum
+
+RawConfigParser = configparser.RawConfigParser  # Shorthand
+Kind = NewType("Kind", str)
+
+CONFIG_BASENAME = "pip.ini" if WINDOWS else "pip.conf"
+ENV_NAMES_IGNORED = "version", "help"
+
+# The kinds of configurations there are.
+kinds = enum(
+    USER="user",  # User Specific
+    GLOBAL="global",  # System Wide
+    SITE="site",  # [Virtual] Environment Specific
+    ENV="env",  # from PIP_CONFIG_FILE
+    ENV_VAR="env-var",  # from Environment Variables
+)
+OVERRIDE_ORDER = kinds.GLOBAL, kinds.USER, kinds.SITE, kinds.ENV, kinds.ENV_VAR
+VALID_LOAD_ONLY = kinds.USER, kinds.GLOBAL, kinds.SITE
+
+logger = getLogger(__name__)
+
+
+# NOTE: Maybe use the optionx attribute to normalize keynames.
+def _normalize_name(name: str) -> str:
+    """Make a name consistent regardless of source (environment or file)"""
+    name = name.lower().replace("_", "-")
+    if name.startswith("--"):
+        name = name[2:]  # only prefer long opts
+    return name
+
+
+def _disassemble_key(name: str) -> List[str]:
+    if "." not in name:
+        error_message = (
+            "Key does not contain dot separated section and key. "
+            "Perhaps you wanted to use 'global.{}' instead?"
+        ).format(name)
+        raise ConfigurationError(error_message)
+    return name.split(".", 1)
+
+
+def get_configuration_files() -> Dict[Kind, List[str]]:
+    global_config_files = [
+        os.path.join(path, CONFIG_BASENAME) for path in appdirs.site_config_dirs("pip")
+    ]
+
+    site_config_file = os.path.join(sys.prefix, CONFIG_BASENAME)
+    legacy_config_file = os.path.join(
+        os.path.expanduser("~"),
+        "pip" if WINDOWS else ".pip",
+        CONFIG_BASENAME,
+    )
+    new_config_file = os.path.join(appdirs.user_config_dir("pip"), CONFIG_BASENAME)
+    return {
+        kinds.GLOBAL: global_config_files,
+        kinds.SITE: [site_config_file],
+        kinds.USER: [legacy_config_file, new_config_file],
+    }
+
+
+class Configuration:
+    """Handles management of configuration.
+
+    Provides an interface to accessing and managing configuration files.
+
+    This class converts provides an API that takes "section.key-name" style
+    keys and stores the value associated with it as "key-name" under the
+    section "section".
+
+    This allows for a clean interface wherein the both the section and the
+    key-name are preserved in an easy to manage form in the configuration files
+    and the data stored is also nice.
+    """
+
+    def __init__(self, isolated: bool, load_only: Optional[Kind] = None) -> None:
+        super().__init__()
+
+        if load_only is not None and load_only not in VALID_LOAD_ONLY:
+            raise ConfigurationError(
+                "Got invalid value for load_only - should be one of {}".format(
+                    ", ".join(map(repr, VALID_LOAD_ONLY))
+                )
+            )
+        self.isolated = isolated
+        self.load_only = load_only
+
+        # Because we keep track of where we got the data from
+        self._parsers: Dict[Kind, List[Tuple[str, RawConfigParser]]] = {
+            variant: [] for variant in OVERRIDE_ORDER
+        }
+        self._config: Dict[Kind, Dict[str, Any]] = {
+            variant: {} for variant in OVERRIDE_ORDER
+        }
+        self._modified_parsers: List[Tuple[str, RawConfigParser]] = []
+
+    def load(self) -> None:
+        """Loads configuration from configuration files and environment"""
+        self._load_config_files()
+        if not self.isolated:
+            self._load_environment_vars()
+
+    def get_file_to_edit(self) -> Optional[str]:
+        """Returns the file with highest priority in configuration"""
+        assert self.load_only is not None, "Need to be specified a file to be editing"
+
+        try:
+            return self._get_parser_to_modify()[0]
+        except IndexError:
+            return None
+
+    def items(self) -> Iterable[Tuple[str, Any]]:
+        """Returns key-value pairs like dict.items() representing the loaded
+        configuration
+        """
+        return self._dictionary.items()
+
+    def get_value(self, key: str) -> Any:
+        """Get a value from the configuration."""
+        try:
+            return self._dictionary[key]
+        except KeyError:
+            raise ConfigurationError(f"No such key - {key}")
+
+    def set_value(self, key: str, value: Any) -> None:
+        """Modify a value in the configuration."""
+        self._ensure_have_load_only()
+
+        assert self.load_only
+        fname, parser = self._get_parser_to_modify()
+
+        if parser is not None:
+            section, name = _disassemble_key(key)
+
+            # Modify the parser and the configuration
+            if not parser.has_section(section):
+                parser.add_section(section)
+            parser.set(section, name, value)
+
+        self._config[self.load_only][key] = value
+        self._mark_as_modified(fname, parser)
+
+    def unset_value(self, key: str) -> None:
+        """Unset a value in the configuration."""
+        self._ensure_have_load_only()
+
+        assert self.load_only
+        if key not in self._config[self.load_only]:
+            raise ConfigurationError(f"No such key - {key}")
+
+        fname, parser = self._get_parser_to_modify()
+
+        if parser is not None:
+            section, name = _disassemble_key(key)
+            if not (
+                parser.has_section(section) and parser.remove_option(section, name)
+            ):
+                # The option was not removed.
+                raise ConfigurationError(
+                    "Fatal Internal error [id=1]. Please report as a bug."
+                )
+
+            # The section may be empty after the option was removed.
+            if not parser.items(section):
+                parser.remove_section(section)
+            self._mark_as_modified(fname, parser)
+
+        del self._config[self.load_only][key]
+
+    def save(self) -> None:
+        """Save the current in-memory state."""
+        self._ensure_have_load_only()
+
+        for fname, parser in self._modified_parsers:
+            logger.info("Writing to %s", fname)
+
+            # Ensure directory exists.
+            ensure_dir(os.path.dirname(fname))
+
+            with open(fname, "w") as f:
+                parser.write(f)
+
+    #
+    # Private routines
+    #
+
+    def _ensure_have_load_only(self) -> None:
+        if self.load_only is None:
+            raise ConfigurationError("Needed a specific file to be modifying.")
+        logger.debug("Will be working with %s variant only", self.load_only)
+
+    @property
+    def _dictionary(self) -> Dict[str, Any]:
+        """A dictionary representing the loaded configuration."""
+        # NOTE: Dictionaries are not populated if not loaded. So, conditionals
+        #       are not needed here.
+        retval = {}
+
+        for variant in OVERRIDE_ORDER:
+            retval.update(self._config[variant])
+
+        return retval
+
+    def _load_config_files(self) -> None:
+        """Loads configuration from configuration files"""
+        config_files = dict(self.iter_config_files())
+        if config_files[kinds.ENV][0:1] == [os.devnull]:
+            logger.debug(
+                "Skipping loading configuration files due to "
+                "environment's PIP_CONFIG_FILE being os.devnull"
+            )
+            return
+
+        for variant, files in config_files.items():
+            for fname in files:
+                # If there's specific variant set in `load_only`, load only
+                # that variant, not the others.
+                if self.load_only is not None and variant != self.load_only:
+                    logger.debug("Skipping file '%s' (variant: %s)", fname, variant)
+                    continue
+
+                parser = self._load_file(variant, fname)
+
+                # Keeping track of the parsers used
+                self._parsers[variant].append((fname, parser))
+
+    def _load_file(self, variant: Kind, fname: str) -> RawConfigParser:
+        logger.verbose("For variant '%s', will try loading '%s'", variant, fname)
+        parser = self._construct_parser(fname)
+
+        for section in parser.sections():
+            items = parser.items(section)
+            self._config[variant].update(self._normalized_keys(section, items))
+
+        return parser
+
+    def _construct_parser(self, fname: str) -> RawConfigParser:
+        parser = configparser.RawConfigParser()
+        # If there is no such file, don't bother reading it but create the
+        # parser anyway, to hold the data.
+        # Doing this is useful when modifying and saving files, where we don't
+        # need to construct a parser.
+        if os.path.exists(fname):
+            try:
+                parser.read(fname)
+            except UnicodeDecodeError:
+                # See https://github.com/pypa/pip/issues/4963
+                raise ConfigurationFileCouldNotBeLoaded(
+                    reason="contains invalid {} characters".format(
+                        locale.getpreferredencoding(False)
+                    ),
+                    fname=fname,
+                )
+            except configparser.Error as error:
+                # See https://github.com/pypa/pip/issues/4893
+                raise ConfigurationFileCouldNotBeLoaded(error=error)
+        return parser
+
+    def _load_environment_vars(self) -> None:
+        """Loads configuration from environment variables"""
+        self._config[kinds.ENV_VAR].update(
+            self._normalized_keys(":env:", self.get_environ_vars())
+        )
+
+    def _normalized_keys(
+        self, section: str, items: Iterable[Tuple[str, Any]]
+    ) -> Dict[str, Any]:
+        """Normalizes items to construct a dictionary with normalized keys.
+
+        This routine is where the names become keys and are made the same
+        regardless of source - configuration files or environment.
+        """
+        normalized = {}
+        for name, val in items:
+            key = section + "." + _normalize_name(name)
+            normalized[key] = val
+        return normalized
+
+    def get_environ_vars(self) -> Iterable[Tuple[str, str]]:
+        """Returns a generator with all environmental vars with prefix PIP_"""
+        for key, val in os.environ.items():
+            if key.startswith("PIP_"):
+                name = key[4:].lower()
+                if name not in ENV_NAMES_IGNORED:
+                    yield name, val
+
+    # XXX: This is patched in the tests.
+    def iter_config_files(self) -> Iterable[Tuple[Kind, List[str]]]:
+        """Yields variant and configuration files associated with it.
+
+        This should be treated like items of a dictionary.
+        """
+        # SMELL: Move the conditions out of this function
+
+        # environment variables have the lowest priority
+        config_file = os.environ.get("PIP_CONFIG_FILE", None)
+        if config_file is not None:
+            yield kinds.ENV, [config_file]
+        else:
+            yield kinds.ENV, []
+
+        config_files = get_configuration_files()
+
+        # at the base we have any global configuration
+        yield kinds.GLOBAL, config_files[kinds.GLOBAL]
+
+        # per-user configuration next
+        should_load_user_config = not self.isolated and not (
+            config_file and os.path.exists(config_file)
+        )
+        if should_load_user_config:
+            # The legacy config file is overridden by the new config file
+            yield kinds.USER, config_files[kinds.USER]
+
+        # finally virtualenv configuration first trumping others
+        yield kinds.SITE, config_files[kinds.SITE]
+
+    def get_values_in_config(self, variant: Kind) -> Dict[str, Any]:
+        """Get values present in a config file"""
+        return self._config[variant]
+
+    def _get_parser_to_modify(self) -> Tuple[str, RawConfigParser]:
+        # Determine which parser to modify
+        assert self.load_only
+        parsers = self._parsers[self.load_only]
+        if not parsers:
+            # This should not happen if everything works correctly.
+            raise ConfigurationError(
+                "Fatal Internal error [id=2]. Please report as a bug."
+            )
+
+        # Use the highest priority parser.
+        return parsers[-1]
+
+    # XXX: This is patched in the tests.
+    def _mark_as_modified(self, fname: str, parser: RawConfigParser) -> None:
+        file_parser_tuple = (fname, parser)
+        if file_parser_tuple not in self._modified_parsers:
+            self._modified_parsers.append(file_parser_tuple)
+
+    def __repr__(self) -> str:
+        return f"{self.__class__.__name__}({self._dictionary!r})"
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/distributions/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/__init__.py
new file mode 100644
index 0000000..9a89a83
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/__init__.py
@@ -0,0 +1,21 @@
+from pip._internal.distributions.base import AbstractDistribution
+from pip._internal.distributions.sdist import SourceDistribution
+from pip._internal.distributions.wheel import WheelDistribution
+from pip._internal.req.req_install import InstallRequirement
+
+
+def make_distribution_for_install_requirement(
+    install_req: InstallRequirement,
+) -> AbstractDistribution:
+    """Returns a Distribution for the given InstallRequirement"""
+    # Editable requirements will always be source distributions. They use the
+    # legacy logic until we create a modern standard for them.
+    if install_req.editable:
+        return SourceDistribution(install_req)
+
+    # If it's a wheel, it's a WheelDistribution
+    if install_req.is_wheel:
+        return WheelDistribution(install_req)
+
+    # Otherwise, a SourceDistribution
+    return SourceDistribution(install_req)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/distributions/base.py b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/base.py
new file mode 100644
index 0000000..149fff5
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/base.py
@@ -0,0 +1,36 @@
+import abc
+
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.metadata.base import BaseDistribution
+from pip._internal.req import InstallRequirement
+
+
+class AbstractDistribution(metaclass=abc.ABCMeta):
+    """A base class for handling installable artifacts.
+
+    The requirements for anything installable are as follows:
+
+     - we must be able to determine the requirement name
+       (or we can't correctly handle the non-upgrade case).
+
+     - for packages with setup requirements, we must also be able
+       to determine their requirements without installing additional
+       packages (for the same reason as run-time dependencies)
+
+     - we must be able to create a Distribution object exposing the
+       above metadata.
+    """
+
+    def __init__(self, req: InstallRequirement) -> None:
+        super().__init__()
+        self.req = req
+
+    @abc.abstractmethod
+    def get_metadata_distribution(self) -> BaseDistribution:
+        raise NotImplementedError()
+
+    @abc.abstractmethod
+    def prepare_distribution_metadata(
+        self, finder: PackageFinder, build_isolation: bool
+    ) -> None:
+        raise NotImplementedError()
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/distributions/installed.py b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/installed.py
new file mode 100644
index 0000000..6c8c179
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/installed.py
@@ -0,0 +1,22 @@
+from pip._internal.distributions.base import AbstractDistribution
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.metadata import BaseDistribution
+
+
+class InstalledDistribution(AbstractDistribution):
+    """Represents an installed package.
+
+    This does not need any preparation as the required information has already
+    been computed.
+    """
+
+    def get_metadata_distribution(self) -> BaseDistribution:
+        from pip._internal.metadata.pkg_resources import Distribution as _Dist
+
+        assert self.req.satisfied_by is not None, "not actually installed"
+        return _Dist(self.req.satisfied_by)
+
+    def prepare_distribution_metadata(
+        self, finder: PackageFinder, build_isolation: bool
+    ) -> None:
+        pass
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/distributions/sdist.py b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/sdist.py
new file mode 100644
index 0000000..cd85ac5
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/sdist.py
@@ -0,0 +1,129 @@
+import logging
+from typing import Iterable, Set, Tuple
+
+from pip._internal.build_env import BuildEnvironment
+from pip._internal.distributions.base import AbstractDistribution
+from pip._internal.exceptions import InstallationError
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.metadata import BaseDistribution
+from pip._internal.utils.subprocess import runner_with_spinner_message
+
+logger = logging.getLogger(__name__)
+
+
+class SourceDistribution(AbstractDistribution):
+    """Represents a source distribution.
+
+    The preparation step for these needs metadata for the packages to be
+    generated, either using PEP 517 or using the legacy `setup.py egg_info`.
+    """
+
+    def get_metadata_distribution(self) -> BaseDistribution:
+        from pip._internal.metadata.pkg_resources import Distribution as _Dist
+
+        return _Dist(self.req.get_dist())
+
+    def prepare_distribution_metadata(
+        self, finder: PackageFinder, build_isolation: bool
+    ) -> None:
+        # Load pyproject.toml, to determine whether PEP 517 is to be used
+        self.req.load_pyproject_toml()
+
+        # Set up the build isolation, if this requirement should be isolated
+        should_isolate = self.req.use_pep517 and build_isolation
+        if should_isolate:
+            # Setup an isolated environment and install the build backend static
+            # requirements in it.
+            self._prepare_build_backend(finder)
+            # Check that if the requirement is editable, it either supports PEP 660 or
+            # has a setup.py or a setup.cfg. This cannot be done earlier because we need
+            # to setup the build backend to verify it supports build_editable, nor can
+            # it be done later, because we want to avoid installing build requirements
+            # needlessly. Doing it here also works around setuptools generating
+            # UNKNOWN.egg-info when running get_requires_for_build_wheel on a directory
+            # without setup.py nor setup.cfg.
+            self.req.isolated_editable_sanity_check()
+            # Install the dynamic build requirements.
+            self._install_build_reqs(finder)
+
+        self.req.prepare_metadata()
+
+    def _prepare_build_backend(self, finder: PackageFinder) -> None:
+        # Isolate in a BuildEnvironment and install the build-time
+        # requirements.
+        pyproject_requires = self.req.pyproject_requires
+        assert pyproject_requires is not None
+
+        self.req.build_env = BuildEnvironment()
+        self.req.build_env.install_requirements(
+            finder, pyproject_requires, "overlay", "Installing build dependencies"
+        )
+        conflicting, missing = self.req.build_env.check_requirements(
+            self.req.requirements_to_check
+        )
+        if conflicting:
+            self._raise_conflicts("PEP 517/518 supported requirements", conflicting)
+        if missing:
+            logger.warning(
+                "Missing build requirements in pyproject.toml for %s.",
+                self.req,
+            )
+            logger.warning(
+                "The project does not specify a build backend, and "
+                "pip cannot fall back to setuptools without %s.",
+                " and ".join(map(repr, sorted(missing))),
+            )
+
+    def _get_build_requires_wheel(self) -> Iterable[str]:
+        with self.req.build_env:
+            runner = runner_with_spinner_message("Getting requirements to build wheel")
+            backend = self.req.pep517_backend
+            assert backend is not None
+            with backend.subprocess_runner(runner):
+                return backend.get_requires_for_build_wheel()
+
+    def _get_build_requires_editable(self) -> Iterable[str]:
+        with self.req.build_env:
+            runner = runner_with_spinner_message(
+                "Getting requirements to build editable"
+            )
+            backend = self.req.pep517_backend
+            assert backend is not None
+            with backend.subprocess_runner(runner):
+                return backend.get_requires_for_build_editable()
+
+    def _install_build_reqs(self, finder: PackageFinder) -> None:
+        # Install any extra build dependencies that the backend requests.
+        # This must be done in a second pass, as the pyproject.toml
+        # dependencies must be installed before we can call the backend.
+        if (
+            self.req.editable
+            and self.req.permit_editable_wheels
+            and self.req.supports_pyproject_editable()
+        ):
+            build_reqs = self._get_build_requires_editable()
+        else:
+            build_reqs = self._get_build_requires_wheel()
+        conflicting, missing = self.req.build_env.check_requirements(build_reqs)
+        if conflicting:
+            self._raise_conflicts("the backend dependencies", conflicting)
+        self.req.build_env.install_requirements(
+            finder, missing, "normal", "Installing backend dependencies"
+        )
+
+    def _raise_conflicts(
+        self, conflicting_with: str, conflicting_reqs: Set[Tuple[str, str]]
+    ) -> None:
+        format_string = (
+            "Some build dependencies for {requirement} "
+            "conflict with {conflicting_with}: {description}."
+        )
+        error_message = format_string.format(
+            requirement=self.req,
+            conflicting_with=conflicting_with,
+            description=", ".join(
+                f"{installed} is incompatible with {wanted}"
+                for installed, wanted in sorted(conflicting_reqs)
+            ),
+        )
+        raise InstallationError(error_message)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/distributions/wheel.py b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/wheel.py
new file mode 100644
index 0000000..340b0f3
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/distributions/wheel.py
@@ -0,0 +1,31 @@
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.distributions.base import AbstractDistribution
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.metadata import (
+    BaseDistribution,
+    FilesystemWheel,
+    get_wheel_distribution,
+)
+
+
+class WheelDistribution(AbstractDistribution):
+    """Represents a wheel distribution.
+
+    This does not need any preparation as wheels can be directly unpacked.
+    """
+
+    def get_metadata_distribution(self) -> BaseDistribution:
+        """Loads the metadata from the wheel file into memory and returns a
+        Distribution that uses it, not relying on the wheel file or
+        requirement.
+        """
+        assert self.req.local_file_path, "Set as part of preparation during download"
+        assert self.req.name, "Wheels are never unnamed"
+        wheel = FilesystemWheel(self.req.local_file_path)
+        return get_wheel_distribution(wheel, canonicalize_name(self.req.name))
+
+    def prepare_distribution_metadata(
+        self, finder: PackageFinder, build_isolation: bool
+    ) -> None:
+        pass
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/exceptions.py b/utils/python-venv/Lib/site-packages/pip/_internal/exceptions.py
new file mode 100644
index 0000000..ef5bc75
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/exceptions.py
@@ -0,0 +1,402 @@
+"""Exceptions used throughout package"""
+
+import configparser
+from itertools import chain, groupby, repeat
+from typing import TYPE_CHECKING, Dict, List, Optional, Union
+
+from pip._vendor.pkg_resources import Distribution
+from pip._vendor.requests.models import Request, Response
+
+if TYPE_CHECKING:
+    from hashlib import _Hash
+
+    from pip._internal.metadata import BaseDistribution
+    from pip._internal.req.req_install import InstallRequirement
+
+
+class PipError(Exception):
+    """Base pip exception"""
+
+
+class ConfigurationError(PipError):
+    """General exception in configuration"""
+
+
+class InstallationError(PipError):
+    """General exception during installation"""
+
+
+class UninstallationError(PipError):
+    """General exception during uninstallation"""
+
+
+class NoneMetadataError(PipError):
+    """
+    Raised when accessing "METADATA" or "PKG-INFO" metadata for a
+    pip._vendor.pkg_resources.Distribution object and
+    `dist.has_metadata('METADATA')` returns True but
+    `dist.get_metadata('METADATA')` returns None (and similarly for
+    "PKG-INFO").
+    """
+
+    def __init__(
+        self,
+        dist: Union[Distribution, "BaseDistribution"],
+        metadata_name: str,
+    ) -> None:
+        """
+        :param dist: A Distribution object.
+        :param metadata_name: The name of the metadata being accessed
+            (can be "METADATA" or "PKG-INFO").
+        """
+        self.dist = dist
+        self.metadata_name = metadata_name
+
+    def __str__(self) -> str:
+        # Use `dist` in the error message because its stringification
+        # includes more information, like the version and location.
+        return "None {} metadata found for distribution: {}".format(
+            self.metadata_name,
+            self.dist,
+        )
+
+
+class UserInstallationInvalid(InstallationError):
+    """A --user install is requested on an environment without user site."""
+
+    def __str__(self) -> str:
+        return "User base directory is not specified"
+
+
+class InvalidSchemeCombination(InstallationError):
+    def __str__(self) -> str:
+        before = ", ".join(str(a) for a in self.args[:-1])
+        return f"Cannot set {before} and {self.args[-1]} together"
+
+
+class DistributionNotFound(InstallationError):
+    """Raised when a distribution cannot be found to satisfy a requirement"""
+
+
+class RequirementsFileParseError(InstallationError):
+    """Raised when a general error occurs parsing a requirements file line."""
+
+
+class BestVersionAlreadyInstalled(PipError):
+    """Raised when the most up-to-date version of a package is already
+    installed."""
+
+
+class BadCommand(PipError):
+    """Raised when virtualenv or a command is not found"""
+
+
+class CommandError(PipError):
+    """Raised when there is an error in command-line arguments"""
+
+
+class PreviousBuildDirError(PipError):
+    """Raised when there's a previous conflicting build directory"""
+
+
+class NetworkConnectionError(PipError):
+    """HTTP connection error"""
+
+    def __init__(
+        self, error_msg: str, response: Response = None, request: Request = None
+    ) -> None:
+        """
+        Initialize NetworkConnectionError with  `request` and `response`
+        objects.
+        """
+        self.response = response
+        self.request = request
+        self.error_msg = error_msg
+        if (
+            self.response is not None
+            and not self.request
+            and hasattr(response, "request")
+        ):
+            self.request = self.response.request
+        super().__init__(error_msg, response, request)
+
+    def __str__(self) -> str:
+        return str(self.error_msg)
+
+
+class InvalidWheelFilename(InstallationError):
+    """Invalid wheel filename."""
+
+
+class UnsupportedWheel(InstallationError):
+    """Unsupported wheel."""
+
+
+class MetadataInconsistent(InstallationError):
+    """Built metadata contains inconsistent information.
+
+    This is raised when the metadata contains values (e.g. name and version)
+    that do not match the information previously obtained from sdist filename
+    or user-supplied ``#egg=`` value.
+    """
+
+    def __init__(
+        self, ireq: "InstallRequirement", field: str, f_val: str, m_val: str
+    ) -> None:
+        self.ireq = ireq
+        self.field = field
+        self.f_val = f_val
+        self.m_val = m_val
+
+    def __str__(self) -> str:
+        template = (
+            "Requested {} has inconsistent {}: "
+            "filename has {!r}, but metadata has {!r}"
+        )
+        return template.format(self.ireq, self.field, self.f_val, self.m_val)
+
+
+class InstallationSubprocessError(InstallationError):
+    """A subprocess call failed during installation."""
+
+    def __init__(self, returncode: int, description: str) -> None:
+        self.returncode = returncode
+        self.description = description
+
+    def __str__(self) -> str:
+        return (
+            "Command errored out with exit status {}: {} "
+            "Check the logs for full command output."
+        ).format(self.returncode, self.description)
+
+
+class HashErrors(InstallationError):
+    """Multiple HashError instances rolled into one for reporting"""
+
+    def __init__(self) -> None:
+        self.errors: List["HashError"] = []
+
+    def append(self, error: "HashError") -> None:
+        self.errors.append(error)
+
+    def __str__(self) -> str:
+        lines = []
+        self.errors.sort(key=lambda e: e.order)
+        for cls, errors_of_cls in groupby(self.errors, lambda e: e.__class__):
+            lines.append(cls.head)
+            lines.extend(e.body() for e in errors_of_cls)
+        if lines:
+            return "\n".join(lines)
+        return ""
+
+    def __bool__(self) -> bool:
+        return bool(self.errors)
+
+
+class HashError(InstallationError):
+    """
+    A failure to verify a package against known-good hashes
+
+    :cvar order: An int sorting hash exception classes by difficulty of
+        recovery (lower being harder), so the user doesn't bother fretting
+        about unpinned packages when he has deeper issues, like VCS
+        dependencies, to deal with. Also keeps error reports in a
+        deterministic order.
+    :cvar head: A section heading for display above potentially many
+        exceptions of this kind
+    :ivar req: The InstallRequirement that triggered this error. This is
+        pasted on after the exception is instantiated, because it's not
+        typically available earlier.
+
+    """
+
+    req: Optional["InstallRequirement"] = None
+    head = ""
+    order: int = -1
+
+    def body(self) -> str:
+        """Return a summary of me for display under the heading.
+
+        This default implementation simply prints a description of the
+        triggering requirement.
+
+        :param req: The InstallRequirement that provoked this error, with
+            its link already populated by the resolver's _populate_link().
+
+        """
+        return f"    {self._requirement_name()}"
+
+    def __str__(self) -> str:
+        return f"{self.head}\n{self.body()}"
+
+    def _requirement_name(self) -> str:
+        """Return a description of the requirement that triggered me.
+
+        This default implementation returns long description of the req, with
+        line numbers
+
+        """
+        return str(self.req) if self.req else "unknown package"
+
+
+class VcsHashUnsupported(HashError):
+    """A hash was provided for a version-control-system-based requirement, but
+    we don't have a method for hashing those."""
+
+    order = 0
+    head = (
+        "Can't verify hashes for these requirements because we don't "
+        "have a way to hash version control repositories:"
+    )
+
+
+class DirectoryUrlHashUnsupported(HashError):
+    """A hash was provided for a version-control-system-based requirement, but
+    we don't have a method for hashing those."""
+
+    order = 1
+    head = (
+        "Can't verify hashes for these file:// requirements because they "
+        "point to directories:"
+    )
+
+
+class HashMissing(HashError):
+    """A hash was needed for a requirement but is absent."""
+
+    order = 2
+    head = (
+        "Hashes are required in --require-hashes mode, but they are "
+        "missing from some requirements. Here is a list of those "
+        "requirements along with the hashes their downloaded archives "
+        "actually had. Add lines like these to your requirements files to "
+        "prevent tampering. (If you did not enable --require-hashes "
+        "manually, note that it turns on automatically when any package "
+        "has a hash.)"
+    )
+
+    def __init__(self, gotten_hash: str) -> None:
+        """
+        :param gotten_hash: The hash of the (possibly malicious) archive we
+            just downloaded
+        """
+        self.gotten_hash = gotten_hash
+
+    def body(self) -> str:
+        # Dodge circular import.
+        from pip._internal.utils.hashes import FAVORITE_HASH
+
+        package = None
+        if self.req:
+            # In the case of URL-based requirements, display the original URL
+            # seen in the requirements file rather than the package name,
+            # so the output can be directly copied into the requirements file.
+            package = (
+                self.req.original_link
+                if self.req.original_link
+                # In case someone feeds something downright stupid
+                # to InstallRequirement's constructor.
+                else getattr(self.req, "req", None)
+            )
+        return "    {} --hash={}:{}".format(
+            package or "unknown package", FAVORITE_HASH, self.gotten_hash
+        )
+
+
+class HashUnpinned(HashError):
+    """A requirement had a hash specified but was not pinned to a specific
+    version."""
+
+    order = 3
+    head = (
+        "In --require-hashes mode, all requirements must have their "
+        "versions pinned with ==. These do not:"
+    )
+
+
+class HashMismatch(HashError):
+    """
+    Distribution file hash values don't match.
+
+    :ivar package_name: The name of the package that triggered the hash
+        mismatch. Feel free to write to this after the exception is raise to
+        improve its error message.
+
+    """
+
+    order = 4
+    head = (
+        "THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS "
+        "FILE. If you have updated the package versions, please update "
+        "the hashes. Otherwise, examine the package contents carefully; "
+        "someone may have tampered with them."
+    )
+
+    def __init__(self, allowed: Dict[str, List[str]], gots: Dict[str, "_Hash"]) -> None:
+        """
+        :param allowed: A dict of algorithm names pointing to lists of allowed
+            hex digests
+        :param gots: A dict of algorithm names pointing to hashes we
+            actually got from the files under suspicion
+        """
+        self.allowed = allowed
+        self.gots = gots
+
+    def body(self) -> str:
+        return "    {}:\n{}".format(self._requirement_name(), self._hash_comparison())
+
+    def _hash_comparison(self) -> str:
+        """
+        Return a comparison of actual and expected hash values.
+
+        Example::
+
+               Expected sha256 abcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcde
+                            or 123451234512345123451234512345123451234512345
+                    Got        bcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdef
+
+        """
+
+        def hash_then_or(hash_name: str) -> "chain[str]":
+            # For now, all the decent hashes have 6-char names, so we can get
+            # away with hard-coding space literals.
+            return chain([hash_name], repeat("    or"))
+
+        lines: List[str] = []
+        for hash_name, expecteds in self.allowed.items():
+            prefix = hash_then_or(hash_name)
+            lines.extend(
+                ("        Expected {} {}".format(next(prefix), e)) for e in expecteds
+            )
+            lines.append(
+                "             Got        {}\n".format(self.gots[hash_name].hexdigest())
+            )
+        return "\n".join(lines)
+
+
+class UnsupportedPythonVersion(InstallationError):
+    """Unsupported python version according to Requires-Python package
+    metadata."""
+
+
+class ConfigurationFileCouldNotBeLoaded(ConfigurationError):
+    """When there are errors while loading a configuration file"""
+
+    def __init__(
+        self,
+        reason: str = "could not be loaded",
+        fname: Optional[str] = None,
+        error: Optional[configparser.Error] = None,
+    ) -> None:
+        super().__init__(error)
+        self.reason = reason
+        self.fname = fname
+        self.error = error
+
+    def __str__(self) -> str:
+        if self.fname is not None:
+            message_part = f" in {self.fname}."
+        else:
+            assert self.error is not None
+            message_part = f".\n{self.error}\n"
+        return f"Configuration file {self.reason}{message_part}"
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/index/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/index/__init__.py
new file mode 100644
index 0000000..7a17b7b
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/index/__init__.py
@@ -0,0 +1,2 @@
+"""Index interaction code
+"""
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/index/collector.py b/utils/python-venv/Lib/site-packages/pip/_internal/index/collector.py
new file mode 100644
index 0000000..d941223
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/index/collector.py
@@ -0,0 +1,536 @@
+"""
+The main purpose of this module is to expose LinkCollector.collect_sources().
+"""
+
+import cgi
+import collections
+import functools
+import itertools
+import logging
+import os
+import re
+import urllib.parse
+import urllib.request
+import xml.etree.ElementTree
+from optparse import Values
+from typing import (
+    Callable,
+    Iterable,
+    List,
+    MutableMapping,
+    NamedTuple,
+    Optional,
+    Sequence,
+    Union,
+)
+
+from pip._vendor import html5lib, requests
+from pip._vendor.requests import Response
+from pip._vendor.requests.exceptions import RetryError, SSLError
+
+from pip._internal.exceptions import NetworkConnectionError
+from pip._internal.models.link import Link
+from pip._internal.models.search_scope import SearchScope
+from pip._internal.network.session import PipSession
+from pip._internal.network.utils import raise_for_status
+from pip._internal.utils.filetypes import is_archive_file
+from pip._internal.utils.misc import pairwise, redact_auth_from_url
+from pip._internal.vcs import vcs
+
+from .sources import CandidatesFromPage, LinkSource, build_source
+
+logger = logging.getLogger(__name__)
+
+HTMLElement = xml.etree.ElementTree.Element
+ResponseHeaders = MutableMapping[str, str]
+
+
+def _match_vcs_scheme(url: str) -> Optional[str]:
+    """Look for VCS schemes in the URL.
+
+    Returns the matched VCS scheme, or None if there's no match.
+    """
+    for scheme in vcs.schemes:
+        if url.lower().startswith(scheme) and url[len(scheme)] in "+:":
+            return scheme
+    return None
+
+
+class _NotHTML(Exception):
+    def __init__(self, content_type: str, request_desc: str) -> None:
+        super().__init__(content_type, request_desc)
+        self.content_type = content_type
+        self.request_desc = request_desc
+
+
+def _ensure_html_header(response: Response) -> None:
+    """Check the Content-Type header to ensure the response contains HTML.
+
+    Raises `_NotHTML` if the content type is not text/html.
+    """
+    content_type = response.headers.get("Content-Type", "")
+    if not content_type.lower().startswith("text/html"):
+        raise _NotHTML(content_type, response.request.method)
+
+
+class _NotHTTP(Exception):
+    pass
+
+
+def _ensure_html_response(url: str, session: PipSession) -> None:
+    """Send a HEAD request to the URL, and ensure the response contains HTML.
+
+    Raises `_NotHTTP` if the URL is not available for a HEAD request, or
+    `_NotHTML` if the content type is not text/html.
+    """
+    scheme, netloc, path, query, fragment = urllib.parse.urlsplit(url)
+    if scheme not in {"http", "https"}:
+        raise _NotHTTP()
+
+    resp = session.head(url, allow_redirects=True)
+    raise_for_status(resp)
+
+    _ensure_html_header(resp)
+
+
+def _get_html_response(url: str, session: PipSession) -> Response:
+    """Access an HTML page with GET, and return the response.
+
+    This consists of three parts:
+
+    1. If the URL looks suspiciously like an archive, send a HEAD first to
+       check the Content-Type is HTML, to avoid downloading a large file.
+       Raise `_NotHTTP` if the content type cannot be determined, or
+       `_NotHTML` if it is not HTML.
+    2. Actually perform the request. Raise HTTP exceptions on network failures.
+    3. Check the Content-Type header to make sure we got HTML, and raise
+       `_NotHTML` otherwise.
+    """
+    if is_archive_file(Link(url).filename):
+        _ensure_html_response(url, session=session)
+
+    logger.debug("Getting page %s", redact_auth_from_url(url))
+
+    resp = session.get(
+        url,
+        headers={
+            "Accept": "text/html",
+            # We don't want to blindly returned cached data for
+            # /simple/, because authors generally expecting that
+            # twine upload && pip install will function, but if
+            # they've done a pip install in the last ~10 minutes
+            # it won't. Thus by setting this to zero we will not
+            # blindly use any cached data, however the benefit of
+            # using max-age=0 instead of no-cache, is that we will
+            # still support conditional requests, so we will still
+            # minimize traffic sent in cases where the page hasn't
+            # changed at all, we will just always incur the round
+            # trip for the conditional GET now instead of only
+            # once per 10 minutes.
+            # For more information, please see pypa/pip#5670.
+            "Cache-Control": "max-age=0",
+        },
+    )
+    raise_for_status(resp)
+
+    # The check for archives above only works if the url ends with
+    # something that looks like an archive. However that is not a
+    # requirement of an url. Unless we issue a HEAD request on every
+    # url we cannot know ahead of time for sure if something is HTML
+    # or not. However we can check after we've downloaded it.
+    _ensure_html_header(resp)
+
+    return resp
+
+
+def _get_encoding_from_headers(headers: ResponseHeaders) -> Optional[str]:
+    """Determine if we have any encoding information in our headers."""
+    if headers and "Content-Type" in headers:
+        content_type, params = cgi.parse_header(headers["Content-Type"])
+        if "charset" in params:
+            return params["charset"]
+    return None
+
+
+def _determine_base_url(document: HTMLElement, page_url: str) -> str:
+    """Determine the HTML document's base URL.
+
+    This looks for a ```` tag in the HTML document. If present, its href
+    attribute denotes the base URL of anchor tags in the document. If there is
+    no such tag (or if it does not have a valid href attribute), the HTML
+    file's URL is used as the base URL.
+
+    :param document: An HTML document representation. The current
+        implementation expects the result of ``html5lib.parse()``.
+    :param page_url: The URL of the HTML document.
+    """
+    for base in document.findall(".//base"):
+        href = base.get("href")
+        if href is not None:
+            return href
+    return page_url
+
+
+def _clean_url_path_part(part: str) -> str:
+    """
+    Clean a "part" of a URL path (i.e. after splitting on "@" characters).
+    """
+    # We unquote prior to quoting to make sure nothing is double quoted.
+    return urllib.parse.quote(urllib.parse.unquote(part))
+
+
+def _clean_file_url_path(part: str) -> str:
+    """
+    Clean the first part of a URL path that corresponds to a local
+    filesystem path (i.e. the first part after splitting on "@" characters).
+    """
+    # We unquote prior to quoting to make sure nothing is double quoted.
+    # Also, on Windows the path part might contain a drive letter which
+    # should not be quoted. On Linux where drive letters do not
+    # exist, the colon should be quoted. We rely on urllib.request
+    # to do the right thing here.
+    return urllib.request.pathname2url(urllib.request.url2pathname(part))
+
+
+# percent-encoded:                   /
+_reserved_chars_re = re.compile("(@|%2F)", re.IGNORECASE)
+
+
+def _clean_url_path(path: str, is_local_path: bool) -> str:
+    """
+    Clean the path portion of a URL.
+    """
+    if is_local_path:
+        clean_func = _clean_file_url_path
+    else:
+        clean_func = _clean_url_path_part
+
+    # Split on the reserved characters prior to cleaning so that
+    # revision strings in VCS URLs are properly preserved.
+    parts = _reserved_chars_re.split(path)
+
+    cleaned_parts = []
+    for to_clean, reserved in pairwise(itertools.chain(parts, [""])):
+        cleaned_parts.append(clean_func(to_clean))
+        # Normalize %xx escapes (e.g. %2f -> %2F)
+        cleaned_parts.append(reserved.upper())
+
+    return "".join(cleaned_parts)
+
+
+def _clean_link(url: str) -> str:
+    """
+    Make sure a link is fully quoted.
+    For example, if ' ' occurs in the URL, it will be replaced with "%20",
+    and without double-quoting other characters.
+    """
+    # Split the URL into parts according to the general structure
+    # `scheme://netloc/path;parameters?query#fragment`.
+    result = urllib.parse.urlparse(url)
+    # If the netloc is empty, then the URL refers to a local filesystem path.
+    is_local_path = not result.netloc
+    path = _clean_url_path(result.path, is_local_path=is_local_path)
+    return urllib.parse.urlunparse(result._replace(path=path))
+
+
+def _create_link_from_element(
+    anchor: HTMLElement,
+    page_url: str,
+    base_url: str,
+) -> Optional[Link]:
+    """
+    Convert an anchor element in a simple repository page to a Link.
+    """
+    href = anchor.get("href")
+    if not href:
+        return None
+
+    url = _clean_link(urllib.parse.urljoin(base_url, href))
+    pyrequire = anchor.get("data-requires-python")
+    yanked_reason = anchor.get("data-yanked")
+
+    link = Link(
+        url,
+        comes_from=page_url,
+        requires_python=pyrequire,
+        yanked_reason=yanked_reason,
+    )
+
+    return link
+
+
+class CacheablePageContent:
+    def __init__(self, page: "HTMLPage") -> None:
+        assert page.cache_link_parsing
+        self.page = page
+
+    def __eq__(self, other: object) -> bool:
+        return isinstance(other, type(self)) and self.page.url == other.page.url
+
+    def __hash__(self) -> int:
+        return hash(self.page.url)
+
+
+def with_cached_html_pages(
+    fn: Callable[["HTMLPage"], Iterable[Link]],
+) -> Callable[["HTMLPage"], List[Link]]:
+    """
+    Given a function that parses an Iterable[Link] from an HTMLPage, cache the
+    function's result (keyed by CacheablePageContent), unless the HTMLPage
+    `page` has `page.cache_link_parsing == False`.
+    """
+
+    @functools.lru_cache(maxsize=None)
+    def wrapper(cacheable_page: CacheablePageContent) -> List[Link]:
+        return list(fn(cacheable_page.page))
+
+    @functools.wraps(fn)
+    def wrapper_wrapper(page: "HTMLPage") -> List[Link]:
+        if page.cache_link_parsing:
+            return wrapper(CacheablePageContent(page))
+        return list(fn(page))
+
+    return wrapper_wrapper
+
+
+@with_cached_html_pages
+def parse_links(page: "HTMLPage") -> Iterable[Link]:
+    """
+    Parse an HTML document, and yield its anchor elements as Link objects.
+    """
+    document = html5lib.parse(
+        page.content,
+        transport_encoding=page.encoding,
+        namespaceHTMLElements=False,
+    )
+
+    url = page.url
+    base_url = _determine_base_url(document, url)
+    for anchor in document.findall(".//a"):
+        link = _create_link_from_element(
+            anchor,
+            page_url=url,
+            base_url=base_url,
+        )
+        if link is None:
+            continue
+        yield link
+
+
+class HTMLPage:
+    """Represents one page, along with its URL"""
+
+    def __init__(
+        self,
+        content: bytes,
+        encoding: Optional[str],
+        url: str,
+        cache_link_parsing: bool = True,
+    ) -> None:
+        """
+        :param encoding: the encoding to decode the given content.
+        :param url: the URL from which the HTML was downloaded.
+        :param cache_link_parsing: whether links parsed from this page's url
+                                   should be cached. PyPI index urls should
+                                   have this set to False, for example.
+        """
+        self.content = content
+        self.encoding = encoding
+        self.url = url
+        self.cache_link_parsing = cache_link_parsing
+
+    def __str__(self) -> str:
+        return redact_auth_from_url(self.url)
+
+
+def _handle_get_page_fail(
+    link: Link,
+    reason: Union[str, Exception],
+    meth: Optional[Callable[..., None]] = None,
+) -> None:
+    if meth is None:
+        meth = logger.debug
+    meth("Could not fetch URL %s: %s - skipping", link, reason)
+
+
+def _make_html_page(response: Response, cache_link_parsing: bool = True) -> HTMLPage:
+    encoding = _get_encoding_from_headers(response.headers)
+    return HTMLPage(
+        response.content,
+        encoding=encoding,
+        url=response.url,
+        cache_link_parsing=cache_link_parsing,
+    )
+
+
+def _get_html_page(
+    link: Link, session: Optional[PipSession] = None
+) -> Optional["HTMLPage"]:
+    if session is None:
+        raise TypeError(
+            "_get_html_page() missing 1 required keyword argument: 'session'"
+        )
+
+    url = link.url.split("#", 1)[0]
+
+    # Check for VCS schemes that do not support lookup as web pages.
+    vcs_scheme = _match_vcs_scheme(url)
+    if vcs_scheme:
+        logger.warning(
+            "Cannot look at %s URL %s because it does not support lookup as web pages.",
+            vcs_scheme,
+            link,
+        )
+        return None
+
+    # Tack index.html onto file:// URLs that point to directories
+    scheme, _, path, _, _, _ = urllib.parse.urlparse(url)
+    if scheme == "file" and os.path.isdir(urllib.request.url2pathname(path)):
+        # add trailing slash if not present so urljoin doesn't trim
+        # final segment
+        if not url.endswith("/"):
+            url += "/"
+        url = urllib.parse.urljoin(url, "index.html")
+        logger.debug(" file: URL is directory, getting %s", url)
+
+    try:
+        resp = _get_html_response(url, session=session)
+    except _NotHTTP:
+        logger.warning(
+            "Skipping page %s because it looks like an archive, and cannot "
+            "be checked by a HTTP HEAD request.",
+            link,
+        )
+    except _NotHTML as exc:
+        logger.warning(
+            "Skipping page %s because the %s request got Content-Type: %s."
+            "The only supported Content-Type is text/html",
+            link,
+            exc.request_desc,
+            exc.content_type,
+        )
+    except NetworkConnectionError as exc:
+        _handle_get_page_fail(link, exc)
+    except RetryError as exc:
+        _handle_get_page_fail(link, exc)
+    except SSLError as exc:
+        reason = "There was a problem confirming the ssl certificate: "
+        reason += str(exc)
+        _handle_get_page_fail(link, reason, meth=logger.info)
+    except requests.ConnectionError as exc:
+        _handle_get_page_fail(link, f"connection error: {exc}")
+    except requests.Timeout:
+        _handle_get_page_fail(link, "timed out")
+    else:
+        return _make_html_page(resp, cache_link_parsing=link.cache_link_parsing)
+    return None
+
+
+class CollectedSources(NamedTuple):
+    find_links: Sequence[Optional[LinkSource]]
+    index_urls: Sequence[Optional[LinkSource]]
+
+
+class LinkCollector:
+
+    """
+    Responsible for collecting Link objects from all configured locations,
+    making network requests as needed.
+
+    The class's main method is its collect_sources() method.
+    """
+
+    def __init__(
+        self,
+        session: PipSession,
+        search_scope: SearchScope,
+    ) -> None:
+        self.search_scope = search_scope
+        self.session = session
+
+    @classmethod
+    def create(
+        cls,
+        session: PipSession,
+        options: Values,
+        suppress_no_index: bool = False,
+    ) -> "LinkCollector":
+        """
+        :param session: The Session to use to make requests.
+        :param suppress_no_index: Whether to ignore the --no-index option
+            when constructing the SearchScope object.
+        """
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index and not suppress_no_index:
+            logger.debug(
+                "Ignoring indexes: %s",
+                ",".join(redact_auth_from_url(url) for url in index_urls),
+            )
+            index_urls = []
+
+        # Make sure find_links is a list before passing to create().
+        find_links = options.find_links or []
+
+        search_scope = SearchScope.create(
+            find_links=find_links,
+            index_urls=index_urls,
+        )
+        link_collector = LinkCollector(
+            session=session,
+            search_scope=search_scope,
+        )
+        return link_collector
+
+    @property
+    def find_links(self) -> List[str]:
+        return self.search_scope.find_links
+
+    def fetch_page(self, location: Link) -> Optional[HTMLPage]:
+        """
+        Fetch an HTML page containing package links.
+        """
+        return _get_html_page(location, session=self.session)
+
+    def collect_sources(
+        self,
+        project_name: str,
+        candidates_from_page: CandidatesFromPage,
+    ) -> CollectedSources:
+        # The OrderedDict calls deduplicate sources by URL.
+        index_url_sources = collections.OrderedDict(
+            build_source(
+                loc,
+                candidates_from_page=candidates_from_page,
+                page_validator=self.session.is_secure_origin,
+                expand_dir=False,
+                cache_link_parsing=False,
+            )
+            for loc in self.search_scope.get_index_urls_locations(project_name)
+        ).values()
+        find_links_sources = collections.OrderedDict(
+            build_source(
+                loc,
+                candidates_from_page=candidates_from_page,
+                page_validator=self.session.is_secure_origin,
+                expand_dir=True,
+                cache_link_parsing=True,
+            )
+            for loc in self.find_links
+        ).values()
+
+        if logger.isEnabledFor(logging.DEBUG):
+            lines = [
+                f"* {s.link}"
+                for s in itertools.chain(find_links_sources, index_url_sources)
+                if s is not None and s.link is not None
+            ]
+            lines = [
+                f"{len(lines)} location(s) to search "
+                f"for versions of {project_name}:"
+            ] + lines
+            logger.debug("\n".join(lines))
+
+        return CollectedSources(
+            find_links=list(find_links_sources),
+            index_urls=list(index_url_sources),
+        )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/index/package_finder.py b/utils/python-venv/Lib/site-packages/pip/_internal/index/package_finder.py
new file mode 100644
index 0000000..a2702db
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/index/package_finder.py
@@ -0,0 +1,993 @@
+"""Routines related to PyPI, indexes"""
+
+# The following comment should be removed at some point in the future.
+# mypy: strict-optional=False
+
+import functools
+import itertools
+import logging
+import re
+from typing import FrozenSet, Iterable, List, Optional, Set, Tuple, Union
+
+from pip._vendor.packaging import specifiers
+from pip._vendor.packaging.tags import Tag
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.packaging.version import _BaseVersion
+from pip._vendor.packaging.version import parse as parse_version
+
+from pip._internal.exceptions import (
+    BestVersionAlreadyInstalled,
+    DistributionNotFound,
+    InvalidWheelFilename,
+    UnsupportedWheel,
+)
+from pip._internal.index.collector import LinkCollector, parse_links
+from pip._internal.models.candidate import InstallationCandidate
+from pip._internal.models.format_control import FormatControl
+from pip._internal.models.link import Link
+from pip._internal.models.search_scope import SearchScope
+from pip._internal.models.selection_prefs import SelectionPreferences
+from pip._internal.models.target_python import TargetPython
+from pip._internal.models.wheel import Wheel
+from pip._internal.req import InstallRequirement
+from pip._internal.utils._log import getLogger
+from pip._internal.utils.filetypes import WHEEL_EXTENSION
+from pip._internal.utils.hashes import Hashes
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import build_netloc
+from pip._internal.utils.packaging import check_requires_python
+from pip._internal.utils.unpacking import SUPPORTED_EXTENSIONS
+from pip._internal.utils.urls import url_to_path
+
+__all__ = ["FormatControl", "BestCandidateResult", "PackageFinder"]
+
+
+logger = getLogger(__name__)
+
+BuildTag = Union[Tuple[()], Tuple[int, str]]
+CandidateSortingKey = Tuple[int, int, int, _BaseVersion, Optional[int], BuildTag]
+
+
+def _check_link_requires_python(
+    link: Link,
+    version_info: Tuple[int, int, int],
+    ignore_requires_python: bool = False,
+) -> bool:
+    """
+    Return whether the given Python version is compatible with a link's
+    "Requires-Python" value.
+
+    :param version_info: A 3-tuple of ints representing the Python
+        major-minor-micro version to check.
+    :param ignore_requires_python: Whether to ignore the "Requires-Python"
+        value if the given Python version isn't compatible.
+    """
+    try:
+        is_compatible = check_requires_python(
+            link.requires_python,
+            version_info=version_info,
+        )
+    except specifiers.InvalidSpecifier:
+        logger.debug(
+            "Ignoring invalid Requires-Python (%r) for link: %s",
+            link.requires_python,
+            link,
+        )
+    else:
+        if not is_compatible:
+            version = ".".join(map(str, version_info))
+            if not ignore_requires_python:
+                logger.verbose(
+                    "Link requires a different Python (%s not in: %r): %s",
+                    version,
+                    link.requires_python,
+                    link,
+                )
+                return False
+
+            logger.debug(
+                "Ignoring failed Requires-Python check (%s not in: %r) for link: %s",
+                version,
+                link.requires_python,
+                link,
+            )
+
+    return True
+
+
+class LinkEvaluator:
+
+    """
+    Responsible for evaluating links for a particular project.
+    """
+
+    _py_version_re = re.compile(r"-py([123]\.?[0-9]?)$")
+
+    # Don't include an allow_yanked default value to make sure each call
+    # site considers whether yanked releases are allowed. This also causes
+    # that decision to be made explicit in the calling code, which helps
+    # people when reading the code.
+    def __init__(
+        self,
+        project_name: str,
+        canonical_name: str,
+        formats: FrozenSet[str],
+        target_python: TargetPython,
+        allow_yanked: bool,
+        ignore_requires_python: Optional[bool] = None,
+    ) -> None:
+        """
+        :param project_name: The user supplied package name.
+        :param canonical_name: The canonical package name.
+        :param formats: The formats allowed for this package. Should be a set
+            with 'binary' or 'source' or both in it.
+        :param target_python: The target Python interpreter to use when
+            evaluating link compatibility. This is used, for example, to
+            check wheel compatibility, as well as when checking the Python
+            version, e.g. the Python version embedded in a link filename
+            (or egg fragment) and against an HTML link's optional PEP 503
+            "data-requires-python" attribute.
+        :param allow_yanked: Whether files marked as yanked (in the sense
+            of PEP 592) are permitted to be candidates for install.
+        :param ignore_requires_python: Whether to ignore incompatible
+            PEP 503 "data-requires-python" values in HTML links. Defaults
+            to False.
+        """
+        if ignore_requires_python is None:
+            ignore_requires_python = False
+
+        self._allow_yanked = allow_yanked
+        self._canonical_name = canonical_name
+        self._ignore_requires_python = ignore_requires_python
+        self._formats = formats
+        self._target_python = target_python
+
+        self.project_name = project_name
+
+    def evaluate_link(self, link: Link) -> Tuple[bool, Optional[str]]:
+        """
+        Determine whether a link is a candidate for installation.
+
+        :return: A tuple (is_candidate, result), where `result` is (1) a
+            version string if `is_candidate` is True, and (2) if
+            `is_candidate` is False, an optional string to log the reason
+            the link fails to qualify.
+        """
+        version = None
+        if link.is_yanked and not self._allow_yanked:
+            reason = link.yanked_reason or ""
+            return (False, f"yanked for reason: {reason}")
+
+        if link.egg_fragment:
+            egg_info = link.egg_fragment
+            ext = link.ext
+        else:
+            egg_info, ext = link.splitext()
+            if not ext:
+                return (False, "not a file")
+            if ext not in SUPPORTED_EXTENSIONS:
+                return (False, f"unsupported archive format: {ext}")
+            if "binary" not in self._formats and ext == WHEEL_EXTENSION:
+                reason = "No binaries permitted for {}".format(self.project_name)
+                return (False, reason)
+            if "macosx10" in link.path and ext == ".zip":
+                return (False, "macosx10 one")
+            if ext == WHEEL_EXTENSION:
+                try:
+                    wheel = Wheel(link.filename)
+                except InvalidWheelFilename:
+                    return (False, "invalid wheel filename")
+                if canonicalize_name(wheel.name) != self._canonical_name:
+                    reason = "wrong project name (not {})".format(self.project_name)
+                    return (False, reason)
+
+                supported_tags = self._target_python.get_tags()
+                if not wheel.supported(supported_tags):
+                    # Include the wheel's tags in the reason string to
+                    # simplify troubleshooting compatibility issues.
+                    file_tags = wheel.get_formatted_file_tags()
+                    reason = (
+                        "none of the wheel's tags ({}) are compatible "
+                        "(run pip debug --verbose to show compatible tags)".format(
+                            ", ".join(file_tags)
+                        )
+                    )
+                    return (False, reason)
+
+                version = wheel.version
+
+        # This should be up by the self.ok_binary check, but see issue 2700.
+        if "source" not in self._formats and ext != WHEEL_EXTENSION:
+            reason = f"No sources permitted for {self.project_name}"
+            return (False, reason)
+
+        if not version:
+            version = _extract_version_from_fragment(
+                egg_info,
+                self._canonical_name,
+            )
+        if not version:
+            reason = f"Missing project version for {self.project_name}"
+            return (False, reason)
+
+        match = self._py_version_re.search(version)
+        if match:
+            version = version[: match.start()]
+            py_version = match.group(1)
+            if py_version != self._target_python.py_version:
+                return (False, "Python version is incorrect")
+
+        supports_python = _check_link_requires_python(
+            link,
+            version_info=self._target_python.py_version_info,
+            ignore_requires_python=self._ignore_requires_python,
+        )
+        if not supports_python:
+            # Return None for the reason text to suppress calling
+            # _log_skipped_link().
+            return (False, None)
+
+        logger.debug("Found link %s, version: %s", link, version)
+
+        return (True, version)
+
+
+def filter_unallowed_hashes(
+    candidates: List[InstallationCandidate],
+    hashes: Hashes,
+    project_name: str,
+) -> List[InstallationCandidate]:
+    """
+    Filter out candidates whose hashes aren't allowed, and return a new
+    list of candidates.
+
+    If at least one candidate has an allowed hash, then all candidates with
+    either an allowed hash or no hash specified are returned.  Otherwise,
+    the given candidates are returned.
+
+    Including the candidates with no hash specified when there is a match
+    allows a warning to be logged if there is a more preferred candidate
+    with no hash specified.  Returning all candidates in the case of no
+    matches lets pip report the hash of the candidate that would otherwise
+    have been installed (e.g. permitting the user to more easily update
+    their requirements file with the desired hash).
+    """
+    if not hashes:
+        logger.debug(
+            "Given no hashes to check %s links for project %r: "
+            "discarding no candidates",
+            len(candidates),
+            project_name,
+        )
+        # Make sure we're not returning back the given value.
+        return list(candidates)
+
+    matches_or_no_digest = []
+    # Collect the non-matches for logging purposes.
+    non_matches = []
+    match_count = 0
+    for candidate in candidates:
+        link = candidate.link
+        if not link.has_hash:
+            pass
+        elif link.is_hash_allowed(hashes=hashes):
+            match_count += 1
+        else:
+            non_matches.append(candidate)
+            continue
+
+        matches_or_no_digest.append(candidate)
+
+    if match_count:
+        filtered = matches_or_no_digest
+    else:
+        # Make sure we're not returning back the given value.
+        filtered = list(candidates)
+
+    if len(filtered) == len(candidates):
+        discard_message = "discarding no candidates"
+    else:
+        discard_message = "discarding {} non-matches:\n  {}".format(
+            len(non_matches),
+            "\n  ".join(str(candidate.link) for candidate in non_matches),
+        )
+
+    logger.debug(
+        "Checked %s links for project %r against %s hashes "
+        "(%s matches, %s no digest): %s",
+        len(candidates),
+        project_name,
+        hashes.digest_count,
+        match_count,
+        len(matches_or_no_digest) - match_count,
+        discard_message,
+    )
+
+    return filtered
+
+
+class CandidatePreferences:
+
+    """
+    Encapsulates some of the preferences for filtering and sorting
+    InstallationCandidate objects.
+    """
+
+    def __init__(
+        self,
+        prefer_binary: bool = False,
+        allow_all_prereleases: bool = False,
+    ) -> None:
+        """
+        :param allow_all_prereleases: Whether to allow all pre-releases.
+        """
+        self.allow_all_prereleases = allow_all_prereleases
+        self.prefer_binary = prefer_binary
+
+
+class BestCandidateResult:
+    """A collection of candidates, returned by `PackageFinder.find_best_candidate`.
+
+    This class is only intended to be instantiated by CandidateEvaluator's
+    `compute_best_candidate()` method.
+    """
+
+    def __init__(
+        self,
+        candidates: List[InstallationCandidate],
+        applicable_candidates: List[InstallationCandidate],
+        best_candidate: Optional[InstallationCandidate],
+    ) -> None:
+        """
+        :param candidates: A sequence of all available candidates found.
+        :param applicable_candidates: The applicable candidates.
+        :param best_candidate: The most preferred candidate found, or None
+            if no applicable candidates were found.
+        """
+        assert set(applicable_candidates) <= set(candidates)
+
+        if best_candidate is None:
+            assert not applicable_candidates
+        else:
+            assert best_candidate in applicable_candidates
+
+        self._applicable_candidates = applicable_candidates
+        self._candidates = candidates
+
+        self.best_candidate = best_candidate
+
+    def iter_all(self) -> Iterable[InstallationCandidate]:
+        """Iterate through all candidates."""
+        return iter(self._candidates)
+
+    def iter_applicable(self) -> Iterable[InstallationCandidate]:
+        """Iterate through the applicable candidates."""
+        return iter(self._applicable_candidates)
+
+
+class CandidateEvaluator:
+
+    """
+    Responsible for filtering and sorting candidates for installation based
+    on what tags are valid.
+    """
+
+    @classmethod
+    def create(
+        cls,
+        project_name: str,
+        target_python: Optional[TargetPython] = None,
+        prefer_binary: bool = False,
+        allow_all_prereleases: bool = False,
+        specifier: Optional[specifiers.BaseSpecifier] = None,
+        hashes: Optional[Hashes] = None,
+    ) -> "CandidateEvaluator":
+        """Create a CandidateEvaluator object.
+
+        :param target_python: The target Python interpreter to use when
+            checking compatibility. If None (the default), a TargetPython
+            object will be constructed from the running Python.
+        :param specifier: An optional object implementing `filter`
+            (e.g. `packaging.specifiers.SpecifierSet`) to filter applicable
+            versions.
+        :param hashes: An optional collection of allowed hashes.
+        """
+        if target_python is None:
+            target_python = TargetPython()
+        if specifier is None:
+            specifier = specifiers.SpecifierSet()
+
+        supported_tags = target_python.get_tags()
+
+        return cls(
+            project_name=project_name,
+            supported_tags=supported_tags,
+            specifier=specifier,
+            prefer_binary=prefer_binary,
+            allow_all_prereleases=allow_all_prereleases,
+            hashes=hashes,
+        )
+
+    def __init__(
+        self,
+        project_name: str,
+        supported_tags: List[Tag],
+        specifier: specifiers.BaseSpecifier,
+        prefer_binary: bool = False,
+        allow_all_prereleases: bool = False,
+        hashes: Optional[Hashes] = None,
+    ) -> None:
+        """
+        :param supported_tags: The PEP 425 tags supported by the target
+            Python in order of preference (most preferred first).
+        """
+        self._allow_all_prereleases = allow_all_prereleases
+        self._hashes = hashes
+        self._prefer_binary = prefer_binary
+        self._project_name = project_name
+        self._specifier = specifier
+        self._supported_tags = supported_tags
+        # Since the index of the tag in the _supported_tags list is used
+        # as a priority, precompute a map from tag to index/priority to be
+        # used in wheel.find_most_preferred_tag.
+        self._wheel_tag_preferences = {
+            tag: idx for idx, tag in enumerate(supported_tags)
+        }
+
+    def get_applicable_candidates(
+        self,
+        candidates: List[InstallationCandidate],
+    ) -> List[InstallationCandidate]:
+        """
+        Return the applicable candidates from a list of candidates.
+        """
+        # Using None infers from the specifier instead.
+        allow_prereleases = self._allow_all_prereleases or None
+        specifier = self._specifier
+        versions = {
+            str(v)
+            for v in specifier.filter(
+                # We turn the version object into a str here because otherwise
+                # when we're debundled but setuptools isn't, Python will see
+                # packaging.version.Version and
+                # pkg_resources._vendor.packaging.version.Version as different
+                # types. This way we'll use a str as a common data interchange
+                # format. If we stop using the pkg_resources provided specifier
+                # and start using our own, we can drop the cast to str().
+                (str(c.version) for c in candidates),
+                prereleases=allow_prereleases,
+            )
+        }
+
+        # Again, converting version to str to deal with debundling.
+        applicable_candidates = [c for c in candidates if str(c.version) in versions]
+
+        filtered_applicable_candidates = filter_unallowed_hashes(
+            candidates=applicable_candidates,
+            hashes=self._hashes,
+            project_name=self._project_name,
+        )
+
+        return sorted(filtered_applicable_candidates, key=self._sort_key)
+
+    def _sort_key(self, candidate: InstallationCandidate) -> CandidateSortingKey:
+        """
+        Function to pass as the `key` argument to a call to sorted() to sort
+        InstallationCandidates by preference.
+
+        Returns a tuple such that tuples sorting as greater using Python's
+        default comparison operator are more preferred.
+
+        The preference is as follows:
+
+        First and foremost, candidates with allowed (matching) hashes are
+        always preferred over candidates without matching hashes. This is
+        because e.g. if the only candidate with an allowed hash is yanked,
+        we still want to use that candidate.
+
+        Second, excepting hash considerations, candidates that have been
+        yanked (in the sense of PEP 592) are always less preferred than
+        candidates that haven't been yanked. Then:
+
+        If not finding wheels, they are sorted by version only.
+        If finding wheels, then the sort order is by version, then:
+          1. existing installs
+          2. wheels ordered via Wheel.support_index_min(self._supported_tags)
+          3. source archives
+        If prefer_binary was set, then all wheels are sorted above sources.
+
+        Note: it was considered to embed this logic into the Link
+              comparison operators, but then different sdist links
+              with the same version, would have to be considered equal
+        """
+        valid_tags = self._supported_tags
+        support_num = len(valid_tags)
+        build_tag: BuildTag = ()
+        binary_preference = 0
+        link = candidate.link
+        if link.is_wheel:
+            # can raise InvalidWheelFilename
+            wheel = Wheel(link.filename)
+            try:
+                pri = -(
+                    wheel.find_most_preferred_tag(
+                        valid_tags, self._wheel_tag_preferences
+                    )
+                )
+            except ValueError:
+                raise UnsupportedWheel(
+                    "{} is not a supported wheel for this platform. It "
+                    "can't be sorted.".format(wheel.filename)
+                )
+            if self._prefer_binary:
+                binary_preference = 1
+            if wheel.build_tag is not None:
+                match = re.match(r"^(\d+)(.*)$", wheel.build_tag)
+                build_tag_groups = match.groups()
+                build_tag = (int(build_tag_groups[0]), build_tag_groups[1])
+        else:  # sdist
+            pri = -(support_num)
+        has_allowed_hash = int(link.is_hash_allowed(self._hashes))
+        yank_value = -1 * int(link.is_yanked)  # -1 for yanked.
+        return (
+            has_allowed_hash,
+            yank_value,
+            binary_preference,
+            candidate.version,
+            pri,
+            build_tag,
+        )
+
+    def sort_best_candidate(
+        self,
+        candidates: List[InstallationCandidate],
+    ) -> Optional[InstallationCandidate]:
+        """
+        Return the best candidate per the instance's sort order, or None if
+        no candidate is acceptable.
+        """
+        if not candidates:
+            return None
+        best_candidate = max(candidates, key=self._sort_key)
+        return best_candidate
+
+    def compute_best_candidate(
+        self,
+        candidates: List[InstallationCandidate],
+    ) -> BestCandidateResult:
+        """
+        Compute and return a `BestCandidateResult` instance.
+        """
+        applicable_candidates = self.get_applicable_candidates(candidates)
+
+        best_candidate = self.sort_best_candidate(applicable_candidates)
+
+        return BestCandidateResult(
+            candidates,
+            applicable_candidates=applicable_candidates,
+            best_candidate=best_candidate,
+        )
+
+
+class PackageFinder:
+    """This finds packages.
+
+    This is meant to match easy_install's technique for looking for
+    packages, by reading pages and looking for appropriate links.
+    """
+
+    def __init__(
+        self,
+        link_collector: LinkCollector,
+        target_python: TargetPython,
+        allow_yanked: bool,
+        format_control: Optional[FormatControl] = None,
+        candidate_prefs: Optional[CandidatePreferences] = None,
+        ignore_requires_python: Optional[bool] = None,
+    ) -> None:
+        """
+        This constructor is primarily meant to be used by the create() class
+        method and from tests.
+
+        :param format_control: A FormatControl object, used to control
+            the selection of source packages / binary packages when consulting
+            the index and links.
+        :param candidate_prefs: Options to use when creating a
+            CandidateEvaluator object.
+        """
+        if candidate_prefs is None:
+            candidate_prefs = CandidatePreferences()
+
+        format_control = format_control or FormatControl(set(), set())
+
+        self._allow_yanked = allow_yanked
+        self._candidate_prefs = candidate_prefs
+        self._ignore_requires_python = ignore_requires_python
+        self._link_collector = link_collector
+        self._target_python = target_python
+
+        self.format_control = format_control
+
+        # These are boring links that have already been logged somehow.
+        self._logged_links: Set[Link] = set()
+
+    # Don't include an allow_yanked default value to make sure each call
+    # site considers whether yanked releases are allowed. This also causes
+    # that decision to be made explicit in the calling code, which helps
+    # people when reading the code.
+    @classmethod
+    def create(
+        cls,
+        link_collector: LinkCollector,
+        selection_prefs: SelectionPreferences,
+        target_python: Optional[TargetPython] = None,
+    ) -> "PackageFinder":
+        """Create a PackageFinder.
+
+        :param selection_prefs: The candidate selection preferences, as a
+            SelectionPreferences object.
+        :param target_python: The target Python interpreter to use when
+            checking compatibility. If None (the default), a TargetPython
+            object will be constructed from the running Python.
+        """
+        if target_python is None:
+            target_python = TargetPython()
+
+        candidate_prefs = CandidatePreferences(
+            prefer_binary=selection_prefs.prefer_binary,
+            allow_all_prereleases=selection_prefs.allow_all_prereleases,
+        )
+
+        return cls(
+            candidate_prefs=candidate_prefs,
+            link_collector=link_collector,
+            target_python=target_python,
+            allow_yanked=selection_prefs.allow_yanked,
+            format_control=selection_prefs.format_control,
+            ignore_requires_python=selection_prefs.ignore_requires_python,
+        )
+
+    @property
+    def target_python(self) -> TargetPython:
+        return self._target_python
+
+    @property
+    def search_scope(self) -> SearchScope:
+        return self._link_collector.search_scope
+
+    @search_scope.setter
+    def search_scope(self, search_scope: SearchScope) -> None:
+        self._link_collector.search_scope = search_scope
+
+    @property
+    def find_links(self) -> List[str]:
+        return self._link_collector.find_links
+
+    @property
+    def index_urls(self) -> List[str]:
+        return self.search_scope.index_urls
+
+    @property
+    def trusted_hosts(self) -> Iterable[str]:
+        for host_port in self._link_collector.session.pip_trusted_origins:
+            yield build_netloc(*host_port)
+
+    @property
+    def allow_all_prereleases(self) -> bool:
+        return self._candidate_prefs.allow_all_prereleases
+
+    def set_allow_all_prereleases(self) -> None:
+        self._candidate_prefs.allow_all_prereleases = True
+
+    @property
+    def prefer_binary(self) -> bool:
+        return self._candidate_prefs.prefer_binary
+
+    def set_prefer_binary(self) -> None:
+        self._candidate_prefs.prefer_binary = True
+
+    def make_link_evaluator(self, project_name: str) -> LinkEvaluator:
+        canonical_name = canonicalize_name(project_name)
+        formats = self.format_control.get_allowed_formats(canonical_name)
+
+        return LinkEvaluator(
+            project_name=project_name,
+            canonical_name=canonical_name,
+            formats=formats,
+            target_python=self._target_python,
+            allow_yanked=self._allow_yanked,
+            ignore_requires_python=self._ignore_requires_python,
+        )
+
+    def _sort_links(self, links: Iterable[Link]) -> List[Link]:
+        """
+        Returns elements of links in order, non-egg links first, egg links
+        second, while eliminating duplicates
+        """
+        eggs, no_eggs = [], []
+        seen: Set[Link] = set()
+        for link in links:
+            if link not in seen:
+                seen.add(link)
+                if link.egg_fragment:
+                    eggs.append(link)
+                else:
+                    no_eggs.append(link)
+        return no_eggs + eggs
+
+    def _log_skipped_link(self, link: Link, reason: str) -> None:
+        if link not in self._logged_links:
+            # Put the link at the end so the reason is more visible and because
+            # the link string is usually very long.
+            logger.debug("Skipping link: %s: %s", reason, link)
+            self._logged_links.add(link)
+
+    def get_install_candidate(
+        self, link_evaluator: LinkEvaluator, link: Link
+    ) -> Optional[InstallationCandidate]:
+        """
+        If the link is a candidate for install, convert it to an
+        InstallationCandidate and return it. Otherwise, return None.
+        """
+        is_candidate, result = link_evaluator.evaluate_link(link)
+        if not is_candidate:
+            if result:
+                self._log_skipped_link(link, reason=result)
+            return None
+
+        return InstallationCandidate(
+            name=link_evaluator.project_name,
+            link=link,
+            version=result,
+        )
+
+    def evaluate_links(
+        self, link_evaluator: LinkEvaluator, links: Iterable[Link]
+    ) -> List[InstallationCandidate]:
+        """
+        Convert links that are candidates to InstallationCandidate objects.
+        """
+        candidates = []
+        for link in self._sort_links(links):
+            candidate = self.get_install_candidate(link_evaluator, link)
+            if candidate is not None:
+                candidates.append(candidate)
+
+        return candidates
+
+    def process_project_url(
+        self, project_url: Link, link_evaluator: LinkEvaluator
+    ) -> List[InstallationCandidate]:
+        logger.debug(
+            "Fetching project page and analyzing links: %s",
+            project_url,
+        )
+        html_page = self._link_collector.fetch_page(project_url)
+        if html_page is None:
+            return []
+
+        page_links = list(parse_links(html_page))
+
+        with indent_log():
+            package_links = self.evaluate_links(
+                link_evaluator,
+                links=page_links,
+            )
+
+        return package_links
+
+    @functools.lru_cache(maxsize=None)
+    def find_all_candidates(self, project_name: str) -> List[InstallationCandidate]:
+        """Find all available InstallationCandidate for project_name
+
+        This checks index_urls and find_links.
+        All versions found are returned as an InstallationCandidate list.
+
+        See LinkEvaluator.evaluate_link() for details on which files
+        are accepted.
+        """
+        link_evaluator = self.make_link_evaluator(project_name)
+
+        collected_sources = self._link_collector.collect_sources(
+            project_name=project_name,
+            candidates_from_page=functools.partial(
+                self.process_project_url,
+                link_evaluator=link_evaluator,
+            ),
+        )
+
+        page_candidates_it = itertools.chain.from_iterable(
+            source.page_candidates()
+            for sources in collected_sources
+            for source in sources
+            if source is not None
+        )
+        page_candidates = list(page_candidates_it)
+
+        file_links_it = itertools.chain.from_iterable(
+            source.file_links()
+            for sources in collected_sources
+            for source in sources
+            if source is not None
+        )
+        file_candidates = self.evaluate_links(
+            link_evaluator,
+            sorted(file_links_it, reverse=True),
+        )
+
+        if logger.isEnabledFor(logging.DEBUG) and file_candidates:
+            paths = [url_to_path(c.link.url) for c in file_candidates]
+            logger.debug("Local files found: %s", ", ".join(paths))
+
+        # This is an intentional priority ordering
+        return file_candidates + page_candidates
+
+    def make_candidate_evaluator(
+        self,
+        project_name: str,
+        specifier: Optional[specifiers.BaseSpecifier] = None,
+        hashes: Optional[Hashes] = None,
+    ) -> CandidateEvaluator:
+        """Create a CandidateEvaluator object to use."""
+        candidate_prefs = self._candidate_prefs
+        return CandidateEvaluator.create(
+            project_name=project_name,
+            target_python=self._target_python,
+            prefer_binary=candidate_prefs.prefer_binary,
+            allow_all_prereleases=candidate_prefs.allow_all_prereleases,
+            specifier=specifier,
+            hashes=hashes,
+        )
+
+    @functools.lru_cache(maxsize=None)
+    def find_best_candidate(
+        self,
+        project_name: str,
+        specifier: Optional[specifiers.BaseSpecifier] = None,
+        hashes: Optional[Hashes] = None,
+    ) -> BestCandidateResult:
+        """Find matches for the given project and specifier.
+
+        :param specifier: An optional object implementing `filter`
+            (e.g. `packaging.specifiers.SpecifierSet`) to filter applicable
+            versions.
+
+        :return: A `BestCandidateResult` instance.
+        """
+        candidates = self.find_all_candidates(project_name)
+        candidate_evaluator = self.make_candidate_evaluator(
+            project_name=project_name,
+            specifier=specifier,
+            hashes=hashes,
+        )
+        return candidate_evaluator.compute_best_candidate(candidates)
+
+    def find_requirement(
+        self, req: InstallRequirement, upgrade: bool
+    ) -> Optional[InstallationCandidate]:
+        """Try to find a Link matching req
+
+        Expects req, an InstallRequirement and upgrade, a boolean
+        Returns a InstallationCandidate if found,
+        Raises DistributionNotFound or BestVersionAlreadyInstalled otherwise
+        """
+        hashes = req.hashes(trust_internet=False)
+        best_candidate_result = self.find_best_candidate(
+            req.name,
+            specifier=req.specifier,
+            hashes=hashes,
+        )
+        best_candidate = best_candidate_result.best_candidate
+
+        installed_version: Optional[_BaseVersion] = None
+        if req.satisfied_by is not None:
+            installed_version = parse_version(req.satisfied_by.version)
+
+        def _format_versions(cand_iter: Iterable[InstallationCandidate]) -> str:
+            # This repeated parse_version and str() conversion is needed to
+            # handle different vendoring sources from pip and pkg_resources.
+            # If we stop using the pkg_resources provided specifier and start
+            # using our own, we can drop the cast to str().
+            return (
+                ", ".join(
+                    sorted(
+                        {str(c.version) for c in cand_iter},
+                        key=parse_version,
+                    )
+                )
+                or "none"
+            )
+
+        if installed_version is None and best_candidate is None:
+            logger.critical(
+                "Could not find a version that satisfies the requirement %s "
+                "(from versions: %s)",
+                req,
+                _format_versions(best_candidate_result.iter_all()),
+            )
+
+            raise DistributionNotFound(
+                "No matching distribution found for {}".format(req)
+            )
+
+        best_installed = False
+        if installed_version and (
+            best_candidate is None or best_candidate.version <= installed_version
+        ):
+            best_installed = True
+
+        if not upgrade and installed_version is not None:
+            if best_installed:
+                logger.debug(
+                    "Existing installed version (%s) is most up-to-date and "
+                    "satisfies requirement",
+                    installed_version,
+                )
+            else:
+                logger.debug(
+                    "Existing installed version (%s) satisfies requirement "
+                    "(most up-to-date version is %s)",
+                    installed_version,
+                    best_candidate.version,
+                )
+            return None
+
+        if best_installed:
+            # We have an existing version, and its the best version
+            logger.debug(
+                "Installed version (%s) is most up-to-date (past versions: %s)",
+                installed_version,
+                _format_versions(best_candidate_result.iter_applicable()),
+            )
+            raise BestVersionAlreadyInstalled
+
+        logger.debug(
+            "Using version %s (newest of versions: %s)",
+            best_candidate.version,
+            _format_versions(best_candidate_result.iter_applicable()),
+        )
+        return best_candidate
+
+
+def _find_name_version_sep(fragment: str, canonical_name: str) -> int:
+    """Find the separator's index based on the package's canonical name.
+
+    :param fragment: A + filename "fragment" (stem) or
+        egg fragment.
+    :param canonical_name: The package's canonical name.
+
+    This function is needed since the canonicalized name does not necessarily
+    have the same length as the egg info's name part. An example::
+
+    >>> fragment = 'foo__bar-1.0'
+    >>> canonical_name = 'foo-bar'
+    >>> _find_name_version_sep(fragment, canonical_name)
+    8
+    """
+    # Project name and version must be separated by one single dash. Find all
+    # occurrences of dashes; if the string in front of it matches the canonical
+    # name, this is the one separating the name and version parts.
+    for i, c in enumerate(fragment):
+        if c != "-":
+            continue
+        if canonicalize_name(fragment[:i]) == canonical_name:
+            return i
+    raise ValueError(f"{fragment} does not match {canonical_name}")
+
+
+def _extract_version_from_fragment(fragment: str, canonical_name: str) -> Optional[str]:
+    """Parse the version string from a + filename
+    "fragment" (stem) or egg fragment.
+
+    :param fragment: The string to parse. E.g. foo-2.1
+    :param canonical_name: The canonicalized name of the package this
+        belongs to.
+    """
+    try:
+        version_start = _find_name_version_sep(fragment, canonical_name) + 1
+    except ValueError:
+        return None
+    version = fragment[version_start:]
+    if not version:
+        return None
+    return version
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/index/sources.py b/utils/python-venv/Lib/site-packages/pip/_internal/index/sources.py
new file mode 100644
index 0000000..eec3f12
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/index/sources.py
@@ -0,0 +1,224 @@
+import logging
+import mimetypes
+import os
+import pathlib
+from typing import Callable, Iterable, Optional, Tuple
+
+from pip._internal.models.candidate import InstallationCandidate
+from pip._internal.models.link import Link
+from pip._internal.utils.urls import path_to_url, url_to_path
+from pip._internal.vcs import is_url
+
+logger = logging.getLogger(__name__)
+
+FoundCandidates = Iterable[InstallationCandidate]
+FoundLinks = Iterable[Link]
+CandidatesFromPage = Callable[[Link], Iterable[InstallationCandidate]]
+PageValidator = Callable[[Link], bool]
+
+
+class LinkSource:
+    @property
+    def link(self) -> Optional[Link]:
+        """Returns the underlying link, if there's one."""
+        raise NotImplementedError()
+
+    def page_candidates(self) -> FoundCandidates:
+        """Candidates found by parsing an archive listing HTML file."""
+        raise NotImplementedError()
+
+    def file_links(self) -> FoundLinks:
+        """Links found by specifying archives directly."""
+        raise NotImplementedError()
+
+
+def _is_html_file(file_url: str) -> bool:
+    return mimetypes.guess_type(file_url, strict=False)[0] == "text/html"
+
+
+class _FlatDirectorySource(LinkSource):
+    """Link source specified by ``--find-links=``.
+
+    This looks the content of the directory, and returns:
+
+    * ``page_candidates``: Links listed on each HTML file in the directory.
+    * ``file_candidates``: Archives in the directory.
+    """
+
+    def __init__(
+        self,
+        candidates_from_page: CandidatesFromPage,
+        path: str,
+    ) -> None:
+        self._candidates_from_page = candidates_from_page
+        self._path = pathlib.Path(os.path.realpath(path))
+
+    @property
+    def link(self) -> Optional[Link]:
+        return None
+
+    def page_candidates(self) -> FoundCandidates:
+        for path in self._path.iterdir():
+            url = path_to_url(str(path))
+            if not _is_html_file(url):
+                continue
+            yield from self._candidates_from_page(Link(url))
+
+    def file_links(self) -> FoundLinks:
+        for path in self._path.iterdir():
+            url = path_to_url(str(path))
+            if _is_html_file(url):
+                continue
+            yield Link(url)
+
+
+class _LocalFileSource(LinkSource):
+    """``--find-links=`` or ``--[extra-]index-url=``.
+
+    If a URL is supplied, it must be a ``file:`` URL. If a path is supplied to
+    the option, it is converted to a URL first. This returns:
+
+    * ``page_candidates``: Links listed on an HTML file.
+    * ``file_candidates``: The non-HTML file.
+    """
+
+    def __init__(
+        self,
+        candidates_from_page: CandidatesFromPage,
+        link: Link,
+    ) -> None:
+        self._candidates_from_page = candidates_from_page
+        self._link = link
+
+    @property
+    def link(self) -> Optional[Link]:
+        return self._link
+
+    def page_candidates(self) -> FoundCandidates:
+        if not _is_html_file(self._link.url):
+            return
+        yield from self._candidates_from_page(self._link)
+
+    def file_links(self) -> FoundLinks:
+        if _is_html_file(self._link.url):
+            return
+        yield self._link
+
+
+class _RemoteFileSource(LinkSource):
+    """``--find-links=`` or ``--[extra-]index-url=``.
+
+    This returns:
+
+    * ``page_candidates``: Links listed on an HTML file.
+    * ``file_candidates``: The non-HTML file.
+    """
+
+    def __init__(
+        self,
+        candidates_from_page: CandidatesFromPage,
+        page_validator: PageValidator,
+        link: Link,
+    ) -> None:
+        self._candidates_from_page = candidates_from_page
+        self._page_validator = page_validator
+        self._link = link
+
+    @property
+    def link(self) -> Optional[Link]:
+        return self._link
+
+    def page_candidates(self) -> FoundCandidates:
+        if not self._page_validator(self._link):
+            return
+        yield from self._candidates_from_page(self._link)
+
+    def file_links(self) -> FoundLinks:
+        yield self._link
+
+
+class _IndexDirectorySource(LinkSource):
+    """``--[extra-]index-url=``.
+
+    This is treated like a remote URL; ``candidates_from_page`` contains logic
+    for this by appending ``index.html`` to the link.
+    """
+
+    def __init__(
+        self,
+        candidates_from_page: CandidatesFromPage,
+        link: Link,
+    ) -> None:
+        self._candidates_from_page = candidates_from_page
+        self._link = link
+
+    @property
+    def link(self) -> Optional[Link]:
+        return self._link
+
+    def page_candidates(self) -> FoundCandidates:
+        yield from self._candidates_from_page(self._link)
+
+    def file_links(self) -> FoundLinks:
+        return ()
+
+
+def build_source(
+    location: str,
+    *,
+    candidates_from_page: CandidatesFromPage,
+    page_validator: PageValidator,
+    expand_dir: bool,
+    cache_link_parsing: bool,
+) -> Tuple[Optional[str], Optional[LinkSource]]:
+
+    path: Optional[str] = None
+    url: Optional[str] = None
+    if os.path.exists(location):  # Is a local path.
+        url = path_to_url(location)
+        path = location
+    elif location.startswith("file:"):  # A file: URL.
+        url = location
+        path = url_to_path(location)
+    elif is_url(location):
+        url = location
+
+    if url is None:
+        msg = (
+            "Location '%s' is ignored: "
+            "it is either a non-existing path or lacks a specific scheme."
+        )
+        logger.warning(msg, location)
+        return (None, None)
+
+    if path is None:
+        source: LinkSource = _RemoteFileSource(
+            candidates_from_page=candidates_from_page,
+            page_validator=page_validator,
+            link=Link(url, cache_link_parsing=cache_link_parsing),
+        )
+        return (url, source)
+
+    if os.path.isdir(path):
+        if expand_dir:
+            source = _FlatDirectorySource(
+                candidates_from_page=candidates_from_page,
+                path=path,
+            )
+        else:
+            source = _IndexDirectorySource(
+                candidates_from_page=candidates_from_page,
+                link=Link(url, cache_link_parsing=cache_link_parsing),
+            )
+        return (url, source)
+    elif os.path.isfile(path):
+        source = _LocalFileSource(
+            candidates_from_page=candidates_from_page,
+            link=Link(url, cache_link_parsing=cache_link_parsing),
+        )
+        return (url, source)
+    logger.warning(
+        "Location '%s' is ignored: it is neither a file nor a directory.",
+        location,
+    )
+    return (url, None)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/locations/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/locations/__init__.py
new file mode 100644
index 0000000..dba182d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/locations/__init__.py
@@ -0,0 +1,446 @@
+import functools
+import logging
+import os
+import pathlib
+import sys
+import sysconfig
+from typing import Any, Dict, Iterator, List, Optional, Tuple
+
+from pip._internal.models.scheme import SCHEME_KEYS, Scheme
+from pip._internal.utils.compat import WINDOWS
+from pip._internal.utils.deprecation import deprecated
+from pip._internal.utils.virtualenv import running_under_virtualenv
+
+from . import _distutils, _sysconfig
+from .base import (
+    USER_CACHE_DIR,
+    get_major_minor_version,
+    get_src_prefix,
+    is_osx_framework,
+    site_packages,
+    user_site,
+)
+
+__all__ = [
+    "USER_CACHE_DIR",
+    "get_bin_prefix",
+    "get_bin_user",
+    "get_major_minor_version",
+    "get_platlib",
+    "get_prefixed_libs",
+    "get_purelib",
+    "get_scheme",
+    "get_src_prefix",
+    "site_packages",
+    "user_site",
+]
+
+
+logger = logging.getLogger(__name__)
+
+if os.environ.get("_PIP_LOCATIONS_NO_WARN_ON_MISMATCH"):
+    _MISMATCH_LEVEL = logging.DEBUG
+else:
+    _MISMATCH_LEVEL = logging.WARNING
+
+_PLATLIBDIR: str = getattr(sys, "platlibdir", "lib")
+
+_USE_SYSCONFIG = sys.version_info >= (3, 10)
+
+
+def _looks_like_bpo_44860() -> bool:
+    """The resolution to bpo-44860 will change this incorrect platlib.
+
+    See .
+    """
+    from distutils.command.install import INSTALL_SCHEMES  # type: ignore
+
+    try:
+        unix_user_platlib = INSTALL_SCHEMES["unix_user"]["platlib"]
+    except KeyError:
+        return False
+    return unix_user_platlib == "$usersite"
+
+
+def _looks_like_red_hat_patched_platlib_purelib(scheme: Dict[str, str]) -> bool:
+    platlib = scheme["platlib"]
+    if "/$platlibdir/" in platlib and hasattr(sys, "platlibdir"):
+        platlib = platlib.replace("/$platlibdir/", f"/{sys.platlibdir}/")
+    if "/lib64/" not in platlib:
+        return False
+    unpatched = platlib.replace("/lib64/", "/lib/")
+    return unpatched.replace("$platbase/", "$base/") == scheme["purelib"]
+
+
+@functools.lru_cache(maxsize=None)
+def _looks_like_red_hat_lib() -> bool:
+    """Red Hat patches platlib in unix_prefix and unix_home, but not purelib.
+
+    This is the only way I can see to tell a Red Hat-patched Python.
+    """
+    from distutils.command.install import INSTALL_SCHEMES  # type: ignore
+
+    return all(
+        k in INSTALL_SCHEMES
+        and _looks_like_red_hat_patched_platlib_purelib(INSTALL_SCHEMES[k])
+        for k in ("unix_prefix", "unix_home")
+    )
+
+
+@functools.lru_cache(maxsize=None)
+def _looks_like_debian_scheme() -> bool:
+    """Debian adds two additional schemes."""
+    from distutils.command.install import INSTALL_SCHEMES  # type: ignore
+
+    return "deb_system" in INSTALL_SCHEMES and "unix_local" in INSTALL_SCHEMES
+
+
+@functools.lru_cache(maxsize=None)
+def _looks_like_red_hat_scheme() -> bool:
+    """Red Hat patches ``sys.prefix`` and ``sys.exec_prefix``.
+
+    Red Hat's ``00251-change-user-install-location.patch`` changes the install
+    command's ``prefix`` and ``exec_prefix`` to append ``"/local"``. This is
+    (fortunately?) done quite unconditionally, so we create a default command
+    object without any configuration to detect this.
+    """
+    from distutils.command.install import install
+    from distutils.dist import Distribution
+
+    cmd: Any = install(Distribution())
+    cmd.finalize_options()
+    return (
+        cmd.exec_prefix == f"{os.path.normpath(sys.exec_prefix)}/local"
+        and cmd.prefix == f"{os.path.normpath(sys.prefix)}/local"
+    )
+
+
+@functools.lru_cache(maxsize=None)
+def _looks_like_msys2_mingw_scheme() -> bool:
+    """MSYS2 patches distutils and sysconfig to use a UNIX-like scheme.
+
+    However, MSYS2 incorrectly patches sysconfig ``nt`` scheme. The fix is
+    likely going to be included in their 3.10 release, so we ignore the warning.
+    See msys2/MINGW-packages#9319.
+
+    MSYS2 MINGW's patch uses lowercase ``"lib"`` instead of the usual uppercase,
+    and is missing the final ``"site-packages"``.
+    """
+    paths = sysconfig.get_paths("nt", expand=False)
+    return all(
+        "Lib" not in p and "lib" in p and not p.endswith("site-packages")
+        for p in (paths[key] for key in ("platlib", "purelib"))
+    )
+
+
+def _fix_abiflags(parts: Tuple[str]) -> Iterator[str]:
+    ldversion = sysconfig.get_config_var("LDVERSION")
+    abiflags: str = getattr(sys, "abiflags", None)
+
+    # LDVERSION does not end with sys.abiflags. Just return the path unchanged.
+    if not ldversion or not abiflags or not ldversion.endswith(abiflags):
+        yield from parts
+        return
+
+    # Strip sys.abiflags from LDVERSION-based path components.
+    for part in parts:
+        if part.endswith(ldversion):
+            part = part[: (0 - len(abiflags))]
+        yield part
+
+
+@functools.lru_cache(maxsize=None)
+def _warn_mismatched(old: pathlib.Path, new: pathlib.Path, *, key: str) -> None:
+    issue_url = "https://github.com/pypa/pip/issues/10151"
+    message = (
+        "Value for %s does not match. Please report this to <%s>"
+        "\ndistutils: %s"
+        "\nsysconfig: %s"
+    )
+    logger.log(_MISMATCH_LEVEL, message, key, issue_url, old, new)
+
+
+def _warn_if_mismatch(old: pathlib.Path, new: pathlib.Path, *, key: str) -> bool:
+    if old == new:
+        return False
+    _warn_mismatched(old, new, key=key)
+    return True
+
+
+@functools.lru_cache(maxsize=None)
+def _log_context(
+    *,
+    user: bool = False,
+    home: Optional[str] = None,
+    root: Optional[str] = None,
+    prefix: Optional[str] = None,
+) -> None:
+    parts = [
+        "Additional context:",
+        "user = %r",
+        "home = %r",
+        "root = %r",
+        "prefix = %r",
+    ]
+
+    logger.log(_MISMATCH_LEVEL, "\n".join(parts), user, home, root, prefix)
+
+
+def get_scheme(
+    dist_name: str,
+    user: bool = False,
+    home: Optional[str] = None,
+    root: Optional[str] = None,
+    isolated: bool = False,
+    prefix: Optional[str] = None,
+) -> Scheme:
+    new = _sysconfig.get_scheme(
+        dist_name,
+        user=user,
+        home=home,
+        root=root,
+        isolated=isolated,
+        prefix=prefix,
+    )
+    if _USE_SYSCONFIG:
+        return new
+
+    old = _distutils.get_scheme(
+        dist_name,
+        user=user,
+        home=home,
+        root=root,
+        isolated=isolated,
+        prefix=prefix,
+    )
+
+    warning_contexts = []
+    for k in SCHEME_KEYS:
+        old_v = pathlib.Path(getattr(old, k))
+        new_v = pathlib.Path(getattr(new, k))
+
+        if old_v == new_v:
+            continue
+
+        # distutils incorrectly put PyPy packages under ``site-packages/python``
+        # in the ``posix_home`` scheme, but PyPy devs said they expect the
+        # directory name to be ``pypy`` instead. So we treat this as a bug fix
+        # and not warn about it. See bpo-43307 and python/cpython#24628.
+        skip_pypy_special_case = (
+            sys.implementation.name == "pypy"
+            and home is not None
+            and k in ("platlib", "purelib")
+            and old_v.parent == new_v.parent
+            and old_v.name.startswith("python")
+            and new_v.name.startswith("pypy")
+        )
+        if skip_pypy_special_case:
+            continue
+
+        # sysconfig's ``osx_framework_user`` does not include ``pythonX.Y`` in
+        # the ``include`` value, but distutils's ``headers`` does. We'll let
+        # CPython decide whether this is a bug or feature. See bpo-43948.
+        skip_osx_framework_user_special_case = (
+            user
+            and is_osx_framework()
+            and k == "headers"
+            and old_v.parent.parent == new_v.parent
+            and old_v.parent.name.startswith("python")
+        )
+        if skip_osx_framework_user_special_case:
+            continue
+
+        # On Red Hat and derived Linux distributions, distutils is patched to
+        # use "lib64" instead of "lib" for platlib.
+        if k == "platlib" and _looks_like_red_hat_lib():
+            continue
+
+        # On Python 3.9+, sysconfig's posix_user scheme sets platlib against
+        # sys.platlibdir, but distutils's unix_user incorrectly coninutes
+        # using the same $usersite for both platlib and purelib. This creates a
+        # mismatch when sys.platlibdir is not "lib".
+        skip_bpo_44860 = (
+            user
+            and k == "platlib"
+            and not WINDOWS
+            and sys.version_info >= (3, 9)
+            and _PLATLIBDIR != "lib"
+            and _looks_like_bpo_44860()
+        )
+        if skip_bpo_44860:
+            continue
+
+        # Both Debian and Red Hat patch Python to place the system site under
+        # /usr/local instead of /usr. Debian also places lib in dist-packages
+        # instead of site-packages, but the /usr/local check should cover it.
+        skip_linux_system_special_case = (
+            not (user or home or prefix or running_under_virtualenv())
+            and old_v.parts[1:3] == ("usr", "local")
+            and len(new_v.parts) > 1
+            and new_v.parts[1] == "usr"
+            and (len(new_v.parts) < 3 or new_v.parts[2] != "local")
+            and (_looks_like_red_hat_scheme() or _looks_like_debian_scheme())
+        )
+        if skip_linux_system_special_case:
+            continue
+
+        # On Python 3.7 and earlier, sysconfig does not include sys.abiflags in
+        # the "pythonX.Y" part of the path, but distutils does.
+        skip_sysconfig_abiflag_bug = (
+            sys.version_info < (3, 8)
+            and not WINDOWS
+            and k in ("headers", "platlib", "purelib")
+            and tuple(_fix_abiflags(old_v.parts)) == new_v.parts
+        )
+        if skip_sysconfig_abiflag_bug:
+            continue
+
+        # MSYS2 MINGW's sysconfig patch does not include the "site-packages"
+        # part of the path. This is incorrect and will be fixed in MSYS.
+        skip_msys2_mingw_bug = (
+            WINDOWS and k in ("platlib", "purelib") and _looks_like_msys2_mingw_scheme()
+        )
+        if skip_msys2_mingw_bug:
+            continue
+
+        # CPython's POSIX install script invokes pip (via ensurepip) against the
+        # interpreter located in the source tree, not the install site. This
+        # triggers special logic in sysconfig that's not present in distutils.
+        # https://github.com/python/cpython/blob/8c21941ddaf/Lib/sysconfig.py#L178-L194
+        skip_cpython_build = (
+            sysconfig.is_python_build(check_home=True)
+            and not WINDOWS
+            and k in ("headers", "include", "platinclude")
+        )
+        if skip_cpython_build:
+            continue
+
+        warning_contexts.append((old_v, new_v, f"scheme.{k}"))
+
+    if not warning_contexts:
+        return old
+
+    # Check if this path mismatch is caused by distutils config files. Those
+    # files will no longer work once we switch to sysconfig, so this raises a
+    # deprecation message for them.
+    default_old = _distutils.distutils_scheme(
+        dist_name,
+        user,
+        home,
+        root,
+        isolated,
+        prefix,
+        ignore_config_files=True,
+    )
+    if any(default_old[k] != getattr(old, k) for k in SCHEME_KEYS):
+        deprecated(
+            reason=(
+                "Configuring installation scheme with distutils config files "
+                "is deprecated and will no longer work in the near future. If you "
+                "are using a Homebrew or Linuxbrew Python, please see discussion "
+                "at https://github.com/Homebrew/homebrew-core/issues/76621"
+            ),
+            replacement=None,
+            gone_in=None,
+        )
+        return old
+
+    # Post warnings about this mismatch so user can report them back.
+    for old_v, new_v, key in warning_contexts:
+        _warn_mismatched(old_v, new_v, key=key)
+    _log_context(user=user, home=home, root=root, prefix=prefix)
+
+    return old
+
+
+def get_bin_prefix() -> str:
+    new = _sysconfig.get_bin_prefix()
+    if _USE_SYSCONFIG:
+        return new
+
+    old = _distutils.get_bin_prefix()
+    if _warn_if_mismatch(pathlib.Path(old), pathlib.Path(new), key="bin_prefix"):
+        _log_context()
+    return old
+
+
+def get_bin_user() -> str:
+    return _sysconfig.get_scheme("", user=True).scripts
+
+
+def _looks_like_deb_system_dist_packages(value: str) -> bool:
+    """Check if the value is Debian's APT-controlled dist-packages.
+
+    Debian's ``distutils.sysconfig.get_python_lib()`` implementation returns the
+    default package path controlled by APT, but does not patch ``sysconfig`` to
+    do the same. This is similar to the bug worked around in ``get_scheme()``,
+    but here the default is ``deb_system`` instead of ``unix_local``. Ultimately
+    we can't do anything about this Debian bug, and this detection allows us to
+    skip the warning when needed.
+    """
+    if not _looks_like_debian_scheme():
+        return False
+    if value == "/usr/lib/python3/dist-packages":
+        return True
+    return False
+
+
+def get_purelib() -> str:
+    """Return the default pure-Python lib location."""
+    new = _sysconfig.get_purelib()
+    if _USE_SYSCONFIG:
+        return new
+
+    old = _distutils.get_purelib()
+    if _looks_like_deb_system_dist_packages(old):
+        return old
+    if _warn_if_mismatch(pathlib.Path(old), pathlib.Path(new), key="purelib"):
+        _log_context()
+    return old
+
+
+def get_platlib() -> str:
+    """Return the default platform-shared lib location."""
+    new = _sysconfig.get_platlib()
+    if _USE_SYSCONFIG:
+        return new
+
+    old = _distutils.get_platlib()
+    if _looks_like_deb_system_dist_packages(old):
+        return old
+    if _warn_if_mismatch(pathlib.Path(old), pathlib.Path(new), key="platlib"):
+        _log_context()
+    return old
+
+
+def _deduplicated(v1: str, v2: str) -> List[str]:
+    """Deduplicate values from a list."""
+    if v1 == v2:
+        return [v1]
+    return [v1, v2]
+
+
+def get_prefixed_libs(prefix: str) -> List[str]:
+    """Return the lib locations under ``prefix``."""
+    new_pure, new_plat = _sysconfig.get_prefixed_libs(prefix)
+    if _USE_SYSCONFIG:
+        return _deduplicated(new_pure, new_plat)
+
+    old_pure, old_plat = _distutils.get_prefixed_libs(prefix)
+
+    warned = [
+        _warn_if_mismatch(
+            pathlib.Path(old_pure),
+            pathlib.Path(new_pure),
+            key="prefixed-purelib",
+        ),
+        _warn_if_mismatch(
+            pathlib.Path(old_plat),
+            pathlib.Path(new_plat),
+            key="prefixed-platlib",
+        ),
+    ]
+    if any(warned):
+        _log_context(prefix=prefix)
+
+    return _deduplicated(old_pure, old_plat)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/locations/_distutils.py b/utils/python-venv/Lib/site-packages/pip/_internal/locations/_distutils.py
new file mode 100644
index 0000000..2ec79e6
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/locations/_distutils.py
@@ -0,0 +1,169 @@
+"""Locations where we look for configs, install stuff, etc"""
+
+# The following comment should be removed at some point in the future.
+# mypy: strict-optional=False
+
+import logging
+import os
+import sys
+from distutils.cmd import Command as DistutilsCommand
+from distutils.command.install import SCHEME_KEYS
+from distutils.command.install import install as distutils_install_command
+from distutils.sysconfig import get_python_lib
+from typing import Dict, List, Optional, Tuple, Union, cast
+
+from pip._internal.models.scheme import Scheme
+from pip._internal.utils.compat import WINDOWS
+from pip._internal.utils.virtualenv import running_under_virtualenv
+
+from .base import get_major_minor_version
+
+logger = logging.getLogger(__name__)
+
+
+def distutils_scheme(
+    dist_name: str,
+    user: bool = False,
+    home: str = None,
+    root: str = None,
+    isolated: bool = False,
+    prefix: str = None,
+    *,
+    ignore_config_files: bool = False,
+) -> Dict[str, str]:
+    """
+    Return a distutils install scheme
+    """
+    from distutils.dist import Distribution
+
+    dist_args: Dict[str, Union[str, List[str]]] = {"name": dist_name}
+    if isolated:
+        dist_args["script_args"] = ["--no-user-cfg"]
+
+    d = Distribution(dist_args)
+    if not ignore_config_files:
+        try:
+            d.parse_config_files()
+        except UnicodeDecodeError:
+            # Typeshed does not include find_config_files() for some reason.
+            paths = d.find_config_files()  # type: ignore
+            logger.warning(
+                "Ignore distutils configs in %s due to encoding errors.",
+                ", ".join(os.path.basename(p) for p in paths),
+            )
+    obj: Optional[DistutilsCommand] = None
+    obj = d.get_command_obj("install", create=True)
+    assert obj is not None
+    i = cast(distutils_install_command, obj)
+    # NOTE: setting user or home has the side-effect of creating the home dir
+    # or user base for installations during finalize_options()
+    # ideally, we'd prefer a scheme class that has no side-effects.
+    assert not (user and prefix), f"user={user} prefix={prefix}"
+    assert not (home and prefix), f"home={home} prefix={prefix}"
+    i.user = user or i.user
+    if user or home:
+        i.prefix = ""
+    i.prefix = prefix or i.prefix
+    i.home = home or i.home
+    i.root = root or i.root
+    i.finalize_options()
+
+    scheme = {}
+    for key in SCHEME_KEYS:
+        scheme[key] = getattr(i, "install_" + key)
+
+    # install_lib specified in setup.cfg should install *everything*
+    # into there (i.e. it takes precedence over both purelib and
+    # platlib).  Note, i.install_lib is *always* set after
+    # finalize_options(); we only want to override here if the user
+    # has explicitly requested it hence going back to the config
+    if "install_lib" in d.get_option_dict("install"):
+        scheme.update(dict(purelib=i.install_lib, platlib=i.install_lib))
+
+    if running_under_virtualenv():
+        if home:
+            prefix = home
+        elif user:
+            prefix = i.install_userbase  # type: ignore
+        else:
+            prefix = i.prefix
+        scheme["headers"] = os.path.join(
+            prefix,
+            "include",
+            "site",
+            f"python{get_major_minor_version()}",
+            dist_name,
+        )
+
+        if root is not None:
+            path_no_drive = os.path.splitdrive(os.path.abspath(scheme["headers"]))[1]
+            scheme["headers"] = os.path.join(root, path_no_drive[1:])
+
+    return scheme
+
+
+def get_scheme(
+    dist_name: str,
+    user: bool = False,
+    home: Optional[str] = None,
+    root: Optional[str] = None,
+    isolated: bool = False,
+    prefix: Optional[str] = None,
+) -> Scheme:
+    """
+    Get the "scheme" corresponding to the input parameters. The distutils
+    documentation provides the context for the available schemes:
+    https://docs.python.org/3/install/index.html#alternate-installation
+
+    :param dist_name: the name of the package to retrieve the scheme for, used
+        in the headers scheme path
+    :param user: indicates to use the "user" scheme
+    :param home: indicates to use the "home" scheme and provides the base
+        directory for the same
+    :param root: root under which other directories are re-based
+    :param isolated: equivalent to --no-user-cfg, i.e. do not consider
+        ~/.pydistutils.cfg (posix) or ~/pydistutils.cfg (non-posix) for
+        scheme paths
+    :param prefix: indicates to use the "prefix" scheme and provides the
+        base directory for the same
+    """
+    scheme = distutils_scheme(dist_name, user, home, root, isolated, prefix)
+    return Scheme(
+        platlib=scheme["platlib"],
+        purelib=scheme["purelib"],
+        headers=scheme["headers"],
+        scripts=scheme["scripts"],
+        data=scheme["data"],
+    )
+
+
+def get_bin_prefix() -> str:
+    # XXX: In old virtualenv versions, sys.prefix can contain '..' components,
+    # so we need to call normpath to eliminate them.
+    prefix = os.path.normpath(sys.prefix)
+    if WINDOWS:
+        bin_py = os.path.join(prefix, "Scripts")
+        # buildout uses 'bin' on Windows too?
+        if not os.path.exists(bin_py):
+            bin_py = os.path.join(prefix, "bin")
+        return bin_py
+    # Forcing to use /usr/local/bin for standard macOS framework installs
+    # Also log to ~/Library/Logs/ for use with the Console.app log viewer
+    if sys.platform[:6] == "darwin" and prefix[:16] == "/System/Library/":
+        return "/usr/local/bin"
+    return os.path.join(prefix, "bin")
+
+
+def get_purelib() -> str:
+    return get_python_lib(plat_specific=False)
+
+
+def get_platlib() -> str:
+    return get_python_lib(plat_specific=True)
+
+
+def get_prefixed_libs(prefix: str) -> Tuple[str, str]:
+    return (
+        get_python_lib(plat_specific=False, prefix=prefix),
+        get_python_lib(plat_specific=True, prefix=prefix),
+    )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/locations/_sysconfig.py b/utils/python-venv/Lib/site-packages/pip/_internal/locations/_sysconfig.py
new file mode 100644
index 0000000..5e141aa
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/locations/_sysconfig.py
@@ -0,0 +1,219 @@
+import distutils.util  # FIXME: For change_root.
+import logging
+import os
+import sys
+import sysconfig
+import typing
+
+from pip._internal.exceptions import InvalidSchemeCombination, UserInstallationInvalid
+from pip._internal.models.scheme import SCHEME_KEYS, Scheme
+from pip._internal.utils.virtualenv import running_under_virtualenv
+
+from .base import get_major_minor_version, is_osx_framework
+
+logger = logging.getLogger(__name__)
+
+
+# Notes on _infer_* functions.
+# Unfortunately ``get_default_scheme()`` didn't exist before 3.10, so there's no
+# way to ask things like "what is the '_prefix' scheme on this platform". These
+# functions try to answer that with some heuristics while accounting for ad-hoc
+# platforms not covered by CPython's default sysconfig implementation. If the
+# ad-hoc implementation does not fully implement sysconfig, we'll fall back to
+# a POSIX scheme.
+
+_AVAILABLE_SCHEMES = set(sysconfig.get_scheme_names())
+
+_PREFERRED_SCHEME_API = getattr(sysconfig, "get_preferred_scheme", None)
+
+
+def _should_use_osx_framework_prefix() -> bool:
+    """Check for Apple's ``osx_framework_library`` scheme.
+
+    Python distributed by Apple's Command Line Tools has this special scheme
+    that's used when:
+
+    * This is a framework build.
+    * We are installing into the system prefix.
+
+    This does not account for ``pip install --prefix`` (also means we're not
+    installing to the system prefix), which should use ``posix_prefix``, but
+    logic here means ``_infer_prefix()`` outputs ``osx_framework_library``. But
+    since ``prefix`` is not available for ``sysconfig.get_default_scheme()``,
+    which is the stdlib replacement for ``_infer_prefix()``, presumably Apple
+    wouldn't be able to magically switch between ``osx_framework_library`` and
+    ``posix_prefix``. ``_infer_prefix()`` returning ``osx_framework_library``
+    means its behavior is consistent whether we use the stdlib implementation
+    or our own, and we deal with this special case in ``get_scheme()`` instead.
+    """
+    return (
+        "osx_framework_library" in _AVAILABLE_SCHEMES
+        and not running_under_virtualenv()
+        and is_osx_framework()
+    )
+
+
+def _infer_prefix() -> str:
+    """Try to find a prefix scheme for the current platform.
+
+    This tries:
+
+    * A special ``osx_framework_library`` for Python distributed by Apple's
+      Command Line Tools, when not running in a virtual environment.
+    * Implementation + OS, used by PyPy on Windows (``pypy_nt``).
+    * Implementation without OS, used by PyPy on POSIX (``pypy``).
+    * OS + "prefix", used by CPython on POSIX (``posix_prefix``).
+    * Just the OS name, used by CPython on Windows (``nt``).
+
+    If none of the above works, fall back to ``posix_prefix``.
+    """
+    if _PREFERRED_SCHEME_API:
+        return _PREFERRED_SCHEME_API("prefix")
+    if _should_use_osx_framework_prefix():
+        return "osx_framework_library"
+    implementation_suffixed = f"{sys.implementation.name}_{os.name}"
+    if implementation_suffixed in _AVAILABLE_SCHEMES:
+        return implementation_suffixed
+    if sys.implementation.name in _AVAILABLE_SCHEMES:
+        return sys.implementation.name
+    suffixed = f"{os.name}_prefix"
+    if suffixed in _AVAILABLE_SCHEMES:
+        return suffixed
+    if os.name in _AVAILABLE_SCHEMES:  # On Windows, prefx is just called "nt".
+        return os.name
+    return "posix_prefix"
+
+
+def _infer_user() -> str:
+    """Try to find a user scheme for the current platform."""
+    if _PREFERRED_SCHEME_API:
+        return _PREFERRED_SCHEME_API("user")
+    if is_osx_framework() and not running_under_virtualenv():
+        suffixed = "osx_framework_user"
+    else:
+        suffixed = f"{os.name}_user"
+    if suffixed in _AVAILABLE_SCHEMES:
+        return suffixed
+    if "posix_user" not in _AVAILABLE_SCHEMES:  # User scheme unavailable.
+        raise UserInstallationInvalid()
+    return "posix_user"
+
+
+def _infer_home() -> str:
+    """Try to find a home for the current platform."""
+    if _PREFERRED_SCHEME_API:
+        return _PREFERRED_SCHEME_API("home")
+    suffixed = f"{os.name}_home"
+    if suffixed in _AVAILABLE_SCHEMES:
+        return suffixed
+    return "posix_home"
+
+
+# Update these keys if the user sets a custom home.
+_HOME_KEYS = [
+    "installed_base",
+    "base",
+    "installed_platbase",
+    "platbase",
+    "prefix",
+    "exec_prefix",
+]
+if sysconfig.get_config_var("userbase") is not None:
+    _HOME_KEYS.append("userbase")
+
+
+def get_scheme(
+    dist_name: str,
+    user: bool = False,
+    home: typing.Optional[str] = None,
+    root: typing.Optional[str] = None,
+    isolated: bool = False,
+    prefix: typing.Optional[str] = None,
+) -> Scheme:
+    """
+    Get the "scheme" corresponding to the input parameters.
+
+    :param dist_name: the name of the package to retrieve the scheme for, used
+        in the headers scheme path
+    :param user: indicates to use the "user" scheme
+    :param home: indicates to use the "home" scheme
+    :param root: root under which other directories are re-based
+    :param isolated: ignored, but kept for distutils compatibility (where
+        this controls whether the user-site pydistutils.cfg is honored)
+    :param prefix: indicates to use the "prefix" scheme and provides the
+        base directory for the same
+    """
+    if user and prefix:
+        raise InvalidSchemeCombination("--user", "--prefix")
+    if home and prefix:
+        raise InvalidSchemeCombination("--home", "--prefix")
+
+    if home is not None:
+        scheme_name = _infer_home()
+    elif user:
+        scheme_name = _infer_user()
+    else:
+        scheme_name = _infer_prefix()
+
+    # Special case: When installing into a custom prefix, use posix_prefix
+    # instead of osx_framework_library. See _should_use_osx_framework_prefix()
+    # docstring for details.
+    if prefix is not None and scheme_name == "osx_framework_library":
+        scheme_name = "posix_prefix"
+
+    if home is not None:
+        variables = {k: home for k in _HOME_KEYS}
+    elif prefix is not None:
+        variables = {k: prefix for k in _HOME_KEYS}
+    else:
+        variables = {}
+
+    paths = sysconfig.get_paths(scheme=scheme_name, vars=variables)
+
+    # Logic here is very arbitrary, we're doing it for compatibility, don't ask.
+    # 1. Pip historically uses a special header path in virtual environments.
+    # 2. If the distribution name is not known, distutils uses 'UNKNOWN'. We
+    #    only do the same when not running in a virtual environment because
+    #    pip's historical header path logic (see point 1) did not do this.
+    if running_under_virtualenv():
+        if user:
+            base = variables.get("userbase", sys.prefix)
+        else:
+            base = variables.get("base", sys.prefix)
+        python_xy = f"python{get_major_minor_version()}"
+        paths["include"] = os.path.join(base, "include", "site", python_xy)
+    elif not dist_name:
+        dist_name = "UNKNOWN"
+
+    scheme = Scheme(
+        platlib=paths["platlib"],
+        purelib=paths["purelib"],
+        headers=os.path.join(paths["include"], dist_name),
+        scripts=paths["scripts"],
+        data=paths["data"],
+    )
+    if root is not None:
+        for key in SCHEME_KEYS:
+            value = distutils.util.change_root(root, getattr(scheme, key))
+            setattr(scheme, key, value)
+    return scheme
+
+
+def get_bin_prefix() -> str:
+    # Forcing to use /usr/local/bin for standard macOS framework installs.
+    if sys.platform[:6] == "darwin" and sys.prefix[:16] == "/System/Library/":
+        return "/usr/local/bin"
+    return sysconfig.get_paths()["scripts"]
+
+
+def get_purelib() -> str:
+    return sysconfig.get_paths()["purelib"]
+
+
+def get_platlib() -> str:
+    return sysconfig.get_paths()["platlib"]
+
+
+def get_prefixed_libs(prefix: str) -> typing.Tuple[str, str]:
+    paths = sysconfig.get_paths(vars={"base": prefix, "platbase": prefix})
+    return (paths["purelib"], paths["platlib"])
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/locations/base.py b/utils/python-venv/Lib/site-packages/pip/_internal/locations/base.py
new file mode 100644
index 0000000..86dad4a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/locations/base.py
@@ -0,0 +1,52 @@
+import functools
+import os
+import site
+import sys
+import sysconfig
+import typing
+
+from pip._internal.utils import appdirs
+from pip._internal.utils.virtualenv import running_under_virtualenv
+
+# Application Directories
+USER_CACHE_DIR = appdirs.user_cache_dir("pip")
+
+# FIXME doesn't account for venv linked to global site-packages
+site_packages: typing.Optional[str] = sysconfig.get_path("purelib")
+
+
+def get_major_minor_version() -> str:
+    """
+    Return the major-minor version of the current Python as a string, e.g.
+    "3.7" or "3.10".
+    """
+    return "{}.{}".format(*sys.version_info)
+
+
+def get_src_prefix() -> str:
+    if running_under_virtualenv():
+        src_prefix = os.path.join(sys.prefix, "src")
+    else:
+        # FIXME: keep src in cwd for now (it is not a temporary folder)
+        try:
+            src_prefix = os.path.join(os.getcwd(), "src")
+        except OSError:
+            # In case the current working directory has been renamed or deleted
+            sys.exit("The folder you are executing pip from can no longer be found.")
+
+    # under macOS + virtualenv sys.prefix is not properly resolved
+    # it is something like /path/to/python/bin/..
+    return os.path.abspath(src_prefix)
+
+
+try:
+    # Use getusersitepackages if this is present, as it ensures that the
+    # value is initialised properly.
+    user_site: typing.Optional[str] = site.getusersitepackages()
+except AttributeError:
+    user_site = site.USER_SITE
+
+
+@functools.lru_cache(maxsize=None)
+def is_osx_framework() -> bool:
+    return bool(sysconfig.get_config_var("PYTHONFRAMEWORK"))
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/main.py b/utils/python-venv/Lib/site-packages/pip/_internal/main.py
new file mode 100644
index 0000000..33c6d24
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/main.py
@@ -0,0 +1,12 @@
+from typing import List, Optional
+
+
+def main(args: Optional[List[str]] = None) -> int:
+    """This is preserved for old console scripts that may still be referencing
+    it.
+
+    For additional details, see https://github.com/pypa/pip/issues/7498.
+    """
+    from pip._internal.utils.entrypoints import _wrapper
+
+    return _wrapper(args)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/metadata/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/metadata/__init__.py
new file mode 100644
index 0000000..f4f2a4f
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/metadata/__init__.py
@@ -0,0 +1,51 @@
+from typing import List, Optional
+
+from .base import BaseDistribution, BaseEnvironment, FilesystemWheel, MemoryWheel, Wheel
+
+__all__ = [
+    "BaseDistribution",
+    "BaseEnvironment",
+    "FilesystemWheel",
+    "MemoryWheel",
+    "Wheel",
+    "get_default_environment",
+    "get_environment",
+    "get_wheel_distribution",
+]
+
+
+def get_default_environment() -> BaseEnvironment:
+    """Get the default representation for the current environment.
+
+    This returns an Environment instance from the chosen backend. The default
+    Environment instance should be built from ``sys.path`` and may use caching
+    to share instance state accorss calls.
+    """
+    from .pkg_resources import Environment
+
+    return Environment.default()
+
+
+def get_environment(paths: Optional[List[str]]) -> BaseEnvironment:
+    """Get a representation of the environment specified by ``paths``.
+
+    This returns an Environment instance from the chosen backend based on the
+    given import paths. The backend must build a fresh instance representing
+    the state of installed distributions when this function is called.
+    """
+    from .pkg_resources import Environment
+
+    return Environment.from_paths(paths)
+
+
+def get_wheel_distribution(wheel: Wheel, canonical_name: str) -> BaseDistribution:
+    """Get the representation of the specified wheel's distribution metadata.
+
+    This returns a Distribution instance from the chosen backend based on
+    the given wheel's ``.dist-info`` directory.
+
+    :param canonical_name: Normalized project name of the given wheel.
+    """
+    from .pkg_resources import Distribution
+
+    return Distribution.from_wheel(wheel, canonical_name)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/metadata/base.py b/utils/python-venv/Lib/site-packages/pip/_internal/metadata/base.py
new file mode 100644
index 0000000..4788360
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/metadata/base.py
@@ -0,0 +1,330 @@
+import email.message
+import json
+import logging
+import re
+import zipfile
+from typing import (
+    IO,
+    TYPE_CHECKING,
+    Collection,
+    Container,
+    Iterable,
+    Iterator,
+    List,
+    Optional,
+    Union,
+)
+
+from pip._vendor.packaging.requirements import Requirement
+from pip._vendor.packaging.specifiers import InvalidSpecifier, SpecifierSet
+from pip._vendor.packaging.utils import NormalizedName
+from pip._vendor.packaging.version import LegacyVersion, Version
+
+from pip._internal.models.direct_url import (
+    DIRECT_URL_METADATA_NAME,
+    DirectUrl,
+    DirectUrlValidationError,
+)
+from pip._internal.utils.compat import stdlib_pkgs  # TODO: Move definition here.
+from pip._internal.utils.egg_link import egg_link_path_from_sys_path
+from pip._internal.utils.urls import url_to_path
+
+if TYPE_CHECKING:
+    from typing import Protocol
+else:
+    Protocol = object
+
+DistributionVersion = Union[LegacyVersion, Version]
+
+logger = logging.getLogger(__name__)
+
+
+class BaseEntryPoint(Protocol):
+    @property
+    def name(self) -> str:
+        raise NotImplementedError()
+
+    @property
+    def value(self) -> str:
+        raise NotImplementedError()
+
+    @property
+    def group(self) -> str:
+        raise NotImplementedError()
+
+
+class BaseDistribution(Protocol):
+    def __repr__(self) -> str:
+        return f"{self.raw_name} {self.version} ({self.location})"
+
+    def __str__(self) -> str:
+        return f"{self.raw_name} {self.version}"
+
+    @property
+    def location(self) -> Optional[str]:
+        """Where the distribution is loaded from.
+
+        A string value is not necessarily a filesystem path, since distributions
+        can be loaded from other sources, e.g. arbitrary zip archives. ``None``
+        means the distribution is created in-memory.
+
+        Do not canonicalize this value with e.g. ``pathlib.Path.resolve()``. If
+        this is a symbolic link, we want to preserve the relative path between
+        it and files in the distribution.
+        """
+        raise NotImplementedError()
+
+    @property
+    def editable_project_location(self) -> Optional[str]:
+        """The project location for editable distributions.
+
+        This is the directory where pyproject.toml or setup.py is located.
+        None if the distribution is not installed in editable mode.
+        """
+        # TODO: this property is relatively costly to compute, memoize it ?
+        direct_url = self.direct_url
+        if direct_url:
+            if direct_url.is_local_editable():
+                return url_to_path(direct_url.url)
+        else:
+            # Search for an .egg-link file by walking sys.path, as it was
+            # done before by dist_is_editable().
+            egg_link_path = egg_link_path_from_sys_path(self.raw_name)
+            if egg_link_path:
+                # TODO: get project location from second line of egg_link file
+                #       (https://github.com/pypa/pip/issues/10243)
+                return self.location
+        return None
+
+    @property
+    def info_directory(self) -> Optional[str]:
+        """Location of the .[egg|dist]-info directory.
+
+        Similarly to ``location``, a string value is not necessarily a
+        filesystem path. ``None`` means the distribution is created in-memory.
+
+        For a modern .dist-info installation on disk, this should be something
+        like ``{location}/{raw_name}-{version}.dist-info``.
+
+        Do not canonicalize this value with e.g. ``pathlib.Path.resolve()``. If
+        this is a symbolic link, we want to preserve the relative path between
+        it and other files in the distribution.
+        """
+        raise NotImplementedError()
+
+    @property
+    def canonical_name(self) -> NormalizedName:
+        raise NotImplementedError()
+
+    @property
+    def version(self) -> DistributionVersion:
+        raise NotImplementedError()
+
+    @property
+    def direct_url(self) -> Optional[DirectUrl]:
+        """Obtain a DirectUrl from this distribution.
+
+        Returns None if the distribution has no `direct_url.json` metadata,
+        or if `direct_url.json` is invalid.
+        """
+        try:
+            content = self.read_text(DIRECT_URL_METADATA_NAME)
+        except FileNotFoundError:
+            return None
+        try:
+            return DirectUrl.from_json(content)
+        except (
+            UnicodeDecodeError,
+            json.JSONDecodeError,
+            DirectUrlValidationError,
+        ) as e:
+            logger.warning(
+                "Error parsing %s for %s: %s",
+                DIRECT_URL_METADATA_NAME,
+                self.canonical_name,
+                e,
+            )
+            return None
+
+    @property
+    def installer(self) -> str:
+        raise NotImplementedError()
+
+    @property
+    def editable(self) -> bool:
+        return bool(self.editable_project_location)
+
+    @property
+    def local(self) -> bool:
+        raise NotImplementedError()
+
+    @property
+    def in_usersite(self) -> bool:
+        raise NotImplementedError()
+
+    @property
+    def in_site_packages(self) -> bool:
+        raise NotImplementedError()
+
+    def read_text(self, name: str) -> str:
+        """Read a file in the .dist-info (or .egg-info) directory.
+
+        Should raise ``FileNotFoundError`` if ``name`` does not exist in the
+        metadata directory.
+        """
+        raise NotImplementedError()
+
+    def iter_entry_points(self) -> Iterable[BaseEntryPoint]:
+        raise NotImplementedError()
+
+    @property
+    def metadata(self) -> email.message.Message:
+        """Metadata of distribution parsed from e.g. METADATA or PKG-INFO."""
+        raise NotImplementedError()
+
+    @property
+    def metadata_version(self) -> Optional[str]:
+        """Value of "Metadata-Version:" in distribution metadata, if available."""
+        return self.metadata.get("Metadata-Version")
+
+    @property
+    def raw_name(self) -> str:
+        """Value of "Name:" in distribution metadata."""
+        # The metadata should NEVER be missing the Name: key, but if it somehow
+        # does, fall back to the known canonical name.
+        return self.metadata.get("Name", self.canonical_name)
+
+    @property
+    def requires_python(self) -> SpecifierSet:
+        """Value of "Requires-Python:" in distribution metadata.
+
+        If the key does not exist or contains an invalid value, an empty
+        SpecifierSet should be returned.
+        """
+        value = self.metadata.get("Requires-Python")
+        if value is None:
+            return SpecifierSet()
+        try:
+            # Convert to str to satisfy the type checker; this can be a Header object.
+            spec = SpecifierSet(str(value))
+        except InvalidSpecifier as e:
+            message = "Package %r has an invalid Requires-Python: %s"
+            logger.warning(message, self.raw_name, e)
+            return SpecifierSet()
+        return spec
+
+    def iter_dependencies(self, extras: Collection[str] = ()) -> Iterable[Requirement]:
+        """Dependencies of this distribution.
+
+        For modern .dist-info distributions, this is the collection of
+        "Requires-Dist:" entries in distribution metadata.
+        """
+        raise NotImplementedError()
+
+    def iter_provided_extras(self) -> Iterable[str]:
+        """Extras provided by this distribution.
+
+        For modern .dist-info distributions, this is the collection of
+        "Provides-Extra:" entries in distribution metadata.
+        """
+        raise NotImplementedError()
+
+
+class BaseEnvironment:
+    """An environment containing distributions to introspect."""
+
+    @classmethod
+    def default(cls) -> "BaseEnvironment":
+        raise NotImplementedError()
+
+    @classmethod
+    def from_paths(cls, paths: Optional[List[str]]) -> "BaseEnvironment":
+        raise NotImplementedError()
+
+    def get_distribution(self, name: str) -> Optional["BaseDistribution"]:
+        """Given a requirement name, return the installed distributions."""
+        raise NotImplementedError()
+
+    def _iter_distributions(self) -> Iterator["BaseDistribution"]:
+        """Iterate through installed distributions.
+
+        This function should be implemented by subclass, but never called
+        directly. Use the public ``iter_distribution()`` instead, which
+        implements additional logic to make sure the distributions are valid.
+        """
+        raise NotImplementedError()
+
+    def iter_distributions(self) -> Iterator["BaseDistribution"]:
+        """Iterate through installed distributions."""
+        for dist in self._iter_distributions():
+            # Make sure the distribution actually comes from a valid Python
+            # packaging distribution. Pip's AdjacentTempDirectory leaves folders
+            # e.g. ``~atplotlib.dist-info`` if cleanup was interrupted. The
+            # valid project name pattern is taken from PEP 508.
+            project_name_valid = re.match(
+                r"^([A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9])$",
+                dist.canonical_name,
+                flags=re.IGNORECASE,
+            )
+            if not project_name_valid:
+                logger.warning(
+                    "Ignoring invalid distribution %s (%s)",
+                    dist.canonical_name,
+                    dist.location,
+                )
+                continue
+            yield dist
+
+    def iter_installed_distributions(
+        self,
+        local_only: bool = True,
+        skip: Container[str] = stdlib_pkgs,
+        include_editables: bool = True,
+        editables_only: bool = False,
+        user_only: bool = False,
+    ) -> Iterator[BaseDistribution]:
+        """Return a list of installed distributions.
+
+        :param local_only: If True (default), only return installations
+        local to the current virtualenv, if in a virtualenv.
+        :param skip: An iterable of canonicalized project names to ignore;
+            defaults to ``stdlib_pkgs``.
+        :param include_editables: If False, don't report editables.
+        :param editables_only: If True, only report editables.
+        :param user_only: If True, only report installations in the user
+        site directory.
+        """
+        it = self.iter_distributions()
+        if local_only:
+            it = (d for d in it if d.local)
+        if not include_editables:
+            it = (d for d in it if not d.editable)
+        if editables_only:
+            it = (d for d in it if d.editable)
+        if user_only:
+            it = (d for d in it if d.in_usersite)
+        return (d for d in it if d.canonical_name not in skip)
+
+
+class Wheel(Protocol):
+    location: str
+
+    def as_zipfile(self) -> zipfile.ZipFile:
+        raise NotImplementedError()
+
+
+class FilesystemWheel(Wheel):
+    def __init__(self, location: str) -> None:
+        self.location = location
+
+    def as_zipfile(self) -> zipfile.ZipFile:
+        return zipfile.ZipFile(self.location, allowZip64=True)
+
+
+class MemoryWheel(Wheel):
+    def __init__(self, location: str, stream: IO[bytes]) -> None:
+        self.location = location
+        self.stream = stream
+
+    def as_zipfile(self) -> zipfile.ZipFile:
+        return zipfile.ZipFile(self.stream, allowZip64=True)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/metadata/pkg_resources.py b/utils/python-venv/Lib/site-packages/pip/_internal/metadata/pkg_resources.py
new file mode 100644
index 0000000..e8a8a38
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/metadata/pkg_resources.py
@@ -0,0 +1,146 @@
+import email.message
+import logging
+from typing import Collection, Iterable, Iterator, List, NamedTuple, Optional
+
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.requirements import Requirement
+from pip._vendor.packaging.utils import NormalizedName, canonicalize_name
+from pip._vendor.packaging.version import parse as parse_version
+
+from pip._internal.utils import misc  # TODO: Move definition here.
+from pip._internal.utils.packaging import get_installer, get_metadata
+from pip._internal.utils.wheel import pkg_resources_distribution_for_wheel
+
+from .base import (
+    BaseDistribution,
+    BaseEntryPoint,
+    BaseEnvironment,
+    DistributionVersion,
+    Wheel,
+)
+
+logger = logging.getLogger(__name__)
+
+
+class EntryPoint(NamedTuple):
+    name: str
+    value: str
+    group: str
+
+
+class Distribution(BaseDistribution):
+    def __init__(self, dist: pkg_resources.Distribution) -> None:
+        self._dist = dist
+
+    @classmethod
+    def from_wheel(cls, wheel: Wheel, name: str) -> "Distribution":
+        with wheel.as_zipfile() as zf:
+            dist = pkg_resources_distribution_for_wheel(zf, name, wheel.location)
+        return cls(dist)
+
+    @property
+    def location(self) -> Optional[str]:
+        return self._dist.location
+
+    @property
+    def info_directory(self) -> Optional[str]:
+        return self._dist.egg_info
+
+    @property
+    def canonical_name(self) -> NormalizedName:
+        return canonicalize_name(self._dist.project_name)
+
+    @property
+    def version(self) -> DistributionVersion:
+        return parse_version(self._dist.version)
+
+    @property
+    def installer(self) -> str:
+        return get_installer(self._dist)
+
+    @property
+    def local(self) -> bool:
+        return misc.dist_is_local(self._dist)
+
+    @property
+    def in_usersite(self) -> bool:
+        return misc.dist_in_usersite(self._dist)
+
+    @property
+    def in_site_packages(self) -> bool:
+        return misc.dist_in_site_packages(self._dist)
+
+    def read_text(self, name: str) -> str:
+        if not self._dist.has_metadata(name):
+            raise FileNotFoundError(name)
+        return self._dist.get_metadata(name)
+
+    def iter_entry_points(self) -> Iterable[BaseEntryPoint]:
+        for group, entries in self._dist.get_entry_map().items():
+            for name, entry_point in entries.items():
+                name, _, value = str(entry_point).partition("=")
+                yield EntryPoint(name=name.strip(), value=value.strip(), group=group)
+
+    @property
+    def metadata(self) -> email.message.Message:
+        return get_metadata(self._dist)
+
+    def iter_dependencies(self, extras: Collection[str] = ()) -> Iterable[Requirement]:
+        if extras:  # pkg_resources raises on invalid extras, so we sanitize.
+            extras = frozenset(extras).intersection(self._dist.extras)
+        return self._dist.requires(extras)
+
+    def iter_provided_extras(self) -> Iterable[str]:
+        return self._dist.extras
+
+
+class Environment(BaseEnvironment):
+    def __init__(self, ws: pkg_resources.WorkingSet) -> None:
+        self._ws = ws
+
+    @classmethod
+    def default(cls) -> BaseEnvironment:
+        return cls(pkg_resources.working_set)
+
+    @classmethod
+    def from_paths(cls, paths: Optional[List[str]]) -> BaseEnvironment:
+        return cls(pkg_resources.WorkingSet(paths))
+
+    def _search_distribution(self, name: str) -> Optional[BaseDistribution]:
+        """Find a distribution matching the ``name`` in the environment.
+
+        This searches from *all* distributions available in the environment, to
+        match the behavior of ``pkg_resources.get_distribution()``.
+        """
+        canonical_name = canonicalize_name(name)
+        for dist in self.iter_distributions():
+            if dist.canonical_name == canonical_name:
+                return dist
+        return None
+
+    def get_distribution(self, name: str) -> Optional[BaseDistribution]:
+
+        # Search the distribution by looking through the working set.
+        dist = self._search_distribution(name)
+        if dist:
+            return dist
+
+        # If distribution could not be found, call working_set.require to
+        # update the working set, and try to find the distribution again.
+        # This might happen for e.g. when you install a package twice, once
+        # using setup.py develop and again using setup.py install. Now when
+        # running pip uninstall twice, the package gets removed from the
+        # working set in the first uninstall, so we have to populate the
+        # working set again so that pip knows about it and the packages gets
+        # picked up and is successfully uninstalled the second time too.
+        try:
+            # We didn't pass in any version specifiers, so this can never
+            # raise pkg_resources.VersionConflict.
+            self._ws.require(name)
+        except pkg_resources.DistributionNotFound:
+            return None
+        return self._search_distribution(name)
+
+    def _iter_distributions(self) -> Iterator[BaseDistribution]:
+        for dist in self._ws:
+            yield Distribution(dist)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/__init__.py
new file mode 100644
index 0000000..7855226
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/__init__.py
@@ -0,0 +1,2 @@
+"""A package that contains models that represent entities.
+"""
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/candidate.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/candidate.py
new file mode 100644
index 0000000..a4963ae
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/candidate.py
@@ -0,0 +1,34 @@
+from pip._vendor.packaging.version import parse as parse_version
+
+from pip._internal.models.link import Link
+from pip._internal.utils.models import KeyBasedCompareMixin
+
+
+class InstallationCandidate(KeyBasedCompareMixin):
+    """Represents a potential "candidate" for installation."""
+
+    __slots__ = ["name", "version", "link"]
+
+    def __init__(self, name: str, version: str, link: Link) -> None:
+        self.name = name
+        self.version = parse_version(version)
+        self.link = link
+
+        super().__init__(
+            key=(self.name, self.version, self.link),
+            defining_class=InstallationCandidate,
+        )
+
+    def __repr__(self) -> str:
+        return "".format(
+            self.name,
+            self.version,
+            self.link,
+        )
+
+    def __str__(self) -> str:
+        return "{!r} candidate (version {} at {})".format(
+            self.name,
+            self.version,
+            self.link,
+        )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/direct_url.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/direct_url.py
new file mode 100644
index 0000000..92060d4
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/direct_url.py
@@ -0,0 +1,220 @@
+""" PEP 610 """
+import json
+import re
+import urllib.parse
+from typing import Any, Dict, Iterable, Optional, Type, TypeVar, Union
+
+__all__ = [
+    "DirectUrl",
+    "DirectUrlValidationError",
+    "DirInfo",
+    "ArchiveInfo",
+    "VcsInfo",
+]
+
+T = TypeVar("T")
+
+DIRECT_URL_METADATA_NAME = "direct_url.json"
+ENV_VAR_RE = re.compile(r"^\$\{[A-Za-z0-9-_]+\}(:\$\{[A-Za-z0-9-_]+\})?$")
+
+
+class DirectUrlValidationError(Exception):
+    pass
+
+
+def _get(
+    d: Dict[str, Any], expected_type: Type[T], key: str, default: Optional[T] = None
+) -> Optional[T]:
+    """Get value from dictionary and verify expected type."""
+    if key not in d:
+        return default
+    value = d[key]
+    if not isinstance(value, expected_type):
+        raise DirectUrlValidationError(
+            "{!r} has unexpected type for {} (expected {})".format(
+                value, key, expected_type
+            )
+        )
+    return value
+
+
+def _get_required(
+    d: Dict[str, Any], expected_type: Type[T], key: str, default: Optional[T] = None
+) -> T:
+    value = _get(d, expected_type, key, default)
+    if value is None:
+        raise DirectUrlValidationError(f"{key} must have a value")
+    return value
+
+
+def _exactly_one_of(infos: Iterable[Optional["InfoType"]]) -> "InfoType":
+    infos = [info for info in infos if info is not None]
+    if not infos:
+        raise DirectUrlValidationError(
+            "missing one of archive_info, dir_info, vcs_info"
+        )
+    if len(infos) > 1:
+        raise DirectUrlValidationError(
+            "more than one of archive_info, dir_info, vcs_info"
+        )
+    assert infos[0] is not None
+    return infos[0]
+
+
+def _filter_none(**kwargs: Any) -> Dict[str, Any]:
+    """Make dict excluding None values."""
+    return {k: v for k, v in kwargs.items() if v is not None}
+
+
+class VcsInfo:
+    name = "vcs_info"
+
+    def __init__(
+        self,
+        vcs: str,
+        commit_id: str,
+        requested_revision: Optional[str] = None,
+        resolved_revision: Optional[str] = None,
+        resolved_revision_type: Optional[str] = None,
+    ) -> None:
+        self.vcs = vcs
+        self.requested_revision = requested_revision
+        self.commit_id = commit_id
+        self.resolved_revision = resolved_revision
+        self.resolved_revision_type = resolved_revision_type
+
+    @classmethod
+    def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["VcsInfo"]:
+        if d is None:
+            return None
+        return cls(
+            vcs=_get_required(d, str, "vcs"),
+            commit_id=_get_required(d, str, "commit_id"),
+            requested_revision=_get(d, str, "requested_revision"),
+            resolved_revision=_get(d, str, "resolved_revision"),
+            resolved_revision_type=_get(d, str, "resolved_revision_type"),
+        )
+
+    def _to_dict(self) -> Dict[str, Any]:
+        return _filter_none(
+            vcs=self.vcs,
+            requested_revision=self.requested_revision,
+            commit_id=self.commit_id,
+            resolved_revision=self.resolved_revision,
+            resolved_revision_type=self.resolved_revision_type,
+        )
+
+
+class ArchiveInfo:
+    name = "archive_info"
+
+    def __init__(
+        self,
+        hash: Optional[str] = None,
+    ) -> None:
+        self.hash = hash
+
+    @classmethod
+    def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["ArchiveInfo"]:
+        if d is None:
+            return None
+        return cls(hash=_get(d, str, "hash"))
+
+    def _to_dict(self) -> Dict[str, Any]:
+        return _filter_none(hash=self.hash)
+
+
+class DirInfo:
+    name = "dir_info"
+
+    def __init__(
+        self,
+        editable: bool = False,
+    ) -> None:
+        self.editable = editable
+
+    @classmethod
+    def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["DirInfo"]:
+        if d is None:
+            return None
+        return cls(editable=_get_required(d, bool, "editable", default=False))
+
+    def _to_dict(self) -> Dict[str, Any]:
+        return _filter_none(editable=self.editable or None)
+
+
+InfoType = Union[ArchiveInfo, DirInfo, VcsInfo]
+
+
+class DirectUrl:
+    def __init__(
+        self,
+        url: str,
+        info: InfoType,
+        subdirectory: Optional[str] = None,
+    ) -> None:
+        self.url = url
+        self.info = info
+        self.subdirectory = subdirectory
+
+    def _remove_auth_from_netloc(self, netloc: str) -> str:
+        if "@" not in netloc:
+            return netloc
+        user_pass, netloc_no_user_pass = netloc.split("@", 1)
+        if (
+            isinstance(self.info, VcsInfo)
+            and self.info.vcs == "git"
+            and user_pass == "git"
+        ):
+            return netloc
+        if ENV_VAR_RE.match(user_pass):
+            return netloc
+        return netloc_no_user_pass
+
+    @property
+    def redacted_url(self) -> str:
+        """url with user:password part removed unless it is formed with
+        environment variables as specified in PEP 610, or it is ``git``
+        in the case of a git URL.
+        """
+        purl = urllib.parse.urlsplit(self.url)
+        netloc = self._remove_auth_from_netloc(purl.netloc)
+        surl = urllib.parse.urlunsplit(
+            (purl.scheme, netloc, purl.path, purl.query, purl.fragment)
+        )
+        return surl
+
+    def validate(self) -> None:
+        self.from_dict(self.to_dict())
+
+    @classmethod
+    def from_dict(cls, d: Dict[str, Any]) -> "DirectUrl":
+        return DirectUrl(
+            url=_get_required(d, str, "url"),
+            subdirectory=_get(d, str, "subdirectory"),
+            info=_exactly_one_of(
+                [
+                    ArchiveInfo._from_dict(_get(d, dict, "archive_info")),
+                    DirInfo._from_dict(_get(d, dict, "dir_info")),
+                    VcsInfo._from_dict(_get(d, dict, "vcs_info")),
+                ]
+            ),
+        )
+
+    def to_dict(self) -> Dict[str, Any]:
+        res = _filter_none(
+            url=self.redacted_url,
+            subdirectory=self.subdirectory,
+        )
+        res[self.info.name] = self.info._to_dict()
+        return res
+
+    @classmethod
+    def from_json(cls, s: str) -> "DirectUrl":
+        return cls.from_dict(json.loads(s))
+
+    def to_json(self) -> str:
+        return json.dumps(self.to_dict(), sort_keys=True)
+
+    def is_local_editable(self) -> bool:
+        return isinstance(self.info, DirInfo) and self.info.editable
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/format_control.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/format_control.py
new file mode 100644
index 0000000..db3995e
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/format_control.py
@@ -0,0 +1,80 @@
+from typing import FrozenSet, Optional, Set
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.exceptions import CommandError
+
+
+class FormatControl:
+    """Helper for managing formats from which a package can be installed."""
+
+    __slots__ = ["no_binary", "only_binary"]
+
+    def __init__(
+        self,
+        no_binary: Optional[Set[str]] = None,
+        only_binary: Optional[Set[str]] = None,
+    ) -> None:
+        if no_binary is None:
+            no_binary = set()
+        if only_binary is None:
+            only_binary = set()
+
+        self.no_binary = no_binary
+        self.only_binary = only_binary
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, self.__class__):
+            return NotImplemented
+
+        if self.__slots__ != other.__slots__:
+            return False
+
+        return all(getattr(self, k) == getattr(other, k) for k in self.__slots__)
+
+    def __repr__(self) -> str:
+        return "{}({}, {})".format(
+            self.__class__.__name__, self.no_binary, self.only_binary
+        )
+
+    @staticmethod
+    def handle_mutual_excludes(value: str, target: Set[str], other: Set[str]) -> None:
+        if value.startswith("-"):
+            raise CommandError(
+                "--no-binary / --only-binary option requires 1 argument."
+            )
+        new = value.split(",")
+        while ":all:" in new:
+            other.clear()
+            target.clear()
+            target.add(":all:")
+            del new[: new.index(":all:") + 1]
+            # Without a none, we want to discard everything as :all: covers it
+            if ":none:" not in new:
+                return
+        for name in new:
+            if name == ":none:":
+                target.clear()
+                continue
+            name = canonicalize_name(name)
+            other.discard(name)
+            target.add(name)
+
+    def get_allowed_formats(self, canonical_name: str) -> FrozenSet[str]:
+        result = {"binary", "source"}
+        if canonical_name in self.only_binary:
+            result.discard("source")
+        elif canonical_name in self.no_binary:
+            result.discard("binary")
+        elif ":all:" in self.only_binary:
+            result.discard("source")
+        elif ":all:" in self.no_binary:
+            result.discard("binary")
+        return frozenset(result)
+
+    def disallow_binaries(self) -> None:
+        self.handle_mutual_excludes(
+            ":all:",
+            self.no_binary,
+            self.only_binary,
+        )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/index.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/index.py
new file mode 100644
index 0000000..b94c325
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/index.py
@@ -0,0 +1,28 @@
+import urllib.parse
+
+
+class PackageIndex:
+    """Represents a Package Index and provides easier access to endpoints"""
+
+    __slots__ = ["url", "netloc", "simple_url", "pypi_url", "file_storage_domain"]
+
+    def __init__(self, url: str, file_storage_domain: str) -> None:
+        super().__init__()
+        self.url = url
+        self.netloc = urllib.parse.urlsplit(url).netloc
+        self.simple_url = self._url_for_path("simple")
+        self.pypi_url = self._url_for_path("pypi")
+
+        # This is part of a temporary hack used to block installs of PyPI
+        # packages which depend on external urls only necessary until PyPI can
+        # block such packages themselves
+        self.file_storage_domain = file_storage_domain
+
+    def _url_for_path(self, path: str) -> str:
+        return urllib.parse.urljoin(self.url, path)
+
+
+PyPI = PackageIndex("https://pypi.org/", file_storage_domain="files.pythonhosted.org")
+TestPyPI = PackageIndex(
+    "https://test.pypi.org/", file_storage_domain="test-files.pythonhosted.org"
+)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/link.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/link.py
new file mode 100644
index 0000000..6069b27
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/link.py
@@ -0,0 +1,288 @@
+import functools
+import logging
+import os
+import posixpath
+import re
+import urllib.parse
+from typing import TYPE_CHECKING, Dict, List, NamedTuple, Optional, Tuple, Union
+
+from pip._internal.utils.filetypes import WHEEL_EXTENSION
+from pip._internal.utils.hashes import Hashes
+from pip._internal.utils.misc import (
+    redact_auth_from_url,
+    split_auth_from_netloc,
+    splitext,
+)
+from pip._internal.utils.models import KeyBasedCompareMixin
+from pip._internal.utils.urls import path_to_url, url_to_path
+
+if TYPE_CHECKING:
+    from pip._internal.index.collector import HTMLPage
+
+logger = logging.getLogger(__name__)
+
+
+_SUPPORTED_HASHES = ("sha1", "sha224", "sha384", "sha256", "sha512", "md5")
+
+
+class Link(KeyBasedCompareMixin):
+    """Represents a parsed link from a Package Index's simple URL"""
+
+    __slots__ = [
+        "_parsed_url",
+        "_url",
+        "comes_from",
+        "requires_python",
+        "yanked_reason",
+        "cache_link_parsing",
+    ]
+
+    def __init__(
+        self,
+        url: str,
+        comes_from: Optional[Union[str, "HTMLPage"]] = None,
+        requires_python: Optional[str] = None,
+        yanked_reason: Optional[str] = None,
+        cache_link_parsing: bool = True,
+    ) -> None:
+        """
+        :param url: url of the resource pointed to (href of the link)
+        :param comes_from: instance of HTMLPage where the link was found,
+            or string.
+        :param requires_python: String containing the `Requires-Python`
+            metadata field, specified in PEP 345. This may be specified by
+            a data-requires-python attribute in the HTML link tag, as
+            described in PEP 503.
+        :param yanked_reason: the reason the file has been yanked, if the
+            file has been yanked, or None if the file hasn't been yanked.
+            This is the value of the "data-yanked" attribute, if present, in
+            a simple repository HTML link. If the file has been yanked but
+            no reason was provided, this should be the empty string. See
+            PEP 592 for more information and the specification.
+        :param cache_link_parsing: A flag that is used elsewhere to determine
+                                   whether resources retrieved from this link
+                                   should be cached. PyPI index urls should
+                                   generally have this set to False, for
+                                   example.
+        """
+
+        # url can be a UNC windows share
+        if url.startswith("\\\\"):
+            url = path_to_url(url)
+
+        self._parsed_url = urllib.parse.urlsplit(url)
+        # Store the url as a private attribute to prevent accidentally
+        # trying to set a new value.
+        self._url = url
+
+        self.comes_from = comes_from
+        self.requires_python = requires_python if requires_python else None
+        self.yanked_reason = yanked_reason
+
+        super().__init__(key=url, defining_class=Link)
+
+        self.cache_link_parsing = cache_link_parsing
+
+    def __str__(self) -> str:
+        if self.requires_python:
+            rp = f" (requires-python:{self.requires_python})"
+        else:
+            rp = ""
+        if self.comes_from:
+            return "{} (from {}){}".format(
+                redact_auth_from_url(self._url), self.comes_from, rp
+            )
+        else:
+            return redact_auth_from_url(str(self._url))
+
+    def __repr__(self) -> str:
+        return f""
+
+    @property
+    def url(self) -> str:
+        return self._url
+
+    @property
+    def filename(self) -> str:
+        path = self.path.rstrip("/")
+        name = posixpath.basename(path)
+        if not name:
+            # Make sure we don't leak auth information if the netloc
+            # includes a username and password.
+            netloc, user_pass = split_auth_from_netloc(self.netloc)
+            return netloc
+
+        name = urllib.parse.unquote(name)
+        assert name, f"URL {self._url!r} produced no filename"
+        return name
+
+    @property
+    def file_path(self) -> str:
+        return url_to_path(self.url)
+
+    @property
+    def scheme(self) -> str:
+        return self._parsed_url.scheme
+
+    @property
+    def netloc(self) -> str:
+        """
+        This can contain auth information.
+        """
+        return self._parsed_url.netloc
+
+    @property
+    def path(self) -> str:
+        return urllib.parse.unquote(self._parsed_url.path)
+
+    def splitext(self) -> Tuple[str, str]:
+        return splitext(posixpath.basename(self.path.rstrip("/")))
+
+    @property
+    def ext(self) -> str:
+        return self.splitext()[1]
+
+    @property
+    def url_without_fragment(self) -> str:
+        scheme, netloc, path, query, fragment = self._parsed_url
+        return urllib.parse.urlunsplit((scheme, netloc, path, query, ""))
+
+    _egg_fragment_re = re.compile(r"[#&]egg=([^&]*)")
+
+    @property
+    def egg_fragment(self) -> Optional[str]:
+        match = self._egg_fragment_re.search(self._url)
+        if not match:
+            return None
+        return match.group(1)
+
+    _subdirectory_fragment_re = re.compile(r"[#&]subdirectory=([^&]*)")
+
+    @property
+    def subdirectory_fragment(self) -> Optional[str]:
+        match = self._subdirectory_fragment_re.search(self._url)
+        if not match:
+            return None
+        return match.group(1)
+
+    _hash_re = re.compile(
+        r"({choices})=([a-f0-9]+)".format(choices="|".join(_SUPPORTED_HASHES))
+    )
+
+    @property
+    def hash(self) -> Optional[str]:
+        match = self._hash_re.search(self._url)
+        if match:
+            return match.group(2)
+        return None
+
+    @property
+    def hash_name(self) -> Optional[str]:
+        match = self._hash_re.search(self._url)
+        if match:
+            return match.group(1)
+        return None
+
+    @property
+    def show_url(self) -> str:
+        return posixpath.basename(self._url.split("#", 1)[0].split("?", 1)[0])
+
+    @property
+    def is_file(self) -> bool:
+        return self.scheme == "file"
+
+    def is_existing_dir(self) -> bool:
+        return self.is_file and os.path.isdir(self.file_path)
+
+    @property
+    def is_wheel(self) -> bool:
+        return self.ext == WHEEL_EXTENSION
+
+    @property
+    def is_vcs(self) -> bool:
+        from pip._internal.vcs import vcs
+
+        return self.scheme in vcs.all_schemes
+
+    @property
+    def is_yanked(self) -> bool:
+        return self.yanked_reason is not None
+
+    @property
+    def has_hash(self) -> bool:
+        return self.hash_name is not None
+
+    def is_hash_allowed(self, hashes: Optional[Hashes]) -> bool:
+        """
+        Return True if the link has a hash and it is allowed.
+        """
+        if hashes is None or not self.has_hash:
+            return False
+        # Assert non-None so mypy knows self.hash_name and self.hash are str.
+        assert self.hash_name is not None
+        assert self.hash is not None
+
+        return hashes.is_hash_allowed(self.hash_name, hex_digest=self.hash)
+
+
+class _CleanResult(NamedTuple):
+    """Convert link for equivalency check.
+
+    This is used in the resolver to check whether two URL-specified requirements
+    likely point to the same distribution and can be considered equivalent. This
+    equivalency logic avoids comparing URLs literally, which can be too strict
+    (e.g. "a=1&b=2" vs "b=2&a=1") and produce conflicts unexpecting to users.
+
+    Currently this does three things:
+
+    1. Drop the basic auth part. This is technically wrong since a server can
+       serve different content based on auth, but if it does that, it is even
+       impossible to guarantee two URLs without auth are equivalent, since
+       the user can input different auth information when prompted. So the
+       practical solution is to assume the auth doesn't affect the response.
+    2. Parse the query to avoid the ordering issue. Note that ordering under the
+       same key in the query are NOT cleaned; i.e. "a=1&a=2" and "a=2&a=1" are
+       still considered different.
+    3. Explicitly drop most of the fragment part, except ``subdirectory=`` and
+       hash values, since it should have no impact the downloaded content. Note
+       that this drops the "egg=" part historically used to denote the requested
+       project (and extras), which is wrong in the strictest sense, but too many
+       people are supplying it inconsistently to cause superfluous resolution
+       conflicts, so we choose to also ignore them.
+    """
+
+    parsed: urllib.parse.SplitResult
+    query: Dict[str, List[str]]
+    subdirectory: str
+    hashes: Dict[str, str]
+
+
+def _clean_link(link: Link) -> _CleanResult:
+    parsed = link._parsed_url
+    netloc = parsed.netloc.rsplit("@", 1)[-1]
+    # According to RFC 8089, an empty host in file: means localhost.
+    if parsed.scheme == "file" and not netloc:
+        netloc = "localhost"
+    fragment = urllib.parse.parse_qs(parsed.fragment)
+    if "egg" in fragment:
+        logger.debug("Ignoring egg= fragment in %s", link)
+    try:
+        # If there are multiple subdirectory values, use the first one.
+        # This matches the behavior of Link.subdirectory_fragment.
+        subdirectory = fragment["subdirectory"][0]
+    except (IndexError, KeyError):
+        subdirectory = ""
+    # If there are multiple hash values under the same algorithm, use the
+    # first one. This matches the behavior of Link.hash_value.
+    hashes = {k: fragment[k][0] for k in _SUPPORTED_HASHES if k in fragment}
+    return _CleanResult(
+        parsed=parsed._replace(netloc=netloc, query="", fragment=""),
+        query=urllib.parse.parse_qs(parsed.query),
+        subdirectory=subdirectory,
+        hashes=hashes,
+    )
+
+
+@functools.lru_cache(maxsize=None)
+def links_equivalent(link1: Link, link2: Link) -> bool:
+    return _clean_link(link1) == _clean_link(link2)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/scheme.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/scheme.py
new file mode 100644
index 0000000..f51190a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/scheme.py
@@ -0,0 +1,31 @@
+"""
+For types associated with installation schemes.
+
+For a general overview of available schemes and their context, see
+https://docs.python.org/3/install/index.html#alternate-installation.
+"""
+
+
+SCHEME_KEYS = ["platlib", "purelib", "headers", "scripts", "data"]
+
+
+class Scheme:
+    """A Scheme holds paths which are used as the base directories for
+    artifacts associated with a Python package.
+    """
+
+    __slots__ = SCHEME_KEYS
+
+    def __init__(
+        self,
+        platlib: str,
+        purelib: str,
+        headers: str,
+        scripts: str,
+        data: str,
+    ) -> None:
+        self.platlib = platlib
+        self.purelib = purelib
+        self.headers = headers
+        self.scripts = scripts
+        self.data = data
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/search_scope.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/search_scope.py
new file mode 100644
index 0000000..e4e54c2
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/search_scope.py
@@ -0,0 +1,129 @@
+import itertools
+import logging
+import os
+import posixpath
+import urllib.parse
+from typing import List
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.models.index import PyPI
+from pip._internal.utils.compat import has_tls
+from pip._internal.utils.misc import normalize_path, redact_auth_from_url
+
+logger = logging.getLogger(__name__)
+
+
+class SearchScope:
+
+    """
+    Encapsulates the locations that pip is configured to search.
+    """
+
+    __slots__ = ["find_links", "index_urls"]
+
+    @classmethod
+    def create(
+        cls,
+        find_links: List[str],
+        index_urls: List[str],
+    ) -> "SearchScope":
+        """
+        Create a SearchScope object after normalizing the `find_links`.
+        """
+        # Build find_links. If an argument starts with ~, it may be
+        # a local file relative to a home directory. So try normalizing
+        # it and if it exists, use the normalized version.
+        # This is deliberately conservative - it might be fine just to
+        # blindly normalize anything starting with a ~...
+        built_find_links: List[str] = []
+        for link in find_links:
+            if link.startswith("~"):
+                new_link = normalize_path(link)
+                if os.path.exists(new_link):
+                    link = new_link
+            built_find_links.append(link)
+
+        # If we don't have TLS enabled, then WARN if anyplace we're looking
+        # relies on TLS.
+        if not has_tls():
+            for link in itertools.chain(index_urls, built_find_links):
+                parsed = urllib.parse.urlparse(link)
+                if parsed.scheme == "https":
+                    logger.warning(
+                        "pip is configured with locations that require "
+                        "TLS/SSL, however the ssl module in Python is not "
+                        "available."
+                    )
+                    break
+
+        return cls(
+            find_links=built_find_links,
+            index_urls=index_urls,
+        )
+
+    def __init__(
+        self,
+        find_links: List[str],
+        index_urls: List[str],
+    ) -> None:
+        self.find_links = find_links
+        self.index_urls = index_urls
+
+    def get_formatted_locations(self) -> str:
+        lines = []
+        redacted_index_urls = []
+        if self.index_urls and self.index_urls != [PyPI.simple_url]:
+            for url in self.index_urls:
+
+                redacted_index_url = redact_auth_from_url(url)
+
+                # Parse the URL
+                purl = urllib.parse.urlsplit(redacted_index_url)
+
+                # URL is generally invalid if scheme and netloc is missing
+                # there are issues with Python and URL parsing, so this test
+                # is a bit crude. See bpo-20271, bpo-23505. Python doesn't
+                # always parse invalid URLs correctly - it should raise
+                # exceptions for malformed URLs
+                if not purl.scheme and not purl.netloc:
+                    logger.warning(
+                        'The index url "%s" seems invalid, please provide a scheme.',
+                        redacted_index_url,
+                    )
+
+                redacted_index_urls.append(redacted_index_url)
+
+            lines.append(
+                "Looking in indexes: {}".format(", ".join(redacted_index_urls))
+            )
+
+        if self.find_links:
+            lines.append(
+                "Looking in links: {}".format(
+                    ", ".join(redact_auth_from_url(url) for url in self.find_links)
+                )
+            )
+        return "\n".join(lines)
+
+    def get_index_urls_locations(self, project_name: str) -> List[str]:
+        """Returns the locations found via self.index_urls
+
+        Checks the url_name on the main (first in the list) index and
+        use this url_name to produce all locations
+        """
+
+        def mkurl_pypi_url(url: str) -> str:
+            loc = posixpath.join(
+                url, urllib.parse.quote(canonicalize_name(project_name))
+            )
+            # For maximum compatibility with easy_install, ensure the path
+            # ends in a trailing slash.  Although this isn't in the spec
+            # (and PyPI can handle it without the slash) some other index
+            # implementations might break if they relied on easy_install's
+            # behavior.
+            if not loc.endswith("/"):
+                loc = loc + "/"
+            return loc
+
+        return [mkurl_pypi_url(url) for url in self.index_urls]
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/selection_prefs.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/selection_prefs.py
new file mode 100644
index 0000000..977bc4c
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/selection_prefs.py
@@ -0,0 +1,51 @@
+from typing import Optional
+
+from pip._internal.models.format_control import FormatControl
+
+
+class SelectionPreferences:
+    """
+    Encapsulates the candidate selection preferences for downloading
+    and installing files.
+    """
+
+    __slots__ = [
+        "allow_yanked",
+        "allow_all_prereleases",
+        "format_control",
+        "prefer_binary",
+        "ignore_requires_python",
+    ]
+
+    # Don't include an allow_yanked default value to make sure each call
+    # site considers whether yanked releases are allowed. This also causes
+    # that decision to be made explicit in the calling code, which helps
+    # people when reading the code.
+    def __init__(
+        self,
+        allow_yanked: bool,
+        allow_all_prereleases: bool = False,
+        format_control: Optional[FormatControl] = None,
+        prefer_binary: bool = False,
+        ignore_requires_python: Optional[bool] = None,
+    ) -> None:
+        """Create a SelectionPreferences object.
+
+        :param allow_yanked: Whether files marked as yanked (in the sense
+            of PEP 592) are permitted to be candidates for install.
+        :param format_control: A FormatControl object or None. Used to control
+            the selection of source packages / binary packages when consulting
+            the index and links.
+        :param prefer_binary: Whether to prefer an old, but valid, binary
+            dist over a new source dist.
+        :param ignore_requires_python: Whether to ignore incompatible
+            "Requires-Python" values in links. Defaults to False.
+        """
+        if ignore_requires_python is None:
+            ignore_requires_python = False
+
+        self.allow_yanked = allow_yanked
+        self.allow_all_prereleases = allow_all_prereleases
+        self.format_control = format_control
+        self.prefer_binary = prefer_binary
+        self.ignore_requires_python = ignore_requires_python
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/target_python.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/target_python.py
new file mode 100644
index 0000000..744bd7e
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/target_python.py
@@ -0,0 +1,110 @@
+import sys
+from typing import List, Optional, Tuple
+
+from pip._vendor.packaging.tags import Tag
+
+from pip._internal.utils.compatibility_tags import get_supported, version_info_to_nodot
+from pip._internal.utils.misc import normalize_version_info
+
+
+class TargetPython:
+
+    """
+    Encapsulates the properties of a Python interpreter one is targeting
+    for a package install, download, etc.
+    """
+
+    __slots__ = [
+        "_given_py_version_info",
+        "abis",
+        "implementation",
+        "platforms",
+        "py_version",
+        "py_version_info",
+        "_valid_tags",
+    ]
+
+    def __init__(
+        self,
+        platforms: Optional[List[str]] = None,
+        py_version_info: Optional[Tuple[int, ...]] = None,
+        abis: Optional[List[str]] = None,
+        implementation: Optional[str] = None,
+    ) -> None:
+        """
+        :param platforms: A list of strings or None. If None, searches for
+            packages that are supported by the current system. Otherwise, will
+            find packages that can be built on the platforms passed in. These
+            packages will only be downloaded for distribution: they will
+            not be built locally.
+        :param py_version_info: An optional tuple of ints representing the
+            Python version information to use (e.g. `sys.version_info[:3]`).
+            This can have length 1, 2, or 3 when provided.
+        :param abis: A list of strings or None. This is passed to
+            compatibility_tags.py's get_supported() function as is.
+        :param implementation: A string or None. This is passed to
+            compatibility_tags.py's get_supported() function as is.
+        """
+        # Store the given py_version_info for when we call get_supported().
+        self._given_py_version_info = py_version_info
+
+        if py_version_info is None:
+            py_version_info = sys.version_info[:3]
+        else:
+            py_version_info = normalize_version_info(py_version_info)
+
+        py_version = ".".join(map(str, py_version_info[:2]))
+
+        self.abis = abis
+        self.implementation = implementation
+        self.platforms = platforms
+        self.py_version = py_version
+        self.py_version_info = py_version_info
+
+        # This is used to cache the return value of get_tags().
+        self._valid_tags: Optional[List[Tag]] = None
+
+    def format_given(self) -> str:
+        """
+        Format the given, non-None attributes for display.
+        """
+        display_version = None
+        if self._given_py_version_info is not None:
+            display_version = ".".join(
+                str(part) for part in self._given_py_version_info
+            )
+
+        key_values = [
+            ("platforms", self.platforms),
+            ("version_info", display_version),
+            ("abis", self.abis),
+            ("implementation", self.implementation),
+        ]
+        return " ".join(
+            f"{key}={value!r}" for key, value in key_values if value is not None
+        )
+
+    def get_tags(self) -> List[Tag]:
+        """
+        Return the supported PEP 425 tags to check wheel candidates against.
+
+        The tags are returned in order of preference (most preferred first).
+        """
+        if self._valid_tags is None:
+            # Pass versions=None if no py_version_info was given since
+            # versions=None uses special default logic.
+            py_version_info = self._given_py_version_info
+            if py_version_info is None:
+                version = None
+            else:
+                version = version_info_to_nodot(py_version_info)
+
+            tags = get_supported(
+                version=version,
+                platforms=self.platforms,
+                abis=self.abis,
+                impl=self.implementation,
+            )
+            self._valid_tags = tags
+
+        return self._valid_tags
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/models/wheel.py b/utils/python-venv/Lib/site-packages/pip/_internal/models/wheel.py
new file mode 100644
index 0000000..e091612
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/models/wheel.py
@@ -0,0 +1,89 @@
+"""Represents a wheel file and provides access to the various parts of the
+name that have meaning.
+"""
+import re
+from typing import Dict, Iterable, List
+
+from pip._vendor.packaging.tags import Tag
+
+from pip._internal.exceptions import InvalidWheelFilename
+
+
+class Wheel:
+    """A wheel file"""
+
+    wheel_file_re = re.compile(
+        r"""^(?P(?P.+?)-(?P.*?))
+        ((-(?P\d[^-]*?))?-(?P.+?)-(?P.+?)-(?P.+?)
+        \.whl|\.dist-info)$""",
+        re.VERBOSE,
+    )
+
+    def __init__(self, filename: str) -> None:
+        """
+        :raises InvalidWheelFilename: when the filename is invalid for a wheel
+        """
+        wheel_info = self.wheel_file_re.match(filename)
+        if not wheel_info:
+            raise InvalidWheelFilename(f"{filename} is not a valid wheel filename.")
+        self.filename = filename
+        self.name = wheel_info.group("name").replace("_", "-")
+        # we'll assume "_" means "-" due to wheel naming scheme
+        # (https://github.com/pypa/pip/issues/1150)
+        self.version = wheel_info.group("ver").replace("_", "-")
+        self.build_tag = wheel_info.group("build")
+        self.pyversions = wheel_info.group("pyver").split(".")
+        self.abis = wheel_info.group("abi").split(".")
+        self.plats = wheel_info.group("plat").split(".")
+
+        # All the tag combinations from this file
+        self.file_tags = {
+            Tag(x, y, z) for x in self.pyversions for y in self.abis for z in self.plats
+        }
+
+    def get_formatted_file_tags(self) -> List[str]:
+        """Return the wheel's tags as a sorted list of strings."""
+        return sorted(str(tag) for tag in self.file_tags)
+
+    def support_index_min(self, tags: List[Tag]) -> int:
+        """Return the lowest index that one of the wheel's file_tag combinations
+        achieves in the given list of supported tags.
+
+        For example, if there are 8 supported tags and one of the file tags
+        is first in the list, then return 0.
+
+        :param tags: the PEP 425 tags to check the wheel against, in order
+            with most preferred first.
+
+        :raises ValueError: If none of the wheel's file tags match one of
+            the supported tags.
+        """
+        return min(tags.index(tag) for tag in self.file_tags if tag in tags)
+
+    def find_most_preferred_tag(
+        self, tags: List[Tag], tag_to_priority: Dict[Tag, int]
+    ) -> int:
+        """Return the priority of the most preferred tag that one of the wheel's file
+        tag combinations achieves in the given list of supported tags using the given
+        tag_to_priority mapping, where lower priorities are more-preferred.
+
+        This is used in place of support_index_min in some cases in order to avoid
+        an expensive linear scan of a large list of tags.
+
+        :param tags: the PEP 425 tags to check the wheel against.
+        :param tag_to_priority: a mapping from tag to priority of that tag, where
+            lower is more preferred.
+
+        :raises ValueError: If none of the wheel's file tags match one of
+            the supported tags.
+        """
+        return min(
+            tag_to_priority[tag] for tag in self.file_tags if tag in tag_to_priority
+        )
+
+    def supported(self, tags: Iterable[Tag]) -> bool:
+        """Return whether the wheel is compatible with one of the given tags.
+
+        :param tags: the PEP 425 tags to check the wheel against.
+        """
+        return not self.file_tags.isdisjoint(tags)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/network/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/network/__init__.py
new file mode 100644
index 0000000..b51bde9
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/network/__init__.py
@@ -0,0 +1,2 @@
+"""Contains purely network-related utilities.
+"""
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/network/auth.py b/utils/python-venv/Lib/site-packages/pip/_internal/network/auth.py
new file mode 100644
index 0000000..ca42798
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/network/auth.py
@@ -0,0 +1,323 @@
+"""Network Authentication Helpers
+
+Contains interface (MultiDomainBasicAuth) and associated glue code for
+providing credentials in the context of network requests.
+"""
+
+import urllib.parse
+from typing import Any, Dict, List, Optional, Tuple
+
+from pip._vendor.requests.auth import AuthBase, HTTPBasicAuth
+from pip._vendor.requests.models import Request, Response
+from pip._vendor.requests.utils import get_netrc_auth
+
+from pip._internal.utils.logging import getLogger
+from pip._internal.utils.misc import (
+    ask,
+    ask_input,
+    ask_password,
+    remove_auth_from_url,
+    split_auth_netloc_from_url,
+)
+from pip._internal.vcs.versioncontrol import AuthInfo
+
+logger = getLogger(__name__)
+
+Credentials = Tuple[str, str, str]
+
+try:
+    import keyring
+except ImportError:
+    keyring = None  # type: ignore[assignment]
+except Exception as exc:
+    logger.warning(
+        "Keyring is skipped due to an exception: %s",
+        str(exc),
+    )
+    keyring = None  # type: ignore[assignment]
+
+
+def get_keyring_auth(url: Optional[str], username: Optional[str]) -> Optional[AuthInfo]:
+    """Return the tuple auth for a given url from keyring."""
+    global keyring
+    if not url or not keyring:
+        return None
+
+    try:
+        try:
+            get_credential = keyring.get_credential
+        except AttributeError:
+            pass
+        else:
+            logger.debug("Getting credentials from keyring for %s", url)
+            cred = get_credential(url, username)
+            if cred is not None:
+                return cred.username, cred.password
+            return None
+
+        if username:
+            logger.debug("Getting password from keyring for %s", url)
+            password = keyring.get_password(url, username)
+            if password:
+                return username, password
+
+    except Exception as exc:
+        logger.warning(
+            "Keyring is skipped due to an exception: %s",
+            str(exc),
+        )
+        keyring = None  # type: ignore[assignment]
+    return None
+
+
+class MultiDomainBasicAuth(AuthBase):
+    def __init__(
+        self, prompting: bool = True, index_urls: Optional[List[str]] = None
+    ) -> None:
+        self.prompting = prompting
+        self.index_urls = index_urls
+        self.passwords: Dict[str, AuthInfo] = {}
+        # When the user is prompted to enter credentials and keyring is
+        # available, we will offer to save them. If the user accepts,
+        # this value is set to the credentials they entered. After the
+        # request authenticates, the caller should call
+        # ``save_credentials`` to save these.
+        self._credentials_to_save: Optional[Credentials] = None
+
+    def _get_index_url(self, url: str) -> Optional[str]:
+        """Return the original index URL matching the requested URL.
+
+        Cached or dynamically generated credentials may work against
+        the original index URL rather than just the netloc.
+
+        The provided url should have had its username and password
+        removed already. If the original index url had credentials then
+        they will be included in the return value.
+
+        Returns None if no matching index was found, or if --no-index
+        was specified by the user.
+        """
+        if not url or not self.index_urls:
+            return None
+
+        for u in self.index_urls:
+            prefix = remove_auth_from_url(u).rstrip("/") + "/"
+            if url.startswith(prefix):
+                return u
+        return None
+
+    def _get_new_credentials(
+        self,
+        original_url: str,
+        allow_netrc: bool = True,
+        allow_keyring: bool = False,
+    ) -> AuthInfo:
+        """Find and return credentials for the specified URL."""
+        # Split the credentials and netloc from the url.
+        url, netloc, url_user_password = split_auth_netloc_from_url(
+            original_url,
+        )
+
+        # Start with the credentials embedded in the url
+        username, password = url_user_password
+        if username is not None and password is not None:
+            logger.debug("Found credentials in url for %s", netloc)
+            return url_user_password
+
+        # Find a matching index url for this request
+        index_url = self._get_index_url(url)
+        if index_url:
+            # Split the credentials from the url.
+            index_info = split_auth_netloc_from_url(index_url)
+            if index_info:
+                index_url, _, index_url_user_password = index_info
+                logger.debug("Found index url %s", index_url)
+
+        # If an index URL was found, try its embedded credentials
+        if index_url and index_url_user_password[0] is not None:
+            username, password = index_url_user_password
+            if username is not None and password is not None:
+                logger.debug("Found credentials in index url for %s", netloc)
+                return index_url_user_password
+
+        # Get creds from netrc if we still don't have them
+        if allow_netrc:
+            netrc_auth = get_netrc_auth(original_url)
+            if netrc_auth:
+                logger.debug("Found credentials in netrc for %s", netloc)
+                return netrc_auth
+
+        # If we don't have a password and keyring is available, use it.
+        if allow_keyring:
+            # The index url is more specific than the netloc, so try it first
+            # fmt: off
+            kr_auth = (
+                get_keyring_auth(index_url, username) or
+                get_keyring_auth(netloc, username)
+            )
+            # fmt: on
+            if kr_auth:
+                logger.debug("Found credentials in keyring for %s", netloc)
+                return kr_auth
+
+        return username, password
+
+    def _get_url_and_credentials(
+        self, original_url: str
+    ) -> Tuple[str, Optional[str], Optional[str]]:
+        """Return the credentials to use for the provided URL.
+
+        If allowed, netrc and keyring may be used to obtain the
+        correct credentials.
+
+        Returns (url_without_credentials, username, password). Note
+        that even if the original URL contains credentials, this
+        function may return a different username and password.
+        """
+        url, netloc, _ = split_auth_netloc_from_url(original_url)
+
+        # Try to get credentials from original url
+        username, password = self._get_new_credentials(original_url)
+
+        # If credentials not found, use any stored credentials for this netloc.
+        # Do this if either the username or the password is missing.
+        # This accounts for the situation in which the user has specified
+        # the username in the index url, but the password comes from keyring.
+        if (username is None or password is None) and netloc in self.passwords:
+            un, pw = self.passwords[netloc]
+            # It is possible that the cached credentials are for a different username,
+            # in which case the cache should be ignored.
+            if username is None or username == un:
+                username, password = un, pw
+
+        if username is not None or password is not None:
+            # Convert the username and password if they're None, so that
+            # this netloc will show up as "cached" in the conditional above.
+            # Further, HTTPBasicAuth doesn't accept None, so it makes sense to
+            # cache the value that is going to be used.
+            username = username or ""
+            password = password or ""
+
+            # Store any acquired credentials.
+            self.passwords[netloc] = (username, password)
+
+        assert (
+            # Credentials were found
+            (username is not None and password is not None)
+            # Credentials were not found
+            or (username is None and password is None)
+        ), f"Could not load credentials from url: {original_url}"
+
+        return url, username, password
+
+    def __call__(self, req: Request) -> Request:
+        # Get credentials for this request
+        url, username, password = self._get_url_and_credentials(req.url)
+
+        # Set the url of the request to the url without any credentials
+        req.url = url
+
+        if username is not None and password is not None:
+            # Send the basic auth with this request
+            req = HTTPBasicAuth(username, password)(req)
+
+        # Attach a hook to handle 401 responses
+        req.register_hook("response", self.handle_401)
+
+        return req
+
+    # Factored out to allow for easy patching in tests
+    def _prompt_for_password(
+        self, netloc: str
+    ) -> Tuple[Optional[str], Optional[str], bool]:
+        username = ask_input(f"User for {netloc}: ")
+        if not username:
+            return None, None, False
+        auth = get_keyring_auth(netloc, username)
+        if auth and auth[0] is not None and auth[1] is not None:
+            return auth[0], auth[1], False
+        password = ask_password("Password: ")
+        return username, password, True
+
+    # Factored out to allow for easy patching in tests
+    def _should_save_password_to_keyring(self) -> bool:
+        if not keyring:
+            return False
+        return ask("Save credentials to keyring [y/N]: ", ["y", "n"]) == "y"
+
+    def handle_401(self, resp: Response, **kwargs: Any) -> Response:
+        # We only care about 401 responses, anything else we want to just
+        #   pass through the actual response
+        if resp.status_code != 401:
+            return resp
+
+        # We are not able to prompt the user so simply return the response
+        if not self.prompting:
+            return resp
+
+        parsed = urllib.parse.urlparse(resp.url)
+
+        # Query the keyring for credentials:
+        username, password = self._get_new_credentials(
+            resp.url,
+            allow_netrc=False,
+            allow_keyring=True,
+        )
+
+        # Prompt the user for a new username and password
+        save = False
+        if not username and not password:
+            username, password, save = self._prompt_for_password(parsed.netloc)
+
+        # Store the new username and password to use for future requests
+        self._credentials_to_save = None
+        if username is not None and password is not None:
+            self.passwords[parsed.netloc] = (username, password)
+
+            # Prompt to save the password to keyring
+            if save and self._should_save_password_to_keyring():
+                self._credentials_to_save = (parsed.netloc, username, password)
+
+        # Consume content and release the original connection to allow our new
+        #   request to reuse the same one.
+        resp.content
+        resp.raw.release_conn()
+
+        # Add our new username and password to the request
+        req = HTTPBasicAuth(username or "", password or "")(resp.request)
+        req.register_hook("response", self.warn_on_401)
+
+        # On successful request, save the credentials that were used to
+        # keyring. (Note that if the user responded "no" above, this member
+        # is not set and nothing will be saved.)
+        if self._credentials_to_save:
+            req.register_hook("response", self.save_credentials)
+
+        # Send our new request
+        new_resp = resp.connection.send(req, **kwargs)
+        new_resp.history.append(resp)
+
+        return new_resp
+
+    def warn_on_401(self, resp: Response, **kwargs: Any) -> None:
+        """Response callback to warn about incorrect credentials."""
+        if resp.status_code == 401:
+            logger.warning(
+                "401 Error, Credentials not correct for %s",
+                resp.request.url,
+            )
+
+    def save_credentials(self, resp: Response, **kwargs: Any) -> None:
+        """Response callback to save credentials on success."""
+        assert keyring is not None, "should never reach here without keyring"
+        if not keyring:
+            return
+
+        creds = self._credentials_to_save
+        self._credentials_to_save = None
+        if creds and resp.status_code < 400:
+            try:
+                logger.info("Saving credentials to keyring")
+                keyring.set_password(*creds)
+            except Exception:
+                logger.exception("Failed to save credentials")
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/network/cache.py b/utils/python-venv/Lib/site-packages/pip/_internal/network/cache.py
new file mode 100644
index 0000000..2d915e6
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/network/cache.py
@@ -0,0 +1,69 @@
+"""HTTP cache implementation.
+"""
+
+import os
+from contextlib import contextmanager
+from typing import Iterator, Optional
+
+from pip._vendor.cachecontrol.cache import BaseCache
+from pip._vendor.cachecontrol.caches import FileCache
+from pip._vendor.requests.models import Response
+
+from pip._internal.utils.filesystem import adjacent_tmp_file, replace
+from pip._internal.utils.misc import ensure_dir
+
+
+def is_from_cache(response: Response) -> bool:
+    return getattr(response, "from_cache", False)
+
+
+@contextmanager
+def suppressed_cache_errors() -> Iterator[None]:
+    """If we can't access the cache then we can just skip caching and process
+    requests as if caching wasn't enabled.
+    """
+    try:
+        yield
+    except OSError:
+        pass
+
+
+class SafeFileCache(BaseCache):
+    """
+    A file based cache which is safe to use even when the target directory may
+    not be accessible or writable.
+    """
+
+    def __init__(self, directory: str) -> None:
+        assert directory is not None, "Cache directory must not be None."
+        super().__init__()
+        self.directory = directory
+
+    def _get_cache_path(self, name: str) -> str:
+        # From cachecontrol.caches.file_cache.FileCache._fn, brought into our
+        # class for backwards-compatibility and to avoid using a non-public
+        # method.
+        hashed = FileCache.encode(name)
+        parts = list(hashed[:5]) + [hashed]
+        return os.path.join(self.directory, *parts)
+
+    def get(self, key: str) -> Optional[bytes]:
+        path = self._get_cache_path(key)
+        with suppressed_cache_errors():
+            with open(path, "rb") as f:
+                return f.read()
+
+    def set(self, key: str, value: bytes) -> None:
+        path = self._get_cache_path(key)
+        with suppressed_cache_errors():
+            ensure_dir(os.path.dirname(path))
+
+            with adjacent_tmp_file(path) as f:
+                f.write(value)
+
+            replace(f.name, path)
+
+    def delete(self, key: str) -> None:
+        path = self._get_cache_path(key)
+        with suppressed_cache_errors():
+            os.remove(path)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/network/download.py b/utils/python-venv/Lib/site-packages/pip/_internal/network/download.py
new file mode 100644
index 0000000..47af547
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/network/download.py
@@ -0,0 +1,184 @@
+"""Download files with progress indicators.
+"""
+import cgi
+import logging
+import mimetypes
+import os
+from typing import Iterable, Optional, Tuple
+
+from pip._vendor.requests.models import CONTENT_CHUNK_SIZE, Response
+
+from pip._internal.cli.progress_bars import DownloadProgressProvider
+from pip._internal.exceptions import NetworkConnectionError
+from pip._internal.models.index import PyPI
+from pip._internal.models.link import Link
+from pip._internal.network.cache import is_from_cache
+from pip._internal.network.session import PipSession
+from pip._internal.network.utils import HEADERS, raise_for_status, response_chunks
+from pip._internal.utils.misc import format_size, redact_auth_from_url, splitext
+
+logger = logging.getLogger(__name__)
+
+
+def _get_http_response_size(resp: Response) -> Optional[int]:
+    try:
+        return int(resp.headers["content-length"])
+    except (ValueError, KeyError, TypeError):
+        return None
+
+
+def _prepare_download(
+    resp: Response,
+    link: Link,
+    progress_bar: str,
+) -> Iterable[bytes]:
+    total_length = _get_http_response_size(resp)
+
+    if link.netloc == PyPI.file_storage_domain:
+        url = link.show_url
+    else:
+        url = link.url_without_fragment
+
+    logged_url = redact_auth_from_url(url)
+
+    if total_length:
+        logged_url = "{} ({})".format(logged_url, format_size(total_length))
+
+    if is_from_cache(resp):
+        logger.info("Using cached %s", logged_url)
+    else:
+        logger.info("Downloading %s", logged_url)
+
+    if logger.getEffectiveLevel() > logging.INFO:
+        show_progress = False
+    elif is_from_cache(resp):
+        show_progress = False
+    elif not total_length:
+        show_progress = True
+    elif total_length > (40 * 1000):
+        show_progress = True
+    else:
+        show_progress = False
+
+    chunks = response_chunks(resp, CONTENT_CHUNK_SIZE)
+
+    if not show_progress:
+        return chunks
+
+    return DownloadProgressProvider(progress_bar, max=total_length)(chunks)
+
+
+def sanitize_content_filename(filename: str) -> str:
+    """
+    Sanitize the "filename" value from a Content-Disposition header.
+    """
+    return os.path.basename(filename)
+
+
+def parse_content_disposition(content_disposition: str, default_filename: str) -> str:
+    """
+    Parse the "filename" value from a Content-Disposition header, and
+    return the default filename if the result is empty.
+    """
+    _type, params = cgi.parse_header(content_disposition)
+    filename = params.get("filename")
+    if filename:
+        # We need to sanitize the filename to prevent directory traversal
+        # in case the filename contains ".." path parts.
+        filename = sanitize_content_filename(filename)
+    return filename or default_filename
+
+
+def _get_http_response_filename(resp: Response, link: Link) -> str:
+    """Get an ideal filename from the given HTTP response, falling back to
+    the link filename if not provided.
+    """
+    filename = link.filename  # fallback
+    # Have a look at the Content-Disposition header for a better guess
+    content_disposition = resp.headers.get("content-disposition")
+    if content_disposition:
+        filename = parse_content_disposition(content_disposition, filename)
+    ext: Optional[str] = splitext(filename)[1]
+    if not ext:
+        ext = mimetypes.guess_extension(resp.headers.get("content-type", ""))
+        if ext:
+            filename += ext
+    if not ext and link.url != resp.url:
+        ext = os.path.splitext(resp.url)[1]
+        if ext:
+            filename += ext
+    return filename
+
+
+def _http_get_download(session: PipSession, link: Link) -> Response:
+    target_url = link.url.split("#", 1)[0]
+    resp = session.get(target_url, headers=HEADERS, stream=True)
+    raise_for_status(resp)
+    return resp
+
+
+class Downloader:
+    def __init__(
+        self,
+        session: PipSession,
+        progress_bar: str,
+    ) -> None:
+        self._session = session
+        self._progress_bar = progress_bar
+
+    def __call__(self, link: Link, location: str) -> Tuple[str, str]:
+        """Download the file given by link into location."""
+        try:
+            resp = _http_get_download(self._session, link)
+        except NetworkConnectionError as e:
+            assert e.response is not None
+            logger.critical(
+                "HTTP error %s while getting %s", e.response.status_code, link
+            )
+            raise
+
+        filename = _get_http_response_filename(resp, link)
+        filepath = os.path.join(location, filename)
+
+        chunks = _prepare_download(resp, link, self._progress_bar)
+        with open(filepath, "wb") as content_file:
+            for chunk in chunks:
+                content_file.write(chunk)
+        content_type = resp.headers.get("Content-Type", "")
+        return filepath, content_type
+
+
+class BatchDownloader:
+    def __init__(
+        self,
+        session: PipSession,
+        progress_bar: str,
+    ) -> None:
+        self._session = session
+        self._progress_bar = progress_bar
+
+    def __call__(
+        self, links: Iterable[Link], location: str
+    ) -> Iterable[Tuple[Link, Tuple[str, str]]]:
+        """Download the files given by links into location."""
+        for link in links:
+            try:
+                resp = _http_get_download(self._session, link)
+            except NetworkConnectionError as e:
+                assert e.response is not None
+                logger.critical(
+                    "HTTP error %s while getting %s",
+                    e.response.status_code,
+                    link,
+                )
+                raise
+
+            filename = _get_http_response_filename(resp, link)
+            filepath = os.path.join(location, filename)
+
+            chunks = _prepare_download(resp, link, self._progress_bar)
+            with open(filepath, "wb") as content_file:
+                for chunk in chunks:
+                    content_file.write(chunk)
+            content_type = resp.headers.get("Content-Type", "")
+            yield link, (filepath, content_type)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/network/lazy_wheel.py b/utils/python-venv/Lib/site-packages/pip/_internal/network/lazy_wheel.py
new file mode 100644
index 0000000..c9e44d5
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/network/lazy_wheel.py
@@ -0,0 +1,210 @@
+"""Lazy ZIP over HTTP"""
+
+__all__ = ["HTTPRangeRequestUnsupported", "dist_from_wheel_url"]
+
+from bisect import bisect_left, bisect_right
+from contextlib import contextmanager
+from tempfile import NamedTemporaryFile
+from typing import Any, Dict, Iterator, List, Optional, Tuple
+from zipfile import BadZipfile, ZipFile
+
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.requests.models import CONTENT_CHUNK_SIZE, Response
+
+from pip._internal.metadata import BaseDistribution, MemoryWheel, get_wheel_distribution
+from pip._internal.network.session import PipSession
+from pip._internal.network.utils import HEADERS, raise_for_status, response_chunks
+
+
+class HTTPRangeRequestUnsupported(Exception):
+    pass
+
+
+def dist_from_wheel_url(name: str, url: str, session: PipSession) -> BaseDistribution:
+    """Return a distribution object from the given wheel URL.
+
+    This uses HTTP range requests to only fetch the potion of the wheel
+    containing metadata, just enough for the object to be constructed.
+    If such requests are not supported, HTTPRangeRequestUnsupported
+    is raised.
+    """
+    with LazyZipOverHTTP(url, session) as zf:
+        # For read-only ZIP files, ZipFile only needs methods read,
+        # seek, seekable and tell, not the whole IO protocol.
+        wheel = MemoryWheel(zf.name, zf)  # type: ignore
+        # After context manager exit, wheel.name
+        # is an invalid file by intention.
+        return get_wheel_distribution(wheel, canonicalize_name(name))
+
+
+class LazyZipOverHTTP:
+    """File-like object mapped to a ZIP file over HTTP.
+
+    This uses HTTP range requests to lazily fetch the file's content,
+    which is supposed to be fed to ZipFile.  If such requests are not
+    supported by the server, raise HTTPRangeRequestUnsupported
+    during initialization.
+    """
+
+    def __init__(
+        self, url: str, session: PipSession, chunk_size: int = CONTENT_CHUNK_SIZE
+    ) -> None:
+        head = session.head(url, headers=HEADERS)
+        raise_for_status(head)
+        assert head.status_code == 200
+        self._session, self._url, self._chunk_size = session, url, chunk_size
+        self._length = int(head.headers["Content-Length"])
+        self._file = NamedTemporaryFile()
+        self.truncate(self._length)
+        self._left: List[int] = []
+        self._right: List[int] = []
+        if "bytes" not in head.headers.get("Accept-Ranges", "none"):
+            raise HTTPRangeRequestUnsupported("range request is not supported")
+        self._check_zip()
+
+    @property
+    def mode(self) -> str:
+        """Opening mode, which is always rb."""
+        return "rb"
+
+    @property
+    def name(self) -> str:
+        """Path to the underlying file."""
+        return self._file.name
+
+    def seekable(self) -> bool:
+        """Return whether random access is supported, which is True."""
+        return True
+
+    def close(self) -> None:
+        """Close the file."""
+        self._file.close()
+
+    @property
+    def closed(self) -> bool:
+        """Whether the file is closed."""
+        return self._file.closed
+
+    def read(self, size: int = -1) -> bytes:
+        """Read up to size bytes from the object and return them.
+
+        As a convenience, if size is unspecified or -1,
+        all bytes until EOF are returned.  Fewer than
+        size bytes may be returned if EOF is reached.
+        """
+        download_size = max(size, self._chunk_size)
+        start, length = self.tell(), self._length
+        stop = length if size < 0 else min(start + download_size, length)
+        start = max(0, stop - download_size)
+        self._download(start, stop - 1)
+        return self._file.read(size)
+
+    def readable(self) -> bool:
+        """Return whether the file is readable, which is True."""
+        return True
+
+    def seek(self, offset: int, whence: int = 0) -> int:
+        """Change stream position and return the new absolute position.
+
+        Seek to offset relative position indicated by whence:
+        * 0: Start of stream (the default).  pos should be >= 0;
+        * 1: Current position - pos may be negative;
+        * 2: End of stream - pos usually negative.
+        """
+        return self._file.seek(offset, whence)
+
+    def tell(self) -> int:
+        """Return the current position."""
+        return self._file.tell()
+
+    def truncate(self, size: Optional[int] = None) -> int:
+        """Resize the stream to the given size in bytes.
+
+        If size is unspecified resize to the current position.
+        The current stream position isn't changed.
+
+        Return the new file size.
+        """
+        return self._file.truncate(size)
+
+    def writable(self) -> bool:
+        """Return False."""
+        return False
+
+    def __enter__(self) -> "LazyZipOverHTTP":
+        self._file.__enter__()
+        return self
+
+    def __exit__(self, *exc: Any) -> Optional[bool]:
+        return self._file.__exit__(*exc)
+
+    @contextmanager
+    def _stay(self) -> Iterator[None]:
+        """Return a context manager keeping the position.
+
+        At the end of the block, seek back to original position.
+        """
+        pos = self.tell()
+        try:
+            yield
+        finally:
+            self.seek(pos)
+
+    def _check_zip(self) -> None:
+        """Check and download until the file is a valid ZIP."""
+        end = self._length - 1
+        for start in reversed(range(0, end, self._chunk_size)):
+            self._download(start, end)
+            with self._stay():
+                try:
+                    # For read-only ZIP files, ZipFile only needs
+                    # methods read, seek, seekable and tell.
+                    ZipFile(self)  # type: ignore
+                except BadZipfile:
+                    pass
+                else:
+                    break
+
+    def _stream_response(
+        self, start: int, end: int, base_headers: Dict[str, str] = HEADERS
+    ) -> Response:
+        """Return HTTP response to a range request from start to end."""
+        headers = base_headers.copy()
+        headers["Range"] = f"bytes={start}-{end}"
+        # TODO: Get range requests to be correctly cached
+        headers["Cache-Control"] = "no-cache"
+        return self._session.get(self._url, headers=headers, stream=True)
+
+    def _merge(
+        self, start: int, end: int, left: int, right: int
+    ) -> Iterator[Tuple[int, int]]:
+        """Return an iterator of intervals to be fetched.
+
+        Args:
+            start (int): Start of needed interval
+            end (int): End of needed interval
+            left (int): Index of first overlapping downloaded data
+            right (int): Index after last overlapping downloaded data
+        """
+        lslice, rslice = self._left[left:right], self._right[left:right]
+        i = start = min([start] + lslice[:1])
+        end = max([end] + rslice[-1:])
+        for j, k in zip(lslice, rslice):
+            if j > i:
+                yield i, j - 1
+            i = k + 1
+        if i <= end:
+            yield i, end
+        self._left[left:right], self._right[left:right] = [start], [end]
+
+    def _download(self, start: int, end: int) -> None:
+        """Download bytes from start to end inclusively."""
+        with self._stay():
+            left = bisect_left(self._right, start)
+            right = bisect_right(self._left, end)
+            for start, end in self._merge(start, end, left, right):
+                response = self._stream_response(start, end)
+                response.raise_for_status()
+                self.seek(start)
+                for chunk in response_chunks(response, self._chunk_size):
+                    self._file.write(chunk)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/network/session.py b/utils/python-venv/Lib/site-packages/pip/_internal/network/session.py
new file mode 100644
index 0000000..cbe743b
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/network/session.py
@@ -0,0 +1,454 @@
+"""PipSession and supporting code, containing all pip-specific
+network request configuration and behavior.
+"""
+
+import email.utils
+import io
+import ipaddress
+import json
+import logging
+import mimetypes
+import os
+import platform
+import shutil
+import subprocess
+import sys
+import urllib.parse
+import warnings
+from typing import Any, Dict, Iterator, List, Mapping, Optional, Sequence, Tuple, Union
+
+from pip._vendor import requests, urllib3
+from pip._vendor.cachecontrol import CacheControlAdapter
+from pip._vendor.requests.adapters import BaseAdapter, HTTPAdapter
+from pip._vendor.requests.models import PreparedRequest, Response
+from pip._vendor.requests.structures import CaseInsensitiveDict
+from pip._vendor.urllib3.connectionpool import ConnectionPool
+from pip._vendor.urllib3.exceptions import InsecureRequestWarning
+
+from pip import __version__
+from pip._internal.metadata import get_default_environment
+from pip._internal.models.link import Link
+from pip._internal.network.auth import MultiDomainBasicAuth
+from pip._internal.network.cache import SafeFileCache
+
+# Import ssl from compat so the initial import occurs in only one place.
+from pip._internal.utils.compat import has_tls
+from pip._internal.utils.glibc import libc_ver
+from pip._internal.utils.misc import build_url_from_netloc, parse_netloc
+from pip._internal.utils.urls import url_to_path
+
+logger = logging.getLogger(__name__)
+
+SecureOrigin = Tuple[str, str, Optional[Union[int, str]]]
+
+
+# Ignore warning raised when using --trusted-host.
+warnings.filterwarnings("ignore", category=InsecureRequestWarning)
+
+
+SECURE_ORIGINS: List[SecureOrigin] = [
+    # protocol, hostname, port
+    # Taken from Chrome's list of secure origins (See: http://bit.ly/1qrySKC)
+    ("https", "*", "*"),
+    ("*", "localhost", "*"),
+    ("*", "127.0.0.0/8", "*"),
+    ("*", "::1/128", "*"),
+    ("file", "*", None),
+    # ssh is always secure.
+    ("ssh", "*", "*"),
+]
+
+
+# These are environment variables present when running under various
+# CI systems.  For each variable, some CI systems that use the variable
+# are indicated.  The collection was chosen so that for each of a number
+# of popular systems, at least one of the environment variables is used.
+# This list is used to provide some indication of and lower bound for
+# CI traffic to PyPI.  Thus, it is okay if the list is not comprehensive.
+# For more background, see: https://github.com/pypa/pip/issues/5499
+CI_ENVIRONMENT_VARIABLES = (
+    # Azure Pipelines
+    "BUILD_BUILDID",
+    # Jenkins
+    "BUILD_ID",
+    # AppVeyor, CircleCI, Codeship, Gitlab CI, Shippable, Travis CI
+    "CI",
+    # Explicit environment variable.
+    "PIP_IS_CI",
+)
+
+
+def looks_like_ci() -> bool:
+    """
+    Return whether it looks like pip is running under CI.
+    """
+    # We don't use the method of checking for a tty (e.g. using isatty())
+    # because some CI systems mimic a tty (e.g. Travis CI).  Thus that
+    # method doesn't provide definitive information in either direction.
+    return any(name in os.environ for name in CI_ENVIRONMENT_VARIABLES)
+
+
+def user_agent() -> str:
+    """
+    Return a string representing the user agent.
+    """
+    data: Dict[str, Any] = {
+        "installer": {"name": "pip", "version": __version__},
+        "python": platform.python_version(),
+        "implementation": {
+            "name": platform.python_implementation(),
+        },
+    }
+
+    if data["implementation"]["name"] == "CPython":
+        data["implementation"]["version"] = platform.python_version()
+    elif data["implementation"]["name"] == "PyPy":
+        pypy_version_info = sys.pypy_version_info  # type: ignore
+        if pypy_version_info.releaselevel == "final":
+            pypy_version_info = pypy_version_info[:3]
+        data["implementation"]["version"] = ".".join(
+            [str(x) for x in pypy_version_info]
+        )
+    elif data["implementation"]["name"] == "Jython":
+        # Complete Guess
+        data["implementation"]["version"] = platform.python_version()
+    elif data["implementation"]["name"] == "IronPython":
+        # Complete Guess
+        data["implementation"]["version"] = platform.python_version()
+
+    if sys.platform.startswith("linux"):
+        from pip._vendor import distro
+
+        linux_distribution = distro.name(), distro.version(), distro.codename()
+        distro_infos: Dict[str, Any] = dict(
+            filter(
+                lambda x: x[1],
+                zip(["name", "version", "id"], linux_distribution),
+            )
+        )
+        libc = dict(
+            filter(
+                lambda x: x[1],
+                zip(["lib", "version"], libc_ver()),
+            )
+        )
+        if libc:
+            distro_infos["libc"] = libc
+        if distro_infos:
+            data["distro"] = distro_infos
+
+    if sys.platform.startswith("darwin") and platform.mac_ver()[0]:
+        data["distro"] = {"name": "macOS", "version": platform.mac_ver()[0]}
+
+    if platform.system():
+        data.setdefault("system", {})["name"] = platform.system()
+
+    if platform.release():
+        data.setdefault("system", {})["release"] = platform.release()
+
+    if platform.machine():
+        data["cpu"] = platform.machine()
+
+    if has_tls():
+        import _ssl as ssl
+
+        data["openssl_version"] = ssl.OPENSSL_VERSION
+
+    setuptools_dist = get_default_environment().get_distribution("setuptools")
+    if setuptools_dist is not None:
+        data["setuptools_version"] = str(setuptools_dist.version)
+
+    if shutil.which("rustc") is not None:
+        # If for any reason `rustc --version` fails, silently ignore it
+        try:
+            rustc_output = subprocess.check_output(
+                ["rustc", "--version"], stderr=subprocess.STDOUT, timeout=0.5
+            )
+        except Exception:
+            pass
+        else:
+            if rustc_output.startswith(b"rustc "):
+                # The format of `rustc --version` is:
+                # `b'rustc 1.52.1 (9bc8c42bb 2021-05-09)\n'`
+                # We extract just the middle (1.52.1) part
+                data["rustc_version"] = rustc_output.split(b" ")[1].decode()
+
+    # Use None rather than False so as not to give the impression that
+    # pip knows it is not being run under CI.  Rather, it is a null or
+    # inconclusive result.  Also, we include some value rather than no
+    # value to make it easier to know that the check has been run.
+    data["ci"] = True if looks_like_ci() else None
+
+    user_data = os.environ.get("PIP_USER_AGENT_USER_DATA")
+    if user_data is not None:
+        data["user_data"] = user_data
+
+    return "{data[installer][name]}/{data[installer][version]} {json}".format(
+        data=data,
+        json=json.dumps(data, separators=(",", ":"), sort_keys=True),
+    )
+
+
+class LocalFSAdapter(BaseAdapter):
+    def send(
+        self,
+        request: PreparedRequest,
+        stream: bool = False,
+        timeout: Optional[Union[float, Tuple[float, float]]] = None,
+        verify: Union[bool, str] = True,
+        cert: Optional[Union[str, Tuple[str, str]]] = None,
+        proxies: Optional[Mapping[str, str]] = None,
+    ) -> Response:
+        pathname = url_to_path(request.url)
+
+        resp = Response()
+        resp.status_code = 200
+        resp.url = request.url
+
+        try:
+            stats = os.stat(pathname)
+        except OSError as exc:
+            # format the exception raised as a io.BytesIO object,
+            # to return a better error message:
+            resp.status_code = 404
+            resp.reason = type(exc).__name__
+            resp.raw = io.BytesIO(f"{resp.reason}: {exc}".encode("utf8"))
+        else:
+            modified = email.utils.formatdate(stats.st_mtime, usegmt=True)
+            content_type = mimetypes.guess_type(pathname)[0] or "text/plain"
+            resp.headers = CaseInsensitiveDict(
+                {
+                    "Content-Type": content_type,
+                    "Content-Length": stats.st_size,
+                    "Last-Modified": modified,
+                }
+            )
+
+            resp.raw = open(pathname, "rb")
+            resp.close = resp.raw.close
+
+        return resp
+
+    def close(self) -> None:
+        pass
+
+
+class InsecureHTTPAdapter(HTTPAdapter):
+    def cert_verify(
+        self,
+        conn: ConnectionPool,
+        url: str,
+        verify: Union[bool, str],
+        cert: Optional[Union[str, Tuple[str, str]]],
+    ) -> None:
+        super().cert_verify(conn=conn, url=url, verify=False, cert=cert)
+
+
+class InsecureCacheControlAdapter(CacheControlAdapter):
+    def cert_verify(
+        self,
+        conn: ConnectionPool,
+        url: str,
+        verify: Union[bool, str],
+        cert: Optional[Union[str, Tuple[str, str]]],
+    ) -> None:
+        super().cert_verify(conn=conn, url=url, verify=False, cert=cert)
+
+
+class PipSession(requests.Session):
+
+    timeout: Optional[int] = None
+
+    def __init__(
+        self,
+        *args: Any,
+        retries: int = 0,
+        cache: Optional[str] = None,
+        trusted_hosts: Sequence[str] = (),
+        index_urls: Optional[List[str]] = None,
+        **kwargs: Any,
+    ) -> None:
+        """
+        :param trusted_hosts: Domains not to emit warnings for when not using
+            HTTPS.
+        """
+        super().__init__(*args, **kwargs)
+
+        # Namespace the attribute with "pip_" just in case to prevent
+        # possible conflicts with the base class.
+        self.pip_trusted_origins: List[Tuple[str, Optional[int]]] = []
+
+        # Attach our User Agent to the request
+        self.headers["User-Agent"] = user_agent()
+
+        # Attach our Authentication handler to the session
+        self.auth = MultiDomainBasicAuth(index_urls=index_urls)
+
+        # Create our urllib3.Retry instance which will allow us to customize
+        # how we handle retries.
+        retries = urllib3.Retry(
+            # Set the total number of retries that a particular request can
+            # have.
+            total=retries,
+            # A 503 error from PyPI typically means that the Fastly -> Origin
+            # connection got interrupted in some way. A 503 error in general
+            # is typically considered a transient error so we'll go ahead and
+            # retry it.
+            # A 500 may indicate transient error in Amazon S3
+            # A 520 or 527 - may indicate transient error in CloudFlare
+            status_forcelist=[500, 503, 520, 527],
+            # Add a small amount of back off between failed requests in
+            # order to prevent hammering the service.
+            backoff_factor=0.25,
+        )  # type: ignore
+
+        # Our Insecure HTTPAdapter disables HTTPS validation. It does not
+        # support caching so we'll use it for all http:// URLs.
+        # If caching is disabled, we will also use it for
+        # https:// hosts that we've marked as ignoring
+        # TLS errors for (trusted-hosts).
+        insecure_adapter = InsecureHTTPAdapter(max_retries=retries)
+
+        # We want to _only_ cache responses on securely fetched origins or when
+        # the host is specified as trusted. We do this because
+        # we can't validate the response of an insecurely/untrusted fetched
+        # origin, and we don't want someone to be able to poison the cache and
+        # require manual eviction from the cache to fix it.
+        if cache:
+            secure_adapter = CacheControlAdapter(
+                cache=SafeFileCache(cache),
+                max_retries=retries,
+            )
+            self._trusted_host_adapter = InsecureCacheControlAdapter(
+                cache=SafeFileCache(cache),
+                max_retries=retries,
+            )
+        else:
+            secure_adapter = HTTPAdapter(max_retries=retries)
+            self._trusted_host_adapter = insecure_adapter
+
+        self.mount("https://", secure_adapter)
+        self.mount("http://", insecure_adapter)
+
+        # Enable file:// urls
+        self.mount("file://", LocalFSAdapter())
+
+        for host in trusted_hosts:
+            self.add_trusted_host(host, suppress_logging=True)
+
+    def update_index_urls(self, new_index_urls: List[str]) -> None:
+        """
+        :param new_index_urls: New index urls to update the authentication
+            handler with.
+        """
+        self.auth.index_urls = new_index_urls
+
+    def add_trusted_host(
+        self, host: str, source: Optional[str] = None, suppress_logging: bool = False
+    ) -> None:
+        """
+        :param host: It is okay to provide a host that has previously been
+            added.
+        :param source: An optional source string, for logging where the host
+            string came from.
+        """
+        if not suppress_logging:
+            msg = f"adding trusted host: {host!r}"
+            if source is not None:
+                msg += f" (from {source})"
+            logger.info(msg)
+
+        host_port = parse_netloc(host)
+        if host_port not in self.pip_trusted_origins:
+            self.pip_trusted_origins.append(host_port)
+
+        self.mount(
+            build_url_from_netloc(host, scheme="http") + "/", self._trusted_host_adapter
+        )
+        self.mount(build_url_from_netloc(host) + "/", self._trusted_host_adapter)
+        if not host_port[1]:
+            self.mount(
+                build_url_from_netloc(host, scheme="http") + ":",
+                self._trusted_host_adapter,
+            )
+            # Mount wildcard ports for the same host.
+            self.mount(build_url_from_netloc(host) + ":", self._trusted_host_adapter)
+
+    def iter_secure_origins(self) -> Iterator[SecureOrigin]:
+        yield from SECURE_ORIGINS
+        for host, port in self.pip_trusted_origins:
+            yield ("*", host, "*" if port is None else port)
+
+    def is_secure_origin(self, location: Link) -> bool:
+        # Determine if this url used a secure transport mechanism
+        parsed = urllib.parse.urlparse(str(location))
+        origin_protocol, origin_host, origin_port = (
+            parsed.scheme,
+            parsed.hostname,
+            parsed.port,
+        )
+
+        # The protocol to use to see if the protocol matches.
+        # Don't count the repository type as part of the protocol: in
+        # cases such as "git+ssh", only use "ssh". (I.e., Only verify against
+        # the last scheme.)
+        origin_protocol = origin_protocol.rsplit("+", 1)[-1]
+
+        # Determine if our origin is a secure origin by looking through our
+        # hardcoded list of secure origins, as well as any additional ones
+        # configured on this PackageFinder instance.
+        for secure_origin in self.iter_secure_origins():
+            secure_protocol, secure_host, secure_port = secure_origin
+            if origin_protocol != secure_protocol and secure_protocol != "*":
+                continue
+
+            try:
+                addr = ipaddress.ip_address(origin_host)
+                network = ipaddress.ip_network(secure_host)
+            except ValueError:
+                # We don't have both a valid address or a valid network, so
+                # we'll check this origin against hostnames.
+                if (
+                    origin_host
+                    and origin_host.lower() != secure_host.lower()
+                    and secure_host != "*"
+                ):
+                    continue
+            else:
+                # We have a valid address and network, so see if the address
+                # is contained within the network.
+                if addr not in network:
+                    continue
+
+            # Check to see if the port matches.
+            if (
+                origin_port != secure_port
+                and secure_port != "*"
+                and secure_port is not None
+            ):
+                continue
+
+            # If we've gotten here, then this origin matches the current
+            # secure origin and we should return True
+            return True
+
+        # If we've gotten to this point, then the origin isn't secure and we
+        # will not accept it as a valid location to search. We will however
+        # log a warning that we are ignoring it.
+        logger.warning(
+            "The repository located at %s is not a trusted or secure host and "
+            "is being ignored. If this repository is available via HTTPS we "
+            "recommend you use HTTPS instead, otherwise you may silence "
+            "this warning and allow it anyway with '--trusted-host %s'.",
+            origin_host,
+            origin_host,
+        )
+
+        return False
+
+    def request(self, method: str, url: str, *args: Any, **kwargs: Any) -> Response:
+        # Allow setting a default timeout on a session
+        kwargs.setdefault("timeout", self.timeout)
+
+        # Dispatch the actual request
+        return super().request(method, url, *args, **kwargs)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/network/utils.py b/utils/python-venv/Lib/site-packages/pip/_internal/network/utils.py
new file mode 100644
index 0000000..094cf1b
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/network/utils.py
@@ -0,0 +1,96 @@
+from typing import Dict, Iterator
+
+from pip._vendor.requests.models import CONTENT_CHUNK_SIZE, Response
+
+from pip._internal.exceptions import NetworkConnectionError
+
+# The following comments and HTTP headers were originally added by
+# Donald Stufft in git commit 22c562429a61bb77172039e480873fb239dd8c03.
+#
+# We use Accept-Encoding: identity here because requests defaults to
+# accepting compressed responses. This breaks in a variety of ways
+# depending on how the server is configured.
+# - Some servers will notice that the file isn't a compressible file
+#   and will leave the file alone and with an empty Content-Encoding
+# - Some servers will notice that the file is already compressed and
+#   will leave the file alone, adding a Content-Encoding: gzip header
+# - Some servers won't notice anything at all and will take a file
+#   that's already been compressed and compress it again, and set
+#   the Content-Encoding: gzip header
+# By setting this to request only the identity encoding we're hoping
+# to eliminate the third case.  Hopefully there does not exist a server
+# which when given a file will notice it is already compressed and that
+# you're not asking for a compressed file and will then decompress it
+# before sending because if that's the case I don't think it'll ever be
+# possible to make this work.
+HEADERS: Dict[str, str] = {"Accept-Encoding": "identity"}
+
+
+def raise_for_status(resp: Response) -> None:
+    http_error_msg = ""
+    if isinstance(resp.reason, bytes):
+        # We attempt to decode utf-8 first because some servers
+        # choose to localize their reason strings. If the string
+        # isn't utf-8, we fall back to iso-8859-1 for all other
+        # encodings.
+        try:
+            reason = resp.reason.decode("utf-8")
+        except UnicodeDecodeError:
+            reason = resp.reason.decode("iso-8859-1")
+    else:
+        reason = resp.reason
+
+    if 400 <= resp.status_code < 500:
+        http_error_msg = (
+            f"{resp.status_code} Client Error: {reason} for url: {resp.url}"
+        )
+
+    elif 500 <= resp.status_code < 600:
+        http_error_msg = (
+            f"{resp.status_code} Server Error: {reason} for url: {resp.url}"
+        )
+
+    if http_error_msg:
+        raise NetworkConnectionError(http_error_msg, response=resp)
+
+
+def response_chunks(
+    response: Response, chunk_size: int = CONTENT_CHUNK_SIZE
+) -> Iterator[bytes]:
+    """Given a requests Response, provide the data chunks."""
+    try:
+        # Special case for urllib3.
+        for chunk in response.raw.stream(
+            chunk_size,
+            # We use decode_content=False here because we don't
+            # want urllib3 to mess with the raw bytes we get
+            # from the server. If we decompress inside of
+            # urllib3 then we cannot verify the checksum
+            # because the checksum will be of the compressed
+            # file. This breakage will only occur if the
+            # server adds a Content-Encoding header, which
+            # depends on how the server was configured:
+            # - Some servers will notice that the file isn't a
+            #   compressible file and will leave the file alone
+            #   and with an empty Content-Encoding
+            # - Some servers will notice that the file is
+            #   already compressed and will leave the file
+            #   alone and will add a Content-Encoding: gzip
+            #   header
+            # - Some servers won't notice anything at all and
+            #   will take a file that's already been compressed
+            #   and compress it again and set the
+            #   Content-Encoding: gzip header
+            #
+            # By setting this not to decode automatically we
+            # hope to eliminate problems with the second case.
+            decode_content=False,
+        ):
+            yield chunk
+    except AttributeError:
+        # Standard file-like object.
+        while True:
+            chunk = response.raw.read(chunk_size)
+            if not chunk:
+                break
+            yield chunk
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/network/xmlrpc.py b/utils/python-venv/Lib/site-packages/pip/_internal/network/xmlrpc.py
new file mode 100644
index 0000000..4a7d55d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/network/xmlrpc.py
@@ -0,0 +1,60 @@
+"""xmlrpclib.Transport implementation
+"""
+
+import logging
+import urllib.parse
+import xmlrpc.client
+from typing import TYPE_CHECKING, Tuple
+
+from pip._internal.exceptions import NetworkConnectionError
+from pip._internal.network.session import PipSession
+from pip._internal.network.utils import raise_for_status
+
+if TYPE_CHECKING:
+    from xmlrpc.client import _HostType, _Marshallable
+
+logger = logging.getLogger(__name__)
+
+
+class PipXmlrpcTransport(xmlrpc.client.Transport):
+    """Provide a `xmlrpclib.Transport` implementation via a `PipSession`
+    object.
+    """
+
+    def __init__(
+        self, index_url: str, session: PipSession, use_datetime: bool = False
+    ) -> None:
+        super().__init__(use_datetime)
+        index_parts = urllib.parse.urlparse(index_url)
+        self._scheme = index_parts.scheme
+        self._session = session
+
+    def request(
+        self,
+        host: "_HostType",
+        handler: str,
+        request_body: bytes,
+        verbose: bool = False,
+    ) -> Tuple["_Marshallable", ...]:
+        assert isinstance(host, str)
+        parts = (self._scheme, host, handler, None, None, None)
+        url = urllib.parse.urlunparse(parts)
+        try:
+            headers = {"Content-Type": "text/xml"}
+            response = self._session.post(
+                url,
+                data=request_body,
+                headers=headers,
+                stream=True,
+            )
+            raise_for_status(response)
+            self.verbose = verbose
+            return self.parse_response(response.raw)
+        except NetworkConnectionError as exc:
+            assert exc.response
+            logger.critical(
+                "HTTP error %s while getting %s",
+                exc.response.status_code,
+                url,
+            )
+            raise
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/metadata.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/metadata.py
new file mode 100644
index 0000000..7d12438
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/metadata.py
@@ -0,0 +1,30 @@
+"""Metadata generation logic for source distributions.
+"""
+
+import os
+
+from pip._vendor.pep517.wrappers import Pep517HookCaller
+
+from pip._internal.build_env import BuildEnvironment
+from pip._internal.utils.subprocess import runner_with_spinner_message
+from pip._internal.utils.temp_dir import TempDirectory
+
+
+def generate_metadata(build_env: BuildEnvironment, backend: Pep517HookCaller) -> str:
+    """Generate metadata using mechanisms described in PEP 517.
+
+    Returns the generated metadata directory.
+    """
+    metadata_tmpdir = TempDirectory(kind="modern-metadata", globally_managed=True)
+
+    metadata_dir = metadata_tmpdir.path
+
+    with build_env:
+        # Note that Pep517HookCaller implements a fallback for
+        # prepare_metadata_for_build_wheel, so we don't have to
+        # consider the possibility that this hook doesn't exist.
+        runner = runner_with_spinner_message("Preparing metadata (pyproject.toml)")
+        with backend.subprocess_runner(runner):
+            distinfo_dir = backend.prepare_metadata_for_build_wheel(metadata_dir)
+
+    return os.path.join(metadata_dir, distinfo_dir)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/metadata_editable.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/metadata_editable.py
new file mode 100644
index 0000000..13de75f
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/metadata_editable.py
@@ -0,0 +1,34 @@
+"""Metadata generation logic for source distributions.
+"""
+
+import os
+
+from pip._vendor.pep517.wrappers import Pep517HookCaller
+
+from pip._internal.build_env import BuildEnvironment
+from pip._internal.utils.subprocess import runner_with_spinner_message
+from pip._internal.utils.temp_dir import TempDirectory
+
+
+def generate_editable_metadata(
+    build_env: BuildEnvironment, backend: Pep517HookCaller
+) -> str:
+    """Generate metadata using mechanisms described in PEP 660.
+
+    Returns the generated metadata directory.
+    """
+    metadata_tmpdir = TempDirectory(kind="modern-metadata", globally_managed=True)
+
+    metadata_dir = metadata_tmpdir.path
+
+    with build_env:
+        # Note that Pep517HookCaller implements a fallback for
+        # prepare_metadata_for_build_wheel/editable, so we don't have to
+        # consider the possibility that this hook doesn't exist.
+        runner = runner_with_spinner_message(
+            "Preparing editable metadata (pyproject.toml)"
+        )
+        with backend.subprocess_runner(runner):
+            distinfo_dir = backend.prepare_metadata_for_build_editable(metadata_dir)
+
+    return os.path.join(metadata_dir, distinfo_dir)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/metadata_legacy.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/metadata_legacy.py
new file mode 100644
index 0000000..ff52de9
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/metadata_legacy.py
@@ -0,0 +1,67 @@
+"""Metadata generation logic for legacy source distributions.
+"""
+
+import logging
+import os
+
+from pip._internal.build_env import BuildEnvironment
+from pip._internal.cli.spinners import open_spinner
+from pip._internal.exceptions import InstallationError
+from pip._internal.utils.setuptools_build import make_setuptools_egg_info_args
+from pip._internal.utils.subprocess import call_subprocess
+from pip._internal.utils.temp_dir import TempDirectory
+
+logger = logging.getLogger(__name__)
+
+
+def _find_egg_info(directory: str) -> str:
+    """Find an .egg-info subdirectory in `directory`."""
+    filenames = [f for f in os.listdir(directory) if f.endswith(".egg-info")]
+
+    if not filenames:
+        raise InstallationError(f"No .egg-info directory found in {directory}")
+
+    if len(filenames) > 1:
+        raise InstallationError(
+            "More than one .egg-info directory found in {}".format(directory)
+        )
+
+    return os.path.join(directory, filenames[0])
+
+
+def generate_metadata(
+    build_env: BuildEnvironment,
+    setup_py_path: str,
+    source_dir: str,
+    isolated: bool,
+    details: str,
+) -> str:
+    """Generate metadata using setup.py-based defacto mechanisms.
+
+    Returns the generated metadata directory.
+    """
+    logger.debug(
+        "Running setup.py (path:%s) egg_info for package %s",
+        setup_py_path,
+        details,
+    )
+
+    egg_info_dir = TempDirectory(kind="pip-egg-info", globally_managed=True).path
+
+    args = make_setuptools_egg_info_args(
+        setup_py_path,
+        egg_info_dir=egg_info_dir,
+        no_user_config=isolated,
+    )
+
+    with build_env:
+        with open_spinner("Preparing metadata (setup.py)") as spinner:
+            call_subprocess(
+                args,
+                cwd=source_dir,
+                command_desc="python setup.py egg_info",
+                spinner=spinner,
+            )
+
+    # Return the .egg-info directory.
+    return _find_egg_info(egg_info_dir)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/wheel.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/wheel.py
new file mode 100644
index 0000000..b0d2fc9
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/wheel.py
@@ -0,0 +1,37 @@
+import logging
+import os
+from typing import Optional
+
+from pip._vendor.pep517.wrappers import Pep517HookCaller
+
+from pip._internal.utils.subprocess import runner_with_spinner_message
+
+logger = logging.getLogger(__name__)
+
+
+def build_wheel_pep517(
+    name: str,
+    backend: Pep517HookCaller,
+    metadata_directory: str,
+    tempd: str,
+) -> Optional[str]:
+    """Build one InstallRequirement using the PEP 517 build process.
+
+    Returns path to wheel if successfully built. Otherwise, returns None.
+    """
+    assert metadata_directory is not None
+    try:
+        logger.debug("Destination directory: %s", tempd)
+
+        runner = runner_with_spinner_message(
+            f"Building wheel for {name} (pyproject.toml)"
+        )
+        with backend.subprocess_runner(runner):
+            wheel_name = backend.build_wheel(
+                tempd,
+                metadata_directory=metadata_directory,
+            )
+    except Exception:
+        logger.error("Failed building wheel for %s", name)
+        return None
+    return os.path.join(tempd, wheel_name)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/wheel_editable.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/wheel_editable.py
new file mode 100644
index 0000000..cf7b01a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/wheel_editable.py
@@ -0,0 +1,46 @@
+import logging
+import os
+from typing import Optional
+
+from pip._vendor.pep517.wrappers import HookMissing, Pep517HookCaller
+
+from pip._internal.utils.subprocess import runner_with_spinner_message
+
+logger = logging.getLogger(__name__)
+
+
+def build_wheel_editable(
+    name: str,
+    backend: Pep517HookCaller,
+    metadata_directory: str,
+    tempd: str,
+) -> Optional[str]:
+    """Build one InstallRequirement using the PEP 660 build process.
+
+    Returns path to wheel if successfully built. Otherwise, returns None.
+    """
+    assert metadata_directory is not None
+    try:
+        logger.debug("Destination directory: %s", tempd)
+
+        runner = runner_with_spinner_message(
+            f"Building editable for {name} (pyproject.toml)"
+        )
+        with backend.subprocess_runner(runner):
+            try:
+                wheel_name = backend.build_editable(
+                    tempd,
+                    metadata_directory=metadata_directory,
+                )
+            except HookMissing as e:
+                logger.error(
+                    "Cannot build editable %s because the build "
+                    "backend does not have the %s hook",
+                    name,
+                    e,
+                )
+                return None
+    except Exception:
+        logger.error("Failed building editable for %s", name)
+        return None
+    return os.path.join(tempd, wheel_name)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/wheel_legacy.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/wheel_legacy.py
new file mode 100644
index 0000000..2d5cb26
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/build/wheel_legacy.py
@@ -0,0 +1,105 @@
+import logging
+import os.path
+from typing import List, Optional
+
+from pip._internal.cli.spinners import open_spinner
+from pip._internal.utils.setuptools_build import make_setuptools_bdist_wheel_args
+from pip._internal.utils.subprocess import (
+    LOG_DIVIDER,
+    call_subprocess,
+    format_command_args,
+)
+
+logger = logging.getLogger(__name__)
+
+
+def format_command_result(
+    command_args: List[str],
+    command_output: str,
+) -> str:
+    """Format command information for logging."""
+    command_desc = format_command_args(command_args)
+    text = f"Command arguments: {command_desc}\n"
+
+    if not command_output:
+        text += "Command output: None"
+    elif logger.getEffectiveLevel() > logging.DEBUG:
+        text += "Command output: [use --verbose to show]"
+    else:
+        if not command_output.endswith("\n"):
+            command_output += "\n"
+        text += f"Command output:\n{command_output}{LOG_DIVIDER}"
+
+    return text
+
+
+def get_legacy_build_wheel_path(
+    names: List[str],
+    temp_dir: str,
+    name: str,
+    command_args: List[str],
+    command_output: str,
+) -> Optional[str]:
+    """Return the path to the wheel in the temporary build directory."""
+    # Sort for determinism.
+    names = sorted(names)
+    if not names:
+        msg = ("Legacy build of wheel for {!r} created no files.\n").format(name)
+        msg += format_command_result(command_args, command_output)
+        logger.warning(msg)
+        return None
+
+    if len(names) > 1:
+        msg = (
+            "Legacy build of wheel for {!r} created more than one file.\n"
+            "Filenames (choosing first): {}\n"
+        ).format(name, names)
+        msg += format_command_result(command_args, command_output)
+        logger.warning(msg)
+
+    return os.path.join(temp_dir, names[0])
+
+
+def build_wheel_legacy(
+    name: str,
+    setup_py_path: str,
+    source_dir: str,
+    global_options: List[str],
+    build_options: List[str],
+    tempd: str,
+) -> Optional[str]:
+    """Build one unpacked package using the "legacy" build process.
+
+    Returns path to wheel if successfully built. Otherwise, returns None.
+    """
+    wheel_args = make_setuptools_bdist_wheel_args(
+        setup_py_path,
+        global_options=global_options,
+        build_options=build_options,
+        destination_dir=tempd,
+    )
+
+    spin_message = f"Building wheel for {name} (setup.py)"
+    with open_spinner(spin_message) as spinner:
+        logger.debug("Destination directory: %s", tempd)
+
+        try:
+            output = call_subprocess(
+                wheel_args,
+                cwd=source_dir,
+                spinner=spinner,
+            )
+        except Exception:
+            spinner.finish("error")
+            logger.error("Failed building wheel for %s", name)
+            return None
+
+        names = os.listdir(tempd)
+        wheel_path = get_legacy_build_wheel_path(
+            names=names,
+            temp_dir=tempd,
+            name=name,
+            command_args=wheel_args,
+            command_output=output,
+        )
+        return wheel_path
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/check.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/check.py
new file mode 100644
index 0000000..fb3ac8b
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/check.py
@@ -0,0 +1,149 @@
+"""Validation of dependencies of packages
+"""
+
+import logging
+from typing import Callable, Dict, List, NamedTuple, Optional, Set, Tuple
+
+from pip._vendor.packaging.requirements import Requirement
+from pip._vendor.packaging.utils import NormalizedName, canonicalize_name
+
+from pip._internal.distributions import make_distribution_for_install_requirement
+from pip._internal.metadata import get_default_environment
+from pip._internal.metadata.base import DistributionVersion
+from pip._internal.req.req_install import InstallRequirement
+
+logger = logging.getLogger(__name__)
+
+
+class PackageDetails(NamedTuple):
+    version: DistributionVersion
+    dependencies: List[Requirement]
+
+
+# Shorthands
+PackageSet = Dict[NormalizedName, PackageDetails]
+Missing = Tuple[NormalizedName, Requirement]
+Conflicting = Tuple[NormalizedName, DistributionVersion, Requirement]
+
+MissingDict = Dict[NormalizedName, List[Missing]]
+ConflictingDict = Dict[NormalizedName, List[Conflicting]]
+CheckResult = Tuple[MissingDict, ConflictingDict]
+ConflictDetails = Tuple[PackageSet, CheckResult]
+
+
+def create_package_set_from_installed() -> Tuple[PackageSet, bool]:
+    """Converts a list of distributions into a PackageSet."""
+    package_set = {}
+    problems = False
+    env = get_default_environment()
+    for dist in env.iter_installed_distributions(local_only=False, skip=()):
+        name = dist.canonical_name
+        try:
+            dependencies = list(dist.iter_dependencies())
+            package_set[name] = PackageDetails(dist.version, dependencies)
+        except (OSError, ValueError) as e:
+            # Don't crash on unreadable or broken metadata.
+            logger.warning("Error parsing requirements for %s: %s", name, e)
+            problems = True
+    return package_set, problems
+
+
+def check_package_set(
+    package_set: PackageSet, should_ignore: Optional[Callable[[str], bool]] = None
+) -> CheckResult:
+    """Check if a package set is consistent
+
+    If should_ignore is passed, it should be a callable that takes a
+    package name and returns a boolean.
+    """
+
+    missing = {}
+    conflicting = {}
+
+    for package_name, package_detail in package_set.items():
+        # Info about dependencies of package_name
+        missing_deps: Set[Missing] = set()
+        conflicting_deps: Set[Conflicting] = set()
+
+        if should_ignore and should_ignore(package_name):
+            continue
+
+        for req in package_detail.dependencies:
+            name = canonicalize_name(req.name)
+
+            # Check if it's missing
+            if name not in package_set:
+                missed = True
+                if req.marker is not None:
+                    missed = req.marker.evaluate()
+                if missed:
+                    missing_deps.add((name, req))
+                continue
+
+            # Check if there's a conflict
+            version = package_set[name].version
+            if not req.specifier.contains(version, prereleases=True):
+                conflicting_deps.add((name, version, req))
+
+        if missing_deps:
+            missing[package_name] = sorted(missing_deps, key=str)
+        if conflicting_deps:
+            conflicting[package_name] = sorted(conflicting_deps, key=str)
+
+    return missing, conflicting
+
+
+def check_install_conflicts(to_install: List[InstallRequirement]) -> ConflictDetails:
+    """For checking if the dependency graph would be consistent after \
+    installing given requirements
+    """
+    # Start from the current state
+    package_set, _ = create_package_set_from_installed()
+    # Install packages
+    would_be_installed = _simulate_installation_of(to_install, package_set)
+
+    # Only warn about directly-dependent packages; create a whitelist of them
+    whitelist = _create_whitelist(would_be_installed, package_set)
+
+    return (
+        package_set,
+        check_package_set(
+            package_set, should_ignore=lambda name: name not in whitelist
+        ),
+    )
+
+
+def _simulate_installation_of(
+    to_install: List[InstallRequirement], package_set: PackageSet
+) -> Set[NormalizedName]:
+    """Computes the version of packages after installing to_install."""
+    # Keep track of packages that were installed
+    installed = set()
+
+    # Modify it as installing requirement_set would (assuming no errors)
+    for inst_req in to_install:
+        abstract_dist = make_distribution_for_install_requirement(inst_req)
+        dist = abstract_dist.get_metadata_distribution()
+        name = dist.canonical_name
+        package_set[name] = PackageDetails(dist.version, list(dist.iter_dependencies()))
+
+        installed.add(name)
+
+    return installed
+
+
+def _create_whitelist(
+    would_be_installed: Set[NormalizedName], package_set: PackageSet
+) -> Set[NormalizedName]:
+    packages_affected = set(would_be_installed)
+
+    for package_name in package_set:
+        if package_name in packages_affected:
+            continue
+
+        for req in package_set[package_name].dependencies:
+            if canonicalize_name(req.name) in packages_affected:
+                packages_affected.add(package_name)
+                break
+
+    return packages_affected
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/freeze.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/freeze.py
new file mode 100644
index 0000000..4565540
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/freeze.py
@@ -0,0 +1,254 @@
+import collections
+import logging
+import os
+from typing import Container, Dict, Iterable, Iterator, List, NamedTuple, Optional, Set
+
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.packaging.version import Version
+
+from pip._internal.exceptions import BadCommand, InstallationError
+from pip._internal.metadata import BaseDistribution, get_environment
+from pip._internal.req.constructors import (
+    install_req_from_editable,
+    install_req_from_line,
+)
+from pip._internal.req.req_file import COMMENT_RE
+from pip._internal.utils.direct_url_helpers import direct_url_as_pep440_direct_reference
+
+logger = logging.getLogger(__name__)
+
+
+class _EditableInfo(NamedTuple):
+    requirement: str
+    comments: List[str]
+
+
+def freeze(
+    requirement: Optional[List[str]] = None,
+    local_only: bool = False,
+    user_only: bool = False,
+    paths: Optional[List[str]] = None,
+    isolated: bool = False,
+    exclude_editable: bool = False,
+    skip: Container[str] = (),
+) -> Iterator[str]:
+    installations: Dict[str, FrozenRequirement] = {}
+
+    dists = get_environment(paths).iter_installed_distributions(
+        local_only=local_only,
+        skip=(),
+        user_only=user_only,
+    )
+    for dist in dists:
+        req = FrozenRequirement.from_dist(dist)
+        if exclude_editable and req.editable:
+            continue
+        installations[req.canonical_name] = req
+
+    if requirement:
+        # the options that don't get turned into an InstallRequirement
+        # should only be emitted once, even if the same option is in multiple
+        # requirements files, so we need to keep track of what has been emitted
+        # so that we don't emit it again if it's seen again
+        emitted_options: Set[str] = set()
+        # keep track of which files a requirement is in so that we can
+        # give an accurate warning if a requirement appears multiple times.
+        req_files: Dict[str, List[str]] = collections.defaultdict(list)
+        for req_file_path in requirement:
+            with open(req_file_path) as req_file:
+                for line in req_file:
+                    if (
+                        not line.strip()
+                        or line.strip().startswith("#")
+                        or line.startswith(
+                            (
+                                "-r",
+                                "--requirement",
+                                "-f",
+                                "--find-links",
+                                "-i",
+                                "--index-url",
+                                "--pre",
+                                "--trusted-host",
+                                "--process-dependency-links",
+                                "--extra-index-url",
+                                "--use-feature",
+                            )
+                        )
+                    ):
+                        line = line.rstrip()
+                        if line not in emitted_options:
+                            emitted_options.add(line)
+                            yield line
+                        continue
+
+                    if line.startswith("-e") or line.startswith("--editable"):
+                        if line.startswith("-e"):
+                            line = line[2:].strip()
+                        else:
+                            line = line[len("--editable") :].strip().lstrip("=")
+                        line_req = install_req_from_editable(
+                            line,
+                            isolated=isolated,
+                        )
+                    else:
+                        line_req = install_req_from_line(
+                            COMMENT_RE.sub("", line).strip(),
+                            isolated=isolated,
+                        )
+
+                    if not line_req.name:
+                        logger.info(
+                            "Skipping line in requirement file [%s] because "
+                            "it's not clear what it would install: %s",
+                            req_file_path,
+                            line.strip(),
+                        )
+                        logger.info(
+                            "  (add #egg=PackageName to the URL to avoid"
+                            " this warning)"
+                        )
+                    else:
+                        line_req_canonical_name = canonicalize_name(line_req.name)
+                        if line_req_canonical_name not in installations:
+                            # either it's not installed, or it is installed
+                            # but has been processed already
+                            if not req_files[line_req.name]:
+                                logger.warning(
+                                    "Requirement file [%s] contains %s, but "
+                                    "package %r is not installed",
+                                    req_file_path,
+                                    COMMENT_RE.sub("", line).strip(),
+                                    line_req.name,
+                                )
+                            else:
+                                req_files[line_req.name].append(req_file_path)
+                        else:
+                            yield str(installations[line_req_canonical_name]).rstrip()
+                            del installations[line_req_canonical_name]
+                            req_files[line_req.name].append(req_file_path)
+
+        # Warn about requirements that were included multiple times (in a
+        # single requirements file or in different requirements files).
+        for name, files in req_files.items():
+            if len(files) > 1:
+                logger.warning(
+                    "Requirement %s included multiple times [%s]",
+                    name,
+                    ", ".join(sorted(set(files))),
+                )
+
+        yield ("## The following requirements were added by pip freeze:")
+    for installation in sorted(installations.values(), key=lambda x: x.name.lower()):
+        if installation.canonical_name not in skip:
+            yield str(installation).rstrip()
+
+
+def _format_as_name_version(dist: BaseDistribution) -> str:
+    if isinstance(dist.version, Version):
+        return f"{dist.raw_name}=={dist.version}"
+    return f"{dist.raw_name}==={dist.version}"
+
+
+def _get_editable_info(dist: BaseDistribution) -> _EditableInfo:
+    """
+    Compute and return values (req, comments) for use in
+    FrozenRequirement.from_dist().
+    """
+    editable_project_location = dist.editable_project_location
+    assert editable_project_location
+    location = os.path.normcase(os.path.abspath(editable_project_location))
+
+    from pip._internal.vcs import RemoteNotFoundError, RemoteNotValidError, vcs
+
+    vcs_backend = vcs.get_backend_for_dir(location)
+
+    if vcs_backend is None:
+        display = _format_as_name_version(dist)
+        logger.debug(
+            'No VCS found for editable requirement "%s" in: %r',
+            display,
+            location,
+        )
+        return _EditableInfo(
+            requirement=location,
+            comments=[f"# Editable install with no version control ({display})"],
+        )
+
+    vcs_name = type(vcs_backend).__name__
+
+    try:
+        req = vcs_backend.get_src_requirement(location, dist.raw_name)
+    except RemoteNotFoundError:
+        display = _format_as_name_version(dist)
+        return _EditableInfo(
+            requirement=location,
+            comments=[f"# Editable {vcs_name} install with no remote ({display})"],
+        )
+    except RemoteNotValidError as ex:
+        display = _format_as_name_version(dist)
+        return _EditableInfo(
+            requirement=location,
+            comments=[
+                f"# Editable {vcs_name} install ({display}) with either a deleted "
+                f"local remote or invalid URI:",
+                f"# '{ex.url}'",
+            ],
+        )
+    except BadCommand:
+        logger.warning(
+            "cannot determine version of editable source in %s "
+            "(%s command not found in path)",
+            location,
+            vcs_backend.name,
+        )
+        return _EditableInfo(requirement=location, comments=[])
+    except InstallationError as exc:
+        logger.warning("Error when trying to get requirement for VCS system %s", exc)
+    else:
+        return _EditableInfo(requirement=req, comments=[])
+
+    logger.warning("Could not determine repository location of %s", location)
+
+    return _EditableInfo(
+        requirement=location,
+        comments=["## !! Could not determine repository location"],
+    )
+
+
+class FrozenRequirement:
+    def __init__(
+        self,
+        name: str,
+        req: str,
+        editable: bool,
+        comments: Iterable[str] = (),
+    ) -> None:
+        self.name = name
+        self.canonical_name = canonicalize_name(name)
+        self.req = req
+        self.editable = editable
+        self.comments = comments
+
+    @classmethod
+    def from_dist(cls, dist: BaseDistribution) -> "FrozenRequirement":
+        editable = dist.editable
+        if editable:
+            req, comments = _get_editable_info(dist)
+        else:
+            comments = []
+            direct_url = dist.direct_url
+            if direct_url:
+                # if PEP 610 metadata is present, use it
+                req = direct_url_as_pep440_direct_reference(direct_url, dist.raw_name)
+            else:
+                # name==version requirement
+                req = _format_as_name_version(dist)
+
+        return cls(dist.raw_name, req, editable, comments=comments)
+
+    def __str__(self) -> str:
+        req = self.req
+        if self.editable:
+            req = f"-e {req}"
+        return "\n".join(list(self.comments) + [str(req)]) + "\n"
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/__init__.py
new file mode 100644
index 0000000..24d6a5d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/__init__.py
@@ -0,0 +1,2 @@
+"""For modules related to installing packages.
+"""
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/editable_legacy.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/editable_legacy.py
new file mode 100644
index 0000000..5bd72ca
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/editable_legacy.py
@@ -0,0 +1,46 @@
+"""Legacy editable installation process, i.e. `setup.py develop`.
+"""
+import logging
+from typing import List, Optional, Sequence
+
+from pip._internal.build_env import BuildEnvironment
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.setuptools_build import make_setuptools_develop_args
+from pip._internal.utils.subprocess import call_subprocess
+
+logger = logging.getLogger(__name__)
+
+
+def install_editable(
+    install_options: List[str],
+    global_options: Sequence[str],
+    prefix: Optional[str],
+    home: Optional[str],
+    use_user_site: bool,
+    name: str,
+    setup_py_path: str,
+    isolated: bool,
+    build_env: BuildEnvironment,
+    unpacked_source_directory: str,
+) -> None:
+    """Install a package in editable mode. Most arguments are pass-through
+    to setuptools.
+    """
+    logger.info("Running setup.py develop for %s", name)
+
+    args = make_setuptools_develop_args(
+        setup_py_path,
+        global_options=global_options,
+        install_options=install_options,
+        no_user_config=isolated,
+        prefix=prefix,
+        home=home,
+        use_user_site=use_user_site,
+    )
+
+    with indent_log():
+        with build_env:
+            call_subprocess(
+                args,
+                cwd=unpacked_source_directory,
+            )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/legacy.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/legacy.py
new file mode 100644
index 0000000..2206c93
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/legacy.py
@@ -0,0 +1,125 @@
+"""Legacy installation process, i.e. `setup.py install`.
+"""
+
+import logging
+import os
+from distutils.util import change_root
+from typing import List, Optional, Sequence
+
+from pip._internal.build_env import BuildEnvironment
+from pip._internal.exceptions import InstallationError
+from pip._internal.models.scheme import Scheme
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import ensure_dir
+from pip._internal.utils.setuptools_build import make_setuptools_install_args
+from pip._internal.utils.subprocess import runner_with_spinner_message
+from pip._internal.utils.temp_dir import TempDirectory
+
+logger = logging.getLogger(__name__)
+
+
+class LegacyInstallFailure(Exception):
+    pass
+
+
+def write_installed_files_from_setuptools_record(
+    record_lines: List[str],
+    root: Optional[str],
+    req_description: str,
+) -> None:
+    def prepend_root(path: str) -> str:
+        if root is None or not os.path.isabs(path):
+            return path
+        else:
+            return change_root(root, path)
+
+    for line in record_lines:
+        directory = os.path.dirname(line)
+        if directory.endswith(".egg-info"):
+            egg_info_dir = prepend_root(directory)
+            break
+    else:
+        message = (
+            "{} did not indicate that it installed an "
+            ".egg-info directory. Only setup.py projects "
+            "generating .egg-info directories are supported."
+        ).format(req_description)
+        raise InstallationError(message)
+
+    new_lines = []
+    for line in record_lines:
+        filename = line.strip()
+        if os.path.isdir(filename):
+            filename += os.path.sep
+        new_lines.append(os.path.relpath(prepend_root(filename), egg_info_dir))
+    new_lines.sort()
+    ensure_dir(egg_info_dir)
+    inst_files_path = os.path.join(egg_info_dir, "installed-files.txt")
+    with open(inst_files_path, "w") as f:
+        f.write("\n".join(new_lines) + "\n")
+
+
+def install(
+    install_options: List[str],
+    global_options: Sequence[str],
+    root: Optional[str],
+    home: Optional[str],
+    prefix: Optional[str],
+    use_user_site: bool,
+    pycompile: bool,
+    scheme: Scheme,
+    setup_py_path: str,
+    isolated: bool,
+    req_name: str,
+    build_env: BuildEnvironment,
+    unpacked_source_directory: str,
+    req_description: str,
+) -> bool:
+
+    header_dir = scheme.headers
+
+    with TempDirectory(kind="record") as temp_dir:
+        try:
+            record_filename = os.path.join(temp_dir.path, "install-record.txt")
+            install_args = make_setuptools_install_args(
+                setup_py_path,
+                global_options=global_options,
+                install_options=install_options,
+                record_filename=record_filename,
+                root=root,
+                prefix=prefix,
+                header_dir=header_dir,
+                home=home,
+                use_user_site=use_user_site,
+                no_user_config=isolated,
+                pycompile=pycompile,
+            )
+
+            runner = runner_with_spinner_message(
+                f"Running setup.py install for {req_name}"
+            )
+            with indent_log(), build_env:
+                runner(
+                    cmd=install_args,
+                    cwd=unpacked_source_directory,
+                )
+
+            if not os.path.exists(record_filename):
+                logger.debug("Record file %s not found", record_filename)
+                # Signal to the caller that we didn't install the new package
+                return False
+
+        except Exception as e:
+            # Signal to the caller that we didn't install the new package
+            raise LegacyInstallFailure from e
+
+        # At this point, we have successfully installed the requirement.
+
+        # We intentionally do not use any encoding to read the file because
+        # setuptools writes the file using distutils.file_util.write_file,
+        # which does not specify an encoding.
+        with open(record_filename) as f:
+            record_lines = f.read().splitlines()
+
+    write_installed_files_from_setuptools_record(record_lines, root, req_description)
+    return True
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/wheel.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/wheel.py
new file mode 100644
index 0000000..e191b13
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/install/wheel.py
@@ -0,0 +1,738 @@
+"""Support for installing and building the "wheel" binary package format.
+"""
+
+import collections
+import compileall
+import contextlib
+import csv
+import importlib
+import logging
+import os.path
+import re
+import shutil
+import sys
+import warnings
+from base64 import urlsafe_b64encode
+from email.message import Message
+from itertools import chain, filterfalse, starmap
+from typing import (
+    IO,
+    TYPE_CHECKING,
+    Any,
+    BinaryIO,
+    Callable,
+    Dict,
+    Iterable,
+    Iterator,
+    List,
+    NewType,
+    Optional,
+    Sequence,
+    Set,
+    Tuple,
+    Union,
+    cast,
+)
+from zipfile import ZipFile, ZipInfo
+
+from pip._vendor.distlib.scripts import ScriptMaker
+from pip._vendor.distlib.util import get_export_entry
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.exceptions import InstallationError
+from pip._internal.locations import get_major_minor_version
+from pip._internal.metadata import (
+    BaseDistribution,
+    FilesystemWheel,
+    get_wheel_distribution,
+)
+from pip._internal.models.direct_url import DIRECT_URL_METADATA_NAME, DirectUrl
+from pip._internal.models.scheme import SCHEME_KEYS, Scheme
+from pip._internal.utils.filesystem import adjacent_tmp_file, replace
+from pip._internal.utils.misc import captured_stdout, ensure_dir, hash_file, partition
+from pip._internal.utils.unpacking import (
+    current_umask,
+    is_within_directory,
+    set_extracted_file_to_default_mode_plus_executable,
+    zip_item_is_executable,
+)
+from pip._internal.utils.wheel import parse_wheel
+
+if TYPE_CHECKING:
+    from typing import Protocol
+
+    class File(Protocol):
+        src_record_path: "RecordPath"
+        dest_path: str
+        changed: bool
+
+        def save(self) -> None:
+            pass
+
+
+logger = logging.getLogger(__name__)
+
+RecordPath = NewType("RecordPath", str)
+InstalledCSVRow = Tuple[RecordPath, str, Union[int, str]]
+
+
+def rehash(path: str, blocksize: int = 1 << 20) -> Tuple[str, str]:
+    """Return (encoded_digest, length) for path using hashlib.sha256()"""
+    h, length = hash_file(path, blocksize)
+    digest = "sha256=" + urlsafe_b64encode(h.digest()).decode("latin1").rstrip("=")
+    return (digest, str(length))
+
+
+def csv_io_kwargs(mode: str) -> Dict[str, Any]:
+    """Return keyword arguments to properly open a CSV file
+    in the given mode.
+    """
+    return {"mode": mode, "newline": "", "encoding": "utf-8"}
+
+
+def fix_script(path: str) -> bool:
+    """Replace #!python with #!/path/to/python
+    Return True if file was changed.
+    """
+    # XXX RECORD hashes will need to be updated
+    assert os.path.isfile(path)
+
+    with open(path, "rb") as script:
+        firstline = script.readline()
+        if not firstline.startswith(b"#!python"):
+            return False
+        exename = sys.executable.encode(sys.getfilesystemencoding())
+        firstline = b"#!" + exename + os.linesep.encode("ascii")
+        rest = script.read()
+    with open(path, "wb") as script:
+        script.write(firstline)
+        script.write(rest)
+    return True
+
+
+def wheel_root_is_purelib(metadata: Message) -> bool:
+    return metadata.get("Root-Is-Purelib", "").lower() == "true"
+
+
+def get_entrypoints(dist: BaseDistribution) -> Tuple[Dict[str, str], Dict[str, str]]:
+    console_scripts = {}
+    gui_scripts = {}
+    for entry_point in dist.iter_entry_points():
+        if entry_point.group == "console_scripts":
+            console_scripts[entry_point.name] = entry_point.value
+        elif entry_point.group == "gui_scripts":
+            gui_scripts[entry_point.name] = entry_point.value
+    return console_scripts, gui_scripts
+
+
+def message_about_scripts_not_on_PATH(scripts: Sequence[str]) -> Optional[str]:
+    """Determine if any scripts are not on PATH and format a warning.
+    Returns a warning message if one or more scripts are not on PATH,
+    otherwise None.
+    """
+    if not scripts:
+        return None
+
+    # Group scripts by the path they were installed in
+    grouped_by_dir: Dict[str, Set[str]] = collections.defaultdict(set)
+    for destfile in scripts:
+        parent_dir = os.path.dirname(destfile)
+        script_name = os.path.basename(destfile)
+        grouped_by_dir[parent_dir].add(script_name)
+
+    # We don't want to warn for directories that are on PATH.
+    not_warn_dirs = [
+        os.path.normcase(i).rstrip(os.sep)
+        for i in os.environ.get("PATH", "").split(os.pathsep)
+    ]
+    # If an executable sits with sys.executable, we don't warn for it.
+    #     This covers the case of venv invocations without activating the venv.
+    not_warn_dirs.append(os.path.normcase(os.path.dirname(sys.executable)))
+    warn_for: Dict[str, Set[str]] = {
+        parent_dir: scripts
+        for parent_dir, scripts in grouped_by_dir.items()
+        if os.path.normcase(parent_dir) not in not_warn_dirs
+    }
+    if not warn_for:
+        return None
+
+    # Format a message
+    msg_lines = []
+    for parent_dir, dir_scripts in warn_for.items():
+        sorted_scripts: List[str] = sorted(dir_scripts)
+        if len(sorted_scripts) == 1:
+            start_text = "script {} is".format(sorted_scripts[0])
+        else:
+            start_text = "scripts {} are".format(
+                ", ".join(sorted_scripts[:-1]) + " and " + sorted_scripts[-1]
+            )
+
+        msg_lines.append(
+            "The {} installed in '{}' which is not on PATH.".format(
+                start_text, parent_dir
+            )
+        )
+
+    last_line_fmt = (
+        "Consider adding {} to PATH or, if you prefer "
+        "to suppress this warning, use --no-warn-script-location."
+    )
+    if len(msg_lines) == 1:
+        msg_lines.append(last_line_fmt.format("this directory"))
+    else:
+        msg_lines.append(last_line_fmt.format("these directories"))
+
+    # Add a note if any directory starts with ~
+    warn_for_tilde = any(
+        i[0] == "~" for i in os.environ.get("PATH", "").split(os.pathsep) if i
+    )
+    if warn_for_tilde:
+        tilde_warning_msg = (
+            "NOTE: The current PATH contains path(s) starting with `~`, "
+            "which may not be expanded by all applications."
+        )
+        msg_lines.append(tilde_warning_msg)
+
+    # Returns the formatted multiline message
+    return "\n".join(msg_lines)
+
+
+def _normalized_outrows(
+    outrows: Iterable[InstalledCSVRow],
+) -> List[Tuple[str, str, str]]:
+    """Normalize the given rows of a RECORD file.
+
+    Items in each row are converted into str. Rows are then sorted to make
+    the value more predictable for tests.
+
+    Each row is a 3-tuple (path, hash, size) and corresponds to a record of
+    a RECORD file (see PEP 376 and PEP 427 for details).  For the rows
+    passed to this function, the size can be an integer as an int or string,
+    or the empty string.
+    """
+    # Normally, there should only be one row per path, in which case the
+    # second and third elements don't come into play when sorting.
+    # However, in cases in the wild where a path might happen to occur twice,
+    # we don't want the sort operation to trigger an error (but still want
+    # determinism).  Since the third element can be an int or string, we
+    # coerce each element to a string to avoid a TypeError in this case.
+    # For additional background, see--
+    # https://github.com/pypa/pip/issues/5868
+    return sorted(
+        (record_path, hash_, str(size)) for record_path, hash_, size in outrows
+    )
+
+
+def _record_to_fs_path(record_path: RecordPath) -> str:
+    return record_path
+
+
+def _fs_to_record_path(path: str, relative_to: Optional[str] = None) -> RecordPath:
+    if relative_to is not None:
+        # On Windows, do not handle relative paths if they belong to different
+        # logical disks
+        if (
+            os.path.splitdrive(path)[0].lower()
+            == os.path.splitdrive(relative_to)[0].lower()
+        ):
+            path = os.path.relpath(path, relative_to)
+    path = path.replace(os.path.sep, "/")
+    return cast("RecordPath", path)
+
+
+def get_csv_rows_for_installed(
+    old_csv_rows: List[List[str]],
+    installed: Dict[RecordPath, RecordPath],
+    changed: Set[RecordPath],
+    generated: List[str],
+    lib_dir: str,
+) -> List[InstalledCSVRow]:
+    """
+    :param installed: A map from archive RECORD path to installation RECORD
+        path.
+    """
+    installed_rows: List[InstalledCSVRow] = []
+    for row in old_csv_rows:
+        if len(row) > 3:
+            logger.warning("RECORD line has more than three elements: %s", row)
+        old_record_path = cast("RecordPath", row[0])
+        new_record_path = installed.pop(old_record_path, old_record_path)
+        if new_record_path in changed:
+            digest, length = rehash(_record_to_fs_path(new_record_path))
+        else:
+            digest = row[1] if len(row) > 1 else ""
+            length = row[2] if len(row) > 2 else ""
+        installed_rows.append((new_record_path, digest, length))
+    for f in generated:
+        path = _fs_to_record_path(f, lib_dir)
+        digest, length = rehash(f)
+        installed_rows.append((path, digest, length))
+    for installed_record_path in installed.values():
+        installed_rows.append((installed_record_path, "", ""))
+    return installed_rows
+
+
+def get_console_script_specs(console: Dict[str, str]) -> List[str]:
+    """
+    Given the mapping from entrypoint name to callable, return the relevant
+    console script specs.
+    """
+    # Don't mutate caller's version
+    console = console.copy()
+
+    scripts_to_generate = []
+
+    # Special case pip and setuptools to generate versioned wrappers
+    #
+    # The issue is that some projects (specifically, pip and setuptools) use
+    # code in setup.py to create "versioned" entry points - pip2.7 on Python
+    # 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into
+    # the wheel metadata at build time, and so if the wheel is installed with
+    # a *different* version of Python the entry points will be wrong. The
+    # correct fix for this is to enhance the metadata to be able to describe
+    # such versioned entry points, but that won't happen till Metadata 2.0 is
+    # available.
+    # In the meantime, projects using versioned entry points will either have
+    # incorrect versioned entry points, or they will not be able to distribute
+    # "universal" wheels (i.e., they will need a wheel per Python version).
+    #
+    # Because setuptools and pip are bundled with _ensurepip and virtualenv,
+    # we need to use universal wheels. So, as a stopgap until Metadata 2.0, we
+    # override the versioned entry points in the wheel and generate the
+    # correct ones. This code is purely a short-term measure until Metadata 2.0
+    # is available.
+    #
+    # To add the level of hack in this section of code, in order to support
+    # ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment
+    # variable which will control which version scripts get installed.
+    #
+    # ENSUREPIP_OPTIONS=altinstall
+    #   - Only pipX.Y and easy_install-X.Y will be generated and installed
+    # ENSUREPIP_OPTIONS=install
+    #   - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note
+    #     that this option is technically if ENSUREPIP_OPTIONS is set and is
+    #     not altinstall
+    # DEFAULT
+    #   - The default behavior is to install pip, pipX, pipX.Y, easy_install
+    #     and easy_install-X.Y.
+    pip_script = console.pop("pip", None)
+    if pip_script:
+        if "ENSUREPIP_OPTIONS" not in os.environ:
+            scripts_to_generate.append("pip = " + pip_script)
+
+        if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall":
+            scripts_to_generate.append(
+                "pip{} = {}".format(sys.version_info[0], pip_script)
+            )
+
+        scripts_to_generate.append(f"pip{get_major_minor_version()} = {pip_script}")
+        # Delete any other versioned pip entry points
+        pip_ep = [k for k in console if re.match(r"pip(\d(\.\d)?)?$", k)]
+        for k in pip_ep:
+            del console[k]
+    easy_install_script = console.pop("easy_install", None)
+    if easy_install_script:
+        if "ENSUREPIP_OPTIONS" not in os.environ:
+            scripts_to_generate.append("easy_install = " + easy_install_script)
+
+        scripts_to_generate.append(
+            "easy_install-{} = {}".format(
+                get_major_minor_version(), easy_install_script
+            )
+        )
+        # Delete any other versioned easy_install entry points
+        easy_install_ep = [
+            k for k in console if re.match(r"easy_install(-\d\.\d)?$", k)
+        ]
+        for k in easy_install_ep:
+            del console[k]
+
+    # Generate the console entry points specified in the wheel
+    scripts_to_generate.extend(starmap("{} = {}".format, console.items()))
+
+    return scripts_to_generate
+
+
+class ZipBackedFile:
+    def __init__(
+        self, src_record_path: RecordPath, dest_path: str, zip_file: ZipFile
+    ) -> None:
+        self.src_record_path = src_record_path
+        self.dest_path = dest_path
+        self._zip_file = zip_file
+        self.changed = False
+
+    def _getinfo(self) -> ZipInfo:
+        return self._zip_file.getinfo(self.src_record_path)
+
+    def save(self) -> None:
+        # directory creation is lazy and after file filtering
+        # to ensure we don't install empty dirs; empty dirs can't be
+        # uninstalled.
+        parent_dir = os.path.dirname(self.dest_path)
+        ensure_dir(parent_dir)
+
+        # When we open the output file below, any existing file is truncated
+        # before we start writing the new contents. This is fine in most
+        # cases, but can cause a segfault if pip has loaded a shared
+        # object (e.g. from pyopenssl through its vendored urllib3)
+        # Since the shared object is mmap'd an attempt to call a
+        # symbol in it will then cause a segfault. Unlinking the file
+        # allows writing of new contents while allowing the process to
+        # continue to use the old copy.
+        if os.path.exists(self.dest_path):
+            os.unlink(self.dest_path)
+
+        zipinfo = self._getinfo()
+
+        with self._zip_file.open(zipinfo) as f:
+            with open(self.dest_path, "wb") as dest:
+                shutil.copyfileobj(f, dest)
+
+        if zip_item_is_executable(zipinfo):
+            set_extracted_file_to_default_mode_plus_executable(self.dest_path)
+
+
+class ScriptFile:
+    def __init__(self, file: "File") -> None:
+        self._file = file
+        self.src_record_path = self._file.src_record_path
+        self.dest_path = self._file.dest_path
+        self.changed = False
+
+    def save(self) -> None:
+        self._file.save()
+        self.changed = fix_script(self.dest_path)
+
+
+class MissingCallableSuffix(InstallationError):
+    def __init__(self, entry_point: str) -> None:
+        super().__init__(
+            "Invalid script entry point: {} - A callable "
+            "suffix is required. Cf https://packaging.python.org/"
+            "specifications/entry-points/#use-for-scripts for more "
+            "information.".format(entry_point)
+        )
+
+
+def _raise_for_invalid_entrypoint(specification: str) -> None:
+    entry = get_export_entry(specification)
+    if entry is not None and entry.suffix is None:
+        raise MissingCallableSuffix(str(entry))
+
+
+class PipScriptMaker(ScriptMaker):
+    def make(self, specification: str, options: Dict[str, Any] = None) -> List[str]:
+        _raise_for_invalid_entrypoint(specification)
+        return super().make(specification, options)
+
+
+def _install_wheel(
+    name: str,
+    wheel_zip: ZipFile,
+    wheel_path: str,
+    scheme: Scheme,
+    pycompile: bool = True,
+    warn_script_location: bool = True,
+    direct_url: Optional[DirectUrl] = None,
+    requested: bool = False,
+) -> None:
+    """Install a wheel.
+
+    :param name: Name of the project to install
+    :param wheel_zip: open ZipFile for wheel being installed
+    :param scheme: Distutils scheme dictating the install directories
+    :param req_description: String used in place of the requirement, for
+        logging
+    :param pycompile: Whether to byte-compile installed Python files
+    :param warn_script_location: Whether to check that scripts are installed
+        into a directory on PATH
+    :raises UnsupportedWheel:
+        * when the directory holds an unpacked wheel with incompatible
+          Wheel-Version
+        * when the .dist-info dir does not match the wheel
+    """
+    info_dir, metadata = parse_wheel(wheel_zip, name)
+
+    if wheel_root_is_purelib(metadata):
+        lib_dir = scheme.purelib
+    else:
+        lib_dir = scheme.platlib
+
+    # Record details of the files moved
+    #   installed = files copied from the wheel to the destination
+    #   changed = files changed while installing (scripts #! line typically)
+    #   generated = files newly generated during the install (script wrappers)
+    installed: Dict[RecordPath, RecordPath] = {}
+    changed: Set[RecordPath] = set()
+    generated: List[str] = []
+
+    def record_installed(
+        srcfile: RecordPath, destfile: str, modified: bool = False
+    ) -> None:
+        """Map archive RECORD paths to installation RECORD paths."""
+        newpath = _fs_to_record_path(destfile, lib_dir)
+        installed[srcfile] = newpath
+        if modified:
+            changed.add(_fs_to_record_path(destfile))
+
+    def is_dir_path(path: RecordPath) -> bool:
+        return path.endswith("/")
+
+    def assert_no_path_traversal(dest_dir_path: str, target_path: str) -> None:
+        if not is_within_directory(dest_dir_path, target_path):
+            message = (
+                "The wheel {!r} has a file {!r} trying to install"
+                " outside the target directory {!r}"
+            )
+            raise InstallationError(
+                message.format(wheel_path, target_path, dest_dir_path)
+            )
+
+    def root_scheme_file_maker(
+        zip_file: ZipFile, dest: str
+    ) -> Callable[[RecordPath], "File"]:
+        def make_root_scheme_file(record_path: RecordPath) -> "File":
+            normed_path = os.path.normpath(record_path)
+            dest_path = os.path.join(dest, normed_path)
+            assert_no_path_traversal(dest, dest_path)
+            return ZipBackedFile(record_path, dest_path, zip_file)
+
+        return make_root_scheme_file
+
+    def data_scheme_file_maker(
+        zip_file: ZipFile, scheme: Scheme
+    ) -> Callable[[RecordPath], "File"]:
+        scheme_paths = {key: getattr(scheme, key) for key in SCHEME_KEYS}
+
+        def make_data_scheme_file(record_path: RecordPath) -> "File":
+            normed_path = os.path.normpath(record_path)
+            try:
+                _, scheme_key, dest_subpath = normed_path.split(os.path.sep, 2)
+            except ValueError:
+                message = (
+                    "Unexpected file in {}: {!r}. .data directory contents"
+                    " should be named like: '/'."
+                ).format(wheel_path, record_path)
+                raise InstallationError(message)
+
+            try:
+                scheme_path = scheme_paths[scheme_key]
+            except KeyError:
+                valid_scheme_keys = ", ".join(sorted(scheme_paths))
+                message = (
+                    "Unknown scheme key used in {}: {} (for file {!r}). .data"
+                    " directory contents should be in subdirectories named"
+                    " with a valid scheme key ({})"
+                ).format(wheel_path, scheme_key, record_path, valid_scheme_keys)
+                raise InstallationError(message)
+
+            dest_path = os.path.join(scheme_path, dest_subpath)
+            assert_no_path_traversal(scheme_path, dest_path)
+            return ZipBackedFile(record_path, dest_path, zip_file)
+
+        return make_data_scheme_file
+
+    def is_data_scheme_path(path: RecordPath) -> bool:
+        return path.split("/", 1)[0].endswith(".data")
+
+    paths = cast(List[RecordPath], wheel_zip.namelist())
+    file_paths = filterfalse(is_dir_path, paths)
+    root_scheme_paths, data_scheme_paths = partition(is_data_scheme_path, file_paths)
+
+    make_root_scheme_file = root_scheme_file_maker(wheel_zip, lib_dir)
+    files: Iterator[File] = map(make_root_scheme_file, root_scheme_paths)
+
+    def is_script_scheme_path(path: RecordPath) -> bool:
+        parts = path.split("/", 2)
+        return len(parts) > 2 and parts[0].endswith(".data") and parts[1] == "scripts"
+
+    other_scheme_paths, script_scheme_paths = partition(
+        is_script_scheme_path, data_scheme_paths
+    )
+
+    make_data_scheme_file = data_scheme_file_maker(wheel_zip, scheme)
+    other_scheme_files = map(make_data_scheme_file, other_scheme_paths)
+    files = chain(files, other_scheme_files)
+
+    # Get the defined entry points
+    distribution = get_wheel_distribution(
+        FilesystemWheel(wheel_path),
+        canonicalize_name(name),
+    )
+    console, gui = get_entrypoints(distribution)
+
+    def is_entrypoint_wrapper(file: "File") -> bool:
+        # EP, EP.exe and EP-script.py are scripts generated for
+        # entry point EP by setuptools
+        path = file.dest_path
+        name = os.path.basename(path)
+        if name.lower().endswith(".exe"):
+            matchname = name[:-4]
+        elif name.lower().endswith("-script.py"):
+            matchname = name[:-10]
+        elif name.lower().endswith(".pya"):
+            matchname = name[:-4]
+        else:
+            matchname = name
+        # Ignore setuptools-generated scripts
+        return matchname in console or matchname in gui
+
+    script_scheme_files: Iterator[File] = map(
+        make_data_scheme_file, script_scheme_paths
+    )
+    script_scheme_files = filterfalse(is_entrypoint_wrapper, script_scheme_files)
+    script_scheme_files = map(ScriptFile, script_scheme_files)
+    files = chain(files, script_scheme_files)
+
+    for file in files:
+        file.save()
+        record_installed(file.src_record_path, file.dest_path, file.changed)
+
+    def pyc_source_file_paths() -> Iterator[str]:
+        # We de-duplicate installation paths, since there can be overlap (e.g.
+        # file in .data maps to same location as file in wheel root).
+        # Sorting installation paths makes it easier to reproduce and debug
+        # issues related to permissions on existing files.
+        for installed_path in sorted(set(installed.values())):
+            full_installed_path = os.path.join(lib_dir, installed_path)
+            if not os.path.isfile(full_installed_path):
+                continue
+            if not full_installed_path.endswith(".py"):
+                continue
+            yield full_installed_path
+
+    def pyc_output_path(path: str) -> str:
+        """Return the path the pyc file would have been written to."""
+        return importlib.util.cache_from_source(path)
+
+    # Compile all of the pyc files for the installed files
+    if pycompile:
+        with captured_stdout() as stdout:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("ignore")
+                for path in pyc_source_file_paths():
+                    success = compileall.compile_file(path, force=True, quiet=True)
+                    if success:
+                        pyc_path = pyc_output_path(path)
+                        assert os.path.exists(pyc_path)
+                        pyc_record_path = cast(
+                            "RecordPath", pyc_path.replace(os.path.sep, "/")
+                        )
+                        record_installed(pyc_record_path, pyc_path)
+        logger.debug(stdout.getvalue())
+
+    maker = PipScriptMaker(None, scheme.scripts)
+
+    # Ensure old scripts are overwritten.
+    # See https://github.com/pypa/pip/issues/1800
+    maker.clobber = True
+
+    # Ensure we don't generate any variants for scripts because this is almost
+    # never what somebody wants.
+    # See https://bitbucket.org/pypa/distlib/issue/35/
+    maker.variants = {""}
+
+    # This is required because otherwise distlib creates scripts that are not
+    # executable.
+    # See https://bitbucket.org/pypa/distlib/issue/32/
+    maker.set_mode = True
+
+    # Generate the console and GUI entry points specified in the wheel
+    scripts_to_generate = get_console_script_specs(console)
+
+    gui_scripts_to_generate = list(starmap("{} = {}".format, gui.items()))
+
+    generated_console_scripts = maker.make_multiple(scripts_to_generate)
+    generated.extend(generated_console_scripts)
+
+    generated.extend(maker.make_multiple(gui_scripts_to_generate, {"gui": True}))
+
+    if warn_script_location:
+        msg = message_about_scripts_not_on_PATH(generated_console_scripts)
+        if msg is not None:
+            logger.warning(msg)
+
+    generated_file_mode = 0o666 & ~current_umask()
+
+    @contextlib.contextmanager
+    def _generate_file(path: str, **kwargs: Any) -> Iterator[BinaryIO]:
+        with adjacent_tmp_file(path, **kwargs) as f:
+            yield f
+        os.chmod(f.name, generated_file_mode)
+        replace(f.name, path)
+
+    dest_info_dir = os.path.join(lib_dir, info_dir)
+
+    # Record pip as the installer
+    installer_path = os.path.join(dest_info_dir, "INSTALLER")
+    with _generate_file(installer_path) as installer_file:
+        installer_file.write(b"pip\n")
+    generated.append(installer_path)
+
+    # Record the PEP 610 direct URL reference
+    if direct_url is not None:
+        direct_url_path = os.path.join(dest_info_dir, DIRECT_URL_METADATA_NAME)
+        with _generate_file(direct_url_path) as direct_url_file:
+            direct_url_file.write(direct_url.to_json().encode("utf-8"))
+        generated.append(direct_url_path)
+
+    # Record the REQUESTED file
+    if requested:
+        requested_path = os.path.join(dest_info_dir, "REQUESTED")
+        with open(requested_path, "wb"):
+            pass
+        generated.append(requested_path)
+
+    record_text = distribution.read_text("RECORD")
+    record_rows = list(csv.reader(record_text.splitlines()))
+
+    rows = get_csv_rows_for_installed(
+        record_rows,
+        installed=installed,
+        changed=changed,
+        generated=generated,
+        lib_dir=lib_dir,
+    )
+
+    # Record details of all files installed
+    record_path = os.path.join(dest_info_dir, "RECORD")
+
+    with _generate_file(record_path, **csv_io_kwargs("w")) as record_file:
+        # Explicitly cast to typing.IO[str] as a workaround for the mypy error:
+        # "writer" has incompatible type "BinaryIO"; expected "_Writer"
+        writer = csv.writer(cast("IO[str]", record_file))
+        writer.writerows(_normalized_outrows(rows))
+
+
+@contextlib.contextmanager
+def req_error_context(req_description: str) -> Iterator[None]:
+    try:
+        yield
+    except InstallationError as e:
+        message = "For req: {}. {}".format(req_description, e.args[0])
+        raise InstallationError(message) from e
+
+
+def install_wheel(
+    name: str,
+    wheel_path: str,
+    scheme: Scheme,
+    req_description: str,
+    pycompile: bool = True,
+    warn_script_location: bool = True,
+    direct_url: Optional[DirectUrl] = None,
+    requested: bool = False,
+) -> None:
+    with ZipFile(wheel_path, allowZip64=True) as z:
+        with req_error_context(req_description):
+            _install_wheel(
+                name=name,
+                wheel_zip=z,
+                wheel_path=wheel_path,
+                scheme=scheme,
+                pycompile=pycompile,
+                warn_script_location=warn_script_location,
+                direct_url=direct_url,
+                requested=requested,
+            )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/operations/prepare.py b/utils/python-venv/Lib/site-packages/pip/_internal/operations/prepare.py
new file mode 100644
index 0000000..34cf9a5
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/operations/prepare.py
@@ -0,0 +1,632 @@
+"""Prepares a distribution for installation
+"""
+
+# The following comment should be removed at some point in the future.
+# mypy: strict-optional=False
+
+import logging
+import mimetypes
+import os
+import shutil
+from typing import Dict, Iterable, List, Optional
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.distributions import make_distribution_for_install_requirement
+from pip._internal.distributions.installed import InstalledDistribution
+from pip._internal.exceptions import (
+    DirectoryUrlHashUnsupported,
+    HashMismatch,
+    HashUnpinned,
+    InstallationError,
+    NetworkConnectionError,
+    PreviousBuildDirError,
+    VcsHashUnsupported,
+)
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.metadata import BaseDistribution
+from pip._internal.models.link import Link
+from pip._internal.models.wheel import Wheel
+from pip._internal.network.download import BatchDownloader, Downloader
+from pip._internal.network.lazy_wheel import (
+    HTTPRangeRequestUnsupported,
+    dist_from_wheel_url,
+)
+from pip._internal.network.session import PipSession
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.req.req_tracker import RequirementTracker
+from pip._internal.utils.filesystem import copy2_fixed
+from pip._internal.utils.hashes import Hashes, MissingHashes
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import display_path, hide_url, is_installable_dir, rmtree
+from pip._internal.utils.temp_dir import TempDirectory
+from pip._internal.utils.unpacking import unpack_file
+from pip._internal.vcs import vcs
+
+logger = logging.getLogger(__name__)
+
+
+def _get_prepared_distribution(
+    req: InstallRequirement,
+    req_tracker: RequirementTracker,
+    finder: PackageFinder,
+    build_isolation: bool,
+) -> BaseDistribution:
+    """Prepare a distribution for installation."""
+    abstract_dist = make_distribution_for_install_requirement(req)
+    with req_tracker.track(req):
+        abstract_dist.prepare_distribution_metadata(finder, build_isolation)
+    return abstract_dist.get_metadata_distribution()
+
+
+def unpack_vcs_link(link: Link, location: str) -> None:
+    vcs_backend = vcs.get_backend_for_scheme(link.scheme)
+    assert vcs_backend is not None
+    vcs_backend.unpack(location, url=hide_url(link.url))
+
+
+class File:
+    def __init__(self, path: str, content_type: Optional[str]) -> None:
+        self.path = path
+        if content_type is None:
+            self.content_type = mimetypes.guess_type(path)[0]
+        else:
+            self.content_type = content_type
+
+
+def get_http_url(
+    link: Link,
+    download: Downloader,
+    download_dir: Optional[str] = None,
+    hashes: Optional[Hashes] = None,
+) -> File:
+    temp_dir = TempDirectory(kind="unpack", globally_managed=True)
+    # If a download dir is specified, is the file already downloaded there?
+    already_downloaded_path = None
+    if download_dir:
+        already_downloaded_path = _check_download_dir(link, download_dir, hashes)
+
+    if already_downloaded_path:
+        from_path = already_downloaded_path
+        content_type = None
+    else:
+        # let's download to a tmp dir
+        from_path, content_type = download(link, temp_dir.path)
+        if hashes:
+            hashes.check_against_path(from_path)
+
+    return File(from_path, content_type)
+
+
+def _copy2_ignoring_special_files(src: str, dest: str) -> None:
+    """Copying special files is not supported, but as a convenience to users
+    we skip errors copying them. This supports tools that may create e.g.
+    socket files in the project source directory.
+    """
+    try:
+        copy2_fixed(src, dest)
+    except shutil.SpecialFileError as e:
+        # SpecialFileError may be raised due to either the source or
+        # destination. If the destination was the cause then we would actually
+        # care, but since the destination directory is deleted prior to
+        # copy we ignore all of them assuming it is caused by the source.
+        logger.warning(
+            "Ignoring special file error '%s' encountered copying %s to %s.",
+            str(e),
+            src,
+            dest,
+        )
+
+
+def _copy_source_tree(source: str, target: str) -> None:
+    target_abspath = os.path.abspath(target)
+    target_basename = os.path.basename(target_abspath)
+    target_dirname = os.path.dirname(target_abspath)
+
+    def ignore(d: str, names: List[str]) -> List[str]:
+        skipped: List[str] = []
+        if d == source:
+            # Pulling in those directories can potentially be very slow,
+            # exclude the following directories if they appear in the top
+            # level dir (and only it).
+            # See discussion at https://github.com/pypa/pip/pull/6770
+            skipped += [".tox", ".nox"]
+        if os.path.abspath(d) == target_dirname:
+            # Prevent an infinite recursion if the target is in source.
+            # This can happen when TMPDIR is set to ${PWD}/...
+            # and we copy PWD to TMPDIR.
+            skipped += [target_basename]
+        return skipped
+
+    shutil.copytree(
+        source,
+        target,
+        ignore=ignore,
+        symlinks=True,
+        copy_function=_copy2_ignoring_special_files,
+    )
+
+
+def get_file_url(
+    link: Link, download_dir: Optional[str] = None, hashes: Optional[Hashes] = None
+) -> File:
+    """Get file and optionally check its hash."""
+    # If a download dir is specified, is the file already there and valid?
+    already_downloaded_path = None
+    if download_dir:
+        already_downloaded_path = _check_download_dir(link, download_dir, hashes)
+
+    if already_downloaded_path:
+        from_path = already_downloaded_path
+    else:
+        from_path = link.file_path
+
+    # If --require-hashes is off, `hashes` is either empty, the
+    # link's embedded hash, or MissingHashes; it is required to
+    # match. If --require-hashes is on, we are satisfied by any
+    # hash in `hashes` matching: a URL-based or an option-based
+    # one; no internet-sourced hash will be in `hashes`.
+    if hashes:
+        hashes.check_against_path(from_path)
+    return File(from_path, None)
+
+
+def unpack_url(
+    link: Link,
+    location: str,
+    download: Downloader,
+    download_dir: Optional[str] = None,
+    hashes: Optional[Hashes] = None,
+) -> Optional[File]:
+    """Unpack link into location, downloading if required.
+
+    :param hashes: A Hashes object, one of whose embedded hashes must match,
+        or HashMismatch will be raised. If the Hashes is empty, no matches are
+        required, and unhashable types of requirements (like VCS ones, which
+        would ordinarily raise HashUnsupported) are allowed.
+    """
+    # non-editable vcs urls
+    if link.is_vcs:
+        unpack_vcs_link(link, location)
+        return None
+
+    # Once out-of-tree-builds are no longer supported, could potentially
+    # replace the below condition with `assert not link.is_existing_dir`
+    # - unpack_url does not need to be called for in-tree-builds.
+    #
+    # As further cleanup, _copy_source_tree and accompanying tests can
+    # be removed.
+    #
+    # TODO when use-deprecated=out-of-tree-build is removed
+    if link.is_existing_dir():
+        if os.path.isdir(location):
+            rmtree(location)
+        _copy_source_tree(link.file_path, location)
+        return None
+
+    # file urls
+    if link.is_file:
+        file = get_file_url(link, download_dir, hashes=hashes)
+
+    # http urls
+    else:
+        file = get_http_url(
+            link,
+            download,
+            download_dir,
+            hashes=hashes,
+        )
+
+    # unpack the archive to the build dir location. even when only downloading
+    # archives, they have to be unpacked to parse dependencies, except wheels
+    if not link.is_wheel:
+        unpack_file(file.path, location, file.content_type)
+
+    return file
+
+
+def _check_download_dir(
+    link: Link, download_dir: str, hashes: Optional[Hashes]
+) -> Optional[str]:
+    """Check download_dir for previously downloaded file with correct hash
+    If a correct file is found return its path else None
+    """
+    download_path = os.path.join(download_dir, link.filename)
+
+    if not os.path.exists(download_path):
+        return None
+
+    # If already downloaded, does its hash match?
+    logger.info("File was already downloaded %s", download_path)
+    if hashes:
+        try:
+            hashes.check_against_path(download_path)
+        except HashMismatch:
+            logger.warning(
+                "Previously-downloaded file %s has bad hash. Re-downloading.",
+                download_path,
+            )
+            os.unlink(download_path)
+            return None
+    return download_path
+
+
+class RequirementPreparer:
+    """Prepares a Requirement"""
+
+    def __init__(
+        self,
+        build_dir: str,
+        download_dir: Optional[str],
+        src_dir: str,
+        build_isolation: bool,
+        req_tracker: RequirementTracker,
+        session: PipSession,
+        progress_bar: str,
+        finder: PackageFinder,
+        require_hashes: bool,
+        use_user_site: bool,
+        lazy_wheel: bool,
+        in_tree_build: bool,
+    ) -> None:
+        super().__init__()
+
+        self.src_dir = src_dir
+        self.build_dir = build_dir
+        self.req_tracker = req_tracker
+        self._session = session
+        self._download = Downloader(session, progress_bar)
+        self._batch_download = BatchDownloader(session, progress_bar)
+        self.finder = finder
+
+        # Where still-packed archives should be written to. If None, they are
+        # not saved, and are deleted immediately after unpacking.
+        self.download_dir = download_dir
+
+        # Is build isolation allowed?
+        self.build_isolation = build_isolation
+
+        # Should hash-checking be required?
+        self.require_hashes = require_hashes
+
+        # Should install in user site-packages?
+        self.use_user_site = use_user_site
+
+        # Should wheels be downloaded lazily?
+        self.use_lazy_wheel = lazy_wheel
+
+        # Should in-tree builds be used for local paths?
+        self.in_tree_build = in_tree_build
+
+        # Memoized downloaded files, as mapping of url: path.
+        self._downloaded: Dict[str, str] = {}
+
+        # Previous "header" printed for a link-based InstallRequirement
+        self._previous_requirement_header = ("", "")
+
+    def _log_preparing_link(self, req: InstallRequirement) -> None:
+        """Provide context for the requirement being prepared."""
+        if req.link.is_file and not req.original_link_is_in_wheel_cache:
+            message = "Processing %s"
+            information = str(display_path(req.link.file_path))
+        else:
+            message = "Collecting %s"
+            information = str(req.req or req)
+
+        if (message, information) != self._previous_requirement_header:
+            self._previous_requirement_header = (message, information)
+            logger.info(message, information)
+
+        if req.original_link_is_in_wheel_cache:
+            with indent_log():
+                logger.info("Using cached %s", req.link.filename)
+
+    def _ensure_link_req_src_dir(
+        self, req: InstallRequirement, parallel_builds: bool
+    ) -> None:
+        """Ensure source_dir of a linked InstallRequirement."""
+        # Since source_dir is only set for editable requirements.
+        if req.link.is_wheel:
+            # We don't need to unpack wheels, so no need for a source
+            # directory.
+            return
+        assert req.source_dir is None
+        if req.link.is_existing_dir() and self.in_tree_build:
+            # build local directories in-tree
+            req.source_dir = req.link.file_path
+            return
+
+        # We always delete unpacked sdists after pip runs.
+        req.ensure_has_source_dir(
+            self.build_dir,
+            autodelete=True,
+            parallel_builds=parallel_builds,
+        )
+
+        # If a checkout exists, it's unwise to keep going.  version
+        # inconsistencies are logged later, but do not fail the
+        # installation.
+        # FIXME: this won't upgrade when there's an existing
+        # package unpacked in `req.source_dir`
+        # TODO: this check is now probably dead code
+        if is_installable_dir(req.source_dir):
+            raise PreviousBuildDirError(
+                "pip can't proceed with requirements '{}' due to a"
+                "pre-existing build directory ({}). This is likely "
+                "due to a previous installation that failed . pip is "
+                "being responsible and not assuming it can delete this. "
+                "Please delete it and try again.".format(req, req.source_dir)
+            )
+
+    def _get_linked_req_hashes(self, req: InstallRequirement) -> Hashes:
+        # By the time this is called, the requirement's link should have
+        # been checked so we can tell what kind of requirements req is
+        # and raise some more informative errors than otherwise.
+        # (For example, we can raise VcsHashUnsupported for a VCS URL
+        # rather than HashMissing.)
+        if not self.require_hashes:
+            return req.hashes(trust_internet=True)
+
+        # We could check these first 2 conditions inside unpack_url
+        # and save repetition of conditions, but then we would
+        # report less-useful error messages for unhashable
+        # requirements, complaining that there's no hash provided.
+        if req.link.is_vcs:
+            raise VcsHashUnsupported()
+        if req.link.is_existing_dir():
+            raise DirectoryUrlHashUnsupported()
+
+        # Unpinned packages are asking for trouble when a new version
+        # is uploaded.  This isn't a security check, but it saves users
+        # a surprising hash mismatch in the future.
+        # file:/// URLs aren't pinnable, so don't complain about them
+        # not being pinned.
+        if req.original_link is None and not req.is_pinned:
+            raise HashUnpinned()
+
+        # If known-good hashes are missing for this requirement,
+        # shim it with a facade object that will provoke hash
+        # computation and then raise a HashMissing exception
+        # showing the user what the hash should be.
+        return req.hashes(trust_internet=False) or MissingHashes()
+
+    def _fetch_metadata_using_lazy_wheel(
+        self,
+        link: Link,
+    ) -> Optional[BaseDistribution]:
+        """Fetch metadata using lazy wheel, if possible."""
+        if not self.use_lazy_wheel:
+            return None
+        if self.require_hashes:
+            logger.debug("Lazy wheel is not used as hash checking is required")
+            return None
+        if link.is_file or not link.is_wheel:
+            logger.debug(
+                "Lazy wheel is not used as %r does not points to a remote wheel",
+                link,
+            )
+            return None
+
+        wheel = Wheel(link.filename)
+        name = canonicalize_name(wheel.name)
+        logger.info(
+            "Obtaining dependency information from %s %s",
+            name,
+            wheel.version,
+        )
+        url = link.url.split("#", 1)[0]
+        try:
+            return dist_from_wheel_url(name, url, self._session)
+        except HTTPRangeRequestUnsupported:
+            logger.debug("%s does not support range requests", url)
+            return None
+
+    def _complete_partial_requirements(
+        self,
+        partially_downloaded_reqs: Iterable[InstallRequirement],
+        parallel_builds: bool = False,
+    ) -> None:
+        """Download any requirements which were only fetched by metadata."""
+        # Download to a temporary directory. These will be copied over as
+        # needed for downstream 'download', 'wheel', and 'install' commands.
+        temp_dir = TempDirectory(kind="unpack", globally_managed=True).path
+
+        # Map each link to the requirement that owns it. This allows us to set
+        # `req.local_file_path` on the appropriate requirement after passing
+        # all the links at once into BatchDownloader.
+        links_to_fully_download: Dict[Link, InstallRequirement] = {}
+        for req in partially_downloaded_reqs:
+            assert req.link
+            links_to_fully_download[req.link] = req
+
+        batch_download = self._batch_download(
+            links_to_fully_download.keys(),
+            temp_dir,
+        )
+        for link, (filepath, _) in batch_download:
+            logger.debug("Downloading link %s to %s", link, filepath)
+            req = links_to_fully_download[link]
+            req.local_file_path = filepath
+
+        # This step is necessary to ensure all lazy wheels are processed
+        # successfully by the 'download', 'wheel', and 'install' commands.
+        for req in partially_downloaded_reqs:
+            self._prepare_linked_requirement(req, parallel_builds)
+
+    def prepare_linked_requirement(
+        self, req: InstallRequirement, parallel_builds: bool = False
+    ) -> BaseDistribution:
+        """Prepare a requirement to be obtained from req.link."""
+        assert req.link
+        link = req.link
+        self._log_preparing_link(req)
+        with indent_log():
+            # Check if the relevant file is already available
+            # in the download directory
+            file_path = None
+            if self.download_dir is not None and link.is_wheel:
+                hashes = self._get_linked_req_hashes(req)
+                file_path = _check_download_dir(req.link, self.download_dir, hashes)
+
+            if file_path is not None:
+                # The file is already available, so mark it as downloaded
+                self._downloaded[req.link.url] = file_path
+            else:
+                # The file is not available, attempt to fetch only metadata
+                wheel_dist = self._fetch_metadata_using_lazy_wheel(link)
+                if wheel_dist is not None:
+                    req.needs_more_preparation = True
+                    return wheel_dist
+
+            # None of the optimizations worked, fully prepare the requirement
+            return self._prepare_linked_requirement(req, parallel_builds)
+
+    def prepare_linked_requirements_more(
+        self, reqs: Iterable[InstallRequirement], parallel_builds: bool = False
+    ) -> None:
+        """Prepare linked requirements more, if needed."""
+        reqs = [req for req in reqs if req.needs_more_preparation]
+        for req in reqs:
+            # Determine if any of these requirements were already downloaded.
+            if self.download_dir is not None and req.link.is_wheel:
+                hashes = self._get_linked_req_hashes(req)
+                file_path = _check_download_dir(req.link, self.download_dir, hashes)
+                if file_path is not None:
+                    self._downloaded[req.link.url] = file_path
+                    req.needs_more_preparation = False
+
+        # Prepare requirements we found were already downloaded for some
+        # reason. The other downloads will be completed separately.
+        partially_downloaded_reqs: List[InstallRequirement] = []
+        for req in reqs:
+            if req.needs_more_preparation:
+                partially_downloaded_reqs.append(req)
+            else:
+                self._prepare_linked_requirement(req, parallel_builds)
+
+        # TODO: separate this part out from RequirementPreparer when the v1
+        # resolver can be removed!
+        self._complete_partial_requirements(
+            partially_downloaded_reqs,
+            parallel_builds=parallel_builds,
+        )
+
+    def _prepare_linked_requirement(
+        self, req: InstallRequirement, parallel_builds: bool
+    ) -> BaseDistribution:
+        assert req.link
+        link = req.link
+
+        self._ensure_link_req_src_dir(req, parallel_builds)
+        hashes = self._get_linked_req_hashes(req)
+
+        if link.is_existing_dir() and self.in_tree_build:
+            local_file = None
+        elif link.url not in self._downloaded:
+            try:
+                local_file = unpack_url(
+                    link, req.source_dir, self._download, self.download_dir, hashes
+                )
+            except NetworkConnectionError as exc:
+                raise InstallationError(
+                    "Could not install requirement {} because of HTTP "
+                    "error {} for URL {}".format(req, exc, link)
+                )
+        else:
+            file_path = self._downloaded[link.url]
+            if hashes:
+                hashes.check_against_path(file_path)
+            local_file = File(file_path, content_type=None)
+
+        # For use in later processing,
+        # preserve the file path on the requirement.
+        if local_file:
+            req.local_file_path = local_file.path
+
+        dist = _get_prepared_distribution(
+            req,
+            self.req_tracker,
+            self.finder,
+            self.build_isolation,
+        )
+        return dist
+
+    def save_linked_requirement(self, req: InstallRequirement) -> None:
+        assert self.download_dir is not None
+        assert req.link is not None
+        link = req.link
+        if link.is_vcs or (link.is_existing_dir() and req.editable):
+            # Make a .zip of the source_dir we already created.
+            req.archive(self.download_dir)
+            return
+
+        if link.is_existing_dir():
+            logger.debug(
+                "Not copying link to destination directory "
+                "since it is a directory: %s",
+                link,
+            )
+            return
+        if req.local_file_path is None:
+            # No distribution was downloaded for this requirement.
+            return
+
+        download_location = os.path.join(self.download_dir, link.filename)
+        if not os.path.exists(download_location):
+            shutil.copy(req.local_file_path, download_location)
+            download_path = display_path(download_location)
+            logger.info("Saved %s", download_path)
+
+    def prepare_editable_requirement(
+        self,
+        req: InstallRequirement,
+    ) -> BaseDistribution:
+        """Prepare an editable requirement."""
+        assert req.editable, "cannot prepare a non-editable req as editable"
+
+        logger.info("Obtaining %s", req)
+
+        with indent_log():
+            if self.require_hashes:
+                raise InstallationError(
+                    "The editable requirement {} cannot be installed when "
+                    "requiring hashes, because there is no single file to "
+                    "hash.".format(req)
+                )
+            req.ensure_has_source_dir(self.src_dir)
+            req.update_editable()
+
+            dist = _get_prepared_distribution(
+                req,
+                self.req_tracker,
+                self.finder,
+                self.build_isolation,
+            )
+
+            req.check_if_exists(self.use_user_site)
+
+        return dist
+
+    def prepare_installed_requirement(
+        self,
+        req: InstallRequirement,
+        skip_reason: str,
+    ) -> BaseDistribution:
+        """Prepare an already-installed requirement."""
+        assert req.satisfied_by, "req should have been satisfied but isn't"
+        assert skip_reason is not None, (
+            "did not get skip reason skipped but req.satisfied_by "
+            "is set to {}".format(req.satisfied_by)
+        )
+        logger.info(
+            "Requirement %s: %s (%s)", skip_reason, req, req.satisfied_by.version
+        )
+        with indent_log():
+            if self.require_hashes:
+                logger.debug(
+                    "Since it is already installed, we are trusting this "
+                    "package without checking its hash. To ensure a "
+                    "completely repeatable environment, install into an "
+                    "empty virtualenv."
+                )
+            return InstalledDistribution(req).get_metadata_distribution()
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/pyproject.py b/utils/python-venv/Lib/site-packages/pip/_internal/pyproject.py
new file mode 100644
index 0000000..31534a3
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/pyproject.py
@@ -0,0 +1,183 @@
+import os
+from collections import namedtuple
+from typing import Any, List, Optional
+
+from pip._vendor import tomli
+from pip._vendor.packaging.requirements import InvalidRequirement, Requirement
+
+from pip._internal.exceptions import InstallationError
+
+
+def _is_list_of_str(obj: Any) -> bool:
+    return isinstance(obj, list) and all(isinstance(item, str) for item in obj)
+
+
+def make_pyproject_path(unpacked_source_directory: str) -> str:
+    return os.path.join(unpacked_source_directory, "pyproject.toml")
+
+
+BuildSystemDetails = namedtuple(
+    "BuildSystemDetails", ["requires", "backend", "check", "backend_path"]
+)
+
+
+def load_pyproject_toml(
+    use_pep517: Optional[bool], pyproject_toml: str, setup_py: str, req_name: str
+) -> Optional[BuildSystemDetails]:
+    """Load the pyproject.toml file.
+
+    Parameters:
+        use_pep517 - Has the user requested PEP 517 processing? None
+                     means the user hasn't explicitly specified.
+        pyproject_toml - Location of the project's pyproject.toml file
+        setup_py - Location of the project's setup.py file
+        req_name - The name of the requirement we're processing (for
+                   error reporting)
+
+    Returns:
+        None if we should use the legacy code path, otherwise a tuple
+        (
+            requirements from pyproject.toml,
+            name of PEP 517 backend,
+            requirements we should check are installed after setting
+                up the build environment
+            directory paths to import the backend from (backend-path),
+                relative to the project root.
+        )
+    """
+    has_pyproject = os.path.isfile(pyproject_toml)
+    has_setup = os.path.isfile(setup_py)
+
+    if not has_pyproject and not has_setup:
+        raise InstallationError(
+            f"{req_name} does not appear to be a Python project: "
+            f"neither 'setup.py' nor 'pyproject.toml' found."
+        )
+
+    if has_pyproject:
+        with open(pyproject_toml, encoding="utf-8") as f:
+            pp_toml = tomli.load(f)
+        build_system = pp_toml.get("build-system")
+    else:
+        build_system = None
+
+    # The following cases must use PEP 517
+    # We check for use_pep517 being non-None and falsey because that means
+    # the user explicitly requested --no-use-pep517.  The value 0 as
+    # opposed to False can occur when the value is provided via an
+    # environment variable or config file option (due to the quirk of
+    # strtobool() returning an integer in pip's configuration code).
+    if has_pyproject and not has_setup:
+        if use_pep517 is not None and not use_pep517:
+            raise InstallationError(
+                "Disabling PEP 517 processing is invalid: "
+                "project does not have a setup.py"
+            )
+        use_pep517 = True
+    elif build_system and "build-backend" in build_system:
+        if use_pep517 is not None and not use_pep517:
+            raise InstallationError(
+                "Disabling PEP 517 processing is invalid: "
+                "project specifies a build backend of {} "
+                "in pyproject.toml".format(build_system["build-backend"])
+            )
+        use_pep517 = True
+
+    # If we haven't worked out whether to use PEP 517 yet,
+    # and the user hasn't explicitly stated a preference,
+    # we do so if the project has a pyproject.toml file.
+    elif use_pep517 is None:
+        use_pep517 = has_pyproject
+
+    # At this point, we know whether we're going to use PEP 517.
+    assert use_pep517 is not None
+
+    # If we're using the legacy code path, there is nothing further
+    # for us to do here.
+    if not use_pep517:
+        return None
+
+    if build_system is None:
+        # Either the user has a pyproject.toml with no build-system
+        # section, or the user has no pyproject.toml, but has opted in
+        # explicitly via --use-pep517.
+        # In the absence of any explicit backend specification, we
+        # assume the setuptools backend that most closely emulates the
+        # traditional direct setup.py execution, and require wheel and
+        # a version of setuptools that supports that backend.
+
+        build_system = {
+            "requires": ["setuptools>=40.8.0", "wheel"],
+            "build-backend": "setuptools.build_meta:__legacy__",
+        }
+
+    # If we're using PEP 517, we have build system information (either
+    # from pyproject.toml, or defaulted by the code above).
+    # Note that at this point, we do not know if the user has actually
+    # specified a backend, though.
+    assert build_system is not None
+
+    # Ensure that the build-system section in pyproject.toml conforms
+    # to PEP 518.
+    error_template = (
+        "{package} has a pyproject.toml file that does not comply "
+        "with PEP 518: {reason}"
+    )
+
+    # Specifying the build-system table but not the requires key is invalid
+    if "requires" not in build_system:
+        raise InstallationError(
+            error_template.format(
+                package=req_name,
+                reason=(
+                    "it has a 'build-system' table but not "
+                    "'build-system.requires' which is mandatory in the table"
+                ),
+            )
+        )
+
+    # Error out if requires is not a list of strings
+    requires = build_system["requires"]
+    if not _is_list_of_str(requires):
+        raise InstallationError(
+            error_template.format(
+                package=req_name,
+                reason="'build-system.requires' is not a list of strings.",
+            )
+        )
+
+    # Each requirement must be valid as per PEP 508
+    for requirement in requires:
+        try:
+            Requirement(requirement)
+        except InvalidRequirement:
+            raise InstallationError(
+                error_template.format(
+                    package=req_name,
+                    reason=(
+                        "'build-system.requires' contains an invalid "
+                        "requirement: {!r}".format(requirement)
+                    ),
+                )
+            )
+
+    backend = build_system.get("build-backend")
+    backend_path = build_system.get("backend-path", [])
+    check: List[str] = []
+    if backend is None:
+        # If the user didn't specify a backend, we assume they want to use
+        # the setuptools backend. But we can't be sure they have included
+        # a version of setuptools which supplies the backend, or wheel
+        # (which is needed by the backend) in their requirements. So we
+        # make a note to check that those requirements are present once
+        # we have set up the environment.
+        # This is quite a lot of work to check for a very specific case. But
+        # the problem is, that case is potentially quite common - projects that
+        # adopted PEP 518 early for the ability to specify requirements to
+        # execute setup.py, but never considered needing to mention the build
+        # tools themselves. The original PEP 518 code had a similar check (but
+        # implemented in a different way).
+        backend = "setuptools.build_meta:__legacy__"
+        check = ["setuptools>=40.8.0", "wheel"]
+
+    return BuildSystemDetails(requires, backend, check, backend_path)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/req/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/req/__init__.py
new file mode 100644
index 0000000..70dea27
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/req/__init__.py
@@ -0,0 +1,94 @@
+import collections
+import logging
+from typing import Iterator, List, Optional, Sequence, Tuple
+
+from pip._internal.utils.logging import indent_log
+
+from .req_file import parse_requirements
+from .req_install import InstallRequirement
+from .req_set import RequirementSet
+
+__all__ = [
+    "RequirementSet",
+    "InstallRequirement",
+    "parse_requirements",
+    "install_given_reqs",
+]
+
+logger = logging.getLogger(__name__)
+
+
+class InstallationResult:
+    def __init__(self, name: str) -> None:
+        self.name = name
+
+    def __repr__(self) -> str:
+        return f"InstallationResult(name={self.name!r})"
+
+
+def _validate_requirements(
+    requirements: List[InstallRequirement],
+) -> Iterator[Tuple[str, InstallRequirement]]:
+    for req in requirements:
+        assert req.name, f"invalid to-be-installed requirement: {req}"
+        yield req.name, req
+
+
+def install_given_reqs(
+    requirements: List[InstallRequirement],
+    install_options: List[str],
+    global_options: Sequence[str],
+    root: Optional[str],
+    home: Optional[str],
+    prefix: Optional[str],
+    warn_script_location: bool,
+    use_user_site: bool,
+    pycompile: bool,
+) -> List[InstallationResult]:
+    """
+    Install everything in the given list.
+
+    (to be called after having downloaded and unpacked the packages)
+    """
+    to_install = collections.OrderedDict(_validate_requirements(requirements))
+
+    if to_install:
+        logger.info(
+            "Installing collected packages: %s",
+            ", ".join(to_install.keys()),
+        )
+
+    installed = []
+
+    with indent_log():
+        for req_name, requirement in to_install.items():
+            if requirement.should_reinstall:
+                logger.info("Attempting uninstall: %s", req_name)
+                with indent_log():
+                    uninstalled_pathset = requirement.uninstall(auto_confirm=True)
+            else:
+                uninstalled_pathset = None
+
+            try:
+                requirement.install(
+                    install_options,
+                    global_options,
+                    root=root,
+                    home=home,
+                    prefix=prefix,
+                    warn_script_location=warn_script_location,
+                    use_user_site=use_user_site,
+                    pycompile=pycompile,
+                )
+            except Exception:
+                # if install did not succeed, rollback previous uninstall
+                if uninstalled_pathset and not requirement.install_succeeded:
+                    uninstalled_pathset.rollback()
+                raise
+            else:
+                if uninstalled_pathset and requirement.install_succeeded:
+                    uninstalled_pathset.commit()
+
+            installed.append(InstallationResult(req_name))
+
+    return installed
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/req/constructors.py b/utils/python-venv/Lib/site-packages/pip/_internal/req/constructors.py
new file mode 100644
index 0000000..4a59403
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/req/constructors.py
@@ -0,0 +1,466 @@
+"""Backing implementation for InstallRequirement's various constructors
+
+The idea here is that these formed a major chunk of InstallRequirement's size
+so, moving them and support code dedicated to them outside of that class
+helps creates for better understandability for the rest of the code.
+
+These are meant to be used elsewhere within pip to create instances of
+InstallRequirement.
+"""
+
+import logging
+import os
+import re
+from typing import Any, Dict, Optional, Set, Tuple, Union
+
+from pip._vendor.packaging.markers import Marker
+from pip._vendor.packaging.requirements import InvalidRequirement, Requirement
+from pip._vendor.packaging.specifiers import Specifier
+from pip._vendor.pkg_resources import RequirementParseError, parse_requirements
+
+from pip._internal.exceptions import InstallationError
+from pip._internal.models.index import PyPI, TestPyPI
+from pip._internal.models.link import Link
+from pip._internal.models.wheel import Wheel
+from pip._internal.req.req_file import ParsedRequirement
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.utils.filetypes import is_archive_file
+from pip._internal.utils.misc import is_installable_dir
+from pip._internal.utils.packaging import get_requirement
+from pip._internal.utils.urls import path_to_url
+from pip._internal.vcs import is_url, vcs
+
+__all__ = [
+    "install_req_from_editable",
+    "install_req_from_line",
+    "parse_editable",
+]
+
+logger = logging.getLogger(__name__)
+operators = Specifier._operators.keys()
+
+
+def _strip_extras(path: str) -> Tuple[str, Optional[str]]:
+    m = re.match(r"^(.+)(\[[^\]]+\])$", path)
+    extras = None
+    if m:
+        path_no_extras = m.group(1)
+        extras = m.group(2)
+    else:
+        path_no_extras = path
+
+    return path_no_extras, extras
+
+
+def convert_extras(extras: Optional[str]) -> Set[str]:
+    if not extras:
+        return set()
+    return get_requirement("placeholder" + extras.lower()).extras
+
+
+def parse_editable(editable_req: str) -> Tuple[Optional[str], str, Set[str]]:
+    """Parses an editable requirement into:
+        - a requirement name
+        - an URL
+        - extras
+        - editable options
+    Accepted requirements:
+        svn+http://blahblah@rev#egg=Foobar[baz]&subdirectory=version_subdir
+        .[some_extra]
+    """
+
+    url = editable_req
+
+    # If a file path is specified with extras, strip off the extras.
+    url_no_extras, extras = _strip_extras(url)
+
+    if os.path.isdir(url_no_extras):
+        # Treating it as code that has already been checked out
+        url_no_extras = path_to_url(url_no_extras)
+
+    if url_no_extras.lower().startswith("file:"):
+        package_name = Link(url_no_extras).egg_fragment
+        if extras:
+            return (
+                package_name,
+                url_no_extras,
+                get_requirement("placeholder" + extras.lower()).extras,
+            )
+        else:
+            return package_name, url_no_extras, set()
+
+    for version_control in vcs:
+        if url.lower().startswith(f"{version_control}:"):
+            url = f"{version_control}+{url}"
+            break
+
+    link = Link(url)
+
+    if not link.is_vcs:
+        backends = ", ".join(vcs.all_schemes)
+        raise InstallationError(
+            f"{editable_req} is not a valid editable requirement. "
+            f"It should either be a path to a local project or a VCS URL "
+            f"(beginning with {backends})."
+        )
+
+    package_name = link.egg_fragment
+    if not package_name:
+        raise InstallationError(
+            "Could not detect requirement name for '{}', please specify one "
+            "with #egg=your_package_name".format(editable_req)
+        )
+    return package_name, url, set()
+
+
+def deduce_helpful_msg(req: str) -> str:
+    """Returns helpful msg in case requirements file does not exist,
+    or cannot be parsed.
+
+    :params req: Requirements file path
+    """
+    msg = ""
+    if os.path.exists(req):
+        msg = " The path does exist. "
+        # Try to parse and check if it is a requirements file.
+        try:
+            with open(req) as fp:
+                # parse first line only
+                next(parse_requirements(fp.read()))
+                msg += (
+                    "The argument you provided "
+                    "({}) appears to be a"
+                    " requirements file. If that is the"
+                    " case, use the '-r' flag to install"
+                    " the packages specified within it."
+                ).format(req)
+        except RequirementParseError:
+            logger.debug("Cannot parse '%s' as requirements file", req, exc_info=True)
+    else:
+        msg += f" File '{req}' does not exist."
+    return msg
+
+
+class RequirementParts:
+    def __init__(
+        self,
+        requirement: Optional[Requirement],
+        link: Optional[Link],
+        markers: Optional[Marker],
+        extras: Set[str],
+    ):
+        self.requirement = requirement
+        self.link = link
+        self.markers = markers
+        self.extras = extras
+
+
+def parse_req_from_editable(editable_req: str) -> RequirementParts:
+    name, url, extras_override = parse_editable(editable_req)
+
+    if name is not None:
+        try:
+            req: Optional[Requirement] = Requirement(name)
+        except InvalidRequirement:
+            raise InstallationError(f"Invalid requirement: '{name}'")
+    else:
+        req = None
+
+    link = Link(url)
+
+    return RequirementParts(req, link, None, extras_override)
+
+
+# ---- The actual constructors follow ----
+
+
+def install_req_from_editable(
+    editable_req: str,
+    comes_from: Optional[Union[InstallRequirement, str]] = None,
+    use_pep517: Optional[bool] = None,
+    isolated: bool = False,
+    options: Optional[Dict[str, Any]] = None,
+    constraint: bool = False,
+    user_supplied: bool = False,
+    permit_editable_wheels: bool = False,
+) -> InstallRequirement:
+
+    parts = parse_req_from_editable(editable_req)
+
+    return InstallRequirement(
+        parts.requirement,
+        comes_from=comes_from,
+        user_supplied=user_supplied,
+        editable=True,
+        permit_editable_wheels=permit_editable_wheels,
+        link=parts.link,
+        constraint=constraint,
+        use_pep517=use_pep517,
+        isolated=isolated,
+        install_options=options.get("install_options", []) if options else [],
+        global_options=options.get("global_options", []) if options else [],
+        hash_options=options.get("hashes", {}) if options else {},
+        extras=parts.extras,
+    )
+
+
+def _looks_like_path(name: str) -> bool:
+    """Checks whether the string "looks like" a path on the filesystem.
+
+    This does not check whether the target actually exists, only judge from the
+    appearance.
+
+    Returns true if any of the following conditions is true:
+    * a path separator is found (either os.path.sep or os.path.altsep);
+    * a dot is found (which represents the current directory).
+    """
+    if os.path.sep in name:
+        return True
+    if os.path.altsep is not None and os.path.altsep in name:
+        return True
+    if name.startswith("."):
+        return True
+    return False
+
+
+def _get_url_from_path(path: str, name: str) -> Optional[str]:
+    """
+    First, it checks whether a provided path is an installable directory. If it
+    is, returns the path.
+
+    If false, check if the path is an archive file (such as a .whl).
+    The function checks if the path is a file. If false, if the path has
+    an @, it will treat it as a PEP 440 URL requirement and return the path.
+    """
+    if _looks_like_path(name) and os.path.isdir(path):
+        if is_installable_dir(path):
+            return path_to_url(path)
+        # TODO: The is_installable_dir test here might not be necessary
+        #       now that it is done in load_pyproject_toml too.
+        raise InstallationError(
+            f"Directory {name!r} is not installable. Neither 'setup.py' "
+            "nor 'pyproject.toml' found."
+        )
+    if not is_archive_file(path):
+        return None
+    if os.path.isfile(path):
+        return path_to_url(path)
+    urlreq_parts = name.split("@", 1)
+    if len(urlreq_parts) >= 2 and not _looks_like_path(urlreq_parts[0]):
+        # If the path contains '@' and the part before it does not look
+        # like a path, try to treat it as a PEP 440 URL req instead.
+        return None
+    logger.warning(
+        "Requirement %r looks like a filename, but the file does not exist",
+        name,
+    )
+    return path_to_url(path)
+
+
+def parse_req_from_line(name: str, line_source: Optional[str]) -> RequirementParts:
+    if is_url(name):
+        marker_sep = "; "
+    else:
+        marker_sep = ";"
+    if marker_sep in name:
+        name, markers_as_string = name.split(marker_sep, 1)
+        markers_as_string = markers_as_string.strip()
+        if not markers_as_string:
+            markers = None
+        else:
+            markers = Marker(markers_as_string)
+    else:
+        markers = None
+    name = name.strip()
+    req_as_string = None
+    path = os.path.normpath(os.path.abspath(name))
+    link = None
+    extras_as_string = None
+
+    if is_url(name):
+        link = Link(name)
+    else:
+        p, extras_as_string = _strip_extras(path)
+        url = _get_url_from_path(p, name)
+        if url is not None:
+            link = Link(url)
+
+    # it's a local file, dir, or url
+    if link:
+        # Handle relative file URLs
+        if link.scheme == "file" and re.search(r"\.\./", link.url):
+            link = Link(path_to_url(os.path.normpath(os.path.abspath(link.path))))
+        # wheel file
+        if link.is_wheel:
+            wheel = Wheel(link.filename)  # can raise InvalidWheelFilename
+            req_as_string = f"{wheel.name}=={wheel.version}"
+        else:
+            # set the req to the egg fragment.  when it's not there, this
+            # will become an 'unnamed' requirement
+            req_as_string = link.egg_fragment
+
+    # a requirement specifier
+    else:
+        req_as_string = name
+
+    extras = convert_extras(extras_as_string)
+
+    def with_source(text: str) -> str:
+        if not line_source:
+            return text
+        return f"{text} (from {line_source})"
+
+    def _parse_req_string(req_as_string: str) -> Requirement:
+        try:
+            req = get_requirement(req_as_string)
+        except InvalidRequirement:
+            if os.path.sep in req_as_string:
+                add_msg = "It looks like a path."
+                add_msg += deduce_helpful_msg(req_as_string)
+            elif "=" in req_as_string and not any(
+                op in req_as_string for op in operators
+            ):
+                add_msg = "= is not a valid operator. Did you mean == ?"
+            else:
+                add_msg = ""
+            msg = with_source(f"Invalid requirement: {req_as_string!r}")
+            if add_msg:
+                msg += f"\nHint: {add_msg}"
+            raise InstallationError(msg)
+        else:
+            # Deprecate extras after specifiers: "name>=1.0[extras]"
+            # This currently works by accident because _strip_extras() parses
+            # any extras in the end of the string and those are saved in
+            # RequirementParts
+            for spec in req.specifier:
+                spec_str = str(spec)
+                if spec_str.endswith("]"):
+                    msg = f"Extras after version '{spec_str}'."
+                    raise InstallationError(msg)
+        return req
+
+    if req_as_string is not None:
+        req: Optional[Requirement] = _parse_req_string(req_as_string)
+    else:
+        req = None
+
+    return RequirementParts(req, link, markers, extras)
+
+
+def install_req_from_line(
+    name: str,
+    comes_from: Optional[Union[str, InstallRequirement]] = None,
+    use_pep517: Optional[bool] = None,
+    isolated: bool = False,
+    options: Optional[Dict[str, Any]] = None,
+    constraint: bool = False,
+    line_source: Optional[str] = None,
+    user_supplied: bool = False,
+) -> InstallRequirement:
+    """Creates an InstallRequirement from a name, which might be a
+    requirement, directory containing 'setup.py', filename, or URL.
+
+    :param line_source: An optional string describing where the line is from,
+        for logging purposes in case of an error.
+    """
+    parts = parse_req_from_line(name, line_source)
+
+    return InstallRequirement(
+        parts.requirement,
+        comes_from,
+        link=parts.link,
+        markers=parts.markers,
+        use_pep517=use_pep517,
+        isolated=isolated,
+        install_options=options.get("install_options", []) if options else [],
+        global_options=options.get("global_options", []) if options else [],
+        hash_options=options.get("hashes", {}) if options else {},
+        constraint=constraint,
+        extras=parts.extras,
+        user_supplied=user_supplied,
+    )
+
+
+def install_req_from_req_string(
+    req_string: str,
+    comes_from: Optional[InstallRequirement] = None,
+    isolated: bool = False,
+    use_pep517: Optional[bool] = None,
+    user_supplied: bool = False,
+) -> InstallRequirement:
+    try:
+        req = get_requirement(req_string)
+    except InvalidRequirement:
+        raise InstallationError(f"Invalid requirement: '{req_string}'")
+
+    domains_not_allowed = [
+        PyPI.file_storage_domain,
+        TestPyPI.file_storage_domain,
+    ]
+    if (
+        req.url
+        and comes_from
+        and comes_from.link
+        and comes_from.link.netloc in domains_not_allowed
+    ):
+        # Explicitly disallow pypi packages that depend on external urls
+        raise InstallationError(
+            "Packages installed from PyPI cannot depend on packages "
+            "which are not also hosted on PyPI.\n"
+            "{} depends on {} ".format(comes_from.name, req)
+        )
+
+    return InstallRequirement(
+        req,
+        comes_from,
+        isolated=isolated,
+        use_pep517=use_pep517,
+        user_supplied=user_supplied,
+    )
+
+
+def install_req_from_parsed_requirement(
+    parsed_req: ParsedRequirement,
+    isolated: bool = False,
+    use_pep517: Optional[bool] = None,
+    user_supplied: bool = False,
+) -> InstallRequirement:
+    if parsed_req.is_editable:
+        req = install_req_from_editable(
+            parsed_req.requirement,
+            comes_from=parsed_req.comes_from,
+            use_pep517=use_pep517,
+            constraint=parsed_req.constraint,
+            isolated=isolated,
+            user_supplied=user_supplied,
+        )
+
+    else:
+        req = install_req_from_line(
+            parsed_req.requirement,
+            comes_from=parsed_req.comes_from,
+            use_pep517=use_pep517,
+            isolated=isolated,
+            options=parsed_req.options,
+            constraint=parsed_req.constraint,
+            line_source=parsed_req.line_source,
+            user_supplied=user_supplied,
+        )
+    return req
+
+
+def install_req_from_link_and_ireq(
+    link: Link, ireq: InstallRequirement
+) -> InstallRequirement:
+    return InstallRequirement(
+        req=ireq.req,
+        comes_from=ireq.comes_from,
+        editable=ireq.editable,
+        link=link,
+        markers=ireq.markers,
+        use_pep517=ireq.use_pep517,
+        isolated=ireq.isolated,
+        install_options=ireq.install_options,
+        global_options=ireq.global_options,
+        hash_options=ireq.hash_options,
+    )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/req/req_file.py b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_file.py
new file mode 100644
index 0000000..03ae504
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_file.py
@@ -0,0 +1,536 @@
+"""
+Requirements file parsing
+"""
+
+import optparse
+import os
+import re
+import shlex
+import urllib.parse
+from optparse import Values
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Callable,
+    Dict,
+    Iterable,
+    Iterator,
+    List,
+    Optional,
+    Tuple,
+)
+
+from pip._internal.cli import cmdoptions
+from pip._internal.exceptions import InstallationError, RequirementsFileParseError
+from pip._internal.models.search_scope import SearchScope
+from pip._internal.network.session import PipSession
+from pip._internal.network.utils import raise_for_status
+from pip._internal.utils.encoding import auto_decode
+from pip._internal.utils.urls import get_url_scheme
+
+if TYPE_CHECKING:
+    # NoReturn introduced in 3.6.2; imported only for type checking to maintain
+    # pip compatibility with older patch versions of Python 3.6
+    from typing import NoReturn
+
+    from pip._internal.index.package_finder import PackageFinder
+
+__all__ = ["parse_requirements"]
+
+ReqFileLines = Iterable[Tuple[int, str]]
+
+LineParser = Callable[[str], Tuple[str, Values]]
+
+SCHEME_RE = re.compile(r"^(http|https|file):", re.I)
+COMMENT_RE = re.compile(r"(^|\s+)#.*$")
+
+# Matches environment variable-style values in '${MY_VARIABLE_1}' with the
+# variable name consisting of only uppercase letters, digits or the '_'
+# (underscore). This follows the POSIX standard defined in IEEE Std 1003.1,
+# 2013 Edition.
+ENV_VAR_RE = re.compile(r"(?P\$\{(?P[A-Z0-9_]+)\})")
+
+SUPPORTED_OPTIONS: List[Callable[..., optparse.Option]] = [
+    cmdoptions.index_url,
+    cmdoptions.extra_index_url,
+    cmdoptions.no_index,
+    cmdoptions.constraints,
+    cmdoptions.requirements,
+    cmdoptions.editable,
+    cmdoptions.find_links,
+    cmdoptions.no_binary,
+    cmdoptions.only_binary,
+    cmdoptions.prefer_binary,
+    cmdoptions.require_hashes,
+    cmdoptions.pre,
+    cmdoptions.trusted_host,
+    cmdoptions.use_new_feature,
+]
+
+# options to be passed to requirements
+SUPPORTED_OPTIONS_REQ: List[Callable[..., optparse.Option]] = [
+    cmdoptions.install_options,
+    cmdoptions.global_options,
+    cmdoptions.hash,
+]
+
+# the 'dest' string values
+SUPPORTED_OPTIONS_REQ_DEST = [str(o().dest) for o in SUPPORTED_OPTIONS_REQ]
+
+
+class ParsedRequirement:
+    def __init__(
+        self,
+        requirement: str,
+        is_editable: bool,
+        comes_from: str,
+        constraint: bool,
+        options: Optional[Dict[str, Any]] = None,
+        line_source: Optional[str] = None,
+    ) -> None:
+        self.requirement = requirement
+        self.is_editable = is_editable
+        self.comes_from = comes_from
+        self.options = options
+        self.constraint = constraint
+        self.line_source = line_source
+
+
+class ParsedLine:
+    def __init__(
+        self,
+        filename: str,
+        lineno: int,
+        args: str,
+        opts: Values,
+        constraint: bool,
+    ) -> None:
+        self.filename = filename
+        self.lineno = lineno
+        self.opts = opts
+        self.constraint = constraint
+
+        if args:
+            self.is_requirement = True
+            self.is_editable = False
+            self.requirement = args
+        elif opts.editables:
+            self.is_requirement = True
+            self.is_editable = True
+            # We don't support multiple -e on one line
+            self.requirement = opts.editables[0]
+        else:
+            self.is_requirement = False
+
+
+def parse_requirements(
+    filename: str,
+    session: PipSession,
+    finder: Optional["PackageFinder"] = None,
+    options: Optional[optparse.Values] = None,
+    constraint: bool = False,
+) -> Iterator[ParsedRequirement]:
+    """Parse a requirements file and yield ParsedRequirement instances.
+
+    :param filename:    Path or url of requirements file.
+    :param session:     PipSession instance.
+    :param finder:      Instance of pip.index.PackageFinder.
+    :param options:     cli options.
+    :param constraint:  If true, parsing a constraint file rather than
+        requirements file.
+    """
+    line_parser = get_line_parser(finder)
+    parser = RequirementsFileParser(session, line_parser)
+
+    for parsed_line in parser.parse(filename, constraint):
+        parsed_req = handle_line(
+            parsed_line, options=options, finder=finder, session=session
+        )
+        if parsed_req is not None:
+            yield parsed_req
+
+
+def preprocess(content: str) -> ReqFileLines:
+    """Split, filter, and join lines, and return a line iterator
+
+    :param content: the content of the requirements file
+    """
+    lines_enum: ReqFileLines = enumerate(content.splitlines(), start=1)
+    lines_enum = join_lines(lines_enum)
+    lines_enum = ignore_comments(lines_enum)
+    lines_enum = expand_env_variables(lines_enum)
+    return lines_enum
+
+
+def handle_requirement_line(
+    line: ParsedLine,
+    options: Optional[optparse.Values] = None,
+) -> ParsedRequirement:
+
+    # preserve for the nested code path
+    line_comes_from = "{} {} (line {})".format(
+        "-c" if line.constraint else "-r",
+        line.filename,
+        line.lineno,
+    )
+
+    assert line.is_requirement
+
+    if line.is_editable:
+        # For editable requirements, we don't support per-requirement
+        # options, so just return the parsed requirement.
+        return ParsedRequirement(
+            requirement=line.requirement,
+            is_editable=line.is_editable,
+            comes_from=line_comes_from,
+            constraint=line.constraint,
+        )
+    else:
+        if options:
+            # Disable wheels if the user has specified build options
+            cmdoptions.check_install_build_global(options, line.opts)
+
+        # get the options that apply to requirements
+        req_options = {}
+        for dest in SUPPORTED_OPTIONS_REQ_DEST:
+            if dest in line.opts.__dict__ and line.opts.__dict__[dest]:
+                req_options[dest] = line.opts.__dict__[dest]
+
+        line_source = f"line {line.lineno} of {line.filename}"
+        return ParsedRequirement(
+            requirement=line.requirement,
+            is_editable=line.is_editable,
+            comes_from=line_comes_from,
+            constraint=line.constraint,
+            options=req_options,
+            line_source=line_source,
+        )
+
+
+def handle_option_line(
+    opts: Values,
+    filename: str,
+    lineno: int,
+    finder: Optional["PackageFinder"] = None,
+    options: Optional[optparse.Values] = None,
+    session: Optional[PipSession] = None,
+) -> None:
+
+    if options:
+        # percolate options upward
+        if opts.require_hashes:
+            options.require_hashes = opts.require_hashes
+        if opts.features_enabled:
+            options.features_enabled.extend(
+                f for f in opts.features_enabled if f not in options.features_enabled
+            )
+
+    # set finder options
+    if finder:
+        find_links = finder.find_links
+        index_urls = finder.index_urls
+        if opts.index_url:
+            index_urls = [opts.index_url]
+        if opts.no_index is True:
+            index_urls = []
+        if opts.extra_index_urls:
+            index_urls.extend(opts.extra_index_urls)
+        if opts.find_links:
+            # FIXME: it would be nice to keep track of the source
+            # of the find_links: support a find-links local path
+            # relative to a requirements file.
+            value = opts.find_links[0]
+            req_dir = os.path.dirname(os.path.abspath(filename))
+            relative_to_reqs_file = os.path.join(req_dir, value)
+            if os.path.exists(relative_to_reqs_file):
+                value = relative_to_reqs_file
+            find_links.append(value)
+
+        if session:
+            # We need to update the auth urls in session
+            session.update_index_urls(index_urls)
+
+        search_scope = SearchScope(
+            find_links=find_links,
+            index_urls=index_urls,
+        )
+        finder.search_scope = search_scope
+
+        if opts.pre:
+            finder.set_allow_all_prereleases()
+
+        if opts.prefer_binary:
+            finder.set_prefer_binary()
+
+        if session:
+            for host in opts.trusted_hosts or []:
+                source = f"line {lineno} of {filename}"
+                session.add_trusted_host(host, source=source)
+
+
+def handle_line(
+    line: ParsedLine,
+    options: Optional[optparse.Values] = None,
+    finder: Optional["PackageFinder"] = None,
+    session: Optional[PipSession] = None,
+) -> Optional[ParsedRequirement]:
+    """Handle a single parsed requirements line; This can result in
+    creating/yielding requirements, or updating the finder.
+
+    :param line:        The parsed line to be processed.
+    :param options:     CLI options.
+    :param finder:      The finder - updated by non-requirement lines.
+    :param session:     The session - updated by non-requirement lines.
+
+    Returns a ParsedRequirement object if the line is a requirement line,
+    otherwise returns None.
+
+    For lines that contain requirements, the only options that have an effect
+    are from SUPPORTED_OPTIONS_REQ, and they are scoped to the
+    requirement. Other options from SUPPORTED_OPTIONS may be present, but are
+    ignored.
+
+    For lines that do not contain requirements, the only options that have an
+    effect are from SUPPORTED_OPTIONS. Options from SUPPORTED_OPTIONS_REQ may
+    be present, but are ignored. These lines may contain multiple options
+    (although our docs imply only one is supported), and all our parsed and
+    affect the finder.
+    """
+
+    if line.is_requirement:
+        parsed_req = handle_requirement_line(line, options)
+        return parsed_req
+    else:
+        handle_option_line(
+            line.opts,
+            line.filename,
+            line.lineno,
+            finder,
+            options,
+            session,
+        )
+        return None
+
+
+class RequirementsFileParser:
+    def __init__(
+        self,
+        session: PipSession,
+        line_parser: LineParser,
+    ) -> None:
+        self._session = session
+        self._line_parser = line_parser
+
+    def parse(self, filename: str, constraint: bool) -> Iterator[ParsedLine]:
+        """Parse a given file, yielding parsed lines."""
+        yield from self._parse_and_recurse(filename, constraint)
+
+    def _parse_and_recurse(
+        self, filename: str, constraint: bool
+    ) -> Iterator[ParsedLine]:
+        for line in self._parse_file(filename, constraint):
+            if not line.is_requirement and (
+                line.opts.requirements or line.opts.constraints
+            ):
+                # parse a nested requirements file
+                if line.opts.requirements:
+                    req_path = line.opts.requirements[0]
+                    nested_constraint = False
+                else:
+                    req_path = line.opts.constraints[0]
+                    nested_constraint = True
+
+                # original file is over http
+                if SCHEME_RE.search(filename):
+                    # do a url join so relative paths work
+                    req_path = urllib.parse.urljoin(filename, req_path)
+                # original file and nested file are paths
+                elif not SCHEME_RE.search(req_path):
+                    # do a join so relative paths work
+                    req_path = os.path.join(
+                        os.path.dirname(filename),
+                        req_path,
+                    )
+
+                yield from self._parse_and_recurse(req_path, nested_constraint)
+            else:
+                yield line
+
+    def _parse_file(self, filename: str, constraint: bool) -> Iterator[ParsedLine]:
+        _, content = get_file_content(filename, self._session)
+
+        lines_enum = preprocess(content)
+
+        for line_number, line in lines_enum:
+            try:
+                args_str, opts = self._line_parser(line)
+            except OptionParsingError as e:
+                # add offending line
+                msg = f"Invalid requirement: {line}\n{e.msg}"
+                raise RequirementsFileParseError(msg)
+
+            yield ParsedLine(
+                filename,
+                line_number,
+                args_str,
+                opts,
+                constraint,
+            )
+
+
+def get_line_parser(finder: Optional["PackageFinder"]) -> LineParser:
+    def parse_line(line: str) -> Tuple[str, Values]:
+        # Build new parser for each line since it accumulates appendable
+        # options.
+        parser = build_parser()
+        defaults = parser.get_default_values()
+        defaults.index_url = None
+        if finder:
+            defaults.format_control = finder.format_control
+
+        args_str, options_str = break_args_options(line)
+
+        opts, _ = parser.parse_args(shlex.split(options_str), defaults)
+
+        return args_str, opts
+
+    return parse_line
+
+
+def break_args_options(line: str) -> Tuple[str, str]:
+    """Break up the line into an args and options string.  We only want to shlex
+    (and then optparse) the options, not the args.  args can contain markers
+    which are corrupted by shlex.
+    """
+    tokens = line.split(" ")
+    args = []
+    options = tokens[:]
+    for token in tokens:
+        if token.startswith("-") or token.startswith("--"):
+            break
+        else:
+            args.append(token)
+            options.pop(0)
+    return " ".join(args), " ".join(options)
+
+
+class OptionParsingError(Exception):
+    def __init__(self, msg: str) -> None:
+        self.msg = msg
+
+
+def build_parser() -> optparse.OptionParser:
+    """
+    Return a parser for parsing requirement lines
+    """
+    parser = optparse.OptionParser(add_help_option=False)
+
+    option_factories = SUPPORTED_OPTIONS + SUPPORTED_OPTIONS_REQ
+    for option_factory in option_factories:
+        option = option_factory()
+        parser.add_option(option)
+
+    # By default optparse sys.exits on parsing errors. We want to wrap
+    # that in our own exception.
+    def parser_exit(self: Any, msg: str) -> "NoReturn":
+        raise OptionParsingError(msg)
+
+    # NOTE: mypy disallows assigning to a method
+    #       https://github.com/python/mypy/issues/2427
+    parser.exit = parser_exit  # type: ignore
+
+    return parser
+
+
+def join_lines(lines_enum: ReqFileLines) -> ReqFileLines:
+    """Joins a line ending in '\' with the previous line (except when following
+    comments).  The joined line takes on the index of the first line.
+    """
+    primary_line_number = None
+    new_line: List[str] = []
+    for line_number, line in lines_enum:
+        if not line.endswith("\\") or COMMENT_RE.match(line):
+            if COMMENT_RE.match(line):
+                # this ensures comments are always matched later
+                line = " " + line
+            if new_line:
+                new_line.append(line)
+                assert primary_line_number is not None
+                yield primary_line_number, "".join(new_line)
+                new_line = []
+            else:
+                yield line_number, line
+        else:
+            if not new_line:
+                primary_line_number = line_number
+            new_line.append(line.strip("\\"))
+
+    # last line contains \
+    if new_line:
+        assert primary_line_number is not None
+        yield primary_line_number, "".join(new_line)
+
+    # TODO: handle space after '\'.
+
+
+def ignore_comments(lines_enum: ReqFileLines) -> ReqFileLines:
+    """
+    Strips comments and filter empty lines.
+    """
+    for line_number, line in lines_enum:
+        line = COMMENT_RE.sub("", line)
+        line = line.strip()
+        if line:
+            yield line_number, line
+
+
+def expand_env_variables(lines_enum: ReqFileLines) -> ReqFileLines:
+    """Replace all environment variables that can be retrieved via `os.getenv`.
+
+    The only allowed format for environment variables defined in the
+    requirement file is `${MY_VARIABLE_1}` to ensure two things:
+
+    1. Strings that contain a `$` aren't accidentally (partially) expanded.
+    2. Ensure consistency across platforms for requirement files.
+
+    These points are the result of a discussion on the `github pull
+    request #3514 `_.
+
+    Valid characters in variable names follow the `POSIX standard
+    `_ and are limited
+    to uppercase letter, digits and the `_` (underscore).
+    """
+    for line_number, line in lines_enum:
+        for env_var, var_name in ENV_VAR_RE.findall(line):
+            value = os.getenv(var_name)
+            if not value:
+                continue
+
+            line = line.replace(env_var, value)
+
+        yield line_number, line
+
+
+def get_file_content(url: str, session: PipSession) -> Tuple[str, str]:
+    """Gets the content of a file; it may be a filename, file: URL, or
+    http: URL.  Returns (location, content).  Content is unicode.
+    Respects # -*- coding: declarations on the retrieved files.
+
+    :param url:         File path or url.
+    :param session:     PipSession instance.
+    """
+    scheme = get_url_scheme(url)
+
+    # Pip has special support for file:// URLs (LocalFSAdapter).
+    if scheme in ["http", "https", "file"]:
+        resp = session.get(url)
+        raise_for_status(resp)
+        return resp.url, resp.text
+
+    # Assume this is a bare path.
+    try:
+        with open(url, "rb") as f:
+            content = auto_decode(f.read())
+    except OSError as exc:
+        raise InstallationError(f"Could not open requirements file: {exc}")
+    return url, content
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/req/req_install.py b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_install.py
new file mode 100644
index 0000000..95dacab
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_install.py
@@ -0,0 +1,891 @@
+# The following comment should be removed at some point in the future.
+# mypy: strict-optional=False
+
+import functools
+import logging
+import os
+import shutil
+import sys
+import uuid
+import zipfile
+from typing import Any, Collection, Dict, Iterable, List, Optional, Sequence, Union
+
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.markers import Marker
+from pip._vendor.packaging.requirements import Requirement
+from pip._vendor.packaging.specifiers import SpecifierSet
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.packaging.version import Version
+from pip._vendor.packaging.version import parse as parse_version
+from pip._vendor.pep517.wrappers import Pep517HookCaller
+from pip._vendor.pkg_resources import Distribution
+
+from pip._internal.build_env import BuildEnvironment, NoOpBuildEnvironment
+from pip._internal.exceptions import InstallationError
+from pip._internal.locations import get_scheme
+from pip._internal.models.link import Link
+from pip._internal.operations.build.metadata import generate_metadata
+from pip._internal.operations.build.metadata_editable import generate_editable_metadata
+from pip._internal.operations.build.metadata_legacy import (
+    generate_metadata as generate_metadata_legacy,
+)
+from pip._internal.operations.install.editable_legacy import (
+    install_editable as install_editable_legacy,
+)
+from pip._internal.operations.install.legacy import LegacyInstallFailure
+from pip._internal.operations.install.legacy import install as install_legacy
+from pip._internal.operations.install.wheel import install_wheel
+from pip._internal.pyproject import load_pyproject_toml, make_pyproject_path
+from pip._internal.req.req_uninstall import UninstallPathSet
+from pip._internal.utils.deprecation import deprecated
+from pip._internal.utils.direct_url_helpers import (
+    direct_url_for_editable,
+    direct_url_from_link,
+)
+from pip._internal.utils.hashes import Hashes
+from pip._internal.utils.misc import (
+    ask_path_exists,
+    backup_dir,
+    display_path,
+    dist_in_site_packages,
+    dist_in_usersite,
+    get_distribution,
+    hide_url,
+    redact_auth_from_url,
+)
+from pip._internal.utils.packaging import get_metadata
+from pip._internal.utils.subprocess import runner_with_spinner_message
+from pip._internal.utils.temp_dir import TempDirectory, tempdir_kinds
+from pip._internal.utils.virtualenv import running_under_virtualenv
+from pip._internal.vcs import vcs
+
+logger = logging.getLogger(__name__)
+
+
+def _get_dist(metadata_directory: str) -> Distribution:
+    """Return a pkg_resources.Distribution for the provided
+    metadata directory.
+    """
+    dist_dir = metadata_directory.rstrip(os.sep)
+
+    # Build a PathMetadata object, from path to metadata. :wink:
+    base_dir, dist_dir_name = os.path.split(dist_dir)
+    metadata = pkg_resources.PathMetadata(base_dir, dist_dir)
+
+    # Determine the correct Distribution object type.
+    if dist_dir.endswith(".egg-info"):
+        dist_cls = pkg_resources.Distribution
+        dist_name = os.path.splitext(dist_dir_name)[0]
+    else:
+        assert dist_dir.endswith(".dist-info")
+        dist_cls = pkg_resources.DistInfoDistribution
+        dist_name = os.path.splitext(dist_dir_name)[0].split("-")[0]
+
+    return dist_cls(
+        base_dir,
+        project_name=dist_name,
+        metadata=metadata,
+    )
+
+
+class InstallRequirement:
+    """
+    Represents something that may be installed later on, may have information
+    about where to fetch the relevant requirement and also contains logic for
+    installing the said requirement.
+    """
+
+    def __init__(
+        self,
+        req: Optional[Requirement],
+        comes_from: Optional[Union[str, "InstallRequirement"]],
+        editable: bool = False,
+        link: Optional[Link] = None,
+        markers: Optional[Marker] = None,
+        use_pep517: Optional[bool] = None,
+        isolated: bool = False,
+        install_options: Optional[List[str]] = None,
+        global_options: Optional[List[str]] = None,
+        hash_options: Optional[Dict[str, List[str]]] = None,
+        constraint: bool = False,
+        extras: Collection[str] = (),
+        user_supplied: bool = False,
+        permit_editable_wheels: bool = False,
+    ) -> None:
+        assert req is None or isinstance(req, Requirement), req
+        self.req = req
+        self.comes_from = comes_from
+        self.constraint = constraint
+        self.editable = editable
+        self.permit_editable_wheels = permit_editable_wheels
+        self.legacy_install_reason: Optional[int] = None
+
+        # source_dir is the local directory where the linked requirement is
+        # located, or unpacked. In case unpacking is needed, creating and
+        # populating source_dir is done by the RequirementPreparer. Note this
+        # is not necessarily the directory where pyproject.toml or setup.py is
+        # located - that one is obtained via unpacked_source_directory.
+        self.source_dir: Optional[str] = None
+        if self.editable:
+            assert link
+            if link.is_file:
+                self.source_dir = os.path.normpath(os.path.abspath(link.file_path))
+
+        if link is None and req and req.url:
+            # PEP 508 URL requirement
+            link = Link(req.url)
+        self.link = self.original_link = link
+        self.original_link_is_in_wheel_cache = False
+
+        # Path to any downloaded or already-existing package.
+        self.local_file_path: Optional[str] = None
+        if self.link and self.link.is_file:
+            self.local_file_path = self.link.file_path
+
+        if extras:
+            self.extras = extras
+        elif req:
+            self.extras = {pkg_resources.safe_extra(extra) for extra in req.extras}
+        else:
+            self.extras = set()
+        if markers is None and req:
+            markers = req.marker
+        self.markers = markers
+
+        # This holds the pkg_resources.Distribution object if this requirement
+        # is already available:
+        self.satisfied_by: Optional[Distribution] = None
+        # Whether the installation process should try to uninstall an existing
+        # distribution before installing this requirement.
+        self.should_reinstall = False
+        # Temporary build location
+        self._temp_build_dir: Optional[TempDirectory] = None
+        # Set to True after successful installation
+        self.install_succeeded: Optional[bool] = None
+        # Supplied options
+        self.install_options = install_options if install_options else []
+        self.global_options = global_options if global_options else []
+        self.hash_options = hash_options if hash_options else {}
+        # Set to True after successful preparation of this requirement
+        self.prepared = False
+        # User supplied requirement are explicitly requested for installation
+        # by the user via CLI arguments or requirements files, as opposed to,
+        # e.g. dependencies, extras or constraints.
+        self.user_supplied = user_supplied
+
+        self.isolated = isolated
+        self.build_env: BuildEnvironment = NoOpBuildEnvironment()
+
+        # For PEP 517, the directory where we request the project metadata
+        # gets stored. We need this to pass to build_wheel, so the backend
+        # can ensure that the wheel matches the metadata (see the PEP for
+        # details).
+        self.metadata_directory: Optional[str] = None
+
+        # The static build requirements (from pyproject.toml)
+        self.pyproject_requires: Optional[List[str]] = None
+
+        # Build requirements that we will check are available
+        self.requirements_to_check: List[str] = []
+
+        # The PEP 517 backend we should use to build the project
+        self.pep517_backend: Optional[Pep517HookCaller] = None
+
+        # Are we using PEP 517 for this requirement?
+        # After pyproject.toml has been loaded, the only valid values are True
+        # and False. Before loading, None is valid (meaning "use the default").
+        # Setting an explicit value before loading pyproject.toml is supported,
+        # but after loading this flag should be treated as read only.
+        self.use_pep517 = use_pep517
+
+        # This requirement needs more preparation before it can be built
+        self.needs_more_preparation = False
+
+    def __str__(self) -> str:
+        if self.req:
+            s = str(self.req)
+            if self.link:
+                s += " from {}".format(redact_auth_from_url(self.link.url))
+        elif self.link:
+            s = redact_auth_from_url(self.link.url)
+        else:
+            s = ""
+        if self.satisfied_by is not None:
+            s += " in {}".format(display_path(self.satisfied_by.location))
+        if self.comes_from:
+            if isinstance(self.comes_from, str):
+                comes_from: Optional[str] = self.comes_from
+            else:
+                comes_from = self.comes_from.from_path()
+            if comes_from:
+                s += f" (from {comes_from})"
+        return s
+
+    def __repr__(self) -> str:
+        return "<{} object: {} editable={!r}>".format(
+            self.__class__.__name__, str(self), self.editable
+        )
+
+    def format_debug(self) -> str:
+        """An un-tested helper for getting state, for debugging."""
+        attributes = vars(self)
+        names = sorted(attributes)
+
+        state = ("{}={!r}".format(attr, attributes[attr]) for attr in sorted(names))
+        return "<{name} object: {{{state}}}>".format(
+            name=self.__class__.__name__,
+            state=", ".join(state),
+        )
+
+    # Things that are valid for all kinds of requirements?
+    @property
+    def name(self) -> Optional[str]:
+        if self.req is None:
+            return None
+        return pkg_resources.safe_name(self.req.name)
+
+    @functools.lru_cache()  # use cached_property in python 3.8+
+    def supports_pyproject_editable(self) -> bool:
+        if not self.use_pep517:
+            return False
+        assert self.pep517_backend
+        with self.build_env:
+            runner = runner_with_spinner_message(
+                "Checking if build backend supports build_editable"
+            )
+            with self.pep517_backend.subprocess_runner(runner):
+                return "build_editable" in self.pep517_backend._supported_features()
+
+    @property
+    def specifier(self) -> SpecifierSet:
+        return self.req.specifier
+
+    @property
+    def is_pinned(self) -> bool:
+        """Return whether I am pinned to an exact version.
+
+        For example, some-package==1.2 is pinned; some-package>1.2 is not.
+        """
+        specifiers = self.specifier
+        return len(specifiers) == 1 and next(iter(specifiers)).operator in {"==", "==="}
+
+    def match_markers(self, extras_requested: Optional[Iterable[str]] = None) -> bool:
+        if not extras_requested:
+            # Provide an extra to safely evaluate the markers
+            # without matching any extra
+            extras_requested = ("",)
+        if self.markers is not None:
+            return any(
+                self.markers.evaluate({"extra": extra}) for extra in extras_requested
+            )
+        else:
+            return True
+
+    @property
+    def has_hash_options(self) -> bool:
+        """Return whether any known-good hashes are specified as options.
+
+        These activate --require-hashes mode; hashes specified as part of a
+        URL do not.
+
+        """
+        return bool(self.hash_options)
+
+    def hashes(self, trust_internet: bool = True) -> Hashes:
+        """Return a hash-comparer that considers my option- and URL-based
+        hashes to be known-good.
+
+        Hashes in URLs--ones embedded in the requirements file, not ones
+        downloaded from an index server--are almost peers with ones from
+        flags. They satisfy --require-hashes (whether it was implicitly or
+        explicitly activated) but do not activate it. md5 and sha224 are not
+        allowed in flags, which should nudge people toward good algos. We
+        always OR all hashes together, even ones from URLs.
+
+        :param trust_internet: Whether to trust URL-based (#md5=...) hashes
+            downloaded from the internet, as by populate_link()
+
+        """
+        good_hashes = self.hash_options.copy()
+        link = self.link if trust_internet else self.original_link
+        if link and link.hash:
+            good_hashes.setdefault(link.hash_name, []).append(link.hash)
+        return Hashes(good_hashes)
+
+    def from_path(self) -> Optional[str]:
+        """Format a nice indicator to show where this "comes from" """
+        if self.req is None:
+            return None
+        s = str(self.req)
+        if self.comes_from:
+            if isinstance(self.comes_from, str):
+                comes_from = self.comes_from
+            else:
+                comes_from = self.comes_from.from_path()
+            if comes_from:
+                s += "->" + comes_from
+        return s
+
+    def ensure_build_location(
+        self, build_dir: str, autodelete: bool, parallel_builds: bool
+    ) -> str:
+        assert build_dir is not None
+        if self._temp_build_dir is not None:
+            assert self._temp_build_dir.path
+            return self._temp_build_dir.path
+        if self.req is None:
+            # Some systems have /tmp as a symlink which confuses custom
+            # builds (such as numpy). Thus, we ensure that the real path
+            # is returned.
+            self._temp_build_dir = TempDirectory(
+                kind=tempdir_kinds.REQ_BUILD, globally_managed=True
+            )
+
+            return self._temp_build_dir.path
+
+        # This is the only remaining place where we manually determine the path
+        # for the temporary directory. It is only needed for editables where
+        # it is the value of the --src option.
+
+        # When parallel builds are enabled, add a UUID to the build directory
+        # name so multiple builds do not interfere with each other.
+        dir_name: str = canonicalize_name(self.name)
+        if parallel_builds:
+            dir_name = f"{dir_name}_{uuid.uuid4().hex}"
+
+        # FIXME: Is there a better place to create the build_dir? (hg and bzr
+        # need this)
+        if not os.path.exists(build_dir):
+            logger.debug("Creating directory %s", build_dir)
+            os.makedirs(build_dir)
+        actual_build_dir = os.path.join(build_dir, dir_name)
+        # `None` indicates that we respect the globally-configured deletion
+        # settings, which is what we actually want when auto-deleting.
+        delete_arg = None if autodelete else False
+        return TempDirectory(
+            path=actual_build_dir,
+            delete=delete_arg,
+            kind=tempdir_kinds.REQ_BUILD,
+            globally_managed=True,
+        ).path
+
+    def _set_requirement(self) -> None:
+        """Set requirement after generating metadata."""
+        assert self.req is None
+        assert self.metadata is not None
+        assert self.source_dir is not None
+
+        # Construct a Requirement object from the generated metadata
+        if isinstance(parse_version(self.metadata["Version"]), Version):
+            op = "=="
+        else:
+            op = "==="
+
+        self.req = Requirement(
+            "".join(
+                [
+                    self.metadata["Name"],
+                    op,
+                    self.metadata["Version"],
+                ]
+            )
+        )
+
+    def warn_on_mismatching_name(self) -> None:
+        metadata_name = canonicalize_name(self.metadata["Name"])
+        if canonicalize_name(self.req.name) == metadata_name:
+            # Everything is fine.
+            return
+
+        # If we're here, there's a mismatch. Log a warning about it.
+        logger.warning(
+            "Generating metadata for package %s "
+            "produced metadata for project name %s. Fix your "
+            "#egg=%s fragments.",
+            self.name,
+            metadata_name,
+            self.name,
+        )
+        self.req = Requirement(metadata_name)
+
+    def check_if_exists(self, use_user_site: bool) -> None:
+        """Find an installed distribution that satisfies or conflicts
+        with this requirement, and set self.satisfied_by or
+        self.should_reinstall appropriately.
+        """
+        if self.req is None:
+            return
+        existing_dist = get_distribution(self.req.name)
+        if not existing_dist:
+            return
+
+        # pkg_resouces may contain a different copy of packaging.version from
+        # pip in if the downstream distributor does a poor job debundling pip.
+        # We avoid existing_dist.parsed_version and let SpecifierSet.contains
+        # parses the version instead.
+        existing_version = existing_dist.version
+        version_compatible = (
+            existing_version is not None
+            and self.req.specifier.contains(existing_version, prereleases=True)
+        )
+        if not version_compatible:
+            self.satisfied_by = None
+            if use_user_site:
+                if dist_in_usersite(existing_dist):
+                    self.should_reinstall = True
+                elif running_under_virtualenv() and dist_in_site_packages(
+                    existing_dist
+                ):
+                    raise InstallationError(
+                        "Will not install to the user site because it will "
+                        "lack sys.path precedence to {} in {}".format(
+                            existing_dist.project_name, existing_dist.location
+                        )
+                    )
+            else:
+                self.should_reinstall = True
+        else:
+            if self.editable:
+                self.should_reinstall = True
+                # when installing editables, nothing pre-existing should ever
+                # satisfy
+                self.satisfied_by = None
+            else:
+                self.satisfied_by = existing_dist
+
+    # Things valid for wheels
+    @property
+    def is_wheel(self) -> bool:
+        if not self.link:
+            return False
+        return self.link.is_wheel
+
+    # Things valid for sdists
+    @property
+    def unpacked_source_directory(self) -> str:
+        return os.path.join(
+            self.source_dir, self.link and self.link.subdirectory_fragment or ""
+        )
+
+    @property
+    def setup_py_path(self) -> str:
+        assert self.source_dir, f"No source dir for {self}"
+        setup_py = os.path.join(self.unpacked_source_directory, "setup.py")
+
+        return setup_py
+
+    @property
+    def setup_cfg_path(self) -> str:
+        assert self.source_dir, f"No source dir for {self}"
+        setup_cfg = os.path.join(self.unpacked_source_directory, "setup.cfg")
+
+        return setup_cfg
+
+    @property
+    def pyproject_toml_path(self) -> str:
+        assert self.source_dir, f"No source dir for {self}"
+        return make_pyproject_path(self.unpacked_source_directory)
+
+    def load_pyproject_toml(self) -> None:
+        """Load the pyproject.toml file.
+
+        After calling this routine, all of the attributes related to PEP 517
+        processing for this requirement have been set. In particular, the
+        use_pep517 attribute can be used to determine whether we should
+        follow the PEP 517 or legacy (setup.py) code path.
+        """
+        pyproject_toml_data = load_pyproject_toml(
+            self.use_pep517, self.pyproject_toml_path, self.setup_py_path, str(self)
+        )
+
+        if pyproject_toml_data is None:
+            self.use_pep517 = False
+            return
+
+        self.use_pep517 = True
+        requires, backend, check, backend_path = pyproject_toml_data
+        self.requirements_to_check = check
+        self.pyproject_requires = requires
+        self.pep517_backend = Pep517HookCaller(
+            self.unpacked_source_directory,
+            backend,
+            backend_path=backend_path,
+        )
+
+    def isolated_editable_sanity_check(self) -> None:
+        """Check that an editable requirement if valid for use with PEP 517/518.
+
+        This verifies that an editable that has a pyproject.toml either supports PEP 660
+        or as a setup.py or a setup.cfg
+        """
+        if (
+            self.editable
+            and self.use_pep517
+            and not self.supports_pyproject_editable()
+            and not os.path.isfile(self.setup_py_path)
+            and not os.path.isfile(self.setup_cfg_path)
+        ):
+            raise InstallationError(
+                f"Project {self} has a 'pyproject.toml' and its build "
+                f"backend is missing the 'build_editable' hook. Since it does not "
+                f"have a 'setup.py' nor a 'setup.cfg', "
+                f"it cannot be installed in editable mode. "
+                f"Consider using a build backend that supports PEP 660."
+            )
+
+    def prepare_metadata(self) -> None:
+        """Ensure that project metadata is available.
+
+        Under PEP 517 and PEP 660, call the backend hook to prepare the metadata.
+        Under legacy processing, call setup.py egg-info.
+        """
+        assert self.source_dir
+
+        if self.use_pep517:
+            assert self.pep517_backend is not None
+            if (
+                self.editable
+                and self.permit_editable_wheels
+                and self.supports_pyproject_editable()
+            ):
+                self.metadata_directory = generate_editable_metadata(
+                    build_env=self.build_env,
+                    backend=self.pep517_backend,
+                )
+            else:
+                self.metadata_directory = generate_metadata(
+                    build_env=self.build_env,
+                    backend=self.pep517_backend,
+                )
+        else:
+            self.metadata_directory = generate_metadata_legacy(
+                build_env=self.build_env,
+                setup_py_path=self.setup_py_path,
+                source_dir=self.unpacked_source_directory,
+                isolated=self.isolated,
+                details=self.name or f"from {self.link}",
+            )
+
+        # Act on the newly generated metadata, based on the name and version.
+        if not self.name:
+            self._set_requirement()
+        else:
+            self.warn_on_mismatching_name()
+
+        self.assert_source_matches_version()
+
+    @property
+    def metadata(self) -> Any:
+        if not hasattr(self, "_metadata"):
+            self._metadata = get_metadata(self.get_dist())
+
+        return self._metadata
+
+    def get_dist(self) -> Distribution:
+        return _get_dist(self.metadata_directory)
+
+    def assert_source_matches_version(self) -> None:
+        assert self.source_dir
+        version = self.metadata["version"]
+        if self.req.specifier and version not in self.req.specifier:
+            logger.warning(
+                "Requested %s, but installing version %s",
+                self,
+                version,
+            )
+        else:
+            logger.debug(
+                "Source in %s has version %s, which satisfies requirement %s",
+                display_path(self.source_dir),
+                version,
+                self,
+            )
+
+    # For both source distributions and editables
+    def ensure_has_source_dir(
+        self,
+        parent_dir: str,
+        autodelete: bool = False,
+        parallel_builds: bool = False,
+    ) -> None:
+        """Ensure that a source_dir is set.
+
+        This will create a temporary build dir if the name of the requirement
+        isn't known yet.
+
+        :param parent_dir: The ideal pip parent_dir for the source_dir.
+            Generally src_dir for editables and build_dir for sdists.
+        :return: self.source_dir
+        """
+        if self.source_dir is None:
+            self.source_dir = self.ensure_build_location(
+                parent_dir,
+                autodelete=autodelete,
+                parallel_builds=parallel_builds,
+            )
+
+    # For editable installations
+    def update_editable(self) -> None:
+        if not self.link:
+            logger.debug(
+                "Cannot update repository at %s; repository location is unknown",
+                self.source_dir,
+            )
+            return
+        assert self.editable
+        assert self.source_dir
+        if self.link.scheme == "file":
+            # Static paths don't get updated
+            return
+        vcs_backend = vcs.get_backend_for_scheme(self.link.scheme)
+        # Editable requirements are validated in Requirement constructors.
+        # So here, if it's neither a path nor a valid VCS URL, it's a bug.
+        assert vcs_backend, f"Unsupported VCS URL {self.link.url}"
+        hidden_url = hide_url(self.link.url)
+        vcs_backend.obtain(self.source_dir, url=hidden_url)
+
+    # Top-level Actions
+    def uninstall(
+        self, auto_confirm: bool = False, verbose: bool = False
+    ) -> Optional[UninstallPathSet]:
+        """
+        Uninstall the distribution currently satisfying this requirement.
+
+        Prompts before removing or modifying files unless
+        ``auto_confirm`` is True.
+
+        Refuses to delete or modify files outside of ``sys.prefix`` -
+        thus uninstallation within a virtual environment can only
+        modify that virtual environment, even if the virtualenv is
+        linked to global site-packages.
+
+        """
+        assert self.req
+        dist = get_distribution(self.req.name)
+        if not dist:
+            logger.warning("Skipping %s as it is not installed.", self.name)
+            return None
+        logger.info("Found existing installation: %s", dist)
+
+        uninstalled_pathset = UninstallPathSet.from_dist(dist)
+        uninstalled_pathset.remove(auto_confirm, verbose)
+        return uninstalled_pathset
+
+    def _get_archive_name(self, path: str, parentdir: str, rootdir: str) -> str:
+        def _clean_zip_name(name: str, prefix: str) -> str:
+            assert name.startswith(
+                prefix + os.path.sep
+            ), f"name {name!r} doesn't start with prefix {prefix!r}"
+            name = name[len(prefix) + 1 :]
+            name = name.replace(os.path.sep, "/")
+            return name
+
+        path = os.path.join(parentdir, path)
+        name = _clean_zip_name(path, rootdir)
+        return self.name + "/" + name
+
+    def archive(self, build_dir: Optional[str]) -> None:
+        """Saves archive to provided build_dir.
+
+        Used for saving downloaded VCS requirements as part of `pip download`.
+        """
+        assert self.source_dir
+        if build_dir is None:
+            return
+
+        create_archive = True
+        archive_name = "{}-{}.zip".format(self.name, self.metadata["version"])
+        archive_path = os.path.join(build_dir, archive_name)
+
+        if os.path.exists(archive_path):
+            response = ask_path_exists(
+                "The file {} exists. (i)gnore, (w)ipe, "
+                "(b)ackup, (a)bort ".format(display_path(archive_path)),
+                ("i", "w", "b", "a"),
+            )
+            if response == "i":
+                create_archive = False
+            elif response == "w":
+                logger.warning("Deleting %s", display_path(archive_path))
+                os.remove(archive_path)
+            elif response == "b":
+                dest_file = backup_dir(archive_path)
+                logger.warning(
+                    "Backing up %s to %s",
+                    display_path(archive_path),
+                    display_path(dest_file),
+                )
+                shutil.move(archive_path, dest_file)
+            elif response == "a":
+                sys.exit(-1)
+
+        if not create_archive:
+            return
+
+        zip_output = zipfile.ZipFile(
+            archive_path,
+            "w",
+            zipfile.ZIP_DEFLATED,
+            allowZip64=True,
+        )
+        with zip_output:
+            dir = os.path.normcase(os.path.abspath(self.unpacked_source_directory))
+            for dirpath, dirnames, filenames in os.walk(dir):
+                for dirname in dirnames:
+                    dir_arcname = self._get_archive_name(
+                        dirname,
+                        parentdir=dirpath,
+                        rootdir=dir,
+                    )
+                    zipdir = zipfile.ZipInfo(dir_arcname + "/")
+                    zipdir.external_attr = 0x1ED << 16  # 0o755
+                    zip_output.writestr(zipdir, "")
+                for filename in filenames:
+                    file_arcname = self._get_archive_name(
+                        filename,
+                        parentdir=dirpath,
+                        rootdir=dir,
+                    )
+                    filename = os.path.join(dirpath, filename)
+                    zip_output.write(filename, file_arcname)
+
+        logger.info("Saved %s", display_path(archive_path))
+
+    def install(
+        self,
+        install_options: List[str],
+        global_options: Optional[Sequence[str]] = None,
+        root: Optional[str] = None,
+        home: Optional[str] = None,
+        prefix: Optional[str] = None,
+        warn_script_location: bool = True,
+        use_user_site: bool = False,
+        pycompile: bool = True,
+    ) -> None:
+        scheme = get_scheme(
+            self.name,
+            user=use_user_site,
+            home=home,
+            root=root,
+            isolated=self.isolated,
+            prefix=prefix,
+        )
+
+        global_options = global_options if global_options is not None else []
+        if self.editable and not self.is_wheel:
+            install_editable_legacy(
+                install_options,
+                global_options,
+                prefix=prefix,
+                home=home,
+                use_user_site=use_user_site,
+                name=self.name,
+                setup_py_path=self.setup_py_path,
+                isolated=self.isolated,
+                build_env=self.build_env,
+                unpacked_source_directory=self.unpacked_source_directory,
+            )
+            self.install_succeeded = True
+            return
+
+        if self.is_wheel:
+            assert self.local_file_path
+            direct_url = None
+            if self.editable:
+                direct_url = direct_url_for_editable(self.unpacked_source_directory)
+            elif self.original_link:
+                direct_url = direct_url_from_link(
+                    self.original_link,
+                    self.source_dir,
+                    self.original_link_is_in_wheel_cache,
+                )
+            install_wheel(
+                self.name,
+                self.local_file_path,
+                scheme=scheme,
+                req_description=str(self.req),
+                pycompile=pycompile,
+                warn_script_location=warn_script_location,
+                direct_url=direct_url,
+                requested=self.user_supplied,
+            )
+            self.install_succeeded = True
+            return
+
+        # TODO: Why don't we do this for editable installs?
+
+        # Extend the list of global and install options passed on to
+        # the setup.py call with the ones from the requirements file.
+        # Options specified in requirements file override those
+        # specified on the command line, since the last option given
+        # to setup.py is the one that is used.
+        global_options = list(global_options) + self.global_options
+        install_options = list(install_options) + self.install_options
+
+        try:
+            success = install_legacy(
+                install_options=install_options,
+                global_options=global_options,
+                root=root,
+                home=home,
+                prefix=prefix,
+                use_user_site=use_user_site,
+                pycompile=pycompile,
+                scheme=scheme,
+                setup_py_path=self.setup_py_path,
+                isolated=self.isolated,
+                req_name=self.name,
+                build_env=self.build_env,
+                unpacked_source_directory=self.unpacked_source_directory,
+                req_description=str(self.req),
+            )
+        except LegacyInstallFailure as exc:
+            self.install_succeeded = False
+            raise exc.__cause__
+        except Exception:
+            self.install_succeeded = True
+            raise
+
+        self.install_succeeded = success
+
+        if success and self.legacy_install_reason == 8368:
+            deprecated(
+                reason=(
+                    "{} was installed using the legacy 'setup.py install' "
+                    "method, because a wheel could not be built for it.".format(
+                        self.name
+                    )
+                ),
+                replacement="to fix the wheel build issue reported above",
+                gone_in=None,
+                issue=8368,
+            )
+
+
+def check_invalid_constraint_type(req: InstallRequirement) -> str:
+
+    # Check for unsupported forms
+    problem = ""
+    if not req.name:
+        problem = "Unnamed requirements are not allowed as constraints"
+    elif req.editable:
+        problem = "Editable requirements are not allowed as constraints"
+    elif req.extras:
+        problem = "Constraints cannot have extras"
+
+    if problem:
+        deprecated(
+            reason=(
+                "Constraints are only allowed to take the form of a package "
+                "name and a version specifier. Other forms were originally "
+                "permitted as an accident of the implementation, but were "
+                "undocumented. The new implementation of the resolver no "
+                "longer supports these forms."
+            ),
+            replacement="replacing the constraint with a requirement",
+            # No plan yet for when the new resolver becomes default
+            gone_in=None,
+            issue=8210,
+        )
+
+    return problem
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/req/req_set.py b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_set.py
new file mode 100644
index 0000000..6626c37
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_set.py
@@ -0,0 +1,189 @@
+import logging
+from collections import OrderedDict
+from typing import Dict, Iterable, List, Optional, Tuple
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.exceptions import InstallationError
+from pip._internal.models.wheel import Wheel
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.utils import compatibility_tags
+
+logger = logging.getLogger(__name__)
+
+
+class RequirementSet:
+    def __init__(self, check_supported_wheels: bool = True) -> None:
+        """Create a RequirementSet."""
+
+        self.requirements: Dict[str, InstallRequirement] = OrderedDict()
+        self.check_supported_wheels = check_supported_wheels
+
+        self.unnamed_requirements: List[InstallRequirement] = []
+
+    def __str__(self) -> str:
+        requirements = sorted(
+            (req for req in self.requirements.values() if not req.comes_from),
+            key=lambda req: canonicalize_name(req.name or ""),
+        )
+        return " ".join(str(req.req) for req in requirements)
+
+    def __repr__(self) -> str:
+        requirements = sorted(
+            self.requirements.values(),
+            key=lambda req: canonicalize_name(req.name or ""),
+        )
+
+        format_string = "<{classname} object; {count} requirement(s): {reqs}>"
+        return format_string.format(
+            classname=self.__class__.__name__,
+            count=len(requirements),
+            reqs=", ".join(str(req.req) for req in requirements),
+        )
+
+    def add_unnamed_requirement(self, install_req: InstallRequirement) -> None:
+        assert not install_req.name
+        self.unnamed_requirements.append(install_req)
+
+    def add_named_requirement(self, install_req: InstallRequirement) -> None:
+        assert install_req.name
+
+        project_name = canonicalize_name(install_req.name)
+        self.requirements[project_name] = install_req
+
+    def add_requirement(
+        self,
+        install_req: InstallRequirement,
+        parent_req_name: Optional[str] = None,
+        extras_requested: Optional[Iterable[str]] = None,
+    ) -> Tuple[List[InstallRequirement], Optional[InstallRequirement]]:
+        """Add install_req as a requirement to install.
+
+        :param parent_req_name: The name of the requirement that needed this
+            added. The name is used because when multiple unnamed requirements
+            resolve to the same name, we could otherwise end up with dependency
+            links that point outside the Requirements set. parent_req must
+            already be added. Note that None implies that this is a user
+            supplied requirement, vs an inferred one.
+        :param extras_requested: an iterable of extras used to evaluate the
+            environment markers.
+        :return: Additional requirements to scan. That is either [] if
+            the requirement is not applicable, or [install_req] if the
+            requirement is applicable and has just been added.
+        """
+        # If the markers do not match, ignore this requirement.
+        if not install_req.match_markers(extras_requested):
+            logger.info(
+                "Ignoring %s: markers '%s' don't match your environment",
+                install_req.name,
+                install_req.markers,
+            )
+            return [], None
+
+        # If the wheel is not supported, raise an error.
+        # Should check this after filtering out based on environment markers to
+        # allow specifying different wheels based on the environment/OS, in a
+        # single requirements file.
+        if install_req.link and install_req.link.is_wheel:
+            wheel = Wheel(install_req.link.filename)
+            tags = compatibility_tags.get_supported()
+            if self.check_supported_wheels and not wheel.supported(tags):
+                raise InstallationError(
+                    "{} is not a supported wheel on this platform.".format(
+                        wheel.filename
+                    )
+                )
+
+        # This next bit is really a sanity check.
+        assert (
+            not install_req.user_supplied or parent_req_name is None
+        ), "a user supplied req shouldn't have a parent"
+
+        # Unnamed requirements are scanned again and the requirement won't be
+        # added as a dependency until after scanning.
+        if not install_req.name:
+            self.add_unnamed_requirement(install_req)
+            return [install_req], None
+
+        try:
+            existing_req: Optional[InstallRequirement] = self.get_requirement(
+                install_req.name
+            )
+        except KeyError:
+            existing_req = None
+
+        has_conflicting_requirement = (
+            parent_req_name is None
+            and existing_req
+            and not existing_req.constraint
+            and existing_req.extras == install_req.extras
+            and existing_req.req
+            and install_req.req
+            and existing_req.req.specifier != install_req.req.specifier
+        )
+        if has_conflicting_requirement:
+            raise InstallationError(
+                "Double requirement given: {} (already in {}, name={!r})".format(
+                    install_req, existing_req, install_req.name
+                )
+            )
+
+        # When no existing requirement exists, add the requirement as a
+        # dependency and it will be scanned again after.
+        if not existing_req:
+            self.add_named_requirement(install_req)
+            # We'd want to rescan this requirement later
+            return [install_req], install_req
+
+        # Assume there's no need to scan, and that we've already
+        # encountered this for scanning.
+        if install_req.constraint or not existing_req.constraint:
+            return [], existing_req
+
+        does_not_satisfy_constraint = install_req.link and not (
+            existing_req.link and install_req.link.path == existing_req.link.path
+        )
+        if does_not_satisfy_constraint:
+            raise InstallationError(
+                "Could not satisfy constraints for '{}': "
+                "installation from path or url cannot be "
+                "constrained to a version".format(install_req.name)
+            )
+        # If we're now installing a constraint, mark the existing
+        # object for real installation.
+        existing_req.constraint = False
+        # If we're now installing a user supplied requirement,
+        # mark the existing object as such.
+        if install_req.user_supplied:
+            existing_req.user_supplied = True
+        existing_req.extras = tuple(
+            sorted(set(existing_req.extras) | set(install_req.extras))
+        )
+        logger.debug(
+            "Setting %s extras to: %s",
+            existing_req,
+            existing_req.extras,
+        )
+        # Return the existing requirement for addition to the parent and
+        # scanning again.
+        return [existing_req], existing_req
+
+    def has_requirement(self, name: str) -> bool:
+        project_name = canonicalize_name(name)
+
+        return (
+            project_name in self.requirements
+            and not self.requirements[project_name].constraint
+        )
+
+    def get_requirement(self, name: str) -> InstallRequirement:
+        project_name = canonicalize_name(name)
+
+        if project_name in self.requirements:
+            return self.requirements[project_name]
+
+        raise KeyError(f"No project with the name {name!r}")
+
+    @property
+    def all_requirements(self) -> List[InstallRequirement]:
+        return self.unnamed_requirements + list(self.requirements.values())
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/req/req_tracker.py b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_tracker.py
new file mode 100644
index 0000000..24d3c53
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_tracker.py
@@ -0,0 +1,124 @@
+import contextlib
+import hashlib
+import logging
+import os
+from types import TracebackType
+from typing import Dict, Iterator, Optional, Set, Type, Union
+
+from pip._internal.models.link import Link
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.utils.temp_dir import TempDirectory
+
+logger = logging.getLogger(__name__)
+
+
+@contextlib.contextmanager
+def update_env_context_manager(**changes: str) -> Iterator[None]:
+    target = os.environ
+
+    # Save values from the target and change them.
+    non_existent_marker = object()
+    saved_values: Dict[str, Union[object, str]] = {}
+    for name, new_value in changes.items():
+        try:
+            saved_values[name] = target[name]
+        except KeyError:
+            saved_values[name] = non_existent_marker
+        target[name] = new_value
+
+    try:
+        yield
+    finally:
+        # Restore original values in the target.
+        for name, original_value in saved_values.items():
+            if original_value is non_existent_marker:
+                del target[name]
+            else:
+                assert isinstance(original_value, str)  # for mypy
+                target[name] = original_value
+
+
+@contextlib.contextmanager
+def get_requirement_tracker() -> Iterator["RequirementTracker"]:
+    root = os.environ.get("PIP_REQ_TRACKER")
+    with contextlib.ExitStack() as ctx:
+        if root is None:
+            root = ctx.enter_context(TempDirectory(kind="req-tracker")).path
+            ctx.enter_context(update_env_context_manager(PIP_REQ_TRACKER=root))
+            logger.debug("Initialized build tracking at %s", root)
+
+        with RequirementTracker(root) as tracker:
+            yield tracker
+
+
+class RequirementTracker:
+    def __init__(self, root: str) -> None:
+        self._root = root
+        self._entries: Set[InstallRequirement] = set()
+        logger.debug("Created build tracker: %s", self._root)
+
+    def __enter__(self) -> "RequirementTracker":
+        logger.debug("Entered build tracker: %s", self._root)
+        return self
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> None:
+        self.cleanup()
+
+    def _entry_path(self, link: Link) -> str:
+        hashed = hashlib.sha224(link.url_without_fragment.encode()).hexdigest()
+        return os.path.join(self._root, hashed)
+
+    def add(self, req: InstallRequirement) -> None:
+        """Add an InstallRequirement to build tracking."""
+
+        assert req.link
+        # Get the file to write information about this requirement.
+        entry_path = self._entry_path(req.link)
+
+        # Try reading from the file. If it exists and can be read from, a build
+        # is already in progress, so a LookupError is raised.
+        try:
+            with open(entry_path) as fp:
+                contents = fp.read()
+        except FileNotFoundError:
+            pass
+        else:
+            message = "{} is already being built: {}".format(req.link, contents)
+            raise LookupError(message)
+
+        # If we're here, req should really not be building already.
+        assert req not in self._entries
+
+        # Start tracking this requirement.
+        with open(entry_path, "w", encoding="utf-8") as fp:
+            fp.write(str(req))
+        self._entries.add(req)
+
+        logger.debug("Added %s to build tracker %r", req, self._root)
+
+    def remove(self, req: InstallRequirement) -> None:
+        """Remove an InstallRequirement from build tracking."""
+
+        assert req.link
+        # Delete the created file and the corresponding entries.
+        os.unlink(self._entry_path(req.link))
+        self._entries.remove(req)
+
+        logger.debug("Removed %s from build tracker %r", req, self._root)
+
+    def cleanup(self) -> None:
+        for req in set(self._entries):
+            self.remove(req)
+
+        logger.debug("Removed build tracker: %r", self._root)
+
+    @contextlib.contextmanager
+    def track(self, req: InstallRequirement) -> Iterator[None]:
+        self.add(req)
+        yield
+        self.remove(req)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/req/req_uninstall.py b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_uninstall.py
new file mode 100644
index 0000000..779e93b
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/req/req_uninstall.py
@@ -0,0 +1,633 @@
+import csv
+import functools
+import os
+import sys
+import sysconfig
+from importlib.util import cache_from_source
+from typing import Any, Callable, Dict, Iterable, Iterator, List, Optional, Set, Tuple
+
+from pip._vendor import pkg_resources
+from pip._vendor.pkg_resources import Distribution
+
+from pip._internal.exceptions import UninstallationError
+from pip._internal.locations import get_bin_prefix, get_bin_user
+from pip._internal.utils.compat import WINDOWS
+from pip._internal.utils.egg_link import egg_link_path_from_location
+from pip._internal.utils.logging import getLogger, indent_log
+from pip._internal.utils.misc import (
+    ask,
+    dist_in_usersite,
+    dist_is_local,
+    is_local,
+    normalize_path,
+    renames,
+    rmtree,
+)
+from pip._internal.utils.temp_dir import AdjacentTempDirectory, TempDirectory
+
+logger = getLogger(__name__)
+
+
+def _script_names(dist: Distribution, script_name: str, is_gui: bool) -> List[str]:
+    """Create the fully qualified name of the files created by
+    {console,gui}_scripts for the given ``dist``.
+    Returns the list of file names
+    """
+    if dist_in_usersite(dist):
+        bin_dir = get_bin_user()
+    else:
+        bin_dir = get_bin_prefix()
+    exe_name = os.path.join(bin_dir, script_name)
+    paths_to_remove = [exe_name]
+    if WINDOWS:
+        paths_to_remove.append(exe_name + ".exe")
+        paths_to_remove.append(exe_name + ".exe.manifest")
+        if is_gui:
+            paths_to_remove.append(exe_name + "-script.pyw")
+        else:
+            paths_to_remove.append(exe_name + "-script.py")
+    return paths_to_remove
+
+
+def _unique(fn: Callable[..., Iterator[Any]]) -> Callable[..., Iterator[Any]]:
+    @functools.wraps(fn)
+    def unique(*args: Any, **kw: Any) -> Iterator[Any]:
+        seen: Set[Any] = set()
+        for item in fn(*args, **kw):
+            if item not in seen:
+                seen.add(item)
+                yield item
+
+    return unique
+
+
+@_unique
+def uninstallation_paths(dist: Distribution) -> Iterator[str]:
+    """
+    Yield all the uninstallation paths for dist based on RECORD-without-.py[co]
+
+    Yield paths to all the files in RECORD. For each .py file in RECORD, add
+    the .pyc and .pyo in the same directory.
+
+    UninstallPathSet.add() takes care of the __pycache__ .py[co].
+
+    If RECORD is not found, raises UninstallationError,
+    with possible information from the INSTALLER file.
+
+    https://packaging.python.org/specifications/recording-installed-packages/
+    """
+    try:
+        r = csv.reader(dist.get_metadata_lines("RECORD"))
+    except FileNotFoundError as missing_record_exception:
+        msg = "Cannot uninstall {dist}, RECORD file not found.".format(dist=dist)
+        try:
+            installer = next(dist.get_metadata_lines("INSTALLER"))
+            if not installer or installer == "pip":
+                raise ValueError()
+        except (OSError, StopIteration, ValueError):
+            dep = "{}=={}".format(dist.project_name, dist.version)
+            msg += (
+                " You might be able to recover from this via: "
+                "'pip install --force-reinstall --no-deps {}'.".format(dep)
+            )
+        else:
+            msg += " Hint: The package was installed by {}.".format(installer)
+        raise UninstallationError(msg) from missing_record_exception
+    for row in r:
+        path = os.path.join(dist.location, row[0])
+        yield path
+        if path.endswith(".py"):
+            dn, fn = os.path.split(path)
+            base = fn[:-3]
+            path = os.path.join(dn, base + ".pyc")
+            yield path
+            path = os.path.join(dn, base + ".pyo")
+            yield path
+
+
+def compact(paths: Iterable[str]) -> Set[str]:
+    """Compact a path set to contain the minimal number of paths
+    necessary to contain all paths in the set. If /a/path/ and
+    /a/path/to/a/file.txt are both in the set, leave only the
+    shorter path."""
+
+    sep = os.path.sep
+    short_paths: Set[str] = set()
+    for path in sorted(paths, key=len):
+        should_skip = any(
+            path.startswith(shortpath.rstrip("*"))
+            and path[len(shortpath.rstrip("*").rstrip(sep))] == sep
+            for shortpath in short_paths
+        )
+        if not should_skip:
+            short_paths.add(path)
+    return short_paths
+
+
+def compress_for_rename(paths: Iterable[str]) -> Set[str]:
+    """Returns a set containing the paths that need to be renamed.
+
+    This set may include directories when the original sequence of paths
+    included every file on disk.
+    """
+    case_map = {os.path.normcase(p): p for p in paths}
+    remaining = set(case_map)
+    unchecked = sorted({os.path.split(p)[0] for p in case_map.values()}, key=len)
+    wildcards: Set[str] = set()
+
+    def norm_join(*a: str) -> str:
+        return os.path.normcase(os.path.join(*a))
+
+    for root in unchecked:
+        if any(os.path.normcase(root).startswith(w) for w in wildcards):
+            # This directory has already been handled.
+            continue
+
+        all_files: Set[str] = set()
+        all_subdirs: Set[str] = set()
+        for dirname, subdirs, files in os.walk(root):
+            all_subdirs.update(norm_join(root, dirname, d) for d in subdirs)
+            all_files.update(norm_join(root, dirname, f) for f in files)
+        # If all the files we found are in our remaining set of files to
+        # remove, then remove them from the latter set and add a wildcard
+        # for the directory.
+        if not (all_files - remaining):
+            remaining.difference_update(all_files)
+            wildcards.add(root + os.sep)
+
+    return set(map(case_map.__getitem__, remaining)) | wildcards
+
+
+def compress_for_output_listing(paths: Iterable[str]) -> Tuple[Set[str], Set[str]]:
+    """Returns a tuple of 2 sets of which paths to display to user
+
+    The first set contains paths that would be deleted. Files of a package
+    are not added and the top-level directory of the package has a '*' added
+    at the end - to signify that all it's contents are removed.
+
+    The second set contains files that would have been skipped in the above
+    folders.
+    """
+
+    will_remove = set(paths)
+    will_skip = set()
+
+    # Determine folders and files
+    folders = set()
+    files = set()
+    for path in will_remove:
+        if path.endswith(".pyc"):
+            continue
+        if path.endswith("__init__.py") or ".dist-info" in path:
+            folders.add(os.path.dirname(path))
+        files.add(path)
+
+    # probably this one https://github.com/python/mypy/issues/390
+    _normcased_files = set(map(os.path.normcase, files))  # type: ignore
+
+    folders = compact(folders)
+
+    # This walks the tree using os.walk to not miss extra folders
+    # that might get added.
+    for folder in folders:
+        for dirpath, _, dirfiles in os.walk(folder):
+            for fname in dirfiles:
+                if fname.endswith(".pyc"):
+                    continue
+
+                file_ = os.path.join(dirpath, fname)
+                if (
+                    os.path.isfile(file_)
+                    and os.path.normcase(file_) not in _normcased_files
+                ):
+                    # We are skipping this file. Add it to the set.
+                    will_skip.add(file_)
+
+    will_remove = files | {os.path.join(folder, "*") for folder in folders}
+
+    return will_remove, will_skip
+
+
+class StashedUninstallPathSet:
+    """A set of file rename operations to stash files while
+    tentatively uninstalling them."""
+
+    def __init__(self) -> None:
+        # Mapping from source file root to [Adjacent]TempDirectory
+        # for files under that directory.
+        self._save_dirs: Dict[str, TempDirectory] = {}
+        # (old path, new path) tuples for each move that may need
+        # to be undone.
+        self._moves: List[Tuple[str, str]] = []
+
+    def _get_directory_stash(self, path: str) -> str:
+        """Stashes a directory.
+
+        Directories are stashed adjacent to their original location if
+        possible, or else moved/copied into the user's temp dir."""
+
+        try:
+            save_dir: TempDirectory = AdjacentTempDirectory(path)
+        except OSError:
+            save_dir = TempDirectory(kind="uninstall")
+        self._save_dirs[os.path.normcase(path)] = save_dir
+
+        return save_dir.path
+
+    def _get_file_stash(self, path: str) -> str:
+        """Stashes a file.
+
+        If no root has been provided, one will be created for the directory
+        in the user's temp directory."""
+        path = os.path.normcase(path)
+        head, old_head = os.path.dirname(path), None
+        save_dir = None
+
+        while head != old_head:
+            try:
+                save_dir = self._save_dirs[head]
+                break
+            except KeyError:
+                pass
+            head, old_head = os.path.dirname(head), head
+        else:
+            # Did not find any suitable root
+            head = os.path.dirname(path)
+            save_dir = TempDirectory(kind="uninstall")
+            self._save_dirs[head] = save_dir
+
+        relpath = os.path.relpath(path, head)
+        if relpath and relpath != os.path.curdir:
+            return os.path.join(save_dir.path, relpath)
+        return save_dir.path
+
+    def stash(self, path: str) -> str:
+        """Stashes the directory or file and returns its new location.
+        Handle symlinks as files to avoid modifying the symlink targets.
+        """
+        path_is_dir = os.path.isdir(path) and not os.path.islink(path)
+        if path_is_dir:
+            new_path = self._get_directory_stash(path)
+        else:
+            new_path = self._get_file_stash(path)
+
+        self._moves.append((path, new_path))
+        if path_is_dir and os.path.isdir(new_path):
+            # If we're moving a directory, we need to
+            # remove the destination first or else it will be
+            # moved to inside the existing directory.
+            # We just created new_path ourselves, so it will
+            # be removable.
+            os.rmdir(new_path)
+        renames(path, new_path)
+        return new_path
+
+    def commit(self) -> None:
+        """Commits the uninstall by removing stashed files."""
+        for _, save_dir in self._save_dirs.items():
+            save_dir.cleanup()
+        self._moves = []
+        self._save_dirs = {}
+
+    def rollback(self) -> None:
+        """Undoes the uninstall by moving stashed files back."""
+        for p in self._moves:
+            logger.info("Moving to %s\n from %s", *p)
+
+        for new_path, path in self._moves:
+            try:
+                logger.debug("Replacing %s from %s", new_path, path)
+                if os.path.isfile(new_path) or os.path.islink(new_path):
+                    os.unlink(new_path)
+                elif os.path.isdir(new_path):
+                    rmtree(new_path)
+                renames(path, new_path)
+            except OSError as ex:
+                logger.error("Failed to restore %s", new_path)
+                logger.debug("Exception: %s", ex)
+
+        self.commit()
+
+    @property
+    def can_rollback(self) -> bool:
+        return bool(self._moves)
+
+
+class UninstallPathSet:
+    """A set of file paths to be removed in the uninstallation of a
+    requirement."""
+
+    def __init__(self, dist: Distribution) -> None:
+        self.paths: Set[str] = set()
+        self._refuse: Set[str] = set()
+        self.pth: Dict[str, UninstallPthEntries] = {}
+        self.dist = dist
+        self._moved_paths = StashedUninstallPathSet()
+
+    def _permitted(self, path: str) -> bool:
+        """
+        Return True if the given path is one we are permitted to
+        remove/modify, False otherwise.
+
+        """
+        return is_local(path)
+
+    def add(self, path: str) -> None:
+        head, tail = os.path.split(path)
+
+        # we normalize the head to resolve parent directory symlinks, but not
+        # the tail, since we only want to uninstall symlinks, not their targets
+        path = os.path.join(normalize_path(head), os.path.normcase(tail))
+
+        if not os.path.exists(path):
+            return
+        if self._permitted(path):
+            self.paths.add(path)
+        else:
+            self._refuse.add(path)
+
+        # __pycache__ files can show up after 'installed-files.txt' is created,
+        # due to imports
+        if os.path.splitext(path)[1] == ".py":
+            self.add(cache_from_source(path))
+
+    def add_pth(self, pth_file: str, entry: str) -> None:
+        pth_file = normalize_path(pth_file)
+        if self._permitted(pth_file):
+            if pth_file not in self.pth:
+                self.pth[pth_file] = UninstallPthEntries(pth_file)
+            self.pth[pth_file].add(entry)
+        else:
+            self._refuse.add(pth_file)
+
+    def remove(self, auto_confirm: bool = False, verbose: bool = False) -> None:
+        """Remove paths in ``self.paths`` with confirmation (unless
+        ``auto_confirm`` is True)."""
+
+        if not self.paths:
+            logger.info(
+                "Can't uninstall '%s'. No files were found to uninstall.",
+                self.dist.project_name,
+            )
+            return
+
+        dist_name_version = self.dist.project_name + "-" + self.dist.version
+        logger.info("Uninstalling %s:", dist_name_version)
+
+        with indent_log():
+            if auto_confirm or self._allowed_to_proceed(verbose):
+                moved = self._moved_paths
+
+                for_rename = compress_for_rename(self.paths)
+
+                for path in sorted(compact(for_rename)):
+                    moved.stash(path)
+                    logger.verbose("Removing file or directory %s", path)
+
+                for pth in self.pth.values():
+                    pth.remove()
+
+                logger.info("Successfully uninstalled %s", dist_name_version)
+
+    def _allowed_to_proceed(self, verbose: bool) -> bool:
+        """Display which files would be deleted and prompt for confirmation"""
+
+        def _display(msg: str, paths: Iterable[str]) -> None:
+            if not paths:
+                return
+
+            logger.info(msg)
+            with indent_log():
+                for path in sorted(compact(paths)):
+                    logger.info(path)
+
+        if not verbose:
+            will_remove, will_skip = compress_for_output_listing(self.paths)
+        else:
+            # In verbose mode, display all the files that are going to be
+            # deleted.
+            will_remove = set(self.paths)
+            will_skip = set()
+
+        _display("Would remove:", will_remove)
+        _display("Would not remove (might be manually added):", will_skip)
+        _display("Would not remove (outside of prefix):", self._refuse)
+        if verbose:
+            _display("Will actually move:", compress_for_rename(self.paths))
+
+        return ask("Proceed (Y/n)? ", ("y", "n", "")) != "n"
+
+    def rollback(self) -> None:
+        """Rollback the changes previously made by remove()."""
+        if not self._moved_paths.can_rollback:
+            logger.error(
+                "Can't roll back %s; was not uninstalled",
+                self.dist.project_name,
+            )
+            return
+        logger.info("Rolling back uninstall of %s", self.dist.project_name)
+        self._moved_paths.rollback()
+        for pth in self.pth.values():
+            pth.rollback()
+
+    def commit(self) -> None:
+        """Remove temporary save dir: rollback will no longer be possible."""
+        self._moved_paths.commit()
+
+    @classmethod
+    def from_dist(cls, dist: Distribution) -> "UninstallPathSet":
+        dist_path = normalize_path(dist.location)
+        if not dist_is_local(dist):
+            logger.info(
+                "Not uninstalling %s at %s, outside environment %s",
+                dist.key,
+                dist_path,
+                sys.prefix,
+            )
+            return cls(dist)
+
+        if dist_path in {
+            p
+            for p in {sysconfig.get_path("stdlib"), sysconfig.get_path("platstdlib")}
+            if p
+        }:
+            logger.info(
+                "Not uninstalling %s at %s, as it is in the standard library.",
+                dist.key,
+                dist_path,
+            )
+            return cls(dist)
+
+        paths_to_remove = cls(dist)
+        develop_egg_link = egg_link_path_from_location(dist.project_name)
+        develop_egg_link_egg_info = "{}.egg-info".format(
+            pkg_resources.to_filename(dist.project_name)
+        )
+        egg_info_exists = dist.egg_info and os.path.exists(dist.egg_info)
+        # Special case for distutils installed package
+        distutils_egg_info = getattr(dist._provider, "path", None)
+
+        # Uninstall cases order do matter as in the case of 2 installs of the
+        # same package, pip needs to uninstall the currently detected version
+        if (
+            egg_info_exists
+            and dist.egg_info.endswith(".egg-info")
+            and not dist.egg_info.endswith(develop_egg_link_egg_info)
+        ):
+            # if dist.egg_info.endswith(develop_egg_link_egg_info), we
+            # are in fact in the develop_egg_link case
+            paths_to_remove.add(dist.egg_info)
+            if dist.has_metadata("installed-files.txt"):
+                for installed_file in dist.get_metadata(
+                    "installed-files.txt"
+                ).splitlines():
+                    path = os.path.normpath(os.path.join(dist.egg_info, installed_file))
+                    paths_to_remove.add(path)
+            # FIXME: need a test for this elif block
+            # occurs with --single-version-externally-managed/--record outside
+            # of pip
+            elif dist.has_metadata("top_level.txt"):
+                if dist.has_metadata("namespace_packages.txt"):
+                    namespaces = dist.get_metadata("namespace_packages.txt")
+                else:
+                    namespaces = []
+                for top_level_pkg in [
+                    p
+                    for p in dist.get_metadata("top_level.txt").splitlines()
+                    if p and p not in namespaces
+                ]:
+                    path = os.path.join(dist.location, top_level_pkg)
+                    paths_to_remove.add(path)
+                    paths_to_remove.add(path + ".py")
+                    paths_to_remove.add(path + ".pyc")
+                    paths_to_remove.add(path + ".pyo")
+
+        elif distutils_egg_info:
+            raise UninstallationError(
+                "Cannot uninstall {!r}. It is a distutils installed project "
+                "and thus we cannot accurately determine which files belong "
+                "to it which would lead to only a partial uninstall.".format(
+                    dist.project_name,
+                )
+            )
+
+        elif dist.location.endswith(".egg"):
+            # package installed by easy_install
+            # We cannot match on dist.egg_name because it can slightly vary
+            # i.e. setuptools-0.6c11-py2.6.egg vs setuptools-0.6rc11-py2.6.egg
+            paths_to_remove.add(dist.location)
+            easy_install_egg = os.path.split(dist.location)[1]
+            easy_install_pth = os.path.join(
+                os.path.dirname(dist.location), "easy-install.pth"
+            )
+            paths_to_remove.add_pth(easy_install_pth, "./" + easy_install_egg)
+
+        elif egg_info_exists and dist.egg_info.endswith(".dist-info"):
+            for path in uninstallation_paths(dist):
+                paths_to_remove.add(path)
+
+        elif develop_egg_link:
+            # develop egg
+            with open(develop_egg_link) as fh:
+                link_pointer = os.path.normcase(fh.readline().strip())
+            assert (
+                link_pointer == dist.location
+            ), "Egg-link {} does not match installed location of {} (at {})".format(
+                link_pointer, dist.project_name, dist.location
+            )
+            paths_to_remove.add(develop_egg_link)
+            easy_install_pth = os.path.join(
+                os.path.dirname(develop_egg_link), "easy-install.pth"
+            )
+            paths_to_remove.add_pth(easy_install_pth, dist.location)
+
+        else:
+            logger.debug(
+                "Not sure how to uninstall: %s - Check: %s",
+                dist,
+                dist.location,
+            )
+
+        # find distutils scripts= scripts
+        if dist.has_metadata("scripts") and dist.metadata_isdir("scripts"):
+            for script in dist.metadata_listdir("scripts"):
+                if dist_in_usersite(dist):
+                    bin_dir = get_bin_user()
+                else:
+                    bin_dir = get_bin_prefix()
+                paths_to_remove.add(os.path.join(bin_dir, script))
+                if WINDOWS:
+                    paths_to_remove.add(os.path.join(bin_dir, script) + ".bat")
+
+        # find console_scripts
+        _scripts_to_remove = []
+        console_scripts = dist.get_entry_map(group="console_scripts")
+        for name in console_scripts.keys():
+            _scripts_to_remove.extend(_script_names(dist, name, False))
+        # find gui_scripts
+        gui_scripts = dist.get_entry_map(group="gui_scripts")
+        for name in gui_scripts.keys():
+            _scripts_to_remove.extend(_script_names(dist, name, True))
+
+        for s in _scripts_to_remove:
+            paths_to_remove.add(s)
+
+        return paths_to_remove
+
+
+class UninstallPthEntries:
+    def __init__(self, pth_file: str) -> None:
+        self.file = pth_file
+        self.entries: Set[str] = set()
+        self._saved_lines: Optional[List[bytes]] = None
+
+    def add(self, entry: str) -> None:
+        entry = os.path.normcase(entry)
+        # On Windows, os.path.normcase converts the entry to use
+        # backslashes.  This is correct for entries that describe absolute
+        # paths outside of site-packages, but all the others use forward
+        # slashes.
+        # os.path.splitdrive is used instead of os.path.isabs because isabs
+        # treats non-absolute paths with drive letter markings like c:foo\bar
+        # as absolute paths. It also does not recognize UNC paths if they don't
+        # have more than "\\sever\share". Valid examples: "\\server\share\" or
+        # "\\server\share\folder".
+        if WINDOWS and not os.path.splitdrive(entry)[0]:
+            entry = entry.replace("\\", "/")
+        self.entries.add(entry)
+
+    def remove(self) -> None:
+        logger.verbose("Removing pth entries from %s:", self.file)
+
+        # If the file doesn't exist, log a warning and return
+        if not os.path.isfile(self.file):
+            logger.warning("Cannot remove entries from nonexistent file %s", self.file)
+            return
+        with open(self.file, "rb") as fh:
+            # windows uses '\r\n' with py3k, but uses '\n' with py2.x
+            lines = fh.readlines()
+            self._saved_lines = lines
+        if any(b"\r\n" in line for line in lines):
+            endline = "\r\n"
+        else:
+            endline = "\n"
+        # handle missing trailing newline
+        if lines and not lines[-1].endswith(endline.encode("utf-8")):
+            lines[-1] = lines[-1] + endline.encode("utf-8")
+        for entry in self.entries:
+            try:
+                logger.verbose("Removing entry: %s", entry)
+                lines.remove((entry + endline).encode("utf-8"))
+            except ValueError:
+                pass
+        with open(self.file, "wb") as fh:
+            fh.writelines(lines)
+
+    def rollback(self) -> bool:
+        if self._saved_lines is None:
+            logger.error("Cannot roll back changes to %s, none were made", self.file)
+            return False
+        logger.debug("Rolling %s back to previous state", self.file)
+        with open(self.file, "wb") as fh:
+            fh.writelines(self._saved_lines)
+        return True
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/base.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/base.py
new file mode 100644
index 0000000..42dade1
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/base.py
@@ -0,0 +1,20 @@
+from typing import Callable, List, Optional
+
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.req.req_set import RequirementSet
+
+InstallRequirementProvider = Callable[
+    [str, Optional[InstallRequirement]], InstallRequirement
+]
+
+
+class BaseResolver:
+    def resolve(
+        self, root_reqs: List[InstallRequirement], check_supported_wheels: bool
+    ) -> RequirementSet:
+        raise NotImplementedError()
+
+    def get_installation_order(
+        self, req_set: RequirementSet
+    ) -> List[InstallRequirement]:
+        raise NotImplementedError()
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/legacy/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/legacy/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/legacy/resolver.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/legacy/resolver.py
new file mode 100644
index 0000000..09caaa6
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/legacy/resolver.py
@@ -0,0 +1,467 @@
+"""Dependency Resolution
+
+The dependency resolution in pip is performed as follows:
+
+for top-level requirements:
+    a. only one spec allowed per project, regardless of conflicts or not.
+       otherwise a "double requirement" exception is raised
+    b. they override sub-dependency requirements.
+for sub-dependencies
+    a. "first found, wins" (where the order is breadth first)
+"""
+
+# The following comment should be removed at some point in the future.
+# mypy: strict-optional=False
+
+import logging
+import sys
+from collections import defaultdict
+from itertools import chain
+from typing import DefaultDict, Iterable, List, Optional, Set, Tuple
+
+from pip._vendor.packaging import specifiers
+from pip._vendor.packaging.requirements import Requirement
+
+from pip._internal.cache import WheelCache
+from pip._internal.exceptions import (
+    BestVersionAlreadyInstalled,
+    DistributionNotFound,
+    HashError,
+    HashErrors,
+    NoneMetadataError,
+    UnsupportedPythonVersion,
+)
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.metadata import BaseDistribution
+from pip._internal.models.link import Link
+from pip._internal.operations.prepare import RequirementPreparer
+from pip._internal.req.req_install import (
+    InstallRequirement,
+    check_invalid_constraint_type,
+)
+from pip._internal.req.req_set import RequirementSet
+from pip._internal.resolution.base import BaseResolver, InstallRequirementProvider
+from pip._internal.utils.compatibility_tags import get_supported
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import dist_in_usersite, normalize_version_info
+from pip._internal.utils.packaging import check_requires_python
+
+logger = logging.getLogger(__name__)
+
+DiscoveredDependencies = DefaultDict[str, List[InstallRequirement]]
+
+
+def _check_dist_requires_python(
+    dist: BaseDistribution,
+    version_info: Tuple[int, int, int],
+    ignore_requires_python: bool = False,
+) -> None:
+    """
+    Check whether the given Python version is compatible with a distribution's
+    "Requires-Python" value.
+
+    :param version_info: A 3-tuple of ints representing the Python
+        major-minor-micro version to check.
+    :param ignore_requires_python: Whether to ignore the "Requires-Python"
+        value if the given Python version isn't compatible.
+
+    :raises UnsupportedPythonVersion: When the given Python version isn't
+        compatible.
+    """
+    # This idiosyncratically converts the SpecifierSet to str and let
+    # check_requires_python then parse it again into SpecifierSet. But this
+    # is the legacy resolver so I'm just not going to bother refactoring.
+    try:
+        requires_python = str(dist.requires_python)
+    except FileNotFoundError as e:
+        raise NoneMetadataError(dist, str(e))
+    try:
+        is_compatible = check_requires_python(
+            requires_python,
+            version_info=version_info,
+        )
+    except specifiers.InvalidSpecifier as exc:
+        logger.warning(
+            "Package %r has an invalid Requires-Python: %s", dist.raw_name, exc
+        )
+        return
+
+    if is_compatible:
+        return
+
+    version = ".".join(map(str, version_info))
+    if ignore_requires_python:
+        logger.debug(
+            "Ignoring failed Requires-Python check for package %r: %s not in %r",
+            dist.raw_name,
+            version,
+            requires_python,
+        )
+        return
+
+    raise UnsupportedPythonVersion(
+        "Package {!r} requires a different Python: {} not in {!r}".format(
+            dist.raw_name, version, requires_python
+        )
+    )
+
+
+class Resolver(BaseResolver):
+    """Resolves which packages need to be installed/uninstalled to perform \
+    the requested operation without breaking the requirements of any package.
+    """
+
+    _allowed_strategies = {"eager", "only-if-needed", "to-satisfy-only"}
+
+    def __init__(
+        self,
+        preparer: RequirementPreparer,
+        finder: PackageFinder,
+        wheel_cache: Optional[WheelCache],
+        make_install_req: InstallRequirementProvider,
+        use_user_site: bool,
+        ignore_dependencies: bool,
+        ignore_installed: bool,
+        ignore_requires_python: bool,
+        force_reinstall: bool,
+        upgrade_strategy: str,
+        py_version_info: Optional[Tuple[int, ...]] = None,
+    ) -> None:
+        super().__init__()
+        assert upgrade_strategy in self._allowed_strategies
+
+        if py_version_info is None:
+            py_version_info = sys.version_info[:3]
+        else:
+            py_version_info = normalize_version_info(py_version_info)
+
+        self._py_version_info = py_version_info
+
+        self.preparer = preparer
+        self.finder = finder
+        self.wheel_cache = wheel_cache
+
+        self.upgrade_strategy = upgrade_strategy
+        self.force_reinstall = force_reinstall
+        self.ignore_dependencies = ignore_dependencies
+        self.ignore_installed = ignore_installed
+        self.ignore_requires_python = ignore_requires_python
+        self.use_user_site = use_user_site
+        self._make_install_req = make_install_req
+
+        self._discovered_dependencies: DiscoveredDependencies = defaultdict(list)
+
+    def resolve(
+        self, root_reqs: List[InstallRequirement], check_supported_wheels: bool
+    ) -> RequirementSet:
+        """Resolve what operations need to be done
+
+        As a side-effect of this method, the packages (and their dependencies)
+        are downloaded, unpacked and prepared for installation. This
+        preparation is done by ``pip.operations.prepare``.
+
+        Once PyPI has static dependency metadata available, it would be
+        possible to move the preparation to become a step separated from
+        dependency resolution.
+        """
+        requirement_set = RequirementSet(check_supported_wheels=check_supported_wheels)
+        for req in root_reqs:
+            if req.constraint:
+                check_invalid_constraint_type(req)
+            requirement_set.add_requirement(req)
+
+        # Actually prepare the files, and collect any exceptions. Most hash
+        # exceptions cannot be checked ahead of time, because
+        # _populate_link() needs to be called before we can make decisions
+        # based on link type.
+        discovered_reqs: List[InstallRequirement] = []
+        hash_errors = HashErrors()
+        for req in chain(requirement_set.all_requirements, discovered_reqs):
+            try:
+                discovered_reqs.extend(self._resolve_one(requirement_set, req))
+            except HashError as exc:
+                exc.req = req
+                hash_errors.append(exc)
+
+        if hash_errors:
+            raise hash_errors
+
+        return requirement_set
+
+    def _is_upgrade_allowed(self, req: InstallRequirement) -> bool:
+        if self.upgrade_strategy == "to-satisfy-only":
+            return False
+        elif self.upgrade_strategy == "eager":
+            return True
+        else:
+            assert self.upgrade_strategy == "only-if-needed"
+            return req.user_supplied or req.constraint
+
+    def _set_req_to_reinstall(self, req: InstallRequirement) -> None:
+        """
+        Set a requirement to be installed.
+        """
+        # Don't uninstall the conflict if doing a user install and the
+        # conflict is not a user install.
+        if not self.use_user_site or dist_in_usersite(req.satisfied_by):
+            req.should_reinstall = True
+        req.satisfied_by = None
+
+    def _check_skip_installed(
+        self, req_to_install: InstallRequirement
+    ) -> Optional[str]:
+        """Check if req_to_install should be skipped.
+
+        This will check if the req is installed, and whether we should upgrade
+        or reinstall it, taking into account all the relevant user options.
+
+        After calling this req_to_install will only have satisfied_by set to
+        None if the req_to_install is to be upgraded/reinstalled etc. Any
+        other value will be a dist recording the current thing installed that
+        satisfies the requirement.
+
+        Note that for vcs urls and the like we can't assess skipping in this
+        routine - we simply identify that we need to pull the thing down,
+        then later on it is pulled down and introspected to assess upgrade/
+        reinstalls etc.
+
+        :return: A text reason for why it was skipped, or None.
+        """
+        if self.ignore_installed:
+            return None
+
+        req_to_install.check_if_exists(self.use_user_site)
+        if not req_to_install.satisfied_by:
+            return None
+
+        if self.force_reinstall:
+            self._set_req_to_reinstall(req_to_install)
+            return None
+
+        if not self._is_upgrade_allowed(req_to_install):
+            if self.upgrade_strategy == "only-if-needed":
+                return "already satisfied, skipping upgrade"
+            return "already satisfied"
+
+        # Check for the possibility of an upgrade.  For link-based
+        # requirements we have to pull the tree down and inspect to assess
+        # the version #, so it's handled way down.
+        if not req_to_install.link:
+            try:
+                self.finder.find_requirement(req_to_install, upgrade=True)
+            except BestVersionAlreadyInstalled:
+                # Then the best version is installed.
+                return "already up-to-date"
+            except DistributionNotFound:
+                # No distribution found, so we squash the error.  It will
+                # be raised later when we re-try later to do the install.
+                # Why don't we just raise here?
+                pass
+
+        self._set_req_to_reinstall(req_to_install)
+        return None
+
+    def _find_requirement_link(self, req: InstallRequirement) -> Optional[Link]:
+        upgrade = self._is_upgrade_allowed(req)
+        best_candidate = self.finder.find_requirement(req, upgrade)
+        if not best_candidate:
+            return None
+
+        # Log a warning per PEP 592 if necessary before returning.
+        link = best_candidate.link
+        if link.is_yanked:
+            reason = link.yanked_reason or ""
+            msg = (
+                # Mark this as a unicode string to prevent
+                # "UnicodeEncodeError: 'ascii' codec can't encode character"
+                # in Python 2 when the reason contains non-ascii characters.
+                "The candidate selected for download or install is a "
+                "yanked version: {candidate}\n"
+                "Reason for being yanked: {reason}"
+            ).format(candidate=best_candidate, reason=reason)
+            logger.warning(msg)
+
+        return link
+
+    def _populate_link(self, req: InstallRequirement) -> None:
+        """Ensure that if a link can be found for this, that it is found.
+
+        Note that req.link may still be None - if the requirement is already
+        installed and not needed to be upgraded based on the return value of
+        _is_upgrade_allowed().
+
+        If preparer.require_hashes is True, don't use the wheel cache, because
+        cached wheels, always built locally, have different hashes than the
+        files downloaded from the index server and thus throw false hash
+        mismatches. Furthermore, cached wheels at present have undeterministic
+        contents due to file modification times.
+        """
+        if req.link is None:
+            req.link = self._find_requirement_link(req)
+
+        if self.wheel_cache is None or self.preparer.require_hashes:
+            return
+        cache_entry = self.wheel_cache.get_cache_entry(
+            link=req.link,
+            package_name=req.name,
+            supported_tags=get_supported(),
+        )
+        if cache_entry is not None:
+            logger.debug("Using cached wheel link: %s", cache_entry.link)
+            if req.link is req.original_link and cache_entry.persistent:
+                req.original_link_is_in_wheel_cache = True
+            req.link = cache_entry.link
+
+    def _get_dist_for(self, req: InstallRequirement) -> BaseDistribution:
+        """Takes a InstallRequirement and returns a single AbstractDist \
+        representing a prepared variant of the same.
+        """
+        if req.editable:
+            return self.preparer.prepare_editable_requirement(req)
+
+        # satisfied_by is only evaluated by calling _check_skip_installed,
+        # so it must be None here.
+        assert req.satisfied_by is None
+        skip_reason = self._check_skip_installed(req)
+
+        if req.satisfied_by:
+            return self.preparer.prepare_installed_requirement(req, skip_reason)
+
+        # We eagerly populate the link, since that's our "legacy" behavior.
+        self._populate_link(req)
+        dist = self.preparer.prepare_linked_requirement(req)
+
+        # NOTE
+        # The following portion is for determining if a certain package is
+        # going to be re-installed/upgraded or not and reporting to the user.
+        # This should probably get cleaned up in a future refactor.
+
+        # req.req is only avail after unpack for URL
+        # pkgs repeat check_if_exists to uninstall-on-upgrade
+        # (#14)
+        if not self.ignore_installed:
+            req.check_if_exists(self.use_user_site)
+
+        if req.satisfied_by:
+            should_modify = (
+                self.upgrade_strategy != "to-satisfy-only"
+                or self.force_reinstall
+                or self.ignore_installed
+                or req.link.scheme == "file"
+            )
+            if should_modify:
+                self._set_req_to_reinstall(req)
+            else:
+                logger.info(
+                    "Requirement already satisfied (use --upgrade to upgrade): %s",
+                    req,
+                )
+        return dist
+
+    def _resolve_one(
+        self,
+        requirement_set: RequirementSet,
+        req_to_install: InstallRequirement,
+    ) -> List[InstallRequirement]:
+        """Prepare a single requirements file.
+
+        :return: A list of additional InstallRequirements to also install.
+        """
+        # Tell user what we are doing for this requirement:
+        # obtain (editable), skipping, processing (local url), collecting
+        # (remote url or package name)
+        if req_to_install.constraint or req_to_install.prepared:
+            return []
+
+        req_to_install.prepared = True
+
+        # Parse and return dependencies
+        dist = self._get_dist_for(req_to_install)
+        # This will raise UnsupportedPythonVersion if the given Python
+        # version isn't compatible with the distribution's Requires-Python.
+        _check_dist_requires_python(
+            dist,
+            version_info=self._py_version_info,
+            ignore_requires_python=self.ignore_requires_python,
+        )
+
+        more_reqs: List[InstallRequirement] = []
+
+        def add_req(subreq: Requirement, extras_requested: Iterable[str]) -> None:
+            # This idiosyncratically converts the Requirement to str and let
+            # make_install_req then parse it again into Requirement. But this is
+            # the legacy resolver so I'm just not going to bother refactoring.
+            sub_install_req = self._make_install_req(str(subreq), req_to_install)
+            parent_req_name = req_to_install.name
+            to_scan_again, add_to_parent = requirement_set.add_requirement(
+                sub_install_req,
+                parent_req_name=parent_req_name,
+                extras_requested=extras_requested,
+            )
+            if parent_req_name and add_to_parent:
+                self._discovered_dependencies[parent_req_name].append(add_to_parent)
+            more_reqs.extend(to_scan_again)
+
+        with indent_log():
+            # We add req_to_install before its dependencies, so that we
+            # can refer to it when adding dependencies.
+            if not requirement_set.has_requirement(req_to_install.name):
+                # 'unnamed' requirements will get added here
+                # 'unnamed' requirements can only come from being directly
+                # provided by the user.
+                assert req_to_install.user_supplied
+                requirement_set.add_requirement(req_to_install, parent_req_name=None)
+
+            if not self.ignore_dependencies:
+                if req_to_install.extras:
+                    logger.debug(
+                        "Installing extra requirements: %r",
+                        ",".join(req_to_install.extras),
+                    )
+                missing_requested = sorted(
+                    set(req_to_install.extras) - set(dist.iter_provided_extras())
+                )
+                for missing in missing_requested:
+                    logger.warning(
+                        "%s %s does not provide the extra '%s'",
+                        dist.raw_name,
+                        dist.version,
+                        missing,
+                    )
+
+                available_requested = sorted(
+                    set(dist.iter_provided_extras()) & set(req_to_install.extras)
+                )
+                for subreq in dist.iter_dependencies(available_requested):
+                    add_req(subreq, extras_requested=available_requested)
+
+        return more_reqs
+
+    def get_installation_order(
+        self, req_set: RequirementSet
+    ) -> List[InstallRequirement]:
+        """Create the installation order.
+
+        The installation order is topological - requirements are installed
+        before the requiring thing. We break cycles at an arbitrary point,
+        and make no other guarantees.
+        """
+        # The current implementation, which we may change at any point
+        # installs the user specified things in the order given, except when
+        # dependencies must come earlier to achieve topological order.
+        order = []
+        ordered_reqs: Set[InstallRequirement] = set()
+
+        def schedule(req: InstallRequirement) -> None:
+            if req.satisfied_by or req in ordered_reqs:
+                return
+            if req.constraint:
+                return
+            ordered_reqs.add(req)
+            for dep in self._discovered_dependencies[req.name]:
+                schedule(dep)
+            order.append(req)
+
+        for install_req in req_set.requirements.values():
+            schedule(install_req)
+        return order
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/base.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/base.py
new file mode 100644
index 0000000..b206692
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/base.py
@@ -0,0 +1,141 @@
+from typing import FrozenSet, Iterable, Optional, Tuple, Union
+
+from pip._vendor.packaging.specifiers import SpecifierSet
+from pip._vendor.packaging.utils import NormalizedName, canonicalize_name
+from pip._vendor.packaging.version import LegacyVersion, Version
+
+from pip._internal.models.link import Link, links_equivalent
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.utils.hashes import Hashes
+
+CandidateLookup = Tuple[Optional["Candidate"], Optional[InstallRequirement]]
+CandidateVersion = Union[LegacyVersion, Version]
+
+
+def format_name(project: str, extras: FrozenSet[str]) -> str:
+    if not extras:
+        return project
+    canonical_extras = sorted(canonicalize_name(e) for e in extras)
+    return "{}[{}]".format(project, ",".join(canonical_extras))
+
+
+class Constraint:
+    def __init__(
+        self, specifier: SpecifierSet, hashes: Hashes, links: FrozenSet[Link]
+    ) -> None:
+        self.specifier = specifier
+        self.hashes = hashes
+        self.links = links
+
+    @classmethod
+    def empty(cls) -> "Constraint":
+        return Constraint(SpecifierSet(), Hashes(), frozenset())
+
+    @classmethod
+    def from_ireq(cls, ireq: InstallRequirement) -> "Constraint":
+        links = frozenset([ireq.link]) if ireq.link else frozenset()
+        return Constraint(ireq.specifier, ireq.hashes(trust_internet=False), links)
+
+    def __bool__(self) -> bool:
+        return bool(self.specifier) or bool(self.hashes) or bool(self.links)
+
+    def __and__(self, other: InstallRequirement) -> "Constraint":
+        if not isinstance(other, InstallRequirement):
+            return NotImplemented
+        specifier = self.specifier & other.specifier
+        hashes = self.hashes & other.hashes(trust_internet=False)
+        links = self.links
+        if other.link:
+            links = links.union([other.link])
+        return Constraint(specifier, hashes, links)
+
+    def is_satisfied_by(self, candidate: "Candidate") -> bool:
+        # Reject if there are any mismatched URL constraints on this package.
+        if self.links and not all(_match_link(link, candidate) for link in self.links):
+            return False
+        # We can safely always allow prereleases here since PackageFinder
+        # already implements the prerelease logic, and would have filtered out
+        # prerelease candidates if the user does not expect them.
+        return self.specifier.contains(candidate.version, prereleases=True)
+
+
+class Requirement:
+    @property
+    def project_name(self) -> NormalizedName:
+        """The "project name" of a requirement.
+
+        This is different from ``name`` if this requirement contains extras,
+        in which case ``name`` would contain the ``[...]`` part, while this
+        refers to the name of the project.
+        """
+        raise NotImplementedError("Subclass should override")
+
+    @property
+    def name(self) -> str:
+        """The name identifying this requirement in the resolver.
+
+        This is different from ``project_name`` if this requirement contains
+        extras, where ``project_name`` would not contain the ``[...]`` part.
+        """
+        raise NotImplementedError("Subclass should override")
+
+    def is_satisfied_by(self, candidate: "Candidate") -> bool:
+        return False
+
+    def get_candidate_lookup(self) -> CandidateLookup:
+        raise NotImplementedError("Subclass should override")
+
+    def format_for_error(self) -> str:
+        raise NotImplementedError("Subclass should override")
+
+
+def _match_link(link: Link, candidate: "Candidate") -> bool:
+    if candidate.source_link:
+        return links_equivalent(link, candidate.source_link)
+    return False
+
+
+class Candidate:
+    @property
+    def project_name(self) -> NormalizedName:
+        """The "project name" of the candidate.
+
+        This is different from ``name`` if this candidate contains extras,
+        in which case ``name`` would contain the ``[...]`` part, while this
+        refers to the name of the project.
+        """
+        raise NotImplementedError("Override in subclass")
+
+    @property
+    def name(self) -> str:
+        """The name identifying this candidate in the resolver.
+
+        This is different from ``project_name`` if this candidate contains
+        extras, where ``project_name`` would not contain the ``[...]`` part.
+        """
+        raise NotImplementedError("Override in subclass")
+
+    @property
+    def version(self) -> CandidateVersion:
+        raise NotImplementedError("Override in subclass")
+
+    @property
+    def is_installed(self) -> bool:
+        raise NotImplementedError("Override in subclass")
+
+    @property
+    def is_editable(self) -> bool:
+        raise NotImplementedError("Override in subclass")
+
+    @property
+    def source_link(self) -> Optional[Link]:
+        raise NotImplementedError("Override in subclass")
+
+    def iter_dependencies(self, with_requires: bool) -> Iterable[Optional[Requirement]]:
+        raise NotImplementedError("Override in subclass")
+
+    def get_install_requirement(self) -> Optional[InstallRequirement]:
+        raise NotImplementedError("Override in subclass")
+
+    def format_for_error(self) -> str:
+        raise NotImplementedError("Subclass should override")
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/candidates.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/candidates.py
new file mode 100644
index 0000000..60fad55
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/candidates.py
@@ -0,0 +1,540 @@
+import logging
+import sys
+from typing import TYPE_CHECKING, Any, FrozenSet, Iterable, Optional, Tuple, Union, cast
+
+from pip._vendor.packaging.utils import NormalizedName, canonicalize_name
+from pip._vendor.packaging.version import Version
+
+from pip._internal.exceptions import HashError, MetadataInconsistent
+from pip._internal.metadata import BaseDistribution
+from pip._internal.models.link import Link, links_equivalent
+from pip._internal.models.wheel import Wheel
+from pip._internal.req.constructors import (
+    install_req_from_editable,
+    install_req_from_line,
+)
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.utils.misc import normalize_version_info
+
+from .base import Candidate, CandidateVersion, Requirement, format_name
+
+if TYPE_CHECKING:
+    from .factory import Factory
+
+logger = logging.getLogger(__name__)
+
+BaseCandidate = Union[
+    "AlreadyInstalledCandidate",
+    "EditableCandidate",
+    "LinkCandidate",
+]
+
+# Avoid conflicting with the PyPI package "Python".
+REQUIRES_PYTHON_IDENTIFIER = cast(NormalizedName, "")
+
+
+def as_base_candidate(candidate: Candidate) -> Optional[BaseCandidate]:
+    """The runtime version of BaseCandidate."""
+    base_candidate_classes = (
+        AlreadyInstalledCandidate,
+        EditableCandidate,
+        LinkCandidate,
+    )
+    if isinstance(candidate, base_candidate_classes):
+        return candidate
+    return None
+
+
+def make_install_req_from_link(
+    link: Link, template: InstallRequirement
+) -> InstallRequirement:
+    assert not template.editable, "template is editable"
+    if template.req:
+        line = str(template.req)
+    else:
+        line = link.url
+    ireq = install_req_from_line(
+        line,
+        user_supplied=template.user_supplied,
+        comes_from=template.comes_from,
+        use_pep517=template.use_pep517,
+        isolated=template.isolated,
+        constraint=template.constraint,
+        options=dict(
+            install_options=template.install_options,
+            global_options=template.global_options,
+            hashes=template.hash_options,
+        ),
+    )
+    ireq.original_link = template.original_link
+    ireq.link = link
+    return ireq
+
+
+def make_install_req_from_editable(
+    link: Link, template: InstallRequirement
+) -> InstallRequirement:
+    assert template.editable, "template not editable"
+    return install_req_from_editable(
+        link.url,
+        user_supplied=template.user_supplied,
+        comes_from=template.comes_from,
+        use_pep517=template.use_pep517,
+        isolated=template.isolated,
+        constraint=template.constraint,
+        permit_editable_wheels=template.permit_editable_wheels,
+        options=dict(
+            install_options=template.install_options,
+            global_options=template.global_options,
+            hashes=template.hash_options,
+        ),
+    )
+
+
+def _make_install_req_from_dist(
+    dist: BaseDistribution, template: InstallRequirement
+) -> InstallRequirement:
+    from pip._internal.metadata.pkg_resources import Distribution as _Dist
+
+    if template.req:
+        line = str(template.req)
+    elif template.link:
+        line = f"{dist.canonical_name} @ {template.link.url}"
+    else:
+        line = f"{dist.canonical_name}=={dist.version}"
+    ireq = install_req_from_line(
+        line,
+        user_supplied=template.user_supplied,
+        comes_from=template.comes_from,
+        use_pep517=template.use_pep517,
+        isolated=template.isolated,
+        constraint=template.constraint,
+        options=dict(
+            install_options=template.install_options,
+            global_options=template.global_options,
+            hashes=template.hash_options,
+        ),
+    )
+    ireq.satisfied_by = cast(_Dist, dist)._dist
+    return ireq
+
+
+class _InstallRequirementBackedCandidate(Candidate):
+    """A candidate backed by an ``InstallRequirement``.
+
+    This represents a package request with the target not being already
+    in the environment, and needs to be fetched and installed. The backing
+    ``InstallRequirement`` is responsible for most of the leg work; this
+    class exposes appropriate information to the resolver.
+
+    :param link: The link passed to the ``InstallRequirement``. The backing
+        ``InstallRequirement`` will use this link to fetch the distribution.
+    :param source_link: The link this candidate "originates" from. This is
+        different from ``link`` when the link is found in the wheel cache.
+        ``link`` would point to the wheel cache, while this points to the
+        found remote link (e.g. from pypi.org).
+    """
+
+    dist: BaseDistribution
+    is_installed = False
+
+    def __init__(
+        self,
+        link: Link,
+        source_link: Link,
+        ireq: InstallRequirement,
+        factory: "Factory",
+        name: Optional[NormalizedName] = None,
+        version: Optional[CandidateVersion] = None,
+    ) -> None:
+        self._link = link
+        self._source_link = source_link
+        self._factory = factory
+        self._ireq = ireq
+        self._name = name
+        self._version = version
+        self.dist = self._prepare()
+
+    def __str__(self) -> str:
+        return f"{self.name} {self.version}"
+
+    def __repr__(self) -> str:
+        return "{class_name}({link!r})".format(
+            class_name=self.__class__.__name__,
+            link=str(self._link),
+        )
+
+    def __hash__(self) -> int:
+        return hash((self.__class__, self._link))
+
+    def __eq__(self, other: Any) -> bool:
+        if isinstance(other, self.__class__):
+            return links_equivalent(self._link, other._link)
+        return False
+
+    @property
+    def source_link(self) -> Optional[Link]:
+        return self._source_link
+
+    @property
+    def project_name(self) -> NormalizedName:
+        """The normalised name of the project the candidate refers to"""
+        if self._name is None:
+            self._name = self.dist.canonical_name
+        return self._name
+
+    @property
+    def name(self) -> str:
+        return self.project_name
+
+    @property
+    def version(self) -> CandidateVersion:
+        if self._version is None:
+            self._version = self.dist.version
+        return self._version
+
+    def format_for_error(self) -> str:
+        return "{} {} (from {})".format(
+            self.name,
+            self.version,
+            self._link.file_path if self._link.is_file else self._link,
+        )
+
+    def _prepare_distribution(self) -> BaseDistribution:
+        raise NotImplementedError("Override in subclass")
+
+    def _check_metadata_consistency(self, dist: BaseDistribution) -> None:
+        """Check for consistency of project name and version of dist."""
+        if self._name is not None and self._name != dist.canonical_name:
+            raise MetadataInconsistent(
+                self._ireq,
+                "name",
+                self._name,
+                dist.canonical_name,
+            )
+        if self._version is not None and self._version != dist.version:
+            raise MetadataInconsistent(
+                self._ireq,
+                "version",
+                str(self._version),
+                str(dist.version),
+            )
+
+    def _prepare(self) -> BaseDistribution:
+        try:
+            dist = self._prepare_distribution()
+        except HashError as e:
+            # Provide HashError the underlying ireq that caused it. This
+            # provides context for the resulting error message to show the
+            # offending line to the user.
+            e.req = self._ireq
+            raise
+        self._check_metadata_consistency(dist)
+        return dist
+
+    def iter_dependencies(self, with_requires: bool) -> Iterable[Optional[Requirement]]:
+        requires = self.dist.iter_dependencies() if with_requires else ()
+        for r in requires:
+            yield self._factory.make_requirement_from_spec(str(r), self._ireq)
+        yield self._factory.make_requires_python_requirement(self.dist.requires_python)
+
+    def get_install_requirement(self) -> Optional[InstallRequirement]:
+        return self._ireq
+
+
+class LinkCandidate(_InstallRequirementBackedCandidate):
+    is_editable = False
+
+    def __init__(
+        self,
+        link: Link,
+        template: InstallRequirement,
+        factory: "Factory",
+        name: Optional[NormalizedName] = None,
+        version: Optional[CandidateVersion] = None,
+    ) -> None:
+        source_link = link
+        cache_entry = factory.get_wheel_cache_entry(link, name)
+        if cache_entry is not None:
+            logger.debug("Using cached wheel link: %s", cache_entry.link)
+            link = cache_entry.link
+        ireq = make_install_req_from_link(link, template)
+        assert ireq.link == link
+        if ireq.link.is_wheel and not ireq.link.is_file:
+            wheel = Wheel(ireq.link.filename)
+            wheel_name = canonicalize_name(wheel.name)
+            assert name == wheel_name, f"{name!r} != {wheel_name!r} for wheel"
+            # Version may not be present for PEP 508 direct URLs
+            if version is not None:
+                wheel_version = Version(wheel.version)
+                assert version == wheel_version, "{!r} != {!r} for wheel {}".format(
+                    version, wheel_version, name
+                )
+
+        if (
+            cache_entry is not None
+            and cache_entry.persistent
+            and template.link is template.original_link
+        ):
+            ireq.original_link_is_in_wheel_cache = True
+
+        super().__init__(
+            link=link,
+            source_link=source_link,
+            ireq=ireq,
+            factory=factory,
+            name=name,
+            version=version,
+        )
+
+    def _prepare_distribution(self) -> BaseDistribution:
+        preparer = self._factory.preparer
+        return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
+
+
+class EditableCandidate(_InstallRequirementBackedCandidate):
+    is_editable = True
+
+    def __init__(
+        self,
+        link: Link,
+        template: InstallRequirement,
+        factory: "Factory",
+        name: Optional[NormalizedName] = None,
+        version: Optional[CandidateVersion] = None,
+    ) -> None:
+        super().__init__(
+            link=link,
+            source_link=link,
+            ireq=make_install_req_from_editable(link, template),
+            factory=factory,
+            name=name,
+            version=version,
+        )
+
+    def _prepare_distribution(self) -> BaseDistribution:
+        return self._factory.preparer.prepare_editable_requirement(self._ireq)
+
+
+class AlreadyInstalledCandidate(Candidate):
+    is_installed = True
+    source_link = None
+
+    def __init__(
+        self,
+        dist: BaseDistribution,
+        template: InstallRequirement,
+        factory: "Factory",
+    ) -> None:
+        self.dist = dist
+        self._ireq = _make_install_req_from_dist(dist, template)
+        self._factory = factory
+
+        # This is just logging some messages, so we can do it eagerly.
+        # The returned dist would be exactly the same as self.dist because we
+        # set satisfied_by in _make_install_req_from_dist.
+        # TODO: Supply reason based on force_reinstall and upgrade_strategy.
+        skip_reason = "already satisfied"
+        factory.preparer.prepare_installed_requirement(self._ireq, skip_reason)
+
+    def __str__(self) -> str:
+        return str(self.dist)
+
+    def __repr__(self) -> str:
+        return "{class_name}({distribution!r})".format(
+            class_name=self.__class__.__name__,
+            distribution=self.dist,
+        )
+
+    def __hash__(self) -> int:
+        return hash((self.__class__, self.name, self.version))
+
+    def __eq__(self, other: Any) -> bool:
+        if isinstance(other, self.__class__):
+            return self.name == other.name and self.version == other.version
+        return False
+
+    @property
+    def project_name(self) -> NormalizedName:
+        return self.dist.canonical_name
+
+    @property
+    def name(self) -> str:
+        return self.project_name
+
+    @property
+    def version(self) -> CandidateVersion:
+        return self.dist.version
+
+    @property
+    def is_editable(self) -> bool:
+        return self.dist.editable
+
+    def format_for_error(self) -> str:
+        return f"{self.name} {self.version} (Installed)"
+
+    def iter_dependencies(self, with_requires: bool) -> Iterable[Optional[Requirement]]:
+        if not with_requires:
+            return
+        for r in self.dist.iter_dependencies():
+            yield self._factory.make_requirement_from_spec(str(r), self._ireq)
+
+    def get_install_requirement(self) -> Optional[InstallRequirement]:
+        return None
+
+
+class ExtrasCandidate(Candidate):
+    """A candidate that has 'extras', indicating additional dependencies.
+
+    Requirements can be for a project with dependencies, something like
+    foo[extra].  The extras don't affect the project/version being installed
+    directly, but indicate that we need additional dependencies. We model that
+    by having an artificial ExtrasCandidate that wraps the "base" candidate.
+
+    The ExtrasCandidate differs from the base in the following ways:
+
+    1. It has a unique name, of the form foo[extra]. This causes the resolver
+       to treat it as a separate node in the dependency graph.
+    2. When we're getting the candidate's dependencies,
+       a) We specify that we want the extra dependencies as well.
+       b) We add a dependency on the base candidate.
+          See below for why this is needed.
+    3. We return None for the underlying InstallRequirement, as the base
+       candidate will provide it, and we don't want to end up with duplicates.
+
+    The dependency on the base candidate is needed so that the resolver can't
+    decide that it should recommend foo[extra1] version 1.0 and foo[extra2]
+    version 2.0. Having those candidates depend on foo=1.0 and foo=2.0
+    respectively forces the resolver to recognise that this is a conflict.
+    """
+
+    def __init__(
+        self,
+        base: BaseCandidate,
+        extras: FrozenSet[str],
+    ) -> None:
+        self.base = base
+        self.extras = extras
+
+    def __str__(self) -> str:
+        name, rest = str(self.base).split(" ", 1)
+        return "{}[{}] {}".format(name, ",".join(self.extras), rest)
+
+    def __repr__(self) -> str:
+        return "{class_name}(base={base!r}, extras={extras!r})".format(
+            class_name=self.__class__.__name__,
+            base=self.base,
+            extras=self.extras,
+        )
+
+    def __hash__(self) -> int:
+        return hash((self.base, self.extras))
+
+    def __eq__(self, other: Any) -> bool:
+        if isinstance(other, self.__class__):
+            return self.base == other.base and self.extras == other.extras
+        return False
+
+    @property
+    def project_name(self) -> NormalizedName:
+        return self.base.project_name
+
+    @property
+    def name(self) -> str:
+        """The normalised name of the project the candidate refers to"""
+        return format_name(self.base.project_name, self.extras)
+
+    @property
+    def version(self) -> CandidateVersion:
+        return self.base.version
+
+    def format_for_error(self) -> str:
+        return "{} [{}]".format(
+            self.base.format_for_error(), ", ".join(sorted(self.extras))
+        )
+
+    @property
+    def is_installed(self) -> bool:
+        return self.base.is_installed
+
+    @property
+    def is_editable(self) -> bool:
+        return self.base.is_editable
+
+    @property
+    def source_link(self) -> Optional[Link]:
+        return self.base.source_link
+
+    def iter_dependencies(self, with_requires: bool) -> Iterable[Optional[Requirement]]:
+        factory = self.base._factory
+
+        # Add a dependency on the exact base
+        # (See note 2b in the class docstring)
+        yield factory.make_requirement_from_candidate(self.base)
+        if not with_requires:
+            return
+
+        # The user may have specified extras that the candidate doesn't
+        # support. We ignore any unsupported extras here.
+        valid_extras = self.extras.intersection(self.base.dist.iter_provided_extras())
+        invalid_extras = self.extras.difference(self.base.dist.iter_provided_extras())
+        for extra in sorted(invalid_extras):
+            logger.warning(
+                "%s %s does not provide the extra '%s'",
+                self.base.name,
+                self.version,
+                extra,
+            )
+
+        for r in self.base.dist.iter_dependencies(valid_extras):
+            requirement = factory.make_requirement_from_spec(
+                str(r), self.base._ireq, valid_extras
+            )
+            if requirement:
+                yield requirement
+
+    def get_install_requirement(self) -> Optional[InstallRequirement]:
+        # We don't return anything here, because we always
+        # depend on the base candidate, and we'll get the
+        # install requirement from that.
+        return None
+
+
+class RequiresPythonCandidate(Candidate):
+    is_installed = False
+    source_link = None
+
+    def __init__(self, py_version_info: Optional[Tuple[int, ...]]) -> None:
+        if py_version_info is not None:
+            version_info = normalize_version_info(py_version_info)
+        else:
+            version_info = sys.version_info[:3]
+        self._version = Version(".".join(str(c) for c in version_info))
+
+    # We don't need to implement __eq__() and __ne__() since there is always
+    # only one RequiresPythonCandidate in a resolution, i.e. the host Python.
+    # The built-in object.__eq__() and object.__ne__() do exactly what we want.
+
+    def __str__(self) -> str:
+        return f"Python {self._version}"
+
+    @property
+    def project_name(self) -> NormalizedName:
+        return REQUIRES_PYTHON_IDENTIFIER
+
+    @property
+    def name(self) -> str:
+        return REQUIRES_PYTHON_IDENTIFIER
+
+    @property
+    def version(self) -> CandidateVersion:
+        return self._version
+
+    def format_for_error(self) -> str:
+        return f"Python {self.version}"
+
+    def iter_dependencies(self, with_requires: bool) -> Iterable[Optional[Requirement]]:
+        return ()
+
+    def get_install_requirement(self) -> Optional[InstallRequirement]:
+        return None
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/factory.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/factory.py
new file mode 100644
index 0000000..766dc26
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/factory.py
@@ -0,0 +1,701 @@
+import contextlib
+import functools
+import logging
+from typing import (
+    TYPE_CHECKING,
+    Dict,
+    FrozenSet,
+    Iterable,
+    Iterator,
+    List,
+    Mapping,
+    NamedTuple,
+    Optional,
+    Sequence,
+    Set,
+    Tuple,
+    TypeVar,
+    cast,
+)
+
+from pip._vendor.packaging.requirements import InvalidRequirement
+from pip._vendor.packaging.specifiers import SpecifierSet
+from pip._vendor.packaging.utils import NormalizedName, canonicalize_name
+from pip._vendor.resolvelib import ResolutionImpossible
+
+from pip._internal.cache import CacheEntry, WheelCache
+from pip._internal.exceptions import (
+    DistributionNotFound,
+    InstallationError,
+    InstallationSubprocessError,
+    MetadataInconsistent,
+    UnsupportedPythonVersion,
+    UnsupportedWheel,
+)
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.metadata import BaseDistribution, get_default_environment
+from pip._internal.models.link import Link
+from pip._internal.models.wheel import Wheel
+from pip._internal.operations.prepare import RequirementPreparer
+from pip._internal.req.constructors import install_req_from_link_and_ireq
+from pip._internal.req.req_install import (
+    InstallRequirement,
+    check_invalid_constraint_type,
+)
+from pip._internal.resolution.base import InstallRequirementProvider
+from pip._internal.utils.compatibility_tags import get_supported
+from pip._internal.utils.hashes import Hashes
+from pip._internal.utils.packaging import get_requirement
+from pip._internal.utils.virtualenv import running_under_virtualenv
+
+from .base import Candidate, CandidateVersion, Constraint, Requirement
+from .candidates import (
+    AlreadyInstalledCandidate,
+    BaseCandidate,
+    EditableCandidate,
+    ExtrasCandidate,
+    LinkCandidate,
+    RequiresPythonCandidate,
+    as_base_candidate,
+)
+from .found_candidates import FoundCandidates, IndexCandidateInfo
+from .requirements import (
+    ExplicitRequirement,
+    RequiresPythonRequirement,
+    SpecifierRequirement,
+    UnsatisfiableRequirement,
+)
+
+if TYPE_CHECKING:
+    from typing import Protocol
+
+    class ConflictCause(Protocol):
+        requirement: RequiresPythonRequirement
+        parent: Candidate
+
+
+logger = logging.getLogger(__name__)
+
+C = TypeVar("C")
+Cache = Dict[Link, C]
+
+
+class CollectedRootRequirements(NamedTuple):
+    requirements: List[Requirement]
+    constraints: Dict[str, Constraint]
+    user_requested: Dict[str, int]
+
+
+class Factory:
+    def __init__(
+        self,
+        finder: PackageFinder,
+        preparer: RequirementPreparer,
+        make_install_req: InstallRequirementProvider,
+        wheel_cache: Optional[WheelCache],
+        use_user_site: bool,
+        force_reinstall: bool,
+        ignore_installed: bool,
+        ignore_requires_python: bool,
+        py_version_info: Optional[Tuple[int, ...]] = None,
+    ) -> None:
+        self._finder = finder
+        self.preparer = preparer
+        self._wheel_cache = wheel_cache
+        self._python_candidate = RequiresPythonCandidate(py_version_info)
+        self._make_install_req_from_spec = make_install_req
+        self._use_user_site = use_user_site
+        self._force_reinstall = force_reinstall
+        self._ignore_requires_python = ignore_requires_python
+
+        self._build_failures: Cache[InstallationError] = {}
+        self._link_candidate_cache: Cache[LinkCandidate] = {}
+        self._editable_candidate_cache: Cache[EditableCandidate] = {}
+        self._installed_candidate_cache: Dict[str, AlreadyInstalledCandidate] = {}
+        self._extras_candidate_cache: Dict[
+            Tuple[int, FrozenSet[str]], ExtrasCandidate
+        ] = {}
+
+        if not ignore_installed:
+            env = get_default_environment()
+            self._installed_dists = {
+                dist.canonical_name: dist
+                for dist in env.iter_installed_distributions(local_only=False)
+            }
+        else:
+            self._installed_dists = {}
+
+    @property
+    def force_reinstall(self) -> bool:
+        return self._force_reinstall
+
+    def _fail_if_link_is_unsupported_wheel(self, link: Link) -> None:
+        if not link.is_wheel:
+            return
+        wheel = Wheel(link.filename)
+        if wheel.supported(self._finder.target_python.get_tags()):
+            return
+        msg = f"{link.filename} is not a supported wheel on this platform."
+        raise UnsupportedWheel(msg)
+
+    def _make_extras_candidate(
+        self, base: BaseCandidate, extras: FrozenSet[str]
+    ) -> ExtrasCandidate:
+        cache_key = (id(base), extras)
+        try:
+            candidate = self._extras_candidate_cache[cache_key]
+        except KeyError:
+            candidate = ExtrasCandidate(base, extras)
+            self._extras_candidate_cache[cache_key] = candidate
+        return candidate
+
+    def _make_candidate_from_dist(
+        self,
+        dist: BaseDistribution,
+        extras: FrozenSet[str],
+        template: InstallRequirement,
+    ) -> Candidate:
+        try:
+            base = self._installed_candidate_cache[dist.canonical_name]
+        except KeyError:
+            base = AlreadyInstalledCandidate(dist, template, factory=self)
+            self._installed_candidate_cache[dist.canonical_name] = base
+        if not extras:
+            return base
+        return self._make_extras_candidate(base, extras)
+
+    def _make_candidate_from_link(
+        self,
+        link: Link,
+        extras: FrozenSet[str],
+        template: InstallRequirement,
+        name: Optional[NormalizedName],
+        version: Optional[CandidateVersion],
+    ) -> Optional[Candidate]:
+        # TODO: Check already installed candidate, and use it if the link and
+        # editable flag match.
+
+        if link in self._build_failures:
+            # We already tried this candidate before, and it does not build.
+            # Don't bother trying again.
+            return None
+
+        if template.editable:
+            if link not in self._editable_candidate_cache:
+                try:
+                    self._editable_candidate_cache[link] = EditableCandidate(
+                        link,
+                        template,
+                        factory=self,
+                        name=name,
+                        version=version,
+                    )
+                except (InstallationSubprocessError, MetadataInconsistent) as e:
+                    logger.warning("Discarding %s. %s", link, e)
+                    self._build_failures[link] = e
+                    return None
+            base: BaseCandidate = self._editable_candidate_cache[link]
+        else:
+            if link not in self._link_candidate_cache:
+                try:
+                    self._link_candidate_cache[link] = LinkCandidate(
+                        link,
+                        template,
+                        factory=self,
+                        name=name,
+                        version=version,
+                    )
+                except (InstallationSubprocessError, MetadataInconsistent) as e:
+                    logger.warning("Discarding %s. %s", link, e)
+                    self._build_failures[link] = e
+                    return None
+            base = self._link_candidate_cache[link]
+
+        if not extras:
+            return base
+        return self._make_extras_candidate(base, extras)
+
+    def _iter_found_candidates(
+        self,
+        ireqs: Sequence[InstallRequirement],
+        specifier: SpecifierSet,
+        hashes: Hashes,
+        prefers_installed: bool,
+        incompatible_ids: Set[int],
+    ) -> Iterable[Candidate]:
+        if not ireqs:
+            return ()
+
+        # The InstallRequirement implementation requires us to give it a
+        # "template". Here we just choose the first requirement to represent
+        # all of them.
+        # Hopefully the Project model can correct this mismatch in the future.
+        template = ireqs[0]
+        assert template.req, "Candidates found on index must be PEP 508"
+        name = canonicalize_name(template.req.name)
+
+        extras: FrozenSet[str] = frozenset()
+        for ireq in ireqs:
+            assert ireq.req, "Candidates found on index must be PEP 508"
+            specifier &= ireq.req.specifier
+            hashes &= ireq.hashes(trust_internet=False)
+            extras |= frozenset(ireq.extras)
+
+        def _get_installed_candidate() -> Optional[Candidate]:
+            """Get the candidate for the currently-installed version."""
+            # If --force-reinstall is set, we want the version from the index
+            # instead, so we "pretend" there is nothing installed.
+            if self._force_reinstall:
+                return None
+            try:
+                installed_dist = self._installed_dists[name]
+            except KeyError:
+                return None
+            # Don't use the installed distribution if its version does not fit
+            # the current dependency graph.
+            if not specifier.contains(installed_dist.version, prereleases=True):
+                return None
+            candidate = self._make_candidate_from_dist(
+                dist=installed_dist,
+                extras=extras,
+                template=template,
+            )
+            # The candidate is a known incompatiblity. Don't use it.
+            if id(candidate) in incompatible_ids:
+                return None
+            return candidate
+
+        def iter_index_candidate_infos() -> Iterator[IndexCandidateInfo]:
+            result = self._finder.find_best_candidate(
+                project_name=name,
+                specifier=specifier,
+                hashes=hashes,
+            )
+            icans = list(result.iter_applicable())
+
+            # PEP 592: Yanked releases must be ignored unless only yanked
+            # releases can satisfy the version range. So if this is false,
+            # all yanked icans need to be skipped.
+            all_yanked = all(ican.link.is_yanked for ican in icans)
+
+            # PackageFinder returns earlier versions first, so we reverse.
+            for ican in reversed(icans):
+                if not all_yanked and ican.link.is_yanked:
+                    continue
+                func = functools.partial(
+                    self._make_candidate_from_link,
+                    link=ican.link,
+                    extras=extras,
+                    template=template,
+                    name=name,
+                    version=ican.version,
+                )
+                yield ican.version, func
+
+        return FoundCandidates(
+            iter_index_candidate_infos,
+            _get_installed_candidate(),
+            prefers_installed,
+            incompatible_ids,
+        )
+
+    def _iter_explicit_candidates_from_base(
+        self,
+        base_requirements: Iterable[Requirement],
+        extras: FrozenSet[str],
+    ) -> Iterator[Candidate]:
+        """Produce explicit candidates from the base given an extra-ed package.
+
+        :param base_requirements: Requirements known to the resolver. The
+            requirements are guaranteed to not have extras.
+        :param extras: The extras to inject into the explicit requirements'
+            candidates.
+        """
+        for req in base_requirements:
+            lookup_cand, _ = req.get_candidate_lookup()
+            if lookup_cand is None:  # Not explicit.
+                continue
+            # We've stripped extras from the identifier, and should always
+            # get a BaseCandidate here, unless there's a bug elsewhere.
+            base_cand = as_base_candidate(lookup_cand)
+            assert base_cand is not None, "no extras here"
+            yield self._make_extras_candidate(base_cand, extras)
+
+    def _iter_candidates_from_constraints(
+        self,
+        identifier: str,
+        constraint: Constraint,
+        template: InstallRequirement,
+    ) -> Iterator[Candidate]:
+        """Produce explicit candidates from constraints.
+
+        This creates "fake" InstallRequirement objects that are basically clones
+        of what "should" be the template, but with original_link set to link.
+        """
+        for link in constraint.links:
+            self._fail_if_link_is_unsupported_wheel(link)
+            candidate = self._make_candidate_from_link(
+                link,
+                extras=frozenset(),
+                template=install_req_from_link_and_ireq(link, template),
+                name=canonicalize_name(identifier),
+                version=None,
+            )
+            if candidate:
+                yield candidate
+
+    def find_candidates(
+        self,
+        identifier: str,
+        requirements: Mapping[str, Iterable[Requirement]],
+        incompatibilities: Mapping[str, Iterator[Candidate]],
+        constraint: Constraint,
+        prefers_installed: bool,
+    ) -> Iterable[Candidate]:
+        # Collect basic lookup information from the requirements.
+        explicit_candidates: Set[Candidate] = set()
+        ireqs: List[InstallRequirement] = []
+        for req in requirements[identifier]:
+            cand, ireq = req.get_candidate_lookup()
+            if cand is not None:
+                explicit_candidates.add(cand)
+            if ireq is not None:
+                ireqs.append(ireq)
+
+        # If the current identifier contains extras, add explicit candidates
+        # from entries from extra-less identifier.
+        with contextlib.suppress(InvalidRequirement):
+            parsed_requirement = get_requirement(identifier)
+            explicit_candidates.update(
+                self._iter_explicit_candidates_from_base(
+                    requirements.get(parsed_requirement.name, ()),
+                    frozenset(parsed_requirement.extras),
+                ),
+            )
+
+        # Add explicit candidates from constraints. We only do this if there are
+        # kown ireqs, which represent requirements not already explicit. If
+        # there are no ireqs, we're constraining already-explicit requirements,
+        # which is handled later when we return the explicit candidates.
+        if ireqs:
+            try:
+                explicit_candidates.update(
+                    self._iter_candidates_from_constraints(
+                        identifier,
+                        constraint,
+                        template=ireqs[0],
+                    ),
+                )
+            except UnsupportedWheel:
+                # If we're constrained to install a wheel incompatible with the
+                # target architecture, no candidates will ever be valid.
+                return ()
+
+        # Since we cache all the candidates, incompatibility identification
+        # can be made quicker by comparing only the id() values.
+        incompat_ids = {id(c) for c in incompatibilities.get(identifier, ())}
+
+        # If none of the requirements want an explicit candidate, we can ask
+        # the finder for candidates.
+        if not explicit_candidates:
+            return self._iter_found_candidates(
+                ireqs,
+                constraint.specifier,
+                constraint.hashes,
+                prefers_installed,
+                incompat_ids,
+            )
+
+        return (
+            c
+            for c in explicit_candidates
+            if id(c) not in incompat_ids
+            and constraint.is_satisfied_by(c)
+            and all(req.is_satisfied_by(c) for req in requirements[identifier])
+        )
+
+    def _make_requirement_from_install_req(
+        self, ireq: InstallRequirement, requested_extras: Iterable[str]
+    ) -> Optional[Requirement]:
+        if not ireq.match_markers(requested_extras):
+            logger.info(
+                "Ignoring %s: markers '%s' don't match your environment",
+                ireq.name,
+                ireq.markers,
+            )
+            return None
+        if not ireq.link:
+            return SpecifierRequirement(ireq)
+        self._fail_if_link_is_unsupported_wheel(ireq.link)
+        cand = self._make_candidate_from_link(
+            ireq.link,
+            extras=frozenset(ireq.extras),
+            template=ireq,
+            name=canonicalize_name(ireq.name) if ireq.name else None,
+            version=None,
+        )
+        if cand is None:
+            # There's no way we can satisfy a URL requirement if the underlying
+            # candidate fails to build. An unnamed URL must be user-supplied, so
+            # we fail eagerly. If the URL is named, an unsatisfiable requirement
+            # can make the resolver do the right thing, either backtrack (and
+            # maybe find some other requirement that's buildable) or raise a
+            # ResolutionImpossible eventually.
+            if not ireq.name:
+                raise self._build_failures[ireq.link]
+            return UnsatisfiableRequirement(canonicalize_name(ireq.name))
+        return self.make_requirement_from_candidate(cand)
+
+    def collect_root_requirements(
+        self, root_ireqs: List[InstallRequirement]
+    ) -> CollectedRootRequirements:
+        collected = CollectedRootRequirements([], {}, {})
+        for i, ireq in enumerate(root_ireqs):
+            if ireq.constraint:
+                # Ensure we only accept valid constraints
+                problem = check_invalid_constraint_type(ireq)
+                if problem:
+                    raise InstallationError(problem)
+                if not ireq.match_markers():
+                    continue
+                assert ireq.name, "Constraint must be named"
+                name = canonicalize_name(ireq.name)
+                if name in collected.constraints:
+                    collected.constraints[name] &= ireq
+                else:
+                    collected.constraints[name] = Constraint.from_ireq(ireq)
+            else:
+                req = self._make_requirement_from_install_req(
+                    ireq,
+                    requested_extras=(),
+                )
+                if req is None:
+                    continue
+                if ireq.user_supplied and req.name not in collected.user_requested:
+                    collected.user_requested[req.name] = i
+                collected.requirements.append(req)
+        return collected
+
+    def make_requirement_from_candidate(
+        self, candidate: Candidate
+    ) -> ExplicitRequirement:
+        return ExplicitRequirement(candidate)
+
+    def make_requirement_from_spec(
+        self,
+        specifier: str,
+        comes_from: Optional[InstallRequirement],
+        requested_extras: Iterable[str] = (),
+    ) -> Optional[Requirement]:
+        ireq = self._make_install_req_from_spec(specifier, comes_from)
+        return self._make_requirement_from_install_req(ireq, requested_extras)
+
+    def make_requires_python_requirement(
+        self,
+        specifier: SpecifierSet,
+    ) -> Optional[Requirement]:
+        if self._ignore_requires_python:
+            return None
+        # Don't bother creating a dependency for an empty Requires-Python.
+        if not str(specifier):
+            return None
+        return RequiresPythonRequirement(specifier, self._python_candidate)
+
+    def get_wheel_cache_entry(
+        self, link: Link, name: Optional[str]
+    ) -> Optional[CacheEntry]:
+        """Look up the link in the wheel cache.
+
+        If ``preparer.require_hashes`` is True, don't use the wheel cache,
+        because cached wheels, always built locally, have different hashes
+        than the files downloaded from the index server and thus throw false
+        hash mismatches. Furthermore, cached wheels at present have
+        nondeterministic contents due to file modification times.
+        """
+        if self._wheel_cache is None or self.preparer.require_hashes:
+            return None
+        return self._wheel_cache.get_cache_entry(
+            link=link,
+            package_name=name,
+            supported_tags=get_supported(),
+        )
+
+    def get_dist_to_uninstall(self, candidate: Candidate) -> Optional[BaseDistribution]:
+        # TODO: Are there more cases this needs to return True? Editable?
+        dist = self._installed_dists.get(candidate.project_name)
+        if dist is None:  # Not installed, no uninstallation required.
+            return None
+
+        # We're installing into global site. The current installation must
+        # be uninstalled, no matter it's in global or user site, because the
+        # user site installation has precedence over global.
+        if not self._use_user_site:
+            return dist
+
+        # We're installing into user site. Remove the user site installation.
+        if dist.in_usersite:
+            return dist
+
+        # We're installing into user site, but the installed incompatible
+        # package is in global site. We can't uninstall that, and would let
+        # the new user installation to "shadow" it. But shadowing won't work
+        # in virtual environments, so we error out.
+        if running_under_virtualenv() and dist.in_site_packages:
+            message = (
+                f"Will not install to the user site because it will lack "
+                f"sys.path precedence to {dist.raw_name} in {dist.location}"
+            )
+            raise InstallationError(message)
+        return None
+
+    def _report_requires_python_error(
+        self, causes: Sequence["ConflictCause"]
+    ) -> UnsupportedPythonVersion:
+        assert causes, "Requires-Python error reported with no cause"
+
+        version = self._python_candidate.version
+
+        if len(causes) == 1:
+            specifier = str(causes[0].requirement.specifier)
+            message = (
+                f"Package {causes[0].parent.name!r} requires a different "
+                f"Python: {version} not in {specifier!r}"
+            )
+            return UnsupportedPythonVersion(message)
+
+        message = f"Packages require a different Python. {version} not in:"
+        for cause in causes:
+            package = cause.parent.format_for_error()
+            specifier = str(cause.requirement.specifier)
+            message += f"\n{specifier!r} (required by {package})"
+        return UnsupportedPythonVersion(message)
+
+    def _report_single_requirement_conflict(
+        self, req: Requirement, parent: Optional[Candidate]
+    ) -> DistributionNotFound:
+        if parent is None:
+            req_disp = str(req)
+        else:
+            req_disp = f"{req} (from {parent.name})"
+
+        cands = self._finder.find_all_candidates(req.project_name)
+        versions = [str(v) for v in sorted({c.version for c in cands})]
+
+        logger.critical(
+            "Could not find a version that satisfies the requirement %s "
+            "(from versions: %s)",
+            req_disp,
+            ", ".join(versions) or "none",
+        )
+        if str(req) == "requirements.txt":
+            logger.info(
+                "HINT: You are attempting to install a package literally "
+                'named "requirements.txt" (which cannot exist). Consider '
+                "using the '-r' flag to install the packages listed in "
+                "requirements.txt"
+            )
+
+        return DistributionNotFound(f"No matching distribution found for {req}")
+
+    def get_installation_error(
+        self,
+        e: "ResolutionImpossible[Requirement, Candidate]",
+        constraints: Dict[str, Constraint],
+    ) -> InstallationError:
+
+        assert e.causes, "Installation error reported with no cause"
+
+        # If one of the things we can't solve is "we need Python X.Y",
+        # that is what we report.
+        requires_python_causes = [
+            cause
+            for cause in e.causes
+            if isinstance(cause.requirement, RequiresPythonRequirement)
+            and not cause.requirement.is_satisfied_by(self._python_candidate)
+        ]
+        if requires_python_causes:
+            # The comprehension above makes sure all Requirement instances are
+            # RequiresPythonRequirement, so let's cast for convinience.
+            return self._report_requires_python_error(
+                cast("Sequence[ConflictCause]", requires_python_causes),
+            )
+
+        # Otherwise, we have a set of causes which can't all be satisfied
+        # at once.
+
+        # The simplest case is when we have *one* cause that can't be
+        # satisfied. We just report that case.
+        if len(e.causes) == 1:
+            req, parent = e.causes[0]
+            if req.name not in constraints:
+                return self._report_single_requirement_conflict(req, parent)
+
+        # OK, we now have a list of requirements that can't all be
+        # satisfied at once.
+
+        # A couple of formatting helpers
+        def text_join(parts: List[str]) -> str:
+            if len(parts) == 1:
+                return parts[0]
+
+            return ", ".join(parts[:-1]) + " and " + parts[-1]
+
+        def describe_trigger(parent: Candidate) -> str:
+            ireq = parent.get_install_requirement()
+            if not ireq or not ireq.comes_from:
+                return f"{parent.name}=={parent.version}"
+            if isinstance(ireq.comes_from, InstallRequirement):
+                return str(ireq.comes_from.name)
+            return str(ireq.comes_from)
+
+        triggers = set()
+        for req, parent in e.causes:
+            if parent is None:
+                # This is a root requirement, so we can report it directly
+                trigger = req.format_for_error()
+            else:
+                trigger = describe_trigger(parent)
+            triggers.add(trigger)
+
+        if triggers:
+            info = text_join(sorted(triggers))
+        else:
+            info = "the requested packages"
+
+        msg = (
+            "Cannot install {} because these package versions "
+            "have conflicting dependencies.".format(info)
+        )
+        logger.critical(msg)
+        msg = "\nThe conflict is caused by:"
+
+        relevant_constraints = set()
+        for req, parent in e.causes:
+            if req.name in constraints:
+                relevant_constraints.add(req.name)
+            msg = msg + "\n    "
+            if parent:
+                msg = msg + f"{parent.name} {parent.version} depends on "
+            else:
+                msg = msg + "The user requested "
+            msg = msg + req.format_for_error()
+        for key in relevant_constraints:
+            spec = constraints[key].specifier
+            msg += f"\n    The user requested (constraint) {key}{spec}"
+
+        msg = (
+            msg
+            + "\n\n"
+            + "To fix this you could try to:\n"
+            + "1. loosen the range of package versions you've specified\n"
+            + "2. remove package versions to allow pip attempt to solve "
+            + "the dependency conflict\n"
+        )
+
+        logger.info(msg)
+
+        return DistributionNotFound(
+            "ResolutionImpossible: for help visit "
+            "https://pip.pypa.io/en/latest/user_guide/"
+            "#fixing-conflicting-dependencies"
+        )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py
new file mode 100644
index 0000000..8663097
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py
@@ -0,0 +1,155 @@
+"""Utilities to lazily create and visit candidates found.
+
+Creating and visiting a candidate is a *very* costly operation. It involves
+fetching, extracting, potentially building modules from source, and verifying
+distribution metadata. It is therefore crucial for performance to keep
+everything here lazy all the way down, so we only touch candidates that we
+absolutely need, and not "download the world" when we only need one version of
+something.
+"""
+
+import functools
+from collections.abc import Sequence
+from typing import TYPE_CHECKING, Any, Callable, Iterator, Optional, Set, Tuple
+
+from pip._vendor.packaging.version import _BaseVersion
+
+from .base import Candidate
+
+IndexCandidateInfo = Tuple[_BaseVersion, Callable[[], Optional[Candidate]]]
+
+if TYPE_CHECKING:
+    SequenceCandidate = Sequence[Candidate]
+else:
+    # For compatibility: Python before 3.9 does not support using [] on the
+    # Sequence class.
+    #
+    # >>> from collections.abc import Sequence
+    # >>> Sequence[str]
+    # Traceback (most recent call last):
+    #   File "", line 1, in 
+    # TypeError: 'ABCMeta' object is not subscriptable
+    #
+    # TODO: Remove this block after dropping Python 3.8 support.
+    SequenceCandidate = Sequence
+
+
+def _iter_built(infos: Iterator[IndexCandidateInfo]) -> Iterator[Candidate]:
+    """Iterator for ``FoundCandidates``.
+
+    This iterator is used when the package is not already installed. Candidates
+    from index come later in their normal ordering.
+    """
+    versions_found: Set[_BaseVersion] = set()
+    for version, func in infos:
+        if version in versions_found:
+            continue
+        candidate = func()
+        if candidate is None:
+            continue
+        yield candidate
+        versions_found.add(version)
+
+
+def _iter_built_with_prepended(
+    installed: Candidate, infos: Iterator[IndexCandidateInfo]
+) -> Iterator[Candidate]:
+    """Iterator for ``FoundCandidates``.
+
+    This iterator is used when the resolver prefers the already-installed
+    candidate and NOT to upgrade. The installed candidate is therefore
+    always yielded first, and candidates from index come later in their
+    normal ordering, except skipped when the version is already installed.
+    """
+    yield installed
+    versions_found: Set[_BaseVersion] = {installed.version}
+    for version, func in infos:
+        if version in versions_found:
+            continue
+        candidate = func()
+        if candidate is None:
+            continue
+        yield candidate
+        versions_found.add(version)
+
+
+def _iter_built_with_inserted(
+    installed: Candidate, infos: Iterator[IndexCandidateInfo]
+) -> Iterator[Candidate]:
+    """Iterator for ``FoundCandidates``.
+
+    This iterator is used when the resolver prefers to upgrade an
+    already-installed package. Candidates from index are returned in their
+    normal ordering, except replaced when the version is already installed.
+
+    The implementation iterates through and yields other candidates, inserting
+    the installed candidate exactly once before we start yielding older or
+    equivalent candidates, or after all other candidates if they are all newer.
+    """
+    versions_found: Set[_BaseVersion] = set()
+    for version, func in infos:
+        if version in versions_found:
+            continue
+        # If the installed candidate is better, yield it first.
+        if installed.version >= version:
+            yield installed
+            versions_found.add(installed.version)
+        candidate = func()
+        if candidate is None:
+            continue
+        yield candidate
+        versions_found.add(version)
+
+    # If the installed candidate is older than all other candidates.
+    if installed.version not in versions_found:
+        yield installed
+
+
+class FoundCandidates(SequenceCandidate):
+    """A lazy sequence to provide candidates to the resolver.
+
+    The intended usage is to return this from `find_matches()` so the resolver
+    can iterate through the sequence multiple times, but only access the index
+    page when remote packages are actually needed. This improve performances
+    when suitable candidates are already installed on disk.
+    """
+
+    def __init__(
+        self,
+        get_infos: Callable[[], Iterator[IndexCandidateInfo]],
+        installed: Optional[Candidate],
+        prefers_installed: bool,
+        incompatible_ids: Set[int],
+    ):
+        self._get_infos = get_infos
+        self._installed = installed
+        self._prefers_installed = prefers_installed
+        self._incompatible_ids = incompatible_ids
+
+    def __getitem__(self, index: Any) -> Any:
+        # Implemented to satisfy the ABC check. This is not needed by the
+        # resolver, and should not be used by the provider either (for
+        # performance reasons).
+        raise NotImplementedError("don't do this")
+
+    def __iter__(self) -> Iterator[Candidate]:
+        infos = self._get_infos()
+        if not self._installed:
+            iterator = _iter_built(infos)
+        elif self._prefers_installed:
+            iterator = _iter_built_with_prepended(self._installed, infos)
+        else:
+            iterator = _iter_built_with_inserted(self._installed, infos)
+        return (c for c in iterator if id(c) not in self._incompatible_ids)
+
+    def __len__(self) -> int:
+        # Implemented to satisfy the ABC check. This is not needed by the
+        # resolver, and should not be used by the provider either (for
+        # performance reasons).
+        raise NotImplementedError("don't do this")
+
+    @functools.lru_cache(maxsize=1)
+    def __bool__(self) -> bool:
+        if self._prefers_installed and self._installed:
+            return True
+        return any(self)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/provider.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/provider.py
new file mode 100644
index 0000000..85d3b31
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/provider.py
@@ -0,0 +1,215 @@
+import collections
+import math
+from typing import TYPE_CHECKING, Dict, Iterable, Iterator, Mapping, Sequence, Union
+
+from pip._vendor.resolvelib.providers import AbstractProvider
+
+from .base import Candidate, Constraint, Requirement
+from .candidates import REQUIRES_PYTHON_IDENTIFIER
+from .factory import Factory
+
+if TYPE_CHECKING:
+    from pip._vendor.resolvelib.providers import Preference
+    from pip._vendor.resolvelib.resolvers import RequirementInformation
+
+    PreferenceInformation = RequirementInformation[Requirement, Candidate]
+
+    _ProviderBase = AbstractProvider[Requirement, Candidate, str]
+else:
+    _ProviderBase = AbstractProvider
+
+# Notes on the relationship between the provider, the factory, and the
+# candidate and requirement classes.
+#
+# The provider is a direct implementation of the resolvelib class. Its role
+# is to deliver the API that resolvelib expects.
+#
+# Rather than work with completely abstract "requirement" and "candidate"
+# concepts as resolvelib does, pip has concrete classes implementing these two
+# ideas. The API of Requirement and Candidate objects are defined in the base
+# classes, but essentially map fairly directly to the equivalent provider
+# methods. In particular, `find_matches` and `is_satisfied_by` are
+# requirement methods, and `get_dependencies` is a candidate method.
+#
+# The factory is the interface to pip's internal mechanisms. It is stateless,
+# and is created by the resolver and held as a property of the provider. It is
+# responsible for creating Requirement and Candidate objects, and provides
+# services to those objects (access to pip's finder and preparer).
+
+
+class PipProvider(_ProviderBase):
+    """Pip's provider implementation for resolvelib.
+
+    :params constraints: A mapping of constraints specified by the user. Keys
+        are canonicalized project names.
+    :params ignore_dependencies: Whether the user specified ``--no-deps``.
+    :params upgrade_strategy: The user-specified upgrade strategy.
+    :params user_requested: A set of canonicalized package names that the user
+        supplied for pip to install/upgrade.
+    """
+
+    def __init__(
+        self,
+        factory: Factory,
+        constraints: Dict[str, Constraint],
+        ignore_dependencies: bool,
+        upgrade_strategy: str,
+        user_requested: Dict[str, int],
+    ) -> None:
+        self._factory = factory
+        self._constraints = constraints
+        self._ignore_dependencies = ignore_dependencies
+        self._upgrade_strategy = upgrade_strategy
+        self._user_requested = user_requested
+        self._known_depths: Dict[str, float] = collections.defaultdict(lambda: math.inf)
+
+    def identify(self, requirement_or_candidate: Union[Requirement, Candidate]) -> str:
+        return requirement_or_candidate.name
+
+    def get_preference(  # type: ignore
+        self,
+        identifier: str,
+        resolutions: Mapping[str, Candidate],
+        candidates: Mapping[str, Iterator[Candidate]],
+        information: Mapping[str, Iterable["PreferenceInformation"]],
+        backtrack_causes: Sequence["PreferenceInformation"],
+    ) -> "Preference":
+        """Produce a sort key for given requirement based on preference.
+
+        The lower the return value is, the more preferred this group of
+        arguments is.
+
+        Currently pip considers the followings in order:
+
+        * Prefer if any of the known requirements is "direct", e.g. points to an
+          explicit URL.
+        * If equal, prefer if any requirement is "pinned", i.e. contains
+          operator ``===`` or ``==``.
+        * If equal, calculate an approximate "depth" and resolve requirements
+          closer to the user-specified requirements first.
+        * Order user-specified requirements by the order they are specified.
+        * If equal, prefers "non-free" requirements, i.e. contains at least one
+          operator, such as ``>=`` or ``<``.
+        * If equal, order alphabetically for consistency (helps debuggability).
+        """
+        lookups = (r.get_candidate_lookup() for r, _ in information[identifier])
+        candidate, ireqs = zip(*lookups)
+        operators = [
+            specifier.operator
+            for specifier_set in (ireq.specifier for ireq in ireqs if ireq)
+            for specifier in specifier_set
+        ]
+
+        direct = candidate is not None
+        pinned = any(op[:2] == "==" for op in operators)
+        unfree = bool(operators)
+
+        try:
+            requested_order: Union[int, float] = self._user_requested[identifier]
+        except KeyError:
+            requested_order = math.inf
+            parent_depths = (
+                self._known_depths[parent.name] if parent is not None else 0.0
+                for _, parent in information[identifier]
+            )
+            inferred_depth = min(d for d in parent_depths) + 1.0
+        else:
+            inferred_depth = 1.0
+        self._known_depths[identifier] = inferred_depth
+
+        requested_order = self._user_requested.get(identifier, math.inf)
+
+        # Requires-Python has only one candidate and the check is basically
+        # free, so we always do it first to avoid needless work if it fails.
+        requires_python = identifier == REQUIRES_PYTHON_IDENTIFIER
+
+        # HACK: Setuptools have a very long and solid backward compatibility
+        # track record, and extremely few projects would request a narrow,
+        # non-recent version range of it since that would break a lot things.
+        # (Most projects specify it only to request for an installer feature,
+        # which does not work, but that's another topic.) Intentionally
+        # delaying Setuptools helps reduce branches the resolver has to check.
+        # This serves as a temporary fix for issues like "apache-airlfow[all]"
+        # while we work on "proper" branch pruning techniques.
+        delay_this = identifier == "setuptools"
+
+        # Prefer the causes of backtracking on the assumption that the problem
+        # resolving the dependency tree is related to the failures that caused
+        # the backtracking
+        backtrack_cause = self.is_backtrack_cause(identifier, backtrack_causes)
+
+        return (
+            not requires_python,
+            delay_this,
+            not direct,
+            not pinned,
+            not backtrack_cause,
+            inferred_depth,
+            requested_order,
+            not unfree,
+            identifier,
+        )
+
+    def _get_constraint(self, identifier: str) -> Constraint:
+        if identifier in self._constraints:
+            return self._constraints[identifier]
+
+        # HACK: Theoratically we should check whether this identifier is a valid
+        # "NAME[EXTRAS]" format, and parse out the name part with packaging or
+        # some regular expression. But since pip's resolver only spits out
+        # three kinds of identifiers: normalized PEP 503 names, normalized names
+        # plus extras, and Requires-Python, we can cheat a bit here.
+        name, open_bracket, _ = identifier.partition("[")
+        if open_bracket and name in self._constraints:
+            return self._constraints[name]
+
+        return Constraint.empty()
+
+    def find_matches(
+        self,
+        identifier: str,
+        requirements: Mapping[str, Iterator[Requirement]],
+        incompatibilities: Mapping[str, Iterator[Candidate]],
+    ) -> Iterable[Candidate]:
+        def _eligible_for_upgrade(name: str) -> bool:
+            """Are upgrades allowed for this project?
+
+            This checks the upgrade strategy, and whether the project was one
+            that the user specified in the command line, in order to decide
+            whether we should upgrade if there's a newer version available.
+
+            (Note that we don't need access to the `--upgrade` flag, because
+            an upgrade strategy of "to-satisfy-only" means that `--upgrade`
+            was not specified).
+            """
+            if self._upgrade_strategy == "eager":
+                return True
+            elif self._upgrade_strategy == "only-if-needed":
+                return name in self._user_requested
+            return False
+
+        return self._factory.find_candidates(
+            identifier=identifier,
+            requirements=requirements,
+            constraint=self._get_constraint(identifier),
+            prefers_installed=(not _eligible_for_upgrade(identifier)),
+            incompatibilities=incompatibilities,
+        )
+
+    def is_satisfied_by(self, requirement: Requirement, candidate: Candidate) -> bool:
+        return requirement.is_satisfied_by(candidate)
+
+    def get_dependencies(self, candidate: Candidate) -> Sequence[Requirement]:
+        with_requires = not self._ignore_dependencies
+        return [r for r in candidate.iter_dependencies(with_requires) if r is not None]
+
+    @staticmethod
+    def is_backtrack_cause(
+        identifier: str, backtrack_causes: Sequence["PreferenceInformation"]
+    ) -> bool:
+        for backtrack_cause in backtrack_causes:
+            if identifier == backtrack_cause.requirement.name:
+                return True
+            if backtrack_cause.parent and identifier == backtrack_cause.parent.name:
+                return True
+        return False
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/reporter.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/reporter.py
new file mode 100644
index 0000000..6ced532
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/reporter.py
@@ -0,0 +1,68 @@
+from collections import defaultdict
+from logging import getLogger
+from typing import Any, DefaultDict
+
+from pip._vendor.resolvelib.reporters import BaseReporter
+
+from .base import Candidate, Requirement
+
+logger = getLogger(__name__)
+
+
+class PipReporter(BaseReporter):
+    def __init__(self) -> None:
+        self.backtracks_by_package: DefaultDict[str, int] = defaultdict(int)
+
+        self._messages_at_backtrack = {
+            1: (
+                "pip is looking at multiple versions of {package_name} to "
+                "determine which version is compatible with other "
+                "requirements. This could take a while."
+            ),
+            8: (
+                "pip is looking at multiple versions of {package_name} to "
+                "determine which version is compatible with other "
+                "requirements. This could take a while."
+            ),
+            13: (
+                "This is taking longer than usual. You might need to provide "
+                "the dependency resolver with stricter constraints to reduce "
+                "runtime. See https://pip.pypa.io/warnings/backtracking for "
+                "guidance. If you want to abort this run, press Ctrl + C."
+            ),
+        }
+
+    def backtracking(self, candidate: Candidate) -> None:
+        self.backtracks_by_package[candidate.name] += 1
+
+        count = self.backtracks_by_package[candidate.name]
+        if count not in self._messages_at_backtrack:
+            return
+
+        message = self._messages_at_backtrack[count]
+        logger.info("INFO: %s", message.format(package_name=candidate.name))
+
+
+class PipDebuggingReporter(BaseReporter):
+    """A reporter that does an info log for every event it sees."""
+
+    def starting(self) -> None:
+        logger.info("Reporter.starting()")
+
+    def starting_round(self, index: int) -> None:
+        logger.info("Reporter.starting_round(%r)", index)
+
+    def ending_round(self, index: int, state: Any) -> None:
+        logger.info("Reporter.ending_round(%r, state)", index)
+
+    def ending(self, state: Any) -> None:
+        logger.info("Reporter.ending(%r)", state)
+
+    def adding_requirement(self, requirement: Requirement, parent: Candidate) -> None:
+        logger.info("Reporter.adding_requirement(%r, %r)", requirement, parent)
+
+    def backtracking(self, candidate: Candidate) -> None:
+        logger.info("Reporter.backtracking(%r)", candidate)
+
+    def pinning(self, candidate: Candidate) -> None:
+        logger.info("Reporter.pinning(%r)", candidate)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/requirements.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/requirements.py
new file mode 100644
index 0000000..c19f83c
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/requirements.py
@@ -0,0 +1,166 @@
+from pip._vendor.packaging.specifiers import SpecifierSet
+from pip._vendor.packaging.utils import NormalizedName, canonicalize_name
+
+from pip._internal.req.req_install import InstallRequirement
+
+from .base import Candidate, CandidateLookup, Requirement, format_name
+
+
+class ExplicitRequirement(Requirement):
+    def __init__(self, candidate: Candidate) -> None:
+        self.candidate = candidate
+
+    def __str__(self) -> str:
+        return str(self.candidate)
+
+    def __repr__(self) -> str:
+        return "{class_name}({candidate!r})".format(
+            class_name=self.__class__.__name__,
+            candidate=self.candidate,
+        )
+
+    @property
+    def project_name(self) -> NormalizedName:
+        # No need to canonicalise - the candidate did this
+        return self.candidate.project_name
+
+    @property
+    def name(self) -> str:
+        # No need to canonicalise - the candidate did this
+        return self.candidate.name
+
+    def format_for_error(self) -> str:
+        return self.candidate.format_for_error()
+
+    def get_candidate_lookup(self) -> CandidateLookup:
+        return self.candidate, None
+
+    def is_satisfied_by(self, candidate: Candidate) -> bool:
+        return candidate == self.candidate
+
+
+class SpecifierRequirement(Requirement):
+    def __init__(self, ireq: InstallRequirement) -> None:
+        assert ireq.link is None, "This is a link, not a specifier"
+        self._ireq = ireq
+        self._extras = frozenset(ireq.extras)
+
+    def __str__(self) -> str:
+        return str(self._ireq.req)
+
+    def __repr__(self) -> str:
+        return "{class_name}({requirement!r})".format(
+            class_name=self.__class__.__name__,
+            requirement=str(self._ireq.req),
+        )
+
+    @property
+    def project_name(self) -> NormalizedName:
+        assert self._ireq.req, "Specifier-backed ireq is always PEP 508"
+        return canonicalize_name(self._ireq.req.name)
+
+    @property
+    def name(self) -> str:
+        return format_name(self.project_name, self._extras)
+
+    def format_for_error(self) -> str:
+
+        # Convert comma-separated specifiers into "A, B, ..., F and G"
+        # This makes the specifier a bit more "human readable", without
+        # risking a change in meaning. (Hopefully! Not all edge cases have
+        # been checked)
+        parts = [s.strip() for s in str(self).split(",")]
+        if len(parts) == 0:
+            return ""
+        elif len(parts) == 1:
+            return parts[0]
+
+        return ", ".join(parts[:-1]) + " and " + parts[-1]
+
+    def get_candidate_lookup(self) -> CandidateLookup:
+        return None, self._ireq
+
+    def is_satisfied_by(self, candidate: Candidate) -> bool:
+        assert candidate.name == self.name, (
+            f"Internal issue: Candidate is not for this requirement "
+            f"{candidate.name} vs {self.name}"
+        )
+        # We can safely always allow prereleases here since PackageFinder
+        # already implements the prerelease logic, and would have filtered out
+        # prerelease candidates if the user does not expect them.
+        assert self._ireq.req, "Specifier-backed ireq is always PEP 508"
+        spec = self._ireq.req.specifier
+        return spec.contains(candidate.version, prereleases=True)
+
+
+class RequiresPythonRequirement(Requirement):
+    """A requirement representing Requires-Python metadata."""
+
+    def __init__(self, specifier: SpecifierSet, match: Candidate) -> None:
+        self.specifier = specifier
+        self._candidate = match
+
+    def __str__(self) -> str:
+        return f"Python {self.specifier}"
+
+    def __repr__(self) -> str:
+        return "{class_name}({specifier!r})".format(
+            class_name=self.__class__.__name__,
+            specifier=str(self.specifier),
+        )
+
+    @property
+    def project_name(self) -> NormalizedName:
+        return self._candidate.project_name
+
+    @property
+    def name(self) -> str:
+        return self._candidate.name
+
+    def format_for_error(self) -> str:
+        return str(self)
+
+    def get_candidate_lookup(self) -> CandidateLookup:
+        if self.specifier.contains(self._candidate.version, prereleases=True):
+            return self._candidate, None
+        return None, None
+
+    def is_satisfied_by(self, candidate: Candidate) -> bool:
+        assert candidate.name == self._candidate.name, "Not Python candidate"
+        # We can safely always allow prereleases here since PackageFinder
+        # already implements the prerelease logic, and would have filtered out
+        # prerelease candidates if the user does not expect them.
+        return self.specifier.contains(candidate.version, prereleases=True)
+
+
+class UnsatisfiableRequirement(Requirement):
+    """A requirement that cannot be satisfied."""
+
+    def __init__(self, name: NormalizedName) -> None:
+        self._name = name
+
+    def __str__(self) -> str:
+        return f"{self._name} (unavailable)"
+
+    def __repr__(self) -> str:
+        return "{class_name}({name!r})".format(
+            class_name=self.__class__.__name__,
+            name=str(self._name),
+        )
+
+    @property
+    def project_name(self) -> NormalizedName:
+        return self._name
+
+    @property
+    def name(self) -> str:
+        return self._name
+
+    def format_for_error(self) -> str:
+        return str(self)
+
+    def get_candidate_lookup(self) -> CandidateLookup:
+        return None, None
+
+    def is_satisfied_by(self, candidate: Candidate) -> bool:
+        return False
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/resolver.py b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/resolver.py
new file mode 100644
index 0000000..12f9670
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/resolution/resolvelib/resolver.py
@@ -0,0 +1,251 @@
+import functools
+import logging
+import os
+from typing import TYPE_CHECKING, Dict, List, Optional, Set, Tuple, cast
+
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.resolvelib import BaseReporter, ResolutionImpossible
+from pip._vendor.resolvelib import Resolver as RLResolver
+from pip._vendor.resolvelib.structs import DirectedGraph
+
+from pip._internal.cache import WheelCache
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.operations.prepare import RequirementPreparer
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.req.req_set import RequirementSet
+from pip._internal.resolution.base import BaseResolver, InstallRequirementProvider
+from pip._internal.resolution.resolvelib.provider import PipProvider
+from pip._internal.resolution.resolvelib.reporter import (
+    PipDebuggingReporter,
+    PipReporter,
+)
+
+from .base import Candidate, Requirement
+from .factory import Factory
+
+if TYPE_CHECKING:
+    from pip._vendor.resolvelib.resolvers import Result as RLResult
+
+    Result = RLResult[Requirement, Candidate, str]
+
+
+logger = logging.getLogger(__name__)
+
+
+class Resolver(BaseResolver):
+    _allowed_strategies = {"eager", "only-if-needed", "to-satisfy-only"}
+
+    def __init__(
+        self,
+        preparer: RequirementPreparer,
+        finder: PackageFinder,
+        wheel_cache: Optional[WheelCache],
+        make_install_req: InstallRequirementProvider,
+        use_user_site: bool,
+        ignore_dependencies: bool,
+        ignore_installed: bool,
+        ignore_requires_python: bool,
+        force_reinstall: bool,
+        upgrade_strategy: str,
+        py_version_info: Optional[Tuple[int, ...]] = None,
+    ):
+        super().__init__()
+        assert upgrade_strategy in self._allowed_strategies
+
+        self.factory = Factory(
+            finder=finder,
+            preparer=preparer,
+            make_install_req=make_install_req,
+            wheel_cache=wheel_cache,
+            use_user_site=use_user_site,
+            force_reinstall=force_reinstall,
+            ignore_installed=ignore_installed,
+            ignore_requires_python=ignore_requires_python,
+            py_version_info=py_version_info,
+        )
+        self.ignore_dependencies = ignore_dependencies
+        self.upgrade_strategy = upgrade_strategy
+        self._result: Optional[Result] = None
+
+    def resolve(
+        self, root_reqs: List[InstallRequirement], check_supported_wheels: bool
+    ) -> RequirementSet:
+        collected = self.factory.collect_root_requirements(root_reqs)
+        provider = PipProvider(
+            factory=self.factory,
+            constraints=collected.constraints,
+            ignore_dependencies=self.ignore_dependencies,
+            upgrade_strategy=self.upgrade_strategy,
+            user_requested=collected.user_requested,
+        )
+        if "PIP_RESOLVER_DEBUG" in os.environ:
+            reporter: BaseReporter = PipDebuggingReporter()
+        else:
+            reporter = PipReporter()
+        resolver: RLResolver[Requirement, Candidate, str] = RLResolver(
+            provider,
+            reporter,
+        )
+
+        try:
+            try_to_avoid_resolution_too_deep = 2000000
+            result = self._result = resolver.resolve(
+                collected.requirements, max_rounds=try_to_avoid_resolution_too_deep
+            )
+
+        except ResolutionImpossible as e:
+            error = self.factory.get_installation_error(
+                cast("ResolutionImpossible[Requirement, Candidate]", e),
+                collected.constraints,
+            )
+            raise error from e
+
+        req_set = RequirementSet(check_supported_wheels=check_supported_wheels)
+        for candidate in result.mapping.values():
+            ireq = candidate.get_install_requirement()
+            if ireq is None:
+                continue
+
+            # Check if there is already an installation under the same name,
+            # and set a flag for later stages to uninstall it, if needed.
+            installed_dist = self.factory.get_dist_to_uninstall(candidate)
+            if installed_dist is None:
+                # There is no existing installation -- nothing to uninstall.
+                ireq.should_reinstall = False
+            elif self.factory.force_reinstall:
+                # The --force-reinstall flag is set -- reinstall.
+                ireq.should_reinstall = True
+            elif installed_dist.version != candidate.version:
+                # The installation is different in version -- reinstall.
+                ireq.should_reinstall = True
+            elif candidate.is_editable or installed_dist.editable:
+                # The incoming distribution is editable, or different in
+                # editable-ness to installation -- reinstall.
+                ireq.should_reinstall = True
+            elif candidate.source_link and candidate.source_link.is_file:
+                # The incoming distribution is under file://
+                if candidate.source_link.is_wheel:
+                    # is a local wheel -- do nothing.
+                    logger.info(
+                        "%s is already installed with the same version as the "
+                        "provided wheel. Use --force-reinstall to force an "
+                        "installation of the wheel.",
+                        ireq.name,
+                    )
+                    continue
+
+                # is a local sdist or path -- reinstall
+                ireq.should_reinstall = True
+            else:
+                continue
+
+            link = candidate.source_link
+            if link and link.is_yanked:
+                # The reason can contain non-ASCII characters, Unicode
+                # is required for Python 2.
+                msg = (
+                    "The candidate selected for download or install is a "
+                    "yanked version: {name!r} candidate (version {version} "
+                    "at {link})\nReason for being yanked: {reason}"
+                ).format(
+                    name=candidate.name,
+                    version=candidate.version,
+                    link=link,
+                    reason=link.yanked_reason or "",
+                )
+                logger.warning(msg)
+
+            req_set.add_named_requirement(ireq)
+
+        reqs = req_set.all_requirements
+        self.factory.preparer.prepare_linked_requirements_more(reqs)
+        return req_set
+
+    def get_installation_order(
+        self, req_set: RequirementSet
+    ) -> List[InstallRequirement]:
+        """Get order for installation of requirements in RequirementSet.
+
+        The returned list contains a requirement before another that depends on
+        it. This helps ensure that the environment is kept consistent as they
+        get installed one-by-one.
+
+        The current implementation creates a topological ordering of the
+        dependency graph, while breaking any cycles in the graph at arbitrary
+        points. We make no guarantees about where the cycle would be broken,
+        other than they would be broken.
+        """
+        assert self._result is not None, "must call resolve() first"
+
+        graph = self._result.graph
+        weights = get_topological_weights(
+            graph,
+            expected_node_count=len(self._result.mapping) + 1,
+        )
+
+        sorted_items = sorted(
+            req_set.requirements.items(),
+            key=functools.partial(_req_set_item_sorter, weights=weights),
+            reverse=True,
+        )
+        return [ireq for _, ireq in sorted_items]
+
+
+def get_topological_weights(
+    graph: "DirectedGraph[Optional[str]]", expected_node_count: int
+) -> Dict[Optional[str], int]:
+    """Assign weights to each node based on how "deep" they are.
+
+    This implementation may change at any point in the future without prior
+    notice.
+
+    We take the length for the longest path to any node from root, ignoring any
+    paths that contain a single node twice (i.e. cycles). This is done through
+    a depth-first search through the graph, while keeping track of the path to
+    the node.
+
+    Cycles in the graph result would result in node being revisited while also
+    being it's own path. In this case, take no action. This helps ensure we
+    don't get stuck in a cycle.
+
+    When assigning weight, the longer path (i.e. larger length) is preferred.
+    """
+    path: Set[Optional[str]] = set()
+    weights: Dict[Optional[str], int] = {}
+
+    def visit(node: Optional[str]) -> None:
+        if node in path:
+            # We hit a cycle, so we'll break it here.
+            return
+
+        # Time to visit the children!
+        path.add(node)
+        for child in graph.iter_children(node):
+            visit(child)
+        path.remove(node)
+
+        last_known_parent_count = weights.get(node, 0)
+        weights[node] = max(last_known_parent_count, len(path))
+
+    # `None` is guaranteed to be the root node by resolvelib.
+    visit(None)
+
+    # Sanity checks
+    assert weights[None] == 0
+    assert len(weights) == expected_node_count
+
+    return weights
+
+
+def _req_set_item_sorter(
+    item: Tuple[str, InstallRequirement],
+    weights: Dict[Optional[str], int],
+) -> Tuple[int, str]:
+    """Key function used to sort install requirements for installation.
+
+    Based on the "weight" mapping calculated in ``get_installation_order()``.
+    The canonical package name is returned as the second member as a tie-
+    breaker to ensure the result is predictable, which is useful in tests.
+    """
+    name = canonicalize_name(item[0])
+    return weights[name], name
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/self_outdated_check.py b/utils/python-venv/Lib/site-packages/pip/_internal/self_outdated_check.py
new file mode 100644
index 0000000..72f70fc
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/self_outdated_check.py
@@ -0,0 +1,182 @@
+import datetime
+import hashlib
+import json
+import logging
+import optparse
+import os.path
+import sys
+from typing import Any, Dict
+
+from pip._vendor.packaging.version import parse as parse_version
+
+from pip._internal.index.collector import LinkCollector
+from pip._internal.index.package_finder import PackageFinder
+from pip._internal.metadata import get_default_environment
+from pip._internal.models.selection_prefs import SelectionPreferences
+from pip._internal.network.session import PipSession
+from pip._internal.utils.filesystem import adjacent_tmp_file, check_path_owner, replace
+from pip._internal.utils.misc import ensure_dir
+
+SELFCHECK_DATE_FMT = "%Y-%m-%dT%H:%M:%SZ"
+
+
+logger = logging.getLogger(__name__)
+
+
+def _get_statefile_name(key: str) -> str:
+    key_bytes = key.encode()
+    name = hashlib.sha224(key_bytes).hexdigest()
+    return name
+
+
+class SelfCheckState:
+    def __init__(self, cache_dir: str) -> None:
+        self.state: Dict[str, Any] = {}
+        self.statefile_path = None
+
+        # Try to load the existing state
+        if cache_dir:
+            self.statefile_path = os.path.join(
+                cache_dir, "selfcheck", _get_statefile_name(self.key)
+            )
+            try:
+                with open(self.statefile_path, encoding="utf-8") as statefile:
+                    self.state = json.load(statefile)
+            except (OSError, ValueError, KeyError):
+                # Explicitly suppressing exceptions, since we don't want to
+                # error out if the cache file is invalid.
+                pass
+
+    @property
+    def key(self) -> str:
+        return sys.prefix
+
+    def save(self, pypi_version: str, current_time: datetime.datetime) -> None:
+        # If we do not have a path to cache in, don't bother saving.
+        if not self.statefile_path:
+            return
+
+        # Check to make sure that we own the directory
+        if not check_path_owner(os.path.dirname(self.statefile_path)):
+            return
+
+        # Now that we've ensured the directory is owned by this user, we'll go
+        # ahead and make sure that all our directories are created.
+        ensure_dir(os.path.dirname(self.statefile_path))
+
+        state = {
+            # Include the key so it's easy to tell which pip wrote the
+            # file.
+            "key": self.key,
+            "last_check": current_time.strftime(SELFCHECK_DATE_FMT),
+            "pypi_version": pypi_version,
+        }
+
+        text = json.dumps(state, sort_keys=True, separators=(",", ":"))
+
+        with adjacent_tmp_file(self.statefile_path) as f:
+            f.write(text.encode())
+
+        try:
+            # Since we have a prefix-specific state file, we can just
+            # overwrite whatever is there, no need to check.
+            replace(f.name, self.statefile_path)
+        except OSError:
+            # Best effort.
+            pass
+
+
+def was_installed_by_pip(pkg: str) -> bool:
+    """Checks whether pkg was installed by pip
+
+    This is used not to display the upgrade message when pip is in fact
+    installed by system package manager, such as dnf on Fedora.
+    """
+    dist = get_default_environment().get_distribution(pkg)
+    return dist is not None and "pip" == dist.installer
+
+
+def pip_self_version_check(session: PipSession, options: optparse.Values) -> None:
+    """Check for an update for pip.
+
+    Limit the frequency of checks to once per week. State is stored either in
+    the active virtualenv or in the user's USER_CACHE_DIR keyed off the prefix
+    of the pip script path.
+    """
+    installed_dist = get_default_environment().get_distribution("pip")
+    if not installed_dist:
+        return
+
+    pip_version = installed_dist.version
+    pypi_version = None
+
+    try:
+        state = SelfCheckState(cache_dir=options.cache_dir)
+
+        current_time = datetime.datetime.utcnow()
+        # Determine if we need to refresh the state
+        if "last_check" in state.state and "pypi_version" in state.state:
+            last_check = datetime.datetime.strptime(
+                state.state["last_check"], SELFCHECK_DATE_FMT
+            )
+            if (current_time - last_check).total_seconds() < 7 * 24 * 60 * 60:
+                pypi_version = state.state["pypi_version"]
+
+        # Refresh the version if we need to or just see if we need to warn
+        if pypi_version is None:
+            # Lets use PackageFinder to see what the latest pip version is
+            link_collector = LinkCollector.create(
+                session,
+                options=options,
+                suppress_no_index=True,
+            )
+
+            # Pass allow_yanked=False so we don't suggest upgrading to a
+            # yanked version.
+            selection_prefs = SelectionPreferences(
+                allow_yanked=False,
+                allow_all_prereleases=False,  # Explicitly set to False
+            )
+
+            finder = PackageFinder.create(
+                link_collector=link_collector,
+                selection_prefs=selection_prefs,
+            )
+            best_candidate = finder.find_best_candidate("pip").best_candidate
+            if best_candidate is None:
+                return
+            pypi_version = str(best_candidate.version)
+
+            # save that we've performed a check
+            state.save(pypi_version, current_time)
+
+        remote_version = parse_version(pypi_version)
+
+        local_version_is_older = (
+            pip_version < remote_version
+            and pip_version.base_version != remote_version.base_version
+            and was_installed_by_pip("pip")
+        )
+
+        # Determine if our pypi_version is older
+        if not local_version_is_older:
+            return
+
+        # We cannot tell how the current pip is available in the current
+        # command context, so be pragmatic here and suggest the command
+        # that's always available. This does not accommodate spaces in
+        # `sys.executable`.
+        pip_cmd = f"{sys.executable} -m pip"
+        logger.warning(
+            "You are using pip version %s; however, version %s is "
+            "available.\nYou should consider upgrading via the "
+            "'%s install --upgrade pip' command.",
+            pip_version,
+            pypi_version,
+            pip_cmd,
+        )
+    except Exception:
+        logger.debug(
+            "There was an error checking the latest version of pip",
+            exc_info=True,
+        )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/_log.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/_log.py
new file mode 100644
index 0000000..92c4c6a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/_log.py
@@ -0,0 +1,38 @@
+"""Customize logging
+
+Defines custom logger class for the `logger.verbose(...)` method.
+
+init_logging() must be called before any other modules that call logging.getLogger.
+"""
+
+import logging
+from typing import Any, cast
+
+# custom log level for `--verbose` output
+# between DEBUG and INFO
+VERBOSE = 15
+
+
+class VerboseLogger(logging.Logger):
+    """Custom Logger, defining a verbose log-level
+
+    VERBOSE is between INFO and DEBUG.
+    """
+
+    def verbose(self, msg: str, *args: Any, **kwargs: Any) -> None:
+        return self.log(VERBOSE, msg, *args, **kwargs)
+
+
+def getLogger(name: str) -> VerboseLogger:
+    """logging.getLogger, but ensures our VerboseLogger class is returned"""
+    return cast(VerboseLogger, logging.getLogger(name))
+
+
+def init_logging() -> None:
+    """Register our VerboseLogger and VERBOSE log level.
+
+    Should be called before any calls to getLogger(),
+    i.e. in pip._internal.__init__
+    """
+    logging.setLoggerClass(VerboseLogger)
+    logging.addLevelName(VERBOSE, "VERBOSE")
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/appdirs.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/appdirs.py
new file mode 100644
index 0000000..16933bf
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/appdirs.py
@@ -0,0 +1,52 @@
+"""
+This code wraps the vendored appdirs module to so the return values are
+compatible for the current pip code base.
+
+The intention is to rewrite current usages gradually, keeping the tests pass,
+and eventually drop this after all usages are changed.
+"""
+
+import os
+import sys
+from typing import List
+
+from pip._vendor import platformdirs as _appdirs
+
+
+def user_cache_dir(appname: str) -> str:
+    return _appdirs.user_cache_dir(appname, appauthor=False)
+
+
+def _macos_user_config_dir(appname: str, roaming: bool = True) -> str:
+    # Use ~/Application Support/pip, if the directory exists.
+    path = _appdirs.user_data_dir(appname, appauthor=False, roaming=roaming)
+    if os.path.isdir(path):
+        return path
+
+    # Use a Linux-like ~/.config/pip, by default.
+    linux_like_path = "~/.config/"
+    if appname:
+        linux_like_path = os.path.join(linux_like_path, appname)
+
+    return os.path.expanduser(linux_like_path)
+
+
+def user_config_dir(appname: str, roaming: bool = True) -> str:
+    if sys.platform == "darwin":
+        return _macos_user_config_dir(appname, roaming)
+
+    return _appdirs.user_config_dir(appname, appauthor=False, roaming=roaming)
+
+
+# for the discussion regarding site_config_dir locations
+# see 
+def site_config_dirs(appname: str) -> List[str]:
+    if sys.platform == "darwin":
+        return [_appdirs.site_data_dir(appname, appauthor=False, multipath=True)]
+
+    dirval = _appdirs.site_config_dir(appname, appauthor=False, multipath=True)
+    if sys.platform == "win32":
+        return [dirval]
+
+    # Unix-y system. Look in /etc as well.
+    return dirval.split(os.pathsep) + ["/etc"]
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/compat.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/compat.py
new file mode 100644
index 0000000..3f4d300
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/compat.py
@@ -0,0 +1,63 @@
+"""Stuff that differs in different Python versions and platform
+distributions."""
+
+import logging
+import os
+import sys
+
+__all__ = ["get_path_uid", "stdlib_pkgs", "WINDOWS"]
+
+
+logger = logging.getLogger(__name__)
+
+
+def has_tls() -> bool:
+    try:
+        import _ssl  # noqa: F401  # ignore unused
+
+        return True
+    except ImportError:
+        pass
+
+    from pip._vendor.urllib3.util import IS_PYOPENSSL
+
+    return IS_PYOPENSSL
+
+
+def get_path_uid(path: str) -> int:
+    """
+    Return path's uid.
+
+    Does not follow symlinks:
+        https://github.com/pypa/pip/pull/935#discussion_r5307003
+
+    Placed this function in compat due to differences on AIX and
+    Jython, that should eventually go away.
+
+    :raises OSError: When path is a symlink or can't be read.
+    """
+    if hasattr(os, "O_NOFOLLOW"):
+        fd = os.open(path, os.O_RDONLY | os.O_NOFOLLOW)
+        file_uid = os.fstat(fd).st_uid
+        os.close(fd)
+    else:  # AIX and Jython
+        # WARNING: time of check vulnerability, but best we can do w/o NOFOLLOW
+        if not os.path.islink(path):
+            # older versions of Jython don't have `os.fstat`
+            file_uid = os.stat(path).st_uid
+        else:
+            # raise OSError for parity with os.O_NOFOLLOW above
+            raise OSError(f"{path} is a symlink; Will not return uid for symlinks")
+    return file_uid
+
+
+# packages in the stdlib that may have installation metadata, but should not be
+# considered 'installed'.  this theoretically could be determined based on
+# dist.location (py27:`sysconfig.get_paths()['stdlib']`,
+# py26:sysconfig.get_config_vars('LIBDEST')), but fear platform variation may
+# make this ineffective, so hard-coding
+stdlib_pkgs = {"python", "wsgiref", "argparse"}
+
+
+# windows detection, covers cpython and ironpython
+WINDOWS = sys.platform.startswith("win") or (sys.platform == "cli" and os.name == "nt")
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/compatibility_tags.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/compatibility_tags.py
new file mode 100644
index 0000000..b6ed9a7
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/compatibility_tags.py
@@ -0,0 +1,165 @@
+"""Generate and work with PEP 425 Compatibility Tags.
+"""
+
+import re
+from typing import List, Optional, Tuple
+
+from pip._vendor.packaging.tags import (
+    PythonVersion,
+    Tag,
+    compatible_tags,
+    cpython_tags,
+    generic_tags,
+    interpreter_name,
+    interpreter_version,
+    mac_platforms,
+)
+
+_osx_arch_pat = re.compile(r"(.+)_(\d+)_(\d+)_(.+)")
+
+
+def version_info_to_nodot(version_info: Tuple[int, ...]) -> str:
+    # Only use up to the first two numbers.
+    return "".join(map(str, version_info[:2]))
+
+
+def _mac_platforms(arch: str) -> List[str]:
+    match = _osx_arch_pat.match(arch)
+    if match:
+        name, major, minor, actual_arch = match.groups()
+        mac_version = (int(major), int(minor))
+        arches = [
+            # Since we have always only checked that the platform starts
+            # with "macosx", for backwards-compatibility we extract the
+            # actual prefix provided by the user in case they provided
+            # something like "macosxcustom_". It may be good to remove
+            # this as undocumented or deprecate it in the future.
+            "{}_{}".format(name, arch[len("macosx_") :])
+            for arch in mac_platforms(mac_version, actual_arch)
+        ]
+    else:
+        # arch pattern didn't match (?!)
+        arches = [arch]
+    return arches
+
+
+def _custom_manylinux_platforms(arch: str) -> List[str]:
+    arches = [arch]
+    arch_prefix, arch_sep, arch_suffix = arch.partition("_")
+    if arch_prefix == "manylinux2014":
+        # manylinux1/manylinux2010 wheels run on most manylinux2014 systems
+        # with the exception of wheels depending on ncurses. PEP 599 states
+        # manylinux1/manylinux2010 wheels should be considered
+        # manylinux2014 wheels:
+        # https://www.python.org/dev/peps/pep-0599/#backwards-compatibility-with-manylinux2010-wheels
+        if arch_suffix in {"i686", "x86_64"}:
+            arches.append("manylinux2010" + arch_sep + arch_suffix)
+            arches.append("manylinux1" + arch_sep + arch_suffix)
+    elif arch_prefix == "manylinux2010":
+        # manylinux1 wheels run on most manylinux2010 systems with the
+        # exception of wheels depending on ncurses. PEP 571 states
+        # manylinux1 wheels should be considered manylinux2010 wheels:
+        # https://www.python.org/dev/peps/pep-0571/#backwards-compatibility-with-manylinux1-wheels
+        arches.append("manylinux1" + arch_sep + arch_suffix)
+    return arches
+
+
+def _get_custom_platforms(arch: str) -> List[str]:
+    arch_prefix, arch_sep, arch_suffix = arch.partition("_")
+    if arch.startswith("macosx"):
+        arches = _mac_platforms(arch)
+    elif arch_prefix in ["manylinux2014", "manylinux2010"]:
+        arches = _custom_manylinux_platforms(arch)
+    else:
+        arches = [arch]
+    return arches
+
+
+def _expand_allowed_platforms(platforms: Optional[List[str]]) -> Optional[List[str]]:
+    if not platforms:
+        return None
+
+    seen = set()
+    result = []
+
+    for p in platforms:
+        if p in seen:
+            continue
+        additions = [c for c in _get_custom_platforms(p) if c not in seen]
+        seen.update(additions)
+        result.extend(additions)
+
+    return result
+
+
+def _get_python_version(version: str) -> PythonVersion:
+    if len(version) > 1:
+        return int(version[0]), int(version[1:])
+    else:
+        return (int(version[0]),)
+
+
+def _get_custom_interpreter(
+    implementation: Optional[str] = None, version: Optional[str] = None
+) -> str:
+    if implementation is None:
+        implementation = interpreter_name()
+    if version is None:
+        version = interpreter_version()
+    return f"{implementation}{version}"
+
+
+def get_supported(
+    version: Optional[str] = None,
+    platforms: Optional[List[str]] = None,
+    impl: Optional[str] = None,
+    abis: Optional[List[str]] = None,
+) -> List[Tag]:
+    """Return a list of supported tags for each version specified in
+    `versions`.
+
+    :param version: a string version, of the form "33" or "32",
+        or None. The version will be assumed to support our ABI.
+    :param platform: specify a list of platforms you want valid
+        tags for, or None. If None, use the local system platform.
+    :param impl: specify the exact implementation you want valid
+        tags for, or None. If None, use the local interpreter impl.
+    :param abis: specify a list of abis you want valid
+        tags for, or None. If None, use the local interpreter abi.
+    """
+    supported: List[Tag] = []
+
+    python_version: Optional[PythonVersion] = None
+    if version is not None:
+        python_version = _get_python_version(version)
+
+    interpreter = _get_custom_interpreter(impl, version)
+
+    platforms = _expand_allowed_platforms(platforms)
+
+    is_cpython = (impl or interpreter_name()) == "cp"
+    if is_cpython:
+        supported.extend(
+            cpython_tags(
+                python_version=python_version,
+                abis=abis,
+                platforms=platforms,
+            )
+        )
+    else:
+        supported.extend(
+            generic_tags(
+                interpreter=interpreter,
+                abis=abis,
+                platforms=platforms,
+            )
+        )
+    supported.extend(
+        compatible_tags(
+            python_version=python_version,
+            interpreter=interpreter,
+            platforms=platforms,
+        )
+    )
+
+    return supported
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/datetime.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/datetime.py
new file mode 100644
index 0000000..8668b3b
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/datetime.py
@@ -0,0 +1,11 @@
+"""For when pip wants to check the date or time.
+"""
+
+import datetime
+
+
+def today_is_later_than(year: int, month: int, day: int) -> bool:
+    today = datetime.date.today()
+    given = datetime.date(year, month, day)
+
+    return today > given
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/deprecation.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/deprecation.py
new file mode 100644
index 0000000..72bd6f2
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/deprecation.py
@@ -0,0 +1,120 @@
+"""
+A module that implements tooling to enable easy warnings about deprecations.
+"""
+
+import logging
+import warnings
+from typing import Any, Optional, TextIO, Type, Union
+
+from pip._vendor.packaging.version import parse
+
+from pip import __version__ as current_version  # NOTE: tests patch this name.
+
+DEPRECATION_MSG_PREFIX = "DEPRECATION: "
+
+
+class PipDeprecationWarning(Warning):
+    pass
+
+
+_original_showwarning: Any = None
+
+
+# Warnings <-> Logging Integration
+def _showwarning(
+    message: Union[Warning, str],
+    category: Type[Warning],
+    filename: str,
+    lineno: int,
+    file: Optional[TextIO] = None,
+    line: Optional[str] = None,
+) -> None:
+    if file is not None:
+        if _original_showwarning is not None:
+            _original_showwarning(message, category, filename, lineno, file, line)
+    elif issubclass(category, PipDeprecationWarning):
+        # We use a specially named logger which will handle all of the
+        # deprecation messages for pip.
+        logger = logging.getLogger("pip._internal.deprecations")
+        logger.warning(message)
+    else:
+        _original_showwarning(message, category, filename, lineno, file, line)
+
+
+def install_warning_logger() -> None:
+    # Enable our Deprecation Warnings
+    warnings.simplefilter("default", PipDeprecationWarning, append=True)
+
+    global _original_showwarning
+
+    if _original_showwarning is None:
+        _original_showwarning = warnings.showwarning
+        warnings.showwarning = _showwarning
+
+
+def deprecated(
+    *,
+    reason: str,
+    replacement: Optional[str],
+    gone_in: Optional[str],
+    feature_flag: Optional[str] = None,
+    issue: Optional[int] = None,
+) -> None:
+    """Helper to deprecate existing functionality.
+
+    reason:
+        Textual reason shown to the user about why this functionality has
+        been deprecated. Should be a complete sentence.
+    replacement:
+        Textual suggestion shown to the user about what alternative
+        functionality they can use.
+    gone_in:
+        The version of pip does this functionality should get removed in.
+        Raises an error if pip's current version is greater than or equal to
+        this.
+    feature_flag:
+        Command-line flag of the form --use-feature={feature_flag} for testing
+        upcoming functionality.
+    issue:
+        Issue number on the tracker that would serve as a useful place for
+        users to find related discussion and provide feedback.
+    """
+
+    # Determine whether or not the feature is already gone in this version.
+    is_gone = gone_in is not None and parse(current_version) >= parse(gone_in)
+
+    message_parts = [
+        (reason, f"{DEPRECATION_MSG_PREFIX}{{}}"),
+        (
+            gone_in,
+            "pip {} will enforce this behaviour change."
+            if not is_gone
+            else "Since pip {}, this is no longer supported.",
+        ),
+        (
+            replacement,
+            "A possible replacement is {}.",
+        ),
+        (
+            feature_flag,
+            "You can use the flag --use-feature={} to test the upcoming behaviour."
+            if not is_gone
+            else None,
+        ),
+        (
+            issue,
+            "Discussion can be found at https://github.com/pypa/pip/issues/{}",
+        ),
+    ]
+
+    message = " ".join(
+        format_str.format(value)
+        for value, format_str in message_parts
+        if format_str is not None and value is not None
+    )
+
+    # Raise as an error if this behaviour is deprecated.
+    if is_gone:
+        raise PipDeprecationWarning(message)
+
+    warnings.warn(message, category=PipDeprecationWarning, stacklevel=2)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/direct_url_helpers.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/direct_url_helpers.py
new file mode 100644
index 0000000..0e8e5e1
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/direct_url_helpers.py
@@ -0,0 +1,87 @@
+from typing import Optional
+
+from pip._internal.models.direct_url import ArchiveInfo, DirectUrl, DirInfo, VcsInfo
+from pip._internal.models.link import Link
+from pip._internal.utils.urls import path_to_url
+from pip._internal.vcs import vcs
+
+
+def direct_url_as_pep440_direct_reference(direct_url: DirectUrl, name: str) -> str:
+    """Convert a DirectUrl to a pip requirement string."""
+    direct_url.validate()  # if invalid, this is a pip bug
+    requirement = name + " @ "
+    fragments = []
+    if isinstance(direct_url.info, VcsInfo):
+        requirement += "{}+{}@{}".format(
+            direct_url.info.vcs, direct_url.url, direct_url.info.commit_id
+        )
+    elif isinstance(direct_url.info, ArchiveInfo):
+        requirement += direct_url.url
+        if direct_url.info.hash:
+            fragments.append(direct_url.info.hash)
+    else:
+        assert isinstance(direct_url.info, DirInfo)
+        requirement += direct_url.url
+    if direct_url.subdirectory:
+        fragments.append("subdirectory=" + direct_url.subdirectory)
+    if fragments:
+        requirement += "#" + "&".join(fragments)
+    return requirement
+
+
+def direct_url_for_editable(source_dir: str) -> DirectUrl:
+    return DirectUrl(
+        url=path_to_url(source_dir),
+        info=DirInfo(editable=True),
+    )
+
+
+def direct_url_from_link(
+    link: Link, source_dir: Optional[str] = None, link_is_in_wheel_cache: bool = False
+) -> DirectUrl:
+    if link.is_vcs:
+        vcs_backend = vcs.get_backend_for_scheme(link.scheme)
+        assert vcs_backend
+        url, requested_revision, _ = vcs_backend.get_url_rev_and_auth(
+            link.url_without_fragment
+        )
+        # For VCS links, we need to find out and add commit_id.
+        if link_is_in_wheel_cache:
+            # If the requested VCS link corresponds to a cached
+            # wheel, it means the requested revision was an
+            # immutable commit hash, otherwise it would not have
+            # been cached. In that case we don't have a source_dir
+            # with the VCS checkout.
+            assert requested_revision
+            commit_id = requested_revision
+        else:
+            # If the wheel was not in cache, it means we have
+            # had to checkout from VCS to build and we have a source_dir
+            # which we can inspect to find out the commit id.
+            assert source_dir
+            commit_id = vcs_backend.get_revision(source_dir)
+        return DirectUrl(
+            url=url,
+            info=VcsInfo(
+                vcs=vcs_backend.name,
+                commit_id=commit_id,
+                requested_revision=requested_revision,
+            ),
+            subdirectory=link.subdirectory_fragment,
+        )
+    elif link.is_existing_dir():
+        return DirectUrl(
+            url=link.url_without_fragment,
+            info=DirInfo(),
+            subdirectory=link.subdirectory_fragment,
+        )
+    else:
+        hash = None
+        hash_name = link.hash_name
+        if hash_name:
+            hash = f"{hash_name}={link.hash}"
+        return DirectUrl(
+            url=link.url_without_fragment,
+            info=ArchiveInfo(hash=hash),
+            subdirectory=link.subdirectory_fragment,
+        )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/distutils_args.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/distutils_args.py
new file mode 100644
index 0000000..e4aa5b8
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/distutils_args.py
@@ -0,0 +1,42 @@
+from distutils.errors import DistutilsArgError
+from distutils.fancy_getopt import FancyGetopt
+from typing import Dict, List
+
+_options = [
+    ("exec-prefix=", None, ""),
+    ("home=", None, ""),
+    ("install-base=", None, ""),
+    ("install-data=", None, ""),
+    ("install-headers=", None, ""),
+    ("install-lib=", None, ""),
+    ("install-platlib=", None, ""),
+    ("install-purelib=", None, ""),
+    ("install-scripts=", None, ""),
+    ("prefix=", None, ""),
+    ("root=", None, ""),
+    ("user", None, ""),
+]
+
+
+# typeshed doesn't permit Tuple[str, None, str], see python/typeshed#3469.
+_distutils_getopt = FancyGetopt(_options)  # type: ignore
+
+
+def parse_distutils_args(args: List[str]) -> Dict[str, str]:
+    """Parse provided arguments, returning an object that has the
+    matched arguments.
+
+    Any unknown arguments are ignored.
+    """
+    result = {}
+    for arg in args:
+        try:
+            _, match = _distutils_getopt.getopt(args=[arg])
+        except DistutilsArgError:
+            # We don't care about any other options, which here may be
+            # considered unrecognized since our option list is not
+            # exhaustive.
+            pass
+        else:
+            result.update(match.__dict__)
+    return result
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/egg_link.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/egg_link.py
new file mode 100644
index 0000000..9e0da8d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/egg_link.py
@@ -0,0 +1,75 @@
+# The following comment should be removed at some point in the future.
+# mypy: strict-optional=False
+
+import os
+import re
+import sys
+from typing import Optional
+
+from pip._internal.locations import site_packages, user_site
+from pip._internal.utils.virtualenv import (
+    running_under_virtualenv,
+    virtualenv_no_global,
+)
+
+__all__ = [
+    "egg_link_path_from_sys_path",
+    "egg_link_path_from_location",
+]
+
+
+def _egg_link_name(raw_name: str) -> str:
+    """
+    Convert a Name metadata value to a .egg-link name, by applying
+    the same substitution as pkg_resources's safe_name function.
+    Note: we cannot use canonicalize_name because it has a different logic.
+    """
+    return re.sub("[^A-Za-z0-9.]+", "-", raw_name) + ".egg-link"
+
+
+def egg_link_path_from_sys_path(raw_name: str) -> Optional[str]:
+    """
+    Look for a .egg-link file for project name, by walking sys.path.
+    """
+    egg_link_name = _egg_link_name(raw_name)
+    for path_item in sys.path:
+        egg_link = os.path.join(path_item, egg_link_name)
+        if os.path.isfile(egg_link):
+            return egg_link
+    return None
+
+
+def egg_link_path_from_location(raw_name: str) -> Optional[str]:
+    """
+    Return the path for the .egg-link file if it exists, otherwise, None.
+
+    There's 3 scenarios:
+    1) not in a virtualenv
+       try to find in site.USER_SITE, then site_packages
+    2) in a no-global virtualenv
+       try to find in site_packages
+    3) in a yes-global virtualenv
+       try to find in site_packages, then site.USER_SITE
+       (don't look in global location)
+
+    For #1 and #3, there could be odd cases, where there's an egg-link in 2
+    locations.
+
+    This method will just return the first one found.
+    """
+    sites = []
+    if running_under_virtualenv():
+        sites.append(site_packages)
+        if not virtualenv_no_global() and user_site:
+            sites.append(user_site)
+    else:
+        if user_site:
+            sites.append(user_site)
+        sites.append(site_packages)
+
+    egg_link_name = _egg_link_name(raw_name)
+    for site in sites:
+        egglink = os.path.join(site, egg_link_name)
+        if os.path.isfile(egglink):
+            return egglink
+    return None
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/encoding.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/encoding.py
new file mode 100644
index 0000000..1c73f6c
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/encoding.py
@@ -0,0 +1,36 @@
+import codecs
+import locale
+import re
+import sys
+from typing import List, Tuple
+
+BOMS: List[Tuple[bytes, str]] = [
+    (codecs.BOM_UTF8, "utf-8"),
+    (codecs.BOM_UTF16, "utf-16"),
+    (codecs.BOM_UTF16_BE, "utf-16-be"),
+    (codecs.BOM_UTF16_LE, "utf-16-le"),
+    (codecs.BOM_UTF32, "utf-32"),
+    (codecs.BOM_UTF32_BE, "utf-32-be"),
+    (codecs.BOM_UTF32_LE, "utf-32-le"),
+]
+
+ENCODING_RE = re.compile(br"coding[:=]\s*([-\w.]+)")
+
+
+def auto_decode(data: bytes) -> str:
+    """Check a bytes string for a BOM to correctly detect the encoding
+
+    Fallback to locale.getpreferredencoding(False) like open() on Python3"""
+    for bom, encoding in BOMS:
+        if data.startswith(bom):
+            return data[len(bom) :].decode(encoding)
+    # Lets check the first two lines as in PEP263
+    for line in data.split(b"\n")[:2]:
+        if line[0:1] == b"#" and ENCODING_RE.search(line):
+            result = ENCODING_RE.search(line)
+            assert result is not None
+            encoding = result.groups()[0].decode("ascii")
+            return data.decode(encoding)
+    return data.decode(
+        locale.getpreferredencoding(False) or sys.getdefaultencoding(),
+    )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/entrypoints.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/entrypoints.py
new file mode 100644
index 0000000..1504a12
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/entrypoints.py
@@ -0,0 +1,27 @@
+import sys
+from typing import List, Optional
+
+from pip._internal.cli.main import main
+
+
+def _wrapper(args: Optional[List[str]] = None) -> int:
+    """Central wrapper for all old entrypoints.
+
+    Historically pip has had several entrypoints defined. Because of issues
+    arising from PATH, sys.path, multiple Pythons, their interactions, and most
+    of them having a pip installed, users suffer every time an entrypoint gets
+    moved.
+
+    To alleviate this pain, and provide a mechanism for warning users and
+    directing them to an appropriate place for help, we now define all of
+    our old entrypoints as wrappers for the current one.
+    """
+    sys.stderr.write(
+        "WARNING: pip is being invoked by an old script wrapper. This will "
+        "fail in a future version of pip.\n"
+        "Please see https://github.com/pypa/pip/issues/5599 for advice on "
+        "fixing the underlying issue.\n"
+        "To avoid this problem you can invoke Python with '-m pip' instead of "
+        "running pip directly.\n"
+    )
+    return main(args)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/filesystem.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/filesystem.py
new file mode 100644
index 0000000..b7e6191
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/filesystem.py
@@ -0,0 +1,182 @@
+import fnmatch
+import os
+import os.path
+import random
+import shutil
+import stat
+import sys
+from contextlib import contextmanager
+from tempfile import NamedTemporaryFile
+from typing import Any, BinaryIO, Iterator, List, Union, cast
+
+from pip._vendor.tenacity import retry, stop_after_delay, wait_fixed
+
+from pip._internal.utils.compat import get_path_uid
+from pip._internal.utils.misc import format_size
+
+
+def check_path_owner(path: str) -> bool:
+    # If we don't have a way to check the effective uid of this process, then
+    # we'll just assume that we own the directory.
+    if sys.platform == "win32" or not hasattr(os, "geteuid"):
+        return True
+
+    assert os.path.isabs(path)
+
+    previous = None
+    while path != previous:
+        if os.path.lexists(path):
+            # Check if path is writable by current user.
+            if os.geteuid() == 0:
+                # Special handling for root user in order to handle properly
+                # cases where users use sudo without -H flag.
+                try:
+                    path_uid = get_path_uid(path)
+                except OSError:
+                    return False
+                return path_uid == 0
+            else:
+                return os.access(path, os.W_OK)
+        else:
+            previous, path = path, os.path.dirname(path)
+    return False  # assume we don't own the path
+
+
+def copy2_fixed(src: str, dest: str) -> None:
+    """Wrap shutil.copy2() but map errors copying socket files to
+    SpecialFileError as expected.
+
+    See also https://bugs.python.org/issue37700.
+    """
+    try:
+        shutil.copy2(src, dest)
+    except OSError:
+        for f in [src, dest]:
+            try:
+                is_socket_file = is_socket(f)
+            except OSError:
+                # An error has already occurred. Another error here is not
+                # a problem and we can ignore it.
+                pass
+            else:
+                if is_socket_file:
+                    raise shutil.SpecialFileError(f"`{f}` is a socket")
+
+        raise
+
+
+def is_socket(path: str) -> bool:
+    return stat.S_ISSOCK(os.lstat(path).st_mode)
+
+
+@contextmanager
+def adjacent_tmp_file(path: str, **kwargs: Any) -> Iterator[BinaryIO]:
+    """Return a file-like object pointing to a tmp file next to path.
+
+    The file is created securely and is ensured to be written to disk
+    after the context reaches its end.
+
+    kwargs will be passed to tempfile.NamedTemporaryFile to control
+    the way the temporary file will be opened.
+    """
+    with NamedTemporaryFile(
+        delete=False,
+        dir=os.path.dirname(path),
+        prefix=os.path.basename(path),
+        suffix=".tmp",
+        **kwargs,
+    ) as f:
+        result = cast(BinaryIO, f)
+        try:
+            yield result
+        finally:
+            result.flush()
+            os.fsync(result.fileno())
+
+
+# Tenacity raises RetryError by default, explicitly raise the original exception
+_replace_retry = retry(reraise=True, stop=stop_after_delay(1), wait=wait_fixed(0.25))
+
+replace = _replace_retry(os.replace)
+
+
+# test_writable_dir and _test_writable_dir_win are copied from Flit,
+# with the author's agreement to also place them under pip's license.
+def test_writable_dir(path: str) -> bool:
+    """Check if a directory is writable.
+
+    Uses os.access() on POSIX, tries creating files on Windows.
+    """
+    # If the directory doesn't exist, find the closest parent that does.
+    while not os.path.isdir(path):
+        parent = os.path.dirname(path)
+        if parent == path:
+            break  # Should never get here, but infinite loops are bad
+        path = parent
+
+    if os.name == "posix":
+        return os.access(path, os.W_OK)
+
+    return _test_writable_dir_win(path)
+
+
+def _test_writable_dir_win(path: str) -> bool:
+    # os.access doesn't work on Windows: http://bugs.python.org/issue2528
+    # and we can't use tempfile: http://bugs.python.org/issue22107
+    basename = "accesstest_deleteme_fishfingers_custard_"
+    alphabet = "abcdefghijklmnopqrstuvwxyz0123456789"
+    for _ in range(10):
+        name = basename + "".join(random.choice(alphabet) for _ in range(6))
+        file = os.path.join(path, name)
+        try:
+            fd = os.open(file, os.O_RDWR | os.O_CREAT | os.O_EXCL)
+        except FileExistsError:
+            pass
+        except PermissionError:
+            # This could be because there's a directory with the same name.
+            # But it's highly unlikely there's a directory called that,
+            # so we'll assume it's because the parent dir is not writable.
+            # This could as well be because the parent dir is not readable,
+            # due to non-privileged user access.
+            return False
+        else:
+            os.close(fd)
+            os.unlink(file)
+            return True
+
+    # This should never be reached
+    raise OSError("Unexpected condition testing for writable directory")
+
+
+def find_files(path: str, pattern: str) -> List[str]:
+    """Returns a list of absolute paths of files beneath path, recursively,
+    with filenames which match the UNIX-style shell glob pattern."""
+    result: List[str] = []
+    for root, _, files in os.walk(path):
+        matches = fnmatch.filter(files, pattern)
+        result.extend(os.path.join(root, f) for f in matches)
+    return result
+
+
+def file_size(path: str) -> Union[int, float]:
+    # If it's a symlink, return 0.
+    if os.path.islink(path):
+        return 0
+    return os.path.getsize(path)
+
+
+def format_file_size(path: str) -> str:
+    return format_size(file_size(path))
+
+
+def directory_size(path: str) -> Union[int, float]:
+    size = 0.0
+    for root, _dirs, files in os.walk(path):
+        for filename in files:
+            file_path = os.path.join(root, filename)
+            size += file_size(file_path)
+    return size
+
+
+def format_directory_size(path: str) -> str:
+    return format_size(directory_size(path))
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/filetypes.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/filetypes.py
new file mode 100644
index 0000000..5948570
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/filetypes.py
@@ -0,0 +1,27 @@
+"""Filetype information.
+"""
+
+from typing import Tuple
+
+from pip._internal.utils.misc import splitext
+
+WHEEL_EXTENSION = ".whl"
+BZ2_EXTENSIONS: Tuple[str, ...] = (".tar.bz2", ".tbz")
+XZ_EXTENSIONS: Tuple[str, ...] = (
+    ".tar.xz",
+    ".txz",
+    ".tlz",
+    ".tar.lz",
+    ".tar.lzma",
+)
+ZIP_EXTENSIONS: Tuple[str, ...] = (".zip", WHEEL_EXTENSION)
+TAR_EXTENSIONS: Tuple[str, ...] = (".tar.gz", ".tgz", ".tar")
+ARCHIVE_EXTENSIONS = ZIP_EXTENSIONS + BZ2_EXTENSIONS + TAR_EXTENSIONS + XZ_EXTENSIONS
+
+
+def is_archive_file(name: str) -> bool:
+    """Return True if `name` is a considered as an archive file."""
+    ext = splitext(name)[1].lower()
+    if ext in ARCHIVE_EXTENSIONS:
+        return True
+    return False
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/glibc.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/glibc.py
new file mode 100644
index 0000000..7bd3c20
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/glibc.py
@@ -0,0 +1,88 @@
+# The following comment should be removed at some point in the future.
+# mypy: strict-optional=False
+
+import os
+import sys
+from typing import Optional, Tuple
+
+
+def glibc_version_string() -> Optional[str]:
+    "Returns glibc version string, or None if not using glibc."
+    return glibc_version_string_confstr() or glibc_version_string_ctypes()
+
+
+def glibc_version_string_confstr() -> Optional[str]:
+    "Primary implementation of glibc_version_string using os.confstr."
+    # os.confstr is quite a bit faster than ctypes.DLL. It's also less likely
+    # to be broken or missing. This strategy is used in the standard library
+    # platform module:
+    # https://github.com/python/cpython/blob/fcf1d003bf4f0100c9d0921ff3d70e1127ca1b71/Lib/platform.py#L175-L183
+    if sys.platform == "win32":
+        return None
+    try:
+        # os.confstr("CS_GNU_LIBC_VERSION") returns a string like "glibc 2.17":
+        _, version = os.confstr("CS_GNU_LIBC_VERSION").split()
+    except (AttributeError, OSError, ValueError):
+        # os.confstr() or CS_GNU_LIBC_VERSION not available (or a bad value)...
+        return None
+    return version
+
+
+def glibc_version_string_ctypes() -> Optional[str]:
+    "Fallback implementation of glibc_version_string using ctypes."
+
+    try:
+        import ctypes
+    except ImportError:
+        return None
+
+    # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen
+    # manpage says, "If filename is NULL, then the returned handle is for the
+    # main program". This way we can let the linker do the work to figure out
+    # which libc our process is actually using.
+    process_namespace = ctypes.CDLL(None)
+    try:
+        gnu_get_libc_version = process_namespace.gnu_get_libc_version
+    except AttributeError:
+        # Symbol doesn't exist -> therefore, we are not linked to
+        # glibc.
+        return None
+
+    # Call gnu_get_libc_version, which returns a string like "2.5"
+    gnu_get_libc_version.restype = ctypes.c_char_p
+    version_str = gnu_get_libc_version()
+    # py2 / py3 compatibility:
+    if not isinstance(version_str, str):
+        version_str = version_str.decode("ascii")
+
+    return version_str
+
+
+# platform.libc_ver regularly returns completely nonsensical glibc
+# versions. E.g. on my computer, platform says:
+#
+#   ~$ python2.7 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.7')
+#   ~$ python3.5 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.9')
+#
+# But the truth is:
+#
+#   ~$ ldd --version
+#   ldd (Debian GLIBC 2.22-11) 2.22
+#
+# This is unfortunate, because it means that the linehaul data on libc
+# versions that was generated by pip 8.1.2 and earlier is useless and
+# misleading. Solution: instead of using platform, use our code that actually
+# works.
+def libc_ver() -> Tuple[str, str]:
+    """Try to determine the glibc version
+
+    Returns a tuple of strings (lib, version) which default to empty strings
+    in case the lookup fails.
+    """
+    glibc_version = glibc_version_string()
+    if glibc_version is None:
+        return ("", "")
+    else:
+        return ("glibc", glibc_version)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/hashes.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/hashes.py
new file mode 100644
index 0000000..82eb035
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/hashes.py
@@ -0,0 +1,144 @@
+import hashlib
+from typing import TYPE_CHECKING, BinaryIO, Dict, Iterator, List
+
+from pip._internal.exceptions import HashMismatch, HashMissing, InstallationError
+from pip._internal.utils.misc import read_chunks
+
+if TYPE_CHECKING:
+    from hashlib import _Hash
+
+    # NoReturn introduced in 3.6.2; imported only for type checking to maintain
+    # pip compatibility with older patch versions of Python 3.6
+    from typing import NoReturn
+
+
+# The recommended hash algo of the moment. Change this whenever the state of
+# the art changes; it won't hurt backward compatibility.
+FAVORITE_HASH = "sha256"
+
+
+# Names of hashlib algorithms allowed by the --hash option and ``pip hash``
+# Currently, those are the ones at least as collision-resistant as sha256.
+STRONG_HASHES = ["sha256", "sha384", "sha512"]
+
+
+class Hashes:
+    """A wrapper that builds multiple hashes at once and checks them against
+    known-good values
+
+    """
+
+    def __init__(self, hashes: Dict[str, List[str]] = None) -> None:
+        """
+        :param hashes: A dict of algorithm names pointing to lists of allowed
+            hex digests
+        """
+        allowed = {}
+        if hashes is not None:
+            for alg, keys in hashes.items():
+                # Make sure values are always sorted (to ease equality checks)
+                allowed[alg] = sorted(keys)
+        self._allowed = allowed
+
+    def __and__(self, other: "Hashes") -> "Hashes":
+        if not isinstance(other, Hashes):
+            return NotImplemented
+
+        # If either of the Hashes object is entirely empty (i.e. no hash
+        # specified at all), all hashes from the other object are allowed.
+        if not other:
+            return self
+        if not self:
+            return other
+
+        # Otherwise only hashes that present in both objects are allowed.
+        new = {}
+        for alg, values in other._allowed.items():
+            if alg not in self._allowed:
+                continue
+            new[alg] = [v for v in values if v in self._allowed[alg]]
+        return Hashes(new)
+
+    @property
+    def digest_count(self) -> int:
+        return sum(len(digests) for digests in self._allowed.values())
+
+    def is_hash_allowed(self, hash_name: str, hex_digest: str) -> bool:
+        """Return whether the given hex digest is allowed."""
+        return hex_digest in self._allowed.get(hash_name, [])
+
+    def check_against_chunks(self, chunks: Iterator[bytes]) -> None:
+        """Check good hashes against ones built from iterable of chunks of
+        data.
+
+        Raise HashMismatch if none match.
+
+        """
+        gots = {}
+        for hash_name in self._allowed.keys():
+            try:
+                gots[hash_name] = hashlib.new(hash_name)
+            except (ValueError, TypeError):
+                raise InstallationError(f"Unknown hash name: {hash_name}")
+
+        for chunk in chunks:
+            for hash in gots.values():
+                hash.update(chunk)
+
+        for hash_name, got in gots.items():
+            if got.hexdigest() in self._allowed[hash_name]:
+                return
+        self._raise(gots)
+
+    def _raise(self, gots: Dict[str, "_Hash"]) -> "NoReturn":
+        raise HashMismatch(self._allowed, gots)
+
+    def check_against_file(self, file: BinaryIO) -> None:
+        """Check good hashes against a file-like object
+
+        Raise HashMismatch if none match.
+
+        """
+        return self.check_against_chunks(read_chunks(file))
+
+    def check_against_path(self, path: str) -> None:
+        with open(path, "rb") as file:
+            return self.check_against_file(file)
+
+    def __bool__(self) -> bool:
+        """Return whether I know any known-good hashes."""
+        return bool(self._allowed)
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, Hashes):
+            return NotImplemented
+        return self._allowed == other._allowed
+
+    def __hash__(self) -> int:
+        return hash(
+            ",".join(
+                sorted(
+                    ":".join((alg, digest))
+                    for alg, digest_list in self._allowed.items()
+                    for digest in digest_list
+                )
+            )
+        )
+
+
+class MissingHashes(Hashes):
+    """A workalike for Hashes used when we're missing a hash for a requirement
+
+    It computes the actual hash of the requirement and raises a HashMissing
+    exception showing it to the user.
+
+    """
+
+    def __init__(self) -> None:
+        """Don't offer the ``hashes`` kwarg."""
+        # Pass our favorite hash in to generate a "gotten hash". With the
+        # empty list, it will never match, so an error will always raise.
+        super().__init__(hashes={FAVORITE_HASH: []})
+
+    def _raise(self, gots: Dict[str, "_Hash"]) -> "NoReturn":
+        raise HashMissing(gots[FAVORITE_HASH].hexdigest())
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/inject_securetransport.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/inject_securetransport.py
new file mode 100644
index 0000000..276aa79
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/inject_securetransport.py
@@ -0,0 +1,35 @@
+"""A helper module that injects SecureTransport, on import.
+
+The import should be done as early as possible, to ensure all requests and
+sessions (or whatever) are created after injecting SecureTransport.
+
+Note that we only do the injection on macOS, when the linked OpenSSL is too
+old to handle TLSv1.2.
+"""
+
+import sys
+
+
+def inject_securetransport() -> None:
+    # Only relevant on macOS
+    if sys.platform != "darwin":
+        return
+
+    try:
+        import ssl
+    except ImportError:
+        return
+
+    # Checks for OpenSSL 1.0.1
+    if ssl.OPENSSL_VERSION_NUMBER >= 0x1000100F:
+        return
+
+    try:
+        from pip._vendor.urllib3.contrib import securetransport
+    except (ImportError, OSError):
+        return
+
+    securetransport.inject_into_urllib3()
+
+
+inject_securetransport()
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/logging.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/logging.py
new file mode 100644
index 0000000..a4b828a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/logging.py
@@ -0,0 +1,358 @@
+import contextlib
+import errno
+import logging
+import logging.handlers
+import os
+import sys
+from logging import Filter
+from typing import IO, Any, Callable, Iterator, Optional, TextIO, Type, cast
+
+from pip._internal.utils._log import VERBOSE, getLogger
+from pip._internal.utils.compat import WINDOWS
+from pip._internal.utils.deprecation import DEPRECATION_MSG_PREFIX
+from pip._internal.utils.misc import ensure_dir
+
+try:
+    import threading
+except ImportError:
+    import dummy_threading as threading  # type: ignore
+
+
+try:
+    from pip._vendor import colorama
+# Lots of different errors can come from this, including SystemError and
+# ImportError.
+except Exception:
+    colorama = None
+
+
+_log_state = threading.local()
+subprocess_logger = getLogger("pip.subprocessor")
+
+
+class BrokenStdoutLoggingError(Exception):
+    """
+    Raised if BrokenPipeError occurs for the stdout stream while logging.
+    """
+
+
+def _is_broken_pipe_error(exc_class: Type[BaseException], exc: BaseException) -> bool:
+    if exc_class is BrokenPipeError:
+        return True
+
+    # On Windows, a broken pipe can show up as EINVAL rather than EPIPE:
+    # https://bugs.python.org/issue19612
+    # https://bugs.python.org/issue30418
+    if not WINDOWS:
+        return False
+
+    return isinstance(exc, OSError) and exc.errno in (errno.EINVAL, errno.EPIPE)
+
+
+@contextlib.contextmanager
+def indent_log(num: int = 2) -> Iterator[None]:
+    """
+    A context manager which will cause the log output to be indented for any
+    log messages emitted inside it.
+    """
+    # For thread-safety
+    _log_state.indentation = get_indentation()
+    _log_state.indentation += num
+    try:
+        yield
+    finally:
+        _log_state.indentation -= num
+
+
+def get_indentation() -> int:
+    return getattr(_log_state, "indentation", 0)
+
+
+class IndentingFormatter(logging.Formatter):
+    default_time_format = "%Y-%m-%dT%H:%M:%S"
+
+    def __init__(
+        self,
+        *args: Any,
+        add_timestamp: bool = False,
+        **kwargs: Any,
+    ) -> None:
+        """
+        A logging.Formatter that obeys the indent_log() context manager.
+
+        :param add_timestamp: A bool indicating output lines should be prefixed
+            with their record's timestamp.
+        """
+        self.add_timestamp = add_timestamp
+        super().__init__(*args, **kwargs)
+
+    def get_message_start(self, formatted: str, levelno: int) -> str:
+        """
+        Return the start of the formatted log message (not counting the
+        prefix to add to each line).
+        """
+        if levelno < logging.WARNING:
+            return ""
+        if formatted.startswith(DEPRECATION_MSG_PREFIX):
+            # Then the message already has a prefix.  We don't want it to
+            # look like "WARNING: DEPRECATION: ...."
+            return ""
+        if levelno < logging.ERROR:
+            return "WARNING: "
+
+        return "ERROR: "
+
+    def format(self, record: logging.LogRecord) -> str:
+        """
+        Calls the standard formatter, but will indent all of the log message
+        lines by our current indentation level.
+        """
+        formatted = super().format(record)
+        message_start = self.get_message_start(formatted, record.levelno)
+        formatted = message_start + formatted
+
+        prefix = ""
+        if self.add_timestamp:
+            prefix = f"{self.formatTime(record)} "
+        prefix += " " * get_indentation()
+        formatted = "".join([prefix + line for line in formatted.splitlines(True)])
+        return formatted
+
+
+def _color_wrap(*colors: str) -> Callable[[str], str]:
+    def wrapped(inp: str) -> str:
+        return "".join(list(colors) + [inp, colorama.Style.RESET_ALL])
+
+    return wrapped
+
+
+class ColorizedStreamHandler(logging.StreamHandler):
+
+    # Don't build up a list of colors if we don't have colorama
+    if colorama:
+        COLORS = [
+            # This needs to be in order from highest logging level to lowest.
+            (logging.ERROR, _color_wrap(colorama.Fore.RED)),
+            (logging.WARNING, _color_wrap(colorama.Fore.YELLOW)),
+        ]
+    else:
+        COLORS = []
+
+    def __init__(self, stream: Optional[TextIO] = None, no_color: bool = None) -> None:
+        super().__init__(stream)
+        self._no_color = no_color
+
+        if WINDOWS and colorama:
+            self.stream = colorama.AnsiToWin32(self.stream)
+
+    def _using_stdout(self) -> bool:
+        """
+        Return whether the handler is using sys.stdout.
+        """
+        if WINDOWS and colorama:
+            # Then self.stream is an AnsiToWin32 object.
+            stream = cast(colorama.AnsiToWin32, self.stream)
+            return stream.wrapped is sys.stdout
+
+        return self.stream is sys.stdout
+
+    def should_color(self) -> bool:
+        # Don't colorize things if we do not have colorama or if told not to
+        if not colorama or self._no_color:
+            return False
+
+        real_stream = (
+            self.stream
+            if not isinstance(self.stream, colorama.AnsiToWin32)
+            else self.stream.wrapped
+        )
+
+        # If the stream is a tty we should color it
+        if hasattr(real_stream, "isatty") and real_stream.isatty():
+            return True
+
+        # If we have an ANSI term we should color it
+        if os.environ.get("TERM") == "ANSI":
+            return True
+
+        # If anything else we should not color it
+        return False
+
+    def format(self, record: logging.LogRecord) -> str:
+        msg = super().format(record)
+
+        if self.should_color():
+            for level, color in self.COLORS:
+                if record.levelno >= level:
+                    msg = color(msg)
+                    break
+
+        return msg
+
+    # The logging module says handleError() can be customized.
+    def handleError(self, record: logging.LogRecord) -> None:
+        exc_class, exc = sys.exc_info()[:2]
+        # If a broken pipe occurred while calling write() or flush() on the
+        # stdout stream in logging's Handler.emit(), then raise our special
+        # exception so we can handle it in main() instead of logging the
+        # broken pipe error and continuing.
+        if (
+            exc_class
+            and exc
+            and self._using_stdout()
+            and _is_broken_pipe_error(exc_class, exc)
+        ):
+            raise BrokenStdoutLoggingError()
+
+        return super().handleError(record)
+
+
+class BetterRotatingFileHandler(logging.handlers.RotatingFileHandler):
+    def _open(self) -> IO[Any]:
+        ensure_dir(os.path.dirname(self.baseFilename))
+        return super()._open()
+
+
+class MaxLevelFilter(Filter):
+    def __init__(self, level: int) -> None:
+        self.level = level
+
+    def filter(self, record: logging.LogRecord) -> bool:
+        return record.levelno < self.level
+
+
+class ExcludeLoggerFilter(Filter):
+
+    """
+    A logging Filter that excludes records from a logger (or its children).
+    """
+
+    def filter(self, record: logging.LogRecord) -> bool:
+        # The base Filter class allows only records from a logger (or its
+        # children).
+        return not super().filter(record)
+
+
+def setup_logging(verbosity: int, no_color: bool, user_log_file: Optional[str]) -> int:
+    """Configures and sets up all of the logging
+
+    Returns the requested logging level, as its integer value.
+    """
+
+    # Determine the level to be logging at.
+    if verbosity >= 2:
+        level_number = logging.DEBUG
+    elif verbosity == 1:
+        level_number = VERBOSE
+    elif verbosity == -1:
+        level_number = logging.WARNING
+    elif verbosity == -2:
+        level_number = logging.ERROR
+    elif verbosity <= -3:
+        level_number = logging.CRITICAL
+    else:
+        level_number = logging.INFO
+
+    level = logging.getLevelName(level_number)
+
+    # The "root" logger should match the "console" level *unless* we also need
+    # to log to a user log file.
+    include_user_log = user_log_file is not None
+    if include_user_log:
+        additional_log_file = user_log_file
+        root_level = "DEBUG"
+    else:
+        additional_log_file = "/dev/null"
+        root_level = level
+
+    # Disable any logging besides WARNING unless we have DEBUG level logging
+    # enabled for vendored libraries.
+    vendored_log_level = "WARNING" if level in ["INFO", "ERROR"] else "DEBUG"
+
+    # Shorthands for clarity
+    log_streams = {
+        "stdout": "ext://sys.stdout",
+        "stderr": "ext://sys.stderr",
+    }
+    handler_classes = {
+        "stream": "pip._internal.utils.logging.ColorizedStreamHandler",
+        "file": "pip._internal.utils.logging.BetterRotatingFileHandler",
+    }
+    handlers = ["console", "console_errors", "console_subprocess"] + (
+        ["user_log"] if include_user_log else []
+    )
+
+    logging.config.dictConfig(
+        {
+            "version": 1,
+            "disable_existing_loggers": False,
+            "filters": {
+                "exclude_warnings": {
+                    "()": "pip._internal.utils.logging.MaxLevelFilter",
+                    "level": logging.WARNING,
+                },
+                "restrict_to_subprocess": {
+                    "()": "logging.Filter",
+                    "name": subprocess_logger.name,
+                },
+                "exclude_subprocess": {
+                    "()": "pip._internal.utils.logging.ExcludeLoggerFilter",
+                    "name": subprocess_logger.name,
+                },
+            },
+            "formatters": {
+                "indent": {
+                    "()": IndentingFormatter,
+                    "format": "%(message)s",
+                },
+                "indent_with_timestamp": {
+                    "()": IndentingFormatter,
+                    "format": "%(message)s",
+                    "add_timestamp": True,
+                },
+            },
+            "handlers": {
+                "console": {
+                    "level": level,
+                    "class": handler_classes["stream"],
+                    "no_color": no_color,
+                    "stream": log_streams["stdout"],
+                    "filters": ["exclude_subprocess", "exclude_warnings"],
+                    "formatter": "indent",
+                },
+                "console_errors": {
+                    "level": "WARNING",
+                    "class": handler_classes["stream"],
+                    "no_color": no_color,
+                    "stream": log_streams["stderr"],
+                    "filters": ["exclude_subprocess"],
+                    "formatter": "indent",
+                },
+                # A handler responsible for logging to the console messages
+                # from the "subprocessor" logger.
+                "console_subprocess": {
+                    "level": level,
+                    "class": handler_classes["stream"],
+                    "no_color": no_color,
+                    "stream": log_streams["stderr"],
+                    "filters": ["restrict_to_subprocess"],
+                    "formatter": "indent",
+                },
+                "user_log": {
+                    "level": "DEBUG",
+                    "class": handler_classes["file"],
+                    "filename": additional_log_file,
+                    "encoding": "utf-8",
+                    "delay": True,
+                    "formatter": "indent_with_timestamp",
+                },
+            },
+            "root": {
+                "level": root_level,
+                "handlers": handlers,
+            },
+            "loggers": {"pip._vendor": {"level": vendored_log_level}},
+        }
+    )
+
+    return level_number
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/misc.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/misc.py
new file mode 100644
index 0000000..d3e9053
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/misc.py
@@ -0,0 +1,689 @@
+# The following comment should be removed at some point in the future.
+# mypy: strict-optional=False
+
+import contextlib
+import errno
+import getpass
+import hashlib
+import io
+import logging
+import os
+import posixpath
+import shutil
+import stat
+import sys
+import urllib.parse
+from io import StringIO
+from itertools import filterfalse, tee, zip_longest
+from types import TracebackType
+from typing import (
+    Any,
+    BinaryIO,
+    Callable,
+    ContextManager,
+    Iterable,
+    Iterator,
+    List,
+    Optional,
+    TextIO,
+    Tuple,
+    Type,
+    TypeVar,
+    cast,
+)
+
+from pip._vendor.pkg_resources import Distribution
+from pip._vendor.tenacity import retry, stop_after_delay, wait_fixed
+
+from pip import __version__
+from pip._internal.exceptions import CommandError
+from pip._internal.locations import get_major_minor_version, site_packages, user_site
+from pip._internal.utils.compat import WINDOWS
+from pip._internal.utils.egg_link import egg_link_path_from_location
+from pip._internal.utils.virtualenv import running_under_virtualenv
+
+__all__ = [
+    "rmtree",
+    "display_path",
+    "backup_dir",
+    "ask",
+    "splitext",
+    "format_size",
+    "is_installable_dir",
+    "normalize_path",
+    "renames",
+    "get_prog",
+    "captured_stdout",
+    "ensure_dir",
+    "remove_auth_from_url",
+]
+
+
+logger = logging.getLogger(__name__)
+
+T = TypeVar("T")
+ExcInfo = Tuple[Type[BaseException], BaseException, TracebackType]
+VersionInfo = Tuple[int, int, int]
+NetlocTuple = Tuple[str, Tuple[Optional[str], Optional[str]]]
+
+
+def get_pip_version() -> str:
+    pip_pkg_dir = os.path.join(os.path.dirname(__file__), "..", "..")
+    pip_pkg_dir = os.path.abspath(pip_pkg_dir)
+
+    return "pip {} from {} (python {})".format(
+        __version__,
+        pip_pkg_dir,
+        get_major_minor_version(),
+    )
+
+
+def normalize_version_info(py_version_info: Tuple[int, ...]) -> Tuple[int, int, int]:
+    """
+    Convert a tuple of ints representing a Python version to one of length
+    three.
+
+    :param py_version_info: a tuple of ints representing a Python version,
+        or None to specify no version. The tuple can have any length.
+
+    :return: a tuple of length three if `py_version_info` is non-None.
+        Otherwise, return `py_version_info` unchanged (i.e. None).
+    """
+    if len(py_version_info) < 3:
+        py_version_info += (3 - len(py_version_info)) * (0,)
+    elif len(py_version_info) > 3:
+        py_version_info = py_version_info[:3]
+
+    return cast("VersionInfo", py_version_info)
+
+
+def ensure_dir(path: str) -> None:
+    """os.path.makedirs without EEXIST."""
+    try:
+        os.makedirs(path)
+    except OSError as e:
+        # Windows can raise spurious ENOTEMPTY errors. See #6426.
+        if e.errno != errno.EEXIST and e.errno != errno.ENOTEMPTY:
+            raise
+
+
+def get_prog() -> str:
+    try:
+        prog = os.path.basename(sys.argv[0])
+        if prog in ("__main__.py", "-c"):
+            return f"{sys.executable} -m pip"
+        else:
+            return prog
+    except (AttributeError, TypeError, IndexError):
+        pass
+    return "pip"
+
+
+# Retry every half second for up to 3 seconds
+# Tenacity raises RetryError by default, explicitly raise the original exception
+@retry(reraise=True, stop=stop_after_delay(3), wait=wait_fixed(0.5))
+def rmtree(dir: str, ignore_errors: bool = False) -> None:
+    shutil.rmtree(dir, ignore_errors=ignore_errors, onerror=rmtree_errorhandler)
+
+
+def rmtree_errorhandler(func: Callable[..., Any], path: str, exc_info: ExcInfo) -> None:
+    """On Windows, the files in .svn are read-only, so when rmtree() tries to
+    remove them, an exception is thrown.  We catch that here, remove the
+    read-only attribute, and hopefully continue without problems."""
+    try:
+        has_attr_readonly = not (os.stat(path).st_mode & stat.S_IWRITE)
+    except OSError:
+        # it's equivalent to os.path.exists
+        return
+
+    if has_attr_readonly:
+        # convert to read/write
+        os.chmod(path, stat.S_IWRITE)
+        # use the original function to repeat the operation
+        func(path)
+        return
+    else:
+        raise
+
+
+def display_path(path: str) -> str:
+    """Gives the display value for a given path, making it relative to cwd
+    if possible."""
+    path = os.path.normcase(os.path.abspath(path))
+    if path.startswith(os.getcwd() + os.path.sep):
+        path = "." + path[len(os.getcwd()) :]
+    return path
+
+
+def backup_dir(dir: str, ext: str = ".bak") -> str:
+    """Figure out the name of a directory to back up the given dir to
+    (adding .bak, .bak2, etc)"""
+    n = 1
+    extension = ext
+    while os.path.exists(dir + extension):
+        n += 1
+        extension = ext + str(n)
+    return dir + extension
+
+
+def ask_path_exists(message: str, options: Iterable[str]) -> str:
+    for action in os.environ.get("PIP_EXISTS_ACTION", "").split():
+        if action in options:
+            return action
+    return ask(message, options)
+
+
+def _check_no_input(message: str) -> None:
+    """Raise an error if no input is allowed."""
+    if os.environ.get("PIP_NO_INPUT"):
+        raise Exception(
+            f"No input was expected ($PIP_NO_INPUT set); question: {message}"
+        )
+
+
+def ask(message: str, options: Iterable[str]) -> str:
+    """Ask the message interactively, with the given possible responses"""
+    while 1:
+        _check_no_input(message)
+        response = input(message)
+        response = response.strip().lower()
+        if response not in options:
+            print(
+                "Your response ({!r}) was not one of the expected responses: "
+                "{}".format(response, ", ".join(options))
+            )
+        else:
+            return response
+
+
+def ask_input(message: str) -> str:
+    """Ask for input interactively."""
+    _check_no_input(message)
+    return input(message)
+
+
+def ask_password(message: str) -> str:
+    """Ask for a password interactively."""
+    _check_no_input(message)
+    return getpass.getpass(message)
+
+
+def strtobool(val: str) -> int:
+    """Convert a string representation of truth to true (1) or false (0).
+
+    True values are 'y', 'yes', 't', 'true', 'on', and '1'; false values
+    are 'n', 'no', 'f', 'false', 'off', and '0'.  Raises ValueError if
+    'val' is anything else.
+    """
+    val = val.lower()
+    if val in ("y", "yes", "t", "true", "on", "1"):
+        return 1
+    elif val in ("n", "no", "f", "false", "off", "0"):
+        return 0
+    else:
+        raise ValueError(f"invalid truth value {val!r}")
+
+
+def format_size(bytes: float) -> str:
+    if bytes > 1000 * 1000:
+        return "{:.1f} MB".format(bytes / 1000.0 / 1000)
+    elif bytes > 10 * 1000:
+        return "{} kB".format(int(bytes / 1000))
+    elif bytes > 1000:
+        return "{:.1f} kB".format(bytes / 1000.0)
+    else:
+        return "{} bytes".format(int(bytes))
+
+
+def tabulate(rows: Iterable[Iterable[Any]]) -> Tuple[List[str], List[int]]:
+    """Return a list of formatted rows and a list of column sizes.
+
+    For example::
+
+    >>> tabulate([['foobar', 2000], [0xdeadbeef]])
+    (['foobar     2000', '3735928559'], [10, 4])
+    """
+    rows = [tuple(map(str, row)) for row in rows]
+    sizes = [max(map(len, col)) for col in zip_longest(*rows, fillvalue="")]
+    table = [" ".join(map(str.ljust, row, sizes)).rstrip() for row in rows]
+    return table, sizes
+
+
+def is_installable_dir(path: str) -> bool:
+    """Is path is a directory containing pyproject.toml or setup.py?
+
+    If pyproject.toml exists, this is a PEP 517 project. Otherwise we look for
+    a legacy setuptools layout by identifying setup.py. We don't check for the
+    setup.cfg because using it without setup.py is only available for PEP 517
+    projects, which are already covered by the pyproject.toml check.
+    """
+    if not os.path.isdir(path):
+        return False
+    if os.path.isfile(os.path.join(path, "pyproject.toml")):
+        return True
+    if os.path.isfile(os.path.join(path, "setup.py")):
+        return True
+    return False
+
+
+def read_chunks(file: BinaryIO, size: int = io.DEFAULT_BUFFER_SIZE) -> Iterator[bytes]:
+    """Yield pieces of data from a file-like object until EOF."""
+    while True:
+        chunk = file.read(size)
+        if not chunk:
+            break
+        yield chunk
+
+
+def normalize_path(path: str, resolve_symlinks: bool = True) -> str:
+    """
+    Convert a path to its canonical, case-normalized, absolute version.
+
+    """
+    path = os.path.expanduser(path)
+    if resolve_symlinks:
+        path = os.path.realpath(path)
+    else:
+        path = os.path.abspath(path)
+    return os.path.normcase(path)
+
+
+def splitext(path: str) -> Tuple[str, str]:
+    """Like os.path.splitext, but take off .tar too"""
+    base, ext = posixpath.splitext(path)
+    if base.lower().endswith(".tar"):
+        ext = base[-4:] + ext
+        base = base[:-4]
+    return base, ext
+
+
+def renames(old: str, new: str) -> None:
+    """Like os.renames(), but handles renaming across devices."""
+    # Implementation borrowed from os.renames().
+    head, tail = os.path.split(new)
+    if head and tail and not os.path.exists(head):
+        os.makedirs(head)
+
+    shutil.move(old, new)
+
+    head, tail = os.path.split(old)
+    if head and tail:
+        try:
+            os.removedirs(head)
+        except OSError:
+            pass
+
+
+def is_local(path: str) -> bool:
+    """
+    Return True if path is within sys.prefix, if we're running in a virtualenv.
+
+    If we're not in a virtualenv, all paths are considered "local."
+
+    Caution: this function assumes the head of path has been normalized
+    with normalize_path.
+    """
+    if not running_under_virtualenv():
+        return True
+    return path.startswith(normalize_path(sys.prefix))
+
+
+def dist_is_local(dist: Distribution) -> bool:
+    """
+    Return True if given Distribution object is installed locally
+    (i.e. within current virtualenv).
+
+    Always True if we're not in a virtualenv.
+
+    """
+    return is_local(dist_location(dist))
+
+
+def dist_in_usersite(dist: Distribution) -> bool:
+    """
+    Return True if given Distribution is installed in user site.
+    """
+    return dist_location(dist).startswith(normalize_path(user_site))
+
+
+def dist_in_site_packages(dist: Distribution) -> bool:
+    """
+    Return True if given Distribution is installed in
+    sysconfig.get_python_lib().
+    """
+    return dist_location(dist).startswith(normalize_path(site_packages))
+
+
+def get_distribution(req_name: str) -> Optional[Distribution]:
+    """Given a requirement name, return the installed Distribution object.
+
+    This searches from *all* distributions available in the environment, to
+    match the behavior of ``pkg_resources.get_distribution()``.
+
+    Left for compatibility until direct pkg_resources uses are refactored out.
+    """
+    from pip._internal.metadata import get_default_environment
+    from pip._internal.metadata.pkg_resources import Distribution as _Dist
+
+    dist = get_default_environment().get_distribution(req_name)
+    if dist is None:
+        return None
+    return cast(_Dist, dist)._dist
+
+
+def dist_location(dist: Distribution) -> str:
+    """
+    Get the site-packages location of this distribution. Generally
+    this is dist.location, except in the case of develop-installed
+    packages, where dist.location is the source code location, and we
+    want to know where the egg-link file is.
+
+    The returned location is normalized (in particular, with symlinks removed).
+    """
+    egg_link = egg_link_path_from_location(dist.project_name)
+    if egg_link:
+        return normalize_path(egg_link)
+    return normalize_path(dist.location)
+
+
+def write_output(msg: Any, *args: Any) -> None:
+    logger.info(msg, *args)
+
+
+class StreamWrapper(StringIO):
+    orig_stream: TextIO = None
+
+    @classmethod
+    def from_stream(cls, orig_stream: TextIO) -> "StreamWrapper":
+        cls.orig_stream = orig_stream
+        return cls()
+
+    # compileall.compile_dir() needs stdout.encoding to print to stdout
+    # https://github.com/python/mypy/issues/4125
+    @property
+    def encoding(self):  # type: ignore
+        return self.orig_stream.encoding
+
+
+@contextlib.contextmanager
+def captured_output(stream_name: str) -> Iterator[StreamWrapper]:
+    """Return a context manager used by captured_stdout/stdin/stderr
+    that temporarily replaces the sys stream *stream_name* with a StringIO.
+
+    Taken from Lib/support/__init__.py in the CPython repo.
+    """
+    orig_stdout = getattr(sys, stream_name)
+    setattr(sys, stream_name, StreamWrapper.from_stream(orig_stdout))
+    try:
+        yield getattr(sys, stream_name)
+    finally:
+        setattr(sys, stream_name, orig_stdout)
+
+
+def captured_stdout() -> ContextManager[StreamWrapper]:
+    """Capture the output of sys.stdout:
+
+       with captured_stdout() as stdout:
+           print('hello')
+       self.assertEqual(stdout.getvalue(), 'hello\n')
+
+    Taken from Lib/support/__init__.py in the CPython repo.
+    """
+    return captured_output("stdout")
+
+
+def captured_stderr() -> ContextManager[StreamWrapper]:
+    """
+    See captured_stdout().
+    """
+    return captured_output("stderr")
+
+
+# Simulates an enum
+def enum(*sequential: Any, **named: Any) -> Type[Any]:
+    enums = dict(zip(sequential, range(len(sequential))), **named)
+    reverse = {value: key for key, value in enums.items()}
+    enums["reverse_mapping"] = reverse
+    return type("Enum", (), enums)
+
+
+def build_netloc(host: str, port: Optional[int]) -> str:
+    """
+    Build a netloc from a host-port pair
+    """
+    if port is None:
+        return host
+    if ":" in host:
+        # Only wrap host with square brackets when it is IPv6
+        host = f"[{host}]"
+    return f"{host}:{port}"
+
+
+def build_url_from_netloc(netloc: str, scheme: str = "https") -> str:
+    """
+    Build a full URL from a netloc.
+    """
+    if netloc.count(":") >= 2 and "@" not in netloc and "[" not in netloc:
+        # It must be a bare IPv6 address, so wrap it with brackets.
+        netloc = f"[{netloc}]"
+    return f"{scheme}://{netloc}"
+
+
+def parse_netloc(netloc: str) -> Tuple[str, Optional[int]]:
+    """
+    Return the host-port pair from a netloc.
+    """
+    url = build_url_from_netloc(netloc)
+    parsed = urllib.parse.urlparse(url)
+    return parsed.hostname, parsed.port
+
+
+def split_auth_from_netloc(netloc: str) -> NetlocTuple:
+    """
+    Parse out and remove the auth information from a netloc.
+
+    Returns: (netloc, (username, password)).
+    """
+    if "@" not in netloc:
+        return netloc, (None, None)
+
+    # Split from the right because that's how urllib.parse.urlsplit()
+    # behaves if more than one @ is present (which can be checked using
+    # the password attribute of urlsplit()'s return value).
+    auth, netloc = netloc.rsplit("@", 1)
+    pw: Optional[str] = None
+    if ":" in auth:
+        # Split from the left because that's how urllib.parse.urlsplit()
+        # behaves if more than one : is present (which again can be checked
+        # using the password attribute of the return value)
+        user, pw = auth.split(":", 1)
+    else:
+        user, pw = auth, None
+
+    user = urllib.parse.unquote(user)
+    if pw is not None:
+        pw = urllib.parse.unquote(pw)
+
+    return netloc, (user, pw)
+
+
+def redact_netloc(netloc: str) -> str:
+    """
+    Replace the sensitive data in a netloc with "****", if it exists.
+
+    For example:
+        - "user:pass@example.com" returns "user:****@example.com"
+        - "accesstoken@example.com" returns "****@example.com"
+    """
+    netloc, (user, password) = split_auth_from_netloc(netloc)
+    if user is None:
+        return netloc
+    if password is None:
+        user = "****"
+        password = ""
+    else:
+        user = urllib.parse.quote(user)
+        password = ":****"
+    return "{user}{password}@{netloc}".format(
+        user=user, password=password, netloc=netloc
+    )
+
+
+def _transform_url(
+    url: str, transform_netloc: Callable[[str], Tuple[Any, ...]]
+) -> Tuple[str, NetlocTuple]:
+    """Transform and replace netloc in a url.
+
+    transform_netloc is a function taking the netloc and returning a
+    tuple. The first element of this tuple is the new netloc. The
+    entire tuple is returned.
+
+    Returns a tuple containing the transformed url as item 0 and the
+    original tuple returned by transform_netloc as item 1.
+    """
+    purl = urllib.parse.urlsplit(url)
+    netloc_tuple = transform_netloc(purl.netloc)
+    # stripped url
+    url_pieces = (purl.scheme, netloc_tuple[0], purl.path, purl.query, purl.fragment)
+    surl = urllib.parse.urlunsplit(url_pieces)
+    return surl, cast("NetlocTuple", netloc_tuple)
+
+
+def _get_netloc(netloc: str) -> NetlocTuple:
+    return split_auth_from_netloc(netloc)
+
+
+def _redact_netloc(netloc: str) -> Tuple[str]:
+    return (redact_netloc(netloc),)
+
+
+def split_auth_netloc_from_url(url: str) -> Tuple[str, str, Tuple[str, str]]:
+    """
+    Parse a url into separate netloc, auth, and url with no auth.
+
+    Returns: (url_without_auth, netloc, (username, password))
+    """
+    url_without_auth, (netloc, auth) = _transform_url(url, _get_netloc)
+    return url_without_auth, netloc, auth
+
+
+def remove_auth_from_url(url: str) -> str:
+    """Return a copy of url with 'username:password@' removed."""
+    # username/pass params are passed to subversion through flags
+    # and are not recognized in the url.
+    return _transform_url(url, _get_netloc)[0]
+
+
+def redact_auth_from_url(url: str) -> str:
+    """Replace the password in a given url with ****."""
+    return _transform_url(url, _redact_netloc)[0]
+
+
+class HiddenText:
+    def __init__(self, secret: str, redacted: str) -> None:
+        self.secret = secret
+        self.redacted = redacted
+
+    def __repr__(self) -> str:
+        return "".format(str(self))
+
+    def __str__(self) -> str:
+        return self.redacted
+
+    # This is useful for testing.
+    def __eq__(self, other: Any) -> bool:
+        if type(self) != type(other):
+            return False
+
+        # The string being used for redaction doesn't also have to match,
+        # just the raw, original string.
+        return self.secret == other.secret
+
+
+def hide_value(value: str) -> HiddenText:
+    return HiddenText(value, redacted="****")
+
+
+def hide_url(url: str) -> HiddenText:
+    redacted = redact_auth_from_url(url)
+    return HiddenText(url, redacted=redacted)
+
+
+def protect_pip_from_modification_on_windows(modifying_pip: bool) -> None:
+    """Protection of pip.exe from modification on Windows
+
+    On Windows, any operation modifying pip should be run as:
+        python -m pip ...
+    """
+    pip_names = [
+        "pip.exe",
+        "pip{}.exe".format(sys.version_info[0]),
+        "pip{}.{}.exe".format(*sys.version_info[:2]),
+    ]
+
+    # See https://github.com/pypa/pip/issues/1299 for more discussion
+    should_show_use_python_msg = (
+        modifying_pip and WINDOWS and os.path.basename(sys.argv[0]) in pip_names
+    )
+
+    if should_show_use_python_msg:
+        new_command = [sys.executable, "-m", "pip"] + sys.argv[1:]
+        raise CommandError(
+            "To modify pip, please run the following command:\n{}".format(
+                " ".join(new_command)
+            )
+        )
+
+
+def is_console_interactive() -> bool:
+    """Is this console interactive?"""
+    return sys.stdin is not None and sys.stdin.isatty()
+
+
+def hash_file(path: str, blocksize: int = 1 << 20) -> Tuple[Any, int]:
+    """Return (hash, length) for path using hashlib.sha256()"""
+
+    h = hashlib.sha256()
+    length = 0
+    with open(path, "rb") as f:
+        for block in read_chunks(f, size=blocksize):
+            length += len(block)
+            h.update(block)
+    return h, length
+
+
+def is_wheel_installed() -> bool:
+    """
+    Return whether the wheel package is installed.
+    """
+    try:
+        import wheel  # noqa: F401
+    except ImportError:
+        return False
+
+    return True
+
+
+def pairwise(iterable: Iterable[Any]) -> Iterator[Tuple[Any, Any]]:
+    """
+    Return paired elements.
+
+    For example:
+        s -> (s0, s1), (s2, s3), (s4, s5), ...
+    """
+    iterable = iter(iterable)
+    return zip_longest(iterable, iterable)
+
+
+def partition(
+    pred: Callable[[T], bool],
+    iterable: Iterable[T],
+) -> Tuple[Iterable[T], Iterable[T]]:
+    """
+    Use a predicate to partition entries into false entries and true entries,
+    like
+
+        partition(is_odd, range(10)) --> 0 2 4 6 8   and  1 3 5 7 9
+    """
+    t1, t2 = tee(iterable)
+    return filterfalse(pred, t1), filter(pred, t2)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/models.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/models.py
new file mode 100644
index 0000000..b6bb21a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/models.py
@@ -0,0 +1,39 @@
+"""Utilities for defining models
+"""
+
+import operator
+from typing import Any, Callable, Type
+
+
+class KeyBasedCompareMixin:
+    """Provides comparison capabilities that is based on a key"""
+
+    __slots__ = ["_compare_key", "_defining_class"]
+
+    def __init__(self, key: Any, defining_class: Type["KeyBasedCompareMixin"]) -> None:
+        self._compare_key = key
+        self._defining_class = defining_class
+
+    def __hash__(self) -> int:
+        return hash(self._compare_key)
+
+    def __lt__(self, other: Any) -> bool:
+        return self._compare(other, operator.__lt__)
+
+    def __le__(self, other: Any) -> bool:
+        return self._compare(other, operator.__le__)
+
+    def __gt__(self, other: Any) -> bool:
+        return self._compare(other, operator.__gt__)
+
+    def __ge__(self, other: Any) -> bool:
+        return self._compare(other, operator.__ge__)
+
+    def __eq__(self, other: Any) -> bool:
+        return self._compare(other, operator.__eq__)
+
+    def _compare(self, other: Any, method: Callable[[Any, Any], bool]) -> bool:
+        if not isinstance(other, self._defining_class):
+            return NotImplemented
+
+        return method(self._compare_key, other._compare_key)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/packaging.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/packaging.py
new file mode 100644
index 0000000..f100473
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/packaging.py
@@ -0,0 +1,84 @@
+import functools
+import logging
+from email.message import Message
+from email.parser import FeedParser
+from typing import Optional, Tuple
+
+from pip._vendor import pkg_resources
+from pip._vendor.packaging import specifiers, version
+from pip._vendor.packaging.requirements import Requirement
+from pip._vendor.pkg_resources import Distribution
+
+from pip._internal.exceptions import NoneMetadataError
+from pip._internal.utils.misc import display_path
+
+logger = logging.getLogger(__name__)
+
+
+def check_requires_python(
+    requires_python: Optional[str], version_info: Tuple[int, ...]
+) -> bool:
+    """
+    Check if the given Python version matches a "Requires-Python" specifier.
+
+    :param version_info: A 3-tuple of ints representing a Python
+        major-minor-micro version to check (e.g. `sys.version_info[:3]`).
+
+    :return: `True` if the given Python version satisfies the requirement.
+        Otherwise, return `False`.
+
+    :raises InvalidSpecifier: If `requires_python` has an invalid format.
+    """
+    if requires_python is None:
+        # The package provides no information
+        return True
+    requires_python_specifier = specifiers.SpecifierSet(requires_python)
+
+    python_version = version.parse(".".join(map(str, version_info)))
+    return python_version in requires_python_specifier
+
+
+def get_metadata(dist: Distribution) -> Message:
+    """
+    :raises NoneMetadataError: if the distribution reports `has_metadata()`
+        True but `get_metadata()` returns None.
+    """
+    metadata_name = "METADATA"
+    if isinstance(dist, pkg_resources.DistInfoDistribution) and dist.has_metadata(
+        metadata_name
+    ):
+        metadata = dist.get_metadata(metadata_name)
+    elif dist.has_metadata("PKG-INFO"):
+        metadata_name = "PKG-INFO"
+        metadata = dist.get_metadata(metadata_name)
+    else:
+        logger.warning("No metadata found in %s", display_path(dist.location))
+        metadata = ""
+
+    if metadata is None:
+        raise NoneMetadataError(dist, metadata_name)
+
+    feed_parser = FeedParser()
+    # The following line errors out if with a "NoneType" TypeError if
+    # passed metadata=None.
+    feed_parser.feed(metadata)
+    return feed_parser.close()
+
+
+def get_installer(dist: Distribution) -> str:
+    if dist.has_metadata("INSTALLER"):
+        for line in dist.get_metadata_lines("INSTALLER"):
+            if line.strip():
+                return line.strip()
+    return ""
+
+
+@functools.lru_cache(maxsize=512)
+def get_requirement(req_string: str) -> Requirement:
+    """Construct a packaging.Requirement object with caching"""
+    # Parsing requirement strings is expensive, and is also expected to happen
+    # with a low diversity of different arguments (at least relative the number
+    # constructed). This method adds a cache to requirement object creation to
+    # minimize repeated parsing of the same string to construct equivalent
+    # Requirement objects.
+    return Requirement(req_string)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/parallel.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/parallel.py
new file mode 100644
index 0000000..e318577
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/parallel.py
@@ -0,0 +1,103 @@
+"""Convenient parallelization of higher order functions.
+
+This module provides two helper functions, with appropriate fallbacks on
+Python 2 and on systems lacking support for synchronization mechanisms:
+
+- map_multiprocess
+- map_multithread
+
+These helpers work like Python 3's map, with two differences:
+
+- They don't guarantee the order of processing of
+  the elements of the iterable.
+- The underlying process/thread pools chop the iterable into
+  a number of chunks, so that for very long iterables using
+  a large value for chunksize can make the job complete much faster
+  than using the default value of 1.
+"""
+
+__all__ = ["map_multiprocess", "map_multithread"]
+
+from contextlib import contextmanager
+from multiprocessing import Pool as ProcessPool
+from multiprocessing import pool
+from multiprocessing.dummy import Pool as ThreadPool
+from typing import Callable, Iterable, Iterator, TypeVar, Union
+
+from pip._vendor.requests.adapters import DEFAULT_POOLSIZE
+
+Pool = Union[pool.Pool, pool.ThreadPool]
+S = TypeVar("S")
+T = TypeVar("T")
+
+# On platforms without sem_open, multiprocessing[.dummy] Pool
+# cannot be created.
+try:
+    import multiprocessing.synchronize  # noqa
+except ImportError:
+    LACK_SEM_OPEN = True
+else:
+    LACK_SEM_OPEN = False
+
+# Incredibly large timeout to work around bpo-8296 on Python 2.
+TIMEOUT = 2000000
+
+
+@contextmanager
+def closing(pool: Pool) -> Iterator[Pool]:
+    """Return a context manager making sure the pool closes properly."""
+    try:
+        yield pool
+    finally:
+        # For Pool.imap*, close and join are needed
+        # for the returned iterator to begin yielding.
+        pool.close()
+        pool.join()
+        pool.terminate()
+
+
+def _map_fallback(
+    func: Callable[[S], T], iterable: Iterable[S], chunksize: int = 1
+) -> Iterator[T]:
+    """Make an iterator applying func to each element in iterable.
+
+    This function is the sequential fallback either on Python 2
+    where Pool.imap* doesn't react to KeyboardInterrupt
+    or when sem_open is unavailable.
+    """
+    return map(func, iterable)
+
+
+def _map_multiprocess(
+    func: Callable[[S], T], iterable: Iterable[S], chunksize: int = 1
+) -> Iterator[T]:
+    """Chop iterable into chunks and submit them to a process pool.
+
+    For very long iterables using a large value for chunksize can make
+    the job complete much faster than using the default value of 1.
+
+    Return an unordered iterator of the results.
+    """
+    with closing(ProcessPool()) as pool:
+        return pool.imap_unordered(func, iterable, chunksize)
+
+
+def _map_multithread(
+    func: Callable[[S], T], iterable: Iterable[S], chunksize: int = 1
+) -> Iterator[T]:
+    """Chop iterable into chunks and submit them to a thread pool.
+
+    For very long iterables using a large value for chunksize can make
+    the job complete much faster than using the default value of 1.
+
+    Return an unordered iterator of the results.
+    """
+    with closing(ThreadPool(DEFAULT_POOLSIZE)) as pool:
+        return pool.imap_unordered(func, iterable, chunksize)
+
+
+if LACK_SEM_OPEN:
+    map_multiprocess = map_multithread = _map_fallback
+else:
+    map_multiprocess = _map_multiprocess
+    map_multithread = _map_multithread
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/pkg_resources.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/pkg_resources.py
new file mode 100644
index 0000000..bd846aa
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/pkg_resources.py
@@ -0,0 +1,33 @@
+from typing import Dict, Iterable, List
+
+from pip._vendor.pkg_resources import yield_lines
+
+
+class DictMetadata:
+    """IMetadataProvider that reads metadata files from a dictionary."""
+
+    def __init__(self, metadata: Dict[str, bytes]) -> None:
+        self._metadata = metadata
+
+    def has_metadata(self, name: str) -> bool:
+        return name in self._metadata
+
+    def get_metadata(self, name: str) -> str:
+        try:
+            return self._metadata[name].decode()
+        except UnicodeDecodeError as e:
+            # Mirrors handling done in pkg_resources.NullProvider.
+            e.reason += f" in {name} file"
+            raise
+
+    def get_metadata_lines(self, name: str) -> Iterable[str]:
+        return yield_lines(self.get_metadata(name))
+
+    def metadata_isdir(self, name: str) -> bool:
+        return False
+
+    def metadata_listdir(self, name: str) -> List[str]:
+        return []
+
+    def run_script(self, script_name: str, namespace: str) -> None:
+        pass
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/setuptools_build.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/setuptools_build.py
new file mode 100644
index 0000000..9d65ceb
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/setuptools_build.py
@@ -0,0 +1,167 @@
+import sys
+from typing import List, Optional, Sequence
+
+# Shim to wrap setup.py invocation with setuptools
+#
+# We set sys.argv[0] to the path to the underlying setup.py file so
+# setuptools / distutils don't take the path to the setup.py to be "-c" when
+# invoking via the shim.  This avoids e.g. the following manifest_maker
+# warning: "warning: manifest_maker: standard file '-c' not found".
+_SETUPTOOLS_SHIM = (
+    "import io, os, sys, setuptools, tokenize; sys.argv[0] = {0!r}; __file__={0!r};"
+    "f = getattr(tokenize, 'open', open)(__file__) "
+    "if os.path.exists(__file__) "
+    "else io.StringIO('from setuptools import setup; setup()');"
+    "code = f.read().replace('\\r\\n', '\\n');"
+    "f.close();"
+    "exec(compile(code, __file__, 'exec'))"
+)
+
+
+def make_setuptools_shim_args(
+    setup_py_path: str,
+    global_options: Sequence[str] = None,
+    no_user_config: bool = False,
+    unbuffered_output: bool = False,
+) -> List[str]:
+    """
+    Get setuptools command arguments with shim wrapped setup file invocation.
+
+    :param setup_py_path: The path to setup.py to be wrapped.
+    :param global_options: Additional global options.
+    :param no_user_config: If True, disables personal user configuration.
+    :param unbuffered_output: If True, adds the unbuffered switch to the
+     argument list.
+    """
+    args = [sys.executable]
+    if unbuffered_output:
+        args += ["-u"]
+    args += ["-c", _SETUPTOOLS_SHIM.format(setup_py_path)]
+    if global_options:
+        args += global_options
+    if no_user_config:
+        args += ["--no-user-cfg"]
+    return args
+
+
+def make_setuptools_bdist_wheel_args(
+    setup_py_path: str,
+    global_options: Sequence[str],
+    build_options: Sequence[str],
+    destination_dir: str,
+) -> List[str]:
+    # NOTE: Eventually, we'd want to also -S to the flags here, when we're
+    # isolating. Currently, it breaks Python in virtualenvs, because it
+    # relies on site.py to find parts of the standard library outside the
+    # virtualenv.
+    args = make_setuptools_shim_args(
+        setup_py_path, global_options=global_options, unbuffered_output=True
+    )
+    args += ["bdist_wheel", "-d", destination_dir]
+    args += build_options
+    return args
+
+
+def make_setuptools_clean_args(
+    setup_py_path: str,
+    global_options: Sequence[str],
+) -> List[str]:
+    args = make_setuptools_shim_args(
+        setup_py_path, global_options=global_options, unbuffered_output=True
+    )
+    args += ["clean", "--all"]
+    return args
+
+
+def make_setuptools_develop_args(
+    setup_py_path: str,
+    global_options: Sequence[str],
+    install_options: Sequence[str],
+    no_user_config: bool,
+    prefix: Optional[str],
+    home: Optional[str],
+    use_user_site: bool,
+) -> List[str]:
+    assert not (use_user_site and prefix)
+
+    args = make_setuptools_shim_args(
+        setup_py_path,
+        global_options=global_options,
+        no_user_config=no_user_config,
+    )
+
+    args += ["develop", "--no-deps"]
+
+    args += install_options
+
+    if prefix:
+        args += ["--prefix", prefix]
+    if home is not None:
+        args += ["--install-dir", home]
+
+    if use_user_site:
+        args += ["--user", "--prefix="]
+
+    return args
+
+
+def make_setuptools_egg_info_args(
+    setup_py_path: str,
+    egg_info_dir: Optional[str],
+    no_user_config: bool,
+) -> List[str]:
+    args = make_setuptools_shim_args(setup_py_path, no_user_config=no_user_config)
+
+    args += ["egg_info"]
+
+    if egg_info_dir:
+        args += ["--egg-base", egg_info_dir]
+
+    return args
+
+
+def make_setuptools_install_args(
+    setup_py_path: str,
+    global_options: Sequence[str],
+    install_options: Sequence[str],
+    record_filename: str,
+    root: Optional[str],
+    prefix: Optional[str],
+    header_dir: Optional[str],
+    home: Optional[str],
+    use_user_site: bool,
+    no_user_config: bool,
+    pycompile: bool,
+) -> List[str]:
+    assert not (use_user_site and prefix)
+    assert not (use_user_site and root)
+
+    args = make_setuptools_shim_args(
+        setup_py_path,
+        global_options=global_options,
+        no_user_config=no_user_config,
+        unbuffered_output=True,
+    )
+    args += ["install", "--record", record_filename]
+    args += ["--single-version-externally-managed"]
+
+    if root is not None:
+        args += ["--root", root]
+    if prefix is not None:
+        args += ["--prefix", prefix]
+    if home is not None:
+        args += ["--home", home]
+    if use_user_site:
+        args += ["--user", "--prefix="]
+
+    if pycompile:
+        args += ["--compile"]
+    else:
+        args += ["--no-compile"]
+
+    if header_dir:
+        args += ["--install-headers", header_dir]
+
+    args += install_options
+
+    return args
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/subprocess.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/subprocess.py
new file mode 100644
index 0000000..f6e8b21
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/subprocess.py
@@ -0,0 +1,289 @@
+import logging
+import os
+import shlex
+import subprocess
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Callable,
+    Iterable,
+    List,
+    Mapping,
+    Optional,
+    Union,
+)
+
+from pip._internal.cli.spinners import SpinnerInterface, open_spinner
+from pip._internal.exceptions import InstallationSubprocessError
+from pip._internal.utils.logging import VERBOSE, subprocess_logger
+from pip._internal.utils.misc import HiddenText
+
+if TYPE_CHECKING:
+    # Literal was introduced in Python 3.8.
+    #
+    # TODO: Remove `if TYPE_CHECKING` when dropping support for Python 3.7.
+    from typing import Literal
+
+CommandArgs = List[Union[str, HiddenText]]
+
+
+LOG_DIVIDER = "----------------------------------------"
+
+
+def make_command(*args: Union[str, HiddenText, CommandArgs]) -> CommandArgs:
+    """
+    Create a CommandArgs object.
+    """
+    command_args: CommandArgs = []
+    for arg in args:
+        # Check for list instead of CommandArgs since CommandArgs is
+        # only known during type-checking.
+        if isinstance(arg, list):
+            command_args.extend(arg)
+        else:
+            # Otherwise, arg is str or HiddenText.
+            command_args.append(arg)
+
+    return command_args
+
+
+def format_command_args(args: Union[List[str], CommandArgs]) -> str:
+    """
+    Format command arguments for display.
+    """
+    # For HiddenText arguments, display the redacted form by calling str().
+    # Also, we don't apply str() to arguments that aren't HiddenText since
+    # this can trigger a UnicodeDecodeError in Python 2 if the argument
+    # has type unicode and includes a non-ascii character.  (The type
+    # checker doesn't ensure the annotations are correct in all cases.)
+    return " ".join(
+        shlex.quote(str(arg)) if isinstance(arg, HiddenText) else shlex.quote(arg)
+        for arg in args
+    )
+
+
+def reveal_command_args(args: Union[List[str], CommandArgs]) -> List[str]:
+    """
+    Return the arguments in their raw, unredacted form.
+    """
+    return [arg.secret if isinstance(arg, HiddenText) else arg for arg in args]
+
+
+def make_subprocess_output_error(
+    cmd_args: Union[List[str], CommandArgs],
+    cwd: Optional[str],
+    lines: List[str],
+    exit_status: int,
+) -> str:
+    """
+    Create and return the error message to use to log a subprocess error
+    with command output.
+
+    :param lines: A list of lines, each ending with a newline.
+    """
+    command = format_command_args(cmd_args)
+
+    # We know the joined output value ends in a newline.
+    output = "".join(lines)
+    msg = (
+        # Use a unicode string to avoid "UnicodeEncodeError: 'ascii'
+        # codec can't encode character ..." in Python 2 when a format
+        # argument (e.g. `output`) has a non-ascii character.
+        "Command errored out with exit status {exit_status}:\n"
+        " command: {command_display}\n"
+        "     cwd: {cwd_display}\n"
+        "Complete output ({line_count} lines):\n{output}{divider}"
+    ).format(
+        exit_status=exit_status,
+        command_display=command,
+        cwd_display=cwd,
+        line_count=len(lines),
+        output=output,
+        divider=LOG_DIVIDER,
+    )
+    return msg
+
+
+def call_subprocess(
+    cmd: Union[List[str], CommandArgs],
+    show_stdout: bool = False,
+    cwd: Optional[str] = None,
+    on_returncode: 'Literal["raise", "warn", "ignore"]' = "raise",
+    extra_ok_returncodes: Optional[Iterable[int]] = None,
+    command_desc: Optional[str] = None,
+    extra_environ: Optional[Mapping[str, Any]] = None,
+    unset_environ: Optional[Iterable[str]] = None,
+    spinner: Optional[SpinnerInterface] = None,
+    log_failed_cmd: Optional[bool] = True,
+    stdout_only: Optional[bool] = False,
+) -> str:
+    """
+    Args:
+      show_stdout: if true, use INFO to log the subprocess's stderr and
+        stdout streams.  Otherwise, use DEBUG.  Defaults to False.
+      extra_ok_returncodes: an iterable of integer return codes that are
+        acceptable, in addition to 0. Defaults to None, which means [].
+      unset_environ: an iterable of environment variable names to unset
+        prior to calling subprocess.Popen().
+      log_failed_cmd: if false, failed commands are not logged, only raised.
+      stdout_only: if true, return only stdout, else return both. When true,
+        logging of both stdout and stderr occurs when the subprocess has
+        terminated, else logging occurs as subprocess output is produced.
+    """
+    if extra_ok_returncodes is None:
+        extra_ok_returncodes = []
+    if unset_environ is None:
+        unset_environ = []
+    # Most places in pip use show_stdout=False. What this means is--
+    #
+    # - We connect the child's output (combined stderr and stdout) to a
+    #   single pipe, which we read.
+    # - We log this output to stderr at DEBUG level as it is received.
+    # - If DEBUG logging isn't enabled (e.g. if --verbose logging wasn't
+    #   requested), then we show a spinner so the user can still see the
+    #   subprocess is in progress.
+    # - If the subprocess exits with an error, we log the output to stderr
+    #   at ERROR level if it hasn't already been displayed to the console
+    #   (e.g. if --verbose logging wasn't enabled).  This way we don't log
+    #   the output to the console twice.
+    #
+    # If show_stdout=True, then the above is still done, but with DEBUG
+    # replaced by INFO.
+    if show_stdout:
+        # Then log the subprocess output at INFO level.
+        log_subprocess = subprocess_logger.info
+        used_level = logging.INFO
+    else:
+        # Then log the subprocess output using VERBOSE.  This also ensures
+        # it will be logged to the log file (aka user_log), if enabled.
+        log_subprocess = subprocess_logger.verbose
+        used_level = VERBOSE
+
+    # Whether the subprocess will be visible in the console.
+    showing_subprocess = subprocess_logger.getEffectiveLevel() <= used_level
+
+    # Only use the spinner if we're not showing the subprocess output
+    # and we have a spinner.
+    use_spinner = not showing_subprocess and spinner is not None
+
+    if command_desc is None:
+        command_desc = format_command_args(cmd)
+
+    log_subprocess("Running command %s", command_desc)
+    env = os.environ.copy()
+    if extra_environ:
+        env.update(extra_environ)
+    for name in unset_environ:
+        env.pop(name, None)
+    try:
+        proc = subprocess.Popen(
+            # Convert HiddenText objects to the underlying str.
+            reveal_command_args(cmd),
+            stdin=subprocess.PIPE,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.STDOUT if not stdout_only else subprocess.PIPE,
+            cwd=cwd,
+            env=env,
+            errors="backslashreplace",
+        )
+    except Exception as exc:
+        if log_failed_cmd:
+            subprocess_logger.critical(
+                "Error %s while executing command %s",
+                exc,
+                command_desc,
+            )
+        raise
+    all_output = []
+    if not stdout_only:
+        assert proc.stdout
+        assert proc.stdin
+        proc.stdin.close()
+        # In this mode, stdout and stderr are in the same pipe.
+        while True:
+            line: str = proc.stdout.readline()
+            if not line:
+                break
+            line = line.rstrip()
+            all_output.append(line + "\n")
+
+            # Show the line immediately.
+            log_subprocess(line)
+            # Update the spinner.
+            if use_spinner:
+                assert spinner
+                spinner.spin()
+        try:
+            proc.wait()
+        finally:
+            if proc.stdout:
+                proc.stdout.close()
+        output = "".join(all_output)
+    else:
+        # In this mode, stdout and stderr are in different pipes.
+        # We must use communicate() which is the only safe way to read both.
+        out, err = proc.communicate()
+        # log line by line to preserve pip log indenting
+        for out_line in out.splitlines():
+            log_subprocess(out_line)
+        all_output.append(out)
+        for err_line in err.splitlines():
+            log_subprocess(err_line)
+        all_output.append(err)
+        output = out
+
+    proc_had_error = proc.returncode and proc.returncode not in extra_ok_returncodes
+    if use_spinner:
+        assert spinner
+        if proc_had_error:
+            spinner.finish("error")
+        else:
+            spinner.finish("done")
+    if proc_had_error:
+        if on_returncode == "raise":
+            if not showing_subprocess and log_failed_cmd:
+                # Then the subprocess streams haven't been logged to the
+                # console yet.
+                msg = make_subprocess_output_error(
+                    cmd_args=cmd,
+                    cwd=cwd,
+                    lines=all_output,
+                    exit_status=proc.returncode,
+                )
+                subprocess_logger.error(msg)
+            raise InstallationSubprocessError(proc.returncode, command_desc)
+        elif on_returncode == "warn":
+            subprocess_logger.warning(
+                'Command "%s" had error code %s in %s',
+                command_desc,
+                proc.returncode,
+                cwd,
+            )
+        elif on_returncode == "ignore":
+            pass
+        else:
+            raise ValueError(f"Invalid value: on_returncode={on_returncode!r}")
+    return output
+
+
+def runner_with_spinner_message(message: str) -> Callable[..., None]:
+    """Provide a subprocess_runner that shows a spinner message.
+
+    Intended for use with for pep517's Pep517HookCaller. Thus, the runner has
+    an API that matches what's expected by Pep517HookCaller.subprocess_runner.
+    """
+
+    def runner(
+        cmd: List[str],
+        cwd: Optional[str] = None,
+        extra_environ: Optional[Mapping[str, Any]] = None,
+    ) -> None:
+        with open_spinner(message) as spinner:
+            call_subprocess(
+                cmd,
+                cwd=cwd,
+                extra_environ=extra_environ,
+                spinner=spinner,
+            )
+
+    return runner
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/temp_dir.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/temp_dir.py
new file mode 100644
index 0000000..442679a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/temp_dir.py
@@ -0,0 +1,246 @@
+import errno
+import itertools
+import logging
+import os.path
+import tempfile
+from contextlib import ExitStack, contextmanager
+from typing import Any, Dict, Iterator, Optional, TypeVar, Union
+
+from pip._internal.utils.misc import enum, rmtree
+
+logger = logging.getLogger(__name__)
+
+_T = TypeVar("_T", bound="TempDirectory")
+
+
+# Kinds of temporary directories. Only needed for ones that are
+# globally-managed.
+tempdir_kinds = enum(
+    BUILD_ENV="build-env",
+    EPHEM_WHEEL_CACHE="ephem-wheel-cache",
+    REQ_BUILD="req-build",
+)
+
+
+_tempdir_manager: Optional[ExitStack] = None
+
+
+@contextmanager
+def global_tempdir_manager() -> Iterator[None]:
+    global _tempdir_manager
+    with ExitStack() as stack:
+        old_tempdir_manager, _tempdir_manager = _tempdir_manager, stack
+        try:
+            yield
+        finally:
+            _tempdir_manager = old_tempdir_manager
+
+
+class TempDirectoryTypeRegistry:
+    """Manages temp directory behavior"""
+
+    def __init__(self) -> None:
+        self._should_delete: Dict[str, bool] = {}
+
+    def set_delete(self, kind: str, value: bool) -> None:
+        """Indicate whether a TempDirectory of the given kind should be
+        auto-deleted.
+        """
+        self._should_delete[kind] = value
+
+    def get_delete(self, kind: str) -> bool:
+        """Get configured auto-delete flag for a given TempDirectory type,
+        default True.
+        """
+        return self._should_delete.get(kind, True)
+
+
+_tempdir_registry: Optional[TempDirectoryTypeRegistry] = None
+
+
+@contextmanager
+def tempdir_registry() -> Iterator[TempDirectoryTypeRegistry]:
+    """Provides a scoped global tempdir registry that can be used to dictate
+    whether directories should be deleted.
+    """
+    global _tempdir_registry
+    old_tempdir_registry = _tempdir_registry
+    _tempdir_registry = TempDirectoryTypeRegistry()
+    try:
+        yield _tempdir_registry
+    finally:
+        _tempdir_registry = old_tempdir_registry
+
+
+class _Default:
+    pass
+
+
+_default = _Default()
+
+
+class TempDirectory:
+    """Helper class that owns and cleans up a temporary directory.
+
+    This class can be used as a context manager or as an OO representation of a
+    temporary directory.
+
+    Attributes:
+        path
+            Location to the created temporary directory
+        delete
+            Whether the directory should be deleted when exiting
+            (when used as a contextmanager)
+
+    Methods:
+        cleanup()
+            Deletes the temporary directory
+
+    When used as a context manager, if the delete attribute is True, on
+    exiting the context the temporary directory is deleted.
+    """
+
+    def __init__(
+        self,
+        path: Optional[str] = None,
+        delete: Union[bool, None, _Default] = _default,
+        kind: str = "temp",
+        globally_managed: bool = False,
+    ):
+        super().__init__()
+
+        if delete is _default:
+            if path is not None:
+                # If we were given an explicit directory, resolve delete option
+                # now.
+                delete = False
+            else:
+                # Otherwise, we wait until cleanup and see what
+                # tempdir_registry says.
+                delete = None
+
+        # The only time we specify path is in for editables where it
+        # is the value of the --src option.
+        if path is None:
+            path = self._create(kind)
+
+        self._path = path
+        self._deleted = False
+        self.delete = delete
+        self.kind = kind
+
+        if globally_managed:
+            assert _tempdir_manager is not None
+            _tempdir_manager.enter_context(self)
+
+    @property
+    def path(self) -> str:
+        assert not self._deleted, f"Attempted to access deleted path: {self._path}"
+        return self._path
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__} {self.path!r}>"
+
+    def __enter__(self: _T) -> _T:
+        return self
+
+    def __exit__(self, exc: Any, value: Any, tb: Any) -> None:
+        if self.delete is not None:
+            delete = self.delete
+        elif _tempdir_registry:
+            delete = _tempdir_registry.get_delete(self.kind)
+        else:
+            delete = True
+
+        if delete:
+            self.cleanup()
+
+    def _create(self, kind: str) -> str:
+        """Create a temporary directory and store its path in self.path"""
+        # We realpath here because some systems have their default tmpdir
+        # symlinked to another directory.  This tends to confuse build
+        # scripts, so we canonicalize the path by traversing potential
+        # symlinks here.
+        path = os.path.realpath(tempfile.mkdtemp(prefix=f"pip-{kind}-"))
+        logger.debug("Created temporary directory: %s", path)
+        return path
+
+    def cleanup(self) -> None:
+        """Remove the temporary directory created and reset state"""
+        self._deleted = True
+        if not os.path.exists(self._path):
+            return
+        rmtree(self._path)
+
+
+class AdjacentTempDirectory(TempDirectory):
+    """Helper class that creates a temporary directory adjacent to a real one.
+
+    Attributes:
+        original
+            The original directory to create a temp directory for.
+        path
+            After calling create() or entering, contains the full
+            path to the temporary directory.
+        delete
+            Whether the directory should be deleted when exiting
+            (when used as a contextmanager)
+
+    """
+
+    # The characters that may be used to name the temp directory
+    # We always prepend a ~ and then rotate through these until
+    # a usable name is found.
+    # pkg_resources raises a different error for .dist-info folder
+    # with leading '-' and invalid metadata
+    LEADING_CHARS = "-~.=%0123456789"
+
+    def __init__(self, original: str, delete: Optional[bool] = None) -> None:
+        self.original = original.rstrip("/\\")
+        super().__init__(delete=delete)
+
+    @classmethod
+    def _generate_names(cls, name: str) -> Iterator[str]:
+        """Generates a series of temporary names.
+
+        The algorithm replaces the leading characters in the name
+        with ones that are valid filesystem characters, but are not
+        valid package names (for both Python and pip definitions of
+        package).
+        """
+        for i in range(1, len(name)):
+            for candidate in itertools.combinations_with_replacement(
+                cls.LEADING_CHARS, i - 1
+            ):
+                new_name = "~" + "".join(candidate) + name[i:]
+                if new_name != name:
+                    yield new_name
+
+        # If we make it this far, we will have to make a longer name
+        for i in range(len(cls.LEADING_CHARS)):
+            for candidate in itertools.combinations_with_replacement(
+                cls.LEADING_CHARS, i
+            ):
+                new_name = "~" + "".join(candidate) + name
+                if new_name != name:
+                    yield new_name
+
+    def _create(self, kind: str) -> str:
+        root, name = os.path.split(self.original)
+        for candidate in self._generate_names(name):
+            path = os.path.join(root, candidate)
+            try:
+                os.mkdir(path)
+            except OSError as ex:
+                # Continue if the name exists already
+                if ex.errno != errno.EEXIST:
+                    raise
+            else:
+                path = os.path.realpath(path)
+                break
+        else:
+            # Final fallback on the default behavior.
+            path = os.path.realpath(tempfile.mkdtemp(prefix=f"pip-{kind}-"))
+
+        logger.debug("Created temporary directory: %s", path)
+        return path
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/unpacking.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/unpacking.py
new file mode 100644
index 0000000..5f63f97
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/unpacking.py
@@ -0,0 +1,258 @@
+"""Utilities related archives.
+"""
+
+import logging
+import os
+import shutil
+import stat
+import tarfile
+import zipfile
+from typing import Iterable, List, Optional
+from zipfile import ZipInfo
+
+from pip._internal.exceptions import InstallationError
+from pip._internal.utils.filetypes import (
+    BZ2_EXTENSIONS,
+    TAR_EXTENSIONS,
+    XZ_EXTENSIONS,
+    ZIP_EXTENSIONS,
+)
+from pip._internal.utils.misc import ensure_dir
+
+logger = logging.getLogger(__name__)
+
+
+SUPPORTED_EXTENSIONS = ZIP_EXTENSIONS + TAR_EXTENSIONS
+
+try:
+    import bz2  # noqa
+
+    SUPPORTED_EXTENSIONS += BZ2_EXTENSIONS
+except ImportError:
+    logger.debug("bz2 module is not available")
+
+try:
+    # Only for Python 3.3+
+    import lzma  # noqa
+
+    SUPPORTED_EXTENSIONS += XZ_EXTENSIONS
+except ImportError:
+    logger.debug("lzma module is not available")
+
+
+def current_umask() -> int:
+    """Get the current umask which involves having to set it temporarily."""
+    mask = os.umask(0)
+    os.umask(mask)
+    return mask
+
+
+def split_leading_dir(path: str) -> List[str]:
+    path = path.lstrip("/").lstrip("\\")
+    if "/" in path and (
+        ("\\" in path and path.find("/") < path.find("\\")) or "\\" not in path
+    ):
+        return path.split("/", 1)
+    elif "\\" in path:
+        return path.split("\\", 1)
+    else:
+        return [path, ""]
+
+
+def has_leading_dir(paths: Iterable[str]) -> bool:
+    """Returns true if all the paths have the same leading path name
+    (i.e., everything is in one subdirectory in an archive)"""
+    common_prefix = None
+    for path in paths:
+        prefix, rest = split_leading_dir(path)
+        if not prefix:
+            return False
+        elif common_prefix is None:
+            common_prefix = prefix
+        elif prefix != common_prefix:
+            return False
+    return True
+
+
+def is_within_directory(directory: str, target: str) -> bool:
+    """
+    Return true if the absolute path of target is within the directory
+    """
+    abs_directory = os.path.abspath(directory)
+    abs_target = os.path.abspath(target)
+
+    prefix = os.path.commonprefix([abs_directory, abs_target])
+    return prefix == abs_directory
+
+
+def set_extracted_file_to_default_mode_plus_executable(path: str) -> None:
+    """
+    Make file present at path have execute for user/group/world
+    (chmod +x) is no-op on windows per python docs
+    """
+    os.chmod(path, (0o777 & ~current_umask() | 0o111))
+
+
+def zip_item_is_executable(info: ZipInfo) -> bool:
+    mode = info.external_attr >> 16
+    # if mode and regular file and any execute permissions for
+    # user/group/world?
+    return bool(mode and stat.S_ISREG(mode) and mode & 0o111)
+
+
+def unzip_file(filename: str, location: str, flatten: bool = True) -> None:
+    """
+    Unzip the file (with path `filename`) to the destination `location`.  All
+    files are written based on system defaults and umask (i.e. permissions are
+    not preserved), except that regular file members with any execute
+    permissions (user, group, or world) have "chmod +x" applied after being
+    written. Note that for windows, any execute changes using os.chmod are
+    no-ops per the python docs.
+    """
+    ensure_dir(location)
+    zipfp = open(filename, "rb")
+    try:
+        zip = zipfile.ZipFile(zipfp, allowZip64=True)
+        leading = has_leading_dir(zip.namelist()) and flatten
+        for info in zip.infolist():
+            name = info.filename
+            fn = name
+            if leading:
+                fn = split_leading_dir(name)[1]
+            fn = os.path.join(location, fn)
+            dir = os.path.dirname(fn)
+            if not is_within_directory(location, fn):
+                message = (
+                    "The zip file ({}) has a file ({}) trying to install "
+                    "outside target directory ({})"
+                )
+                raise InstallationError(message.format(filename, fn, location))
+            if fn.endswith("/") or fn.endswith("\\"):
+                # A directory
+                ensure_dir(fn)
+            else:
+                ensure_dir(dir)
+                # Don't use read() to avoid allocating an arbitrarily large
+                # chunk of memory for the file's content
+                fp = zip.open(name)
+                try:
+                    with open(fn, "wb") as destfp:
+                        shutil.copyfileobj(fp, destfp)
+                finally:
+                    fp.close()
+                    if zip_item_is_executable(info):
+                        set_extracted_file_to_default_mode_plus_executable(fn)
+    finally:
+        zipfp.close()
+
+
+def untar_file(filename: str, location: str) -> None:
+    """
+    Untar the file (with path `filename`) to the destination `location`.
+    All files are written based on system defaults and umask (i.e. permissions
+    are not preserved), except that regular file members with any execute
+    permissions (user, group, or world) have "chmod +x" applied after being
+    written.  Note that for windows, any execute changes using os.chmod are
+    no-ops per the python docs.
+    """
+    ensure_dir(location)
+    if filename.lower().endswith(".gz") or filename.lower().endswith(".tgz"):
+        mode = "r:gz"
+    elif filename.lower().endswith(BZ2_EXTENSIONS):
+        mode = "r:bz2"
+    elif filename.lower().endswith(XZ_EXTENSIONS):
+        mode = "r:xz"
+    elif filename.lower().endswith(".tar"):
+        mode = "r"
+    else:
+        logger.warning(
+            "Cannot determine compression type for file %s",
+            filename,
+        )
+        mode = "r:*"
+    tar = tarfile.open(filename, mode, encoding="utf-8")
+    try:
+        leading = has_leading_dir([member.name for member in tar.getmembers()])
+        for member in tar.getmembers():
+            fn = member.name
+            if leading:
+                fn = split_leading_dir(fn)[1]
+            path = os.path.join(location, fn)
+            if not is_within_directory(location, path):
+                message = (
+                    "The tar file ({}) has a file ({}) trying to install "
+                    "outside target directory ({})"
+                )
+                raise InstallationError(message.format(filename, path, location))
+            if member.isdir():
+                ensure_dir(path)
+            elif member.issym():
+                try:
+                    # https://github.com/python/typeshed/issues/2673
+                    tar._extract_member(member, path)  # type: ignore
+                except Exception as exc:
+                    # Some corrupt tar files seem to produce this
+                    # (specifically bad symlinks)
+                    logger.warning(
+                        "In the tar file %s the member %s is invalid: %s",
+                        filename,
+                        member.name,
+                        exc,
+                    )
+                    continue
+            else:
+                try:
+                    fp = tar.extractfile(member)
+                except (KeyError, AttributeError) as exc:
+                    # Some corrupt tar files seem to produce this
+                    # (specifically bad symlinks)
+                    logger.warning(
+                        "In the tar file %s the member %s is invalid: %s",
+                        filename,
+                        member.name,
+                        exc,
+                    )
+                    continue
+                ensure_dir(os.path.dirname(path))
+                assert fp is not None
+                with open(path, "wb") as destfp:
+                    shutil.copyfileobj(fp, destfp)
+                fp.close()
+                # Update the timestamp (useful for cython compiled files)
+                tar.utime(member, path)
+                # member have any execute permissions for user/group/world?
+                if member.mode & 0o111:
+                    set_extracted_file_to_default_mode_plus_executable(path)
+    finally:
+        tar.close()
+
+
+def unpack_file(
+    filename: str,
+    location: str,
+    content_type: Optional[str] = None,
+) -> None:
+    filename = os.path.realpath(filename)
+    if (
+        content_type == "application/zip"
+        or filename.lower().endswith(ZIP_EXTENSIONS)
+        or zipfile.is_zipfile(filename)
+    ):
+        unzip_file(filename, location, flatten=not filename.endswith(".whl"))
+    elif (
+        content_type == "application/x-gzip"
+        or tarfile.is_tarfile(filename)
+        or filename.lower().endswith(TAR_EXTENSIONS + BZ2_EXTENSIONS + XZ_EXTENSIONS)
+    ):
+        untar_file(filename, location)
+    else:
+        # FIXME: handle?
+        # FIXME: magic signatures?
+        logger.critical(
+            "Cannot unpack file %s (downloaded from %s, content-type: %s); "
+            "cannot detect archive format",
+            filename,
+            location,
+            content_type,
+        )
+        raise InstallationError(f"Cannot determine archive format of {location}")
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/urls.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/urls.py
new file mode 100644
index 0000000..6ba2e04
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/urls.py
@@ -0,0 +1,62 @@
+import os
+import string
+import urllib.parse
+import urllib.request
+from typing import Optional
+
+from .compat import WINDOWS
+
+
+def get_url_scheme(url: str) -> Optional[str]:
+    if ":" not in url:
+        return None
+    return url.split(":", 1)[0].lower()
+
+
+def path_to_url(path: str) -> str:
+    """
+    Convert a path to a file: URL.  The path will be made absolute and have
+    quoted path parts.
+    """
+    path = os.path.normpath(os.path.abspath(path))
+    url = urllib.parse.urljoin("file:", urllib.request.pathname2url(path))
+    return url
+
+
+def url_to_path(url: str) -> str:
+    """
+    Convert a file: URL to a path.
+    """
+    assert url.startswith(
+        "file:"
+    ), f"You can only turn file: urls into filenames (not {url!r})"
+
+    _, netloc, path, _, _ = urllib.parse.urlsplit(url)
+
+    if not netloc or netloc == "localhost":
+        # According to RFC 8089, same as empty authority.
+        netloc = ""
+    elif WINDOWS:
+        # If we have a UNC path, prepend UNC share notation.
+        netloc = "\\\\" + netloc
+    else:
+        raise ValueError(
+            f"non-local file URIs are not supported on this platform: {url!r}"
+        )
+
+    path = urllib.request.url2pathname(netloc + path)
+
+    # On Windows, urlsplit parses the path as something like "/C:/Users/foo".
+    # This creates issues for path-related functions like io.open(), so we try
+    # to detect and strip the leading slash.
+    if (
+        WINDOWS
+        and not netloc  # Not UNC.
+        and len(path) >= 3
+        and path[0] == "/"  # Leading slash to strip.
+        and path[1] in string.ascii_letters  # Drive letter.
+        and path[2:4] in (":", ":/")  # Colon + end of string, or colon + absolute path.
+    ):
+        path = path[1:]
+
+    return path
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/virtualenv.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/virtualenv.py
new file mode 100644
index 0000000..c926db4
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/virtualenv.py
@@ -0,0 +1,104 @@
+import logging
+import os
+import re
+import site
+import sys
+from typing import List, Optional
+
+logger = logging.getLogger(__name__)
+_INCLUDE_SYSTEM_SITE_PACKAGES_REGEX = re.compile(
+    r"include-system-site-packages\s*=\s*(?Ptrue|false)"
+)
+
+
+def _running_under_venv() -> bool:
+    """Checks if sys.base_prefix and sys.prefix match.
+
+    This handles PEP 405 compliant virtual environments.
+    """
+    return sys.prefix != getattr(sys, "base_prefix", sys.prefix)
+
+
+def _running_under_regular_virtualenv() -> bool:
+    """Checks if sys.real_prefix is set.
+
+    This handles virtual environments created with pypa's virtualenv.
+    """
+    # pypa/virtualenv case
+    return hasattr(sys, "real_prefix")
+
+
+def running_under_virtualenv() -> bool:
+    """Return True if we're running inside a virtualenv, False otherwise."""
+    return _running_under_venv() or _running_under_regular_virtualenv()
+
+
+def _get_pyvenv_cfg_lines() -> Optional[List[str]]:
+    """Reads {sys.prefix}/pyvenv.cfg and returns its contents as list of lines
+
+    Returns None, if it could not read/access the file.
+    """
+    pyvenv_cfg_file = os.path.join(sys.prefix, "pyvenv.cfg")
+    try:
+        # Although PEP 405 does not specify, the built-in venv module always
+        # writes with UTF-8. (pypa/pip#8717)
+        with open(pyvenv_cfg_file, encoding="utf-8") as f:
+            return f.read().splitlines()  # avoids trailing newlines
+    except OSError:
+        return None
+
+
+def _no_global_under_venv() -> bool:
+    """Check `{sys.prefix}/pyvenv.cfg` for system site-packages inclusion
+
+    PEP 405 specifies that when system site-packages are not supposed to be
+    visible from a virtual environment, `pyvenv.cfg` must contain the following
+    line:
+
+        include-system-site-packages = false
+
+    Additionally, log a warning if accessing the file fails.
+    """
+    cfg_lines = _get_pyvenv_cfg_lines()
+    if cfg_lines is None:
+        # We're not in a "sane" venv, so assume there is no system
+        # site-packages access (since that's PEP 405's default state).
+        logger.warning(
+            "Could not access 'pyvenv.cfg' despite a virtual environment "
+            "being active. Assuming global site-packages is not accessible "
+            "in this environment."
+        )
+        return True
+
+    for line in cfg_lines:
+        match = _INCLUDE_SYSTEM_SITE_PACKAGES_REGEX.match(line)
+        if match is not None and match.group("value") == "false":
+            return True
+    return False
+
+
+def _no_global_under_regular_virtualenv() -> bool:
+    """Check if "no-global-site-packages.txt" exists beside site.py
+
+    This mirrors logic in pypa/virtualenv for determining whether system
+    site-packages are visible in the virtual environment.
+    """
+    site_mod_dir = os.path.dirname(os.path.abspath(site.__file__))
+    no_global_site_packages_file = os.path.join(
+        site_mod_dir,
+        "no-global-site-packages.txt",
+    )
+    return os.path.exists(no_global_site_packages_file)
+
+
+def virtualenv_no_global() -> bool:
+    """Returns a boolean, whether running in venv with no system site-packages."""
+    # PEP 405 compliance needs to be checked first since virtualenv >=20 would
+    # return True for both checks, but is only able to use the PEP 405 config.
+    if _running_under_venv():
+        return _no_global_under_venv()
+
+    if _running_under_regular_virtualenv():
+        return _no_global_under_regular_virtualenv()
+
+    return False
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/utils/wheel.py b/utils/python-venv/Lib/site-packages/pip/_internal/utils/wheel.py
new file mode 100644
index 0000000..03f00e4
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/utils/wheel.py
@@ -0,0 +1,182 @@
+"""Support functions for working with wheel files.
+"""
+
+import logging
+from email.message import Message
+from email.parser import Parser
+from typing import Dict, Tuple
+from zipfile import BadZipFile, ZipFile
+
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.pkg_resources import DistInfoDistribution, Distribution
+
+from pip._internal.exceptions import UnsupportedWheel
+from pip._internal.utils.pkg_resources import DictMetadata
+
+VERSION_COMPATIBLE = (1, 0)
+
+
+logger = logging.getLogger(__name__)
+
+
+class WheelMetadata(DictMetadata):
+    """Metadata provider that maps metadata decoding exceptions to our
+    internal exception type.
+    """
+
+    def __init__(self, metadata: Dict[str, bytes], wheel_name: str) -> None:
+        super().__init__(metadata)
+        self._wheel_name = wheel_name
+
+    def get_metadata(self, name: str) -> str:
+        try:
+            return super().get_metadata(name)
+        except UnicodeDecodeError as e:
+            # Augment the default error with the origin of the file.
+            raise UnsupportedWheel(
+                f"Error decoding metadata for {self._wheel_name}: {e}"
+            )
+
+
+def pkg_resources_distribution_for_wheel(
+    wheel_zip: ZipFile, name: str, location: str
+) -> Distribution:
+    """Get a pkg_resources distribution given a wheel.
+
+    :raises UnsupportedWheel: on any errors
+    """
+    info_dir, _ = parse_wheel(wheel_zip, name)
+
+    metadata_files = [p for p in wheel_zip.namelist() if p.startswith(f"{info_dir}/")]
+
+    metadata_text: Dict[str, bytes] = {}
+    for path in metadata_files:
+        _, metadata_name = path.split("/", 1)
+
+        try:
+            metadata_text[metadata_name] = read_wheel_metadata_file(wheel_zip, path)
+        except UnsupportedWheel as e:
+            raise UnsupportedWheel("{} has an invalid wheel, {}".format(name, str(e)))
+
+    metadata = WheelMetadata(metadata_text, location)
+
+    return DistInfoDistribution(location=location, metadata=metadata, project_name=name)
+
+
+def parse_wheel(wheel_zip: ZipFile, name: str) -> Tuple[str, Message]:
+    """Extract information from the provided wheel, ensuring it meets basic
+    standards.
+
+    Returns the name of the .dist-info directory and the parsed WHEEL metadata.
+    """
+    try:
+        info_dir = wheel_dist_info_dir(wheel_zip, name)
+        metadata = wheel_metadata(wheel_zip, info_dir)
+        version = wheel_version(metadata)
+    except UnsupportedWheel as e:
+        raise UnsupportedWheel("{} has an invalid wheel, {}".format(name, str(e)))
+
+    check_compatibility(version, name)
+
+    return info_dir, metadata
+
+
+def wheel_dist_info_dir(source: ZipFile, name: str) -> str:
+    """Returns the name of the contained .dist-info directory.
+
+    Raises AssertionError or UnsupportedWheel if not found, >1 found, or
+    it doesn't match the provided name.
+    """
+    # Zip file path separators must be /
+    subdirs = {p.split("/", 1)[0] for p in source.namelist()}
+
+    info_dirs = [s for s in subdirs if s.endswith(".dist-info")]
+
+    if not info_dirs:
+        raise UnsupportedWheel(".dist-info directory not found")
+
+    if len(info_dirs) > 1:
+        raise UnsupportedWheel(
+            "multiple .dist-info directories found: {}".format(", ".join(info_dirs))
+        )
+
+    info_dir = info_dirs[0]
+
+    info_dir_name = canonicalize_name(info_dir)
+    canonical_name = canonicalize_name(name)
+    if not info_dir_name.startswith(canonical_name):
+        raise UnsupportedWheel(
+            ".dist-info directory {!r} does not start with {!r}".format(
+                info_dir, canonical_name
+            )
+        )
+
+    return info_dir
+
+
+def read_wheel_metadata_file(source: ZipFile, path: str) -> bytes:
+    try:
+        return source.read(path)
+        # BadZipFile for general corruption, KeyError for missing entry,
+        # and RuntimeError for password-protected files
+    except (BadZipFile, KeyError, RuntimeError) as e:
+        raise UnsupportedWheel(f"could not read {path!r} file: {e!r}")
+
+
+def wheel_metadata(source: ZipFile, dist_info_dir: str) -> Message:
+    """Return the WHEEL metadata of an extracted wheel, if possible.
+    Otherwise, raise UnsupportedWheel.
+    """
+    path = f"{dist_info_dir}/WHEEL"
+    # Zip file path separators must be /
+    wheel_contents = read_wheel_metadata_file(source, path)
+
+    try:
+        wheel_text = wheel_contents.decode()
+    except UnicodeDecodeError as e:
+        raise UnsupportedWheel(f"error decoding {path!r}: {e!r}")
+
+    # FeedParser (used by Parser) does not raise any exceptions. The returned
+    # message may have .defects populated, but for backwards-compatibility we
+    # currently ignore them.
+    return Parser().parsestr(wheel_text)
+
+
+def wheel_version(wheel_data: Message) -> Tuple[int, ...]:
+    """Given WHEEL metadata, return the parsed Wheel-Version.
+    Otherwise, raise UnsupportedWheel.
+    """
+    version_text = wheel_data["Wheel-Version"]
+    if version_text is None:
+        raise UnsupportedWheel("WHEEL is missing Wheel-Version")
+
+    version = version_text.strip()
+
+    try:
+        return tuple(map(int, version.split(".")))
+    except ValueError:
+        raise UnsupportedWheel(f"invalid Wheel-Version: {version!r}")
+
+
+def check_compatibility(version: Tuple[int, ...], name: str) -> None:
+    """Raises errors or warns if called with an incompatible Wheel-Version.
+
+    pip should refuse to install a Wheel-Version that's a major series
+    ahead of what it's compatible with (e.g 2.0 > 1.1); and warn when
+    installing a version only minor version ahead (e.g 1.2 > 1.1).
+
+    version: a 2-tuple representing a Wheel-Version (Major, Minor)
+    name: name of wheel or package to raise exception about
+
+    :raises UnsupportedWheel: when an incompatible Wheel-Version is given
+    """
+    if version[0] > VERSION_COMPATIBLE[0]:
+        raise UnsupportedWheel(
+            "{}'s Wheel-Version ({}) is not compatible with this version "
+            "of pip".format(name, ".".join(map(str, version)))
+        )
+    elif version > VERSION_COMPATIBLE:
+        logger.warning(
+            "Installing from a newer Wheel-Version (%s)",
+            ".".join(map(str, version)),
+        )
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/vcs/__init__.py b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/__init__.py
new file mode 100644
index 0000000..b6beddb
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/__init__.py
@@ -0,0 +1,15 @@
+# Expose a limited set of classes and functions so callers outside of
+# the vcs package don't need to import deeper than `pip._internal.vcs`.
+# (The test directory may still need to import from a vcs sub-package.)
+# Import all vcs modules to register each VCS in the VcsSupport object.
+import pip._internal.vcs.bazaar
+import pip._internal.vcs.git
+import pip._internal.vcs.mercurial
+import pip._internal.vcs.subversion  # noqa: F401
+from pip._internal.vcs.versioncontrol import (  # noqa: F401
+    RemoteNotFoundError,
+    RemoteNotValidError,
+    is_url,
+    make_vcs_requirement_url,
+    vcs,
+)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/vcs/bazaar.py b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/bazaar.py
new file mode 100644
index 0000000..82e7595
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/bazaar.py
@@ -0,0 +1,93 @@
+import logging
+from typing import List, Optional, Tuple
+
+from pip._internal.utils.misc import HiddenText, display_path
+from pip._internal.utils.subprocess import make_command
+from pip._internal.utils.urls import path_to_url
+from pip._internal.vcs.versioncontrol import (
+    AuthInfo,
+    RemoteNotFoundError,
+    RevOptions,
+    VersionControl,
+    vcs,
+)
+
+logger = logging.getLogger(__name__)
+
+
+class Bazaar(VersionControl):
+    name = "bzr"
+    dirname = ".bzr"
+    repo_name = "branch"
+    schemes = (
+        "bzr+http",
+        "bzr+https",
+        "bzr+ssh",
+        "bzr+sftp",
+        "bzr+ftp",
+        "bzr+lp",
+        "bzr+file",
+    )
+
+    @staticmethod
+    def get_base_rev_args(rev: str) -> List[str]:
+        return ["-r", rev]
+
+    def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        rev_display = rev_options.to_display()
+        logger.info(
+            "Checking out %s%s to %s",
+            url,
+            rev_display,
+            display_path(dest),
+        )
+        cmd_args = make_command("branch", "-q", rev_options.to_args(), url, dest)
+        self.run_command(cmd_args)
+
+    def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        self.run_command(make_command("switch", url), cwd=dest)
+
+    def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        cmd_args = make_command("pull", "-q", rev_options.to_args())
+        self.run_command(cmd_args, cwd=dest)
+
+    @classmethod
+    def get_url_rev_and_auth(cls, url: str) -> Tuple[str, Optional[str], AuthInfo]:
+        # hotfix the URL scheme after removing bzr+ from bzr+ssh:// readd it
+        url, rev, user_pass = super().get_url_rev_and_auth(url)
+        if url.startswith("ssh://"):
+            url = "bzr+" + url
+        return url, rev, user_pass
+
+    @classmethod
+    def get_remote_url(cls, location: str) -> str:
+        urls = cls.run_command(
+            ["info"], show_stdout=False, stdout_only=True, cwd=location
+        )
+        for line in urls.splitlines():
+            line = line.strip()
+            for x in ("checkout of branch: ", "parent branch: "):
+                if line.startswith(x):
+                    repo = line.split(x)[1]
+                    if cls._is_local_repository(repo):
+                        return path_to_url(repo)
+                    return repo
+        raise RemoteNotFoundError
+
+    @classmethod
+    def get_revision(cls, location: str) -> str:
+        revision = cls.run_command(
+            ["revno"],
+            show_stdout=False,
+            stdout_only=True,
+            cwd=location,
+        )
+        return revision.splitlines()[-1]
+
+    @classmethod
+    def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool:
+        """Always assume the versions don't match"""
+        return False
+
+
+vcs.register(Bazaar)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/vcs/git.py b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/git.py
new file mode 100644
index 0000000..7a78ad1
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/git.py
@@ -0,0 +1,513 @@
+import logging
+import os.path
+import pathlib
+import re
+import urllib.parse
+import urllib.request
+from typing import List, Optional, Tuple
+
+from pip._internal.exceptions import BadCommand, InstallationError
+from pip._internal.utils.misc import HiddenText, display_path, hide_url
+from pip._internal.utils.subprocess import make_command
+from pip._internal.vcs.versioncontrol import (
+    AuthInfo,
+    RemoteNotFoundError,
+    RemoteNotValidError,
+    RevOptions,
+    VersionControl,
+    find_path_to_project_root_from_repo_root,
+    vcs,
+)
+
+urlsplit = urllib.parse.urlsplit
+urlunsplit = urllib.parse.urlunsplit
+
+
+logger = logging.getLogger(__name__)
+
+
+GIT_VERSION_REGEX = re.compile(
+    r"^git version "  # Prefix.
+    r"(\d+)"  # Major.
+    r"\.(\d+)"  # Dot, minor.
+    r"(?:\.(\d+))?"  # Optional dot, patch.
+    r".*$"  # Suffix, including any pre- and post-release segments we don't care about.
+)
+
+HASH_REGEX = re.compile("^[a-fA-F0-9]{40}$")
+
+# SCP (Secure copy protocol) shorthand. e.g. 'git@example.com:foo/bar.git'
+SCP_REGEX = re.compile(
+    r"""^
+    # Optional user, e.g. 'git@'
+    (\w+@)?
+    # Server, e.g. 'github.com'.
+    ([^/:]+):
+    # The server-side path. e.g. 'user/project.git'. Must start with an
+    # alphanumeric character so as not to be confusable with a Windows paths
+    # like 'C:/foo/bar' or 'C:\foo\bar'.
+    (\w[^:]*)
+    $""",
+    re.VERBOSE,
+)
+
+
+def looks_like_hash(sha: str) -> bool:
+    return bool(HASH_REGEX.match(sha))
+
+
+class Git(VersionControl):
+    name = "git"
+    dirname = ".git"
+    repo_name = "clone"
+    schemes = (
+        "git+http",
+        "git+https",
+        "git+ssh",
+        "git+git",
+        "git+file",
+    )
+    # Prevent the user's environment variables from interfering with pip:
+    # https://github.com/pypa/pip/issues/1130
+    unset_environ = ("GIT_DIR", "GIT_WORK_TREE")
+    default_arg_rev = "HEAD"
+
+    @staticmethod
+    def get_base_rev_args(rev: str) -> List[str]:
+        return [rev]
+
+    def is_immutable_rev_checkout(self, url: str, dest: str) -> bool:
+        _, rev_options = self.get_url_rev_options(hide_url(url))
+        if not rev_options.rev:
+            return False
+        if not self.is_commit_id_equal(dest, rev_options.rev):
+            # the current commit is different from rev,
+            # which means rev was something else than a commit hash
+            return False
+        # return False in the rare case rev is both a commit hash
+        # and a tag or a branch; we don't want to cache in that case
+        # because that branch/tag could point to something else in the future
+        is_tag_or_branch = bool(self.get_revision_sha(dest, rev_options.rev)[0])
+        return not is_tag_or_branch
+
+    def get_git_version(self) -> Tuple[int, ...]:
+        version = self.run_command(["version"], show_stdout=False, stdout_only=True)
+        match = GIT_VERSION_REGEX.match(version)
+        if not match:
+            logger.warning("Can't parse git version: %s", version)
+            return ()
+        return tuple(int(c) for c in match.groups())
+
+    @classmethod
+    def get_current_branch(cls, location: str) -> Optional[str]:
+        """
+        Return the current branch, or None if HEAD isn't at a branch
+        (e.g. detached HEAD).
+        """
+        # git-symbolic-ref exits with empty stdout if "HEAD" is a detached
+        # HEAD rather than a symbolic ref.  In addition, the -q causes the
+        # command to exit with status code 1 instead of 128 in this case
+        # and to suppress the message to stderr.
+        args = ["symbolic-ref", "-q", "HEAD"]
+        output = cls.run_command(
+            args,
+            extra_ok_returncodes=(1,),
+            show_stdout=False,
+            stdout_only=True,
+            cwd=location,
+        )
+        ref = output.strip()
+
+        if ref.startswith("refs/heads/"):
+            return ref[len("refs/heads/") :]
+
+        return None
+
+    @classmethod
+    def get_revision_sha(cls, dest: str, rev: str) -> Tuple[Optional[str], bool]:
+        """
+        Return (sha_or_none, is_branch), where sha_or_none is a commit hash
+        if the revision names a remote branch or tag, otherwise None.
+
+        Args:
+          dest: the repository directory.
+          rev: the revision name.
+        """
+        # Pass rev to pre-filter the list.
+        output = cls.run_command(
+            ["show-ref", rev],
+            cwd=dest,
+            show_stdout=False,
+            stdout_only=True,
+            on_returncode="ignore",
+        )
+        refs = {}
+        # NOTE: We do not use splitlines here since that would split on other
+        #       unicode separators, which can be maliciously used to install a
+        #       different revision.
+        for line in output.strip().split("\n"):
+            line = line.rstrip("\r")
+            if not line:
+                continue
+            try:
+                ref_sha, ref_name = line.split(" ", maxsplit=2)
+            except ValueError:
+                # Include the offending line to simplify troubleshooting if
+                # this error ever occurs.
+                raise ValueError(f"unexpected show-ref line: {line!r}")
+
+            refs[ref_name] = ref_sha
+
+        branch_ref = f"refs/remotes/origin/{rev}"
+        tag_ref = f"refs/tags/{rev}"
+
+        sha = refs.get(branch_ref)
+        if sha is not None:
+            return (sha, True)
+
+        sha = refs.get(tag_ref)
+
+        return (sha, False)
+
+    @classmethod
+    def _should_fetch(cls, dest: str, rev: str) -> bool:
+        """
+        Return true if rev is a ref or is a commit that we don't have locally.
+
+        Branches and tags are not considered in this method because they are
+        assumed to be always available locally (which is a normal outcome of
+        ``git clone`` and ``git fetch --tags``).
+        """
+        if rev.startswith("refs/"):
+            # Always fetch remote refs.
+            return True
+
+        if not looks_like_hash(rev):
+            # Git fetch would fail with abbreviated commits.
+            return False
+
+        if cls.has_commit(dest, rev):
+            # Don't fetch if we have the commit locally.
+            return False
+
+        return True
+
+    @classmethod
+    def resolve_revision(
+        cls, dest: str, url: HiddenText, rev_options: RevOptions
+    ) -> RevOptions:
+        """
+        Resolve a revision to a new RevOptions object with the SHA1 of the
+        branch, tag, or ref if found.
+
+        Args:
+          rev_options: a RevOptions object.
+        """
+        rev = rev_options.arg_rev
+        # The arg_rev property's implementation for Git ensures that the
+        # rev return value is always non-None.
+        assert rev is not None
+
+        sha, is_branch = cls.get_revision_sha(dest, rev)
+
+        if sha is not None:
+            rev_options = rev_options.make_new(sha)
+            rev_options.branch_name = rev if is_branch else None
+
+            return rev_options
+
+        # Do not show a warning for the common case of something that has
+        # the form of a Git commit hash.
+        if not looks_like_hash(rev):
+            logger.warning(
+                "Did not find branch or tag '%s', assuming revision or ref.",
+                rev,
+            )
+
+        if not cls._should_fetch(dest, rev):
+            return rev_options
+
+        # fetch the requested revision
+        cls.run_command(
+            make_command("fetch", "-q", url, rev_options.to_args()),
+            cwd=dest,
+        )
+        # Change the revision to the SHA of the ref we fetched
+        sha = cls.get_revision(dest, rev="FETCH_HEAD")
+        rev_options = rev_options.make_new(sha)
+
+        return rev_options
+
+    @classmethod
+    def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool:
+        """
+        Return whether the current commit hash equals the given name.
+
+        Args:
+          dest: the repository directory.
+          name: a string name.
+        """
+        if not name:
+            # Then avoid an unnecessary subprocess call.
+            return False
+
+        return cls.get_revision(dest) == name
+
+    def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        rev_display = rev_options.to_display()
+        logger.info("Cloning %s%s to %s", url, rev_display, display_path(dest))
+        if self.get_git_version() >= (2, 17):
+            # Git added support for partial clone in 2.17
+            # https://git-scm.com/docs/partial-clone
+            # Speeds up cloning by functioning without a complete copy of repository
+            self.run_command(
+                make_command(
+                    "clone",
+                    "--filter=blob:none",
+                    "-q",
+                    url,
+                    dest,
+                )
+            )
+        else:
+            self.run_command(make_command("clone", "-q", url, dest))
+
+        if rev_options.rev:
+            # Then a specific revision was requested.
+            rev_options = self.resolve_revision(dest, url, rev_options)
+            branch_name = getattr(rev_options, "branch_name", None)
+            logger.debug("Rev options %s, branch_name %s", rev_options, branch_name)
+            if branch_name is None:
+                # Only do a checkout if the current commit id doesn't match
+                # the requested revision.
+                if not self.is_commit_id_equal(dest, rev_options.rev):
+                    cmd_args = make_command(
+                        "checkout",
+                        "-q",
+                        rev_options.to_args(),
+                    )
+                    self.run_command(cmd_args, cwd=dest)
+            elif self.get_current_branch(dest) != branch_name:
+                # Then a specific branch was requested, and that branch
+                # is not yet checked out.
+                track_branch = f"origin/{branch_name}"
+                cmd_args = [
+                    "checkout",
+                    "-b",
+                    branch_name,
+                    "--track",
+                    track_branch,
+                ]
+                self.run_command(cmd_args, cwd=dest)
+        else:
+            sha = self.get_revision(dest)
+            rev_options = rev_options.make_new(sha)
+
+        logger.info("Resolved %s to commit %s", url, rev_options.rev)
+
+        #: repo may contain submodules
+        self.update_submodules(dest)
+
+    def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        self.run_command(
+            make_command("config", "remote.origin.url", url),
+            cwd=dest,
+        )
+        cmd_args = make_command("checkout", "-q", rev_options.to_args())
+        self.run_command(cmd_args, cwd=dest)
+
+        self.update_submodules(dest)
+
+    def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        # First fetch changes from the default remote
+        if self.get_git_version() >= (1, 9):
+            # fetch tags in addition to everything else
+            self.run_command(["fetch", "-q", "--tags"], cwd=dest)
+        else:
+            self.run_command(["fetch", "-q"], cwd=dest)
+        # Then reset to wanted revision (maybe even origin/master)
+        rev_options = self.resolve_revision(dest, url, rev_options)
+        cmd_args = make_command("reset", "--hard", "-q", rev_options.to_args())
+        self.run_command(cmd_args, cwd=dest)
+        #: update submodules
+        self.update_submodules(dest)
+
+    @classmethod
+    def get_remote_url(cls, location: str) -> str:
+        """
+        Return URL of the first remote encountered.
+
+        Raises RemoteNotFoundError if the repository does not have a remote
+        url configured.
+        """
+        # We need to pass 1 for extra_ok_returncodes since the command
+        # exits with return code 1 if there are no matching lines.
+        stdout = cls.run_command(
+            ["config", "--get-regexp", r"remote\..*\.url"],
+            extra_ok_returncodes=(1,),
+            show_stdout=False,
+            stdout_only=True,
+            cwd=location,
+        )
+        remotes = stdout.splitlines()
+        try:
+            found_remote = remotes[0]
+        except IndexError:
+            raise RemoteNotFoundError
+
+        for remote in remotes:
+            if remote.startswith("remote.origin.url "):
+                found_remote = remote
+                break
+        url = found_remote.split(" ")[1]
+        return cls._git_remote_to_pip_url(url.strip())
+
+    @staticmethod
+    def _git_remote_to_pip_url(url: str) -> str:
+        """
+        Convert a remote url from what git uses to what pip accepts.
+
+        There are 3 legal forms **url** may take:
+
+            1. A fully qualified url: ssh://git@example.com/foo/bar.git
+            2. A local project.git folder: /path/to/bare/repository.git
+            3. SCP shorthand for form 1: git@example.com:foo/bar.git
+
+        Form 1 is output as-is. Form 2 must be converted to URI and form 3 must
+        be converted to form 1.
+
+        See the corresponding test test_git_remote_url_to_pip() for examples of
+        sample inputs/outputs.
+        """
+        if re.match(r"\w+://", url):
+            # This is already valid. Pass it though as-is.
+            return url
+        if os.path.exists(url):
+            # A local bare remote (git clone --mirror).
+            # Needs a file:// prefix.
+            return pathlib.PurePath(url).as_uri()
+        scp_match = SCP_REGEX.match(url)
+        if scp_match:
+            # Add an ssh:// prefix and replace the ':' with a '/'.
+            return scp_match.expand(r"ssh://\1\2/\3")
+        # Otherwise, bail out.
+        raise RemoteNotValidError(url)
+
+    @classmethod
+    def has_commit(cls, location: str, rev: str) -> bool:
+        """
+        Check if rev is a commit that is available in the local repository.
+        """
+        try:
+            cls.run_command(
+                ["rev-parse", "-q", "--verify", "sha^" + rev],
+                cwd=location,
+                log_failed_cmd=False,
+            )
+        except InstallationError:
+            return False
+        else:
+            return True
+
+    @classmethod
+    def get_revision(cls, location: str, rev: Optional[str] = None) -> str:
+        if rev is None:
+            rev = "HEAD"
+        current_rev = cls.run_command(
+            ["rev-parse", rev],
+            show_stdout=False,
+            stdout_only=True,
+            cwd=location,
+        )
+        return current_rev.strip()
+
+    @classmethod
+    def get_subdirectory(cls, location: str) -> Optional[str]:
+        """
+        Return the path to Python project root, relative to the repo root.
+        Return None if the project root is in the repo root.
+        """
+        # find the repo root
+        git_dir = cls.run_command(
+            ["rev-parse", "--git-dir"],
+            show_stdout=False,
+            stdout_only=True,
+            cwd=location,
+        ).strip()
+        if not os.path.isabs(git_dir):
+            git_dir = os.path.join(location, git_dir)
+        repo_root = os.path.abspath(os.path.join(git_dir, ".."))
+        return find_path_to_project_root_from_repo_root(location, repo_root)
+
+    @classmethod
+    def get_url_rev_and_auth(cls, url: str) -> Tuple[str, Optional[str], AuthInfo]:
+        """
+        Prefixes stub URLs like 'user@hostname:user/repo.git' with 'ssh://'.
+        That's required because although they use SSH they sometimes don't
+        work with a ssh:// scheme (e.g. GitHub). But we need a scheme for
+        parsing. Hence we remove it again afterwards and return it as a stub.
+        """
+        # Works around an apparent Git bug
+        # (see https://article.gmane.org/gmane.comp.version-control.git/146500)
+        scheme, netloc, path, query, fragment = urlsplit(url)
+        if scheme.endswith("file"):
+            initial_slashes = path[: -len(path.lstrip("/"))]
+            newpath = initial_slashes + urllib.request.url2pathname(path).replace(
+                "\\", "/"
+            ).lstrip("/")
+            after_plus = scheme.find("+") + 1
+            url = scheme[:after_plus] + urlunsplit(
+                (scheme[after_plus:], netloc, newpath, query, fragment),
+            )
+
+        if "://" not in url:
+            assert "file:" not in url
+            url = url.replace("git+", "git+ssh://")
+            url, rev, user_pass = super().get_url_rev_and_auth(url)
+            url = url.replace("ssh://", "")
+        else:
+            url, rev, user_pass = super().get_url_rev_and_auth(url)
+
+        return url, rev, user_pass
+
+    @classmethod
+    def update_submodules(cls, location: str) -> None:
+        if not os.path.exists(os.path.join(location, ".gitmodules")):
+            return
+        cls.run_command(
+            ["submodule", "update", "--init", "--recursive", "-q"],
+            cwd=location,
+        )
+
+    @classmethod
+    def get_repository_root(cls, location: str) -> Optional[str]:
+        loc = super().get_repository_root(location)
+        if loc:
+            return loc
+        try:
+            r = cls.run_command(
+                ["rev-parse", "--show-toplevel"],
+                cwd=location,
+                show_stdout=False,
+                stdout_only=True,
+                on_returncode="raise",
+                log_failed_cmd=False,
+            )
+        except BadCommand:
+            logger.debug(
+                "could not determine if %s is under git control "
+                "because git is not available",
+                location,
+            )
+            return None
+        except InstallationError:
+            return None
+        return os.path.normpath(r.rstrip("\r\n"))
+
+    @staticmethod
+    def should_add_vcs_url_prefix(repo_url: str) -> bool:
+        """In either https or ssh form, requirements must be prefixed with git+."""
+        return True
+
+
+vcs.register(Git)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/vcs/mercurial.py b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/mercurial.py
new file mode 100644
index 0000000..410c79d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/mercurial.py
@@ -0,0 +1,153 @@
+import configparser
+import logging
+import os
+from typing import List, Optional
+
+from pip._internal.exceptions import BadCommand, InstallationError
+from pip._internal.utils.misc import HiddenText, display_path
+from pip._internal.utils.subprocess import make_command
+from pip._internal.utils.urls import path_to_url
+from pip._internal.vcs.versioncontrol import (
+    RevOptions,
+    VersionControl,
+    find_path_to_project_root_from_repo_root,
+    vcs,
+)
+
+logger = logging.getLogger(__name__)
+
+
+class Mercurial(VersionControl):
+    name = "hg"
+    dirname = ".hg"
+    repo_name = "clone"
+    schemes = (
+        "hg+file",
+        "hg+http",
+        "hg+https",
+        "hg+ssh",
+        "hg+static-http",
+    )
+
+    @staticmethod
+    def get_base_rev_args(rev: str) -> List[str]:
+        return [rev]
+
+    def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        rev_display = rev_options.to_display()
+        logger.info(
+            "Cloning hg %s%s to %s",
+            url,
+            rev_display,
+            display_path(dest),
+        )
+        self.run_command(make_command("clone", "--noupdate", "-q", url, dest))
+        self.run_command(
+            make_command("update", "-q", rev_options.to_args()),
+            cwd=dest,
+        )
+
+    def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        repo_config = os.path.join(dest, self.dirname, "hgrc")
+        config = configparser.RawConfigParser()
+        try:
+            config.read(repo_config)
+            config.set("paths", "default", url.secret)
+            with open(repo_config, "w") as config_file:
+                config.write(config_file)
+        except (OSError, configparser.NoSectionError) as exc:
+            logger.warning("Could not switch Mercurial repository to %s: %s", url, exc)
+        else:
+            cmd_args = make_command("update", "-q", rev_options.to_args())
+            self.run_command(cmd_args, cwd=dest)
+
+    def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        self.run_command(["pull", "-q"], cwd=dest)
+        cmd_args = make_command("update", "-q", rev_options.to_args())
+        self.run_command(cmd_args, cwd=dest)
+
+    @classmethod
+    def get_remote_url(cls, location: str) -> str:
+        url = cls.run_command(
+            ["showconfig", "paths.default"],
+            show_stdout=False,
+            stdout_only=True,
+            cwd=location,
+        ).strip()
+        if cls._is_local_repository(url):
+            url = path_to_url(url)
+        return url.strip()
+
+    @classmethod
+    def get_revision(cls, location: str) -> str:
+        """
+        Return the repository-local changeset revision number, as an integer.
+        """
+        current_revision = cls.run_command(
+            ["parents", "--template={rev}"],
+            show_stdout=False,
+            stdout_only=True,
+            cwd=location,
+        ).strip()
+        return current_revision
+
+    @classmethod
+    def get_requirement_revision(cls, location: str) -> str:
+        """
+        Return the changeset identification hash, as a 40-character
+        hexadecimal string
+        """
+        current_rev_hash = cls.run_command(
+            ["parents", "--template={node}"],
+            show_stdout=False,
+            stdout_only=True,
+            cwd=location,
+        ).strip()
+        return current_rev_hash
+
+    @classmethod
+    def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool:
+        """Always assume the versions don't match"""
+        return False
+
+    @classmethod
+    def get_subdirectory(cls, location: str) -> Optional[str]:
+        """
+        Return the path to Python project root, relative to the repo root.
+        Return None if the project root is in the repo root.
+        """
+        # find the repo root
+        repo_root = cls.run_command(
+            ["root"], show_stdout=False, stdout_only=True, cwd=location
+        ).strip()
+        if not os.path.isabs(repo_root):
+            repo_root = os.path.abspath(os.path.join(location, repo_root))
+        return find_path_to_project_root_from_repo_root(location, repo_root)
+
+    @classmethod
+    def get_repository_root(cls, location: str) -> Optional[str]:
+        loc = super().get_repository_root(location)
+        if loc:
+            return loc
+        try:
+            r = cls.run_command(
+                ["root"],
+                cwd=location,
+                show_stdout=False,
+                stdout_only=True,
+                on_returncode="raise",
+                log_failed_cmd=False,
+            )
+        except BadCommand:
+            logger.debug(
+                "could not determine if %s is under hg control "
+                "because hg is not available",
+                location,
+            )
+            return None
+        except InstallationError:
+            return None
+        return os.path.normpath(r.rstrip("\r\n"))
+
+
+vcs.register(Mercurial)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/vcs/subversion.py b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/subversion.py
new file mode 100644
index 0000000..b5b6fd5
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/subversion.py
@@ -0,0 +1,318 @@
+import logging
+import os
+import re
+from typing import List, Optional, Tuple
+
+from pip._internal.utils.misc import (
+    HiddenText,
+    display_path,
+    is_console_interactive,
+    is_installable_dir,
+    split_auth_from_netloc,
+)
+from pip._internal.utils.subprocess import CommandArgs, make_command
+from pip._internal.vcs.versioncontrol import (
+    AuthInfo,
+    RemoteNotFoundError,
+    RevOptions,
+    VersionControl,
+    vcs,
+)
+
+logger = logging.getLogger(__name__)
+
+_svn_xml_url_re = re.compile('url="([^"]+)"')
+_svn_rev_re = re.compile(r'committed-rev="(\d+)"')
+_svn_info_xml_rev_re = re.compile(r'\s*revision="(\d+)"')
+_svn_info_xml_url_re = re.compile(r"(.*)")
+
+
+class Subversion(VersionControl):
+    name = "svn"
+    dirname = ".svn"
+    repo_name = "checkout"
+    schemes = ("svn+ssh", "svn+http", "svn+https", "svn+svn", "svn+file")
+
+    @classmethod
+    def should_add_vcs_url_prefix(cls, remote_url: str) -> bool:
+        return True
+
+    @staticmethod
+    def get_base_rev_args(rev: str) -> List[str]:
+        return ["-r", rev]
+
+    @classmethod
+    def get_revision(cls, location: str) -> str:
+        """
+        Return the maximum revision for all files under a given location
+        """
+        # Note: taken from setuptools.command.egg_info
+        revision = 0
+
+        for base, dirs, _ in os.walk(location):
+            if cls.dirname not in dirs:
+                dirs[:] = []
+                continue  # no sense walking uncontrolled subdirs
+            dirs.remove(cls.dirname)
+            entries_fn = os.path.join(base, cls.dirname, "entries")
+            if not os.path.exists(entries_fn):
+                # FIXME: should we warn?
+                continue
+
+            dirurl, localrev = cls._get_svn_url_rev(base)
+
+            if base == location:
+                assert dirurl is not None
+                base = dirurl + "/"  # save the root url
+            elif not dirurl or not dirurl.startswith(base):
+                dirs[:] = []
+                continue  # not part of the same svn tree, skip it
+            revision = max(revision, localrev)
+        return str(revision)
+
+    @classmethod
+    def get_netloc_and_auth(
+        cls, netloc: str, scheme: str
+    ) -> Tuple[str, Tuple[Optional[str], Optional[str]]]:
+        """
+        This override allows the auth information to be passed to svn via the
+        --username and --password options instead of via the URL.
+        """
+        if scheme == "ssh":
+            # The --username and --password options can't be used for
+            # svn+ssh URLs, so keep the auth information in the URL.
+            return super().get_netloc_and_auth(netloc, scheme)
+
+        return split_auth_from_netloc(netloc)
+
+    @classmethod
+    def get_url_rev_and_auth(cls, url: str) -> Tuple[str, Optional[str], AuthInfo]:
+        # hotfix the URL scheme after removing svn+ from svn+ssh:// readd it
+        url, rev, user_pass = super().get_url_rev_and_auth(url)
+        if url.startswith("ssh://"):
+            url = "svn+" + url
+        return url, rev, user_pass
+
+    @staticmethod
+    def make_rev_args(
+        username: Optional[str], password: Optional[HiddenText]
+    ) -> CommandArgs:
+        extra_args: CommandArgs = []
+        if username:
+            extra_args += ["--username", username]
+        if password:
+            extra_args += ["--password", password]
+
+        return extra_args
+
+    @classmethod
+    def get_remote_url(cls, location: str) -> str:
+        # In cases where the source is in a subdirectory, we have to look up in
+        # the location until we find a valid project root.
+        orig_location = location
+        while not is_installable_dir(location):
+            last_location = location
+            location = os.path.dirname(location)
+            if location == last_location:
+                # We've traversed up to the root of the filesystem without
+                # finding a Python project.
+                logger.warning(
+                    "Could not find Python project for directory %s (tried all "
+                    "parent directories)",
+                    orig_location,
+                )
+                raise RemoteNotFoundError
+
+        url, _rev = cls._get_svn_url_rev(location)
+        if url is None:
+            raise RemoteNotFoundError
+
+        return url
+
+    @classmethod
+    def _get_svn_url_rev(cls, location: str) -> Tuple[Optional[str], int]:
+        from pip._internal.exceptions import InstallationError
+
+        entries_path = os.path.join(location, cls.dirname, "entries")
+        if os.path.exists(entries_path):
+            with open(entries_path) as f:
+                data = f.read()
+        else:  # subversion >= 1.7 does not have the 'entries' file
+            data = ""
+
+        url = None
+        if data.startswith("8") or data.startswith("9") or data.startswith("10"):
+            entries = list(map(str.splitlines, data.split("\n\x0c\n")))
+            del entries[0][0]  # get rid of the '8'
+            url = entries[0][3]
+            revs = [int(d[9]) for d in entries if len(d) > 9 and d[9]] + [0]
+        elif data.startswith("= 1.7
+                # Note that using get_remote_call_options is not necessary here
+                # because `svn info` is being run against a local directory.
+                # We don't need to worry about making sure interactive mode
+                # is being used to prompt for passwords, because passwords
+                # are only potentially needed for remote server requests.
+                xml = cls.run_command(
+                    ["info", "--xml", location],
+                    show_stdout=False,
+                    stdout_only=True,
+                )
+                match = _svn_info_xml_url_re.search(xml)
+                assert match is not None
+                url = match.group(1)
+                revs = [int(m.group(1)) for m in _svn_info_xml_rev_re.finditer(xml)]
+            except InstallationError:
+                url, revs = None, []
+
+        if revs:
+            rev = max(revs)
+        else:
+            rev = 0
+
+        return url, rev
+
+    @classmethod
+    def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool:
+        """Always assume the versions don't match"""
+        return False
+
+    def __init__(self, use_interactive: bool = None) -> None:
+        if use_interactive is None:
+            use_interactive = is_console_interactive()
+        self.use_interactive = use_interactive
+
+        # This member is used to cache the fetched version of the current
+        # ``svn`` client.
+        # Special value definitions:
+        #   None: Not evaluated yet.
+        #   Empty tuple: Could not parse version.
+        self._vcs_version: Optional[Tuple[int, ...]] = None
+
+        super().__init__()
+
+    def call_vcs_version(self) -> Tuple[int, ...]:
+        """Query the version of the currently installed Subversion client.
+
+        :return: A tuple containing the parts of the version information or
+            ``()`` if the version returned from ``svn`` could not be parsed.
+        :raises: BadCommand: If ``svn`` is not installed.
+        """
+        # Example versions:
+        #   svn, version 1.10.3 (r1842928)
+        #      compiled Feb 25 2019, 14:20:39 on x86_64-apple-darwin17.0.0
+        #   svn, version 1.7.14 (r1542130)
+        #      compiled Mar 28 2018, 08:49:13 on x86_64-pc-linux-gnu
+        #   svn, version 1.12.0-SlikSvn (SlikSvn/1.12.0)
+        #      compiled May 28 2019, 13:44:56 on x86_64-microsoft-windows6.2
+        version_prefix = "svn, version "
+        version = self.run_command(["--version"], show_stdout=False, stdout_only=True)
+        if not version.startswith(version_prefix):
+            return ()
+
+        version = version[len(version_prefix) :].split()[0]
+        version_list = version.partition("-")[0].split(".")
+        try:
+            parsed_version = tuple(map(int, version_list))
+        except ValueError:
+            return ()
+
+        return parsed_version
+
+    def get_vcs_version(self) -> Tuple[int, ...]:
+        """Return the version of the currently installed Subversion client.
+
+        If the version of the Subversion client has already been queried,
+        a cached value will be used.
+
+        :return: A tuple containing the parts of the version information or
+            ``()`` if the version returned from ``svn`` could not be parsed.
+        :raises: BadCommand: If ``svn`` is not installed.
+        """
+        if self._vcs_version is not None:
+            # Use cached version, if available.
+            # If parsing the version failed previously (empty tuple),
+            # do not attempt to parse it again.
+            return self._vcs_version
+
+        vcs_version = self.call_vcs_version()
+        self._vcs_version = vcs_version
+        return vcs_version
+
+    def get_remote_call_options(self) -> CommandArgs:
+        """Return options to be used on calls to Subversion that contact the server.
+
+        These options are applicable for the following ``svn`` subcommands used
+        in this class.
+
+            - checkout
+            - switch
+            - update
+
+        :return: A list of command line arguments to pass to ``svn``.
+        """
+        if not self.use_interactive:
+            # --non-interactive switch is available since Subversion 0.14.4.
+            # Subversion < 1.8 runs in interactive mode by default.
+            return ["--non-interactive"]
+
+        svn_version = self.get_vcs_version()
+        # By default, Subversion >= 1.8 runs in non-interactive mode if
+        # stdin is not a TTY. Since that is how pip invokes SVN, in
+        # call_subprocess(), pip must pass --force-interactive to ensure
+        # the user can be prompted for a password, if required.
+        #   SVN added the --force-interactive option in SVN 1.8. Since
+        # e.g. RHEL/CentOS 7, which is supported until 2024, ships with
+        # SVN 1.7, pip should continue to support SVN 1.7. Therefore, pip
+        # can't safely add the option if the SVN version is < 1.8 (or unknown).
+        if svn_version >= (1, 8):
+            return ["--force-interactive"]
+
+        return []
+
+    def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        rev_display = rev_options.to_display()
+        logger.info(
+            "Checking out %s%s to %s",
+            url,
+            rev_display,
+            display_path(dest),
+        )
+        cmd_args = make_command(
+            "checkout",
+            "-q",
+            self.get_remote_call_options(),
+            rev_options.to_args(),
+            url,
+            dest,
+        )
+        self.run_command(cmd_args)
+
+    def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        cmd_args = make_command(
+            "switch",
+            self.get_remote_call_options(),
+            rev_options.to_args(),
+            url,
+            dest,
+        )
+        self.run_command(cmd_args)
+
+    def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        cmd_args = make_command(
+            "update",
+            self.get_remote_call_options(),
+            rev_options.to_args(),
+            dest,
+        )
+        self.run_command(cmd_args)
+
+
+vcs.register(Subversion)
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/vcs/versioncontrol.py b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/versioncontrol.py
new file mode 100644
index 0000000..1139051
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/vcs/versioncontrol.py
@@ -0,0 +1,693 @@
+"""Handles all VCS (version control) support"""
+
+import logging
+import os
+import shutil
+import sys
+import urllib.parse
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Dict,
+    Iterable,
+    Iterator,
+    List,
+    Mapping,
+    Optional,
+    Tuple,
+    Type,
+    Union,
+)
+
+from pip._internal.cli.spinners import SpinnerInterface
+from pip._internal.exceptions import BadCommand, InstallationError
+from pip._internal.utils.misc import (
+    HiddenText,
+    ask_path_exists,
+    backup_dir,
+    display_path,
+    hide_url,
+    hide_value,
+    is_installable_dir,
+    rmtree,
+)
+from pip._internal.utils.subprocess import CommandArgs, call_subprocess, make_command
+from pip._internal.utils.urls import get_url_scheme
+
+if TYPE_CHECKING:
+    # Literal was introduced in Python 3.8.
+    #
+    # TODO: Remove `if TYPE_CHECKING` when dropping support for Python 3.7.
+    from typing import Literal
+
+
+__all__ = ["vcs"]
+
+
+logger = logging.getLogger(__name__)
+
+AuthInfo = Tuple[Optional[str], Optional[str]]
+
+
+def is_url(name: str) -> bool:
+    """
+    Return true if the name looks like a URL.
+    """
+    scheme = get_url_scheme(name)
+    if scheme is None:
+        return False
+    return scheme in ["http", "https", "file", "ftp"] + vcs.all_schemes
+
+
+def make_vcs_requirement_url(
+    repo_url: str, rev: str, project_name: str, subdir: Optional[str] = None
+) -> str:
+    """
+    Return the URL for a VCS requirement.
+
+    Args:
+      repo_url: the remote VCS url, with any needed VCS prefix (e.g. "git+").
+      project_name: the (unescaped) project name.
+    """
+    egg_project_name = project_name.replace("-", "_")
+    req = f"{repo_url}@{rev}#egg={egg_project_name}"
+    if subdir:
+        req += f"&subdirectory={subdir}"
+
+    return req
+
+
+def find_path_to_project_root_from_repo_root(
+    location: str, repo_root: str
+) -> Optional[str]:
+    """
+    Find the the Python project's root by searching up the filesystem from
+    `location`. Return the path to project root relative to `repo_root`.
+    Return None if the project root is `repo_root`, or cannot be found.
+    """
+    # find project root.
+    orig_location = location
+    while not is_installable_dir(location):
+        last_location = location
+        location = os.path.dirname(location)
+        if location == last_location:
+            # We've traversed up to the root of the filesystem without
+            # finding a Python project.
+            logger.warning(
+                "Could not find a Python project for directory %s (tried all "
+                "parent directories)",
+                orig_location,
+            )
+            return None
+
+    if os.path.samefile(repo_root, location):
+        return None
+
+    return os.path.relpath(location, repo_root)
+
+
+class RemoteNotFoundError(Exception):
+    pass
+
+
+class RemoteNotValidError(Exception):
+    def __init__(self, url: str):
+        super().__init__(url)
+        self.url = url
+
+
+class RevOptions:
+
+    """
+    Encapsulates a VCS-specific revision to install, along with any VCS
+    install options.
+
+    Instances of this class should be treated as if immutable.
+    """
+
+    def __init__(
+        self,
+        vc_class: Type["VersionControl"],
+        rev: Optional[str] = None,
+        extra_args: Optional[CommandArgs] = None,
+    ) -> None:
+        """
+        Args:
+          vc_class: a VersionControl subclass.
+          rev: the name of the revision to install.
+          extra_args: a list of extra options.
+        """
+        if extra_args is None:
+            extra_args = []
+
+        self.extra_args = extra_args
+        self.rev = rev
+        self.vc_class = vc_class
+        self.branch_name: Optional[str] = None
+
+    def __repr__(self) -> str:
+        return f""
+
+    @property
+    def arg_rev(self) -> Optional[str]:
+        if self.rev is None:
+            return self.vc_class.default_arg_rev
+
+        return self.rev
+
+    def to_args(self) -> CommandArgs:
+        """
+        Return the VCS-specific command arguments.
+        """
+        args: CommandArgs = []
+        rev = self.arg_rev
+        if rev is not None:
+            args += self.vc_class.get_base_rev_args(rev)
+        args += self.extra_args
+
+        return args
+
+    def to_display(self) -> str:
+        if not self.rev:
+            return ""
+
+        return f" (to revision {self.rev})"
+
+    def make_new(self, rev: str) -> "RevOptions":
+        """
+        Make a copy of the current instance, but with a new rev.
+
+        Args:
+          rev: the name of the revision for the new object.
+        """
+        return self.vc_class.make_rev_options(rev, extra_args=self.extra_args)
+
+
+class VcsSupport:
+    _registry: Dict[str, "VersionControl"] = {}
+    schemes = ["ssh", "git", "hg", "bzr", "sftp", "svn"]
+
+    def __init__(self) -> None:
+        # Register more schemes with urlparse for various version control
+        # systems
+        urllib.parse.uses_netloc.extend(self.schemes)
+        super().__init__()
+
+    def __iter__(self) -> Iterator[str]:
+        return self._registry.__iter__()
+
+    @property
+    def backends(self) -> List["VersionControl"]:
+        return list(self._registry.values())
+
+    @property
+    def dirnames(self) -> List[str]:
+        return [backend.dirname for backend in self.backends]
+
+    @property
+    def all_schemes(self) -> List[str]:
+        schemes: List[str] = []
+        for backend in self.backends:
+            schemes.extend(backend.schemes)
+        return schemes
+
+    def register(self, cls: Type["VersionControl"]) -> None:
+        if not hasattr(cls, "name"):
+            logger.warning("Cannot register VCS %s", cls.__name__)
+            return
+        if cls.name not in self._registry:
+            self._registry[cls.name] = cls()
+            logger.debug("Registered VCS backend: %s", cls.name)
+
+    def unregister(self, name: str) -> None:
+        if name in self._registry:
+            del self._registry[name]
+
+    def get_backend_for_dir(self, location: str) -> Optional["VersionControl"]:
+        """
+        Return a VersionControl object if a repository of that type is found
+        at the given directory.
+        """
+        vcs_backends = {}
+        for vcs_backend in self._registry.values():
+            repo_path = vcs_backend.get_repository_root(location)
+            if not repo_path:
+                continue
+            logger.debug("Determine that %s uses VCS: %s", location, vcs_backend.name)
+            vcs_backends[repo_path] = vcs_backend
+
+        if not vcs_backends:
+            return None
+
+        # Choose the VCS in the inner-most directory. Since all repository
+        # roots found here would be either `location` or one of its
+        # parents, the longest path should have the most path components,
+        # i.e. the backend representing the inner-most repository.
+        inner_most_repo_path = max(vcs_backends, key=len)
+        return vcs_backends[inner_most_repo_path]
+
+    def get_backend_for_scheme(self, scheme: str) -> Optional["VersionControl"]:
+        """
+        Return a VersionControl object or None.
+        """
+        for vcs_backend in self._registry.values():
+            if scheme in vcs_backend.schemes:
+                return vcs_backend
+        return None
+
+    def get_backend(self, name: str) -> Optional["VersionControl"]:
+        """
+        Return a VersionControl object or None.
+        """
+        name = name.lower()
+        return self._registry.get(name)
+
+
+vcs = VcsSupport()
+
+
+class VersionControl:
+    name = ""
+    dirname = ""
+    repo_name = ""
+    # List of supported schemes for this Version Control
+    schemes: Tuple[str, ...] = ()
+    # Iterable of environment variable names to pass to call_subprocess().
+    unset_environ: Tuple[str, ...] = ()
+    default_arg_rev: Optional[str] = None
+
+    @classmethod
+    def should_add_vcs_url_prefix(cls, remote_url: str) -> bool:
+        """
+        Return whether the vcs prefix (e.g. "git+") should be added to a
+        repository's remote url when used in a requirement.
+        """
+        return not remote_url.lower().startswith(f"{cls.name}:")
+
+    @classmethod
+    def get_subdirectory(cls, location: str) -> Optional[str]:
+        """
+        Return the path to Python project root, relative to the repo root.
+        Return None if the project root is in the repo root.
+        """
+        return None
+
+    @classmethod
+    def get_requirement_revision(cls, repo_dir: str) -> str:
+        """
+        Return the revision string that should be used in a requirement.
+        """
+        return cls.get_revision(repo_dir)
+
+    @classmethod
+    def get_src_requirement(cls, repo_dir: str, project_name: str) -> str:
+        """
+        Return the requirement string to use to redownload the files
+        currently at the given repository directory.
+
+        Args:
+          project_name: the (unescaped) project name.
+
+        The return value has a form similar to the following:
+
+            {repository_url}@{revision}#egg={project_name}
+        """
+        repo_url = cls.get_remote_url(repo_dir)
+
+        if cls.should_add_vcs_url_prefix(repo_url):
+            repo_url = f"{cls.name}+{repo_url}"
+
+        revision = cls.get_requirement_revision(repo_dir)
+        subdir = cls.get_subdirectory(repo_dir)
+        req = make_vcs_requirement_url(repo_url, revision, project_name, subdir=subdir)
+
+        return req
+
+    @staticmethod
+    def get_base_rev_args(rev: str) -> List[str]:
+        """
+        Return the base revision arguments for a vcs command.
+
+        Args:
+          rev: the name of a revision to install.  Cannot be None.
+        """
+        raise NotImplementedError
+
+    def is_immutable_rev_checkout(self, url: str, dest: str) -> bool:
+        """
+        Return true if the commit hash checked out at dest matches
+        the revision in url.
+
+        Always return False, if the VCS does not support immutable commit
+        hashes.
+
+        This method does not check if there are local uncommitted changes
+        in dest after checkout, as pip currently has no use case for that.
+        """
+        return False
+
+    @classmethod
+    def make_rev_options(
+        cls, rev: Optional[str] = None, extra_args: Optional[CommandArgs] = None
+    ) -> RevOptions:
+        """
+        Return a RevOptions object.
+
+        Args:
+          rev: the name of a revision to install.
+          extra_args: a list of extra options.
+        """
+        return RevOptions(cls, rev, extra_args=extra_args)
+
+    @classmethod
+    def _is_local_repository(cls, repo: str) -> bool:
+        """
+        posix absolute paths start with os.path.sep,
+        win32 ones start with drive (like c:\\folder)
+        """
+        drive, tail = os.path.splitdrive(repo)
+        return repo.startswith(os.path.sep) or bool(drive)
+
+    @classmethod
+    def get_netloc_and_auth(
+        cls, netloc: str, scheme: str
+    ) -> Tuple[str, Tuple[Optional[str], Optional[str]]]:
+        """
+        Parse the repository URL's netloc, and return the new netloc to use
+        along with auth information.
+
+        Args:
+          netloc: the original repository URL netloc.
+          scheme: the repository URL's scheme without the vcs prefix.
+
+        This is mainly for the Subversion class to override, so that auth
+        information can be provided via the --username and --password options
+        instead of through the URL.  For other subclasses like Git without
+        such an option, auth information must stay in the URL.
+
+        Returns: (netloc, (username, password)).
+        """
+        return netloc, (None, None)
+
+    @classmethod
+    def get_url_rev_and_auth(cls, url: str) -> Tuple[str, Optional[str], AuthInfo]:
+        """
+        Parse the repository URL to use, and return the URL, revision,
+        and auth info to use.
+
+        Returns: (url, rev, (username, password)).
+        """
+        scheme, netloc, path, query, frag = urllib.parse.urlsplit(url)
+        if "+" not in scheme:
+            raise ValueError(
+                "Sorry, {!r} is a malformed VCS url. "
+                "The format is +://, "
+                "e.g. svn+http://myrepo/svn/MyApp#egg=MyApp".format(url)
+            )
+        # Remove the vcs prefix.
+        scheme = scheme.split("+", 1)[1]
+        netloc, user_pass = cls.get_netloc_and_auth(netloc, scheme)
+        rev = None
+        if "@" in path:
+            path, rev = path.rsplit("@", 1)
+            if not rev:
+                raise InstallationError(
+                    "The URL {!r} has an empty revision (after @) "
+                    "which is not supported. Include a revision after @ "
+                    "or remove @ from the URL.".format(url)
+                )
+        url = urllib.parse.urlunsplit((scheme, netloc, path, query, ""))
+        return url, rev, user_pass
+
+    @staticmethod
+    def make_rev_args(
+        username: Optional[str], password: Optional[HiddenText]
+    ) -> CommandArgs:
+        """
+        Return the RevOptions "extra arguments" to use in obtain().
+        """
+        return []
+
+    def get_url_rev_options(self, url: HiddenText) -> Tuple[HiddenText, RevOptions]:
+        """
+        Return the URL and RevOptions object to use in obtain(),
+        as a tuple (url, rev_options).
+        """
+        secret_url, rev, user_pass = self.get_url_rev_and_auth(url.secret)
+        username, secret_password = user_pass
+        password: Optional[HiddenText] = None
+        if secret_password is not None:
+            password = hide_value(secret_password)
+        extra_args = self.make_rev_args(username, password)
+        rev_options = self.make_rev_options(rev, extra_args=extra_args)
+
+        return hide_url(secret_url), rev_options
+
+    @staticmethod
+    def normalize_url(url: str) -> str:
+        """
+        Normalize a URL for comparison by unquoting it and removing any
+        trailing slash.
+        """
+        return urllib.parse.unquote(url).rstrip("/")
+
+    @classmethod
+    def compare_urls(cls, url1: str, url2: str) -> bool:
+        """
+        Compare two repo URLs for identity, ignoring incidental differences.
+        """
+        return cls.normalize_url(url1) == cls.normalize_url(url2)
+
+    def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        """
+        Fetch a revision from a repository, in the case that this is the
+        first fetch from the repository.
+
+        Args:
+          dest: the directory to fetch the repository to.
+          rev_options: a RevOptions object.
+        """
+        raise NotImplementedError
+
+    def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        """
+        Switch the repo at ``dest`` to point to ``URL``.
+
+        Args:
+          rev_options: a RevOptions object.
+        """
+        raise NotImplementedError
+
+    def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None:
+        """
+        Update an already-existing repo to the given ``rev_options``.
+
+        Args:
+          rev_options: a RevOptions object.
+        """
+        raise NotImplementedError
+
+    @classmethod
+    def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool:
+        """
+        Return whether the id of the current commit equals the given name.
+
+        Args:
+          dest: the repository directory.
+          name: a string name.
+        """
+        raise NotImplementedError
+
+    def obtain(self, dest: str, url: HiddenText) -> None:
+        """
+        Install or update in editable mode the package represented by this
+        VersionControl object.
+
+        :param dest: the repository directory in which to install or update.
+        :param url: the repository URL starting with a vcs prefix.
+        """
+        url, rev_options = self.get_url_rev_options(url)
+
+        if not os.path.exists(dest):
+            self.fetch_new(dest, url, rev_options)
+            return
+
+        rev_display = rev_options.to_display()
+        if self.is_repository_directory(dest):
+            existing_url = self.get_remote_url(dest)
+            if self.compare_urls(existing_url, url.secret):
+                logger.debug(
+                    "%s in %s exists, and has correct URL (%s)",
+                    self.repo_name.title(),
+                    display_path(dest),
+                    url,
+                )
+                if not self.is_commit_id_equal(dest, rev_options.rev):
+                    logger.info(
+                        "Updating %s %s%s",
+                        display_path(dest),
+                        self.repo_name,
+                        rev_display,
+                    )
+                    self.update(dest, url, rev_options)
+                else:
+                    logger.info("Skipping because already up-to-date.")
+                return
+
+            logger.warning(
+                "%s %s in %s exists with URL %s",
+                self.name,
+                self.repo_name,
+                display_path(dest),
+                existing_url,
+            )
+            prompt = ("(s)witch, (i)gnore, (w)ipe, (b)ackup ", ("s", "i", "w", "b"))
+        else:
+            logger.warning(
+                "Directory %s already exists, and is not a %s %s.",
+                dest,
+                self.name,
+                self.repo_name,
+            )
+            # https://github.com/python/mypy/issues/1174
+            prompt = ("(i)gnore, (w)ipe, (b)ackup ", ("i", "w", "b"))  # type: ignore
+
+        logger.warning(
+            "The plan is to install the %s repository %s",
+            self.name,
+            url,
+        )
+        response = ask_path_exists("What to do?  {}".format(prompt[0]), prompt[1])
+
+        if response == "a":
+            sys.exit(-1)
+
+        if response == "w":
+            logger.warning("Deleting %s", display_path(dest))
+            rmtree(dest)
+            self.fetch_new(dest, url, rev_options)
+            return
+
+        if response == "b":
+            dest_dir = backup_dir(dest)
+            logger.warning("Backing up %s to %s", display_path(dest), dest_dir)
+            shutil.move(dest, dest_dir)
+            self.fetch_new(dest, url, rev_options)
+            return
+
+        # Do nothing if the response is "i".
+        if response == "s":
+            logger.info(
+                "Switching %s %s to %s%s",
+                self.repo_name,
+                display_path(dest),
+                url,
+                rev_display,
+            )
+            self.switch(dest, url, rev_options)
+
+    def unpack(self, location: str, url: HiddenText) -> None:
+        """
+        Clean up current location and download the url repository
+        (and vcs infos) into location
+
+        :param url: the repository URL starting with a vcs prefix.
+        """
+        if os.path.exists(location):
+            rmtree(location)
+        self.obtain(location, url=url)
+
+    @classmethod
+    def get_remote_url(cls, location: str) -> str:
+        """
+        Return the url used at location
+
+        Raises RemoteNotFoundError if the repository does not have a remote
+        url configured.
+        """
+        raise NotImplementedError
+
+    @classmethod
+    def get_revision(cls, location: str) -> str:
+        """
+        Return the current commit id of the files at the given location.
+        """
+        raise NotImplementedError
+
+    @classmethod
+    def run_command(
+        cls,
+        cmd: Union[List[str], CommandArgs],
+        show_stdout: bool = True,
+        cwd: Optional[str] = None,
+        on_returncode: 'Literal["raise", "warn", "ignore"]' = "raise",
+        extra_ok_returncodes: Optional[Iterable[int]] = None,
+        command_desc: Optional[str] = None,
+        extra_environ: Optional[Mapping[str, Any]] = None,
+        spinner: Optional[SpinnerInterface] = None,
+        log_failed_cmd: bool = True,
+        stdout_only: bool = False,
+    ) -> str:
+        """
+        Run a VCS subcommand
+        This is simply a wrapper around call_subprocess that adds the VCS
+        command name, and checks that the VCS is available
+        """
+        cmd = make_command(cls.name, *cmd)
+        try:
+            return call_subprocess(
+                cmd,
+                show_stdout,
+                cwd,
+                on_returncode=on_returncode,
+                extra_ok_returncodes=extra_ok_returncodes,
+                command_desc=command_desc,
+                extra_environ=extra_environ,
+                unset_environ=cls.unset_environ,
+                spinner=spinner,
+                log_failed_cmd=log_failed_cmd,
+                stdout_only=stdout_only,
+            )
+        except FileNotFoundError:
+            # errno.ENOENT = no such file or directory
+            # In other words, the VCS executable isn't available
+            raise BadCommand(
+                f"Cannot find command {cls.name!r} - do you have "
+                f"{cls.name!r} installed and in your PATH?"
+            )
+        except PermissionError:
+            # errno.EACCES = Permission denied
+            # This error occurs, for instance, when the command is installed
+            # only for another user. So, the current user don't have
+            # permission to call the other user command.
+            raise BadCommand(
+                f"No permission to execute {cls.name!r} - install it "
+                f"locally, globally (ask admin), or check your PATH. "
+                f"See possible solutions at "
+                f"https://pip.pypa.io/en/latest/reference/pip_freeze/"
+                f"#fixing-permission-denied."
+            )
+
+    @classmethod
+    def is_repository_directory(cls, path: str) -> bool:
+        """
+        Return whether a directory path is a repository directory.
+        """
+        logger.debug("Checking in %s for %s (%s)...", path, cls.dirname, cls.name)
+        return os.path.exists(os.path.join(path, cls.dirname))
+
+    @classmethod
+    def get_repository_root(cls, location: str) -> Optional[str]:
+        """
+        Return the "root" (top-level) directory controlled by the vcs,
+        or `None` if the directory is not in any.
+
+        It is meant to be overridden to implement smarter detection
+        mechanisms for specific vcs.
+
+        This can do more than is_repository_directory() alone. For
+        example, the Git override checks that Git is actually available.
+        """
+        if cls.is_repository_directory(location):
+            return location
+        return None
diff --git a/utils/python-venv/Lib/site-packages/pip/_internal/wheel_builder.py b/utils/python-venv/Lib/site-packages/pip/_internal/wheel_builder.py
new file mode 100644
index 0000000..a9123a0
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_internal/wheel_builder.py
@@ -0,0 +1,375 @@
+"""Orchestrator for building wheels from InstallRequirements.
+"""
+
+import logging
+import os.path
+import re
+import shutil
+from typing import Any, Callable, Iterable, List, Optional, Tuple
+
+from pip._vendor.packaging.utils import canonicalize_name, canonicalize_version
+from pip._vendor.packaging.version import InvalidVersion, Version
+
+from pip._internal.cache import WheelCache
+from pip._internal.exceptions import InvalidWheelFilename, UnsupportedWheel
+from pip._internal.metadata import FilesystemWheel, get_wheel_distribution
+from pip._internal.models.link import Link
+from pip._internal.models.wheel import Wheel
+from pip._internal.operations.build.wheel import build_wheel_pep517
+from pip._internal.operations.build.wheel_editable import build_wheel_editable
+from pip._internal.operations.build.wheel_legacy import build_wheel_legacy
+from pip._internal.req.req_install import InstallRequirement
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import ensure_dir, hash_file, is_wheel_installed
+from pip._internal.utils.setuptools_build import make_setuptools_clean_args
+from pip._internal.utils.subprocess import call_subprocess
+from pip._internal.utils.temp_dir import TempDirectory
+from pip._internal.utils.urls import path_to_url
+from pip._internal.vcs import vcs
+
+logger = logging.getLogger(__name__)
+
+_egg_info_re = re.compile(r"([a-z0-9_.]+)-([a-z0-9_.!+-]+)", re.IGNORECASE)
+
+BinaryAllowedPredicate = Callable[[InstallRequirement], bool]
+BuildResult = Tuple[List[InstallRequirement], List[InstallRequirement]]
+
+
+def _contains_egg_info(s: str) -> bool:
+    """Determine whether the string looks like an egg_info.
+
+    :param s: The string to parse. E.g. foo-2.1
+    """
+    return bool(_egg_info_re.search(s))
+
+
+def _should_build(
+    req: InstallRequirement,
+    need_wheel: bool,
+    check_binary_allowed: BinaryAllowedPredicate,
+) -> bool:
+    """Return whether an InstallRequirement should be built into a wheel."""
+    if req.constraint:
+        # never build requirements that are merely constraints
+        return False
+    if req.is_wheel:
+        if need_wheel:
+            logger.info(
+                "Skipping %s, due to already being wheel.",
+                req.name,
+            )
+        return False
+
+    if need_wheel:
+        # i.e. pip wheel, not pip install
+        return True
+
+    # From this point, this concerns the pip install command only
+    # (need_wheel=False).
+
+    if not req.source_dir:
+        return False
+
+    if req.editable:
+        # we only build PEP 660 editable requirements
+        return req.supports_pyproject_editable()
+
+    if req.use_pep517:
+        return True
+
+    if not check_binary_allowed(req):
+        logger.info(
+            "Skipping wheel build for %s, due to binaries being disabled for it.",
+            req.name,
+        )
+        return False
+
+    if not is_wheel_installed():
+        # we don't build legacy requirements if wheel is not installed
+        logger.info(
+            "Using legacy 'setup.py install' for %s, "
+            "since package 'wheel' is not installed.",
+            req.name,
+        )
+        return False
+
+    return True
+
+
+def should_build_for_wheel_command(
+    req: InstallRequirement,
+) -> bool:
+    return _should_build(req, need_wheel=True, check_binary_allowed=_always_true)
+
+
+def should_build_for_install_command(
+    req: InstallRequirement,
+    check_binary_allowed: BinaryAllowedPredicate,
+) -> bool:
+    return _should_build(
+        req, need_wheel=False, check_binary_allowed=check_binary_allowed
+    )
+
+
+def _should_cache(
+    req: InstallRequirement,
+) -> Optional[bool]:
+    """
+    Return whether a built InstallRequirement can be stored in the persistent
+    wheel cache, assuming the wheel cache is available, and _should_build()
+    has determined a wheel needs to be built.
+    """
+    if req.editable or not req.source_dir:
+        # never cache editable requirements
+        return False
+
+    if req.link and req.link.is_vcs:
+        # VCS checkout. Do not cache
+        # unless it points to an immutable commit hash.
+        assert not req.editable
+        assert req.source_dir
+        vcs_backend = vcs.get_backend_for_scheme(req.link.scheme)
+        assert vcs_backend
+        if vcs_backend.is_immutable_rev_checkout(req.link.url, req.source_dir):
+            return True
+        return False
+
+    assert req.link
+    base, ext = req.link.splitext()
+    if _contains_egg_info(base):
+        return True
+
+    # Otherwise, do not cache.
+    return False
+
+
+def _get_cache_dir(
+    req: InstallRequirement,
+    wheel_cache: WheelCache,
+) -> str:
+    """Return the persistent or temporary cache directory where the built
+    wheel need to be stored.
+    """
+    cache_available = bool(wheel_cache.cache_dir)
+    assert req.link
+    if cache_available and _should_cache(req):
+        cache_dir = wheel_cache.get_path_for_link(req.link)
+    else:
+        cache_dir = wheel_cache.get_ephem_path_for_link(req.link)
+    return cache_dir
+
+
+def _always_true(_: Any) -> bool:
+    return True
+
+
+def _verify_one(req: InstallRequirement, wheel_path: str) -> None:
+    canonical_name = canonicalize_name(req.name or "")
+    w = Wheel(os.path.basename(wheel_path))
+    if canonicalize_name(w.name) != canonical_name:
+        raise InvalidWheelFilename(
+            "Wheel has unexpected file name: expected {!r}, "
+            "got {!r}".format(canonical_name, w.name),
+        )
+    dist = get_wheel_distribution(FilesystemWheel(wheel_path), canonical_name)
+    dist_verstr = str(dist.version)
+    if canonicalize_version(dist_verstr) != canonicalize_version(w.version):
+        raise InvalidWheelFilename(
+            "Wheel has unexpected file name: expected {!r}, "
+            "got {!r}".format(dist_verstr, w.version),
+        )
+    metadata_version_value = dist.metadata_version
+    if metadata_version_value is None:
+        raise UnsupportedWheel("Missing Metadata-Version")
+    try:
+        metadata_version = Version(metadata_version_value)
+    except InvalidVersion:
+        msg = f"Invalid Metadata-Version: {metadata_version_value}"
+        raise UnsupportedWheel(msg)
+    if metadata_version >= Version("1.2") and not isinstance(dist.version, Version):
+        raise UnsupportedWheel(
+            "Metadata 1.2 mandates PEP 440 version, "
+            "but {!r} is not".format(dist_verstr)
+        )
+
+
+def _build_one(
+    req: InstallRequirement,
+    output_dir: str,
+    verify: bool,
+    build_options: List[str],
+    global_options: List[str],
+    editable: bool,
+) -> Optional[str]:
+    """Build one wheel.
+
+    :return: The filename of the built wheel, or None if the build failed.
+    """
+    artifact = "editable" if editable else "wheel"
+    try:
+        ensure_dir(output_dir)
+    except OSError as e:
+        logger.warning(
+            "Building %s for %s failed: %s",
+            artifact,
+            req.name,
+            e,
+        )
+        return None
+
+    # Install build deps into temporary directory (PEP 518)
+    with req.build_env:
+        wheel_path = _build_one_inside_env(
+            req, output_dir, build_options, global_options, editable
+        )
+    if wheel_path and verify:
+        try:
+            _verify_one(req, wheel_path)
+        except (InvalidWheelFilename, UnsupportedWheel) as e:
+            logger.warning("Built %s for %s is invalid: %s", artifact, req.name, e)
+            return None
+    return wheel_path
+
+
+def _build_one_inside_env(
+    req: InstallRequirement,
+    output_dir: str,
+    build_options: List[str],
+    global_options: List[str],
+    editable: bool,
+) -> Optional[str]:
+    with TempDirectory(kind="wheel") as temp_dir:
+        assert req.name
+        if req.use_pep517:
+            assert req.metadata_directory
+            assert req.pep517_backend
+            if global_options:
+                logger.warning(
+                    "Ignoring --global-option when building %s using PEP 517", req.name
+                )
+            if build_options:
+                logger.warning(
+                    "Ignoring --build-option when building %s using PEP 517", req.name
+                )
+            if editable:
+                wheel_path = build_wheel_editable(
+                    name=req.name,
+                    backend=req.pep517_backend,
+                    metadata_directory=req.metadata_directory,
+                    tempd=temp_dir.path,
+                )
+            else:
+                wheel_path = build_wheel_pep517(
+                    name=req.name,
+                    backend=req.pep517_backend,
+                    metadata_directory=req.metadata_directory,
+                    tempd=temp_dir.path,
+                )
+        else:
+            wheel_path = build_wheel_legacy(
+                name=req.name,
+                setup_py_path=req.setup_py_path,
+                source_dir=req.unpacked_source_directory,
+                global_options=global_options,
+                build_options=build_options,
+                tempd=temp_dir.path,
+            )
+
+        if wheel_path is not None:
+            wheel_name = os.path.basename(wheel_path)
+            dest_path = os.path.join(output_dir, wheel_name)
+            try:
+                wheel_hash, length = hash_file(wheel_path)
+                shutil.move(wheel_path, dest_path)
+                logger.info(
+                    "Created wheel for %s: filename=%s size=%d sha256=%s",
+                    req.name,
+                    wheel_name,
+                    length,
+                    wheel_hash.hexdigest(),
+                )
+                logger.info("Stored in directory: %s", output_dir)
+                return dest_path
+            except Exception as e:
+                logger.warning(
+                    "Building wheel for %s failed: %s",
+                    req.name,
+                    e,
+                )
+        # Ignore return, we can't do anything else useful.
+        if not req.use_pep517:
+            _clean_one_legacy(req, global_options)
+        return None
+
+
+def _clean_one_legacy(req: InstallRequirement, global_options: List[str]) -> bool:
+    clean_args = make_setuptools_clean_args(
+        req.setup_py_path,
+        global_options=global_options,
+    )
+
+    logger.info("Running setup.py clean for %s", req.name)
+    try:
+        call_subprocess(clean_args, cwd=req.source_dir)
+        return True
+    except Exception:
+        logger.error("Failed cleaning build dir for %s", req.name)
+        return False
+
+
+def build(
+    requirements: Iterable[InstallRequirement],
+    wheel_cache: WheelCache,
+    verify: bool,
+    build_options: List[str],
+    global_options: List[str],
+) -> BuildResult:
+    """Build wheels.
+
+    :return: The list of InstallRequirement that succeeded to build and
+        the list of InstallRequirement that failed to build.
+    """
+    if not requirements:
+        return [], []
+
+    # Build the wheels.
+    logger.info(
+        "Building wheels for collected packages: %s",
+        ", ".join(req.name for req in requirements),  # type: ignore
+    )
+
+    with indent_log():
+        build_successes, build_failures = [], []
+        for req in requirements:
+            assert req.name
+            cache_dir = _get_cache_dir(req, wheel_cache)
+            wheel_file = _build_one(
+                req,
+                cache_dir,
+                verify,
+                build_options,
+                global_options,
+                req.editable and req.permit_editable_wheels,
+            )
+            if wheel_file:
+                # Update the link for this.
+                req.link = Link(path_to_url(wheel_file))
+                req.local_file_path = req.link.file_path
+                assert req.link.is_wheel
+                build_successes.append(req)
+            else:
+                build_failures.append(req)
+
+    # notify success/failure
+    if build_successes:
+        logger.info(
+            "Successfully built %s",
+            " ".join([req.name for req in build_successes]),  # type: ignore
+        )
+    if build_failures:
+        logger.info(
+            "Failed to build %s",
+            " ".join([req.name for req in build_failures]),  # type: ignore
+        )
+    # Return a list of requirements that failed to build
+    return build_successes, build_failures
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/__init__.py
new file mode 100644
index 0000000..3843cb0
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/__init__.py
@@ -0,0 +1,111 @@
+"""
+pip._vendor is for vendoring dependencies of pip to prevent needing pip to
+depend on something external.
+
+Files inside of pip._vendor should be considered immutable and should only be
+updated to versions from upstream.
+"""
+from __future__ import absolute_import
+
+import glob
+import os.path
+import sys
+
+# Downstream redistributors which have debundled our dependencies should also
+# patch this value to be true. This will trigger the additional patching
+# to cause things like "six" to be available as pip.
+DEBUNDLED = False
+
+# By default, look in this directory for a bunch of .whl files which we will
+# add to the beginning of sys.path before attempting to import anything. This
+# is done to support downstream re-distributors like Debian and Fedora who
+# wish to create their own Wheels for our dependencies to aid in debundling.
+WHEEL_DIR = os.path.abspath(os.path.dirname(__file__))
+
+
+# Define a small helper function to alias our vendored modules to the real ones
+# if the vendored ones do not exist. This idea of this was taken from
+# https://github.com/kennethreitz/requests/pull/2567.
+def vendored(modulename):
+    vendored_name = "{0}.{1}".format(__name__, modulename)
+
+    try:
+        __import__(modulename, globals(), locals(), level=0)
+    except ImportError:
+        # We can just silently allow import failures to pass here. If we
+        # got to this point it means that ``import pip._vendor.whatever``
+        # failed and so did ``import whatever``. Since we're importing this
+        # upfront in an attempt to alias imports, not erroring here will
+        # just mean we get a regular import error whenever pip *actually*
+        # tries to import one of these modules to use it, which actually
+        # gives us a better error message than we would have otherwise
+        # gotten.
+        pass
+    else:
+        sys.modules[vendored_name] = sys.modules[modulename]
+        base, head = vendored_name.rsplit(".", 1)
+        setattr(sys.modules[base], head, sys.modules[modulename])
+
+
+# If we're operating in a debundled setup, then we want to go ahead and trigger
+# the aliasing of our vendored libraries as well as looking for wheels to add
+# to our sys.path. This will cause all of this code to be a no-op typically
+# however downstream redistributors can enable it in a consistent way across
+# all platforms.
+if DEBUNDLED:
+    # Actually look inside of WHEEL_DIR to find .whl files and add them to the
+    # front of our sys.path.
+    sys.path[:] = glob.glob(os.path.join(WHEEL_DIR, "*.whl")) + sys.path
+
+    # Actually alias all of our vendored dependencies.
+    vendored("cachecontrol")
+    vendored("certifi")
+    vendored("colorama")
+    vendored("distlib")
+    vendored("distro")
+    vendored("html5lib")
+    vendored("six")
+    vendored("six.moves")
+    vendored("six.moves.urllib")
+    vendored("six.moves.urllib.parse")
+    vendored("packaging")
+    vendored("packaging.version")
+    vendored("packaging.specifiers")
+    vendored("pep517")
+    vendored("pkg_resources")
+    vendored("platformdirs")
+    vendored("progress")
+    vendored("requests")
+    vendored("requests.exceptions")
+    vendored("requests.packages")
+    vendored("requests.packages.urllib3")
+    vendored("requests.packages.urllib3._collections")
+    vendored("requests.packages.urllib3.connection")
+    vendored("requests.packages.urllib3.connectionpool")
+    vendored("requests.packages.urllib3.contrib")
+    vendored("requests.packages.urllib3.contrib.ntlmpool")
+    vendored("requests.packages.urllib3.contrib.pyopenssl")
+    vendored("requests.packages.urllib3.exceptions")
+    vendored("requests.packages.urllib3.fields")
+    vendored("requests.packages.urllib3.filepost")
+    vendored("requests.packages.urllib3.packages")
+    vendored("requests.packages.urllib3.packages.ordered_dict")
+    vendored("requests.packages.urllib3.packages.six")
+    vendored("requests.packages.urllib3.packages.ssl_match_hostname")
+    vendored("requests.packages.urllib3.packages.ssl_match_hostname."
+             "_implementation")
+    vendored("requests.packages.urllib3.poolmanager")
+    vendored("requests.packages.urllib3.request")
+    vendored("requests.packages.urllib3.response")
+    vendored("requests.packages.urllib3.util")
+    vendored("requests.packages.urllib3.util.connection")
+    vendored("requests.packages.urllib3.util.request")
+    vendored("requests.packages.urllib3.util.response")
+    vendored("requests.packages.urllib3.util.retry")
+    vendored("requests.packages.urllib3.util.ssl_")
+    vendored("requests.packages.urllib3.util.timeout")
+    vendored("requests.packages.urllib3.util.url")
+    vendored("resolvelib")
+    vendored("tenacity")
+    vendored("tomli")
+    vendored("urllib3")
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/__init__.py
new file mode 100644
index 0000000..a1bbbbe
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/__init__.py
@@ -0,0 +1,11 @@
+"""CacheControl import Interface.
+
+Make it easy to import from cachecontrol without long namespaces.
+"""
+__author__ = "Eric Larson"
+__email__ = "eric@ionrock.org"
+__version__ = "0.12.6"
+
+from .wrapper import CacheControl
+from .adapter import CacheControlAdapter
+from .controller import CacheController
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/_cmd.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/_cmd.py
new file mode 100644
index 0000000..f1e0ad9
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/_cmd.py
@@ -0,0 +1,57 @@
+import logging
+
+from pip._vendor import requests
+
+from pip._vendor.cachecontrol.adapter import CacheControlAdapter
+from pip._vendor.cachecontrol.cache import DictCache
+from pip._vendor.cachecontrol.controller import logger
+
+from argparse import ArgumentParser
+
+
+def setup_logging():
+    logger.setLevel(logging.DEBUG)
+    handler = logging.StreamHandler()
+    logger.addHandler(handler)
+
+
+def get_session():
+    adapter = CacheControlAdapter(
+        DictCache(), cache_etags=True, serializer=None, heuristic=None
+    )
+    sess = requests.Session()
+    sess.mount("http://", adapter)
+    sess.mount("https://", adapter)
+
+    sess.cache_controller = adapter.controller
+    return sess
+
+
+def get_args():
+    parser = ArgumentParser()
+    parser.add_argument("url", help="The URL to try and cache")
+    return parser.parse_args()
+
+
+def main(args=None):
+    args = get_args()
+    sess = get_session()
+
+    # Make a request to get a response
+    resp = sess.get(args.url)
+
+    # Turn on logging
+    setup_logging()
+
+    # try setting the cache
+    sess.cache_controller.cache_response(resp.request, resp.raw)
+
+    # Now try to get it
+    if sess.cache_controller.cached_request(resp.request):
+        print("Cached!")
+    else:
+        print("Not cached :(")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/adapter.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/adapter.py
new file mode 100644
index 0000000..815650e
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/adapter.py
@@ -0,0 +1,133 @@
+import types
+import functools
+import zlib
+
+from pip._vendor.requests.adapters import HTTPAdapter
+
+from .controller import CacheController
+from .cache import DictCache
+from .filewrapper import CallbackFileWrapper
+
+
+class CacheControlAdapter(HTTPAdapter):
+    invalidating_methods = {"PUT", "DELETE"}
+
+    def __init__(
+        self,
+        cache=None,
+        cache_etags=True,
+        controller_class=None,
+        serializer=None,
+        heuristic=None,
+        cacheable_methods=None,
+        *args,
+        **kw
+    ):
+        super(CacheControlAdapter, self).__init__(*args, **kw)
+        self.cache = DictCache() if cache is None else cache
+        self.heuristic = heuristic
+        self.cacheable_methods = cacheable_methods or ("GET",)
+
+        controller_factory = controller_class or CacheController
+        self.controller = controller_factory(
+            self.cache, cache_etags=cache_etags, serializer=serializer
+        )
+
+    def send(self, request, cacheable_methods=None, **kw):
+        """
+        Send a request. Use the request information to see if it
+        exists in the cache and cache the response if we need to and can.
+        """
+        cacheable = cacheable_methods or self.cacheable_methods
+        if request.method in cacheable:
+            try:
+                cached_response = self.controller.cached_request(request)
+            except zlib.error:
+                cached_response = None
+            if cached_response:
+                return self.build_response(request, cached_response, from_cache=True)
+
+            # check for etags and add headers if appropriate
+            request.headers.update(self.controller.conditional_headers(request))
+
+        resp = super(CacheControlAdapter, self).send(request, **kw)
+
+        return resp
+
+    def build_response(
+        self, request, response, from_cache=False, cacheable_methods=None
+    ):
+        """
+        Build a response by making a request or using the cache.
+
+        This will end up calling send and returning a potentially
+        cached response
+        """
+        cacheable = cacheable_methods or self.cacheable_methods
+        if not from_cache and request.method in cacheable:
+            # Check for any heuristics that might update headers
+            # before trying to cache.
+            if self.heuristic:
+                response = self.heuristic.apply(response)
+
+            # apply any expiration heuristics
+            if response.status == 304:
+                # We must have sent an ETag request. This could mean
+                # that we've been expired already or that we simply
+                # have an etag. In either case, we want to try and
+                # update the cache if that is the case.
+                cached_response = self.controller.update_cached_response(
+                    request, response
+                )
+
+                if cached_response is not response:
+                    from_cache = True
+
+                # We are done with the server response, read a
+                # possible response body (compliant servers will
+                # not return one, but we cannot be 100% sure) and
+                # release the connection back to the pool.
+                response.read(decode_content=False)
+                response.release_conn()
+
+                response = cached_response
+
+            # We always cache the 301 responses
+            elif response.status == 301:
+                self.controller.cache_response(request, response)
+            else:
+                # Wrap the response file with a wrapper that will cache the
+                #   response when the stream has been consumed.
+                response._fp = CallbackFileWrapper(
+                    response._fp,
+                    functools.partial(
+                        self.controller.cache_response, request, response
+                    ),
+                )
+                if response.chunked:
+                    super_update_chunk_length = response._update_chunk_length
+
+                    def _update_chunk_length(self):
+                        super_update_chunk_length()
+                        if self.chunk_left == 0:
+                            self._fp._close()
+
+                    response._update_chunk_length = types.MethodType(
+                        _update_chunk_length, response
+                    )
+
+        resp = super(CacheControlAdapter, self).build_response(request, response)
+
+        # See if we should invalidate the cache.
+        if request.method in self.invalidating_methods and resp.ok:
+            cache_url = self.controller.cache_url(request.url)
+            self.cache.delete(cache_url)
+
+        # Give the request a from_cache attr to let people use it
+        resp.from_cache = from_cache
+
+        return resp
+
+    def close(self):
+        self.cache.close()
+        super(CacheControlAdapter, self).close()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/cache.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/cache.py
new file mode 100644
index 0000000..94e0773
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/cache.py
@@ -0,0 +1,39 @@
+"""
+The cache object API for implementing caches. The default is a thread
+safe in-memory dictionary.
+"""
+from threading import Lock
+
+
+class BaseCache(object):
+
+    def get(self, key):
+        raise NotImplementedError()
+
+    def set(self, key, value):
+        raise NotImplementedError()
+
+    def delete(self, key):
+        raise NotImplementedError()
+
+    def close(self):
+        pass
+
+
+class DictCache(BaseCache):
+
+    def __init__(self, init_dict=None):
+        self.lock = Lock()
+        self.data = init_dict or {}
+
+    def get(self, key):
+        return self.data.get(key, None)
+
+    def set(self, key, value):
+        with self.lock:
+            self.data.update({key: value})
+
+    def delete(self, key):
+        with self.lock:
+            if key in self.data:
+                self.data.pop(key)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/caches/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/caches/__init__.py
new file mode 100644
index 0000000..0e1658f
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/caches/__init__.py
@@ -0,0 +1,2 @@
+from .file_cache import FileCache  # noqa
+from .redis_cache import RedisCache  # noqa
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/caches/file_cache.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/caches/file_cache.py
new file mode 100644
index 0000000..607b945
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/caches/file_cache.py
@@ -0,0 +1,146 @@
+import hashlib
+import os
+from textwrap import dedent
+
+from ..cache import BaseCache
+from ..controller import CacheController
+
+try:
+    FileNotFoundError
+except NameError:
+    # py2.X
+    FileNotFoundError = (IOError, OSError)
+
+
+def _secure_open_write(filename, fmode):
+    # We only want to write to this file, so open it in write only mode
+    flags = os.O_WRONLY
+
+    # os.O_CREAT | os.O_EXCL will fail if the file already exists, so we only
+    #  will open *new* files.
+    # We specify this because we want to ensure that the mode we pass is the
+    # mode of the file.
+    flags |= os.O_CREAT | os.O_EXCL
+
+    # Do not follow symlinks to prevent someone from making a symlink that
+    # we follow and insecurely open a cache file.
+    if hasattr(os, "O_NOFOLLOW"):
+        flags |= os.O_NOFOLLOW
+
+    # On Windows we'll mark this file as binary
+    if hasattr(os, "O_BINARY"):
+        flags |= os.O_BINARY
+
+    # Before we open our file, we want to delete any existing file that is
+    # there
+    try:
+        os.remove(filename)
+    except (IOError, OSError):
+        # The file must not exist already, so we can just skip ahead to opening
+        pass
+
+    # Open our file, the use of os.O_CREAT | os.O_EXCL will ensure that if a
+    # race condition happens between the os.remove and this line, that an
+    # error will be raised. Because we utilize a lockfile this should only
+    # happen if someone is attempting to attack us.
+    fd = os.open(filename, flags, fmode)
+    try:
+        return os.fdopen(fd, "wb")
+
+    except:
+        # An error occurred wrapping our FD in a file object
+        os.close(fd)
+        raise
+
+
+class FileCache(BaseCache):
+
+    def __init__(
+        self,
+        directory,
+        forever=False,
+        filemode=0o0600,
+        dirmode=0o0700,
+        use_dir_lock=None,
+        lock_class=None,
+    ):
+
+        if use_dir_lock is not None and lock_class is not None:
+            raise ValueError("Cannot use use_dir_lock and lock_class together")
+
+        try:
+            from lockfile import LockFile
+            from lockfile.mkdirlockfile import MkdirLockFile
+        except ImportError:
+            notice = dedent(
+                """
+            NOTE: In order to use the FileCache you must have
+            lockfile installed. You can install it via pip:
+              pip install lockfile
+            """
+            )
+            raise ImportError(notice)
+
+        else:
+            if use_dir_lock:
+                lock_class = MkdirLockFile
+
+            elif lock_class is None:
+                lock_class = LockFile
+
+        self.directory = directory
+        self.forever = forever
+        self.filemode = filemode
+        self.dirmode = dirmode
+        self.lock_class = lock_class
+
+    @staticmethod
+    def encode(x):
+        return hashlib.sha224(x.encode()).hexdigest()
+
+    def _fn(self, name):
+        # NOTE: This method should not change as some may depend on it.
+        #       See: https://github.com/ionrock/cachecontrol/issues/63
+        hashed = self.encode(name)
+        parts = list(hashed[:5]) + [hashed]
+        return os.path.join(self.directory, *parts)
+
+    def get(self, key):
+        name = self._fn(key)
+        try:
+            with open(name, "rb") as fh:
+                return fh.read()
+
+        except FileNotFoundError:
+            return None
+
+    def set(self, key, value):
+        name = self._fn(key)
+
+        # Make sure the directory exists
+        try:
+            os.makedirs(os.path.dirname(name), self.dirmode)
+        except (IOError, OSError):
+            pass
+
+        with self.lock_class(name) as lock:
+            # Write our actual file
+            with _secure_open_write(lock.path, self.filemode) as fh:
+                fh.write(value)
+
+    def delete(self, key):
+        name = self._fn(key)
+        if not self.forever:
+            try:
+                os.remove(name)
+            except FileNotFoundError:
+                pass
+
+
+def url_to_file_path(url, filecache):
+    """Return the file cache path based on the URL.
+
+    This does not ensure the file exists!
+    """
+    key = CacheController.cache_url(url)
+    return filecache._fn(key)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/caches/redis_cache.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/caches/redis_cache.py
new file mode 100644
index 0000000..ed705ce
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/caches/redis_cache.py
@@ -0,0 +1,33 @@
+from __future__ import division
+
+from datetime import datetime
+from pip._vendor.cachecontrol.cache import BaseCache
+
+
+class RedisCache(BaseCache):
+
+    def __init__(self, conn):
+        self.conn = conn
+
+    def get(self, key):
+        return self.conn.get(key)
+
+    def set(self, key, value, expires=None):
+        if not expires:
+            self.conn.set(key, value)
+        else:
+            expires = expires - datetime.utcnow()
+            self.conn.setex(key, int(expires.total_seconds()), value)
+
+    def delete(self, key):
+        self.conn.delete(key)
+
+    def clear(self):
+        """Helper for clearing all the keys in a database. Use with
+        caution!"""
+        for key in self.conn.keys():
+            self.conn.delete(key)
+
+    def close(self):
+        """Redis uses connection pooling, no need to close the connection."""
+        pass
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/compat.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/compat.py
new file mode 100644
index 0000000..33b5aed
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/compat.py
@@ -0,0 +1,29 @@
+try:
+    from urllib.parse import urljoin
+except ImportError:
+    from urlparse import urljoin
+
+
+try:
+    import cPickle as pickle
+except ImportError:
+    import pickle
+
+
+# Handle the case where the requests module has been patched to not have
+# urllib3 bundled as part of its source.
+try:
+    from pip._vendor.requests.packages.urllib3.response import HTTPResponse
+except ImportError:
+    from pip._vendor.urllib3.response import HTTPResponse
+
+try:
+    from pip._vendor.requests.packages.urllib3.util import is_fp_closed
+except ImportError:
+    from pip._vendor.urllib3.util import is_fp_closed
+
+# Replicate some six behaviour
+try:
+    text_type = unicode
+except NameError:
+    text_type = str
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/controller.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/controller.py
new file mode 100644
index 0000000..dafe55c
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/controller.py
@@ -0,0 +1,376 @@
+"""
+The httplib2 algorithms ported for use with requests.
+"""
+import logging
+import re
+import calendar
+import time
+from email.utils import parsedate_tz
+
+from pip._vendor.requests.structures import CaseInsensitiveDict
+
+from .cache import DictCache
+from .serialize import Serializer
+
+
+logger = logging.getLogger(__name__)
+
+URI = re.compile(r"^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?")
+
+
+def parse_uri(uri):
+    """Parses a URI using the regex given in Appendix B of RFC 3986.
+
+        (scheme, authority, path, query, fragment) = parse_uri(uri)
+    """
+    groups = URI.match(uri).groups()
+    return (groups[1], groups[3], groups[4], groups[6], groups[8])
+
+
+class CacheController(object):
+    """An interface to see if request should cached or not.
+    """
+
+    def __init__(
+        self, cache=None, cache_etags=True, serializer=None, status_codes=None
+    ):
+        self.cache = DictCache() if cache is None else cache
+        self.cache_etags = cache_etags
+        self.serializer = serializer or Serializer()
+        self.cacheable_status_codes = status_codes or (200, 203, 300, 301)
+
+    @classmethod
+    def _urlnorm(cls, uri):
+        """Normalize the URL to create a safe key for the cache"""
+        (scheme, authority, path, query, fragment) = parse_uri(uri)
+        if not scheme or not authority:
+            raise Exception("Only absolute URIs are allowed. uri = %s" % uri)
+
+        scheme = scheme.lower()
+        authority = authority.lower()
+
+        if not path:
+            path = "/"
+
+        # Could do syntax based normalization of the URI before
+        # computing the digest. See Section 6.2.2 of Std 66.
+        request_uri = query and "?".join([path, query]) or path
+        defrag_uri = scheme + "://" + authority + request_uri
+
+        return defrag_uri
+
+    @classmethod
+    def cache_url(cls, uri):
+        return cls._urlnorm(uri)
+
+    def parse_cache_control(self, headers):
+        known_directives = {
+            # https://tools.ietf.org/html/rfc7234#section-5.2
+            "max-age": (int, True),
+            "max-stale": (int, False),
+            "min-fresh": (int, True),
+            "no-cache": (None, False),
+            "no-store": (None, False),
+            "no-transform": (None, False),
+            "only-if-cached": (None, False),
+            "must-revalidate": (None, False),
+            "public": (None, False),
+            "private": (None, False),
+            "proxy-revalidate": (None, False),
+            "s-maxage": (int, True),
+        }
+
+        cc_headers = headers.get("cache-control", headers.get("Cache-Control", ""))
+
+        retval = {}
+
+        for cc_directive in cc_headers.split(","):
+            if not cc_directive.strip():
+                continue
+
+            parts = cc_directive.split("=", 1)
+            directive = parts[0].strip()
+
+            try:
+                typ, required = known_directives[directive]
+            except KeyError:
+                logger.debug("Ignoring unknown cache-control directive: %s", directive)
+                continue
+
+            if not typ or not required:
+                retval[directive] = None
+            if typ:
+                try:
+                    retval[directive] = typ(parts[1].strip())
+                except IndexError:
+                    if required:
+                        logger.debug(
+                            "Missing value for cache-control " "directive: %s",
+                            directive,
+                        )
+                except ValueError:
+                    logger.debug(
+                        "Invalid value for cache-control directive " "%s, must be %s",
+                        directive,
+                        typ.__name__,
+                    )
+
+        return retval
+
+    def cached_request(self, request):
+        """
+        Return a cached response if it exists in the cache, otherwise
+        return False.
+        """
+        cache_url = self.cache_url(request.url)
+        logger.debug('Looking up "%s" in the cache', cache_url)
+        cc = self.parse_cache_control(request.headers)
+
+        # Bail out if the request insists on fresh data
+        if "no-cache" in cc:
+            logger.debug('Request header has "no-cache", cache bypassed')
+            return False
+
+        if "max-age" in cc and cc["max-age"] == 0:
+            logger.debug('Request header has "max_age" as 0, cache bypassed')
+            return False
+
+        # Request allows serving from the cache, let's see if we find something
+        cache_data = self.cache.get(cache_url)
+        if cache_data is None:
+            logger.debug("No cache entry available")
+            return False
+
+        # Check whether it can be deserialized
+        resp = self.serializer.loads(request, cache_data)
+        if not resp:
+            logger.warning("Cache entry deserialization failed, entry ignored")
+            return False
+
+        # If we have a cached 301, return it immediately. We don't
+        # need to test our response for other headers b/c it is
+        # intrinsically "cacheable" as it is Permanent.
+        # See:
+        #   https://tools.ietf.org/html/rfc7231#section-6.4.2
+        #
+        # Client can try to refresh the value by repeating the request
+        # with cache busting headers as usual (ie no-cache).
+        if resp.status == 301:
+            msg = (
+                'Returning cached "301 Moved Permanently" response '
+                "(ignoring date and etag information)"
+            )
+            logger.debug(msg)
+            return resp
+
+        headers = CaseInsensitiveDict(resp.headers)
+        if not headers or "date" not in headers:
+            if "etag" not in headers:
+                # Without date or etag, the cached response can never be used
+                # and should be deleted.
+                logger.debug("Purging cached response: no date or etag")
+                self.cache.delete(cache_url)
+            logger.debug("Ignoring cached response: no date")
+            return False
+
+        now = time.time()
+        date = calendar.timegm(parsedate_tz(headers["date"]))
+        current_age = max(0, now - date)
+        logger.debug("Current age based on date: %i", current_age)
+
+        # TODO: There is an assumption that the result will be a
+        #       urllib3 response object. This may not be best since we
+        #       could probably avoid instantiating or constructing the
+        #       response until we know we need it.
+        resp_cc = self.parse_cache_control(headers)
+
+        # determine freshness
+        freshness_lifetime = 0
+
+        # Check the max-age pragma in the cache control header
+        if "max-age" in resp_cc:
+            freshness_lifetime = resp_cc["max-age"]
+            logger.debug("Freshness lifetime from max-age: %i", freshness_lifetime)
+
+        # If there isn't a max-age, check for an expires header
+        elif "expires" in headers:
+            expires = parsedate_tz(headers["expires"])
+            if expires is not None:
+                expire_time = calendar.timegm(expires) - date
+                freshness_lifetime = max(0, expire_time)
+                logger.debug("Freshness lifetime from expires: %i", freshness_lifetime)
+
+        # Determine if we are setting freshness limit in the
+        # request. Note, this overrides what was in the response.
+        if "max-age" in cc:
+            freshness_lifetime = cc["max-age"]
+            logger.debug(
+                "Freshness lifetime from request max-age: %i", freshness_lifetime
+            )
+
+        if "min-fresh" in cc:
+            min_fresh = cc["min-fresh"]
+            # adjust our current age by our min fresh
+            current_age += min_fresh
+            logger.debug("Adjusted current age from min-fresh: %i", current_age)
+
+        # Return entry if it is fresh enough
+        if freshness_lifetime > current_age:
+            logger.debug('The response is "fresh", returning cached response')
+            logger.debug("%i > %i", freshness_lifetime, current_age)
+            return resp
+
+        # we're not fresh. If we don't have an Etag, clear it out
+        if "etag" not in headers:
+            logger.debug('The cached response is "stale" with no etag, purging')
+            self.cache.delete(cache_url)
+
+        # return the original handler
+        return False
+
+    def conditional_headers(self, request):
+        cache_url = self.cache_url(request.url)
+        resp = self.serializer.loads(request, self.cache.get(cache_url))
+        new_headers = {}
+
+        if resp:
+            headers = CaseInsensitiveDict(resp.headers)
+
+            if "etag" in headers:
+                new_headers["If-None-Match"] = headers["ETag"]
+
+            if "last-modified" in headers:
+                new_headers["If-Modified-Since"] = headers["Last-Modified"]
+
+        return new_headers
+
+    def cache_response(self, request, response, body=None, status_codes=None):
+        """
+        Algorithm for caching requests.
+
+        This assumes a requests Response object.
+        """
+        # From httplib2: Don't cache 206's since we aren't going to
+        #                handle byte range requests
+        cacheable_status_codes = status_codes or self.cacheable_status_codes
+        if response.status not in cacheable_status_codes:
+            logger.debug(
+                "Status code %s not in %s", response.status, cacheable_status_codes
+            )
+            return
+
+        response_headers = CaseInsensitiveDict(response.headers)
+
+        # If we've been given a body, our response has a Content-Length, that
+        # Content-Length is valid then we can check to see if the body we've
+        # been given matches the expected size, and if it doesn't we'll just
+        # skip trying to cache it.
+        if (
+            body is not None
+            and "content-length" in response_headers
+            and response_headers["content-length"].isdigit()
+            and int(response_headers["content-length"]) != len(body)
+        ):
+            return
+
+        cc_req = self.parse_cache_control(request.headers)
+        cc = self.parse_cache_control(response_headers)
+
+        cache_url = self.cache_url(request.url)
+        logger.debug('Updating cache with response from "%s"', cache_url)
+
+        # Delete it from the cache if we happen to have it stored there
+        no_store = False
+        if "no-store" in cc:
+            no_store = True
+            logger.debug('Response header has "no-store"')
+        if "no-store" in cc_req:
+            no_store = True
+            logger.debug('Request header has "no-store"')
+        if no_store and self.cache.get(cache_url):
+            logger.debug('Purging existing cache entry to honor "no-store"')
+            self.cache.delete(cache_url)
+        if no_store:
+            return
+
+        # https://tools.ietf.org/html/rfc7234#section-4.1:
+        # A Vary header field-value of "*" always fails to match.
+        # Storing such a response leads to a deserialization warning
+        # during cache lookup and is not allowed to ever be served,
+        # so storing it can be avoided.
+        if "*" in response_headers.get("vary", ""):
+            logger.debug('Response header has "Vary: *"')
+            return
+
+        # If we've been given an etag, then keep the response
+        if self.cache_etags and "etag" in response_headers:
+            logger.debug("Caching due to etag")
+            self.cache.set(
+                cache_url, self.serializer.dumps(request, response, body=body)
+            )
+
+        # Add to the cache any 301s. We do this before looking that
+        # the Date headers.
+        elif response.status == 301:
+            logger.debug("Caching permanant redirect")
+            self.cache.set(cache_url, self.serializer.dumps(request, response))
+
+        # Add to the cache if the response headers demand it. If there
+        # is no date header then we can't do anything about expiring
+        # the cache.
+        elif "date" in response_headers:
+            # cache when there is a max-age > 0
+            if "max-age" in cc and cc["max-age"] > 0:
+                logger.debug("Caching b/c date exists and max-age > 0")
+                self.cache.set(
+                    cache_url, self.serializer.dumps(request, response, body=body)
+                )
+
+            # If the request can expire, it means we should cache it
+            # in the meantime.
+            elif "expires" in response_headers:
+                if response_headers["expires"]:
+                    logger.debug("Caching b/c of expires header")
+                    self.cache.set(
+                        cache_url, self.serializer.dumps(request, response, body=body)
+                    )
+
+    def update_cached_response(self, request, response):
+        """On a 304 we will get a new set of headers that we want to
+        update our cached value with, assuming we have one.
+
+        This should only ever be called when we've sent an ETag and
+        gotten a 304 as the response.
+        """
+        cache_url = self.cache_url(request.url)
+
+        cached_response = self.serializer.loads(request, self.cache.get(cache_url))
+
+        if not cached_response:
+            # we didn't have a cached response
+            return response
+
+        # Lets update our headers with the headers from the new request:
+        # http://tools.ietf.org/html/draft-ietf-httpbis-p4-conditional-26#section-4.1
+        #
+        # The server isn't supposed to send headers that would make
+        # the cached body invalid. But... just in case, we'll be sure
+        # to strip out ones we know that might be problmatic due to
+        # typical assumptions.
+        excluded_headers = ["content-length"]
+
+        cached_response.headers.update(
+            dict(
+                (k, v)
+                for k, v in response.headers.items()
+                if k.lower() not in excluded_headers
+            )
+        )
+
+        # we want a 200 b/c we have content via the cache
+        cached_response.status = 200
+
+        # update our cache
+        self.cache.set(cache_url, self.serializer.dumps(request, cached_response))
+
+        return cached_response
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/filewrapper.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/filewrapper.py
new file mode 100644
index 0000000..30ed4c5
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/filewrapper.py
@@ -0,0 +1,80 @@
+from io import BytesIO
+
+
+class CallbackFileWrapper(object):
+    """
+    Small wrapper around a fp object which will tee everything read into a
+    buffer, and when that file is closed it will execute a callback with the
+    contents of that buffer.
+
+    All attributes are proxied to the underlying file object.
+
+    This class uses members with a double underscore (__) leading prefix so as
+    not to accidentally shadow an attribute.
+    """
+
+    def __init__(self, fp, callback):
+        self.__buf = BytesIO()
+        self.__fp = fp
+        self.__callback = callback
+
+    def __getattr__(self, name):
+        # The vaguaries of garbage collection means that self.__fp is
+        # not always set.  By using __getattribute__ and the private
+        # name[0] allows looking up the attribute value and raising an
+        # AttributeError when it doesn't exist. This stop thigns from
+        # infinitely recursing calls to getattr in the case where
+        # self.__fp hasn't been set.
+        #
+        # [0] https://docs.python.org/2/reference/expressions.html#atom-identifiers
+        fp = self.__getattribute__("_CallbackFileWrapper__fp")
+        return getattr(fp, name)
+
+    def __is_fp_closed(self):
+        try:
+            return self.__fp.fp is None
+
+        except AttributeError:
+            pass
+
+        try:
+            return self.__fp.closed
+
+        except AttributeError:
+            pass
+
+        # We just don't cache it then.
+        # TODO: Add some logging here...
+        return False
+
+    def _close(self):
+        if self.__callback:
+            self.__callback(self.__buf.getvalue())
+
+        # We assign this to None here, because otherwise we can get into
+        # really tricky problems where the CPython interpreter dead locks
+        # because the callback is holding a reference to something which
+        # has a __del__ method. Setting this to None breaks the cycle
+        # and allows the garbage collector to do it's thing normally.
+        self.__callback = None
+
+    def read(self, amt=None):
+        data = self.__fp.read(amt)
+        self.__buf.write(data)
+        if self.__is_fp_closed():
+            self._close()
+
+        return data
+
+    def _safe_read(self, amt):
+        data = self.__fp._safe_read(amt)
+        if amt == 2 and data == b"\r\n":
+            # urllib executes this read to toss the CRLF at the end
+            # of the chunk.
+            return data
+
+        self.__buf.write(data)
+        if self.__is_fp_closed():
+            self._close()
+
+        return data
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/heuristics.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/heuristics.py
new file mode 100644
index 0000000..6c0e979
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/heuristics.py
@@ -0,0 +1,135 @@
+import calendar
+import time
+
+from email.utils import formatdate, parsedate, parsedate_tz
+
+from datetime import datetime, timedelta
+
+TIME_FMT = "%a, %d %b %Y %H:%M:%S GMT"
+
+
+def expire_after(delta, date=None):
+    date = date or datetime.utcnow()
+    return date + delta
+
+
+def datetime_to_header(dt):
+    return formatdate(calendar.timegm(dt.timetuple()))
+
+
+class BaseHeuristic(object):
+
+    def warning(self, response):
+        """
+        Return a valid 1xx warning header value describing the cache
+        adjustments.
+
+        The response is provided too allow warnings like 113
+        http://tools.ietf.org/html/rfc7234#section-5.5.4 where we need
+        to explicitly say response is over 24 hours old.
+        """
+        return '110 - "Response is Stale"'
+
+    def update_headers(self, response):
+        """Update the response headers with any new headers.
+
+        NOTE: This SHOULD always include some Warning header to
+              signify that the response was cached by the client, not
+              by way of the provided headers.
+        """
+        return {}
+
+    def apply(self, response):
+        updated_headers = self.update_headers(response)
+
+        if updated_headers:
+            response.headers.update(updated_headers)
+            warning_header_value = self.warning(response)
+            if warning_header_value is not None:
+                response.headers.update({"Warning": warning_header_value})
+
+        return response
+
+
+class OneDayCache(BaseHeuristic):
+    """
+    Cache the response by providing an expires 1 day in the
+    future.
+    """
+
+    def update_headers(self, response):
+        headers = {}
+
+        if "expires" not in response.headers:
+            date = parsedate(response.headers["date"])
+            expires = expire_after(timedelta(days=1), date=datetime(*date[:6]))
+            headers["expires"] = datetime_to_header(expires)
+            headers["cache-control"] = "public"
+        return headers
+
+
+class ExpiresAfter(BaseHeuristic):
+    """
+    Cache **all** requests for a defined time period.
+    """
+
+    def __init__(self, **kw):
+        self.delta = timedelta(**kw)
+
+    def update_headers(self, response):
+        expires = expire_after(self.delta)
+        return {"expires": datetime_to_header(expires), "cache-control": "public"}
+
+    def warning(self, response):
+        tmpl = "110 - Automatically cached for %s. Response might be stale"
+        return tmpl % self.delta
+
+
+class LastModified(BaseHeuristic):
+    """
+    If there is no Expires header already, fall back on Last-Modified
+    using the heuristic from
+    http://tools.ietf.org/html/rfc7234#section-4.2.2
+    to calculate a reasonable value.
+
+    Firefox also does something like this per
+    https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching_FAQ
+    http://lxr.mozilla.org/mozilla-release/source/netwerk/protocol/http/nsHttpResponseHead.cpp#397
+    Unlike mozilla we limit this to 24-hr.
+    """
+    cacheable_by_default_statuses = {
+        200, 203, 204, 206, 300, 301, 404, 405, 410, 414, 501
+    }
+
+    def update_headers(self, resp):
+        headers = resp.headers
+
+        if "expires" in headers:
+            return {}
+
+        if "cache-control" in headers and headers["cache-control"] != "public":
+            return {}
+
+        if resp.status not in self.cacheable_by_default_statuses:
+            return {}
+
+        if "date" not in headers or "last-modified" not in headers:
+            return {}
+
+        date = calendar.timegm(parsedate_tz(headers["date"]))
+        last_modified = parsedate(headers["last-modified"])
+        if date is None or last_modified is None:
+            return {}
+
+        now = time.time()
+        current_age = max(0, now - date)
+        delta = date - calendar.timegm(last_modified)
+        freshness_lifetime = max(0, min(delta / 10, 24 * 3600))
+        if freshness_lifetime <= current_age:
+            return {}
+
+        expires = date + freshness_lifetime
+        return {"expires": time.strftime(TIME_FMT, time.gmtime(expires))}
+
+    def warning(self, resp):
+        return None
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/serialize.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/serialize.py
new file mode 100644
index 0000000..3b6ec2d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/serialize.py
@@ -0,0 +1,188 @@
+import base64
+import io
+import json
+import zlib
+
+from pip._vendor import msgpack
+from pip._vendor.requests.structures import CaseInsensitiveDict
+
+from .compat import HTTPResponse, pickle, text_type
+
+
+def _b64_decode_bytes(b):
+    return base64.b64decode(b.encode("ascii"))
+
+
+def _b64_decode_str(s):
+    return _b64_decode_bytes(s).decode("utf8")
+
+
+class Serializer(object):
+
+    def dumps(self, request, response, body=None):
+        response_headers = CaseInsensitiveDict(response.headers)
+
+        if body is None:
+            body = response.read(decode_content=False)
+
+            # NOTE: 99% sure this is dead code. I'm only leaving it
+            #       here b/c I don't have a test yet to prove
+            #       it. Basically, before using
+            #       `cachecontrol.filewrapper.CallbackFileWrapper`,
+            #       this made an effort to reset the file handle. The
+            #       `CallbackFileWrapper` short circuits this code by
+            #       setting the body as the content is consumed, the
+            #       result being a `body` argument is *always* passed
+            #       into cache_response, and in turn,
+            #       `Serializer.dump`.
+            response._fp = io.BytesIO(body)
+
+        # NOTE: This is all a bit weird, but it's really important that on
+        #       Python 2.x these objects are unicode and not str, even when
+        #       they contain only ascii. The problem here is that msgpack
+        #       understands the difference between unicode and bytes and we
+        #       have it set to differentiate between them, however Python 2
+        #       doesn't know the difference. Forcing these to unicode will be
+        #       enough to have msgpack know the difference.
+        data = {
+            u"response": {
+                u"body": body,
+                u"headers": dict(
+                    (text_type(k), text_type(v)) for k, v in response.headers.items()
+                ),
+                u"status": response.status,
+                u"version": response.version,
+                u"reason": text_type(response.reason),
+                u"strict": response.strict,
+                u"decode_content": response.decode_content,
+            }
+        }
+
+        # Construct our vary headers
+        data[u"vary"] = {}
+        if u"vary" in response_headers:
+            varied_headers = response_headers[u"vary"].split(",")
+            for header in varied_headers:
+                header = text_type(header).strip()
+                header_value = request.headers.get(header, None)
+                if header_value is not None:
+                    header_value = text_type(header_value)
+                data[u"vary"][header] = header_value
+
+        return b",".join([b"cc=4", msgpack.dumps(data, use_bin_type=True)])
+
+    def loads(self, request, data):
+        # Short circuit if we've been given an empty set of data
+        if not data:
+            return
+
+        # Determine what version of the serializer the data was serialized
+        # with
+        try:
+            ver, data = data.split(b",", 1)
+        except ValueError:
+            ver = b"cc=0"
+
+        # Make sure that our "ver" is actually a version and isn't a false
+        # positive from a , being in the data stream.
+        if ver[:3] != b"cc=":
+            data = ver + data
+            ver = b"cc=0"
+
+        # Get the version number out of the cc=N
+        ver = ver.split(b"=", 1)[-1].decode("ascii")
+
+        # Dispatch to the actual load method for the given version
+        try:
+            return getattr(self, "_loads_v{}".format(ver))(request, data)
+
+        except AttributeError:
+            # This is a version we don't have a loads function for, so we'll
+            # just treat it as a miss and return None
+            return
+
+    def prepare_response(self, request, cached):
+        """Verify our vary headers match and construct a real urllib3
+        HTTPResponse object.
+        """
+        # Special case the '*' Vary value as it means we cannot actually
+        # determine if the cached response is suitable for this request.
+        # This case is also handled in the controller code when creating
+        # a cache entry, but is left here for backwards compatibility.
+        if "*" in cached.get("vary", {}):
+            return
+
+        # Ensure that the Vary headers for the cached response match our
+        # request
+        for header, value in cached.get("vary", {}).items():
+            if request.headers.get(header, None) != value:
+                return
+
+        body_raw = cached["response"].pop("body")
+
+        headers = CaseInsensitiveDict(data=cached["response"]["headers"])
+        if headers.get("transfer-encoding", "") == "chunked":
+            headers.pop("transfer-encoding")
+
+        cached["response"]["headers"] = headers
+
+        try:
+            body = io.BytesIO(body_raw)
+        except TypeError:
+            # This can happen if cachecontrol serialized to v1 format (pickle)
+            # using Python 2. A Python 2 str(byte string) will be unpickled as
+            # a Python 3 str (unicode string), which will cause the above to
+            # fail with:
+            #
+            #     TypeError: 'str' does not support the buffer interface
+            body = io.BytesIO(body_raw.encode("utf8"))
+
+        return HTTPResponse(body=body, preload_content=False, **cached["response"])
+
+    def _loads_v0(self, request, data):
+        # The original legacy cache data. This doesn't contain enough
+        # information to construct everything we need, so we'll treat this as
+        # a miss.
+        return
+
+    def _loads_v1(self, request, data):
+        try:
+            cached = pickle.loads(data)
+        except ValueError:
+            return
+
+        return self.prepare_response(request, cached)
+
+    def _loads_v2(self, request, data):
+        try:
+            cached = json.loads(zlib.decompress(data).decode("utf8"))
+        except (ValueError, zlib.error):
+            return
+
+        # We need to decode the items that we've base64 encoded
+        cached["response"]["body"] = _b64_decode_bytes(cached["response"]["body"])
+        cached["response"]["headers"] = dict(
+            (_b64_decode_str(k), _b64_decode_str(v))
+            for k, v in cached["response"]["headers"].items()
+        )
+        cached["response"]["reason"] = _b64_decode_str(cached["response"]["reason"])
+        cached["vary"] = dict(
+            (_b64_decode_str(k), _b64_decode_str(v) if v is not None else v)
+            for k, v in cached["vary"].items()
+        )
+
+        return self.prepare_response(request, cached)
+
+    def _loads_v3(self, request, data):
+        # Due to Python 2 encoding issues, it's impossible to know for sure
+        # exactly how to load v3 entries, thus we'll treat these as a miss so
+        # that they get rewritten out as v4 entries.
+        return
+
+    def _loads_v4(self, request, data):
+        try:
+            cached = msgpack.loads(data, raw=False)
+        except ValueError:
+            return
+
+        return self.prepare_response(request, cached)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/wrapper.py b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/wrapper.py
new file mode 100644
index 0000000..d8e6fc6
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/cachecontrol/wrapper.py
@@ -0,0 +1,29 @@
+from .adapter import CacheControlAdapter
+from .cache import DictCache
+
+
+def CacheControl(
+    sess,
+    cache=None,
+    cache_etags=True,
+    serializer=None,
+    heuristic=None,
+    controller_class=None,
+    adapter_class=None,
+    cacheable_methods=None,
+):
+
+    cache = DictCache() if cache is None else cache
+    adapter_class = adapter_class or CacheControlAdapter
+    adapter = adapter_class(
+        cache,
+        cache_etags=cache_etags,
+        serializer=serializer,
+        heuristic=heuristic,
+        controller_class=controller_class,
+        cacheable_methods=cacheable_methods,
+    )
+    sess.mount("http://", adapter)
+    sess.mount("https://", adapter)
+
+    return sess
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/__init__.py
new file mode 100644
index 0000000..eebdf88
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/__init__.py
@@ -0,0 +1,3 @@
+from .core import contents, where
+
+__version__ = "2021.05.30"
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/__main__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/__main__.py
new file mode 100644
index 0000000..0037634
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/__main__.py
@@ -0,0 +1,12 @@
+import argparse
+
+from pip._vendor.certifi import contents, where
+
+parser = argparse.ArgumentParser()
+parser.add_argument("-c", "--contents", action="store_true")
+args = parser.parse_args()
+
+if args.contents:
+    print(contents())
+else:
+    print(where())
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/cacert.pem b/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/cacert.pem
new file mode 100644
index 0000000..96e2fc6
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/cacert.pem
@@ -0,0 +1,4257 @@
+
+# Issuer: CN=GlobalSign Root CA O=GlobalSign nv-sa OU=Root CA
+# Subject: CN=GlobalSign Root CA O=GlobalSign nv-sa OU=Root CA
+# Label: "GlobalSign Root CA"
+# Serial: 4835703278459707669005204
+# MD5 Fingerprint: 3e:45:52:15:09:51:92:e1:b7:5d:37:9f:b1:87:29:8a
+# SHA1 Fingerprint: b1:bc:96:8b:d4:f4:9d:62:2a:a8:9a:81:f2:15:01:52:a4:1d:82:9c
+# SHA256 Fingerprint: eb:d4:10:40:e4:bb:3e:c7:42:c9:e3:81:d3:1e:f2:a4:1a:48:b6:68:5c:96:e7:ce:f3:c1:df:6c:d4:33:1c:99
+-----BEGIN CERTIFICATE-----
+MIIDdTCCAl2gAwIBAgILBAAAAAABFUtaw5QwDQYJKoZIhvcNAQEFBQAwVzELMAkG
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+HMUfpIBvFSDJ3gyICh3WZlXi/EjJKSZp4A==
+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R2
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R2
+# Label: "GlobalSign Root CA - R2"
+# Serial: 4835703278459682885658125
+# MD5 Fingerprint: 94:14:77:7e:3e:5e:fd:8f:30:bd:41:b0:cf:e7:d0:30
+# SHA1 Fingerprint: 75:e0:ab:b6:13:85:12:27:1c:04:f8:5f:dd:de:38:e4:b7:24:2e:fe
+# SHA256 Fingerprint: ca:42:dd:41:74:5f:d0:b8:1e:b9:02:36:2c:f9:d8:bf:71:9d:a1:bd:1b:1e:fc:94:6f:5b:4c:99:f4:2c:1b:9e
+-----BEGIN CERTIFICATE-----
+MIIDujCCAqKgAwIBAgILBAAAAAABD4Ym5g0wDQYJKoZIhvcNAQEFBQAwTDEgMB4G
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Entrust.net Certification Authority (2048) O=Entrust.net OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Subject: CN=Entrust.net Certification Authority (2048) O=Entrust.net OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Label: "Entrust.net Premium 2048 Secure Server CA"
+# Serial: 946069240
+# MD5 Fingerprint: ee:29:31:bc:32:7e:9a:e6:e8:b5:f7:51:b4:34:71:90
+# SHA1 Fingerprint: 50:30:06:09:1d:97:d4:f5:ae:39:f7:cb:e7:92:7d:7d:65:2d:34:31
+# SHA256 Fingerprint: 6d:c4:71:72:e0:1c:bc:b0:bf:62:58:0d:89:5f:e2:b8:ac:9a:d4:f8:73:80:1e:0c:10:b9:c8:37:d2:1e:b1:77
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Baltimore CyberTrust Root O=Baltimore OU=CyberTrust
+# Subject: CN=Baltimore CyberTrust Root O=Baltimore OU=CyberTrust
+# Label: "Baltimore CyberTrust Root"
+# Serial: 33554617
+# MD5 Fingerprint: ac:b6:94:a5:9c:17:e0:d7:91:52:9b:b1:97:06:a6:e4
+# SHA1 Fingerprint: d4:de:20:d0:5e:66:fc:53:fe:1a:50:88:2c:78:db:28:52:ca:e4:74
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Entrust Root Certification Authority O=Entrust, Inc. OU=www.entrust.net/CPS is incorporated by reference/(c) 2006 Entrust, Inc.
+# Subject: CN=Entrust Root Certification Authority O=Entrust, Inc. OU=www.entrust.net/CPS is incorporated by reference/(c) 2006 Entrust, Inc.
+# Label: "Entrust Root Certification Authority"
+# Serial: 1164660820
+# MD5 Fingerprint: d6:a5:c3:ed:5d:dd:3e:00:c1:3d:87:92:1f:1d:3f:e4
+# SHA1 Fingerprint: b3:1e:b1:b7:40:e3:6c:84:02:da:dc:37:d4:4d:f5:d4:67:49:52:f9
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=AAA Certificate Services O=Comodo CA Limited
+# Subject: CN=AAA Certificate Services O=Comodo CA Limited
+# Label: "Comodo AAA Services root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=QuoVadis Root CA 2 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 2 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 2"
+# Serial: 1289
+# MD5 Fingerprint: 5e:39:7b:dd:f8:ba:ec:82:e9:ac:62:ba:0c:54:00:2b
+# SHA1 Fingerprint: ca:3a:fb:cf:12:40:36:4b:44:b2:16:20:88:80:48:39:19:93:7c:f7
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=QuoVadis Root CA 3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 3"
+# Serial: 1478
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=SECOM Trust.net OU=Security Communication RootCA1
+# Subject: O=SECOM Trust.net OU=Security Communication RootCA1
+# Label: "Security Communication Root CA"
+# Serial: 0
+# MD5 Fingerprint: f1:bc:63:6a:54:e0:b5:27:f5:cd:e7:1a:e3:4d:6e:4a
+# SHA1 Fingerprint: 36:b1:2b:49:f9:81:9e:d7:4c:9e:bc:38:0f:c6:56:8f:5d:ac:b2:f7
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=XRamp Global Certification Authority O=XRamp Security Services Inc OU=www.xrampsecurity.com
+# Subject: CN=XRamp Global Certification Authority O=XRamp Security Services Inc OU=www.xrampsecurity.com
+# Label: "XRamp Global CA Root"
+# Serial: 107108908803651509692980124233745014957
+# MD5 Fingerprint: a1:0b:44:b3:ca:10:d8:00:6e:9d:0f:d8:0f:92:0a:d1
+# SHA1 Fingerprint: b8:01:86:d1:eb:9c:86:a5:41:04:cf:30:54:f3:4c:52:b7:e5:58:c6
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=The Go Daddy Group, Inc. OU=Go Daddy Class 2 Certification Authority
+# Subject: O=The Go Daddy Group, Inc. OU=Go Daddy Class 2 Certification Authority
+# Label: "Go Daddy Class 2 CA"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=Starfield Technologies, Inc. OU=Starfield Class 2 Certification Authority
+# Subject: O=Starfield Technologies, Inc. OU=Starfield Class 2 Certification Authority
+# Label: "Starfield Class 2 CA"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Assured ID Root CA O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Assured ID Root CA O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Assured ID Root CA"
+# Serial: 17154717934120587862167794914071425081
+# MD5 Fingerprint: 87:ce:0b:7b:2a:0e:49:00:e1:58:71:9b:37:a8:93:72
+# SHA1 Fingerprint: 05:63:b8:63:0d:62:d7:5a:bb:c8:ab:1e:4b:df:b5:a8:99:b2:4d:43
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Global Root CA O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Global Root CA O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Global Root CA"
+# Serial: 10944719598952040374951832963794454346
+# MD5 Fingerprint: 79:e4:a9:84:0d:7d:3a:96:d7:c0:4f:e2:43:4c:89:2e
+# SHA1 Fingerprint: a8:98:5d:3a:65:e5:e5:c4:b2:d7:d6:6d:40:c6:dd:2f:b1:9c:54:36
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert High Assurance EV Root CA O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert High Assurance EV Root CA O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert High Assurance EV Root CA"
+# Serial: 3553400076410547919724730734378100087
+# MD5 Fingerprint: d4:74:de:57:5c:39:b2:d3:9c:85:83:c5:c0:65:49:8a
+# SHA1 Fingerprint: 5f:b7:ee:06:33:e2:59:db:ad:0c:4c:9a:e6:d3:8f:1a:61:c7:dc:25
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DST Root CA X3 O=Digital Signature Trust Co.
+# Subject: CN=DST Root CA X3 O=Digital Signature Trust Co.
+# Label: "DST Root CA X3"
+# Serial: 91299735575339953335919266965803778155
+# MD5 Fingerprint: 41:03:52:dc:0f:f7:50:1b:16:f0:02:8e:ba:6f:45:c5
+# SHA1 Fingerprint: da:c9:02:4f:54:d8:f6:df:94:93:5f:b1:73:26:38:ca:6a:d7:7c:13
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=SwissSign Gold CA - G2 O=SwissSign AG
+# Subject: CN=SwissSign Gold CA - G2 O=SwissSign AG
+# Label: "SwissSign Gold CA - G2"
+# Serial: 13492815561806991280
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=SwissSign Silver CA - G2 O=SwissSign AG
+# Subject: CN=SwissSign Silver CA - G2 O=SwissSign AG
+# Label: "SwissSign Silver CA - G2"
+# Serial: 5700383053117599563
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=SecureTrust CA O=SecureTrust Corporation
+# Subject: CN=SecureTrust CA O=SecureTrust Corporation
+# Label: "SecureTrust CA"
+# Serial: 17199774589125277788362757014266862032
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Secure Global CA O=SecureTrust Corporation
+# Subject: CN=Secure Global CA O=SecureTrust Corporation
+# Label: "Secure Global CA"
+# Serial: 9751836167731051554232119481456978597
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=COMODO Certification Authority O=COMODO CA Limited
+# Subject: CN=COMODO Certification Authority O=COMODO CA Limited
+# Label: "COMODO Certification Authority"
+# Serial: 104350513648249232941998508985834464573
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Network Solutions Certificate Authority O=Network Solutions L.L.C.
+# Subject: CN=Network Solutions Certificate Authority O=Network Solutions L.L.C.
+# Label: "Network Solutions Certificate Authority"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=COMODO ECC Certification Authority O=COMODO CA Limited
+# Subject: CN=COMODO ECC Certification Authority O=COMODO CA Limited
+# Label: "COMODO ECC Certification Authority"
+# Serial: 41578283867086692638256921589707938090
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Certigna O=Dhimyotis
+# Subject: CN=Certigna O=Dhimyotis
+# Label: "Certigna"
+# Serial: 18364802974209362175
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Cybertrust Global Root O=Cybertrust, Inc
+# Subject: CN=Cybertrust Global Root O=Cybertrust, Inc
+# Label: "Cybertrust Global Root"
+# Serial: 4835703278459682877484360
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=Chunghwa Telecom Co., Ltd. OU=ePKI Root Certification Authority
+# Subject: O=Chunghwa Telecom Co., Ltd. OU=ePKI Root Certification Authority
+# Label: "ePKI Root Certification Authority"
+# Serial: 28956088682735189655030529057352760477
+# MD5 Fingerprint: 1b:2e:00:ca:26:06:90:3d:ad:fe:6f:15:68:d3:6b:b3
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: O=certSIGN OU=certSIGN ROOT CA
+# Subject: O=certSIGN OU=certSIGN ROOT CA
+# Label: "certSIGN ROOT CA"
+# Serial: 35210227249154
+# MD5 Fingerprint: 18:98:c0:d6:e9:3a:fc:f9:b0:f5:0c:f7:4b:01:44:17
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=NetLock Arany (Class Gold) F\u0151tan\xfas\xedtv\xe1ny O=NetLock Kft. OU=Tan\xfas\xedtv\xe1nykiad\xf3k (Certification Services)
+# Subject: CN=NetLock Arany (Class Gold) F\u0151tan\xfas\xedtv\xe1ny O=NetLock Kft. OU=Tan\xfas\xedtv\xe1nykiad\xf3k (Certification Services)
+# Label: "NetLock Arany (Class Gold) F\u0151tan\xfas\xedtv\xe1ny"
+# Serial: 80544274841616
+# MD5 Fingerprint: c5:a1:b7:ff:73:dd:d6:d7:34:32:18:df:fc:3c:ad:88
+# SHA1 Fingerprint: 06:08:3f:59:3f:15:a1:04:a0:69:a4:6b:a9:03:d0:06:b7:97:09:91
+# SHA256 Fingerprint: 6c:61:da:c3:a2:de:f0:31:50:6b:e0:36:d2:a6:fe:40:19:94:fb:d1:3d:f9:c8:d4:66:59:92:74:c4:46:ec:98
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Hongkong Post Root CA 1 O=Hongkong Post
+# Subject: CN=Hongkong Post Root CA 1 O=Hongkong Post
+# Label: "Hongkong Post Root CA 1"
+# Serial: 1000
+# MD5 Fingerprint: a8:0d:6f:39:78:b9:43:6d:77:42:6d:98:5a:cc:23:ca
+# SHA1 Fingerprint: d6:da:a8:20:8d:09:d2:15:4d:24:b5:2f:cb:34:6e:b2:58:b2:8a:58
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SecureSign RootCA11 O=Japan Certification Services, Inc.
+# Subject: CN=SecureSign RootCA11 O=Japan Certification Services, Inc.
+# Label: "SecureSign RootCA11"
+# Serial: 1
+# MD5 Fingerprint: b7:52:74:e2:92:b4:80:93:f2:75:e4:cc:d7:f2:ea:26
+# SHA1 Fingerprint: 3b:c4:9f:48:f8:f3:73:a0:9c:1e:bd:f8:5b:b1:c3:65:c7:d8:11:b3
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Microsec e-Szigno Root CA 2009 O=Microsec Ltd.
+# Subject: CN=Microsec e-Szigno Root CA 2009 O=Microsec Ltd.
+# Label: "Microsec e-Szigno Root CA 2009"
+# Serial: 14014712776195784473
+# MD5 Fingerprint: f8:49:f4:03:bc:44:2d:83:be:48:69:7d:29:64:fc:b1
+# SHA1 Fingerprint: 89:df:74:fe:5c:f4:0f:4a:80:f9:e3:37:7d:54:da:91:e1:01:31:8e
+# SHA256 Fingerprint: 3c:5f:81:fe:a5:fa:b8:2c:64:bf:a2:ea:ec:af:cd:e8:e0:77:fc:86:20:a7:ca:e5:37:16:3d:f3:6e:db:f3:78
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R3
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R3
+# Label: "GlobalSign Root CA - R3"
+# Serial: 4835703278459759426209954
+# MD5 Fingerprint: c5:df:b8:49:ca:05:13:55:ee:2d:ba:1a:c3:3e:b0:28
+# SHA1 Fingerprint: d6:9b:56:11:48:f0:1c:77:c5:45:78:c1:09:26:df:5b:85:69:76:ad
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Autoridad de Certificacion Firmaprofesional CIF A62634068
+# Subject: CN=Autoridad de Certificacion Firmaprofesional CIF A62634068
+# Label: "Autoridad de Certificacion Firmaprofesional CIF A62634068"
+# Serial: 6047274297262753887
+# MD5 Fingerprint: 73:3a:74:7a:ec:bb:a3:96:a6:c2:e4:e2:c8:9b:c0:c3
+# SHA1 Fingerprint: ae:c5:fb:3f:c8:e1:bf:c4:e5:4f:03:07:5a:9a:e8:00:b7:f7:b6:fa
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+-----BEGIN CERTIFICATE-----
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+# Label: "Go Daddy Root Certificate Authority - G2"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Starfield Root Certificate Authority - G2 O=Starfield Technologies, Inc.
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+# Label: "Starfield Root Certificate Authority - G2"
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+-----BEGIN CERTIFICATE-----
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+# Label: "Starfield Services Root Certificate Authority - G2"
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+-----BEGIN CERTIFICATE-----
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+# Label: "AffirmTrust Premium"
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+# Issuer: CN=AffirmTrust Premium ECC O=AffirmTrust
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+# Label: "AffirmTrust Premium ECC"
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+-----BEGIN CERTIFICATE-----
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+# Subject: CN=Certum Trusted Network CA O=Unizeto Technologies S.A. OU=Certum Certification Authority
+# Label: "Certum Trusted Network CA"
+# Serial: 279744
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=TWCA Root Certification Authority O=TAIWAN-CA OU=Root CA
+# Subject: CN=TWCA Root Certification Authority O=TAIWAN-CA OU=Root CA
+# Label: "TWCA Root Certification Authority"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=SECOM Trust Systems CO.,LTD. OU=Security Communication RootCA2
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+# Label: "Security Communication RootCA2"
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+-----BEGIN CERTIFICATE-----
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+# Label: "EC-ACC"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Buypass Class 2 Root CA O=Buypass AS-983163327
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+# Label: "Buypass Class 2 Root CA"
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+# Issuer: CN=Buypass Class 3 Root CA O=Buypass AS-983163327
+# Subject: CN=Buypass Class 3 Root CA O=Buypass AS-983163327
+# Label: "Buypass Class 3 Root CA"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=T-TeleSec GlobalRoot Class 3 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Subject: CN=T-TeleSec GlobalRoot Class 3 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Label: "T-TeleSec GlobalRoot Class 3"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=D-TRUST Root Class 3 CA 2 2009 O=D-Trust GmbH
+# Subject: CN=D-TRUST Root Class 3 CA 2 2009 O=D-Trust GmbH
+# Label: "D-TRUST Root Class 3 CA 2 2009"
+# Serial: 623603
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=D-TRUST Root Class 3 CA 2 EV 2009 O=D-Trust GmbH
+# Subject: CN=D-TRUST Root Class 3 CA 2 EV 2009 O=D-Trust GmbH
+# Label: "D-TRUST Root Class 3 CA 2 EV 2009"
+# Serial: 623604
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=CA Disig Root R2 O=Disig a.s.
+# Subject: CN=CA Disig Root R2 O=Disig a.s.
+# Label: "CA Disig Root R2"
+# Serial: 10572350602393338211
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+-----BEGIN CERTIFICATE-----
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+# Subject: CN=ACCVRAIZ1 O=ACCV OU=PKIACCV
+# Label: "ACCVRAIZ1"
+# Serial: 6828503384748696800
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=TWCA Global Root CA O=TAIWAN-CA OU=Root CA
+# Subject: CN=TWCA Global Root CA O=TAIWAN-CA OU=Root CA
+# Label: "TWCA Global Root CA"
+# Serial: 3262
+# MD5 Fingerprint: f9:03:7e:cf:e6:9e:3c:73:7a:2a:90:07:69:ff:2b:96
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TeliaSonera Root CA v1 O=TeliaSonera
+# Subject: CN=TeliaSonera Root CA v1 O=TeliaSonera
+# Label: "TeliaSonera Root CA v1"
+# Serial: 199041966741090107964904287217786801558
+# MD5 Fingerprint: 37:41:49:1b:18:56:9a:26:f5:ad:c2:66:fb:40:a5:4c
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=E-Tugra Certification Authority O=E-Tu\u011fra EBG Bili\u015fim Teknolojileri ve Hizmetleri A.\u015e. OU=E-Tugra Sertifikasyon Merkezi
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+# Label: "E-Tugra Certification Authority"
+# Serial: 7667447206703254355
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=T-TeleSec GlobalRoot Class 2 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Subject: CN=T-TeleSec GlobalRoot Class 2 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Label: "T-TeleSec GlobalRoot Class 2"
+# Serial: 1
+# MD5 Fingerprint: 2b:9b:9e:e4:7b:6c:1f:00:72:1a:cc:c1:77:79:df:6a
+# SHA1 Fingerprint: 59:0d:2d:7d:88:4f:40:2e:61:7e:a5:62:32:17:65:cf:17:d8:94:e9
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Atos TrustedRoot 2011 O=Atos
+# Subject: CN=Atos TrustedRoot 2011 O=Atos
+# Label: "Atos TrustedRoot 2011"
+# Serial: 6643877497813316402
+# MD5 Fingerprint: ae:b9:c4:32:4b:ac:7f:5d:66:cc:77:94:bb:2a:77:56
+# SHA1 Fingerprint: 2b:b1:f5:3e:55:0c:1d:c5:f1:d4:e6:b7:6a:46:4b:55:06:02:ac:21
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=QuoVadis Root CA 1 G3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 1 G3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 1 G3"
+# Serial: 687049649626669250736271037606554624078720034195
+# MD5 Fingerprint: a4:bc:5b:3f:fe:37:9a:fa:64:f0:e2:fa:05:3d:0b:ab
+# SHA1 Fingerprint: 1b:8e:ea:57:96:29:1a:c9:39:ea:b8:0a:81:1a:73:73:c0:93:79:67
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=QuoVadis Root CA 2 G3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 2 G3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 2 G3"
+# Serial: 390156079458959257446133169266079962026824725800
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=QuoVadis Root CA 3 G3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 3 G3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 3 G3"
+# Serial: 268090761170461462463995952157327242137089239581
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=DigiCert Assured ID Root G2 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Assured ID Root G2 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Assured ID Root G2"
+# Serial: 15385348160840213938643033620894905419
+# MD5 Fingerprint: 92:38:b9:f8:63:24:82:65:2c:57:33:e6:fe:81:8f:9d
+# SHA1 Fingerprint: a1:4b:48:d9:43:ee:0a:0e:40:90:4f:3c:e0:a4:c0:91:93:51:5d:3f
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Assured ID Root G3 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Assured ID Root G3 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Assured ID Root G3"
+# Serial: 15459312981008553731928384953135426796
+# MD5 Fingerprint: 7c:7f:65:31:0c:81:df:8d:ba:3e:99:e2:5c:ad:6e:fb
+# SHA1 Fingerprint: f5:17:a2:4f:9a:48:c6:c9:f8:a2:00:26:9f:dc:0f:48:2c:ab:30:89
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=DigiCert Global Root G2 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Global Root G2 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Global Root G2"
+# Serial: 4293743540046975378534879503202253541
+# MD5 Fingerprint: e4:a6:8a:c8:54:ac:52:42:46:0a:fd:72:48:1b:2a:44
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Global Root G3 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Global Root G3 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Global Root G3"
+# Serial: 7089244469030293291760083333884364146
+# MD5 Fingerprint: f5:5d:a4:50:a5:fb:28:7e:1e:0f:0d:cc:96:57:56:ca
+# SHA1 Fingerprint: 7e:04:de:89:6a:3e:66:6d:00:e6:87:d3:3f:fa:d9:3b:e8:3d:34:9e
+# SHA256 Fingerprint: 31:ad:66:48:f8:10:41:38:c7:38:f3:9e:a4:32:01:33:39:3e:3a:18:cc:02:29:6e:f9:7c:2a:c9:ef:67:31:d0
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Trusted Root G4 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Trusted Root G4 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Trusted Root G4"
+# Serial: 7451500558977370777930084869016614236
+# MD5 Fingerprint: 78:f2:fc:aa:60:1f:2f:b4:eb:c9:37:ba:53:2e:75:49
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=COMODO RSA Certification Authority O=COMODO CA Limited
+# Subject: CN=COMODO RSA Certification Authority O=COMODO CA Limited
+# Label: "COMODO RSA Certification Authority"
+# Serial: 101909084537582093308941363524873193117
+# MD5 Fingerprint: 1b:31:b0:71:40:36:cc:14:36:91:ad:c4:3e:fd:ec:18
+# SHA1 Fingerprint: af:e5:d2:44:a8:d1:19:42:30:ff:47:9f:e2:f8:97:bb:cd:7a:8c:b4
+# SHA256 Fingerprint: 52:f0:e1:c4:e5:8e:c6:29:29:1b:60:31:7f:07:46:71:b8:5d:7e:a8:0d:5b:07:27:34:63:53:4b:32:b4:02:34
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=USERTrust RSA Certification Authority O=The USERTRUST Network
+# Subject: CN=USERTrust RSA Certification Authority O=The USERTRUST Network
+# Label: "USERTrust RSA Certification Authority"
+# Serial: 2645093764781058787591871645665788717
+# MD5 Fingerprint: 1b:fe:69:d1:91:b7:19:33:a3:72:a8:0f:e1:55:e5:b5
+# SHA1 Fingerprint: 2b:8f:1b:57:33:0d:bb:a2:d0:7a:6c:51:f7:0e:e9:0d:da:b9:ad:8e
+# SHA256 Fingerprint: e7:93:c9:b0:2f:d8:aa:13:e2:1c:31:22:8a:cc:b0:81:19:64:3b:74:9c:89:89:64:b1:74:6d:46:c3:d4:cb:d2
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=USERTrust ECC Certification Authority O=The USERTRUST Network
+# Subject: CN=USERTrust ECC Certification Authority O=The USERTRUST Network
+# Label: "USERTrust ECC Certification Authority"
+# Serial: 123013823720199481456569720443997572134
+# MD5 Fingerprint: fa:68:bc:d9:b5:7f:ad:fd:c9:1d:06:83:28:cc:24:c1
+# SHA1 Fingerprint: d1:cb:ca:5d:b2:d5:2a:7f:69:3b:67:4d:e5:f0:5a:1d:0c:95:7d:f0
+# SHA256 Fingerprint: 4f:f4:60:d5:4b:9c:86:da:bf:bc:fc:57:12:e0:40:0d:2b:ed:3f:bc:4d:4f:bd:aa:86:e0:6a:dc:d2:a9:ad:7a
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R4
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R4
+# Label: "GlobalSign ECC Root CA - R4"
+# Serial: 14367148294922964480859022125800977897474
+# MD5 Fingerprint: 20:f0:27:68:d1:7e:a0:9d:0e:e6:2a:ca:df:5c:89:8e
+# SHA1 Fingerprint: 69:69:56:2e:40:80:f4:24:a1:e7:19:9f:14:ba:f3:ee:58:ab:6a:bb
+# SHA256 Fingerprint: be:c9:49:11:c2:95:56:76:db:6c:0a:55:09:86:d7:6e:3b:a0:05:66:7c:44:2c:97:62:b4:fb:b7:73:de:22:8c
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R5
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R5
+# Label: "GlobalSign ECC Root CA - R5"
+# Serial: 32785792099990507226680698011560947931244
+# MD5 Fingerprint: 9f:ad:3b:1c:02:1e:8a:ba:17:74:38:81:0c:a2:bc:08
+# SHA1 Fingerprint: 1f:24:c6:30:cd:a4:18:ef:20:69:ff:ad:4f:dd:5f:46:3a:1b:69:aa
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Staat der Nederlanden EV Root CA O=Staat der Nederlanden
+# Subject: CN=Staat der Nederlanden EV Root CA O=Staat der Nederlanden
+# Label: "Staat der Nederlanden EV Root CA"
+# Serial: 10000013
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=IdenTrust Commercial Root CA 1 O=IdenTrust
+# Subject: CN=IdenTrust Commercial Root CA 1 O=IdenTrust
+# Label: "IdenTrust Commercial Root CA 1"
+# Serial: 13298821034946342390520003877796839426
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=IdenTrust Public Sector Root CA 1 O=IdenTrust
+# Subject: CN=IdenTrust Public Sector Root CA 1 O=IdenTrust
+# Label: "IdenTrust Public Sector Root CA 1"
+# Serial: 13298821034946342390521976156843933698
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Entrust Root Certification Authority - G2 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2009 Entrust, Inc. - for authorized use only
+# Subject: CN=Entrust Root Certification Authority - G2 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2009 Entrust, Inc. - for authorized use only
+# Label: "Entrust Root Certification Authority - G2"
+# Serial: 1246989352
+# MD5 Fingerprint: 4b:e2:c9:91:96:65:0c:f4:0e:5a:93:92:a0:0a:fe:b2
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Entrust Root Certification Authority - EC1 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2012 Entrust, Inc. - for authorized use only
+# Subject: CN=Entrust Root Certification Authority - EC1 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2012 Entrust, Inc. - for authorized use only
+# Label: "Entrust Root Certification Authority - EC1"
+# Serial: 51543124481930649114116133369
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=CFCA EV ROOT O=China Financial Certification Authority
+# Subject: CN=CFCA EV ROOT O=China Financial Certification Authority
+# Label: "CFCA EV ROOT"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=OISTE WISeKey Global Root GB CA O=WISeKey OU=OISTE Foundation Endorsed
+# Subject: CN=OISTE WISeKey Global Root GB CA O=WISeKey OU=OISTE Foundation Endorsed
+# Label: "OISTE WISeKey Global Root GB CA"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=SZAFIR ROOT CA2 O=Krajowa Izba Rozliczeniowa S.A.
+# Subject: CN=SZAFIR ROOT CA2 O=Krajowa Izba Rozliczeniowa S.A.
+# Label: "SZAFIR ROOT CA2"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Certum Trusted Network CA 2 O=Unizeto Technologies S.A. OU=Certum Certification Authority
+# Subject: CN=Certum Trusted Network CA 2 O=Unizeto Technologies S.A. OU=Certum Certification Authority
+# Label: "Certum Trusted Network CA 2"
+# Serial: 44979900017204383099463764357512596969
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+-----BEGIN CERTIFICATE-----
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+# Subject: CN=Hellenic Academic and Research Institutions RootCA 2015 O=Hellenic Academic and Research Institutions Cert. Authority
+# Label: "Hellenic Academic and Research Institutions RootCA 2015"
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+-----BEGIN CERTIFICATE-----
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+# Label: "Hellenic Academic and Research Institutions ECC RootCA 2015"
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+# Label: "AC RAIZ FNMT-RCM"
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Amazon Root CA 1 O=Amazon
+# Subject: CN=Amazon Root CA 1 O=Amazon
+# Label: "Amazon Root CA 1"
+# Serial: 143266978916655856878034712317230054538369994
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Amazon Root CA 2 O=Amazon
+# Subject: CN=Amazon Root CA 2 O=Amazon
+# Label: "Amazon Root CA 2"
+# Serial: 143266982885963551818349160658925006970653239
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Amazon Root CA 3 O=Amazon
+# Subject: CN=Amazon Root CA 3 O=Amazon
+# Label: "Amazon Root CA 3"
+# Serial: 143266986699090766294700635381230934788665930
+# MD5 Fingerprint: a0:d4:ef:0b:f7:b5:d8:49:95:2a:ec:f5:c4:fc:81:87
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Amazon Root CA 4 O=Amazon
+# Subject: CN=Amazon Root CA 4 O=Amazon
+# Label: "Amazon Root CA 4"
+# Serial: 143266989758080763974105200630763877849284878
+# MD5 Fingerprint: 89:bc:27:d5:eb:17:8d:06:6a:69:d5:fd:89:47:b4:cd
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 O=Turkiye Bilimsel ve Teknolojik Arastirma Kurumu - TUBITAK OU=Kamu Sertifikasyon Merkezi - Kamu SM
+# Subject: CN=TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 O=Turkiye Bilimsel ve Teknolojik Arastirma Kurumu - TUBITAK OU=Kamu Sertifikasyon Merkezi - Kamu SM
+# Label: "TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GDCA TrustAUTH R5 ROOT O=GUANG DONG CERTIFICATE AUTHORITY CO.,LTD.
+# Subject: CN=GDCA TrustAUTH R5 ROOT O=GUANG DONG CERTIFICATE AUTHORITY CO.,LTD.
+# Label: "GDCA TrustAUTH R5 ROOT"
+# Serial: 9009899650740120186
+# MD5 Fingerprint: 63:cc:d9:3d:34:35:5c:6f:53:a3:e2:08:70:48:1f:b4
+# SHA1 Fingerprint: 0f:36:38:5b:81:1a:25:c3:9b:31:4e:83:ca:e9:34:66:70:cc:74:b4
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=TrustCor RootCert CA-1 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority
+# Subject: CN=TrustCor RootCert CA-1 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority
+# Label: "TrustCor RootCert CA-1"
+# Serial: 15752444095811006489
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+-----BEGIN CERTIFICATE-----
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+
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+# Subject: CN=TrustCor RootCert CA-2 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority
+# Label: "TrustCor RootCert CA-2"
+# Serial: 2711694510199101698
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TrustCor ECA-1 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority
+# Subject: CN=TrustCor ECA-1 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority
+# Label: "TrustCor ECA-1"
+# Serial: 9548242946988625984
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SSL.com Root Certification Authority RSA O=SSL Corporation
+# Subject: CN=SSL.com Root Certification Authority RSA O=SSL Corporation
+# Label: "SSL.com Root Certification Authority RSA"
+# Serial: 8875640296558310041
+# MD5 Fingerprint: 86:69:12:c0:70:f1:ec:ac:ac:c2:d5:bc:a5:5b:a1:29
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SSL.com Root Certification Authority ECC O=SSL Corporation
+# Subject: CN=SSL.com Root Certification Authority ECC O=SSL Corporation
+# Label: "SSL.com Root Certification Authority ECC"
+# Serial: 8495723813297216424
+# MD5 Fingerprint: 2e:da:e4:39:7f:9c:8f:37:d1:70:9f:26:17:51:3a:8e
+# SHA1 Fingerprint: c3:19:7c:39:24:e6:54:af:1b:c4:ab:20:95:7a:e2:c3:0e:13:02:6a
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SSL.com EV Root Certification Authority RSA R2 O=SSL Corporation
+# Subject: CN=SSL.com EV Root Certification Authority RSA R2 O=SSL Corporation
+# Label: "SSL.com EV Root Certification Authority RSA R2"
+# Serial: 6248227494352943350
+# MD5 Fingerprint: e1:1e:31:58:1a:ae:54:53:02:f6:17:6a:11:7b:4d:95
+# SHA1 Fingerprint: 74:3a:f0:52:9b:d0:32:a0:f4:4a:83:cd:d4:ba:a9:7b:7c:2e:c4:9a
+# SHA256 Fingerprint: 2e:7b:f1:6c:c2:24:85:a7:bb:e2:aa:86:96:75:07:61:b0:ae:39:be:3b:2f:e9:d0:cc:6d:4e:f7:34:91:42:5c
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SSL.com EV Root Certification Authority ECC O=SSL Corporation
+# Subject: CN=SSL.com EV Root Certification Authority ECC O=SSL Corporation
+# Label: "SSL.com EV Root Certification Authority ECC"
+# Serial: 3182246526754555285
+# MD5 Fingerprint: 59:53:22:65:83:42:01:54:c0:ce:42:b9:5a:7c:f2:90
+# SHA1 Fingerprint: 4c:dd:51:a3:d1:f5:20:32:14:b0:c6:c5:32:23:03:91:c7:46:42:6d
+# SHA256 Fingerprint: 22:a2:c1:f7:bd:ed:70:4c:c1:e7:01:b5:f4:08:c3:10:88:0f:e9:56:b5:de:2a:4a:44:f9:9c:87:3a:25:a7:c8
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R6
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R6
+# Label: "GlobalSign Root CA - R6"
+# Serial: 1417766617973444989252670301619537
+# MD5 Fingerprint: 4f:dd:07:e4:d4:22:64:39:1e:0c:37:42:ea:d1:c6:ae
+# SHA1 Fingerprint: 80:94:64:0e:b5:a7:a1:ca:11:9c:1f:dd:d5:9f:81:02:63:a7:fb:d1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=OISTE WISeKey Global Root GC CA O=WISeKey OU=OISTE Foundation Endorsed
+# Subject: CN=OISTE WISeKey Global Root GC CA O=WISeKey OU=OISTE Foundation Endorsed
+# Label: "OISTE WISeKey Global Root GC CA"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GTS Root R1 O=Google Trust Services LLC
+# Subject: CN=GTS Root R1 O=Google Trust Services LLC
+# Label: "GTS Root R1"
+# Serial: 146587175971765017618439757810265552097
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GTS Root R2 O=Google Trust Services LLC
+# Subject: CN=GTS Root R2 O=Google Trust Services LLC
+# Label: "GTS Root R2"
+# Serial: 146587176055767053814479386953112547951
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GTS Root R3 O=Google Trust Services LLC
+# Subject: CN=GTS Root R3 O=Google Trust Services LLC
+# Label: "GTS Root R3"
+# Serial: 146587176140553309517047991083707763997
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GTS Root R4 O=Google Trust Services LLC
+# Subject: CN=GTS Root R4 O=Google Trust Services LLC
+# Label: "GTS Root R4"
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+-----BEGIN CERTIFICATE-----
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+# Subject: CN=UCA Global G2 Root O=UniTrust
+# Label: "UCA Global G2 Root"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=UCA Extended Validation Root O=UniTrust
+# Subject: CN=UCA Extended Validation Root O=UniTrust
+# Label: "UCA Extended Validation Root"
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+# Issuer: CN=Certigna Root CA O=Dhimyotis OU=0002 48146308100036
+# Subject: CN=Certigna Root CA O=Dhimyotis OU=0002 48146308100036
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=emSign Root CA - G1 O=eMudhra Technologies Limited OU=emSign PKI
+# Subject: CN=emSign Root CA - G1 O=eMudhra Technologies Limited OU=emSign PKI
+# Label: "emSign Root CA - G1"
+# Serial: 235931866688319308814040
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=emSign ECC Root CA - G3 O=eMudhra Technologies Limited OU=emSign PKI
+# Subject: CN=emSign ECC Root CA - G3 O=eMudhra Technologies Limited OU=emSign PKI
+# Label: "emSign ECC Root CA - G3"
+# Serial: 287880440101571086945156
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=emSign Root CA - C1 O=eMudhra Inc OU=emSign PKI
+# Subject: CN=emSign Root CA - C1 O=eMudhra Inc OU=emSign PKI
+# Label: "emSign Root CA - C1"
+# Serial: 825510296613316004955058
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=emSign ECC Root CA - C3 O=eMudhra Inc OU=emSign PKI
+# Subject: CN=emSign ECC Root CA - C3 O=eMudhra Inc OU=emSign PKI
+# Label: "emSign ECC Root CA - C3"
+# Serial: 582948710642506000014504
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Hongkong Post Root CA 3 O=Hongkong Post
+# Subject: CN=Hongkong Post Root CA 3 O=Hongkong Post
+# Label: "Hongkong Post Root CA 3"
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Entrust Root Certification Authority - G4 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2015 Entrust, Inc. - for authorized use only
+# Subject: CN=Entrust Root Certification Authority - G4 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2015 Entrust, Inc. - for authorized use only
+# Label: "Entrust Root Certification Authority - G4"
+# Serial: 289383649854506086828220374796556676440
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Microsoft ECC Root Certificate Authority 2017 O=Microsoft Corporation
+# Subject: CN=Microsoft ECC Root Certificate Authority 2017 O=Microsoft Corporation
+# Label: "Microsoft ECC Root Certificate Authority 2017"
+# Serial: 136839042543790627607696632466672567020
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Microsoft RSA Root Certificate Authority 2017 O=Microsoft Corporation
+# Subject: CN=Microsoft RSA Root Certificate Authority 2017 O=Microsoft Corporation
+# Label: "Microsoft RSA Root Certificate Authority 2017"
+# Serial: 40975477897264996090493496164228220339
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=e-Szigno Root CA 2017 O=Microsec Ltd.
+# Subject: CN=e-Szigno Root CA 2017 O=Microsec Ltd.
+# Label: "e-Szigno Root CA 2017"
+# Serial: 411379200276854331539784714
+# MD5 Fingerprint: de:1f:f6:9e:84:ae:a7:b4:21:ce:1e:58:7d:d1:84:98
+# SHA1 Fingerprint: 89:d4:83:03:4f:9e:9a:48:80:5f:72:37:d4:a9:a6:ef:cb:7c:1f:d1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=CERTSIGN SA OU=certSIGN ROOT CA G2
+# Subject: O=CERTSIGN SA OU=certSIGN ROOT CA G2
+# Label: "certSIGN Root CA G2"
+# Serial: 313609486401300475190
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+# Issuer: CN=Trustwave Global Certification Authority O=Trustwave Holdings, Inc.
+# Subject: CN=Trustwave Global Certification Authority O=Trustwave Holdings, Inc.
+# Label: "Trustwave Global Certification Authority"
+# Serial: 1846098327275375458322922162
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Trustwave Global ECC P256 Certification Authority O=Trustwave Holdings, Inc.
+# Subject: CN=Trustwave Global ECC P256 Certification Authority O=Trustwave Holdings, Inc.
+# Label: "Trustwave Global ECC P256 Certification Authority"
+# Serial: 4151900041497450638097112925
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Trustwave Global ECC P384 Certification Authority O=Trustwave Holdings, Inc.
+# Subject: CN=Trustwave Global ECC P384 Certification Authority O=Trustwave Holdings, Inc.
+# Label: "Trustwave Global ECC P384 Certification Authority"
+# Serial: 2704997926503831671788816187
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=NAVER Global Root Certification Authority O=NAVER BUSINESS PLATFORM Corp.
+# Subject: CN=NAVER Global Root Certification Authority O=NAVER BUSINESS PLATFORM Corp.
+# Label: "NAVER Global Root Certification Authority"
+# Serial: 9013692873798656336226253319739695165984492813
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=AC RAIZ FNMT-RCM SERVIDORES SEGUROS O=FNMT-RCM OU=Ceres
+# Subject: CN=AC RAIZ FNMT-RCM SERVIDORES SEGUROS O=FNMT-RCM OU=Ceres
+# Label: "AC RAIZ FNMT-RCM SERVIDORES SEGUROS"
+# Serial: 131542671362353147877283741781055151509
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GlobalSign Root R46 O=GlobalSign nv-sa
+# Subject: CN=GlobalSign Root R46 O=GlobalSign nv-sa
+# Label: "GlobalSign Root R46"
+# Serial: 1552617688466950547958867513931858518042577
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GlobalSign Root E46 O=GlobalSign nv-sa
+# Subject: CN=GlobalSign Root E46 O=GlobalSign nv-sa
+# Label: "GlobalSign Root E46"
+# Serial: 1552617690338932563915843282459653771421763
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GLOBALTRUST 2020 O=e-commerce monitoring GmbH
+# Subject: CN=GLOBALTRUST 2020 O=e-commerce monitoring GmbH
+# Label: "GLOBALTRUST 2020"
+# Serial: 109160994242082918454945253
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=ANF Secure Server Root CA O=ANF Autoridad de Certificacion OU=ANF CA Raiz
+# Subject: CN=ANF Secure Server Root CA O=ANF Autoridad de Certificacion OU=ANF CA Raiz
+# Label: "ANF Secure Server Root CA"
+# Serial: 996390341000653745
+# MD5 Fingerprint: 26:a6:44:5a:d9:af:4e:2f:b2:1d:b6:65:b0:4e:e8:96
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Certum EC-384 CA O=Asseco Data Systems S.A. OU=Certum Certification Authority
+# Subject: CN=Certum EC-384 CA O=Asseco Data Systems S.A. OU=Certum Certification Authority
+# Label: "Certum EC-384 CA"
+# Serial: 160250656287871593594747141429395092468
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Certum Trusted Root CA O=Asseco Data Systems S.A. OU=Certum Certification Authority
+# Subject: CN=Certum Trusted Root CA O=Asseco Data Systems S.A. OU=Certum Certification Authority
+# Label: "Certum Trusted Root CA"
+# Serial: 40870380103424195783807378461123655149
+# MD5 Fingerprint: 51:e1:c2:e7:fe:4c:84:af:59:0e:2f:f4:54:6f:ea:29
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+-----BEGIN CERTIFICATE-----
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+mqi4NboMOvJEGyCI98Ul1z3G4z5D3Yf+xOr1Uz5MZf87Sst4WmsXXw3Hw09Omiqi
+7VdNIuJGmj8PkTQkfVXjjJU30xrwCSss0smNtA0Aq2cpKNgB9RkEth2+dv5yXMSF
+ytKAQd8FqKPVhJBPC/PgP5sZ0jeJP/J7UhyM9uH3PAeXjA6iWYEMspA90+NZRu0P
+qafegGtaqge2Gcu8V/OXIXoMsSt0Puvap2ctTMSYnjYJdmZm/Bo/6khUHL4wvYBQ
+v3y1zgD2DGHZ5yQD4OMBgQ692IU0iL2yNqh7XAjlRICMb/gv1SHKHRzQ+8S1h9E6
+Tsd2tTVItQIDAQABo0IwQDAPBgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBSM+xx1
+vALTn04uSNn5YFSqxLNP+jAOBgNVHQ8BAf8EBAMCAQYwDQYJKoZIhvcNAQENBQAD
+ggIBAEii1QALLtA/vBzVtVRJHlpr9OTy4EA34MwUe7nJ+jW1dReTagVphZzNTxl4
+WxmB82M+w85bj/UvXgF2Ez8sALnNllI5SW0ETsXpD4YN4fqzX4IS8TrOZgYkNCvo
+zMrnadyHncI013nR03e4qllY/p0m+jiGPp2Kh2RX5Rc64vmNueMzeMGQ2Ljdt4NR
+5MTMI9UGfOZR0800McD2RrsLrfw9EAUqO0qRJe6M1ISHgCq8CYyqOhNf6DR5UMEQ
+GfnTKB7U0VEwKbOukGfWHwpjscWpxkIxYxeU72nLL/qMFH3EQxiJ2fAyQOaA4kZf
+5ePBAFmo+eggvIksDkc0C+pXwlM2/KfUrzHN/gLldfq5Jwn58/U7yn2fqSLLiMmq
+0Uc9NneoWWRrJ8/vJ8HjJLWG965+Mk2weWjROeiQWMODvA8s1pfrzgzhIMfatz7D
+P78v3DSk+yshzWePS/Tj6tQ/50+6uaWTRRxmHyH6ZF5v4HaUMst19W7l9o/HuKTM
+qJZ9ZPskWkoDbGs4xugDQ5r3V7mzKWmTOPQD8rv7gmsHINFSH5pkAnuYZttcTVoP
+0ISVoDwUQwbKytu4QTbaakRnh6+v40URFWkIsr4WOZckbxJF0WddCajJFdr60qZf
+E2Efv4WstK2tBZQIgx51F9NxO5NQI1mg7TyRVJ12AMXDuDjb
+-----END CERTIFICATE-----
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/core.py b/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/core.py
new file mode 100644
index 0000000..b8140cf
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/certifi/core.py
@@ -0,0 +1,76 @@
+# -*- coding: utf-8 -*-
+
+"""
+certifi.py
+~~~~~~~~~~
+
+This module returns the installation location of cacert.pem or its contents.
+"""
+import os
+
+
+class _PipPatchedCertificate(Exception):
+    pass
+
+
+try:
+    # Return a certificate file on disk for a standalone pip zipapp running in
+    # an isolated build environment to use. Passing --cert to the standalone
+    # pip does not work since requests calls where() unconditionally on import.
+    _PIP_STANDALONE_CERT = os.environ.get("_PIP_STANDALONE_CERT")
+    if _PIP_STANDALONE_CERT:
+        def where():
+            return _PIP_STANDALONE_CERT
+        raise _PipPatchedCertificate()
+
+    from importlib.resources import path as get_path, read_text
+
+    _CACERT_CTX = None
+    _CACERT_PATH = None
+
+    def where():
+        # This is slightly terrible, but we want to delay extracting the file
+        # in cases where we're inside of a zipimport situation until someone
+        # actually calls where(), but we don't want to re-extract the file
+        # on every call of where(), so we'll do it once then store it in a
+        # global variable.
+        global _CACERT_CTX
+        global _CACERT_PATH
+        if _CACERT_PATH is None:
+            # This is slightly janky, the importlib.resources API wants you to
+            # manage the cleanup of this file, so it doesn't actually return a
+            # path, it returns a context manager that will give you the path
+            # when you enter it and will do any cleanup when you leave it. In
+            # the common case of not needing a temporary file, it will just
+            # return the file system location and the __exit__() is a no-op.
+            #
+            # We also have to hold onto the actual context manager, because
+            # it will do the cleanup whenever it gets garbage collected, so
+            # we will also store that at the global level as well.
+            _CACERT_CTX = get_path("pip._vendor.certifi", "cacert.pem")
+            _CACERT_PATH = str(_CACERT_CTX.__enter__())
+
+        return _CACERT_PATH
+
+except _PipPatchedCertificate:
+    pass
+
+except ImportError:
+    # This fallback will work for Python versions prior to 3.7 that lack the
+    # importlib.resources module but relies on the existing `where` function
+    # so won't address issues with environments like PyOxidizer that don't set
+    # __file__ on modules.
+    def read_text(_module, _path, encoding="ascii"):
+        with open(where(), "r", encoding=encoding) as data:
+            return data.read()
+
+    # If we don't have importlib.resources, then we will just do the old logic
+    # of assuming we're on the filesystem and munge the path directly.
+    def where():
+        f = os.path.dirname(__file__)
+
+        return os.path.join(f, "cacert.pem")
+
+
+def contents():
+    return read_text("certifi", "cacert.pem", encoding="ascii")
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/__init__.py
new file mode 100644
index 0000000..80ad254
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/__init__.py
@@ -0,0 +1,83 @@
+######################## BEGIN LICENSE BLOCK ########################
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+
+from .universaldetector import UniversalDetector
+from .enums import InputState
+from .version import __version__, VERSION
+
+
+__all__ = ['UniversalDetector', 'detect', 'detect_all', '__version__', 'VERSION']
+
+
+def detect(byte_str):
+    """
+    Detect the encoding of the given byte string.
+
+    :param byte_str:     The byte sequence to examine.
+    :type byte_str:      ``bytes`` or ``bytearray``
+    """
+    if not isinstance(byte_str, bytearray):
+        if not isinstance(byte_str, bytes):
+            raise TypeError('Expected object of type bytes or bytearray, got: '
+                            '{}'.format(type(byte_str)))
+        else:
+            byte_str = bytearray(byte_str)
+    detector = UniversalDetector()
+    detector.feed(byte_str)
+    return detector.close()
+
+
+def detect_all(byte_str):
+    """
+    Detect all the possible encodings of the given byte string.
+
+    :param byte_str:     The byte sequence to examine.
+    :type byte_str:      ``bytes`` or ``bytearray``
+    """
+    if not isinstance(byte_str, bytearray):
+        if not isinstance(byte_str, bytes):
+            raise TypeError('Expected object of type bytes or bytearray, got: '
+                            '{}'.format(type(byte_str)))
+        else:
+            byte_str = bytearray(byte_str)
+
+    detector = UniversalDetector()
+    detector.feed(byte_str)
+    detector.close()
+
+    if detector._input_state == InputState.HIGH_BYTE:
+        results = []
+        for prober in detector._charset_probers:
+            if prober.get_confidence() > detector.MINIMUM_THRESHOLD:
+                charset_name = prober.charset_name
+                lower_charset_name = prober.charset_name.lower()
+                # Use Windows encoding name instead of ISO-8859 if we saw any
+                # extra Windows-specific bytes
+                if lower_charset_name.startswith('iso-8859'):
+                    if detector._has_win_bytes:
+                        charset_name = detector.ISO_WIN_MAP.get(lower_charset_name,
+                                                            charset_name)
+                results.append({
+                    'encoding': charset_name,
+                    'confidence': prober.get_confidence(),
+                    'language': prober.language,
+                })
+        if len(results) > 0:
+            return sorted(results, key=lambda result: -result['confidence'])
+
+    return [detector.result]
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/big5freq.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/big5freq.py
new file mode 100644
index 0000000..38f3251
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/big5freq.py
@@ -0,0 +1,386 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# Big5 frequency table
+# by Taiwan's Mandarin Promotion Council
+# 
+#
+# 128  --> 0.42261
+# 256  --> 0.57851
+# 512  --> 0.74851
+# 1024 --> 0.89384
+# 2048 --> 0.97583
+#
+# Ideal Distribution Ratio = 0.74851/(1-0.74851) =2.98
+# Random Distribution Ration = 512/(5401-512)=0.105
+#
+# Typical Distribution Ratio about 25% of Ideal one, still much higher than RDR
+
+BIG5_TYPICAL_DISTRIBUTION_RATIO = 0.75
+
+#Char to FreqOrder table
+BIG5_TABLE_SIZE = 5376
+
+BIG5_CHAR_TO_FREQ_ORDER = (
+   1,1801,1506, 255,1431, 198,   9,  82,   6,5008, 177, 202,3681,1256,2821, 110, #   16
+3814,  33,3274, 261,  76,  44,2114,  16,2946,2187,1176, 659,3971,  26,3451,2653, #   32
+1198,3972,3350,4202, 410,2215, 302, 590, 361,1964,   8, 204,  58,4510,5009,1932, #   48
+  63,5010,5011, 317,1614,  75, 222, 159,4203,2417,1480,5012,3555,3091, 224,2822, #   64
+3682,   3,  10,3973,1471,  29,2787,1135,2866,1940, 873, 130,3275,1123, 312,5013, #   80
+4511,2052, 507, 252, 682,5014, 142,1915, 124, 206,2947,  34,3556,3204,  64, 604, #   96
+5015,2501,1977,1978, 155,1991, 645, 641,1606,5016,3452, 337,  72, 406,5017,  80, #  112
+ 630, 238,3205,1509, 263, 939,1092,2654, 756,1440,1094,3453, 449,  69,2987, 591, #  128
+ 179,2096, 471, 115,2035,1844,  60,  50,2988, 134, 806,1869, 734,2036,3454, 180, #  144
+ 995,1607, 156, 537,2907, 688,5018, 319,1305, 779,2145, 514,2379, 298,4512, 359, #  160
+2502,  90,2716,1338, 663,  11, 906,1099,2553,  20,2441, 182, 532,1716,5019, 732, #  176
+1376,4204,1311,1420,3206,  25,2317,1056, 113, 399, 382,1950, 242,3455,2474, 529, #  192
+3276, 475,1447,3683,5020, 117,  21, 656, 810,1297,2300,2334,3557,5021, 126,4205, #  208
+ 706, 456, 150, 613,4513,  71,1118,2037,4206, 145,3092,  85, 835, 486,2115,1246, #  224
+1426, 428, 727,1285,1015, 800, 106, 623, 303,1281,5022,2128,2359, 347,3815, 221, #  240
+3558,3135,5023,1956,1153,4207,  83, 296,1199,3093, 192, 624,  93,5024, 822,1898, #  256
+2823,3136, 795,2065, 991,1554,1542,1592,  27,  43,2867, 859, 139,1456, 860,4514, #  272
+ 437, 712,3974, 164,2397,3137, 695, 211,3037,2097, 195,3975,1608,3559,3560,3684, #  288
+3976, 234, 811,2989,2098,3977,2233,1441,3561,1615,2380, 668,2077,1638, 305, 228, #  304
+1664,4515, 467, 415,5025, 262,2099,1593, 239, 108, 300, 200,1033, 512,1247,2078, #  320
+5026,5027,2176,3207,3685,2682, 593, 845,1062,3277,  88,1723,2038,3978,1951, 212, #  336
+ 266, 152, 149, 468,1899,4208,4516,  77, 187,5028,3038,  37,   5,2990,5029,3979, #  352
+5030,5031,  39,2524,4517,2908,3208,2079,  55, 148,  74,4518, 545, 483,1474,1029, #  368
+1665, 217,1870,1531,3138,1104,2655,4209,  24, 172,3562, 900,3980,3563,3564,4519, #  384
+  32,1408,2824,1312, 329, 487,2360,2251,2717, 784,2683,   4,3039,3351,1427,1789, #  400
+ 188, 109, 499,5032,3686,1717,1790, 888,1217,3040,4520,5033,3565,5034,3352,1520, #  416
+3687,3981, 196,1034, 775,5035,5036, 929,1816, 249, 439,  38,5037,1063,5038, 794, #  432
+3982,1435,2301,  46, 178,3278,2066,5039,2381,5040, 214,1709,4521, 804,  35, 707, #  448
+ 324,3688,1601,2554, 140, 459,4210,5041,5042,1365, 839, 272, 978,2262,2580,3456, #  464
+2129,1363,3689,1423, 697, 100,3094,  48,  70,1231, 495,3139,2196,5043,1294,5044, #  480
+2080, 462, 586,1042,3279, 853, 256, 988, 185,2382,3457,1698, 434,1084,5045,3458, #  496
+ 314,2625,2788,4522,2335,2336, 569,2285, 637,1817,2525, 757,1162,1879,1616,3459, #  512
+ 287,1577,2116, 768,4523,1671,2868,3566,2526,1321,3816, 909,2418,5046,4211, 933, #  528
+3817,4212,2053,2361,1222,4524, 765,2419,1322, 786,4525,5047,1920,1462,1677,2909, #  544
+1699,5048,4526,1424,2442,3140,3690,2600,3353,1775,1941,3460,3983,4213, 309,1369, #  560
+1130,2825, 364,2234,1653,1299,3984,3567,3985,3986,2656, 525,1085,3041, 902,2001, #  576
+1475, 964,4527, 421,1845,1415,1057,2286, 940,1364,3141, 376,4528,4529,1381,   7, #  592
+2527, 983,2383, 336,1710,2684,1846, 321,3461, 559,1131,3042,2752,1809,1132,1313, #  608
+ 265,1481,1858,5049, 352,1203,2826,3280, 167,1089, 420,2827, 776, 792,1724,3568, #  624
+4214,2443,3281,5050,4215,5051, 446, 229, 333,2753, 901,3818,1200,1557,4530,2657, #  640
+1921, 395,2754,2685,3819,4216,1836, 125, 916,3209,2626,4531,5052,5053,3820,5054, #  656
+5055,5056,4532,3142,3691,1133,2555,1757,3462,1510,2318,1409,3569,5057,2146, 438, #  672
+2601,2910,2384,3354,1068, 958,3043, 461, 311,2869,2686,4217,1916,3210,4218,1979, #  688
+ 383, 750,2755,2627,4219, 274, 539, 385,1278,1442,5058,1154,1965, 384, 561, 210, #  704
+  98,1295,2556,3570,5059,1711,2420,1482,3463,3987,2911,1257, 129,5060,3821, 642, #  720
+ 523,2789,2790,2658,5061, 141,2235,1333,  68, 176, 441, 876, 907,4220, 603,2602, #  736
+ 710, 171,3464, 404, 549,  18,3143,2398,1410,3692,1666,5062,3571,4533,2912,4534, #  752
+5063,2991, 368,5064, 146, 366,  99, 871,3693,1543, 748, 807,1586,1185,  22,2263, #  768
+ 379,3822,3211,5065,3212, 505,1942,2628,1992,1382,2319,5066, 380,2362, 218, 702, #  784
+1818,1248,3465,3044,3572,3355,3282,5067,2992,3694, 930,3283,3823,5068,  59,5069, #  800
+ 585, 601,4221, 497,3466,1112,1314,4535,1802,5070,1223,1472,2177,5071, 749,1837, #  816
+ 690,1900,3824,1773,3988,1476, 429,1043,1791,2236,2117, 917,4222, 447,1086,1629, #  832
+5072, 556,5073,5074,2021,1654, 844,1090, 105, 550, 966,1758,2828,1008,1783, 686, #  848
+1095,5075,2287, 793,1602,5076,3573,2603,4536,4223,2948,2302,4537,3825, 980,2503, #  864
+ 544, 353, 527,4538, 908,2687,2913,5077, 381,2629,1943,1348,5078,1341,1252, 560, #  880
+3095,5079,3467,2870,5080,2054, 973, 886,2081, 143,4539,5081,5082, 157,3989, 496, #  896
+4224,  57, 840, 540,2039,4540,4541,3468,2118,1445, 970,2264,1748,1966,2082,4225, #  912
+3144,1234,1776,3284,2829,3695, 773,1206,2130,1066,2040,1326,3990,1738,1725,4226, #  928
+ 279,3145,  51,1544,2604, 423,1578,2131,2067, 173,4542,1880,5083,5084,1583, 264, #  944
+ 610,3696,4543,2444, 280, 154,5085,5086,5087,1739, 338,1282,3096, 693,2871,1411, #  960
+1074,3826,2445,5088,4544,5089,5090,1240, 952,2399,5091,2914,1538,2688, 685,1483, #  976
+4227,2475,1436, 953,4228,2055,4545, 671,2400,  79,4229,2446,3285, 608, 567,2689, #  992
+3469,4230,4231,1691, 393,1261,1792,2401,5092,4546,5093,5094,5095,5096,1383,1672, # 1008
+3827,3213,1464, 522,1119, 661,1150, 216, 675,4547,3991,1432,3574, 609,4548,2690, # 1024
+2402,5097,5098,5099,4232,3045,   0,5100,2476, 315, 231,2447, 301,3356,4549,2385, # 1040
+5101, 233,4233,3697,1819,4550,4551,5102,  96,1777,1315,2083,5103, 257,5104,1810, # 1056
+3698,2718,1139,1820,4234,2022,1124,2164,2791,1778,2659,5105,3097, 363,1655,3214, # 1072
+5106,2993,5107,5108,5109,3992,1567,3993, 718, 103,3215, 849,1443, 341,3357,2949, # 1088
+1484,5110,1712, 127,  67, 339,4235,2403, 679,1412, 821,5111,5112, 834, 738, 351, # 1104
+2994,2147, 846, 235,1497,1881, 418,1993,3828,2719, 186,1100,2148,2756,3575,1545, # 1120
+1355,2950,2872,1377, 583,3994,4236,2581,2995,5113,1298,3699,1078,2557,3700,2363, # 1136
+  78,3829,3830, 267,1289,2100,2002,1594,4237, 348, 369,1274,2197,2178,1838,4552, # 1152
+1821,2830,3701,2757,2288,2003,4553,2951,2758, 144,3358, 882,4554,3995,2759,3470, # 1168
+4555,2915,5114,4238,1726, 320,5115,3996,3046, 788,2996,5116,2831,1774,1327,2873, # 1184
+3997,2832,5117,1306,4556,2004,1700,3831,3576,2364,2660, 787,2023, 506, 824,3702, # 1200
+ 534, 323,4557,1044,3359,2024,1901, 946,3471,5118,1779,1500,1678,5119,1882,4558, # 1216
+ 165, 243,4559,3703,2528, 123, 683,4239, 764,4560,  36,3998,1793, 589,2916, 816, # 1232
+ 626,1667,3047,2237,1639,1555,1622,3832,3999,5120,4000,2874,1370,1228,1933, 891, # 1248
+2084,2917, 304,4240,5121, 292,2997,2720,3577, 691,2101,4241,1115,4561, 118, 662, # 1264
+5122, 611,1156, 854,2386,1316,2875,   2, 386, 515,2918,5123,5124,3286, 868,2238, # 1280
+1486, 855,2661, 785,2216,3048,5125,1040,3216,3578,5126,3146, 448,5127,1525,5128, # 1296
+2165,4562,5129,3833,5130,4242,2833,3579,3147, 503, 818,4001,3148,1568, 814, 676, # 1312
+1444, 306,1749,5131,3834,1416,1030, 197,1428, 805,2834,1501,4563,5132,5133,5134, # 1328
+1994,5135,4564,5136,5137,2198,  13,2792,3704,2998,3149,1229,1917,5138,3835,2132, # 1344
+5139,4243,4565,2404,3580,5140,2217,1511,1727,1120,5141,5142, 646,3836,2448, 307, # 1360
+5143,5144,1595,3217,5145,5146,5147,3705,1113,1356,4002,1465,2529,2530,5148, 519, # 1376
+5149, 128,2133,  92,2289,1980,5150,4003,1512, 342,3150,2199,5151,2793,2218,1981, # 1392
+3360,4244, 290,1656,1317, 789, 827,2365,5152,3837,4566, 562, 581,4004,5153, 401, # 1408
+4567,2252,  94,4568,5154,1399,2794,5155,1463,2025,4569,3218,1944,5156, 828,1105, # 1424
+4245,1262,1394,5157,4246, 605,4570,5158,1784,2876,5159,2835, 819,2102, 578,2200, # 1440
+2952,5160,1502, 436,3287,4247,3288,2836,4005,2919,3472,3473,5161,2721,2320,5162, # 1456
+5163,2337,2068,  23,4571, 193, 826,3838,2103, 699,1630,4248,3098, 390,1794,1064, # 1472
+3581,5164,1579,3099,3100,1400,5165,4249,1839,1640,2877,5166,4572,4573, 137,4250, # 1488
+ 598,3101,1967, 780, 104, 974,2953,5167, 278, 899, 253, 402, 572, 504, 493,1339, # 1504
+5168,4006,1275,4574,2582,2558,5169,3706,3049,3102,2253, 565,1334,2722, 863,  41, # 1520
+5170,5171,4575,5172,1657,2338,  19, 463,2760,4251, 606,5173,2999,3289,1087,2085, # 1536
+1323,2662,3000,5174,1631,1623,1750,4252,2691,5175,2878, 791,2723,2663,2339, 232, # 1552
+2421,5176,3001,1498,5177,2664,2630, 755,1366,3707,3290,3151,2026,1609, 119,1918, # 1568
+3474, 862,1026,4253,5178,4007,3839,4576,4008,4577,2265,1952,2477,5179,1125, 817, # 1584
+4254,4255,4009,1513,1766,2041,1487,4256,3050,3291,2837,3840,3152,5180,5181,1507, # 1600
+5182,2692, 733,  40,1632,1106,2879, 345,4257, 841,2531, 230,4578,3002,1847,3292, # 1616
+3475,5183,1263, 986,3476,5184, 735, 879, 254,1137, 857, 622,1300,1180,1388,1562, # 1632
+4010,4011,2954, 967,2761,2665,1349, 592,2134,1692,3361,3003,1995,4258,1679,4012, # 1648
+1902,2188,5185, 739,3708,2724,1296,1290,5186,4259,2201,2202,1922,1563,2605,2559, # 1664
+1871,2762,3004,5187, 435,5188, 343,1108, 596,  17,1751,4579,2239,3477,3709,5189, # 1680
+4580, 294,3582,2955,1693, 477, 979, 281,2042,3583, 643,2043,3710,2631,2795,2266, # 1696
+1031,2340,2135,2303,3584,4581, 367,1249,2560,5190,3585,5191,4582,1283,3362,2005, # 1712
+ 240,1762,3363,4583,4584, 836,1069,3153, 474,5192,2149,2532, 268,3586,5193,3219, # 1728
+1521,1284,5194,1658,1546,4260,5195,3587,3588,5196,4261,3364,2693,1685,4262, 961, # 1744
+1673,2632, 190,2006,2203,3841,4585,4586,5197, 570,2504,3711,1490,5198,4587,2633, # 1760
+3293,1957,4588, 584,1514, 396,1045,1945,5199,4589,1968,2449,5200,5201,4590,4013, # 1776
+ 619,5202,3154,3294, 215,2007,2796,2561,3220,4591,3221,4592, 763,4263,3842,4593, # 1792
+5203,5204,1958,1767,2956,3365,3712,1174, 452,1477,4594,3366,3155,5205,2838,1253, # 1808
+2387,2189,1091,2290,4264, 492,5206, 638,1169,1825,2136,1752,4014, 648, 926,1021, # 1824
+1324,4595, 520,4596, 997, 847,1007, 892,4597,3843,2267,1872,3713,2405,1785,4598, # 1840
+1953,2957,3103,3222,1728,4265,2044,3714,4599,2008,1701,3156,1551,  30,2268,4266, # 1856
+5207,2027,4600,3589,5208, 501,5209,4267, 594,3478,2166,1822,3590,3479,3591,3223, # 1872
+ 829,2839,4268,5210,1680,3157,1225,4269,5211,3295,4601,4270,3158,2341,5212,4602, # 1888
+4271,5213,4015,4016,5214,1848,2388,2606,3367,5215,4603, 374,4017, 652,4272,4273, # 1904
+ 375,1140, 798,5216,5217,5218,2366,4604,2269, 546,1659, 138,3051,2450,4605,5219, # 1920
+2254, 612,1849, 910, 796,3844,1740,1371, 825,3845,3846,5220,2920,2562,5221, 692, # 1936
+ 444,3052,2634, 801,4606,4274,5222,1491, 244,1053,3053,4275,4276, 340,5223,4018, # 1952
+1041,3005, 293,1168,  87,1357,5224,1539, 959,5225,2240, 721, 694,4277,3847, 219, # 1968
+1478, 644,1417,3368,2666,1413,1401,1335,1389,4019,5226,5227,3006,2367,3159,1826, # 1984
+ 730,1515, 184,2840,  66,4607,5228,1660,2958, 246,3369, 378,1457, 226,3480, 975, # 2000
+4020,2959,1264,3592, 674, 696,5229, 163,5230,1141,2422,2167, 713,3593,3370,4608, # 2016
+4021,5231,5232,1186,  15,5233,1079,1070,5234,1522,3224,3594, 276,1050,2725, 758, # 2032
+1126, 653,2960,3296,5235,2342, 889,3595,4022,3104,3007, 903,1250,4609,4023,3481, # 2048
+3596,1342,1681,1718, 766,3297, 286,  89,2961,3715,5236,1713,5237,2607,3371,3008, # 2064
+5238,2962,2219,3225,2880,5239,4610,2505,2533, 181, 387,1075,4024, 731,2190,3372, # 2080
+5240,3298, 310, 313,3482,2304, 770,4278,  54,3054, 189,4611,3105,3848,4025,5241, # 2096
+1230,1617,1850, 355,3597,4279,4612,3373, 111,4280,3716,1350,3160,3483,3055,4281, # 2112
+2150,3299,3598,5242,2797,4026,4027,3009, 722,2009,5243,1071, 247,1207,2343,2478, # 2128
+1378,4613,2010, 864,1437,1214,4614, 373,3849,1142,2220, 667,4615, 442,2763,2563, # 2144
+3850,4028,1969,4282,3300,1840, 837, 170,1107, 934,1336,1883,5244,5245,2119,4283, # 2160
+2841, 743,1569,5246,4616,4284, 582,2389,1418,3484,5247,1803,5248, 357,1395,1729, # 2176
+3717,3301,2423,1564,2241,5249,3106,3851,1633,4617,1114,2086,4285,1532,5250, 482, # 2192
+2451,4618,5251,5252,1492, 833,1466,5253,2726,3599,1641,2842,5254,1526,1272,3718, # 2208
+4286,1686,1795, 416,2564,1903,1954,1804,5255,3852,2798,3853,1159,2321,5256,2881, # 2224
+4619,1610,1584,3056,2424,2764, 443,3302,1163,3161,5257,5258,4029,5259,4287,2506, # 2240
+3057,4620,4030,3162,2104,1647,3600,2011,1873,4288,5260,4289, 431,3485,5261, 250, # 2256
+  97,  81,4290,5262,1648,1851,1558, 160, 848,5263, 866, 740,1694,5264,2204,2843, # 2272
+3226,4291,4621,3719,1687, 950,2479, 426, 469,3227,3720,3721,4031,5265,5266,1188, # 2288
+ 424,1996, 861,3601,4292,3854,2205,2694, 168,1235,3602,4293,5267,2087,1674,4622, # 2304
+3374,3303, 220,2565,1009,5268,3855, 670,3010, 332,1208, 717,5269,5270,3603,2452, # 2320
+4032,3375,5271, 513,5272,1209,2882,3376,3163,4623,1080,5273,5274,5275,5276,2534, # 2336
+3722,3604, 815,1587,4033,4034,5277,3605,3486,3856,1254,4624,1328,3058,1390,4035, # 2352
+1741,4036,3857,4037,5278, 236,3858,2453,3304,5279,5280,3723,3859,1273,3860,4625, # 2368
+5281, 308,5282,4626, 245,4627,1852,2480,1307,2583, 430, 715,2137,2454,5283, 270, # 2384
+ 199,2883,4038,5284,3606,2727,1753, 761,1754, 725,1661,1841,4628,3487,3724,5285, # 2400
+5286, 587,  14,3305, 227,2608, 326, 480,2270, 943,2765,3607, 291, 650,1884,5287, # 2416
+1702,1226, 102,1547,  62,3488, 904,4629,3489,1164,4294,5288,5289,1224,1548,2766, # 2432
+ 391, 498,1493,5290,1386,1419,5291,2056,1177,4630, 813, 880,1081,2368, 566,1145, # 2448
+4631,2291,1001,1035,2566,2609,2242, 394,1286,5292,5293,2069,5294,  86,1494,1730, # 2464
+4039, 491,1588, 745, 897,2963, 843,3377,4040,2767,2884,3306,1768, 998,2221,2070, # 2480
+ 397,1827,1195,1970,3725,3011,3378, 284,5295,3861,2507,2138,2120,1904,5296,4041, # 2496
+2151,4042,4295,1036,3490,1905, 114,2567,4296, 209,1527,5297,5298,2964,2844,2635, # 2512
+2390,2728,3164, 812,2568,5299,3307,5300,1559, 737,1885,3726,1210, 885,  28,2695, # 2528
+3608,3862,5301,4297,1004,1780,4632,5302, 346,1982,2222,2696,4633,3863,1742, 797, # 2544
+1642,4043,1934,1072,1384,2152, 896,4044,3308,3727,3228,2885,3609,5303,2569,1959, # 2560
+4634,2455,1786,5304,5305,5306,4045,4298,1005,1308,3728,4299,2729,4635,4636,1528, # 2576
+2610, 161,1178,4300,1983, 987,4637,1101,4301, 631,4046,1157,3229,2425,1343,1241, # 2592
+1016,2243,2570, 372, 877,2344,2508,1160, 555,1935, 911,4047,5307, 466,1170, 169, # 2608
+1051,2921,2697,3729,2481,3012,1182,2012,2571,1251,2636,5308, 992,2345,3491,1540, # 2624
+2730,1201,2071,2406,1997,2482,5309,4638, 528,1923,2191,1503,1874,1570,2369,3379, # 2640
+3309,5310, 557,1073,5311,1828,3492,2088,2271,3165,3059,3107, 767,3108,2799,4639, # 2656
+1006,4302,4640,2346,1267,2179,3730,3230, 778,4048,3231,2731,1597,2667,5312,4641, # 2672
+5313,3493,5314,5315,5316,3310,2698,1433,3311, 131,  95,1504,4049, 723,4303,3166, # 2688
+1842,3610,2768,2192,4050,2028,2105,3731,5317,3013,4051,1218,5318,3380,3232,4052, # 2704
+4304,2584, 248,1634,3864, 912,5319,2845,3732,3060,3865, 654,  53,5320,3014,5321, # 2720
+1688,4642, 777,3494,1032,4053,1425,5322, 191, 820,2121,2846, 971,4643, 931,3233, # 2736
+ 135, 664, 783,3866,1998, 772,2922,1936,4054,3867,4644,2923,3234, 282,2732, 640, # 2752
+1372,3495,1127, 922, 325,3381,5323,5324, 711,2045,5325,5326,4055,2223,2800,1937, # 2768
+4056,3382,2224,2255,3868,2305,5327,4645,3869,1258,3312,4057,3235,2139,2965,4058, # 2784
+4059,5328,2225, 258,3236,4646, 101,1227,5329,3313,1755,5330,1391,3314,5331,2924, # 2800
+2057, 893,5332,5333,5334,1402,4305,2347,5335,5336,3237,3611,5337,5338, 878,1325, # 2816
+1781,2801,4647, 259,1385,2585, 744,1183,2272,4648,5339,4060,2509,5340, 684,1024, # 2832
+4306,5341, 472,3612,3496,1165,3315,4061,4062, 322,2153, 881, 455,1695,1152,1340, # 2848
+ 660, 554,2154,4649,1058,4650,4307, 830,1065,3383,4063,4651,1924,5342,1703,1919, # 2864
+5343, 932,2273, 122,5344,4652, 947, 677,5345,3870,2637, 297,1906,1925,2274,4653, # 2880
+2322,3316,5346,5347,4308,5348,4309,  84,4310, 112, 989,5349, 547,1059,4064, 701, # 2896
+3613,1019,5350,4311,5351,3497, 942, 639, 457,2306,2456, 993,2966, 407, 851, 494, # 2912
+4654,3384, 927,5352,1237,5353,2426,3385, 573,4312, 680, 921,2925,1279,1875, 285, # 2928
+ 790,1448,1984, 719,2168,5354,5355,4655,4065,4066,1649,5356,1541, 563,5357,1077, # 2944
+5358,3386,3061,3498, 511,3015,4067,4068,3733,4069,1268,2572,3387,3238,4656,4657, # 2960
+5359, 535,1048,1276,1189,2926,2029,3167,1438,1373,2847,2967,1134,2013,5360,4313, # 2976
+1238,2586,3109,1259,5361, 700,5362,2968,3168,3734,4314,5363,4315,1146,1876,1907, # 2992
+4658,2611,4070, 781,2427, 132,1589, 203, 147, 273,2802,2407, 898,1787,2155,4071, # 3008
+4072,5364,3871,2803,5365,5366,4659,4660,5367,3239,5368,1635,3872, 965,5369,1805, # 3024
+2699,1516,3614,1121,1082,1329,3317,4073,1449,3873,  65,1128,2848,2927,2769,1590, # 3040
+3874,5370,5371,  12,2668,  45, 976,2587,3169,4661, 517,2535,1013,1037,3240,5372, # 3056
+3875,2849,5373,3876,5374,3499,5375,2612, 614,1999,2323,3877,3110,2733,2638,5376, # 3072
+2588,4316, 599,1269,5377,1811,3735,5378,2700,3111, 759,1060, 489,1806,3388,3318, # 3088
+1358,5379,5380,2391,1387,1215,2639,2256, 490,5381,5382,4317,1759,2392,2348,5383, # 3104
+4662,3878,1908,4074,2640,1807,3241,4663,3500,3319,2770,2349, 874,5384,5385,3501, # 3120
+3736,1859,  91,2928,3737,3062,3879,4664,5386,3170,4075,2669,5387,3502,1202,1403, # 3136
+3880,2969,2536,1517,2510,4665,3503,2511,5388,4666,5389,2701,1886,1495,1731,4076, # 3152
+2370,4667,5390,2030,5391,5392,4077,2702,1216, 237,2589,4318,2324,4078,3881,4668, # 3168
+4669,2703,3615,3504, 445,4670,5393,5394,5395,5396,2771,  61,4079,3738,1823,4080, # 3184
+5397, 687,2046, 935, 925, 405,2670, 703,1096,1860,2734,4671,4081,1877,1367,2704, # 3200
+3389, 918,2106,1782,2483, 334,3320,1611,1093,4672, 564,3171,3505,3739,3390, 945, # 3216
+2641,2058,4673,5398,1926, 872,4319,5399,3506,2705,3112, 349,4320,3740,4082,4674, # 3232
+3882,4321,3741,2156,4083,4675,4676,4322,4677,2408,2047, 782,4084, 400, 251,4323, # 3248
+1624,5400,5401, 277,3742, 299,1265, 476,1191,3883,2122,4324,4325,1109, 205,5402, # 3264
+2590,1000,2157,3616,1861,5403,5404,5405,4678,5406,4679,2573, 107,2484,2158,4085, # 3280
+3507,3172,5407,1533, 541,1301, 158, 753,4326,2886,3617,5408,1696, 370,1088,4327, # 3296
+4680,3618, 579, 327, 440, 162,2244, 269,1938,1374,3508, 968,3063,  56,1396,3113, # 3312
+2107,3321,3391,5409,1927,2159,4681,3016,5410,3619,5411,5412,3743,4682,2485,5413, # 3328
+2804,5414,1650,4683,5415,2613,5416,5417,4086,2671,3392,1149,3393,4087,3884,4088, # 3344
+5418,1076,  49,5419, 951,3242,3322,3323, 450,2850, 920,5420,1812,2805,2371,4328, # 3360
+1909,1138,2372,3885,3509,5421,3243,4684,1910,1147,1518,2428,4685,3886,5422,4686, # 3376
+2393,2614, 260,1796,3244,5423,5424,3887,3324, 708,5425,3620,1704,5426,3621,1351, # 3392
+1618,3394,3017,1887, 944,4329,3395,4330,3064,3396,4331,5427,3744, 422, 413,1714, # 3408
+3325, 500,2059,2350,4332,2486,5428,1344,1911, 954,5429,1668,5430,5431,4089,2409, # 3424
+4333,3622,3888,4334,5432,2307,1318,2512,3114, 133,3115,2887,4687, 629,  31,2851, # 3440
+2706,3889,4688, 850, 949,4689,4090,2970,1732,2089,4335,1496,1853,5433,4091, 620, # 3456
+3245, 981,1242,3745,3397,1619,3746,1643,3326,2140,2457,1971,1719,3510,2169,5434, # 3472
+3246,5435,5436,3398,1829,5437,1277,4690,1565,2048,5438,1636,3623,3116,5439, 869, # 3488
+2852, 655,3890,3891,3117,4092,3018,3892,1310,3624,4691,5440,5441,5442,1733, 558, # 3504
+4692,3747, 335,1549,3065,1756,4336,3748,1946,3511,1830,1291,1192, 470,2735,2108, # 3520
+2806, 913,1054,4093,5443,1027,5444,3066,4094,4693, 982,2672,3399,3173,3512,3247, # 3536
+3248,1947,2807,5445, 571,4694,5446,1831,5447,3625,2591,1523,2429,5448,2090, 984, # 3552
+4695,3749,1960,5449,3750, 852, 923,2808,3513,3751, 969,1519, 999,2049,2325,1705, # 3568
+5450,3118, 615,1662, 151, 597,4095,2410,2326,1049, 275,4696,3752,4337, 568,3753, # 3584
+3626,2487,4338,3754,5451,2430,2275, 409,3249,5452,1566,2888,3514,1002, 769,2853, # 3600
+ 194,2091,3174,3755,2226,3327,4339, 628,1505,5453,5454,1763,2180,3019,4096, 521, # 3616
+1161,2592,1788,2206,2411,4697,4097,1625,4340,4341, 412,  42,3119, 464,5455,2642, # 3632
+4698,3400,1760,1571,2889,3515,2537,1219,2207,3893,2643,2141,2373,4699,4700,3328, # 3648
+1651,3401,3627,5456,5457,3628,2488,3516,5458,3756,5459,5460,2276,2092, 460,5461, # 3664
+4701,5462,3020, 962, 588,3629, 289,3250,2644,1116,  52,5463,3067,1797,5464,5465, # 3680
+5466,1467,5467,1598,1143,3757,4342,1985,1734,1067,4702,1280,3402, 465,4703,1572, # 3696
+ 510,5468,1928,2245,1813,1644,3630,5469,4704,3758,5470,5471,2673,1573,1534,5472, # 3712
+5473, 536,1808,1761,3517,3894,3175,2645,5474,5475,5476,4705,3518,2929,1912,2809, # 3728
+5477,3329,1122, 377,3251,5478, 360,5479,5480,4343,1529, 551,5481,2060,3759,1769, # 3744
+2431,5482,2930,4344,3330,3120,2327,2109,2031,4706,1404, 136,1468,1479, 672,1171, # 3760
+3252,2308, 271,3176,5483,2772,5484,2050, 678,2736, 865,1948,4707,5485,2014,4098, # 3776
+2971,5486,2737,2227,1397,3068,3760,4708,4709,1735,2931,3403,3631,5487,3895, 509, # 3792
+2854,2458,2890,3896,5488,5489,3177,3178,4710,4345,2538,4711,2309,1166,1010, 552, # 3808
+ 681,1888,5490,5491,2972,2973,4099,1287,1596,1862,3179, 358, 453, 736, 175, 478, # 3824
+1117, 905,1167,1097,5492,1854,1530,5493,1706,5494,2181,3519,2292,3761,3520,3632, # 3840
+4346,2093,4347,5495,3404,1193,2489,4348,1458,2193,2208,1863,1889,1421,3331,2932, # 3856
+3069,2182,3521, 595,2123,5496,4100,5497,5498,4349,1707,2646, 223,3762,1359, 751, # 3872
+3121, 183,3522,5499,2810,3021, 419,2374, 633, 704,3897,2394, 241,5500,5501,5502, # 3888
+ 838,3022,3763,2277,2773,2459,3898,1939,2051,4101,1309,3122,2246,1181,5503,1136, # 3904
+2209,3899,2375,1446,4350,2310,4712,5504,5505,4351,1055,2615, 484,3764,5506,4102, # 3920
+ 625,4352,2278,3405,1499,4353,4103,5507,4104,4354,3253,2279,2280,3523,5508,5509, # 3936
+2774, 808,2616,3765,3406,4105,4355,3123,2539, 526,3407,3900,4356, 955,5510,1620, # 3952
+4357,2647,2432,5511,1429,3766,1669,1832, 994, 928,5512,3633,1260,5513,5514,5515, # 3968
+1949,2293, 741,2933,1626,4358,2738,2460, 867,1184, 362,3408,1392,5516,5517,4106, # 3984
+4359,1770,1736,3254,2934,4713,4714,1929,2707,1459,1158,5518,3070,3409,2891,1292, # 4000
+1930,2513,2855,3767,1986,1187,2072,2015,2617,4360,5519,2574,2514,2170,3768,2490, # 4016
+3332,5520,3769,4715,5521,5522, 666,1003,3023,1022,3634,4361,5523,4716,1814,2257, # 4032
+ 574,3901,1603, 295,1535, 705,3902,4362, 283, 858, 417,5524,5525,3255,4717,4718, # 4048
+3071,1220,1890,1046,2281,2461,4107,1393,1599, 689,2575, 388,4363,5526,2491, 802, # 4064
+5527,2811,3903,2061,1405,2258,5528,4719,3904,2110,1052,1345,3256,1585,5529, 809, # 4080
+5530,5531,5532, 575,2739,3524, 956,1552,1469,1144,2328,5533,2329,1560,2462,3635, # 4096
+3257,4108, 616,2210,4364,3180,2183,2294,5534,1833,5535,3525,4720,5536,1319,3770, # 4112
+3771,1211,3636,1023,3258,1293,2812,5537,5538,5539,3905, 607,2311,3906, 762,2892, # 4128
+1439,4365,1360,4721,1485,3072,5540,4722,1038,4366,1450,2062,2648,4367,1379,4723, # 4144
+2593,5541,5542,4368,1352,1414,2330,2935,1172,5543,5544,3907,3908,4724,1798,1451, # 4160
+5545,5546,5547,5548,2936,4109,4110,2492,2351, 411,4111,4112,3637,3333,3124,4725, # 4176
+1561,2674,1452,4113,1375,5549,5550,  47,2974, 316,5551,1406,1591,2937,3181,5552, # 4192
+1025,2142,3125,3182, 354,2740, 884,2228,4369,2412, 508,3772, 726,3638, 996,2433, # 4208
+3639, 729,5553, 392,2194,1453,4114,4726,3773,5554,5555,2463,3640,2618,1675,2813, # 4224
+ 919,2352,2975,2353,1270,4727,4115,  73,5556,5557, 647,5558,3259,2856,2259,1550, # 4240
+1346,3024,5559,1332, 883,3526,5560,5561,5562,5563,3334,2775,5564,1212, 831,1347, # 4256
+4370,4728,2331,3909,1864,3073, 720,3910,4729,4730,3911,5565,4371,5566,5567,4731, # 4272
+5568,5569,1799,4732,3774,2619,4733,3641,1645,2376,4734,5570,2938, 669,2211,2675, # 4288
+2434,5571,2893,5572,5573,1028,3260,5574,4372,2413,5575,2260,1353,5576,5577,4735, # 4304
+3183, 518,5578,4116,5579,4373,1961,5580,2143,4374,5581,5582,3025,2354,2355,3912, # 4320
+ 516,1834,1454,4117,2708,4375,4736,2229,2620,1972,1129,3642,5583,2776,5584,2976, # 4336
+1422, 577,1470,3026,1524,3410,5585,5586, 432,4376,3074,3527,5587,2594,1455,2515, # 4352
+2230,1973,1175,5588,1020,2741,4118,3528,4737,5589,2742,5590,1743,1361,3075,3529, # 4368
+2649,4119,4377,4738,2295, 895, 924,4378,2171, 331,2247,3076, 166,1627,3077,1098, # 4384
+5591,1232,2894,2231,3411,4739, 657, 403,1196,2377, 542,3775,3412,1600,4379,3530, # 4400
+5592,4740,2777,3261, 576, 530,1362,4741,4742,2540,2676,3776,4120,5593, 842,3913, # 4416
+5594,2814,2032,1014,4121, 213,2709,3413, 665, 621,4380,5595,3777,2939,2435,5596, # 4432
+2436,3335,3643,3414,4743,4381,2541,4382,4744,3644,1682,4383,3531,1380,5597, 724, # 4448
+2282, 600,1670,5598,1337,1233,4745,3126,2248,5599,1621,4746,5600, 651,4384,5601, # 4464
+1612,4385,2621,5602,2857,5603,2743,2312,3078,5604, 716,2464,3079, 174,1255,2710, # 4480
+4122,3645, 548,1320,1398, 728,4123,1574,5605,1891,1197,3080,4124,5606,3081,3082, # 4496
+3778,3646,3779, 747,5607, 635,4386,4747,5608,5609,5610,4387,5611,5612,4748,5613, # 4512
+3415,4749,2437, 451,5614,3780,2542,2073,4388,2744,4389,4125,5615,1764,4750,5616, # 4528
+4390, 350,4751,2283,2395,2493,5617,4391,4126,2249,1434,4127, 488,4752, 458,4392, # 4544
+4128,3781, 771,1330,2396,3914,2576,3184,2160,2414,1553,2677,3185,4393,5618,2494, # 4560
+2895,2622,1720,2711,4394,3416,4753,5619,2543,4395,5620,3262,4396,2778,5621,2016, # 4576
+2745,5622,1155,1017,3782,3915,5623,3336,2313, 201,1865,4397,1430,5624,4129,5625, # 4592
+5626,5627,5628,5629,4398,1604,5630, 414,1866, 371,2595,4754,4755,3532,2017,3127, # 4608
+4756,1708, 960,4399, 887, 389,2172,1536,1663,1721,5631,2232,4130,2356,2940,1580, # 4624
+5632,5633,1744,4757,2544,4758,4759,5634,4760,5635,2074,5636,4761,3647,3417,2896, # 4640
+4400,5637,4401,2650,3418,2815, 673,2712,2465, 709,3533,4131,3648,4402,5638,1148, # 4656
+ 502, 634,5639,5640,1204,4762,3649,1575,4763,2623,3783,5641,3784,3128, 948,3263, # 4672
+ 121,1745,3916,1110,5642,4403,3083,2516,3027,4132,3785,1151,1771,3917,1488,4133, # 4688
+1987,5643,2438,3534,5644,5645,2094,5646,4404,3918,1213,1407,2816, 531,2746,2545, # 4704
+3264,1011,1537,4764,2779,4405,3129,1061,5647,3786,3787,1867,2897,5648,2018, 120, # 4720
+4406,4407,2063,3650,3265,2314,3919,2678,3419,1955,4765,4134,5649,3535,1047,2713, # 4736
+1266,5650,1368,4766,2858, 649,3420,3920,2546,2747,1102,2859,2679,5651,5652,2000, # 4752
+5653,1111,3651,2977,5654,2495,3921,3652,2817,1855,3421,3788,5655,5656,3422,2415, # 4768
+2898,3337,3266,3653,5657,2577,5658,3654,2818,4135,1460, 856,5659,3655,5660,2899, # 4784
+2978,5661,2900,3922,5662,4408, 632,2517, 875,3923,1697,3924,2296,5663,5664,4767, # 4800
+3028,1239, 580,4768,4409,5665, 914, 936,2075,1190,4136,1039,2124,5666,5667,5668, # 4816
+5669,3423,1473,5670,1354,4410,3925,4769,2173,3084,4137, 915,3338,4411,4412,3339, # 4832
+1605,1835,5671,2748, 398,3656,4413,3926,4138, 328,1913,2860,4139,3927,1331,4414, # 4848
+3029, 937,4415,5672,3657,4140,4141,3424,2161,4770,3425, 524, 742, 538,3085,1012, # 4864
+5673,5674,3928,2466,5675, 658,1103, 225,3929,5676,5677,4771,5678,4772,5679,3267, # 4880
+1243,5680,4142, 963,2250,4773,5681,2714,3658,3186,5682,5683,2596,2332,5684,4774, # 4896
+5685,5686,5687,3536, 957,3426,2547,2033,1931,2941,2467, 870,2019,3659,1746,2780, # 4912
+2781,2439,2468,5688,3930,5689,3789,3130,3790,3537,3427,3791,5690,1179,3086,5691, # 4928
+3187,2378,4416,3792,2548,3188,3131,2749,4143,5692,3428,1556,2549,2297, 977,2901, # 4944
+2034,4144,1205,3429,5693,1765,3430,3189,2125,1271, 714,1689,4775,3538,5694,2333, # 4960
+3931, 533,4417,3660,2184, 617,5695,2469,3340,3539,2315,5696,5697,3190,5698,5699, # 4976
+3932,1988, 618, 427,2651,3540,3431,5700,5701,1244,1690,5702,2819,4418,4776,5703, # 4992
+3541,4777,5704,2284,1576, 473,3661,4419,3432, 972,5705,3662,5706,3087,5707,5708, # 5008
+4778,4779,5709,3793,4145,4146,5710, 153,4780, 356,5711,1892,2902,4420,2144, 408, # 5024
+ 803,2357,5712,3933,5713,4421,1646,2578,2518,4781,4782,3934,5714,3935,4422,5715, # 5040
+2416,3433, 752,5716,5717,1962,3341,2979,5718, 746,3030,2470,4783,4423,3794, 698, # 5056
+4784,1893,4424,3663,2550,4785,3664,3936,5719,3191,3434,5720,1824,1302,4147,2715, # 5072
+3937,1974,4425,5721,4426,3192, 823,1303,1288,1236,2861,3542,4148,3435, 774,3938, # 5088
+5722,1581,4786,1304,2862,3939,4787,5723,2440,2162,1083,3268,4427,4149,4428, 344, # 5104
+1173, 288,2316, 454,1683,5724,5725,1461,4788,4150,2597,5726,5727,4789, 985, 894, # 5120
+5728,3436,3193,5729,1914,2942,3795,1989,5730,2111,1975,5731,4151,5732,2579,1194, # 5136
+ 425,5733,4790,3194,1245,3796,4429,5734,5735,2863,5736, 636,4791,1856,3940, 760, # 5152
+1800,5737,4430,2212,1508,4792,4152,1894,1684,2298,5738,5739,4793,4431,4432,2213, # 5168
+ 479,5740,5741, 832,5742,4153,2496,5743,2980,2497,3797, 990,3132, 627,1815,2652, # 5184
+4433,1582,4434,2126,2112,3543,4794,5744, 799,4435,3195,5745,4795,2113,1737,3031, # 5200
+1018, 543, 754,4436,3342,1676,4796,4797,4154,4798,1489,5746,3544,5747,2624,2903, # 5216
+4155,5748,5749,2981,5750,5751,5752,5753,3196,4799,4800,2185,1722,5754,3269,3270, # 5232
+1843,3665,1715, 481, 365,1976,1857,5755,5756,1963,2498,4801,5757,2127,3666,3271, # 5248
+ 433,1895,2064,2076,5758, 602,2750,5759,5760,5761,5762,5763,3032,1628,3437,5764, # 5264
+3197,4802,4156,2904,4803,2519,5765,2551,2782,5766,5767,5768,3343,4804,2905,5769, # 5280
+4805,5770,2864,4806,4807,1221,2982,4157,2520,5771,5772,5773,1868,1990,5774,5775, # 5296
+5776,1896,5777,5778,4808,1897,4158, 318,5779,2095,4159,4437,5780,5781, 485,5782, # 5312
+ 938,3941, 553,2680, 116,5783,3942,3667,5784,3545,2681,2783,3438,3344,2820,5785, # 5328
+3668,2943,4160,1747,2944,2983,5786,5787, 207,5788,4809,5789,4810,2521,5790,3033, # 5344
+ 890,3669,3943,5791,1878,3798,3439,5792,2186,2358,3440,1652,5793,5794,5795, 941, # 5360
+2299, 208,3546,4161,2020, 330,4438,3944,2906,2499,3799,4439,4811,5796,5797,5798, # 5376
+)
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/big5prober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/big5prober.py
new file mode 100644
index 0000000..98f9970
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/big5prober.py
@@ -0,0 +1,47 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import Big5DistributionAnalysis
+from .mbcssm import BIG5_SM_MODEL
+
+
+class Big5Prober(MultiByteCharSetProber):
+    def __init__(self):
+        super(Big5Prober, self).__init__()
+        self.coding_sm = CodingStateMachine(BIG5_SM_MODEL)
+        self.distribution_analyzer = Big5DistributionAnalysis()
+        self.reset()
+
+    @property
+    def charset_name(self):
+        return "Big5"
+
+    @property
+    def language(self):
+        return "Chinese"
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/chardistribution.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/chardistribution.py
new file mode 100644
index 0000000..c0395f4
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/chardistribution.py
@@ -0,0 +1,233 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .euctwfreq import (EUCTW_CHAR_TO_FREQ_ORDER, EUCTW_TABLE_SIZE,
+                        EUCTW_TYPICAL_DISTRIBUTION_RATIO)
+from .euckrfreq import (EUCKR_CHAR_TO_FREQ_ORDER, EUCKR_TABLE_SIZE,
+                        EUCKR_TYPICAL_DISTRIBUTION_RATIO)
+from .gb2312freq import (GB2312_CHAR_TO_FREQ_ORDER, GB2312_TABLE_SIZE,
+                         GB2312_TYPICAL_DISTRIBUTION_RATIO)
+from .big5freq import (BIG5_CHAR_TO_FREQ_ORDER, BIG5_TABLE_SIZE,
+                       BIG5_TYPICAL_DISTRIBUTION_RATIO)
+from .jisfreq import (JIS_CHAR_TO_FREQ_ORDER, JIS_TABLE_SIZE,
+                      JIS_TYPICAL_DISTRIBUTION_RATIO)
+
+
+class CharDistributionAnalysis(object):
+    ENOUGH_DATA_THRESHOLD = 1024
+    SURE_YES = 0.99
+    SURE_NO = 0.01
+    MINIMUM_DATA_THRESHOLD = 3
+
+    def __init__(self):
+        # Mapping table to get frequency order from char order (get from
+        # GetOrder())
+        self._char_to_freq_order = None
+        self._table_size = None  # Size of above table
+        # This is a constant value which varies from language to language,
+        # used in calculating confidence.  See
+        # http://www.mozilla.org/projects/intl/UniversalCharsetDetection.html
+        # for further detail.
+        self.typical_distribution_ratio = None
+        self._done = None
+        self._total_chars = None
+        self._freq_chars = None
+        self.reset()
+
+    def reset(self):
+        """reset analyser, clear any state"""
+        # If this flag is set to True, detection is done and conclusion has
+        # been made
+        self._done = False
+        self._total_chars = 0  # Total characters encountered
+        # The number of characters whose frequency order is less than 512
+        self._freq_chars = 0
+
+    def feed(self, char, char_len):
+        """feed a character with known length"""
+        if char_len == 2:
+            # we only care about 2-bytes character in our distribution analysis
+            order = self.get_order(char)
+        else:
+            order = -1
+        if order >= 0:
+            self._total_chars += 1
+            # order is valid
+            if order < self._table_size:
+                if 512 > self._char_to_freq_order[order]:
+                    self._freq_chars += 1
+
+    def get_confidence(self):
+        """return confidence based on existing data"""
+        # if we didn't receive any character in our consideration range,
+        # return negative answer
+        if self._total_chars <= 0 or self._freq_chars <= self.MINIMUM_DATA_THRESHOLD:
+            return self.SURE_NO
+
+        if self._total_chars != self._freq_chars:
+            r = (self._freq_chars / ((self._total_chars - self._freq_chars)
+                 * self.typical_distribution_ratio))
+            if r < self.SURE_YES:
+                return r
+
+        # normalize confidence (we don't want to be 100% sure)
+        return self.SURE_YES
+
+    def got_enough_data(self):
+        # It is not necessary to receive all data to draw conclusion.
+        # For charset detection, certain amount of data is enough
+        return self._total_chars > self.ENOUGH_DATA_THRESHOLD
+
+    def get_order(self, byte_str):
+        # We do not handle characters based on the original encoding string,
+        # but convert this encoding string to a number, here called order.
+        # This allows multiple encodings of a language to share one frequency
+        # table.
+        return -1
+
+
+class EUCTWDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        super(EUCTWDistributionAnalysis, self).__init__()
+        self._char_to_freq_order = EUCTW_CHAR_TO_FREQ_ORDER
+        self._table_size = EUCTW_TABLE_SIZE
+        self.typical_distribution_ratio = EUCTW_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, byte_str):
+        # for euc-TW encoding, we are interested
+        #   first  byte range: 0xc4 -- 0xfe
+        #   second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char = byte_str[0]
+        if first_char >= 0xC4:
+            return 94 * (first_char - 0xC4) + byte_str[1] - 0xA1
+        else:
+            return -1
+
+
+class EUCKRDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        super(EUCKRDistributionAnalysis, self).__init__()
+        self._char_to_freq_order = EUCKR_CHAR_TO_FREQ_ORDER
+        self._table_size = EUCKR_TABLE_SIZE
+        self.typical_distribution_ratio = EUCKR_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, byte_str):
+        # for euc-KR encoding, we are interested
+        #   first  byte range: 0xb0 -- 0xfe
+        #   second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char = byte_str[0]
+        if first_char >= 0xB0:
+            return 94 * (first_char - 0xB0) + byte_str[1] - 0xA1
+        else:
+            return -1
+
+
+class GB2312DistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        super(GB2312DistributionAnalysis, self).__init__()
+        self._char_to_freq_order = GB2312_CHAR_TO_FREQ_ORDER
+        self._table_size = GB2312_TABLE_SIZE
+        self.typical_distribution_ratio = GB2312_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, byte_str):
+        # for GB2312 encoding, we are interested
+        #  first  byte range: 0xb0 -- 0xfe
+        #  second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char, second_char = byte_str[0], byte_str[1]
+        if (first_char >= 0xB0) and (second_char >= 0xA1):
+            return 94 * (first_char - 0xB0) + second_char - 0xA1
+        else:
+            return -1
+
+
+class Big5DistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        super(Big5DistributionAnalysis, self).__init__()
+        self._char_to_freq_order = BIG5_CHAR_TO_FREQ_ORDER
+        self._table_size = BIG5_TABLE_SIZE
+        self.typical_distribution_ratio = BIG5_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, byte_str):
+        # for big5 encoding, we are interested
+        #   first  byte range: 0xa4 -- 0xfe
+        #   second byte range: 0x40 -- 0x7e , 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char, second_char = byte_str[0], byte_str[1]
+        if first_char >= 0xA4:
+            if second_char >= 0xA1:
+                return 157 * (first_char - 0xA4) + second_char - 0xA1 + 63
+            else:
+                return 157 * (first_char - 0xA4) + second_char - 0x40
+        else:
+            return -1
+
+
+class SJISDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        super(SJISDistributionAnalysis, self).__init__()
+        self._char_to_freq_order = JIS_CHAR_TO_FREQ_ORDER
+        self._table_size = JIS_TABLE_SIZE
+        self.typical_distribution_ratio = JIS_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, byte_str):
+        # for sjis encoding, we are interested
+        #   first  byte range: 0x81 -- 0x9f , 0xe0 -- 0xfe
+        #   second byte range: 0x40 -- 0x7e,  0x81 -- oxfe
+        # no validation needed here. State machine has done that
+        first_char, second_char = byte_str[0], byte_str[1]
+        if (first_char >= 0x81) and (first_char <= 0x9F):
+            order = 188 * (first_char - 0x81)
+        elif (first_char >= 0xE0) and (first_char <= 0xEF):
+            order = 188 * (first_char - 0xE0 + 31)
+        else:
+            return -1
+        order = order + second_char - 0x40
+        if second_char > 0x7F:
+            order = -1
+        return order
+
+
+class EUCJPDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        super(EUCJPDistributionAnalysis, self).__init__()
+        self._char_to_freq_order = JIS_CHAR_TO_FREQ_ORDER
+        self._table_size = JIS_TABLE_SIZE
+        self.typical_distribution_ratio = JIS_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, byte_str):
+        # for euc-JP encoding, we are interested
+        #   first  byte range: 0xa0 -- 0xfe
+        #   second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        char = byte_str[0]
+        if char >= 0xA0:
+            return 94 * (char - 0xA1) + byte_str[1] - 0xa1
+        else:
+            return -1
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/charsetgroupprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/charsetgroupprober.py
new file mode 100644
index 0000000..5812cef
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/charsetgroupprober.py
@@ -0,0 +1,107 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .enums import ProbingState
+from .charsetprober import CharSetProber
+
+
+class CharSetGroupProber(CharSetProber):
+    def __init__(self, lang_filter=None):
+        super(CharSetGroupProber, self).__init__(lang_filter=lang_filter)
+        self._active_num = 0
+        self.probers = []
+        self._best_guess_prober = None
+
+    def reset(self):
+        super(CharSetGroupProber, self).reset()
+        self._active_num = 0
+        for prober in self.probers:
+            if prober:
+                prober.reset()
+                prober.active = True
+                self._active_num += 1
+        self._best_guess_prober = None
+
+    @property
+    def charset_name(self):
+        if not self._best_guess_prober:
+            self.get_confidence()
+            if not self._best_guess_prober:
+                return None
+        return self._best_guess_prober.charset_name
+
+    @property
+    def language(self):
+        if not self._best_guess_prober:
+            self.get_confidence()
+            if not self._best_guess_prober:
+                return None
+        return self._best_guess_prober.language
+
+    def feed(self, byte_str):
+        for prober in self.probers:
+            if not prober:
+                continue
+            if not prober.active:
+                continue
+            state = prober.feed(byte_str)
+            if not state:
+                continue
+            if state == ProbingState.FOUND_IT:
+                self._best_guess_prober = prober
+                self._state = ProbingState.FOUND_IT
+                return self.state
+            elif state == ProbingState.NOT_ME:
+                prober.active = False
+                self._active_num -= 1
+                if self._active_num <= 0:
+                    self._state = ProbingState.NOT_ME
+                    return self.state
+        return self.state
+
+    def get_confidence(self):
+        state = self.state
+        if state == ProbingState.FOUND_IT:
+            return 0.99
+        elif state == ProbingState.NOT_ME:
+            return 0.01
+        best_conf = 0.0
+        self._best_guess_prober = None
+        for prober in self.probers:
+            if not prober:
+                continue
+            if not prober.active:
+                self.logger.debug('%s not active', prober.charset_name)
+                continue
+            conf = prober.get_confidence()
+            self.logger.debug('%s %s confidence = %s', prober.charset_name, prober.language, conf)
+            if best_conf < conf:
+                best_conf = conf
+                self._best_guess_prober = prober
+        if not self._best_guess_prober:
+            return 0.0
+        return best_conf
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/charsetprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/charsetprober.py
new file mode 100644
index 0000000..eac4e59
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/charsetprober.py
@@ -0,0 +1,145 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import logging
+import re
+
+from .enums import ProbingState
+
+
+class CharSetProber(object):
+
+    SHORTCUT_THRESHOLD = 0.95
+
+    def __init__(self, lang_filter=None):
+        self._state = None
+        self.lang_filter = lang_filter
+        self.logger = logging.getLogger(__name__)
+
+    def reset(self):
+        self._state = ProbingState.DETECTING
+
+    @property
+    def charset_name(self):
+        return None
+
+    def feed(self, buf):
+        pass
+
+    @property
+    def state(self):
+        return self._state
+
+    def get_confidence(self):
+        return 0.0
+
+    @staticmethod
+    def filter_high_byte_only(buf):
+        buf = re.sub(b'([\x00-\x7F])+', b' ', buf)
+        return buf
+
+    @staticmethod
+    def filter_international_words(buf):
+        """
+        We define three types of bytes:
+        alphabet: english alphabets [a-zA-Z]
+        international: international characters [\x80-\xFF]
+        marker: everything else [^a-zA-Z\x80-\xFF]
+
+        The input buffer can be thought to contain a series of words delimited
+        by markers. This function works to filter all words that contain at
+        least one international character. All contiguous sequences of markers
+        are replaced by a single space ascii character.
+
+        This filter applies to all scripts which do not use English characters.
+        """
+        filtered = bytearray()
+
+        # This regex expression filters out only words that have at-least one
+        # international character. The word may include one marker character at
+        # the end.
+        words = re.findall(b'[a-zA-Z]*[\x80-\xFF]+[a-zA-Z]*[^a-zA-Z\x80-\xFF]?',
+                           buf)
+
+        for word in words:
+            filtered.extend(word[:-1])
+
+            # If the last character in the word is a marker, replace it with a
+            # space as markers shouldn't affect our analysis (they are used
+            # similarly across all languages and may thus have similar
+            # frequencies).
+            last_char = word[-1:]
+            if not last_char.isalpha() and last_char < b'\x80':
+                last_char = b' '
+            filtered.extend(last_char)
+
+        return filtered
+
+    @staticmethod
+    def filter_with_english_letters(buf):
+        """
+        Returns a copy of ``buf`` that retains only the sequences of English
+        alphabet and high byte characters that are not between <> characters.
+        Also retains English alphabet and high byte characters immediately
+        before occurrences of >.
+
+        This filter can be applied to all scripts which contain both English
+        characters and extended ASCII characters, but is currently only used by
+        ``Latin1Prober``.
+        """
+        filtered = bytearray()
+        in_tag = False
+        prev = 0
+
+        for curr in range(len(buf)):
+            # Slice here to get bytes instead of an int with Python 3
+            buf_char = buf[curr:curr + 1]
+            # Check if we're coming out of or entering an HTML tag
+            if buf_char == b'>':
+                in_tag = False
+            elif buf_char == b'<':
+                in_tag = True
+
+            # If current character is not extended-ASCII and not alphabetic...
+            if buf_char < b'\x80' and not buf_char.isalpha():
+                # ...and we're not in a tag
+                if curr > prev and not in_tag:
+                    # Keep everything after last non-extended-ASCII,
+                    # non-alphabetic character
+                    filtered.extend(buf[prev:curr])
+                    # Output a space to delimit stretch we kept
+                    filtered.extend(b' ')
+                prev = curr + 1
+
+        # If we're not in a tag...
+        if not in_tag:
+            # Keep everything after last non-extended-ASCII, non-alphabetic
+            # character
+            filtered.extend(buf[prev:])
+
+        return filtered
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/cli/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/cli/__init__.py
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/cli/__init__.py
@@ -0,0 +1 @@
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/cli/chardetect.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/cli/chardetect.py
new file mode 100644
index 0000000..6d6f93a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/cli/chardetect.py
@@ -0,0 +1,84 @@
+"""
+Script which takes one or more file paths and reports on their detected
+encodings
+
+Example::
+
+    % chardetect somefile someotherfile
+    somefile: windows-1252 with confidence 0.5
+    someotherfile: ascii with confidence 1.0
+
+If no paths are provided, it takes its input from stdin.
+
+"""
+
+from __future__ import absolute_import, print_function, unicode_literals
+
+import argparse
+import sys
+
+from pip._vendor.chardet import __version__
+from pip._vendor.chardet.compat import PY2
+from pip._vendor.chardet.universaldetector import UniversalDetector
+
+
+def description_of(lines, name='stdin'):
+    """
+    Return a string describing the probable encoding of a file or
+    list of strings.
+
+    :param lines: The lines to get the encoding of.
+    :type lines: Iterable of bytes
+    :param name: Name of file or collection of lines
+    :type name: str
+    """
+    u = UniversalDetector()
+    for line in lines:
+        line = bytearray(line)
+        u.feed(line)
+        # shortcut out of the loop to save reading further - particularly useful if we read a BOM.
+        if u.done:
+            break
+    u.close()
+    result = u.result
+    if PY2:
+        name = name.decode(sys.getfilesystemencoding(), 'ignore')
+    if result['encoding']:
+        return '{}: {} with confidence {}'.format(name, result['encoding'],
+                                                     result['confidence'])
+    else:
+        return '{}: no result'.format(name)
+
+
+def main(argv=None):
+    """
+    Handles command line arguments and gets things started.
+
+    :param argv: List of arguments, as if specified on the command-line.
+                 If None, ``sys.argv[1:]`` is used instead.
+    :type argv: list of str
+    """
+    # Get command line arguments
+    parser = argparse.ArgumentParser(
+        description="Takes one or more file paths and reports their detected \
+                     encodings")
+    parser.add_argument('input',
+                        help='File whose encoding we would like to determine. \
+                              (default: stdin)',
+                        type=argparse.FileType('rb'), nargs='*',
+                        default=[sys.stdin if PY2 else sys.stdin.buffer])
+    parser.add_argument('--version', action='version',
+                        version='%(prog)s {}'.format(__version__))
+    args = parser.parse_args(argv)
+
+    for f in args.input:
+        if f.isatty():
+            print("You are running chardetect interactively. Press " +
+                  "CTRL-D twice at the start of a blank line to signal the " +
+                  "end of your input. If you want help, run chardetect " +
+                  "--help\n", file=sys.stderr)
+        print(description_of(f, f.name))
+
+
+if __name__ == '__main__':
+    main()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/codingstatemachine.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/codingstatemachine.py
new file mode 100644
index 0000000..68fba44
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/codingstatemachine.py
@@ -0,0 +1,88 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import logging
+
+from .enums import MachineState
+
+
+class CodingStateMachine(object):
+    """
+    A state machine to verify a byte sequence for a particular encoding. For
+    each byte the detector receives, it will feed that byte to every active
+    state machine available, one byte at a time. The state machine changes its
+    state based on its previous state and the byte it receives. There are 3
+    states in a state machine that are of interest to an auto-detector:
+
+    START state: This is the state to start with, or a legal byte sequence
+                 (i.e. a valid code point) for character has been identified.
+
+    ME state:  This indicates that the state machine identified a byte sequence
+               that is specific to the charset it is designed for and that
+               there is no other possible encoding which can contain this byte
+               sequence. This will to lead to an immediate positive answer for
+               the detector.
+
+    ERROR state: This indicates the state machine identified an illegal byte
+                 sequence for that encoding. This will lead to an immediate
+                 negative answer for this encoding. Detector will exclude this
+                 encoding from consideration from here on.
+    """
+    def __init__(self, sm):
+        self._model = sm
+        self._curr_byte_pos = 0
+        self._curr_char_len = 0
+        self._curr_state = None
+        self.logger = logging.getLogger(__name__)
+        self.reset()
+
+    def reset(self):
+        self._curr_state = MachineState.START
+
+    def next_state(self, c):
+        # for each byte we get its class
+        # if it is first byte, we also get byte length
+        byte_class = self._model['class_table'][c]
+        if self._curr_state == MachineState.START:
+            self._curr_byte_pos = 0
+            self._curr_char_len = self._model['char_len_table'][byte_class]
+        # from byte's class and state_table, we get its next state
+        curr_state = (self._curr_state * self._model['class_factor']
+                      + byte_class)
+        self._curr_state = self._model['state_table'][curr_state]
+        self._curr_byte_pos += 1
+        return self._curr_state
+
+    def get_current_charlen(self):
+        return self._curr_char_len
+
+    def get_coding_state_machine(self):
+        return self._model['name']
+
+    @property
+    def language(self):
+        return self._model['language']
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/compat.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/compat.py
new file mode 100644
index 0000000..8941572
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/compat.py
@@ -0,0 +1,36 @@
+######################## BEGIN LICENSE BLOCK ########################
+# Contributor(s):
+#   Dan Blanchard
+#   Ian Cordasco
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+
+
+if sys.version_info < (3, 0):
+    PY2 = True
+    PY3 = False
+    string_types = (str, unicode)
+    text_type = unicode
+    iteritems = dict.iteritems
+else:
+    PY2 = False
+    PY3 = True
+    string_types = (bytes, str)
+    text_type = str
+    iteritems = dict.items
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/cp949prober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/cp949prober.py
new file mode 100644
index 0000000..efd793a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/cp949prober.py
@@ -0,0 +1,49 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .chardistribution import EUCKRDistributionAnalysis
+from .codingstatemachine import CodingStateMachine
+from .mbcharsetprober import MultiByteCharSetProber
+from .mbcssm import CP949_SM_MODEL
+
+
+class CP949Prober(MultiByteCharSetProber):
+    def __init__(self):
+        super(CP949Prober, self).__init__()
+        self.coding_sm = CodingStateMachine(CP949_SM_MODEL)
+        # NOTE: CP949 is a superset of EUC-KR, so the distribution should be
+        #       not different.
+        self.distribution_analyzer = EUCKRDistributionAnalysis()
+        self.reset()
+
+    @property
+    def charset_name(self):
+        return "CP949"
+
+    @property
+    def language(self):
+        return "Korean"
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/enums.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/enums.py
new file mode 100644
index 0000000..0451207
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/enums.py
@@ -0,0 +1,76 @@
+"""
+All of the Enums that are used throughout the chardet package.
+
+:author: Dan Blanchard (dan.blanchard@gmail.com)
+"""
+
+
+class InputState(object):
+    """
+    This enum represents the different states a universal detector can be in.
+    """
+    PURE_ASCII = 0
+    ESC_ASCII = 1
+    HIGH_BYTE = 2
+
+
+class LanguageFilter(object):
+    """
+    This enum represents the different language filters we can apply to a
+    ``UniversalDetector``.
+    """
+    CHINESE_SIMPLIFIED = 0x01
+    CHINESE_TRADITIONAL = 0x02
+    JAPANESE = 0x04
+    KOREAN = 0x08
+    NON_CJK = 0x10
+    ALL = 0x1F
+    CHINESE = CHINESE_SIMPLIFIED | CHINESE_TRADITIONAL
+    CJK = CHINESE | JAPANESE | KOREAN
+
+
+class ProbingState(object):
+    """
+    This enum represents the different states a prober can be in.
+    """
+    DETECTING = 0
+    FOUND_IT = 1
+    NOT_ME = 2
+
+
+class MachineState(object):
+    """
+    This enum represents the different states a state machine can be in.
+    """
+    START = 0
+    ERROR = 1
+    ITS_ME = 2
+
+
+class SequenceLikelihood(object):
+    """
+    This enum represents the likelihood of a character following the previous one.
+    """
+    NEGATIVE = 0
+    UNLIKELY = 1
+    LIKELY = 2
+    POSITIVE = 3
+
+    @classmethod
+    def get_num_categories(cls):
+        """:returns: The number of likelihood categories in the enum."""
+        return 4
+
+
+class CharacterCategory(object):
+    """
+    This enum represents the different categories language models for
+    ``SingleByteCharsetProber`` put characters into.
+
+    Anything less than CONTROL is considered a letter.
+    """
+    UNDEFINED = 255
+    LINE_BREAK = 254
+    SYMBOL = 253
+    DIGIT = 252
+    CONTROL = 251
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/escprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/escprober.py
new file mode 100644
index 0000000..c70493f
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/escprober.py
@@ -0,0 +1,101 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetprober import CharSetProber
+from .codingstatemachine import CodingStateMachine
+from .enums import LanguageFilter, ProbingState, MachineState
+from .escsm import (HZ_SM_MODEL, ISO2022CN_SM_MODEL, ISO2022JP_SM_MODEL,
+                    ISO2022KR_SM_MODEL)
+
+
+class EscCharSetProber(CharSetProber):
+    """
+    This CharSetProber uses a "code scheme" approach for detecting encodings,
+    whereby easily recognizable escape or shift sequences are relied on to
+    identify these encodings.
+    """
+
+    def __init__(self, lang_filter=None):
+        super(EscCharSetProber, self).__init__(lang_filter=lang_filter)
+        self.coding_sm = []
+        if self.lang_filter & LanguageFilter.CHINESE_SIMPLIFIED:
+            self.coding_sm.append(CodingStateMachine(HZ_SM_MODEL))
+            self.coding_sm.append(CodingStateMachine(ISO2022CN_SM_MODEL))
+        if self.lang_filter & LanguageFilter.JAPANESE:
+            self.coding_sm.append(CodingStateMachine(ISO2022JP_SM_MODEL))
+        if self.lang_filter & LanguageFilter.KOREAN:
+            self.coding_sm.append(CodingStateMachine(ISO2022KR_SM_MODEL))
+        self.active_sm_count = None
+        self._detected_charset = None
+        self._detected_language = None
+        self._state = None
+        self.reset()
+
+    def reset(self):
+        super(EscCharSetProber, self).reset()
+        for coding_sm in self.coding_sm:
+            if not coding_sm:
+                continue
+            coding_sm.active = True
+            coding_sm.reset()
+        self.active_sm_count = len(self.coding_sm)
+        self._detected_charset = None
+        self._detected_language = None
+
+    @property
+    def charset_name(self):
+        return self._detected_charset
+
+    @property
+    def language(self):
+        return self._detected_language
+
+    def get_confidence(self):
+        if self._detected_charset:
+            return 0.99
+        else:
+            return 0.00
+
+    def feed(self, byte_str):
+        for c in byte_str:
+            for coding_sm in self.coding_sm:
+                if not coding_sm or not coding_sm.active:
+                    continue
+                coding_state = coding_sm.next_state(c)
+                if coding_state == MachineState.ERROR:
+                    coding_sm.active = False
+                    self.active_sm_count -= 1
+                    if self.active_sm_count <= 0:
+                        self._state = ProbingState.NOT_ME
+                        return self.state
+                elif coding_state == MachineState.ITS_ME:
+                    self._state = ProbingState.FOUND_IT
+                    self._detected_charset = coding_sm.get_coding_state_machine()
+                    self._detected_language = coding_sm.language
+                    return self.state
+
+        return self.state
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/escsm.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/escsm.py
new file mode 100644
index 0000000..0069523
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/escsm.py
@@ -0,0 +1,246 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .enums import MachineState
+
+HZ_CLS = (
+1,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,0,0,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,0,0,0,0,  # 20 - 27
+0,0,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+0,0,0,0,0,0,0,0,  # 40 - 47
+0,0,0,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,4,0,5,2,0,  # 78 - 7f
+1,1,1,1,1,1,1,1,  # 80 - 87
+1,1,1,1,1,1,1,1,  # 88 - 8f
+1,1,1,1,1,1,1,1,  # 90 - 97
+1,1,1,1,1,1,1,1,  # 98 - 9f
+1,1,1,1,1,1,1,1,  # a0 - a7
+1,1,1,1,1,1,1,1,  # a8 - af
+1,1,1,1,1,1,1,1,  # b0 - b7
+1,1,1,1,1,1,1,1,  # b8 - bf
+1,1,1,1,1,1,1,1,  # c0 - c7
+1,1,1,1,1,1,1,1,  # c8 - cf
+1,1,1,1,1,1,1,1,  # d0 - d7
+1,1,1,1,1,1,1,1,  # d8 - df
+1,1,1,1,1,1,1,1,  # e0 - e7
+1,1,1,1,1,1,1,1,  # e8 - ef
+1,1,1,1,1,1,1,1,  # f0 - f7
+1,1,1,1,1,1,1,1,  # f8 - ff
+)
+
+HZ_ST = (
+MachineState.START,MachineState.ERROR,     3,MachineState.START,MachineState.START,MachineState.START,MachineState.ERROR,MachineState.ERROR,# 00-07
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,# 08-0f
+MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START,     4,MachineState.ERROR,# 10-17
+     5,MachineState.ERROR,     6,MachineState.ERROR,     5,     5,     4,MachineState.ERROR,# 18-1f
+     4,MachineState.ERROR,     4,     4,     4,MachineState.ERROR,     4,MachineState.ERROR,# 20-27
+     4,MachineState.ITS_ME,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,# 28-2f
+)
+
+HZ_CHAR_LEN_TABLE = (0, 0, 0, 0, 0, 0)
+
+HZ_SM_MODEL = {'class_table': HZ_CLS,
+               'class_factor': 6,
+               'state_table': HZ_ST,
+               'char_len_table': HZ_CHAR_LEN_TABLE,
+               'name': "HZ-GB-2312",
+               'language': 'Chinese'}
+
+ISO2022CN_CLS = (
+2,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,0,0,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,0,0,0,0,  # 20 - 27
+0,3,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+0,0,0,4,0,0,0,0,  # 40 - 47
+0,0,0,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,0,0,0,0,0,  # 78 - 7f
+2,2,2,2,2,2,2,2,  # 80 - 87
+2,2,2,2,2,2,2,2,  # 88 - 8f
+2,2,2,2,2,2,2,2,  # 90 - 97
+2,2,2,2,2,2,2,2,  # 98 - 9f
+2,2,2,2,2,2,2,2,  # a0 - a7
+2,2,2,2,2,2,2,2,  # a8 - af
+2,2,2,2,2,2,2,2,  # b0 - b7
+2,2,2,2,2,2,2,2,  # b8 - bf
+2,2,2,2,2,2,2,2,  # c0 - c7
+2,2,2,2,2,2,2,2,  # c8 - cf
+2,2,2,2,2,2,2,2,  # d0 - d7
+2,2,2,2,2,2,2,2,  # d8 - df
+2,2,2,2,2,2,2,2,  # e0 - e7
+2,2,2,2,2,2,2,2,  # e8 - ef
+2,2,2,2,2,2,2,2,  # f0 - f7
+2,2,2,2,2,2,2,2,  # f8 - ff
+)
+
+ISO2022CN_ST = (
+MachineState.START,     3,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,# 00-07
+MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,# 08-0f
+MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,# 10-17
+MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     4,MachineState.ERROR,# 18-1f
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,# 20-27
+     5,     6,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,# 28-2f
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,# 30-37
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ERROR,MachineState.START,# 38-3f
+)
+
+ISO2022CN_CHAR_LEN_TABLE = (0, 0, 0, 0, 0, 0, 0, 0, 0)
+
+ISO2022CN_SM_MODEL = {'class_table': ISO2022CN_CLS,
+                      'class_factor': 9,
+                      'state_table': ISO2022CN_ST,
+                      'char_len_table': ISO2022CN_CHAR_LEN_TABLE,
+                      'name': "ISO-2022-CN",
+                      'language': 'Chinese'}
+
+ISO2022JP_CLS = (
+2,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,2,2,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,7,0,0,0,  # 20 - 27
+3,0,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+6,0,4,0,8,0,0,0,  # 40 - 47
+0,9,5,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,0,0,0,0,0,  # 78 - 7f
+2,2,2,2,2,2,2,2,  # 80 - 87
+2,2,2,2,2,2,2,2,  # 88 - 8f
+2,2,2,2,2,2,2,2,  # 90 - 97
+2,2,2,2,2,2,2,2,  # 98 - 9f
+2,2,2,2,2,2,2,2,  # a0 - a7
+2,2,2,2,2,2,2,2,  # a8 - af
+2,2,2,2,2,2,2,2,  # b0 - b7
+2,2,2,2,2,2,2,2,  # b8 - bf
+2,2,2,2,2,2,2,2,  # c0 - c7
+2,2,2,2,2,2,2,2,  # c8 - cf
+2,2,2,2,2,2,2,2,  # d0 - d7
+2,2,2,2,2,2,2,2,  # d8 - df
+2,2,2,2,2,2,2,2,  # e0 - e7
+2,2,2,2,2,2,2,2,  # e8 - ef
+2,2,2,2,2,2,2,2,  # f0 - f7
+2,2,2,2,2,2,2,2,  # f8 - ff
+)
+
+ISO2022JP_ST = (
+MachineState.START,     3,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,# 00-07
+MachineState.START,MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,# 08-0f
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,# 10-17
+MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,# 18-1f
+MachineState.ERROR,     5,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     4,MachineState.ERROR,MachineState.ERROR,# 20-27
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     6,MachineState.ITS_ME,MachineState.ERROR,MachineState.ITS_ME,MachineState.ERROR,# 28-2f
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,# 30-37
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,# 38-3f
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ERROR,MachineState.START,MachineState.START,# 40-47
+)
+
+ISO2022JP_CHAR_LEN_TABLE = (0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+
+ISO2022JP_SM_MODEL = {'class_table': ISO2022JP_CLS,
+                      'class_factor': 10,
+                      'state_table': ISO2022JP_ST,
+                      'char_len_table': ISO2022JP_CHAR_LEN_TABLE,
+                      'name': "ISO-2022-JP",
+                      'language': 'Japanese'}
+
+ISO2022KR_CLS = (
+2,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,0,0,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,3,0,0,0,  # 20 - 27
+0,4,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+0,0,0,5,0,0,0,0,  # 40 - 47
+0,0,0,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,0,0,0,0,0,  # 78 - 7f
+2,2,2,2,2,2,2,2,  # 80 - 87
+2,2,2,2,2,2,2,2,  # 88 - 8f
+2,2,2,2,2,2,2,2,  # 90 - 97
+2,2,2,2,2,2,2,2,  # 98 - 9f
+2,2,2,2,2,2,2,2,  # a0 - a7
+2,2,2,2,2,2,2,2,  # a8 - af
+2,2,2,2,2,2,2,2,  # b0 - b7
+2,2,2,2,2,2,2,2,  # b8 - bf
+2,2,2,2,2,2,2,2,  # c0 - c7
+2,2,2,2,2,2,2,2,  # c8 - cf
+2,2,2,2,2,2,2,2,  # d0 - d7
+2,2,2,2,2,2,2,2,  # d8 - df
+2,2,2,2,2,2,2,2,  # e0 - e7
+2,2,2,2,2,2,2,2,  # e8 - ef
+2,2,2,2,2,2,2,2,  # f0 - f7
+2,2,2,2,2,2,2,2,  # f8 - ff
+)
+
+ISO2022KR_ST = (
+MachineState.START,     3,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.ERROR,MachineState.ERROR,# 00-07
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,# 08-0f
+MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     4,MachineState.ERROR,MachineState.ERROR,# 10-17
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     5,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,# 18-1f
+MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.START,MachineState.START,MachineState.START,MachineState.START,# 20-27
+)
+
+ISO2022KR_CHAR_LEN_TABLE = (0, 0, 0, 0, 0, 0)
+
+ISO2022KR_SM_MODEL = {'class_table': ISO2022KR_CLS,
+                      'class_factor': 6,
+                      'state_table': ISO2022KR_ST,
+                      'char_len_table': ISO2022KR_CHAR_LEN_TABLE,
+                      'name': "ISO-2022-KR",
+                      'language': 'Korean'}
+
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/eucjpprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/eucjpprober.py
new file mode 100644
index 0000000..20ce8f7
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/eucjpprober.py
@@ -0,0 +1,92 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .enums import ProbingState, MachineState
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCJPDistributionAnalysis
+from .jpcntx import EUCJPContextAnalysis
+from .mbcssm import EUCJP_SM_MODEL
+
+
+class EUCJPProber(MultiByteCharSetProber):
+    def __init__(self):
+        super(EUCJPProber, self).__init__()
+        self.coding_sm = CodingStateMachine(EUCJP_SM_MODEL)
+        self.distribution_analyzer = EUCJPDistributionAnalysis()
+        self.context_analyzer = EUCJPContextAnalysis()
+        self.reset()
+
+    def reset(self):
+        super(EUCJPProber, self).reset()
+        self.context_analyzer.reset()
+
+    @property
+    def charset_name(self):
+        return "EUC-JP"
+
+    @property
+    def language(self):
+        return "Japanese"
+
+    def feed(self, byte_str):
+        for i in range(len(byte_str)):
+            # PY3K: byte_str is a byte array, so byte_str[i] is an int, not a byte
+            coding_state = self.coding_sm.next_state(byte_str[i])
+            if coding_state == MachineState.ERROR:
+                self.logger.debug('%s %s prober hit error at byte %s',
+                                  self.charset_name, self.language, i)
+                self._state = ProbingState.NOT_ME
+                break
+            elif coding_state == MachineState.ITS_ME:
+                self._state = ProbingState.FOUND_IT
+                break
+            elif coding_state == MachineState.START:
+                char_len = self.coding_sm.get_current_charlen()
+                if i == 0:
+                    self._last_char[1] = byte_str[0]
+                    self.context_analyzer.feed(self._last_char, char_len)
+                    self.distribution_analyzer.feed(self._last_char, char_len)
+                else:
+                    self.context_analyzer.feed(byte_str[i - 1:i + 1],
+                                                char_len)
+                    self.distribution_analyzer.feed(byte_str[i - 1:i + 1],
+                                                     char_len)
+
+        self._last_char[0] = byte_str[-1]
+
+        if self.state == ProbingState.DETECTING:
+            if (self.context_analyzer.got_enough_data() and
+               (self.get_confidence() > self.SHORTCUT_THRESHOLD)):
+                self._state = ProbingState.FOUND_IT
+
+        return self.state
+
+    def get_confidence(self):
+        context_conf = self.context_analyzer.get_confidence()
+        distrib_conf = self.distribution_analyzer.get_confidence()
+        return max(context_conf, distrib_conf)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euckrfreq.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euckrfreq.py
new file mode 100644
index 0000000..b68078c
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euckrfreq.py
@@ -0,0 +1,195 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# Sampling from about 20M text materials include literature and computer technology
+
+# 128  --> 0.79
+# 256  --> 0.92
+# 512  --> 0.986
+# 1024 --> 0.99944
+# 2048 --> 0.99999
+#
+# Idea Distribution Ratio = 0.98653 / (1-0.98653) = 73.24
+# Random Distribution Ration = 512 / (2350-512) = 0.279.
+#
+# Typical Distribution Ratio
+
+EUCKR_TYPICAL_DISTRIBUTION_RATIO = 6.0
+
+EUCKR_TABLE_SIZE = 2352
+
+# Char to FreqOrder table ,
+EUCKR_CHAR_TO_FREQ_ORDER = (
+  13, 130, 120,1396, 481,1719,1720, 328, 609, 212,1721, 707, 400, 299,1722,  87,
+1397,1723, 104, 536,1117,1203,1724,1267, 685,1268, 508,1725,1726,1727,1728,1398,
+1399,1729,1730,1731, 141, 621, 326,1057, 368,1732, 267, 488,  20,1733,1269,1734,
+ 945,1400,1735,  47, 904,1270,1736,1737, 773, 248,1738, 409, 313, 786, 429,1739,
+ 116, 987, 813,1401, 683,  75,1204, 145,1740,1741,1742,1743,  16, 847, 667, 622,
+ 708,1744,1745,1746, 966, 787, 304, 129,1747,  60, 820, 123, 676,1748,1749,1750,
+1751, 617,1752, 626,1753,1754,1755,1756, 653,1757,1758,1759,1760,1761,1762, 856,
+ 344,1763,1764,1765,1766,  89, 401, 418, 806, 905, 848,1767,1768,1769, 946,1205,
+ 709,1770,1118,1771, 241,1772,1773,1774,1271,1775, 569,1776, 999,1777,1778,1779,
+1780, 337, 751,1058,  28, 628, 254,1781, 177, 906, 270, 349, 891,1079,1782,  19,
+1783, 379,1784, 315,1785, 629, 754,1402, 559,1786, 636, 203,1206,1787, 710, 567,
+1788, 935, 814,1789,1790,1207, 766, 528,1791,1792,1208,1793,1794,1795,1796,1797,
+1403,1798,1799, 533,1059,1404,1405,1156,1406, 936, 884,1080,1800, 351,1801,1802,
+1803,1804,1805, 801,1806,1807,1808,1119,1809,1157, 714, 474,1407,1810, 298, 899,
+ 885,1811,1120, 802,1158,1812, 892,1813,1814,1408, 659,1815,1816,1121,1817,1818,
+1819,1820,1821,1822, 319,1823, 594, 545,1824, 815, 937,1209,1825,1826, 573,1409,
+1022,1827,1210,1828,1829,1830,1831,1832,1833, 556, 722, 807,1122,1060,1834, 697,
+1835, 900, 557, 715,1836,1410, 540,1411, 752,1159, 294, 597,1211, 976, 803, 770,
+1412,1837,1838,  39, 794,1413, 358,1839, 371, 925,1840, 453, 661, 788, 531, 723,
+ 544,1023,1081, 869,  91,1841, 392, 430, 790, 602,1414, 677,1082, 457,1415,1416,
+1842,1843, 475, 327,1024,1417, 795, 121,1844, 733, 403,1418,1845,1846,1847, 300,
+ 119, 711,1212, 627,1848,1272, 207,1849,1850, 796,1213, 382,1851, 519,1852,1083,
+ 893,1853,1854,1855, 367, 809, 487, 671,1856, 663,1857,1858, 956, 471, 306, 857,
+1859,1860,1160,1084,1861,1862,1863,1864,1865,1061,1866,1867,1868,1869,1870,1871,
+ 282,  96, 574,1872, 502,1085,1873,1214,1874, 907,1875,1876, 827, 977,1419,1420,
+1421, 268,1877,1422,1878,1879,1880, 308,1881,   2, 537,1882,1883,1215,1884,1885,
+ 127, 791,1886,1273,1423,1887,  34, 336, 404, 643,1888, 571, 654, 894, 840,1889,
+   0, 886,1274, 122, 575, 260, 908, 938,1890,1275, 410, 316,1891,1892, 100,1893,
+1894,1123,  48,1161,1124,1025,1895, 633, 901,1276,1896,1897, 115, 816,1898, 317,
+1899, 694,1900, 909, 734,1424, 572, 866,1425, 691,  85, 524,1010, 543, 394, 841,
+1901,1902,1903,1026,1904,1905,1906,1907,1908,1909,  30, 451, 651, 988, 310,1910,
+1911,1426, 810,1216,  93,1912,1913,1277,1217,1914, 858, 759,  45,  58, 181, 610,
+ 269,1915,1916, 131,1062, 551, 443,1000, 821,1427, 957, 895,1086,1917,1918, 375,
+1919, 359,1920, 687,1921, 822,1922, 293,1923,1924,  40, 662, 118, 692,  29, 939,
+ 887, 640, 482, 174,1925,  69,1162, 728,1428, 910,1926,1278,1218,1279, 386, 870,
+ 217, 854,1163, 823,1927,1928,1929,1930, 834,1931,  78,1932, 859,1933,1063,1934,
+1935,1936,1937, 438,1164, 208, 595,1938,1939,1940,1941,1219,1125,1942, 280, 888,
+1429,1430,1220,1431,1943,1944,1945,1946,1947,1280, 150, 510,1432,1948,1949,1950,
+1951,1952,1953,1954,1011,1087,1955,1433,1043,1956, 881,1957, 614, 958,1064,1065,
+1221,1958, 638,1001, 860, 967, 896,1434, 989, 492, 553,1281,1165,1959,1282,1002,
+1283,1222,1960,1961,1962,1963,  36, 383, 228, 753, 247, 454,1964, 876, 678,1965,
+1966,1284, 126, 464, 490, 835, 136, 672, 529, 940,1088,1435, 473,1967,1968, 467,
+  50, 390, 227, 587, 279, 378, 598, 792, 968, 240, 151, 160, 849, 882,1126,1285,
+ 639,1044, 133, 140, 288, 360, 811, 563,1027, 561, 142, 523,1969,1970,1971,   7,
+ 103, 296, 439, 407, 506, 634, 990,1972,1973,1974,1975, 645,1976,1977,1978,1979,
+1980,1981, 236,1982,1436,1983,1984,1089, 192, 828, 618, 518,1166, 333,1127,1985,
+ 818,1223,1986,1987,1988,1989,1990,1991,1992,1993, 342,1128,1286, 746, 842,1994,
+1995, 560, 223,1287,  98,   8, 189, 650, 978,1288,1996,1437,1997,  17, 345, 250,
+ 423, 277, 234, 512, 226,  97, 289,  42, 167,1998, 201,1999,2000, 843, 836, 824,
+ 532, 338, 783,1090, 182, 576, 436,1438,1439, 527, 500,2001, 947, 889,2002,2003,
+2004,2005, 262, 600, 314, 447,2006, 547,2007, 693, 738,1129,2008,  71,1440, 745,
+ 619, 688,2009, 829,2010,2011, 147,2012,  33, 948,2013,2014,  74, 224,2015,  61,
+ 191, 918, 399, 637,2016,1028,1130, 257, 902,2017,2018,2019,2020,2021,2022,2023,
+2024,2025,2026, 837,2027,2028,2029,2030, 179, 874, 591,  52, 724, 246,2031,2032,
+2033,2034,1167, 969,2035,1289, 630, 605, 911,1091,1168,2036,2037,2038,1441, 912,
+2039, 623,2040,2041, 253,1169,1290,2042,1442, 146, 620, 611, 577, 433,2043,1224,
+ 719,1170, 959, 440, 437, 534,  84, 388, 480,1131, 159, 220, 198, 679,2044,1012,
+ 819,1066,1443, 113,1225, 194, 318,1003,1029,2045,2046,2047,2048,1067,2049,2050,
+2051,2052,2053,  59, 913, 112,2054, 632,2055, 455, 144, 739,1291,2056, 273, 681,
+ 499,2057, 448,2058,2059, 760,2060,2061, 970, 384, 169, 245,1132,2062,2063, 414,
+1444,2064,2065,  41, 235,2066, 157, 252, 877, 568, 919, 789, 580,2067, 725,2068,
+2069,1292,2070,2071,1445,2072,1446,2073,2074,  55, 588,  66,1447, 271,1092,2075,
+1226,2076, 960,1013, 372,2077,2078,2079,2080,2081,1293,2082,2083,2084,2085, 850,
+2086,2087,2088,2089,2090, 186,2091,1068, 180,2092,2093,2094, 109,1227, 522, 606,
+2095, 867,1448,1093, 991,1171, 926, 353,1133,2096, 581,2097,2098,2099,1294,1449,
+1450,2100, 596,1172,1014,1228,2101,1451,1295,1173,1229,2102,2103,1296,1134,1452,
+ 949,1135,2104,2105,1094,1453,1454,1455,2106,1095,2107,2108,2109,2110,2111,2112,
+2113,2114,2115,2116,2117, 804,2118,2119,1230,1231, 805,1456, 405,1136,2120,2121,
+2122,2123,2124, 720, 701,1297, 992,1457, 927,1004,2125,2126,2127,2128,2129,2130,
+  22, 417,2131, 303,2132, 385,2133, 971, 520, 513,2134,1174,  73,1096, 231, 274,
+ 962,1458, 673,2135,1459,2136, 152,1137,2137,2138,2139,2140,1005,1138,1460,1139,
+2141,2142,2143,2144,  11, 374, 844,2145, 154,1232,  46,1461,2146, 838, 830, 721,
+1233, 106,2147,  90, 428, 462, 578, 566,1175, 352,2148,2149, 538,1234, 124,1298,
+2150,1462, 761, 565,2151, 686,2152, 649,2153,  72, 173,2154, 460, 415,2155,1463,
+2156,1235, 305,2157,2158,2159,2160,2161,2162, 579,2163,2164,2165,2166,2167, 747,
+2168,2169,2170,2171,1464, 669,2172,2173,2174,2175,2176,1465,2177,  23, 530, 285,
+2178, 335, 729,2179, 397,2180,2181,2182,1030,2183,2184, 698,2185,2186, 325,2187,
+2188, 369,2189, 799,1097,1015, 348,2190,1069, 680,2191, 851,1466,2192,2193,  10,
+2194, 613, 424,2195, 979, 108, 449, 589,  27, 172,  81,1031,  80, 774, 281, 350,
+1032, 525, 301, 582,1176,2196, 674,1045,2197,2198,1467, 730, 762,2199,2200,2201,
+2202,1468,2203, 993,2204,2205, 266,1070, 963,1140,2206,2207,2208, 664,1098, 972,
+2209,2210,2211,1177,1469,1470, 871,2212,2213,2214,2215,2216,1471,2217,2218,2219,
+2220,2221,2222,2223,2224,2225,2226,2227,1472,1236,2228,2229,2230,2231,2232,2233,
+2234,2235,1299,2236,2237, 200,2238, 477, 373,2239,2240, 731, 825, 777,2241,2242,
+2243, 521, 486, 548,2244,2245,2246,1473,1300,  53, 549, 137, 875,  76, 158,2247,
+1301,1474, 469, 396,1016, 278, 712,2248, 321, 442, 503, 767, 744, 941,1237,1178,
+1475,2249,  82, 178,1141,1179, 973,2250,1302,2251, 297,2252,2253, 570,2254,2255,
+2256,  18, 450, 206,2257, 290, 292,1142,2258, 511, 162,  99, 346, 164, 735,2259,
+1476,1477,   4, 554, 343, 798,1099,2260,1100,2261,  43, 171,1303, 139, 215,2262,
+2263, 717, 775,2264,1033, 322, 216,2265, 831,2266, 149,2267,1304,2268,2269, 702,
+1238, 135, 845, 347, 309,2270, 484,2271, 878, 655, 238,1006,1478,2272,  67,2273,
+ 295,2274,2275, 461,2276, 478, 942, 412,2277,1034,2278,2279,2280, 265,2281, 541,
+2282,2283,2284,2285,2286,  70, 852,1071,2287,2288,2289,2290,  21,  56, 509, 117,
+ 432,2291,2292, 331, 980, 552,1101, 148, 284, 105, 393,1180,1239, 755,2293, 187,
+2294,1046,1479,2295, 340,2296,  63,1047, 230,2297,2298,1305, 763,1306, 101, 800,
+ 808, 494,2299,2300,2301, 903,2302,  37,1072,  14,   5,2303,  79, 675,2304, 312,
+2305,2306,2307,2308,2309,1480,   6,1307,2310,2311,2312,   1, 470,  35,  24, 229,
+2313, 695, 210,  86, 778,  15, 784, 592, 779,  32,  77, 855, 964,2314, 259,2315,
+ 501, 380,2316,2317,  83, 981, 153, 689,1308,1481,1482,1483,2318,2319, 716,1484,
+2320,2321,2322,2323,2324,2325,1485,2326,2327, 128,  57,  68, 261,1048, 211, 170,
+1240,  31,2328,  51, 435, 742,2329,2330,2331, 635,2332, 264, 456,2333,2334,2335,
+ 425,2336,1486, 143, 507, 263, 943,2337, 363, 920,1487, 256,1488,1102, 243, 601,
+1489,2338,2339,2340,2341,2342,2343,2344, 861,2345,2346,2347,2348,2349,2350, 395,
+2351,1490,1491,  62, 535, 166, 225,2352,2353, 668, 419,1241, 138, 604, 928,2354,
+1181,2355,1492,1493,2356,2357,2358,1143,2359, 696,2360, 387, 307,1309, 682, 476,
+2361,2362, 332,  12, 222, 156,2363, 232,2364, 641, 276, 656, 517,1494,1495,1035,
+ 416, 736,1496,2365,1017, 586,2366,2367,2368,1497,2369, 242,2370,2371,2372,1498,
+2373, 965, 713,2374,2375,2376,2377, 740, 982,1499, 944,1500,1007,2378,2379,1310,
+1501,2380,2381,2382, 785, 329,2383,2384,1502,2385,2386,2387, 932,2388,1503,2389,
+2390,2391,2392,1242,2393,2394,2395,2396,2397, 994, 950,2398,2399,2400,2401,1504,
+1311,2402,2403,2404,2405,1049, 749,2406,2407, 853, 718,1144,1312,2408,1182,1505,
+2409,2410, 255, 516, 479, 564, 550, 214,1506,1507,1313, 413, 239, 444, 339,1145,
+1036,1508,1509,1314,1037,1510,1315,2411,1511,2412,2413,2414, 176, 703, 497, 624,
+ 593, 921, 302,2415, 341, 165,1103,1512,2416,1513,2417,2418,2419, 376,2420, 700,
+2421,2422,2423, 258, 768,1316,2424,1183,2425, 995, 608,2426,2427,2428,2429, 221,
+2430,2431,2432,2433,2434,2435,2436,2437, 195, 323, 726, 188, 897, 983,1317, 377,
+ 644,1050, 879,2438, 452,2439,2440,2441,2442,2443,2444, 914,2445,2446,2447,2448,
+ 915, 489,2449,1514,1184,2450,2451, 515,  64, 427, 495,2452, 583,2453, 483, 485,
+1038, 562, 213,1515, 748, 666,2454,2455,2456,2457, 334,2458, 780, 996,1008, 705,
+1243,2459,2460,2461,2462,2463, 114,2464, 493,1146, 366, 163,1516, 961,1104,2465,
+ 291,2466,1318,1105,2467,1517, 365,2468, 355, 951,1244,2469,1319,2470, 631,2471,
+2472, 218,1320, 364, 320, 756,1518,1519,1321,1520,1322,2473,2474,2475,2476, 997,
+2477,2478,2479,2480, 665,1185,2481, 916,1521,2482,2483,2484, 584, 684,2485,2486,
+ 797,2487,1051,1186,2488,2489,2490,1522,2491,2492, 370,2493,1039,1187,  65,2494,
+ 434, 205, 463,1188,2495, 125, 812, 391, 402, 826, 699, 286, 398, 155, 781, 771,
+ 585,2496, 590, 505,1073,2497, 599, 244, 219, 917,1018, 952, 646,1523,2498,1323,
+2499,2500,  49, 984, 354, 741,2501, 625,2502,1324,2503,1019, 190, 357, 757, 491,
+  95, 782, 868,2504,2505,2506,2507,2508,2509, 134,1524,1074, 422,1525, 898,2510,
+ 161,2511,2512,2513,2514, 769,2515,1526,2516,2517, 411,1325,2518, 472,1527,2519,
+2520,2521,2522,2523,2524, 985,2525,2526,2527,2528,2529,2530, 764,2531,1245,2532,
+2533,  25, 204, 311,2534, 496,2535,1052,2536,2537,2538,2539,2540,2541,2542, 199,
+ 704, 504, 468, 758, 657,1528, 196,  44, 839,1246, 272, 750,2543, 765, 862,2544,
+2545,1326,2546, 132, 615, 933,2547, 732,2548,2549,2550,1189,1529,2551, 283,1247,
+1053, 607, 929,2552,2553,2554, 930, 183, 872, 616,1040,1147,2555,1148,1020, 441,
+ 249,1075,2556,2557,2558, 466, 743,2559,2560,2561,  92, 514, 426, 420, 526,2562,
+2563,2564,2565,2566,2567,2568, 185,2569,2570,2571,2572, 776,1530, 658,2573, 362,
+2574, 361, 922,1076, 793,2575,2576,2577,2578,2579,2580,1531, 251,2581,2582,2583,
+2584,1532,  54, 612, 237,1327,2585,2586, 275, 408, 647, 111,2587,1533,1106, 465,
+   3, 458,   9,  38,2588, 107, 110, 890, 209,  26, 737, 498,2589,1534,2590, 431,
+ 202,  88,1535, 356, 287,1107, 660,1149,2591, 381,1536, 986,1150, 445,1248,1151,
+ 974,2592,2593, 846,2594, 446, 953, 184,1249,1250, 727,2595, 923, 193, 883,2596,
+2597,2598, 102, 324, 539, 817,2599, 421,1041,2600, 832,2601,  94, 175, 197, 406,
+2602, 459,2603,2604,2605,2606,2607, 330, 555,2608,2609,2610, 706,1108, 389,2611,
+2612,2613,2614, 233,2615, 833, 558, 931, 954,1251,2616,2617,1537, 546,2618,2619,
+1009,2620,2621,2622,1538, 690,1328,2623, 955,2624,1539,2625,2626, 772,2627,2628,
+2629,2630,2631, 924, 648, 863, 603,2632,2633, 934,1540, 864, 865,2634, 642,1042,
+ 670,1190,2635,2636,2637,2638, 168,2639, 652, 873, 542,1054,1541,2640,2641,2642,  # 512, 256
+)
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euckrprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euckrprober.py
new file mode 100644
index 0000000..345a060
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euckrprober.py
@@ -0,0 +1,47 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCKRDistributionAnalysis
+from .mbcssm import EUCKR_SM_MODEL
+
+
+class EUCKRProber(MultiByteCharSetProber):
+    def __init__(self):
+        super(EUCKRProber, self).__init__()
+        self.coding_sm = CodingStateMachine(EUCKR_SM_MODEL)
+        self.distribution_analyzer = EUCKRDistributionAnalysis()
+        self.reset()
+
+    @property
+    def charset_name(self):
+        return "EUC-KR"
+
+    @property
+    def language(self):
+        return "Korean"
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euctwfreq.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euctwfreq.py
new file mode 100644
index 0000000..ed7a995
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euctwfreq.py
@@ -0,0 +1,387 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# EUCTW frequency table
+# Converted from big5 work
+# by Taiwan's Mandarin Promotion Council
+# 
+
+# 128  --> 0.42261
+# 256  --> 0.57851
+# 512  --> 0.74851
+# 1024 --> 0.89384
+# 2048 --> 0.97583
+#
+# Idea Distribution Ratio = 0.74851/(1-0.74851) =2.98
+# Random Distribution Ration = 512/(5401-512)=0.105
+#
+# Typical Distribution Ratio about 25% of Ideal one, still much higher than RDR
+
+EUCTW_TYPICAL_DISTRIBUTION_RATIO = 0.75
+
+# Char to FreqOrder table ,
+EUCTW_TABLE_SIZE = 5376
+
+EUCTW_CHAR_TO_FREQ_ORDER = (
+   1,1800,1506, 255,1431, 198,   9,  82,   6,7310, 177, 202,3615,1256,2808, 110,  # 2742
+3735,  33,3241, 261,  76,  44,2113,  16,2931,2184,1176, 659,3868,  26,3404,2643,  # 2758
+1198,3869,3313,4060, 410,2211, 302, 590, 361,1963,   8, 204,  58,4296,7311,1931,  # 2774
+  63,7312,7313, 317,1614,  75, 222, 159,4061,2412,1480,7314,3500,3068, 224,2809,  # 2790
+3616,   3,  10,3870,1471,  29,2774,1135,2852,1939, 873, 130,3242,1123, 312,7315,  # 2806
+4297,2051, 507, 252, 682,7316, 142,1914, 124, 206,2932,  34,3501,3173,  64, 604,  # 2822
+7317,2494,1976,1977, 155,1990, 645, 641,1606,7318,3405, 337,  72, 406,7319,  80,  # 2838
+ 630, 238,3174,1509, 263, 939,1092,2644, 756,1440,1094,3406, 449,  69,2969, 591,  # 2854
+ 179,2095, 471, 115,2034,1843,  60,  50,2970, 134, 806,1868, 734,2035,3407, 180,  # 2870
+ 995,1607, 156, 537,2893, 688,7320, 319,1305, 779,2144, 514,2374, 298,4298, 359,  # 2886
+2495,  90,2707,1338, 663,  11, 906,1099,2545,  20,2436, 182, 532,1716,7321, 732,  # 2902
+1376,4062,1311,1420,3175,  25,2312,1056, 113, 399, 382,1949, 242,3408,2467, 529,  # 2918
+3243, 475,1447,3617,7322, 117,  21, 656, 810,1297,2295,2329,3502,7323, 126,4063,  # 2934
+ 706, 456, 150, 613,4299,  71,1118,2036,4064, 145,3069,  85, 835, 486,2114,1246,  # 2950
+1426, 428, 727,1285,1015, 800, 106, 623, 303,1281,7324,2127,2354, 347,3736, 221,  # 2966
+3503,3110,7325,1955,1153,4065,  83, 296,1199,3070, 192, 624,  93,7326, 822,1897,  # 2982
+2810,3111, 795,2064, 991,1554,1542,1592,  27,  43,2853, 859, 139,1456, 860,4300,  # 2998
+ 437, 712,3871, 164,2392,3112, 695, 211,3017,2096, 195,3872,1608,3504,3505,3618,  # 3014
+3873, 234, 811,2971,2097,3874,2229,1441,3506,1615,2375, 668,2076,1638, 305, 228,  # 3030
+1664,4301, 467, 415,7327, 262,2098,1593, 239, 108, 300, 200,1033, 512,1247,2077,  # 3046
+7328,7329,2173,3176,3619,2673, 593, 845,1062,3244,  88,1723,2037,3875,1950, 212,  # 3062
+ 266, 152, 149, 468,1898,4066,4302,  77, 187,7330,3018,  37,   5,2972,7331,3876,  # 3078
+7332,7333,  39,2517,4303,2894,3177,2078,  55, 148,  74,4304, 545, 483,1474,1029,  # 3094
+1665, 217,1869,1531,3113,1104,2645,4067,  24, 172,3507, 900,3877,3508,3509,4305,  # 3110
+  32,1408,2811,1312, 329, 487,2355,2247,2708, 784,2674,   4,3019,3314,1427,1788,  # 3126
+ 188, 109, 499,7334,3620,1717,1789, 888,1217,3020,4306,7335,3510,7336,3315,1520,  # 3142
+3621,3878, 196,1034, 775,7337,7338, 929,1815, 249, 439,  38,7339,1063,7340, 794,  # 3158
+3879,1435,2296,  46, 178,3245,2065,7341,2376,7342, 214,1709,4307, 804,  35, 707,  # 3174
+ 324,3622,1601,2546, 140, 459,4068,7343,7344,1365, 839, 272, 978,2257,2572,3409,  # 3190
+2128,1363,3623,1423, 697, 100,3071,  48,  70,1231, 495,3114,2193,7345,1294,7346,  # 3206
+2079, 462, 586,1042,3246, 853, 256, 988, 185,2377,3410,1698, 434,1084,7347,3411,  # 3222
+ 314,2615,2775,4308,2330,2331, 569,2280, 637,1816,2518, 757,1162,1878,1616,3412,  # 3238
+ 287,1577,2115, 768,4309,1671,2854,3511,2519,1321,3737, 909,2413,7348,4069, 933,  # 3254
+3738,7349,2052,2356,1222,4310, 765,2414,1322, 786,4311,7350,1919,1462,1677,2895,  # 3270
+1699,7351,4312,1424,2437,3115,3624,2590,3316,1774,1940,3413,3880,4070, 309,1369,  # 3286
+1130,2812, 364,2230,1653,1299,3881,3512,3882,3883,2646, 525,1085,3021, 902,2000,  # 3302
+1475, 964,4313, 421,1844,1415,1057,2281, 940,1364,3116, 376,4314,4315,1381,   7,  # 3318
+2520, 983,2378, 336,1710,2675,1845, 321,3414, 559,1131,3022,2742,1808,1132,1313,  # 3334
+ 265,1481,1857,7352, 352,1203,2813,3247, 167,1089, 420,2814, 776, 792,1724,3513,  # 3350
+4071,2438,3248,7353,4072,7354, 446, 229, 333,2743, 901,3739,1200,1557,4316,2647,  # 3366
+1920, 395,2744,2676,3740,4073,1835, 125, 916,3178,2616,4317,7355,7356,3741,7357,  # 3382
+7358,7359,4318,3117,3625,1133,2547,1757,3415,1510,2313,1409,3514,7360,2145, 438,  # 3398
+2591,2896,2379,3317,1068, 958,3023, 461, 311,2855,2677,4074,1915,3179,4075,1978,  # 3414
+ 383, 750,2745,2617,4076, 274, 539, 385,1278,1442,7361,1154,1964, 384, 561, 210,  # 3430
+  98,1295,2548,3515,7362,1711,2415,1482,3416,3884,2897,1257, 129,7363,3742, 642,  # 3446
+ 523,2776,2777,2648,7364, 141,2231,1333,  68, 176, 441, 876, 907,4077, 603,2592,  # 3462
+ 710, 171,3417, 404, 549,  18,3118,2393,1410,3626,1666,7365,3516,4319,2898,4320,  # 3478
+7366,2973, 368,7367, 146, 366,  99, 871,3627,1543, 748, 807,1586,1185,  22,2258,  # 3494
+ 379,3743,3180,7368,3181, 505,1941,2618,1991,1382,2314,7369, 380,2357, 218, 702,  # 3510
+1817,1248,3418,3024,3517,3318,3249,7370,2974,3628, 930,3250,3744,7371,  59,7372,  # 3526
+ 585, 601,4078, 497,3419,1112,1314,4321,1801,7373,1223,1472,2174,7374, 749,1836,  # 3542
+ 690,1899,3745,1772,3885,1476, 429,1043,1790,2232,2116, 917,4079, 447,1086,1629,  # 3558
+7375, 556,7376,7377,2020,1654, 844,1090, 105, 550, 966,1758,2815,1008,1782, 686,  # 3574
+1095,7378,2282, 793,1602,7379,3518,2593,4322,4080,2933,2297,4323,3746, 980,2496,  # 3590
+ 544, 353, 527,4324, 908,2678,2899,7380, 381,2619,1942,1348,7381,1341,1252, 560,  # 3606
+3072,7382,3420,2856,7383,2053, 973, 886,2080, 143,4325,7384,7385, 157,3886, 496,  # 3622
+4081,  57, 840, 540,2038,4326,4327,3421,2117,1445, 970,2259,1748,1965,2081,4082,  # 3638
+3119,1234,1775,3251,2816,3629, 773,1206,2129,1066,2039,1326,3887,1738,1725,4083,  # 3654
+ 279,3120,  51,1544,2594, 423,1578,2130,2066, 173,4328,1879,7386,7387,1583, 264,  # 3670
+ 610,3630,4329,2439, 280, 154,7388,7389,7390,1739, 338,1282,3073, 693,2857,1411,  # 3686
+1074,3747,2440,7391,4330,7392,7393,1240, 952,2394,7394,2900,1538,2679, 685,1483,  # 3702
+4084,2468,1436, 953,4085,2054,4331, 671,2395,  79,4086,2441,3252, 608, 567,2680,  # 3718
+3422,4087,4088,1691, 393,1261,1791,2396,7395,4332,7396,7397,7398,7399,1383,1672,  # 3734
+3748,3182,1464, 522,1119, 661,1150, 216, 675,4333,3888,1432,3519, 609,4334,2681,  # 3750
+2397,7400,7401,7402,4089,3025,   0,7403,2469, 315, 231,2442, 301,3319,4335,2380,  # 3766
+7404, 233,4090,3631,1818,4336,4337,7405,  96,1776,1315,2082,7406, 257,7407,1809,  # 3782
+3632,2709,1139,1819,4091,2021,1124,2163,2778,1777,2649,7408,3074, 363,1655,3183,  # 3798
+7409,2975,7410,7411,7412,3889,1567,3890, 718, 103,3184, 849,1443, 341,3320,2934,  # 3814
+1484,7413,1712, 127,  67, 339,4092,2398, 679,1412, 821,7414,7415, 834, 738, 351,  # 3830
+2976,2146, 846, 235,1497,1880, 418,1992,3749,2710, 186,1100,2147,2746,3520,1545,  # 3846
+1355,2935,2858,1377, 583,3891,4093,2573,2977,7416,1298,3633,1078,2549,3634,2358,  # 3862
+  78,3750,3751, 267,1289,2099,2001,1594,4094, 348, 369,1274,2194,2175,1837,4338,  # 3878
+1820,2817,3635,2747,2283,2002,4339,2936,2748, 144,3321, 882,4340,3892,2749,3423,  # 3894
+4341,2901,7417,4095,1726, 320,7418,3893,3026, 788,2978,7419,2818,1773,1327,2859,  # 3910
+3894,2819,7420,1306,4342,2003,1700,3752,3521,2359,2650, 787,2022, 506, 824,3636,  # 3926
+ 534, 323,4343,1044,3322,2023,1900, 946,3424,7421,1778,1500,1678,7422,1881,4344,  # 3942
+ 165, 243,4345,3637,2521, 123, 683,4096, 764,4346,  36,3895,1792, 589,2902, 816,  # 3958
+ 626,1667,3027,2233,1639,1555,1622,3753,3896,7423,3897,2860,1370,1228,1932, 891,  # 3974
+2083,2903, 304,4097,7424, 292,2979,2711,3522, 691,2100,4098,1115,4347, 118, 662,  # 3990
+7425, 611,1156, 854,2381,1316,2861,   2, 386, 515,2904,7426,7427,3253, 868,2234,  # 4006
+1486, 855,2651, 785,2212,3028,7428,1040,3185,3523,7429,3121, 448,7430,1525,7431,  # 4022
+2164,4348,7432,3754,7433,4099,2820,3524,3122, 503, 818,3898,3123,1568, 814, 676,  # 4038
+1444, 306,1749,7434,3755,1416,1030, 197,1428, 805,2821,1501,4349,7435,7436,7437,  # 4054
+1993,7438,4350,7439,7440,2195,  13,2779,3638,2980,3124,1229,1916,7441,3756,2131,  # 4070
+7442,4100,4351,2399,3525,7443,2213,1511,1727,1120,7444,7445, 646,3757,2443, 307,  # 4086
+7446,7447,1595,3186,7448,7449,7450,3639,1113,1356,3899,1465,2522,2523,7451, 519,  # 4102
+7452, 128,2132,  92,2284,1979,7453,3900,1512, 342,3125,2196,7454,2780,2214,1980,  # 4118
+3323,7455, 290,1656,1317, 789, 827,2360,7456,3758,4352, 562, 581,3901,7457, 401,  # 4134
+4353,2248,  94,4354,1399,2781,7458,1463,2024,4355,3187,1943,7459, 828,1105,4101,  # 4150
+1262,1394,7460,4102, 605,4356,7461,1783,2862,7462,2822, 819,2101, 578,2197,2937,  # 4166
+7463,1502, 436,3254,4103,3255,2823,3902,2905,3425,3426,7464,2712,2315,7465,7466,  # 4182
+2332,2067,  23,4357, 193, 826,3759,2102, 699,1630,4104,3075, 390,1793,1064,3526,  # 4198
+7467,1579,3076,3077,1400,7468,4105,1838,1640,2863,7469,4358,4359, 137,4106, 598,  # 4214
+3078,1966, 780, 104, 974,2938,7470, 278, 899, 253, 402, 572, 504, 493,1339,7471,  # 4230
+3903,1275,4360,2574,2550,7472,3640,3029,3079,2249, 565,1334,2713, 863,  41,7473,  # 4246
+7474,4361,7475,1657,2333,  19, 463,2750,4107, 606,7476,2981,3256,1087,2084,1323,  # 4262
+2652,2982,7477,1631,1623,1750,4108,2682,7478,2864, 791,2714,2653,2334, 232,2416,  # 4278
+7479,2983,1498,7480,2654,2620, 755,1366,3641,3257,3126,2025,1609, 119,1917,3427,  # 4294
+ 862,1026,4109,7481,3904,3760,4362,3905,4363,2260,1951,2470,7482,1125, 817,4110,  # 4310
+4111,3906,1513,1766,2040,1487,4112,3030,3258,2824,3761,3127,7483,7484,1507,7485,  # 4326
+2683, 733,  40,1632,1106,2865, 345,4113, 841,2524, 230,4364,2984,1846,3259,3428,  # 4342
+7486,1263, 986,3429,7487, 735, 879, 254,1137, 857, 622,1300,1180,1388,1562,3907,  # 4358
+3908,2939, 967,2751,2655,1349, 592,2133,1692,3324,2985,1994,4114,1679,3909,1901,  # 4374
+2185,7488, 739,3642,2715,1296,1290,7489,4115,2198,2199,1921,1563,2595,2551,1870,  # 4390
+2752,2986,7490, 435,7491, 343,1108, 596,  17,1751,4365,2235,3430,3643,7492,4366,  # 4406
+ 294,3527,2940,1693, 477, 979, 281,2041,3528, 643,2042,3644,2621,2782,2261,1031,  # 4422
+2335,2134,2298,3529,4367, 367,1249,2552,7493,3530,7494,4368,1283,3325,2004, 240,  # 4438
+1762,3326,4369,4370, 836,1069,3128, 474,7495,2148,2525, 268,3531,7496,3188,1521,  # 4454
+1284,7497,1658,1546,4116,7498,3532,3533,7499,4117,3327,2684,1685,4118, 961,1673,  # 4470
+2622, 190,2005,2200,3762,4371,4372,7500, 570,2497,3645,1490,7501,4373,2623,3260,  # 4486
+1956,4374, 584,1514, 396,1045,1944,7502,4375,1967,2444,7503,7504,4376,3910, 619,  # 4502
+7505,3129,3261, 215,2006,2783,2553,3189,4377,3190,4378, 763,4119,3763,4379,7506,  # 4518
+7507,1957,1767,2941,3328,3646,1174, 452,1477,4380,3329,3130,7508,2825,1253,2382,  # 4534
+2186,1091,2285,4120, 492,7509, 638,1169,1824,2135,1752,3911, 648, 926,1021,1324,  # 4550
+4381, 520,4382, 997, 847,1007, 892,4383,3764,2262,1871,3647,7510,2400,1784,4384,  # 4566
+1952,2942,3080,3191,1728,4121,2043,3648,4385,2007,1701,3131,1551,  30,2263,4122,  # 4582
+7511,2026,4386,3534,7512, 501,7513,4123, 594,3431,2165,1821,3535,3432,3536,3192,  # 4598
+ 829,2826,4124,7514,1680,3132,1225,4125,7515,3262,4387,4126,3133,2336,7516,4388,  # 4614
+4127,7517,3912,3913,7518,1847,2383,2596,3330,7519,4389, 374,3914, 652,4128,4129,  # 4630
+ 375,1140, 798,7520,7521,7522,2361,4390,2264, 546,1659, 138,3031,2445,4391,7523,  # 4646
+2250, 612,1848, 910, 796,3765,1740,1371, 825,3766,3767,7524,2906,2554,7525, 692,  # 4662
+ 444,3032,2624, 801,4392,4130,7526,1491, 244,1053,3033,4131,4132, 340,7527,3915,  # 4678
+1041,2987, 293,1168,  87,1357,7528,1539, 959,7529,2236, 721, 694,4133,3768, 219,  # 4694
+1478, 644,1417,3331,2656,1413,1401,1335,1389,3916,7530,7531,2988,2362,3134,1825,  # 4710
+ 730,1515, 184,2827,  66,4393,7532,1660,2943, 246,3332, 378,1457, 226,3433, 975,  # 4726
+3917,2944,1264,3537, 674, 696,7533, 163,7534,1141,2417,2166, 713,3538,3333,4394,  # 4742
+3918,7535,7536,1186,  15,7537,1079,1070,7538,1522,3193,3539, 276,1050,2716, 758,  # 4758
+1126, 653,2945,3263,7539,2337, 889,3540,3919,3081,2989, 903,1250,4395,3920,3434,  # 4774
+3541,1342,1681,1718, 766,3264, 286,  89,2946,3649,7540,1713,7541,2597,3334,2990,  # 4790
+7542,2947,2215,3194,2866,7543,4396,2498,2526, 181, 387,1075,3921, 731,2187,3335,  # 4806
+7544,3265, 310, 313,3435,2299, 770,4134,  54,3034, 189,4397,3082,3769,3922,7545,  # 4822
+1230,1617,1849, 355,3542,4135,4398,3336, 111,4136,3650,1350,3135,3436,3035,4137,  # 4838
+2149,3266,3543,7546,2784,3923,3924,2991, 722,2008,7547,1071, 247,1207,2338,2471,  # 4854
+1378,4399,2009, 864,1437,1214,4400, 373,3770,1142,2216, 667,4401, 442,2753,2555,  # 4870
+3771,3925,1968,4138,3267,1839, 837, 170,1107, 934,1336,1882,7548,7549,2118,4139,  # 4886
+2828, 743,1569,7550,4402,4140, 582,2384,1418,3437,7551,1802,7552, 357,1395,1729,  # 4902
+3651,3268,2418,1564,2237,7553,3083,3772,1633,4403,1114,2085,4141,1532,7554, 482,  # 4918
+2446,4404,7555,7556,1492, 833,1466,7557,2717,3544,1641,2829,7558,1526,1272,3652,  # 4934
+4142,1686,1794, 416,2556,1902,1953,1803,7559,3773,2785,3774,1159,2316,7560,2867,  # 4950
+4405,1610,1584,3036,2419,2754, 443,3269,1163,3136,7561,7562,3926,7563,4143,2499,  # 4966
+3037,4406,3927,3137,2103,1647,3545,2010,1872,4144,7564,4145, 431,3438,7565, 250,  # 4982
+  97,  81,4146,7566,1648,1850,1558, 160, 848,7567, 866, 740,1694,7568,2201,2830,  # 4998
+3195,4147,4407,3653,1687, 950,2472, 426, 469,3196,3654,3655,3928,7569,7570,1188,  # 5014
+ 424,1995, 861,3546,4148,3775,2202,2685, 168,1235,3547,4149,7571,2086,1674,4408,  # 5030
+3337,3270, 220,2557,1009,7572,3776, 670,2992, 332,1208, 717,7573,7574,3548,2447,  # 5046
+3929,3338,7575, 513,7576,1209,2868,3339,3138,4409,1080,7577,7578,7579,7580,2527,  # 5062
+3656,3549, 815,1587,3930,3931,7581,3550,3439,3777,1254,4410,1328,3038,1390,3932,  # 5078
+1741,3933,3778,3934,7582, 236,3779,2448,3271,7583,7584,3657,3780,1273,3781,4411,  # 5094
+7585, 308,7586,4412, 245,4413,1851,2473,1307,2575, 430, 715,2136,2449,7587, 270,  # 5110
+ 199,2869,3935,7588,3551,2718,1753, 761,1754, 725,1661,1840,4414,3440,3658,7589,  # 5126
+7590, 587,  14,3272, 227,2598, 326, 480,2265, 943,2755,3552, 291, 650,1883,7591,  # 5142
+1702,1226, 102,1547,  62,3441, 904,4415,3442,1164,4150,7592,7593,1224,1548,2756,  # 5158
+ 391, 498,1493,7594,1386,1419,7595,2055,1177,4416, 813, 880,1081,2363, 566,1145,  # 5174
+4417,2286,1001,1035,2558,2599,2238, 394,1286,7596,7597,2068,7598,  86,1494,1730,  # 5190
+3936, 491,1588, 745, 897,2948, 843,3340,3937,2757,2870,3273,1768, 998,2217,2069,  # 5206
+ 397,1826,1195,1969,3659,2993,3341, 284,7599,3782,2500,2137,2119,1903,7600,3938,  # 5222
+2150,3939,4151,1036,3443,1904, 114,2559,4152, 209,1527,7601,7602,2949,2831,2625,  # 5238
+2385,2719,3139, 812,2560,7603,3274,7604,1559, 737,1884,3660,1210, 885,  28,2686,  # 5254
+3553,3783,7605,4153,1004,1779,4418,7606, 346,1981,2218,2687,4419,3784,1742, 797,  # 5270
+1642,3940,1933,1072,1384,2151, 896,3941,3275,3661,3197,2871,3554,7607,2561,1958,  # 5286
+4420,2450,1785,7608,7609,7610,3942,4154,1005,1308,3662,4155,2720,4421,4422,1528,  # 5302
+2600, 161,1178,4156,1982, 987,4423,1101,4157, 631,3943,1157,3198,2420,1343,1241,  # 5318
+1016,2239,2562, 372, 877,2339,2501,1160, 555,1934, 911,3944,7611, 466,1170, 169,  # 5334
+1051,2907,2688,3663,2474,2994,1182,2011,2563,1251,2626,7612, 992,2340,3444,1540,  # 5350
+2721,1201,2070,2401,1996,2475,7613,4424, 528,1922,2188,1503,1873,1570,2364,3342,  # 5366
+3276,7614, 557,1073,7615,1827,3445,2087,2266,3140,3039,3084, 767,3085,2786,4425,  # 5382
+1006,4158,4426,2341,1267,2176,3664,3199, 778,3945,3200,2722,1597,2657,7616,4427,  # 5398
+7617,3446,7618,7619,7620,3277,2689,1433,3278, 131,  95,1504,3946, 723,4159,3141,  # 5414
+1841,3555,2758,2189,3947,2027,2104,3665,7621,2995,3948,1218,7622,3343,3201,3949,  # 5430
+4160,2576, 248,1634,3785, 912,7623,2832,3666,3040,3786, 654,  53,7624,2996,7625,  # 5446
+1688,4428, 777,3447,1032,3950,1425,7626, 191, 820,2120,2833, 971,4429, 931,3202,  # 5462
+ 135, 664, 783,3787,1997, 772,2908,1935,3951,3788,4430,2909,3203, 282,2723, 640,  # 5478
+1372,3448,1127, 922, 325,3344,7627,7628, 711,2044,7629,7630,3952,2219,2787,1936,  # 5494
+3953,3345,2220,2251,3789,2300,7631,4431,3790,1258,3279,3954,3204,2138,2950,3955,  # 5510
+3956,7632,2221, 258,3205,4432, 101,1227,7633,3280,1755,7634,1391,3281,7635,2910,  # 5526
+2056, 893,7636,7637,7638,1402,4161,2342,7639,7640,3206,3556,7641,7642, 878,1325,  # 5542
+1780,2788,4433, 259,1385,2577, 744,1183,2267,4434,7643,3957,2502,7644, 684,1024,  # 5558
+4162,7645, 472,3557,3449,1165,3282,3958,3959, 322,2152, 881, 455,1695,1152,1340,  # 5574
+ 660, 554,2153,4435,1058,4436,4163, 830,1065,3346,3960,4437,1923,7646,1703,1918,  # 5590
+7647, 932,2268, 122,7648,4438, 947, 677,7649,3791,2627, 297,1905,1924,2269,4439,  # 5606
+2317,3283,7650,7651,4164,7652,4165,  84,4166, 112, 989,7653, 547,1059,3961, 701,  # 5622
+3558,1019,7654,4167,7655,3450, 942, 639, 457,2301,2451, 993,2951, 407, 851, 494,  # 5638
+4440,3347, 927,7656,1237,7657,2421,3348, 573,4168, 680, 921,2911,1279,1874, 285,  # 5654
+ 790,1448,1983, 719,2167,7658,7659,4441,3962,3963,1649,7660,1541, 563,7661,1077,  # 5670
+7662,3349,3041,3451, 511,2997,3964,3965,3667,3966,1268,2564,3350,3207,4442,4443,  # 5686
+7663, 535,1048,1276,1189,2912,2028,3142,1438,1373,2834,2952,1134,2012,7664,4169,  # 5702
+1238,2578,3086,1259,7665, 700,7666,2953,3143,3668,4170,7667,4171,1146,1875,1906,  # 5718
+4444,2601,3967, 781,2422, 132,1589, 203, 147, 273,2789,2402, 898,1786,2154,3968,  # 5734
+3969,7668,3792,2790,7669,7670,4445,4446,7671,3208,7672,1635,3793, 965,7673,1804,  # 5750
+2690,1516,3559,1121,1082,1329,3284,3970,1449,3794,  65,1128,2835,2913,2759,1590,  # 5766
+3795,7674,7675,  12,2658,  45, 976,2579,3144,4447, 517,2528,1013,1037,3209,7676,  # 5782
+3796,2836,7677,3797,7678,3452,7679,2602, 614,1998,2318,3798,3087,2724,2628,7680,  # 5798
+2580,4172, 599,1269,7681,1810,3669,7682,2691,3088, 759,1060, 489,1805,3351,3285,  # 5814
+1358,7683,7684,2386,1387,1215,2629,2252, 490,7685,7686,4173,1759,2387,2343,7687,  # 5830
+4448,3799,1907,3971,2630,1806,3210,4449,3453,3286,2760,2344, 874,7688,7689,3454,  # 5846
+3670,1858,  91,2914,3671,3042,3800,4450,7690,3145,3972,2659,7691,3455,1202,1403,  # 5862
+3801,2954,2529,1517,2503,4451,3456,2504,7692,4452,7693,2692,1885,1495,1731,3973,  # 5878
+2365,4453,7694,2029,7695,7696,3974,2693,1216, 237,2581,4174,2319,3975,3802,4454,  # 5894
+4455,2694,3560,3457, 445,4456,7697,7698,7699,7700,2761,  61,3976,3672,1822,3977,  # 5910
+7701, 687,2045, 935, 925, 405,2660, 703,1096,1859,2725,4457,3978,1876,1367,2695,  # 5926
+3352, 918,2105,1781,2476, 334,3287,1611,1093,4458, 564,3146,3458,3673,3353, 945,  # 5942
+2631,2057,4459,7702,1925, 872,4175,7703,3459,2696,3089, 349,4176,3674,3979,4460,  # 5958
+3803,4177,3675,2155,3980,4461,4462,4178,4463,2403,2046, 782,3981, 400, 251,4179,  # 5974
+1624,7704,7705, 277,3676, 299,1265, 476,1191,3804,2121,4180,4181,1109, 205,7706,  # 5990
+2582,1000,2156,3561,1860,7707,7708,7709,4464,7710,4465,2565, 107,2477,2157,3982,  # 6006
+3460,3147,7711,1533, 541,1301, 158, 753,4182,2872,3562,7712,1696, 370,1088,4183,  # 6022
+4466,3563, 579, 327, 440, 162,2240, 269,1937,1374,3461, 968,3043,  56,1396,3090,  # 6038
+2106,3288,3354,7713,1926,2158,4467,2998,7714,3564,7715,7716,3677,4468,2478,7717,  # 6054
+2791,7718,1650,4469,7719,2603,7720,7721,3983,2661,3355,1149,3356,3984,3805,3985,  # 6070
+7722,1076,  49,7723, 951,3211,3289,3290, 450,2837, 920,7724,1811,2792,2366,4184,  # 6086
+1908,1138,2367,3806,3462,7725,3212,4470,1909,1147,1518,2423,4471,3807,7726,4472,  # 6102
+2388,2604, 260,1795,3213,7727,7728,3808,3291, 708,7729,3565,1704,7730,3566,1351,  # 6118
+1618,3357,2999,1886, 944,4185,3358,4186,3044,3359,4187,7731,3678, 422, 413,1714,  # 6134
+3292, 500,2058,2345,4188,2479,7732,1344,1910, 954,7733,1668,7734,7735,3986,2404,  # 6150
+4189,3567,3809,4190,7736,2302,1318,2505,3091, 133,3092,2873,4473, 629,  31,2838,  # 6166
+2697,3810,4474, 850, 949,4475,3987,2955,1732,2088,4191,1496,1852,7737,3988, 620,  # 6182
+3214, 981,1242,3679,3360,1619,3680,1643,3293,2139,2452,1970,1719,3463,2168,7738,  # 6198
+3215,7739,7740,3361,1828,7741,1277,4476,1565,2047,7742,1636,3568,3093,7743, 869,  # 6214
+2839, 655,3811,3812,3094,3989,3000,3813,1310,3569,4477,7744,7745,7746,1733, 558,  # 6230
+4478,3681, 335,1549,3045,1756,4192,3682,1945,3464,1829,1291,1192, 470,2726,2107,  # 6246
+2793, 913,1054,3990,7747,1027,7748,3046,3991,4479, 982,2662,3362,3148,3465,3216,  # 6262
+3217,1946,2794,7749, 571,4480,7750,1830,7751,3570,2583,1523,2424,7752,2089, 984,  # 6278
+4481,3683,1959,7753,3684, 852, 923,2795,3466,3685, 969,1519, 999,2048,2320,1705,  # 6294
+7754,3095, 615,1662, 151, 597,3992,2405,2321,1049, 275,4482,3686,4193, 568,3687,  # 6310
+3571,2480,4194,3688,7755,2425,2270, 409,3218,7756,1566,2874,3467,1002, 769,2840,  # 6326
+ 194,2090,3149,3689,2222,3294,4195, 628,1505,7757,7758,1763,2177,3001,3993, 521,  # 6342
+1161,2584,1787,2203,2406,4483,3994,1625,4196,4197, 412,  42,3096, 464,7759,2632,  # 6358
+4484,3363,1760,1571,2875,3468,2530,1219,2204,3814,2633,2140,2368,4485,4486,3295,  # 6374
+1651,3364,3572,7760,7761,3573,2481,3469,7762,3690,7763,7764,2271,2091, 460,7765,  # 6390
+4487,7766,3002, 962, 588,3574, 289,3219,2634,1116,  52,7767,3047,1796,7768,7769,  # 6406
+7770,1467,7771,1598,1143,3691,4198,1984,1734,1067,4488,1280,3365, 465,4489,1572,  # 6422
+ 510,7772,1927,2241,1812,1644,3575,7773,4490,3692,7774,7775,2663,1573,1534,7776,  # 6438
+7777,4199, 536,1807,1761,3470,3815,3150,2635,7778,7779,7780,4491,3471,2915,1911,  # 6454
+2796,7781,3296,1122, 377,3220,7782, 360,7783,7784,4200,1529, 551,7785,2059,3693,  # 6470
+1769,2426,7786,2916,4201,3297,3097,2322,2108,2030,4492,1404, 136,1468,1479, 672,  # 6486
+1171,3221,2303, 271,3151,7787,2762,7788,2049, 678,2727, 865,1947,4493,7789,2013,  # 6502
+3995,2956,7790,2728,2223,1397,3048,3694,4494,4495,1735,2917,3366,3576,7791,3816,  # 6518
+ 509,2841,2453,2876,3817,7792,7793,3152,3153,4496,4202,2531,4497,2304,1166,1010,  # 6534
+ 552, 681,1887,7794,7795,2957,2958,3996,1287,1596,1861,3154, 358, 453, 736, 175,  # 6550
+ 478,1117, 905,1167,1097,7796,1853,1530,7797,1706,7798,2178,3472,2287,3695,3473,  # 6566
+3577,4203,2092,4204,7799,3367,1193,2482,4205,1458,2190,2205,1862,1888,1421,3298,  # 6582
+2918,3049,2179,3474, 595,2122,7800,3997,7801,7802,4206,1707,2636, 223,3696,1359,  # 6598
+ 751,3098, 183,3475,7803,2797,3003, 419,2369, 633, 704,3818,2389, 241,7804,7805,  # 6614
+7806, 838,3004,3697,2272,2763,2454,3819,1938,2050,3998,1309,3099,2242,1181,7807,  # 6630
+1136,2206,3820,2370,1446,4207,2305,4498,7808,7809,4208,1055,2605, 484,3698,7810,  # 6646
+3999, 625,4209,2273,3368,1499,4210,4000,7811,4001,4211,3222,2274,2275,3476,7812,  # 6662
+7813,2764, 808,2606,3699,3369,4002,4212,3100,2532, 526,3370,3821,4213, 955,7814,  # 6678
+1620,4214,2637,2427,7815,1429,3700,1669,1831, 994, 928,7816,3578,1260,7817,7818,  # 6694
+7819,1948,2288, 741,2919,1626,4215,2729,2455, 867,1184, 362,3371,1392,7820,7821,  # 6710
+4003,4216,1770,1736,3223,2920,4499,4500,1928,2698,1459,1158,7822,3050,3372,2877,  # 6726
+1292,1929,2506,2842,3701,1985,1187,2071,2014,2607,4217,7823,2566,2507,2169,3702,  # 6742
+2483,3299,7824,3703,4501,7825,7826, 666,1003,3005,1022,3579,4218,7827,4502,1813,  # 6758
+2253, 574,3822,1603, 295,1535, 705,3823,4219, 283, 858, 417,7828,7829,3224,4503,  # 6774
+4504,3051,1220,1889,1046,2276,2456,4004,1393,1599, 689,2567, 388,4220,7830,2484,  # 6790
+ 802,7831,2798,3824,2060,1405,2254,7832,4505,3825,2109,1052,1345,3225,1585,7833,  # 6806
+ 809,7834,7835,7836, 575,2730,3477, 956,1552,1469,1144,2323,7837,2324,1560,2457,  # 6822
+3580,3226,4005, 616,2207,3155,2180,2289,7838,1832,7839,3478,4506,7840,1319,3704,  # 6838
+3705,1211,3581,1023,3227,1293,2799,7841,7842,7843,3826, 607,2306,3827, 762,2878,  # 6854
+1439,4221,1360,7844,1485,3052,7845,4507,1038,4222,1450,2061,2638,4223,1379,4508,  # 6870
+2585,7846,7847,4224,1352,1414,2325,2921,1172,7848,7849,3828,3829,7850,1797,1451,  # 6886
+7851,7852,7853,7854,2922,4006,4007,2485,2346, 411,4008,4009,3582,3300,3101,4509,  # 6902
+1561,2664,1452,4010,1375,7855,7856,  47,2959, 316,7857,1406,1591,2923,3156,7858,  # 6918
+1025,2141,3102,3157, 354,2731, 884,2224,4225,2407, 508,3706, 726,3583, 996,2428,  # 6934
+3584, 729,7859, 392,2191,1453,4011,4510,3707,7860,7861,2458,3585,2608,1675,2800,  # 6950
+ 919,2347,2960,2348,1270,4511,4012,  73,7862,7863, 647,7864,3228,2843,2255,1550,  # 6966
+1346,3006,7865,1332, 883,3479,7866,7867,7868,7869,3301,2765,7870,1212, 831,1347,  # 6982
+4226,4512,2326,3830,1863,3053, 720,3831,4513,4514,3832,7871,4227,7872,7873,4515,  # 6998
+7874,7875,1798,4516,3708,2609,4517,3586,1645,2371,7876,7877,2924, 669,2208,2665,  # 7014
+2429,7878,2879,7879,7880,1028,3229,7881,4228,2408,7882,2256,1353,7883,7884,4518,  # 7030
+3158, 518,7885,4013,7886,4229,1960,7887,2142,4230,7888,7889,3007,2349,2350,3833,  # 7046
+ 516,1833,1454,4014,2699,4231,4519,2225,2610,1971,1129,3587,7890,2766,7891,2961,  # 7062
+1422, 577,1470,3008,1524,3373,7892,7893, 432,4232,3054,3480,7894,2586,1455,2508,  # 7078
+2226,1972,1175,7895,1020,2732,4015,3481,4520,7896,2733,7897,1743,1361,3055,3482,  # 7094
+2639,4016,4233,4521,2290, 895, 924,4234,2170, 331,2243,3056, 166,1627,3057,1098,  # 7110
+7898,1232,2880,2227,3374,4522, 657, 403,1196,2372, 542,3709,3375,1600,4235,3483,  # 7126
+7899,4523,2767,3230, 576, 530,1362,7900,4524,2533,2666,3710,4017,7901, 842,3834,  # 7142
+7902,2801,2031,1014,4018, 213,2700,3376, 665, 621,4236,7903,3711,2925,2430,7904,  # 7158
+2431,3302,3588,3377,7905,4237,2534,4238,4525,3589,1682,4239,3484,1380,7906, 724,  # 7174
+2277, 600,1670,7907,1337,1233,4526,3103,2244,7908,1621,4527,7909, 651,4240,7910,  # 7190
+1612,4241,2611,7911,2844,7912,2734,2307,3058,7913, 716,2459,3059, 174,1255,2701,  # 7206
+4019,3590, 548,1320,1398, 728,4020,1574,7914,1890,1197,3060,4021,7915,3061,3062,  # 7222
+3712,3591,3713, 747,7916, 635,4242,4528,7917,7918,7919,4243,7920,7921,4529,7922,  # 7238
+3378,4530,2432, 451,7923,3714,2535,2072,4244,2735,4245,4022,7924,1764,4531,7925,  # 7254
+4246, 350,7926,2278,2390,2486,7927,4247,4023,2245,1434,4024, 488,4532, 458,4248,  # 7270
+4025,3715, 771,1330,2391,3835,2568,3159,2159,2409,1553,2667,3160,4249,7928,2487,  # 7286
+2881,2612,1720,2702,4250,3379,4533,7929,2536,4251,7930,3231,4252,2768,7931,2015,  # 7302
+2736,7932,1155,1017,3716,3836,7933,3303,2308, 201,1864,4253,1430,7934,4026,7935,  # 7318
+7936,7937,7938,7939,4254,1604,7940, 414,1865, 371,2587,4534,4535,3485,2016,3104,  # 7334
+4536,1708, 960,4255, 887, 389,2171,1536,1663,1721,7941,2228,4027,2351,2926,1580,  # 7350
+7942,7943,7944,1744,7945,2537,4537,4538,7946,4539,7947,2073,7948,7949,3592,3380,  # 7366
+2882,4256,7950,4257,2640,3381,2802, 673,2703,2460, 709,3486,4028,3593,4258,7951,  # 7382
+1148, 502, 634,7952,7953,1204,4540,3594,1575,4541,2613,3717,7954,3718,3105, 948,  # 7398
+3232, 121,1745,3837,1110,7955,4259,3063,2509,3009,4029,3719,1151,1771,3838,1488,  # 7414
+4030,1986,7956,2433,3487,7957,7958,2093,7959,4260,3839,1213,1407,2803, 531,2737,  # 7430
+2538,3233,1011,1537,7960,2769,4261,3106,1061,7961,3720,3721,1866,2883,7962,2017,  # 7446
+ 120,4262,4263,2062,3595,3234,2309,3840,2668,3382,1954,4542,7963,7964,3488,1047,  # 7462
+2704,1266,7965,1368,4543,2845, 649,3383,3841,2539,2738,1102,2846,2669,7966,7967,  # 7478
+1999,7968,1111,3596,2962,7969,2488,3842,3597,2804,1854,3384,3722,7970,7971,3385,  # 7494
+2410,2884,3304,3235,3598,7972,2569,7973,3599,2805,4031,1460, 856,7974,3600,7975,  # 7510
+2885,2963,7976,2886,3843,7977,4264, 632,2510, 875,3844,1697,3845,2291,7978,7979,  # 7526
+4544,3010,1239, 580,4545,4265,7980, 914, 936,2074,1190,4032,1039,2123,7981,7982,  # 7542
+7983,3386,1473,7984,1354,4266,3846,7985,2172,3064,4033, 915,3305,4267,4268,3306,  # 7558
+1605,1834,7986,2739, 398,3601,4269,3847,4034, 328,1912,2847,4035,3848,1331,4270,  # 7574
+3011, 937,4271,7987,3602,4036,4037,3387,2160,4546,3388, 524, 742, 538,3065,1012,  # 7590
+7988,7989,3849,2461,7990, 658,1103, 225,3850,7991,7992,4547,7993,4548,7994,3236,  # 7606
+1243,7995,4038, 963,2246,4549,7996,2705,3603,3161,7997,7998,2588,2327,7999,4550,  # 7622
+8000,8001,8002,3489,3307, 957,3389,2540,2032,1930,2927,2462, 870,2018,3604,1746,  # 7638
+2770,2771,2434,2463,8003,3851,8004,3723,3107,3724,3490,3390,3725,8005,1179,3066,  # 7654
+8006,3162,2373,4272,3726,2541,3163,3108,2740,4039,8007,3391,1556,2542,2292, 977,  # 7670
+2887,2033,4040,1205,3392,8008,1765,3393,3164,2124,1271,1689, 714,4551,3491,8009,  # 7686
+2328,3852, 533,4273,3605,2181, 617,8010,2464,3308,3492,2310,8011,8012,3165,8013,  # 7702
+8014,3853,1987, 618, 427,2641,3493,3394,8015,8016,1244,1690,8017,2806,4274,4552,  # 7718
+8018,3494,8019,8020,2279,1576, 473,3606,4275,3395, 972,8021,3607,8022,3067,8023,  # 7734
+8024,4553,4554,8025,3727,4041,4042,8026, 153,4555, 356,8027,1891,2888,4276,2143,  # 7750
+ 408, 803,2352,8028,3854,8029,4277,1646,2570,2511,4556,4557,3855,8030,3856,4278,  # 7766
+8031,2411,3396, 752,8032,8033,1961,2964,8034, 746,3012,2465,8035,4279,3728, 698,  # 7782
+4558,1892,4280,3608,2543,4559,3609,3857,8036,3166,3397,8037,1823,1302,4043,2706,  # 7798
+3858,1973,4281,8038,4282,3167, 823,1303,1288,1236,2848,3495,4044,3398, 774,3859,  # 7814
+8039,1581,4560,1304,2849,3860,4561,8040,2435,2161,1083,3237,4283,4045,4284, 344,  # 7830
+1173, 288,2311, 454,1683,8041,8042,1461,4562,4046,2589,8043,8044,4563, 985, 894,  # 7846
+8045,3399,3168,8046,1913,2928,3729,1988,8047,2110,1974,8048,4047,8049,2571,1194,  # 7862
+ 425,8050,4564,3169,1245,3730,4285,8051,8052,2850,8053, 636,4565,1855,3861, 760,  # 7878
+1799,8054,4286,2209,1508,4566,4048,1893,1684,2293,8055,8056,8057,4287,4288,2210,  # 7894
+ 479,8058,8059, 832,8060,4049,2489,8061,2965,2490,3731, 990,3109, 627,1814,2642,  # 7910
+4289,1582,4290,2125,2111,3496,4567,8062, 799,4291,3170,8063,4568,2112,1737,3013,  # 7926
+1018, 543, 754,4292,3309,1676,4569,4570,4050,8064,1489,8065,3497,8066,2614,2889,  # 7942
+4051,8067,8068,2966,8069,8070,8071,8072,3171,4571,4572,2182,1722,8073,3238,3239,  # 7958
+1842,3610,1715, 481, 365,1975,1856,8074,8075,1962,2491,4573,8076,2126,3611,3240,  # 7974
+ 433,1894,2063,2075,8077, 602,2741,8078,8079,8080,8081,8082,3014,1628,3400,8083,  # 7990
+3172,4574,4052,2890,4575,2512,8084,2544,2772,8085,8086,8087,3310,4576,2891,8088,  # 8006
+4577,8089,2851,4578,4579,1221,2967,4053,2513,8090,8091,8092,1867,1989,8093,8094,  # 8022
+8095,1895,8096,8097,4580,1896,4054, 318,8098,2094,4055,4293,8099,8100, 485,8101,  # 8038
+ 938,3862, 553,2670, 116,8102,3863,3612,8103,3498,2671,2773,3401,3311,2807,8104,  # 8054
+3613,2929,4056,1747,2930,2968,8105,8106, 207,8107,8108,2672,4581,2514,8109,3015,  # 8070
+ 890,3614,3864,8110,1877,3732,3402,8111,2183,2353,3403,1652,8112,8113,8114, 941,  # 8086
+2294, 208,3499,4057,2019, 330,4294,3865,2892,2492,3733,4295,8115,8116,8117,8118,  # 8102
+)
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euctwprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euctwprober.py
new file mode 100644
index 0000000..35669cc
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/euctwprober.py
@@ -0,0 +1,46 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCTWDistributionAnalysis
+from .mbcssm import EUCTW_SM_MODEL
+
+class EUCTWProber(MultiByteCharSetProber):
+    def __init__(self):
+        super(EUCTWProber, self).__init__()
+        self.coding_sm = CodingStateMachine(EUCTW_SM_MODEL)
+        self.distribution_analyzer = EUCTWDistributionAnalysis()
+        self.reset()
+
+    @property
+    def charset_name(self):
+        return "EUC-TW"
+
+    @property
+    def language(self):
+        return "Taiwan"
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/gb2312freq.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/gb2312freq.py
new file mode 100644
index 0000000..697837b
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/gb2312freq.py
@@ -0,0 +1,283 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# GB2312 most frequently used character table
+#
+# Char to FreqOrder table , from hz6763
+
+# 512  --> 0.79  -- 0.79
+# 1024 --> 0.92  -- 0.13
+# 2048 --> 0.98  -- 0.06
+# 6768 --> 1.00  -- 0.02
+#
+# Ideal Distribution Ratio = 0.79135/(1-0.79135) = 3.79
+# Random Distribution Ration = 512 / (3755 - 512) = 0.157
+#
+# Typical Distribution Ratio about 25% of Ideal one, still much higher that RDR
+
+GB2312_TYPICAL_DISTRIBUTION_RATIO = 0.9
+
+GB2312_TABLE_SIZE = 3760
+
+GB2312_CHAR_TO_FREQ_ORDER = (
+1671, 749,1443,2364,3924,3807,2330,3921,1704,3463,2691,1511,1515, 572,3191,2205,
+2361, 224,2558, 479,1711, 963,3162, 440,4060,1905,2966,2947,3580,2647,3961,3842,
+2204, 869,4207, 970,2678,5626,2944,2956,1479,4048, 514,3595, 588,1346,2820,3409,
+ 249,4088,1746,1873,2047,1774, 581,1813, 358,1174,3590,1014,1561,4844,2245, 670,
+1636,3112, 889,1286, 953, 556,2327,3060,1290,3141, 613, 185,3477,1367, 850,3820,
+1715,2428,2642,2303,2732,3041,2562,2648,3566,3946,1349, 388,3098,2091,1360,3585,
+ 152,1687,1539, 738,1559,  59,1232,2925,2267,1388,1249,1741,1679,2960, 151,1566,
+1125,1352,4271, 924,4296, 385,3166,4459, 310,1245,2850,  70,3285,2729,3534,3575,
+2398,3298,3466,1960,2265, 217,3647, 864,1909,2084,4401,2773,1010,3269,5152, 853,
+3051,3121,1244,4251,1895, 364,1499,1540,2313,1180,3655,2268, 562, 715,2417,3061,
+ 544, 336,3768,2380,1752,4075, 950, 280,2425,4382, 183,2759,3272, 333,4297,2155,
+1688,2356,1444,1039,4540, 736,1177,3349,2443,2368,2144,2225, 565, 196,1482,3406,
+ 927,1335,4147, 692, 878,1311,1653,3911,3622,1378,4200,1840,2969,3149,2126,1816,
+2534,1546,2393,2760, 737,2494,  13, 447, 245,2747,  38,2765,2129,2589,1079, 606,
+ 360, 471,3755,2890, 404, 848, 699,1785,1236, 370,2221,1023,3746,2074,2026,2023,
+2388,1581,2119, 812,1141,3091,2536,1519, 804,2053, 406,1596,1090, 784, 548,4414,
+1806,2264,2936,1100, 343,4114,5096, 622,3358, 743,3668,1510,1626,5020,3567,2513,
+3195,4115,5627,2489,2991,  24,2065,2697,1087,2719,  48,1634, 315,  68, 985,2052,
+ 198,2239,1347,1107,1439, 597,2366,2172, 871,3307, 919,2487,2790,1867, 236,2570,
+1413,3794, 906,3365,3381,1701,1982,1818,1524,2924,1205, 616,2586,2072,2004, 575,
+ 253,3099,  32,1365,1182, 197,1714,2454,1201, 554,3388,3224,2748, 756,2587, 250,
+2567,1507,1517,3529,1922,2761,2337,3416,1961,1677,2452,2238,3153, 615, 911,1506,
+1474,2495,1265,1906,2749,3756,3280,2161, 898,2714,1759,3450,2243,2444, 563,  26,
+3286,2266,3769,3344,2707,3677, 611,1402, 531,1028,2871,4548,1375, 261,2948, 835,
+1190,4134, 353, 840,2684,1900,3082,1435,2109,1207,1674, 329,1872,2781,4055,2686,
+2104, 608,3318,2423,2957,2768,1108,3739,3512,3271,3985,2203,1771,3520,1418,2054,
+1681,1153, 225,1627,2929, 162,2050,2511,3687,1954, 124,1859,2431,1684,3032,2894,
+ 585,4805,3969,2869,2704,2088,2032,2095,3656,2635,4362,2209, 256, 518,2042,2105,
+3777,3657, 643,2298,1148,1779, 190, 989,3544, 414,  11,2135,2063,2979,1471, 403,
+3678, 126, 770,1563, 671,2499,3216,2877, 600,1179, 307,2805,4937,1268,1297,2694,
+ 252,4032,1448,1494,1331,1394, 127,2256, 222,1647,1035,1481,3056,1915,1048, 873,
+3651, 210,  33,1608,2516, 200,1520, 415, 102,   0,3389,1287, 817,  91,3299,2940,
+ 836,1814, 549,2197,1396,1669,2987,3582,2297,2848,4528,1070, 687,  20,1819, 121,
+1552,1364,1461,1968,2617,3540,2824,2083, 177, 948,4938,2291, 110,4549,2066, 648,
+3359,1755,2110,2114,4642,4845,1693,3937,3308,1257,1869,2123, 208,1804,3159,2992,
+2531,2549,3361,2418,1350,2347,2800,2568,1291,2036,2680,  72, 842,1990, 212,1233,
+1154,1586,  75,2027,3410,4900,1823,1337,2710,2676, 728,2810,1522,3026,4995, 157,
+ 755,1050,4022, 710, 785,1936,2194,2085,1406,2777,2400, 150,1250,4049,1206, 807,
+1910, 534, 529,3309,1721,1660, 274,  39,2827, 661,2670,1578, 925,3248,3815,1094,
+4278,4901,4252,  41,1150,3747,2572,2227,4501,3658,4902,3813,3357,3617,2884,2258,
+ 887, 538,4187,3199,1294,2439,3042,2329,2343,2497,1255, 107, 543,1527, 521,3478,
+3568, 194,5062,  15, 961,3870,1241,1192,2664,  66,5215,3260,2111,1295,1127,2152,
+3805,4135, 901,1164,1976, 398,1278, 530,1460, 748, 904,1054,1966,1426,  53,2909,
+ 509, 523,2279,1534, 536,1019, 239,1685, 460,2353, 673,1065,2401,3600,4298,2272,
+1272,2363, 284,1753,3679,4064,1695,  81, 815,2677,2757,2731,1386, 859, 500,4221,
+2190,2566, 757,1006,2519,2068,1166,1455, 337,2654,3203,1863,1682,1914,3025,1252,
+1409,1366, 847, 714,2834,2038,3209, 964,2970,1901, 885,2553,1078,1756,3049, 301,
+1572,3326, 688,2130,1996,2429,1805,1648,2930,3421,2750,3652,3088, 262,1158,1254,
+ 389,1641,1812, 526,1719, 923,2073,1073,1902, 468, 489,4625,1140, 857,2375,3070,
+3319,2863, 380, 116,1328,2693,1161,2244, 273,1212,1884,2769,3011,1775,1142, 461,
+3066,1200,2147,2212, 790, 702,2695,4222,1601,1058, 434,2338,5153,3640,  67,2360,
+4099,2502, 618,3472,1329, 416,1132, 830,2782,1807,2653,3211,3510,1662, 192,2124,
+ 296,3979,1739,1611,3684,  23, 118, 324, 446,1239,1225, 293,2520,3814,3795,2535,
+3116,  17,1074, 467,2692,2201, 387,2922,  45,1326,3055,1645,3659,2817, 958, 243,
+1903,2320,1339,2825,1784,3289, 356, 576, 865,2315,2381,3377,3916,1088,3122,1713,
+1655, 935, 628,4689,1034,1327, 441, 800, 720, 894,1979,2183,1528,5289,2702,1071,
+4046,3572,2399,1571,3281,  79, 761,1103, 327, 134, 758,1899,1371,1615, 879, 442,
+ 215,2605,2579, 173,2048,2485,1057,2975,3317,1097,2253,3801,4263,1403,1650,2946,
+ 814,4968,3487,1548,2644,1567,1285,   2, 295,2636,  97, 946,3576, 832, 141,4257,
+3273, 760,3821,3521,3156,2607, 949,1024,1733,1516,1803,1920,2125,2283,2665,3180,
+1501,2064,3560,2171,1592, 803,3518,1416, 732,3897,4258,1363,1362,2458, 119,1427,
+ 602,1525,2608,1605,1639,3175, 694,3064,  10, 465,  76,2000,4846,4208, 444,3781,
+1619,3353,2206,1273,3796, 740,2483, 320,1723,2377,3660,2619,1359,1137,1762,1724,
+2345,2842,1850,1862, 912, 821,1866, 612,2625,1735,2573,3369,1093, 844,  89, 937,
+ 930,1424,3564,2413,2972,1004,3046,3019,2011, 711,3171,1452,4178, 428, 801,1943,
+ 432, 445,2811, 206,4136,1472, 730, 349,  73, 397,2802,2547, 998,1637,1167, 789,
+ 396,3217, 154,1218, 716,1120,1780,2819,4826,1931,3334,3762,2139,1215,2627, 552,
+3664,3628,3232,1405,2383,3111,1356,2652,3577,3320,3101,1703, 640,1045,1370,1246,
+4996, 371,1575,2436,1621,2210, 984,4033,1734,2638,  16,4529, 663,2755,3255,1451,
+3917,2257,1253,1955,2234,1263,2951, 214,1229, 617, 485, 359,1831,1969, 473,2310,
+ 750,2058, 165,  80,2864,2419, 361,4344,2416,2479,1134, 796,3726,1266,2943, 860,
+2715, 938, 390,2734,1313,1384, 248, 202, 877,1064,2854, 522,3907, 279,1602, 297,
+2357, 395,3740, 137,2075, 944,4089,2584,1267,3802,  62,1533,2285, 178, 176, 780,
+2440, 201,3707, 590, 478,1560,4354,2117,1075,  30,  74,4643,4004,1635,1441,2745,
+ 776,2596, 238,1077,1692,1912,2844, 605, 499,1742,3947, 241,3053, 980,1749, 936,
+2640,4511,2582, 515,1543,2162,5322,2892,2993, 890,2148,1924, 665,1827,3581,1032,
+ 968,3163, 339,1044,1896, 270, 583,1791,1720,4367,1194,3488,3669,  43,2523,1657,
+ 163,2167, 290,1209,1622,3378, 550, 634,2508,2510, 695,2634,2384,2512,1476,1414,
+ 220,1469,2341,2138,2852,3183,2900,4939,2865,3502,1211,3680, 854,3227,1299,2976,
+3172, 186,2998,1459, 443,1067,3251,1495, 321,1932,3054, 909, 753,1410,1828, 436,
+2441,1119,1587,3164,2186,1258, 227, 231,1425,1890,3200,3942, 247, 959, 725,5254,
+2741, 577,2158,2079, 929, 120, 174, 838,2813, 591,1115, 417,2024,  40,3240,1536,
+1037, 291,4151,2354, 632,1298,2406,2500,3535,1825,1846,3451, 205,1171, 345,4238,
+  18,1163, 811, 685,2208,1217, 425,1312,1508,1175,4308,2552,1033, 587,1381,3059,
+2984,3482, 340,1316,4023,3972, 792,3176, 519, 777,4690, 918, 933,4130,2981,3741,
+  90,3360,2911,2200,5184,4550, 609,3079,2030, 272,3379,2736, 363,3881,1130,1447,
+ 286, 779, 357,1169,3350,3137,1630,1220,2687,2391, 747,1277,3688,2618,2682,2601,
+1156,3196,5290,4034,3102,1689,3596,3128, 874, 219,2783, 798, 508,1843,2461, 269,
+1658,1776,1392,1913,2983,3287,2866,2159,2372, 829,4076,  46,4253,2873,1889,1894,
+ 915,1834,1631,2181,2318, 298, 664,2818,3555,2735, 954,3228,3117, 527,3511,2173,
+ 681,2712,3033,2247,2346,3467,1652, 155,2164,3382, 113,1994, 450, 899, 494, 994,
+1237,2958,1875,2336,1926,3727, 545,1577,1550, 633,3473, 204,1305,3072,2410,1956,
+2471, 707,2134, 841,2195,2196,2663,3843,1026,4940, 990,3252,4997, 368,1092, 437,
+3212,3258,1933,1829, 675,2977,2893, 412, 943,3723,4644,3294,3283,2230,2373,5154,
+2389,2241,2661,2323,1404,2524, 593, 787, 677,3008,1275,2059, 438,2709,2609,2240,
+2269,2246,1446,  36,1568,1373,3892,1574,2301,1456,3962, 693,2276,5216,2035,1143,
+2720,1919,1797,1811,2763,4137,2597,1830,1699,1488,1198,2090, 424,1694, 312,3634,
+3390,4179,3335,2252,1214, 561,1059,3243,2295,2561, 975,5155,2321,2751,3772, 472,
+1537,3282,3398,1047,2077,2348,2878,1323,3340,3076, 690,2906,  51, 369, 170,3541,
+1060,2187,2688,3670,2541,1083,1683, 928,3918, 459, 109,4427, 599,3744,4286, 143,
+2101,2730,2490,  82,1588,3036,2121, 281,1860, 477,4035,1238,2812,3020,2716,3312,
+1530,2188,2055,1317, 843, 636,1808,1173,3495, 649, 181,1002, 147,3641,1159,2414,
+3750,2289,2795, 813,3123,2610,1136,4368,   5,3391,4541,2174, 420, 429,1728, 754,
+1228,2115,2219, 347,2223,2733, 735,1518,3003,2355,3134,1764,3948,3329,1888,2424,
+1001,1234,1972,3321,3363,1672,1021,1450,1584, 226, 765, 655,2526,3404,3244,2302,
+3665, 731, 594,2184, 319,1576, 621, 658,2656,4299,2099,3864,1279,2071,2598,2739,
+ 795,3086,3699,3908,1707,2352,2402,1382,3136,2475,1465,4847,3496,3865,1085,3004,
+2591,1084, 213,2287,1963,3565,2250, 822, 793,4574,3187,1772,1789,3050, 595,1484,
+1959,2770,1080,2650, 456, 422,2996, 940,3322,4328,4345,3092,2742, 965,2784, 739,
+4124, 952,1358,2498,2949,2565, 332,2698,2378, 660,2260,2473,4194,3856,2919, 535,
+1260,2651,1208,1428,1300,1949,1303,2942, 433,2455,2450,1251,1946, 614,1269, 641,
+1306,1810,2737,3078,2912, 564,2365,1419,1415,1497,4460,2367,2185,1379,3005,1307,
+3218,2175,1897,3063, 682,1157,4040,4005,1712,1160,1941,1399, 394, 402,2952,1573,
+1151,2986,2404, 862, 299,2033,1489,3006, 346, 171,2886,3401,1726,2932, 168,2533,
+  47,2507,1030,3735,1145,3370,1395,1318,1579,3609,4560,2857,4116,1457,2529,1965,
+ 504,1036,2690,2988,2405, 745,5871, 849,2397,2056,3081, 863,2359,3857,2096,  99,
+1397,1769,2300,4428,1643,3455,1978,1757,3718,1440,  35,4879,3742,1296,4228,2280,
+ 160,5063,1599,2013, 166, 520,3479,1646,3345,3012, 490,1937,1545,1264,2182,2505,
+1096,1188,1369,1436,2421,1667,2792,2460,1270,2122, 727,3167,2143, 806,1706,1012,
+1800,3037, 960,2218,1882, 805, 139,2456,1139,1521, 851,1052,3093,3089, 342,2039,
+ 744,5097,1468,1502,1585,2087, 223, 939, 326,2140,2577, 892,2481,1623,4077, 982,
+3708, 135,2131,  87,2503,3114,2326,1106, 876,1616, 547,2997,2831,2093,3441,4530,
+4314,   9,3256,4229,4148, 659,1462,1986,1710,2046,2913,2231,4090,4880,5255,3392,
+3274,1368,3689,4645,1477, 705,3384,3635,1068,1529,2941,1458,3782,1509, 100,1656,
+2548, 718,2339, 408,1590,2780,3548,1838,4117,3719,1345,3530, 717,3442,2778,3220,
+2898,1892,4590,3614,3371,2043,1998,1224,3483, 891, 635, 584,2559,3355, 733,1766,
+1729,1172,3789,1891,2307, 781,2982,2271,1957,1580,5773,2633,2005,4195,3097,1535,
+3213,1189,1934,5693,3262, 586,3118,1324,1598, 517,1564,2217,1868,1893,4445,3728,
+2703,3139,1526,1787,1992,3882,2875,1549,1199,1056,2224,1904,2711,5098,4287, 338,
+1993,3129,3489,2689,1809,2815,1997, 957,1855,3898,2550,3275,3057,1105,1319, 627,
+1505,1911,1883,3526, 698,3629,3456,1833,1431, 746,  77,1261,2017,2296,1977,1885,
+ 125,1334,1600, 525,1798,1109,2222,1470,1945, 559,2236,1186,3443,2476,1929,1411,
+2411,3135,1777,3372,2621,1841,1613,3229, 668,1430,1839,2643,2916, 195,1989,2671,
+2358,1387, 629,3205,2293,5256,4439, 123,1310, 888,1879,4300,3021,3605,1003,1162,
+3192,2910,2010, 140,2395,2859,  55,1082,2012,2901, 662, 419,2081,1438, 680,2774,
+4654,3912,1620,1731,1625,5035,4065,2328, 512,1344, 802,5443,2163,2311,2537, 524,
+3399,  98,1155,2103,1918,2606,3925,2816,1393,2465,1504,3773,2177,3963,1478,4346,
+ 180,1113,4655,3461,2028,1698, 833,2696,1235,1322,1594,4408,3623,3013,3225,2040,
+3022, 541,2881, 607,3632,2029,1665,1219, 639,1385,1686,1099,2803,3231,1938,3188,
+2858, 427, 676,2772,1168,2025, 454,3253,2486,3556, 230,1950, 580, 791,1991,1280,
+1086,1974,2034, 630, 257,3338,2788,4903,1017,  86,4790, 966,2789,1995,1696,1131,
+ 259,3095,4188,1308, 179,1463,5257, 289,4107,1248,  42,3413,1725,2288, 896,1947,
+ 774,4474,4254, 604,3430,4264, 392,2514,2588, 452, 237,1408,3018, 988,4531,1970,
+3034,3310, 540,2370,1562,1288,2990, 502,4765,1147,   4,1853,2708, 207, 294,2814,
+4078,2902,2509, 684,  34,3105,3532,2551, 644, 709,2801,2344, 573,1727,3573,3557,
+2021,1081,3100,4315,2100,3681, 199,2263,1837,2385, 146,3484,1195,2776,3949, 997,
+1939,3973,1008,1091,1202,1962,1847,1149,4209,5444,1076, 493, 117,5400,2521, 972,
+1490,2934,1796,4542,2374,1512,2933,2657, 413,2888,1135,2762,2314,2156,1355,2369,
+ 766,2007,2527,2170,3124,2491,2593,2632,4757,2437, 234,3125,3591,1898,1750,1376,
+1942,3468,3138, 570,2127,2145,3276,4131, 962, 132,1445,4196,  19, 941,3624,3480,
+3366,1973,1374,4461,3431,2629, 283,2415,2275, 808,2887,3620,2112,2563,1353,3610,
+ 955,1089,3103,1053,  96,  88,4097, 823,3808,1583, 399, 292,4091,3313, 421,1128,
+ 642,4006, 903,2539,1877,2082, 596,  29,4066,1790, 722,2157, 130, 995,1569, 769,
+1485, 464, 513,2213, 288,1923,1101,2453,4316, 133, 486,2445,  50, 625, 487,2207,
+  57, 423, 481,2962, 159,3729,1558, 491, 303, 482, 501, 240,2837, 112,3648,2392,
+1783, 362,   8,3433,3422, 610,2793,3277,1390,1284,1654,  21,3823, 734, 367, 623,
+ 193, 287, 374,1009,1483, 816, 476, 313,2255,2340,1262,2150,2899,1146,2581, 782,
+2116,1659,2018,1880, 255,3586,3314,1110,2867,2137,2564, 986,2767,5185,2006, 650,
+ 158, 926, 762, 881,3157,2717,2362,3587, 306,3690,3245,1542,3077,2427,1691,2478,
+2118,2985,3490,2438, 539,2305, 983, 129,1754, 355,4201,2386, 827,2923, 104,1773,
+2838,2771, 411,2905,3919, 376, 767, 122,1114, 828,2422,1817,3506, 266,3460,1007,
+1609,4998, 945,2612,4429,2274, 726,1247,1964,2914,2199,2070,4002,4108, 657,3323,
+1422, 579, 455,2764,4737,1222,2895,1670, 824,1223,1487,2525, 558, 861,3080, 598,
+2659,2515,1967, 752,2583,2376,2214,4180, 977, 704,2464,4999,2622,4109,1210,2961,
+ 819,1541, 142,2284,  44, 418, 457,1126,3730,4347,4626,1644,1876,3671,1864, 302,
+1063,5694, 624, 723,1984,3745,1314,1676,2488,1610,1449,3558,3569,2166,2098, 409,
+1011,2325,3704,2306, 818,1732,1383,1824,1844,3757, 999,2705,3497,1216,1423,2683,
+2426,2954,2501,2726,2229,1475,2554,5064,1971,1794,1666,2014,1343, 783, 724, 191,
+2434,1354,2220,5065,1763,2752,2472,4152, 131, 175,2885,3434,  92,1466,4920,2616,
+3871,3872,3866, 128,1551,1632, 669,1854,3682,4691,4125,1230, 188,2973,3290,1302,
+1213, 560,3266, 917, 763,3909,3249,1760, 868,1958, 764,1782,2097, 145,2277,3774,
+4462,  64,1491,3062, 971,2132,3606,2442, 221,1226,1617, 218, 323,1185,3207,3147,
+ 571, 619,1473,1005,1744,2281, 449,1887,2396,3685, 275, 375,3816,1743,3844,3731,
+ 845,1983,2350,4210,1377, 773, 967,3499,3052,3743,2725,4007,1697,1022,3943,1464,
+3264,2855,2722,1952,1029,2839,2467,  84,4383,2215, 820,1391,2015,2448,3672, 377,
+1948,2168, 797,2545,3536,2578,2645,  94,2874,1678, 405,1259,3071, 771, 546,1315,
+ 470,1243,3083, 895,2468, 981, 969,2037, 846,4181, 653,1276,2928,  14,2594, 557,
+3007,2474, 156, 902,1338,1740,2574, 537,2518, 973,2282,2216,2433,1928, 138,2903,
+1293,2631,1612, 646,3457, 839,2935, 111, 496,2191,2847, 589,3186, 149,3994,2060,
+4031,2641,4067,3145,1870,  37,3597,2136,1025,2051,3009,3383,3549,1121,1016,3261,
+1301, 251,2446,2599,2153, 872,3246, 637, 334,3705, 831, 884, 921,3065,3140,4092,
+2198,1944, 246,2964, 108,2045,1152,1921,2308,1031, 203,3173,4170,1907,3890, 810,
+1401,2003,1690, 506, 647,1242,2828,1761,1649,3208,2249,1589,3709,2931,5156,1708,
+ 498, 666,2613, 834,3817,1231, 184,2851,1124, 883,3197,2261,3710,1765,1553,2658,
+1178,2639,2351,  93,1193, 942,2538,2141,4402, 235,1821, 870,1591,2192,1709,1871,
+3341,1618,4126,2595,2334, 603, 651,  69, 701, 268,2662,3411,2555,1380,1606, 503,
+ 448, 254,2371,2646, 574,1187,2309,1770, 322,2235,1292,1801, 305, 566,1133, 229,
+2067,2057, 706, 167, 483,2002,2672,3295,1820,3561,3067, 316, 378,2746,3452,1112,
+ 136,1981, 507,1651,2917,1117, 285,4591, 182,2580,3522,1304, 335,3303,1835,2504,
+1795,1792,2248, 674,1018,2106,2449,1857,2292,2845, 976,3047,1781,2600,2727,1389,
+1281,  52,3152, 153, 265,3950, 672,3485,3951,4463, 430,1183, 365, 278,2169,  27,
+1407,1336,2304, 209,1340,1730,2202,1852,2403,2883, 979,1737,1062, 631,2829,2542,
+3876,2592, 825,2086,2226,3048,3625, 352,1417,3724, 542, 991, 431,1351,3938,1861,
+2294, 826,1361,2927,3142,3503,1738, 463,2462,2723, 582,1916,1595,2808, 400,3845,
+3891,2868,3621,2254,  58,2492,1123, 910,2160,2614,1372,1603,1196,1072,3385,1700,
+3267,1980, 696, 480,2430, 920, 799,1570,2920,1951,2041,4047,2540,1321,4223,2469,
+3562,2228,1271,2602, 401,2833,3351,2575,5157, 907,2312,1256, 410, 263,3507,1582,
+ 996, 678,1849,2316,1480, 908,3545,2237, 703,2322, 667,1826,2849,1531,2604,2999,
+2407,3146,2151,2630,1786,3711, 469,3542, 497,3899,2409, 858, 837,4446,3393,1274,
+ 786, 620,1845,2001,3311, 484, 308,3367,1204,1815,3691,2332,1532,2557,1842,2020,
+2724,1927,2333,4440, 567,  22,1673,2728,4475,1987,1858,1144,1597, 101,1832,3601,
+  12, 974,3783,4391, 951,1412,   1,3720, 453,4608,4041, 528,1041,1027,3230,2628,
+1129, 875,1051,3291,1203,2262,1069,2860,2799,2149,2615,3278, 144,1758,3040,  31,
+ 475,1680, 366,2685,3184, 311,1642,4008,2466,5036,1593,1493,2809, 216,1420,1668,
+ 233, 304,2128,3284, 232,1429,1768,1040,2008,3407,2740,2967,2543, 242,2133, 778,
+1565,2022,2620, 505,2189,2756,1098,2273, 372,1614, 708, 553,2846,2094,2278, 169,
+3626,2835,4161, 228,2674,3165, 809,1454,1309, 466,1705,1095, 900,3423, 880,2667,
+3751,5258,2317,3109,2571,4317,2766,1503,1342, 866,4447,1118,  63,2076, 314,1881,
+1348,1061, 172, 978,3515,1747, 532, 511,3970,   6, 601, 905,2699,3300,1751, 276,
+1467,3725,2668,  65,4239,2544,2779,2556,1604, 578,2451,1802, 992,2331,2624,1320,
+3446, 713,1513,1013, 103,2786,2447,1661, 886,1702, 916, 654,3574,2031,1556, 751,
+2178,2821,2179,1498,1538,2176, 271, 914,2251,2080,1325, 638,1953,2937,3877,2432,
+2754,  95,3265,1716, 260,1227,4083, 775, 106,1357,3254, 426,1607, 555,2480, 772,
+1985, 244,2546, 474, 495,1046,2611,1851,2061,  71,2089,1675,2590, 742,3758,2843,
+3222,1433, 267,2180,2576,2826,2233,2092,3913,2435, 956,1745,3075, 856,2113,1116,
+ 451,   3,1988,2896,1398, 993,2463,1878,2049,1341,2718,2721,2870,2108, 712,2904,
+4363,2753,2324, 277,2872,2349,2649, 384, 987, 435, 691,3000, 922, 164,3939, 652,
+1500,1184,4153,2482,3373,2165,4848,2335,3775,3508,3154,2806,2830,1554,2102,1664,
+2530,1434,2408, 893,1547,2623,3447,2832,2242,2532,3169,2856,3223,2078,  49,3770,
+3469, 462, 318, 656,2259,3250,3069, 679,1629,2758, 344,1138,1104,3120,1836,1283,
+3115,2154,1437,4448, 934, 759,1999, 794,2862,1038, 533,2560,1722,2342, 855,2626,
+1197,1663,4476,3127,  85,4240,2528,  25,1111,1181,3673, 407,3470,4561,2679,2713,
+ 768,1925,2841,3986,1544,1165, 932, 373,1240,2146,1930,2673, 721,4766, 354,4333,
+ 391,2963, 187,  61,3364,1442,1102, 330,1940,1767, 341,3809,4118, 393,2496,2062,
+2211, 105, 331, 300, 439, 913,1332, 626, 379,3304,1557, 328, 689,3952, 309,1555,
+ 931, 317,2517,3027, 325, 569, 686,2107,3084,  60,1042,1333,2794, 264,3177,4014,
+1628, 258,3712,   7,4464,1176,1043,1778, 683, 114,1975,  78,1492, 383,1886, 510,
+ 386, 645,5291,2891,2069,3305,4138,3867,2939,2603,2493,1935,1066,1848,3588,1015,
+1282,1289,4609, 697,1453,3044,2666,3611,1856,2412,  54, 719,1330, 568,3778,2459,
+1748, 788, 492, 551,1191,1000, 488,3394,3763, 282,1799, 348,2016,1523,3155,2390,
+1049, 382,2019,1788,1170, 729,2968,3523, 897,3926,2785,2938,3292, 350,2319,3238,
+1718,1717,2655,3453,3143,4465, 161,2889,2980,2009,1421,  56,1908,1640,2387,2232,
+1917,1874,2477,4921, 148,  83,3438, 592,4245,2882,1822,1055, 741, 115,1496,1624,
+ 381,1638,4592,1020, 516,3214, 458, 947,4575,1432, 211,1514,2926,1865,2142, 189,
+ 852,1221,1400,1486, 882,2299,4036, 351,  28,1122, 700,6479,6480,6481,6482,6483,  #last 512
+)
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/gb2312prober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/gb2312prober.py
new file mode 100644
index 0000000..8446d2d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/gb2312prober.py
@@ -0,0 +1,46 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import GB2312DistributionAnalysis
+from .mbcssm import GB2312_SM_MODEL
+
+class GB2312Prober(MultiByteCharSetProber):
+    def __init__(self):
+        super(GB2312Prober, self).__init__()
+        self.coding_sm = CodingStateMachine(GB2312_SM_MODEL)
+        self.distribution_analyzer = GB2312DistributionAnalysis()
+        self.reset()
+
+    @property
+    def charset_name(self):
+        return "GB2312"
+
+    @property
+    def language(self):
+        return "Chinese"
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/hebrewprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/hebrewprober.py
new file mode 100644
index 0000000..b0e1bf4
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/hebrewprober.py
@@ -0,0 +1,292 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+#          Shy Shalom
+# Portions created by the Initial Developer are Copyright (C) 2005
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetprober import CharSetProber
+from .enums import ProbingState
+
+# This prober doesn't actually recognize a language or a charset.
+# It is a helper prober for the use of the Hebrew model probers
+
+### General ideas of the Hebrew charset recognition ###
+#
+# Four main charsets exist in Hebrew:
+# "ISO-8859-8" - Visual Hebrew
+# "windows-1255" - Logical Hebrew
+# "ISO-8859-8-I" - Logical Hebrew
+# "x-mac-hebrew" - ?? Logical Hebrew ??
+#
+# Both "ISO" charsets use a completely identical set of code points, whereas
+# "windows-1255" and "x-mac-hebrew" are two different proper supersets of
+# these code points. windows-1255 defines additional characters in the range
+# 0x80-0x9F as some misc punctuation marks as well as some Hebrew-specific
+# diacritics and additional 'Yiddish' ligature letters in the range 0xc0-0xd6.
+# x-mac-hebrew defines similar additional code points but with a different
+# mapping.
+#
+# As far as an average Hebrew text with no diacritics is concerned, all four
+# charsets are identical with respect to code points. Meaning that for the
+# main Hebrew alphabet, all four map the same values to all 27 Hebrew letters
+# (including final letters).
+#
+# The dominant difference between these charsets is their directionality.
+# "Visual" directionality means that the text is ordered as if the renderer is
+# not aware of a BIDI rendering algorithm. The renderer sees the text and
+# draws it from left to right. The text itself when ordered naturally is read
+# backwards. A buffer of Visual Hebrew generally looks like so:
+# "[last word of first line spelled backwards] [whole line ordered backwards
+# and spelled backwards] [first word of first line spelled backwards]
+# [end of line] [last word of second line] ... etc' "
+# adding punctuation marks, numbers and English text to visual text is
+# naturally also "visual" and from left to right.
+#
+# "Logical" directionality means the text is ordered "naturally" according to
+# the order it is read. It is the responsibility of the renderer to display
+# the text from right to left. A BIDI algorithm is used to place general
+# punctuation marks, numbers and English text in the text.
+#
+# Texts in x-mac-hebrew are almost impossible to find on the Internet. From
+# what little evidence I could find, it seems that its general directionality
+# is Logical.
+#
+# To sum up all of the above, the Hebrew probing mechanism knows about two
+# charsets:
+# Visual Hebrew - "ISO-8859-8" - backwards text - Words and sentences are
+#    backwards while line order is natural. For charset recognition purposes
+#    the line order is unimportant (In fact, for this implementation, even
+#    word order is unimportant).
+# Logical Hebrew - "windows-1255" - normal, naturally ordered text.
+#
+# "ISO-8859-8-I" is a subset of windows-1255 and doesn't need to be
+#    specifically identified.
+# "x-mac-hebrew" is also identified as windows-1255. A text in x-mac-hebrew
+#    that contain special punctuation marks or diacritics is displayed with
+#    some unconverted characters showing as question marks. This problem might
+#    be corrected using another model prober for x-mac-hebrew. Due to the fact
+#    that x-mac-hebrew texts are so rare, writing another model prober isn't
+#    worth the effort and performance hit.
+#
+#### The Prober ####
+#
+# The prober is divided between two SBCharSetProbers and a HebrewProber,
+# all of which are managed, created, fed data, inquired and deleted by the
+# SBCSGroupProber. The two SBCharSetProbers identify that the text is in
+# fact some kind of Hebrew, Logical or Visual. The final decision about which
+# one is it is made by the HebrewProber by combining final-letter scores
+# with the scores of the two SBCharSetProbers to produce a final answer.
+#
+# The SBCSGroupProber is responsible for stripping the original text of HTML
+# tags, English characters, numbers, low-ASCII punctuation characters, spaces
+# and new lines. It reduces any sequence of such characters to a single space.
+# The buffer fed to each prober in the SBCS group prober is pure text in
+# high-ASCII.
+# The two SBCharSetProbers (model probers) share the same language model:
+# Win1255Model.
+# The first SBCharSetProber uses the model normally as any other
+# SBCharSetProber does, to recognize windows-1255, upon which this model was
+# built. The second SBCharSetProber is told to make the pair-of-letter
+# lookup in the language model backwards. This in practice exactly simulates
+# a visual Hebrew model using the windows-1255 logical Hebrew model.
+#
+# The HebrewProber is not using any language model. All it does is look for
+# final-letter evidence suggesting the text is either logical Hebrew or visual
+# Hebrew. Disjointed from the model probers, the results of the HebrewProber
+# alone are meaningless. HebrewProber always returns 0.00 as confidence
+# since it never identifies a charset by itself. Instead, the pointer to the
+# HebrewProber is passed to the model probers as a helper "Name Prober".
+# When the Group prober receives a positive identification from any prober,
+# it asks for the name of the charset identified. If the prober queried is a
+# Hebrew model prober, the model prober forwards the call to the
+# HebrewProber to make the final decision. In the HebrewProber, the
+# decision is made according to the final-letters scores maintained and Both
+# model probers scores. The answer is returned in the form of the name of the
+# charset identified, either "windows-1255" or "ISO-8859-8".
+
+class HebrewProber(CharSetProber):
+    # windows-1255 / ISO-8859-8 code points of interest
+    FINAL_KAF = 0xea
+    NORMAL_KAF = 0xeb
+    FINAL_MEM = 0xed
+    NORMAL_MEM = 0xee
+    FINAL_NUN = 0xef
+    NORMAL_NUN = 0xf0
+    FINAL_PE = 0xf3
+    NORMAL_PE = 0xf4
+    FINAL_TSADI = 0xf5
+    NORMAL_TSADI = 0xf6
+
+    # Minimum Visual vs Logical final letter score difference.
+    # If the difference is below this, don't rely solely on the final letter score
+    # distance.
+    MIN_FINAL_CHAR_DISTANCE = 5
+
+    # Minimum Visual vs Logical model score difference.
+    # If the difference is below this, don't rely at all on the model score
+    # distance.
+    MIN_MODEL_DISTANCE = 0.01
+
+    VISUAL_HEBREW_NAME = "ISO-8859-8"
+    LOGICAL_HEBREW_NAME = "windows-1255"
+
+    def __init__(self):
+        super(HebrewProber, self).__init__()
+        self._final_char_logical_score = None
+        self._final_char_visual_score = None
+        self._prev = None
+        self._before_prev = None
+        self._logical_prober = None
+        self._visual_prober = None
+        self.reset()
+
+    def reset(self):
+        self._final_char_logical_score = 0
+        self._final_char_visual_score = 0
+        # The two last characters seen in the previous buffer,
+        # mPrev and mBeforePrev are initialized to space in order to simulate
+        # a word delimiter at the beginning of the data
+        self._prev = ' '
+        self._before_prev = ' '
+        # These probers are owned by the group prober.
+
+    def set_model_probers(self, logicalProber, visualProber):
+        self._logical_prober = logicalProber
+        self._visual_prober = visualProber
+
+    def is_final(self, c):
+        return c in [self.FINAL_KAF, self.FINAL_MEM, self.FINAL_NUN,
+                     self.FINAL_PE, self.FINAL_TSADI]
+
+    def is_non_final(self, c):
+        # The normal Tsadi is not a good Non-Final letter due to words like
+        # 'lechotet' (to chat) containing an apostrophe after the tsadi. This
+        # apostrophe is converted to a space in FilterWithoutEnglishLetters
+        # causing the Non-Final tsadi to appear at an end of a word even
+        # though this is not the case in the original text.
+        # The letters Pe and Kaf rarely display a related behavior of not being
+        # a good Non-Final letter. Words like 'Pop', 'Winamp' and 'Mubarak'
+        # for example legally end with a Non-Final Pe or Kaf. However, the
+        # benefit of these letters as Non-Final letters outweighs the damage
+        # since these words are quite rare.
+        return c in [self.NORMAL_KAF, self.NORMAL_MEM,
+                     self.NORMAL_NUN, self.NORMAL_PE]
+
+    def feed(self, byte_str):
+        # Final letter analysis for logical-visual decision.
+        # Look for evidence that the received buffer is either logical Hebrew
+        # or visual Hebrew.
+        # The following cases are checked:
+        # 1) A word longer than 1 letter, ending with a final letter. This is
+        #    an indication that the text is laid out "naturally" since the
+        #    final letter really appears at the end. +1 for logical score.
+        # 2) A word longer than 1 letter, ending with a Non-Final letter. In
+        #    normal Hebrew, words ending with Kaf, Mem, Nun, Pe or Tsadi,
+        #    should not end with the Non-Final form of that letter. Exceptions
+        #    to this rule are mentioned above in isNonFinal(). This is an
+        #    indication that the text is laid out backwards. +1 for visual
+        #    score
+        # 3) A word longer than 1 letter, starting with a final letter. Final
+        #    letters should not appear at the beginning of a word. This is an
+        #    indication that the text is laid out backwards. +1 for visual
+        #    score.
+        #
+        # The visual score and logical score are accumulated throughout the
+        # text and are finally checked against each other in GetCharSetName().
+        # No checking for final letters in the middle of words is done since
+        # that case is not an indication for either Logical or Visual text.
+        #
+        # We automatically filter out all 7-bit characters (replace them with
+        # spaces) so the word boundary detection works properly. [MAP]
+
+        if self.state == ProbingState.NOT_ME:
+            # Both model probers say it's not them. No reason to continue.
+            return ProbingState.NOT_ME
+
+        byte_str = self.filter_high_byte_only(byte_str)
+
+        for cur in byte_str:
+            if cur == ' ':
+                # We stand on a space - a word just ended
+                if self._before_prev != ' ':
+                    # next-to-last char was not a space so self._prev is not a
+                    # 1 letter word
+                    if self.is_final(self._prev):
+                        # case (1) [-2:not space][-1:final letter][cur:space]
+                        self._final_char_logical_score += 1
+                    elif self.is_non_final(self._prev):
+                        # case (2) [-2:not space][-1:Non-Final letter][
+                        #  cur:space]
+                        self._final_char_visual_score += 1
+            else:
+                # Not standing on a space
+                if ((self._before_prev == ' ') and
+                        (self.is_final(self._prev)) and (cur != ' ')):
+                    # case (3) [-2:space][-1:final letter][cur:not space]
+                    self._final_char_visual_score += 1
+            self._before_prev = self._prev
+            self._prev = cur
+
+        # Forever detecting, till the end or until both model probers return
+        # ProbingState.NOT_ME (handled above)
+        return ProbingState.DETECTING
+
+    @property
+    def charset_name(self):
+        # Make the decision: is it Logical or Visual?
+        # If the final letter score distance is dominant enough, rely on it.
+        finalsub = self._final_char_logical_score - self._final_char_visual_score
+        if finalsub >= self.MIN_FINAL_CHAR_DISTANCE:
+            return self.LOGICAL_HEBREW_NAME
+        if finalsub <= -self.MIN_FINAL_CHAR_DISTANCE:
+            return self.VISUAL_HEBREW_NAME
+
+        # It's not dominant enough, try to rely on the model scores instead.
+        modelsub = (self._logical_prober.get_confidence()
+                    - self._visual_prober.get_confidence())
+        if modelsub > self.MIN_MODEL_DISTANCE:
+            return self.LOGICAL_HEBREW_NAME
+        if modelsub < -self.MIN_MODEL_DISTANCE:
+            return self.VISUAL_HEBREW_NAME
+
+        # Still no good, back to final letter distance, maybe it'll save the
+        # day.
+        if finalsub < 0.0:
+            return self.VISUAL_HEBREW_NAME
+
+        # (finalsub > 0 - Logical) or (don't know what to do) default to
+        # Logical.
+        return self.LOGICAL_HEBREW_NAME
+
+    @property
+    def language(self):
+        return 'Hebrew'
+
+    @property
+    def state(self):
+        # Remain active as long as any of the model probers are active.
+        if (self._logical_prober.state == ProbingState.NOT_ME) and \
+           (self._visual_prober.state == ProbingState.NOT_ME):
+            return ProbingState.NOT_ME
+        return ProbingState.DETECTING
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/jisfreq.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/jisfreq.py
new file mode 100644
index 0000000..83fc082
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/jisfreq.py
@@ -0,0 +1,325 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# Sampling from about 20M text materials include literature and computer technology
+#
+# Japanese frequency table, applied to both S-JIS and EUC-JP
+# They are sorted in order.
+
+# 128  --> 0.77094
+# 256  --> 0.85710
+# 512  --> 0.92635
+# 1024 --> 0.97130
+# 2048 --> 0.99431
+#
+# Ideal Distribution Ratio = 0.92635 / (1-0.92635) = 12.58
+# Random Distribution Ration = 512 / (2965+62+83+86-512) = 0.191
+#
+# Typical Distribution Ratio, 25% of IDR
+
+JIS_TYPICAL_DISTRIBUTION_RATIO = 3.0
+
+# Char to FreqOrder table ,
+JIS_TABLE_SIZE = 4368
+
+JIS_CHAR_TO_FREQ_ORDER = (
+  40,   1,   6, 182, 152, 180, 295,2127, 285, 381,3295,4304,3068,4606,3165,3510, #   16
+3511,1822,2785,4607,1193,2226,5070,4608, 171,2996,1247,  18, 179,5071, 856,1661, #   32
+1262,5072, 619, 127,3431,3512,3230,1899,1700, 232, 228,1294,1298, 284, 283,2041, #   48
+2042,1061,1062,  48,  49,  44,  45, 433, 434,1040,1041, 996, 787,2997,1255,4305, #   64
+2108,4609,1684,1648,5073,5074,5075,5076,5077,5078,3687,5079,4610,5080,3927,3928, #   80
+5081,3296,3432, 290,2285,1471,2187,5082,2580,2825,1303,2140,1739,1445,2691,3375, #   96
+1691,3297,4306,4307,4611, 452,3376,1182,2713,3688,3069,4308,5083,5084,5085,5086, #  112
+5087,5088,5089,5090,5091,5092,5093,5094,5095,5096,5097,5098,5099,5100,5101,5102, #  128
+5103,5104,5105,5106,5107,5108,5109,5110,5111,5112,4097,5113,5114,5115,5116,5117, #  144
+5118,5119,5120,5121,5122,5123,5124,5125,5126,5127,5128,5129,5130,5131,5132,5133, #  160
+5134,5135,5136,5137,5138,5139,5140,5141,5142,5143,5144,5145,5146,5147,5148,5149, #  176
+5150,5151,5152,4612,5153,5154,5155,5156,5157,5158,5159,5160,5161,5162,5163,5164, #  192
+5165,5166,5167,5168,5169,5170,5171,5172,5173,5174,5175,1472, 598, 618, 820,1205, #  208
+1309,1412,1858,1307,1692,5176,5177,5178,5179,5180,5181,5182,1142,1452,1234,1172, #  224
+1875,2043,2149,1793,1382,2973, 925,2404,1067,1241, 960,1377,2935,1491, 919,1217, #  240
+1865,2030,1406,1499,2749,4098,5183,5184,5185,5186,5187,5188,2561,4099,3117,1804, #  256
+2049,3689,4309,3513,1663,5189,3166,3118,3298,1587,1561,3433,5190,3119,1625,2998, #  272
+3299,4613,1766,3690,2786,4614,5191,5192,5193,5194,2161,  26,3377,   2,3929,  20, #  288
+3691,  47,4100,  50,  17,  16,  35, 268,  27, 243,  42, 155,  24, 154,  29, 184, #  304
+   4,  91,  14,  92,  53, 396,  33, 289,   9,  37,  64, 620,  21,  39, 321,   5, #  320
+  12,  11,  52,  13,   3, 208, 138,   0,   7,  60, 526, 141, 151,1069, 181, 275, #  336
+1591,  83, 132,1475, 126, 331, 829,  15,  69, 160,  59,  22, 157,  55,1079, 312, #  352
+ 109,  38,  23,  25,  10,  19,  79,5195,  61, 382,1124,   8,  30,5196,5197,5198, #  368
+5199,5200,5201,5202,5203,5204,5205,5206,  89,  62,  74,  34,2416, 112, 139, 196, #  384
+ 271, 149,  84, 607, 131, 765,  46,  88, 153, 683,  76, 874, 101, 258,  57,  80, #  400
+  32, 364, 121,1508, 169,1547,  68, 235, 145,2999,  41, 360,3027,  70,  63,  31, #  416
+  43, 259, 262,1383,  99, 533, 194,  66,  93, 846, 217, 192,  56, 106,  58, 565, #  432
+ 280, 272, 311, 256, 146,  82, 308,  71, 100, 128, 214, 655, 110, 261, 104,1140, #  448
+  54,  51,  36,  87,  67,3070, 185,2618,2936,2020,  28,1066,2390,2059,5207,5208, #  464
+5209,5210,5211,5212,5213,5214,5215,5216,4615,5217,5218,5219,5220,5221,5222,5223, #  480
+5224,5225,5226,5227,5228,5229,5230,5231,5232,5233,5234,5235,5236,3514,5237,5238, #  496
+5239,5240,5241,5242,5243,5244,2297,2031,4616,4310,3692,5245,3071,5246,3598,5247, #  512
+4617,3231,3515,5248,4101,4311,4618,3808,4312,4102,5249,4103,4104,3599,5250,5251, #  528
+5252,5253,5254,5255,5256,5257,5258,5259,5260,5261,5262,5263,5264,5265,5266,5267, #  544
+5268,5269,5270,5271,5272,5273,5274,5275,5276,5277,5278,5279,5280,5281,5282,5283, #  560
+5284,5285,5286,5287,5288,5289,5290,5291,5292,5293,5294,5295,5296,5297,5298,5299, #  576
+5300,5301,5302,5303,5304,5305,5306,5307,5308,5309,5310,5311,5312,5313,5314,5315, #  592
+5316,5317,5318,5319,5320,5321,5322,5323,5324,5325,5326,5327,5328,5329,5330,5331, #  608
+5332,5333,5334,5335,5336,5337,5338,5339,5340,5341,5342,5343,5344,5345,5346,5347, #  624
+5348,5349,5350,5351,5352,5353,5354,5355,5356,5357,5358,5359,5360,5361,5362,5363, #  640
+5364,5365,5366,5367,5368,5369,5370,5371,5372,5373,5374,5375,5376,5377,5378,5379, #  656
+5380,5381, 363, 642,2787,2878,2788,2789,2316,3232,2317,3434,2011, 165,1942,3930, #  672
+3931,3932,3933,5382,4619,5383,4620,5384,5385,5386,5387,5388,5389,5390,5391,5392, #  688
+5393,5394,5395,5396,5397,5398,5399,5400,5401,5402,5403,5404,5405,5406,5407,5408, #  704
+5409,5410,5411,5412,5413,5414,5415,5416,5417,5418,5419,5420,5421,5422,5423,5424, #  720
+5425,5426,5427,5428,5429,5430,5431,5432,5433,5434,5435,5436,5437,5438,5439,5440, #  736
+5441,5442,5443,5444,5445,5446,5447,5448,5449,5450,5451,5452,5453,5454,5455,5456, #  752
+5457,5458,5459,5460,5461,5462,5463,5464,5465,5466,5467,5468,5469,5470,5471,5472, #  768
+5473,5474,5475,5476,5477,5478,5479,5480,5481,5482,5483,5484,5485,5486,5487,5488, #  784
+5489,5490,5491,5492,5493,5494,5495,5496,5497,5498,5499,5500,5501,5502,5503,5504, #  800
+5505,5506,5507,5508,5509,5510,5511,5512,5513,5514,5515,5516,5517,5518,5519,5520, #  816
+5521,5522,5523,5524,5525,5526,5527,5528,5529,5530,5531,5532,5533,5534,5535,5536, #  832
+5537,5538,5539,5540,5541,5542,5543,5544,5545,5546,5547,5548,5549,5550,5551,5552, #  848
+5553,5554,5555,5556,5557,5558,5559,5560,5561,5562,5563,5564,5565,5566,5567,5568, #  864
+5569,5570,5571,5572,5573,5574,5575,5576,5577,5578,5579,5580,5581,5582,5583,5584, #  880
+5585,5586,5587,5588,5589,5590,5591,5592,5593,5594,5595,5596,5597,5598,5599,5600, #  896
+5601,5602,5603,5604,5605,5606,5607,5608,5609,5610,5611,5612,5613,5614,5615,5616, #  912
+5617,5618,5619,5620,5621,5622,5623,5624,5625,5626,5627,5628,5629,5630,5631,5632, #  928
+5633,5634,5635,5636,5637,5638,5639,5640,5641,5642,5643,5644,5645,5646,5647,5648, #  944
+5649,5650,5651,5652,5653,5654,5655,5656,5657,5658,5659,5660,5661,5662,5663,5664, #  960
+5665,5666,5667,5668,5669,5670,5671,5672,5673,5674,5675,5676,5677,5678,5679,5680, #  976
+5681,5682,5683,5684,5685,5686,5687,5688,5689,5690,5691,5692,5693,5694,5695,5696, #  992
+5697,5698,5699,5700,5701,5702,5703,5704,5705,5706,5707,5708,5709,5710,5711,5712, # 1008
+5713,5714,5715,5716,5717,5718,5719,5720,5721,5722,5723,5724,5725,5726,5727,5728, # 1024
+5729,5730,5731,5732,5733,5734,5735,5736,5737,5738,5739,5740,5741,5742,5743,5744, # 1040
+5745,5746,5747,5748,5749,5750,5751,5752,5753,5754,5755,5756,5757,5758,5759,5760, # 1056
+5761,5762,5763,5764,5765,5766,5767,5768,5769,5770,5771,5772,5773,5774,5775,5776, # 1072
+5777,5778,5779,5780,5781,5782,5783,5784,5785,5786,5787,5788,5789,5790,5791,5792, # 1088
+5793,5794,5795,5796,5797,5798,5799,5800,5801,5802,5803,5804,5805,5806,5807,5808, # 1104
+5809,5810,5811,5812,5813,5814,5815,5816,5817,5818,5819,5820,5821,5822,5823,5824, # 1120
+5825,5826,5827,5828,5829,5830,5831,5832,5833,5834,5835,5836,5837,5838,5839,5840, # 1136
+5841,5842,5843,5844,5845,5846,5847,5848,5849,5850,5851,5852,5853,5854,5855,5856, # 1152
+5857,5858,5859,5860,5861,5862,5863,5864,5865,5866,5867,5868,5869,5870,5871,5872, # 1168
+5873,5874,5875,5876,5877,5878,5879,5880,5881,5882,5883,5884,5885,5886,5887,5888, # 1184
+5889,5890,5891,5892,5893,5894,5895,5896,5897,5898,5899,5900,5901,5902,5903,5904, # 1200
+5905,5906,5907,5908,5909,5910,5911,5912,5913,5914,5915,5916,5917,5918,5919,5920, # 1216
+5921,5922,5923,5924,5925,5926,5927,5928,5929,5930,5931,5932,5933,5934,5935,5936, # 1232
+5937,5938,5939,5940,5941,5942,5943,5944,5945,5946,5947,5948,5949,5950,5951,5952, # 1248
+5953,5954,5955,5956,5957,5958,5959,5960,5961,5962,5963,5964,5965,5966,5967,5968, # 1264
+5969,5970,5971,5972,5973,5974,5975,5976,5977,5978,5979,5980,5981,5982,5983,5984, # 1280
+5985,5986,5987,5988,5989,5990,5991,5992,5993,5994,5995,5996,5997,5998,5999,6000, # 1296
+6001,6002,6003,6004,6005,6006,6007,6008,6009,6010,6011,6012,6013,6014,6015,6016, # 1312
+6017,6018,6019,6020,6021,6022,6023,6024,6025,6026,6027,6028,6029,6030,6031,6032, # 1328
+6033,6034,6035,6036,6037,6038,6039,6040,6041,6042,6043,6044,6045,6046,6047,6048, # 1344
+6049,6050,6051,6052,6053,6054,6055,6056,6057,6058,6059,6060,6061,6062,6063,6064, # 1360
+6065,6066,6067,6068,6069,6070,6071,6072,6073,6074,6075,6076,6077,6078,6079,6080, # 1376
+6081,6082,6083,6084,6085,6086,6087,6088,6089,6090,6091,6092,6093,6094,6095,6096, # 1392
+6097,6098,6099,6100,6101,6102,6103,6104,6105,6106,6107,6108,6109,6110,6111,6112, # 1408
+6113,6114,2044,2060,4621, 997,1235, 473,1186,4622, 920,3378,6115,6116, 379,1108, # 1424
+4313,2657,2735,3934,6117,3809, 636,3233, 573,1026,3693,3435,2974,3300,2298,4105, # 1440
+ 854,2937,2463, 393,2581,2417, 539, 752,1280,2750,2480, 140,1161, 440, 708,1569, # 1456
+ 665,2497,1746,1291,1523,3000, 164,1603, 847,1331, 537,1997, 486, 508,1693,2418, # 1472
+1970,2227, 878,1220, 299,1030, 969, 652,2751, 624,1137,3301,2619,  65,3302,2045, # 1488
+1761,1859,3120,1930,3694,3516, 663,1767, 852, 835,3695, 269, 767,2826,2339,1305, # 1504
+ 896,1150, 770,1616,6118, 506,1502,2075,1012,2519, 775,2520,2975,2340,2938,4314, # 1520
+3028,2086,1224,1943,2286,6119,3072,4315,2240,1273,1987,3935,1557, 175, 597, 985, # 1536
+3517,2419,2521,1416,3029, 585, 938,1931,1007,1052,1932,1685,6120,3379,4316,4623, # 1552
+ 804, 599,3121,1333,2128,2539,1159,1554,2032,3810, 687,2033,2904, 952, 675,1467, # 1568
+3436,6121,2241,1096,1786,2440,1543,1924, 980,1813,2228, 781,2692,1879, 728,1918, # 1584
+3696,4624, 548,1950,4625,1809,1088,1356,3303,2522,1944, 502, 972, 373, 513,2827, # 1600
+ 586,2377,2391,1003,1976,1631,6122,2464,1084, 648,1776,4626,2141, 324, 962,2012, # 1616
+2177,2076,1384, 742,2178,1448,1173,1810, 222, 102, 301, 445, 125,2420, 662,2498, # 1632
+ 277, 200,1476,1165,1068, 224,2562,1378,1446, 450,1880, 659, 791, 582,4627,2939, # 1648
+3936,1516,1274, 555,2099,3697,1020,1389,1526,3380,1762,1723,1787,2229, 412,2114, # 1664
+1900,2392,3518, 512,2597, 427,1925,2341,3122,1653,1686,2465,2499, 697, 330, 273, # 1680
+ 380,2162, 951, 832, 780, 991,1301,3073, 965,2270,3519, 668,2523,2636,1286, 535, # 1696
+1407, 518, 671, 957,2658,2378, 267, 611,2197,3030,6123, 248,2299, 967,1799,2356, # 1712
+ 850,1418,3437,1876,1256,1480,2828,1718,6124,6125,1755,1664,2405,6126,4628,2879, # 1728
+2829, 499,2179, 676,4629, 557,2329,2214,2090, 325,3234, 464, 811,3001, 992,2342, # 1744
+2481,1232,1469, 303,2242, 466,1070,2163, 603,1777,2091,4630,2752,4631,2714, 322, # 1760
+2659,1964,1768, 481,2188,1463,2330,2857,3600,2092,3031,2421,4632,2318,2070,1849, # 1776
+2598,4633,1302,2254,1668,1701,2422,3811,2905,3032,3123,2046,4106,1763,1694,4634, # 1792
+1604, 943,1724,1454, 917, 868,2215,1169,2940, 552,1145,1800,1228,1823,1955, 316, # 1808
+1080,2510, 361,1807,2830,4107,2660,3381,1346,1423,1134,4108,6127, 541,1263,1229, # 1824
+1148,2540, 545, 465,1833,2880,3438,1901,3074,2482, 816,3937, 713,1788,2500, 122, # 1840
+1575, 195,1451,2501,1111,6128, 859, 374,1225,2243,2483,4317, 390,1033,3439,3075, # 1856
+2524,1687, 266, 793,1440,2599, 946, 779, 802, 507, 897,1081, 528,2189,1292, 711, # 1872
+1866,1725,1167,1640, 753, 398,2661,1053, 246, 348,4318, 137,1024,3440,1600,2077, # 1888
+2129, 825,4319, 698, 238, 521, 187,2300,1157,2423,1641,1605,1464,1610,1097,2541, # 1904
+1260,1436, 759,2255,1814,2150, 705,3235, 409,2563,3304, 561,3033,2005,2564, 726, # 1920
+1956,2343,3698,4109, 949,3812,3813,3520,1669, 653,1379,2525, 881,2198, 632,2256, # 1936
+1027, 778,1074, 733,1957, 514,1481,2466, 554,2180, 702,3938,1606,1017,1398,6129, # 1952
+1380,3521, 921, 993,1313, 594, 449,1489,1617,1166, 768,1426,1360, 495,1794,3601, # 1968
+1177,3602,1170,4320,2344, 476, 425,3167,4635,3168,1424, 401,2662,1171,3382,1998, # 1984
+1089,4110, 477,3169, 474,6130,1909, 596,2831,1842, 494, 693,1051,1028,1207,3076, # 2000
+ 606,2115, 727,2790,1473,1115, 743,3522, 630, 805,1532,4321,2021, 366,1057, 838, # 2016
+ 684,1114,2142,4322,2050,1492,1892,1808,2271,3814,2424,1971,1447,1373,3305,1090, # 2032
+1536,3939,3523,3306,1455,2199, 336, 369,2331,1035, 584,2393, 902, 718,2600,6131, # 2048
+2753, 463,2151,1149,1611,2467, 715,1308,3124,1268, 343,1413,3236,1517,1347,2663, # 2064
+2093,3940,2022,1131,1553,2100,2941,1427,3441,2942,1323,2484,6132,1980, 872,2368, # 2080
+2441,2943, 320,2369,2116,1082, 679,1933,3941,2791,3815, 625,1143,2023, 422,2200, # 2096
+3816,6133, 730,1695, 356,2257,1626,2301,2858,2637,1627,1778, 937, 883,2906,2693, # 2112
+3002,1769,1086, 400,1063,1325,3307,2792,4111,3077, 456,2345,1046, 747,6134,1524, # 2128
+ 884,1094,3383,1474,2164,1059, 974,1688,2181,2258,1047, 345,1665,1187, 358, 875, # 2144
+3170, 305, 660,3524,2190,1334,1135,3171,1540,1649,2542,1527, 927, 968,2793, 885, # 2160
+1972,1850, 482, 500,2638,1218,1109,1085,2543,1654,2034, 876,  78,2287,1482,1277, # 2176
+ 861,1675,1083,1779, 724,2754, 454, 397,1132,1612,2332, 893, 672,1237, 257,2259, # 2192
+2370, 135,3384, 337,2244, 547, 352, 340, 709,2485,1400, 788,1138,2511, 540, 772, # 2208
+1682,2260,2272,2544,2013,1843,1902,4636,1999,1562,2288,4637,2201,1403,1533, 407, # 2224
+ 576,3308,1254,2071, 978,3385, 170, 136,1201,3125,2664,3172,2394, 213, 912, 873, # 2240
+3603,1713,2202, 699,3604,3699, 813,3442, 493, 531,1054, 468,2907,1483, 304, 281, # 2256
+4112,1726,1252,2094, 339,2319,2130,2639, 756,1563,2944, 748, 571,2976,1588,2425, # 2272
+2715,1851,1460,2426,1528,1392,1973,3237, 288,3309, 685,3386, 296, 892,2716,2216, # 2288
+1570,2245, 722,1747,2217, 905,3238,1103,6135,1893,1441,1965, 251,1805,2371,3700, # 2304
+2601,1919,1078,  75,2182,1509,1592,1270,2640,4638,2152,6136,3310,3817, 524, 706, # 2320
+1075, 292,3818,1756,2602, 317,  98,3173,3605,3525,1844,2218,3819,2502, 814, 567, # 2336
+ 385,2908,1534,6137, 534,1642,3239, 797,6138,1670,1529, 953,4323, 188,1071, 538, # 2352
+ 178, 729,3240,2109,1226,1374,2000,2357,2977, 731,2468,1116,2014,2051,6139,1261, # 2368
+1593, 803,2859,2736,3443, 556, 682, 823,1541,6140,1369,2289,1706,2794, 845, 462, # 2384
+2603,2665,1361, 387, 162,2358,1740, 739,1770,1720,1304,1401,3241,1049, 627,1571, # 2400
+2427,3526,1877,3942,1852,1500, 431,1910,1503, 677, 297,2795, 286,1433,1038,1198, # 2416
+2290,1133,1596,4113,4639,2469,1510,1484,3943,6141,2442, 108, 712,4640,2372, 866, # 2432
+3701,2755,3242,1348, 834,1945,1408,3527,2395,3243,1811, 824, 994,1179,2110,1548, # 2448
+1453, 790,3003, 690,4324,4325,2832,2909,3820,1860,3821, 225,1748, 310, 346,1780, # 2464
+2470, 821,1993,2717,2796, 828, 877,3528,2860,2471,1702,2165,2910,2486,1789, 453, # 2480
+ 359,2291,1676,  73,1164,1461,1127,3311, 421, 604, 314,1037, 589, 116,2487, 737, # 2496
+ 837,1180, 111, 244, 735,6142,2261,1861,1362, 986, 523, 418, 581,2666,3822, 103, # 2512
+ 855, 503,1414,1867,2488,1091, 657,1597, 979, 605,1316,4641,1021,2443,2078,2001, # 2528
+1209,  96, 587,2166,1032, 260,1072,2153, 173,  94, 226,3244, 819,2006,4642,4114, # 2544
+2203, 231,1744, 782,  97,2667, 786,3387, 887, 391, 442,2219,4326,1425,6143,2694, # 2560
+ 633,1544,1202, 483,2015, 592,2052,1958,2472,1655, 419, 129,4327,3444,3312,1714, # 2576
+1257,3078,4328,1518,1098, 865,1310,1019,1885,1512,1734, 469,2444, 148, 773, 436, # 2592
+1815,1868,1128,1055,4329,1245,2756,3445,2154,1934,1039,4643, 579,1238, 932,2320, # 2608
+ 353, 205, 801, 115,2428, 944,2321,1881, 399,2565,1211, 678, 766,3944, 335,2101, # 2624
+1459,1781,1402,3945,2737,2131,1010, 844, 981,1326,1013, 550,1816,1545,2620,1335, # 2640
+1008, 371,2881, 936,1419,1613,3529,1456,1395,2273,1834,2604,1317,2738,2503, 416, # 2656
+1643,4330, 806,1126, 229, 591,3946,1314,1981,1576,1837,1666, 347,1790, 977,3313, # 2672
+ 764,2861,1853, 688,2429,1920,1462,  77, 595, 415,2002,3034, 798,1192,4115,6144, # 2688
+2978,4331,3035,2695,2582,2072,2566, 430,2430,1727, 842,1396,3947,3702, 613, 377, # 2704
+ 278, 236,1417,3388,3314,3174, 757,1869, 107,3530,6145,1194, 623,2262, 207,1253, # 2720
+2167,3446,3948, 492,1117,1935, 536,1838,2757,1246,4332, 696,2095,2406,1393,1572, # 2736
+3175,1782, 583, 190, 253,1390,2230, 830,3126,3389, 934,3245,1703,1749,2979,1870, # 2752
+2545,1656,2204, 869,2346,4116,3176,1817, 496,1764,4644, 942,1504, 404,1903,1122, # 2768
+1580,3606,2945,1022, 515, 372,1735, 955,2431,3036,6146,2797,1110,2302,2798, 617, # 2784
+6147, 441, 762,1771,3447,3607,3608,1904, 840,3037,  86, 939,1385, 572,1370,2445, # 2800
+1336, 114,3703, 898, 294, 203,3315, 703,1583,2274, 429, 961,4333,1854,1951,3390, # 2816
+2373,3704,4334,1318,1381, 966,1911,2322,1006,1155, 309, 989, 458,2718,1795,1372, # 2832
+1203, 252,1689,1363,3177, 517,1936, 168,1490, 562, 193,3823,1042,4117,1835, 551, # 2848
+ 470,4645, 395, 489,3448,1871,1465,2583,2641, 417,1493, 279,1295, 511,1236,1119, # 2864
+  72,1231,1982,1812,3004, 871,1564, 984,3449,1667,2696,2096,4646,2347,2833,1673, # 2880
+3609, 695,3246,2668, 807,1183,4647, 890, 388,2333,1801,1457,2911,1765,1477,1031, # 2896
+3316,3317,1278,3391,2799,2292,2526, 163,3450,4335,2669,1404,1802,6148,2323,2407, # 2912
+1584,1728,1494,1824,1269, 298, 909,3318,1034,1632, 375, 776,1683,2061, 291, 210, # 2928
+1123, 809,1249,1002,2642,3038, 206,1011,2132, 144, 975, 882,1565, 342, 667, 754, # 2944
+1442,2143,1299,2303,2062, 447, 626,2205,1221,2739,2912,1144,1214,2206,2584, 760, # 2960
+1715, 614, 950,1281,2670,2621, 810, 577,1287,2546,4648, 242,2168, 250,2643, 691, # 2976
+ 123,2644, 647, 313,1029, 689,1357,2946,1650, 216, 771,1339,1306, 808,2063, 549, # 2992
+ 913,1371,2913,2914,6149,1466,1092,1174,1196,1311,2605,2396,1783,1796,3079, 406, # 3008
+2671,2117,3949,4649, 487,1825,2220,6150,2915, 448,2348,1073,6151,2397,1707, 130, # 3024
+ 900,1598, 329, 176,1959,2527,1620,6152,2275,4336,3319,1983,2191,3705,3610,2155, # 3040
+3706,1912,1513,1614,6153,1988, 646, 392,2304,1589,3320,3039,1826,1239,1352,1340, # 3056
+2916, 505,2567,1709,1437,2408,2547, 906,6154,2672, 384,1458,1594,1100,1329, 710, # 3072
+ 423,3531,2064,2231,2622,1989,2673,1087,1882, 333, 841,3005,1296,2882,2379, 580, # 3088
+1937,1827,1293,2585, 601, 574, 249,1772,4118,2079,1120, 645, 901,1176,1690, 795, # 3104
+2207, 478,1434, 516,1190,1530, 761,2080, 930,1264, 355, 435,1552, 644,1791, 987, # 3120
+ 220,1364,1163,1121,1538, 306,2169,1327,1222, 546,2645, 218, 241, 610,1704,3321, # 3136
+1984,1839,1966,2528, 451,6155,2586,3707,2568, 907,3178, 254,2947, 186,1845,4650, # 3152
+ 745, 432,1757, 428,1633, 888,2246,2221,2489,3611,2118,1258,1265, 956,3127,1784, # 3168
+4337,2490, 319, 510, 119, 457,3612, 274,2035,2007,4651,1409,3128, 970,2758, 590, # 3184
+2800, 661,2247,4652,2008,3950,1420,1549,3080,3322,3951,1651,1375,2111, 485,2491, # 3200
+1429,1156,6156,2548,2183,1495, 831,1840,2529,2446, 501,1657, 307,1894,3247,1341, # 3216
+ 666, 899,2156,1539,2549,1559, 886, 349,2208,3081,2305,1736,3824,2170,2759,1014, # 3232
+1913,1386, 542,1397,2948, 490, 368, 716, 362, 159, 282,2569,1129,1658,1288,1750, # 3248
+2674, 276, 649,2016, 751,1496, 658,1818,1284,1862,2209,2087,2512,3451, 622,2834, # 3264
+ 376, 117,1060,2053,1208,1721,1101,1443, 247,1250,3179,1792,3952,2760,2398,3953, # 3280
+6157,2144,3708, 446,2432,1151,2570,3452,2447,2761,2835,1210,2448,3082, 424,2222, # 3296
+1251,2449,2119,2836, 504,1581,4338, 602, 817, 857,3825,2349,2306, 357,3826,1470, # 3312
+1883,2883, 255, 958, 929,2917,3248, 302,4653,1050,1271,1751,2307,1952,1430,2697, # 3328
+2719,2359, 354,3180, 777, 158,2036,4339,1659,4340,4654,2308,2949,2248,1146,2232, # 3344
+3532,2720,1696,2623,3827,6158,3129,1550,2698,1485,1297,1428, 637, 931,2721,2145, # 3360
+ 914,2550,2587,  81,2450, 612, 827,2646,1242,4655,1118,2884, 472,1855,3181,3533, # 3376
+3534, 569,1353,2699,1244,1758,2588,4119,2009,2762,2171,3709,1312,1531,6159,1152, # 3392
+1938, 134,1830, 471,3710,2276,1112,1535,3323,3453,3535, 982,1337,2950, 488, 826, # 3408
+ 674,1058,1628,4120,2017, 522,2399, 211, 568,1367,3454, 350, 293,1872,1139,3249, # 3424
+1399,1946,3006,1300,2360,3324, 588, 736,6160,2606, 744, 669,3536,3828,6161,1358, # 3440
+ 199, 723, 848, 933, 851,1939,1505,1514,1338,1618,1831,4656,1634,3613, 443,2740, # 3456
+3829, 717,1947, 491,1914,6162,2551,1542,4121,1025,6163,1099,1223, 198,3040,2722, # 3472
+ 370, 410,1905,2589, 998,1248,3182,2380, 519,1449,4122,1710, 947, 928,1153,4341, # 3488
+2277, 344,2624,1511, 615, 105, 161,1212,1076,1960,3130,2054,1926,1175,1906,2473, # 3504
+ 414,1873,2801,6164,2309, 315,1319,3325, 318,2018,2146,2157, 963, 631, 223,4342, # 3520
+4343,2675, 479,3711,1197,2625,3712,2676,2361,6165,4344,4123,6166,2451,3183,1886, # 3536
+2184,1674,1330,1711,1635,1506, 799, 219,3250,3083,3954,1677,3713,3326,2081,3614, # 3552
+1652,2073,4657,1147,3041,1752, 643,1961, 147,1974,3955,6167,1716,2037, 918,3007, # 3568
+1994, 120,1537, 118, 609,3184,4345, 740,3455,1219, 332,1615,3830,6168,1621,2980, # 3584
+1582, 783, 212, 553,2350,3714,1349,2433,2082,4124, 889,6169,2310,1275,1410, 973, # 3600
+ 166,1320,3456,1797,1215,3185,2885,1846,2590,2763,4658, 629, 822,3008, 763, 940, # 3616
+1990,2862, 439,2409,1566,1240,1622, 926,1282,1907,2764, 654,2210,1607, 327,1130, # 3632
+3956,1678,1623,6170,2434,2192, 686, 608,3831,3715, 903,3957,3042,6171,2741,1522, # 3648
+1915,1105,1555,2552,1359, 323,3251,4346,3457, 738,1354,2553,2311,2334,1828,2003, # 3664
+3832,1753,2351,1227,6172,1887,4125,1478,6173,2410,1874,1712,1847, 520,1204,2607, # 3680
+ 264,4659, 836,2677,2102, 600,4660,3833,2278,3084,6174,4347,3615,1342, 640, 532, # 3696
+ 543,2608,1888,2400,2591,1009,4348,1497, 341,1737,3616,2723,1394, 529,3252,1321, # 3712
+ 983,4661,1515,2120, 971,2592, 924, 287,1662,3186,4349,2700,4350,1519, 908,1948, # 3728
+2452, 156, 796,1629,1486,2223,2055, 694,4126,1259,1036,3392,1213,2249,2742,1889, # 3744
+1230,3958,1015, 910, 408, 559,3617,4662, 746, 725, 935,4663,3959,3009,1289, 563, # 3760
+ 867,4664,3960,1567,2981,2038,2626, 988,2263,2381,4351, 143,2374, 704,1895,6175, # 3776
+1188,3716,2088, 673,3085,2362,4352, 484,1608,1921,2765,2918, 215, 904,3618,3537, # 3792
+ 894, 509, 976,3043,2701,3961,4353,2837,2982, 498,6176,6177,1102,3538,1332,3393, # 3808
+1487,1636,1637, 233, 245,3962, 383, 650, 995,3044, 460,1520,1206,2352, 749,3327, # 3824
+ 530, 700, 389,1438,1560,1773,3963,2264, 719,2951,2724,3834, 870,1832,1644,1000, # 3840
+ 839,2474,3717, 197,1630,3394, 365,2886,3964,1285,2133, 734, 922, 818,1106, 732, # 3856
+ 480,2083,1774,3458, 923,2279,1350, 221,3086,  85,2233,2234,3835,1585,3010,2147, # 3872
+1387,1705,2382,1619,2475, 133, 239,2802,1991,1016,2084,2383, 411,2838,1113, 651, # 3888
+1985,1160,3328, 990,1863,3087,1048,1276,2647, 265,2627,1599,3253,2056, 150, 638, # 3904
+2019, 656, 853, 326,1479, 680,1439,4354,1001,1759, 413,3459,3395,2492,1431, 459, # 3920
+4355,1125,3329,2265,1953,1450,2065,2863, 849, 351,2678,3131,3254,3255,1104,1577, # 3936
+ 227,1351,1645,2453,2193,1421,2887, 812,2121, 634,  95,2435, 201,2312,4665,1646, # 3952
+1671,2743,1601,2554,2702,2648,2280,1315,1366,2089,3132,1573,3718,3965,1729,1189, # 3968
+ 328,2679,1077,1940,1136, 558,1283, 964,1195, 621,2074,1199,1743,3460,3619,1896, # 3984
+1916,1890,3836,2952,1154,2112,1064, 862, 378,3011,2066,2113,2803,1568,2839,6178, # 4000
+3088,2919,1941,1660,2004,1992,2194, 142, 707,1590,1708,1624,1922,1023,1836,1233, # 4016
+1004,2313, 789, 741,3620,6179,1609,2411,1200,4127,3719,3720,4666,2057,3721, 593, # 4032
+2840, 367,2920,1878,6180,3461,1521, 628,1168, 692,2211,2649, 300, 720,2067,2571, # 4048
+2953,3396, 959,2504,3966,3539,3462,1977, 701,6181, 954,1043, 800, 681, 183,3722, # 4064
+1803,1730,3540,4128,2103, 815,2314, 174, 467, 230,2454,1093,2134, 755,3541,3397, # 4080
+1141,1162,6182,1738,2039, 270,3256,2513,1005,1647,2185,3837, 858,1679,1897,1719, # 4096
+2954,2324,1806, 402, 670, 167,4129,1498,2158,2104, 750,6183, 915, 189,1680,1551, # 4112
+ 455,4356,1501,2455, 405,1095,2955, 338,1586,1266,1819, 570, 641,1324, 237,1556, # 4128
+2650,1388,3723,6184,1368,2384,1343,1978,3089,2436, 879,3724, 792,1191, 758,3012, # 4144
+1411,2135,1322,4357, 240,4667,1848,3725,1574,6185, 420,3045,1546,1391, 714,4358, # 4160
+1967, 941,1864, 863, 664, 426, 560,1731,2680,1785,2864,1949,2363, 403,3330,1415, # 4176
+1279,2136,1697,2335, 204, 721,2097,3838,  90,6186,2085,2505, 191,3967, 124,2148, # 4192
+1376,1798,1178,1107,1898,1405, 860,4359,1243,1272,2375,2983,1558,2456,1638, 113, # 4208
+3621, 578,1923,2609, 880, 386,4130, 784,2186,2266,1422,2956,2172,1722, 497, 263, # 4224
+2514,1267,2412,2610, 177,2703,3542, 774,1927,1344, 616,1432,1595,1018, 172,4360, # 4240
+2325, 911,4361, 438,1468,3622, 794,3968,2024,2173,1681,1829,2957, 945, 895,3090, # 4256
+ 575,2212,2476, 475,2401,2681, 785,2744,1745,2293,2555,1975,3133,2865, 394,4668, # 4272
+3839, 635,4131, 639, 202,1507,2195,2766,1345,1435,2572,3726,1908,1184,1181,2457, # 4288
+3727,3134,4362, 843,2611, 437, 916,4669, 234, 769,1884,3046,3047,3623, 833,6187, # 4304
+1639,2250,2402,1355,1185,2010,2047, 999, 525,1732,1290,1488,2612, 948,1578,3728, # 4320
+2413,2477,1216,2725,2159, 334,3840,1328,3624,2921,1525,4132, 564,1056, 891,4363, # 4336
+1444,1698,2385,2251,3729,1365,2281,2235,1717,6188, 864,3841,2515, 444, 527,2767, # 4352
+2922,3625, 544, 461,6189, 566, 209,2437,3398,2098,1065,2068,3331,3626,3257,2137, # 4368  #last 512
+)
+
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/jpcntx.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/jpcntx.py
new file mode 100644
index 0000000..20044e4
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/jpcntx.py
@@ -0,0 +1,233 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+
+# This is hiragana 2-char sequence table, the number in each cell represents its frequency category
+jp2CharContext = (
+(0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1),
+(2,4,0,4,0,3,0,4,0,3,4,4,4,2,4,3,3,4,3,2,3,3,4,2,3,3,3,2,4,1,4,3,3,1,5,4,3,4,3,4,3,5,3,0,3,5,4,2,0,3,1,0,3,3,0,3,3,0,1,1,0,4,3,0,3,3,0,4,0,2,0,3,5,5,5,5,4,0,4,1,0,3,4),
+(0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2),
+(0,4,0,5,0,5,0,4,0,4,5,4,4,3,5,3,5,1,5,3,4,3,4,4,3,4,3,3,4,3,5,4,4,3,5,5,3,5,5,5,3,5,5,3,4,5,5,3,1,3,2,0,3,4,0,4,2,0,4,2,1,5,3,2,3,5,0,4,0,2,0,5,4,4,5,4,5,0,4,0,0,4,4),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,3,0,4,0,3,0,3,0,4,5,4,3,3,3,3,4,3,5,4,4,3,5,4,4,3,4,3,4,4,4,4,5,3,4,4,3,4,5,5,4,5,5,1,4,5,4,3,0,3,3,1,3,3,0,4,4,0,3,3,1,5,3,3,3,5,0,4,0,3,0,4,4,3,4,3,3,0,4,1,1,3,4),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,4,0,3,0,3,0,4,0,3,4,4,3,2,2,1,2,1,3,1,3,3,3,3,3,4,3,1,3,3,5,3,3,0,4,3,0,5,4,3,3,5,4,4,3,4,4,5,0,1,2,0,1,2,0,2,2,0,1,0,0,5,2,2,1,4,0,3,0,1,0,4,4,3,5,4,3,0,2,1,0,4,3),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,3,0,5,0,4,0,2,1,4,4,2,4,1,4,2,4,2,4,3,3,3,4,3,3,3,3,1,4,2,3,3,3,1,4,4,1,1,1,4,3,3,2,0,2,4,3,2,0,3,3,0,3,1,1,0,0,0,3,3,0,4,2,2,3,4,0,4,0,3,0,4,4,5,3,4,4,0,3,0,0,1,4),
+(1,4,0,4,0,4,0,4,0,3,5,4,4,3,4,3,5,4,3,3,4,3,5,4,4,4,4,3,4,2,4,3,3,1,5,4,3,2,4,5,4,5,5,4,4,5,4,4,0,3,2,2,3,3,0,4,3,1,3,2,1,4,3,3,4,5,0,3,0,2,0,4,5,5,4,5,4,0,4,0,0,5,4),
+(0,5,0,5,0,4,0,3,0,4,4,3,4,3,3,3,4,0,4,4,4,3,4,3,4,3,3,1,4,2,4,3,4,0,5,4,1,4,5,4,4,5,3,2,4,3,4,3,2,4,1,3,3,3,2,3,2,0,4,3,3,4,3,3,3,4,0,4,0,3,0,4,5,4,4,4,3,0,4,1,0,1,3),
+(0,3,1,4,0,3,0,2,0,3,4,4,3,1,4,2,3,3,4,3,4,3,4,3,4,4,3,2,3,1,5,4,4,1,4,4,3,5,4,4,3,5,5,4,3,4,4,3,1,2,3,1,2,2,0,3,2,0,3,1,0,5,3,3,3,4,3,3,3,3,4,4,4,4,5,4,2,0,3,3,2,4,3),
+(0,2,0,3,0,1,0,1,0,0,3,2,0,0,2,0,1,0,2,1,3,3,3,1,2,3,1,0,1,0,4,2,1,1,3,3,0,4,3,3,1,4,3,3,0,3,3,2,0,0,0,0,1,0,0,2,0,0,0,0,0,4,1,0,2,3,2,2,2,1,3,3,3,4,4,3,2,0,3,1,0,3,3),
+(0,4,0,4,0,3,0,3,0,4,4,4,3,3,3,3,3,3,4,3,4,2,4,3,4,3,3,2,4,3,4,5,4,1,4,5,3,5,4,5,3,5,4,0,3,5,5,3,1,3,3,2,2,3,0,3,4,1,3,3,2,4,3,3,3,4,0,4,0,3,0,4,5,4,4,5,3,0,4,1,0,3,4),
+(0,2,0,3,0,3,0,0,0,2,2,2,1,0,1,0,0,0,3,0,3,0,3,0,1,3,1,0,3,1,3,3,3,1,3,3,3,0,1,3,1,3,4,0,0,3,1,1,0,3,2,0,0,0,0,1,3,0,1,0,0,3,3,2,0,3,0,0,0,0,0,3,4,3,4,3,3,0,3,0,0,2,3),
+(2,3,0,3,0,2,0,1,0,3,3,4,3,1,3,1,1,1,3,1,4,3,4,3,3,3,0,0,3,1,5,4,3,1,4,3,2,5,5,4,4,4,4,3,3,4,4,4,0,2,1,1,3,2,0,1,2,0,0,1,0,4,1,3,3,3,0,3,0,1,0,4,4,4,5,5,3,0,2,0,0,4,4),
+(0,2,0,1,0,3,1,3,0,2,3,3,3,0,3,1,0,0,3,0,3,2,3,1,3,2,1,1,0,0,4,2,1,0,2,3,1,4,3,2,0,4,4,3,1,3,1,3,0,1,0,0,1,0,0,0,1,0,0,0,0,4,1,1,1,2,0,3,0,0,0,3,4,2,4,3,2,0,1,0,0,3,3),
+(0,1,0,4,0,5,0,4,0,2,4,4,2,3,3,2,3,3,5,3,3,3,4,3,4,2,3,0,4,3,3,3,4,1,4,3,2,1,5,5,3,4,5,1,3,5,4,2,0,3,3,0,1,3,0,4,2,0,1,3,1,4,3,3,3,3,0,3,0,1,0,3,4,4,4,5,5,0,3,0,1,4,5),
+(0,2,0,3,0,3,0,0,0,2,3,1,3,0,4,0,1,1,3,0,3,4,3,2,3,1,0,3,3,2,3,1,3,0,2,3,0,2,1,4,1,2,2,0,0,3,3,0,0,2,0,0,0,1,0,0,0,0,2,2,0,3,2,1,3,3,0,2,0,2,0,0,3,3,1,2,4,0,3,0,2,2,3),
+(2,4,0,5,0,4,0,4,0,2,4,4,4,3,4,3,3,3,1,2,4,3,4,3,4,4,5,0,3,3,3,3,2,0,4,3,1,4,3,4,1,4,4,3,3,4,4,3,1,2,3,0,4,2,0,4,1,0,3,3,0,4,3,3,3,4,0,4,0,2,0,3,5,3,4,5,2,0,3,0,0,4,5),
+(0,3,0,4,0,1,0,1,0,1,3,2,2,1,3,0,3,0,2,0,2,0,3,0,2,0,0,0,1,0,1,1,0,0,3,1,0,0,0,4,0,3,1,0,2,1,3,0,0,0,0,0,0,3,0,0,0,0,0,0,0,4,2,2,3,1,0,3,0,0,0,1,4,4,4,3,0,0,4,0,0,1,4),
+(1,4,1,5,0,3,0,3,0,4,5,4,4,3,5,3,3,4,4,3,4,1,3,3,3,3,2,1,4,1,5,4,3,1,4,4,3,5,4,4,3,5,4,3,3,4,4,4,0,3,3,1,2,3,0,3,1,0,3,3,0,5,4,4,4,4,4,4,3,3,5,4,4,3,3,5,4,0,3,2,0,4,4),
+(0,2,0,3,0,1,0,0,0,1,3,3,3,2,4,1,3,0,3,1,3,0,2,2,1,1,0,0,2,0,4,3,1,0,4,3,0,4,4,4,1,4,3,1,1,3,3,1,0,2,0,0,1,3,0,0,0,0,2,0,0,4,3,2,4,3,5,4,3,3,3,4,3,3,4,3,3,0,2,1,0,3,3),
+(0,2,0,4,0,3,0,2,0,2,5,5,3,4,4,4,4,1,4,3,3,0,4,3,4,3,1,3,3,2,4,3,0,3,4,3,0,3,4,4,2,4,4,0,4,5,3,3,2,2,1,1,1,2,0,1,5,0,3,3,2,4,3,3,3,4,0,3,0,2,0,4,4,3,5,5,0,0,3,0,2,3,3),
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+(0,2,0,5,0,5,0,1,0,2,4,3,3,2,5,1,3,2,3,3,3,0,4,1,2,0,3,0,4,0,2,2,1,1,5,3,0,0,1,4,2,3,2,0,3,3,3,2,0,2,4,1,1,2,0,1,1,0,3,1,0,1,3,1,2,3,0,2,0,0,0,1,3,5,4,4,4,0,3,0,0,1,3),
+(0,4,0,5,0,4,0,4,0,4,5,4,3,3,4,3,3,3,4,3,4,4,5,3,4,5,4,2,4,2,3,4,3,1,4,4,1,3,5,4,4,5,5,4,4,5,5,5,2,3,3,1,4,3,1,3,3,0,3,3,1,4,3,4,4,4,0,3,0,4,0,3,3,4,4,5,0,0,4,3,0,4,5),
+(0,4,0,4,0,3,0,3,0,3,4,4,4,3,3,2,4,3,4,3,4,3,5,3,4,3,2,1,4,2,4,4,3,1,3,4,2,4,5,5,3,4,5,4,1,5,4,3,0,3,2,2,3,2,1,3,1,0,3,3,3,5,3,3,3,5,4,4,2,3,3,4,3,3,3,2,1,0,3,2,1,4,3),
+(0,4,0,5,0,4,0,3,0,3,5,5,3,2,4,3,4,0,5,4,4,1,4,4,4,3,3,3,4,3,5,5,2,3,3,4,1,2,5,5,3,5,5,2,3,5,5,4,0,3,2,0,3,3,1,1,5,1,4,1,0,4,3,2,3,5,0,4,0,3,0,5,4,3,4,3,0,0,4,1,0,4,4),
+(1,3,0,4,0,2,0,2,0,2,5,5,3,3,3,3,3,0,4,2,3,4,4,4,3,4,0,0,3,4,5,4,3,3,3,3,2,5,5,4,5,5,5,4,3,5,5,5,1,3,1,0,1,0,0,3,2,0,4,2,0,5,2,3,2,4,1,3,0,3,0,4,5,4,5,4,3,0,4,2,0,5,4),
+(0,3,0,4,0,5,0,3,0,3,4,4,3,2,3,2,3,3,3,3,3,2,4,3,3,2,2,0,3,3,3,3,3,1,3,3,3,0,4,4,3,4,4,1,1,4,4,2,0,3,1,0,1,1,0,4,1,0,2,3,1,3,3,1,3,4,0,3,0,1,0,3,1,3,0,0,1,0,2,0,0,4,4),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,3,0,3,0,2,0,3,0,1,5,4,3,3,3,1,4,2,1,2,3,4,4,2,4,4,5,0,3,1,4,3,4,0,4,3,3,3,2,3,2,5,3,4,3,2,2,3,0,0,3,0,2,1,0,1,2,0,0,0,0,2,1,1,3,1,0,2,0,4,0,3,4,4,4,5,2,0,2,0,0,1,3),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,1,1,0,0,1,1,0,0,0,4,2,1,1,0,1,0,3,2,0,0,3,1,1,1,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,1,0,0,0,2,0,0,0,1,4,0,4,2,1,0,0,0,0,0,1),
+(0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,1,0,0,0,0,0,0,1,0,1,0,0,0,0,3,1,0,0,0,2,0,2,1,0,0,1,2,1,0,1,1,0,0,3,0,0,0,0,0,0,0,0,0,0,0,1,3,1,0,0,0,0,0,1,0,0,2,1,0,0,0,0,0,0,0,0,2),
+(0,4,0,4,0,4,0,3,0,4,4,3,4,2,4,3,2,0,4,4,4,3,5,3,5,3,3,2,4,2,4,3,4,3,1,4,0,2,3,4,4,4,3,3,3,4,4,4,3,4,1,3,4,3,2,1,2,1,3,3,3,4,4,3,3,5,0,4,0,3,0,4,3,3,3,2,1,0,3,0,0,3,3),
+(0,4,0,3,0,3,0,3,0,3,5,5,3,3,3,3,4,3,4,3,3,3,4,4,4,3,3,3,3,4,3,5,3,3,1,3,2,4,5,5,5,5,4,3,4,5,5,3,2,2,3,3,3,3,2,3,3,1,2,3,2,4,3,3,3,4,0,4,0,2,0,4,3,2,2,1,2,0,3,0,0,4,1),
+)
+
+class JapaneseContextAnalysis(object):
+    NUM_OF_CATEGORY = 6
+    DONT_KNOW = -1
+    ENOUGH_REL_THRESHOLD = 100
+    MAX_REL_THRESHOLD = 1000
+    MINIMUM_DATA_THRESHOLD = 4
+
+    def __init__(self):
+        self._total_rel = None
+        self._rel_sample = None
+        self._need_to_skip_char_num = None
+        self._last_char_order = None
+        self._done = None
+        self.reset()
+
+    def reset(self):
+        self._total_rel = 0  # total sequence received
+        # category counters, each integer counts sequence in its category
+        self._rel_sample = [0] * self.NUM_OF_CATEGORY
+        # if last byte in current buffer is not the last byte of a character,
+        # we need to know how many bytes to skip in next buffer
+        self._need_to_skip_char_num = 0
+        self._last_char_order = -1  # The order of previous char
+        # If this flag is set to True, detection is done and conclusion has
+        # been made
+        self._done = False
+
+    def feed(self, byte_str, num_bytes):
+        if self._done:
+            return
+
+        # The buffer we got is byte oriented, and a character may span in more than one
+        # buffers. In case the last one or two byte in last buffer is not
+        # complete, we record how many byte needed to complete that character
+        # and skip these bytes here.  We can choose to record those bytes as
+        # well and analyse the character once it is complete, but since a
+        # character will not make much difference, by simply skipping
+        # this character will simply our logic and improve performance.
+        i = self._need_to_skip_char_num
+        while i < num_bytes:
+            order, char_len = self.get_order(byte_str[i:i + 2])
+            i += char_len
+            if i > num_bytes:
+                self._need_to_skip_char_num = i - num_bytes
+                self._last_char_order = -1
+            else:
+                if (order != -1) and (self._last_char_order != -1):
+                    self._total_rel += 1
+                    if self._total_rel > self.MAX_REL_THRESHOLD:
+                        self._done = True
+                        break
+                    self._rel_sample[jp2CharContext[self._last_char_order][order]] += 1
+                self._last_char_order = order
+
+    def got_enough_data(self):
+        return self._total_rel > self.ENOUGH_REL_THRESHOLD
+
+    def get_confidence(self):
+        # This is just one way to calculate confidence. It works well for me.
+        if self._total_rel > self.MINIMUM_DATA_THRESHOLD:
+            return (self._total_rel - self._rel_sample[0]) / self._total_rel
+        else:
+            return self.DONT_KNOW
+
+    def get_order(self, byte_str):
+        return -1, 1
+
+class SJISContextAnalysis(JapaneseContextAnalysis):
+    def __init__(self):
+        super(SJISContextAnalysis, self).__init__()
+        self._charset_name = "SHIFT_JIS"
+
+    @property
+    def charset_name(self):
+        return self._charset_name
+
+    def get_order(self, byte_str):
+        if not byte_str:
+            return -1, 1
+        # find out current char's byte length
+        first_char = byte_str[0]
+        if (0x81 <= first_char <= 0x9F) or (0xE0 <= first_char <= 0xFC):
+            char_len = 2
+            if (first_char == 0x87) or (0xFA <= first_char <= 0xFC):
+                self._charset_name = "CP932"
+        else:
+            char_len = 1
+
+        # return its order if it is hiragana
+        if len(byte_str) > 1:
+            second_char = byte_str[1]
+            if (first_char == 202) and (0x9F <= second_char <= 0xF1):
+                return second_char - 0x9F, char_len
+
+        return -1, char_len
+
+class EUCJPContextAnalysis(JapaneseContextAnalysis):
+    def get_order(self, byte_str):
+        if not byte_str:
+            return -1, 1
+        # find out current char's byte length
+        first_char = byte_str[0]
+        if (first_char == 0x8E) or (0xA1 <= first_char <= 0xFE):
+            char_len = 2
+        elif first_char == 0x8F:
+            char_len = 3
+        else:
+            char_len = 1
+
+        # return its order if it is hiragana
+        if len(byte_str) > 1:
+            second_char = byte_str[1]
+            if (first_char == 0xA4) and (0xA1 <= second_char <= 0xF3):
+                return second_char - 0xA1, char_len
+
+        return -1, char_len
+
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langbulgarianmodel.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langbulgarianmodel.py
new file mode 100644
index 0000000..e963a50
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langbulgarianmodel.py
@@ -0,0 +1,4650 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from pip._vendor.chardet.sbcharsetprober import SingleByteCharSetModel
+
+
+# 3: Positive
+# 2: Likely
+# 1: Unlikely
+# 0: Negative
+
+BULGARIAN_LANG_MODEL = {
+    63: {  # 'e'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 0,  # 'а'
+        18: 1,  # 'б'
+        9: 1,  # 'в'
+        20: 1,  # 'г'
+        11: 1,  # 'д'
+        3: 1,  # 'е'
+        23: 1,  # 'ж'
+        15: 1,  # 'з'
+        2: 0,  # 'и'
+        26: 1,  # 'й'
+        12: 1,  # 'к'
+        10: 1,  # 'л'
+        14: 1,  # 'м'
+        6: 1,  # 'н'
+        4: 1,  # 'о'
+        13: 1,  # 'п'
+        7: 1,  # 'р'
+        8: 1,  # 'с'
+        5: 1,  # 'т'
+        19: 0,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 1,  # 'ч'
+        27: 1,  # 'ш'
+        24: 1,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    45: {  # '\xad'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 0,  # 'Г'
+        37: 1,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 0,  # 'Л'
+        38: 1,  # 'М'
+        36: 0,  # 'Н'
+        41: 1,  # 'О'
+        30: 1,  # 'П'
+        39: 1,  # 'Р'
+        28: 1,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 0,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 0,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 0,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 0,  # 'о'
+        13: 0,  # 'п'
+        7: 0,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 0,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    31: {  # 'А'
+        63: 0,  # 'e'
+        45: 1,  # '\xad'
+        31: 1,  # 'А'
+        32: 1,  # 'Б'
+        35: 2,  # 'В'
+        43: 1,  # 'Г'
+        37: 2,  # 'Д'
+        44: 2,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 2,  # 'З'
+        40: 1,  # 'И'
+        59: 1,  # 'Й'
+        33: 1,  # 'К'
+        46: 2,  # 'Л'
+        38: 1,  # 'М'
+        36: 2,  # 'Н'
+        41: 1,  # 'О'
+        30: 2,  # 'П'
+        39: 2,  # 'Р'
+        28: 2,  # 'С'
+        34: 2,  # 'Т'
+        51: 1,  # 'У'
+        48: 2,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 1,  # 'Ш'
+        57: 2,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 1,  # 'а'
+        18: 2,  # 'б'
+        9: 2,  # 'в'
+        20: 2,  # 'г'
+        11: 2,  # 'д'
+        3: 1,  # 'е'
+        23: 1,  # 'ж'
+        15: 2,  # 'з'
+        2: 0,  # 'и'
+        26: 2,  # 'й'
+        12: 2,  # 'к'
+        10: 3,  # 'л'
+        14: 2,  # 'м'
+        6: 3,  # 'н'
+        4: 0,  # 'о'
+        13: 2,  # 'п'
+        7: 2,  # 'р'
+        8: 2,  # 'с'
+        5: 2,  # 'т'
+        19: 1,  # 'у'
+        29: 2,  # 'ф'
+        25: 1,  # 'х'
+        22: 1,  # 'ц'
+        21: 1,  # 'ч'
+        27: 1,  # 'ш'
+        24: 0,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    32: {  # 'Б'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 2,  # 'Б'
+        35: 1,  # 'В'
+        43: 1,  # 'Г'
+        37: 2,  # 'Д'
+        44: 1,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 2,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 2,  # 'Н'
+        41: 2,  # 'О'
+        30: 1,  # 'П'
+        39: 1,  # 'Р'
+        28: 2,  # 'С'
+        34: 2,  # 'Т'
+        51: 1,  # 'У'
+        48: 2,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 1,  # 'Щ'
+        61: 2,  # 'Ъ'
+        60: 1,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 1,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 2,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 2,  # 'р'
+        8: 1,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 2,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    35: {  # 'В'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 0,  # 'Г'
+        37: 1,  # 'Д'
+        44: 2,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 1,  # 'О'
+        30: 1,  # 'П'
+        39: 2,  # 'Р'
+        28: 2,  # 'С'
+        34: 1,  # 'Т'
+        51: 1,  # 'У'
+        48: 2,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 1,  # 'Ю'
+        56: 2,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 1,  # 'д'
+        3: 3,  # 'е'
+        23: 1,  # 'ж'
+        15: 2,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 2,  # 'л'
+        14: 1,  # 'м'
+        6: 2,  # 'н'
+        4: 2,  # 'о'
+        13: 1,  # 'п'
+        7: 2,  # 'р'
+        8: 2,  # 'с'
+        5: 2,  # 'т'
+        19: 1,  # 'у'
+        29: 0,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 2,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    43: {  # 'Г'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 1,  # 'Д'
+        44: 2,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 1,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 0,  # 'М'
+        36: 1,  # 'Н'
+        41: 1,  # 'О'
+        30: 0,  # 'П'
+        39: 1,  # 'Р'
+        28: 1,  # 'С'
+        34: 0,  # 'Т'
+        51: 1,  # 'У'
+        48: 1,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 1,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 1,  # 'б'
+        9: 1,  # 'в'
+        20: 0,  # 'г'
+        11: 1,  # 'д'
+        3: 3,  # 'е'
+        23: 1,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 2,  # 'л'
+        14: 1,  # 'м'
+        6: 1,  # 'н'
+        4: 2,  # 'о'
+        13: 0,  # 'п'
+        7: 2,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 1,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    37: {  # 'Д'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 2,  # 'В'
+        43: 1,  # 'Г'
+        37: 2,  # 'Д'
+        44: 2,  # 'Е'
+        55: 2,  # 'Ж'
+        47: 1,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 2,  # 'О'
+        30: 2,  # 'П'
+        39: 1,  # 'Р'
+        28: 2,  # 'С'
+        34: 1,  # 'Т'
+        51: 1,  # 'У'
+        48: 1,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 1,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 2,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 3,  # 'е'
+        23: 3,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 1,  # 'л'
+        14: 1,  # 'м'
+        6: 2,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 2,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    44: {  # 'Е'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 1,  # 'А'
+        32: 1,  # 'Б'
+        35: 2,  # 'В'
+        43: 1,  # 'Г'
+        37: 1,  # 'Д'
+        44: 1,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 1,  # 'З'
+        40: 1,  # 'И'
+        59: 1,  # 'Й'
+        33: 2,  # 'К'
+        46: 2,  # 'Л'
+        38: 1,  # 'М'
+        36: 2,  # 'Н'
+        41: 2,  # 'О'
+        30: 1,  # 'П'
+        39: 2,  # 'Р'
+        28: 2,  # 'С'
+        34: 2,  # 'Т'
+        51: 1,  # 'У'
+        48: 2,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 2,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 1,  # 'Ш'
+        57: 1,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 0,  # 'а'
+        18: 1,  # 'б'
+        9: 2,  # 'в'
+        20: 1,  # 'г'
+        11: 2,  # 'д'
+        3: 0,  # 'е'
+        23: 1,  # 'ж'
+        15: 1,  # 'з'
+        2: 0,  # 'и'
+        26: 1,  # 'й'
+        12: 2,  # 'к'
+        10: 2,  # 'л'
+        14: 2,  # 'м'
+        6: 2,  # 'н'
+        4: 0,  # 'о'
+        13: 1,  # 'п'
+        7: 2,  # 'р'
+        8: 2,  # 'с'
+        5: 1,  # 'т'
+        19: 1,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 1,  # 'ч'
+        27: 1,  # 'ш'
+        24: 1,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    55: {  # 'Ж'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 1,  # 'А'
+        32: 0,  # 'Б'
+        35: 1,  # 'В'
+        43: 0,  # 'Г'
+        37: 1,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 1,  # 'Н'
+        41: 1,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 1,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 1,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 2,  # 'о'
+        13: 1,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 1,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    47: {  # 'З'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 1,  # 'Г'
+        37: 1,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 1,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 2,  # 'Н'
+        41: 1,  # 'О'
+        30: 1,  # 'П'
+        39: 1,  # 'Р'
+        28: 1,  # 'С'
+        34: 1,  # 'Т'
+        51: 1,  # 'У'
+        48: 0,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 2,  # 'в'
+        20: 1,  # 'г'
+        11: 2,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 1,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 2,  # 'л'
+        14: 1,  # 'м'
+        6: 1,  # 'н'
+        4: 1,  # 'о'
+        13: 0,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 1,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    40: {  # 'И'
+        63: 0,  # 'e'
+        45: 1,  # '\xad'
+        31: 1,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 1,  # 'Г'
+        37: 1,  # 'Д'
+        44: 2,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 2,  # 'З'
+        40: 1,  # 'И'
+        59: 1,  # 'Й'
+        33: 2,  # 'К'
+        46: 2,  # 'Л'
+        38: 2,  # 'М'
+        36: 2,  # 'Н'
+        41: 1,  # 'О'
+        30: 1,  # 'П'
+        39: 2,  # 'Р'
+        28: 2,  # 'С'
+        34: 2,  # 'Т'
+        51: 0,  # 'У'
+        48: 1,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 1,  # 'Ш'
+        57: 1,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 2,  # 'Я'
+        1: 1,  # 'а'
+        18: 1,  # 'б'
+        9: 3,  # 'в'
+        20: 2,  # 'г'
+        11: 1,  # 'д'
+        3: 1,  # 'е'
+        23: 0,  # 'ж'
+        15: 3,  # 'з'
+        2: 0,  # 'и'
+        26: 1,  # 'й'
+        12: 1,  # 'к'
+        10: 2,  # 'л'
+        14: 2,  # 'м'
+        6: 2,  # 'н'
+        4: 0,  # 'о'
+        13: 1,  # 'п'
+        7: 2,  # 'р'
+        8: 2,  # 'с'
+        5: 2,  # 'т'
+        19: 0,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 1,  # 'ц'
+        21: 1,  # 'ч'
+        27: 1,  # 'ш'
+        24: 1,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    59: {  # 'Й'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 1,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 1,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 1,  # 'С'
+        34: 1,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 0,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 1,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 0,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 2,  # 'о'
+        13: 0,  # 'п'
+        7: 0,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 0,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    33: {  # 'К'
+        63: 0,  # 'e'
+        45: 1,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 1,  # 'Г'
+        37: 1,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 1,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 0,  # 'М'
+        36: 2,  # 'Н'
+        41: 2,  # 'О'
+        30: 2,  # 'П'
+        39: 1,  # 'Р'
+        28: 2,  # 'С'
+        34: 1,  # 'Т'
+        51: 1,  # 'У'
+        48: 1,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 1,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 1,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 2,  # 'е'
+        23: 1,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 2,  # 'л'
+        14: 1,  # 'м'
+        6: 2,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 3,  # 'р'
+        8: 1,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 1,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    46: {  # 'Л'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 2,  # 'Г'
+        37: 1,  # 'Д'
+        44: 2,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 1,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 0,  # 'М'
+        36: 1,  # 'Н'
+        41: 2,  # 'О'
+        30: 1,  # 'П'
+        39: 0,  # 'Р'
+        28: 1,  # 'С'
+        34: 1,  # 'Т'
+        51: 1,  # 'У'
+        48: 0,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 1,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 2,  # 'а'
+        18: 0,  # 'б'
+        9: 1,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 2,  # 'о'
+        13: 0,  # 'п'
+        7: 0,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    38: {  # 'М'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 2,  # 'В'
+        43: 0,  # 'Г'
+        37: 1,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 1,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 2,  # 'О'
+        30: 1,  # 'П'
+        39: 1,  # 'Р'
+        28: 2,  # 'С'
+        34: 1,  # 'Т'
+        51: 1,  # 'У'
+        48: 1,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 2,  # 'л'
+        14: 0,  # 'м'
+        6: 2,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    36: {  # 'Н'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 2,  # 'Б'
+        35: 1,  # 'В'
+        43: 1,  # 'Г'
+        37: 2,  # 'Д'
+        44: 2,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 1,  # 'З'
+        40: 2,  # 'И'
+        59: 1,  # 'Й'
+        33: 2,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 2,  # 'О'
+        30: 1,  # 'П'
+        39: 1,  # 'Р'
+        28: 2,  # 'С'
+        34: 2,  # 'Т'
+        51: 1,  # 'У'
+        48: 1,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 1,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 1,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 1,  # 'г'
+        11: 0,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 0,  # 'р'
+        8: 0,  # 'с'
+        5: 1,  # 'т'
+        19: 1,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 1,  # 'ш'
+        24: 0,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 2,  # 'ю'
+        16: 2,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    41: {  # 'О'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 1,  # 'А'
+        32: 1,  # 'Б'
+        35: 2,  # 'В'
+        43: 1,  # 'Г'
+        37: 2,  # 'Д'
+        44: 1,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 1,  # 'З'
+        40: 1,  # 'И'
+        59: 1,  # 'Й'
+        33: 2,  # 'К'
+        46: 2,  # 'Л'
+        38: 2,  # 'М'
+        36: 2,  # 'Н'
+        41: 2,  # 'О'
+        30: 1,  # 'П'
+        39: 2,  # 'Р'
+        28: 2,  # 'С'
+        34: 2,  # 'Т'
+        51: 1,  # 'У'
+        48: 1,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 1,  # 'Ш'
+        57: 1,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 1,  # 'а'
+        18: 2,  # 'б'
+        9: 2,  # 'в'
+        20: 2,  # 'г'
+        11: 1,  # 'д'
+        3: 1,  # 'е'
+        23: 1,  # 'ж'
+        15: 1,  # 'з'
+        2: 0,  # 'и'
+        26: 1,  # 'й'
+        12: 2,  # 'к'
+        10: 2,  # 'л'
+        14: 1,  # 'м'
+        6: 1,  # 'н'
+        4: 0,  # 'о'
+        13: 2,  # 'п'
+        7: 2,  # 'р'
+        8: 2,  # 'с'
+        5: 3,  # 'т'
+        19: 1,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 1,  # 'ц'
+        21: 2,  # 'ч'
+        27: 0,  # 'ш'
+        24: 2,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    30: {  # 'П'
+        63: 0,  # 'e'
+        45: 1,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 1,  # 'Г'
+        37: 1,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 1,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 2,  # 'О'
+        30: 2,  # 'П'
+        39: 2,  # 'Р'
+        28: 2,  # 'С'
+        34: 1,  # 'Т'
+        51: 2,  # 'У'
+        48: 1,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 1,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 1,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 2,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 3,  # 'л'
+        14: 0,  # 'м'
+        6: 1,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 3,  # 'р'
+        8: 1,  # 'с'
+        5: 1,  # 'т'
+        19: 2,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 1,  # 'ч'
+        27: 1,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    39: {  # 'Р'
+        63: 0,  # 'e'
+        45: 1,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 2,  # 'Г'
+        37: 2,  # 'Д'
+        44: 2,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 1,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 0,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 2,  # 'О'
+        30: 2,  # 'П'
+        39: 1,  # 'Р'
+        28: 1,  # 'С'
+        34: 1,  # 'Т'
+        51: 1,  # 'У'
+        48: 1,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 1,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 1,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 0,  # 'р'
+        8: 1,  # 'с'
+        5: 0,  # 'т'
+        19: 3,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    28: {  # 'С'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 3,  # 'А'
+        32: 2,  # 'Б'
+        35: 2,  # 'В'
+        43: 1,  # 'Г'
+        37: 2,  # 'Д'
+        44: 2,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 1,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 2,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 2,  # 'О'
+        30: 2,  # 'П'
+        39: 1,  # 'Р'
+        28: 2,  # 'С'
+        34: 2,  # 'Т'
+        51: 1,  # 'У'
+        48: 1,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 1,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 2,  # 'в'
+        20: 1,  # 'г'
+        11: 1,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 2,  # 'к'
+        10: 3,  # 'л'
+        14: 2,  # 'м'
+        6: 1,  # 'н'
+        4: 3,  # 'о'
+        13: 3,  # 'п'
+        7: 2,  # 'р'
+        8: 0,  # 'с'
+        5: 3,  # 'т'
+        19: 2,  # 'у'
+        29: 2,  # 'ф'
+        25: 1,  # 'х'
+        22: 1,  # 'ц'
+        21: 1,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    34: {  # 'Т'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 2,  # 'Б'
+        35: 1,  # 'В'
+        43: 0,  # 'Г'
+        37: 1,  # 'Д'
+        44: 2,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 2,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 2,  # 'О'
+        30: 1,  # 'П'
+        39: 2,  # 'Р'
+        28: 2,  # 'С'
+        34: 1,  # 'Т'
+        51: 1,  # 'У'
+        48: 1,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 1,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 1,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 1,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 1,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 3,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 2,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    51: {  # 'У'
+        63: 0,  # 'e'
+        45: 1,  # '\xad'
+        31: 1,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 1,  # 'Г'
+        37: 1,  # 'Д'
+        44: 2,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 1,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 0,  # 'О'
+        30: 1,  # 'П'
+        39: 1,  # 'Р'
+        28: 1,  # 'С'
+        34: 2,  # 'Т'
+        51: 0,  # 'У'
+        48: 1,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 1,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 1,  # 'а'
+        18: 1,  # 'б'
+        9: 2,  # 'в'
+        20: 1,  # 'г'
+        11: 1,  # 'д'
+        3: 2,  # 'е'
+        23: 1,  # 'ж'
+        15: 1,  # 'з'
+        2: 2,  # 'и'
+        26: 1,  # 'й'
+        12: 2,  # 'к'
+        10: 1,  # 'л'
+        14: 1,  # 'м'
+        6: 2,  # 'н'
+        4: 2,  # 'о'
+        13: 1,  # 'п'
+        7: 1,  # 'р'
+        8: 2,  # 'с'
+        5: 1,  # 'т'
+        19: 1,  # 'у'
+        29: 0,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 2,  # 'ч'
+        27: 1,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    48: {  # 'Ф'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 0,  # 'М'
+        36: 1,  # 'Н'
+        41: 1,  # 'О'
+        30: 2,  # 'П'
+        39: 1,  # 'Р'
+        28: 2,  # 'С'
+        34: 1,  # 'Т'
+        51: 1,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 2,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 2,  # 'о'
+        13: 0,  # 'п'
+        7: 2,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 1,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    49: {  # 'Х'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 1,  # 'А'
+        32: 0,  # 'Б'
+        35: 1,  # 'В'
+        43: 1,  # 'Г'
+        37: 1,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 1,  # 'О'
+        30: 1,  # 'П'
+        39: 1,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 0,  # 'б'
+        9: 1,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 1,  # 'л'
+        14: 1,  # 'м'
+        6: 0,  # 'н'
+        4: 2,  # 'о'
+        13: 0,  # 'п'
+        7: 2,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    53: {  # 'Ц'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 1,  # 'А'
+        32: 0,  # 'Б'
+        35: 1,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 2,  # 'И'
+        59: 0,  # 'Й'
+        33: 2,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 1,  # 'Р'
+        28: 2,  # 'С'
+        34: 0,  # 'Т'
+        51: 1,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 0,  # 'б'
+        9: 2,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 1,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 1,  # 'о'
+        13: 0,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 1,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    50: {  # 'Ч'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 2,  # 'А'
+        32: 1,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 1,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 0,  # 'М'
+        36: 1,  # 'Н'
+        41: 1,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 1,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 3,  # 'е'
+        23: 1,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 1,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 2,  # 'о'
+        13: 0,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    54: {  # 'Ш'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 1,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 1,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 1,  # 'Н'
+        41: 1,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 1,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 0,  # 'б'
+        9: 2,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 2,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 1,  # 'л'
+        14: 1,  # 'м'
+        6: 1,  # 'н'
+        4: 2,  # 'о'
+        13: 1,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 1,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    57: {  # 'Щ'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 1,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 1,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 1,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 1,  # 'о'
+        13: 0,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 1,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    61: {  # 'Ъ'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 0,  # 'Г'
+        37: 1,  # 'Д'
+        44: 0,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 1,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 2,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 0,  # 'О'
+        30: 1,  # 'П'
+        39: 2,  # 'Р'
+        28: 1,  # 'С'
+        34: 1,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 1,  # 'Х'
+        53: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        54: 1,  # 'Ш'
+        57: 1,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 0,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 0,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 0,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 1,  # 'л'
+        14: 0,  # 'м'
+        6: 1,  # 'н'
+        4: 0,  # 'о'
+        13: 0,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 0,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    60: {  # 'Ю'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 1,  # 'А'
+        32: 1,  # 'Б'
+        35: 0,  # 'В'
+        43: 1,  # 'Г'
+        37: 1,  # 'Д'
+        44: 0,  # 'Е'
+        55: 1,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 0,  # 'М'
+        36: 1,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 1,  # 'Р'
+        28: 1,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 0,  # 'а'
+        18: 1,  # 'б'
+        9: 1,  # 'в'
+        20: 2,  # 'г'
+        11: 1,  # 'д'
+        3: 0,  # 'е'
+        23: 2,  # 'ж'
+        15: 1,  # 'з'
+        2: 1,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 1,  # 'л'
+        14: 1,  # 'м'
+        6: 1,  # 'н'
+        4: 0,  # 'о'
+        13: 1,  # 'п'
+        7: 1,  # 'р'
+        8: 1,  # 'с'
+        5: 1,  # 'т'
+        19: 0,  # 'у'
+        29: 0,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    56: {  # 'Я'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 1,  # 'Б'
+        35: 1,  # 'В'
+        43: 1,  # 'Г'
+        37: 1,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 1,  # 'Л'
+        38: 1,  # 'М'
+        36: 1,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 1,  # 'С'
+        34: 2,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 0,  # 'а'
+        18: 1,  # 'б'
+        9: 1,  # 'в'
+        20: 1,  # 'г'
+        11: 1,  # 'д'
+        3: 0,  # 'е'
+        23: 0,  # 'ж'
+        15: 1,  # 'з'
+        2: 1,  # 'и'
+        26: 1,  # 'й'
+        12: 1,  # 'к'
+        10: 1,  # 'л'
+        14: 2,  # 'м'
+        6: 2,  # 'н'
+        4: 0,  # 'о'
+        13: 2,  # 'п'
+        7: 1,  # 'р'
+        8: 1,  # 'с'
+        5: 1,  # 'т'
+        19: 0,  # 'у'
+        29: 0,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 1,  # 'ш'
+        24: 0,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    1: {  # 'а'
+        63: 1,  # 'e'
+        45: 1,  # '\xad'
+        31: 1,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 1,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 1,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 3,  # 'г'
+        11: 3,  # 'д'
+        3: 3,  # 'е'
+        23: 3,  # 'ж'
+        15: 3,  # 'з'
+        2: 3,  # 'и'
+        26: 3,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 2,  # 'о'
+        13: 3,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 3,  # 'у'
+        29: 3,  # 'ф'
+        25: 3,  # 'х'
+        22: 3,  # 'ц'
+        21: 3,  # 'ч'
+        27: 3,  # 'ш'
+        24: 3,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    18: {  # 'б'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 3,  # 'в'
+        20: 1,  # 'г'
+        11: 2,  # 'д'
+        3: 3,  # 'е'
+        23: 1,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 3,  # 'л'
+        14: 2,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 1,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 0,  # 'т'
+        19: 3,  # 'у'
+        29: 0,  # 'ф'
+        25: 2,  # 'х'
+        22: 1,  # 'ц'
+        21: 1,  # 'ч'
+        27: 1,  # 'ш'
+        24: 3,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    9: {  # 'в'
+        63: 1,  # 'e'
+        45: 1,  # '\xad'
+        31: 0,  # 'А'
+        32: 1,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 1,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 0,  # 'в'
+        20: 2,  # 'г'
+        11: 3,  # 'д'
+        3: 3,  # 'е'
+        23: 1,  # 'ж'
+        15: 3,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 2,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 2,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 2,  # 'х'
+        22: 2,  # 'ц'
+        21: 3,  # 'ч'
+        27: 2,  # 'ш'
+        24: 1,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    20: {  # 'г'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 2,  # 'в'
+        20: 1,  # 'г'
+        11: 2,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 3,  # 'л'
+        14: 1,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 1,  # 'п'
+        7: 3,  # 'р'
+        8: 2,  # 'с'
+        5: 2,  # 'т'
+        19: 3,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 1,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    11: {  # 'д'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 2,  # 'б'
+        9: 3,  # 'в'
+        20: 2,  # 'г'
+        11: 2,  # 'д'
+        3: 3,  # 'е'
+        23: 3,  # 'ж'
+        15: 2,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 3,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 1,  # 'т'
+        19: 3,  # 'у'
+        29: 1,  # 'ф'
+        25: 2,  # 'х'
+        22: 2,  # 'ц'
+        21: 2,  # 'ч'
+        27: 1,  # 'ш'
+        24: 1,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    3: {  # 'е'
+        63: 0,  # 'e'
+        45: 1,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 3,  # 'г'
+        11: 3,  # 'д'
+        3: 2,  # 'е'
+        23: 3,  # 'ж'
+        15: 3,  # 'з'
+        2: 2,  # 'и'
+        26: 3,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 3,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 2,  # 'у'
+        29: 3,  # 'ф'
+        25: 3,  # 'х'
+        22: 3,  # 'ц'
+        21: 3,  # 'ч'
+        27: 3,  # 'ш'
+        24: 3,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    23: {  # 'ж'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 3,  # 'б'
+        9: 2,  # 'в'
+        20: 1,  # 'г'
+        11: 3,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 2,  # 'к'
+        10: 1,  # 'л'
+        14: 1,  # 'м'
+        6: 3,  # 'н'
+        4: 2,  # 'о'
+        13: 1,  # 'п'
+        7: 1,  # 'р'
+        8: 1,  # 'с'
+        5: 1,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 1,  # 'ц'
+        21: 1,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    15: {  # 'з'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 3,  # 'г'
+        11: 3,  # 'д'
+        3: 3,  # 'е'
+        23: 1,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 3,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 3,  # 'у'
+        29: 1,  # 'ф'
+        25: 2,  # 'х'
+        22: 2,  # 'ц'
+        21: 2,  # 'ч'
+        27: 2,  # 'ш'
+        24: 1,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 2,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    2: {  # 'и'
+        63: 1,  # 'e'
+        45: 1,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 1,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 1,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 1,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 1,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 3,  # 'г'
+        11: 3,  # 'д'
+        3: 3,  # 'е'
+        23: 3,  # 'ж'
+        15: 3,  # 'з'
+        2: 3,  # 'и'
+        26: 3,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 3,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 2,  # 'у'
+        29: 3,  # 'ф'
+        25: 3,  # 'х'
+        22: 3,  # 'ц'
+        21: 3,  # 'ч'
+        27: 3,  # 'ш'
+        24: 3,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    26: {  # 'й'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 1,  # 'а'
+        18: 2,  # 'б'
+        9: 2,  # 'в'
+        20: 1,  # 'г'
+        11: 2,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 2,  # 'з'
+        2: 1,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 2,  # 'л'
+        14: 2,  # 'м'
+        6: 3,  # 'н'
+        4: 2,  # 'о'
+        13: 1,  # 'п'
+        7: 2,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 1,  # 'у'
+        29: 2,  # 'ф'
+        25: 1,  # 'х'
+        22: 2,  # 'ц'
+        21: 2,  # 'ч'
+        27: 1,  # 'ш'
+        24: 1,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    12: {  # 'к'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 1,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 1,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 3,  # 'в'
+        20: 2,  # 'г'
+        11: 1,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 2,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 3,  # 'л'
+        14: 2,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 1,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 3,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 3,  # 'ц'
+        21: 2,  # 'ч'
+        27: 1,  # 'ш'
+        24: 0,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    10: {  # 'л'
+        63: 1,  # 'e'
+        45: 1,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 1,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 3,  # 'г'
+        11: 2,  # 'д'
+        3: 3,  # 'е'
+        23: 3,  # 'ж'
+        15: 2,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 1,  # 'л'
+        14: 2,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 2,  # 'п'
+        7: 2,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 3,  # 'у'
+        29: 2,  # 'ф'
+        25: 2,  # 'х'
+        22: 2,  # 'ц'
+        21: 2,  # 'ч'
+        27: 2,  # 'ш'
+        24: 1,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 2,  # 'ь'
+        42: 3,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    14: {  # 'м'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 1,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 1,  # 'г'
+        11: 1,  # 'д'
+        3: 3,  # 'е'
+        23: 1,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 2,  # 'к'
+        10: 3,  # 'л'
+        14: 1,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 3,  # 'п'
+        7: 2,  # 'р'
+        8: 2,  # 'с'
+        5: 1,  # 'т'
+        19: 3,  # 'у'
+        29: 2,  # 'ф'
+        25: 1,  # 'х'
+        22: 2,  # 'ц'
+        21: 2,  # 'ч'
+        27: 2,  # 'ш'
+        24: 1,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    6: {  # 'н'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 1,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 2,  # 'б'
+        9: 2,  # 'в'
+        20: 3,  # 'г'
+        11: 3,  # 'д'
+        3: 3,  # 'е'
+        23: 2,  # 'ж'
+        15: 2,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 2,  # 'л'
+        14: 1,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 1,  # 'п'
+        7: 2,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 3,  # 'у'
+        29: 3,  # 'ф'
+        25: 2,  # 'х'
+        22: 3,  # 'ц'
+        21: 3,  # 'ч'
+        27: 2,  # 'ш'
+        24: 1,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 2,  # 'ь'
+        42: 2,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    4: {  # 'о'
+        63: 0,  # 'e'
+        45: 1,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 2,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 3,  # 'г'
+        11: 3,  # 'д'
+        3: 3,  # 'е'
+        23: 3,  # 'ж'
+        15: 3,  # 'з'
+        2: 3,  # 'и'
+        26: 3,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 2,  # 'о'
+        13: 3,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 2,  # 'у'
+        29: 3,  # 'ф'
+        25: 3,  # 'х'
+        22: 3,  # 'ц'
+        21: 3,  # 'ч'
+        27: 3,  # 'ш'
+        24: 3,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    13: {  # 'п'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 2,  # 'в'
+        20: 1,  # 'г'
+        11: 1,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 1,  # 'й'
+        12: 2,  # 'к'
+        10: 3,  # 'л'
+        14: 1,  # 'м'
+        6: 2,  # 'н'
+        4: 3,  # 'о'
+        13: 1,  # 'п'
+        7: 3,  # 'р'
+        8: 2,  # 'с'
+        5: 2,  # 'т'
+        19: 3,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 2,  # 'ц'
+        21: 2,  # 'ч'
+        27: 1,  # 'ш'
+        24: 1,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 2,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    7: {  # 'р'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 3,  # 'г'
+        11: 3,  # 'д'
+        3: 3,  # 'е'
+        23: 3,  # 'ж'
+        15: 2,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 2,  # 'п'
+        7: 1,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 3,  # 'у'
+        29: 2,  # 'ф'
+        25: 3,  # 'х'
+        22: 3,  # 'ц'
+        21: 2,  # 'ч'
+        27: 3,  # 'ш'
+        24: 1,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 2,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    8: {  # 'с'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 2,  # 'б'
+        9: 3,  # 'в'
+        20: 2,  # 'г'
+        11: 2,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 3,  # 'п'
+        7: 3,  # 'р'
+        8: 1,  # 'с'
+        5: 3,  # 'т'
+        19: 3,  # 'у'
+        29: 2,  # 'ф'
+        25: 2,  # 'х'
+        22: 2,  # 'ц'
+        21: 2,  # 'ч'
+        27: 2,  # 'ш'
+        24: 0,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 2,  # 'ь'
+        42: 2,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    5: {  # 'т'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 2,  # 'г'
+        11: 2,  # 'д'
+        3: 3,  # 'е'
+        23: 1,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 2,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 2,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 3,  # 'у'
+        29: 1,  # 'ф'
+        25: 2,  # 'х'
+        22: 2,  # 'ц'
+        21: 2,  # 'ч'
+        27: 1,  # 'ш'
+        24: 1,  # 'щ'
+        17: 3,  # 'ъ'
+        52: 2,  # 'ь'
+        42: 2,  # 'ю'
+        16: 3,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    19: {  # 'у'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 3,  # 'г'
+        11: 3,  # 'д'
+        3: 2,  # 'е'
+        23: 3,  # 'ж'
+        15: 3,  # 'з'
+        2: 2,  # 'и'
+        26: 2,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 2,  # 'о'
+        13: 3,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 1,  # 'у'
+        29: 2,  # 'ф'
+        25: 2,  # 'х'
+        22: 2,  # 'ц'
+        21: 3,  # 'ч'
+        27: 3,  # 'ш'
+        24: 2,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    29: {  # 'ф'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 1,  # 'в'
+        20: 1,  # 'г'
+        11: 0,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 2,  # 'к'
+        10: 2,  # 'л'
+        14: 1,  # 'м'
+        6: 1,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 2,  # 'р'
+        8: 2,  # 'с'
+        5: 2,  # 'т'
+        19: 2,  # 'у'
+        29: 0,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 1,  # 'ч'
+        27: 1,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 2,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    25: {  # 'х'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 3,  # 'в'
+        20: 0,  # 'г'
+        11: 1,  # 'д'
+        3: 2,  # 'е'
+        23: 0,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 2,  # 'л'
+        14: 2,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 1,  # 'п'
+        7: 3,  # 'р'
+        8: 1,  # 'с'
+        5: 2,  # 'т'
+        19: 3,  # 'у'
+        29: 0,  # 'ф'
+        25: 1,  # 'х'
+        22: 0,  # 'ц'
+        21: 1,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    22: {  # 'ц'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 2,  # 'в'
+        20: 1,  # 'г'
+        11: 1,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 1,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 2,  # 'к'
+        10: 1,  # 'л'
+        14: 1,  # 'м'
+        6: 1,  # 'н'
+        4: 2,  # 'о'
+        13: 1,  # 'п'
+        7: 1,  # 'р'
+        8: 1,  # 'с'
+        5: 1,  # 'т'
+        19: 2,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 1,  # 'ц'
+        21: 1,  # 'ч'
+        27: 1,  # 'ш'
+        24: 1,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 0,  # 'ю'
+        16: 2,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    21: {  # 'ч'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 1,  # 'б'
+        9: 3,  # 'в'
+        20: 1,  # 'г'
+        11: 0,  # 'д'
+        3: 3,  # 'е'
+        23: 1,  # 'ж'
+        15: 0,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 2,  # 'л'
+        14: 2,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 2,  # 'р'
+        8: 0,  # 'с'
+        5: 2,  # 'т'
+        19: 3,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 1,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    27: {  # 'ш'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 2,  # 'в'
+        20: 0,  # 'г'
+        11: 1,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 3,  # 'к'
+        10: 2,  # 'л'
+        14: 1,  # 'м'
+        6: 3,  # 'н'
+        4: 2,  # 'о'
+        13: 2,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 1,  # 'т'
+        19: 2,  # 'у'
+        29: 1,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 1,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 2,  # 'ъ'
+        52: 1,  # 'ь'
+        42: 1,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    24: {  # 'щ'
+        63: 1,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 3,  # 'а'
+        18: 0,  # 'б'
+        9: 1,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 3,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 3,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 2,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 1,  # 'р'
+        8: 0,  # 'с'
+        5: 2,  # 'т'
+        19: 3,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 1,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 2,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    17: {  # 'ъ'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 1,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 3,  # 'г'
+        11: 3,  # 'д'
+        3: 2,  # 'е'
+        23: 3,  # 'ж'
+        15: 3,  # 'з'
+        2: 1,  # 'и'
+        26: 2,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 3,  # 'о'
+        13: 3,  # 'п'
+        7: 3,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 1,  # 'у'
+        29: 1,  # 'ф'
+        25: 2,  # 'х'
+        22: 2,  # 'ц'
+        21: 3,  # 'ч'
+        27: 2,  # 'ш'
+        24: 3,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 2,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    52: {  # 'ь'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 0,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 1,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 0,  # 'и'
+        26: 0,  # 'й'
+        12: 1,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 1,  # 'н'
+        4: 3,  # 'о'
+        13: 0,  # 'п'
+        7: 0,  # 'р'
+        8: 0,  # 'с'
+        5: 1,  # 'т'
+        19: 0,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 1,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 1,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    42: {  # 'ю'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 1,  # 'а'
+        18: 2,  # 'б'
+        9: 1,  # 'в'
+        20: 2,  # 'г'
+        11: 2,  # 'д'
+        3: 1,  # 'е'
+        23: 2,  # 'ж'
+        15: 2,  # 'з'
+        2: 1,  # 'и'
+        26: 1,  # 'й'
+        12: 2,  # 'к'
+        10: 2,  # 'л'
+        14: 2,  # 'м'
+        6: 2,  # 'н'
+        4: 1,  # 'о'
+        13: 1,  # 'п'
+        7: 2,  # 'р'
+        8: 2,  # 'с'
+        5: 2,  # 'т'
+        19: 1,  # 'у'
+        29: 1,  # 'ф'
+        25: 1,  # 'х'
+        22: 2,  # 'ц'
+        21: 3,  # 'ч'
+        27: 1,  # 'ш'
+        24: 1,  # 'щ'
+        17: 1,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    16: {  # 'я'
+        63: 0,  # 'e'
+        45: 1,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 0,  # 'а'
+        18: 3,  # 'б'
+        9: 3,  # 'в'
+        20: 2,  # 'г'
+        11: 3,  # 'д'
+        3: 2,  # 'е'
+        23: 1,  # 'ж'
+        15: 2,  # 'з'
+        2: 1,  # 'и'
+        26: 2,  # 'й'
+        12: 3,  # 'к'
+        10: 3,  # 'л'
+        14: 3,  # 'м'
+        6: 3,  # 'н'
+        4: 1,  # 'о'
+        13: 2,  # 'п'
+        7: 2,  # 'р'
+        8: 3,  # 'с'
+        5: 3,  # 'т'
+        19: 1,  # 'у'
+        29: 1,  # 'ф'
+        25: 3,  # 'х'
+        22: 2,  # 'ц'
+        21: 1,  # 'ч'
+        27: 1,  # 'ш'
+        24: 2,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 1,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    58: {  # 'є'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 0,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 0,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 0,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 0,  # 'о'
+        13: 0,  # 'п'
+        7: 0,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 0,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+    62: {  # '№'
+        63: 0,  # 'e'
+        45: 0,  # '\xad'
+        31: 0,  # 'А'
+        32: 0,  # 'Б'
+        35: 0,  # 'В'
+        43: 0,  # 'Г'
+        37: 0,  # 'Д'
+        44: 0,  # 'Е'
+        55: 0,  # 'Ж'
+        47: 0,  # 'З'
+        40: 0,  # 'И'
+        59: 0,  # 'Й'
+        33: 0,  # 'К'
+        46: 0,  # 'Л'
+        38: 0,  # 'М'
+        36: 0,  # 'Н'
+        41: 0,  # 'О'
+        30: 0,  # 'П'
+        39: 0,  # 'Р'
+        28: 0,  # 'С'
+        34: 0,  # 'Т'
+        51: 0,  # 'У'
+        48: 0,  # 'Ф'
+        49: 0,  # 'Х'
+        53: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        54: 0,  # 'Ш'
+        57: 0,  # 'Щ'
+        61: 0,  # 'Ъ'
+        60: 0,  # 'Ю'
+        56: 0,  # 'Я'
+        1: 0,  # 'а'
+        18: 0,  # 'б'
+        9: 0,  # 'в'
+        20: 0,  # 'г'
+        11: 0,  # 'д'
+        3: 0,  # 'е'
+        23: 0,  # 'ж'
+        15: 0,  # 'з'
+        2: 0,  # 'и'
+        26: 0,  # 'й'
+        12: 0,  # 'к'
+        10: 0,  # 'л'
+        14: 0,  # 'м'
+        6: 0,  # 'н'
+        4: 0,  # 'о'
+        13: 0,  # 'п'
+        7: 0,  # 'р'
+        8: 0,  # 'с'
+        5: 0,  # 'т'
+        19: 0,  # 'у'
+        29: 0,  # 'ф'
+        25: 0,  # 'х'
+        22: 0,  # 'ц'
+        21: 0,  # 'ч'
+        27: 0,  # 'ш'
+        24: 0,  # 'щ'
+        17: 0,  # 'ъ'
+        52: 0,  # 'ь'
+        42: 0,  # 'ю'
+        16: 0,  # 'я'
+        58: 0,  # 'є'
+        62: 0,  # '№'
+    },
+}
+
+# 255: Undefined characters that did not exist in training text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+# 251: Control characters
+
+# Character Mapping Table(s):
+ISO_8859_5_BULGARIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 77,  # 'A'
+     66: 90,  # 'B'
+     67: 99,  # 'C'
+     68: 100,  # 'D'
+     69: 72,  # 'E'
+     70: 109,  # 'F'
+     71: 107,  # 'G'
+     72: 101,  # 'H'
+     73: 79,  # 'I'
+     74: 185,  # 'J'
+     75: 81,  # 'K'
+     76: 102,  # 'L'
+     77: 76,  # 'M'
+     78: 94,  # 'N'
+     79: 82,  # 'O'
+     80: 110,  # 'P'
+     81: 186,  # 'Q'
+     82: 108,  # 'R'
+     83: 91,  # 'S'
+     84: 74,  # 'T'
+     85: 119,  # 'U'
+     86: 84,  # 'V'
+     87: 96,  # 'W'
+     88: 111,  # 'X'
+     89: 187,  # 'Y'
+     90: 115,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 65,  # 'a'
+     98: 69,  # 'b'
+     99: 70,  # 'c'
+     100: 66,  # 'd'
+     101: 63,  # 'e'
+     102: 68,  # 'f'
+     103: 112,  # 'g'
+     104: 103,  # 'h'
+     105: 92,  # 'i'
+     106: 194,  # 'j'
+     107: 104,  # 'k'
+     108: 95,  # 'l'
+     109: 86,  # 'm'
+     110: 87,  # 'n'
+     111: 71,  # 'o'
+     112: 116,  # 'p'
+     113: 195,  # 'q'
+     114: 85,  # 'r'
+     115: 93,  # 's'
+     116: 97,  # 't'
+     117: 113,  # 'u'
+     118: 196,  # 'v'
+     119: 197,  # 'w'
+     120: 198,  # 'x'
+     121: 199,  # 'y'
+     122: 200,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 194,  # '\x80'
+     129: 195,  # '\x81'
+     130: 196,  # '\x82'
+     131: 197,  # '\x83'
+     132: 198,  # '\x84'
+     133: 199,  # '\x85'
+     134: 200,  # '\x86'
+     135: 201,  # '\x87'
+     136: 202,  # '\x88'
+     137: 203,  # '\x89'
+     138: 204,  # '\x8a'
+     139: 205,  # '\x8b'
+     140: 206,  # '\x8c'
+     141: 207,  # '\x8d'
+     142: 208,  # '\x8e'
+     143: 209,  # '\x8f'
+     144: 210,  # '\x90'
+     145: 211,  # '\x91'
+     146: 212,  # '\x92'
+     147: 213,  # '\x93'
+     148: 214,  # '\x94'
+     149: 215,  # '\x95'
+     150: 216,  # '\x96'
+     151: 217,  # '\x97'
+     152: 218,  # '\x98'
+     153: 219,  # '\x99'
+     154: 220,  # '\x9a'
+     155: 221,  # '\x9b'
+     156: 222,  # '\x9c'
+     157: 223,  # '\x9d'
+     158: 224,  # '\x9e'
+     159: 225,  # '\x9f'
+     160: 81,  # '\xa0'
+     161: 226,  # 'Ё'
+     162: 227,  # 'Ђ'
+     163: 228,  # 'Ѓ'
+     164: 229,  # 'Є'
+     165: 230,  # 'Ѕ'
+     166: 105,  # 'І'
+     167: 231,  # 'Ї'
+     168: 232,  # 'Ј'
+     169: 233,  # 'Љ'
+     170: 234,  # 'Њ'
+     171: 235,  # 'Ћ'
+     172: 236,  # 'Ќ'
+     173: 45,  # '\xad'
+     174: 237,  # 'Ў'
+     175: 238,  # 'Џ'
+     176: 31,  # 'А'
+     177: 32,  # 'Б'
+     178: 35,  # 'В'
+     179: 43,  # 'Г'
+     180: 37,  # 'Д'
+     181: 44,  # 'Е'
+     182: 55,  # 'Ж'
+     183: 47,  # 'З'
+     184: 40,  # 'И'
+     185: 59,  # 'Й'
+     186: 33,  # 'К'
+     187: 46,  # 'Л'
+     188: 38,  # 'М'
+     189: 36,  # 'Н'
+     190: 41,  # 'О'
+     191: 30,  # 'П'
+     192: 39,  # 'Р'
+     193: 28,  # 'С'
+     194: 34,  # 'Т'
+     195: 51,  # 'У'
+     196: 48,  # 'Ф'
+     197: 49,  # 'Х'
+     198: 53,  # 'Ц'
+     199: 50,  # 'Ч'
+     200: 54,  # 'Ш'
+     201: 57,  # 'Щ'
+     202: 61,  # 'Ъ'
+     203: 239,  # 'Ы'
+     204: 67,  # 'Ь'
+     205: 240,  # 'Э'
+     206: 60,  # 'Ю'
+     207: 56,  # 'Я'
+     208: 1,  # 'а'
+     209: 18,  # 'б'
+     210: 9,  # 'в'
+     211: 20,  # 'г'
+     212: 11,  # 'д'
+     213: 3,  # 'е'
+     214: 23,  # 'ж'
+     215: 15,  # 'з'
+     216: 2,  # 'и'
+     217: 26,  # 'й'
+     218: 12,  # 'к'
+     219: 10,  # 'л'
+     220: 14,  # 'м'
+     221: 6,  # 'н'
+     222: 4,  # 'о'
+     223: 13,  # 'п'
+     224: 7,  # 'р'
+     225: 8,  # 'с'
+     226: 5,  # 'т'
+     227: 19,  # 'у'
+     228: 29,  # 'ф'
+     229: 25,  # 'х'
+     230: 22,  # 'ц'
+     231: 21,  # 'ч'
+     232: 27,  # 'ш'
+     233: 24,  # 'щ'
+     234: 17,  # 'ъ'
+     235: 75,  # 'ы'
+     236: 52,  # 'ь'
+     237: 241,  # 'э'
+     238: 42,  # 'ю'
+     239: 16,  # 'я'
+     240: 62,  # '№'
+     241: 242,  # 'ё'
+     242: 243,  # 'ђ'
+     243: 244,  # 'ѓ'
+     244: 58,  # 'є'
+     245: 245,  # 'ѕ'
+     246: 98,  # 'і'
+     247: 246,  # 'ї'
+     248: 247,  # 'ј'
+     249: 248,  # 'љ'
+     250: 249,  # 'њ'
+     251: 250,  # 'ћ'
+     252: 251,  # 'ќ'
+     253: 91,  # '§'
+     254: 252,  # 'ў'
+     255: 253,  # 'џ'
+}
+
+ISO_8859_5_BULGARIAN_MODEL = SingleByteCharSetModel(charset_name='ISO-8859-5',
+                                                    language='Bulgarian',
+                                                    char_to_order_map=ISO_8859_5_BULGARIAN_CHAR_TO_ORDER,
+                                                    language_model=BULGARIAN_LANG_MODEL,
+                                                    typical_positive_ratio=0.969392,
+                                                    keep_ascii_letters=False,
+                                                    alphabet='АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЬЮЯабвгдежзийклмнопрстуфхцчшщъьюя')
+
+WINDOWS_1251_BULGARIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 77,  # 'A'
+     66: 90,  # 'B'
+     67: 99,  # 'C'
+     68: 100,  # 'D'
+     69: 72,  # 'E'
+     70: 109,  # 'F'
+     71: 107,  # 'G'
+     72: 101,  # 'H'
+     73: 79,  # 'I'
+     74: 185,  # 'J'
+     75: 81,  # 'K'
+     76: 102,  # 'L'
+     77: 76,  # 'M'
+     78: 94,  # 'N'
+     79: 82,  # 'O'
+     80: 110,  # 'P'
+     81: 186,  # 'Q'
+     82: 108,  # 'R'
+     83: 91,  # 'S'
+     84: 74,  # 'T'
+     85: 119,  # 'U'
+     86: 84,  # 'V'
+     87: 96,  # 'W'
+     88: 111,  # 'X'
+     89: 187,  # 'Y'
+     90: 115,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 65,  # 'a'
+     98: 69,  # 'b'
+     99: 70,  # 'c'
+     100: 66,  # 'd'
+     101: 63,  # 'e'
+     102: 68,  # 'f'
+     103: 112,  # 'g'
+     104: 103,  # 'h'
+     105: 92,  # 'i'
+     106: 194,  # 'j'
+     107: 104,  # 'k'
+     108: 95,  # 'l'
+     109: 86,  # 'm'
+     110: 87,  # 'n'
+     111: 71,  # 'o'
+     112: 116,  # 'p'
+     113: 195,  # 'q'
+     114: 85,  # 'r'
+     115: 93,  # 's'
+     116: 97,  # 't'
+     117: 113,  # 'u'
+     118: 196,  # 'v'
+     119: 197,  # 'w'
+     120: 198,  # 'x'
+     121: 199,  # 'y'
+     122: 200,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 206,  # 'Ђ'
+     129: 207,  # 'Ѓ'
+     130: 208,  # '‚'
+     131: 209,  # 'ѓ'
+     132: 210,  # '„'
+     133: 211,  # '…'
+     134: 212,  # '†'
+     135: 213,  # '‡'
+     136: 120,  # '€'
+     137: 214,  # '‰'
+     138: 215,  # 'Љ'
+     139: 216,  # '‹'
+     140: 217,  # 'Њ'
+     141: 218,  # 'Ќ'
+     142: 219,  # 'Ћ'
+     143: 220,  # 'Џ'
+     144: 221,  # 'ђ'
+     145: 78,  # '‘'
+     146: 64,  # '’'
+     147: 83,  # '“'
+     148: 121,  # '”'
+     149: 98,  # '•'
+     150: 117,  # '–'
+     151: 105,  # '—'
+     152: 222,  # None
+     153: 223,  # '™'
+     154: 224,  # 'љ'
+     155: 225,  # '›'
+     156: 226,  # 'њ'
+     157: 227,  # 'ќ'
+     158: 228,  # 'ћ'
+     159: 229,  # 'џ'
+     160: 88,  # '\xa0'
+     161: 230,  # 'Ў'
+     162: 231,  # 'ў'
+     163: 232,  # 'Ј'
+     164: 233,  # '¤'
+     165: 122,  # 'Ґ'
+     166: 89,  # '¦'
+     167: 106,  # '§'
+     168: 234,  # 'Ё'
+     169: 235,  # '©'
+     170: 236,  # 'Є'
+     171: 237,  # '«'
+     172: 238,  # '¬'
+     173: 45,  # '\xad'
+     174: 239,  # '®'
+     175: 240,  # 'Ї'
+     176: 73,  # '°'
+     177: 80,  # '±'
+     178: 118,  # 'І'
+     179: 114,  # 'і'
+     180: 241,  # 'ґ'
+     181: 242,  # 'µ'
+     182: 243,  # '¶'
+     183: 244,  # '·'
+     184: 245,  # 'ё'
+     185: 62,  # '№'
+     186: 58,  # 'є'
+     187: 246,  # '»'
+     188: 247,  # 'ј'
+     189: 248,  # 'Ѕ'
+     190: 249,  # 'ѕ'
+     191: 250,  # 'ї'
+     192: 31,  # 'А'
+     193: 32,  # 'Б'
+     194: 35,  # 'В'
+     195: 43,  # 'Г'
+     196: 37,  # 'Д'
+     197: 44,  # 'Е'
+     198: 55,  # 'Ж'
+     199: 47,  # 'З'
+     200: 40,  # 'И'
+     201: 59,  # 'Й'
+     202: 33,  # 'К'
+     203: 46,  # 'Л'
+     204: 38,  # 'М'
+     205: 36,  # 'Н'
+     206: 41,  # 'О'
+     207: 30,  # 'П'
+     208: 39,  # 'Р'
+     209: 28,  # 'С'
+     210: 34,  # 'Т'
+     211: 51,  # 'У'
+     212: 48,  # 'Ф'
+     213: 49,  # 'Х'
+     214: 53,  # 'Ц'
+     215: 50,  # 'Ч'
+     216: 54,  # 'Ш'
+     217: 57,  # 'Щ'
+     218: 61,  # 'Ъ'
+     219: 251,  # 'Ы'
+     220: 67,  # 'Ь'
+     221: 252,  # 'Э'
+     222: 60,  # 'Ю'
+     223: 56,  # 'Я'
+     224: 1,  # 'а'
+     225: 18,  # 'б'
+     226: 9,  # 'в'
+     227: 20,  # 'г'
+     228: 11,  # 'д'
+     229: 3,  # 'е'
+     230: 23,  # 'ж'
+     231: 15,  # 'з'
+     232: 2,  # 'и'
+     233: 26,  # 'й'
+     234: 12,  # 'к'
+     235: 10,  # 'л'
+     236: 14,  # 'м'
+     237: 6,  # 'н'
+     238: 4,  # 'о'
+     239: 13,  # 'п'
+     240: 7,  # 'р'
+     241: 8,  # 'с'
+     242: 5,  # 'т'
+     243: 19,  # 'у'
+     244: 29,  # 'ф'
+     245: 25,  # 'х'
+     246: 22,  # 'ц'
+     247: 21,  # 'ч'
+     248: 27,  # 'ш'
+     249: 24,  # 'щ'
+     250: 17,  # 'ъ'
+     251: 75,  # 'ы'
+     252: 52,  # 'ь'
+     253: 253,  # 'э'
+     254: 42,  # 'ю'
+     255: 16,  # 'я'
+}
+
+WINDOWS_1251_BULGARIAN_MODEL = SingleByteCharSetModel(charset_name='windows-1251',
+                                                      language='Bulgarian',
+                                                      char_to_order_map=WINDOWS_1251_BULGARIAN_CHAR_TO_ORDER,
+                                                      language_model=BULGARIAN_LANG_MODEL,
+                                                      typical_positive_ratio=0.969392,
+                                                      keep_ascii_letters=False,
+                                                      alphabet='АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЬЮЯабвгдежзийклмнопрстуфхцчшщъьюя')
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langgreekmodel.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langgreekmodel.py
new file mode 100644
index 0000000..d99528e
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langgreekmodel.py
@@ -0,0 +1,4398 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from pip._vendor.chardet.sbcharsetprober import SingleByteCharSetModel
+
+
+# 3: Positive
+# 2: Likely
+# 1: Unlikely
+# 0: Negative
+
+GREEK_LANG_MODEL = {
+    60: {  # 'e'
+        60: 2,  # 'e'
+        55: 1,  # 'o'
+        58: 2,  # 't'
+        36: 1,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 1,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    55: {  # 'o'
+        60: 0,  # 'e'
+        55: 2,  # 'o'
+        58: 2,  # 't'
+        36: 1,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 1,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 1,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    58: {  # 't'
+        60: 2,  # 'e'
+        55: 1,  # 'o'
+        58: 1,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 1,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    36: {  # '·'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    61: {  # 'Ά'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 1,  # 'γ'
+        21: 2,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 1,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    46: {  # 'Έ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 2,  # 'β'
+        20: 2,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 2,  # 'κ'
+        16: 2,  # 'λ'
+        10: 0,  # 'μ'
+        6: 3,  # 'ν'
+        30: 2,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 2,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 1,  # 'σ'
+        2: 2,  # 'τ'
+        12: 0,  # 'υ'
+        28: 2,  # 'φ'
+        23: 3,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    54: {  # 'Ό'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 2,  # 'μ'
+        6: 2,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 2,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 2,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 2,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    31: {  # 'Α'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 2,  # 'Β'
+        43: 2,  # 'Γ'
+        41: 1,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 2,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 2,  # 'Κ'
+        53: 2,  # 'Λ'
+        38: 2,  # 'Μ'
+        49: 2,  # 'Ν'
+        59: 1,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 2,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 2,  # 'Σ'
+        33: 2,  # 'Τ'
+        45: 2,  # 'Υ'
+        56: 2,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 2,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 1,  # 'θ'
+        5: 0,  # 'ι'
+        11: 2,  # 'κ'
+        16: 3,  # 'λ'
+        10: 2,  # 'μ'
+        6: 3,  # 'ν'
+        30: 2,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 2,  # 'ς'
+        7: 2,  # 'σ'
+        2: 0,  # 'τ'
+        12: 3,  # 'υ'
+        28: 2,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    51: {  # 'Β'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 1,  # 'Ε'
+        40: 1,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 1,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 1,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 2,  # 'έ'
+        22: 2,  # 'ή'
+        15: 0,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 2,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 0,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    43: {  # 'Γ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 1,  # 'Α'
+        51: 0,  # 'Β'
+        43: 2,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 1,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 1,  # 'Κ'
+        53: 1,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 1,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 2,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 1,  # 'Χ'
+        57: 2,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 2,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 2,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 0,  # 'μ'
+        6: 2,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 0,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    41: {  # 'Δ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 2,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 2,  # 'ή'
+        15: 2,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 2,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 0,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 1,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    34: {  # 'Ε'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 2,  # 'Γ'
+        41: 2,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 2,  # 'Κ'
+        53: 2,  # 'Λ'
+        38: 2,  # 'Μ'
+        49: 2,  # 'Ν'
+        59: 1,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 2,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 2,  # 'Σ'
+        33: 2,  # 'Τ'
+        45: 2,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 2,  # 'Χ'
+        57: 2,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 3,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 3,  # 'γ'
+        21: 2,  # 'δ'
+        3: 1,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 1,  # 'θ'
+        5: 2,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 2,  # 'μ'
+        6: 3,  # 'ν'
+        30: 2,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 3,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 2,  # 'σ'
+        2: 2,  # 'τ'
+        12: 2,  # 'υ'
+        28: 2,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 1,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    40: {  # 'Η'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 1,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 2,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 2,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 2,  # 'Μ'
+        49: 2,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 2,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 2,  # 'Σ'
+        33: 2,  # 'Τ'
+        45: 1,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 0,  # 'μ'
+        6: 1,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 1,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    52: {  # 'Θ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 1,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 1,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 2,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 2,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    47: {  # 'Ι'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 1,  # 'Β'
+        43: 1,  # 'Γ'
+        41: 2,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 2,  # 'Κ'
+        53: 2,  # 'Λ'
+        38: 2,  # 'Μ'
+        49: 2,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 2,  # 'Σ'
+        33: 2,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 2,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 2,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 2,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 1,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 2,  # 'σ'
+        2: 1,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 1,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    44: {  # 'Κ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 1,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 1,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 1,  # 'Τ'
+        45: 2,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 1,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 2,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 0,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 2,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    53: {  # 'Λ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 2,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 2,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 2,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 2,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 2,  # 'έ'
+        22: 0,  # 'ή'
+        15: 2,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 2,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 1,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 2,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    38: {  # 'Μ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 2,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 2,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 2,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 2,  # 'έ'
+        22: 2,  # 'ή'
+        15: 2,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 2,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 3,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 2,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    49: {  # 'Ν'
+        60: 2,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 2,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 2,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 2,  # 'έ'
+        22: 0,  # 'ή'
+        15: 2,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 1,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 1,  # 'ω'
+        19: 2,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    59: {  # 'Ξ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 1,  # 'Ε'
+        40: 1,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 1,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 2,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 2,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    39: {  # 'Ο'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 1,  # 'Β'
+        43: 2,  # 'Γ'
+        41: 2,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 1,  # 'Η'
+        52: 2,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 2,  # 'Κ'
+        53: 2,  # 'Λ'
+        38: 2,  # 'Μ'
+        49: 2,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 2,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 2,  # 'Σ'
+        33: 2,  # 'Τ'
+        45: 2,  # 'Υ'
+        56: 2,  # 'Φ'
+        50: 2,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 2,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 2,  # 'κ'
+        16: 2,  # 'λ'
+        10: 2,  # 'μ'
+        6: 2,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 2,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 2,  # 'τ'
+        12: 2,  # 'υ'
+        28: 1,  # 'φ'
+        23: 1,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    35: {  # 'Π'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 2,  # 'Λ'
+        38: 1,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 1,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 1,  # 'Χ'
+        57: 2,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 1,  # 'έ'
+        22: 1,  # 'ή'
+        15: 2,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 2,  # 'η'
+        25: 0,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 0,  # 'μ'
+        6: 2,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 2,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 2,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    48: {  # 'Ρ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 1,  # 'Γ'
+        41: 1,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 2,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 1,  # 'Τ'
+        45: 1,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 1,  # 'Χ'
+        57: 1,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 2,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 1,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 3,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 0,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    37: {  # 'Σ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 1,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 2,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 2,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 2,  # 'Σ'
+        33: 2,  # 'Τ'
+        45: 2,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 2,  # 'Χ'
+        57: 2,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 2,  # 'ή'
+        15: 2,  # 'ί'
+        1: 2,  # 'α'
+        29: 2,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 2,  # 'ι'
+        11: 2,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 2,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 0,  # 'φ'
+        23: 2,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 0,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    33: {  # 'Τ'
+        60: 0,  # 'e'
+        55: 1,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 2,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 2,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 1,  # 'Τ'
+        45: 1,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 2,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 2,  # 'έ'
+        22: 0,  # 'ή'
+        15: 2,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 2,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 2,  # 'η'
+        25: 0,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 2,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 2,  # 'σ'
+        2: 0,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 2,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    45: {  # 'Υ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 2,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 1,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 2,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 1,  # 'Λ'
+        38: 2,  # 'Μ'
+        49: 2,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 2,  # 'Π'
+        48: 1,  # 'Ρ'
+        37: 2,  # 'Σ'
+        33: 2,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 1,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 3,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    56: {  # 'Φ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 1,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 1,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 2,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 2,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 2,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 1,  # 'ύ'
+        27: 1,  # 'ώ'
+    },
+    50: {  # 'Χ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 1,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 2,  # 'Ε'
+        40: 2,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 2,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 1,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 1,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 1,  # 'Χ'
+        57: 1,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 2,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 2,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    57: {  # 'Ω'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 1,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 1,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 2,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 2,  # 'Ρ'
+        37: 2,  # 'Σ'
+        33: 2,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 0,  # 'π'
+        8: 2,  # 'ρ'
+        14: 2,  # 'ς'
+        7: 2,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 1,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    17: {  # 'ά'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 2,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 3,  # 'β'
+        20: 3,  # 'γ'
+        21: 3,  # 'δ'
+        3: 3,  # 'ε'
+        32: 3,  # 'ζ'
+        13: 0,  # 'η'
+        25: 3,  # 'θ'
+        5: 2,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 3,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 3,  # 'φ'
+        23: 3,  # 'χ'
+        42: 3,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    18: {  # 'έ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 3,  # 'α'
+        29: 2,  # 'β'
+        20: 3,  # 'γ'
+        21: 2,  # 'δ'
+        3: 3,  # 'ε'
+        32: 2,  # 'ζ'
+        13: 0,  # 'η'
+        25: 3,  # 'θ'
+        5: 0,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 3,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 3,  # 'φ'
+        23: 3,  # 'χ'
+        42: 3,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    22: {  # 'ή'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 1,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 3,  # 'γ'
+        21: 3,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 3,  # 'θ'
+        5: 0,  # 'ι'
+        11: 3,  # 'κ'
+        16: 2,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 2,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 2,  # 'φ'
+        23: 3,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    15: {  # 'ί'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 3,  # 'α'
+        29: 2,  # 'β'
+        20: 3,  # 'γ'
+        21: 3,  # 'δ'
+        3: 3,  # 'ε'
+        32: 3,  # 'ζ'
+        13: 3,  # 'η'
+        25: 3,  # 'θ'
+        5: 0,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 3,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 1,  # 'φ'
+        23: 3,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    1: {  # 'α'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 2,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 2,  # 'έ'
+        22: 0,  # 'ή'
+        15: 3,  # 'ί'
+        1: 0,  # 'α'
+        29: 3,  # 'β'
+        20: 3,  # 'γ'
+        21: 3,  # 'δ'
+        3: 2,  # 'ε'
+        32: 3,  # 'ζ'
+        13: 1,  # 'η'
+        25: 3,  # 'θ'
+        5: 3,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 3,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 3,  # 'φ'
+        23: 3,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 2,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    29: {  # 'β'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 2,  # 'έ'
+        22: 3,  # 'ή'
+        15: 2,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 2,  # 'γ'
+        21: 2,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 2,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 3,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 2,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    20: {  # 'γ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 3,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 3,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 3,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    21: {  # 'δ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 3,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    3: {  # 'ε'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 2,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 3,  # 'ί'
+        1: 2,  # 'α'
+        29: 3,  # 'β'
+        20: 3,  # 'γ'
+        21: 3,  # 'δ'
+        3: 2,  # 'ε'
+        32: 2,  # 'ζ'
+        13: 0,  # 'η'
+        25: 3,  # 'θ'
+        5: 3,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 3,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 3,  # 'φ'
+        23: 3,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 2,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    32: {  # 'ζ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 2,  # 'έ'
+        22: 2,  # 'ή'
+        15: 2,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 1,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 2,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    13: {  # 'η'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 2,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 3,  # 'γ'
+        21: 2,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 3,  # 'θ'
+        5: 0,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 2,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 2,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 2,  # 'φ'
+        23: 3,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    25: {  # 'θ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 2,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 1,  # 'λ'
+        10: 3,  # 'μ'
+        6: 2,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 3,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    5: {  # 'ι'
+        60: 0,  # 'e'
+        55: 1,  # 'o'
+        58: 0,  # 't'
+        36: 2,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 1,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 0,  # 'ί'
+        1: 3,  # 'α'
+        29: 3,  # 'β'
+        20: 3,  # 'γ'
+        21: 3,  # 'δ'
+        3: 3,  # 'ε'
+        32: 2,  # 'ζ'
+        13: 3,  # 'η'
+        25: 3,  # 'θ'
+        5: 0,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 3,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 2,  # 'φ'
+        23: 3,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    11: {  # 'κ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 3,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 2,  # 'θ'
+        5: 3,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 2,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 2,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 2,  # 'φ'
+        23: 2,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    16: {  # 'λ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 1,  # 'β'
+        20: 2,  # 'γ'
+        21: 1,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 2,  # 'θ'
+        5: 3,  # 'ι'
+        11: 2,  # 'κ'
+        16: 3,  # 'λ'
+        10: 2,  # 'μ'
+        6: 2,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 3,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 2,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    10: {  # 'μ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 1,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 3,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 3,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 2,  # 'υ'
+        28: 3,  # 'φ'
+        23: 0,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    6: {  # 'ν'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 2,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 3,  # 'δ'
+        3: 3,  # 'ε'
+        32: 2,  # 'ζ'
+        13: 3,  # 'η'
+        25: 3,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 1,  # 'λ'
+        10: 0,  # 'μ'
+        6: 2,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    30: {  # 'ξ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 2,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 3,  # 'τ'
+        12: 2,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 2,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 1,  # 'ώ'
+    },
+    4: {  # 'ο'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 2,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 2,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 2,  # 'α'
+        29: 3,  # 'β'
+        20: 3,  # 'γ'
+        21: 3,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 3,  # 'θ'
+        5: 3,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 2,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 3,  # 'φ'
+        23: 3,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 1,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    9: {  # 'π'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 3,  # 'λ'
+        10: 0,  # 'μ'
+        6: 2,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 2,  # 'ς'
+        7: 0,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 0,  # 'φ'
+        23: 2,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    8: {  # 'ρ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 2,  # 'β'
+        20: 3,  # 'γ'
+        21: 2,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 3,  # 'θ'
+        5: 3,  # 'ι'
+        11: 3,  # 'κ'
+        16: 1,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 2,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 2,  # 'π'
+        8: 2,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 2,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 3,  # 'φ'
+        23: 3,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    14: {  # 'ς'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 2,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 0,  # 'θ'
+        5: 0,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 0,  # 'τ'
+        12: 0,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    7: {  # 'σ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 2,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 3,  # 'β'
+        20: 0,  # 'γ'
+        21: 2,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 3,  # 'θ'
+        5: 3,  # 'ι'
+        11: 3,  # 'κ'
+        16: 2,  # 'λ'
+        10: 3,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 3,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 3,  # 'φ'
+        23: 3,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    2: {  # 'τ'
+        60: 0,  # 'e'
+        55: 2,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 2,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 3,  # 'ι'
+        11: 2,  # 'κ'
+        16: 2,  # 'λ'
+        10: 3,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 2,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    12: {  # 'υ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 2,  # 'έ'
+        22: 3,  # 'ή'
+        15: 2,  # 'ί'
+        1: 3,  # 'α'
+        29: 2,  # 'β'
+        20: 3,  # 'γ'
+        21: 2,  # 'δ'
+        3: 2,  # 'ε'
+        32: 2,  # 'ζ'
+        13: 2,  # 'η'
+        25: 3,  # 'θ'
+        5: 2,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 3,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 2,  # 'φ'
+        23: 3,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 2,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    28: {  # 'φ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 3,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 2,  # 'η'
+        25: 2,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 0,  # 'μ'
+        6: 1,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 1,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 2,  # 'ύ'
+        27: 2,  # 'ώ'
+    },
+    23: {  # 'χ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 3,  # 'ά'
+        18: 2,  # 'έ'
+        22: 3,  # 'ή'
+        15: 3,  # 'ί'
+        1: 3,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 2,  # 'η'
+        25: 2,  # 'θ'
+        5: 3,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 2,  # 'μ'
+        6: 3,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 0,  # 'π'
+        8: 3,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 3,  # 'τ'
+        12: 3,  # 'υ'
+        28: 0,  # 'φ'
+        23: 2,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 3,  # 'ω'
+        19: 3,  # 'ό'
+        26: 3,  # 'ύ'
+        27: 3,  # 'ώ'
+    },
+    42: {  # 'ψ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 2,  # 'ά'
+        18: 2,  # 'έ'
+        22: 1,  # 'ή'
+        15: 2,  # 'ί'
+        1: 2,  # 'α'
+        29: 0,  # 'β'
+        20: 0,  # 'γ'
+        21: 0,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 3,  # 'η'
+        25: 0,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 0,  # 'λ'
+        10: 0,  # 'μ'
+        6: 0,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 0,  # 'π'
+        8: 0,  # 'ρ'
+        14: 0,  # 'ς'
+        7: 0,  # 'σ'
+        2: 2,  # 'τ'
+        12: 1,  # 'υ'
+        28: 0,  # 'φ'
+        23: 0,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    24: {  # 'ω'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 1,  # 'ά'
+        18: 0,  # 'έ'
+        22: 2,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 2,  # 'β'
+        20: 3,  # 'γ'
+        21: 2,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 0,  # 'η'
+        25: 3,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 0,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 2,  # 'φ'
+        23: 2,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    19: {  # 'ό'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 3,  # 'β'
+        20: 3,  # 'γ'
+        21: 3,  # 'δ'
+        3: 1,  # 'ε'
+        32: 2,  # 'ζ'
+        13: 2,  # 'η'
+        25: 2,  # 'θ'
+        5: 2,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 1,  # 'ξ'
+        4: 2,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 2,  # 'φ'
+        23: 3,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    26: {  # 'ύ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 2,  # 'α'
+        29: 2,  # 'β'
+        20: 2,  # 'γ'
+        21: 1,  # 'δ'
+        3: 3,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 2,  # 'η'
+        25: 3,  # 'θ'
+        5: 0,  # 'ι'
+        11: 3,  # 'κ'
+        16: 3,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 2,  # 'ξ'
+        4: 3,  # 'ο'
+        9: 3,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 2,  # 'φ'
+        23: 2,  # 'χ'
+        42: 2,  # 'ψ'
+        24: 2,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+    27: {  # 'ώ'
+        60: 0,  # 'e'
+        55: 0,  # 'o'
+        58: 0,  # 't'
+        36: 0,  # '·'
+        61: 0,  # 'Ά'
+        46: 0,  # 'Έ'
+        54: 0,  # 'Ό'
+        31: 0,  # 'Α'
+        51: 0,  # 'Β'
+        43: 0,  # 'Γ'
+        41: 0,  # 'Δ'
+        34: 0,  # 'Ε'
+        40: 0,  # 'Η'
+        52: 0,  # 'Θ'
+        47: 0,  # 'Ι'
+        44: 0,  # 'Κ'
+        53: 0,  # 'Λ'
+        38: 0,  # 'Μ'
+        49: 0,  # 'Ν'
+        59: 0,  # 'Ξ'
+        39: 0,  # 'Ο'
+        35: 0,  # 'Π'
+        48: 0,  # 'Ρ'
+        37: 0,  # 'Σ'
+        33: 0,  # 'Τ'
+        45: 0,  # 'Υ'
+        56: 0,  # 'Φ'
+        50: 0,  # 'Χ'
+        57: 0,  # 'Ω'
+        17: 0,  # 'ά'
+        18: 0,  # 'έ'
+        22: 0,  # 'ή'
+        15: 0,  # 'ί'
+        1: 0,  # 'α'
+        29: 1,  # 'β'
+        20: 0,  # 'γ'
+        21: 3,  # 'δ'
+        3: 0,  # 'ε'
+        32: 0,  # 'ζ'
+        13: 1,  # 'η'
+        25: 2,  # 'θ'
+        5: 2,  # 'ι'
+        11: 0,  # 'κ'
+        16: 2,  # 'λ'
+        10: 3,  # 'μ'
+        6: 3,  # 'ν'
+        30: 1,  # 'ξ'
+        4: 0,  # 'ο'
+        9: 2,  # 'π'
+        8: 3,  # 'ρ'
+        14: 3,  # 'ς'
+        7: 3,  # 'σ'
+        2: 3,  # 'τ'
+        12: 0,  # 'υ'
+        28: 1,  # 'φ'
+        23: 1,  # 'χ'
+        42: 0,  # 'ψ'
+        24: 0,  # 'ω'
+        19: 0,  # 'ό'
+        26: 0,  # 'ύ'
+        27: 0,  # 'ώ'
+    },
+}
+
+# 255: Undefined characters that did not exist in training text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+# 251: Control characters
+
+# Character Mapping Table(s):
+WINDOWS_1253_GREEK_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 82,  # 'A'
+     66: 100,  # 'B'
+     67: 104,  # 'C'
+     68: 94,  # 'D'
+     69: 98,  # 'E'
+     70: 101,  # 'F'
+     71: 116,  # 'G'
+     72: 102,  # 'H'
+     73: 111,  # 'I'
+     74: 187,  # 'J'
+     75: 117,  # 'K'
+     76: 92,  # 'L'
+     77: 88,  # 'M'
+     78: 113,  # 'N'
+     79: 85,  # 'O'
+     80: 79,  # 'P'
+     81: 118,  # 'Q'
+     82: 105,  # 'R'
+     83: 83,  # 'S'
+     84: 67,  # 'T'
+     85: 114,  # 'U'
+     86: 119,  # 'V'
+     87: 95,  # 'W'
+     88: 99,  # 'X'
+     89: 109,  # 'Y'
+     90: 188,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 72,  # 'a'
+     98: 70,  # 'b'
+     99: 80,  # 'c'
+     100: 81,  # 'd'
+     101: 60,  # 'e'
+     102: 96,  # 'f'
+     103: 93,  # 'g'
+     104: 89,  # 'h'
+     105: 68,  # 'i'
+     106: 120,  # 'j'
+     107: 97,  # 'k'
+     108: 77,  # 'l'
+     109: 86,  # 'm'
+     110: 69,  # 'n'
+     111: 55,  # 'o'
+     112: 78,  # 'p'
+     113: 115,  # 'q'
+     114: 65,  # 'r'
+     115: 66,  # 's'
+     116: 58,  # 't'
+     117: 76,  # 'u'
+     118: 106,  # 'v'
+     119: 103,  # 'w'
+     120: 87,  # 'x'
+     121: 107,  # 'y'
+     122: 112,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 255,  # '€'
+     129: 255,  # None
+     130: 255,  # '‚'
+     131: 255,  # 'ƒ'
+     132: 255,  # '„'
+     133: 255,  # '…'
+     134: 255,  # '†'
+     135: 255,  # '‡'
+     136: 255,  # None
+     137: 255,  # '‰'
+     138: 255,  # None
+     139: 255,  # '‹'
+     140: 255,  # None
+     141: 255,  # None
+     142: 255,  # None
+     143: 255,  # None
+     144: 255,  # None
+     145: 255,  # '‘'
+     146: 255,  # '’'
+     147: 255,  # '“'
+     148: 255,  # '”'
+     149: 255,  # '•'
+     150: 255,  # '–'
+     151: 255,  # '—'
+     152: 255,  # None
+     153: 255,  # '™'
+     154: 255,  # None
+     155: 255,  # '›'
+     156: 255,  # None
+     157: 255,  # None
+     158: 255,  # None
+     159: 255,  # None
+     160: 253,  # '\xa0'
+     161: 233,  # '΅'
+     162: 61,  # 'Ά'
+     163: 253,  # '£'
+     164: 253,  # '¤'
+     165: 253,  # '¥'
+     166: 253,  # '¦'
+     167: 253,  # '§'
+     168: 253,  # '¨'
+     169: 253,  # '©'
+     170: 253,  # None
+     171: 253,  # '«'
+     172: 253,  # '¬'
+     173: 74,  # '\xad'
+     174: 253,  # '®'
+     175: 253,  # '―'
+     176: 253,  # '°'
+     177: 253,  # '±'
+     178: 253,  # '²'
+     179: 253,  # '³'
+     180: 247,  # '΄'
+     181: 253,  # 'µ'
+     182: 253,  # '¶'
+     183: 36,  # '·'
+     184: 46,  # 'Έ'
+     185: 71,  # 'Ή'
+     186: 73,  # 'Ί'
+     187: 253,  # '»'
+     188: 54,  # 'Ό'
+     189: 253,  # '½'
+     190: 108,  # 'Ύ'
+     191: 123,  # 'Ώ'
+     192: 110,  # 'ΐ'
+     193: 31,  # 'Α'
+     194: 51,  # 'Β'
+     195: 43,  # 'Γ'
+     196: 41,  # 'Δ'
+     197: 34,  # 'Ε'
+     198: 91,  # 'Ζ'
+     199: 40,  # 'Η'
+     200: 52,  # 'Θ'
+     201: 47,  # 'Ι'
+     202: 44,  # 'Κ'
+     203: 53,  # 'Λ'
+     204: 38,  # 'Μ'
+     205: 49,  # 'Ν'
+     206: 59,  # 'Ξ'
+     207: 39,  # 'Ο'
+     208: 35,  # 'Π'
+     209: 48,  # 'Ρ'
+     210: 250,  # None
+     211: 37,  # 'Σ'
+     212: 33,  # 'Τ'
+     213: 45,  # 'Υ'
+     214: 56,  # 'Φ'
+     215: 50,  # 'Χ'
+     216: 84,  # 'Ψ'
+     217: 57,  # 'Ω'
+     218: 120,  # 'Ϊ'
+     219: 121,  # 'Ϋ'
+     220: 17,  # 'ά'
+     221: 18,  # 'έ'
+     222: 22,  # 'ή'
+     223: 15,  # 'ί'
+     224: 124,  # 'ΰ'
+     225: 1,  # 'α'
+     226: 29,  # 'β'
+     227: 20,  # 'γ'
+     228: 21,  # 'δ'
+     229: 3,  # 'ε'
+     230: 32,  # 'ζ'
+     231: 13,  # 'η'
+     232: 25,  # 'θ'
+     233: 5,  # 'ι'
+     234: 11,  # 'κ'
+     235: 16,  # 'λ'
+     236: 10,  # 'μ'
+     237: 6,  # 'ν'
+     238: 30,  # 'ξ'
+     239: 4,  # 'ο'
+     240: 9,  # 'π'
+     241: 8,  # 'ρ'
+     242: 14,  # 'ς'
+     243: 7,  # 'σ'
+     244: 2,  # 'τ'
+     245: 12,  # 'υ'
+     246: 28,  # 'φ'
+     247: 23,  # 'χ'
+     248: 42,  # 'ψ'
+     249: 24,  # 'ω'
+     250: 64,  # 'ϊ'
+     251: 75,  # 'ϋ'
+     252: 19,  # 'ό'
+     253: 26,  # 'ύ'
+     254: 27,  # 'ώ'
+     255: 253,  # None
+}
+
+WINDOWS_1253_GREEK_MODEL = SingleByteCharSetModel(charset_name='windows-1253',
+                                                  language='Greek',
+                                                  char_to_order_map=WINDOWS_1253_GREEK_CHAR_TO_ORDER,
+                                                  language_model=GREEK_LANG_MODEL,
+                                                  typical_positive_ratio=0.982851,
+                                                  keep_ascii_letters=False,
+                                                  alphabet='ΆΈΉΊΌΎΏΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩάέήίαβγδεζηθικλμνξοπρςστυφχψωόύώ')
+
+ISO_8859_7_GREEK_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 82,  # 'A'
+     66: 100,  # 'B'
+     67: 104,  # 'C'
+     68: 94,  # 'D'
+     69: 98,  # 'E'
+     70: 101,  # 'F'
+     71: 116,  # 'G'
+     72: 102,  # 'H'
+     73: 111,  # 'I'
+     74: 187,  # 'J'
+     75: 117,  # 'K'
+     76: 92,  # 'L'
+     77: 88,  # 'M'
+     78: 113,  # 'N'
+     79: 85,  # 'O'
+     80: 79,  # 'P'
+     81: 118,  # 'Q'
+     82: 105,  # 'R'
+     83: 83,  # 'S'
+     84: 67,  # 'T'
+     85: 114,  # 'U'
+     86: 119,  # 'V'
+     87: 95,  # 'W'
+     88: 99,  # 'X'
+     89: 109,  # 'Y'
+     90: 188,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 72,  # 'a'
+     98: 70,  # 'b'
+     99: 80,  # 'c'
+     100: 81,  # 'd'
+     101: 60,  # 'e'
+     102: 96,  # 'f'
+     103: 93,  # 'g'
+     104: 89,  # 'h'
+     105: 68,  # 'i'
+     106: 120,  # 'j'
+     107: 97,  # 'k'
+     108: 77,  # 'l'
+     109: 86,  # 'm'
+     110: 69,  # 'n'
+     111: 55,  # 'o'
+     112: 78,  # 'p'
+     113: 115,  # 'q'
+     114: 65,  # 'r'
+     115: 66,  # 's'
+     116: 58,  # 't'
+     117: 76,  # 'u'
+     118: 106,  # 'v'
+     119: 103,  # 'w'
+     120: 87,  # 'x'
+     121: 107,  # 'y'
+     122: 112,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 255,  # '\x80'
+     129: 255,  # '\x81'
+     130: 255,  # '\x82'
+     131: 255,  # '\x83'
+     132: 255,  # '\x84'
+     133: 255,  # '\x85'
+     134: 255,  # '\x86'
+     135: 255,  # '\x87'
+     136: 255,  # '\x88'
+     137: 255,  # '\x89'
+     138: 255,  # '\x8a'
+     139: 255,  # '\x8b'
+     140: 255,  # '\x8c'
+     141: 255,  # '\x8d'
+     142: 255,  # '\x8e'
+     143: 255,  # '\x8f'
+     144: 255,  # '\x90'
+     145: 255,  # '\x91'
+     146: 255,  # '\x92'
+     147: 255,  # '\x93'
+     148: 255,  # '\x94'
+     149: 255,  # '\x95'
+     150: 255,  # '\x96'
+     151: 255,  # '\x97'
+     152: 255,  # '\x98'
+     153: 255,  # '\x99'
+     154: 255,  # '\x9a'
+     155: 255,  # '\x9b'
+     156: 255,  # '\x9c'
+     157: 255,  # '\x9d'
+     158: 255,  # '\x9e'
+     159: 255,  # '\x9f'
+     160: 253,  # '\xa0'
+     161: 233,  # '‘'
+     162: 90,  # '’'
+     163: 253,  # '£'
+     164: 253,  # '€'
+     165: 253,  # '₯'
+     166: 253,  # '¦'
+     167: 253,  # '§'
+     168: 253,  # '¨'
+     169: 253,  # '©'
+     170: 253,  # 'ͺ'
+     171: 253,  # '«'
+     172: 253,  # '¬'
+     173: 74,  # '\xad'
+     174: 253,  # None
+     175: 253,  # '―'
+     176: 253,  # '°'
+     177: 253,  # '±'
+     178: 253,  # '²'
+     179: 253,  # '³'
+     180: 247,  # '΄'
+     181: 248,  # '΅'
+     182: 61,  # 'Ά'
+     183: 36,  # '·'
+     184: 46,  # 'Έ'
+     185: 71,  # 'Ή'
+     186: 73,  # 'Ί'
+     187: 253,  # '»'
+     188: 54,  # 'Ό'
+     189: 253,  # '½'
+     190: 108,  # 'Ύ'
+     191: 123,  # 'Ώ'
+     192: 110,  # 'ΐ'
+     193: 31,  # 'Α'
+     194: 51,  # 'Β'
+     195: 43,  # 'Γ'
+     196: 41,  # 'Δ'
+     197: 34,  # 'Ε'
+     198: 91,  # 'Ζ'
+     199: 40,  # 'Η'
+     200: 52,  # 'Θ'
+     201: 47,  # 'Ι'
+     202: 44,  # 'Κ'
+     203: 53,  # 'Λ'
+     204: 38,  # 'Μ'
+     205: 49,  # 'Ν'
+     206: 59,  # 'Ξ'
+     207: 39,  # 'Ο'
+     208: 35,  # 'Π'
+     209: 48,  # 'Ρ'
+     210: 250,  # None
+     211: 37,  # 'Σ'
+     212: 33,  # 'Τ'
+     213: 45,  # 'Υ'
+     214: 56,  # 'Φ'
+     215: 50,  # 'Χ'
+     216: 84,  # 'Ψ'
+     217: 57,  # 'Ω'
+     218: 120,  # 'Ϊ'
+     219: 121,  # 'Ϋ'
+     220: 17,  # 'ά'
+     221: 18,  # 'έ'
+     222: 22,  # 'ή'
+     223: 15,  # 'ί'
+     224: 124,  # 'ΰ'
+     225: 1,  # 'α'
+     226: 29,  # 'β'
+     227: 20,  # 'γ'
+     228: 21,  # 'δ'
+     229: 3,  # 'ε'
+     230: 32,  # 'ζ'
+     231: 13,  # 'η'
+     232: 25,  # 'θ'
+     233: 5,  # 'ι'
+     234: 11,  # 'κ'
+     235: 16,  # 'λ'
+     236: 10,  # 'μ'
+     237: 6,  # 'ν'
+     238: 30,  # 'ξ'
+     239: 4,  # 'ο'
+     240: 9,  # 'π'
+     241: 8,  # 'ρ'
+     242: 14,  # 'ς'
+     243: 7,  # 'σ'
+     244: 2,  # 'τ'
+     245: 12,  # 'υ'
+     246: 28,  # 'φ'
+     247: 23,  # 'χ'
+     248: 42,  # 'ψ'
+     249: 24,  # 'ω'
+     250: 64,  # 'ϊ'
+     251: 75,  # 'ϋ'
+     252: 19,  # 'ό'
+     253: 26,  # 'ύ'
+     254: 27,  # 'ώ'
+     255: 253,  # None
+}
+
+ISO_8859_7_GREEK_MODEL = SingleByteCharSetModel(charset_name='ISO-8859-7',
+                                                language='Greek',
+                                                char_to_order_map=ISO_8859_7_GREEK_CHAR_TO_ORDER,
+                                                language_model=GREEK_LANG_MODEL,
+                                                typical_positive_ratio=0.982851,
+                                                keep_ascii_letters=False,
+                                                alphabet='ΆΈΉΊΌΎΏΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩάέήίαβγδεζηθικλμνξοπρςστυφχψωόύώ')
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langhebrewmodel.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langhebrewmodel.py
new file mode 100644
index 0000000..484c652
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langhebrewmodel.py
@@ -0,0 +1,4383 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from pip._vendor.chardet.sbcharsetprober import SingleByteCharSetModel
+
+
+# 3: Positive
+# 2: Likely
+# 1: Unlikely
+# 0: Negative
+
+HEBREW_LANG_MODEL = {
+    50: {  # 'a'
+        50: 0,  # 'a'
+        60: 1,  # 'c'
+        61: 1,  # 'd'
+        42: 1,  # 'e'
+        53: 1,  # 'i'
+        56: 2,  # 'l'
+        54: 2,  # 'n'
+        49: 0,  # 'o'
+        51: 2,  # 'r'
+        43: 1,  # 's'
+        44: 2,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 1,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 1,  # 'ק'
+        7: 0,  # 'ר'
+        10: 1,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 1,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    60: {  # 'c'
+        50: 1,  # 'a'
+        60: 1,  # 'c'
+        61: 0,  # 'd'
+        42: 1,  # 'e'
+        53: 1,  # 'i'
+        56: 1,  # 'l'
+        54: 0,  # 'n'
+        49: 1,  # 'o'
+        51: 1,  # 'r'
+        43: 1,  # 's'
+        44: 2,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 1,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 1,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 1,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 0,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    61: {  # 'd'
+        50: 1,  # 'a'
+        60: 0,  # 'c'
+        61: 1,  # 'd'
+        42: 1,  # 'e'
+        53: 1,  # 'i'
+        56: 1,  # 'l'
+        54: 1,  # 'n'
+        49: 2,  # 'o'
+        51: 1,  # 'r'
+        43: 1,  # 's'
+        44: 0,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 1,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 0,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 0,  # 'ש'
+        5: 0,  # 'ת'
+        32: 1,  # '–'
+        52: 1,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    42: {  # 'e'
+        50: 1,  # 'a'
+        60: 1,  # 'c'
+        61: 2,  # 'd'
+        42: 1,  # 'e'
+        53: 1,  # 'i'
+        56: 2,  # 'l'
+        54: 2,  # 'n'
+        49: 1,  # 'o'
+        51: 2,  # 'r'
+        43: 2,  # 's'
+        44: 2,  # 't'
+        63: 1,  # 'u'
+        34: 1,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 0,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 0,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 1,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 0,  # 'ש'
+        5: 0,  # 'ת'
+        32: 1,  # '–'
+        52: 2,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    53: {  # 'i'
+        50: 1,  # 'a'
+        60: 2,  # 'c'
+        61: 1,  # 'd'
+        42: 1,  # 'e'
+        53: 0,  # 'i'
+        56: 1,  # 'l'
+        54: 2,  # 'n'
+        49: 2,  # 'o'
+        51: 1,  # 'r'
+        43: 2,  # 's'
+        44: 2,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
+        55: 1,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 0,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 0,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 0,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 1,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    56: {  # 'l'
+        50: 1,  # 'a'
+        60: 1,  # 'c'
+        61: 1,  # 'd'
+        42: 2,  # 'e'
+        53: 2,  # 'i'
+        56: 2,  # 'l'
+        54: 1,  # 'n'
+        49: 1,  # 'o'
+        51: 0,  # 'r'
+        43: 1,  # 's'
+        44: 1,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 0,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 0,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 0,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 1,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    54: {  # 'n'
+        50: 1,  # 'a'
+        60: 1,  # 'c'
+        61: 1,  # 'd'
+        42: 1,  # 'e'
+        53: 1,  # 'i'
+        56: 1,  # 'l'
+        54: 1,  # 'n'
+        49: 1,  # 'o'
+        51: 0,  # 'r'
+        43: 1,  # 's'
+        44: 2,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 1,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 0,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 0,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 2,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    49: {  # 'o'
+        50: 1,  # 'a'
+        60: 1,  # 'c'
+        61: 1,  # 'd'
+        42: 1,  # 'e'
+        53: 1,  # 'i'
+        56: 1,  # 'l'
+        54: 2,  # 'n'
+        49: 1,  # 'o'
+        51: 2,  # 'r'
+        43: 1,  # 's'
+        44: 1,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 0,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 0,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 0,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 1,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    51: {  # 'r'
+        50: 2,  # 'a'
+        60: 1,  # 'c'
+        61: 1,  # 'd'
+        42: 2,  # 'e'
+        53: 1,  # 'i'
+        56: 1,  # 'l'
+        54: 1,  # 'n'
+        49: 2,  # 'o'
+        51: 1,  # 'r'
+        43: 1,  # 's'
+        44: 1,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
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+        23: 0,  # 'ן'
+        12: 2,  # 'נ'
+        19: 2,  # 'ס'
+        13: 2,  # 'ע'
+        26: 0,  # 'ף'
+        18: 2,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 2,  # 'ק'
+        7: 2,  # 'ר'
+        10: 2,  # 'ש'
+        5: 2,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    59: {  # 'ֱ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
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+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 1,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 1,  # 'ב'
+        20: 1,  # 'ג'
+        16: 0,  # 'ד'
+        3: 0,  # 'ה'
+        2: 0,  # 'ו'
+        24: 1,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 1,  # 'י'
+        25: 0,  # 'ך'
+        15: 1,  # 'כ'
+        4: 2,  # 'ל'
+        11: 0,  # 'ם'
+        6: 2,  # 'מ'
+        23: 0,  # 'ן'
+        12: 1,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 1,  # 'ר'
+        10: 1,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    41: {  # 'ֲ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 2,  # 'ב'
+        20: 1,  # 'ג'
+        16: 2,  # 'ד'
+        3: 1,  # 'ה'
+        2: 1,  # 'ו'
+        24: 1,  # 'ז'
+        14: 1,  # 'ח'
+        22: 1,  # 'ט'
+        1: 1,  # 'י'
+        25: 1,  # 'ך'
+        15: 1,  # 'כ'
+        4: 2,  # 'ל'
+        11: 0,  # 'ם'
+        6: 2,  # 'מ'
+        23: 0,  # 'ן'
+        12: 2,  # 'נ'
+        19: 1,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 1,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 1,  # 'ק'
+        7: 2,  # 'ר'
+        10: 2,  # 'ש'
+        5: 1,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    33: {  # 'ִ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
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+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 1,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 1,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 1,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 1,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 1,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 1,  # 'א'
+        8: 2,  # 'ב'
+        20: 2,  # 'ג'
+        16: 2,  # 'ד'
+        3: 1,  # 'ה'
+        2: 1,  # 'ו'
+        24: 2,  # 'ז'
+        14: 1,  # 'ח'
+        22: 1,  # 'ט'
+        1: 3,  # 'י'
+        25: 1,  # 'ך'
+        15: 2,  # 'כ'
+        4: 2,  # 'ל'
+        11: 2,  # 'ם'
+        6: 2,  # 'מ'
+        23: 2,  # 'ן'
+        12: 2,  # 'נ'
+        19: 2,  # 'ס'
+        13: 1,  # 'ע'
+        26: 0,  # 'ף'
+        18: 2,  # 'פ'
+        27: 1,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 2,  # 'ק'
+        7: 2,  # 'ר'
+        10: 2,  # 'ש'
+        5: 2,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    37: {  # 'ֵ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
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+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 1,  # 'ֶ'
+        31: 1,  # 'ַ'
+        29: 1,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 2,  # 'א'
+        8: 2,  # 'ב'
+        20: 1,  # 'ג'
+        16: 2,  # 'ד'
+        3: 2,  # 'ה'
+        2: 1,  # 'ו'
+        24: 1,  # 'ז'
+        14: 2,  # 'ח'
+        22: 1,  # 'ט'
+        1: 3,  # 'י'
+        25: 2,  # 'ך'
+        15: 1,  # 'כ'
+        4: 2,  # 'ל'
+        11: 2,  # 'ם'
+        6: 1,  # 'מ'
+        23: 2,  # 'ן'
+        12: 2,  # 'נ'
+        19: 1,  # 'ס'
+        13: 2,  # 'ע'
+        26: 1,  # 'ף'
+        18: 1,  # 'פ'
+        27: 1,  # 'ץ'
+        21: 1,  # 'צ'
+        17: 1,  # 'ק'
+        7: 2,  # 'ר'
+        10: 2,  # 'ש'
+        5: 2,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    36: {  # 'ֶ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
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+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 1,  # 'ֶ'
+        31: 1,  # 'ַ'
+        29: 1,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 2,  # 'א'
+        8: 2,  # 'ב'
+        20: 1,  # 'ג'
+        16: 2,  # 'ד'
+        3: 2,  # 'ה'
+        2: 1,  # 'ו'
+        24: 1,  # 'ז'
+        14: 2,  # 'ח'
+        22: 1,  # 'ט'
+        1: 2,  # 'י'
+        25: 2,  # 'ך'
+        15: 1,  # 'כ'
+        4: 2,  # 'ל'
+        11: 2,  # 'ם'
+        6: 2,  # 'מ'
+        23: 2,  # 'ן'
+        12: 2,  # 'נ'
+        19: 2,  # 'ס'
+        13: 1,  # 'ע'
+        26: 1,  # 'ף'
+        18: 1,  # 'פ'
+        27: 2,  # 'ץ'
+        21: 1,  # 'צ'
+        17: 1,  # 'ק'
+        7: 2,  # 'ר'
+        10: 2,  # 'ש'
+        5: 2,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    31: {  # 'ַ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
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+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 1,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 1,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 2,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 2,  # 'א'
+        8: 2,  # 'ב'
+        20: 2,  # 'ג'
+        16: 2,  # 'ד'
+        3: 2,  # 'ה'
+        2: 1,  # 'ו'
+        24: 2,  # 'ז'
+        14: 2,  # 'ח'
+        22: 2,  # 'ט'
+        1: 3,  # 'י'
+        25: 1,  # 'ך'
+        15: 2,  # 'כ'
+        4: 2,  # 'ל'
+        11: 2,  # 'ם'
+        6: 2,  # 'מ'
+        23: 2,  # 'ן'
+        12: 2,  # 'נ'
+        19: 2,  # 'ס'
+        13: 2,  # 'ע'
+        26: 2,  # 'ף'
+        18: 2,  # 'פ'
+        27: 1,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 2,  # 'ק'
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+        10: 2,  # 'ש'
+        5: 2,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    29: {  # 'ָ'
+        50: 0,  # 'a'
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+        61: 0,  # 'd'
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+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 1,  # 'ַ'
+        29: 2,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 1,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 2,  # 'א'
+        8: 2,  # 'ב'
+        20: 2,  # 'ג'
+        16: 2,  # 'ד'
+        3: 3,  # 'ה'
+        2: 2,  # 'ו'
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+        14: 2,  # 'ח'
+        22: 1,  # 'ט'
+        1: 2,  # 'י'
+        25: 2,  # 'ך'
+        15: 2,  # 'כ'
+        4: 2,  # 'ל'
+        11: 2,  # 'ם'
+        6: 2,  # 'מ'
+        23: 2,  # 'ן'
+        12: 2,  # 'נ'
+        19: 1,  # 'ס'
+        13: 2,  # 'ע'
+        26: 1,  # 'ף'
+        18: 2,  # 'פ'
+        27: 1,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 2,  # 'ק'
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+        5: 2,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    35: {  # 'ֹ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
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+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
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+        33: 0,  # 'ִ'
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+        29: 0,  # 'ָ'
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+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
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+        9: 2,  # 'א'
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+        20: 1,  # 'ג'
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+        3: 2,  # 'ה'
+        2: 1,  # 'ו'
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+        14: 1,  # 'ח'
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+        1: 1,  # 'י'
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+        18: 2,  # 'פ'
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+        21: 2,  # 'צ'
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+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    62: {  # 'ֻ'
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+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
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+        28: 0,  # 'ּ'
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+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 1,  # 'ב'
+        20: 1,  # 'ג'
+        16: 1,  # 'ד'
+        3: 1,  # 'ה'
+        2: 1,  # 'ו'
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+        14: 1,  # 'ח'
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+        1: 1,  # 'י'
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+        4: 2,  # 'ל'
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+        18: 1,  # 'פ'
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+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    28: {  # 'ּ'
+        50: 0,  # 'a'
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+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
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+        46: 1,  # '”'
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+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
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+        39: 0,  # '½'
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+        30: 2,  # 'ְ'
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+        46: 1,  # '”'
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+        40: 1,  # '…'
+    },
+    3: {  # 'ה'
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+        55: 0,  # '´'
+        48: 1,  # '¼'
+        39: 0,  # '½'
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+        30: 1,  # 'ְ'
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+        46: 1,  # '”'
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+        40: 2,  # '…'
+    },
+    2: {  # 'ו'
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+        46: 1,  # '”'
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+        40: 2,  # '…'
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+        11: 2,  # 'ם'
+        6: 3,  # 'מ'
+        23: 2,  # 'ן'
+        12: 2,  # 'נ'
+        19: 1,  # 'ס'
+        13: 2,  # 'ע'
+        26: 1,  # 'ף'
+        18: 1,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 3,  # 'ק'
+        7: 3,  # 'ר'
+        10: 1,  # 'ש'
+        5: 2,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    14: {  # 'ח'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 1,  # '\xa0'
+        55: 1,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 2,  # 'ְ'
+        59: 1,  # 'ֱ'
+        41: 2,  # 'ֲ'
+        33: 2,  # 'ִ'
+        37: 2,  # 'ֵ'
+        36: 2,  # 'ֶ'
+        31: 2,  # 'ַ'
+        29: 2,  # 'ָ'
+        35: 2,  # 'ֹ'
+        62: 1,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 2,  # 'א'
+        8: 3,  # 'ב'
+        20: 2,  # 'ג'
+        16: 3,  # 'ד'
+        3: 3,  # 'ה'
+        2: 3,  # 'ו'
+        24: 3,  # 'ז'
+        14: 2,  # 'ח'
+        22: 2,  # 'ט'
+        1: 3,  # 'י'
+        25: 1,  # 'ך'
+        15: 2,  # 'כ'
+        4: 3,  # 'ל'
+        11: 3,  # 'ם'
+        6: 3,  # 'מ'
+        23: 2,  # 'ן'
+        12: 3,  # 'נ'
+        19: 3,  # 'ס'
+        13: 1,  # 'ע'
+        26: 2,  # 'ף'
+        18: 2,  # 'פ'
+        27: 2,  # 'ץ'
+        21: 3,  # 'צ'
+        17: 3,  # 'ק'
+        7: 3,  # 'ר'
+        10: 3,  # 'ש'
+        5: 3,  # 'ת'
+        32: 0,  # '–'
+        52: 1,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    22: {  # 'ט'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 1,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 2,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 2,  # 'ִ'
+        37: 1,  # 'ֵ'
+        36: 1,  # 'ֶ'
+        31: 2,  # 'ַ'
+        29: 1,  # 'ָ'
+        35: 1,  # 'ֹ'
+        62: 1,  # 'ֻ'
+        28: 1,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 3,  # 'א'
+        8: 3,  # 'ב'
+        20: 3,  # 'ג'
+        16: 1,  # 'ד'
+        3: 3,  # 'ה'
+        2: 3,  # 'ו'
+        24: 2,  # 'ז'
+        14: 3,  # 'ח'
+        22: 2,  # 'ט'
+        1: 3,  # 'י'
+        25: 1,  # 'ך'
+        15: 2,  # 'כ'
+        4: 3,  # 'ל'
+        11: 2,  # 'ם'
+        6: 2,  # 'מ'
+        23: 2,  # 'ן'
+        12: 3,  # 'נ'
+        19: 2,  # 'ס'
+        13: 3,  # 'ע'
+        26: 2,  # 'ף'
+        18: 3,  # 'פ'
+        27: 1,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 2,  # 'ק'
+        7: 3,  # 'ר'
+        10: 2,  # 'ש'
+        5: 3,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    1: {  # 'י'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 1,  # '\xa0'
+        55: 1,  # '´'
+        48: 1,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 2,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 2,  # 'ִ'
+        37: 2,  # 'ֵ'
+        36: 1,  # 'ֶ'
+        31: 2,  # 'ַ'
+        29: 2,  # 'ָ'
+        35: 2,  # 'ֹ'
+        62: 1,  # 'ֻ'
+        28: 2,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 3,  # 'א'
+        8: 3,  # 'ב'
+        20: 3,  # 'ג'
+        16: 3,  # 'ד'
+        3: 3,  # 'ה'
+        2: 3,  # 'ו'
+        24: 3,  # 'ז'
+        14: 3,  # 'ח'
+        22: 3,  # 'ט'
+        1: 3,  # 'י'
+        25: 3,  # 'ך'
+        15: 3,  # 'כ'
+        4: 3,  # 'ל'
+        11: 3,  # 'ם'
+        6: 3,  # 'מ'
+        23: 3,  # 'ן'
+        12: 3,  # 'נ'
+        19: 3,  # 'ס'
+        13: 3,  # 'ע'
+        26: 3,  # 'ף'
+        18: 3,  # 'פ'
+        27: 3,  # 'ץ'
+        21: 3,  # 'צ'
+        17: 3,  # 'ק'
+        7: 3,  # 'ר'
+        10: 3,  # 'ש'
+        5: 3,  # 'ת'
+        32: 1,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 2,  # '…'
+    },
+    25: {  # 'ך'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 2,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 2,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 1,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 1,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 1,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 1,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 1,  # 'ל'
+        11: 0,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 1,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    15: {  # 'כ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 2,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 2,  # 'ִ'
+        37: 2,  # 'ֵ'
+        36: 2,  # 'ֶ'
+        31: 2,  # 'ַ'
+        29: 2,  # 'ָ'
+        35: 1,  # 'ֹ'
+        62: 1,  # 'ֻ'
+        28: 3,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 3,  # 'א'
+        8: 3,  # 'ב'
+        20: 2,  # 'ג'
+        16: 3,  # 'ד'
+        3: 3,  # 'ה'
+        2: 3,  # 'ו'
+        24: 3,  # 'ז'
+        14: 3,  # 'ח'
+        22: 2,  # 'ט'
+        1: 3,  # 'י'
+        25: 3,  # 'ך'
+        15: 3,  # 'כ'
+        4: 3,  # 'ל'
+        11: 3,  # 'ם'
+        6: 3,  # 'מ'
+        23: 3,  # 'ן'
+        12: 3,  # 'נ'
+        19: 3,  # 'ס'
+        13: 2,  # 'ע'
+        26: 3,  # 'ף'
+        18: 3,  # 'פ'
+        27: 1,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 2,  # 'ק'
+        7: 3,  # 'ר'
+        10: 3,  # 'ש'
+        5: 3,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    4: {  # 'ל'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 1,  # '\xa0'
+        55: 1,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 3,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 2,  # 'ִ'
+        37: 2,  # 'ֵ'
+        36: 2,  # 'ֶ'
+        31: 2,  # 'ַ'
+        29: 2,  # 'ָ'
+        35: 2,  # 'ֹ'
+        62: 1,  # 'ֻ'
+        28: 2,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 3,  # 'א'
+        8: 3,  # 'ב'
+        20: 3,  # 'ג'
+        16: 3,  # 'ד'
+        3: 3,  # 'ה'
+        2: 3,  # 'ו'
+        24: 3,  # 'ז'
+        14: 3,  # 'ח'
+        22: 3,  # 'ט'
+        1: 3,  # 'י'
+        25: 3,  # 'ך'
+        15: 3,  # 'כ'
+        4: 3,  # 'ל'
+        11: 3,  # 'ם'
+        6: 3,  # 'מ'
+        23: 2,  # 'ן'
+        12: 3,  # 'נ'
+        19: 3,  # 'ס'
+        13: 3,  # 'ע'
+        26: 2,  # 'ף'
+        18: 3,  # 'פ'
+        27: 2,  # 'ץ'
+        21: 3,  # 'צ'
+        17: 3,  # 'ק'
+        7: 3,  # 'ר'
+        10: 3,  # 'ש'
+        5: 3,  # 'ת'
+        32: 1,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    11: {  # 'ם'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 1,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 1,  # 'א'
+        8: 1,  # 'ב'
+        20: 1,  # 'ג'
+        16: 0,  # 'ד'
+        3: 1,  # 'ה'
+        2: 1,  # 'ו'
+        24: 1,  # 'ז'
+        14: 1,  # 'ח'
+        22: 0,  # 'ט'
+        1: 1,  # 'י'
+        25: 0,  # 'ך'
+        15: 1,  # 'כ'
+        4: 1,  # 'ל'
+        11: 1,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 1,  # 'נ'
+        19: 0,  # 'ס'
+        13: 1,  # 'ע'
+        26: 0,  # 'ף'
+        18: 1,  # 'פ'
+        27: 1,  # 'ץ'
+        21: 1,  # 'צ'
+        17: 1,  # 'ק'
+        7: 1,  # 'ר'
+        10: 1,  # 'ש'
+        5: 1,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 2,  # '…'
+    },
+    6: {  # 'מ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 1,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 2,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 2,  # 'ִ'
+        37: 2,  # 'ֵ'
+        36: 2,  # 'ֶ'
+        31: 2,  # 'ַ'
+        29: 2,  # 'ָ'
+        35: 2,  # 'ֹ'
+        62: 1,  # 'ֻ'
+        28: 2,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 3,  # 'א'
+        8: 3,  # 'ב'
+        20: 3,  # 'ג'
+        16: 3,  # 'ד'
+        3: 3,  # 'ה'
+        2: 3,  # 'ו'
+        24: 3,  # 'ז'
+        14: 3,  # 'ח'
+        22: 3,  # 'ט'
+        1: 3,  # 'י'
+        25: 2,  # 'ך'
+        15: 3,  # 'כ'
+        4: 3,  # 'ל'
+        11: 3,  # 'ם'
+        6: 3,  # 'מ'
+        23: 3,  # 'ן'
+        12: 3,  # 'נ'
+        19: 3,  # 'ס'
+        13: 3,  # 'ע'
+        26: 0,  # 'ף'
+        18: 3,  # 'פ'
+        27: 2,  # 'ץ'
+        21: 3,  # 'צ'
+        17: 3,  # 'ק'
+        7: 3,  # 'ר'
+        10: 3,  # 'ש'
+        5: 3,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    23: {  # 'ן'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 1,  # '\xa0'
+        55: 0,  # '´'
+        48: 1,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 1,  # 'א'
+        8: 1,  # 'ב'
+        20: 1,  # 'ג'
+        16: 1,  # 'ד'
+        3: 1,  # 'ה'
+        2: 1,  # 'ו'
+        24: 0,  # 'ז'
+        14: 1,  # 'ח'
+        22: 1,  # 'ט'
+        1: 1,  # 'י'
+        25: 0,  # 'ך'
+        15: 1,  # 'כ'
+        4: 1,  # 'ל'
+        11: 1,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 1,  # 'נ'
+        19: 1,  # 'ס'
+        13: 1,  # 'ע'
+        26: 1,  # 'ף'
+        18: 1,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 1,  # 'ק'
+        7: 1,  # 'ר'
+        10: 1,  # 'ש'
+        5: 1,  # 'ת'
+        32: 1,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 2,  # '…'
+    },
+    12: {  # 'נ'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
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+        1: 3,  # 'י'
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+        1: 3,  # 'י'
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+        46: 1,  # '”'
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+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 1,  # 'ְ'
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+        33: 2,  # 'ִ'
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+        40: 1,  # '…'
+    },
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+        55: 1,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 2,  # 'ְ'
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+        36: 1,  # 'ֶ'
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+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
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+        6: 3,  # 'מ'
+        23: 2,  # 'ן'
+        12: 3,  # 'נ'
+        19: 2,  # 'ס'
+        13: 3,  # 'ע'
+        26: 2,  # 'ף'
+        18: 3,  # 'פ'
+        27: 1,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 3,  # 'ק'
+        7: 3,  # 'ר'
+        10: 3,  # 'ש'
+        5: 3,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 1,  # '…'
+    },
+    5: {  # 'ת'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 1,  # '\xa0'
+        55: 0,  # '´'
+        48: 1,  # '¼'
+        39: 1,  # '½'
+        57: 0,  # '¾'
+        30: 2,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 2,  # 'ִ'
+        37: 2,  # 'ֵ'
+        36: 2,  # 'ֶ'
+        31: 2,  # 'ַ'
+        29: 2,  # 'ָ'
+        35: 1,  # 'ֹ'
+        62: 1,  # 'ֻ'
+        28: 2,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 3,  # 'א'
+        8: 3,  # 'ב'
+        20: 3,  # 'ג'
+        16: 2,  # 'ד'
+        3: 3,  # 'ה'
+        2: 3,  # 'ו'
+        24: 2,  # 'ז'
+        14: 3,  # 'ח'
+        22: 2,  # 'ט'
+        1: 3,  # 'י'
+        25: 2,  # 'ך'
+        15: 3,  # 'כ'
+        4: 3,  # 'ל'
+        11: 3,  # 'ם'
+        6: 3,  # 'מ'
+        23: 3,  # 'ן'
+        12: 3,  # 'נ'
+        19: 2,  # 'ס'
+        13: 3,  # 'ע'
+        26: 2,  # 'ף'
+        18: 3,  # 'פ'
+        27: 1,  # 'ץ'
+        21: 2,  # 'צ'
+        17: 3,  # 'ק'
+        7: 3,  # 'ר'
+        10: 3,  # 'ש'
+        5: 3,  # 'ת'
+        32: 1,  # '–'
+        52: 1,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 2,  # '…'
+    },
+    32: {  # '–'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 1,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 1,  # 'א'
+        8: 1,  # 'ב'
+        20: 1,  # 'ג'
+        16: 1,  # 'ד'
+        3: 1,  # 'ה'
+        2: 1,  # 'ו'
+        24: 0,  # 'ז'
+        14: 1,  # 'ח'
+        22: 0,  # 'ט'
+        1: 1,  # 'י'
+        25: 0,  # 'ך'
+        15: 1,  # 'כ'
+        4: 1,  # 'ל'
+        11: 0,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 1,  # 'ס'
+        13: 1,  # 'ע'
+        26: 0,  # 'ף'
+        18: 1,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 1,  # 'צ'
+        17: 0,  # 'ק'
+        7: 1,  # 'ר'
+        10: 1,  # 'ש'
+        5: 1,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    52: {  # '’'
+        50: 1,  # 'a'
+        60: 0,  # 'c'
+        61: 1,  # 'd'
+        42: 1,  # 'e'
+        53: 1,  # 'i'
+        56: 1,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 1,  # 'r'
+        43: 2,  # 's'
+        44: 2,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 0,  # 'ה'
+        2: 1,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 0,  # 'ש'
+        5: 1,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    47: {  # '“'
+        50: 1,  # 'a'
+        60: 1,  # 'c'
+        61: 1,  # 'd'
+        42: 1,  # 'e'
+        53: 1,  # 'i'
+        56: 1,  # 'l'
+        54: 1,  # 'n'
+        49: 1,  # 'o'
+        51: 1,  # 'r'
+        43: 1,  # 's'
+        44: 1,  # 't'
+        63: 1,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 2,  # 'א'
+        8: 1,  # 'ב'
+        20: 1,  # 'ג'
+        16: 1,  # 'ד'
+        3: 1,  # 'ה'
+        2: 1,  # 'ו'
+        24: 1,  # 'ז'
+        14: 1,  # 'ח'
+        22: 1,  # 'ט'
+        1: 1,  # 'י'
+        25: 0,  # 'ך'
+        15: 1,  # 'כ'
+        4: 1,  # 'ל'
+        11: 0,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 1,  # 'נ'
+        19: 1,  # 'ס'
+        13: 1,  # 'ע'
+        26: 0,  # 'ף'
+        18: 1,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 1,  # 'צ'
+        17: 1,  # 'ק'
+        7: 1,  # 'ר'
+        10: 1,  # 'ש'
+        5: 1,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    46: {  # '”'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 1,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 1,  # 'א'
+        8: 1,  # 'ב'
+        20: 1,  # 'ג'
+        16: 0,  # 'ד'
+        3: 0,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 1,  # 'י'
+        25: 0,  # 'ך'
+        15: 1,  # 'כ'
+        4: 1,  # 'ל'
+        11: 0,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 1,  # 'צ'
+        17: 0,  # 'ק'
+        7: 1,  # 'ר'
+        10: 0,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 0,  # '†'
+        40: 0,  # '…'
+    },
+    58: {  # '†'
+        50: 0,  # 'a'
+        60: 0,  # 'c'
+        61: 0,  # 'd'
+        42: 0,  # 'e'
+        53: 0,  # 'i'
+        56: 0,  # 'l'
+        54: 0,  # 'n'
+        49: 0,  # 'o'
+        51: 0,  # 'r'
+        43: 0,  # 's'
+        44: 0,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 0,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 0,  # 'ה'
+        2: 0,  # 'ו'
+        24: 0,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 0,  # 'י'
+        25: 0,  # 'ך'
+        15: 0,  # 'כ'
+        4: 0,  # 'ל'
+        11: 0,  # 'ם'
+        6: 0,  # 'מ'
+        23: 0,  # 'ן'
+        12: 0,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 0,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 0,  # 'ר'
+        10: 0,  # 'ש'
+        5: 0,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 0,  # '”'
+        58: 2,  # '†'
+        40: 0,  # '…'
+    },
+    40: {  # '…'
+        50: 1,  # 'a'
+        60: 1,  # 'c'
+        61: 1,  # 'd'
+        42: 1,  # 'e'
+        53: 1,  # 'i'
+        56: 0,  # 'l'
+        54: 1,  # 'n'
+        49: 0,  # 'o'
+        51: 1,  # 'r'
+        43: 1,  # 's'
+        44: 1,  # 't'
+        63: 0,  # 'u'
+        34: 0,  # '\xa0'
+        55: 0,  # '´'
+        48: 0,  # '¼'
+        39: 0,  # '½'
+        57: 0,  # '¾'
+        30: 0,  # 'ְ'
+        59: 0,  # 'ֱ'
+        41: 0,  # 'ֲ'
+        33: 0,  # 'ִ'
+        37: 0,  # 'ֵ'
+        36: 0,  # 'ֶ'
+        31: 0,  # 'ַ'
+        29: 0,  # 'ָ'
+        35: 0,  # 'ֹ'
+        62: 0,  # 'ֻ'
+        28: 0,  # 'ּ'
+        38: 0,  # 'ׁ'
+        45: 0,  # 'ׂ'
+        9: 1,  # 'א'
+        8: 0,  # 'ב'
+        20: 0,  # 'ג'
+        16: 0,  # 'ד'
+        3: 1,  # 'ה'
+        2: 1,  # 'ו'
+        24: 1,  # 'ז'
+        14: 0,  # 'ח'
+        22: 0,  # 'ט'
+        1: 1,  # 'י'
+        25: 0,  # 'ך'
+        15: 1,  # 'כ'
+        4: 1,  # 'ל'
+        11: 0,  # 'ם'
+        6: 1,  # 'מ'
+        23: 0,  # 'ן'
+        12: 1,  # 'נ'
+        19: 0,  # 'ס'
+        13: 0,  # 'ע'
+        26: 0,  # 'ף'
+        18: 1,  # 'פ'
+        27: 0,  # 'ץ'
+        21: 0,  # 'צ'
+        17: 0,  # 'ק'
+        7: 1,  # 'ר'
+        10: 1,  # 'ש'
+        5: 1,  # 'ת'
+        32: 0,  # '–'
+        52: 0,  # '’'
+        47: 0,  # '“'
+        46: 1,  # '”'
+        58: 0,  # '†'
+        40: 2,  # '…'
+    },
+}
+
+# 255: Undefined characters that did not exist in training text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+# 251: Control characters
+
+# Character Mapping Table(s):
+WINDOWS_1255_HEBREW_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 69,  # 'A'
+     66: 91,  # 'B'
+     67: 79,  # 'C'
+     68: 80,  # 'D'
+     69: 92,  # 'E'
+     70: 89,  # 'F'
+     71: 97,  # 'G'
+     72: 90,  # 'H'
+     73: 68,  # 'I'
+     74: 111,  # 'J'
+     75: 112,  # 'K'
+     76: 82,  # 'L'
+     77: 73,  # 'M'
+     78: 95,  # 'N'
+     79: 85,  # 'O'
+     80: 78,  # 'P'
+     81: 121,  # 'Q'
+     82: 86,  # 'R'
+     83: 71,  # 'S'
+     84: 67,  # 'T'
+     85: 102,  # 'U'
+     86: 107,  # 'V'
+     87: 84,  # 'W'
+     88: 114,  # 'X'
+     89: 103,  # 'Y'
+     90: 115,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 50,  # 'a'
+     98: 74,  # 'b'
+     99: 60,  # 'c'
+     100: 61,  # 'd'
+     101: 42,  # 'e'
+     102: 76,  # 'f'
+     103: 70,  # 'g'
+     104: 64,  # 'h'
+     105: 53,  # 'i'
+     106: 105,  # 'j'
+     107: 93,  # 'k'
+     108: 56,  # 'l'
+     109: 65,  # 'm'
+     110: 54,  # 'n'
+     111: 49,  # 'o'
+     112: 66,  # 'p'
+     113: 110,  # 'q'
+     114: 51,  # 'r'
+     115: 43,  # 's'
+     116: 44,  # 't'
+     117: 63,  # 'u'
+     118: 81,  # 'v'
+     119: 77,  # 'w'
+     120: 98,  # 'x'
+     121: 75,  # 'y'
+     122: 108,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 124,  # '€'
+     129: 202,  # None
+     130: 203,  # '‚'
+     131: 204,  # 'ƒ'
+     132: 205,  # '„'
+     133: 40,  # '…'
+     134: 58,  # '†'
+     135: 206,  # '‡'
+     136: 207,  # 'ˆ'
+     137: 208,  # '‰'
+     138: 209,  # None
+     139: 210,  # '‹'
+     140: 211,  # None
+     141: 212,  # None
+     142: 213,  # None
+     143: 214,  # None
+     144: 215,  # None
+     145: 83,  # '‘'
+     146: 52,  # '’'
+     147: 47,  # '“'
+     148: 46,  # '”'
+     149: 72,  # '•'
+     150: 32,  # '–'
+     151: 94,  # '—'
+     152: 216,  # '˜'
+     153: 113,  # '™'
+     154: 217,  # None
+     155: 109,  # '›'
+     156: 218,  # None
+     157: 219,  # None
+     158: 220,  # None
+     159: 221,  # None
+     160: 34,  # '\xa0'
+     161: 116,  # '¡'
+     162: 222,  # '¢'
+     163: 118,  # '£'
+     164: 100,  # '₪'
+     165: 223,  # '¥'
+     166: 224,  # '¦'
+     167: 117,  # '§'
+     168: 119,  # '¨'
+     169: 104,  # '©'
+     170: 125,  # '×'
+     171: 225,  # '«'
+     172: 226,  # '¬'
+     173: 87,  # '\xad'
+     174: 99,  # '®'
+     175: 227,  # '¯'
+     176: 106,  # '°'
+     177: 122,  # '±'
+     178: 123,  # '²'
+     179: 228,  # '³'
+     180: 55,  # '´'
+     181: 229,  # 'µ'
+     182: 230,  # '¶'
+     183: 101,  # '·'
+     184: 231,  # '¸'
+     185: 232,  # '¹'
+     186: 120,  # '÷'
+     187: 233,  # '»'
+     188: 48,  # '¼'
+     189: 39,  # '½'
+     190: 57,  # '¾'
+     191: 234,  # '¿'
+     192: 30,  # 'ְ'
+     193: 59,  # 'ֱ'
+     194: 41,  # 'ֲ'
+     195: 88,  # 'ֳ'
+     196: 33,  # 'ִ'
+     197: 37,  # 'ֵ'
+     198: 36,  # 'ֶ'
+     199: 31,  # 'ַ'
+     200: 29,  # 'ָ'
+     201: 35,  # 'ֹ'
+     202: 235,  # None
+     203: 62,  # 'ֻ'
+     204: 28,  # 'ּ'
+     205: 236,  # 'ֽ'
+     206: 126,  # '־'
+     207: 237,  # 'ֿ'
+     208: 238,  # '׀'
+     209: 38,  # 'ׁ'
+     210: 45,  # 'ׂ'
+     211: 239,  # '׃'
+     212: 240,  # 'װ'
+     213: 241,  # 'ױ'
+     214: 242,  # 'ײ'
+     215: 243,  # '׳'
+     216: 127,  # '״'
+     217: 244,  # None
+     218: 245,  # None
+     219: 246,  # None
+     220: 247,  # None
+     221: 248,  # None
+     222: 249,  # None
+     223: 250,  # None
+     224: 9,  # 'א'
+     225: 8,  # 'ב'
+     226: 20,  # 'ג'
+     227: 16,  # 'ד'
+     228: 3,  # 'ה'
+     229: 2,  # 'ו'
+     230: 24,  # 'ז'
+     231: 14,  # 'ח'
+     232: 22,  # 'ט'
+     233: 1,  # 'י'
+     234: 25,  # 'ך'
+     235: 15,  # 'כ'
+     236: 4,  # 'ל'
+     237: 11,  # 'ם'
+     238: 6,  # 'מ'
+     239: 23,  # 'ן'
+     240: 12,  # 'נ'
+     241: 19,  # 'ס'
+     242: 13,  # 'ע'
+     243: 26,  # 'ף'
+     244: 18,  # 'פ'
+     245: 27,  # 'ץ'
+     246: 21,  # 'צ'
+     247: 17,  # 'ק'
+     248: 7,  # 'ר'
+     249: 10,  # 'ש'
+     250: 5,  # 'ת'
+     251: 251,  # None
+     252: 252,  # None
+     253: 128,  # '\u200e'
+     254: 96,  # '\u200f'
+     255: 253,  # None
+}
+
+WINDOWS_1255_HEBREW_MODEL = SingleByteCharSetModel(charset_name='windows-1255',
+                                                   language='Hebrew',
+                                                   char_to_order_map=WINDOWS_1255_HEBREW_CHAR_TO_ORDER,
+                                                   language_model=HEBREW_LANG_MODEL,
+                                                   typical_positive_ratio=0.984004,
+                                                   keep_ascii_letters=False,
+                                                   alphabet='אבגדהוזחטיךכלםמןנסעףפץצקרשתװױײ')
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langhungarianmodel.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langhungarianmodel.py
new file mode 100644
index 0000000..bbc5cda
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langhungarianmodel.py
@@ -0,0 +1,4650 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from pip._vendor.chardet.sbcharsetprober import SingleByteCharSetModel
+
+
+# 3: Positive
+# 2: Likely
+# 1: Unlikely
+# 0: Negative
+
+HUNGARIAN_LANG_MODEL = {
+    28: {  # 'A'
+        28: 0,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 2,  # 'D'
+        32: 1,  # 'E'
+        50: 1,  # 'F'
+        49: 2,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 2,  # 'K'
+        41: 2,  # 'L'
+        34: 1,  # 'M'
+        35: 2,  # 'N'
+        47: 1,  # 'O'
+        46: 2,  # 'P'
+        43: 2,  # 'R'
+        33: 2,  # 'S'
+        37: 2,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 2,  # 'Z'
+        2: 0,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 2,  # 'd'
+        1: 1,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 1,  # 'h'
+        9: 1,  # 'i'
+        22: 1,  # 'j'
+        7: 2,  # 'k'
+        6: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 2,  # 'n'
+        8: 0,  # 'o'
+        23: 2,  # 'p'
+        10: 2,  # 'r'
+        5: 1,  # 's'
+        3: 1,  # 't'
+        21: 1,  # 'u'
+        19: 1,  # 'v'
+        62: 1,  # 'x'
+        16: 0,  # 'y'
+        11: 3,  # 'z'
+        51: 1,  # 'Á'
+        44: 0,  # 'É'
+        61: 1,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    40: {  # 'B'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 0,  # 'M'
+        35: 1,  # 'N'
+        47: 2,  # 'O'
+        46: 0,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 3,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 2,  # 'i'
+        22: 1,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 2,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 3,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 0,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 2,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    54: {  # 'C'
+        28: 1,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 1,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 0,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 2,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 0,  # 'V'
+        55: 1,  # 'Y'
+        52: 1,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 1,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 1,  # 'h'
+        9: 1,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 3,  # 's'
+        3: 0,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 1,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    45: {  # 'D'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 0,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 0,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 2,  # 'O'
+        46: 0,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 1,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 3,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 1,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 1,  # 'o'
+        23: 0,  # 'p'
+        10: 2,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 2,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 1,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 1,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    32: {  # 'E'
+        28: 1,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 1,  # 'E'
+        50: 1,  # 'F'
+        49: 2,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 2,  # 'K'
+        41: 2,  # 'L'
+        34: 2,  # 'M'
+        35: 2,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 2,  # 'R'
+        33: 2,  # 'S'
+        37: 2,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 1,  # 'Z'
+        2: 1,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 2,  # 'd'
+        1: 1,  # 'e'
+        27: 1,  # 'f'
+        12: 3,  # 'g'
+        20: 1,  # 'h'
+        9: 1,  # 'i'
+        22: 1,  # 'j'
+        7: 1,  # 'k'
+        6: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 2,  # 'n'
+        8: 0,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 2,  # 's'
+        3: 1,  # 't'
+        21: 2,  # 'u'
+        19: 1,  # 'v'
+        62: 1,  # 'x'
+        16: 0,  # 'y'
+        11: 3,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 0,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 1,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    50: {  # 'F'
+        28: 1,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 1,  # 'E'
+        50: 1,  # 'F'
+        49: 0,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 1,  # 'O'
+        46: 0,  # 'P'
+        43: 1,  # 'R'
+        33: 0,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 0,  # 'V'
+        55: 1,  # 'Y'
+        52: 0,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 1,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 2,  # 'i'
+        22: 1,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 2,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 0,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 0,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 2,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    49: {  # 'G'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 2,  # 'Y'
+        52: 1,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 1,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 2,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 2,  # 'y'
+        11: 0,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 0,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 1,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    38: {  # 'H'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 0,  # 'D'
+        32: 1,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 1,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 1,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 1,  # 'O'
+        46: 0,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 0,  # 'V'
+        55: 1,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 2,  # 'i'
+        22: 1,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 0,  # 'n'
+        8: 3,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 2,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 0,  # 'z'
+        51: 2,  # 'Á'
+        44: 2,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 1,  # 'é'
+        30: 2,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    39: {  # 'I'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 1,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 2,  # 'K'
+        41: 2,  # 'L'
+        34: 1,  # 'M'
+        35: 2,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 2,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 2,  # 'Z'
+        2: 0,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 2,  # 'd'
+        1: 0,  # 'e'
+        27: 1,  # 'f'
+        12: 2,  # 'g'
+        20: 1,  # 'h'
+        9: 0,  # 'i'
+        22: 1,  # 'j'
+        7: 1,  # 'k'
+        6: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 1,  # 'n'
+        8: 0,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 2,  # 's'
+        3: 2,  # 't'
+        21: 0,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 1,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 0,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    53: {  # 'J'
+        28: 2,  # 'A'
+        40: 0,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 1,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 1,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 1,  # 'o'
+        23: 0,  # 'p'
+        10: 0,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 2,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 0,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 0,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 1,  # 'é'
+        30: 0,  # 'í'
+        25: 2,  # 'ó'
+        24: 2,  # 'ö'
+        31: 1,  # 'ú'
+        29: 0,  # 'ü'
+        42: 1,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    36: {  # 'K'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 0,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 2,  # 'O'
+        46: 0,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 0,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 1,  # 'f'
+        12: 0,  # 'g'
+        20: 1,  # 'h'
+        9: 3,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 2,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 1,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 0,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 2,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 2,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 2,  # 'ö'
+        31: 1,  # 'ú'
+        29: 2,  # 'ü'
+        42: 1,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    41: {  # 'L'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 2,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 2,  # 'O'
+        46: 0,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 2,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 1,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 3,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 2,  # 'i'
+        22: 1,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 0,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 2,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 0,  # 'z'
+        51: 2,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 0,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    34: {  # 'M'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 0,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 1,  # 'Z'
+        2: 3,  # 'a'
+        18: 0,  # 'b'
+        26: 1,  # 'c'
+        17: 0,  # 'd'
+        1: 3,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 3,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 3,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 2,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 0,  # 'z'
+        51: 2,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 2,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    35: {  # 'N'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 2,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 2,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 2,  # 'Y'
+        52: 1,  # 'Z'
+        2: 3,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 3,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 2,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 1,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 0,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 2,  # 'y'
+        11: 0,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 1,  # 'á'
+        15: 2,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 1,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    47: {  # 'O'
+        28: 1,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 1,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 2,  # 'K'
+        41: 2,  # 'L'
+        34: 2,  # 'M'
+        35: 2,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 2,  # 'R'
+        33: 2,  # 'S'
+        37: 2,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 1,  # 'Z'
+        2: 0,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 1,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 1,  # 'h'
+        9: 1,  # 'i'
+        22: 1,  # 'j'
+        7: 2,  # 'k'
+        6: 2,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 1,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 1,  # 's'
+        3: 2,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 1,  # 'x'
+        16: 0,  # 'y'
+        11: 1,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 0,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    46: {  # 'P'
+        28: 1,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 1,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 0,  # 'M'
+        35: 1,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 2,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 1,  # 'f'
+        12: 0,  # 'g'
+        20: 1,  # 'h'
+        9: 2,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 1,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 2,  # 'r'
+        5: 1,  # 's'
+        3: 0,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 0,  # 'z'
+        51: 2,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 3,  # 'á'
+        15: 2,  # 'é'
+        30: 0,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 0,  # 'ú'
+        29: 1,  # 'ü'
+        42: 1,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    43: {  # 'R'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 2,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 2,  # 'S'
+        37: 2,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 1,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 1,  # 'h'
+        9: 2,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 0,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 0,  # 'z'
+        51: 2,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 2,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 2,  # 'é'
+        30: 1,  # 'í'
+        25: 2,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    33: {  # 'S'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 2,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 2,  # 'S'
+        37: 2,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 3,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 1,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 1,  # 'h'
+        9: 2,  # 'i'
+        22: 0,  # 'j'
+        7: 1,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 0,  # 'n'
+        8: 2,  # 'o'
+        23: 1,  # 'p'
+        10: 0,  # 'r'
+        5: 0,  # 's'
+        3: 1,  # 't'
+        21: 1,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 3,  # 'z'
+        51: 2,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    37: {  # 'T'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 2,  # 'O'
+        46: 1,  # 'P'
+        43: 2,  # 'R'
+        33: 1,  # 'S'
+        37: 2,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 1,  # 'Z'
+        2: 2,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 1,  # 'h'
+        9: 2,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 1,  # 's'
+        3: 0,  # 't'
+        21: 2,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 1,  # 'z'
+        51: 2,  # 'Á'
+        44: 2,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 2,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    57: {  # 'U'
+        28: 1,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 1,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 2,  # 'S'
+        37: 1,  # 'T'
+        57: 0,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 0,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 1,  # 'e'
+        27: 0,  # 'f'
+        12: 2,  # 'g'
+        20: 0,  # 'h'
+        9: 0,  # 'i'
+        22: 1,  # 'j'
+        7: 1,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 0,  # 'o'
+        23: 1,  # 'p'
+        10: 1,  # 'r'
+        5: 1,  # 's'
+        3: 1,  # 't'
+        21: 0,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 1,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    48: {  # 'V'
+        28: 2,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 0,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 2,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 2,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 2,  # 'o'
+        23: 0,  # 'p'
+        10: 0,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 0,  # 'z'
+        51: 2,  # 'Á'
+        44: 2,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 2,  # 'á'
+        15: 2,  # 'é'
+        30: 1,  # 'í'
+        25: 0,  # 'ó'
+        24: 1,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    55: {  # 'Y'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 1,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 2,  # 'Z'
+        2: 1,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 1,  # 'd'
+        1: 1,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 0,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 0,  # 'n'
+        8: 1,  # 'o'
+        23: 1,  # 'p'
+        10: 0,  # 'r'
+        5: 0,  # 's'
+        3: 0,  # 't'
+        21: 0,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 0,  # 'z'
+        51: 1,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    52: {  # 'Z'
+        28: 2,  # 'A'
+        40: 1,  # 'B'
+        54: 0,  # 'C'
+        45: 1,  # 'D'
+        32: 2,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 2,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 2,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 2,  # 'S'
+        37: 1,  # 'T'
+        57: 1,  # 'U'
+        48: 1,  # 'V'
+        55: 1,  # 'Y'
+        52: 1,  # 'Z'
+        2: 1,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 1,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 1,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 1,  # 'n'
+        8: 1,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 2,  # 's'
+        3: 0,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 0,  # 'z'
+        51: 2,  # 'Á'
+        44: 1,  # 'É'
+        61: 1,  # 'Í'
+        58: 1,  # 'Ó'
+        59: 1,  # 'Ö'
+        60: 1,  # 'Ú'
+        63: 1,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    2: {  # 'a'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 1,  # 'a'
+        18: 3,  # 'b'
+        26: 3,  # 'c'
+        17: 3,  # 'd'
+        1: 2,  # 'e'
+        27: 2,  # 'f'
+        12: 3,  # 'g'
+        20: 3,  # 'h'
+        9: 3,  # 'i'
+        22: 3,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 2,  # 'o'
+        23: 3,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 3,  # 'v'
+        62: 1,  # 'x'
+        16: 2,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    18: {  # 'b'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 3,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 3,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 1,  # 'h'
+        9: 3,  # 'i'
+        22: 2,  # 'j'
+        7: 2,  # 'k'
+        6: 2,  # 'l'
+        13: 1,  # 'm'
+        4: 2,  # 'n'
+        8: 3,  # 'o'
+        23: 1,  # 'p'
+        10: 3,  # 'r'
+        5: 2,  # 's'
+        3: 1,  # 't'
+        21: 3,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 2,  # 'í'
+        25: 3,  # 'ó'
+        24: 2,  # 'ö'
+        31: 2,  # 'ú'
+        29: 2,  # 'ü'
+        42: 2,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    26: {  # 'c'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 1,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 1,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 2,  # 'a'
+        18: 1,  # 'b'
+        26: 2,  # 'c'
+        17: 1,  # 'd'
+        1: 3,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 3,  # 'h'
+        9: 3,  # 'i'
+        22: 1,  # 'j'
+        7: 2,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 3,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 3,  # 's'
+        3: 2,  # 't'
+        21: 2,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 2,  # 'á'
+        15: 2,  # 'é'
+        30: 2,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    17: {  # 'd'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 2,  # 'b'
+        26: 1,  # 'c'
+        17: 2,  # 'd'
+        1: 3,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 2,  # 'h'
+        9: 3,  # 'i'
+        22: 3,  # 'j'
+        7: 2,  # 'k'
+        6: 1,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 1,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 3,  # 'v'
+        62: 0,  # 'x'
+        16: 2,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 3,  # 'í'
+        25: 3,  # 'ó'
+        24: 3,  # 'ö'
+        31: 2,  # 'ú'
+        29: 2,  # 'ü'
+        42: 2,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    1: {  # 'e'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 2,  # 'a'
+        18: 3,  # 'b'
+        26: 3,  # 'c'
+        17: 3,  # 'd'
+        1: 2,  # 'e'
+        27: 3,  # 'f'
+        12: 3,  # 'g'
+        20: 3,  # 'h'
+        9: 3,  # 'i'
+        22: 3,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 2,  # 'o'
+        23: 3,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 2,  # 'u'
+        19: 3,  # 'v'
+        62: 2,  # 'x'
+        16: 2,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    27: {  # 'f'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 3,  # 'e'
+        27: 2,  # 'f'
+        12: 1,  # 'g'
+        20: 1,  # 'h'
+        9: 3,  # 'i'
+        22: 2,  # 'j'
+        7: 1,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 3,  # 'o'
+        23: 0,  # 'p'
+        10: 3,  # 'r'
+        5: 1,  # 's'
+        3: 1,  # 't'
+        21: 2,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 0,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 3,  # 'ö'
+        31: 1,  # 'ú'
+        29: 2,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    12: {  # 'g'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 3,  # 'b'
+        26: 2,  # 'c'
+        17: 2,  # 'd'
+        1: 3,  # 'e'
+        27: 2,  # 'f'
+        12: 3,  # 'g'
+        20: 3,  # 'h'
+        9: 3,  # 'i'
+        22: 3,  # 'j'
+        7: 2,  # 'k'
+        6: 3,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 1,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 3,  # 'v'
+        62: 0,  # 'x'
+        16: 3,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 2,  # 'í'
+        25: 3,  # 'ó'
+        24: 2,  # 'ö'
+        31: 2,  # 'ú'
+        29: 2,  # 'ü'
+        42: 2,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    20: {  # 'h'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 0,  # 'd'
+        1: 3,  # 'e'
+        27: 0,  # 'f'
+        12: 1,  # 'g'
+        20: 2,  # 'h'
+        9: 3,  # 'i'
+        22: 1,  # 'j'
+        7: 1,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 3,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 2,  # 's'
+        3: 1,  # 't'
+        21: 3,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 2,  # 'y'
+        11: 0,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 3,  # 'í'
+        25: 2,  # 'ó'
+        24: 2,  # 'ö'
+        31: 2,  # 'ú'
+        29: 1,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    9: {  # 'i'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 3,  # 'b'
+        26: 3,  # 'c'
+        17: 3,  # 'd'
+        1: 3,  # 'e'
+        27: 3,  # 'f'
+        12: 3,  # 'g'
+        20: 3,  # 'h'
+        9: 2,  # 'i'
+        22: 2,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 2,  # 'o'
+        23: 2,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 3,  # 'v'
+        62: 1,  # 'x'
+        16: 1,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 2,  # 'é'
+        30: 1,  # 'í'
+        25: 3,  # 'ó'
+        24: 1,  # 'ö'
+        31: 2,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    22: {  # 'j'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 2,  # 'b'
+        26: 1,  # 'c'
+        17: 3,  # 'd'
+        1: 3,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 2,  # 'h'
+        9: 1,  # 'i'
+        22: 2,  # 'j'
+        7: 2,  # 'k'
+        6: 2,  # 'l'
+        13: 1,  # 'm'
+        4: 2,  # 'n'
+        8: 3,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 2,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 1,  # 'í'
+        25: 3,  # 'ó'
+        24: 3,  # 'ö'
+        31: 3,  # 'ú'
+        29: 2,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    7: {  # 'k'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 3,  # 'b'
+        26: 2,  # 'c'
+        17: 1,  # 'd'
+        1: 3,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 2,  # 'h'
+        9: 3,  # 'i'
+        22: 2,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 1,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 1,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 2,  # 'v'
+        62: 0,  # 'x'
+        16: 2,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 3,  # 'í'
+        25: 2,  # 'ó'
+        24: 3,  # 'ö'
+        31: 1,  # 'ú'
+        29: 3,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    6: {  # 'l'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 1,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 1,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 2,  # 'b'
+        26: 3,  # 'c'
+        17: 3,  # 'd'
+        1: 3,  # 'e'
+        27: 3,  # 'f'
+        12: 3,  # 'g'
+        20: 3,  # 'h'
+        9: 3,  # 'i'
+        22: 3,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 2,  # 'p'
+        10: 2,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 3,  # 'v'
+        62: 0,  # 'x'
+        16: 3,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 3,  # 'í'
+        25: 3,  # 'ó'
+        24: 3,  # 'ö'
+        31: 2,  # 'ú'
+        29: 2,  # 'ü'
+        42: 3,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    13: {  # 'm'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 3,  # 'b'
+        26: 2,  # 'c'
+        17: 1,  # 'd'
+        1: 3,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 2,  # 'h'
+        9: 3,  # 'i'
+        22: 2,  # 'j'
+        7: 1,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 2,  # 'n'
+        8: 3,  # 'o'
+        23: 3,  # 'p'
+        10: 2,  # 'r'
+        5: 2,  # 's'
+        3: 2,  # 't'
+        21: 3,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 2,  # 'í'
+        25: 2,  # 'ó'
+        24: 2,  # 'ö'
+        31: 2,  # 'ú'
+        29: 2,  # 'ü'
+        42: 1,  # 'ő'
+        56: 2,  # 'ű'
+    },
+    4: {  # 'n'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 3,  # 'b'
+        26: 3,  # 'c'
+        17: 3,  # 'd'
+        1: 3,  # 'e'
+        27: 2,  # 'f'
+        12: 3,  # 'g'
+        20: 3,  # 'h'
+        9: 3,  # 'i'
+        22: 2,  # 'j'
+        7: 3,  # 'k'
+        6: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 2,  # 'p'
+        10: 2,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 2,  # 'v'
+        62: 1,  # 'x'
+        16: 3,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 2,  # 'í'
+        25: 2,  # 'ó'
+        24: 3,  # 'ö'
+        31: 2,  # 'ú'
+        29: 3,  # 'ü'
+        42: 2,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    8: {  # 'o'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 1,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 2,  # 'a'
+        18: 3,  # 'b'
+        26: 3,  # 'c'
+        17: 3,  # 'd'
+        1: 2,  # 'e'
+        27: 2,  # 'f'
+        12: 3,  # 'g'
+        20: 3,  # 'h'
+        9: 2,  # 'i'
+        22: 2,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 1,  # 'o'
+        23: 3,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 2,  # 'u'
+        19: 3,  # 'v'
+        62: 1,  # 'x'
+        16: 1,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 1,  # 'á'
+        15: 2,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    23: {  # 'p'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 1,  # 'b'
+        26: 2,  # 'c'
+        17: 1,  # 'd'
+        1: 3,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 2,  # 'h'
+        9: 3,  # 'i'
+        22: 2,  # 'j'
+        7: 2,  # 'k'
+        6: 3,  # 'l'
+        13: 1,  # 'm'
+        4: 2,  # 'n'
+        8: 3,  # 'o'
+        23: 3,  # 'p'
+        10: 3,  # 'r'
+        5: 2,  # 's'
+        3: 2,  # 't'
+        21: 3,  # 'u'
+        19: 2,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 2,  # 'í'
+        25: 2,  # 'ó'
+        24: 2,  # 'ö'
+        31: 1,  # 'ú'
+        29: 2,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    10: {  # 'r'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 3,  # 'b'
+        26: 3,  # 'c'
+        17: 3,  # 'd'
+        1: 3,  # 'e'
+        27: 2,  # 'f'
+        12: 3,  # 'g'
+        20: 2,  # 'h'
+        9: 3,  # 'i'
+        22: 3,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 2,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 3,  # 'v'
+        62: 1,  # 'x'
+        16: 2,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 2,  # 'í'
+        25: 3,  # 'ó'
+        24: 3,  # 'ö'
+        31: 3,  # 'ú'
+        29: 3,  # 'ü'
+        42: 2,  # 'ő'
+        56: 2,  # 'ű'
+    },
+    5: {  # 's'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 3,  # 'b'
+        26: 2,  # 'c'
+        17: 2,  # 'd'
+        1: 3,  # 'e'
+        27: 2,  # 'f'
+        12: 2,  # 'g'
+        20: 2,  # 'h'
+        9: 3,  # 'i'
+        22: 1,  # 'j'
+        7: 3,  # 'k'
+        6: 2,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 2,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 2,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 3,  # 'í'
+        25: 3,  # 'ó'
+        24: 3,  # 'ö'
+        31: 3,  # 'ú'
+        29: 3,  # 'ü'
+        42: 2,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    3: {  # 't'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 3,  # 'b'
+        26: 2,  # 'c'
+        17: 1,  # 'd'
+        1: 3,  # 'e'
+        27: 2,  # 'f'
+        12: 1,  # 'g'
+        20: 3,  # 'h'
+        9: 3,  # 'i'
+        22: 3,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 1,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 3,  # 'v'
+        62: 0,  # 'x'
+        16: 3,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 2,  # 'í'
+        25: 3,  # 'ó'
+        24: 3,  # 'ö'
+        31: 3,  # 'ú'
+        29: 3,  # 'ü'
+        42: 3,  # 'ő'
+        56: 2,  # 'ű'
+    },
+    21: {  # 'u'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 1,  # 'a'
+        18: 2,  # 'b'
+        26: 2,  # 'c'
+        17: 3,  # 'd'
+        1: 2,  # 'e'
+        27: 1,  # 'f'
+        12: 3,  # 'g'
+        20: 2,  # 'h'
+        9: 2,  # 'i'
+        22: 2,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 1,  # 'o'
+        23: 2,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 1,  # 'u'
+        19: 3,  # 'v'
+        62: 1,  # 'x'
+        16: 1,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 2,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 0,  # 'ö'
+        31: 1,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    19: {  # 'v'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 2,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 3,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 1,  # 'h'
+        9: 3,  # 'i'
+        22: 1,  # 'j'
+        7: 1,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 3,  # 'o'
+        23: 1,  # 'p'
+        10: 1,  # 'r'
+        5: 2,  # 's'
+        3: 2,  # 't'
+        21: 2,  # 'u'
+        19: 2,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 2,  # 'í'
+        25: 2,  # 'ó'
+        24: 2,  # 'ö'
+        31: 1,  # 'ú'
+        29: 2,  # 'ü'
+        42: 1,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    62: {  # 'x'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 1,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 0,  # 'd'
+        1: 1,  # 'e'
+        27: 1,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 1,  # 'i'
+        22: 0,  # 'j'
+        7: 1,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 1,  # 'o'
+        23: 1,  # 'p'
+        10: 1,  # 'r'
+        5: 1,  # 's'
+        3: 1,  # 't'
+        21: 1,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 0,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 1,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    16: {  # 'y'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 2,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 3,  # 'e'
+        27: 2,  # 'f'
+        12: 2,  # 'g'
+        20: 2,  # 'h'
+        9: 3,  # 'i'
+        22: 2,  # 'j'
+        7: 2,  # 'k'
+        6: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 2,  # 'p'
+        10: 2,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 3,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 2,  # 'í'
+        25: 2,  # 'ó'
+        24: 3,  # 'ö'
+        31: 2,  # 'ú'
+        29: 2,  # 'ü'
+        42: 1,  # 'ő'
+        56: 2,  # 'ű'
+    },
+    11: {  # 'z'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 3,  # 'a'
+        18: 2,  # 'b'
+        26: 1,  # 'c'
+        17: 3,  # 'd'
+        1: 3,  # 'e'
+        27: 1,  # 'f'
+        12: 2,  # 'g'
+        20: 2,  # 'h'
+        9: 3,  # 'i'
+        22: 1,  # 'j'
+        7: 3,  # 'k'
+        6: 2,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 3,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 3,  # 'u'
+        19: 2,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 3,  # 'á'
+        15: 3,  # 'é'
+        30: 3,  # 'í'
+        25: 3,  # 'ó'
+        24: 3,  # 'ö'
+        31: 2,  # 'ú'
+        29: 3,  # 'ü'
+        42: 2,  # 'ő'
+        56: 1,  # 'ű'
+    },
+    51: {  # 'Á'
+        28: 0,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 0,  # 'E'
+        50: 1,  # 'F'
+        49: 2,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 2,  # 'L'
+        34: 1,  # 'M'
+        35: 2,  # 'N'
+        47: 0,  # 'O'
+        46: 1,  # 'P'
+        43: 2,  # 'R'
+        33: 2,  # 'S'
+        37: 1,  # 'T'
+        57: 0,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 0,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 0,  # 'e'
+        27: 0,  # 'f'
+        12: 1,  # 'g'
+        20: 1,  # 'h'
+        9: 0,  # 'i'
+        22: 1,  # 'j'
+        7: 1,  # 'k'
+        6: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 0,  # 'n'
+        8: 0,  # 'o'
+        23: 1,  # 'p'
+        10: 1,  # 'r'
+        5: 1,  # 's'
+        3: 1,  # 't'
+        21: 0,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 1,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    44: {  # 'É'
+        28: 0,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 1,  # 'E'
+        50: 0,  # 'F'
+        49: 2,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 2,  # 'L'
+        34: 1,  # 'M'
+        35: 2,  # 'N'
+        47: 0,  # 'O'
+        46: 1,  # 'P'
+        43: 2,  # 'R'
+        33: 2,  # 'S'
+        37: 2,  # 'T'
+        57: 0,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 0,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 0,  # 'e'
+        27: 0,  # 'f'
+        12: 1,  # 'g'
+        20: 1,  # 'h'
+        9: 0,  # 'i'
+        22: 1,  # 'j'
+        7: 1,  # 'k'
+        6: 2,  # 'l'
+        13: 1,  # 'm'
+        4: 2,  # 'n'
+        8: 0,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 3,  # 's'
+        3: 1,  # 't'
+        21: 0,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 0,  # 'z'
+        51: 0,  # 'Á'
+        44: 1,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    61: {  # 'Í'
+        28: 0,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 0,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 1,  # 'J'
+        36: 0,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 0,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 0,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 0,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 0,  # 'e'
+        27: 0,  # 'f'
+        12: 2,  # 'g'
+        20: 0,  # 'h'
+        9: 0,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 1,  # 'm'
+        4: 0,  # 'n'
+        8: 0,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 0,  # 's'
+        3: 1,  # 't'
+        21: 0,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    58: {  # 'Ó'
+        28: 1,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 0,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 1,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 2,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 0,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 0,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 0,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 0,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 2,  # 'h'
+        9: 0,  # 'i'
+        22: 0,  # 'j'
+        7: 1,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 1,  # 'n'
+        8: 0,  # 'o'
+        23: 1,  # 'p'
+        10: 1,  # 'r'
+        5: 1,  # 's'
+        3: 0,  # 't'
+        21: 0,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 1,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    59: {  # 'Ö'
+        28: 0,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 0,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 0,  # 'O'
+        46: 1,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 0,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 0,  # 'a'
+        18: 0,  # 'b'
+        26: 1,  # 'c'
+        17: 1,  # 'd'
+        1: 0,  # 'e'
+        27: 0,  # 'f'
+        12: 0,  # 'g'
+        20: 0,  # 'h'
+        9: 0,  # 'i'
+        22: 0,  # 'j'
+        7: 1,  # 'k'
+        6: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        8: 0,  # 'o'
+        23: 0,  # 'p'
+        10: 2,  # 'r'
+        5: 1,  # 's'
+        3: 1,  # 't'
+        21: 0,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    60: {  # 'Ú'
+        28: 0,  # 'A'
+        40: 1,  # 'B'
+        54: 1,  # 'C'
+        45: 1,  # 'D'
+        32: 0,  # 'E'
+        50: 1,  # 'F'
+        49: 1,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 0,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 0,  # 'a'
+        18: 0,  # 'b'
+        26: 0,  # 'c'
+        17: 0,  # 'd'
+        1: 0,  # 'e'
+        27: 0,  # 'f'
+        12: 2,  # 'g'
+        20: 0,  # 'h'
+        9: 0,  # 'i'
+        22: 2,  # 'j'
+        7: 0,  # 'k'
+        6: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 1,  # 'n'
+        8: 0,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 1,  # 's'
+        3: 1,  # 't'
+        21: 0,  # 'u'
+        19: 0,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 0,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    63: {  # 'Ü'
+        28: 0,  # 'A'
+        40: 1,  # 'B'
+        54: 0,  # 'C'
+        45: 1,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 1,  # 'G'
+        38: 1,  # 'H'
+        39: 0,  # 'I'
+        53: 1,  # 'J'
+        36: 1,  # 'K'
+        41: 1,  # 'L'
+        34: 1,  # 'M'
+        35: 1,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 1,  # 'R'
+        33: 1,  # 'S'
+        37: 1,  # 'T'
+        57: 0,  # 'U'
+        48: 1,  # 'V'
+        55: 0,  # 'Y'
+        52: 1,  # 'Z'
+        2: 0,  # 'a'
+        18: 1,  # 'b'
+        26: 0,  # 'c'
+        17: 1,  # 'd'
+        1: 0,  # 'e'
+        27: 0,  # 'f'
+        12: 1,  # 'g'
+        20: 0,  # 'h'
+        9: 0,  # 'i'
+        22: 0,  # 'j'
+        7: 0,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 1,  # 'n'
+        8: 0,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 1,  # 's'
+        3: 1,  # 't'
+        21: 0,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 1,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    14: {  # 'á'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 1,  # 'a'
+        18: 3,  # 'b'
+        26: 3,  # 'c'
+        17: 3,  # 'd'
+        1: 1,  # 'e'
+        27: 2,  # 'f'
+        12: 3,  # 'g'
+        20: 2,  # 'h'
+        9: 2,  # 'i'
+        22: 3,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 1,  # 'o'
+        23: 2,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 2,  # 'u'
+        19: 3,  # 'v'
+        62: 0,  # 'x'
+        16: 1,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 1,  # 'á'
+        15: 2,  # 'é'
+        30: 1,  # 'í'
+        25: 0,  # 'ó'
+        24: 1,  # 'ö'
+        31: 0,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    15: {  # 'é'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 1,  # 'a'
+        18: 3,  # 'b'
+        26: 2,  # 'c'
+        17: 3,  # 'd'
+        1: 1,  # 'e'
+        27: 1,  # 'f'
+        12: 3,  # 'g'
+        20: 3,  # 'h'
+        9: 2,  # 'i'
+        22: 2,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 1,  # 'o'
+        23: 3,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 0,  # 'u'
+        19: 3,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    30: {  # 'í'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 0,  # 'a'
+        18: 1,  # 'b'
+        26: 2,  # 'c'
+        17: 1,  # 'd'
+        1: 0,  # 'e'
+        27: 1,  # 'f'
+        12: 3,  # 'g'
+        20: 0,  # 'h'
+        9: 0,  # 'i'
+        22: 1,  # 'j'
+        7: 1,  # 'k'
+        6: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        8: 0,  # 'o'
+        23: 1,  # 'p'
+        10: 3,  # 'r'
+        5: 2,  # 's'
+        3: 3,  # 't'
+        21: 0,  # 'u'
+        19: 3,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    25: {  # 'ó'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 2,  # 'a'
+        18: 3,  # 'b'
+        26: 2,  # 'c'
+        17: 3,  # 'd'
+        1: 1,  # 'e'
+        27: 2,  # 'f'
+        12: 2,  # 'g'
+        20: 2,  # 'h'
+        9: 2,  # 'i'
+        22: 2,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        8: 1,  # 'o'
+        23: 2,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 1,  # 'u'
+        19: 2,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 0,  # 'ó'
+        24: 1,  # 'ö'
+        31: 1,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    24: {  # 'ö'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 0,  # 'a'
+        18: 3,  # 'b'
+        26: 1,  # 'c'
+        17: 2,  # 'd'
+        1: 0,  # 'e'
+        27: 1,  # 'f'
+        12: 2,  # 'g'
+        20: 1,  # 'h'
+        9: 0,  # 'i'
+        22: 1,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        8: 0,  # 'o'
+        23: 2,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 3,  # 't'
+        21: 0,  # 'u'
+        19: 3,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 3,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    31: {  # 'ú'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 1,  # 'a'
+        18: 1,  # 'b'
+        26: 2,  # 'c'
+        17: 1,  # 'd'
+        1: 1,  # 'e'
+        27: 2,  # 'f'
+        12: 3,  # 'g'
+        20: 1,  # 'h'
+        9: 1,  # 'i'
+        22: 3,  # 'j'
+        7: 1,  # 'k'
+        6: 3,  # 'l'
+        13: 1,  # 'm'
+        4: 2,  # 'n'
+        8: 0,  # 'o'
+        23: 1,  # 'p'
+        10: 3,  # 'r'
+        5: 3,  # 's'
+        3: 2,  # 't'
+        21: 1,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 1,  # 'á'
+        15: 1,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    29: {  # 'ü'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 1,  # 'a'
+        18: 1,  # 'b'
+        26: 1,  # 'c'
+        17: 2,  # 'd'
+        1: 1,  # 'e'
+        27: 1,  # 'f'
+        12: 3,  # 'g'
+        20: 2,  # 'h'
+        9: 1,  # 'i'
+        22: 1,  # 'j'
+        7: 3,  # 'k'
+        6: 3,  # 'l'
+        13: 1,  # 'm'
+        4: 3,  # 'n'
+        8: 0,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 2,  # 's'
+        3: 2,  # 't'
+        21: 0,  # 'u'
+        19: 2,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 1,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    42: {  # 'ő'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 1,  # 'a'
+        18: 2,  # 'b'
+        26: 1,  # 'c'
+        17: 2,  # 'd'
+        1: 1,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 1,  # 'h'
+        9: 1,  # 'i'
+        22: 1,  # 'j'
+        7: 2,  # 'k'
+        6: 3,  # 'l'
+        13: 1,  # 'm'
+        4: 2,  # 'n'
+        8: 1,  # 'o'
+        23: 1,  # 'p'
+        10: 2,  # 'r'
+        5: 2,  # 's'
+        3: 2,  # 't'
+        21: 1,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 1,  # 'é'
+        30: 1,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 1,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+    56: {  # 'ű'
+        28: 0,  # 'A'
+        40: 0,  # 'B'
+        54: 0,  # 'C'
+        45: 0,  # 'D'
+        32: 0,  # 'E'
+        50: 0,  # 'F'
+        49: 0,  # 'G'
+        38: 0,  # 'H'
+        39: 0,  # 'I'
+        53: 0,  # 'J'
+        36: 0,  # 'K'
+        41: 0,  # 'L'
+        34: 0,  # 'M'
+        35: 0,  # 'N'
+        47: 0,  # 'O'
+        46: 0,  # 'P'
+        43: 0,  # 'R'
+        33: 0,  # 'S'
+        37: 0,  # 'T'
+        57: 0,  # 'U'
+        48: 0,  # 'V'
+        55: 0,  # 'Y'
+        52: 0,  # 'Z'
+        2: 1,  # 'a'
+        18: 1,  # 'b'
+        26: 0,  # 'c'
+        17: 1,  # 'd'
+        1: 1,  # 'e'
+        27: 1,  # 'f'
+        12: 1,  # 'g'
+        20: 1,  # 'h'
+        9: 1,  # 'i'
+        22: 1,  # 'j'
+        7: 1,  # 'k'
+        6: 1,  # 'l'
+        13: 0,  # 'm'
+        4: 2,  # 'n'
+        8: 0,  # 'o'
+        23: 0,  # 'p'
+        10: 1,  # 'r'
+        5: 1,  # 's'
+        3: 1,  # 't'
+        21: 0,  # 'u'
+        19: 1,  # 'v'
+        62: 0,  # 'x'
+        16: 0,  # 'y'
+        11: 2,  # 'z'
+        51: 0,  # 'Á'
+        44: 0,  # 'É'
+        61: 0,  # 'Í'
+        58: 0,  # 'Ó'
+        59: 0,  # 'Ö'
+        60: 0,  # 'Ú'
+        63: 0,  # 'Ü'
+        14: 0,  # 'á'
+        15: 0,  # 'é'
+        30: 0,  # 'í'
+        25: 0,  # 'ó'
+        24: 0,  # 'ö'
+        31: 0,  # 'ú'
+        29: 0,  # 'ü'
+        42: 0,  # 'ő'
+        56: 0,  # 'ű'
+    },
+}
+
+# 255: Undefined characters that did not exist in training text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+# 251: Control characters
+
+# Character Mapping Table(s):
+WINDOWS_1250_HUNGARIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 28,  # 'A'
+     66: 40,  # 'B'
+     67: 54,  # 'C'
+     68: 45,  # 'D'
+     69: 32,  # 'E'
+     70: 50,  # 'F'
+     71: 49,  # 'G'
+     72: 38,  # 'H'
+     73: 39,  # 'I'
+     74: 53,  # 'J'
+     75: 36,  # 'K'
+     76: 41,  # 'L'
+     77: 34,  # 'M'
+     78: 35,  # 'N'
+     79: 47,  # 'O'
+     80: 46,  # 'P'
+     81: 72,  # 'Q'
+     82: 43,  # 'R'
+     83: 33,  # 'S'
+     84: 37,  # 'T'
+     85: 57,  # 'U'
+     86: 48,  # 'V'
+     87: 64,  # 'W'
+     88: 68,  # 'X'
+     89: 55,  # 'Y'
+     90: 52,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 2,  # 'a'
+     98: 18,  # 'b'
+     99: 26,  # 'c'
+     100: 17,  # 'd'
+     101: 1,  # 'e'
+     102: 27,  # 'f'
+     103: 12,  # 'g'
+     104: 20,  # 'h'
+     105: 9,  # 'i'
+     106: 22,  # 'j'
+     107: 7,  # 'k'
+     108: 6,  # 'l'
+     109: 13,  # 'm'
+     110: 4,  # 'n'
+     111: 8,  # 'o'
+     112: 23,  # 'p'
+     113: 67,  # 'q'
+     114: 10,  # 'r'
+     115: 5,  # 's'
+     116: 3,  # 't'
+     117: 21,  # 'u'
+     118: 19,  # 'v'
+     119: 65,  # 'w'
+     120: 62,  # 'x'
+     121: 16,  # 'y'
+     122: 11,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 161,  # '€'
+     129: 162,  # None
+     130: 163,  # '‚'
+     131: 164,  # None
+     132: 165,  # '„'
+     133: 166,  # '…'
+     134: 167,  # '†'
+     135: 168,  # '‡'
+     136: 169,  # None
+     137: 170,  # '‰'
+     138: 171,  # 'Š'
+     139: 172,  # '‹'
+     140: 173,  # 'Ś'
+     141: 174,  # 'Ť'
+     142: 175,  # 'Ž'
+     143: 176,  # 'Ź'
+     144: 177,  # None
+     145: 178,  # '‘'
+     146: 179,  # '’'
+     147: 180,  # '“'
+     148: 78,  # '”'
+     149: 181,  # '•'
+     150: 69,  # '–'
+     151: 182,  # '—'
+     152: 183,  # None
+     153: 184,  # '™'
+     154: 185,  # 'š'
+     155: 186,  # '›'
+     156: 187,  # 'ś'
+     157: 188,  # 'ť'
+     158: 189,  # 'ž'
+     159: 190,  # 'ź'
+     160: 191,  # '\xa0'
+     161: 192,  # 'ˇ'
+     162: 193,  # '˘'
+     163: 194,  # 'Ł'
+     164: 195,  # '¤'
+     165: 196,  # 'Ą'
+     166: 197,  # '¦'
+     167: 76,  # '§'
+     168: 198,  # '¨'
+     169: 199,  # '©'
+     170: 200,  # 'Ş'
+     171: 201,  # '«'
+     172: 202,  # '¬'
+     173: 203,  # '\xad'
+     174: 204,  # '®'
+     175: 205,  # 'Ż'
+     176: 81,  # '°'
+     177: 206,  # '±'
+     178: 207,  # '˛'
+     179: 208,  # 'ł'
+     180: 209,  # '´'
+     181: 210,  # 'µ'
+     182: 211,  # '¶'
+     183: 212,  # '·'
+     184: 213,  # '¸'
+     185: 214,  # 'ą'
+     186: 215,  # 'ş'
+     187: 216,  # '»'
+     188: 217,  # 'Ľ'
+     189: 218,  # '˝'
+     190: 219,  # 'ľ'
+     191: 220,  # 'ż'
+     192: 221,  # 'Ŕ'
+     193: 51,  # 'Á'
+     194: 83,  # 'Â'
+     195: 222,  # 'Ă'
+     196: 80,  # 'Ä'
+     197: 223,  # 'Ĺ'
+     198: 224,  # 'Ć'
+     199: 225,  # 'Ç'
+     200: 226,  # 'Č'
+     201: 44,  # 'É'
+     202: 227,  # 'Ę'
+     203: 228,  # 'Ë'
+     204: 229,  # 'Ě'
+     205: 61,  # 'Í'
+     206: 230,  # 'Î'
+     207: 231,  # 'Ď'
+     208: 232,  # 'Đ'
+     209: 233,  # 'Ń'
+     210: 234,  # 'Ň'
+     211: 58,  # 'Ó'
+     212: 235,  # 'Ô'
+     213: 66,  # 'Ő'
+     214: 59,  # 'Ö'
+     215: 236,  # '×'
+     216: 237,  # 'Ř'
+     217: 238,  # 'Ů'
+     218: 60,  # 'Ú'
+     219: 70,  # 'Ű'
+     220: 63,  # 'Ü'
+     221: 239,  # 'Ý'
+     222: 240,  # 'Ţ'
+     223: 241,  # 'ß'
+     224: 84,  # 'ŕ'
+     225: 14,  # 'á'
+     226: 75,  # 'â'
+     227: 242,  # 'ă'
+     228: 71,  # 'ä'
+     229: 82,  # 'ĺ'
+     230: 243,  # 'ć'
+     231: 73,  # 'ç'
+     232: 244,  # 'č'
+     233: 15,  # 'é'
+     234: 85,  # 'ę'
+     235: 79,  # 'ë'
+     236: 86,  # 'ě'
+     237: 30,  # 'í'
+     238: 77,  # 'î'
+     239: 87,  # 'ď'
+     240: 245,  # 'đ'
+     241: 246,  # 'ń'
+     242: 247,  # 'ň'
+     243: 25,  # 'ó'
+     244: 74,  # 'ô'
+     245: 42,  # 'ő'
+     246: 24,  # 'ö'
+     247: 248,  # '÷'
+     248: 249,  # 'ř'
+     249: 250,  # 'ů'
+     250: 31,  # 'ú'
+     251: 56,  # 'ű'
+     252: 29,  # 'ü'
+     253: 251,  # 'ý'
+     254: 252,  # 'ţ'
+     255: 253,  # '˙'
+}
+
+WINDOWS_1250_HUNGARIAN_MODEL = SingleByteCharSetModel(charset_name='windows-1250',
+                                                      language='Hungarian',
+                                                      char_to_order_map=WINDOWS_1250_HUNGARIAN_CHAR_TO_ORDER,
+                                                      language_model=HUNGARIAN_LANG_MODEL,
+                                                      typical_positive_ratio=0.947368,
+                                                      keep_ascii_letters=True,
+                                                      alphabet='ABCDEFGHIJKLMNOPRSTUVZabcdefghijklmnoprstuvzÁÉÍÓÖÚÜáéíóöúüŐőŰű')
+
+ISO_8859_2_HUNGARIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 28,  # 'A'
+     66: 40,  # 'B'
+     67: 54,  # 'C'
+     68: 45,  # 'D'
+     69: 32,  # 'E'
+     70: 50,  # 'F'
+     71: 49,  # 'G'
+     72: 38,  # 'H'
+     73: 39,  # 'I'
+     74: 53,  # 'J'
+     75: 36,  # 'K'
+     76: 41,  # 'L'
+     77: 34,  # 'M'
+     78: 35,  # 'N'
+     79: 47,  # 'O'
+     80: 46,  # 'P'
+     81: 71,  # 'Q'
+     82: 43,  # 'R'
+     83: 33,  # 'S'
+     84: 37,  # 'T'
+     85: 57,  # 'U'
+     86: 48,  # 'V'
+     87: 64,  # 'W'
+     88: 68,  # 'X'
+     89: 55,  # 'Y'
+     90: 52,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 2,  # 'a'
+     98: 18,  # 'b'
+     99: 26,  # 'c'
+     100: 17,  # 'd'
+     101: 1,  # 'e'
+     102: 27,  # 'f'
+     103: 12,  # 'g'
+     104: 20,  # 'h'
+     105: 9,  # 'i'
+     106: 22,  # 'j'
+     107: 7,  # 'k'
+     108: 6,  # 'l'
+     109: 13,  # 'm'
+     110: 4,  # 'n'
+     111: 8,  # 'o'
+     112: 23,  # 'p'
+     113: 67,  # 'q'
+     114: 10,  # 'r'
+     115: 5,  # 's'
+     116: 3,  # 't'
+     117: 21,  # 'u'
+     118: 19,  # 'v'
+     119: 65,  # 'w'
+     120: 62,  # 'x'
+     121: 16,  # 'y'
+     122: 11,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 159,  # '\x80'
+     129: 160,  # '\x81'
+     130: 161,  # '\x82'
+     131: 162,  # '\x83'
+     132: 163,  # '\x84'
+     133: 164,  # '\x85'
+     134: 165,  # '\x86'
+     135: 166,  # '\x87'
+     136: 167,  # '\x88'
+     137: 168,  # '\x89'
+     138: 169,  # '\x8a'
+     139: 170,  # '\x8b'
+     140: 171,  # '\x8c'
+     141: 172,  # '\x8d'
+     142: 173,  # '\x8e'
+     143: 174,  # '\x8f'
+     144: 175,  # '\x90'
+     145: 176,  # '\x91'
+     146: 177,  # '\x92'
+     147: 178,  # '\x93'
+     148: 179,  # '\x94'
+     149: 180,  # '\x95'
+     150: 181,  # '\x96'
+     151: 182,  # '\x97'
+     152: 183,  # '\x98'
+     153: 184,  # '\x99'
+     154: 185,  # '\x9a'
+     155: 186,  # '\x9b'
+     156: 187,  # '\x9c'
+     157: 188,  # '\x9d'
+     158: 189,  # '\x9e'
+     159: 190,  # '\x9f'
+     160: 191,  # '\xa0'
+     161: 192,  # 'Ą'
+     162: 193,  # '˘'
+     163: 194,  # 'Ł'
+     164: 195,  # '¤'
+     165: 196,  # 'Ľ'
+     166: 197,  # 'Ś'
+     167: 75,  # '§'
+     168: 198,  # '¨'
+     169: 199,  # 'Š'
+     170: 200,  # 'Ş'
+     171: 201,  # 'Ť'
+     172: 202,  # 'Ź'
+     173: 203,  # '\xad'
+     174: 204,  # 'Ž'
+     175: 205,  # 'Ż'
+     176: 79,  # '°'
+     177: 206,  # 'ą'
+     178: 207,  # '˛'
+     179: 208,  # 'ł'
+     180: 209,  # '´'
+     181: 210,  # 'ľ'
+     182: 211,  # 'ś'
+     183: 212,  # 'ˇ'
+     184: 213,  # '¸'
+     185: 214,  # 'š'
+     186: 215,  # 'ş'
+     187: 216,  # 'ť'
+     188: 217,  # 'ź'
+     189: 218,  # '˝'
+     190: 219,  # 'ž'
+     191: 220,  # 'ż'
+     192: 221,  # 'Ŕ'
+     193: 51,  # 'Á'
+     194: 81,  # 'Â'
+     195: 222,  # 'Ă'
+     196: 78,  # 'Ä'
+     197: 223,  # 'Ĺ'
+     198: 224,  # 'Ć'
+     199: 225,  # 'Ç'
+     200: 226,  # 'Č'
+     201: 44,  # 'É'
+     202: 227,  # 'Ę'
+     203: 228,  # 'Ë'
+     204: 229,  # 'Ě'
+     205: 61,  # 'Í'
+     206: 230,  # 'Î'
+     207: 231,  # 'Ď'
+     208: 232,  # 'Đ'
+     209: 233,  # 'Ń'
+     210: 234,  # 'Ň'
+     211: 58,  # 'Ó'
+     212: 235,  # 'Ô'
+     213: 66,  # 'Ő'
+     214: 59,  # 'Ö'
+     215: 236,  # '×'
+     216: 237,  # 'Ř'
+     217: 238,  # 'Ů'
+     218: 60,  # 'Ú'
+     219: 69,  # 'Ű'
+     220: 63,  # 'Ü'
+     221: 239,  # 'Ý'
+     222: 240,  # 'Ţ'
+     223: 241,  # 'ß'
+     224: 82,  # 'ŕ'
+     225: 14,  # 'á'
+     226: 74,  # 'â'
+     227: 242,  # 'ă'
+     228: 70,  # 'ä'
+     229: 80,  # 'ĺ'
+     230: 243,  # 'ć'
+     231: 72,  # 'ç'
+     232: 244,  # 'č'
+     233: 15,  # 'é'
+     234: 83,  # 'ę'
+     235: 77,  # 'ë'
+     236: 84,  # 'ě'
+     237: 30,  # 'í'
+     238: 76,  # 'î'
+     239: 85,  # 'ď'
+     240: 245,  # 'đ'
+     241: 246,  # 'ń'
+     242: 247,  # 'ň'
+     243: 25,  # 'ó'
+     244: 73,  # 'ô'
+     245: 42,  # 'ő'
+     246: 24,  # 'ö'
+     247: 248,  # '÷'
+     248: 249,  # 'ř'
+     249: 250,  # 'ů'
+     250: 31,  # 'ú'
+     251: 56,  # 'ű'
+     252: 29,  # 'ü'
+     253: 251,  # 'ý'
+     254: 252,  # 'ţ'
+     255: 253,  # '˙'
+}
+
+ISO_8859_2_HUNGARIAN_MODEL = SingleByteCharSetModel(charset_name='ISO-8859-2',
+                                                    language='Hungarian',
+                                                    char_to_order_map=ISO_8859_2_HUNGARIAN_CHAR_TO_ORDER,
+                                                    language_model=HUNGARIAN_LANG_MODEL,
+                                                    typical_positive_ratio=0.947368,
+                                                    keep_ascii_letters=True,
+                                                    alphabet='ABCDEFGHIJKLMNOPRSTUVZabcdefghijklmnoprstuvzÁÉÍÓÖÚÜáéíóöúüŐőŰű')
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langrussianmodel.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langrussianmodel.py
new file mode 100644
index 0000000..5594452
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langrussianmodel.py
@@ -0,0 +1,5718 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from pip._vendor.chardet.sbcharsetprober import SingleByteCharSetModel
+
+
+# 3: Positive
+# 2: Likely
+# 1: Unlikely
+# 0: Negative
+
+RUSSIAN_LANG_MODEL = {
+    37: {  # 'А'
+        37: 0,  # 'А'
+        44: 1,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 1,  # 'Ж'
+        51: 1,  # 'З'
+        42: 1,  # 'И'
+        60: 1,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 2,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 1,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 1,  # 'Ш'
+        63: 1,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 1,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 1,  # 'а'
+        21: 2,  # 'б'
+        10: 2,  # 'в'
+        19: 2,  # 'г'
+        13: 2,  # 'д'
+        2: 0,  # 'е'
+        24: 1,  # 'ж'
+        20: 1,  # 'з'
+        4: 0,  # 'и'
+        23: 1,  # 'й'
+        11: 2,  # 'к'
+        8: 3,  # 'л'
+        12: 2,  # 'м'
+        5: 2,  # 'н'
+        1: 0,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 2,  # 'у'
+        39: 2,  # 'ф'
+        26: 2,  # 'х'
+        28: 0,  # 'ц'
+        22: 1,  # 'ч'
+        25: 2,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 1,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    44: {  # 'Б'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 1,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 2,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 1,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 2,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 2,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 2,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    33: {  # 'В'
+        37: 2,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 0,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 1,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 2,  # 'а'
+        21: 1,  # 'б'
+        10: 1,  # 'в'
+        19: 1,  # 'г'
+        13: 2,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 2,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 1,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 2,  # 'н'
+        1: 3,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 3,  # 'с'
+        6: 2,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 1,  # 'х'
+        28: 1,  # 'ц'
+        22: 2,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 1,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 0,  # 'ю'
+        16: 1,  # 'я'
+    },
+    46: {  # 'Г'
+        37: 1,  # 'А'
+        44: 1,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 0,  # 'б'
+        10: 1,  # 'в'
+        19: 0,  # 'г'
+        13: 2,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 1,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 2,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 1,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    41: {  # 'Д'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 2,  # 'Е'
+        56: 1,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 0,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 3,  # 'а'
+        21: 0,  # 'б'
+        10: 2,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 3,  # 'ж'
+        20: 1,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 1,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 2,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    48: {  # 'Е'
+        37: 1,  # 'А'
+        44: 1,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 1,  # 'Ж'
+        51: 1,  # 'З'
+        42: 1,  # 'И'
+        60: 1,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 2,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 2,  # 'Р'
+        32: 2,  # 'С'
+        40: 1,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 1,  # 'Ш'
+        63: 1,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 0,  # 'а'
+        21: 0,  # 'б'
+        10: 2,  # 'в'
+        19: 2,  # 'г'
+        13: 2,  # 'д'
+        2: 2,  # 'е'
+        24: 1,  # 'ж'
+        20: 1,  # 'з'
+        4: 0,  # 'и'
+        23: 2,  # 'й'
+        11: 1,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 1,  # 'н'
+        1: 0,  # 'о'
+        15: 1,  # 'п'
+        9: 1,  # 'р'
+        7: 3,  # 'с'
+        6: 0,  # 'т'
+        14: 0,  # 'у'
+        39: 1,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 1,  # 'ш'
+        29: 2,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    56: {  # 'Ж'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 1,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 1,  # 'б'
+        10: 0,  # 'в'
+        19: 1,  # 'г'
+        13: 1,  # 'д'
+        2: 2,  # 'е'
+        24: 1,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 1,  # 'м'
+        5: 0,  # 'н'
+        1: 2,  # 'о'
+        15: 0,  # 'п'
+        9: 1,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 2,  # 'ю'
+        16: 0,  # 'я'
+    },
+    51: {  # 'З'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 1,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 1,  # 'б'
+        10: 2,  # 'в'
+        19: 0,  # 'г'
+        13: 2,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 1,  # 'л'
+        12: 1,  # 'м'
+        5: 2,  # 'н'
+        1: 2,  # 'о'
+        15: 0,  # 'п'
+        9: 1,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 1,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 1,  # 'я'
+    },
+    42: {  # 'И'
+        37: 1,  # 'А'
+        44: 1,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 1,  # 'Д'
+        48: 2,  # 'Е'
+        56: 1,  # 'Ж'
+        51: 1,  # 'З'
+        42: 1,  # 'И'
+        60: 1,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 2,  # 'С'
+        40: 1,  # 'Т'
+        52: 0,  # 'У'
+        53: 1,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 1,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 1,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 1,  # 'а'
+        21: 2,  # 'б'
+        10: 2,  # 'в'
+        19: 2,  # 'г'
+        13: 2,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 2,  # 'з'
+        4: 1,  # 'и'
+        23: 0,  # 'й'
+        11: 1,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 2,  # 'н'
+        1: 1,  # 'о'
+        15: 1,  # 'п'
+        9: 2,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 1,  # 'у'
+        39: 1,  # 'ф'
+        26: 2,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 1,  # 'ш'
+        29: 1,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    60: {  # 'Й'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 1,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 0,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 1,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 0,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 2,  # 'о'
+        15: 0,  # 'п'
+        9: 0,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 0,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    36: {  # 'К'
+        37: 2,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 1,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 1,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 2,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 0,  # 'б'
+        10: 1,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 2,  # 'л'
+        12: 0,  # 'м'
+        5: 1,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 2,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    49: {  # 'Л'
+        37: 2,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 1,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 1,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 0,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 0,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 1,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 2,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 1,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 1,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 1,  # 'л'
+        12: 0,  # 'м'
+        5: 1,  # 'н'
+        1: 2,  # 'о'
+        15: 0,  # 'п'
+        9: 0,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 2,  # 'ю'
+        16: 1,  # 'я'
+    },
+    38: {  # 'М'
+        37: 1,  # 'А'
+        44: 1,  # 'Б'
+        33: 1,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 1,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 1,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 3,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 1,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 1,  # 'л'
+        12: 1,  # 'м'
+        5: 2,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 1,  # 'р'
+        7: 1,  # 'с'
+        6: 0,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    31: {  # 'Н'
+        37: 2,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 1,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 1,  # 'З'
+        42: 2,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 1,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 1,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 3,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 1,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 3,  # 'у'
+        39: 0,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 2,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    34: {  # 'О'
+        37: 0,  # 'А'
+        44: 1,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 2,  # 'Д'
+        48: 1,  # 'Е'
+        56: 1,  # 'Ж'
+        51: 1,  # 'З'
+        42: 1,  # 'И'
+        60: 1,  # 'Й'
+        36: 1,  # 'К'
+        49: 2,  # 'Л'
+        38: 1,  # 'М'
+        31: 2,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 2,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 1,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 1,  # 'Ш'
+        63: 1,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 1,  # 'а'
+        21: 2,  # 'б'
+        10: 1,  # 'в'
+        19: 2,  # 'г'
+        13: 2,  # 'д'
+        2: 0,  # 'е'
+        24: 1,  # 'ж'
+        20: 1,  # 'з'
+        4: 0,  # 'и'
+        23: 1,  # 'й'
+        11: 2,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 3,  # 'н'
+        1: 0,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 1,  # 'у'
+        39: 1,  # 'ф'
+        26: 2,  # 'х'
+        28: 1,  # 'ц'
+        22: 2,  # 'ч'
+        25: 2,  # 'ш'
+        29: 1,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    35: {  # 'П'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 1,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 2,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 2,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 2,  # 'л'
+        12: 0,  # 'м'
+        5: 1,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 3,  # 'р'
+        7: 1,  # 'с'
+        6: 1,  # 'т'
+        14: 2,  # 'у'
+        39: 1,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 2,  # 'ь'
+        30: 1,  # 'э'
+        27: 0,  # 'ю'
+        16: 2,  # 'я'
+    },
+    45: {  # 'Р'
+        37: 2,  # 'А'
+        44: 1,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 1,  # 'Д'
+        48: 2,  # 'Е'
+        56: 1,  # 'Ж'
+        51: 0,  # 'З'
+        42: 2,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 2,  # 'О'
+        35: 0,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 1,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 1,  # 'Э'
+        59: 1,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 3,  # 'а'
+        21: 0,  # 'б'
+        10: 1,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 1,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 1,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 2,  # 'ы'
+        17: 0,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 2,  # 'я'
+    },
+    32: {  # 'С'
+        37: 1,  # 'А'
+        44: 1,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 2,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 1,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 1,  # 'Э'
+        59: 1,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 2,  # 'а'
+        21: 1,  # 'б'
+        10: 2,  # 'в'
+        19: 1,  # 'г'
+        13: 2,  # 'д'
+        2: 3,  # 'е'
+        24: 1,  # 'ж'
+        20: 1,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 2,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 2,  # 'н'
+        1: 2,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 1,  # 'с'
+        6: 3,  # 'т'
+        14: 2,  # 'у'
+        39: 1,  # 'ф'
+        26: 1,  # 'х'
+        28: 1,  # 'ц'
+        22: 1,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 1,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    40: {  # 'Т'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 2,  # 'О'
+        35: 0,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 1,  # 'Э'
+        59: 1,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 3,  # 'а'
+        21: 1,  # 'б'
+        10: 2,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 1,  # 'к'
+        8: 1,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 2,  # 'р'
+        7: 1,  # 'с'
+        6: 0,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 1,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    52: {  # 'У'
+        37: 1,  # 'А'
+        44: 1,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 1,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 1,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 1,  # 'Ш'
+        63: 1,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 1,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 1,  # 'а'
+        21: 2,  # 'б'
+        10: 2,  # 'в'
+        19: 1,  # 'г'
+        13: 2,  # 'д'
+        2: 1,  # 'е'
+        24: 2,  # 'ж'
+        20: 2,  # 'з'
+        4: 2,  # 'и'
+        23: 1,  # 'й'
+        11: 1,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 1,  # 'н'
+        1: 2,  # 'о'
+        15: 1,  # 'п'
+        9: 2,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 0,  # 'у'
+        39: 1,  # 'ф'
+        26: 1,  # 'х'
+        28: 1,  # 'ц'
+        22: 2,  # 'ч'
+        25: 1,  # 'ш'
+        29: 1,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 2,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    53: {  # 'Ф'
+        37: 1,  # 'А'
+        44: 1,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 1,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 1,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 2,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 2,  # 'о'
+        15: 0,  # 'п'
+        9: 2,  # 'р'
+        7: 0,  # 'с'
+        6: 1,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    55: {  # 'Х'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 0,  # 'б'
+        10: 2,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 0,  # 'н'
+        1: 2,  # 'о'
+        15: 0,  # 'п'
+        9: 2,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 1,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 1,  # 'ь'
+        30: 1,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    58: {  # 'Ц'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 1,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 1,  # 'а'
+        21: 0,  # 'б'
+        10: 1,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 0,  # 'о'
+        15: 0,  # 'п'
+        9: 0,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 1,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    50: {  # 'Ч'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 0,  # 'О'
+        35: 1,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 1,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 1,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 1,  # 'о'
+        15: 0,  # 'п'
+        9: 1,  # 'р'
+        7: 0,  # 'с'
+        6: 3,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 1,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    57: {  # 'Ш'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 1,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 0,  # 'б'
+        10: 1,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 1,  # 'и'
+        23: 0,  # 'й'
+        11: 1,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 1,  # 'н'
+        1: 2,  # 'о'
+        15: 2,  # 'п'
+        9: 1,  # 'р'
+        7: 0,  # 'с'
+        6: 2,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 1,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    63: {  # 'Щ'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 1,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 1,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 1,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 1,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 1,  # 'о'
+        15: 0,  # 'п'
+        9: 0,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 1,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    62: {  # 'Ы'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 1,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 0,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 1,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 1,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 0,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 0,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 0,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 0,  # 'о'
+        15: 0,  # 'п'
+        9: 0,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 0,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    61: {  # 'Ь'
+        37: 0,  # 'А'
+        44: 1,  # 'Б'
+        33: 1,  # 'В'
+        46: 0,  # 'Г'
+        41: 1,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 0,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 1,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 1,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 1,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 1,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 1,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 0,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 0,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 0,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 0,  # 'о'
+        15: 0,  # 'п'
+        9: 0,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 0,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    47: {  # 'Э'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 0,  # 'Г'
+        41: 1,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 1,  # 'Й'
+        36: 1,  # 'К'
+        49: 1,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 0,  # 'О'
+        35: 1,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 1,  # 'а'
+        21: 1,  # 'б'
+        10: 2,  # 'в'
+        19: 1,  # 'г'
+        13: 2,  # 'д'
+        2: 0,  # 'е'
+        24: 1,  # 'ж'
+        20: 0,  # 'з'
+        4: 0,  # 'и'
+        23: 2,  # 'й'
+        11: 2,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 2,  # 'н'
+        1: 0,  # 'о'
+        15: 1,  # 'п'
+        9: 2,  # 'р'
+        7: 1,  # 'с'
+        6: 3,  # 'т'
+        14: 1,  # 'у'
+        39: 1,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    59: {  # 'Ю'
+        37: 1,  # 'А'
+        44: 1,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 1,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 1,  # 'Р'
+        32: 0,  # 'С'
+        40: 1,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 1,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 0,  # 'а'
+        21: 1,  # 'б'
+        10: 0,  # 'в'
+        19: 1,  # 'г'
+        13: 1,  # 'д'
+        2: 0,  # 'е'
+        24: 1,  # 'ж'
+        20: 0,  # 'з'
+        4: 0,  # 'и'
+        23: 0,  # 'й'
+        11: 1,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 2,  # 'н'
+        1: 0,  # 'о'
+        15: 1,  # 'п'
+        9: 1,  # 'р'
+        7: 1,  # 'с'
+        6: 0,  # 'т'
+        14: 0,  # 'у'
+        39: 0,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    43: {  # 'Я'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 1,  # 'В'
+        46: 1,  # 'Г'
+        41: 0,  # 'Д'
+        48: 1,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 1,  # 'С'
+        40: 1,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 1,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 1,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 1,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 1,  # 'Ю'
+        43: 1,  # 'Я'
+        3: 0,  # 'а'
+        21: 1,  # 'б'
+        10: 1,  # 'в'
+        19: 1,  # 'г'
+        13: 1,  # 'д'
+        2: 0,  # 'е'
+        24: 0,  # 'ж'
+        20: 1,  # 'з'
+        4: 0,  # 'и'
+        23: 1,  # 'й'
+        11: 1,  # 'к'
+        8: 1,  # 'л'
+        12: 1,  # 'м'
+        5: 2,  # 'н'
+        1: 0,  # 'о'
+        15: 1,  # 'п'
+        9: 1,  # 'р'
+        7: 1,  # 'с'
+        6: 0,  # 'т'
+        14: 0,  # 'у'
+        39: 0,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 1,  # 'ш'
+        29: 1,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    3: {  # 'а'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 1,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 3,  # 'б'
+        10: 3,  # 'в'
+        19: 3,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 3,  # 'ж'
+        20: 3,  # 'з'
+        4: 3,  # 'и'
+        23: 3,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 2,  # 'о'
+        15: 3,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 3,  # 'у'
+        39: 2,  # 'ф'
+        26: 3,  # 'х'
+        28: 3,  # 'ц'
+        22: 3,  # 'ч'
+        25: 3,  # 'ш'
+        29: 3,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 2,  # 'э'
+        27: 3,  # 'ю'
+        16: 3,  # 'я'
+    },
+    21: {  # 'б'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 1,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 2,  # 'в'
+        19: 1,  # 'г'
+        13: 2,  # 'д'
+        2: 3,  # 'е'
+        24: 2,  # 'ж'
+        20: 1,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 2,  # 'к'
+        8: 3,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 1,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 2,  # 'т'
+        14: 3,  # 'у'
+        39: 0,  # 'ф'
+        26: 2,  # 'х'
+        28: 1,  # 'ц'
+        22: 1,  # 'ч'
+        25: 2,  # 'ш'
+        29: 3,  # 'щ'
+        54: 2,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 2,  # 'ь'
+        30: 1,  # 'э'
+        27: 2,  # 'ю'
+        16: 3,  # 'я'
+    },
+    10: {  # 'в'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 2,  # 'в'
+        19: 2,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 1,  # 'ж'
+        20: 3,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 3,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 3,  # 'у'
+        39: 1,  # 'ф'
+        26: 2,  # 'х'
+        28: 2,  # 'ц'
+        22: 2,  # 'ч'
+        25: 3,  # 'ш'
+        29: 2,  # 'щ'
+        54: 2,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 3,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 3,  # 'я'
+    },
+    19: {  # 'г'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 1,  # 'б'
+        10: 2,  # 'в'
+        19: 1,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 1,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 2,  # 'к'
+        8: 3,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 3,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 3,  # 'у'
+        39: 1,  # 'ф'
+        26: 1,  # 'х'
+        28: 1,  # 'ц'
+        22: 2,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 1,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    13: {  # 'д'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 3,  # 'в'
+        19: 2,  # 'г'
+        13: 2,  # 'д'
+        2: 3,  # 'е'
+        24: 2,  # 'ж'
+        20: 2,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 2,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 3,  # 'у'
+        39: 1,  # 'ф'
+        26: 2,  # 'х'
+        28: 3,  # 'ц'
+        22: 2,  # 'ч'
+        25: 2,  # 'ш'
+        29: 1,  # 'щ'
+        54: 2,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 3,  # 'ь'
+        30: 1,  # 'э'
+        27: 2,  # 'ю'
+        16: 3,  # 'я'
+    },
+    2: {  # 'е'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 3,  # 'б'
+        10: 3,  # 'в'
+        19: 3,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 3,  # 'ж'
+        20: 3,  # 'з'
+        4: 2,  # 'и'
+        23: 3,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 3,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 2,  # 'у'
+        39: 2,  # 'ф'
+        26: 3,  # 'х'
+        28: 3,  # 'ц'
+        22: 3,  # 'ч'
+        25: 3,  # 'ш'
+        29: 3,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 1,  # 'э'
+        27: 2,  # 'ю'
+        16: 3,  # 'я'
+    },
+    24: {  # 'ж'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 1,  # 'в'
+        19: 2,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 2,  # 'ж'
+        20: 1,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 2,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 3,  # 'н'
+        1: 2,  # 'о'
+        15: 1,  # 'п'
+        9: 2,  # 'р'
+        7: 2,  # 'с'
+        6: 1,  # 'т'
+        14: 3,  # 'у'
+        39: 1,  # 'ф'
+        26: 0,  # 'х'
+        28: 1,  # 'ц'
+        22: 2,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 2,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    20: {  # 'з'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 3,  # 'б'
+        10: 3,  # 'в'
+        19: 3,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 2,  # 'ж'
+        20: 2,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 3,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 3,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 1,  # 'ц'
+        22: 2,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 2,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 2,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 3,  # 'я'
+    },
+    4: {  # 'и'
+        37: 1,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 1,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 3,  # 'б'
+        10: 3,  # 'в'
+        19: 3,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 3,  # 'ж'
+        20: 3,  # 'з'
+        4: 3,  # 'и'
+        23: 3,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 3,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 2,  # 'у'
+        39: 2,  # 'ф'
+        26: 3,  # 'х'
+        28: 3,  # 'ц'
+        22: 3,  # 'ч'
+        25: 3,  # 'ш'
+        29: 3,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 2,  # 'э'
+        27: 3,  # 'ю'
+        16: 3,  # 'я'
+    },
+    23: {  # 'й'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 1,  # 'а'
+        21: 1,  # 'б'
+        10: 1,  # 'в'
+        19: 2,  # 'г'
+        13: 3,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 2,  # 'з'
+        4: 1,  # 'и'
+        23: 0,  # 'й'
+        11: 2,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 2,  # 'о'
+        15: 1,  # 'п'
+        9: 2,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 1,  # 'у'
+        39: 2,  # 'ф'
+        26: 1,  # 'х'
+        28: 2,  # 'ц'
+        22: 3,  # 'ч'
+        25: 2,  # 'ш'
+        29: 1,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 2,  # 'я'
+    },
+    11: {  # 'к'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 1,  # 'б'
+        10: 3,  # 'в'
+        19: 1,  # 'г'
+        13: 1,  # 'д'
+        2: 3,  # 'е'
+        24: 2,  # 'ж'
+        20: 2,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 2,  # 'к'
+        8: 3,  # 'л'
+        12: 1,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 3,  # 'у'
+        39: 1,  # 'ф'
+        26: 2,  # 'х'
+        28: 2,  # 'ц'
+        22: 1,  # 'ч'
+        25: 2,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 1,  # 'ы'
+        17: 1,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    8: {  # 'л'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 2,  # 'в'
+        19: 3,  # 'г'
+        13: 2,  # 'д'
+        2: 3,  # 'е'
+        24: 3,  # 'ж'
+        20: 2,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 2,  # 'п'
+        9: 1,  # 'р'
+        7: 3,  # 'с'
+        6: 2,  # 'т'
+        14: 3,  # 'у'
+        39: 2,  # 'ф'
+        26: 2,  # 'х'
+        28: 1,  # 'ц'
+        22: 3,  # 'ч'
+        25: 2,  # 'ш'
+        29: 1,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 3,  # 'ь'
+        30: 1,  # 'э'
+        27: 3,  # 'ю'
+        16: 3,  # 'я'
+    },
+    12: {  # 'м'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 2,  # 'в'
+        19: 2,  # 'г'
+        13: 1,  # 'д'
+        2: 3,  # 'е'
+        24: 1,  # 'ж'
+        20: 1,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 2,  # 'к'
+        8: 3,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 3,  # 'с'
+        6: 2,  # 'т'
+        14: 3,  # 'у'
+        39: 2,  # 'ф'
+        26: 2,  # 'х'
+        28: 2,  # 'ц'
+        22: 2,  # 'ч'
+        25: 1,  # 'ш'
+        29: 1,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 2,  # 'ь'
+        30: 2,  # 'э'
+        27: 1,  # 'ю'
+        16: 3,  # 'я'
+    },
+    5: {  # 'н'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 2,  # 'в'
+        19: 3,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 2,  # 'ж'
+        20: 2,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 1,  # 'п'
+        9: 2,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 3,  # 'у'
+        39: 2,  # 'ф'
+        26: 2,  # 'х'
+        28: 3,  # 'ц'
+        22: 3,  # 'ч'
+        25: 2,  # 'ш'
+        29: 2,  # 'щ'
+        54: 1,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 3,  # 'ь'
+        30: 1,  # 'э'
+        27: 3,  # 'ю'
+        16: 3,  # 'я'
+    },
+    1: {  # 'о'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 3,  # 'б'
+        10: 3,  # 'в'
+        19: 3,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 3,  # 'ж'
+        20: 3,  # 'з'
+        4: 3,  # 'и'
+        23: 3,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 3,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 2,  # 'у'
+        39: 2,  # 'ф'
+        26: 3,  # 'х'
+        28: 2,  # 'ц'
+        22: 3,  # 'ч'
+        25: 3,  # 'ш'
+        29: 3,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 2,  # 'э'
+        27: 3,  # 'ю'
+        16: 3,  # 'я'
+    },
+    15: {  # 'п'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 1,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 2,  # 'к'
+        8: 3,  # 'л'
+        12: 1,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 2,  # 'п'
+        9: 3,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 3,  # 'у'
+        39: 1,  # 'ф'
+        26: 0,  # 'х'
+        28: 2,  # 'ц'
+        22: 2,  # 'ч'
+        25: 1,  # 'ш'
+        29: 1,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 2,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 3,  # 'я'
+    },
+    9: {  # 'р'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 3,  # 'в'
+        19: 3,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 3,  # 'ж'
+        20: 2,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 2,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 3,  # 'у'
+        39: 2,  # 'ф'
+        26: 3,  # 'х'
+        28: 2,  # 'ц'
+        22: 2,  # 'ч'
+        25: 3,  # 'ш'
+        29: 2,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 3,  # 'ь'
+        30: 2,  # 'э'
+        27: 2,  # 'ю'
+        16: 3,  # 'я'
+    },
+    7: {  # 'с'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 1,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 3,  # 'в'
+        19: 2,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 2,  # 'ж'
+        20: 2,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 3,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 3,  # 'у'
+        39: 2,  # 'ф'
+        26: 3,  # 'х'
+        28: 2,  # 'ц'
+        22: 3,  # 'ч'
+        25: 2,  # 'ш'
+        29: 1,  # 'щ'
+        54: 2,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 3,  # 'ь'
+        30: 2,  # 'э'
+        27: 3,  # 'ю'
+        16: 3,  # 'я'
+    },
+    6: {  # 'т'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 2,  # 'б'
+        10: 3,  # 'в'
+        19: 2,  # 'г'
+        13: 2,  # 'д'
+        2: 3,  # 'е'
+        24: 1,  # 'ж'
+        20: 1,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 2,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 2,  # 'т'
+        14: 3,  # 'у'
+        39: 2,  # 'ф'
+        26: 2,  # 'х'
+        28: 2,  # 'ц'
+        22: 2,  # 'ч'
+        25: 2,  # 'ш'
+        29: 2,  # 'щ'
+        54: 2,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 3,  # 'ь'
+        30: 2,  # 'э'
+        27: 2,  # 'ю'
+        16: 3,  # 'я'
+    },
+    14: {  # 'у'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 3,  # 'б'
+        10: 3,  # 'в'
+        19: 3,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 3,  # 'ж'
+        20: 3,  # 'з'
+        4: 2,  # 'и'
+        23: 2,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 2,  # 'о'
+        15: 3,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 1,  # 'у'
+        39: 2,  # 'ф'
+        26: 3,  # 'х'
+        28: 2,  # 'ц'
+        22: 3,  # 'ч'
+        25: 3,  # 'ш'
+        29: 3,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 2,  # 'э'
+        27: 3,  # 'ю'
+        16: 2,  # 'я'
+    },
+    39: {  # 'ф'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 1,  # 'б'
+        10: 0,  # 'в'
+        19: 1,  # 'г'
+        13: 0,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 1,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 1,  # 'н'
+        1: 3,  # 'о'
+        15: 1,  # 'п'
+        9: 2,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 2,  # 'у'
+        39: 2,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 1,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 2,  # 'ы'
+        17: 1,  # 'ь'
+        30: 2,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    26: {  # 'х'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 0,  # 'б'
+        10: 3,  # 'в'
+        19: 1,  # 'г'
+        13: 1,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 1,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 1,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 1,  # 'п'
+        9: 3,  # 'р'
+        7: 2,  # 'с'
+        6: 2,  # 'т'
+        14: 2,  # 'у'
+        39: 1,  # 'ф'
+        26: 1,  # 'х'
+        28: 1,  # 'ц'
+        22: 1,  # 'ч'
+        25: 2,  # 'ш'
+        29: 0,  # 'щ'
+        54: 1,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 1,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    28: {  # 'ц'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 1,  # 'б'
+        10: 2,  # 'в'
+        19: 1,  # 'г'
+        13: 1,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 1,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 2,  # 'к'
+        8: 1,  # 'л'
+        12: 1,  # 'м'
+        5: 1,  # 'н'
+        1: 3,  # 'о'
+        15: 0,  # 'п'
+        9: 1,  # 'р'
+        7: 0,  # 'с'
+        6: 1,  # 'т'
+        14: 3,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 1,  # 'ц'
+        22: 0,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 3,  # 'ы'
+        17: 1,  # 'ь'
+        30: 0,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    22: {  # 'ч'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 1,  # 'б'
+        10: 1,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 3,  # 'е'
+        24: 1,  # 'ж'
+        20: 0,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 2,  # 'л'
+        12: 1,  # 'м'
+        5: 3,  # 'н'
+        1: 2,  # 'о'
+        15: 0,  # 'п'
+        9: 2,  # 'р'
+        7: 1,  # 'с'
+        6: 3,  # 'т'
+        14: 3,  # 'у'
+        39: 1,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 1,  # 'ч'
+        25: 2,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 3,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    25: {  # 'ш'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 1,  # 'б'
+        10: 2,  # 'в'
+        19: 1,  # 'г'
+        13: 0,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 2,  # 'м'
+        5: 3,  # 'н'
+        1: 3,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 1,  # 'с'
+        6: 2,  # 'т'
+        14: 3,  # 'у'
+        39: 2,  # 'ф'
+        26: 1,  # 'х'
+        28: 1,  # 'ц'
+        22: 1,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 3,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 0,  # 'я'
+    },
+    29: {  # 'щ'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 3,  # 'а'
+        21: 0,  # 'б'
+        10: 1,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 3,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 3,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 1,  # 'м'
+        5: 2,  # 'н'
+        1: 1,  # 'о'
+        15: 0,  # 'п'
+        9: 2,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 2,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 2,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 0,  # 'я'
+    },
+    54: {  # 'ъ'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 0,  # 'а'
+        21: 0,  # 'б'
+        10: 0,  # 'в'
+        19: 0,  # 'г'
+        13: 0,  # 'д'
+        2: 2,  # 'е'
+        24: 0,  # 'ж'
+        20: 0,  # 'з'
+        4: 0,  # 'и'
+        23: 0,  # 'й'
+        11: 0,  # 'к'
+        8: 0,  # 'л'
+        12: 0,  # 'м'
+        5: 0,  # 'н'
+        1: 0,  # 'о'
+        15: 0,  # 'п'
+        9: 0,  # 'р'
+        7: 0,  # 'с'
+        6: 0,  # 'т'
+        14: 0,  # 'у'
+        39: 0,  # 'ф'
+        26: 0,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 0,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 1,  # 'ю'
+        16: 2,  # 'я'
+    },
+    18: {  # 'ы'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 0,  # 'а'
+        21: 3,  # 'б'
+        10: 3,  # 'в'
+        19: 2,  # 'г'
+        13: 2,  # 'д'
+        2: 3,  # 'е'
+        24: 2,  # 'ж'
+        20: 2,  # 'з'
+        4: 2,  # 'и'
+        23: 3,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 1,  # 'о'
+        15: 3,  # 'п'
+        9: 3,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 1,  # 'у'
+        39: 0,  # 'ф'
+        26: 3,  # 'х'
+        28: 2,  # 'ц'
+        22: 3,  # 'ч'
+        25: 3,  # 'ш'
+        29: 2,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 0,  # 'ю'
+        16: 2,  # 'я'
+    },
+    17: {  # 'ь'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 0,  # 'а'
+        21: 2,  # 'б'
+        10: 2,  # 'в'
+        19: 2,  # 'г'
+        13: 2,  # 'д'
+        2: 3,  # 'е'
+        24: 1,  # 'ж'
+        20: 3,  # 'з'
+        4: 2,  # 'и'
+        23: 0,  # 'й'
+        11: 3,  # 'к'
+        8: 0,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 2,  # 'о'
+        15: 2,  # 'п'
+        9: 1,  # 'р'
+        7: 3,  # 'с'
+        6: 2,  # 'т'
+        14: 0,  # 'у'
+        39: 2,  # 'ф'
+        26: 1,  # 'х'
+        28: 2,  # 'ц'
+        22: 2,  # 'ч'
+        25: 3,  # 'ш'
+        29: 2,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 1,  # 'э'
+        27: 3,  # 'ю'
+        16: 3,  # 'я'
+    },
+    30: {  # 'э'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 1,  # 'М'
+        31: 1,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 1,  # 'Р'
+        32: 1,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 1,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 0,  # 'а'
+        21: 1,  # 'б'
+        10: 1,  # 'в'
+        19: 1,  # 'г'
+        13: 2,  # 'д'
+        2: 1,  # 'е'
+        24: 0,  # 'ж'
+        20: 1,  # 'з'
+        4: 0,  # 'и'
+        23: 2,  # 'й'
+        11: 2,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 2,  # 'н'
+        1: 0,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 2,  # 'с'
+        6: 3,  # 'т'
+        14: 1,  # 'у'
+        39: 2,  # 'ф'
+        26: 1,  # 'х'
+        28: 0,  # 'ц'
+        22: 0,  # 'ч'
+        25: 1,  # 'ш'
+        29: 0,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 1,  # 'э'
+        27: 1,  # 'ю'
+        16: 1,  # 'я'
+    },
+    27: {  # 'ю'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 2,  # 'а'
+        21: 3,  # 'б'
+        10: 1,  # 'в'
+        19: 2,  # 'г'
+        13: 3,  # 'д'
+        2: 1,  # 'е'
+        24: 2,  # 'ж'
+        20: 2,  # 'з'
+        4: 1,  # 'и'
+        23: 1,  # 'й'
+        11: 2,  # 'к'
+        8: 2,  # 'л'
+        12: 2,  # 'м'
+        5: 2,  # 'н'
+        1: 1,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 0,  # 'у'
+        39: 1,  # 'ф'
+        26: 2,  # 'х'
+        28: 2,  # 'ц'
+        22: 2,  # 'ч'
+        25: 2,  # 'ш'
+        29: 3,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 1,  # 'э'
+        27: 2,  # 'ю'
+        16: 1,  # 'я'
+    },
+    16: {  # 'я'
+        37: 0,  # 'А'
+        44: 0,  # 'Б'
+        33: 0,  # 'В'
+        46: 0,  # 'Г'
+        41: 0,  # 'Д'
+        48: 0,  # 'Е'
+        56: 0,  # 'Ж'
+        51: 0,  # 'З'
+        42: 0,  # 'И'
+        60: 0,  # 'Й'
+        36: 0,  # 'К'
+        49: 0,  # 'Л'
+        38: 0,  # 'М'
+        31: 0,  # 'Н'
+        34: 0,  # 'О'
+        35: 0,  # 'П'
+        45: 0,  # 'Р'
+        32: 0,  # 'С'
+        40: 0,  # 'Т'
+        52: 0,  # 'У'
+        53: 0,  # 'Ф'
+        55: 0,  # 'Х'
+        58: 0,  # 'Ц'
+        50: 0,  # 'Ч'
+        57: 0,  # 'Ш'
+        63: 0,  # 'Щ'
+        62: 0,  # 'Ы'
+        61: 0,  # 'Ь'
+        47: 0,  # 'Э'
+        59: 0,  # 'Ю'
+        43: 0,  # 'Я'
+        3: 0,  # 'а'
+        21: 2,  # 'б'
+        10: 3,  # 'в'
+        19: 2,  # 'г'
+        13: 3,  # 'д'
+        2: 3,  # 'е'
+        24: 3,  # 'ж'
+        20: 3,  # 'з'
+        4: 2,  # 'и'
+        23: 2,  # 'й'
+        11: 3,  # 'к'
+        8: 3,  # 'л'
+        12: 3,  # 'м'
+        5: 3,  # 'н'
+        1: 0,  # 'о'
+        15: 2,  # 'п'
+        9: 2,  # 'р'
+        7: 3,  # 'с'
+        6: 3,  # 'т'
+        14: 1,  # 'у'
+        39: 1,  # 'ф'
+        26: 3,  # 'х'
+        28: 2,  # 'ц'
+        22: 2,  # 'ч'
+        25: 2,  # 'ш'
+        29: 3,  # 'щ'
+        54: 0,  # 'ъ'
+        18: 0,  # 'ы'
+        17: 0,  # 'ь'
+        30: 0,  # 'э'
+        27: 2,  # 'ю'
+        16: 2,  # 'я'
+    },
+}
+
+# 255: Undefined characters that did not exist in training text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+# 251: Control characters
+
+# Character Mapping Table(s):
+IBM866_RUSSIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 142,  # 'A'
+     66: 143,  # 'B'
+     67: 144,  # 'C'
+     68: 145,  # 'D'
+     69: 146,  # 'E'
+     70: 147,  # 'F'
+     71: 148,  # 'G'
+     72: 149,  # 'H'
+     73: 150,  # 'I'
+     74: 151,  # 'J'
+     75: 152,  # 'K'
+     76: 74,  # 'L'
+     77: 153,  # 'M'
+     78: 75,  # 'N'
+     79: 154,  # 'O'
+     80: 155,  # 'P'
+     81: 156,  # 'Q'
+     82: 157,  # 'R'
+     83: 158,  # 'S'
+     84: 159,  # 'T'
+     85: 160,  # 'U'
+     86: 161,  # 'V'
+     87: 162,  # 'W'
+     88: 163,  # 'X'
+     89: 164,  # 'Y'
+     90: 165,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 71,  # 'a'
+     98: 172,  # 'b'
+     99: 66,  # 'c'
+     100: 173,  # 'd'
+     101: 65,  # 'e'
+     102: 174,  # 'f'
+     103: 76,  # 'g'
+     104: 175,  # 'h'
+     105: 64,  # 'i'
+     106: 176,  # 'j'
+     107: 177,  # 'k'
+     108: 77,  # 'l'
+     109: 72,  # 'm'
+     110: 178,  # 'n'
+     111: 69,  # 'o'
+     112: 67,  # 'p'
+     113: 179,  # 'q'
+     114: 78,  # 'r'
+     115: 73,  # 's'
+     116: 180,  # 't'
+     117: 181,  # 'u'
+     118: 79,  # 'v'
+     119: 182,  # 'w'
+     120: 183,  # 'x'
+     121: 184,  # 'y'
+     122: 185,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 37,  # 'А'
+     129: 44,  # 'Б'
+     130: 33,  # 'В'
+     131: 46,  # 'Г'
+     132: 41,  # 'Д'
+     133: 48,  # 'Е'
+     134: 56,  # 'Ж'
+     135: 51,  # 'З'
+     136: 42,  # 'И'
+     137: 60,  # 'Й'
+     138: 36,  # 'К'
+     139: 49,  # 'Л'
+     140: 38,  # 'М'
+     141: 31,  # 'Н'
+     142: 34,  # 'О'
+     143: 35,  # 'П'
+     144: 45,  # 'Р'
+     145: 32,  # 'С'
+     146: 40,  # 'Т'
+     147: 52,  # 'У'
+     148: 53,  # 'Ф'
+     149: 55,  # 'Х'
+     150: 58,  # 'Ц'
+     151: 50,  # 'Ч'
+     152: 57,  # 'Ш'
+     153: 63,  # 'Щ'
+     154: 70,  # 'Ъ'
+     155: 62,  # 'Ы'
+     156: 61,  # 'Ь'
+     157: 47,  # 'Э'
+     158: 59,  # 'Ю'
+     159: 43,  # 'Я'
+     160: 3,  # 'а'
+     161: 21,  # 'б'
+     162: 10,  # 'в'
+     163: 19,  # 'г'
+     164: 13,  # 'д'
+     165: 2,  # 'е'
+     166: 24,  # 'ж'
+     167: 20,  # 'з'
+     168: 4,  # 'и'
+     169: 23,  # 'й'
+     170: 11,  # 'к'
+     171: 8,  # 'л'
+     172: 12,  # 'м'
+     173: 5,  # 'н'
+     174: 1,  # 'о'
+     175: 15,  # 'п'
+     176: 191,  # '░'
+     177: 192,  # '▒'
+     178: 193,  # '▓'
+     179: 194,  # '│'
+     180: 195,  # '┤'
+     181: 196,  # '╡'
+     182: 197,  # '╢'
+     183: 198,  # '╖'
+     184: 199,  # '╕'
+     185: 200,  # '╣'
+     186: 201,  # '║'
+     187: 202,  # '╗'
+     188: 203,  # '╝'
+     189: 204,  # '╜'
+     190: 205,  # '╛'
+     191: 206,  # '┐'
+     192: 207,  # '└'
+     193: 208,  # '┴'
+     194: 209,  # '┬'
+     195: 210,  # '├'
+     196: 211,  # '─'
+     197: 212,  # '┼'
+     198: 213,  # '╞'
+     199: 214,  # '╟'
+     200: 215,  # '╚'
+     201: 216,  # '╔'
+     202: 217,  # '╩'
+     203: 218,  # '╦'
+     204: 219,  # '╠'
+     205: 220,  # '═'
+     206: 221,  # '╬'
+     207: 222,  # '╧'
+     208: 223,  # '╨'
+     209: 224,  # '╤'
+     210: 225,  # '╥'
+     211: 226,  # '╙'
+     212: 227,  # '╘'
+     213: 228,  # '╒'
+     214: 229,  # '╓'
+     215: 230,  # '╫'
+     216: 231,  # '╪'
+     217: 232,  # '┘'
+     218: 233,  # '┌'
+     219: 234,  # '█'
+     220: 235,  # '▄'
+     221: 236,  # '▌'
+     222: 237,  # '▐'
+     223: 238,  # '▀'
+     224: 9,  # 'р'
+     225: 7,  # 'с'
+     226: 6,  # 'т'
+     227: 14,  # 'у'
+     228: 39,  # 'ф'
+     229: 26,  # 'х'
+     230: 28,  # 'ц'
+     231: 22,  # 'ч'
+     232: 25,  # 'ш'
+     233: 29,  # 'щ'
+     234: 54,  # 'ъ'
+     235: 18,  # 'ы'
+     236: 17,  # 'ь'
+     237: 30,  # 'э'
+     238: 27,  # 'ю'
+     239: 16,  # 'я'
+     240: 239,  # 'Ё'
+     241: 68,  # 'ё'
+     242: 240,  # 'Є'
+     243: 241,  # 'є'
+     244: 242,  # 'Ї'
+     245: 243,  # 'ї'
+     246: 244,  # 'Ў'
+     247: 245,  # 'ў'
+     248: 246,  # '°'
+     249: 247,  # '∙'
+     250: 248,  # '·'
+     251: 249,  # '√'
+     252: 250,  # '№'
+     253: 251,  # '¤'
+     254: 252,  # '■'
+     255: 255,  # '\xa0'
+}
+
+IBM866_RUSSIAN_MODEL = SingleByteCharSetModel(charset_name='IBM866',
+                                              language='Russian',
+                                              char_to_order_map=IBM866_RUSSIAN_CHAR_TO_ORDER,
+                                              language_model=RUSSIAN_LANG_MODEL,
+                                              typical_positive_ratio=0.976601,
+                                              keep_ascii_letters=False,
+                                              alphabet='ЁАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюяё')
+
+WINDOWS_1251_RUSSIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 142,  # 'A'
+     66: 143,  # 'B'
+     67: 144,  # 'C'
+     68: 145,  # 'D'
+     69: 146,  # 'E'
+     70: 147,  # 'F'
+     71: 148,  # 'G'
+     72: 149,  # 'H'
+     73: 150,  # 'I'
+     74: 151,  # 'J'
+     75: 152,  # 'K'
+     76: 74,  # 'L'
+     77: 153,  # 'M'
+     78: 75,  # 'N'
+     79: 154,  # 'O'
+     80: 155,  # 'P'
+     81: 156,  # 'Q'
+     82: 157,  # 'R'
+     83: 158,  # 'S'
+     84: 159,  # 'T'
+     85: 160,  # 'U'
+     86: 161,  # 'V'
+     87: 162,  # 'W'
+     88: 163,  # 'X'
+     89: 164,  # 'Y'
+     90: 165,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 71,  # 'a'
+     98: 172,  # 'b'
+     99: 66,  # 'c'
+     100: 173,  # 'd'
+     101: 65,  # 'e'
+     102: 174,  # 'f'
+     103: 76,  # 'g'
+     104: 175,  # 'h'
+     105: 64,  # 'i'
+     106: 176,  # 'j'
+     107: 177,  # 'k'
+     108: 77,  # 'l'
+     109: 72,  # 'm'
+     110: 178,  # 'n'
+     111: 69,  # 'o'
+     112: 67,  # 'p'
+     113: 179,  # 'q'
+     114: 78,  # 'r'
+     115: 73,  # 's'
+     116: 180,  # 't'
+     117: 181,  # 'u'
+     118: 79,  # 'v'
+     119: 182,  # 'w'
+     120: 183,  # 'x'
+     121: 184,  # 'y'
+     122: 185,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 191,  # 'Ђ'
+     129: 192,  # 'Ѓ'
+     130: 193,  # '‚'
+     131: 194,  # 'ѓ'
+     132: 195,  # '„'
+     133: 196,  # '…'
+     134: 197,  # '†'
+     135: 198,  # '‡'
+     136: 199,  # '€'
+     137: 200,  # '‰'
+     138: 201,  # 'Љ'
+     139: 202,  # '‹'
+     140: 203,  # 'Њ'
+     141: 204,  # 'Ќ'
+     142: 205,  # 'Ћ'
+     143: 206,  # 'Џ'
+     144: 207,  # 'ђ'
+     145: 208,  # '‘'
+     146: 209,  # '’'
+     147: 210,  # '“'
+     148: 211,  # '”'
+     149: 212,  # '•'
+     150: 213,  # '–'
+     151: 214,  # '—'
+     152: 215,  # None
+     153: 216,  # '™'
+     154: 217,  # 'љ'
+     155: 218,  # '›'
+     156: 219,  # 'њ'
+     157: 220,  # 'ќ'
+     158: 221,  # 'ћ'
+     159: 222,  # 'џ'
+     160: 223,  # '\xa0'
+     161: 224,  # 'Ў'
+     162: 225,  # 'ў'
+     163: 226,  # 'Ј'
+     164: 227,  # '¤'
+     165: 228,  # 'Ґ'
+     166: 229,  # '¦'
+     167: 230,  # '§'
+     168: 231,  # 'Ё'
+     169: 232,  # '©'
+     170: 233,  # 'Є'
+     171: 234,  # '«'
+     172: 235,  # '¬'
+     173: 236,  # '\xad'
+     174: 237,  # '®'
+     175: 238,  # 'Ї'
+     176: 239,  # '°'
+     177: 240,  # '±'
+     178: 241,  # 'І'
+     179: 242,  # 'і'
+     180: 243,  # 'ґ'
+     181: 244,  # 'µ'
+     182: 245,  # '¶'
+     183: 246,  # '·'
+     184: 68,  # 'ё'
+     185: 247,  # '№'
+     186: 248,  # 'є'
+     187: 249,  # '»'
+     188: 250,  # 'ј'
+     189: 251,  # 'Ѕ'
+     190: 252,  # 'ѕ'
+     191: 253,  # 'ї'
+     192: 37,  # 'А'
+     193: 44,  # 'Б'
+     194: 33,  # 'В'
+     195: 46,  # 'Г'
+     196: 41,  # 'Д'
+     197: 48,  # 'Е'
+     198: 56,  # 'Ж'
+     199: 51,  # 'З'
+     200: 42,  # 'И'
+     201: 60,  # 'Й'
+     202: 36,  # 'К'
+     203: 49,  # 'Л'
+     204: 38,  # 'М'
+     205: 31,  # 'Н'
+     206: 34,  # 'О'
+     207: 35,  # 'П'
+     208: 45,  # 'Р'
+     209: 32,  # 'С'
+     210: 40,  # 'Т'
+     211: 52,  # 'У'
+     212: 53,  # 'Ф'
+     213: 55,  # 'Х'
+     214: 58,  # 'Ц'
+     215: 50,  # 'Ч'
+     216: 57,  # 'Ш'
+     217: 63,  # 'Щ'
+     218: 70,  # 'Ъ'
+     219: 62,  # 'Ы'
+     220: 61,  # 'Ь'
+     221: 47,  # 'Э'
+     222: 59,  # 'Ю'
+     223: 43,  # 'Я'
+     224: 3,  # 'а'
+     225: 21,  # 'б'
+     226: 10,  # 'в'
+     227: 19,  # 'г'
+     228: 13,  # 'д'
+     229: 2,  # 'е'
+     230: 24,  # 'ж'
+     231: 20,  # 'з'
+     232: 4,  # 'и'
+     233: 23,  # 'й'
+     234: 11,  # 'к'
+     235: 8,  # 'л'
+     236: 12,  # 'м'
+     237: 5,  # 'н'
+     238: 1,  # 'о'
+     239: 15,  # 'п'
+     240: 9,  # 'р'
+     241: 7,  # 'с'
+     242: 6,  # 'т'
+     243: 14,  # 'у'
+     244: 39,  # 'ф'
+     245: 26,  # 'х'
+     246: 28,  # 'ц'
+     247: 22,  # 'ч'
+     248: 25,  # 'ш'
+     249: 29,  # 'щ'
+     250: 54,  # 'ъ'
+     251: 18,  # 'ы'
+     252: 17,  # 'ь'
+     253: 30,  # 'э'
+     254: 27,  # 'ю'
+     255: 16,  # 'я'
+}
+
+WINDOWS_1251_RUSSIAN_MODEL = SingleByteCharSetModel(charset_name='windows-1251',
+                                                    language='Russian',
+                                                    char_to_order_map=WINDOWS_1251_RUSSIAN_CHAR_TO_ORDER,
+                                                    language_model=RUSSIAN_LANG_MODEL,
+                                                    typical_positive_ratio=0.976601,
+                                                    keep_ascii_letters=False,
+                                                    alphabet='ЁАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюяё')
+
+IBM855_RUSSIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 142,  # 'A'
+     66: 143,  # 'B'
+     67: 144,  # 'C'
+     68: 145,  # 'D'
+     69: 146,  # 'E'
+     70: 147,  # 'F'
+     71: 148,  # 'G'
+     72: 149,  # 'H'
+     73: 150,  # 'I'
+     74: 151,  # 'J'
+     75: 152,  # 'K'
+     76: 74,  # 'L'
+     77: 153,  # 'M'
+     78: 75,  # 'N'
+     79: 154,  # 'O'
+     80: 155,  # 'P'
+     81: 156,  # 'Q'
+     82: 157,  # 'R'
+     83: 158,  # 'S'
+     84: 159,  # 'T'
+     85: 160,  # 'U'
+     86: 161,  # 'V'
+     87: 162,  # 'W'
+     88: 163,  # 'X'
+     89: 164,  # 'Y'
+     90: 165,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 71,  # 'a'
+     98: 172,  # 'b'
+     99: 66,  # 'c'
+     100: 173,  # 'd'
+     101: 65,  # 'e'
+     102: 174,  # 'f'
+     103: 76,  # 'g'
+     104: 175,  # 'h'
+     105: 64,  # 'i'
+     106: 176,  # 'j'
+     107: 177,  # 'k'
+     108: 77,  # 'l'
+     109: 72,  # 'm'
+     110: 178,  # 'n'
+     111: 69,  # 'o'
+     112: 67,  # 'p'
+     113: 179,  # 'q'
+     114: 78,  # 'r'
+     115: 73,  # 's'
+     116: 180,  # 't'
+     117: 181,  # 'u'
+     118: 79,  # 'v'
+     119: 182,  # 'w'
+     120: 183,  # 'x'
+     121: 184,  # 'y'
+     122: 185,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 191,  # 'ђ'
+     129: 192,  # 'Ђ'
+     130: 193,  # 'ѓ'
+     131: 194,  # 'Ѓ'
+     132: 68,  # 'ё'
+     133: 195,  # 'Ё'
+     134: 196,  # 'є'
+     135: 197,  # 'Є'
+     136: 198,  # 'ѕ'
+     137: 199,  # 'Ѕ'
+     138: 200,  # 'і'
+     139: 201,  # 'І'
+     140: 202,  # 'ї'
+     141: 203,  # 'Ї'
+     142: 204,  # 'ј'
+     143: 205,  # 'Ј'
+     144: 206,  # 'љ'
+     145: 207,  # 'Љ'
+     146: 208,  # 'њ'
+     147: 209,  # 'Њ'
+     148: 210,  # 'ћ'
+     149: 211,  # 'Ћ'
+     150: 212,  # 'ќ'
+     151: 213,  # 'Ќ'
+     152: 214,  # 'ў'
+     153: 215,  # 'Ў'
+     154: 216,  # 'џ'
+     155: 217,  # 'Џ'
+     156: 27,  # 'ю'
+     157: 59,  # 'Ю'
+     158: 54,  # 'ъ'
+     159: 70,  # 'Ъ'
+     160: 3,  # 'а'
+     161: 37,  # 'А'
+     162: 21,  # 'б'
+     163: 44,  # 'Б'
+     164: 28,  # 'ц'
+     165: 58,  # 'Ц'
+     166: 13,  # 'д'
+     167: 41,  # 'Д'
+     168: 2,  # 'е'
+     169: 48,  # 'Е'
+     170: 39,  # 'ф'
+     171: 53,  # 'Ф'
+     172: 19,  # 'г'
+     173: 46,  # 'Г'
+     174: 218,  # '«'
+     175: 219,  # '»'
+     176: 220,  # '░'
+     177: 221,  # '▒'
+     178: 222,  # '▓'
+     179: 223,  # '│'
+     180: 224,  # '┤'
+     181: 26,  # 'х'
+     182: 55,  # 'Х'
+     183: 4,  # 'и'
+     184: 42,  # 'И'
+     185: 225,  # '╣'
+     186: 226,  # '║'
+     187: 227,  # '╗'
+     188: 228,  # '╝'
+     189: 23,  # 'й'
+     190: 60,  # 'Й'
+     191: 229,  # '┐'
+     192: 230,  # '└'
+     193: 231,  # '┴'
+     194: 232,  # '┬'
+     195: 233,  # '├'
+     196: 234,  # '─'
+     197: 235,  # '┼'
+     198: 11,  # 'к'
+     199: 36,  # 'К'
+     200: 236,  # '╚'
+     201: 237,  # '╔'
+     202: 238,  # '╩'
+     203: 239,  # '╦'
+     204: 240,  # '╠'
+     205: 241,  # '═'
+     206: 242,  # '╬'
+     207: 243,  # '¤'
+     208: 8,  # 'л'
+     209: 49,  # 'Л'
+     210: 12,  # 'м'
+     211: 38,  # 'М'
+     212: 5,  # 'н'
+     213: 31,  # 'Н'
+     214: 1,  # 'о'
+     215: 34,  # 'О'
+     216: 15,  # 'п'
+     217: 244,  # '┘'
+     218: 245,  # '┌'
+     219: 246,  # '█'
+     220: 247,  # '▄'
+     221: 35,  # 'П'
+     222: 16,  # 'я'
+     223: 248,  # '▀'
+     224: 43,  # 'Я'
+     225: 9,  # 'р'
+     226: 45,  # 'Р'
+     227: 7,  # 'с'
+     228: 32,  # 'С'
+     229: 6,  # 'т'
+     230: 40,  # 'Т'
+     231: 14,  # 'у'
+     232: 52,  # 'У'
+     233: 24,  # 'ж'
+     234: 56,  # 'Ж'
+     235: 10,  # 'в'
+     236: 33,  # 'В'
+     237: 17,  # 'ь'
+     238: 61,  # 'Ь'
+     239: 249,  # '№'
+     240: 250,  # '\xad'
+     241: 18,  # 'ы'
+     242: 62,  # 'Ы'
+     243: 20,  # 'з'
+     244: 51,  # 'З'
+     245: 25,  # 'ш'
+     246: 57,  # 'Ш'
+     247: 30,  # 'э'
+     248: 47,  # 'Э'
+     249: 29,  # 'щ'
+     250: 63,  # 'Щ'
+     251: 22,  # 'ч'
+     252: 50,  # 'Ч'
+     253: 251,  # '§'
+     254: 252,  # '■'
+     255: 255,  # '\xa0'
+}
+
+IBM855_RUSSIAN_MODEL = SingleByteCharSetModel(charset_name='IBM855',
+                                              language='Russian',
+                                              char_to_order_map=IBM855_RUSSIAN_CHAR_TO_ORDER,
+                                              language_model=RUSSIAN_LANG_MODEL,
+                                              typical_positive_ratio=0.976601,
+                                              keep_ascii_letters=False,
+                                              alphabet='ЁАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюяё')
+
+KOI8_R_RUSSIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 142,  # 'A'
+     66: 143,  # 'B'
+     67: 144,  # 'C'
+     68: 145,  # 'D'
+     69: 146,  # 'E'
+     70: 147,  # 'F'
+     71: 148,  # 'G'
+     72: 149,  # 'H'
+     73: 150,  # 'I'
+     74: 151,  # 'J'
+     75: 152,  # 'K'
+     76: 74,  # 'L'
+     77: 153,  # 'M'
+     78: 75,  # 'N'
+     79: 154,  # 'O'
+     80: 155,  # 'P'
+     81: 156,  # 'Q'
+     82: 157,  # 'R'
+     83: 158,  # 'S'
+     84: 159,  # 'T'
+     85: 160,  # 'U'
+     86: 161,  # 'V'
+     87: 162,  # 'W'
+     88: 163,  # 'X'
+     89: 164,  # 'Y'
+     90: 165,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 71,  # 'a'
+     98: 172,  # 'b'
+     99: 66,  # 'c'
+     100: 173,  # 'd'
+     101: 65,  # 'e'
+     102: 174,  # 'f'
+     103: 76,  # 'g'
+     104: 175,  # 'h'
+     105: 64,  # 'i'
+     106: 176,  # 'j'
+     107: 177,  # 'k'
+     108: 77,  # 'l'
+     109: 72,  # 'm'
+     110: 178,  # 'n'
+     111: 69,  # 'o'
+     112: 67,  # 'p'
+     113: 179,  # 'q'
+     114: 78,  # 'r'
+     115: 73,  # 's'
+     116: 180,  # 't'
+     117: 181,  # 'u'
+     118: 79,  # 'v'
+     119: 182,  # 'w'
+     120: 183,  # 'x'
+     121: 184,  # 'y'
+     122: 185,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 191,  # '─'
+     129: 192,  # '│'
+     130: 193,  # '┌'
+     131: 194,  # '┐'
+     132: 195,  # '└'
+     133: 196,  # '┘'
+     134: 197,  # '├'
+     135: 198,  # '┤'
+     136: 199,  # '┬'
+     137: 200,  # '┴'
+     138: 201,  # '┼'
+     139: 202,  # '▀'
+     140: 203,  # '▄'
+     141: 204,  # '█'
+     142: 205,  # '▌'
+     143: 206,  # '▐'
+     144: 207,  # '░'
+     145: 208,  # '▒'
+     146: 209,  # '▓'
+     147: 210,  # '⌠'
+     148: 211,  # '■'
+     149: 212,  # '∙'
+     150: 213,  # '√'
+     151: 214,  # '≈'
+     152: 215,  # '≤'
+     153: 216,  # '≥'
+     154: 217,  # '\xa0'
+     155: 218,  # '⌡'
+     156: 219,  # '°'
+     157: 220,  # '²'
+     158: 221,  # '·'
+     159: 222,  # '÷'
+     160: 223,  # '═'
+     161: 224,  # '║'
+     162: 225,  # '╒'
+     163: 68,  # 'ё'
+     164: 226,  # '╓'
+     165: 227,  # '╔'
+     166: 228,  # '╕'
+     167: 229,  # '╖'
+     168: 230,  # '╗'
+     169: 231,  # '╘'
+     170: 232,  # '╙'
+     171: 233,  # '╚'
+     172: 234,  # '╛'
+     173: 235,  # '╜'
+     174: 236,  # '╝'
+     175: 237,  # '╞'
+     176: 238,  # '╟'
+     177: 239,  # '╠'
+     178: 240,  # '╡'
+     179: 241,  # 'Ё'
+     180: 242,  # '╢'
+     181: 243,  # '╣'
+     182: 244,  # '╤'
+     183: 245,  # '╥'
+     184: 246,  # '╦'
+     185: 247,  # '╧'
+     186: 248,  # '╨'
+     187: 249,  # '╩'
+     188: 250,  # '╪'
+     189: 251,  # '╫'
+     190: 252,  # '╬'
+     191: 253,  # '©'
+     192: 27,  # 'ю'
+     193: 3,  # 'а'
+     194: 21,  # 'б'
+     195: 28,  # 'ц'
+     196: 13,  # 'д'
+     197: 2,  # 'е'
+     198: 39,  # 'ф'
+     199: 19,  # 'г'
+     200: 26,  # 'х'
+     201: 4,  # 'и'
+     202: 23,  # 'й'
+     203: 11,  # 'к'
+     204: 8,  # 'л'
+     205: 12,  # 'м'
+     206: 5,  # 'н'
+     207: 1,  # 'о'
+     208: 15,  # 'п'
+     209: 16,  # 'я'
+     210: 9,  # 'р'
+     211: 7,  # 'с'
+     212: 6,  # 'т'
+     213: 14,  # 'у'
+     214: 24,  # 'ж'
+     215: 10,  # 'в'
+     216: 17,  # 'ь'
+     217: 18,  # 'ы'
+     218: 20,  # 'з'
+     219: 25,  # 'ш'
+     220: 30,  # 'э'
+     221: 29,  # 'щ'
+     222: 22,  # 'ч'
+     223: 54,  # 'ъ'
+     224: 59,  # 'Ю'
+     225: 37,  # 'А'
+     226: 44,  # 'Б'
+     227: 58,  # 'Ц'
+     228: 41,  # 'Д'
+     229: 48,  # 'Е'
+     230: 53,  # 'Ф'
+     231: 46,  # 'Г'
+     232: 55,  # 'Х'
+     233: 42,  # 'И'
+     234: 60,  # 'Й'
+     235: 36,  # 'К'
+     236: 49,  # 'Л'
+     237: 38,  # 'М'
+     238: 31,  # 'Н'
+     239: 34,  # 'О'
+     240: 35,  # 'П'
+     241: 43,  # 'Я'
+     242: 45,  # 'Р'
+     243: 32,  # 'С'
+     244: 40,  # 'Т'
+     245: 52,  # 'У'
+     246: 56,  # 'Ж'
+     247: 33,  # 'В'
+     248: 61,  # 'Ь'
+     249: 62,  # 'Ы'
+     250: 51,  # 'З'
+     251: 57,  # 'Ш'
+     252: 47,  # 'Э'
+     253: 63,  # 'Щ'
+     254: 50,  # 'Ч'
+     255: 70,  # 'Ъ'
+}
+
+KOI8_R_RUSSIAN_MODEL = SingleByteCharSetModel(charset_name='KOI8-R',
+                                              language='Russian',
+                                              char_to_order_map=KOI8_R_RUSSIAN_CHAR_TO_ORDER,
+                                              language_model=RUSSIAN_LANG_MODEL,
+                                              typical_positive_ratio=0.976601,
+                                              keep_ascii_letters=False,
+                                              alphabet='ЁАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюяё')
+
+MACCYRILLIC_RUSSIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 142,  # 'A'
+     66: 143,  # 'B'
+     67: 144,  # 'C'
+     68: 145,  # 'D'
+     69: 146,  # 'E'
+     70: 147,  # 'F'
+     71: 148,  # 'G'
+     72: 149,  # 'H'
+     73: 150,  # 'I'
+     74: 151,  # 'J'
+     75: 152,  # 'K'
+     76: 74,  # 'L'
+     77: 153,  # 'M'
+     78: 75,  # 'N'
+     79: 154,  # 'O'
+     80: 155,  # 'P'
+     81: 156,  # 'Q'
+     82: 157,  # 'R'
+     83: 158,  # 'S'
+     84: 159,  # 'T'
+     85: 160,  # 'U'
+     86: 161,  # 'V'
+     87: 162,  # 'W'
+     88: 163,  # 'X'
+     89: 164,  # 'Y'
+     90: 165,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 71,  # 'a'
+     98: 172,  # 'b'
+     99: 66,  # 'c'
+     100: 173,  # 'd'
+     101: 65,  # 'e'
+     102: 174,  # 'f'
+     103: 76,  # 'g'
+     104: 175,  # 'h'
+     105: 64,  # 'i'
+     106: 176,  # 'j'
+     107: 177,  # 'k'
+     108: 77,  # 'l'
+     109: 72,  # 'm'
+     110: 178,  # 'n'
+     111: 69,  # 'o'
+     112: 67,  # 'p'
+     113: 179,  # 'q'
+     114: 78,  # 'r'
+     115: 73,  # 's'
+     116: 180,  # 't'
+     117: 181,  # 'u'
+     118: 79,  # 'v'
+     119: 182,  # 'w'
+     120: 183,  # 'x'
+     121: 184,  # 'y'
+     122: 185,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 37,  # 'А'
+     129: 44,  # 'Б'
+     130: 33,  # 'В'
+     131: 46,  # 'Г'
+     132: 41,  # 'Д'
+     133: 48,  # 'Е'
+     134: 56,  # 'Ж'
+     135: 51,  # 'З'
+     136: 42,  # 'И'
+     137: 60,  # 'Й'
+     138: 36,  # 'К'
+     139: 49,  # 'Л'
+     140: 38,  # 'М'
+     141: 31,  # 'Н'
+     142: 34,  # 'О'
+     143: 35,  # 'П'
+     144: 45,  # 'Р'
+     145: 32,  # 'С'
+     146: 40,  # 'Т'
+     147: 52,  # 'У'
+     148: 53,  # 'Ф'
+     149: 55,  # 'Х'
+     150: 58,  # 'Ц'
+     151: 50,  # 'Ч'
+     152: 57,  # 'Ш'
+     153: 63,  # 'Щ'
+     154: 70,  # 'Ъ'
+     155: 62,  # 'Ы'
+     156: 61,  # 'Ь'
+     157: 47,  # 'Э'
+     158: 59,  # 'Ю'
+     159: 43,  # 'Я'
+     160: 191,  # '†'
+     161: 192,  # '°'
+     162: 193,  # 'Ґ'
+     163: 194,  # '£'
+     164: 195,  # '§'
+     165: 196,  # '•'
+     166: 197,  # '¶'
+     167: 198,  # 'І'
+     168: 199,  # '®'
+     169: 200,  # '©'
+     170: 201,  # '™'
+     171: 202,  # 'Ђ'
+     172: 203,  # 'ђ'
+     173: 204,  # '≠'
+     174: 205,  # 'Ѓ'
+     175: 206,  # 'ѓ'
+     176: 207,  # '∞'
+     177: 208,  # '±'
+     178: 209,  # '≤'
+     179: 210,  # '≥'
+     180: 211,  # 'і'
+     181: 212,  # 'µ'
+     182: 213,  # 'ґ'
+     183: 214,  # 'Ј'
+     184: 215,  # 'Є'
+     185: 216,  # 'є'
+     186: 217,  # 'Ї'
+     187: 218,  # 'ї'
+     188: 219,  # 'Љ'
+     189: 220,  # 'љ'
+     190: 221,  # 'Њ'
+     191: 222,  # 'њ'
+     192: 223,  # 'ј'
+     193: 224,  # 'Ѕ'
+     194: 225,  # '¬'
+     195: 226,  # '√'
+     196: 227,  # 'ƒ'
+     197: 228,  # '≈'
+     198: 229,  # '∆'
+     199: 230,  # '«'
+     200: 231,  # '»'
+     201: 232,  # '…'
+     202: 233,  # '\xa0'
+     203: 234,  # 'Ћ'
+     204: 235,  # 'ћ'
+     205: 236,  # 'Ќ'
+     206: 237,  # 'ќ'
+     207: 238,  # 'ѕ'
+     208: 239,  # '–'
+     209: 240,  # '—'
+     210: 241,  # '“'
+     211: 242,  # '”'
+     212: 243,  # '‘'
+     213: 244,  # '’'
+     214: 245,  # '÷'
+     215: 246,  # '„'
+     216: 247,  # 'Ў'
+     217: 248,  # 'ў'
+     218: 249,  # 'Џ'
+     219: 250,  # 'џ'
+     220: 251,  # '№'
+     221: 252,  # 'Ё'
+     222: 68,  # 'ё'
+     223: 16,  # 'я'
+     224: 3,  # 'а'
+     225: 21,  # 'б'
+     226: 10,  # 'в'
+     227: 19,  # 'г'
+     228: 13,  # 'д'
+     229: 2,  # 'е'
+     230: 24,  # 'ж'
+     231: 20,  # 'з'
+     232: 4,  # 'и'
+     233: 23,  # 'й'
+     234: 11,  # 'к'
+     235: 8,  # 'л'
+     236: 12,  # 'м'
+     237: 5,  # 'н'
+     238: 1,  # 'о'
+     239: 15,  # 'п'
+     240: 9,  # 'р'
+     241: 7,  # 'с'
+     242: 6,  # 'т'
+     243: 14,  # 'у'
+     244: 39,  # 'ф'
+     245: 26,  # 'х'
+     246: 28,  # 'ц'
+     247: 22,  # 'ч'
+     248: 25,  # 'ш'
+     249: 29,  # 'щ'
+     250: 54,  # 'ъ'
+     251: 18,  # 'ы'
+     252: 17,  # 'ь'
+     253: 30,  # 'э'
+     254: 27,  # 'ю'
+     255: 255,  # '€'
+}
+
+MACCYRILLIC_RUSSIAN_MODEL = SingleByteCharSetModel(charset_name='MacCyrillic',
+                                                   language='Russian',
+                                                   char_to_order_map=MACCYRILLIC_RUSSIAN_CHAR_TO_ORDER,
+                                                   language_model=RUSSIAN_LANG_MODEL,
+                                                   typical_positive_ratio=0.976601,
+                                                   keep_ascii_letters=False,
+                                                   alphabet='ЁАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюяё')
+
+ISO_8859_5_RUSSIAN_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 142,  # 'A'
+     66: 143,  # 'B'
+     67: 144,  # 'C'
+     68: 145,  # 'D'
+     69: 146,  # 'E'
+     70: 147,  # 'F'
+     71: 148,  # 'G'
+     72: 149,  # 'H'
+     73: 150,  # 'I'
+     74: 151,  # 'J'
+     75: 152,  # 'K'
+     76: 74,  # 'L'
+     77: 153,  # 'M'
+     78: 75,  # 'N'
+     79: 154,  # 'O'
+     80: 155,  # 'P'
+     81: 156,  # 'Q'
+     82: 157,  # 'R'
+     83: 158,  # 'S'
+     84: 159,  # 'T'
+     85: 160,  # 'U'
+     86: 161,  # 'V'
+     87: 162,  # 'W'
+     88: 163,  # 'X'
+     89: 164,  # 'Y'
+     90: 165,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 71,  # 'a'
+     98: 172,  # 'b'
+     99: 66,  # 'c'
+     100: 173,  # 'd'
+     101: 65,  # 'e'
+     102: 174,  # 'f'
+     103: 76,  # 'g'
+     104: 175,  # 'h'
+     105: 64,  # 'i'
+     106: 176,  # 'j'
+     107: 177,  # 'k'
+     108: 77,  # 'l'
+     109: 72,  # 'm'
+     110: 178,  # 'n'
+     111: 69,  # 'o'
+     112: 67,  # 'p'
+     113: 179,  # 'q'
+     114: 78,  # 'r'
+     115: 73,  # 's'
+     116: 180,  # 't'
+     117: 181,  # 'u'
+     118: 79,  # 'v'
+     119: 182,  # 'w'
+     120: 183,  # 'x'
+     121: 184,  # 'y'
+     122: 185,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 191,  # '\x80'
+     129: 192,  # '\x81'
+     130: 193,  # '\x82'
+     131: 194,  # '\x83'
+     132: 195,  # '\x84'
+     133: 196,  # '\x85'
+     134: 197,  # '\x86'
+     135: 198,  # '\x87'
+     136: 199,  # '\x88'
+     137: 200,  # '\x89'
+     138: 201,  # '\x8a'
+     139: 202,  # '\x8b'
+     140: 203,  # '\x8c'
+     141: 204,  # '\x8d'
+     142: 205,  # '\x8e'
+     143: 206,  # '\x8f'
+     144: 207,  # '\x90'
+     145: 208,  # '\x91'
+     146: 209,  # '\x92'
+     147: 210,  # '\x93'
+     148: 211,  # '\x94'
+     149: 212,  # '\x95'
+     150: 213,  # '\x96'
+     151: 214,  # '\x97'
+     152: 215,  # '\x98'
+     153: 216,  # '\x99'
+     154: 217,  # '\x9a'
+     155: 218,  # '\x9b'
+     156: 219,  # '\x9c'
+     157: 220,  # '\x9d'
+     158: 221,  # '\x9e'
+     159: 222,  # '\x9f'
+     160: 223,  # '\xa0'
+     161: 224,  # 'Ё'
+     162: 225,  # 'Ђ'
+     163: 226,  # 'Ѓ'
+     164: 227,  # 'Є'
+     165: 228,  # 'Ѕ'
+     166: 229,  # 'І'
+     167: 230,  # 'Ї'
+     168: 231,  # 'Ј'
+     169: 232,  # 'Љ'
+     170: 233,  # 'Њ'
+     171: 234,  # 'Ћ'
+     172: 235,  # 'Ќ'
+     173: 236,  # '\xad'
+     174: 237,  # 'Ў'
+     175: 238,  # 'Џ'
+     176: 37,  # 'А'
+     177: 44,  # 'Б'
+     178: 33,  # 'В'
+     179: 46,  # 'Г'
+     180: 41,  # 'Д'
+     181: 48,  # 'Е'
+     182: 56,  # 'Ж'
+     183: 51,  # 'З'
+     184: 42,  # 'И'
+     185: 60,  # 'Й'
+     186: 36,  # 'К'
+     187: 49,  # 'Л'
+     188: 38,  # 'М'
+     189: 31,  # 'Н'
+     190: 34,  # 'О'
+     191: 35,  # 'П'
+     192: 45,  # 'Р'
+     193: 32,  # 'С'
+     194: 40,  # 'Т'
+     195: 52,  # 'У'
+     196: 53,  # 'Ф'
+     197: 55,  # 'Х'
+     198: 58,  # 'Ц'
+     199: 50,  # 'Ч'
+     200: 57,  # 'Ш'
+     201: 63,  # 'Щ'
+     202: 70,  # 'Ъ'
+     203: 62,  # 'Ы'
+     204: 61,  # 'Ь'
+     205: 47,  # 'Э'
+     206: 59,  # 'Ю'
+     207: 43,  # 'Я'
+     208: 3,  # 'а'
+     209: 21,  # 'б'
+     210: 10,  # 'в'
+     211: 19,  # 'г'
+     212: 13,  # 'д'
+     213: 2,  # 'е'
+     214: 24,  # 'ж'
+     215: 20,  # 'з'
+     216: 4,  # 'и'
+     217: 23,  # 'й'
+     218: 11,  # 'к'
+     219: 8,  # 'л'
+     220: 12,  # 'м'
+     221: 5,  # 'н'
+     222: 1,  # 'о'
+     223: 15,  # 'п'
+     224: 9,  # 'р'
+     225: 7,  # 'с'
+     226: 6,  # 'т'
+     227: 14,  # 'у'
+     228: 39,  # 'ф'
+     229: 26,  # 'х'
+     230: 28,  # 'ц'
+     231: 22,  # 'ч'
+     232: 25,  # 'ш'
+     233: 29,  # 'щ'
+     234: 54,  # 'ъ'
+     235: 18,  # 'ы'
+     236: 17,  # 'ь'
+     237: 30,  # 'э'
+     238: 27,  # 'ю'
+     239: 16,  # 'я'
+     240: 239,  # '№'
+     241: 68,  # 'ё'
+     242: 240,  # 'ђ'
+     243: 241,  # 'ѓ'
+     244: 242,  # 'є'
+     245: 243,  # 'ѕ'
+     246: 244,  # 'і'
+     247: 245,  # 'ї'
+     248: 246,  # 'ј'
+     249: 247,  # 'љ'
+     250: 248,  # 'њ'
+     251: 249,  # 'ћ'
+     252: 250,  # 'ќ'
+     253: 251,  # '§'
+     254: 252,  # 'ў'
+     255: 255,  # 'џ'
+}
+
+ISO_8859_5_RUSSIAN_MODEL = SingleByteCharSetModel(charset_name='ISO-8859-5',
+                                                  language='Russian',
+                                                  char_to_order_map=ISO_8859_5_RUSSIAN_CHAR_TO_ORDER,
+                                                  language_model=RUSSIAN_LANG_MODEL,
+                                                  typical_positive_ratio=0.976601,
+                                                  keep_ascii_letters=False,
+                                                  alphabet='ЁАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюяё')
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langthaimodel.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langthaimodel.py
new file mode 100644
index 0000000..9a37db5
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langthaimodel.py
@@ -0,0 +1,4383 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from pip._vendor.chardet.sbcharsetprober import SingleByteCharSetModel
+
+
+# 3: Positive
+# 2: Likely
+# 1: Unlikely
+# 0: Negative
+
+THAI_LANG_MODEL = {
+    5: {  # 'ก'
+        5: 2,  # 'ก'
+        30: 2,  # 'ข'
+        24: 2,  # 'ค'
+        8: 2,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 3,  # 'ฎ'
+        57: 2,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 2,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 3,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 2,  # 'น'
+        17: 1,  # 'บ'
+        25: 2,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 1,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 1,  # 'ย'
+        2: 3,  # 'ร'
+        61: 2,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 3,  # 'ว'
+        42: 2,  # 'ศ'
+        46: 3,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 2,  # 'ห'
+        4: 3,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 3,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 2,  # 'ื'
+        32: 2,  # 'ุ'
+        35: 1,  # 'ู'
+        11: 2,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 1,  # 'ๆ'
+        37: 3,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 2,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    30: {  # 'ข'
+        5: 1,  # 'ก'
+        30: 0,  # 'ข'
+        24: 1,  # 'ค'
+        8: 1,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 2,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 2,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 2,  # 'น'
+        17: 1,  # 'บ'
+        25: 1,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 2,  # 'ย'
+        2: 1,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 2,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 1,  # 'ห'
+        4: 3,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 3,  # 'ึ'
+        27: 1,  # 'ื'
+        32: 1,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 1,  # '็'
+        6: 2,  # '่'
+        7: 3,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    24: {  # 'ค'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 2,  # 'ค'
+        8: 2,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 2,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 2,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 0,  # 'บ'
+        25: 1,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 2,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 3,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 0,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 2,  # 'า'
+        36: 3,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 3,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 2,  # 'ู'
+        11: 1,  # 'เ'
+        28: 0,  # 'แ'
+        41: 3,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 1,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 3,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    8: {  # 'ง'
+        5: 3,  # 'ก'
+        30: 2,  # 'ข'
+        24: 3,  # 'ค'
+        8: 2,  # 'ง'
+        26: 2,  # 'จ'
+        52: 1,  # 'ฉ'
+        34: 2,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 2,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 3,  # 'น'
+        17: 2,  # 'บ'
+        25: 2,  # 'ป'
+        39: 2,  # 'ผ'
+        62: 1,  # 'ฝ'
+        31: 2,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 1,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 2,  # 'ว'
+        42: 2,  # 'ศ'
+        46: 1,  # 'ษ'
+        18: 3,  # 'ส'
+        21: 3,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 1,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 1,  # 'ื'
+        32: 1,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 3,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 3,  # 'ๆ'
+        37: 0,  # '็'
+        6: 2,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    26: {  # 'จ'
+        5: 2,  # 'ก'
+        30: 1,  # 'ข'
+        24: 0,  # 'ค'
+        8: 2,  # 'ง'
+        26: 3,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 1,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 1,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 1,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 1,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 3,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 3,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 3,  # 'ึ'
+        27: 1,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 2,  # 'ู'
+        11: 1,  # 'เ'
+        28: 1,  # 'แ'
+        41: 0,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 2,  # '่'
+        7: 2,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    52: {  # 'ฉ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 3,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 3,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 1,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 1,  # 'ะ'
+        10: 1,  # 'ั'
+        1: 1,  # 'า'
+        36: 0,  # 'ำ'
+        23: 1,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 1,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    34: {  # 'ช'
+        5: 1,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 1,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 1,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 2,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 1,  # 'ย'
+        2: 1,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 2,  # 'ั'
+        1: 3,  # 'า'
+        36: 1,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 3,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 1,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 1,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    51: {  # 'ซ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 1,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 0,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 1,  # 'ั'
+        1: 1,  # 'า'
+        36: 0,  # 'ำ'
+        23: 1,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 3,  # 'ึ'
+        27: 2,  # 'ื'
+        32: 1,  # 'ุ'
+        35: 1,  # 'ู'
+        11: 1,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 1,  # '็'
+        6: 1,  # '่'
+        7: 2,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    47: {  # 'ญ'
+        5: 1,  # 'ก'
+        30: 1,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 3,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 1,  # 'บ'
+        25: 1,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 2,  # 'ห'
+        4: 1,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 1,  # 'ะ'
+        10: 2,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 1,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 1,  # 'เ'
+        28: 1,  # 'แ'
+        41: 0,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 1,  # 'ๆ'
+        37: 0,  # '็'
+        6: 2,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    58: {  # 'ฎ'
+        5: 2,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 1,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 1,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    57: {  # 'ฏ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    49: {  # 'ฐ'
+        5: 1,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 2,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 1,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    53: {  # 'ฑ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 3,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    55: {  # 'ฒ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 1,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    43: {  # 'ณ'
+        5: 1,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 3,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 3,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 1,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 1,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 3,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 1,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 1,  # 'เ'
+        28: 1,  # 'แ'
+        41: 0,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 3,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    20: {  # 'ด'
+        5: 2,  # 'ก'
+        30: 2,  # 'ข'
+        24: 2,  # 'ค'
+        8: 3,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 2,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 1,  # 'น'
+        17: 1,  # 'บ'
+        25: 1,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 3,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 2,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 2,  # 'ห'
+        4: 1,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 2,  # 'า'
+        36: 2,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 1,  # 'ึ'
+        27: 2,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 2,  # 'ู'
+        11: 2,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 2,  # 'ๆ'
+        37: 2,  # '็'
+        6: 1,  # '่'
+        7: 3,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    19: {  # 'ต'
+        5: 2,  # 'ก'
+        30: 1,  # 'ข'
+        24: 1,  # 'ค'
+        8: 0,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 1,  # 'ต'
+        44: 2,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 2,  # 'น'
+        17: 1,  # 'บ'
+        25: 1,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 2,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 1,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 3,  # 'ส'
+        21: 0,  # 'ห'
+        4: 3,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 2,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 1,  # 'ึ'
+        27: 1,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 2,  # 'ู'
+        11: 1,  # 'เ'
+        28: 1,  # 'แ'
+        41: 1,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 2,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 2,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    44: {  # 'ถ'
+        5: 1,  # 'ก'
+        30: 0,  # 'ข'
+        24: 1,  # 'ค'
+        8: 0,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 1,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 1,  # 'น'
+        17: 2,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 1,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 0,  # 'ห'
+        4: 1,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 2,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 3,  # 'ึ'
+        27: 2,  # 'ื'
+        32: 2,  # 'ุ'
+        35: 3,  # 'ู'
+        11: 1,  # 'เ'
+        28: 1,  # 'แ'
+        41: 0,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 2,  # '่'
+        7: 3,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    14: {  # 'ท'
+        5: 1,  # 'ก'
+        30: 1,  # 'ข'
+        24: 3,  # 'ค'
+        8: 1,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 1,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 3,  # 'ธ'
+        3: 3,  # 'น'
+        17: 2,  # 'บ'
+        25: 2,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 2,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 3,  # 'ย'
+        2: 3,  # 'ร'
+        61: 1,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 2,  # 'ว'
+        42: 3,  # 'ศ'
+        46: 1,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 0,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 3,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 2,  # 'ึ'
+        27: 1,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 1,  # 'ู'
+        11: 0,  # 'เ'
+        28: 1,  # 'แ'
+        41: 0,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 1,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 2,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    48: {  # 'ธ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 1,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 1,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 2,  # 'า'
+        36: 0,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 2,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 3,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    3: {  # 'น'
+        5: 3,  # 'ก'
+        30: 2,  # 'ข'
+        24: 3,  # 'ค'
+        8: 1,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 1,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 3,  # 'ต'
+        44: 2,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 3,  # 'ธ'
+        3: 2,  # 'น'
+        17: 2,  # 'บ'
+        25: 2,  # 'ป'
+        39: 2,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 2,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 2,  # 'ย'
+        2: 2,  # 'ร'
+        61: 1,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 3,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 2,  # 'ห'
+        4: 3,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 3,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 3,  # 'ึ'
+        27: 3,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 2,  # 'ู'
+        11: 3,  # 'เ'
+        28: 2,  # 'แ'
+        41: 3,  # 'โ'
+        29: 3,  # 'ใ'
+        33: 3,  # 'ไ'
+        50: 2,  # 'ๆ'
+        37: 1,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 2,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    17: {  # 'บ'
+        5: 3,  # 'ก'
+        30: 2,  # 'ข'
+        24: 2,  # 'ค'
+        8: 1,  # 'ง'
+        26: 1,  # 'จ'
+        52: 1,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 2,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 3,  # 'บ'
+        25: 2,  # 'ป'
+        39: 2,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 0,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 3,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 2,  # 'ห'
+        4: 2,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 2,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 2,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 2,  # 'ู'
+        11: 2,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 1,  # '็'
+        6: 2,  # '่'
+        7: 2,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    25: {  # 'ป'
+        5: 2,  # 'ก'
+        30: 0,  # 'ข'
+        24: 1,  # 'ค'
+        8: 0,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 1,  # 'ฎ'
+        57: 3,  # 'ฏ'
+        49: 1,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 1,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 2,  # 'น'
+        17: 0,  # 'บ'
+        25: 1,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 1,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 0,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 1,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 1,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 1,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 1,  # 'า'
+        36: 0,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 1,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 1,  # 'เ'
+        28: 2,  # 'แ'
+        41: 0,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 3,  # '็'
+        6: 1,  # '่'
+        7: 2,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    39: {  # 'ผ'
+        5: 1,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 1,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 2,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 2,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 1,  # 'ะ'
+        10: 1,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 1,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 3,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 1,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    62: {  # 'ฝ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 1,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 1,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 1,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 2,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 2,  # '่'
+        7: 1,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    31: {  # 'พ'
+        5: 1,  # 'ก'
+        30: 1,  # 'ข'
+        24: 1,  # 'ค'
+        8: 1,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 1,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 1,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 3,  # 'น'
+        17: 2,  # 'บ'
+        25: 0,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 2,  # 'ย'
+        2: 3,  # 'ร'
+        61: 2,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 2,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 1,  # 'ห'
+        4: 2,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 1,  # 'ึ'
+        27: 3,  # 'ื'
+        32: 1,  # 'ุ'
+        35: 2,  # 'ู'
+        11: 1,  # 'เ'
+        28: 1,  # 'แ'
+        41: 0,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 1,  # '็'
+        6: 0,  # '่'
+        7: 1,  # '้'
+        38: 3,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    54: {  # 'ฟ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 1,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 2,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 1,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 0,  # 'ห'
+        4: 1,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 2,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 1,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 1,  # 'ื'
+        32: 1,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 1,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 2,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    45: {  # 'ภ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 1,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 1,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 1,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 2,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    9: {  # 'ม'
+        5: 2,  # 'ก'
+        30: 2,  # 'ข'
+        24: 2,  # 'ค'
+        8: 2,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 1,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 2,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 3,  # 'น'
+        17: 2,  # 'บ'
+        25: 2,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 3,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 1,  # 'ย'
+        2: 2,  # 'ร'
+        61: 2,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 2,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 1,  # 'ษ'
+        18: 3,  # 'ส'
+        21: 3,  # 'ห'
+        4: 3,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 1,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 3,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 3,  # 'ู'
+        11: 2,  # 'เ'
+        28: 2,  # 'แ'
+        41: 2,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 1,  # 'ๆ'
+        37: 1,  # '็'
+        6: 3,  # '่'
+        7: 2,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    16: {  # 'ย'
+        5: 3,  # 'ก'
+        30: 1,  # 'ข'
+        24: 2,  # 'ค'
+        8: 3,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 2,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 2,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 2,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 3,  # 'น'
+        17: 3,  # 'บ'
+        25: 1,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 0,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 3,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 1,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 1,  # 'ึ'
+        27: 2,  # 'ื'
+        32: 2,  # 'ุ'
+        35: 3,  # 'ู'
+        11: 2,  # 'เ'
+        28: 1,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 2,  # 'ๆ'
+        37: 1,  # '็'
+        6: 3,  # '่'
+        7: 2,  # '้'
+        38: 3,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    2: {  # 'ร'
+        5: 3,  # 'ก'
+        30: 2,  # 'ข'
+        24: 2,  # 'ค'
+        8: 3,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 2,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 3,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 3,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 2,  # 'ต'
+        44: 3,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 2,  # 'น'
+        17: 2,  # 'บ'
+        25: 3,  # 'ป'
+        39: 2,  # 'ผ'
+        62: 1,  # 'ฝ'
+        31: 2,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 2,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 3,  # 'ว'
+        42: 2,  # 'ศ'
+        46: 2,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 2,  # 'ห'
+        4: 3,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 3,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 2,  # 'ึ'
+        27: 3,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 3,  # 'ู'
+        11: 3,  # 'เ'
+        28: 3,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 3,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 3,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    61: {  # 'ฤ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 2,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 2,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    15: {  # 'ล'
+        5: 2,  # 'ก'
+        30: 3,  # 'ข'
+        24: 1,  # 'ค'
+        8: 3,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 2,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 1,  # 'น'
+        17: 2,  # 'บ'
+        25: 2,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 3,  # 'ย'
+        2: 1,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 1,  # 'ห'
+        4: 3,  # 'อ'
+        63: 2,  # 'ฯ'
+        22: 3,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 2,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 2,  # 'ึ'
+        27: 3,  # 'ื'
+        32: 2,  # 'ุ'
+        35: 3,  # 'ู'
+        11: 2,  # 'เ'
+        28: 1,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 2,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 2,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    12: {  # 'ว'
+        5: 3,  # 'ก'
+        30: 2,  # 'ข'
+        24: 1,  # 'ค'
+        8: 3,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 1,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 1,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 2,  # 'บ'
+        25: 1,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 3,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 2,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 2,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 2,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 3,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 1,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    42: {  # 'ศ'
+        5: 1,  # 'ก'
+        30: 0,  # 'ข'
+        24: 1,  # 'ค'
+        8: 0,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 1,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 1,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 2,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 2,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 2,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 2,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 3,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 2,  # 'ู'
+        11: 0,  # 'เ'
+        28: 1,  # 'แ'
+        41: 0,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    46: {  # 'ษ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 2,  # 'ฎ'
+        57: 1,  # 'ฏ'
+        49: 2,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 3,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 1,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 2,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 2,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 1,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 2,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    18: {  # 'ส'
+        5: 2,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 2,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 3,  # 'ต'
+        44: 3,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 2,  # 'บ'
+        25: 1,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 2,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 1,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 2,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 2,  # 'ห'
+        4: 3,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 3,  # 'ำ'
+        23: 3,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 2,  # 'ึ'
+        27: 3,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 3,  # 'ู'
+        11: 2,  # 'เ'
+        28: 0,  # 'แ'
+        41: 1,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 1,  # '้'
+        38: 2,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    21: {  # 'ห'
+        5: 3,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 1,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 2,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 3,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 0,  # 'บ'
+        25: 1,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 2,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 2,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 3,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 1,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 0,  # 'ำ'
+        23: 1,  # 'ิ'
+        13: 1,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 1,  # 'ุ'
+        35: 1,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 3,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 2,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    4: {  # 'อ'
+        5: 3,  # 'ก'
+        30: 1,  # 'ข'
+        24: 2,  # 'ค'
+        8: 3,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 2,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 3,  # 'น'
+        17: 3,  # 'บ'
+        25: 1,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 3,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 2,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 2,  # 'ห'
+        4: 3,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 2,  # 'ะ'
+        10: 3,  # 'ั'
+        1: 3,  # 'า'
+        36: 2,  # 'ำ'
+        23: 2,  # 'ิ'
+        13: 3,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 3,  # 'ื'
+        32: 3,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 3,  # 'เ'
+        28: 1,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 1,  # 'ๆ'
+        37: 1,  # '็'
+        6: 2,  # '่'
+        7: 2,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    63: {  # 'ฯ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    22: {  # 'ะ'
+        5: 3,  # 'ก'
+        30: 1,  # 'ข'
+        24: 2,  # 'ค'
+        8: 1,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 3,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 3,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 2,  # 'น'
+        17: 3,  # 'บ'
+        25: 2,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 2,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 2,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 2,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 3,  # 'ส'
+        21: 3,  # 'ห'
+        4: 2,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 1,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 3,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    10: {  # 'ั'
+        5: 3,  # 'ก'
+        30: 0,  # 'ข'
+        24: 1,  # 'ค'
+        8: 3,  # 'ง'
+        26: 3,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 3,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 2,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 3,  # 'ฒ'
+        43: 3,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 3,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 3,  # 'บ'
+        25: 1,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 2,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 3,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 3,  # 'ว'
+        42: 2,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 3,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    1: {  # 'า'
+        5: 3,  # 'ก'
+        30: 2,  # 'ข'
+        24: 3,  # 'ค'
+        8: 3,  # 'ง'
+        26: 3,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 3,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 2,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 3,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 3,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 2,  # 'ธ'
+        3: 3,  # 'น'
+        17: 3,  # 'บ'
+        25: 2,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 1,  # 'ฝ'
+        31: 3,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 3,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 3,  # 'ว'
+        42: 2,  # 'ศ'
+        46: 3,  # 'ษ'
+        18: 3,  # 'ส'
+        21: 3,  # 'ห'
+        4: 2,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 3,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 3,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 1,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    36: {  # 'ำ'
+        5: 2,  # 'ก'
+        30: 1,  # 'ข'
+        24: 3,  # 'ค'
+        8: 2,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 1,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 1,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 1,  # 'บ'
+        25: 1,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 0,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 3,  # 'ห'
+        4: 1,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 3,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    23: {  # 'ิ'
+        5: 3,  # 'ก'
+        30: 1,  # 'ข'
+        24: 2,  # 'ค'
+        8: 3,  # 'ง'
+        26: 3,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 3,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 2,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 3,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 3,  # 'ธ'
+        3: 3,  # 'น'
+        17: 3,  # 'บ'
+        25: 2,  # 'ป'
+        39: 2,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 3,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 2,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 2,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 3,  # 'ว'
+        42: 3,  # 'ศ'
+        46: 2,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 3,  # 'ห'
+        4: 1,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 3,  # 'เ'
+        28: 1,  # 'แ'
+        41: 1,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 2,  # '้'
+        38: 2,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    13: {  # 'ี'
+        5: 3,  # 'ก'
+        30: 2,  # 'ข'
+        24: 2,  # 'ค'
+        8: 0,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 1,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 1,  # 'น'
+        17: 2,  # 'บ'
+        25: 2,  # 'ป'
+        39: 1,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 2,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 3,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 2,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 1,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
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+        23: 0,  # 'ิ'
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+        40: 0,  # 'ึ'
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+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 2,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 1,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    40: {  # 'ึ'
+        5: 3,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 3,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
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+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
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+        23: 0,  # 'ิ'
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+        40: 0,  # 'ึ'
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+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    27: {  # 'ื'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 2,  # 'น'
+        17: 3,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 3,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    32: {  # 'ุ'
+        5: 3,  # 'ก'
+        30: 2,  # 'ข'
+        24: 3,  # 'ค'
+        8: 3,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 2,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 1,  # 'ฒ'
+        43: 3,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 3,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 2,  # 'น'
+        17: 2,  # 'บ'
+        25: 2,  # 'ป'
+        39: 2,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 1,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 1,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 2,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 1,  # 'ห'
+        4: 1,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 1,  # 'เ'
+        28: 0,  # 'แ'
+        41: 1,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 2,  # '้'
+        38: 1,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    35: {  # 'ู'
+        5: 3,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 2,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 2,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 1,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 2,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 2,  # 'น'
+        17: 0,  # 'บ'
+        25: 3,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 0,  # 'ย'
+        2: 1,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 1,  # 'เ'
+        28: 1,  # 'แ'
+        41: 1,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 3,  # '่'
+        7: 3,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    11: {  # 'เ'
+        5: 3,  # 'ก'
+        30: 3,  # 'ข'
+        24: 3,  # 'ค'
+        8: 2,  # 'ง'
+        26: 3,  # 'จ'
+        52: 3,  # 'ฉ'
+        34: 3,  # 'ช'
+        51: 2,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 1,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 3,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 3,  # 'น'
+        17: 3,  # 'บ'
+        25: 3,  # 'ป'
+        39: 2,  # 'ผ'
+        62: 1,  # 'ฝ'
+        31: 3,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 3,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 2,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 3,  # 'ว'
+        42: 2,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 3,  # 'ส'
+        21: 3,  # 'ห'
+        4: 3,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    28: {  # 'แ'
+        5: 3,  # 'ก'
+        30: 2,  # 'ข'
+        24: 2,  # 'ค'
+        8: 1,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 3,  # 'ต'
+        44: 2,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 3,  # 'บ'
+        25: 2,  # 'ป'
+        39: 3,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 2,  # 'พ'
+        54: 2,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 2,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 2,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 3,  # 'ส'
+        21: 3,  # 'ห'
+        4: 1,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    41: {  # 'โ'
+        5: 2,  # 'ก'
+        30: 1,  # 'ข'
+        24: 2,  # 'ค'
+        8: 0,  # 'ง'
+        26: 1,  # 'จ'
+        52: 1,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 2,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 1,  # 'บ'
+        25: 3,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 1,  # 'ภ'
+        9: 1,  # 'ม'
+        16: 2,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 3,  # 'ล'
+        12: 0,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 0,  # 'ห'
+        4: 2,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    29: {  # 'ใ'
+        5: 2,  # 'ก'
+        30: 0,  # 'ข'
+        24: 1,  # 'ค'
+        8: 0,  # 'ง'
+        26: 3,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 3,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 1,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 2,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 1,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 3,  # 'ส'
+        21: 3,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    33: {  # 'ไ'
+        5: 1,  # 'ก'
+        30: 2,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 3,  # 'ด'
+        19: 1,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 3,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 1,  # 'บ'
+        25: 3,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 2,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 0,  # 'ย'
+        2: 3,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 3,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 2,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    50: {  # 'ๆ'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    37: {  # '็'
+        5: 2,  # 'ก'
+        30: 1,  # 'ข'
+        24: 2,  # 'ค'
+        8: 2,  # 'ง'
+        26: 3,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 1,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 2,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 3,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 1,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 2,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 0,  # 'ห'
+        4: 1,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 1,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    6: {  # '่'
+        5: 2,  # 'ก'
+        30: 1,  # 'ข'
+        24: 2,  # 'ค'
+        8: 3,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 1,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 2,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 1,  # 'ธ'
+        3: 3,  # 'น'
+        17: 1,  # 'บ'
+        25: 2,  # 'ป'
+        39: 2,  # 'ผ'
+        62: 1,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 3,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 2,  # 'ล'
+        12: 3,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 1,  # 'ห'
+        4: 3,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 1,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 3,  # 'า'
+        36: 2,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 3,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 1,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    7: {  # '้'
+        5: 2,  # 'ก'
+        30: 1,  # 'ข'
+        24: 2,  # 'ค'
+        8: 3,  # 'ง'
+        26: 2,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 1,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 1,  # 'ด'
+        19: 2,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 2,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 3,  # 'น'
+        17: 2,  # 'บ'
+        25: 2,  # 'ป'
+        39: 2,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 3,  # 'ม'
+        16: 2,  # 'ย'
+        2: 2,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 3,  # 'ว'
+        42: 1,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 2,  # 'ส'
+        21: 2,  # 'ห'
+        4: 3,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 3,  # 'า'
+        36: 2,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 2,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 2,  # 'ใ'
+        33: 2,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    38: {  # '์'
+        5: 2,  # 'ก'
+        30: 1,  # 'ข'
+        24: 1,  # 'ค'
+        8: 0,  # 'ง'
+        26: 1,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 1,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 2,  # 'ด'
+        19: 1,  # 'ต'
+        44: 1,  # 'ถ'
+        14: 1,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 1,  # 'น'
+        17: 1,  # 'บ'
+        25: 1,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 1,  # 'พ'
+        54: 1,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 2,  # 'ม'
+        16: 0,  # 'ย'
+        2: 1,  # 'ร'
+        61: 1,  # 'ฤ'
+        15: 1,  # 'ล'
+        12: 1,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 1,  # 'ส'
+        21: 1,  # 'ห'
+        4: 2,  # 'อ'
+        63: 1,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 2,  # 'เ'
+        28: 2,  # 'แ'
+        41: 1,  # 'โ'
+        29: 1,  # 'ใ'
+        33: 1,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 0,  # '๑'
+        59: 0,  # '๒'
+        60: 0,  # '๕'
+    },
+    56: {  # '๑'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 2,  # '๑'
+        59: 1,  # '๒'
+        60: 1,  # '๕'
+    },
+    59: {  # '๒'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 1,  # '๑'
+        59: 1,  # '๒'
+        60: 3,  # '๕'
+    },
+    60: {  # '๕'
+        5: 0,  # 'ก'
+        30: 0,  # 'ข'
+        24: 0,  # 'ค'
+        8: 0,  # 'ง'
+        26: 0,  # 'จ'
+        52: 0,  # 'ฉ'
+        34: 0,  # 'ช'
+        51: 0,  # 'ซ'
+        47: 0,  # 'ญ'
+        58: 0,  # 'ฎ'
+        57: 0,  # 'ฏ'
+        49: 0,  # 'ฐ'
+        53: 0,  # 'ฑ'
+        55: 0,  # 'ฒ'
+        43: 0,  # 'ณ'
+        20: 0,  # 'ด'
+        19: 0,  # 'ต'
+        44: 0,  # 'ถ'
+        14: 0,  # 'ท'
+        48: 0,  # 'ธ'
+        3: 0,  # 'น'
+        17: 0,  # 'บ'
+        25: 0,  # 'ป'
+        39: 0,  # 'ผ'
+        62: 0,  # 'ฝ'
+        31: 0,  # 'พ'
+        54: 0,  # 'ฟ'
+        45: 0,  # 'ภ'
+        9: 0,  # 'ม'
+        16: 0,  # 'ย'
+        2: 0,  # 'ร'
+        61: 0,  # 'ฤ'
+        15: 0,  # 'ล'
+        12: 0,  # 'ว'
+        42: 0,  # 'ศ'
+        46: 0,  # 'ษ'
+        18: 0,  # 'ส'
+        21: 0,  # 'ห'
+        4: 0,  # 'อ'
+        63: 0,  # 'ฯ'
+        22: 0,  # 'ะ'
+        10: 0,  # 'ั'
+        1: 0,  # 'า'
+        36: 0,  # 'ำ'
+        23: 0,  # 'ิ'
+        13: 0,  # 'ี'
+        40: 0,  # 'ึ'
+        27: 0,  # 'ื'
+        32: 0,  # 'ุ'
+        35: 0,  # 'ู'
+        11: 0,  # 'เ'
+        28: 0,  # 'แ'
+        41: 0,  # 'โ'
+        29: 0,  # 'ใ'
+        33: 0,  # 'ไ'
+        50: 0,  # 'ๆ'
+        37: 0,  # '็'
+        6: 0,  # '่'
+        7: 0,  # '้'
+        38: 0,  # '์'
+        56: 2,  # '๑'
+        59: 1,  # '๒'
+        60: 0,  # '๕'
+    },
+}
+
+# 255: Undefined characters that did not exist in training text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+# 251: Control characters
+
+# Character Mapping Table(s):
+TIS_620_THAI_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 254,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 254,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 253,  # ' '
+     33: 253,  # '!'
+     34: 253,  # '"'
+     35: 253,  # '#'
+     36: 253,  # '$'
+     37: 253,  # '%'
+     38: 253,  # '&'
+     39: 253,  # "'"
+     40: 253,  # '('
+     41: 253,  # ')'
+     42: 253,  # '*'
+     43: 253,  # '+'
+     44: 253,  # ','
+     45: 253,  # '-'
+     46: 253,  # '.'
+     47: 253,  # '/'
+     48: 252,  # '0'
+     49: 252,  # '1'
+     50: 252,  # '2'
+     51: 252,  # '3'
+     52: 252,  # '4'
+     53: 252,  # '5'
+     54: 252,  # '6'
+     55: 252,  # '7'
+     56: 252,  # '8'
+     57: 252,  # '9'
+     58: 253,  # ':'
+     59: 253,  # ';'
+     60: 253,  # '<'
+     61: 253,  # '='
+     62: 253,  # '>'
+     63: 253,  # '?'
+     64: 253,  # '@'
+     65: 182,  # 'A'
+     66: 106,  # 'B'
+     67: 107,  # 'C'
+     68: 100,  # 'D'
+     69: 183,  # 'E'
+     70: 184,  # 'F'
+     71: 185,  # 'G'
+     72: 101,  # 'H'
+     73: 94,  # 'I'
+     74: 186,  # 'J'
+     75: 187,  # 'K'
+     76: 108,  # 'L'
+     77: 109,  # 'M'
+     78: 110,  # 'N'
+     79: 111,  # 'O'
+     80: 188,  # 'P'
+     81: 189,  # 'Q'
+     82: 190,  # 'R'
+     83: 89,  # 'S'
+     84: 95,  # 'T'
+     85: 112,  # 'U'
+     86: 113,  # 'V'
+     87: 191,  # 'W'
+     88: 192,  # 'X'
+     89: 193,  # 'Y'
+     90: 194,  # 'Z'
+     91: 253,  # '['
+     92: 253,  # '\\'
+     93: 253,  # ']'
+     94: 253,  # '^'
+     95: 253,  # '_'
+     96: 253,  # '`'
+     97: 64,  # 'a'
+     98: 72,  # 'b'
+     99: 73,  # 'c'
+     100: 114,  # 'd'
+     101: 74,  # 'e'
+     102: 115,  # 'f'
+     103: 116,  # 'g'
+     104: 102,  # 'h'
+     105: 81,  # 'i'
+     106: 201,  # 'j'
+     107: 117,  # 'k'
+     108: 90,  # 'l'
+     109: 103,  # 'm'
+     110: 78,  # 'n'
+     111: 82,  # 'o'
+     112: 96,  # 'p'
+     113: 202,  # 'q'
+     114: 91,  # 'r'
+     115: 79,  # 's'
+     116: 84,  # 't'
+     117: 104,  # 'u'
+     118: 105,  # 'v'
+     119: 97,  # 'w'
+     120: 98,  # 'x'
+     121: 92,  # 'y'
+     122: 203,  # 'z'
+     123: 253,  # '{'
+     124: 253,  # '|'
+     125: 253,  # '}'
+     126: 253,  # '~'
+     127: 253,  # '\x7f'
+     128: 209,  # '\x80'
+     129: 210,  # '\x81'
+     130: 211,  # '\x82'
+     131: 212,  # '\x83'
+     132: 213,  # '\x84'
+     133: 88,  # '\x85'
+     134: 214,  # '\x86'
+     135: 215,  # '\x87'
+     136: 216,  # '\x88'
+     137: 217,  # '\x89'
+     138: 218,  # '\x8a'
+     139: 219,  # '\x8b'
+     140: 220,  # '\x8c'
+     141: 118,  # '\x8d'
+     142: 221,  # '\x8e'
+     143: 222,  # '\x8f'
+     144: 223,  # '\x90'
+     145: 224,  # '\x91'
+     146: 99,  # '\x92'
+     147: 85,  # '\x93'
+     148: 83,  # '\x94'
+     149: 225,  # '\x95'
+     150: 226,  # '\x96'
+     151: 227,  # '\x97'
+     152: 228,  # '\x98'
+     153: 229,  # '\x99'
+     154: 230,  # '\x9a'
+     155: 231,  # '\x9b'
+     156: 232,  # '\x9c'
+     157: 233,  # '\x9d'
+     158: 234,  # '\x9e'
+     159: 235,  # '\x9f'
+     160: 236,  # None
+     161: 5,  # 'ก'
+     162: 30,  # 'ข'
+     163: 237,  # 'ฃ'
+     164: 24,  # 'ค'
+     165: 238,  # 'ฅ'
+     166: 75,  # 'ฆ'
+     167: 8,  # 'ง'
+     168: 26,  # 'จ'
+     169: 52,  # 'ฉ'
+     170: 34,  # 'ช'
+     171: 51,  # 'ซ'
+     172: 119,  # 'ฌ'
+     173: 47,  # 'ญ'
+     174: 58,  # 'ฎ'
+     175: 57,  # 'ฏ'
+     176: 49,  # 'ฐ'
+     177: 53,  # 'ฑ'
+     178: 55,  # 'ฒ'
+     179: 43,  # 'ณ'
+     180: 20,  # 'ด'
+     181: 19,  # 'ต'
+     182: 44,  # 'ถ'
+     183: 14,  # 'ท'
+     184: 48,  # 'ธ'
+     185: 3,  # 'น'
+     186: 17,  # 'บ'
+     187: 25,  # 'ป'
+     188: 39,  # 'ผ'
+     189: 62,  # 'ฝ'
+     190: 31,  # 'พ'
+     191: 54,  # 'ฟ'
+     192: 45,  # 'ภ'
+     193: 9,  # 'ม'
+     194: 16,  # 'ย'
+     195: 2,  # 'ร'
+     196: 61,  # 'ฤ'
+     197: 15,  # 'ล'
+     198: 239,  # 'ฦ'
+     199: 12,  # 'ว'
+     200: 42,  # 'ศ'
+     201: 46,  # 'ษ'
+     202: 18,  # 'ส'
+     203: 21,  # 'ห'
+     204: 76,  # 'ฬ'
+     205: 4,  # 'อ'
+     206: 66,  # 'ฮ'
+     207: 63,  # 'ฯ'
+     208: 22,  # 'ะ'
+     209: 10,  # 'ั'
+     210: 1,  # 'า'
+     211: 36,  # 'ำ'
+     212: 23,  # 'ิ'
+     213: 13,  # 'ี'
+     214: 40,  # 'ึ'
+     215: 27,  # 'ื'
+     216: 32,  # 'ุ'
+     217: 35,  # 'ู'
+     218: 86,  # 'ฺ'
+     219: 240,  # None
+     220: 241,  # None
+     221: 242,  # None
+     222: 243,  # None
+     223: 244,  # '฿'
+     224: 11,  # 'เ'
+     225: 28,  # 'แ'
+     226: 41,  # 'โ'
+     227: 29,  # 'ใ'
+     228: 33,  # 'ไ'
+     229: 245,  # 'ๅ'
+     230: 50,  # 'ๆ'
+     231: 37,  # '็'
+     232: 6,  # '่'
+     233: 7,  # '้'
+     234: 67,  # '๊'
+     235: 77,  # '๋'
+     236: 38,  # '์'
+     237: 93,  # 'ํ'
+     238: 246,  # '๎'
+     239: 247,  # '๏'
+     240: 68,  # '๐'
+     241: 56,  # '๑'
+     242: 59,  # '๒'
+     243: 65,  # '๓'
+     244: 69,  # '๔'
+     245: 60,  # '๕'
+     246: 70,  # '๖'
+     247: 80,  # '๗'
+     248: 71,  # '๘'
+     249: 87,  # '๙'
+     250: 248,  # '๚'
+     251: 249,  # '๛'
+     252: 250,  # None
+     253: 251,  # None
+     254: 252,  # None
+     255: 253,  # None
+}
+
+TIS_620_THAI_MODEL = SingleByteCharSetModel(charset_name='TIS-620',
+                                            language='Thai',
+                                            char_to_order_map=TIS_620_THAI_CHAR_TO_ORDER,
+                                            language_model=THAI_LANG_MODEL,
+                                            typical_positive_ratio=0.926386,
+                                            keep_ascii_letters=False,
+                                            alphabet='กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛')
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langturkishmodel.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langturkishmodel.py
new file mode 100644
index 0000000..43f4230
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/langturkishmodel.py
@@ -0,0 +1,4383 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from pip._vendor.chardet.sbcharsetprober import SingleByteCharSetModel
+
+
+# 3: Positive
+# 2: Likely
+# 1: Unlikely
+# 0: Negative
+
+TURKISH_LANG_MODEL = {
+    23: {  # 'A'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 0,  # 'c'
+        12: 2,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 1,  # 'g'
+        25: 1,  # 'h'
+        3: 1,  # 'i'
+        24: 0,  # 'j'
+        10: 2,  # 'k'
+        5: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
+        7: 1,  # 'r'
+        8: 1,  # 's'
+        9: 1,  # 't'
+        14: 1,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 3,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 0,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    37: {  # 'B'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 2,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 1,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 1,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 2,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 0,  # 'k'
+        5: 0,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 2,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 1,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 0,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    47: {  # 'C'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 1,  # 'L'
+        20: 0,  # 'M'
+        46: 1,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 1,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 2,  # 'j'
+        10: 1,  # 'k'
+        5: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 2,  # 'n'
+        15: 1,  # 'o'
+        26: 0,  # 'p'
+        7: 2,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    39: {  # 'D'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 1,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 2,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 2,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 0,  # 'k'
+        5: 1,  # 'l'
+        13: 3,  # 'm'
+        4: 0,  # 'n'
+        15: 1,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 1,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 1,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 1,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    29: {  # 'E'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 1,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 0,  # 'c'
+        12: 2,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 1,  # 'g'
+        25: 0,  # 'h'
+        3: 1,  # 'i'
+        24: 1,  # 'j'
+        10: 0,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 1,  # 's'
+        9: 1,  # 't'
+        14: 1,  # 'u'
+        32: 1,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 2,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    52: {  # 'F'
+        23: 0,  # 'A'
+        37: 1,  # 'B'
+        47: 1,  # 'C'
+        39: 1,  # 'D'
+        29: 1,  # 'E'
+        52: 2,  # 'F'
+        36: 0,  # 'G'
+        45: 2,  # 'H'
+        53: 1,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 1,  # 'N'
+        42: 1,  # 'O'
+        48: 2,  # 'P'
+        44: 1,  # 'R'
+        35: 1,  # 'S'
+        31: 1,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 2,  # 'Y'
+        56: 0,  # 'Z'
+        1: 0,  # 'a'
+        21: 1,  # 'b'
+        28: 1,  # 'c'
+        12: 1,  # 'd'
+        2: 0,  # 'e'
+        18: 1,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 2,  # 'i'
+        24: 1,  # 'j'
+        10: 0,  # 'k'
+        5: 0,  # 'l'
+        13: 1,  # 'm'
+        4: 2,  # 'n'
+        15: 1,  # 'o'
+        26: 0,  # 'p'
+        7: 2,  # 'r'
+        8: 1,  # 's'
+        9: 1,  # 't'
+        14: 1,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 1,  # 'y'
+        22: 1,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 2,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 2,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 2,  # 'ş'
+    },
+    36: {  # 'G'
+        23: 1,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 2,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 2,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 2,  # 'N'
+        42: 1,  # 'O'
+        48: 1,  # 'P'
+        44: 1,  # 'R'
+        35: 1,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 2,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 1,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 1,  # 'j'
+        10: 1,  # 'k'
+        5: 0,  # 'l'
+        13: 3,  # 'm'
+        4: 2,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 0,  # 'r'
+        8: 1,  # 's'
+        9: 1,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 1,  # 'x'
+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 2,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 1,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 2,  # 'ı'
+        40: 2,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    45: {  # 'H'
+        23: 0,  # 'A'
+        37: 1,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 2,  # 'G'
+        45: 1,  # 'H'
+        53: 1,  # 'I'
+        60: 0,  # 'J'
+        16: 2,  # 'K'
+        49: 1,  # 'L'
+        20: 0,  # 'M'
+        46: 1,  # 'N'
+        42: 1,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 2,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 2,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 2,  # 'i'
+        24: 0,  # 'j'
+        10: 1,  # 'k'
+        5: 0,  # 'l'
+        13: 2,  # 'm'
+        4: 0,  # 'n'
+        15: 1,  # 'o'
+        26: 1,  # 'p'
+        7: 1,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 2,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 0,  # 'ı'
+        40: 2,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    53: {  # 'I'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 2,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 2,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 2,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 0,  # 'k'
+        5: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 0,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 2,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 0,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    60: {  # 'J'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 0,  # 'a'
+        21: 1,  # 'b'
+        28: 0,  # 'c'
+        12: 1,  # 'd'
+        2: 0,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 1,  # 'i'
+        24: 0,  # 'j'
+        10: 0,  # 'k'
+        5: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 1,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 1,  # 's'
+        9: 0,  # 't'
+        14: 0,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 0,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    16: {  # 'K'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 3,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 2,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 2,  # 'a'
+        21: 3,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 1,  # 'e'
+        18: 3,  # 'f'
+        27: 3,  # 'g'
+        25: 3,  # 'h'
+        3: 3,  # 'i'
+        24: 2,  # 'j'
+        10: 3,  # 'k'
+        5: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 0,  # 'u'
+        32: 3,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 2,  # 'y'
+        22: 1,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 2,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    49: {  # 'L'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 2,  # 'E'
+        52: 0,  # 'F'
+        36: 1,  # 'G'
+        45: 1,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 2,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 0,  # 'a'
+        21: 3,  # 'b'
+        28: 0,  # 'c'
+        12: 2,  # 'd'
+        2: 0,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 2,  # 'i'
+        24: 0,  # 'j'
+        10: 1,  # 'k'
+        5: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 2,  # 'n'
+        15: 1,  # 'o'
+        26: 1,  # 'p'
+        7: 1,  # 'r'
+        8: 1,  # 's'
+        9: 1,  # 't'
+        14: 0,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 2,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 2,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 1,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    20: {  # 'M'
+        23: 1,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 1,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 2,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 1,  # 'g'
+        25: 1,  # 'h'
+        3: 2,  # 'i'
+        24: 2,  # 'j'
+        10: 2,  # 'k'
+        5: 2,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 3,  # 'r'
+        8: 0,  # 's'
+        9: 2,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 2,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 3,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    46: {  # 'N'
+        23: 0,  # 'A'
+        37: 1,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 1,  # 'G'
+        45: 1,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 2,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 1,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 1,  # 'R'
+        35: 1,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 2,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 1,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 2,  # 'j'
+        10: 1,  # 'k'
+        5: 1,  # 'l'
+        13: 3,  # 'm'
+        4: 2,  # 'n'
+        15: 1,  # 'o'
+        26: 1,  # 'p'
+        7: 1,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 1,  # 'x'
+        11: 1,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 2,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    42: {  # 'O'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 0,  # 'G'
+        45: 1,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 2,  # 'K'
+        49: 1,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 2,  # 'P'
+        44: 1,  # 'R'
+        35: 1,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 2,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 0,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 0,  # 'n'
+        15: 1,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 2,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 2,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 2,  # 'İ'
+        6: 1,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    48: {  # 'P'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 2,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 1,  # 'G'
+        45: 1,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 2,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 1,  # 'N'
+        42: 1,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 1,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 2,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 1,  # 'k'
+        5: 0,  # 'l'
+        13: 2,  # 'm'
+        4: 0,  # 'n'
+        15: 2,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 2,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 2,  # 'x'
+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 2,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 2,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 0,  # 'ı'
+        40: 2,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    44: {  # 'R'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 1,  # 'b'
+        28: 1,  # 'c'
+        12: 0,  # 'd'
+        2: 2,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 1,  # 'k'
+        5: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 0,  # 'n'
+        15: 1,  # 'o'
+        26: 0,  # 'p'
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+        9: 0,  # 't'
+        14: 2,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 1,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 1,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    35: {  # 'S'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 1,  # 'G'
+        45: 1,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 1,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 1,  # 'k'
+        5: 1,  # 'l'
+        13: 2,  # 'm'
+        4: 1,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 0,  # 's'
+        9: 1,  # 't'
+        14: 2,  # 'u'
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+        22: 1,  # 'z'
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+        54: 2,  # 'Ç'
+        50: 2,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 3,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 2,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    31: {  # 'T'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 2,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 2,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 2,  # 'b'
+        28: 0,  # 'c'
+        12: 1,  # 'd'
+        2: 3,  # 'e'
+        18: 2,  # 'f'
+        27: 2,  # 'g'
+        25: 0,  # 'h'
+        3: 1,  # 'i'
+        24: 1,  # 'j'
+        10: 2,  # 'k'
+        5: 2,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 2,  # 'p'
+        7: 2,  # 'r'
+        8: 0,  # 's'
+        9: 2,  # 't'
+        14: 2,  # 'u'
+        32: 1,  # 'v'
+        57: 1,  # 'w'
+        58: 1,  # 'x'
+        11: 2,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 1,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    51: {  # 'U'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 1,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 1,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 1,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 1,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 2,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 1,  # 'k'
+        5: 1,  # 'l'
+        13: 3,  # 'm'
+        4: 2,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 0,  # 'r'
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+        9: 0,  # 't'
+        14: 2,  # 'u'
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+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    38: {  # 'V'
+        23: 1,  # 'A'
+        37: 1,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 3,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 1,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
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+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
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+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 0,  # 'k'
+        5: 2,  # 'l'
+        13: 2,  # 'm'
+        4: 0,  # 'n'
+        15: 2,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 0,  # 's'
+        9: 1,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 1,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 1,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 3,  # 'ı'
+        40: 2,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    62: {  # 'W'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
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+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
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+        3: 0,  # 'i'
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+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 0,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    43: {  # 'Y'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 0,  # 'G'
+        45: 1,  # 'H'
+        53: 1,  # 'I'
+        60: 0,  # 'J'
+        16: 2,  # 'K'
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+        20: 0,  # 'M'
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+        44: 1,  # 'R'
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+        1: 3,  # 'a'
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+        3: 0,  # 'i'
+        24: 1,  # 'j'
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+        22: 2,  # 'z'
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+        54: 1,  # 'Ç'
+        50: 2,  # 'Ö'
+        55: 1,  # 'Ü'
+        59: 1,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 0,  # 'ı'
+        40: 2,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    56: {  # 'Z'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
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+        36: 0,  # 'G'
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+        1: 2,  # 'a'
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+        12: 0,  # 'd'
+        2: 2,  # 'e'
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+        3: 2,  # 'i'
+        24: 1,  # 'j'
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+        13: 1,  # 'm'
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+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 1,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 1,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    1: {  # 'a'
+        23: 3,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 3,  # 'E'
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+        36: 1,  # 'G'
+        45: 1,  # 'H'
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+        60: 0,  # 'J'
+        16: 0,  # 'K'
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+        20: 3,  # 'M'
+        46: 1,  # 'N'
+        42: 0,  # 'O'
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+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 3,  # 'T'
+        51: 0,  # 'U'
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+        1: 2,  # 'a'
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+        12: 3,  # 'd'
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+        3: 3,  # 'i'
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+        13: 2,  # 'm'
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+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 1,  # 'î'
+        34: 1,  # 'ö'
+        17: 3,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    21: {  # 'b'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 1,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 2,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 1,  # 'T'
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+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
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+        12: 3,  # 'd'
+        2: 3,  # 'e'
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+        27: 3,  # 'g'
+        25: 1,  # 'h'
+        3: 3,  # 'i'
+        24: 2,  # 'j'
+        10: 3,  # 'k'
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+        13: 3,  # 'm'
+        4: 3,  # 'n'
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+        14: 2,  # 'u'
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+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
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+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    28: {  # 'c'
+        23: 0,  # 'A'
+        37: 1,  # 'B'
+        47: 1,  # 'C'
+        39: 1,  # 'D'
+        29: 2,  # 'E'
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+        36: 2,  # 'G'
+        45: 2,  # 'H'
+        53: 1,  # 'I'
+        60: 0,  # 'J'
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+        20: 2,  # 'M'
+        46: 1,  # 'N'
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+        44: 1,  # 'R'
+        35: 1,  # 'S'
+        31: 2,  # 'T'
+        51: 2,  # 'U'
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+        62: 0,  # 'W'
+        43: 3,  # 'Y'
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+        1: 1,  # 'a'
+        21: 1,  # 'b'
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+        12: 2,  # 'd'
+        2: 1,  # 'e'
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+        27: 2,  # 'g'
+        25: 2,  # 'h'
+        3: 3,  # 'i'
+        24: 1,  # 'j'
+        10: 3,  # 'k'
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+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        15: 2,  # 'o'
+        26: 2,  # 'p'
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+        14: 1,  # 'u'
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+        57: 1,  # 'w'
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+        22: 1,  # 'z'
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+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 1,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 1,  # 'î'
+        34: 2,  # 'ö'
+        17: 2,  # 'ü'
+        30: 2,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 2,  # 'ş'
+    },
+    12: {  # 'd'
+        23: 1,  # 'A'
+        37: 0,  # 'B'
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+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 2,  # 'J'
+        16: 3,  # 'K'
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+        20: 3,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 1,  # 'S'
+        31: 1,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 2,  # 'b'
+        28: 1,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 1,  # 'f'
+        27: 3,  # 'g'
+        25: 3,  # 'h'
+        3: 2,  # 'i'
+        24: 3,  # 'j'
+        10: 2,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 1,  # 'o'
+        26: 2,  # 'p'
+        7: 3,  # 'r'
+        8: 2,  # 's'
+        9: 2,  # 't'
+        14: 3,  # 'u'
+        32: 1,  # 'v'
+        57: 0,  # 'w'
+        58: 1,  # 'x'
+        11: 3,  # 'y'
+        22: 1,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 1,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    2: {  # 'e'
+        23: 2,  # 'A'
+        37: 0,  # 'B'
+        47: 2,  # 'C'
+        39: 0,  # 'D'
+        29: 3,  # 'E'
+        52: 1,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 1,  # 'K'
+        49: 0,  # 'L'
+        20: 3,  # 'M'
+        46: 1,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 1,  # 'R'
+        35: 0,  # 'S'
+        31: 3,  # 'T'
+        51: 0,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 3,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 2,  # 'e'
+        18: 3,  # 'f'
+        27: 3,  # 'g'
+        25: 3,  # 'h'
+        3: 3,  # 'i'
+        24: 3,  # 'j'
+        10: 3,  # 'k'
+        5: 0,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        15: 1,  # 'o'
+        26: 3,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 3,  # 'v'
+        57: 2,  # 'w'
+        58: 0,  # 'x'
+        11: 3,  # 'y'
+        22: 1,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 3,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    18: {  # 'f'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 2,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 2,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 1,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 2,  # 'f'
+        27: 1,  # 'g'
+        25: 1,  # 'h'
+        3: 1,  # 'i'
+        24: 1,  # 'j'
+        10: 1,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 2,  # 'p'
+        7: 1,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 1,  # 'u'
+        32: 2,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 1,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 1,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 1,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    27: {  # 'g'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 1,  # 'S'
+        31: 1,  # 'T'
+        51: 0,  # 'U'
+        38: 2,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 1,  # 'b'
+        28: 0,  # 'c'
+        12: 1,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 2,  # 'g'
+        25: 1,  # 'h'
+        3: 2,  # 'i'
+        24: 3,  # 'j'
+        10: 2,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 2,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 2,  # 'r'
+        8: 2,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 1,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 1,  # 'y'
+        22: 0,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    25: {  # 'h'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 2,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 0,  # 'c'
+        12: 2,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 1,  # 'g'
+        25: 2,  # 'h'
+        3: 2,  # 'i'
+        24: 3,  # 'j'
+        10: 3,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 1,  # 'o'
+        26: 1,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 2,  # 't'
+        14: 3,  # 'u'
+        32: 2,  # 'v'
+        57: 1,  # 'w'
+        58: 0,  # 'x'
+        11: 1,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    3: {  # 'i'
+        23: 2,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 3,  # 'M'
+        46: 0,  # 'N'
+        42: 1,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 1,  # 'S'
+        31: 2,  # 'T'
+        51: 0,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 2,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 2,  # 'f'
+        27: 3,  # 'g'
+        25: 1,  # 'h'
+        3: 3,  # 'i'
+        24: 2,  # 'j'
+        10: 3,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 1,  # 'o'
+        26: 3,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 2,  # 'v'
+        57: 1,  # 'w'
+        58: 1,  # 'x'
+        11: 3,  # 'y'
+        22: 1,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 1,  # 'Ü'
+        59: 0,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 3,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    24: {  # 'j'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 2,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 1,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 1,  # 'Z'
+        1: 3,  # 'a'
+        21: 1,  # 'b'
+        28: 1,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 2,  # 'f'
+        27: 1,  # 'g'
+        25: 1,  # 'h'
+        3: 2,  # 'i'
+        24: 1,  # 'j'
+        10: 2,  # 'k'
+        5: 2,  # 'l'
+        13: 3,  # 'm'
+        4: 2,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 2,  # 'r'
+        8: 3,  # 's'
+        9: 2,  # 't'
+        14: 3,  # 'u'
+        32: 2,  # 'v'
+        57: 0,  # 'w'
+        58: 2,  # 'x'
+        11: 1,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 1,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    10: {  # 'k'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 3,  # 'T'
+        51: 0,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 1,  # 'Z'
+        1: 3,  # 'a'
+        21: 2,  # 'b'
+        28: 0,  # 'c'
+        12: 2,  # 'd'
+        2: 3,  # 'e'
+        18: 1,  # 'f'
+        27: 2,  # 'g'
+        25: 2,  # 'h'
+        3: 3,  # 'i'
+        24: 2,  # 'j'
+        10: 2,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 3,  # 'p'
+        7: 2,  # 'r'
+        8: 2,  # 's'
+        9: 2,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 1,  # 'x'
+        11: 3,  # 'y'
+        22: 0,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 3,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 3,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    5: {  # 'l'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 3,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 1,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 0,  # 'a'
+        21: 3,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 1,  # 'e'
+        18: 3,  # 'f'
+        27: 3,  # 'g'
+        25: 2,  # 'h'
+        3: 3,  # 'i'
+        24: 2,  # 'j'
+        10: 3,  # 'k'
+        5: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 2,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 2,  # 'u'
+        32: 2,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 3,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 2,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    13: {  # 'm'
+        23: 1,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 3,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 3,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 3,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 2,  # 'a'
+        21: 3,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 2,  # 'e'
+        18: 3,  # 'f'
+        27: 3,  # 'g'
+        25: 3,  # 'h'
+        3: 3,  # 'i'
+        24: 3,  # 'j'
+        10: 3,  # 'k'
+        5: 0,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        15: 1,  # 'o'
+        26: 2,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 2,  # 'u'
+        32: 2,  # 'v'
+        57: 1,  # 'w'
+        58: 0,  # 'x'
+        11: 3,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 3,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    4: {  # 'n'
+        23: 1,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 1,  # 'H'
+        53: 0,  # 'I'
+        60: 2,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 3,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 2,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 2,  # 'b'
+        28: 1,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 1,  # 'f'
+        27: 2,  # 'g'
+        25: 3,  # 'h'
+        3: 2,  # 'i'
+        24: 2,  # 'j'
+        10: 3,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 1,  # 'o'
+        26: 3,  # 'p'
+        7: 2,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 2,  # 'v'
+        57: 0,  # 'w'
+        58: 2,  # 'x'
+        11: 3,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 2,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 1,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    15: {  # 'o'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 1,  # 'G'
+        45: 1,  # 'H'
+        53: 1,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 2,  # 'L'
+        20: 0,  # 'M'
+        46: 2,  # 'N'
+        42: 1,  # 'O'
+        48: 2,  # 'P'
+        44: 1,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 1,  # 'i'
+        24: 2,  # 'j'
+        10: 1,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 2,  # 'n'
+        15: 2,  # 'o'
+        26: 0,  # 'p'
+        7: 1,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 2,  # 'x'
+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 2,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 3,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 2,  # 'ğ'
+        41: 2,  # 'İ'
+        6: 3,  # 'ı'
+        40: 2,  # 'Ş'
+        19: 2,  # 'ş'
+    },
+    26: {  # 'p'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 1,  # 'b'
+        28: 0,  # 'c'
+        12: 1,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 1,  # 'g'
+        25: 1,  # 'h'
+        3: 2,  # 'i'
+        24: 3,  # 'j'
+        10: 1,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 2,  # 'n'
+        15: 0,  # 'o'
+        26: 2,  # 'p'
+        7: 2,  # 'r'
+        8: 1,  # 's'
+        9: 1,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 1,  # 'x'
+        11: 1,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 3,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 1,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    7: {  # 'r'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 1,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 2,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 2,  # 'T'
+        51: 1,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 1,  # 'Z'
+        1: 3,  # 'a'
+        21: 1,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 2,  # 'g'
+        25: 3,  # 'h'
+        3: 2,  # 'i'
+        24: 2,  # 'j'
+        10: 3,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 2,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 2,  # 'v'
+        57: 0,  # 'w'
+        58: 1,  # 'x'
+        11: 2,  # 'y'
+        22: 0,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 3,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    8: {  # 's'
+        23: 1,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 1,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 3,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 2,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 1,  # 'Z'
+        1: 3,  # 'a'
+        21: 2,  # 'b'
+        28: 1,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 2,  # 'g'
+        25: 2,  # 'h'
+        3: 2,  # 'i'
+        24: 3,  # 'j'
+        10: 3,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 3,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 2,  # 'v'
+        57: 0,  # 'w'
+        58: 1,  # 'x'
+        11: 2,  # 'y'
+        22: 1,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 2,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    9: {  # 't'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 2,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 1,  # 'Z'
+        1: 3,  # 'a'
+        21: 3,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 2,  # 'f'
+        27: 2,  # 'g'
+        25: 2,  # 'h'
+        3: 2,  # 'i'
+        24: 2,  # 'j'
+        10: 3,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 2,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 3,  # 'v'
+        57: 0,  # 'w'
+        58: 2,  # 'x'
+        11: 2,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 3,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 2,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    14: {  # 'u'
+        23: 3,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 3,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 1,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 3,  # 'M'
+        46: 2,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 3,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 2,  # 'Z'
+        1: 2,  # 'a'
+        21: 3,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 2,  # 'e'
+        18: 2,  # 'f'
+        27: 3,  # 'g'
+        25: 3,  # 'h'
+        3: 3,  # 'i'
+        24: 2,  # 'j'
+        10: 3,  # 'k'
+        5: 0,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 3,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 2,  # 'v'
+        57: 2,  # 'w'
+        58: 0,  # 'x'
+        11: 3,  # 'y'
+        22: 0,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 3,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    32: {  # 'v'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 0,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 1,  # 'j'
+        10: 1,  # 'k'
+        5: 3,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 1,  # 'r'
+        8: 2,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 1,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
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+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 1,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    57: {  # 'w'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
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+        1: 1,  # 'a'
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+        12: 0,  # 'd'
+        2: 2,  # 'e'
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+        27: 0,  # 'g'
+        25: 1,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 1,  # 'k'
+        5: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 1,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
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+        14: 1,  # 'u'
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+        57: 2,  # 'w'
+        58: 0,  # 'x'
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+        22: 0,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
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+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 1,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 0,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    58: {  # 'x'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 1,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 0,  # 'a'
+        21: 1,  # 'b'
+        28: 0,  # 'c'
+        12: 2,  # 'd'
+        2: 1,  # 'e'
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+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 2,  # 'i'
+        24: 2,  # 'j'
+        10: 1,  # 'k'
+        5: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 2,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
+        7: 1,  # 'r'
+        8: 2,  # 's'
+        9: 1,  # 't'
+        14: 0,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 2,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 1,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    11: {  # 'y'
+        23: 1,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 1,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 1,  # 'Z'
+        1: 3,  # 'a'
+        21: 1,  # 'b'
+        28: 0,  # 'c'
+        12: 2,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 2,  # 'g'
+        25: 2,  # 'h'
+        3: 2,  # 'i'
+        24: 1,  # 'j'
+        10: 2,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 2,  # 'r'
+        8: 1,  # 's'
+        9: 2,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 1,  # 'x'
+        11: 3,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 3,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 2,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    22: {  # 'z'
+        23: 2,  # 'A'
+        37: 2,  # 'B'
+        47: 1,  # 'C'
+        39: 2,  # 'D'
+        29: 3,  # 'E'
+        52: 1,  # 'F'
+        36: 2,  # 'G'
+        45: 2,  # 'H'
+        53: 1,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 3,  # 'M'
+        46: 2,  # 'N'
+        42: 2,  # 'O'
+        48: 2,  # 'P'
+        44: 1,  # 'R'
+        35: 1,  # 'S'
+        31: 3,  # 'T'
+        51: 2,  # 'U'
+        38: 2,  # 'V'
+        62: 0,  # 'W'
+        43: 2,  # 'Y'
+        56: 1,  # 'Z'
+        1: 1,  # 'a'
+        21: 2,  # 'b'
+        28: 1,  # 'c'
+        12: 2,  # 'd'
+        2: 2,  # 'e'
+        18: 3,  # 'f'
+        27: 2,  # 'g'
+        25: 2,  # 'h'
+        3: 3,  # 'i'
+        24: 2,  # 'j'
+        10: 3,  # 'k'
+        5: 0,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        15: 2,  # 'o'
+        26: 2,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 0,  # 'u'
+        32: 2,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 3,  # 'y'
+        22: 2,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 2,  # 'Ü'
+        59: 1,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 2,  # 'ö'
+        17: 2,  # 'ü'
+        30: 2,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 3,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 2,  # 'ş'
+    },
+    63: {  # '·'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 0,  # 'a'
+        21: 0,  # 'b'
+        28: 0,  # 'c'
+        12: 0,  # 'd'
+        2: 1,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 0,  # 'k'
+        5: 0,  # 'l'
+        13: 2,  # 'm'
+        4: 0,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 2,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 0,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    54: {  # 'Ç'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 1,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 1,  # 'G'
+        45: 1,  # 'H'
+        53: 1,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 1,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 2,  # 'Y'
+        56: 0,  # 'Z'
+        1: 0,  # 'a'
+        21: 1,  # 'b'
+        28: 0,  # 'c'
+        12: 1,  # 'd'
+        2: 0,  # 'e'
+        18: 0,  # 'f'
+        27: 1,  # 'g'
+        25: 0,  # 'h'
+        3: 3,  # 'i'
+        24: 0,  # 'j'
+        10: 1,  # 'k'
+        5: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 2,  # 'n'
+        15: 1,  # 'o'
+        26: 0,  # 'p'
+        7: 2,  # 'r'
+        8: 0,  # 's'
+        9: 1,  # 't'
+        14: 0,  # 'u'
+        32: 2,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 2,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    50: {  # 'Ö'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 1,  # 'D'
+        29: 2,  # 'E'
+        52: 0,  # 'F'
+        36: 1,  # 'G'
+        45: 2,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 1,  # 'N'
+        42: 2,  # 'O'
+        48: 2,  # 'P'
+        44: 1,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 2,  # 'Y'
+        56: 0,  # 'Z'
+        1: 0,  # 'a'
+        21: 2,  # 'b'
+        28: 1,  # 'c'
+        12: 2,  # 'd'
+        2: 0,  # 'e'
+        18: 1,  # 'f'
+        27: 1,  # 'g'
+        25: 1,  # 'h'
+        3: 2,  # 'i'
+        24: 0,  # 'j'
+        10: 2,  # 'k'
+        5: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 3,  # 'n'
+        15: 2,  # 'o'
+        26: 2,  # 'p'
+        7: 3,  # 'r'
+        8: 1,  # 's'
+        9: 2,  # 't'
+        14: 0,  # 'u'
+        32: 1,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 1,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 2,  # 'ö'
+        17: 2,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    55: {  # 'Ü'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 1,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 1,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 2,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 2,  # 'e'
+        18: 0,  # 'f'
+        27: 1,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 0,  # 'k'
+        5: 1,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
+        15: 0,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 0,  # 's'
+        9: 1,  # 't'
+        14: 2,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 1,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 1,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 0,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    59: {  # 'â'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 1,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 1,  # 'K'
+        49: 0,  # 'L'
+        20: 0,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 2,  # 'a'
+        21: 0,  # 'b'
+        28: 0,  # 'c'
+        12: 0,  # 'd'
+        2: 2,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 0,  # 'j'
+        10: 0,  # 'k'
+        5: 0,  # 'l'
+        13: 2,  # 'm'
+        4: 0,  # 'n'
+        15: 1,  # 'o'
+        26: 0,  # 'p'
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+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 2,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 1,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 0,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 1,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    33: {  # 'ç'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 3,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 2,  # 'T'
+        51: 0,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 0,  # 'Z'
+        1: 0,  # 'a'
+        21: 3,  # 'b'
+        28: 0,  # 'c'
+        12: 2,  # 'd'
+        2: 0,  # 'e'
+        18: 2,  # 'f'
+        27: 1,  # 'g'
+        25: 3,  # 'h'
+        3: 3,  # 'i'
+        24: 0,  # 'j'
+        10: 3,  # 'k'
+        5: 0,  # 'l'
+        13: 0,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 3,  # 'r'
+        8: 2,  # 's'
+        9: 3,  # 't'
+        14: 0,  # 'u'
+        32: 2,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
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+        22: 0,  # 'z'
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+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 1,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    61: {  # 'î'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
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+        36: 0,  # 'G'
+        45: 0,  # 'H'
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+        60: 0,  # 'J'
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+        46: 0,  # 'N'
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+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 0,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 1,  # 'Z'
+        1: 2,  # 'a'
+        21: 0,  # 'b'
+        28: 0,  # 'c'
+        12: 0,  # 'd'
+        2: 2,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 1,  # 'j'
+        10: 0,  # 'k'
+        5: 0,  # 'l'
+        13: 1,  # 'm'
+        4: 1,  # 'n'
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+        26: 0,  # 'p'
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+        9: 0,  # 't'
+        14: 1,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
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+        22: 1,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 1,  # 'î'
+        34: 0,  # 'ö'
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+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 1,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    34: {  # 'ö'
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+        37: 1,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 1,  # 'G'
+        45: 1,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 1,  # 'L'
+        20: 0,  # 'M'
+        46: 1,  # 'N'
+        42: 1,  # 'O'
+        48: 2,  # 'P'
+        44: 1,  # 'R'
+        35: 1,  # 'S'
+        31: 1,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 1,  # 'Z'
+        1: 3,  # 'a'
+        21: 1,  # 'b'
+        28: 2,  # 'c'
+        12: 1,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 2,  # 'g'
+        25: 2,  # 'h'
+        3: 1,  # 'i'
+        24: 2,  # 'j'
+        10: 1,  # 'k'
+        5: 2,  # 'l'
+        13: 3,  # 'm'
+        4: 2,  # 'n'
+        15: 2,  # 'o'
+        26: 0,  # 'p'
+        7: 0,  # 'r'
+        8: 3,  # 's'
+        9: 1,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 1,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 2,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 2,  # 'ö'
+        17: 0,  # 'ü'
+        30: 2,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 1,  # 'ı'
+        40: 2,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    17: {  # 'ü'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 0,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 1,  # 'J'
+        16: 1,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 0,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 1,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 0,  # 'Y'
+        56: 1,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 0,  # 'c'
+        12: 1,  # 'd'
+        2: 3,  # 'e'
+        18: 1,  # 'f'
+        27: 2,  # 'g'
+        25: 0,  # 'h'
+        3: 1,  # 'i'
+        24: 1,  # 'j'
+        10: 2,  # 'k'
+        5: 3,  # 'l'
+        13: 2,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 2,  # 'p'
+        7: 2,  # 'r'
+        8: 3,  # 's'
+        9: 2,  # 't'
+        14: 3,  # 'u'
+        32: 1,  # 'v'
+        57: 1,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 2,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    30: {  # 'ğ'
+        23: 0,  # 'A'
+        37: 2,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 1,  # 'G'
+        45: 0,  # 'H'
+        53: 1,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 1,  # 'M'
+        46: 2,  # 'N'
+        42: 2,  # 'O'
+        48: 1,  # 'P'
+        44: 1,  # 'R'
+        35: 0,  # 'S'
+        31: 1,  # 'T'
+        51: 0,  # 'U'
+        38: 2,  # 'V'
+        62: 0,  # 'W'
+        43: 2,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 0,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 2,  # 'e'
+        18: 0,  # 'f'
+        27: 0,  # 'g'
+        25: 0,  # 'h'
+        3: 0,  # 'i'
+        24: 3,  # 'j'
+        10: 1,  # 'k'
+        5: 2,  # 'l'
+        13: 3,  # 'm'
+        4: 0,  # 'n'
+        15: 1,  # 'o'
+        26: 0,  # 'p'
+        7: 1,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 2,  # 'Ç'
+        50: 2,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 0,  # 'î'
+        34: 2,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 2,  # 'İ'
+        6: 2,  # 'ı'
+        40: 2,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    41: {  # 'İ'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 1,  # 'D'
+        29: 1,  # 'E'
+        52: 0,  # 'F'
+        36: 2,  # 'G'
+        45: 2,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 1,  # 'N'
+        42: 1,  # 'O'
+        48: 2,  # 'P'
+        44: 0,  # 'R'
+        35: 1,  # 'S'
+        31: 1,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 2,  # 'Y'
+        56: 0,  # 'Z'
+        1: 1,  # 'a'
+        21: 2,  # 'b'
+        28: 1,  # 'c'
+        12: 2,  # 'd'
+        2: 1,  # 'e'
+        18: 0,  # 'f'
+        27: 3,  # 'g'
+        25: 2,  # 'h'
+        3: 2,  # 'i'
+        24: 2,  # 'j'
+        10: 2,  # 'k'
+        5: 0,  # 'l'
+        13: 1,  # 'm'
+        4: 3,  # 'n'
+        15: 1,  # 'o'
+        26: 1,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 2,  # 't'
+        14: 0,  # 'u'
+        32: 0,  # 'v'
+        57: 1,  # 'w'
+        58: 0,  # 'x'
+        11: 2,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 1,  # 'Ü'
+        59: 1,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 1,  # 'ö'
+        17: 1,  # 'ü'
+        30: 2,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+    6: {  # 'ı'
+        23: 2,  # 'A'
+        37: 0,  # 'B'
+        47: 0,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 0,  # 'F'
+        36: 1,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 2,  # 'J'
+        16: 3,  # 'K'
+        49: 0,  # 'L'
+        20: 3,  # 'M'
+        46: 1,  # 'N'
+        42: 0,  # 'O'
+        48: 0,  # 'P'
+        44: 0,  # 'R'
+        35: 0,  # 'S'
+        31: 2,  # 'T'
+        51: 0,  # 'U'
+        38: 0,  # 'V'
+        62: 0,  # 'W'
+        43: 2,  # 'Y'
+        56: 1,  # 'Z'
+        1: 3,  # 'a'
+        21: 2,  # 'b'
+        28: 1,  # 'c'
+        12: 3,  # 'd'
+        2: 3,  # 'e'
+        18: 3,  # 'f'
+        27: 3,  # 'g'
+        25: 2,  # 'h'
+        3: 3,  # 'i'
+        24: 3,  # 'j'
+        10: 3,  # 'k'
+        5: 3,  # 'l'
+        13: 3,  # 'm'
+        4: 3,  # 'n'
+        15: 0,  # 'o'
+        26: 3,  # 'p'
+        7: 3,  # 'r'
+        8: 3,  # 's'
+        9: 3,  # 't'
+        14: 3,  # 'u'
+        32: 3,  # 'v'
+        57: 1,  # 'w'
+        58: 1,  # 'x'
+        11: 3,  # 'y'
+        22: 0,  # 'z'
+        63: 1,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 2,  # 'ç'
+        61: 0,  # 'î'
+        34: 0,  # 'ö'
+        17: 3,  # 'ü'
+        30: 0,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 3,  # 'ı'
+        40: 0,  # 'Ş'
+        19: 0,  # 'ş'
+    },
+    40: {  # 'Ş'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 1,  # 'D'
+        29: 1,  # 'E'
+        52: 0,  # 'F'
+        36: 1,  # 'G'
+        45: 2,  # 'H'
+        53: 1,  # 'I'
+        60: 0,  # 'J'
+        16: 0,  # 'K'
+        49: 0,  # 'L'
+        20: 2,  # 'M'
+        46: 1,  # 'N'
+        42: 1,  # 'O'
+        48: 2,  # 'P'
+        44: 2,  # 'R'
+        35: 1,  # 'S'
+        31: 1,  # 'T'
+        51: 0,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 2,  # 'Y'
+        56: 1,  # 'Z'
+        1: 0,  # 'a'
+        21: 2,  # 'b'
+        28: 0,  # 'c'
+        12: 2,  # 'd'
+        2: 0,  # 'e'
+        18: 3,  # 'f'
+        27: 0,  # 'g'
+        25: 2,  # 'h'
+        3: 3,  # 'i'
+        24: 2,  # 'j'
+        10: 1,  # 'k'
+        5: 0,  # 'l'
+        13: 1,  # 'm'
+        4: 3,  # 'n'
+        15: 2,  # 'o'
+        26: 0,  # 'p'
+        7: 3,  # 'r'
+        8: 2,  # 's'
+        9: 2,  # 't'
+        14: 1,  # 'u'
+        32: 3,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 2,  # 'y'
+        22: 0,  # 'z'
+        63: 0,  # '·'
+        54: 0,  # 'Ç'
+        50: 0,  # 'Ö'
+        55: 1,  # 'Ü'
+        59: 0,  # 'â'
+        33: 0,  # 'ç'
+        61: 0,  # 'î'
+        34: 2,  # 'ö'
+        17: 1,  # 'ü'
+        30: 2,  # 'ğ'
+        41: 0,  # 'İ'
+        6: 2,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 2,  # 'ş'
+    },
+    19: {  # 'ş'
+        23: 0,  # 'A'
+        37: 0,  # 'B'
+        47: 1,  # 'C'
+        39: 0,  # 'D'
+        29: 0,  # 'E'
+        52: 2,  # 'F'
+        36: 1,  # 'G'
+        45: 0,  # 'H'
+        53: 0,  # 'I'
+        60: 0,  # 'J'
+        16: 3,  # 'K'
+        49: 2,  # 'L'
+        20: 0,  # 'M'
+        46: 1,  # 'N'
+        42: 1,  # 'O'
+        48: 1,  # 'P'
+        44: 1,  # 'R'
+        35: 1,  # 'S'
+        31: 0,  # 'T'
+        51: 1,  # 'U'
+        38: 1,  # 'V'
+        62: 0,  # 'W'
+        43: 1,  # 'Y'
+        56: 0,  # 'Z'
+        1: 3,  # 'a'
+        21: 1,  # 'b'
+        28: 2,  # 'c'
+        12: 0,  # 'd'
+        2: 3,  # 'e'
+        18: 0,  # 'f'
+        27: 2,  # 'g'
+        25: 1,  # 'h'
+        3: 1,  # 'i'
+        24: 0,  # 'j'
+        10: 2,  # 'k'
+        5: 2,  # 'l'
+        13: 3,  # 'm'
+        4: 0,  # 'n'
+        15: 0,  # 'o'
+        26: 1,  # 'p'
+        7: 3,  # 'r'
+        8: 0,  # 's'
+        9: 0,  # 't'
+        14: 3,  # 'u'
+        32: 0,  # 'v'
+        57: 0,  # 'w'
+        58: 0,  # 'x'
+        11: 0,  # 'y'
+        22: 2,  # 'z'
+        63: 0,  # '·'
+        54: 1,  # 'Ç'
+        50: 2,  # 'Ö'
+        55: 0,  # 'Ü'
+        59: 0,  # 'â'
+        33: 1,  # 'ç'
+        61: 1,  # 'î'
+        34: 2,  # 'ö'
+        17: 0,  # 'ü'
+        30: 1,  # 'ğ'
+        41: 1,  # 'İ'
+        6: 1,  # 'ı'
+        40: 1,  # 'Ş'
+        19: 1,  # 'ş'
+    },
+}
+
+# 255: Undefined characters that did not exist in training text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+# 251: Control characters
+
+# Character Mapping Table(s):
+ISO_8859_9_TURKISH_CHAR_TO_ORDER = {
+     0: 255,  # '\x00'
+     1: 255,  # '\x01'
+     2: 255,  # '\x02'
+     3: 255,  # '\x03'
+     4: 255,  # '\x04'
+     5: 255,  # '\x05'
+     6: 255,  # '\x06'
+     7: 255,  # '\x07'
+     8: 255,  # '\x08'
+     9: 255,  # '\t'
+     10: 255,  # '\n'
+     11: 255,  # '\x0b'
+     12: 255,  # '\x0c'
+     13: 255,  # '\r'
+     14: 255,  # '\x0e'
+     15: 255,  # '\x0f'
+     16: 255,  # '\x10'
+     17: 255,  # '\x11'
+     18: 255,  # '\x12'
+     19: 255,  # '\x13'
+     20: 255,  # '\x14'
+     21: 255,  # '\x15'
+     22: 255,  # '\x16'
+     23: 255,  # '\x17'
+     24: 255,  # '\x18'
+     25: 255,  # '\x19'
+     26: 255,  # '\x1a'
+     27: 255,  # '\x1b'
+     28: 255,  # '\x1c'
+     29: 255,  # '\x1d'
+     30: 255,  # '\x1e'
+     31: 255,  # '\x1f'
+     32: 255,  # ' '
+     33: 255,  # '!'
+     34: 255,  # '"'
+     35: 255,  # '#'
+     36: 255,  # '$'
+     37: 255,  # '%'
+     38: 255,  # '&'
+     39: 255,  # "'"
+     40: 255,  # '('
+     41: 255,  # ')'
+     42: 255,  # '*'
+     43: 255,  # '+'
+     44: 255,  # ','
+     45: 255,  # '-'
+     46: 255,  # '.'
+     47: 255,  # '/'
+     48: 255,  # '0'
+     49: 255,  # '1'
+     50: 255,  # '2'
+     51: 255,  # '3'
+     52: 255,  # '4'
+     53: 255,  # '5'
+     54: 255,  # '6'
+     55: 255,  # '7'
+     56: 255,  # '8'
+     57: 255,  # '9'
+     58: 255,  # ':'
+     59: 255,  # ';'
+     60: 255,  # '<'
+     61: 255,  # '='
+     62: 255,  # '>'
+     63: 255,  # '?'
+     64: 255,  # '@'
+     65: 23,  # 'A'
+     66: 37,  # 'B'
+     67: 47,  # 'C'
+     68: 39,  # 'D'
+     69: 29,  # 'E'
+     70: 52,  # 'F'
+     71: 36,  # 'G'
+     72: 45,  # 'H'
+     73: 53,  # 'I'
+     74: 60,  # 'J'
+     75: 16,  # 'K'
+     76: 49,  # 'L'
+     77: 20,  # 'M'
+     78: 46,  # 'N'
+     79: 42,  # 'O'
+     80: 48,  # 'P'
+     81: 69,  # 'Q'
+     82: 44,  # 'R'
+     83: 35,  # 'S'
+     84: 31,  # 'T'
+     85: 51,  # 'U'
+     86: 38,  # 'V'
+     87: 62,  # 'W'
+     88: 65,  # 'X'
+     89: 43,  # 'Y'
+     90: 56,  # 'Z'
+     91: 255,  # '['
+     92: 255,  # '\\'
+     93: 255,  # ']'
+     94: 255,  # '^'
+     95: 255,  # '_'
+     96: 255,  # '`'
+     97: 1,  # 'a'
+     98: 21,  # 'b'
+     99: 28,  # 'c'
+     100: 12,  # 'd'
+     101: 2,  # 'e'
+     102: 18,  # 'f'
+     103: 27,  # 'g'
+     104: 25,  # 'h'
+     105: 3,  # 'i'
+     106: 24,  # 'j'
+     107: 10,  # 'k'
+     108: 5,  # 'l'
+     109: 13,  # 'm'
+     110: 4,  # 'n'
+     111: 15,  # 'o'
+     112: 26,  # 'p'
+     113: 64,  # 'q'
+     114: 7,  # 'r'
+     115: 8,  # 's'
+     116: 9,  # 't'
+     117: 14,  # 'u'
+     118: 32,  # 'v'
+     119: 57,  # 'w'
+     120: 58,  # 'x'
+     121: 11,  # 'y'
+     122: 22,  # 'z'
+     123: 255,  # '{'
+     124: 255,  # '|'
+     125: 255,  # '}'
+     126: 255,  # '~'
+     127: 255,  # '\x7f'
+     128: 180,  # '\x80'
+     129: 179,  # '\x81'
+     130: 178,  # '\x82'
+     131: 177,  # '\x83'
+     132: 176,  # '\x84'
+     133: 175,  # '\x85'
+     134: 174,  # '\x86'
+     135: 173,  # '\x87'
+     136: 172,  # '\x88'
+     137: 171,  # '\x89'
+     138: 170,  # '\x8a'
+     139: 169,  # '\x8b'
+     140: 168,  # '\x8c'
+     141: 167,  # '\x8d'
+     142: 166,  # '\x8e'
+     143: 165,  # '\x8f'
+     144: 164,  # '\x90'
+     145: 163,  # '\x91'
+     146: 162,  # '\x92'
+     147: 161,  # '\x93'
+     148: 160,  # '\x94'
+     149: 159,  # '\x95'
+     150: 101,  # '\x96'
+     151: 158,  # '\x97'
+     152: 157,  # '\x98'
+     153: 156,  # '\x99'
+     154: 155,  # '\x9a'
+     155: 154,  # '\x9b'
+     156: 153,  # '\x9c'
+     157: 152,  # '\x9d'
+     158: 151,  # '\x9e'
+     159: 106,  # '\x9f'
+     160: 150,  # '\xa0'
+     161: 149,  # '¡'
+     162: 148,  # '¢'
+     163: 147,  # '£'
+     164: 146,  # '¤'
+     165: 145,  # '¥'
+     166: 144,  # '¦'
+     167: 100,  # '§'
+     168: 143,  # '¨'
+     169: 142,  # '©'
+     170: 141,  # 'ª'
+     171: 140,  # '«'
+     172: 139,  # '¬'
+     173: 138,  # '\xad'
+     174: 137,  # '®'
+     175: 136,  # '¯'
+     176: 94,  # '°'
+     177: 80,  # '±'
+     178: 93,  # '²'
+     179: 135,  # '³'
+     180: 105,  # '´'
+     181: 134,  # 'µ'
+     182: 133,  # '¶'
+     183: 63,  # '·'
+     184: 132,  # '¸'
+     185: 131,  # '¹'
+     186: 130,  # 'º'
+     187: 129,  # '»'
+     188: 128,  # '¼'
+     189: 127,  # '½'
+     190: 126,  # '¾'
+     191: 125,  # '¿'
+     192: 124,  # 'À'
+     193: 104,  # 'Á'
+     194: 73,  # 'Â'
+     195: 99,  # 'Ã'
+     196: 79,  # 'Ä'
+     197: 85,  # 'Å'
+     198: 123,  # 'Æ'
+     199: 54,  # 'Ç'
+     200: 122,  # 'È'
+     201: 98,  # 'É'
+     202: 92,  # 'Ê'
+     203: 121,  # 'Ë'
+     204: 120,  # 'Ì'
+     205: 91,  # 'Í'
+     206: 103,  # 'Î'
+     207: 119,  # 'Ï'
+     208: 68,  # 'Ğ'
+     209: 118,  # 'Ñ'
+     210: 117,  # 'Ò'
+     211: 97,  # 'Ó'
+     212: 116,  # 'Ô'
+     213: 115,  # 'Õ'
+     214: 50,  # 'Ö'
+     215: 90,  # '×'
+     216: 114,  # 'Ø'
+     217: 113,  # 'Ù'
+     218: 112,  # 'Ú'
+     219: 111,  # 'Û'
+     220: 55,  # 'Ü'
+     221: 41,  # 'İ'
+     222: 40,  # 'Ş'
+     223: 86,  # 'ß'
+     224: 89,  # 'à'
+     225: 70,  # 'á'
+     226: 59,  # 'â'
+     227: 78,  # 'ã'
+     228: 71,  # 'ä'
+     229: 82,  # 'å'
+     230: 88,  # 'æ'
+     231: 33,  # 'ç'
+     232: 77,  # 'è'
+     233: 66,  # 'é'
+     234: 84,  # 'ê'
+     235: 83,  # 'ë'
+     236: 110,  # 'ì'
+     237: 75,  # 'í'
+     238: 61,  # 'î'
+     239: 96,  # 'ï'
+     240: 30,  # 'ğ'
+     241: 67,  # 'ñ'
+     242: 109,  # 'ò'
+     243: 74,  # 'ó'
+     244: 87,  # 'ô'
+     245: 102,  # 'õ'
+     246: 34,  # 'ö'
+     247: 95,  # '÷'
+     248: 81,  # 'ø'
+     249: 108,  # 'ù'
+     250: 76,  # 'ú'
+     251: 72,  # 'û'
+     252: 17,  # 'ü'
+     253: 6,  # 'ı'
+     254: 19,  # 'ş'
+     255: 107,  # 'ÿ'
+}
+
+ISO_8859_9_TURKISH_MODEL = SingleByteCharSetModel(charset_name='ISO-8859-9',
+                                                  language='Turkish',
+                                                  char_to_order_map=ISO_8859_9_TURKISH_CHAR_TO_ORDER,
+                                                  language_model=TURKISH_LANG_MODEL,
+                                                  typical_positive_ratio=0.97029,
+                                                  keep_ascii_letters=True,
+                                                  alphabet='ABCDEFGHIJKLMNOPRSTUVYZabcdefghijklmnoprstuvyzÂÇÎÖÛÜâçîöûüĞğİıŞş')
+
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/latin1prober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/latin1prober.py
new file mode 100644
index 0000000..7d1e8c2
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/latin1prober.py
@@ -0,0 +1,145 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetprober import CharSetProber
+from .enums import ProbingState
+
+FREQ_CAT_NUM = 4
+
+UDF = 0  # undefined
+OTH = 1  # other
+ASC = 2  # ascii capital letter
+ASS = 3  # ascii small letter
+ACV = 4  # accent capital vowel
+ACO = 5  # accent capital other
+ASV = 6  # accent small vowel
+ASO = 7  # accent small other
+CLASS_NUM = 8  # total classes
+
+Latin1_CharToClass = (
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 00 - 07
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 08 - 0F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 10 - 17
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 18 - 1F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 20 - 27
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 28 - 2F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 30 - 37
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 38 - 3F
+    OTH, ASC, ASC, ASC, ASC, ASC, ASC, ASC,   # 40 - 47
+    ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC,   # 48 - 4F
+    ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC,   # 50 - 57
+    ASC, ASC, ASC, OTH, OTH, OTH, OTH, OTH,   # 58 - 5F
+    OTH, ASS, ASS, ASS, ASS, ASS, ASS, ASS,   # 60 - 67
+    ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS,   # 68 - 6F
+    ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS,   # 70 - 77
+    ASS, ASS, ASS, OTH, OTH, OTH, OTH, OTH,   # 78 - 7F
+    OTH, UDF, OTH, ASO, OTH, OTH, OTH, OTH,   # 80 - 87
+    OTH, OTH, ACO, OTH, ACO, UDF, ACO, UDF,   # 88 - 8F
+    UDF, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 90 - 97
+    OTH, OTH, ASO, OTH, ASO, UDF, ASO, ACO,   # 98 - 9F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # A0 - A7
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # A8 - AF
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # B0 - B7
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # B8 - BF
+    ACV, ACV, ACV, ACV, ACV, ACV, ACO, ACO,   # C0 - C7
+    ACV, ACV, ACV, ACV, ACV, ACV, ACV, ACV,   # C8 - CF
+    ACO, ACO, ACV, ACV, ACV, ACV, ACV, OTH,   # D0 - D7
+    ACV, ACV, ACV, ACV, ACV, ACO, ACO, ACO,   # D8 - DF
+    ASV, ASV, ASV, ASV, ASV, ASV, ASO, ASO,   # E0 - E7
+    ASV, ASV, ASV, ASV, ASV, ASV, ASV, ASV,   # E8 - EF
+    ASO, ASO, ASV, ASV, ASV, ASV, ASV, OTH,   # F0 - F7
+    ASV, ASV, ASV, ASV, ASV, ASO, ASO, ASO,   # F8 - FF
+)
+
+# 0 : illegal
+# 1 : very unlikely
+# 2 : normal
+# 3 : very likely
+Latin1ClassModel = (
+# UDF OTH ASC ASS ACV ACO ASV ASO
+    0,  0,  0,  0,  0,  0,  0,  0,  # UDF
+    0,  3,  3,  3,  3,  3,  3,  3,  # OTH
+    0,  3,  3,  3,  3,  3,  3,  3,  # ASC
+    0,  3,  3,  3,  1,  1,  3,  3,  # ASS
+    0,  3,  3,  3,  1,  2,  1,  2,  # ACV
+    0,  3,  3,  3,  3,  3,  3,  3,  # ACO
+    0,  3,  1,  3,  1,  1,  1,  3,  # ASV
+    0,  3,  1,  3,  1,  1,  3,  3,  # ASO
+)
+
+
+class Latin1Prober(CharSetProber):
+    def __init__(self):
+        super(Latin1Prober, self).__init__()
+        self._last_char_class = None
+        self._freq_counter = None
+        self.reset()
+
+    def reset(self):
+        self._last_char_class = OTH
+        self._freq_counter = [0] * FREQ_CAT_NUM
+        CharSetProber.reset(self)
+
+    @property
+    def charset_name(self):
+        return "ISO-8859-1"
+
+    @property
+    def language(self):
+        return ""
+
+    def feed(self, byte_str):
+        byte_str = self.filter_with_english_letters(byte_str)
+        for c in byte_str:
+            char_class = Latin1_CharToClass[c]
+            freq = Latin1ClassModel[(self._last_char_class * CLASS_NUM)
+                                    + char_class]
+            if freq == 0:
+                self._state = ProbingState.NOT_ME
+                break
+            self._freq_counter[freq] += 1
+            self._last_char_class = char_class
+
+        return self.state
+
+    def get_confidence(self):
+        if self.state == ProbingState.NOT_ME:
+            return 0.01
+
+        total = sum(self._freq_counter)
+        if total < 0.01:
+            confidence = 0.0
+        else:
+            confidence = ((self._freq_counter[3] - self._freq_counter[1] * 20.0)
+                          / total)
+        if confidence < 0.0:
+            confidence = 0.0
+        # lower the confidence of latin1 so that other more accurate
+        # detector can take priority.
+        confidence = confidence * 0.73
+        return confidence
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/mbcharsetprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/mbcharsetprober.py
new file mode 100644
index 0000000..6256ecf
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/mbcharsetprober.py
@@ -0,0 +1,91 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#   Proofpoint, Inc.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetprober import CharSetProber
+from .enums import ProbingState, MachineState
+
+
+class MultiByteCharSetProber(CharSetProber):
+    """
+    MultiByteCharSetProber
+    """
+
+    def __init__(self, lang_filter=None):
+        super(MultiByteCharSetProber, self).__init__(lang_filter=lang_filter)
+        self.distribution_analyzer = None
+        self.coding_sm = None
+        self._last_char = [0, 0]
+
+    def reset(self):
+        super(MultiByteCharSetProber, self).reset()
+        if self.coding_sm:
+            self.coding_sm.reset()
+        if self.distribution_analyzer:
+            self.distribution_analyzer.reset()
+        self._last_char = [0, 0]
+
+    @property
+    def charset_name(self):
+        raise NotImplementedError
+
+    @property
+    def language(self):
+        raise NotImplementedError
+
+    def feed(self, byte_str):
+        for i in range(len(byte_str)):
+            coding_state = self.coding_sm.next_state(byte_str[i])
+            if coding_state == MachineState.ERROR:
+                self.logger.debug('%s %s prober hit error at byte %s',
+                                  self.charset_name, self.language, i)
+                self._state = ProbingState.NOT_ME
+                break
+            elif coding_state == MachineState.ITS_ME:
+                self._state = ProbingState.FOUND_IT
+                break
+            elif coding_state == MachineState.START:
+                char_len = self.coding_sm.get_current_charlen()
+                if i == 0:
+                    self._last_char[1] = byte_str[0]
+                    self.distribution_analyzer.feed(self._last_char, char_len)
+                else:
+                    self.distribution_analyzer.feed(byte_str[i - 1:i + 1],
+                                                    char_len)
+
+        self._last_char[0] = byte_str[-1]
+
+        if self.state == ProbingState.DETECTING:
+            if (self.distribution_analyzer.got_enough_data() and
+                    (self.get_confidence() > self.SHORTCUT_THRESHOLD)):
+                self._state = ProbingState.FOUND_IT
+
+        return self.state
+
+    def get_confidence(self):
+        return self.distribution_analyzer.get_confidence()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/mbcsgroupprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/mbcsgroupprober.py
new file mode 100644
index 0000000..530abe7
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/mbcsgroupprober.py
@@ -0,0 +1,54 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#   Proofpoint, Inc.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetgroupprober import CharSetGroupProber
+from .utf8prober import UTF8Prober
+from .sjisprober import SJISProber
+from .eucjpprober import EUCJPProber
+from .gb2312prober import GB2312Prober
+from .euckrprober import EUCKRProber
+from .cp949prober import CP949Prober
+from .big5prober import Big5Prober
+from .euctwprober import EUCTWProber
+
+
+class MBCSGroupProber(CharSetGroupProber):
+    def __init__(self, lang_filter=None):
+        super(MBCSGroupProber, self).__init__(lang_filter=lang_filter)
+        self.probers = [
+            UTF8Prober(),
+            SJISProber(),
+            EUCJPProber(),
+            GB2312Prober(),
+            EUCKRProber(),
+            CP949Prober(),
+            Big5Prober(),
+            EUCTWProber()
+        ]
+        self.reset()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/mbcssm.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/mbcssm.py
new file mode 100644
index 0000000..8360d0f
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/mbcssm.py
@@ -0,0 +1,572 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .enums import MachineState
+
+# BIG5
+
+BIG5_CLS = (
+    1,1,1,1,1,1,1,1,  # 00 - 07    #allow 0x00 as legal value
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,1,  # 78 - 7f
+    4,4,4,4,4,4,4,4,  # 80 - 87
+    4,4,4,4,4,4,4,4,  # 88 - 8f
+    4,4,4,4,4,4,4,4,  # 90 - 97
+    4,4,4,4,4,4,4,4,  # 98 - 9f
+    4,3,3,3,3,3,3,3,  # a0 - a7
+    3,3,3,3,3,3,3,3,  # a8 - af
+    3,3,3,3,3,3,3,3,  # b0 - b7
+    3,3,3,3,3,3,3,3,  # b8 - bf
+    3,3,3,3,3,3,3,3,  # c0 - c7
+    3,3,3,3,3,3,3,3,  # c8 - cf
+    3,3,3,3,3,3,3,3,  # d0 - d7
+    3,3,3,3,3,3,3,3,  # d8 - df
+    3,3,3,3,3,3,3,3,  # e0 - e7
+    3,3,3,3,3,3,3,3,  # e8 - ef
+    3,3,3,3,3,3,3,3,  # f0 - f7
+    3,3,3,3,3,3,3,0  # f8 - ff
+)
+
+BIG5_ST = (
+    MachineState.ERROR,MachineState.START,MachineState.START,     3,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#00-07
+    MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ERROR,#08-0f
+    MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START#10-17
+)
+
+BIG5_CHAR_LEN_TABLE = (0, 1, 1, 2, 0)
+
+BIG5_SM_MODEL = {'class_table': BIG5_CLS,
+                 'class_factor': 5,
+                 'state_table': BIG5_ST,
+                 'char_len_table': BIG5_CHAR_LEN_TABLE,
+                 'name': 'Big5'}
+
+# CP949
+
+CP949_CLS  = (
+    1,1,1,1,1,1,1,1, 1,1,1,1,1,1,0,0,  # 00 - 0f
+    1,1,1,1,1,1,1,1, 1,1,1,0,1,1,1,1,  # 10 - 1f
+    1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,  # 20 - 2f
+    1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,  # 30 - 3f
+    1,4,4,4,4,4,4,4, 4,4,4,4,4,4,4,4,  # 40 - 4f
+    4,4,5,5,5,5,5,5, 5,5,5,1,1,1,1,1,  # 50 - 5f
+    1,5,5,5,5,5,5,5, 5,5,5,5,5,5,5,5,  # 60 - 6f
+    5,5,5,5,5,5,5,5, 5,5,5,1,1,1,1,1,  # 70 - 7f
+    0,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,  # 80 - 8f
+    6,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,  # 90 - 9f
+    6,7,7,7,7,7,7,7, 7,7,7,7,7,8,8,8,  # a0 - af
+    7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,  # b0 - bf
+    7,7,7,7,7,7,9,2, 2,3,2,2,2,2,2,2,  # c0 - cf
+    2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,  # d0 - df
+    2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,  # e0 - ef
+    2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,0,  # f0 - ff
+)
+
+CP949_ST = (
+#cls=    0      1      2      3      4      5      6      7      8      9  # previous state =
+    MachineState.ERROR,MachineState.START,     3,MachineState.ERROR,MachineState.START,MachineState.START,     4,     5,MachineState.ERROR,     6, # MachineState.START
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR, # MachineState.ERROR
+    MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME, # MachineState.ITS_ME
+    MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START, # 3
+    MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START, # 4
+    MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START, # 5
+    MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START, # 6
+)
+
+CP949_CHAR_LEN_TABLE = (0, 1, 2, 0, 1, 1, 2, 2, 0, 2)
+
+CP949_SM_MODEL = {'class_table': CP949_CLS,
+                  'class_factor': 10,
+                  'state_table': CP949_ST,
+                  'char_len_table': CP949_CHAR_LEN_TABLE,
+                  'name': 'CP949'}
+
+# EUC-JP
+
+EUCJP_CLS = (
+    4,4,4,4,4,4,4,4,  # 00 - 07
+    4,4,4,4,4,4,5,5,  # 08 - 0f
+    4,4,4,4,4,4,4,4,  # 10 - 17
+    4,4,4,5,4,4,4,4,  # 18 - 1f
+    4,4,4,4,4,4,4,4,  # 20 - 27
+    4,4,4,4,4,4,4,4,  # 28 - 2f
+    4,4,4,4,4,4,4,4,  # 30 - 37
+    4,4,4,4,4,4,4,4,  # 38 - 3f
+    4,4,4,4,4,4,4,4,  # 40 - 47
+    4,4,4,4,4,4,4,4,  # 48 - 4f
+    4,4,4,4,4,4,4,4,  # 50 - 57
+    4,4,4,4,4,4,4,4,  # 58 - 5f
+    4,4,4,4,4,4,4,4,  # 60 - 67
+    4,4,4,4,4,4,4,4,  # 68 - 6f
+    4,4,4,4,4,4,4,4,  # 70 - 77
+    4,4,4,4,4,4,4,4,  # 78 - 7f
+    5,5,5,5,5,5,5,5,  # 80 - 87
+    5,5,5,5,5,5,1,3,  # 88 - 8f
+    5,5,5,5,5,5,5,5,  # 90 - 97
+    5,5,5,5,5,5,5,5,  # 98 - 9f
+    5,2,2,2,2,2,2,2,  # a0 - a7
+    2,2,2,2,2,2,2,2,  # a8 - af
+    2,2,2,2,2,2,2,2,  # b0 - b7
+    2,2,2,2,2,2,2,2,  # b8 - bf
+    2,2,2,2,2,2,2,2,  # c0 - c7
+    2,2,2,2,2,2,2,2,  # c8 - cf
+    2,2,2,2,2,2,2,2,  # d0 - d7
+    2,2,2,2,2,2,2,2,  # d8 - df
+    0,0,0,0,0,0,0,0,  # e0 - e7
+    0,0,0,0,0,0,0,0,  # e8 - ef
+    0,0,0,0,0,0,0,0,  # f0 - f7
+    0,0,0,0,0,0,0,5  # f8 - ff
+)
+
+EUCJP_ST = (
+          3,     4,     3,     5,MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#00-07
+     MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,#08-0f
+     MachineState.ITS_ME,MachineState.ITS_ME,MachineState.START,MachineState.ERROR,MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#10-17
+     MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     3,MachineState.ERROR,#18-1f
+          3,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START#20-27
+)
+
+EUCJP_CHAR_LEN_TABLE = (2, 2, 2, 3, 1, 0)
+
+EUCJP_SM_MODEL = {'class_table': EUCJP_CLS,
+                  'class_factor': 6,
+                  'state_table': EUCJP_ST,
+                  'char_len_table': EUCJP_CHAR_LEN_TABLE,
+                  'name': 'EUC-JP'}
+
+# EUC-KR
+
+EUCKR_CLS  = (
+    1,1,1,1,1,1,1,1,  # 00 - 07
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    1,1,1,1,1,1,1,1,  # 40 - 47
+    1,1,1,1,1,1,1,1,  # 48 - 4f
+    1,1,1,1,1,1,1,1,  # 50 - 57
+    1,1,1,1,1,1,1,1,  # 58 - 5f
+    1,1,1,1,1,1,1,1,  # 60 - 67
+    1,1,1,1,1,1,1,1,  # 68 - 6f
+    1,1,1,1,1,1,1,1,  # 70 - 77
+    1,1,1,1,1,1,1,1,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,0,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,2,2,2,2,2,2,2,  # a0 - a7
+    2,2,2,2,2,3,3,3,  # a8 - af
+    2,2,2,2,2,2,2,2,  # b0 - b7
+    2,2,2,2,2,2,2,2,  # b8 - bf
+    2,2,2,2,2,2,2,2,  # c0 - c7
+    2,3,2,2,2,2,2,2,  # c8 - cf
+    2,2,2,2,2,2,2,2,  # d0 - d7
+    2,2,2,2,2,2,2,2,  # d8 - df
+    2,2,2,2,2,2,2,2,  # e0 - e7
+    2,2,2,2,2,2,2,2,  # e8 - ef
+    2,2,2,2,2,2,2,2,  # f0 - f7
+    2,2,2,2,2,2,2,0   # f8 - ff
+)
+
+EUCKR_ST = (
+    MachineState.ERROR,MachineState.START,     3,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#00-07
+    MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START #08-0f
+)
+
+EUCKR_CHAR_LEN_TABLE = (0, 1, 2, 0)
+
+EUCKR_SM_MODEL = {'class_table': EUCKR_CLS,
+                'class_factor': 4,
+                'state_table': EUCKR_ST,
+                'char_len_table': EUCKR_CHAR_LEN_TABLE,
+                'name': 'EUC-KR'}
+
+# EUC-TW
+
+EUCTW_CLS = (
+    2,2,2,2,2,2,2,2,  # 00 - 07
+    2,2,2,2,2,2,0,0,  # 08 - 0f
+    2,2,2,2,2,2,2,2,  # 10 - 17
+    2,2,2,0,2,2,2,2,  # 18 - 1f
+    2,2,2,2,2,2,2,2,  # 20 - 27
+    2,2,2,2,2,2,2,2,  # 28 - 2f
+    2,2,2,2,2,2,2,2,  # 30 - 37
+    2,2,2,2,2,2,2,2,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,2,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,6,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,3,4,4,4,4,4,4,  # a0 - a7
+    5,5,1,1,1,1,1,1,  # a8 - af
+    1,1,1,1,1,1,1,1,  # b0 - b7
+    1,1,1,1,1,1,1,1,  # b8 - bf
+    1,1,3,1,3,3,3,3,  # c0 - c7
+    3,3,3,3,3,3,3,3,  # c8 - cf
+    3,3,3,3,3,3,3,3,  # d0 - d7
+    3,3,3,3,3,3,3,3,  # d8 - df
+    3,3,3,3,3,3,3,3,  # e0 - e7
+    3,3,3,3,3,3,3,3,  # e8 - ef
+    3,3,3,3,3,3,3,3,  # f0 - f7
+    3,3,3,3,3,3,3,0   # f8 - ff
+)
+
+EUCTW_ST = (
+    MachineState.ERROR,MachineState.ERROR,MachineState.START,     3,     3,     3,     4,MachineState.ERROR,#00-07
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,#08-0f
+    MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ERROR,MachineState.START,MachineState.ERROR,#10-17
+    MachineState.START,MachineState.START,MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#18-1f
+         5,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.ERROR,MachineState.START,MachineState.START,#20-27
+    MachineState.START,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START #28-2f
+)
+
+EUCTW_CHAR_LEN_TABLE = (0, 0, 1, 2, 2, 2, 3)
+
+EUCTW_SM_MODEL = {'class_table': EUCTW_CLS,
+                'class_factor': 7,
+                'state_table': EUCTW_ST,
+                'char_len_table': EUCTW_CHAR_LEN_TABLE,
+                'name': 'x-euc-tw'}
+
+# GB2312
+
+GB2312_CLS = (
+    1,1,1,1,1,1,1,1,  # 00 - 07
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    3,3,3,3,3,3,3,3,  # 30 - 37
+    3,3,1,1,1,1,1,1,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,4,  # 78 - 7f
+    5,6,6,6,6,6,6,6,  # 80 - 87
+    6,6,6,6,6,6,6,6,  # 88 - 8f
+    6,6,6,6,6,6,6,6,  # 90 - 97
+    6,6,6,6,6,6,6,6,  # 98 - 9f
+    6,6,6,6,6,6,6,6,  # a0 - a7
+    6,6,6,6,6,6,6,6,  # a8 - af
+    6,6,6,6,6,6,6,6,  # b0 - b7
+    6,6,6,6,6,6,6,6,  # b8 - bf
+    6,6,6,6,6,6,6,6,  # c0 - c7
+    6,6,6,6,6,6,6,6,  # c8 - cf
+    6,6,6,6,6,6,6,6,  # d0 - d7
+    6,6,6,6,6,6,6,6,  # d8 - df
+    6,6,6,6,6,6,6,6,  # e0 - e7
+    6,6,6,6,6,6,6,6,  # e8 - ef
+    6,6,6,6,6,6,6,6,  # f0 - f7
+    6,6,6,6,6,6,6,0   # f8 - ff
+)
+
+GB2312_ST = (
+    MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,     3,MachineState.ERROR,#00-07
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,#08-0f
+    MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,MachineState.START,#10-17
+         4,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#18-1f
+    MachineState.ERROR,MachineState.ERROR,     5,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ERROR,#20-27
+    MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.START #28-2f
+)
+
+# To be accurate, the length of class 6 can be either 2 or 4.
+# But it is not necessary to discriminate between the two since
+# it is used for frequency analysis only, and we are validating
+# each code range there as well. So it is safe to set it to be
+# 2 here.
+GB2312_CHAR_LEN_TABLE = (0, 1, 1, 1, 1, 1, 2)
+
+GB2312_SM_MODEL = {'class_table': GB2312_CLS,
+                   'class_factor': 7,
+                   'state_table': GB2312_ST,
+                   'char_len_table': GB2312_CHAR_LEN_TABLE,
+                   'name': 'GB2312'}
+
+# Shift_JIS
+
+SJIS_CLS = (
+    1,1,1,1,1,1,1,1,  # 00 - 07
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,1,  # 78 - 7f
+    3,3,3,3,3,2,2,3,  # 80 - 87
+    3,3,3,3,3,3,3,3,  # 88 - 8f
+    3,3,3,3,3,3,3,3,  # 90 - 97
+    3,3,3,3,3,3,3,3,  # 98 - 9f
+    #0xa0 is illegal in sjis encoding, but some pages does
+    #contain such byte. We need to be more error forgiven.
+    2,2,2,2,2,2,2,2,  # a0 - a7
+    2,2,2,2,2,2,2,2,  # a8 - af
+    2,2,2,2,2,2,2,2,  # b0 - b7
+    2,2,2,2,2,2,2,2,  # b8 - bf
+    2,2,2,2,2,2,2,2,  # c0 - c7
+    2,2,2,2,2,2,2,2,  # c8 - cf
+    2,2,2,2,2,2,2,2,  # d0 - d7
+    2,2,2,2,2,2,2,2,  # d8 - df
+    3,3,3,3,3,3,3,3,  # e0 - e7
+    3,3,3,3,3,4,4,4,  # e8 - ef
+    3,3,3,3,3,3,3,3,  # f0 - f7
+    3,3,3,3,3,0,0,0)  # f8 - ff
+
+
+SJIS_ST = (
+    MachineState.ERROR,MachineState.START,MachineState.START,     3,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#00-07
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,#08-0f
+    MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START #10-17
+)
+
+SJIS_CHAR_LEN_TABLE = (0, 1, 1, 2, 0, 0)
+
+SJIS_SM_MODEL = {'class_table': SJIS_CLS,
+               'class_factor': 6,
+               'state_table': SJIS_ST,
+               'char_len_table': SJIS_CHAR_LEN_TABLE,
+               'name': 'Shift_JIS'}
+
+# UCS2-BE
+
+UCS2BE_CLS = (
+    0,0,0,0,0,0,0,0,  # 00 - 07
+    0,0,1,0,0,2,0,0,  # 08 - 0f
+    0,0,0,0,0,0,0,0,  # 10 - 17
+    0,0,0,3,0,0,0,0,  # 18 - 1f
+    0,0,0,0,0,0,0,0,  # 20 - 27
+    0,3,3,3,3,3,0,0,  # 28 - 2f
+    0,0,0,0,0,0,0,0,  # 30 - 37
+    0,0,0,0,0,0,0,0,  # 38 - 3f
+    0,0,0,0,0,0,0,0,  # 40 - 47
+    0,0,0,0,0,0,0,0,  # 48 - 4f
+    0,0,0,0,0,0,0,0,  # 50 - 57
+    0,0,0,0,0,0,0,0,  # 58 - 5f
+    0,0,0,0,0,0,0,0,  # 60 - 67
+    0,0,0,0,0,0,0,0,  # 68 - 6f
+    0,0,0,0,0,0,0,0,  # 70 - 77
+    0,0,0,0,0,0,0,0,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,0,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,0,0,0,0,0,0,0,  # a0 - a7
+    0,0,0,0,0,0,0,0,  # a8 - af
+    0,0,0,0,0,0,0,0,  # b0 - b7
+    0,0,0,0,0,0,0,0,  # b8 - bf
+    0,0,0,0,0,0,0,0,  # c0 - c7
+    0,0,0,0,0,0,0,0,  # c8 - cf
+    0,0,0,0,0,0,0,0,  # d0 - d7
+    0,0,0,0,0,0,0,0,  # d8 - df
+    0,0,0,0,0,0,0,0,  # e0 - e7
+    0,0,0,0,0,0,0,0,  # e8 - ef
+    0,0,0,0,0,0,0,0,  # f0 - f7
+    0,0,0,0,0,0,4,5   # f8 - ff
+)
+
+UCS2BE_ST  = (
+          5,     7,     7,MachineState.ERROR,     4,     3,MachineState.ERROR,MachineState.ERROR,#00-07
+     MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,#08-0f
+     MachineState.ITS_ME,MachineState.ITS_ME,     6,     6,     6,     6,MachineState.ERROR,MachineState.ERROR,#10-17
+          6,     6,     6,     6,     6,MachineState.ITS_ME,     6,     6,#18-1f
+          6,     6,     6,     6,     5,     7,     7,MachineState.ERROR,#20-27
+          5,     8,     6,     6,MachineState.ERROR,     6,     6,     6,#28-2f
+          6,     6,     6,     6,MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START #30-37
+)
+
+UCS2BE_CHAR_LEN_TABLE = (2, 2, 2, 0, 2, 2)
+
+UCS2BE_SM_MODEL = {'class_table': UCS2BE_CLS,
+                   'class_factor': 6,
+                   'state_table': UCS2BE_ST,
+                   'char_len_table': UCS2BE_CHAR_LEN_TABLE,
+                   'name': 'UTF-16BE'}
+
+# UCS2-LE
+
+UCS2LE_CLS = (
+    0,0,0,0,0,0,0,0,  # 00 - 07
+    0,0,1,0,0,2,0,0,  # 08 - 0f
+    0,0,0,0,0,0,0,0,  # 10 - 17
+    0,0,0,3,0,0,0,0,  # 18 - 1f
+    0,0,0,0,0,0,0,0,  # 20 - 27
+    0,3,3,3,3,3,0,0,  # 28 - 2f
+    0,0,0,0,0,0,0,0,  # 30 - 37
+    0,0,0,0,0,0,0,0,  # 38 - 3f
+    0,0,0,0,0,0,0,0,  # 40 - 47
+    0,0,0,0,0,0,0,0,  # 48 - 4f
+    0,0,0,0,0,0,0,0,  # 50 - 57
+    0,0,0,0,0,0,0,0,  # 58 - 5f
+    0,0,0,0,0,0,0,0,  # 60 - 67
+    0,0,0,0,0,0,0,0,  # 68 - 6f
+    0,0,0,0,0,0,0,0,  # 70 - 77
+    0,0,0,0,0,0,0,0,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,0,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,0,0,0,0,0,0,0,  # a0 - a7
+    0,0,0,0,0,0,0,0,  # a8 - af
+    0,0,0,0,0,0,0,0,  # b0 - b7
+    0,0,0,0,0,0,0,0,  # b8 - bf
+    0,0,0,0,0,0,0,0,  # c0 - c7
+    0,0,0,0,0,0,0,0,  # c8 - cf
+    0,0,0,0,0,0,0,0,  # d0 - d7
+    0,0,0,0,0,0,0,0,  # d8 - df
+    0,0,0,0,0,0,0,0,  # e0 - e7
+    0,0,0,0,0,0,0,0,  # e8 - ef
+    0,0,0,0,0,0,0,0,  # f0 - f7
+    0,0,0,0,0,0,4,5   # f8 - ff
+)
+
+UCS2LE_ST = (
+          6,     6,     7,     6,     4,     3,MachineState.ERROR,MachineState.ERROR,#00-07
+     MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,#08-0f
+     MachineState.ITS_ME,MachineState.ITS_ME,     5,     5,     5,MachineState.ERROR,MachineState.ITS_ME,MachineState.ERROR,#10-17
+          5,     5,     5,MachineState.ERROR,     5,MachineState.ERROR,     6,     6,#18-1f
+          7,     6,     8,     8,     5,     5,     5,MachineState.ERROR,#20-27
+          5,     5,     5,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     5,     5,#28-2f
+          5,     5,     5,MachineState.ERROR,     5,MachineState.ERROR,MachineState.START,MachineState.START #30-37
+)
+
+UCS2LE_CHAR_LEN_TABLE = (2, 2, 2, 2, 2, 2)
+
+UCS2LE_SM_MODEL = {'class_table': UCS2LE_CLS,
+                 'class_factor': 6,
+                 'state_table': UCS2LE_ST,
+                 'char_len_table': UCS2LE_CHAR_LEN_TABLE,
+                 'name': 'UTF-16LE'}
+
+# UTF-8
+
+UTF8_CLS = (
+    1,1,1,1,1,1,1,1,  # 00 - 07  #allow 0x00 as a legal value
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    1,1,1,1,1,1,1,1,  # 40 - 47
+    1,1,1,1,1,1,1,1,  # 48 - 4f
+    1,1,1,1,1,1,1,1,  # 50 - 57
+    1,1,1,1,1,1,1,1,  # 58 - 5f
+    1,1,1,1,1,1,1,1,  # 60 - 67
+    1,1,1,1,1,1,1,1,  # 68 - 6f
+    1,1,1,1,1,1,1,1,  # 70 - 77
+    1,1,1,1,1,1,1,1,  # 78 - 7f
+    2,2,2,2,3,3,3,3,  # 80 - 87
+    4,4,4,4,4,4,4,4,  # 88 - 8f
+    4,4,4,4,4,4,4,4,  # 90 - 97
+    4,4,4,4,4,4,4,4,  # 98 - 9f
+    5,5,5,5,5,5,5,5,  # a0 - a7
+    5,5,5,5,5,5,5,5,  # a8 - af
+    5,5,5,5,5,5,5,5,  # b0 - b7
+    5,5,5,5,5,5,5,5,  # b8 - bf
+    0,0,6,6,6,6,6,6,  # c0 - c7
+    6,6,6,6,6,6,6,6,  # c8 - cf
+    6,6,6,6,6,6,6,6,  # d0 - d7
+    6,6,6,6,6,6,6,6,  # d8 - df
+    7,8,8,8,8,8,8,8,  # e0 - e7
+    8,8,8,8,8,9,8,8,  # e8 - ef
+    10,11,11,11,11,11,11,11,  # f0 - f7
+    12,13,13,13,14,15,0,0    # f8 - ff
+)
+
+UTF8_ST = (
+    MachineState.ERROR,MachineState.START,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     12,   10,#00-07
+         9,     11,     8,     7,     6,     5,     4,    3,#08-0f
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#10-17
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#18-1f
+    MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,#20-27
+    MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,MachineState.ITS_ME,#28-2f
+    MachineState.ERROR,MachineState.ERROR,     5,     5,     5,     5,MachineState.ERROR,MachineState.ERROR,#30-37
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#38-3f
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     5,     5,     5,MachineState.ERROR,MachineState.ERROR,#40-47
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#48-4f
+    MachineState.ERROR,MachineState.ERROR,     7,     7,     7,     7,MachineState.ERROR,MachineState.ERROR,#50-57
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#58-5f
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     7,     7,MachineState.ERROR,MachineState.ERROR,#60-67
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#68-6f
+    MachineState.ERROR,MachineState.ERROR,     9,     9,     9,     9,MachineState.ERROR,MachineState.ERROR,#70-77
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#78-7f
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,     9,MachineState.ERROR,MachineState.ERROR,#80-87
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#88-8f
+    MachineState.ERROR,MachineState.ERROR,    12,    12,    12,    12,MachineState.ERROR,MachineState.ERROR,#90-97
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#98-9f
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,    12,MachineState.ERROR,MachineState.ERROR,#a0-a7
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#a8-af
+    MachineState.ERROR,MachineState.ERROR,    12,    12,    12,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#b0-b7
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,#b8-bf
+    MachineState.ERROR,MachineState.ERROR,MachineState.START,MachineState.START,MachineState.START,MachineState.START,MachineState.ERROR,MachineState.ERROR,#c0-c7
+    MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR,MachineState.ERROR #c8-cf
+)
+
+UTF8_CHAR_LEN_TABLE = (0, 1, 0, 0, 0, 0, 2, 3, 3, 3, 4, 4, 5, 5, 6, 6)
+
+UTF8_SM_MODEL = {'class_table': UTF8_CLS,
+                 'class_factor': 16,
+                 'state_table': UTF8_ST,
+                 'char_len_table': UTF8_CHAR_LEN_TABLE,
+                 'name': 'UTF-8'}
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/metadata/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/metadata/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/metadata/languages.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/metadata/languages.py
new file mode 100644
index 0000000..3237d5a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/metadata/languages.py
@@ -0,0 +1,310 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+Metadata about languages used by our model training code for our
+SingleByteCharSetProbers.  Could be used for other things in the future.
+
+This code is based on the language metadata from the uchardet project.
+"""
+from __future__ import absolute_import, print_function
+
+from string import ascii_letters
+
+
+# TODO: Add Ukranian (KOI8-U)
+
+class Language(object):
+    """Metadata about a language useful for training models
+
+    :ivar name: The human name for the language, in English.
+    :type name: str
+    :ivar iso_code: 2-letter ISO 639-1 if possible, 3-letter ISO code otherwise,
+                    or use another catalog as a last resort.
+    :type iso_code: str
+    :ivar use_ascii: Whether or not ASCII letters should be included in trained
+                     models.
+    :type use_ascii: bool
+    :ivar charsets: The charsets we want to support and create data for.
+    :type charsets: list of str
+    :ivar alphabet: The characters in the language's alphabet. If `use_ascii` is
+                    `True`, you only need to add those not in the ASCII set.
+    :type alphabet: str
+    :ivar wiki_start_pages: The Wikipedia pages to start from if we're crawling
+                            Wikipedia for training data.
+    :type wiki_start_pages: list of str
+    """
+    def __init__(self, name=None, iso_code=None, use_ascii=True, charsets=None,
+                 alphabet=None, wiki_start_pages=None):
+        super(Language, self).__init__()
+        self.name = name
+        self.iso_code = iso_code
+        self.use_ascii = use_ascii
+        self.charsets = charsets
+        if self.use_ascii:
+            if alphabet:
+                alphabet += ascii_letters
+            else:
+                alphabet = ascii_letters
+        elif not alphabet:
+            raise ValueError('Must supply alphabet if use_ascii is False')
+        self.alphabet = ''.join(sorted(set(alphabet))) if alphabet else None
+        self.wiki_start_pages = wiki_start_pages
+
+    def __repr__(self):
+        return '{}({})'.format(self.__class__.__name__,
+                               ', '.join('{}={!r}'.format(k, v)
+                                         for k, v in self.__dict__.items()
+                                         if not k.startswith('_')))
+
+
+LANGUAGES = {'Arabic': Language(name='Arabic',
+                                iso_code='ar',
+                                use_ascii=False,
+                                # We only support encodings that use isolated
+                                # forms, because the current recommendation is
+                                # that the rendering system handles presentation
+                                # forms. This means we purposefully skip IBM864.
+                                charsets=['ISO-8859-6', 'WINDOWS-1256',
+                                          'CP720', 'CP864'],
+                                alphabet=u'ءآأؤإئابةتثجحخدذرزسشصضطظعغػؼؽؾؿـفقكلمنهوىيًٌٍَُِّ',
+                                wiki_start_pages=[u'الصفحة_الرئيسية']),
+             'Belarusian': Language(name='Belarusian',
+                                    iso_code='be',
+                                    use_ascii=False,
+                                    charsets=['ISO-8859-5', 'WINDOWS-1251',
+                                              'IBM866', 'MacCyrillic'],
+                                    alphabet=(u'АБВГДЕЁЖЗІЙКЛМНОПРСТУЎФХЦЧШЫЬЭЮЯ'
+                                              u'абвгдеёжзійклмнопрстуўфхцчшыьэюяʼ'),
+                                    wiki_start_pages=[u'Галоўная_старонка']),
+             'Bulgarian': Language(name='Bulgarian',
+                                   iso_code='bg',
+                                   use_ascii=False,
+                                   charsets=['ISO-8859-5', 'WINDOWS-1251',
+                                             'IBM855'],
+                                   alphabet=(u'АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЬЮЯ'
+                                             u'абвгдежзийклмнопрстуфхцчшщъьюя'),
+                                   wiki_start_pages=[u'Начална_страница']),
+             'Czech': Language(name='Czech',
+                               iso_code='cz',
+                               use_ascii=True,
+                               charsets=['ISO-8859-2', 'WINDOWS-1250'],
+                               alphabet=u'áčďéěíňóřšťúůýžÁČĎÉĚÍŇÓŘŠŤÚŮÝŽ',
+                               wiki_start_pages=[u'Hlavní_strana']),
+             'Danish': Language(name='Danish',
+                                iso_code='da',
+                                use_ascii=True,
+                                charsets=['ISO-8859-1', 'ISO-8859-15',
+                                          'WINDOWS-1252'],
+                                alphabet=u'æøåÆØÅ',
+                                wiki_start_pages=[u'Forside']),
+             'German': Language(name='German',
+                                iso_code='de',
+                                use_ascii=True,
+                                charsets=['ISO-8859-1', 'WINDOWS-1252'],
+                                alphabet=u'äöüßÄÖÜ',
+                                wiki_start_pages=[u'Wikipedia:Hauptseite']),
+             'Greek': Language(name='Greek',
+                               iso_code='el',
+                               use_ascii=False,
+                               charsets=['ISO-8859-7', 'WINDOWS-1253'],
+                               alphabet=(u'αβγδεζηθικλμνξοπρσςτυφχψωάέήίόύώ'
+                                         u'ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΣΤΥΦΧΨΩΆΈΉΊΌΎΏ'),
+                               wiki_start_pages=[u'Πύλη:Κύρια']),
+             'English': Language(name='English',
+                                 iso_code='en',
+                                 use_ascii=True,
+                                 charsets=['ISO-8859-1', 'WINDOWS-1252'],
+                                 wiki_start_pages=[u'Main_Page']),
+             'Esperanto': Language(name='Esperanto',
+                                   iso_code='eo',
+                                   # Q, W, X, and Y not used at all
+                                   use_ascii=False,
+                                   charsets=['ISO-8859-3'],
+                                   alphabet=(u'abcĉdefgĝhĥijĵklmnoprsŝtuŭvz'
+                                             u'ABCĈDEFGĜHĤIJĴKLMNOPRSŜTUŬVZ'),
+                                   wiki_start_pages=[u'Vikipedio:Ĉefpaĝo']),
+             'Spanish': Language(name='Spanish',
+                                 iso_code='es',
+                                 use_ascii=True,
+                                 charsets=['ISO-8859-1', 'ISO-8859-15',
+                                           'WINDOWS-1252'],
+                                 alphabet=u'ñáéíóúüÑÁÉÍÓÚÜ',
+                                 wiki_start_pages=[u'Wikipedia:Portada']),
+             'Estonian': Language(name='Estonian',
+                                  iso_code='et',
+                                  use_ascii=False,
+                                  charsets=['ISO-8859-4', 'ISO-8859-13',
+                                            'WINDOWS-1257'],
+                                  # C, F, Š, Q, W, X, Y, Z, Ž are only for
+                                  # loanwords
+                                  alphabet=(u'ABDEGHIJKLMNOPRSTUVÕÄÖÜ'
+                                            u'abdeghijklmnoprstuvõäöü'),
+                                  wiki_start_pages=[u'Esileht']),
+             'Finnish': Language(name='Finnish',
+                                 iso_code='fi',
+                                 use_ascii=True,
+                                 charsets=['ISO-8859-1', 'ISO-8859-15',
+                                           'WINDOWS-1252'],
+                                 alphabet=u'ÅÄÖŠŽåäöšž',
+                                 wiki_start_pages=[u'Wikipedia:Etusivu']),
+             'French': Language(name='French',
+                                iso_code='fr',
+                                use_ascii=True,
+                                charsets=['ISO-8859-1', 'ISO-8859-15',
+                                          'WINDOWS-1252'],
+                                alphabet=u'œàâçèéîïùûêŒÀÂÇÈÉÎÏÙÛÊ',
+                                wiki_start_pages=[u'Wikipédia:Accueil_principal',
+                                                  u'Bœuf (animal)']),
+             'Hebrew': Language(name='Hebrew',
+                                iso_code='he',
+                                use_ascii=False,
+                                charsets=['ISO-8859-8', 'WINDOWS-1255'],
+                                alphabet=u'אבגדהוזחטיךכלםמןנסעףפץצקרשתװױײ',
+                                wiki_start_pages=[u'עמוד_ראשי']),
+             'Croatian': Language(name='Croatian',
+                                  iso_code='hr',
+                                  # Q, W, X, Y are only used for foreign words.
+                                  use_ascii=False,
+                                  charsets=['ISO-8859-2', 'WINDOWS-1250'],
+                                  alphabet=(u'abcčćdđefghijklmnoprsštuvzž'
+                                            u'ABCČĆDĐEFGHIJKLMNOPRSŠTUVZŽ'),
+                                  wiki_start_pages=[u'Glavna_stranica']),
+             'Hungarian': Language(name='Hungarian',
+                                   iso_code='hu',
+                                   # Q, W, X, Y are only used for foreign words.
+                                   use_ascii=False,
+                                   charsets=['ISO-8859-2', 'WINDOWS-1250'],
+                                   alphabet=(u'abcdefghijklmnoprstuvzáéíóöőúüű'
+                                             u'ABCDEFGHIJKLMNOPRSTUVZÁÉÍÓÖŐÚÜŰ'),
+                                   wiki_start_pages=[u'Kezdőlap']),
+             'Italian': Language(name='Italian',
+                                 iso_code='it',
+                                 use_ascii=True,
+                                 charsets=['ISO-8859-1', 'ISO-8859-15',
+                                           'WINDOWS-1252'],
+                                 alphabet=u'ÀÈÉÌÒÓÙàèéìòóù',
+                                 wiki_start_pages=[u'Pagina_principale']),
+             'Lithuanian': Language(name='Lithuanian',
+                                    iso_code='lt',
+                                    use_ascii=False,
+                                    charsets=['ISO-8859-13', 'WINDOWS-1257',
+                                              'ISO-8859-4'],
+                                    # Q, W, and X not used at all
+                                    alphabet=(u'AĄBCČDEĘĖFGHIĮYJKLMNOPRSŠTUŲŪVZŽ'
+                                              u'aąbcčdeęėfghiįyjklmnoprsštuųūvzž'),
+                                    wiki_start_pages=[u'Pagrindinis_puslapis']),
+             'Latvian': Language(name='Latvian',
+                                 iso_code='lv',
+                                 use_ascii=False,
+                                 charsets=['ISO-8859-13', 'WINDOWS-1257',
+                                           'ISO-8859-4'],
+                                 # Q, W, X, Y are only for loanwords
+                                 alphabet=(u'AĀBCČDEĒFGĢHIĪJKĶLĻMNŅOPRSŠTUŪVZŽ'
+                                           u'aābcčdeēfgģhiījkķlļmnņoprsštuūvzž'),
+                                 wiki_start_pages=[u'Sākumlapa']),
+             'Macedonian': Language(name='Macedonian',
+                                    iso_code='mk',
+                                    use_ascii=False,
+                                    charsets=['ISO-8859-5', 'WINDOWS-1251',
+                                              'MacCyrillic', 'IBM855'],
+                                    alphabet=(u'АБВГДЃЕЖЗЅИЈКЛЉМНЊОПРСТЌУФХЦЧЏШ'
+                                              u'абвгдѓежзѕијклљмнњопрстќуфхцчџш'),
+                                    wiki_start_pages=[u'Главна_страница']),
+             'Dutch': Language(name='Dutch',
+                               iso_code='nl',
+                               use_ascii=True,
+                               charsets=['ISO-8859-1', 'WINDOWS-1252'],
+                               wiki_start_pages=[u'Hoofdpagina']),
+             'Polish': Language(name='Polish',
+                                iso_code='pl',
+                                # Q and X are only used for foreign words.
+                                use_ascii=False,
+                                charsets=['ISO-8859-2', 'WINDOWS-1250'],
+                                alphabet=(u'AĄBCĆDEĘFGHIJKLŁMNŃOÓPRSŚTUWYZŹŻ'
+                                          u'aąbcćdeęfghijklłmnńoóprsśtuwyzźż'),
+                                wiki_start_pages=[u'Wikipedia:Strona_główna']),
+             'Portuguese': Language(name='Portuguese',
+                                 iso_code='pt',
+                                 use_ascii=True,
+                                 charsets=['ISO-8859-1', 'ISO-8859-15',
+                                           'WINDOWS-1252'],
+                                 alphabet=u'ÁÂÃÀÇÉÊÍÓÔÕÚáâãàçéêíóôõú',
+                                 wiki_start_pages=[u'Wikipédia:Página_principal']),
+             'Romanian': Language(name='Romanian',
+                                  iso_code='ro',
+                                  use_ascii=True,
+                                  charsets=['ISO-8859-2', 'WINDOWS-1250'],
+                                  alphabet=u'ăâîșțĂÂÎȘȚ',
+                                  wiki_start_pages=[u'Pagina_principală']),
+             'Russian': Language(name='Russian',
+                                 iso_code='ru',
+                                 use_ascii=False,
+                                 charsets=['ISO-8859-5', 'WINDOWS-1251',
+                                           'KOI8-R', 'MacCyrillic', 'IBM866',
+                                           'IBM855'],
+                                 alphabet=(u'абвгдеёжзийклмнопрстуфхцчшщъыьэюя'
+                                           u'АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ'),
+                                 wiki_start_pages=[u'Заглавная_страница']),
+             'Slovak': Language(name='Slovak',
+                                iso_code='sk',
+                                use_ascii=True,
+                                charsets=['ISO-8859-2', 'WINDOWS-1250'],
+                                alphabet=u'áäčďéíĺľňóôŕšťúýžÁÄČĎÉÍĹĽŇÓÔŔŠŤÚÝŽ',
+                                wiki_start_pages=[u'Hlavná_stránka']),
+             'Slovene': Language(name='Slovene',
+                                 iso_code='sl',
+                                 # Q, W, X, Y are only used for foreign words.
+                                 use_ascii=False,
+                                 charsets=['ISO-8859-2', 'WINDOWS-1250'],
+                                 alphabet=(u'abcčdefghijklmnoprsštuvzž'
+                                           u'ABCČDEFGHIJKLMNOPRSŠTUVZŽ'),
+                                 wiki_start_pages=[u'Glavna_stran']),
+             # Serbian can be written in both Latin and Cyrillic, but there's no
+             # simple way to get the Latin alphabet pages from Wikipedia through
+             # the API, so for now we just support Cyrillic.
+             'Serbian': Language(name='Serbian',
+                                 iso_code='sr',
+                                 alphabet=(u'АБВГДЂЕЖЗИЈКЛЉМНЊОПРСТЋУФХЦЧЏШ'
+                                           u'абвгдђежзијклљмнњопрстћуфхцчџш'),
+                                 charsets=['ISO-8859-5', 'WINDOWS-1251',
+                                           'MacCyrillic', 'IBM855'],
+                                 wiki_start_pages=[u'Главна_страна']),
+             'Thai': Language(name='Thai',
+                              iso_code='th',
+                              use_ascii=False,
+                              charsets=['ISO-8859-11', 'TIS-620', 'CP874'],
+                              alphabet=u'กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛',
+                              wiki_start_pages=[u'หน้าหลัก']),
+             'Turkish': Language(name='Turkish',
+                                 iso_code='tr',
+                                 # Q, W, and X are not used by Turkish
+                                 use_ascii=False,
+                                 charsets=['ISO-8859-3', 'ISO-8859-9',
+                                           'WINDOWS-1254'],
+                                 alphabet=(u'abcçdefgğhıijklmnoöprsştuüvyzâîû'
+                                           u'ABCÇDEFGĞHIİJKLMNOÖPRSŞTUÜVYZÂÎÛ'),
+                                 wiki_start_pages=[u'Ana_Sayfa']),
+             'Vietnamese': Language(name='Vietnamese',
+                                    iso_code='vi',
+                                    use_ascii=False,
+                                    # Windows-1258 is the only common 8-bit
+                                    # Vietnamese encoding supported by Python.
+                                    # From Wikipedia:
+                                    # For systems that lack support for Unicode,
+                                    # dozens of 8-bit Vietnamese code pages are
+                                    # available.[1] The most common are VISCII
+                                    # (TCVN 5712:1993), VPS, and Windows-1258.[3]
+                                    # Where ASCII is required, such as when
+                                    # ensuring readability in plain text e-mail,
+                                    # Vietnamese letters are often encoded
+                                    # according to Vietnamese Quoted-Readable
+                                    # (VIQR) or VSCII Mnemonic (VSCII-MNEM),[4]
+                                    # though usage of either variable-width
+                                    # scheme has declined dramatically following
+                                    # the adoption of Unicode on the World Wide
+                                    # Web.
+                                    charsets=['WINDOWS-1258'],
+                                    alphabet=(u'aăâbcdđeêghiklmnoôơpqrstuưvxy'
+                                              u'AĂÂBCDĐEÊGHIKLMNOÔƠPQRSTUƯVXY'),
+                                    wiki_start_pages=[u'Chữ_Quốc_ngữ']),
+            }
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/sbcharsetprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/sbcharsetprober.py
new file mode 100644
index 0000000..46ba835
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/sbcharsetprober.py
@@ -0,0 +1,145 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from collections import namedtuple
+
+from .charsetprober import CharSetProber
+from .enums import CharacterCategory, ProbingState, SequenceLikelihood
+
+
+SingleByteCharSetModel = namedtuple('SingleByteCharSetModel',
+                                    ['charset_name',
+                                     'language',
+                                     'char_to_order_map',
+                                     'language_model',
+                                     'typical_positive_ratio',
+                                     'keep_ascii_letters',
+                                     'alphabet'])
+
+
+class SingleByteCharSetProber(CharSetProber):
+    SAMPLE_SIZE = 64
+    SB_ENOUGH_REL_THRESHOLD = 1024  #  0.25 * SAMPLE_SIZE^2
+    POSITIVE_SHORTCUT_THRESHOLD = 0.95
+    NEGATIVE_SHORTCUT_THRESHOLD = 0.05
+
+    def __init__(self, model, reversed=False, name_prober=None):
+        super(SingleByteCharSetProber, self).__init__()
+        self._model = model
+        # TRUE if we need to reverse every pair in the model lookup
+        self._reversed = reversed
+        # Optional auxiliary prober for name decision
+        self._name_prober = name_prober
+        self._last_order = None
+        self._seq_counters = None
+        self._total_seqs = None
+        self._total_char = None
+        self._freq_char = None
+        self.reset()
+
+    def reset(self):
+        super(SingleByteCharSetProber, self).reset()
+        # char order of last character
+        self._last_order = 255
+        self._seq_counters = [0] * SequenceLikelihood.get_num_categories()
+        self._total_seqs = 0
+        self._total_char = 0
+        # characters that fall in our sampling range
+        self._freq_char = 0
+
+    @property
+    def charset_name(self):
+        if self._name_prober:
+            return self._name_prober.charset_name
+        else:
+            return self._model.charset_name
+
+    @property
+    def language(self):
+        if self._name_prober:
+            return self._name_prober.language
+        else:
+            return self._model.language
+
+    def feed(self, byte_str):
+        # TODO: Make filter_international_words keep things in self.alphabet
+        if not self._model.keep_ascii_letters:
+            byte_str = self.filter_international_words(byte_str)
+        if not byte_str:
+            return self.state
+        char_to_order_map = self._model.char_to_order_map
+        language_model = self._model.language_model
+        for char in byte_str:
+            order = char_to_order_map.get(char, CharacterCategory.UNDEFINED)
+            # XXX: This was SYMBOL_CAT_ORDER before, with a value of 250, but
+            #      CharacterCategory.SYMBOL is actually 253, so we use CONTROL
+            #      to make it closer to the original intent. The only difference
+            #      is whether or not we count digits and control characters for
+            #      _total_char purposes.
+            if order < CharacterCategory.CONTROL:
+                self._total_char += 1
+            # TODO: Follow uchardet's lead and discount confidence for frequent
+            #       control characters.
+            #       See https://github.com/BYVoid/uchardet/commit/55b4f23971db61
+            if order < self.SAMPLE_SIZE:
+                self._freq_char += 1
+                if self._last_order < self.SAMPLE_SIZE:
+                    self._total_seqs += 1
+                    if not self._reversed:
+                        lm_cat = language_model[self._last_order][order]
+                    else:
+                        lm_cat = language_model[order][self._last_order]
+                    self._seq_counters[lm_cat] += 1
+            self._last_order = order
+
+        charset_name = self._model.charset_name
+        if self.state == ProbingState.DETECTING:
+            if self._total_seqs > self.SB_ENOUGH_REL_THRESHOLD:
+                confidence = self.get_confidence()
+                if confidence > self.POSITIVE_SHORTCUT_THRESHOLD:
+                    self.logger.debug('%s confidence = %s, we have a winner',
+                                      charset_name, confidence)
+                    self._state = ProbingState.FOUND_IT
+                elif confidence < self.NEGATIVE_SHORTCUT_THRESHOLD:
+                    self.logger.debug('%s confidence = %s, below negative '
+                                      'shortcut threshhold %s', charset_name,
+                                      confidence,
+                                      self.NEGATIVE_SHORTCUT_THRESHOLD)
+                    self._state = ProbingState.NOT_ME
+
+        return self.state
+
+    def get_confidence(self):
+        r = 0.01
+        if self._total_seqs > 0:
+            r = ((1.0 * self._seq_counters[SequenceLikelihood.POSITIVE]) /
+                 self._total_seqs / self._model.typical_positive_ratio)
+            r = r * self._freq_char / self._total_char
+            if r >= 1.0:
+                r = 0.99
+        return r
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/sbcsgroupprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/sbcsgroupprober.py
new file mode 100644
index 0000000..bdeef4e
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/sbcsgroupprober.py
@@ -0,0 +1,83 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetgroupprober import CharSetGroupProber
+from .hebrewprober import HebrewProber
+from .langbulgarianmodel import (ISO_8859_5_BULGARIAN_MODEL,
+                                 WINDOWS_1251_BULGARIAN_MODEL)
+from .langgreekmodel import ISO_8859_7_GREEK_MODEL, WINDOWS_1253_GREEK_MODEL
+from .langhebrewmodel import WINDOWS_1255_HEBREW_MODEL
+# from .langhungarianmodel import (ISO_8859_2_HUNGARIAN_MODEL,
+#                                  WINDOWS_1250_HUNGARIAN_MODEL)
+from .langrussianmodel import (IBM855_RUSSIAN_MODEL, IBM866_RUSSIAN_MODEL,
+                               ISO_8859_5_RUSSIAN_MODEL, KOI8_R_RUSSIAN_MODEL,
+                               MACCYRILLIC_RUSSIAN_MODEL,
+                               WINDOWS_1251_RUSSIAN_MODEL)
+from .langthaimodel import TIS_620_THAI_MODEL
+from .langturkishmodel import ISO_8859_9_TURKISH_MODEL
+from .sbcharsetprober import SingleByteCharSetProber
+
+
+class SBCSGroupProber(CharSetGroupProber):
+    def __init__(self):
+        super(SBCSGroupProber, self).__init__()
+        hebrew_prober = HebrewProber()
+        logical_hebrew_prober = SingleByteCharSetProber(WINDOWS_1255_HEBREW_MODEL,
+                                                        False, hebrew_prober)
+        # TODO: See if using ISO-8859-8 Hebrew model works better here, since
+        #       it's actually the visual one
+        visual_hebrew_prober = SingleByteCharSetProber(WINDOWS_1255_HEBREW_MODEL,
+                                                       True, hebrew_prober)
+        hebrew_prober.set_model_probers(logical_hebrew_prober,
+                                        visual_hebrew_prober)
+        # TODO: ORDER MATTERS HERE. I changed the order vs what was in master
+        #       and several tests failed that did not before. Some thought
+        #       should be put into the ordering, and we should consider making
+        #       order not matter here, because that is very counter-intuitive.
+        self.probers = [
+            SingleByteCharSetProber(WINDOWS_1251_RUSSIAN_MODEL),
+            SingleByteCharSetProber(KOI8_R_RUSSIAN_MODEL),
+            SingleByteCharSetProber(ISO_8859_5_RUSSIAN_MODEL),
+            SingleByteCharSetProber(MACCYRILLIC_RUSSIAN_MODEL),
+            SingleByteCharSetProber(IBM866_RUSSIAN_MODEL),
+            SingleByteCharSetProber(IBM855_RUSSIAN_MODEL),
+            SingleByteCharSetProber(ISO_8859_7_GREEK_MODEL),
+            SingleByteCharSetProber(WINDOWS_1253_GREEK_MODEL),
+            SingleByteCharSetProber(ISO_8859_5_BULGARIAN_MODEL),
+            SingleByteCharSetProber(WINDOWS_1251_BULGARIAN_MODEL),
+            # TODO: Restore Hungarian encodings (iso-8859-2 and windows-1250)
+            #       after we retrain model.
+            # SingleByteCharSetProber(ISO_8859_2_HUNGARIAN_MODEL),
+            # SingleByteCharSetProber(WINDOWS_1250_HUNGARIAN_MODEL),
+            SingleByteCharSetProber(TIS_620_THAI_MODEL),
+            SingleByteCharSetProber(ISO_8859_9_TURKISH_MODEL),
+            hebrew_prober,
+            logical_hebrew_prober,
+            visual_hebrew_prober,
+        ]
+        self.reset()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/sjisprober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/sjisprober.py
new file mode 100644
index 0000000..9e29623
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/sjisprober.py
@@ -0,0 +1,92 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import SJISDistributionAnalysis
+from .jpcntx import SJISContextAnalysis
+from .mbcssm import SJIS_SM_MODEL
+from .enums import ProbingState, MachineState
+
+
+class SJISProber(MultiByteCharSetProber):
+    def __init__(self):
+        super(SJISProber, self).__init__()
+        self.coding_sm = CodingStateMachine(SJIS_SM_MODEL)
+        self.distribution_analyzer = SJISDistributionAnalysis()
+        self.context_analyzer = SJISContextAnalysis()
+        self.reset()
+
+    def reset(self):
+        super(SJISProber, self).reset()
+        self.context_analyzer.reset()
+
+    @property
+    def charset_name(self):
+        return self.context_analyzer.charset_name
+
+    @property
+    def language(self):
+        return "Japanese"
+
+    def feed(self, byte_str):
+        for i in range(len(byte_str)):
+            coding_state = self.coding_sm.next_state(byte_str[i])
+            if coding_state == MachineState.ERROR:
+                self.logger.debug('%s %s prober hit error at byte %s',
+                                  self.charset_name, self.language, i)
+                self._state = ProbingState.NOT_ME
+                break
+            elif coding_state == MachineState.ITS_ME:
+                self._state = ProbingState.FOUND_IT
+                break
+            elif coding_state == MachineState.START:
+                char_len = self.coding_sm.get_current_charlen()
+                if i == 0:
+                    self._last_char[1] = byte_str[0]
+                    self.context_analyzer.feed(self._last_char[2 - char_len:],
+                                               char_len)
+                    self.distribution_analyzer.feed(self._last_char, char_len)
+                else:
+                    self.context_analyzer.feed(byte_str[i + 1 - char_len:i + 3
+                                                        - char_len], char_len)
+                    self.distribution_analyzer.feed(byte_str[i - 1:i + 1],
+                                                    char_len)
+
+        self._last_char[0] = byte_str[-1]
+
+        if self.state == ProbingState.DETECTING:
+            if (self.context_analyzer.got_enough_data() and
+               (self.get_confidence() > self.SHORTCUT_THRESHOLD)):
+                self._state = ProbingState.FOUND_IT
+
+        return self.state
+
+    def get_confidence(self):
+        context_conf = self.context_analyzer.get_confidence()
+        distrib_conf = self.distribution_analyzer.get_confidence()
+        return max(context_conf, distrib_conf)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/universaldetector.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/universaldetector.py
new file mode 100644
index 0000000..055a8ac
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/universaldetector.py
@@ -0,0 +1,286 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+"""
+Module containing the UniversalDetector detector class, which is the primary
+class a user of ``chardet`` should use.
+
+:author: Mark Pilgrim (initial port to Python)
+:author: Shy Shalom (original C code)
+:author: Dan Blanchard (major refactoring for 3.0)
+:author: Ian Cordasco
+"""
+
+
+import codecs
+import logging
+import re
+
+from .charsetgroupprober import CharSetGroupProber
+from .enums import InputState, LanguageFilter, ProbingState
+from .escprober import EscCharSetProber
+from .latin1prober import Latin1Prober
+from .mbcsgroupprober import MBCSGroupProber
+from .sbcsgroupprober import SBCSGroupProber
+
+
+class UniversalDetector(object):
+    """
+    The ``UniversalDetector`` class underlies the ``chardet.detect`` function
+    and coordinates all of the different charset probers.
+
+    To get a ``dict`` containing an encoding and its confidence, you can simply
+    run:
+
+    .. code::
+
+            u = UniversalDetector()
+            u.feed(some_bytes)
+            u.close()
+            detected = u.result
+
+    """
+
+    MINIMUM_THRESHOLD = 0.20
+    HIGH_BYTE_DETECTOR = re.compile(b'[\x80-\xFF]')
+    ESC_DETECTOR = re.compile(b'(\033|~{)')
+    WIN_BYTE_DETECTOR = re.compile(b'[\x80-\x9F]')
+    ISO_WIN_MAP = {'iso-8859-1': 'Windows-1252',
+                   'iso-8859-2': 'Windows-1250',
+                   'iso-8859-5': 'Windows-1251',
+                   'iso-8859-6': 'Windows-1256',
+                   'iso-8859-7': 'Windows-1253',
+                   'iso-8859-8': 'Windows-1255',
+                   'iso-8859-9': 'Windows-1254',
+                   'iso-8859-13': 'Windows-1257'}
+
+    def __init__(self, lang_filter=LanguageFilter.ALL):
+        self._esc_charset_prober = None
+        self._charset_probers = []
+        self.result = None
+        self.done = None
+        self._got_data = None
+        self._input_state = None
+        self._last_char = None
+        self.lang_filter = lang_filter
+        self.logger = logging.getLogger(__name__)
+        self._has_win_bytes = None
+        self.reset()
+
+    def reset(self):
+        """
+        Reset the UniversalDetector and all of its probers back to their
+        initial states.  This is called by ``__init__``, so you only need to
+        call this directly in between analyses of different documents.
+        """
+        self.result = {'encoding': None, 'confidence': 0.0, 'language': None}
+        self.done = False
+        self._got_data = False
+        self._has_win_bytes = False
+        self._input_state = InputState.PURE_ASCII
+        self._last_char = b''
+        if self._esc_charset_prober:
+            self._esc_charset_prober.reset()
+        for prober in self._charset_probers:
+            prober.reset()
+
+    def feed(self, byte_str):
+        """
+        Takes a chunk of a document and feeds it through all of the relevant
+        charset probers.
+
+        After calling ``feed``, you can check the value of the ``done``
+        attribute to see if you need to continue feeding the
+        ``UniversalDetector`` more data, or if it has made a prediction
+        (in the ``result`` attribute).
+
+        .. note::
+           You should always call ``close`` when you're done feeding in your
+           document if ``done`` is not already ``True``.
+        """
+        if self.done:
+            return
+
+        if not len(byte_str):
+            return
+
+        if not isinstance(byte_str, bytearray):
+            byte_str = bytearray(byte_str)
+
+        # First check for known BOMs, since these are guaranteed to be correct
+        if not self._got_data:
+            # If the data starts with BOM, we know it is UTF
+            if byte_str.startswith(codecs.BOM_UTF8):
+                # EF BB BF  UTF-8 with BOM
+                self.result = {'encoding': "UTF-8-SIG",
+                               'confidence': 1.0,
+                               'language': ''}
+            elif byte_str.startswith((codecs.BOM_UTF32_LE,
+                                      codecs.BOM_UTF32_BE)):
+                # FF FE 00 00  UTF-32, little-endian BOM
+                # 00 00 FE FF  UTF-32, big-endian BOM
+                self.result = {'encoding': "UTF-32",
+                               'confidence': 1.0,
+                               'language': ''}
+            elif byte_str.startswith(b'\xFE\xFF\x00\x00'):
+                # FE FF 00 00  UCS-4, unusual octet order BOM (3412)
+                self.result = {'encoding': "X-ISO-10646-UCS-4-3412",
+                               'confidence': 1.0,
+                               'language': ''}
+            elif byte_str.startswith(b'\x00\x00\xFF\xFE'):
+                # 00 00 FF FE  UCS-4, unusual octet order BOM (2143)
+                self.result = {'encoding': "X-ISO-10646-UCS-4-2143",
+                               'confidence': 1.0,
+                               'language': ''}
+            elif byte_str.startswith((codecs.BOM_LE, codecs.BOM_BE)):
+                # FF FE  UTF-16, little endian BOM
+                # FE FF  UTF-16, big endian BOM
+                self.result = {'encoding': "UTF-16",
+                               'confidence': 1.0,
+                               'language': ''}
+
+            self._got_data = True
+            if self.result['encoding'] is not None:
+                self.done = True
+                return
+
+        # If none of those matched and we've only see ASCII so far, check
+        # for high bytes and escape sequences
+        if self._input_state == InputState.PURE_ASCII:
+            if self.HIGH_BYTE_DETECTOR.search(byte_str):
+                self._input_state = InputState.HIGH_BYTE
+            elif self._input_state == InputState.PURE_ASCII and \
+                    self.ESC_DETECTOR.search(self._last_char + byte_str):
+                self._input_state = InputState.ESC_ASCII
+
+        self._last_char = byte_str[-1:]
+
+        # If we've seen escape sequences, use the EscCharSetProber, which
+        # uses a simple state machine to check for known escape sequences in
+        # HZ and ISO-2022 encodings, since those are the only encodings that
+        # use such sequences.
+        if self._input_state == InputState.ESC_ASCII:
+            if not self._esc_charset_prober:
+                self._esc_charset_prober = EscCharSetProber(self.lang_filter)
+            if self._esc_charset_prober.feed(byte_str) == ProbingState.FOUND_IT:
+                self.result = {'encoding':
+                               self._esc_charset_prober.charset_name,
+                               'confidence':
+                               self._esc_charset_prober.get_confidence(),
+                               'language':
+                               self._esc_charset_prober.language}
+                self.done = True
+        # If we've seen high bytes (i.e., those with values greater than 127),
+        # we need to do more complicated checks using all our multi-byte and
+        # single-byte probers that are left.  The single-byte probers
+        # use character bigram distributions to determine the encoding, whereas
+        # the multi-byte probers use a combination of character unigram and
+        # bigram distributions.
+        elif self._input_state == InputState.HIGH_BYTE:
+            if not self._charset_probers:
+                self._charset_probers = [MBCSGroupProber(self.lang_filter)]
+                # If we're checking non-CJK encodings, use single-byte prober
+                if self.lang_filter & LanguageFilter.NON_CJK:
+                    self._charset_probers.append(SBCSGroupProber())
+                self._charset_probers.append(Latin1Prober())
+            for prober in self._charset_probers:
+                if prober.feed(byte_str) == ProbingState.FOUND_IT:
+                    self.result = {'encoding': prober.charset_name,
+                                   'confidence': prober.get_confidence(),
+                                   'language': prober.language}
+                    self.done = True
+                    break
+            if self.WIN_BYTE_DETECTOR.search(byte_str):
+                self._has_win_bytes = True
+
+    def close(self):
+        """
+        Stop analyzing the current document and come up with a final
+        prediction.
+
+        :returns:  The ``result`` attribute, a ``dict`` with the keys
+                   `encoding`, `confidence`, and `language`.
+        """
+        # Don't bother with checks if we're already done
+        if self.done:
+            return self.result
+        self.done = True
+
+        if not self._got_data:
+            self.logger.debug('no data received!')
+
+        # Default to ASCII if it is all we've seen so far
+        elif self._input_state == InputState.PURE_ASCII:
+            self.result = {'encoding': 'ascii',
+                           'confidence': 1.0,
+                           'language': ''}
+
+        # If we have seen non-ASCII, return the best that met MINIMUM_THRESHOLD
+        elif self._input_state == InputState.HIGH_BYTE:
+            prober_confidence = None
+            max_prober_confidence = 0.0
+            max_prober = None
+            for prober in self._charset_probers:
+                if not prober:
+                    continue
+                prober_confidence = prober.get_confidence()
+                if prober_confidence > max_prober_confidence:
+                    max_prober_confidence = prober_confidence
+                    max_prober = prober
+            if max_prober and (max_prober_confidence > self.MINIMUM_THRESHOLD):
+                charset_name = max_prober.charset_name
+                lower_charset_name = max_prober.charset_name.lower()
+                confidence = max_prober.get_confidence()
+                # Use Windows encoding name instead of ISO-8859 if we saw any
+                # extra Windows-specific bytes
+                if lower_charset_name.startswith('iso-8859'):
+                    if self._has_win_bytes:
+                        charset_name = self.ISO_WIN_MAP.get(lower_charset_name,
+                                                            charset_name)
+                self.result = {'encoding': charset_name,
+                               'confidence': confidence,
+                               'language': max_prober.language}
+
+        # Log all prober confidences if none met MINIMUM_THRESHOLD
+        if self.logger.getEffectiveLevel() <= logging.DEBUG:
+            if self.result['encoding'] is None:
+                self.logger.debug('no probers hit minimum threshold')
+                for group_prober in self._charset_probers:
+                    if not group_prober:
+                        continue
+                    if isinstance(group_prober, CharSetGroupProber):
+                        for prober in group_prober.probers:
+                            self.logger.debug('%s %s confidence = %s',
+                                              prober.charset_name,
+                                              prober.language,
+                                              prober.get_confidence())
+                    else:
+                        self.logger.debug('%s %s confidence = %s',
+                                          group_prober.charset_name,
+                                          group_prober.language,
+                                          group_prober.get_confidence())
+        return self.result
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/utf8prober.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/utf8prober.py
new file mode 100644
index 0000000..6c3196c
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/utf8prober.py
@@ -0,0 +1,82 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetprober import CharSetProber
+from .enums import ProbingState, MachineState
+from .codingstatemachine import CodingStateMachine
+from .mbcssm import UTF8_SM_MODEL
+
+
+
+class UTF8Prober(CharSetProber):
+    ONE_CHAR_PROB = 0.5
+
+    def __init__(self):
+        super(UTF8Prober, self).__init__()
+        self.coding_sm = CodingStateMachine(UTF8_SM_MODEL)
+        self._num_mb_chars = None
+        self.reset()
+
+    def reset(self):
+        super(UTF8Prober, self).reset()
+        self.coding_sm.reset()
+        self._num_mb_chars = 0
+
+    @property
+    def charset_name(self):
+        return "utf-8"
+
+    @property
+    def language(self):
+        return ""
+
+    def feed(self, byte_str):
+        for c in byte_str:
+            coding_state = self.coding_sm.next_state(c)
+            if coding_state == MachineState.ERROR:
+                self._state = ProbingState.NOT_ME
+                break
+            elif coding_state == MachineState.ITS_ME:
+                self._state = ProbingState.FOUND_IT
+                break
+            elif coding_state == MachineState.START:
+                if self.coding_sm.get_current_charlen() >= 2:
+                    self._num_mb_chars += 1
+
+        if self.state == ProbingState.DETECTING:
+            if self.get_confidence() > self.SHORTCUT_THRESHOLD:
+                self._state = ProbingState.FOUND_IT
+
+        return self.state
+
+    def get_confidence(self):
+        unlike = 0.99
+        if self._num_mb_chars < 6:
+            unlike *= self.ONE_CHAR_PROB ** self._num_mb_chars
+            return 1.0 - unlike
+        else:
+            return unlike
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/version.py b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/version.py
new file mode 100644
index 0000000..70369b9
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/chardet/version.py
@@ -0,0 +1,9 @@
+"""
+This module exists only to simplify retrieving the version number of chardet
+from within setup.py and from chardet subpackages.
+
+:author: Dan Blanchard (dan.blanchard@gmail.com)
+"""
+
+__version__ = "4.0.0"
+VERSION = __version__.split('.')
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/__init__.py
new file mode 100644
index 0000000..b149ed7
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/__init__.py
@@ -0,0 +1,6 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+from .initialise import init, deinit, reinit, colorama_text
+from .ansi import Fore, Back, Style, Cursor
+from .ansitowin32 import AnsiToWin32
+
+__version__ = '0.4.4'
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/ansi.py b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/ansi.py
new file mode 100644
index 0000000..11ec695
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/ansi.py
@@ -0,0 +1,102 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+'''
+This module generates ANSI character codes to printing colors to terminals.
+See: http://en.wikipedia.org/wiki/ANSI_escape_code
+'''
+
+CSI = '\033['
+OSC = '\033]'
+BEL = '\a'
+
+
+def code_to_chars(code):
+    return CSI + str(code) + 'm'
+
+def set_title(title):
+    return OSC + '2;' + title + BEL
+
+def clear_screen(mode=2):
+    return CSI + str(mode) + 'J'
+
+def clear_line(mode=2):
+    return CSI + str(mode) + 'K'
+
+
+class AnsiCodes(object):
+    def __init__(self):
+        # the subclasses declare class attributes which are numbers.
+        # Upon instantiation we define instance attributes, which are the same
+        # as the class attributes but wrapped with the ANSI escape sequence
+        for name in dir(self):
+            if not name.startswith('_'):
+                value = getattr(self, name)
+                setattr(self, name, code_to_chars(value))
+
+
+class AnsiCursor(object):
+    def UP(self, n=1):
+        return CSI + str(n) + 'A'
+    def DOWN(self, n=1):
+        return CSI + str(n) + 'B'
+    def FORWARD(self, n=1):
+        return CSI + str(n) + 'C'
+    def BACK(self, n=1):
+        return CSI + str(n) + 'D'
+    def POS(self, x=1, y=1):
+        return CSI + str(y) + ';' + str(x) + 'H'
+
+
+class AnsiFore(AnsiCodes):
+    BLACK           = 30
+    RED             = 31
+    GREEN           = 32
+    YELLOW          = 33
+    BLUE            = 34
+    MAGENTA         = 35
+    CYAN            = 36
+    WHITE           = 37
+    RESET           = 39
+
+    # These are fairly well supported, but not part of the standard.
+    LIGHTBLACK_EX   = 90
+    LIGHTRED_EX     = 91
+    LIGHTGREEN_EX   = 92
+    LIGHTYELLOW_EX  = 93
+    LIGHTBLUE_EX    = 94
+    LIGHTMAGENTA_EX = 95
+    LIGHTCYAN_EX    = 96
+    LIGHTWHITE_EX   = 97
+
+
+class AnsiBack(AnsiCodes):
+    BLACK           = 40
+    RED             = 41
+    GREEN           = 42
+    YELLOW          = 43
+    BLUE            = 44
+    MAGENTA         = 45
+    CYAN            = 46
+    WHITE           = 47
+    RESET           = 49
+
+    # These are fairly well supported, but not part of the standard.
+    LIGHTBLACK_EX   = 100
+    LIGHTRED_EX     = 101
+    LIGHTGREEN_EX   = 102
+    LIGHTYELLOW_EX  = 103
+    LIGHTBLUE_EX    = 104
+    LIGHTMAGENTA_EX = 105
+    LIGHTCYAN_EX    = 106
+    LIGHTWHITE_EX   = 107
+
+
+class AnsiStyle(AnsiCodes):
+    BRIGHT    = 1
+    DIM       = 2
+    NORMAL    = 22
+    RESET_ALL = 0
+
+Fore   = AnsiFore()
+Back   = AnsiBack()
+Style  = AnsiStyle()
+Cursor = AnsiCursor()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/ansitowin32.py b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/ansitowin32.py
new file mode 100644
index 0000000..6039a05
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/ansitowin32.py
@@ -0,0 +1,258 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+import re
+import sys
+import os
+
+from .ansi import AnsiFore, AnsiBack, AnsiStyle, Style, BEL
+from .winterm import WinTerm, WinColor, WinStyle
+from .win32 import windll, winapi_test
+
+
+winterm = None
+if windll is not None:
+    winterm = WinTerm()
+
+
+class StreamWrapper(object):
+    '''
+    Wraps a stream (such as stdout), acting as a transparent proxy for all
+    attribute access apart from method 'write()', which is delegated to our
+    Converter instance.
+    '''
+    def __init__(self, wrapped, converter):
+        # double-underscore everything to prevent clashes with names of
+        # attributes on the wrapped stream object.
+        self.__wrapped = wrapped
+        self.__convertor = converter
+
+    def __getattr__(self, name):
+        return getattr(self.__wrapped, name)
+
+    def __enter__(self, *args, **kwargs):
+        # special method lookup bypasses __getattr__/__getattribute__, see
+        # https://stackoverflow.com/questions/12632894/why-doesnt-getattr-work-with-exit
+        # thus, contextlib magic methods are not proxied via __getattr__
+        return self.__wrapped.__enter__(*args, **kwargs)
+
+    def __exit__(self, *args, **kwargs):
+        return self.__wrapped.__exit__(*args, **kwargs)
+
+    def write(self, text):
+        self.__convertor.write(text)
+
+    def isatty(self):
+        stream = self.__wrapped
+        if 'PYCHARM_HOSTED' in os.environ:
+            if stream is not None and (stream is sys.__stdout__ or stream is sys.__stderr__):
+                return True
+        try:
+            stream_isatty = stream.isatty
+        except AttributeError:
+            return False
+        else:
+            return stream_isatty()
+
+    @property
+    def closed(self):
+        stream = self.__wrapped
+        try:
+            return stream.closed
+        except AttributeError:
+            return True
+
+
+class AnsiToWin32(object):
+    '''
+    Implements a 'write()' method which, on Windows, will strip ANSI character
+    sequences from the text, and if outputting to a tty, will convert them into
+    win32 function calls.
+    '''
+    ANSI_CSI_RE = re.compile('\001?\033\\[((?:\\d|;)*)([a-zA-Z])\002?')   # Control Sequence Introducer
+    ANSI_OSC_RE = re.compile('\001?\033\\]([^\a]*)(\a)\002?')             # Operating System Command
+
+    def __init__(self, wrapped, convert=None, strip=None, autoreset=False):
+        # The wrapped stream (normally sys.stdout or sys.stderr)
+        self.wrapped = wrapped
+
+        # should we reset colors to defaults after every .write()
+        self.autoreset = autoreset
+
+        # create the proxy wrapping our output stream
+        self.stream = StreamWrapper(wrapped, self)
+
+        on_windows = os.name == 'nt'
+        # We test if the WinAPI works, because even if we are on Windows
+        # we may be using a terminal that doesn't support the WinAPI
+        # (e.g. Cygwin Terminal). In this case it's up to the terminal
+        # to support the ANSI codes.
+        conversion_supported = on_windows and winapi_test()
+
+        # should we strip ANSI sequences from our output?
+        if strip is None:
+            strip = conversion_supported or (not self.stream.closed and not self.stream.isatty())
+        self.strip = strip
+
+        # should we should convert ANSI sequences into win32 calls?
+        if convert is None:
+            convert = conversion_supported and not self.stream.closed and self.stream.isatty()
+        self.convert = convert
+
+        # dict of ansi codes to win32 functions and parameters
+        self.win32_calls = self.get_win32_calls()
+
+        # are we wrapping stderr?
+        self.on_stderr = self.wrapped is sys.stderr
+
+    def should_wrap(self):
+        '''
+        True if this class is actually needed. If false, then the output
+        stream will not be affected, nor will win32 calls be issued, so
+        wrapping stdout is not actually required. This will generally be
+        False on non-Windows platforms, unless optional functionality like
+        autoreset has been requested using kwargs to init()
+        '''
+        return self.convert or self.strip or self.autoreset
+
+    def get_win32_calls(self):
+        if self.convert and winterm:
+            return {
+                AnsiStyle.RESET_ALL: (winterm.reset_all, ),
+                AnsiStyle.BRIGHT: (winterm.style, WinStyle.BRIGHT),
+                AnsiStyle.DIM: (winterm.style, WinStyle.NORMAL),
+                AnsiStyle.NORMAL: (winterm.style, WinStyle.NORMAL),
+                AnsiFore.BLACK: (winterm.fore, WinColor.BLACK),
+                AnsiFore.RED: (winterm.fore, WinColor.RED),
+                AnsiFore.GREEN: (winterm.fore, WinColor.GREEN),
+                AnsiFore.YELLOW: (winterm.fore, WinColor.YELLOW),
+                AnsiFore.BLUE: (winterm.fore, WinColor.BLUE),
+                AnsiFore.MAGENTA: (winterm.fore, WinColor.MAGENTA),
+                AnsiFore.CYAN: (winterm.fore, WinColor.CYAN),
+                AnsiFore.WHITE: (winterm.fore, WinColor.GREY),
+                AnsiFore.RESET: (winterm.fore, ),
+                AnsiFore.LIGHTBLACK_EX: (winterm.fore, WinColor.BLACK, True),
+                AnsiFore.LIGHTRED_EX: (winterm.fore, WinColor.RED, True),
+                AnsiFore.LIGHTGREEN_EX: (winterm.fore, WinColor.GREEN, True),
+                AnsiFore.LIGHTYELLOW_EX: (winterm.fore, WinColor.YELLOW, True),
+                AnsiFore.LIGHTBLUE_EX: (winterm.fore, WinColor.BLUE, True),
+                AnsiFore.LIGHTMAGENTA_EX: (winterm.fore, WinColor.MAGENTA, True),
+                AnsiFore.LIGHTCYAN_EX: (winterm.fore, WinColor.CYAN, True),
+                AnsiFore.LIGHTWHITE_EX: (winterm.fore, WinColor.GREY, True),
+                AnsiBack.BLACK: (winterm.back, WinColor.BLACK),
+                AnsiBack.RED: (winterm.back, WinColor.RED),
+                AnsiBack.GREEN: (winterm.back, WinColor.GREEN),
+                AnsiBack.YELLOW: (winterm.back, WinColor.YELLOW),
+                AnsiBack.BLUE: (winterm.back, WinColor.BLUE),
+                AnsiBack.MAGENTA: (winterm.back, WinColor.MAGENTA),
+                AnsiBack.CYAN: (winterm.back, WinColor.CYAN),
+                AnsiBack.WHITE: (winterm.back, WinColor.GREY),
+                AnsiBack.RESET: (winterm.back, ),
+                AnsiBack.LIGHTBLACK_EX: (winterm.back, WinColor.BLACK, True),
+                AnsiBack.LIGHTRED_EX: (winterm.back, WinColor.RED, True),
+                AnsiBack.LIGHTGREEN_EX: (winterm.back, WinColor.GREEN, True),
+                AnsiBack.LIGHTYELLOW_EX: (winterm.back, WinColor.YELLOW, True),
+                AnsiBack.LIGHTBLUE_EX: (winterm.back, WinColor.BLUE, True),
+                AnsiBack.LIGHTMAGENTA_EX: (winterm.back, WinColor.MAGENTA, True),
+                AnsiBack.LIGHTCYAN_EX: (winterm.back, WinColor.CYAN, True),
+                AnsiBack.LIGHTWHITE_EX: (winterm.back, WinColor.GREY, True),
+            }
+        return dict()
+
+    def write(self, text):
+        if self.strip or self.convert:
+            self.write_and_convert(text)
+        else:
+            self.wrapped.write(text)
+            self.wrapped.flush()
+        if self.autoreset:
+            self.reset_all()
+
+
+    def reset_all(self):
+        if self.convert:
+            self.call_win32('m', (0,))
+        elif not self.strip and not self.stream.closed:
+            self.wrapped.write(Style.RESET_ALL)
+
+
+    def write_and_convert(self, text):
+        '''
+        Write the given text to our wrapped stream, stripping any ANSI
+        sequences from the text, and optionally converting them into win32
+        calls.
+        '''
+        cursor = 0
+        text = self.convert_osc(text)
+        for match in self.ANSI_CSI_RE.finditer(text):
+            start, end = match.span()
+            self.write_plain_text(text, cursor, start)
+            self.convert_ansi(*match.groups())
+            cursor = end
+        self.write_plain_text(text, cursor, len(text))
+
+
+    def write_plain_text(self, text, start, end):
+        if start < end:
+            self.wrapped.write(text[start:end])
+            self.wrapped.flush()
+
+
+    def convert_ansi(self, paramstring, command):
+        if self.convert:
+            params = self.extract_params(command, paramstring)
+            self.call_win32(command, params)
+
+
+    def extract_params(self, command, paramstring):
+        if command in 'Hf':
+            params = tuple(int(p) if len(p) != 0 else 1 for p in paramstring.split(';'))
+            while len(params) < 2:
+                # defaults:
+                params = params + (1,)
+        else:
+            params = tuple(int(p) for p in paramstring.split(';') if len(p) != 0)
+            if len(params) == 0:
+                # defaults:
+                if command in 'JKm':
+                    params = (0,)
+                elif command in 'ABCD':
+                    params = (1,)
+
+        return params
+
+
+    def call_win32(self, command, params):
+        if command == 'm':
+            for param in params:
+                if param in self.win32_calls:
+                    func_args = self.win32_calls[param]
+                    func = func_args[0]
+                    args = func_args[1:]
+                    kwargs = dict(on_stderr=self.on_stderr)
+                    func(*args, **kwargs)
+        elif command in 'J':
+            winterm.erase_screen(params[0], on_stderr=self.on_stderr)
+        elif command in 'K':
+            winterm.erase_line(params[0], on_stderr=self.on_stderr)
+        elif command in 'Hf':     # cursor position - absolute
+            winterm.set_cursor_position(params, on_stderr=self.on_stderr)
+        elif command in 'ABCD':   # cursor position - relative
+            n = params[0]
+            # A - up, B - down, C - forward, D - back
+            x, y = {'A': (0, -n), 'B': (0, n), 'C': (n, 0), 'D': (-n, 0)}[command]
+            winterm.cursor_adjust(x, y, on_stderr=self.on_stderr)
+
+
+    def convert_osc(self, text):
+        for match in self.ANSI_OSC_RE.finditer(text):
+            start, end = match.span()
+            text = text[:start] + text[end:]
+            paramstring, command = match.groups()
+            if command == BEL:
+                if paramstring.count(";") == 1:
+                    params = paramstring.split(";")
+                    # 0 - change title and icon (we will only change title)
+                    # 1 - change icon (we don't support this)
+                    # 2 - change title
+                    if params[0] in '02':
+                        winterm.set_title(params[1])
+        return text
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/initialise.py b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/initialise.py
new file mode 100644
index 0000000..430d066
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/initialise.py
@@ -0,0 +1,80 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+import atexit
+import contextlib
+import sys
+
+from .ansitowin32 import AnsiToWin32
+
+
+orig_stdout = None
+orig_stderr = None
+
+wrapped_stdout = None
+wrapped_stderr = None
+
+atexit_done = False
+
+
+def reset_all():
+    if AnsiToWin32 is not None:    # Issue #74: objects might become None at exit
+        AnsiToWin32(orig_stdout).reset_all()
+
+
+def init(autoreset=False, convert=None, strip=None, wrap=True):
+
+    if not wrap and any([autoreset, convert, strip]):
+        raise ValueError('wrap=False conflicts with any other arg=True')
+
+    global wrapped_stdout, wrapped_stderr
+    global orig_stdout, orig_stderr
+
+    orig_stdout = sys.stdout
+    orig_stderr = sys.stderr
+
+    if sys.stdout is None:
+        wrapped_stdout = None
+    else:
+        sys.stdout = wrapped_stdout = \
+            wrap_stream(orig_stdout, convert, strip, autoreset, wrap)
+    if sys.stderr is None:
+        wrapped_stderr = None
+    else:
+        sys.stderr = wrapped_stderr = \
+            wrap_stream(orig_stderr, convert, strip, autoreset, wrap)
+
+    global atexit_done
+    if not atexit_done:
+        atexit.register(reset_all)
+        atexit_done = True
+
+
+def deinit():
+    if orig_stdout is not None:
+        sys.stdout = orig_stdout
+    if orig_stderr is not None:
+        sys.stderr = orig_stderr
+
+
+@contextlib.contextmanager
+def colorama_text(*args, **kwargs):
+    init(*args, **kwargs)
+    try:
+        yield
+    finally:
+        deinit()
+
+
+def reinit():
+    if wrapped_stdout is not None:
+        sys.stdout = wrapped_stdout
+    if wrapped_stderr is not None:
+        sys.stderr = wrapped_stderr
+
+
+def wrap_stream(stream, convert, strip, autoreset, wrap):
+    if wrap:
+        wrapper = AnsiToWin32(stream,
+            convert=convert, strip=strip, autoreset=autoreset)
+        if wrapper.should_wrap():
+            stream = wrapper.stream
+    return stream
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/win32.py b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/win32.py
new file mode 100644
index 0000000..c2d8360
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/win32.py
@@ -0,0 +1,152 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+
+# from winbase.h
+STDOUT = -11
+STDERR = -12
+
+try:
+    import ctypes
+    from ctypes import LibraryLoader
+    windll = LibraryLoader(ctypes.WinDLL)
+    from ctypes import wintypes
+except (AttributeError, ImportError):
+    windll = None
+    SetConsoleTextAttribute = lambda *_: None
+    winapi_test = lambda *_: None
+else:
+    from ctypes import byref, Structure, c_char, POINTER
+
+    COORD = wintypes._COORD
+
+    class CONSOLE_SCREEN_BUFFER_INFO(Structure):
+        """struct in wincon.h."""
+        _fields_ = [
+            ("dwSize", COORD),
+            ("dwCursorPosition", COORD),
+            ("wAttributes", wintypes.WORD),
+            ("srWindow", wintypes.SMALL_RECT),
+            ("dwMaximumWindowSize", COORD),
+        ]
+        def __str__(self):
+            return '(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d)' % (
+                self.dwSize.Y, self.dwSize.X
+                , self.dwCursorPosition.Y, self.dwCursorPosition.X
+                , self.wAttributes
+                , self.srWindow.Top, self.srWindow.Left, self.srWindow.Bottom, self.srWindow.Right
+                , self.dwMaximumWindowSize.Y, self.dwMaximumWindowSize.X
+            )
+
+    _GetStdHandle = windll.kernel32.GetStdHandle
+    _GetStdHandle.argtypes = [
+        wintypes.DWORD,
+    ]
+    _GetStdHandle.restype = wintypes.HANDLE
+
+    _GetConsoleScreenBufferInfo = windll.kernel32.GetConsoleScreenBufferInfo
+    _GetConsoleScreenBufferInfo.argtypes = [
+        wintypes.HANDLE,
+        POINTER(CONSOLE_SCREEN_BUFFER_INFO),
+    ]
+    _GetConsoleScreenBufferInfo.restype = wintypes.BOOL
+
+    _SetConsoleTextAttribute = windll.kernel32.SetConsoleTextAttribute
+    _SetConsoleTextAttribute.argtypes = [
+        wintypes.HANDLE,
+        wintypes.WORD,
+    ]
+    _SetConsoleTextAttribute.restype = wintypes.BOOL
+
+    _SetConsoleCursorPosition = windll.kernel32.SetConsoleCursorPosition
+    _SetConsoleCursorPosition.argtypes = [
+        wintypes.HANDLE,
+        COORD,
+    ]
+    _SetConsoleCursorPosition.restype = wintypes.BOOL
+
+    _FillConsoleOutputCharacterA = windll.kernel32.FillConsoleOutputCharacterA
+    _FillConsoleOutputCharacterA.argtypes = [
+        wintypes.HANDLE,
+        c_char,
+        wintypes.DWORD,
+        COORD,
+        POINTER(wintypes.DWORD),
+    ]
+    _FillConsoleOutputCharacterA.restype = wintypes.BOOL
+
+    _FillConsoleOutputAttribute = windll.kernel32.FillConsoleOutputAttribute
+    _FillConsoleOutputAttribute.argtypes = [
+        wintypes.HANDLE,
+        wintypes.WORD,
+        wintypes.DWORD,
+        COORD,
+        POINTER(wintypes.DWORD),
+    ]
+    _FillConsoleOutputAttribute.restype = wintypes.BOOL
+
+    _SetConsoleTitleW = windll.kernel32.SetConsoleTitleW
+    _SetConsoleTitleW.argtypes = [
+        wintypes.LPCWSTR
+    ]
+    _SetConsoleTitleW.restype = wintypes.BOOL
+
+    def _winapi_test(handle):
+        csbi = CONSOLE_SCREEN_BUFFER_INFO()
+        success = _GetConsoleScreenBufferInfo(
+            handle, byref(csbi))
+        return bool(success)
+
+    def winapi_test():
+        return any(_winapi_test(h) for h in
+                   (_GetStdHandle(STDOUT), _GetStdHandle(STDERR)))
+
+    def GetConsoleScreenBufferInfo(stream_id=STDOUT):
+        handle = _GetStdHandle(stream_id)
+        csbi = CONSOLE_SCREEN_BUFFER_INFO()
+        success = _GetConsoleScreenBufferInfo(
+            handle, byref(csbi))
+        return csbi
+
+    def SetConsoleTextAttribute(stream_id, attrs):
+        handle = _GetStdHandle(stream_id)
+        return _SetConsoleTextAttribute(handle, attrs)
+
+    def SetConsoleCursorPosition(stream_id, position, adjust=True):
+        position = COORD(*position)
+        # If the position is out of range, do nothing.
+        if position.Y <= 0 or position.X <= 0:
+            return
+        # Adjust for Windows' SetConsoleCursorPosition:
+        #    1. being 0-based, while ANSI is 1-based.
+        #    2. expecting (x,y), while ANSI uses (y,x).
+        adjusted_position = COORD(position.Y - 1, position.X - 1)
+        if adjust:
+            # Adjust for viewport's scroll position
+            sr = GetConsoleScreenBufferInfo(STDOUT).srWindow
+            adjusted_position.Y += sr.Top
+            adjusted_position.X += sr.Left
+        # Resume normal processing
+        handle = _GetStdHandle(stream_id)
+        return _SetConsoleCursorPosition(handle, adjusted_position)
+
+    def FillConsoleOutputCharacter(stream_id, char, length, start):
+        handle = _GetStdHandle(stream_id)
+        char = c_char(char.encode())
+        length = wintypes.DWORD(length)
+        num_written = wintypes.DWORD(0)
+        # Note that this is hard-coded for ANSI (vs wide) bytes.
+        success = _FillConsoleOutputCharacterA(
+            handle, char, length, start, byref(num_written))
+        return num_written.value
+
+    def FillConsoleOutputAttribute(stream_id, attr, length, start):
+        ''' FillConsoleOutputAttribute( hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten )'''
+        handle = _GetStdHandle(stream_id)
+        attribute = wintypes.WORD(attr)
+        length = wintypes.DWORD(length)
+        num_written = wintypes.DWORD(0)
+        # Note that this is hard-coded for ANSI (vs wide) bytes.
+        return _FillConsoleOutputAttribute(
+            handle, attribute, length, start, byref(num_written))
+
+    def SetConsoleTitle(title):
+        return _SetConsoleTitleW(title)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/winterm.py b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/winterm.py
new file mode 100644
index 0000000..0fdb4ec
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/colorama/winterm.py
@@ -0,0 +1,169 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+from . import win32
+
+
+# from wincon.h
+class WinColor(object):
+    BLACK   = 0
+    BLUE    = 1
+    GREEN   = 2
+    CYAN    = 3
+    RED     = 4
+    MAGENTA = 5
+    YELLOW  = 6
+    GREY    = 7
+
+# from wincon.h
+class WinStyle(object):
+    NORMAL              = 0x00 # dim text, dim background
+    BRIGHT              = 0x08 # bright text, dim background
+    BRIGHT_BACKGROUND   = 0x80 # dim text, bright background
+
+class WinTerm(object):
+
+    def __init__(self):
+        self._default = win32.GetConsoleScreenBufferInfo(win32.STDOUT).wAttributes
+        self.set_attrs(self._default)
+        self._default_fore = self._fore
+        self._default_back = self._back
+        self._default_style = self._style
+        # In order to emulate LIGHT_EX in windows, we borrow the BRIGHT style.
+        # So that LIGHT_EX colors and BRIGHT style do not clobber each other,
+        # we track them separately, since LIGHT_EX is overwritten by Fore/Back
+        # and BRIGHT is overwritten by Style codes.
+        self._light = 0
+
+    def get_attrs(self):
+        return self._fore + self._back * 16 + (self._style | self._light)
+
+    def set_attrs(self, value):
+        self._fore = value & 7
+        self._back = (value >> 4) & 7
+        self._style = value & (WinStyle.BRIGHT | WinStyle.BRIGHT_BACKGROUND)
+
+    def reset_all(self, on_stderr=None):
+        self.set_attrs(self._default)
+        self.set_console(attrs=self._default)
+        self._light = 0
+
+    def fore(self, fore=None, light=False, on_stderr=False):
+        if fore is None:
+            fore = self._default_fore
+        self._fore = fore
+        # Emulate LIGHT_EX with BRIGHT Style
+        if light:
+            self._light |= WinStyle.BRIGHT
+        else:
+            self._light &= ~WinStyle.BRIGHT
+        self.set_console(on_stderr=on_stderr)
+
+    def back(self, back=None, light=False, on_stderr=False):
+        if back is None:
+            back = self._default_back
+        self._back = back
+        # Emulate LIGHT_EX with BRIGHT_BACKGROUND Style
+        if light:
+            self._light |= WinStyle.BRIGHT_BACKGROUND
+        else:
+            self._light &= ~WinStyle.BRIGHT_BACKGROUND
+        self.set_console(on_stderr=on_stderr)
+
+    def style(self, style=None, on_stderr=False):
+        if style is None:
+            style = self._default_style
+        self._style = style
+        self.set_console(on_stderr=on_stderr)
+
+    def set_console(self, attrs=None, on_stderr=False):
+        if attrs is None:
+            attrs = self.get_attrs()
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        win32.SetConsoleTextAttribute(handle, attrs)
+
+    def get_position(self, handle):
+        position = win32.GetConsoleScreenBufferInfo(handle).dwCursorPosition
+        # Because Windows coordinates are 0-based,
+        # and win32.SetConsoleCursorPosition expects 1-based.
+        position.X += 1
+        position.Y += 1
+        return position
+
+    def set_cursor_position(self, position=None, on_stderr=False):
+        if position is None:
+            # I'm not currently tracking the position, so there is no default.
+            # position = self.get_position()
+            return
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        win32.SetConsoleCursorPosition(handle, position)
+
+    def cursor_adjust(self, x, y, on_stderr=False):
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        position = self.get_position(handle)
+        adjusted_position = (position.Y + y, position.X + x)
+        win32.SetConsoleCursorPosition(handle, adjusted_position, adjust=False)
+
+    def erase_screen(self, mode=0, on_stderr=False):
+        # 0 should clear from the cursor to the end of the screen.
+        # 1 should clear from the cursor to the beginning of the screen.
+        # 2 should clear the entire screen, and move cursor to (1,1)
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        csbi = win32.GetConsoleScreenBufferInfo(handle)
+        # get the number of character cells in the current buffer
+        cells_in_screen = csbi.dwSize.X * csbi.dwSize.Y
+        # get number of character cells before current cursor position
+        cells_before_cursor = csbi.dwSize.X * csbi.dwCursorPosition.Y + csbi.dwCursorPosition.X
+        if mode == 0:
+            from_coord = csbi.dwCursorPosition
+            cells_to_erase = cells_in_screen - cells_before_cursor
+        elif mode == 1:
+            from_coord = win32.COORD(0, 0)
+            cells_to_erase = cells_before_cursor
+        elif mode == 2:
+            from_coord = win32.COORD(0, 0)
+            cells_to_erase = cells_in_screen
+        else:
+            # invalid mode
+            return
+        # fill the entire screen with blanks
+        win32.FillConsoleOutputCharacter(handle, ' ', cells_to_erase, from_coord)
+        # now set the buffer's attributes accordingly
+        win32.FillConsoleOutputAttribute(handle, self.get_attrs(), cells_to_erase, from_coord)
+        if mode == 2:
+            # put the cursor where needed
+            win32.SetConsoleCursorPosition(handle, (1, 1))
+
+    def erase_line(self, mode=0, on_stderr=False):
+        # 0 should clear from the cursor to the end of the line.
+        # 1 should clear from the cursor to the beginning of the line.
+        # 2 should clear the entire line.
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        csbi = win32.GetConsoleScreenBufferInfo(handle)
+        if mode == 0:
+            from_coord = csbi.dwCursorPosition
+            cells_to_erase = csbi.dwSize.X - csbi.dwCursorPosition.X
+        elif mode == 1:
+            from_coord = win32.COORD(0, csbi.dwCursorPosition.Y)
+            cells_to_erase = csbi.dwCursorPosition.X
+        elif mode == 2:
+            from_coord = win32.COORD(0, csbi.dwCursorPosition.Y)
+            cells_to_erase = csbi.dwSize.X
+        else:
+            # invalid mode
+            return
+        # fill the entire screen with blanks
+        win32.FillConsoleOutputCharacter(handle, ' ', cells_to_erase, from_coord)
+        # now set the buffer's attributes accordingly
+        win32.FillConsoleOutputAttribute(handle, self.get_attrs(), cells_to_erase, from_coord)
+
+    def set_title(self, title):
+        win32.SetConsoleTitle(title)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/__init__.py
new file mode 100644
index 0000000..1154948
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/__init__.py
@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2019 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+import logging
+
+__version__ = '0.3.3'
+
+class DistlibException(Exception):
+    pass
+
+try:
+    from logging import NullHandler
+except ImportError: # pragma: no cover
+    class NullHandler(logging.Handler):
+        def handle(self, record): pass
+        def emit(self, record): pass
+        def createLock(self): self.lock = None
+
+logger = logging.getLogger(__name__)
+logger.addHandler(NullHandler())
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/__init__.py
new file mode 100644
index 0000000..f7dbf4c
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/__init__.py
@@ -0,0 +1,6 @@
+"""Modules copied from Python 3 standard libraries, for internal use only.
+
+Individual classes and functions are found in d2._backport.misc.  Intended
+usage is to always import things missing from 3.1 from that module: the
+built-in/stdlib objects will be used if found.
+"""
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/misc.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/misc.py
new file mode 100644
index 0000000..cfb318d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/misc.py
@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""Backports for individual classes and functions."""
+
+import os
+import sys
+
+__all__ = ['cache_from_source', 'callable', 'fsencode']
+
+
+try:
+    from imp import cache_from_source
+except ImportError:
+    def cache_from_source(py_file, debug=__debug__):
+        ext = debug and 'c' or 'o'
+        return py_file + ext
+
+
+try:
+    callable = callable
+except NameError:
+    from collections import Callable
+
+    def callable(obj):
+        return isinstance(obj, Callable)
+
+
+try:
+    fsencode = os.fsencode
+except AttributeError:
+    def fsencode(filename):
+        if isinstance(filename, bytes):
+            return filename
+        elif isinstance(filename, str):
+            return filename.encode(sys.getfilesystemencoding())
+        else:
+            raise TypeError("expect bytes or str, not %s" %
+                            type(filename).__name__)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/shutil.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/shutil.py
new file mode 100644
index 0000000..10ed362
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/shutil.py
@@ -0,0 +1,764 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""Utility functions for copying and archiving files and directory trees.
+
+XXX The functions here don't copy the resource fork or other metadata on Mac.
+
+"""
+
+import os
+import sys
+import stat
+from os.path import abspath
+import fnmatch
+try:
+    from collections.abc import Callable
+except ImportError:
+    from collections import Callable
+import errno
+from . import tarfile
+
+try:
+    import bz2
+    _BZ2_SUPPORTED = True
+except ImportError:
+    _BZ2_SUPPORTED = False
+
+try:
+    from pwd import getpwnam
+except ImportError:
+    getpwnam = None
+
+try:
+    from grp import getgrnam
+except ImportError:
+    getgrnam = None
+
+__all__ = ["copyfileobj", "copyfile", "copymode", "copystat", "copy", "copy2",
+           "copytree", "move", "rmtree", "Error", "SpecialFileError",
+           "ExecError", "make_archive", "get_archive_formats",
+           "register_archive_format", "unregister_archive_format",
+           "get_unpack_formats", "register_unpack_format",
+           "unregister_unpack_format", "unpack_archive", "ignore_patterns"]
+
+class Error(EnvironmentError):
+    pass
+
+class SpecialFileError(EnvironmentError):
+    """Raised when trying to do a kind of operation (e.g. copying) which is
+    not supported on a special file (e.g. a named pipe)"""
+
+class ExecError(EnvironmentError):
+    """Raised when a command could not be executed"""
+
+class ReadError(EnvironmentError):
+    """Raised when an archive cannot be read"""
+
+class RegistryError(Exception):
+    """Raised when a registry operation with the archiving
+    and unpacking registries fails"""
+
+
+try:
+    WindowsError
+except NameError:
+    WindowsError = None
+
+def copyfileobj(fsrc, fdst, length=16*1024):
+    """copy data from file-like object fsrc to file-like object fdst"""
+    while 1:
+        buf = fsrc.read(length)
+        if not buf:
+            break
+        fdst.write(buf)
+
+def _samefile(src, dst):
+    # Macintosh, Unix.
+    if hasattr(os.path, 'samefile'):
+        try:
+            return os.path.samefile(src, dst)
+        except OSError:
+            return False
+
+    # All other platforms: check for same pathname.
+    return (os.path.normcase(os.path.abspath(src)) ==
+            os.path.normcase(os.path.abspath(dst)))
+
+def copyfile(src, dst):
+    """Copy data from src to dst"""
+    if _samefile(src, dst):
+        raise Error("`%s` and `%s` are the same file" % (src, dst))
+
+    for fn in [src, dst]:
+        try:
+            st = os.stat(fn)
+        except OSError:
+            # File most likely does not exist
+            pass
+        else:
+            # XXX What about other special files? (sockets, devices...)
+            if stat.S_ISFIFO(st.st_mode):
+                raise SpecialFileError("`%s` is a named pipe" % fn)
+
+    with open(src, 'rb') as fsrc:
+        with open(dst, 'wb') as fdst:
+            copyfileobj(fsrc, fdst)
+
+def copymode(src, dst):
+    """Copy mode bits from src to dst"""
+    if hasattr(os, 'chmod'):
+        st = os.stat(src)
+        mode = stat.S_IMODE(st.st_mode)
+        os.chmod(dst, mode)
+
+def copystat(src, dst):
+    """Copy all stat info (mode bits, atime, mtime, flags) from src to dst"""
+    st = os.stat(src)
+    mode = stat.S_IMODE(st.st_mode)
+    if hasattr(os, 'utime'):
+        os.utime(dst, (st.st_atime, st.st_mtime))
+    if hasattr(os, 'chmod'):
+        os.chmod(dst, mode)
+    if hasattr(os, 'chflags') and hasattr(st, 'st_flags'):
+        try:
+            os.chflags(dst, st.st_flags)
+        except OSError as why:
+            if (not hasattr(errno, 'EOPNOTSUPP') or
+                why.errno != errno.EOPNOTSUPP):
+                raise
+
+def copy(src, dst):
+    """Copy data and mode bits ("cp src dst").
+
+    The destination may be a directory.
+
+    """
+    if os.path.isdir(dst):
+        dst = os.path.join(dst, os.path.basename(src))
+    copyfile(src, dst)
+    copymode(src, dst)
+
+def copy2(src, dst):
+    """Copy data and all stat info ("cp -p src dst").
+
+    The destination may be a directory.
+
+    """
+    if os.path.isdir(dst):
+        dst = os.path.join(dst, os.path.basename(src))
+    copyfile(src, dst)
+    copystat(src, dst)
+
+def ignore_patterns(*patterns):
+    """Function that can be used as copytree() ignore parameter.
+
+    Patterns is a sequence of glob-style patterns
+    that are used to exclude files"""
+    def _ignore_patterns(path, names):
+        ignored_names = []
+        for pattern in patterns:
+            ignored_names.extend(fnmatch.filter(names, pattern))
+        return set(ignored_names)
+    return _ignore_patterns
+
+def copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2,
+             ignore_dangling_symlinks=False):
+    """Recursively copy a directory tree.
+
+    The destination directory must not already exist.
+    If exception(s) occur, an Error is raised with a list of reasons.
+
+    If the optional symlinks flag is true, symbolic links in the
+    source tree result in symbolic links in the destination tree; if
+    it is false, the contents of the files pointed to by symbolic
+    links are copied. If the file pointed by the symlink doesn't
+    exist, an exception will be added in the list of errors raised in
+    an Error exception at the end of the copy process.
+
+    You can set the optional ignore_dangling_symlinks flag to true if you
+    want to silence this exception. Notice that this has no effect on
+    platforms that don't support os.symlink.
+
+    The optional ignore argument is a callable. If given, it
+    is called with the `src` parameter, which is the directory
+    being visited by copytree(), and `names` which is the list of
+    `src` contents, as returned by os.listdir():
+
+        callable(src, names) -> ignored_names
+
+    Since copytree() is called recursively, the callable will be
+    called once for each directory that is copied. It returns a
+    list of names relative to the `src` directory that should
+    not be copied.
+
+    The optional copy_function argument is a callable that will be used
+    to copy each file. It will be called with the source path and the
+    destination path as arguments. By default, copy2() is used, but any
+    function that supports the same signature (like copy()) can be used.
+
+    """
+    names = os.listdir(src)
+    if ignore is not None:
+        ignored_names = ignore(src, names)
+    else:
+        ignored_names = set()
+
+    os.makedirs(dst)
+    errors = []
+    for name in names:
+        if name in ignored_names:
+            continue
+        srcname = os.path.join(src, name)
+        dstname = os.path.join(dst, name)
+        try:
+            if os.path.islink(srcname):
+                linkto = os.readlink(srcname)
+                if symlinks:
+                    os.symlink(linkto, dstname)
+                else:
+                    # ignore dangling symlink if the flag is on
+                    if not os.path.exists(linkto) and ignore_dangling_symlinks:
+                        continue
+                    # otherwise let the copy occurs. copy2 will raise an error
+                    copy_function(srcname, dstname)
+            elif os.path.isdir(srcname):
+                copytree(srcname, dstname, symlinks, ignore, copy_function)
+            else:
+                # Will raise a SpecialFileError for unsupported file types
+                copy_function(srcname, dstname)
+        # catch the Error from the recursive copytree so that we can
+        # continue with other files
+        except Error as err:
+            errors.extend(err.args[0])
+        except EnvironmentError as why:
+            errors.append((srcname, dstname, str(why)))
+    try:
+        copystat(src, dst)
+    except OSError as why:
+        if WindowsError is not None and isinstance(why, WindowsError):
+            # Copying file access times may fail on Windows
+            pass
+        else:
+            errors.extend((src, dst, str(why)))
+    if errors:
+        raise Error(errors)
+
+def rmtree(path, ignore_errors=False, onerror=None):
+    """Recursively delete a directory tree.
+
+    If ignore_errors is set, errors are ignored; otherwise, if onerror
+    is set, it is called to handle the error with arguments (func,
+    path, exc_info) where func is os.listdir, os.remove, or os.rmdir;
+    path is the argument to that function that caused it to fail; and
+    exc_info is a tuple returned by sys.exc_info().  If ignore_errors
+    is false and onerror is None, an exception is raised.
+
+    """
+    if ignore_errors:
+        def onerror(*args):
+            pass
+    elif onerror is None:
+        def onerror(*args):
+            raise
+    try:
+        if os.path.islink(path):
+            # symlinks to directories are forbidden, see bug #1669
+            raise OSError("Cannot call rmtree on a symbolic link")
+    except OSError:
+        onerror(os.path.islink, path, sys.exc_info())
+        # can't continue even if onerror hook returns
+        return
+    names = []
+    try:
+        names = os.listdir(path)
+    except os.error:
+        onerror(os.listdir, path, sys.exc_info())
+    for name in names:
+        fullname = os.path.join(path, name)
+        try:
+            mode = os.lstat(fullname).st_mode
+        except os.error:
+            mode = 0
+        if stat.S_ISDIR(mode):
+            rmtree(fullname, ignore_errors, onerror)
+        else:
+            try:
+                os.remove(fullname)
+            except os.error:
+                onerror(os.remove, fullname, sys.exc_info())
+    try:
+        os.rmdir(path)
+    except os.error:
+        onerror(os.rmdir, path, sys.exc_info())
+
+
+def _basename(path):
+    # A basename() variant which first strips the trailing slash, if present.
+    # Thus we always get the last component of the path, even for directories.
+    return os.path.basename(path.rstrip(os.path.sep))
+
+def move(src, dst):
+    """Recursively move a file or directory to another location. This is
+    similar to the Unix "mv" command.
+
+    If the destination is a directory or a symlink to a directory, the source
+    is moved inside the directory. The destination path must not already
+    exist.
+
+    If the destination already exists but is not a directory, it may be
+    overwritten depending on os.rename() semantics.
+
+    If the destination is on our current filesystem, then rename() is used.
+    Otherwise, src is copied to the destination and then removed.
+    A lot more could be done here...  A look at a mv.c shows a lot of
+    the issues this implementation glosses over.
+
+    """
+    real_dst = dst
+    if os.path.isdir(dst):
+        if _samefile(src, dst):
+            # We might be on a case insensitive filesystem,
+            # perform the rename anyway.
+            os.rename(src, dst)
+            return
+
+        real_dst = os.path.join(dst, _basename(src))
+        if os.path.exists(real_dst):
+            raise Error("Destination path '%s' already exists" % real_dst)
+    try:
+        os.rename(src, real_dst)
+    except OSError:
+        if os.path.isdir(src):
+            if _destinsrc(src, dst):
+                raise Error("Cannot move a directory '%s' into itself '%s'." % (src, dst))
+            copytree(src, real_dst, symlinks=True)
+            rmtree(src)
+        else:
+            copy2(src, real_dst)
+            os.unlink(src)
+
+def _destinsrc(src, dst):
+    src = abspath(src)
+    dst = abspath(dst)
+    if not src.endswith(os.path.sep):
+        src += os.path.sep
+    if not dst.endswith(os.path.sep):
+        dst += os.path.sep
+    return dst.startswith(src)
+
+def _get_gid(name):
+    """Returns a gid, given a group name."""
+    if getgrnam is None or name is None:
+        return None
+    try:
+        result = getgrnam(name)
+    except KeyError:
+        result = None
+    if result is not None:
+        return result[2]
+    return None
+
+def _get_uid(name):
+    """Returns an uid, given a user name."""
+    if getpwnam is None or name is None:
+        return None
+    try:
+        result = getpwnam(name)
+    except KeyError:
+        result = None
+    if result is not None:
+        return result[2]
+    return None
+
+def _make_tarball(base_name, base_dir, compress="gzip", verbose=0, dry_run=0,
+                  owner=None, group=None, logger=None):
+    """Create a (possibly compressed) tar file from all the files under
+    'base_dir'.
+
+    'compress' must be "gzip" (the default), "bzip2", or None.
+
+    'owner' and 'group' can be used to define an owner and a group for the
+    archive that is being built. If not provided, the current owner and group
+    will be used.
+
+    The output tar file will be named 'base_name' +  ".tar", possibly plus
+    the appropriate compression extension (".gz", or ".bz2").
+
+    Returns the output filename.
+    """
+    tar_compression = {'gzip': 'gz', None: ''}
+    compress_ext = {'gzip': '.gz'}
+
+    if _BZ2_SUPPORTED:
+        tar_compression['bzip2'] = 'bz2'
+        compress_ext['bzip2'] = '.bz2'
+
+    # flags for compression program, each element of list will be an argument
+    if compress is not None and compress not in compress_ext:
+        raise ValueError("bad value for 'compress', or compression format not "
+                         "supported : {0}".format(compress))
+
+    archive_name = base_name + '.tar' + compress_ext.get(compress, '')
+    archive_dir = os.path.dirname(archive_name)
+
+    if not os.path.exists(archive_dir):
+        if logger is not None:
+            logger.info("creating %s", archive_dir)
+        if not dry_run:
+            os.makedirs(archive_dir)
+
+    # creating the tarball
+    if logger is not None:
+        logger.info('Creating tar archive')
+
+    uid = _get_uid(owner)
+    gid = _get_gid(group)
+
+    def _set_uid_gid(tarinfo):
+        if gid is not None:
+            tarinfo.gid = gid
+            tarinfo.gname = group
+        if uid is not None:
+            tarinfo.uid = uid
+            tarinfo.uname = owner
+        return tarinfo
+
+    if not dry_run:
+        tar = tarfile.open(archive_name, 'w|%s' % tar_compression[compress])
+        try:
+            tar.add(base_dir, filter=_set_uid_gid)
+        finally:
+            tar.close()
+
+    return archive_name
+
+def _call_external_zip(base_dir, zip_filename, verbose=False, dry_run=False):
+    # XXX see if we want to keep an external call here
+    if verbose:
+        zipoptions = "-r"
+    else:
+        zipoptions = "-rq"
+    from distutils.errors import DistutilsExecError
+    from distutils.spawn import spawn
+    try:
+        spawn(["zip", zipoptions, zip_filename, base_dir], dry_run=dry_run)
+    except DistutilsExecError:
+        # XXX really should distinguish between "couldn't find
+        # external 'zip' command" and "zip failed".
+        raise ExecError("unable to create zip file '%s': "
+            "could neither import the 'zipfile' module nor "
+            "find a standalone zip utility") % zip_filename
+
+def _make_zipfile(base_name, base_dir, verbose=0, dry_run=0, logger=None):
+    """Create a zip file from all the files under 'base_dir'.
+
+    The output zip file will be named 'base_name' + ".zip".  Uses either the
+    "zipfile" Python module (if available) or the InfoZIP "zip" utility
+    (if installed and found on the default search path).  If neither tool is
+    available, raises ExecError.  Returns the name of the output zip
+    file.
+    """
+    zip_filename = base_name + ".zip"
+    archive_dir = os.path.dirname(base_name)
+
+    if not os.path.exists(archive_dir):
+        if logger is not None:
+            logger.info("creating %s", archive_dir)
+        if not dry_run:
+            os.makedirs(archive_dir)
+
+    # If zipfile module is not available, try spawning an external 'zip'
+    # command.
+    try:
+        import zipfile
+    except ImportError:
+        zipfile = None
+
+    if zipfile is None:
+        _call_external_zip(base_dir, zip_filename, verbose, dry_run)
+    else:
+        if logger is not None:
+            logger.info("creating '%s' and adding '%s' to it",
+                        zip_filename, base_dir)
+
+        if not dry_run:
+            zip = zipfile.ZipFile(zip_filename, "w",
+                                  compression=zipfile.ZIP_DEFLATED)
+
+            for dirpath, dirnames, filenames in os.walk(base_dir):
+                for name in filenames:
+                    path = os.path.normpath(os.path.join(dirpath, name))
+                    if os.path.isfile(path):
+                        zip.write(path, path)
+                        if logger is not None:
+                            logger.info("adding '%s'", path)
+            zip.close()
+
+    return zip_filename
+
+_ARCHIVE_FORMATS = {
+    'gztar': (_make_tarball, [('compress', 'gzip')], "gzip'ed tar-file"),
+    'bztar': (_make_tarball, [('compress', 'bzip2')], "bzip2'ed tar-file"),
+    'tar':   (_make_tarball, [('compress', None)], "uncompressed tar file"),
+    'zip':   (_make_zipfile, [], "ZIP file"),
+    }
+
+if _BZ2_SUPPORTED:
+    _ARCHIVE_FORMATS['bztar'] = (_make_tarball, [('compress', 'bzip2')],
+                                "bzip2'ed tar-file")
+
+def get_archive_formats():
+    """Returns a list of supported formats for archiving and unarchiving.
+
+    Each element of the returned sequence is a tuple (name, description)
+    """
+    formats = [(name, registry[2]) for name, registry in
+               _ARCHIVE_FORMATS.items()]
+    formats.sort()
+    return formats
+
+def register_archive_format(name, function, extra_args=None, description=''):
+    """Registers an archive format.
+
+    name is the name of the format. function is the callable that will be
+    used to create archives. If provided, extra_args is a sequence of
+    (name, value) tuples that will be passed as arguments to the callable.
+    description can be provided to describe the format, and will be returned
+    by the get_archive_formats() function.
+    """
+    if extra_args is None:
+        extra_args = []
+    if not isinstance(function, Callable):
+        raise TypeError('The %s object is not callable' % function)
+    if not isinstance(extra_args, (tuple, list)):
+        raise TypeError('extra_args needs to be a sequence')
+    for element in extra_args:
+        if not isinstance(element, (tuple, list)) or len(element) !=2:
+            raise TypeError('extra_args elements are : (arg_name, value)')
+
+    _ARCHIVE_FORMATS[name] = (function, extra_args, description)
+
+def unregister_archive_format(name):
+    del _ARCHIVE_FORMATS[name]
+
+def make_archive(base_name, format, root_dir=None, base_dir=None, verbose=0,
+                 dry_run=0, owner=None, group=None, logger=None):
+    """Create an archive file (eg. zip or tar).
+
+    'base_name' is the name of the file to create, minus any format-specific
+    extension; 'format' is the archive format: one of "zip", "tar", "bztar"
+    or "gztar".
+
+    'root_dir' is a directory that will be the root directory of the
+    archive; ie. we typically chdir into 'root_dir' before creating the
+    archive.  'base_dir' is the directory where we start archiving from;
+    ie. 'base_dir' will be the common prefix of all files and
+    directories in the archive.  'root_dir' and 'base_dir' both default
+    to the current directory.  Returns the name of the archive file.
+
+    'owner' and 'group' are used when creating a tar archive. By default,
+    uses the current owner and group.
+    """
+    save_cwd = os.getcwd()
+    if root_dir is not None:
+        if logger is not None:
+            logger.debug("changing into '%s'", root_dir)
+        base_name = os.path.abspath(base_name)
+        if not dry_run:
+            os.chdir(root_dir)
+
+    if base_dir is None:
+        base_dir = os.curdir
+
+    kwargs = {'dry_run': dry_run, 'logger': logger}
+
+    try:
+        format_info = _ARCHIVE_FORMATS[format]
+    except KeyError:
+        raise ValueError("unknown archive format '%s'" % format)
+
+    func = format_info[0]
+    for arg, val in format_info[1]:
+        kwargs[arg] = val
+
+    if format != 'zip':
+        kwargs['owner'] = owner
+        kwargs['group'] = group
+
+    try:
+        filename = func(base_name, base_dir, **kwargs)
+    finally:
+        if root_dir is not None:
+            if logger is not None:
+                logger.debug("changing back to '%s'", save_cwd)
+            os.chdir(save_cwd)
+
+    return filename
+
+
+def get_unpack_formats():
+    """Returns a list of supported formats for unpacking.
+
+    Each element of the returned sequence is a tuple
+    (name, extensions, description)
+    """
+    formats = [(name, info[0], info[3]) for name, info in
+               _UNPACK_FORMATS.items()]
+    formats.sort()
+    return formats
+
+def _check_unpack_options(extensions, function, extra_args):
+    """Checks what gets registered as an unpacker."""
+    # first make sure no other unpacker is registered for this extension
+    existing_extensions = {}
+    for name, info in _UNPACK_FORMATS.items():
+        for ext in info[0]:
+            existing_extensions[ext] = name
+
+    for extension in extensions:
+        if extension in existing_extensions:
+            msg = '%s is already registered for "%s"'
+            raise RegistryError(msg % (extension,
+                                       existing_extensions[extension]))
+
+    if not isinstance(function, Callable):
+        raise TypeError('The registered function must be a callable')
+
+
+def register_unpack_format(name, extensions, function, extra_args=None,
+                           description=''):
+    """Registers an unpack format.
+
+    `name` is the name of the format. `extensions` is a list of extensions
+    corresponding to the format.
+
+    `function` is the callable that will be
+    used to unpack archives. The callable will receive archives to unpack.
+    If it's unable to handle an archive, it needs to raise a ReadError
+    exception.
+
+    If provided, `extra_args` is a sequence of
+    (name, value) tuples that will be passed as arguments to the callable.
+    description can be provided to describe the format, and will be returned
+    by the get_unpack_formats() function.
+    """
+    if extra_args is None:
+        extra_args = []
+    _check_unpack_options(extensions, function, extra_args)
+    _UNPACK_FORMATS[name] = extensions, function, extra_args, description
+
+def unregister_unpack_format(name):
+    """Removes the pack format from the registry."""
+    del _UNPACK_FORMATS[name]
+
+def _ensure_directory(path):
+    """Ensure that the parent directory of `path` exists"""
+    dirname = os.path.dirname(path)
+    if not os.path.isdir(dirname):
+        os.makedirs(dirname)
+
+def _unpack_zipfile(filename, extract_dir):
+    """Unpack zip `filename` to `extract_dir`
+    """
+    try:
+        import zipfile
+    except ImportError:
+        raise ReadError('zlib not supported, cannot unpack this archive.')
+
+    if not zipfile.is_zipfile(filename):
+        raise ReadError("%s is not a zip file" % filename)
+
+    zip = zipfile.ZipFile(filename)
+    try:
+        for info in zip.infolist():
+            name = info.filename
+
+            # don't extract absolute paths or ones with .. in them
+            if name.startswith('/') or '..' in name:
+                continue
+
+            target = os.path.join(extract_dir, *name.split('/'))
+            if not target:
+                continue
+
+            _ensure_directory(target)
+            if not name.endswith('/'):
+                # file
+                data = zip.read(info.filename)
+                f = open(target, 'wb')
+                try:
+                    f.write(data)
+                finally:
+                    f.close()
+                    del data
+    finally:
+        zip.close()
+
+def _unpack_tarfile(filename, extract_dir):
+    """Unpack tar/tar.gz/tar.bz2 `filename` to `extract_dir`
+    """
+    try:
+        tarobj = tarfile.open(filename)
+    except tarfile.TarError:
+        raise ReadError(
+            "%s is not a compressed or uncompressed tar file" % filename)
+    try:
+        tarobj.extractall(extract_dir)
+    finally:
+        tarobj.close()
+
+_UNPACK_FORMATS = {
+    'gztar': (['.tar.gz', '.tgz'], _unpack_tarfile, [], "gzip'ed tar-file"),
+    'tar':   (['.tar'], _unpack_tarfile, [], "uncompressed tar file"),
+    'zip':   (['.zip'], _unpack_zipfile, [], "ZIP file")
+    }
+
+if _BZ2_SUPPORTED:
+    _UNPACK_FORMATS['bztar'] = (['.bz2'], _unpack_tarfile, [],
+                                "bzip2'ed tar-file")
+
+def _find_unpack_format(filename):
+    for name, info in _UNPACK_FORMATS.items():
+        for extension in info[0]:
+            if filename.endswith(extension):
+                return name
+    return None
+
+def unpack_archive(filename, extract_dir=None, format=None):
+    """Unpack an archive.
+
+    `filename` is the name of the archive.
+
+    `extract_dir` is the name of the target directory, where the archive
+    is unpacked. If not provided, the current working directory is used.
+
+    `format` is the archive format: one of "zip", "tar", or "gztar". Or any
+    other registered format. If not provided, unpack_archive will use the
+    filename extension and see if an unpacker was registered for that
+    extension.
+
+    In case none is found, a ValueError is raised.
+    """
+    if extract_dir is None:
+        extract_dir = os.getcwd()
+
+    if format is not None:
+        try:
+            format_info = _UNPACK_FORMATS[format]
+        except KeyError:
+            raise ValueError("Unknown unpack format '{0}'".format(format))
+
+        func = format_info[1]
+        func(filename, extract_dir, **dict(format_info[2]))
+    else:
+        # we need to look at the registered unpackers supported extensions
+        format = _find_unpack_format(filename)
+        if format is None:
+            raise ReadError("Unknown archive format '{0}'".format(filename))
+
+        func = _UNPACK_FORMATS[format][1]
+        kwargs = dict(_UNPACK_FORMATS[format][2])
+        func(filename, extract_dir, **kwargs)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/sysconfig.cfg b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/sysconfig.cfg
new file mode 100644
index 0000000..1746bd0
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/sysconfig.cfg
@@ -0,0 +1,84 @@
+[posix_prefix]
+# Configuration directories.  Some of these come straight out of the
+# configure script.  They are for implementing the other variables, not to
+# be used directly in [resource_locations].
+confdir = /etc
+datadir = /usr/share
+libdir = /usr/lib
+statedir = /var
+# User resource directory
+local = ~/.local/{distribution.name}
+
+stdlib = {base}/lib/python{py_version_short}
+platstdlib = {platbase}/lib/python{py_version_short}
+purelib = {base}/lib/python{py_version_short}/site-packages
+platlib = {platbase}/lib/python{py_version_short}/site-packages
+include = {base}/include/python{py_version_short}{abiflags}
+platinclude = {platbase}/include/python{py_version_short}{abiflags}
+data = {base}
+
+[posix_home]
+stdlib = {base}/lib/python
+platstdlib = {base}/lib/python
+purelib = {base}/lib/python
+platlib = {base}/lib/python
+include = {base}/include/python
+platinclude = {base}/include/python
+scripts = {base}/bin
+data = {base}
+
+[nt]
+stdlib = {base}/Lib
+platstdlib = {base}/Lib
+purelib = {base}/Lib/site-packages
+platlib = {base}/Lib/site-packages
+include = {base}/Include
+platinclude = {base}/Include
+scripts = {base}/Scripts
+data = {base}
+
+[os2]
+stdlib = {base}/Lib
+platstdlib = {base}/Lib
+purelib = {base}/Lib/site-packages
+platlib = {base}/Lib/site-packages
+include = {base}/Include
+platinclude = {base}/Include
+scripts = {base}/Scripts
+data = {base}
+
+[os2_home]
+stdlib = {userbase}/lib/python{py_version_short}
+platstdlib = {userbase}/lib/python{py_version_short}
+purelib = {userbase}/lib/python{py_version_short}/site-packages
+platlib = {userbase}/lib/python{py_version_short}/site-packages
+include = {userbase}/include/python{py_version_short}
+scripts = {userbase}/bin
+data = {userbase}
+
+[nt_user]
+stdlib = {userbase}/Python{py_version_nodot}
+platstdlib = {userbase}/Python{py_version_nodot}
+purelib = {userbase}/Python{py_version_nodot}/site-packages
+platlib = {userbase}/Python{py_version_nodot}/site-packages
+include = {userbase}/Python{py_version_nodot}/Include
+scripts = {userbase}/Scripts
+data = {userbase}
+
+[posix_user]
+stdlib = {userbase}/lib/python{py_version_short}
+platstdlib = {userbase}/lib/python{py_version_short}
+purelib = {userbase}/lib/python{py_version_short}/site-packages
+platlib = {userbase}/lib/python{py_version_short}/site-packages
+include = {userbase}/include/python{py_version_short}
+scripts = {userbase}/bin
+data = {userbase}
+
+[osx_framework_user]
+stdlib = {userbase}/lib/python
+platstdlib = {userbase}/lib/python
+purelib = {userbase}/lib/python/site-packages
+platlib = {userbase}/lib/python/site-packages
+include = {userbase}/include
+scripts = {userbase}/bin
+data = {userbase}
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/sysconfig.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/sysconfig.py
new file mode 100644
index 0000000..b470a37
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/sysconfig.py
@@ -0,0 +1,786 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""Access to Python's configuration information."""
+
+import codecs
+import os
+import re
+import sys
+from os.path import pardir, realpath
+try:
+    import configparser
+except ImportError:
+    import ConfigParser as configparser
+
+
+__all__ = [
+    'get_config_h_filename',
+    'get_config_var',
+    'get_config_vars',
+    'get_makefile_filename',
+    'get_path',
+    'get_path_names',
+    'get_paths',
+    'get_platform',
+    'get_python_version',
+    'get_scheme_names',
+    'parse_config_h',
+]
+
+
+def _safe_realpath(path):
+    try:
+        return realpath(path)
+    except OSError:
+        return path
+
+
+if sys.executable:
+    _PROJECT_BASE = os.path.dirname(_safe_realpath(sys.executable))
+else:
+    # sys.executable can be empty if argv[0] has been changed and Python is
+    # unable to retrieve the real program name
+    _PROJECT_BASE = _safe_realpath(os.getcwd())
+
+if os.name == "nt" and "pcbuild" in _PROJECT_BASE[-8:].lower():
+    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir))
+# PC/VS7.1
+if os.name == "nt" and "\\pc\\v" in _PROJECT_BASE[-10:].lower():
+    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
+# PC/AMD64
+if os.name == "nt" and "\\pcbuild\\amd64" in _PROJECT_BASE[-14:].lower():
+    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
+
+
+def is_python_build():
+    for fn in ("Setup.dist", "Setup.local"):
+        if os.path.isfile(os.path.join(_PROJECT_BASE, "Modules", fn)):
+            return True
+    return False
+
+_PYTHON_BUILD = is_python_build()
+
+_cfg_read = False
+
+def _ensure_cfg_read():
+    global _cfg_read
+    if not _cfg_read:
+        from ..resources import finder
+        backport_package = __name__.rsplit('.', 1)[0]
+        _finder = finder(backport_package)
+        _cfgfile = _finder.find('sysconfig.cfg')
+        assert _cfgfile, 'sysconfig.cfg exists'
+        with _cfgfile.as_stream() as s:
+            _SCHEMES.readfp(s)
+        if _PYTHON_BUILD:
+            for scheme in ('posix_prefix', 'posix_home'):
+                _SCHEMES.set(scheme, 'include', '{srcdir}/Include')
+                _SCHEMES.set(scheme, 'platinclude', '{projectbase}/.')
+
+        _cfg_read = True
+
+
+_SCHEMES = configparser.RawConfigParser()
+_VAR_REPL = re.compile(r'\{([^{]*?)\}')
+
+def _expand_globals(config):
+    _ensure_cfg_read()
+    if config.has_section('globals'):
+        globals = config.items('globals')
+    else:
+        globals = tuple()
+
+    sections = config.sections()
+    for section in sections:
+        if section == 'globals':
+            continue
+        for option, value in globals:
+            if config.has_option(section, option):
+                continue
+            config.set(section, option, value)
+    config.remove_section('globals')
+
+    # now expanding local variables defined in the cfg file
+    #
+    for section in config.sections():
+        variables = dict(config.items(section))
+
+        def _replacer(matchobj):
+            name = matchobj.group(1)
+            if name in variables:
+                return variables[name]
+            return matchobj.group(0)
+
+        for option, value in config.items(section):
+            config.set(section, option, _VAR_REPL.sub(_replacer, value))
+
+#_expand_globals(_SCHEMES)
+
+_PY_VERSION = '%s.%s.%s' % sys.version_info[:3]
+_PY_VERSION_SHORT = '%s.%s' % sys.version_info[:2]
+_PY_VERSION_SHORT_NO_DOT = '%s%s' % sys.version_info[:2]
+_PREFIX = os.path.normpath(sys.prefix)
+_EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
+_CONFIG_VARS = None
+_USER_BASE = None
+
+
+def _subst_vars(path, local_vars):
+    """In the string `path`, replace tokens like {some.thing} with the
+    corresponding value from the map `local_vars`.
+
+    If there is no corresponding value, leave the token unchanged.
+    """
+    def _replacer(matchobj):
+        name = matchobj.group(1)
+        if name in local_vars:
+            return local_vars[name]
+        elif name in os.environ:
+            return os.environ[name]
+        return matchobj.group(0)
+    return _VAR_REPL.sub(_replacer, path)
+
+
+def _extend_dict(target_dict, other_dict):
+    target_keys = target_dict.keys()
+    for key, value in other_dict.items():
+        if key in target_keys:
+            continue
+        target_dict[key] = value
+
+
+def _expand_vars(scheme, vars):
+    res = {}
+    if vars is None:
+        vars = {}
+    _extend_dict(vars, get_config_vars())
+
+    for key, value in _SCHEMES.items(scheme):
+        if os.name in ('posix', 'nt'):
+            value = os.path.expanduser(value)
+        res[key] = os.path.normpath(_subst_vars(value, vars))
+    return res
+
+
+def format_value(value, vars):
+    def _replacer(matchobj):
+        name = matchobj.group(1)
+        if name in vars:
+            return vars[name]
+        return matchobj.group(0)
+    return _VAR_REPL.sub(_replacer, value)
+
+
+def _get_default_scheme():
+    if os.name == 'posix':
+        # the default scheme for posix is posix_prefix
+        return 'posix_prefix'
+    return os.name
+
+
+def _getuserbase():
+    env_base = os.environ.get("PYTHONUSERBASE", None)
+
+    def joinuser(*args):
+        return os.path.expanduser(os.path.join(*args))
+
+    # what about 'os2emx', 'riscos' ?
+    if os.name == "nt":
+        base = os.environ.get("APPDATA") or "~"
+        if env_base:
+            return env_base
+        else:
+            return joinuser(base, "Python")
+
+    if sys.platform == "darwin":
+        framework = get_config_var("PYTHONFRAMEWORK")
+        if framework:
+            if env_base:
+                return env_base
+            else:
+                return joinuser("~", "Library", framework, "%d.%d" %
+                                sys.version_info[:2])
+
+    if env_base:
+        return env_base
+    else:
+        return joinuser("~", ".local")
+
+
+def _parse_makefile(filename, vars=None):
+    """Parse a Makefile-style file.
+
+    A dictionary containing name/value pairs is returned.  If an
+    optional dictionary is passed in as the second argument, it is
+    used instead of a new dictionary.
+    """
+    # Regexes needed for parsing Makefile (and similar syntaxes,
+    # like old-style Setup files).
+    _variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)")
+    _findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)")
+    _findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}")
+
+    if vars is None:
+        vars = {}
+    done = {}
+    notdone = {}
+
+    with codecs.open(filename, encoding='utf-8', errors="surrogateescape") as f:
+        lines = f.readlines()
+
+    for line in lines:
+        if line.startswith('#') or line.strip() == '':
+            continue
+        m = _variable_rx.match(line)
+        if m:
+            n, v = m.group(1, 2)
+            v = v.strip()
+            # `$$' is a literal `$' in make
+            tmpv = v.replace('$$', '')
+
+            if "$" in tmpv:
+                notdone[n] = v
+            else:
+                try:
+                    v = int(v)
+                except ValueError:
+                    # insert literal `$'
+                    done[n] = v.replace('$$', '$')
+                else:
+                    done[n] = v
+
+    # do variable interpolation here
+    variables = list(notdone.keys())
+
+    # Variables with a 'PY_' prefix in the makefile. These need to
+    # be made available without that prefix through sysconfig.
+    # Special care is needed to ensure that variable expansion works, even
+    # if the expansion uses the name without a prefix.
+    renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS')
+
+    while len(variables) > 0:
+        for name in tuple(variables):
+            value = notdone[name]
+            m = _findvar1_rx.search(value) or _findvar2_rx.search(value)
+            if m is not None:
+                n = m.group(1)
+                found = True
+                if n in done:
+                    item = str(done[n])
+                elif n in notdone:
+                    # get it on a subsequent round
+                    found = False
+                elif n in os.environ:
+                    # do it like make: fall back to environment
+                    item = os.environ[n]
+
+                elif n in renamed_variables:
+                    if (name.startswith('PY_') and
+                        name[3:] in renamed_variables):
+                        item = ""
+
+                    elif 'PY_' + n in notdone:
+                        found = False
+
+                    else:
+                        item = str(done['PY_' + n])
+
+                else:
+                    done[n] = item = ""
+
+                if found:
+                    after = value[m.end():]
+                    value = value[:m.start()] + item + after
+                    if "$" in after:
+                        notdone[name] = value
+                    else:
+                        try:
+                            value = int(value)
+                        except ValueError:
+                            done[name] = value.strip()
+                        else:
+                            done[name] = value
+                        variables.remove(name)
+
+                        if (name.startswith('PY_') and
+                            name[3:] in renamed_variables):
+
+                            name = name[3:]
+                            if name not in done:
+                                done[name] = value
+
+            else:
+                # bogus variable reference (e.g. "prefix=$/opt/python");
+                # just drop it since we can't deal
+                done[name] = value
+                variables.remove(name)
+
+    # strip spurious spaces
+    for k, v in done.items():
+        if isinstance(v, str):
+            done[k] = v.strip()
+
+    # save the results in the global dictionary
+    vars.update(done)
+    return vars
+
+
+def get_makefile_filename():
+    """Return the path of the Makefile."""
+    if _PYTHON_BUILD:
+        return os.path.join(_PROJECT_BASE, "Makefile")
+    if hasattr(sys, 'abiflags'):
+        config_dir_name = 'config-%s%s' % (_PY_VERSION_SHORT, sys.abiflags)
+    else:
+        config_dir_name = 'config'
+    return os.path.join(get_path('stdlib'), config_dir_name, 'Makefile')
+
+
+def _init_posix(vars):
+    """Initialize the module as appropriate for POSIX systems."""
+    # load the installed Makefile:
+    makefile = get_makefile_filename()
+    try:
+        _parse_makefile(makefile, vars)
+    except IOError as e:
+        msg = "invalid Python installation: unable to open %s" % makefile
+        if hasattr(e, "strerror"):
+            msg = msg + " (%s)" % e.strerror
+        raise IOError(msg)
+    # load the installed pyconfig.h:
+    config_h = get_config_h_filename()
+    try:
+        with open(config_h) as f:
+            parse_config_h(f, vars)
+    except IOError as e:
+        msg = "invalid Python installation: unable to open %s" % config_h
+        if hasattr(e, "strerror"):
+            msg = msg + " (%s)" % e.strerror
+        raise IOError(msg)
+    # On AIX, there are wrong paths to the linker scripts in the Makefile
+    # -- these paths are relative to the Python source, but when installed
+    # the scripts are in another directory.
+    if _PYTHON_BUILD:
+        vars['LDSHARED'] = vars['BLDSHARED']
+
+
+def _init_non_posix(vars):
+    """Initialize the module as appropriate for NT"""
+    # set basic install directories
+    vars['LIBDEST'] = get_path('stdlib')
+    vars['BINLIBDEST'] = get_path('platstdlib')
+    vars['INCLUDEPY'] = get_path('include')
+    vars['SO'] = '.pyd'
+    vars['EXE'] = '.exe'
+    vars['VERSION'] = _PY_VERSION_SHORT_NO_DOT
+    vars['BINDIR'] = os.path.dirname(_safe_realpath(sys.executable))
+
+#
+# public APIs
+#
+
+
+def parse_config_h(fp, vars=None):
+    """Parse a config.h-style file.
+
+    A dictionary containing name/value pairs is returned.  If an
+    optional dictionary is passed in as the second argument, it is
+    used instead of a new dictionary.
+    """
+    if vars is None:
+        vars = {}
+    define_rx = re.compile("#define ([A-Z][A-Za-z0-9_]+) (.*)\n")
+    undef_rx = re.compile("/[*] #undef ([A-Z][A-Za-z0-9_]+) [*]/\n")
+
+    while True:
+        line = fp.readline()
+        if not line:
+            break
+        m = define_rx.match(line)
+        if m:
+            n, v = m.group(1, 2)
+            try:
+                v = int(v)
+            except ValueError:
+                pass
+            vars[n] = v
+        else:
+            m = undef_rx.match(line)
+            if m:
+                vars[m.group(1)] = 0
+    return vars
+
+
+def get_config_h_filename():
+    """Return the path of pyconfig.h."""
+    if _PYTHON_BUILD:
+        if os.name == "nt":
+            inc_dir = os.path.join(_PROJECT_BASE, "PC")
+        else:
+            inc_dir = _PROJECT_BASE
+    else:
+        inc_dir = get_path('platinclude')
+    return os.path.join(inc_dir, 'pyconfig.h')
+
+
+def get_scheme_names():
+    """Return a tuple containing the schemes names."""
+    return tuple(sorted(_SCHEMES.sections()))
+
+
+def get_path_names():
+    """Return a tuple containing the paths names."""
+    # xxx see if we want a static list
+    return _SCHEMES.options('posix_prefix')
+
+
+def get_paths(scheme=_get_default_scheme(), vars=None, expand=True):
+    """Return a mapping containing an install scheme.
+
+    ``scheme`` is the install scheme name. If not provided, it will
+    return the default scheme for the current platform.
+    """
+    _ensure_cfg_read()
+    if expand:
+        return _expand_vars(scheme, vars)
+    else:
+        return dict(_SCHEMES.items(scheme))
+
+
+def get_path(name, scheme=_get_default_scheme(), vars=None, expand=True):
+    """Return a path corresponding to the scheme.
+
+    ``scheme`` is the install scheme name.
+    """
+    return get_paths(scheme, vars, expand)[name]
+
+
+def get_config_vars(*args):
+    """With no arguments, return a dictionary of all configuration
+    variables relevant for the current platform.
+
+    On Unix, this means every variable defined in Python's installed Makefile;
+    On Windows and Mac OS it's a much smaller set.
+
+    With arguments, return a list of values that result from looking up
+    each argument in the configuration variable dictionary.
+    """
+    global _CONFIG_VARS
+    if _CONFIG_VARS is None:
+        _CONFIG_VARS = {}
+        # Normalized versions of prefix and exec_prefix are handy to have;
+        # in fact, these are the standard versions used most places in the
+        # distutils2 module.
+        _CONFIG_VARS['prefix'] = _PREFIX
+        _CONFIG_VARS['exec_prefix'] = _EXEC_PREFIX
+        _CONFIG_VARS['py_version'] = _PY_VERSION
+        _CONFIG_VARS['py_version_short'] = _PY_VERSION_SHORT
+        _CONFIG_VARS['py_version_nodot'] = _PY_VERSION[0] + _PY_VERSION[2]
+        _CONFIG_VARS['base'] = _PREFIX
+        _CONFIG_VARS['platbase'] = _EXEC_PREFIX
+        _CONFIG_VARS['projectbase'] = _PROJECT_BASE
+        try:
+            _CONFIG_VARS['abiflags'] = sys.abiflags
+        except AttributeError:
+            # sys.abiflags may not be defined on all platforms.
+            _CONFIG_VARS['abiflags'] = ''
+
+        if os.name in ('nt', 'os2'):
+            _init_non_posix(_CONFIG_VARS)
+        if os.name == 'posix':
+            _init_posix(_CONFIG_VARS)
+        # Setting 'userbase' is done below the call to the
+        # init function to enable using 'get_config_var' in
+        # the init-function.
+        if sys.version >= '2.6':
+            _CONFIG_VARS['userbase'] = _getuserbase()
+
+        if 'srcdir' not in _CONFIG_VARS:
+            _CONFIG_VARS['srcdir'] = _PROJECT_BASE
+        else:
+            _CONFIG_VARS['srcdir'] = _safe_realpath(_CONFIG_VARS['srcdir'])
+
+        # Convert srcdir into an absolute path if it appears necessary.
+        # Normally it is relative to the build directory.  However, during
+        # testing, for example, we might be running a non-installed python
+        # from a different directory.
+        if _PYTHON_BUILD and os.name == "posix":
+            base = _PROJECT_BASE
+            try:
+                cwd = os.getcwd()
+            except OSError:
+                cwd = None
+            if (not os.path.isabs(_CONFIG_VARS['srcdir']) and
+                base != cwd):
+                # srcdir is relative and we are not in the same directory
+                # as the executable. Assume executable is in the build
+                # directory and make srcdir absolute.
+                srcdir = os.path.join(base, _CONFIG_VARS['srcdir'])
+                _CONFIG_VARS['srcdir'] = os.path.normpath(srcdir)
+
+        if sys.platform == 'darwin':
+            kernel_version = os.uname()[2]  # Kernel version (8.4.3)
+            major_version = int(kernel_version.split('.')[0])
+
+            if major_version < 8:
+                # On Mac OS X before 10.4, check if -arch and -isysroot
+                # are in CFLAGS or LDFLAGS and remove them if they are.
+                # This is needed when building extensions on a 10.3 system
+                # using a universal build of python.
+                for key in ('LDFLAGS', 'BASECFLAGS',
+                        # a number of derived variables. These need to be
+                        # patched up as well.
+                        'CFLAGS', 'PY_CFLAGS', 'BLDSHARED'):
+                    flags = _CONFIG_VARS[key]
+                    flags = re.sub(r'-arch\s+\w+\s', ' ', flags)
+                    flags = re.sub('-isysroot [^ \t]*', ' ', flags)
+                    _CONFIG_VARS[key] = flags
+            else:
+                # Allow the user to override the architecture flags using
+                # an environment variable.
+                # NOTE: This name was introduced by Apple in OSX 10.5 and
+                # is used by several scripting languages distributed with
+                # that OS release.
+                if 'ARCHFLAGS' in os.environ:
+                    arch = os.environ['ARCHFLAGS']
+                    for key in ('LDFLAGS', 'BASECFLAGS',
+                        # a number of derived variables. These need to be
+                        # patched up as well.
+                        'CFLAGS', 'PY_CFLAGS', 'BLDSHARED'):
+
+                        flags = _CONFIG_VARS[key]
+                        flags = re.sub(r'-arch\s+\w+\s', ' ', flags)
+                        flags = flags + ' ' + arch
+                        _CONFIG_VARS[key] = flags
+
+                # If we're on OSX 10.5 or later and the user tries to
+                # compiles an extension using an SDK that is not present
+                # on the current machine it is better to not use an SDK
+                # than to fail.
+                #
+                # The major usecase for this is users using a Python.org
+                # binary installer  on OSX 10.6: that installer uses
+                # the 10.4u SDK, but that SDK is not installed by default
+                # when you install Xcode.
+                #
+                CFLAGS = _CONFIG_VARS.get('CFLAGS', '')
+                m = re.search(r'-isysroot\s+(\S+)', CFLAGS)
+                if m is not None:
+                    sdk = m.group(1)
+                    if not os.path.exists(sdk):
+                        for key in ('LDFLAGS', 'BASECFLAGS',
+                             # a number of derived variables. These need to be
+                             # patched up as well.
+                            'CFLAGS', 'PY_CFLAGS', 'BLDSHARED'):
+
+                            flags = _CONFIG_VARS[key]
+                            flags = re.sub(r'-isysroot\s+\S+(\s|$)', ' ', flags)
+                            _CONFIG_VARS[key] = flags
+
+    if args:
+        vals = []
+        for name in args:
+            vals.append(_CONFIG_VARS.get(name))
+        return vals
+    else:
+        return _CONFIG_VARS
+
+
+def get_config_var(name):
+    """Return the value of a single variable using the dictionary returned by
+    'get_config_vars()'.
+
+    Equivalent to get_config_vars().get(name)
+    """
+    return get_config_vars().get(name)
+
+
+def get_platform():
+    """Return a string that identifies the current platform.
+
+    This is used mainly to distinguish platform-specific build directories and
+    platform-specific built distributions.  Typically includes the OS name
+    and version and the architecture (as supplied by 'os.uname()'),
+    although the exact information included depends on the OS; eg. for IRIX
+    the architecture isn't particularly important (IRIX only runs on SGI
+    hardware), but for Linux the kernel version isn't particularly
+    important.
+
+    Examples of returned values:
+       linux-i586
+       linux-alpha (?)
+       solaris-2.6-sun4u
+       irix-5.3
+       irix64-6.2
+
+    Windows will return one of:
+       win-amd64 (64bit Windows on AMD64 (aka x86_64, Intel64, EM64T, etc)
+       win-ia64 (64bit Windows on Itanium)
+       win32 (all others - specifically, sys.platform is returned)
+
+    For other non-POSIX platforms, currently just returns 'sys.platform'.
+    """
+    if os.name == 'nt':
+        # sniff sys.version for architecture.
+        prefix = " bit ("
+        i = sys.version.find(prefix)
+        if i == -1:
+            return sys.platform
+        j = sys.version.find(")", i)
+        look = sys.version[i+len(prefix):j].lower()
+        if look == 'amd64':
+            return 'win-amd64'
+        if look == 'itanium':
+            return 'win-ia64'
+        return sys.platform
+
+    if os.name != "posix" or not hasattr(os, 'uname'):
+        # XXX what about the architecture? NT is Intel or Alpha,
+        # Mac OS is M68k or PPC, etc.
+        return sys.platform
+
+    # Try to distinguish various flavours of Unix
+    osname, host, release, version, machine = os.uname()
+
+    # Convert the OS name to lowercase, remove '/' characters
+    # (to accommodate BSD/OS), and translate spaces (for "Power Macintosh")
+    osname = osname.lower().replace('/', '')
+    machine = machine.replace(' ', '_')
+    machine = machine.replace('/', '-')
+
+    if osname[:5] == "linux":
+        # At least on Linux/Intel, 'machine' is the processor --
+        # i386, etc.
+        # XXX what about Alpha, SPARC, etc?
+        return  "%s-%s" % (osname, machine)
+    elif osname[:5] == "sunos":
+        if release[0] >= "5":           # SunOS 5 == Solaris 2
+            osname = "solaris"
+            release = "%d.%s" % (int(release[0]) - 3, release[2:])
+        # fall through to standard osname-release-machine representation
+    elif osname[:4] == "irix":              # could be "irix64"!
+        return "%s-%s" % (osname, release)
+    elif osname[:3] == "aix":
+        return "%s-%s.%s" % (osname, version, release)
+    elif osname[:6] == "cygwin":
+        osname = "cygwin"
+        rel_re = re.compile(r'[\d.]+')
+        m = rel_re.match(release)
+        if m:
+            release = m.group()
+    elif osname[:6] == "darwin":
+        #
+        # For our purposes, we'll assume that the system version from
+        # distutils' perspective is what MACOSX_DEPLOYMENT_TARGET is set
+        # to. This makes the compatibility story a bit more sane because the
+        # machine is going to compile and link as if it were
+        # MACOSX_DEPLOYMENT_TARGET.
+        cfgvars = get_config_vars()
+        macver = cfgvars.get('MACOSX_DEPLOYMENT_TARGET')
+
+        if True:
+            # Always calculate the release of the running machine,
+            # needed to determine if we can build fat binaries or not.
+
+            macrelease = macver
+            # Get the system version. Reading this plist is a documented
+            # way to get the system version (see the documentation for
+            # the Gestalt Manager)
+            try:
+                f = open('/System/Library/CoreServices/SystemVersion.plist')
+            except IOError:
+                # We're on a plain darwin box, fall back to the default
+                # behaviour.
+                pass
+            else:
+                try:
+                    m = re.search(r'ProductUserVisibleVersion\s*'
+                                  r'(.*?)', f.read())
+                finally:
+                    f.close()
+                if m is not None:
+                    macrelease = '.'.join(m.group(1).split('.')[:2])
+                # else: fall back to the default behaviour
+
+        if not macver:
+            macver = macrelease
+
+        if macver:
+            release = macver
+            osname = "macosx"
+
+            if ((macrelease + '.') >= '10.4.' and
+                '-arch' in get_config_vars().get('CFLAGS', '').strip()):
+                # The universal build will build fat binaries, but not on
+                # systems before 10.4
+                #
+                # Try to detect 4-way universal builds, those have machine-type
+                # 'universal' instead of 'fat'.
+
+                machine = 'fat'
+                cflags = get_config_vars().get('CFLAGS')
+
+                archs = re.findall(r'-arch\s+(\S+)', cflags)
+                archs = tuple(sorted(set(archs)))
+
+                if len(archs) == 1:
+                    machine = archs[0]
+                elif archs == ('i386', 'ppc'):
+                    machine = 'fat'
+                elif archs == ('i386', 'x86_64'):
+                    machine = 'intel'
+                elif archs == ('i386', 'ppc', 'x86_64'):
+                    machine = 'fat3'
+                elif archs == ('ppc64', 'x86_64'):
+                    machine = 'fat64'
+                elif archs == ('i386', 'ppc', 'ppc64', 'x86_64'):
+                    machine = 'universal'
+                else:
+                    raise ValueError(
+                       "Don't know machine value for archs=%r" % (archs,))
+
+            elif machine == 'i386':
+                # On OSX the machine type returned by uname is always the
+                # 32-bit variant, even if the executable architecture is
+                # the 64-bit variant
+                if sys.maxsize >= 2**32:
+                    machine = 'x86_64'
+
+            elif machine in ('PowerPC', 'Power_Macintosh'):
+                # Pick a sane name for the PPC architecture.
+                # See 'i386' case
+                if sys.maxsize >= 2**32:
+                    machine = 'ppc64'
+                else:
+                    machine = 'ppc'
+
+    return "%s-%s-%s" % (osname, release, machine)
+
+
+def get_python_version():
+    return _PY_VERSION_SHORT
+
+
+def _print_dict(title, data):
+    for index, (key, value) in enumerate(sorted(data.items())):
+        if index == 0:
+            print('%s: ' % (title))
+        print('\t%s = "%s"' % (key, value))
+
+
+def _main():
+    """Display all information sysconfig detains."""
+    print('Platform: "%s"' % get_platform())
+    print('Python version: "%s"' % get_python_version())
+    print('Current installation scheme: "%s"' % _get_default_scheme())
+    print()
+    _print_dict('Paths', get_paths())
+    print()
+    _print_dict('Variables', get_config_vars())
+
+
+if __name__ == '__main__':
+    _main()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/tarfile.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/tarfile.py
new file mode 100644
index 0000000..d66d856
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/_backport/tarfile.py
@@ -0,0 +1,2607 @@
+#-------------------------------------------------------------------
+# tarfile.py
+#-------------------------------------------------------------------
+# Copyright (C) 2002 Lars Gustaebel 
+# All rights reserved.
+#
+# Permission  is  hereby granted,  free  of charge,  to  any person
+# obtaining a  copy of  this software  and associated documentation
+# files  (the  "Software"),  to   deal  in  the  Software   without
+# restriction,  including  without limitation  the  rights to  use,
+# copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies  of  the  Software,  and to  permit  persons  to  whom the
+# Software  is  furnished  to  do  so,  subject  to  the  following
+# conditions:
+#
+# The above copyright  notice and this  permission notice shall  be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS  IS", WITHOUT WARRANTY OF ANY  KIND,
+# EXPRESS OR IMPLIED, INCLUDING  BUT NOT LIMITED TO  THE WARRANTIES
+# OF  MERCHANTABILITY,  FITNESS   FOR  A  PARTICULAR   PURPOSE  AND
+# NONINFRINGEMENT.  IN  NO  EVENT SHALL  THE  AUTHORS  OR COPYRIGHT
+# HOLDERS  BE LIABLE  FOR ANY  CLAIM, DAMAGES  OR OTHER  LIABILITY,
+# WHETHER  IN AN  ACTION OF  CONTRACT, TORT  OR OTHERWISE,  ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+from __future__ import print_function
+
+"""Read from and write to tar format archives.
+"""
+
+__version__ = "$Revision$"
+
+version     = "0.9.0"
+__author__  = "Lars Gust\u00e4bel (lars@gustaebel.de)"
+__date__    = "$Date: 2011-02-25 17:42:01 +0200 (Fri, 25 Feb 2011) $"
+__cvsid__   = "$Id: tarfile.py 88586 2011-02-25 15:42:01Z marc-andre.lemburg $"
+__credits__ = "Gustavo Niemeyer, Niels Gust\u00e4bel, Richard Townsend."
+
+#---------
+# Imports
+#---------
+import sys
+import os
+import stat
+import errno
+import time
+import struct
+import copy
+import re
+
+try:
+    import grp, pwd
+except ImportError:
+    grp = pwd = None
+
+# os.symlink on Windows prior to 6.0 raises NotImplementedError
+symlink_exception = (AttributeError, NotImplementedError)
+try:
+    # WindowsError (1314) will be raised if the caller does not hold the
+    # SeCreateSymbolicLinkPrivilege privilege
+    symlink_exception += (WindowsError,)
+except NameError:
+    pass
+
+# from tarfile import *
+__all__ = ["TarFile", "TarInfo", "is_tarfile", "TarError"]
+
+if sys.version_info[0] < 3:
+    import __builtin__ as builtins
+else:
+    import builtins
+
+_open = builtins.open   # Since 'open' is TarFile.open
+
+#---------------------------------------------------------
+# tar constants
+#---------------------------------------------------------
+NUL = b"\0"                     # the null character
+BLOCKSIZE = 512                 # length of processing blocks
+RECORDSIZE = BLOCKSIZE * 20     # length of records
+GNU_MAGIC = b"ustar  \0"        # magic gnu tar string
+POSIX_MAGIC = b"ustar\x0000"    # magic posix tar string
+
+LENGTH_NAME = 100               # maximum length of a filename
+LENGTH_LINK = 100               # maximum length of a linkname
+LENGTH_PREFIX = 155             # maximum length of the prefix field
+
+REGTYPE = b"0"                  # regular file
+AREGTYPE = b"\0"                # regular file
+LNKTYPE = b"1"                  # link (inside tarfile)
+SYMTYPE = b"2"                  # symbolic link
+CHRTYPE = b"3"                  # character special device
+BLKTYPE = b"4"                  # block special device
+DIRTYPE = b"5"                  # directory
+FIFOTYPE = b"6"                 # fifo special device
+CONTTYPE = b"7"                 # contiguous file
+
+GNUTYPE_LONGNAME = b"L"         # GNU tar longname
+GNUTYPE_LONGLINK = b"K"         # GNU tar longlink
+GNUTYPE_SPARSE = b"S"           # GNU tar sparse file
+
+XHDTYPE = b"x"                  # POSIX.1-2001 extended header
+XGLTYPE = b"g"                  # POSIX.1-2001 global header
+SOLARIS_XHDTYPE = b"X"          # Solaris extended header
+
+USTAR_FORMAT = 0                # POSIX.1-1988 (ustar) format
+GNU_FORMAT = 1                  # GNU tar format
+PAX_FORMAT = 2                  # POSIX.1-2001 (pax) format
+DEFAULT_FORMAT = GNU_FORMAT
+
+#---------------------------------------------------------
+# tarfile constants
+#---------------------------------------------------------
+# File types that tarfile supports:
+SUPPORTED_TYPES = (REGTYPE, AREGTYPE, LNKTYPE,
+                   SYMTYPE, DIRTYPE, FIFOTYPE,
+                   CONTTYPE, CHRTYPE, BLKTYPE,
+                   GNUTYPE_LONGNAME, GNUTYPE_LONGLINK,
+                   GNUTYPE_SPARSE)
+
+# File types that will be treated as a regular file.
+REGULAR_TYPES = (REGTYPE, AREGTYPE,
+                 CONTTYPE, GNUTYPE_SPARSE)
+
+# File types that are part of the GNU tar format.
+GNU_TYPES = (GNUTYPE_LONGNAME, GNUTYPE_LONGLINK,
+             GNUTYPE_SPARSE)
+
+# Fields from a pax header that override a TarInfo attribute.
+PAX_FIELDS = ("path", "linkpath", "size", "mtime",
+              "uid", "gid", "uname", "gname")
+
+# Fields from a pax header that are affected by hdrcharset.
+PAX_NAME_FIELDS = set(("path", "linkpath", "uname", "gname"))
+
+# Fields in a pax header that are numbers, all other fields
+# are treated as strings.
+PAX_NUMBER_FIELDS = {
+    "atime": float,
+    "ctime": float,
+    "mtime": float,
+    "uid": int,
+    "gid": int,
+    "size": int
+}
+
+#---------------------------------------------------------
+# Bits used in the mode field, values in octal.
+#---------------------------------------------------------
+S_IFLNK = 0o120000        # symbolic link
+S_IFREG = 0o100000        # regular file
+S_IFBLK = 0o060000        # block device
+S_IFDIR = 0o040000        # directory
+S_IFCHR = 0o020000        # character device
+S_IFIFO = 0o010000        # fifo
+
+TSUID   = 0o4000          # set UID on execution
+TSGID   = 0o2000          # set GID on execution
+TSVTX   = 0o1000          # reserved
+
+TUREAD  = 0o400           # read by owner
+TUWRITE = 0o200           # write by owner
+TUEXEC  = 0o100           # execute/search by owner
+TGREAD  = 0o040           # read by group
+TGWRITE = 0o020           # write by group
+TGEXEC  = 0o010           # execute/search by group
+TOREAD  = 0o004           # read by other
+TOWRITE = 0o002           # write by other
+TOEXEC  = 0o001           # execute/search by other
+
+#---------------------------------------------------------
+# initialization
+#---------------------------------------------------------
+if os.name in ("nt", "ce"):
+    ENCODING = "utf-8"
+else:
+    ENCODING = sys.getfilesystemencoding()
+
+#---------------------------------------------------------
+# Some useful functions
+#---------------------------------------------------------
+
+def stn(s, length, encoding, errors):
+    """Convert a string to a null-terminated bytes object.
+    """
+    s = s.encode(encoding, errors)
+    return s[:length] + (length - len(s)) * NUL
+
+def nts(s, encoding, errors):
+    """Convert a null-terminated bytes object to a string.
+    """
+    p = s.find(b"\0")
+    if p != -1:
+        s = s[:p]
+    return s.decode(encoding, errors)
+
+def nti(s):
+    """Convert a number field to a python number.
+    """
+    # There are two possible encodings for a number field, see
+    # itn() below.
+    if s[0] != chr(0o200):
+        try:
+            n = int(nts(s, "ascii", "strict") or "0", 8)
+        except ValueError:
+            raise InvalidHeaderError("invalid header")
+    else:
+        n = 0
+        for i in range(len(s) - 1):
+            n <<= 8
+            n += ord(s[i + 1])
+    return n
+
+def itn(n, digits=8, format=DEFAULT_FORMAT):
+    """Convert a python number to a number field.
+    """
+    # POSIX 1003.1-1988 requires numbers to be encoded as a string of
+    # octal digits followed by a null-byte, this allows values up to
+    # (8**(digits-1))-1. GNU tar allows storing numbers greater than
+    # that if necessary. A leading 0o200 byte indicates this particular
+    # encoding, the following digits-1 bytes are a big-endian
+    # representation. This allows values up to (256**(digits-1))-1.
+    if 0 <= n < 8 ** (digits - 1):
+        s = ("%0*o" % (digits - 1, n)).encode("ascii") + NUL
+    else:
+        if format != GNU_FORMAT or n >= 256 ** (digits - 1):
+            raise ValueError("overflow in number field")
+
+        if n < 0:
+            # XXX We mimic GNU tar's behaviour with negative numbers,
+            # this could raise OverflowError.
+            n = struct.unpack("L", struct.pack("l", n))[0]
+
+        s = bytearray()
+        for i in range(digits - 1):
+            s.insert(0, n & 0o377)
+            n >>= 8
+        s.insert(0, 0o200)
+    return s
+
+def calc_chksums(buf):
+    """Calculate the checksum for a member's header by summing up all
+       characters except for the chksum field which is treated as if
+       it was filled with spaces. According to the GNU tar sources,
+       some tars (Sun and NeXT) calculate chksum with signed char,
+       which will be different if there are chars in the buffer with
+       the high bit set. So we calculate two checksums, unsigned and
+       signed.
+    """
+    unsigned_chksum = 256 + sum(struct.unpack("148B", buf[:148]) + struct.unpack("356B", buf[156:512]))
+    signed_chksum = 256 + sum(struct.unpack("148b", buf[:148]) + struct.unpack("356b", buf[156:512]))
+    return unsigned_chksum, signed_chksum
+
+def copyfileobj(src, dst, length=None):
+    """Copy length bytes from fileobj src to fileobj dst.
+       If length is None, copy the entire content.
+    """
+    if length == 0:
+        return
+    if length is None:
+        while True:
+            buf = src.read(16*1024)
+            if not buf:
+                break
+            dst.write(buf)
+        return
+
+    BUFSIZE = 16 * 1024
+    blocks, remainder = divmod(length, BUFSIZE)
+    for b in range(blocks):
+        buf = src.read(BUFSIZE)
+        if len(buf) < BUFSIZE:
+            raise IOError("end of file reached")
+        dst.write(buf)
+
+    if remainder != 0:
+        buf = src.read(remainder)
+        if len(buf) < remainder:
+            raise IOError("end of file reached")
+        dst.write(buf)
+    return
+
+filemode_table = (
+    ((S_IFLNK,      "l"),
+     (S_IFREG,      "-"),
+     (S_IFBLK,      "b"),
+     (S_IFDIR,      "d"),
+     (S_IFCHR,      "c"),
+     (S_IFIFO,      "p")),
+
+    ((TUREAD,       "r"),),
+    ((TUWRITE,      "w"),),
+    ((TUEXEC|TSUID, "s"),
+     (TSUID,        "S"),
+     (TUEXEC,       "x")),
+
+    ((TGREAD,       "r"),),
+    ((TGWRITE,      "w"),),
+    ((TGEXEC|TSGID, "s"),
+     (TSGID,        "S"),
+     (TGEXEC,       "x")),
+
+    ((TOREAD,       "r"),),
+    ((TOWRITE,      "w"),),
+    ((TOEXEC|TSVTX, "t"),
+     (TSVTX,        "T"),
+     (TOEXEC,       "x"))
+)
+
+def filemode(mode):
+    """Convert a file's mode to a string of the form
+       -rwxrwxrwx.
+       Used by TarFile.list()
+    """
+    perm = []
+    for table in filemode_table:
+        for bit, char in table:
+            if mode & bit == bit:
+                perm.append(char)
+                break
+        else:
+            perm.append("-")
+    return "".join(perm)
+
+class TarError(Exception):
+    """Base exception."""
+    pass
+class ExtractError(TarError):
+    """General exception for extract errors."""
+    pass
+class ReadError(TarError):
+    """Exception for unreadable tar archives."""
+    pass
+class CompressionError(TarError):
+    """Exception for unavailable compression methods."""
+    pass
+class StreamError(TarError):
+    """Exception for unsupported operations on stream-like TarFiles."""
+    pass
+class HeaderError(TarError):
+    """Base exception for header errors."""
+    pass
+class EmptyHeaderError(HeaderError):
+    """Exception for empty headers."""
+    pass
+class TruncatedHeaderError(HeaderError):
+    """Exception for truncated headers."""
+    pass
+class EOFHeaderError(HeaderError):
+    """Exception for end of file headers."""
+    pass
+class InvalidHeaderError(HeaderError):
+    """Exception for invalid headers."""
+    pass
+class SubsequentHeaderError(HeaderError):
+    """Exception for missing and invalid extended headers."""
+    pass
+
+#---------------------------
+# internal stream interface
+#---------------------------
+class _LowLevelFile(object):
+    """Low-level file object. Supports reading and writing.
+       It is used instead of a regular file object for streaming
+       access.
+    """
+
+    def __init__(self, name, mode):
+        mode = {
+            "r": os.O_RDONLY,
+            "w": os.O_WRONLY | os.O_CREAT | os.O_TRUNC,
+        }[mode]
+        if hasattr(os, "O_BINARY"):
+            mode |= os.O_BINARY
+        self.fd = os.open(name, mode, 0o666)
+
+    def close(self):
+        os.close(self.fd)
+
+    def read(self, size):
+        return os.read(self.fd, size)
+
+    def write(self, s):
+        os.write(self.fd, s)
+
+class _Stream(object):
+    """Class that serves as an adapter between TarFile and
+       a stream-like object.  The stream-like object only
+       needs to have a read() or write() method and is accessed
+       blockwise.  Use of gzip or bzip2 compression is possible.
+       A stream-like object could be for example: sys.stdin,
+       sys.stdout, a socket, a tape device etc.
+
+       _Stream is intended to be used only internally.
+    """
+
+    def __init__(self, name, mode, comptype, fileobj, bufsize):
+        """Construct a _Stream object.
+        """
+        self._extfileobj = True
+        if fileobj is None:
+            fileobj = _LowLevelFile(name, mode)
+            self._extfileobj = False
+
+        if comptype == '*':
+            # Enable transparent compression detection for the
+            # stream interface
+            fileobj = _StreamProxy(fileobj)
+            comptype = fileobj.getcomptype()
+
+        self.name     = name or ""
+        self.mode     = mode
+        self.comptype = comptype
+        self.fileobj  = fileobj
+        self.bufsize  = bufsize
+        self.buf      = b""
+        self.pos      = 0
+        self.closed   = False
+
+        try:
+            if comptype == "gz":
+                try:
+                    import zlib
+                except ImportError:
+                    raise CompressionError("zlib module is not available")
+                self.zlib = zlib
+                self.crc = zlib.crc32(b"")
+                if mode == "r":
+                    self._init_read_gz()
+                else:
+                    self._init_write_gz()
+
+            if comptype == "bz2":
+                try:
+                    import bz2
+                except ImportError:
+                    raise CompressionError("bz2 module is not available")
+                if mode == "r":
+                    self.dbuf = b""
+                    self.cmp = bz2.BZ2Decompressor()
+                else:
+                    self.cmp = bz2.BZ2Compressor()
+        except:
+            if not self._extfileobj:
+                self.fileobj.close()
+            self.closed = True
+            raise
+
+    def __del__(self):
+        if hasattr(self, "closed") and not self.closed:
+            self.close()
+
+    def _init_write_gz(self):
+        """Initialize for writing with gzip compression.
+        """
+        self.cmp = self.zlib.compressobj(9, self.zlib.DEFLATED,
+                                            -self.zlib.MAX_WBITS,
+                                            self.zlib.DEF_MEM_LEVEL,
+                                            0)
+        timestamp = struct.pack(" self.bufsize:
+            self.fileobj.write(self.buf[:self.bufsize])
+            self.buf = self.buf[self.bufsize:]
+
+    def close(self):
+        """Close the _Stream object. No operation should be
+           done on it afterwards.
+        """
+        if self.closed:
+            return
+
+        if self.mode == "w" and self.comptype != "tar":
+            self.buf += self.cmp.flush()
+
+        if self.mode == "w" and self.buf:
+            self.fileobj.write(self.buf)
+            self.buf = b""
+            if self.comptype == "gz":
+                # The native zlib crc is an unsigned 32-bit integer, but
+                # the Python wrapper implicitly casts that to a signed C
+                # long.  So, on a 32-bit box self.crc may "look negative",
+                # while the same crc on a 64-bit box may "look positive".
+                # To avoid irksome warnings from the `struct` module, force
+                # it to look positive on all boxes.
+                self.fileobj.write(struct.pack("= 0:
+            blocks, remainder = divmod(pos - self.pos, self.bufsize)
+            for i in range(blocks):
+                self.read(self.bufsize)
+            self.read(remainder)
+        else:
+            raise StreamError("seeking backwards is not allowed")
+        return self.pos
+
+    def read(self, size=None):
+        """Return the next size number of bytes from the stream.
+           If size is not defined, return all bytes of the stream
+           up to EOF.
+        """
+        if size is None:
+            t = []
+            while True:
+                buf = self._read(self.bufsize)
+                if not buf:
+                    break
+                t.append(buf)
+            buf = "".join(t)
+        else:
+            buf = self._read(size)
+        self.pos += len(buf)
+        return buf
+
+    def _read(self, size):
+        """Return size bytes from the stream.
+        """
+        if self.comptype == "tar":
+            return self.__read(size)
+
+        c = len(self.dbuf)
+        while c < size:
+            buf = self.__read(self.bufsize)
+            if not buf:
+                break
+            try:
+                buf = self.cmp.decompress(buf)
+            except IOError:
+                raise ReadError("invalid compressed data")
+            self.dbuf += buf
+            c += len(buf)
+        buf = self.dbuf[:size]
+        self.dbuf = self.dbuf[size:]
+        return buf
+
+    def __read(self, size):
+        """Return size bytes from stream. If internal buffer is empty,
+           read another block from the stream.
+        """
+        c = len(self.buf)
+        while c < size:
+            buf = self.fileobj.read(self.bufsize)
+            if not buf:
+                break
+            self.buf += buf
+            c += len(buf)
+        buf = self.buf[:size]
+        self.buf = self.buf[size:]
+        return buf
+# class _Stream
+
+class _StreamProxy(object):
+    """Small proxy class that enables transparent compression
+       detection for the Stream interface (mode 'r|*').
+    """
+
+    def __init__(self, fileobj):
+        self.fileobj = fileobj
+        self.buf = self.fileobj.read(BLOCKSIZE)
+
+    def read(self, size):
+        self.read = self.fileobj.read
+        return self.buf
+
+    def getcomptype(self):
+        if self.buf.startswith(b"\037\213\010"):
+            return "gz"
+        if self.buf.startswith(b"BZh91"):
+            return "bz2"
+        return "tar"
+
+    def close(self):
+        self.fileobj.close()
+# class StreamProxy
+
+class _BZ2Proxy(object):
+    """Small proxy class that enables external file object
+       support for "r:bz2" and "w:bz2" modes. This is actually
+       a workaround for a limitation in bz2 module's BZ2File
+       class which (unlike gzip.GzipFile) has no support for
+       a file object argument.
+    """
+
+    blocksize = 16 * 1024
+
+    def __init__(self, fileobj, mode):
+        self.fileobj = fileobj
+        self.mode = mode
+        self.name = getattr(self.fileobj, "name", None)
+        self.init()
+
+    def init(self):
+        import bz2
+        self.pos = 0
+        if self.mode == "r":
+            self.bz2obj = bz2.BZ2Decompressor()
+            self.fileobj.seek(0)
+            self.buf = b""
+        else:
+            self.bz2obj = bz2.BZ2Compressor()
+
+    def read(self, size):
+        x = len(self.buf)
+        while x < size:
+            raw = self.fileobj.read(self.blocksize)
+            if not raw:
+                break
+            data = self.bz2obj.decompress(raw)
+            self.buf += data
+            x += len(data)
+
+        buf = self.buf[:size]
+        self.buf = self.buf[size:]
+        self.pos += len(buf)
+        return buf
+
+    def seek(self, pos):
+        if pos < self.pos:
+            self.init()
+        self.read(pos - self.pos)
+
+    def tell(self):
+        return self.pos
+
+    def write(self, data):
+        self.pos += len(data)
+        raw = self.bz2obj.compress(data)
+        self.fileobj.write(raw)
+
+    def close(self):
+        if self.mode == "w":
+            raw = self.bz2obj.flush()
+            self.fileobj.write(raw)
+# class _BZ2Proxy
+
+#------------------------
+# Extraction file object
+#------------------------
+class _FileInFile(object):
+    """A thin wrapper around an existing file object that
+       provides a part of its data as an individual file
+       object.
+    """
+
+    def __init__(self, fileobj, offset, size, blockinfo=None):
+        self.fileobj = fileobj
+        self.offset = offset
+        self.size = size
+        self.position = 0
+
+        if blockinfo is None:
+            blockinfo = [(0, size)]
+
+        # Construct a map with data and zero blocks.
+        self.map_index = 0
+        self.map = []
+        lastpos = 0
+        realpos = self.offset
+        for offset, size in blockinfo:
+            if offset > lastpos:
+                self.map.append((False, lastpos, offset, None))
+            self.map.append((True, offset, offset + size, realpos))
+            realpos += size
+            lastpos = offset + size
+        if lastpos < self.size:
+            self.map.append((False, lastpos, self.size, None))
+
+    def seekable(self):
+        if not hasattr(self.fileobj, "seekable"):
+            # XXX gzip.GzipFile and bz2.BZ2File
+            return True
+        return self.fileobj.seekable()
+
+    def tell(self):
+        """Return the current file position.
+        """
+        return self.position
+
+    def seek(self, position):
+        """Seek to a position in the file.
+        """
+        self.position = position
+
+    def read(self, size=None):
+        """Read data from the file.
+        """
+        if size is None:
+            size = self.size - self.position
+        else:
+            size = min(size, self.size - self.position)
+
+        buf = b""
+        while size > 0:
+            while True:
+                data, start, stop, offset = self.map[self.map_index]
+                if start <= self.position < stop:
+                    break
+                else:
+                    self.map_index += 1
+                    if self.map_index == len(self.map):
+                        self.map_index = 0
+            length = min(size, stop - self.position)
+            if data:
+                self.fileobj.seek(offset + (self.position - start))
+                buf += self.fileobj.read(length)
+            else:
+                buf += NUL * length
+            size -= length
+            self.position += length
+        return buf
+#class _FileInFile
+
+
+class ExFileObject(object):
+    """File-like object for reading an archive member.
+       Is returned by TarFile.extractfile().
+    """
+    blocksize = 1024
+
+    def __init__(self, tarfile, tarinfo):
+        self.fileobj = _FileInFile(tarfile.fileobj,
+                                   tarinfo.offset_data,
+                                   tarinfo.size,
+                                   tarinfo.sparse)
+        self.name = tarinfo.name
+        self.mode = "r"
+        self.closed = False
+        self.size = tarinfo.size
+
+        self.position = 0
+        self.buffer = b""
+
+    def readable(self):
+        return True
+
+    def writable(self):
+        return False
+
+    def seekable(self):
+        return self.fileobj.seekable()
+
+    def read(self, size=None):
+        """Read at most size bytes from the file. If size is not
+           present or None, read all data until EOF is reached.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed file")
+
+        buf = b""
+        if self.buffer:
+            if size is None:
+                buf = self.buffer
+                self.buffer = b""
+            else:
+                buf = self.buffer[:size]
+                self.buffer = self.buffer[size:]
+
+        if size is None:
+            buf += self.fileobj.read()
+        else:
+            buf += self.fileobj.read(size - len(buf))
+
+        self.position += len(buf)
+        return buf
+
+    # XXX TextIOWrapper uses the read1() method.
+    read1 = read
+
+    def readline(self, size=-1):
+        """Read one entire line from the file. If size is present
+           and non-negative, return a string with at most that
+           size, which may be an incomplete line.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed file")
+
+        pos = self.buffer.find(b"\n") + 1
+        if pos == 0:
+            # no newline found.
+            while True:
+                buf = self.fileobj.read(self.blocksize)
+                self.buffer += buf
+                if not buf or b"\n" in buf:
+                    pos = self.buffer.find(b"\n") + 1
+                    if pos == 0:
+                        # no newline found.
+                        pos = len(self.buffer)
+                    break
+
+        if size != -1:
+            pos = min(size, pos)
+
+        buf = self.buffer[:pos]
+        self.buffer = self.buffer[pos:]
+        self.position += len(buf)
+        return buf
+
+    def readlines(self):
+        """Return a list with all remaining lines.
+        """
+        result = []
+        while True:
+            line = self.readline()
+            if not line: break
+            result.append(line)
+        return result
+
+    def tell(self):
+        """Return the current file position.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed file")
+
+        return self.position
+
+    def seek(self, pos, whence=os.SEEK_SET):
+        """Seek to a position in the file.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed file")
+
+        if whence == os.SEEK_SET:
+            self.position = min(max(pos, 0), self.size)
+        elif whence == os.SEEK_CUR:
+            if pos < 0:
+                self.position = max(self.position + pos, 0)
+            else:
+                self.position = min(self.position + pos, self.size)
+        elif whence == os.SEEK_END:
+            self.position = max(min(self.size + pos, self.size), 0)
+        else:
+            raise ValueError("Invalid argument")
+
+        self.buffer = b""
+        self.fileobj.seek(self.position)
+
+    def close(self):
+        """Close the file object.
+        """
+        self.closed = True
+
+    def __iter__(self):
+        """Get an iterator over the file's lines.
+        """
+        while True:
+            line = self.readline()
+            if not line:
+                break
+            yield line
+#class ExFileObject
+
+#------------------
+# Exported Classes
+#------------------
+class TarInfo(object):
+    """Informational class which holds the details about an
+       archive member given by a tar header block.
+       TarInfo objects are returned by TarFile.getmember(),
+       TarFile.getmembers() and TarFile.gettarinfo() and are
+       usually created internally.
+    """
+
+    __slots__ = ("name", "mode", "uid", "gid", "size", "mtime",
+                 "chksum", "type", "linkname", "uname", "gname",
+                 "devmajor", "devminor",
+                 "offset", "offset_data", "pax_headers", "sparse",
+                 "tarfile", "_sparse_structs", "_link_target")
+
+    def __init__(self, name=""):
+        """Construct a TarInfo object. name is the optional name
+           of the member.
+        """
+        self.name = name        # member name
+        self.mode = 0o644       # file permissions
+        self.uid = 0            # user id
+        self.gid = 0            # group id
+        self.size = 0           # file size
+        self.mtime = 0          # modification time
+        self.chksum = 0         # header checksum
+        self.type = REGTYPE     # member type
+        self.linkname = ""      # link name
+        self.uname = ""         # user name
+        self.gname = ""         # group name
+        self.devmajor = 0       # device major number
+        self.devminor = 0       # device minor number
+
+        self.offset = 0         # the tar header starts here
+        self.offset_data = 0    # the file's data starts here
+
+        self.sparse = None      # sparse member information
+        self.pax_headers = {}   # pax header information
+
+    # In pax headers the "name" and "linkname" field are called
+    # "path" and "linkpath".
+    def _getpath(self):
+        return self.name
+    def _setpath(self, name):
+        self.name = name
+    path = property(_getpath, _setpath)
+
+    def _getlinkpath(self):
+        return self.linkname
+    def _setlinkpath(self, linkname):
+        self.linkname = linkname
+    linkpath = property(_getlinkpath, _setlinkpath)
+
+    def __repr__(self):
+        return "<%s %r at %#x>" % (self.__class__.__name__,self.name,id(self))
+
+    def get_info(self):
+        """Return the TarInfo's attributes as a dictionary.
+        """
+        info = {
+            "name":     self.name,
+            "mode":     self.mode & 0o7777,
+            "uid":      self.uid,
+            "gid":      self.gid,
+            "size":     self.size,
+            "mtime":    self.mtime,
+            "chksum":   self.chksum,
+            "type":     self.type,
+            "linkname": self.linkname,
+            "uname":    self.uname,
+            "gname":    self.gname,
+            "devmajor": self.devmajor,
+            "devminor": self.devminor
+        }
+
+        if info["type"] == DIRTYPE and not info["name"].endswith("/"):
+            info["name"] += "/"
+
+        return info
+
+    def tobuf(self, format=DEFAULT_FORMAT, encoding=ENCODING, errors="surrogateescape"):
+        """Return a tar header as a string of 512 byte blocks.
+        """
+        info = self.get_info()
+
+        if format == USTAR_FORMAT:
+            return self.create_ustar_header(info, encoding, errors)
+        elif format == GNU_FORMAT:
+            return self.create_gnu_header(info, encoding, errors)
+        elif format == PAX_FORMAT:
+            return self.create_pax_header(info, encoding)
+        else:
+            raise ValueError("invalid format")
+
+    def create_ustar_header(self, info, encoding, errors):
+        """Return the object as a ustar header block.
+        """
+        info["magic"] = POSIX_MAGIC
+
+        if len(info["linkname"]) > LENGTH_LINK:
+            raise ValueError("linkname is too long")
+
+        if len(info["name"]) > LENGTH_NAME:
+            info["prefix"], info["name"] = self._posix_split_name(info["name"])
+
+        return self._create_header(info, USTAR_FORMAT, encoding, errors)
+
+    def create_gnu_header(self, info, encoding, errors):
+        """Return the object as a GNU header block sequence.
+        """
+        info["magic"] = GNU_MAGIC
+
+        buf = b""
+        if len(info["linkname"]) > LENGTH_LINK:
+            buf += self._create_gnu_long_header(info["linkname"], GNUTYPE_LONGLINK, encoding, errors)
+
+        if len(info["name"]) > LENGTH_NAME:
+            buf += self._create_gnu_long_header(info["name"], GNUTYPE_LONGNAME, encoding, errors)
+
+        return buf + self._create_header(info, GNU_FORMAT, encoding, errors)
+
+    def create_pax_header(self, info, encoding):
+        """Return the object as a ustar header block. If it cannot be
+           represented this way, prepend a pax extended header sequence
+           with supplement information.
+        """
+        info["magic"] = POSIX_MAGIC
+        pax_headers = self.pax_headers.copy()
+
+        # Test string fields for values that exceed the field length or cannot
+        # be represented in ASCII encoding.
+        for name, hname, length in (
+                ("name", "path", LENGTH_NAME), ("linkname", "linkpath", LENGTH_LINK),
+                ("uname", "uname", 32), ("gname", "gname", 32)):
+
+            if hname in pax_headers:
+                # The pax header has priority.
+                continue
+
+            # Try to encode the string as ASCII.
+            try:
+                info[name].encode("ascii", "strict")
+            except UnicodeEncodeError:
+                pax_headers[hname] = info[name]
+                continue
+
+            if len(info[name]) > length:
+                pax_headers[hname] = info[name]
+
+        # Test number fields for values that exceed the field limit or values
+        # that like to be stored as float.
+        for name, digits in (("uid", 8), ("gid", 8), ("size", 12), ("mtime", 12)):
+            if name in pax_headers:
+                # The pax header has priority. Avoid overflow.
+                info[name] = 0
+                continue
+
+            val = info[name]
+            if not 0 <= val < 8 ** (digits - 1) or isinstance(val, float):
+                pax_headers[name] = str(val)
+                info[name] = 0
+
+        # Create a pax extended header if necessary.
+        if pax_headers:
+            buf = self._create_pax_generic_header(pax_headers, XHDTYPE, encoding)
+        else:
+            buf = b""
+
+        return buf + self._create_header(info, USTAR_FORMAT, "ascii", "replace")
+
+    @classmethod
+    def create_pax_global_header(cls, pax_headers):
+        """Return the object as a pax global header block sequence.
+        """
+        return cls._create_pax_generic_header(pax_headers, XGLTYPE, "utf8")
+
+    def _posix_split_name(self, name):
+        """Split a name longer than 100 chars into a prefix
+           and a name part.
+        """
+        prefix = name[:LENGTH_PREFIX + 1]
+        while prefix and prefix[-1] != "/":
+            prefix = prefix[:-1]
+
+        name = name[len(prefix):]
+        prefix = prefix[:-1]
+
+        if not prefix or len(name) > LENGTH_NAME:
+            raise ValueError("name is too long")
+        return prefix, name
+
+    @staticmethod
+    def _create_header(info, format, encoding, errors):
+        """Return a header block. info is a dictionary with file
+           information, format must be one of the *_FORMAT constants.
+        """
+        parts = [
+            stn(info.get("name", ""), 100, encoding, errors),
+            itn(info.get("mode", 0) & 0o7777, 8, format),
+            itn(info.get("uid", 0), 8, format),
+            itn(info.get("gid", 0), 8, format),
+            itn(info.get("size", 0), 12, format),
+            itn(info.get("mtime", 0), 12, format),
+            b"        ", # checksum field
+            info.get("type", REGTYPE),
+            stn(info.get("linkname", ""), 100, encoding, errors),
+            info.get("magic", POSIX_MAGIC),
+            stn(info.get("uname", ""), 32, encoding, errors),
+            stn(info.get("gname", ""), 32, encoding, errors),
+            itn(info.get("devmajor", 0), 8, format),
+            itn(info.get("devminor", 0), 8, format),
+            stn(info.get("prefix", ""), 155, encoding, errors)
+        ]
+
+        buf = struct.pack("%ds" % BLOCKSIZE, b"".join(parts))
+        chksum = calc_chksums(buf[-BLOCKSIZE:])[0]
+        buf = buf[:-364] + ("%06o\0" % chksum).encode("ascii") + buf[-357:]
+        return buf
+
+    @staticmethod
+    def _create_payload(payload):
+        """Return the string payload filled with zero bytes
+           up to the next 512 byte border.
+        """
+        blocks, remainder = divmod(len(payload), BLOCKSIZE)
+        if remainder > 0:
+            payload += (BLOCKSIZE - remainder) * NUL
+        return payload
+
+    @classmethod
+    def _create_gnu_long_header(cls, name, type, encoding, errors):
+        """Return a GNUTYPE_LONGNAME or GNUTYPE_LONGLINK sequence
+           for name.
+        """
+        name = name.encode(encoding, errors) + NUL
+
+        info = {}
+        info["name"] = "././@LongLink"
+        info["type"] = type
+        info["size"] = len(name)
+        info["magic"] = GNU_MAGIC
+
+        # create extended header + name blocks.
+        return cls._create_header(info, USTAR_FORMAT, encoding, errors) + \
+                cls._create_payload(name)
+
+    @classmethod
+    def _create_pax_generic_header(cls, pax_headers, type, encoding):
+        """Return a POSIX.1-2008 extended or global header sequence
+           that contains a list of keyword, value pairs. The values
+           must be strings.
+        """
+        # Check if one of the fields contains surrogate characters and thereby
+        # forces hdrcharset=BINARY, see _proc_pax() for more information.
+        binary = False
+        for keyword, value in pax_headers.items():
+            try:
+                value.encode("utf8", "strict")
+            except UnicodeEncodeError:
+                binary = True
+                break
+
+        records = b""
+        if binary:
+            # Put the hdrcharset field at the beginning of the header.
+            records += b"21 hdrcharset=BINARY\n"
+
+        for keyword, value in pax_headers.items():
+            keyword = keyword.encode("utf8")
+            if binary:
+                # Try to restore the original byte representation of `value'.
+                # Needless to say, that the encoding must match the string.
+                value = value.encode(encoding, "surrogateescape")
+            else:
+                value = value.encode("utf8")
+
+            l = len(keyword) + len(value) + 3   # ' ' + '=' + '\n'
+            n = p = 0
+            while True:
+                n = l + len(str(p))
+                if n == p:
+                    break
+                p = n
+            records += bytes(str(p), "ascii") + b" " + keyword + b"=" + value + b"\n"
+
+        # We use a hardcoded "././@PaxHeader" name like star does
+        # instead of the one that POSIX recommends.
+        info = {}
+        info["name"] = "././@PaxHeader"
+        info["type"] = type
+        info["size"] = len(records)
+        info["magic"] = POSIX_MAGIC
+
+        # Create pax header + record blocks.
+        return cls._create_header(info, USTAR_FORMAT, "ascii", "replace") + \
+                cls._create_payload(records)
+
+    @classmethod
+    def frombuf(cls, buf, encoding, errors):
+        """Construct a TarInfo object from a 512 byte bytes object.
+        """
+        if len(buf) == 0:
+            raise EmptyHeaderError("empty header")
+        if len(buf) != BLOCKSIZE:
+            raise TruncatedHeaderError("truncated header")
+        if buf.count(NUL) == BLOCKSIZE:
+            raise EOFHeaderError("end of file header")
+
+        chksum = nti(buf[148:156])
+        if chksum not in calc_chksums(buf):
+            raise InvalidHeaderError("bad checksum")
+
+        obj = cls()
+        obj.name = nts(buf[0:100], encoding, errors)
+        obj.mode = nti(buf[100:108])
+        obj.uid = nti(buf[108:116])
+        obj.gid = nti(buf[116:124])
+        obj.size = nti(buf[124:136])
+        obj.mtime = nti(buf[136:148])
+        obj.chksum = chksum
+        obj.type = buf[156:157]
+        obj.linkname = nts(buf[157:257], encoding, errors)
+        obj.uname = nts(buf[265:297], encoding, errors)
+        obj.gname = nts(buf[297:329], encoding, errors)
+        obj.devmajor = nti(buf[329:337])
+        obj.devminor = nti(buf[337:345])
+        prefix = nts(buf[345:500], encoding, errors)
+
+        # Old V7 tar format represents a directory as a regular
+        # file with a trailing slash.
+        if obj.type == AREGTYPE and obj.name.endswith("/"):
+            obj.type = DIRTYPE
+
+        # The old GNU sparse format occupies some of the unused
+        # space in the buffer for up to 4 sparse structures.
+        # Save the them for later processing in _proc_sparse().
+        if obj.type == GNUTYPE_SPARSE:
+            pos = 386
+            structs = []
+            for i in range(4):
+                try:
+                    offset = nti(buf[pos:pos + 12])
+                    numbytes = nti(buf[pos + 12:pos + 24])
+                except ValueError:
+                    break
+                structs.append((offset, numbytes))
+                pos += 24
+            isextended = bool(buf[482])
+            origsize = nti(buf[483:495])
+            obj._sparse_structs = (structs, isextended, origsize)
+
+        # Remove redundant slashes from directories.
+        if obj.isdir():
+            obj.name = obj.name.rstrip("/")
+
+        # Reconstruct a ustar longname.
+        if prefix and obj.type not in GNU_TYPES:
+            obj.name = prefix + "/" + obj.name
+        return obj
+
+    @classmethod
+    def fromtarfile(cls, tarfile):
+        """Return the next TarInfo object from TarFile object
+           tarfile.
+        """
+        buf = tarfile.fileobj.read(BLOCKSIZE)
+        obj = cls.frombuf(buf, tarfile.encoding, tarfile.errors)
+        obj.offset = tarfile.fileobj.tell() - BLOCKSIZE
+        return obj._proc_member(tarfile)
+
+    #--------------------------------------------------------------------------
+    # The following are methods that are called depending on the type of a
+    # member. The entry point is _proc_member() which can be overridden in a
+    # subclass to add custom _proc_*() methods. A _proc_*() method MUST
+    # implement the following
+    # operations:
+    # 1. Set self.offset_data to the position where the data blocks begin,
+    #    if there is data that follows.
+    # 2. Set tarfile.offset to the position where the next member's header will
+    #    begin.
+    # 3. Return self or another valid TarInfo object.
+    def _proc_member(self, tarfile):
+        """Choose the right processing method depending on
+           the type and call it.
+        """
+        if self.type in (GNUTYPE_LONGNAME, GNUTYPE_LONGLINK):
+            return self._proc_gnulong(tarfile)
+        elif self.type == GNUTYPE_SPARSE:
+            return self._proc_sparse(tarfile)
+        elif self.type in (XHDTYPE, XGLTYPE, SOLARIS_XHDTYPE):
+            return self._proc_pax(tarfile)
+        else:
+            return self._proc_builtin(tarfile)
+
+    def _proc_builtin(self, tarfile):
+        """Process a builtin type or an unknown type which
+           will be treated as a regular file.
+        """
+        self.offset_data = tarfile.fileobj.tell()
+        offset = self.offset_data
+        if self.isreg() or self.type not in SUPPORTED_TYPES:
+            # Skip the following data blocks.
+            offset += self._block(self.size)
+        tarfile.offset = offset
+
+        # Patch the TarInfo object with saved global
+        # header information.
+        self._apply_pax_info(tarfile.pax_headers, tarfile.encoding, tarfile.errors)
+
+        return self
+
+    def _proc_gnulong(self, tarfile):
+        """Process the blocks that hold a GNU longname
+           or longlink member.
+        """
+        buf = tarfile.fileobj.read(self._block(self.size))
+
+        # Fetch the next header and process it.
+        try:
+            next = self.fromtarfile(tarfile)
+        except HeaderError:
+            raise SubsequentHeaderError("missing or bad subsequent header")
+
+        # Patch the TarInfo object from the next header with
+        # the longname information.
+        next.offset = self.offset
+        if self.type == GNUTYPE_LONGNAME:
+            next.name = nts(buf, tarfile.encoding, tarfile.errors)
+        elif self.type == GNUTYPE_LONGLINK:
+            next.linkname = nts(buf, tarfile.encoding, tarfile.errors)
+
+        return next
+
+    def _proc_sparse(self, tarfile):
+        """Process a GNU sparse header plus extra headers.
+        """
+        # We already collected some sparse structures in frombuf().
+        structs, isextended, origsize = self._sparse_structs
+        del self._sparse_structs
+
+        # Collect sparse structures from extended header blocks.
+        while isextended:
+            buf = tarfile.fileobj.read(BLOCKSIZE)
+            pos = 0
+            for i in range(21):
+                try:
+                    offset = nti(buf[pos:pos + 12])
+                    numbytes = nti(buf[pos + 12:pos + 24])
+                except ValueError:
+                    break
+                if offset and numbytes:
+                    structs.append((offset, numbytes))
+                pos += 24
+            isextended = bool(buf[504])
+        self.sparse = structs
+
+        self.offset_data = tarfile.fileobj.tell()
+        tarfile.offset = self.offset_data + self._block(self.size)
+        self.size = origsize
+        return self
+
+    def _proc_pax(self, tarfile):
+        """Process an extended or global header as described in
+           POSIX.1-2008.
+        """
+        # Read the header information.
+        buf = tarfile.fileobj.read(self._block(self.size))
+
+        # A pax header stores supplemental information for either
+        # the following file (extended) or all following files
+        # (global).
+        if self.type == XGLTYPE:
+            pax_headers = tarfile.pax_headers
+        else:
+            pax_headers = tarfile.pax_headers.copy()
+
+        # Check if the pax header contains a hdrcharset field. This tells us
+        # the encoding of the path, linkpath, uname and gname fields. Normally,
+        # these fields are UTF-8 encoded but since POSIX.1-2008 tar
+        # implementations are allowed to store them as raw binary strings if
+        # the translation to UTF-8 fails.
+        match = re.search(br"\d+ hdrcharset=([^\n]+)\n", buf)
+        if match is not None:
+            pax_headers["hdrcharset"] = match.group(1).decode("utf8")
+
+        # For the time being, we don't care about anything other than "BINARY".
+        # The only other value that is currently allowed by the standard is
+        # "ISO-IR 10646 2000 UTF-8" in other words UTF-8.
+        hdrcharset = pax_headers.get("hdrcharset")
+        if hdrcharset == "BINARY":
+            encoding = tarfile.encoding
+        else:
+            encoding = "utf8"
+
+        # Parse pax header information. A record looks like that:
+        # "%d %s=%s\n" % (length, keyword, value). length is the size
+        # of the complete record including the length field itself and
+        # the newline. keyword and value are both UTF-8 encoded strings.
+        regex = re.compile(br"(\d+) ([^=]+)=")
+        pos = 0
+        while True:
+            match = regex.match(buf, pos)
+            if not match:
+                break
+
+            length, keyword = match.groups()
+            length = int(length)
+            value = buf[match.end(2) + 1:match.start(1) + length - 1]
+
+            # Normally, we could just use "utf8" as the encoding and "strict"
+            # as the error handler, but we better not take the risk. For
+            # example, GNU tar <= 1.23 is known to store filenames it cannot
+            # translate to UTF-8 as raw strings (unfortunately without a
+            # hdrcharset=BINARY header).
+            # We first try the strict standard encoding, and if that fails we
+            # fall back on the user's encoding and error handler.
+            keyword = self._decode_pax_field(keyword, "utf8", "utf8",
+                    tarfile.errors)
+            if keyword in PAX_NAME_FIELDS:
+                value = self._decode_pax_field(value, encoding, tarfile.encoding,
+                        tarfile.errors)
+            else:
+                value = self._decode_pax_field(value, "utf8", "utf8",
+                        tarfile.errors)
+
+            pax_headers[keyword] = value
+            pos += length
+
+        # Fetch the next header.
+        try:
+            next = self.fromtarfile(tarfile)
+        except HeaderError:
+            raise SubsequentHeaderError("missing or bad subsequent header")
+
+        # Process GNU sparse information.
+        if "GNU.sparse.map" in pax_headers:
+            # GNU extended sparse format version 0.1.
+            self._proc_gnusparse_01(next, pax_headers)
+
+        elif "GNU.sparse.size" in pax_headers:
+            # GNU extended sparse format version 0.0.
+            self._proc_gnusparse_00(next, pax_headers, buf)
+
+        elif pax_headers.get("GNU.sparse.major") == "1" and pax_headers.get("GNU.sparse.minor") == "0":
+            # GNU extended sparse format version 1.0.
+            self._proc_gnusparse_10(next, pax_headers, tarfile)
+
+        if self.type in (XHDTYPE, SOLARIS_XHDTYPE):
+            # Patch the TarInfo object with the extended header info.
+            next._apply_pax_info(pax_headers, tarfile.encoding, tarfile.errors)
+            next.offset = self.offset
+
+            if "size" in pax_headers:
+                # If the extended header replaces the size field,
+                # we need to recalculate the offset where the next
+                # header starts.
+                offset = next.offset_data
+                if next.isreg() or next.type not in SUPPORTED_TYPES:
+                    offset += next._block(next.size)
+                tarfile.offset = offset
+
+        return next
+
+    def _proc_gnusparse_00(self, next, pax_headers, buf):
+        """Process a GNU tar extended sparse header, version 0.0.
+        """
+        offsets = []
+        for match in re.finditer(br"\d+ GNU.sparse.offset=(\d+)\n", buf):
+            offsets.append(int(match.group(1)))
+        numbytes = []
+        for match in re.finditer(br"\d+ GNU.sparse.numbytes=(\d+)\n", buf):
+            numbytes.append(int(match.group(1)))
+        next.sparse = list(zip(offsets, numbytes))
+
+    def _proc_gnusparse_01(self, next, pax_headers):
+        """Process a GNU tar extended sparse header, version 0.1.
+        """
+        sparse = [int(x) for x in pax_headers["GNU.sparse.map"].split(",")]
+        next.sparse = list(zip(sparse[::2], sparse[1::2]))
+
+    def _proc_gnusparse_10(self, next, pax_headers, tarfile):
+        """Process a GNU tar extended sparse header, version 1.0.
+        """
+        fields = None
+        sparse = []
+        buf = tarfile.fileobj.read(BLOCKSIZE)
+        fields, buf = buf.split(b"\n", 1)
+        fields = int(fields)
+        while len(sparse) < fields * 2:
+            if b"\n" not in buf:
+                buf += tarfile.fileobj.read(BLOCKSIZE)
+            number, buf = buf.split(b"\n", 1)
+            sparse.append(int(number))
+        next.offset_data = tarfile.fileobj.tell()
+        next.sparse = list(zip(sparse[::2], sparse[1::2]))
+
+    def _apply_pax_info(self, pax_headers, encoding, errors):
+        """Replace fields with supplemental information from a previous
+           pax extended or global header.
+        """
+        for keyword, value in pax_headers.items():
+            if keyword == "GNU.sparse.name":
+                setattr(self, "path", value)
+            elif keyword == "GNU.sparse.size":
+                setattr(self, "size", int(value))
+            elif keyword == "GNU.sparse.realsize":
+                setattr(self, "size", int(value))
+            elif keyword in PAX_FIELDS:
+                if keyword in PAX_NUMBER_FIELDS:
+                    try:
+                        value = PAX_NUMBER_FIELDS[keyword](value)
+                    except ValueError:
+                        value = 0
+                if keyword == "path":
+                    value = value.rstrip("/")
+                setattr(self, keyword, value)
+
+        self.pax_headers = pax_headers.copy()
+
+    def _decode_pax_field(self, value, encoding, fallback_encoding, fallback_errors):
+        """Decode a single field from a pax record.
+        """
+        try:
+            return value.decode(encoding, "strict")
+        except UnicodeDecodeError:
+            return value.decode(fallback_encoding, fallback_errors)
+
+    def _block(self, count):
+        """Round up a byte count by BLOCKSIZE and return it,
+           e.g. _block(834) => 1024.
+        """
+        blocks, remainder = divmod(count, BLOCKSIZE)
+        if remainder:
+            blocks += 1
+        return blocks * BLOCKSIZE
+
+    def isreg(self):
+        return self.type in REGULAR_TYPES
+    def isfile(self):
+        return self.isreg()
+    def isdir(self):
+        return self.type == DIRTYPE
+    def issym(self):
+        return self.type == SYMTYPE
+    def islnk(self):
+        return self.type == LNKTYPE
+    def ischr(self):
+        return self.type == CHRTYPE
+    def isblk(self):
+        return self.type == BLKTYPE
+    def isfifo(self):
+        return self.type == FIFOTYPE
+    def issparse(self):
+        return self.sparse is not None
+    def isdev(self):
+        return self.type in (CHRTYPE, BLKTYPE, FIFOTYPE)
+# class TarInfo
+
+class TarFile(object):
+    """The TarFile Class provides an interface to tar archives.
+    """
+
+    debug = 0                   # May be set from 0 (no msgs) to 3 (all msgs)
+
+    dereference = False         # If true, add content of linked file to the
+                                # tar file, else the link.
+
+    ignore_zeros = False        # If true, skips empty or invalid blocks and
+                                # continues processing.
+
+    errorlevel = 1              # If 0, fatal errors only appear in debug
+                                # messages (if debug >= 0). If > 0, errors
+                                # are passed to the caller as exceptions.
+
+    format = DEFAULT_FORMAT     # The format to use when creating an archive.
+
+    encoding = ENCODING         # Encoding for 8-bit character strings.
+
+    errors = None               # Error handler for unicode conversion.
+
+    tarinfo = TarInfo           # The default TarInfo class to use.
+
+    fileobject = ExFileObject   # The default ExFileObject class to use.
+
+    def __init__(self, name=None, mode="r", fileobj=None, format=None,
+            tarinfo=None, dereference=None, ignore_zeros=None, encoding=None,
+            errors="surrogateescape", pax_headers=None, debug=None, errorlevel=None):
+        """Open an (uncompressed) tar archive `name'. `mode' is either 'r' to
+           read from an existing archive, 'a' to append data to an existing
+           file or 'w' to create a new file overwriting an existing one. `mode'
+           defaults to 'r'.
+           If `fileobj' is given, it is used for reading or writing data. If it
+           can be determined, `mode' is overridden by `fileobj's mode.
+           `fileobj' is not closed, when TarFile is closed.
+        """
+        if len(mode) > 1 or mode not in "raw":
+            raise ValueError("mode must be 'r', 'a' or 'w'")
+        self.mode = mode
+        self._mode = {"r": "rb", "a": "r+b", "w": "wb"}[mode]
+
+        if not fileobj:
+            if self.mode == "a" and not os.path.exists(name):
+                # Create nonexistent files in append mode.
+                self.mode = "w"
+                self._mode = "wb"
+            fileobj = bltn_open(name, self._mode)
+            self._extfileobj = False
+        else:
+            if name is None and hasattr(fileobj, "name"):
+                name = fileobj.name
+            if hasattr(fileobj, "mode"):
+                self._mode = fileobj.mode
+            self._extfileobj = True
+        self.name = os.path.abspath(name) if name else None
+        self.fileobj = fileobj
+
+        # Init attributes.
+        if format is not None:
+            self.format = format
+        if tarinfo is not None:
+            self.tarinfo = tarinfo
+        if dereference is not None:
+            self.dereference = dereference
+        if ignore_zeros is not None:
+            self.ignore_zeros = ignore_zeros
+        if encoding is not None:
+            self.encoding = encoding
+        self.errors = errors
+
+        if pax_headers is not None and self.format == PAX_FORMAT:
+            self.pax_headers = pax_headers
+        else:
+            self.pax_headers = {}
+
+        if debug is not None:
+            self.debug = debug
+        if errorlevel is not None:
+            self.errorlevel = errorlevel
+
+        # Init datastructures.
+        self.closed = False
+        self.members = []       # list of members as TarInfo objects
+        self._loaded = False    # flag if all members have been read
+        self.offset = self.fileobj.tell()
+                                # current position in the archive file
+        self.inodes = {}        # dictionary caching the inodes of
+                                # archive members already added
+
+        try:
+            if self.mode == "r":
+                self.firstmember = None
+                self.firstmember = self.next()
+
+            if self.mode == "a":
+                # Move to the end of the archive,
+                # before the first empty block.
+                while True:
+                    self.fileobj.seek(self.offset)
+                    try:
+                        tarinfo = self.tarinfo.fromtarfile(self)
+                        self.members.append(tarinfo)
+                    except EOFHeaderError:
+                        self.fileobj.seek(self.offset)
+                        break
+                    except HeaderError as e:
+                        raise ReadError(str(e))
+
+            if self.mode in "aw":
+                self._loaded = True
+
+                if self.pax_headers:
+                    buf = self.tarinfo.create_pax_global_header(self.pax_headers.copy())
+                    self.fileobj.write(buf)
+                    self.offset += len(buf)
+        except:
+            if not self._extfileobj:
+                self.fileobj.close()
+            self.closed = True
+            raise
+
+    #--------------------------------------------------------------------------
+    # Below are the classmethods which act as alternate constructors to the
+    # TarFile class. The open() method is the only one that is needed for
+    # public use; it is the "super"-constructor and is able to select an
+    # adequate "sub"-constructor for a particular compression using the mapping
+    # from OPEN_METH.
+    #
+    # This concept allows one to subclass TarFile without losing the comfort of
+    # the super-constructor. A sub-constructor is registered and made available
+    # by adding it to the mapping in OPEN_METH.
+
+    @classmethod
+    def open(cls, name=None, mode="r", fileobj=None, bufsize=RECORDSIZE, **kwargs):
+        """Open a tar archive for reading, writing or appending. Return
+           an appropriate TarFile class.
+
+           mode:
+           'r' or 'r:*' open for reading with transparent compression
+           'r:'         open for reading exclusively uncompressed
+           'r:gz'       open for reading with gzip compression
+           'r:bz2'      open for reading with bzip2 compression
+           'a' or 'a:'  open for appending, creating the file if necessary
+           'w' or 'w:'  open for writing without compression
+           'w:gz'       open for writing with gzip compression
+           'w:bz2'      open for writing with bzip2 compression
+
+           'r|*'        open a stream of tar blocks with transparent compression
+           'r|'         open an uncompressed stream of tar blocks for reading
+           'r|gz'       open a gzip compressed stream of tar blocks
+           'r|bz2'      open a bzip2 compressed stream of tar blocks
+           'w|'         open an uncompressed stream for writing
+           'w|gz'       open a gzip compressed stream for writing
+           'w|bz2'      open a bzip2 compressed stream for writing
+        """
+
+        if not name and not fileobj:
+            raise ValueError("nothing to open")
+
+        if mode in ("r", "r:*"):
+            # Find out which *open() is appropriate for opening the file.
+            for comptype in cls.OPEN_METH:
+                func = getattr(cls, cls.OPEN_METH[comptype])
+                if fileobj is not None:
+                    saved_pos = fileobj.tell()
+                try:
+                    return func(name, "r", fileobj, **kwargs)
+                except (ReadError, CompressionError) as e:
+                    if fileobj is not None:
+                        fileobj.seek(saved_pos)
+                    continue
+            raise ReadError("file could not be opened successfully")
+
+        elif ":" in mode:
+            filemode, comptype = mode.split(":", 1)
+            filemode = filemode or "r"
+            comptype = comptype or "tar"
+
+            # Select the *open() function according to
+            # given compression.
+            if comptype in cls.OPEN_METH:
+                func = getattr(cls, cls.OPEN_METH[comptype])
+            else:
+                raise CompressionError("unknown compression type %r" % comptype)
+            return func(name, filemode, fileobj, **kwargs)
+
+        elif "|" in mode:
+            filemode, comptype = mode.split("|", 1)
+            filemode = filemode or "r"
+            comptype = comptype or "tar"
+
+            if filemode not in "rw":
+                raise ValueError("mode must be 'r' or 'w'")
+
+            stream = _Stream(name, filemode, comptype, fileobj, bufsize)
+            try:
+                t = cls(name, filemode, stream, **kwargs)
+            except:
+                stream.close()
+                raise
+            t._extfileobj = False
+            return t
+
+        elif mode in "aw":
+            return cls.taropen(name, mode, fileobj, **kwargs)
+
+        raise ValueError("undiscernible mode")
+
+    @classmethod
+    def taropen(cls, name, mode="r", fileobj=None, **kwargs):
+        """Open uncompressed tar archive name for reading or writing.
+        """
+        if len(mode) > 1 or mode not in "raw":
+            raise ValueError("mode must be 'r', 'a' or 'w'")
+        return cls(name, mode, fileobj, **kwargs)
+
+    @classmethod
+    def gzopen(cls, name, mode="r", fileobj=None, compresslevel=9, **kwargs):
+        """Open gzip compressed tar archive name for reading or writing.
+           Appending is not allowed.
+        """
+        if len(mode) > 1 or mode not in "rw":
+            raise ValueError("mode must be 'r' or 'w'")
+
+        try:
+            import gzip
+            gzip.GzipFile
+        except (ImportError, AttributeError):
+            raise CompressionError("gzip module is not available")
+
+        extfileobj = fileobj is not None
+        try:
+            fileobj = gzip.GzipFile(name, mode + "b", compresslevel, fileobj)
+            t = cls.taropen(name, mode, fileobj, **kwargs)
+        except IOError:
+            if not extfileobj and fileobj is not None:
+                fileobj.close()
+            if fileobj is None:
+                raise
+            raise ReadError("not a gzip file")
+        except:
+            if not extfileobj and fileobj is not None:
+                fileobj.close()
+            raise
+        t._extfileobj = extfileobj
+        return t
+
+    @classmethod
+    def bz2open(cls, name, mode="r", fileobj=None, compresslevel=9, **kwargs):
+        """Open bzip2 compressed tar archive name for reading or writing.
+           Appending is not allowed.
+        """
+        if len(mode) > 1 or mode not in "rw":
+            raise ValueError("mode must be 'r' or 'w'.")
+
+        try:
+            import bz2
+        except ImportError:
+            raise CompressionError("bz2 module is not available")
+
+        if fileobj is not None:
+            fileobj = _BZ2Proxy(fileobj, mode)
+        else:
+            fileobj = bz2.BZ2File(name, mode, compresslevel=compresslevel)
+
+        try:
+            t = cls.taropen(name, mode, fileobj, **kwargs)
+        except (IOError, EOFError):
+            fileobj.close()
+            raise ReadError("not a bzip2 file")
+        t._extfileobj = False
+        return t
+
+    # All *open() methods are registered here.
+    OPEN_METH = {
+        "tar": "taropen",   # uncompressed tar
+        "gz":  "gzopen",    # gzip compressed tar
+        "bz2": "bz2open"    # bzip2 compressed tar
+    }
+
+    #--------------------------------------------------------------------------
+    # The public methods which TarFile provides:
+
+    def close(self):
+        """Close the TarFile. In write-mode, two finishing zero blocks are
+           appended to the archive.
+        """
+        if self.closed:
+            return
+
+        if self.mode in "aw":
+            self.fileobj.write(NUL * (BLOCKSIZE * 2))
+            self.offset += (BLOCKSIZE * 2)
+            # fill up the end with zero-blocks
+            # (like option -b20 for tar does)
+            blocks, remainder = divmod(self.offset, RECORDSIZE)
+            if remainder > 0:
+                self.fileobj.write(NUL * (RECORDSIZE - remainder))
+
+        if not self._extfileobj:
+            self.fileobj.close()
+        self.closed = True
+
+    def getmember(self, name):
+        """Return a TarInfo object for member `name'. If `name' can not be
+           found in the archive, KeyError is raised. If a member occurs more
+           than once in the archive, its last occurrence is assumed to be the
+           most up-to-date version.
+        """
+        tarinfo = self._getmember(name)
+        if tarinfo is None:
+            raise KeyError("filename %r not found" % name)
+        return tarinfo
+
+    def getmembers(self):
+        """Return the members of the archive as a list of TarInfo objects. The
+           list has the same order as the members in the archive.
+        """
+        self._check()
+        if not self._loaded:    # if we want to obtain a list of
+            self._load()        # all members, we first have to
+                                # scan the whole archive.
+        return self.members
+
+    def getnames(self):
+        """Return the members of the archive as a list of their names. It has
+           the same order as the list returned by getmembers().
+        """
+        return [tarinfo.name for tarinfo in self.getmembers()]
+
+    def gettarinfo(self, name=None, arcname=None, fileobj=None):
+        """Create a TarInfo object for either the file `name' or the file
+           object `fileobj' (using os.fstat on its file descriptor). You can
+           modify some of the TarInfo's attributes before you add it using
+           addfile(). If given, `arcname' specifies an alternative name for the
+           file in the archive.
+        """
+        self._check("aw")
+
+        # When fileobj is given, replace name by
+        # fileobj's real name.
+        if fileobj is not None:
+            name = fileobj.name
+
+        # Building the name of the member in the archive.
+        # Backward slashes are converted to forward slashes,
+        # Absolute paths are turned to relative paths.
+        if arcname is None:
+            arcname = name
+        drv, arcname = os.path.splitdrive(arcname)
+        arcname = arcname.replace(os.sep, "/")
+        arcname = arcname.lstrip("/")
+
+        # Now, fill the TarInfo object with
+        # information specific for the file.
+        tarinfo = self.tarinfo()
+        tarinfo.tarfile = self
+
+        # Use os.stat or os.lstat, depending on platform
+        # and if symlinks shall be resolved.
+        if fileobj is None:
+            if hasattr(os, "lstat") and not self.dereference:
+                statres = os.lstat(name)
+            else:
+                statres = os.stat(name)
+        else:
+            statres = os.fstat(fileobj.fileno())
+        linkname = ""
+
+        stmd = statres.st_mode
+        if stat.S_ISREG(stmd):
+            inode = (statres.st_ino, statres.st_dev)
+            if not self.dereference and statres.st_nlink > 1 and \
+                    inode in self.inodes and arcname != self.inodes[inode]:
+                # Is it a hardlink to an already
+                # archived file?
+                type = LNKTYPE
+                linkname = self.inodes[inode]
+            else:
+                # The inode is added only if its valid.
+                # For win32 it is always 0.
+                type = REGTYPE
+                if inode[0]:
+                    self.inodes[inode] = arcname
+        elif stat.S_ISDIR(stmd):
+            type = DIRTYPE
+        elif stat.S_ISFIFO(stmd):
+            type = FIFOTYPE
+        elif stat.S_ISLNK(stmd):
+            type = SYMTYPE
+            linkname = os.readlink(name)
+        elif stat.S_ISCHR(stmd):
+            type = CHRTYPE
+        elif stat.S_ISBLK(stmd):
+            type = BLKTYPE
+        else:
+            return None
+
+        # Fill the TarInfo object with all
+        # information we can get.
+        tarinfo.name = arcname
+        tarinfo.mode = stmd
+        tarinfo.uid = statres.st_uid
+        tarinfo.gid = statres.st_gid
+        if type == REGTYPE:
+            tarinfo.size = statres.st_size
+        else:
+            tarinfo.size = 0
+        tarinfo.mtime = statres.st_mtime
+        tarinfo.type = type
+        tarinfo.linkname = linkname
+        if pwd:
+            try:
+                tarinfo.uname = pwd.getpwuid(tarinfo.uid)[0]
+            except KeyError:
+                pass
+        if grp:
+            try:
+                tarinfo.gname = grp.getgrgid(tarinfo.gid)[0]
+            except KeyError:
+                pass
+
+        if type in (CHRTYPE, BLKTYPE):
+            if hasattr(os, "major") and hasattr(os, "minor"):
+                tarinfo.devmajor = os.major(statres.st_rdev)
+                tarinfo.devminor = os.minor(statres.st_rdev)
+        return tarinfo
+
+    def list(self, verbose=True):
+        """Print a table of contents to sys.stdout. If `verbose' is False, only
+           the names of the members are printed. If it is True, an `ls -l'-like
+           output is produced.
+        """
+        self._check()
+
+        for tarinfo in self:
+            if verbose:
+                print(filemode(tarinfo.mode), end=' ')
+                print("%s/%s" % (tarinfo.uname or tarinfo.uid,
+                                 tarinfo.gname or tarinfo.gid), end=' ')
+                if tarinfo.ischr() or tarinfo.isblk():
+                    print("%10s" % ("%d,%d" \
+                                    % (tarinfo.devmajor, tarinfo.devminor)), end=' ')
+                else:
+                    print("%10d" % tarinfo.size, end=' ')
+                print("%d-%02d-%02d %02d:%02d:%02d" \
+                      % time.localtime(tarinfo.mtime)[:6], end=' ')
+
+            print(tarinfo.name + ("/" if tarinfo.isdir() else ""), end=' ')
+
+            if verbose:
+                if tarinfo.issym():
+                    print("->", tarinfo.linkname, end=' ')
+                if tarinfo.islnk():
+                    print("link to", tarinfo.linkname, end=' ')
+            print()
+
+    def add(self, name, arcname=None, recursive=True, exclude=None, filter=None):
+        """Add the file `name' to the archive. `name' may be any type of file
+           (directory, fifo, symbolic link, etc.). If given, `arcname'
+           specifies an alternative name for the file in the archive.
+           Directories are added recursively by default. This can be avoided by
+           setting `recursive' to False. `exclude' is a function that should
+           return True for each filename to be excluded. `filter' is a function
+           that expects a TarInfo object argument and returns the changed
+           TarInfo object, if it returns None the TarInfo object will be
+           excluded from the archive.
+        """
+        self._check("aw")
+
+        if arcname is None:
+            arcname = name
+
+        # Exclude pathnames.
+        if exclude is not None:
+            import warnings
+            warnings.warn("use the filter argument instead",
+                    DeprecationWarning, 2)
+            if exclude(name):
+                self._dbg(2, "tarfile: Excluded %r" % name)
+                return
+
+        # Skip if somebody tries to archive the archive...
+        if self.name is not None and os.path.abspath(name) == self.name:
+            self._dbg(2, "tarfile: Skipped %r" % name)
+            return
+
+        self._dbg(1, name)
+
+        # Create a TarInfo object from the file.
+        tarinfo = self.gettarinfo(name, arcname)
+
+        if tarinfo is None:
+            self._dbg(1, "tarfile: Unsupported type %r" % name)
+            return
+
+        # Change or exclude the TarInfo object.
+        if filter is not None:
+            tarinfo = filter(tarinfo)
+            if tarinfo is None:
+                self._dbg(2, "tarfile: Excluded %r" % name)
+                return
+
+        # Append the tar header and data to the archive.
+        if tarinfo.isreg():
+            f = bltn_open(name, "rb")
+            self.addfile(tarinfo, f)
+            f.close()
+
+        elif tarinfo.isdir():
+            self.addfile(tarinfo)
+            if recursive:
+                for f in os.listdir(name):
+                    self.add(os.path.join(name, f), os.path.join(arcname, f),
+                            recursive, exclude, filter=filter)
+
+        else:
+            self.addfile(tarinfo)
+
+    def addfile(self, tarinfo, fileobj=None):
+        """Add the TarInfo object `tarinfo' to the archive. If `fileobj' is
+           given, tarinfo.size bytes are read from it and added to the archive.
+           You can create TarInfo objects using gettarinfo().
+           On Windows platforms, `fileobj' should always be opened with mode
+           'rb' to avoid irritation about the file size.
+        """
+        self._check("aw")
+
+        tarinfo = copy.copy(tarinfo)
+
+        buf = tarinfo.tobuf(self.format, self.encoding, self.errors)
+        self.fileobj.write(buf)
+        self.offset += len(buf)
+
+        # If there's data to follow, append it.
+        if fileobj is not None:
+            copyfileobj(fileobj, self.fileobj, tarinfo.size)
+            blocks, remainder = divmod(tarinfo.size, BLOCKSIZE)
+            if remainder > 0:
+                self.fileobj.write(NUL * (BLOCKSIZE - remainder))
+                blocks += 1
+            self.offset += blocks * BLOCKSIZE
+
+        self.members.append(tarinfo)
+
+    def extractall(self, path=".", members=None):
+        """Extract all members from the archive to the current working
+           directory and set owner, modification time and permissions on
+           directories afterwards. `path' specifies a different directory
+           to extract to. `members' is optional and must be a subset of the
+           list returned by getmembers().
+        """
+        directories = []
+
+        if members is None:
+            members = self
+
+        for tarinfo in members:
+            if tarinfo.isdir():
+                # Extract directories with a safe mode.
+                directories.append(tarinfo)
+                tarinfo = copy.copy(tarinfo)
+                tarinfo.mode = 0o700
+            # Do not set_attrs directories, as we will do that further down
+            self.extract(tarinfo, path, set_attrs=not tarinfo.isdir())
+
+        # Reverse sort directories.
+        directories.sort(key=lambda a: a.name)
+        directories.reverse()
+
+        # Set correct owner, mtime and filemode on directories.
+        for tarinfo in directories:
+            dirpath = os.path.join(path, tarinfo.name)
+            try:
+                self.chown(tarinfo, dirpath)
+                self.utime(tarinfo, dirpath)
+                self.chmod(tarinfo, dirpath)
+            except ExtractError as e:
+                if self.errorlevel > 1:
+                    raise
+                else:
+                    self._dbg(1, "tarfile: %s" % e)
+
+    def extract(self, member, path="", set_attrs=True):
+        """Extract a member from the archive to the current working directory,
+           using its full name. Its file information is extracted as accurately
+           as possible. `member' may be a filename or a TarInfo object. You can
+           specify a different directory using `path'. File attributes (owner,
+           mtime, mode) are set unless `set_attrs' is False.
+        """
+        self._check("r")
+
+        if isinstance(member, str):
+            tarinfo = self.getmember(member)
+        else:
+            tarinfo = member
+
+        # Prepare the link target for makelink().
+        if tarinfo.islnk():
+            tarinfo._link_target = os.path.join(path, tarinfo.linkname)
+
+        try:
+            self._extract_member(tarinfo, os.path.join(path, tarinfo.name),
+                                 set_attrs=set_attrs)
+        except EnvironmentError as e:
+            if self.errorlevel > 0:
+                raise
+            else:
+                if e.filename is None:
+                    self._dbg(1, "tarfile: %s" % e.strerror)
+                else:
+                    self._dbg(1, "tarfile: %s %r" % (e.strerror, e.filename))
+        except ExtractError as e:
+            if self.errorlevel > 1:
+                raise
+            else:
+                self._dbg(1, "tarfile: %s" % e)
+
+    def extractfile(self, member):
+        """Extract a member from the archive as a file object. `member' may be
+           a filename or a TarInfo object. If `member' is a regular file, a
+           file-like object is returned. If `member' is a link, a file-like
+           object is constructed from the link's target. If `member' is none of
+           the above, None is returned.
+           The file-like object is read-only and provides the following
+           methods: read(), readline(), readlines(), seek() and tell()
+        """
+        self._check("r")
+
+        if isinstance(member, str):
+            tarinfo = self.getmember(member)
+        else:
+            tarinfo = member
+
+        if tarinfo.isreg():
+            return self.fileobject(self, tarinfo)
+
+        elif tarinfo.type not in SUPPORTED_TYPES:
+            # If a member's type is unknown, it is treated as a
+            # regular file.
+            return self.fileobject(self, tarinfo)
+
+        elif tarinfo.islnk() or tarinfo.issym():
+            if isinstance(self.fileobj, _Stream):
+                # A small but ugly workaround for the case that someone tries
+                # to extract a (sym)link as a file-object from a non-seekable
+                # stream of tar blocks.
+                raise StreamError("cannot extract (sym)link as file object")
+            else:
+                # A (sym)link's file object is its target's file object.
+                return self.extractfile(self._find_link_target(tarinfo))
+        else:
+            # If there's no data associated with the member (directory, chrdev,
+            # blkdev, etc.), return None instead of a file object.
+            return None
+
+    def _extract_member(self, tarinfo, targetpath, set_attrs=True):
+        """Extract the TarInfo object tarinfo to a physical
+           file called targetpath.
+        """
+        # Fetch the TarInfo object for the given name
+        # and build the destination pathname, replacing
+        # forward slashes to platform specific separators.
+        targetpath = targetpath.rstrip("/")
+        targetpath = targetpath.replace("/", os.sep)
+
+        # Create all upper directories.
+        upperdirs = os.path.dirname(targetpath)
+        if upperdirs and not os.path.exists(upperdirs):
+            # Create directories that are not part of the archive with
+            # default permissions.
+            os.makedirs(upperdirs)
+
+        if tarinfo.islnk() or tarinfo.issym():
+            self._dbg(1, "%s -> %s" % (tarinfo.name, tarinfo.linkname))
+        else:
+            self._dbg(1, tarinfo.name)
+
+        if tarinfo.isreg():
+            self.makefile(tarinfo, targetpath)
+        elif tarinfo.isdir():
+            self.makedir(tarinfo, targetpath)
+        elif tarinfo.isfifo():
+            self.makefifo(tarinfo, targetpath)
+        elif tarinfo.ischr() or tarinfo.isblk():
+            self.makedev(tarinfo, targetpath)
+        elif tarinfo.islnk() or tarinfo.issym():
+            self.makelink(tarinfo, targetpath)
+        elif tarinfo.type not in SUPPORTED_TYPES:
+            self.makeunknown(tarinfo, targetpath)
+        else:
+            self.makefile(tarinfo, targetpath)
+
+        if set_attrs:
+            self.chown(tarinfo, targetpath)
+            if not tarinfo.issym():
+                self.chmod(tarinfo, targetpath)
+                self.utime(tarinfo, targetpath)
+
+    #--------------------------------------------------------------------------
+    # Below are the different file methods. They are called via
+    # _extract_member() when extract() is called. They can be replaced in a
+    # subclass to implement other functionality.
+
+    def makedir(self, tarinfo, targetpath):
+        """Make a directory called targetpath.
+        """
+        try:
+            # Use a safe mode for the directory, the real mode is set
+            # later in _extract_member().
+            os.mkdir(targetpath, 0o700)
+        except EnvironmentError as e:
+            if e.errno != errno.EEXIST:
+                raise
+
+    def makefile(self, tarinfo, targetpath):
+        """Make a file called targetpath.
+        """
+        source = self.fileobj
+        source.seek(tarinfo.offset_data)
+        target = bltn_open(targetpath, "wb")
+        if tarinfo.sparse is not None:
+            for offset, size in tarinfo.sparse:
+                target.seek(offset)
+                copyfileobj(source, target, size)
+        else:
+            copyfileobj(source, target, tarinfo.size)
+        target.seek(tarinfo.size)
+        target.truncate()
+        target.close()
+
+    def makeunknown(self, tarinfo, targetpath):
+        """Make a file from a TarInfo object with an unknown type
+           at targetpath.
+        """
+        self.makefile(tarinfo, targetpath)
+        self._dbg(1, "tarfile: Unknown file type %r, " \
+                     "extracted as regular file." % tarinfo.type)
+
+    def makefifo(self, tarinfo, targetpath):
+        """Make a fifo called targetpath.
+        """
+        if hasattr(os, "mkfifo"):
+            os.mkfifo(targetpath)
+        else:
+            raise ExtractError("fifo not supported by system")
+
+    def makedev(self, tarinfo, targetpath):
+        """Make a character or block device called targetpath.
+        """
+        if not hasattr(os, "mknod") or not hasattr(os, "makedev"):
+            raise ExtractError("special devices not supported by system")
+
+        mode = tarinfo.mode
+        if tarinfo.isblk():
+            mode |= stat.S_IFBLK
+        else:
+            mode |= stat.S_IFCHR
+
+        os.mknod(targetpath, mode,
+                 os.makedev(tarinfo.devmajor, tarinfo.devminor))
+
+    def makelink(self, tarinfo, targetpath):
+        """Make a (symbolic) link called targetpath. If it cannot be created
+          (platform limitation), we try to make a copy of the referenced file
+          instead of a link.
+        """
+        try:
+            # For systems that support symbolic and hard links.
+            if tarinfo.issym():
+                os.symlink(tarinfo.linkname, targetpath)
+            else:
+                # See extract().
+                if os.path.exists(tarinfo._link_target):
+                    os.link(tarinfo._link_target, targetpath)
+                else:
+                    self._extract_member(self._find_link_target(tarinfo),
+                                         targetpath)
+        except symlink_exception:
+            if tarinfo.issym():
+                linkpath = os.path.join(os.path.dirname(tarinfo.name),
+                                        tarinfo.linkname)
+            else:
+                linkpath = tarinfo.linkname
+        else:
+            try:
+                self._extract_member(self._find_link_target(tarinfo),
+                                     targetpath)
+            except KeyError:
+                raise ExtractError("unable to resolve link inside archive")
+
+    def chown(self, tarinfo, targetpath):
+        """Set owner of targetpath according to tarinfo.
+        """
+        if pwd and hasattr(os, "geteuid") and os.geteuid() == 0:
+            # We have to be root to do so.
+            try:
+                g = grp.getgrnam(tarinfo.gname)[2]
+            except KeyError:
+                g = tarinfo.gid
+            try:
+                u = pwd.getpwnam(tarinfo.uname)[2]
+            except KeyError:
+                u = tarinfo.uid
+            try:
+                if tarinfo.issym() and hasattr(os, "lchown"):
+                    os.lchown(targetpath, u, g)
+                else:
+                    if sys.platform != "os2emx":
+                        os.chown(targetpath, u, g)
+            except EnvironmentError as e:
+                raise ExtractError("could not change owner")
+
+    def chmod(self, tarinfo, targetpath):
+        """Set file permissions of targetpath according to tarinfo.
+        """
+        if hasattr(os, 'chmod'):
+            try:
+                os.chmod(targetpath, tarinfo.mode)
+            except EnvironmentError as e:
+                raise ExtractError("could not change mode")
+
+    def utime(self, tarinfo, targetpath):
+        """Set modification time of targetpath according to tarinfo.
+        """
+        if not hasattr(os, 'utime'):
+            return
+        try:
+            os.utime(targetpath, (tarinfo.mtime, tarinfo.mtime))
+        except EnvironmentError as e:
+            raise ExtractError("could not change modification time")
+
+    #--------------------------------------------------------------------------
+    def next(self):
+        """Return the next member of the archive as a TarInfo object, when
+           TarFile is opened for reading. Return None if there is no more
+           available.
+        """
+        self._check("ra")
+        if self.firstmember is not None:
+            m = self.firstmember
+            self.firstmember = None
+            return m
+
+        # Read the next block.
+        self.fileobj.seek(self.offset)
+        tarinfo = None
+        while True:
+            try:
+                tarinfo = self.tarinfo.fromtarfile(self)
+            except EOFHeaderError as e:
+                if self.ignore_zeros:
+                    self._dbg(2, "0x%X: %s" % (self.offset, e))
+                    self.offset += BLOCKSIZE
+                    continue
+            except InvalidHeaderError as e:
+                if self.ignore_zeros:
+                    self._dbg(2, "0x%X: %s" % (self.offset, e))
+                    self.offset += BLOCKSIZE
+                    continue
+                elif self.offset == 0:
+                    raise ReadError(str(e))
+            except EmptyHeaderError:
+                if self.offset == 0:
+                    raise ReadError("empty file")
+            except TruncatedHeaderError as e:
+                if self.offset == 0:
+                    raise ReadError(str(e))
+            except SubsequentHeaderError as e:
+                raise ReadError(str(e))
+            break
+
+        if tarinfo is not None:
+            self.members.append(tarinfo)
+        else:
+            self._loaded = True
+
+        return tarinfo
+
+    #--------------------------------------------------------------------------
+    # Little helper methods:
+
+    def _getmember(self, name, tarinfo=None, normalize=False):
+        """Find an archive member by name from bottom to top.
+           If tarinfo is given, it is used as the starting point.
+        """
+        # Ensure that all members have been loaded.
+        members = self.getmembers()
+
+        # Limit the member search list up to tarinfo.
+        if tarinfo is not None:
+            members = members[:members.index(tarinfo)]
+
+        if normalize:
+            name = os.path.normpath(name)
+
+        for member in reversed(members):
+            if normalize:
+                member_name = os.path.normpath(member.name)
+            else:
+                member_name = member.name
+
+            if name == member_name:
+                return member
+
+    def _load(self):
+        """Read through the entire archive file and look for readable
+           members.
+        """
+        while True:
+            tarinfo = self.next()
+            if tarinfo is None:
+                break
+        self._loaded = True
+
+    def _check(self, mode=None):
+        """Check if TarFile is still open, and if the operation's mode
+           corresponds to TarFile's mode.
+        """
+        if self.closed:
+            raise IOError("%s is closed" % self.__class__.__name__)
+        if mode is not None and self.mode not in mode:
+            raise IOError("bad operation for mode %r" % self.mode)
+
+    def _find_link_target(self, tarinfo):
+        """Find the target member of a symlink or hardlink member in the
+           archive.
+        """
+        if tarinfo.issym():
+            # Always search the entire archive.
+            linkname = os.path.dirname(tarinfo.name) + "/" + tarinfo.linkname
+            limit = None
+        else:
+            # Search the archive before the link, because a hard link is
+            # just a reference to an already archived file.
+            linkname = tarinfo.linkname
+            limit = tarinfo
+
+        member = self._getmember(linkname, tarinfo=limit, normalize=True)
+        if member is None:
+            raise KeyError("linkname %r not found" % linkname)
+        return member
+
+    def __iter__(self):
+        """Provide an iterator object.
+        """
+        if self._loaded:
+            return iter(self.members)
+        else:
+            return TarIter(self)
+
+    def _dbg(self, level, msg):
+        """Write debugging output to sys.stderr.
+        """
+        if level <= self.debug:
+            print(msg, file=sys.stderr)
+
+    def __enter__(self):
+        self._check()
+        return self
+
+    def __exit__(self, type, value, traceback):
+        if type is None:
+            self.close()
+        else:
+            # An exception occurred. We must not call close() because
+            # it would try to write end-of-archive blocks and padding.
+            if not self._extfileobj:
+                self.fileobj.close()
+            self.closed = True
+# class TarFile
+
+class TarIter(object):
+    """Iterator Class.
+
+       for tarinfo in TarFile(...):
+           suite...
+    """
+
+    def __init__(self, tarfile):
+        """Construct a TarIter object.
+        """
+        self.tarfile = tarfile
+        self.index = 0
+    def __iter__(self):
+        """Return iterator object.
+        """
+        return self
+
+    def __next__(self):
+        """Return the next item using TarFile's next() method.
+           When all members have been read, set TarFile as _loaded.
+        """
+        # Fix for SF #1100429: Under rare circumstances it can
+        # happen that getmembers() is called during iteration,
+        # which will cause TarIter to stop prematurely.
+        if not self.tarfile._loaded:
+            tarinfo = self.tarfile.next()
+            if not tarinfo:
+                self.tarfile._loaded = True
+                raise StopIteration
+        else:
+            try:
+                tarinfo = self.tarfile.members[self.index]
+            except IndexError:
+                raise StopIteration
+        self.index += 1
+        return tarinfo
+
+    next = __next__ # for Python 2.x
+
+#--------------------
+# exported functions
+#--------------------
+def is_tarfile(name):
+    """Return True if name points to a tar archive that we
+       are able to handle, else return False.
+    """
+    try:
+        t = open(name)
+        t.close()
+        return True
+    except TarError:
+        return False
+
+bltn_open = open
+open = TarFile.open
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/compat.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/compat.py
new file mode 100644
index 0000000..e594106
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/compat.py
@@ -0,0 +1,1122 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013-2017 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+from __future__ import absolute_import
+
+import os
+import re
+import sys
+
+try:
+    import ssl
+except ImportError:  # pragma: no cover
+    ssl = None
+
+if sys.version_info[0] < 3:  # pragma: no cover
+    from StringIO import StringIO
+    string_types = basestring,
+    text_type = unicode
+    from types import FileType as file_type
+    import __builtin__ as builtins
+    import ConfigParser as configparser
+    from ._backport import shutil
+    from urlparse import urlparse, urlunparse, urljoin, urlsplit, urlunsplit
+    from urllib import (urlretrieve, quote as _quote, unquote, url2pathname,
+                        pathname2url, ContentTooShortError, splittype)
+
+    def quote(s):
+        if isinstance(s, unicode):
+            s = s.encode('utf-8')
+        return _quote(s)
+
+    import urllib2
+    from urllib2 import (Request, urlopen, URLError, HTTPError,
+                         HTTPBasicAuthHandler, HTTPPasswordMgr,
+                         HTTPHandler, HTTPRedirectHandler,
+                         build_opener)
+    if ssl:
+        from urllib2 import HTTPSHandler
+    import httplib
+    import xmlrpclib
+    import Queue as queue
+    from HTMLParser import HTMLParser
+    import htmlentitydefs
+    raw_input = raw_input
+    from itertools import ifilter as filter
+    from itertools import ifilterfalse as filterfalse
+
+    # Leaving this around for now, in case it needs resurrecting in some way
+    # _userprog = None
+    # def splituser(host):
+        # """splituser('user[:passwd]@host[:port]') --> 'user[:passwd]', 'host[:port]'."""
+        # global _userprog
+        # if _userprog is None:
+            # import re
+            # _userprog = re.compile('^(.*)@(.*)$')
+
+        # match = _userprog.match(host)
+        # if match: return match.group(1, 2)
+        # return None, host
+
+else:  # pragma: no cover
+    from io import StringIO
+    string_types = str,
+    text_type = str
+    from io import TextIOWrapper as file_type
+    import builtins
+    import configparser
+    import shutil
+    from urllib.parse import (urlparse, urlunparse, urljoin, quote,
+                              unquote, urlsplit, urlunsplit, splittype)
+    from urllib.request import (urlopen, urlretrieve, Request, url2pathname,
+                                pathname2url,
+                                HTTPBasicAuthHandler, HTTPPasswordMgr,
+                                HTTPHandler, HTTPRedirectHandler,
+                                build_opener)
+    if ssl:
+        from urllib.request import HTTPSHandler
+    from urllib.error import HTTPError, URLError, ContentTooShortError
+    import http.client as httplib
+    import urllib.request as urllib2
+    import xmlrpc.client as xmlrpclib
+    import queue
+    from html.parser import HTMLParser
+    import html.entities as htmlentitydefs
+    raw_input = input
+    from itertools import filterfalse
+    filter = filter
+
+
+try:
+    from ssl import match_hostname, CertificateError
+except ImportError: # pragma: no cover
+    class CertificateError(ValueError):
+        pass
+
+
+    def _dnsname_match(dn, hostname, max_wildcards=1):
+        """Matching according to RFC 6125, section 6.4.3
+
+        http://tools.ietf.org/html/rfc6125#section-6.4.3
+        """
+        pats = []
+        if not dn:
+            return False
+
+        parts = dn.split('.')
+        leftmost, remainder = parts[0], parts[1:]
+
+        wildcards = leftmost.count('*')
+        if wildcards > max_wildcards:
+            # Issue #17980: avoid denials of service by refusing more
+            # than one wildcard per fragment.  A survey of established
+            # policy among SSL implementations showed it to be a
+            # reasonable choice.
+            raise CertificateError(
+                "too many wildcards in certificate DNS name: " + repr(dn))
+
+        # speed up common case w/o wildcards
+        if not wildcards:
+            return dn.lower() == hostname.lower()
+
+        # RFC 6125, section 6.4.3, subitem 1.
+        # The client SHOULD NOT attempt to match a presented identifier in which
+        # the wildcard character comprises a label other than the left-most label.
+        if leftmost == '*':
+            # When '*' is a fragment by itself, it matches a non-empty dotless
+            # fragment.
+            pats.append('[^.]+')
+        elif leftmost.startswith('xn--') or hostname.startswith('xn--'):
+            # RFC 6125, section 6.4.3, subitem 3.
+            # The client SHOULD NOT attempt to match a presented identifier
+            # where the wildcard character is embedded within an A-label or
+            # U-label of an internationalized domain name.
+            pats.append(re.escape(leftmost))
+        else:
+            # Otherwise, '*' matches any dotless string, e.g. www*
+            pats.append(re.escape(leftmost).replace(r'\*', '[^.]*'))
+
+        # add the remaining fragments, ignore any wildcards
+        for frag in remainder:
+            pats.append(re.escape(frag))
+
+        pat = re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE)
+        return pat.match(hostname)
+
+
+    def match_hostname(cert, hostname):
+        """Verify that *cert* (in decoded format as returned by
+        SSLSocket.getpeercert()) matches the *hostname*.  RFC 2818 and RFC 6125
+        rules are followed, but IP addresses are not accepted for *hostname*.
+
+        CertificateError is raised on failure. On success, the function
+        returns nothing.
+        """
+        if not cert:
+            raise ValueError("empty or no certificate, match_hostname needs a "
+                             "SSL socket or SSL context with either "
+                             "CERT_OPTIONAL or CERT_REQUIRED")
+        dnsnames = []
+        san = cert.get('subjectAltName', ())
+        for key, value in san:
+            if key == 'DNS':
+                if _dnsname_match(value, hostname):
+                    return
+                dnsnames.append(value)
+        if not dnsnames:
+            # The subject is only checked when there is no dNSName entry
+            # in subjectAltName
+            for sub in cert.get('subject', ()):
+                for key, value in sub:
+                    # XXX according to RFC 2818, the most specific Common Name
+                    # must be used.
+                    if key == 'commonName':
+                        if _dnsname_match(value, hostname):
+                            return
+                        dnsnames.append(value)
+        if len(dnsnames) > 1:
+            raise CertificateError("hostname %r "
+                "doesn't match either of %s"
+                % (hostname, ', '.join(map(repr, dnsnames))))
+        elif len(dnsnames) == 1:
+            raise CertificateError("hostname %r "
+                "doesn't match %r"
+                % (hostname, dnsnames[0]))
+        else:
+            raise CertificateError("no appropriate commonName or "
+                "subjectAltName fields were found")
+
+
+try:
+    from types import SimpleNamespace as Container
+except ImportError:  # pragma: no cover
+    class Container(object):
+        """
+        A generic container for when multiple values need to be returned
+        """
+        def __init__(self, **kwargs):
+            self.__dict__.update(kwargs)
+
+
+try:
+    from shutil import which
+except ImportError:  # pragma: no cover
+    # Implementation from Python 3.3
+    def which(cmd, mode=os.F_OK | os.X_OK, path=None):
+        """Given a command, mode, and a PATH string, return the path which
+        conforms to the given mode on the PATH, or None if there is no such
+        file.
+
+        `mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result
+        of os.environ.get("PATH"), or can be overridden with a custom search
+        path.
+
+        """
+        # Check that a given file can be accessed with the correct mode.
+        # Additionally check that `file` is not a directory, as on Windows
+        # directories pass the os.access check.
+        def _access_check(fn, mode):
+            return (os.path.exists(fn) and os.access(fn, mode)
+                    and not os.path.isdir(fn))
+
+        # If we're given a path with a directory part, look it up directly rather
+        # than referring to PATH directories. This includes checking relative to the
+        # current directory, e.g. ./script
+        if os.path.dirname(cmd):
+            if _access_check(cmd, mode):
+                return cmd
+            return None
+
+        if path is None:
+            path = os.environ.get("PATH", os.defpath)
+        if not path:
+            return None
+        path = path.split(os.pathsep)
+
+        if sys.platform == "win32":
+            # The current directory takes precedence on Windows.
+            if not os.curdir in path:
+                path.insert(0, os.curdir)
+
+            # PATHEXT is necessary to check on Windows.
+            pathext = os.environ.get("PATHEXT", "").split(os.pathsep)
+            # See if the given file matches any of the expected path extensions.
+            # This will allow us to short circuit when given "python.exe".
+            # If it does match, only test that one, otherwise we have to try
+            # others.
+            if any(cmd.lower().endswith(ext.lower()) for ext in pathext):
+                files = [cmd]
+            else:
+                files = [cmd + ext for ext in pathext]
+        else:
+            # On other platforms you don't have things like PATHEXT to tell you
+            # what file suffixes are executable, so just pass on cmd as-is.
+            files = [cmd]
+
+        seen = set()
+        for dir in path:
+            normdir = os.path.normcase(dir)
+            if not normdir in seen:
+                seen.add(normdir)
+                for thefile in files:
+                    name = os.path.join(dir, thefile)
+                    if _access_check(name, mode):
+                        return name
+        return None
+
+
+# ZipFile is a context manager in 2.7, but not in 2.6
+
+from zipfile import ZipFile as BaseZipFile
+
+if hasattr(BaseZipFile, '__enter__'):  # pragma: no cover
+    ZipFile = BaseZipFile
+else:  # pragma: no cover
+    from zipfile import ZipExtFile as BaseZipExtFile
+
+    class ZipExtFile(BaseZipExtFile):
+        def __init__(self, base):
+            self.__dict__.update(base.__dict__)
+
+        def __enter__(self):
+            return self
+
+        def __exit__(self, *exc_info):
+            self.close()
+            # return None, so if an exception occurred, it will propagate
+
+    class ZipFile(BaseZipFile):
+        def __enter__(self):
+            return self
+
+        def __exit__(self, *exc_info):
+            self.close()
+            # return None, so if an exception occurred, it will propagate
+
+        def open(self, *args, **kwargs):
+            base = BaseZipFile.open(self, *args, **kwargs)
+            return ZipExtFile(base)
+
+try:
+    from platform import python_implementation
+except ImportError: # pragma: no cover
+    def python_implementation():
+        """Return a string identifying the Python implementation."""
+        if 'PyPy' in sys.version:
+            return 'PyPy'
+        if os.name == 'java':
+            return 'Jython'
+        if sys.version.startswith('IronPython'):
+            return 'IronPython'
+        return 'CPython'
+
+try:
+    import sysconfig
+except ImportError: # pragma: no cover
+    from ._backport import sysconfig
+
+try:
+    callable = callable
+except NameError:   # pragma: no cover
+    from collections.abc import Callable
+
+    def callable(obj):
+        return isinstance(obj, Callable)
+
+
+try:
+    fsencode = os.fsencode
+    fsdecode = os.fsdecode
+except AttributeError:  # pragma: no cover
+    # Issue #99: on some systems (e.g. containerised),
+    # sys.getfilesystemencoding() returns None, and we need a real value,
+    # so fall back to utf-8. From the CPython 2.7 docs relating to Unix and
+    # sys.getfilesystemencoding(): the return value is "the user’s preference
+    # according to the result of nl_langinfo(CODESET), or None if the
+    # nl_langinfo(CODESET) failed."
+    _fsencoding = sys.getfilesystemencoding() or 'utf-8'
+    if _fsencoding == 'mbcs':
+        _fserrors = 'strict'
+    else:
+        _fserrors = 'surrogateescape'
+
+    def fsencode(filename):
+        if isinstance(filename, bytes):
+            return filename
+        elif isinstance(filename, text_type):
+            return filename.encode(_fsencoding, _fserrors)
+        else:
+            raise TypeError("expect bytes or str, not %s" %
+                            type(filename).__name__)
+
+    def fsdecode(filename):
+        if isinstance(filename, text_type):
+            return filename
+        elif isinstance(filename, bytes):
+            return filename.decode(_fsencoding, _fserrors)
+        else:
+            raise TypeError("expect bytes or str, not %s" %
+                            type(filename).__name__)
+
+try:
+    from tokenize import detect_encoding
+except ImportError: # pragma: no cover
+    from codecs import BOM_UTF8, lookup
+    import re
+
+    cookie_re = re.compile(r"coding[:=]\s*([-\w.]+)")
+
+    def _get_normal_name(orig_enc):
+        """Imitates get_normal_name in tokenizer.c."""
+        # Only care about the first 12 characters.
+        enc = orig_enc[:12].lower().replace("_", "-")
+        if enc == "utf-8" or enc.startswith("utf-8-"):
+            return "utf-8"
+        if enc in ("latin-1", "iso-8859-1", "iso-latin-1") or \
+           enc.startswith(("latin-1-", "iso-8859-1-", "iso-latin-1-")):
+            return "iso-8859-1"
+        return orig_enc
+
+    def detect_encoding(readline):
+        """
+        The detect_encoding() function is used to detect the encoding that should
+        be used to decode a Python source file.  It requires one argument, readline,
+        in the same way as the tokenize() generator.
+
+        It will call readline a maximum of twice, and return the encoding used
+        (as a string) and a list of any lines (left as bytes) it has read in.
+
+        It detects the encoding from the presence of a utf-8 bom or an encoding
+        cookie as specified in pep-0263.  If both a bom and a cookie are present,
+        but disagree, a SyntaxError will be raised.  If the encoding cookie is an
+        invalid charset, raise a SyntaxError.  Note that if a utf-8 bom is found,
+        'utf-8-sig' is returned.
+
+        If no encoding is specified, then the default of 'utf-8' will be returned.
+        """
+        try:
+            filename = readline.__self__.name
+        except AttributeError:
+            filename = None
+        bom_found = False
+        encoding = None
+        default = 'utf-8'
+        def read_or_stop():
+            try:
+                return readline()
+            except StopIteration:
+                return b''
+
+        def find_cookie(line):
+            try:
+                # Decode as UTF-8. Either the line is an encoding declaration,
+                # in which case it should be pure ASCII, or it must be UTF-8
+                # per default encoding.
+                line_string = line.decode('utf-8')
+            except UnicodeDecodeError:
+                msg = "invalid or missing encoding declaration"
+                if filename is not None:
+                    msg = '{} for {!r}'.format(msg, filename)
+                raise SyntaxError(msg)
+
+            matches = cookie_re.findall(line_string)
+            if not matches:
+                return None
+            encoding = _get_normal_name(matches[0])
+            try:
+                codec = lookup(encoding)
+            except LookupError:
+                # This behaviour mimics the Python interpreter
+                if filename is None:
+                    msg = "unknown encoding: " + encoding
+                else:
+                    msg = "unknown encoding for {!r}: {}".format(filename,
+                            encoding)
+                raise SyntaxError(msg)
+
+            if bom_found:
+                if codec.name != 'utf-8':
+                    # This behaviour mimics the Python interpreter
+                    if filename is None:
+                        msg = 'encoding problem: utf-8'
+                    else:
+                        msg = 'encoding problem for {!r}: utf-8'.format(filename)
+                    raise SyntaxError(msg)
+                encoding += '-sig'
+            return encoding
+
+        first = read_or_stop()
+        if first.startswith(BOM_UTF8):
+            bom_found = True
+            first = first[3:]
+            default = 'utf-8-sig'
+        if not first:
+            return default, []
+
+        encoding = find_cookie(first)
+        if encoding:
+            return encoding, [first]
+
+        second = read_or_stop()
+        if not second:
+            return default, [first]
+
+        encoding = find_cookie(second)
+        if encoding:
+            return encoding, [first, second]
+
+        return default, [first, second]
+
+# For converting & <-> & etc.
+try:
+    from html import escape
+except ImportError:
+    from cgi import escape
+if sys.version_info[:2] < (3, 4):
+    unescape = HTMLParser().unescape
+else:
+    from html import unescape
+
+try:
+    from collections import ChainMap
+except ImportError: # pragma: no cover
+    from collections import MutableMapping
+
+    try:
+        from reprlib import recursive_repr as _recursive_repr
+    except ImportError:
+        def _recursive_repr(fillvalue='...'):
+            '''
+            Decorator to make a repr function return fillvalue for a recursive
+            call
+            '''
+
+            def decorating_function(user_function):
+                repr_running = set()
+
+                def wrapper(self):
+                    key = id(self), get_ident()
+                    if key in repr_running:
+                        return fillvalue
+                    repr_running.add(key)
+                    try:
+                        result = user_function(self)
+                    finally:
+                        repr_running.discard(key)
+                    return result
+
+                # Can't use functools.wraps() here because of bootstrap issues
+                wrapper.__module__ = getattr(user_function, '__module__')
+                wrapper.__doc__ = getattr(user_function, '__doc__')
+                wrapper.__name__ = getattr(user_function, '__name__')
+                wrapper.__annotations__ = getattr(user_function, '__annotations__', {})
+                return wrapper
+
+            return decorating_function
+
+    class ChainMap(MutableMapping):
+        ''' A ChainMap groups multiple dicts (or other mappings) together
+        to create a single, updateable view.
+
+        The underlying mappings are stored in a list.  That list is public and can
+        accessed or updated using the *maps* attribute.  There is no other state.
+
+        Lookups search the underlying mappings successively until a key is found.
+        In contrast, writes, updates, and deletions only operate on the first
+        mapping.
+
+        '''
+
+        def __init__(self, *maps):
+            '''Initialize a ChainMap by setting *maps* to the given mappings.
+            If no mappings are provided, a single empty dictionary is used.
+
+            '''
+            self.maps = list(maps) or [{}]          # always at least one map
+
+        def __missing__(self, key):
+            raise KeyError(key)
+
+        def __getitem__(self, key):
+            for mapping in self.maps:
+                try:
+                    return mapping[key]             # can't use 'key in mapping' with defaultdict
+                except KeyError:
+                    pass
+            return self.__missing__(key)            # support subclasses that define __missing__
+
+        def get(self, key, default=None):
+            return self[key] if key in self else default
+
+        def __len__(self):
+            return len(set().union(*self.maps))     # reuses stored hash values if possible
+
+        def __iter__(self):
+            return iter(set().union(*self.maps))
+
+        def __contains__(self, key):
+            return any(key in m for m in self.maps)
+
+        def __bool__(self):
+            return any(self.maps)
+
+        @_recursive_repr()
+        def __repr__(self):
+            return '{0.__class__.__name__}({1})'.format(
+                self, ', '.join(map(repr, self.maps)))
+
+        @classmethod
+        def fromkeys(cls, iterable, *args):
+            'Create a ChainMap with a single dict created from the iterable.'
+            return cls(dict.fromkeys(iterable, *args))
+
+        def copy(self):
+            'New ChainMap or subclass with a new copy of maps[0] and refs to maps[1:]'
+            return self.__class__(self.maps[0].copy(), *self.maps[1:])
+
+        __copy__ = copy
+
+        def new_child(self):                        # like Django's Context.push()
+            'New ChainMap with a new dict followed by all previous maps.'
+            return self.__class__({}, *self.maps)
+
+        @property
+        def parents(self):                          # like Django's Context.pop()
+            'New ChainMap from maps[1:].'
+            return self.__class__(*self.maps[1:])
+
+        def __setitem__(self, key, value):
+            self.maps[0][key] = value
+
+        def __delitem__(self, key):
+            try:
+                del self.maps[0][key]
+            except KeyError:
+                raise KeyError('Key not found in the first mapping: {!r}'.format(key))
+
+        def popitem(self):
+            'Remove and return an item pair from maps[0]. Raise KeyError is maps[0] is empty.'
+            try:
+                return self.maps[0].popitem()
+            except KeyError:
+                raise KeyError('No keys found in the first mapping.')
+
+        def pop(self, key, *args):
+            'Remove *key* from maps[0] and return its value. Raise KeyError if *key* not in maps[0].'
+            try:
+                return self.maps[0].pop(key, *args)
+            except KeyError:
+                raise KeyError('Key not found in the first mapping: {!r}'.format(key))
+
+        def clear(self):
+            'Clear maps[0], leaving maps[1:] intact.'
+            self.maps[0].clear()
+
+try:
+    from importlib.util import cache_from_source  # Python >= 3.4
+except ImportError:  # pragma: no cover
+    try:
+        from imp import cache_from_source
+    except ImportError:  # pragma: no cover
+        def cache_from_source(path, debug_override=None):
+            assert path.endswith('.py')
+            if debug_override is None:
+                debug_override = __debug__
+            if debug_override:
+                suffix = 'c'
+            else:
+                suffix = 'o'
+            return path + suffix
+
+try:
+    from collections import OrderedDict
+except ImportError: # pragma: no cover
+## {{{ http://code.activestate.com/recipes/576693/ (r9)
+# Backport of OrderedDict() class that runs on Python 2.4, 2.5, 2.6, 2.7 and pypy.
+# Passes Python2.7's test suite and incorporates all the latest updates.
+    try:
+        from thread import get_ident as _get_ident
+    except ImportError:
+        from dummy_thread import get_ident as _get_ident
+
+    try:
+        from _abcoll import KeysView, ValuesView, ItemsView
+    except ImportError:
+        pass
+
+
+    class OrderedDict(dict):
+        'Dictionary that remembers insertion order'
+        # An inherited dict maps keys to values.
+        # The inherited dict provides __getitem__, __len__, __contains__, and get.
+        # The remaining methods are order-aware.
+        # Big-O running times for all methods are the same as for regular dictionaries.
+
+        # The internal self.__map dictionary maps keys to links in a doubly linked list.
+        # The circular doubly linked list starts and ends with a sentinel element.
+        # The sentinel element never gets deleted (this simplifies the algorithm).
+        # Each link is stored as a list of length three:  [PREV, NEXT, KEY].
+
+        def __init__(self, *args, **kwds):
+            '''Initialize an ordered dictionary.  Signature is the same as for
+            regular dictionaries, but keyword arguments are not recommended
+            because their insertion order is arbitrary.
+
+            '''
+            if len(args) > 1:
+                raise TypeError('expected at most 1 arguments, got %d' % len(args))
+            try:
+                self.__root
+            except AttributeError:
+                self.__root = root = []                     # sentinel node
+                root[:] = [root, root, None]
+                self.__map = {}
+            self.__update(*args, **kwds)
+
+        def __setitem__(self, key, value, dict_setitem=dict.__setitem__):
+            'od.__setitem__(i, y) <==> od[i]=y'
+            # Setting a new item creates a new link which goes at the end of the linked
+            # list, and the inherited dictionary is updated with the new key/value pair.
+            if key not in self:
+                root = self.__root
+                last = root[0]
+                last[1] = root[0] = self.__map[key] = [last, root, key]
+            dict_setitem(self, key, value)
+
+        def __delitem__(self, key, dict_delitem=dict.__delitem__):
+            'od.__delitem__(y) <==> del od[y]'
+            # Deleting an existing item uses self.__map to find the link which is
+            # then removed by updating the links in the predecessor and successor nodes.
+            dict_delitem(self, key)
+            link_prev, link_next, key = self.__map.pop(key)
+            link_prev[1] = link_next
+            link_next[0] = link_prev
+
+        def __iter__(self):
+            'od.__iter__() <==> iter(od)'
+            root = self.__root
+            curr = root[1]
+            while curr is not root:
+                yield curr[2]
+                curr = curr[1]
+
+        def __reversed__(self):
+            'od.__reversed__() <==> reversed(od)'
+            root = self.__root
+            curr = root[0]
+            while curr is not root:
+                yield curr[2]
+                curr = curr[0]
+
+        def clear(self):
+            'od.clear() -> None.  Remove all items from od.'
+            try:
+                for node in self.__map.itervalues():
+                    del node[:]
+                root = self.__root
+                root[:] = [root, root, None]
+                self.__map.clear()
+            except AttributeError:
+                pass
+            dict.clear(self)
+
+        def popitem(self, last=True):
+            '''od.popitem() -> (k, v), return and remove a (key, value) pair.
+            Pairs are returned in LIFO order if last is true or FIFO order if false.
+
+            '''
+            if not self:
+                raise KeyError('dictionary is empty')
+            root = self.__root
+            if last:
+                link = root[0]
+                link_prev = link[0]
+                link_prev[1] = root
+                root[0] = link_prev
+            else:
+                link = root[1]
+                link_next = link[1]
+                root[1] = link_next
+                link_next[0] = root
+            key = link[2]
+            del self.__map[key]
+            value = dict.pop(self, key)
+            return key, value
+
+        # -- the following methods do not depend on the internal structure --
+
+        def keys(self):
+            'od.keys() -> list of keys in od'
+            return list(self)
+
+        def values(self):
+            'od.values() -> list of values in od'
+            return [self[key] for key in self]
+
+        def items(self):
+            'od.items() -> list of (key, value) pairs in od'
+            return [(key, self[key]) for key in self]
+
+        def iterkeys(self):
+            'od.iterkeys() -> an iterator over the keys in od'
+            return iter(self)
+
+        def itervalues(self):
+            'od.itervalues -> an iterator over the values in od'
+            for k in self:
+                yield self[k]
+
+        def iteritems(self):
+            'od.iteritems -> an iterator over the (key, value) items in od'
+            for k in self:
+                yield (k, self[k])
+
+        def update(*args, **kwds):
+            '''od.update(E, **F) -> None.  Update od from dict/iterable E and F.
+
+            If E is a dict instance, does:           for k in E: od[k] = E[k]
+            If E has a .keys() method, does:         for k in E.keys(): od[k] = E[k]
+            Or if E is an iterable of items, does:   for k, v in E: od[k] = v
+            In either case, this is followed by:     for k, v in F.items(): od[k] = v
+
+            '''
+            if len(args) > 2:
+                raise TypeError('update() takes at most 2 positional '
+                                'arguments (%d given)' % (len(args),))
+            elif not args:
+                raise TypeError('update() takes at least 1 argument (0 given)')
+            self = args[0]
+            # Make progressively weaker assumptions about "other"
+            other = ()
+            if len(args) == 2:
+                other = args[1]
+            if isinstance(other, dict):
+                for key in other:
+                    self[key] = other[key]
+            elif hasattr(other, 'keys'):
+                for key in other.keys():
+                    self[key] = other[key]
+            else:
+                for key, value in other:
+                    self[key] = value
+            for key, value in kwds.items():
+                self[key] = value
+
+        __update = update  # let subclasses override update without breaking __init__
+
+        __marker = object()
+
+        def pop(self, key, default=__marker):
+            '''od.pop(k[,d]) -> v, remove specified key and return the corresponding value.
+            If key is not found, d is returned if given, otherwise KeyError is raised.
+
+            '''
+            if key in self:
+                result = self[key]
+                del self[key]
+                return result
+            if default is self.__marker:
+                raise KeyError(key)
+            return default
+
+        def setdefault(self, key, default=None):
+            'od.setdefault(k[,d]) -> od.get(k,d), also set od[k]=d if k not in od'
+            if key in self:
+                return self[key]
+            self[key] = default
+            return default
+
+        def __repr__(self, _repr_running=None):
+            'od.__repr__() <==> repr(od)'
+            if not _repr_running: _repr_running = {}
+            call_key = id(self), _get_ident()
+            if call_key in _repr_running:
+                return '...'
+            _repr_running[call_key] = 1
+            try:
+                if not self:
+                    return '%s()' % (self.__class__.__name__,)
+                return '%s(%r)' % (self.__class__.__name__, self.items())
+            finally:
+                del _repr_running[call_key]
+
+        def __reduce__(self):
+            'Return state information for pickling'
+            items = [[k, self[k]] for k in self]
+            inst_dict = vars(self).copy()
+            for k in vars(OrderedDict()):
+                inst_dict.pop(k, None)
+            if inst_dict:
+                return (self.__class__, (items,), inst_dict)
+            return self.__class__, (items,)
+
+        def copy(self):
+            'od.copy() -> a shallow copy of od'
+            return self.__class__(self)
+
+        @classmethod
+        def fromkeys(cls, iterable, value=None):
+            '''OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S
+            and values equal to v (which defaults to None).
+
+            '''
+            d = cls()
+            for key in iterable:
+                d[key] = value
+            return d
+
+        def __eq__(self, other):
+            '''od.__eq__(y) <==> od==y.  Comparison to another OD is order-sensitive
+            while comparison to a regular mapping is order-insensitive.
+
+            '''
+            if isinstance(other, OrderedDict):
+                return len(self)==len(other) and self.items() == other.items()
+            return dict.__eq__(self, other)
+
+        def __ne__(self, other):
+            return not self == other
+
+        # -- the following methods are only used in Python 2.7 --
+
+        def viewkeys(self):
+            "od.viewkeys() -> a set-like object providing a view on od's keys"
+            return KeysView(self)
+
+        def viewvalues(self):
+            "od.viewvalues() -> an object providing a view on od's values"
+            return ValuesView(self)
+
+        def viewitems(self):
+            "od.viewitems() -> a set-like object providing a view on od's items"
+            return ItemsView(self)
+
+try:
+    from logging.config import BaseConfigurator, valid_ident
+except ImportError: # pragma: no cover
+    IDENTIFIER = re.compile('^[a-z_][a-z0-9_]*$', re.I)
+
+
+    def valid_ident(s):
+        m = IDENTIFIER.match(s)
+        if not m:
+            raise ValueError('Not a valid Python identifier: %r' % s)
+        return True
+
+
+    # The ConvertingXXX classes are wrappers around standard Python containers,
+    # and they serve to convert any suitable values in the container. The
+    # conversion converts base dicts, lists and tuples to their wrapped
+    # equivalents, whereas strings which match a conversion format are converted
+    # appropriately.
+    #
+    # Each wrapper should have a configurator attribute holding the actual
+    # configurator to use for conversion.
+
+    class ConvertingDict(dict):
+        """A converting dictionary wrapper."""
+
+        def __getitem__(self, key):
+            value = dict.__getitem__(self, key)
+            result = self.configurator.convert(value)
+            #If the converted value is different, save for next time
+            if value is not result:
+                self[key] = result
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+                    result.key = key
+            return result
+
+        def get(self, key, default=None):
+            value = dict.get(self, key, default)
+            result = self.configurator.convert(value)
+            #If the converted value is different, save for next time
+            if value is not result:
+                self[key] = result
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+                    result.key = key
+            return result
+
+    def pop(self, key, default=None):
+        value = dict.pop(self, key, default)
+        result = self.configurator.convert(value)
+        if value is not result:
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+    class ConvertingList(list):
+        """A converting list wrapper."""
+        def __getitem__(self, key):
+            value = list.__getitem__(self, key)
+            result = self.configurator.convert(value)
+            #If the converted value is different, save for next time
+            if value is not result:
+                self[key] = result
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+                    result.key = key
+            return result
+
+        def pop(self, idx=-1):
+            value = list.pop(self, idx)
+            result = self.configurator.convert(value)
+            if value is not result:
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+            return result
+
+    class ConvertingTuple(tuple):
+        """A converting tuple wrapper."""
+        def __getitem__(self, key):
+            value = tuple.__getitem__(self, key)
+            result = self.configurator.convert(value)
+            if value is not result:
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+                    result.key = key
+            return result
+
+    class BaseConfigurator(object):
+        """
+        The configurator base class which defines some useful defaults.
+        """
+
+        CONVERT_PATTERN = re.compile(r'^(?P[a-z]+)://(?P.*)$')
+
+        WORD_PATTERN = re.compile(r'^\s*(\w+)\s*')
+        DOT_PATTERN = re.compile(r'^\.\s*(\w+)\s*')
+        INDEX_PATTERN = re.compile(r'^\[\s*(\w+)\s*\]\s*')
+        DIGIT_PATTERN = re.compile(r'^\d+$')
+
+        value_converters = {
+            'ext' : 'ext_convert',
+            'cfg' : 'cfg_convert',
+        }
+
+        # We might want to use a different one, e.g. importlib
+        importer = staticmethod(__import__)
+
+        def __init__(self, config):
+            self.config = ConvertingDict(config)
+            self.config.configurator = self
+
+        def resolve(self, s):
+            """
+            Resolve strings to objects using standard import and attribute
+            syntax.
+            """
+            name = s.split('.')
+            used = name.pop(0)
+            try:
+                found = self.importer(used)
+                for frag in name:
+                    used += '.' + frag
+                    try:
+                        found = getattr(found, frag)
+                    except AttributeError:
+                        self.importer(used)
+                        found = getattr(found, frag)
+                return found
+            except ImportError:
+                e, tb = sys.exc_info()[1:]
+                v = ValueError('Cannot resolve %r: %s' % (s, e))
+                v.__cause__, v.__traceback__ = e, tb
+                raise v
+
+        def ext_convert(self, value):
+            """Default converter for the ext:// protocol."""
+            return self.resolve(value)
+
+        def cfg_convert(self, value):
+            """Default converter for the cfg:// protocol."""
+            rest = value
+            m = self.WORD_PATTERN.match(rest)
+            if m is None:
+                raise ValueError("Unable to convert %r" % value)
+            else:
+                rest = rest[m.end():]
+                d = self.config[m.groups()[0]]
+                #print d, rest
+                while rest:
+                    m = self.DOT_PATTERN.match(rest)
+                    if m:
+                        d = d[m.groups()[0]]
+                    else:
+                        m = self.INDEX_PATTERN.match(rest)
+                        if m:
+                            idx = m.groups()[0]
+                            if not self.DIGIT_PATTERN.match(idx):
+                                d = d[idx]
+                            else:
+                                try:
+                                    n = int(idx) # try as number first (most likely)
+                                    d = d[n]
+                                except TypeError:
+                                    d = d[idx]
+                    if m:
+                        rest = rest[m.end():]
+                    else:
+                        raise ValueError('Unable to convert '
+                                         '%r at %r' % (value, rest))
+            #rest should be empty
+            return d
+
+        def convert(self, value):
+            """
+            Convert values to an appropriate type. dicts, lists and tuples are
+            replaced by their converting alternatives. Strings are checked to
+            see if they have a conversion format and are converted if they do.
+            """
+            if not isinstance(value, ConvertingDict) and isinstance(value, dict):
+                value = ConvertingDict(value)
+                value.configurator = self
+            elif not isinstance(value, ConvertingList) and isinstance(value, list):
+                value = ConvertingList(value)
+                value.configurator = self
+            elif not isinstance(value, ConvertingTuple) and\
+                     isinstance(value, tuple):
+                value = ConvertingTuple(value)
+                value.configurator = self
+            elif isinstance(value, string_types):
+                m = self.CONVERT_PATTERN.match(value)
+                if m:
+                    d = m.groupdict()
+                    prefix = d['prefix']
+                    converter = self.value_converters.get(prefix, None)
+                    if converter:
+                        suffix = d['suffix']
+                        converter = getattr(self, converter)
+                        value = converter(suffix)
+            return value
+
+        def configure_custom(self, config):
+            """Configure an object with a user-supplied factory."""
+            c = config.pop('()')
+            if not callable(c):
+                c = self.resolve(c)
+            props = config.pop('.', None)
+            # Check for valid identifiers
+            kwargs = dict([(k, config[k]) for k in config if valid_ident(k)])
+            result = c(**kwargs)
+            if props:
+                for name, value in props.items():
+                    setattr(result, name, value)
+            return result
+
+        def as_tuple(self, value):
+            """Utility function which converts lists to tuples."""
+            if isinstance(value, list):
+                value = tuple(value)
+            return value
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/database.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/database.py
new file mode 100644
index 0000000..0a90c30
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/database.py
@@ -0,0 +1,1339 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2017 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""PEP 376 implementation."""
+
+from __future__ import unicode_literals
+
+import base64
+import codecs
+import contextlib
+import hashlib
+import logging
+import os
+import posixpath
+import sys
+import zipimport
+
+from . import DistlibException, resources
+from .compat import StringIO
+from .version import get_scheme, UnsupportedVersionError
+from .metadata import (Metadata, METADATA_FILENAME, WHEEL_METADATA_FILENAME,
+                       LEGACY_METADATA_FILENAME)
+from .util import (parse_requirement, cached_property, parse_name_and_version,
+                   read_exports, write_exports, CSVReader, CSVWriter)
+
+
+__all__ = ['Distribution', 'BaseInstalledDistribution',
+           'InstalledDistribution', 'EggInfoDistribution',
+           'DistributionPath']
+
+
+logger = logging.getLogger(__name__)
+
+EXPORTS_FILENAME = 'pydist-exports.json'
+COMMANDS_FILENAME = 'pydist-commands.json'
+
+DIST_FILES = ('INSTALLER', METADATA_FILENAME, 'RECORD', 'REQUESTED',
+              'RESOURCES', EXPORTS_FILENAME, 'SHARED')
+
+DISTINFO_EXT = '.dist-info'
+
+
+class _Cache(object):
+    """
+    A simple cache mapping names and .dist-info paths to distributions
+    """
+    def __init__(self):
+        """
+        Initialise an instance. There is normally one for each DistributionPath.
+        """
+        self.name = {}
+        self.path = {}
+        self.generated = False
+
+    def clear(self):
+        """
+        Clear the cache, setting it to its initial state.
+        """
+        self.name.clear()
+        self.path.clear()
+        self.generated = False
+
+    def add(self, dist):
+        """
+        Add a distribution to the cache.
+        :param dist: The distribution to add.
+        """
+        if dist.path not in self.path:
+            self.path[dist.path] = dist
+            self.name.setdefault(dist.key, []).append(dist)
+
+
+class DistributionPath(object):
+    """
+    Represents a set of distributions installed on a path (typically sys.path).
+    """
+    def __init__(self, path=None, include_egg=False):
+        """
+        Create an instance from a path, optionally including legacy (distutils/
+        setuptools/distribute) distributions.
+        :param path: The path to use, as a list of directories. If not specified,
+                     sys.path is used.
+        :param include_egg: If True, this instance will look for and return legacy
+                            distributions as well as those based on PEP 376.
+        """
+        if path is None:
+            path = sys.path
+        self.path = path
+        self._include_dist = True
+        self._include_egg = include_egg
+
+        self._cache = _Cache()
+        self._cache_egg = _Cache()
+        self._cache_enabled = True
+        self._scheme = get_scheme('default')
+
+    def _get_cache_enabled(self):
+        return self._cache_enabled
+
+    def _set_cache_enabled(self, value):
+        self._cache_enabled = value
+
+    cache_enabled = property(_get_cache_enabled, _set_cache_enabled)
+
+    def clear_cache(self):
+        """
+        Clears the internal cache.
+        """
+        self._cache.clear()
+        self._cache_egg.clear()
+
+
+    def _yield_distributions(self):
+        """
+        Yield .dist-info and/or .egg(-info) distributions.
+        """
+        # We need to check if we've seen some resources already, because on
+        # some Linux systems (e.g. some Debian/Ubuntu variants) there are
+        # symlinks which alias other files in the environment.
+        seen = set()
+        for path in self.path:
+            finder = resources.finder_for_path(path)
+            if finder is None:
+                continue
+            r = finder.find('')
+            if not r or not r.is_container:
+                continue
+            rset = sorted(r.resources)
+            for entry in rset:
+                r = finder.find(entry)
+                if not r or r.path in seen:
+                    continue
+                if self._include_dist and entry.endswith(DISTINFO_EXT):
+                    possible_filenames = [METADATA_FILENAME,
+                                          WHEEL_METADATA_FILENAME,
+                                          LEGACY_METADATA_FILENAME]
+                    for metadata_filename in possible_filenames:
+                        metadata_path = posixpath.join(entry, metadata_filename)
+                        pydist = finder.find(metadata_path)
+                        if pydist:
+                            break
+                    else:
+                        continue
+
+                    with contextlib.closing(pydist.as_stream()) as stream:
+                        metadata = Metadata(fileobj=stream, scheme='legacy')
+                    logger.debug('Found %s', r.path)
+                    seen.add(r.path)
+                    yield new_dist_class(r.path, metadata=metadata,
+                                         env=self)
+                elif self._include_egg and entry.endswith(('.egg-info',
+                                                          '.egg')):
+                    logger.debug('Found %s', r.path)
+                    seen.add(r.path)
+                    yield old_dist_class(r.path, self)
+
+    def _generate_cache(self):
+        """
+        Scan the path for distributions and populate the cache with
+        those that are found.
+        """
+        gen_dist = not self._cache.generated
+        gen_egg = self._include_egg and not self._cache_egg.generated
+        if gen_dist or gen_egg:
+            for dist in self._yield_distributions():
+                if isinstance(dist, InstalledDistribution):
+                    self._cache.add(dist)
+                else:
+                    self._cache_egg.add(dist)
+
+            if gen_dist:
+                self._cache.generated = True
+            if gen_egg:
+                self._cache_egg.generated = True
+
+    @classmethod
+    def distinfo_dirname(cls, name, version):
+        """
+        The *name* and *version* parameters are converted into their
+        filename-escaped form, i.e. any ``'-'`` characters are replaced
+        with ``'_'`` other than the one in ``'dist-info'`` and the one
+        separating the name from the version number.
+
+        :parameter name: is converted to a standard distribution name by replacing
+                         any runs of non- alphanumeric characters with a single
+                         ``'-'``.
+        :type name: string
+        :parameter version: is converted to a standard version string. Spaces
+                            become dots, and all other non-alphanumeric characters
+                            (except dots) become dashes, with runs of multiple
+                            dashes condensed to a single dash.
+        :type version: string
+        :returns: directory name
+        :rtype: string"""
+        name = name.replace('-', '_')
+        return '-'.join([name, version]) + DISTINFO_EXT
+
+    def get_distributions(self):
+        """
+        Provides an iterator that looks for distributions and returns
+        :class:`InstalledDistribution` or
+        :class:`EggInfoDistribution` instances for each one of them.
+
+        :rtype: iterator of :class:`InstalledDistribution` and
+                :class:`EggInfoDistribution` instances
+        """
+        if not self._cache_enabled:
+            for dist in self._yield_distributions():
+                yield dist
+        else:
+            self._generate_cache()
+
+            for dist in self._cache.path.values():
+                yield dist
+
+            if self._include_egg:
+                for dist in self._cache_egg.path.values():
+                    yield dist
+
+    def get_distribution(self, name):
+        """
+        Looks for a named distribution on the path.
+
+        This function only returns the first result found, as no more than one
+        value is expected. If nothing is found, ``None`` is returned.
+
+        :rtype: :class:`InstalledDistribution`, :class:`EggInfoDistribution`
+                or ``None``
+        """
+        result = None
+        name = name.lower()
+        if not self._cache_enabled:
+            for dist in self._yield_distributions():
+                if dist.key == name:
+                    result = dist
+                    break
+        else:
+            self._generate_cache()
+
+            if name in self._cache.name:
+                result = self._cache.name[name][0]
+            elif self._include_egg and name in self._cache_egg.name:
+                result = self._cache_egg.name[name][0]
+        return result
+
+    def provides_distribution(self, name, version=None):
+        """
+        Iterates over all distributions to find which distributions provide *name*.
+        If a *version* is provided, it will be used to filter the results.
+
+        This function only returns the first result found, since no more than
+        one values are expected. If the directory is not found, returns ``None``.
+
+        :parameter version: a version specifier that indicates the version
+                            required, conforming to the format in ``PEP-345``
+
+        :type name: string
+        :type version: string
+        """
+        matcher = None
+        if version is not None:
+            try:
+                matcher = self._scheme.matcher('%s (%s)' % (name, version))
+            except ValueError:
+                raise DistlibException('invalid name or version: %r, %r' %
+                                      (name, version))
+
+        for dist in self.get_distributions():
+            # We hit a problem on Travis where enum34 was installed and doesn't
+            # have a provides attribute ...
+            if not hasattr(dist, 'provides'):
+                logger.debug('No "provides": %s', dist)
+            else:
+                provided = dist.provides
+
+                for p in provided:
+                    p_name, p_ver = parse_name_and_version(p)
+                    if matcher is None:
+                        if p_name == name:
+                            yield dist
+                            break
+                    else:
+                        if p_name == name and matcher.match(p_ver):
+                            yield dist
+                            break
+
+    def get_file_path(self, name, relative_path):
+        """
+        Return the path to a resource file.
+        """
+        dist = self.get_distribution(name)
+        if dist is None:
+            raise LookupError('no distribution named %r found' % name)
+        return dist.get_resource_path(relative_path)
+
+    def get_exported_entries(self, category, name=None):
+        """
+        Return all of the exported entries in a particular category.
+
+        :param category: The category to search for entries.
+        :param name: If specified, only entries with that name are returned.
+        """
+        for dist in self.get_distributions():
+            r = dist.exports
+            if category in r:
+                d = r[category]
+                if name is not None:
+                    if name in d:
+                        yield d[name]
+                else:
+                    for v in d.values():
+                        yield v
+
+
+class Distribution(object):
+    """
+    A base class for distributions, whether installed or from indexes.
+    Either way, it must have some metadata, so that's all that's needed
+    for construction.
+    """
+
+    build_time_dependency = False
+    """
+    Set to True if it's known to be only a build-time dependency (i.e.
+    not needed after installation).
+    """
+
+    requested = False
+    """A boolean that indicates whether the ``REQUESTED`` metadata file is
+    present (in other words, whether the package was installed by user
+    request or it was installed as a dependency)."""
+
+    def __init__(self, metadata):
+        """
+        Initialise an instance.
+        :param metadata: The instance of :class:`Metadata` describing this
+        distribution.
+        """
+        self.metadata = metadata
+        self.name = metadata.name
+        self.key = self.name.lower()    # for case-insensitive comparisons
+        self.version = metadata.version
+        self.locator = None
+        self.digest = None
+        self.extras = None      # additional features requested
+        self.context = None     # environment marker overrides
+        self.download_urls = set()
+        self.digests = {}
+
+    @property
+    def source_url(self):
+        """
+        The source archive download URL for this distribution.
+        """
+        return self.metadata.source_url
+
+    download_url = source_url   # Backward compatibility
+
+    @property
+    def name_and_version(self):
+        """
+        A utility property which displays the name and version in parentheses.
+        """
+        return '%s (%s)' % (self.name, self.version)
+
+    @property
+    def provides(self):
+        """
+        A set of distribution names and versions provided by this distribution.
+        :return: A set of "name (version)" strings.
+        """
+        plist = self.metadata.provides
+        s = '%s (%s)' % (self.name, self.version)
+        if s not in plist:
+            plist.append(s)
+        return plist
+
+    def _get_requirements(self, req_attr):
+        md = self.metadata
+        logger.debug('Getting requirements from metadata %r', md.todict())
+        reqts = getattr(md, req_attr)
+        return set(md.get_requirements(reqts, extras=self.extras,
+                                       env=self.context))
+
+    @property
+    def run_requires(self):
+        return self._get_requirements('run_requires')
+
+    @property
+    def meta_requires(self):
+        return self._get_requirements('meta_requires')
+
+    @property
+    def build_requires(self):
+        return self._get_requirements('build_requires')
+
+    @property
+    def test_requires(self):
+        return self._get_requirements('test_requires')
+
+    @property
+    def dev_requires(self):
+        return self._get_requirements('dev_requires')
+
+    def matches_requirement(self, req):
+        """
+        Say if this instance matches (fulfills) a requirement.
+        :param req: The requirement to match.
+        :rtype req: str
+        :return: True if it matches, else False.
+        """
+        # Requirement may contain extras - parse to lose those
+        # from what's passed to the matcher
+        r = parse_requirement(req)
+        scheme = get_scheme(self.metadata.scheme)
+        try:
+            matcher = scheme.matcher(r.requirement)
+        except UnsupportedVersionError:
+            # XXX compat-mode if cannot read the version
+            logger.warning('could not read version %r - using name only',
+                           req)
+            name = req.split()[0]
+            matcher = scheme.matcher(name)
+
+        name = matcher.key   # case-insensitive
+
+        result = False
+        for p in self.provides:
+            p_name, p_ver = parse_name_and_version(p)
+            if p_name != name:
+                continue
+            try:
+                result = matcher.match(p_ver)
+                break
+            except UnsupportedVersionError:
+                pass
+        return result
+
+    def __repr__(self):
+        """
+        Return a textual representation of this instance,
+        """
+        if self.source_url:
+            suffix = ' [%s]' % self.source_url
+        else:
+            suffix = ''
+        return '' % (self.name, self.version, suffix)
+
+    def __eq__(self, other):
+        """
+        See if this distribution is the same as another.
+        :param other: The distribution to compare with. To be equal to one
+                      another. distributions must have the same type, name,
+                      version and source_url.
+        :return: True if it is the same, else False.
+        """
+        if type(other) is not type(self):
+            result = False
+        else:
+            result = (self.name == other.name and
+                      self.version == other.version and
+                      self.source_url == other.source_url)
+        return result
+
+    def __hash__(self):
+        """
+        Compute hash in a way which matches the equality test.
+        """
+        return hash(self.name) + hash(self.version) + hash(self.source_url)
+
+
+class BaseInstalledDistribution(Distribution):
+    """
+    This is the base class for installed distributions (whether PEP 376 or
+    legacy).
+    """
+
+    hasher = None
+
+    def __init__(self, metadata, path, env=None):
+        """
+        Initialise an instance.
+        :param metadata: An instance of :class:`Metadata` which describes the
+                         distribution. This will normally have been initialised
+                         from a metadata file in the ``path``.
+        :param path:     The path of the ``.dist-info`` or ``.egg-info``
+                         directory for the distribution.
+        :param env:      This is normally the :class:`DistributionPath`
+                         instance where this distribution was found.
+        """
+        super(BaseInstalledDistribution, self).__init__(metadata)
+        self.path = path
+        self.dist_path = env
+
+    def get_hash(self, data, hasher=None):
+        """
+        Get the hash of some data, using a particular hash algorithm, if
+        specified.
+
+        :param data: The data to be hashed.
+        :type data: bytes
+        :param hasher: The name of a hash implementation, supported by hashlib,
+                       or ``None``. Examples of valid values are ``'sha1'``,
+                       ``'sha224'``, ``'sha384'``, '``sha256'``, ``'md5'`` and
+                       ``'sha512'``. If no hasher is specified, the ``hasher``
+                       attribute of the :class:`InstalledDistribution` instance
+                       is used. If the hasher is determined to be ``None``, MD5
+                       is used as the hashing algorithm.
+        :returns: The hash of the data. If a hasher was explicitly specified,
+                  the returned hash will be prefixed with the specified hasher
+                  followed by '='.
+        :rtype: str
+        """
+        if hasher is None:
+            hasher = self.hasher
+        if hasher is None:
+            hasher = hashlib.md5
+            prefix = ''
+        else:
+            hasher = getattr(hashlib, hasher)
+            prefix = '%s=' % self.hasher
+        digest = hasher(data).digest()
+        digest = base64.urlsafe_b64encode(digest).rstrip(b'=').decode('ascii')
+        return '%s%s' % (prefix, digest)
+
+
+class InstalledDistribution(BaseInstalledDistribution):
+    """
+    Created with the *path* of the ``.dist-info`` directory provided to the
+    constructor. It reads the metadata contained in ``pydist.json`` when it is
+    instantiated., or uses a passed in Metadata instance (useful for when
+    dry-run mode is being used).
+    """
+
+    hasher = 'sha256'
+
+    def __init__(self, path, metadata=None, env=None):
+        self.modules = []
+        self.finder = finder = resources.finder_for_path(path)
+        if finder is None:
+            raise ValueError('finder unavailable for %s' % path)
+        if env and env._cache_enabled and path in env._cache.path:
+            metadata = env._cache.path[path].metadata
+        elif metadata is None:
+            r = finder.find(METADATA_FILENAME)
+            # Temporary - for Wheel 0.23 support
+            if r is None:
+                r = finder.find(WHEEL_METADATA_FILENAME)
+            # Temporary - for legacy support
+            if r is None:
+                r = finder.find(LEGACY_METADATA_FILENAME)
+            if r is None:
+                raise ValueError('no %s found in %s' % (METADATA_FILENAME,
+                                                        path))
+            with contextlib.closing(r.as_stream()) as stream:
+                metadata = Metadata(fileobj=stream, scheme='legacy')
+
+        super(InstalledDistribution, self).__init__(metadata, path, env)
+
+        if env and env._cache_enabled:
+            env._cache.add(self)
+
+        r = finder.find('REQUESTED')
+        self.requested = r is not None
+        p  = os.path.join(path, 'top_level.txt')
+        if os.path.exists(p):
+            with open(p, 'rb') as f:
+                data = f.read().decode('utf-8')
+            self.modules = data.splitlines()
+
+    def __repr__(self):
+        return '' % (
+            self.name, self.version, self.path)
+
+    def __str__(self):
+        return "%s %s" % (self.name, self.version)
+
+    def _get_records(self):
+        """
+        Get the list of installed files for the distribution
+        :return: A list of tuples of path, hash and size. Note that hash and
+                 size might be ``None`` for some entries. The path is exactly
+                 as stored in the file (which is as in PEP 376).
+        """
+        results = []
+        r = self.get_distinfo_resource('RECORD')
+        with contextlib.closing(r.as_stream()) as stream:
+            with CSVReader(stream=stream) as record_reader:
+                # Base location is parent dir of .dist-info dir
+                #base_location = os.path.dirname(self.path)
+                #base_location = os.path.abspath(base_location)
+                for row in record_reader:
+                    missing = [None for i in range(len(row), 3)]
+                    path, checksum, size = row + missing
+                    #if not os.path.isabs(path):
+                    #    path = path.replace('/', os.sep)
+                    #    path = os.path.join(base_location, path)
+                    results.append((path, checksum, size))
+        return results
+
+    @cached_property
+    def exports(self):
+        """
+        Return the information exported by this distribution.
+        :return: A dictionary of exports, mapping an export category to a dict
+                 of :class:`ExportEntry` instances describing the individual
+                 export entries, and keyed by name.
+        """
+        result = {}
+        r = self.get_distinfo_resource(EXPORTS_FILENAME)
+        if r:
+            result = self.read_exports()
+        return result
+
+    def read_exports(self):
+        """
+        Read exports data from a file in .ini format.
+
+        :return: A dictionary of exports, mapping an export category to a list
+                 of :class:`ExportEntry` instances describing the individual
+                 export entries.
+        """
+        result = {}
+        r = self.get_distinfo_resource(EXPORTS_FILENAME)
+        if r:
+            with contextlib.closing(r.as_stream()) as stream:
+                result = read_exports(stream)
+        return result
+
+    def write_exports(self, exports):
+        """
+        Write a dictionary of exports to a file in .ini format.
+        :param exports: A dictionary of exports, mapping an export category to
+                        a list of :class:`ExportEntry` instances describing the
+                        individual export entries.
+        """
+        rf = self.get_distinfo_file(EXPORTS_FILENAME)
+        with open(rf, 'w') as f:
+            write_exports(exports, f)
+
+    def get_resource_path(self, relative_path):
+        """
+        NOTE: This API may change in the future.
+
+        Return the absolute path to a resource file with the given relative
+        path.
+
+        :param relative_path: The path, relative to .dist-info, of the resource
+                              of interest.
+        :return: The absolute path where the resource is to be found.
+        """
+        r = self.get_distinfo_resource('RESOURCES')
+        with contextlib.closing(r.as_stream()) as stream:
+            with CSVReader(stream=stream) as resources_reader:
+                for relative, destination in resources_reader:
+                    if relative == relative_path:
+                        return destination
+        raise KeyError('no resource file with relative path %r '
+                       'is installed' % relative_path)
+
+    def list_installed_files(self):
+        """
+        Iterates over the ``RECORD`` entries and returns a tuple
+        ``(path, hash, size)`` for each line.
+
+        :returns: iterator of (path, hash, size)
+        """
+        for result in self._get_records():
+            yield result
+
+    def write_installed_files(self, paths, prefix, dry_run=False):
+        """
+        Writes the ``RECORD`` file, using the ``paths`` iterable passed in. Any
+        existing ``RECORD`` file is silently overwritten.
+
+        prefix is used to determine when to write absolute paths.
+        """
+        prefix = os.path.join(prefix, '')
+        base = os.path.dirname(self.path)
+        base_under_prefix = base.startswith(prefix)
+        base = os.path.join(base, '')
+        record_path = self.get_distinfo_file('RECORD')
+        logger.info('creating %s', record_path)
+        if dry_run:
+            return None
+        with CSVWriter(record_path) as writer:
+            for path in paths:
+                if os.path.isdir(path) or path.endswith(('.pyc', '.pyo')):
+                    # do not put size and hash, as in PEP-376
+                    hash_value = size = ''
+                else:
+                    size = '%d' % os.path.getsize(path)
+                    with open(path, 'rb') as fp:
+                        hash_value = self.get_hash(fp.read())
+                if path.startswith(base) or (base_under_prefix and
+                                             path.startswith(prefix)):
+                    path = os.path.relpath(path, base)
+                writer.writerow((path, hash_value, size))
+
+            # add the RECORD file itself
+            if record_path.startswith(base):
+                record_path = os.path.relpath(record_path, base)
+            writer.writerow((record_path, '', ''))
+        return record_path
+
+    def check_installed_files(self):
+        """
+        Checks that the hashes and sizes of the files in ``RECORD`` are
+        matched by the files themselves. Returns a (possibly empty) list of
+        mismatches. Each entry in the mismatch list will be a tuple consisting
+        of the path, 'exists', 'size' or 'hash' according to what didn't match
+        (existence is checked first, then size, then hash), the expected
+        value and the actual value.
+        """
+        mismatches = []
+        base = os.path.dirname(self.path)
+        record_path = self.get_distinfo_file('RECORD')
+        for path, hash_value, size in self.list_installed_files():
+            if not os.path.isabs(path):
+                path = os.path.join(base, path)
+            if path == record_path:
+                continue
+            if not os.path.exists(path):
+                mismatches.append((path, 'exists', True, False))
+            elif os.path.isfile(path):
+                actual_size = str(os.path.getsize(path))
+                if size and actual_size != size:
+                    mismatches.append((path, 'size', size, actual_size))
+                elif hash_value:
+                    if '=' in hash_value:
+                        hasher = hash_value.split('=', 1)[0]
+                    else:
+                        hasher = None
+
+                    with open(path, 'rb') as f:
+                        actual_hash = self.get_hash(f.read(), hasher)
+                        if actual_hash != hash_value:
+                            mismatches.append((path, 'hash', hash_value, actual_hash))
+        return mismatches
+
+    @cached_property
+    def shared_locations(self):
+        """
+        A dictionary of shared locations whose keys are in the set 'prefix',
+        'purelib', 'platlib', 'scripts', 'headers', 'data' and 'namespace'.
+        The corresponding value is the absolute path of that category for
+        this distribution, and takes into account any paths selected by the
+        user at installation time (e.g. via command-line arguments). In the
+        case of the 'namespace' key, this would be a list of absolute paths
+        for the roots of namespace packages in this distribution.
+
+        The first time this property is accessed, the relevant information is
+        read from the SHARED file in the .dist-info directory.
+        """
+        result = {}
+        shared_path = os.path.join(self.path, 'SHARED')
+        if os.path.isfile(shared_path):
+            with codecs.open(shared_path, 'r', encoding='utf-8') as f:
+                lines = f.read().splitlines()
+            for line in lines:
+                key, value = line.split('=', 1)
+                if key == 'namespace':
+                    result.setdefault(key, []).append(value)
+                else:
+                    result[key] = value
+        return result
+
+    def write_shared_locations(self, paths, dry_run=False):
+        """
+        Write shared location information to the SHARED file in .dist-info.
+        :param paths: A dictionary as described in the documentation for
+        :meth:`shared_locations`.
+        :param dry_run: If True, the action is logged but no file is actually
+                        written.
+        :return: The path of the file written to.
+        """
+        shared_path = os.path.join(self.path, 'SHARED')
+        logger.info('creating %s', shared_path)
+        if dry_run:
+            return None
+        lines = []
+        for key in ('prefix', 'lib', 'headers', 'scripts', 'data'):
+            path = paths[key]
+            if os.path.isdir(paths[key]):
+                lines.append('%s=%s' % (key,  path))
+        for ns in paths.get('namespace', ()):
+            lines.append('namespace=%s' % ns)
+
+        with codecs.open(shared_path, 'w', encoding='utf-8') as f:
+            f.write('\n'.join(lines))
+        return shared_path
+
+    def get_distinfo_resource(self, path):
+        if path not in DIST_FILES:
+            raise DistlibException('invalid path for a dist-info file: '
+                                   '%r at %r' % (path, self.path))
+        finder = resources.finder_for_path(self.path)
+        if finder is None:
+            raise DistlibException('Unable to get a finder for %s' % self.path)
+        return finder.find(path)
+
+    def get_distinfo_file(self, path):
+        """
+        Returns a path located under the ``.dist-info`` directory. Returns a
+        string representing the path.
+
+        :parameter path: a ``'/'``-separated path relative to the
+                         ``.dist-info`` directory or an absolute path;
+                         If *path* is an absolute path and doesn't start
+                         with the ``.dist-info`` directory path,
+                         a :class:`DistlibException` is raised
+        :type path: str
+        :rtype: str
+        """
+        # Check if it is an absolute path  # XXX use relpath, add tests
+        if path.find(os.sep) >= 0:
+            # it's an absolute path?
+            distinfo_dirname, path = path.split(os.sep)[-2:]
+            if distinfo_dirname != self.path.split(os.sep)[-1]:
+                raise DistlibException(
+                    'dist-info file %r does not belong to the %r %s '
+                    'distribution' % (path, self.name, self.version))
+
+        # The file must be relative
+        if path not in DIST_FILES:
+            raise DistlibException('invalid path for a dist-info file: '
+                                   '%r at %r' % (path, self.path))
+
+        return os.path.join(self.path, path)
+
+    def list_distinfo_files(self):
+        """
+        Iterates over the ``RECORD`` entries and returns paths for each line if
+        the path is pointing to a file located in the ``.dist-info`` directory
+        or one of its subdirectories.
+
+        :returns: iterator of paths
+        """
+        base = os.path.dirname(self.path)
+        for path, checksum, size in self._get_records():
+            # XXX add separator or use real relpath algo
+            if not os.path.isabs(path):
+                path = os.path.join(base, path)
+            if path.startswith(self.path):
+                yield path
+
+    def __eq__(self, other):
+        return (isinstance(other, InstalledDistribution) and
+                self.path == other.path)
+
+    # See http://docs.python.org/reference/datamodel#object.__hash__
+    __hash__ = object.__hash__
+
+
+class EggInfoDistribution(BaseInstalledDistribution):
+    """Created with the *path* of the ``.egg-info`` directory or file provided
+    to the constructor. It reads the metadata contained in the file itself, or
+    if the given path happens to be a directory, the metadata is read from the
+    file ``PKG-INFO`` under that directory."""
+
+    requested = True    # as we have no way of knowing, assume it was
+    shared_locations = {}
+
+    def __init__(self, path, env=None):
+        def set_name_and_version(s, n, v):
+            s.name = n
+            s.key = n.lower()   # for case-insensitive comparisons
+            s.version = v
+
+        self.path = path
+        self.dist_path = env
+        if env and env._cache_enabled and path in env._cache_egg.path:
+            metadata = env._cache_egg.path[path].metadata
+            set_name_and_version(self, metadata.name, metadata.version)
+        else:
+            metadata = self._get_metadata(path)
+
+            # Need to be set before caching
+            set_name_and_version(self, metadata.name, metadata.version)
+
+            if env and env._cache_enabled:
+                env._cache_egg.add(self)
+        super(EggInfoDistribution, self).__init__(metadata, path, env)
+
+    def _get_metadata(self, path):
+        requires = None
+
+        def parse_requires_data(data):
+            """Create a list of dependencies from a requires.txt file.
+
+            *data*: the contents of a setuptools-produced requires.txt file.
+            """
+            reqs = []
+            lines = data.splitlines()
+            for line in lines:
+                line = line.strip()
+                if line.startswith('['):
+                    logger.warning('Unexpected line: quitting requirement scan: %r',
+                                   line)
+                    break
+                r = parse_requirement(line)
+                if not r:
+                    logger.warning('Not recognised as a requirement: %r', line)
+                    continue
+                if r.extras:
+                    logger.warning('extra requirements in requires.txt are '
+                                   'not supported')
+                if not r.constraints:
+                    reqs.append(r.name)
+                else:
+                    cons = ', '.join('%s%s' % c for c in r.constraints)
+                    reqs.append('%s (%s)' % (r.name, cons))
+            return reqs
+
+        def parse_requires_path(req_path):
+            """Create a list of dependencies from a requires.txt file.
+
+            *req_path*: the path to a setuptools-produced requires.txt file.
+            """
+
+            reqs = []
+            try:
+                with codecs.open(req_path, 'r', 'utf-8') as fp:
+                    reqs = parse_requires_data(fp.read())
+            except IOError:
+                pass
+            return reqs
+
+        tl_path = tl_data = None
+        if path.endswith('.egg'):
+            if os.path.isdir(path):
+                p = os.path.join(path, 'EGG-INFO')
+                meta_path = os.path.join(p, 'PKG-INFO')
+                metadata = Metadata(path=meta_path, scheme='legacy')
+                req_path = os.path.join(p, 'requires.txt')
+                tl_path = os.path.join(p, 'top_level.txt')
+                requires = parse_requires_path(req_path)
+            else:
+                # FIXME handle the case where zipfile is not available
+                zipf = zipimport.zipimporter(path)
+                fileobj = StringIO(
+                    zipf.get_data('EGG-INFO/PKG-INFO').decode('utf8'))
+                metadata = Metadata(fileobj=fileobj, scheme='legacy')
+                try:
+                    data = zipf.get_data('EGG-INFO/requires.txt')
+                    tl_data = zipf.get_data('EGG-INFO/top_level.txt').decode('utf-8')
+                    requires = parse_requires_data(data.decode('utf-8'))
+                except IOError:
+                    requires = None
+        elif path.endswith('.egg-info'):
+            if os.path.isdir(path):
+                req_path = os.path.join(path, 'requires.txt')
+                requires = parse_requires_path(req_path)
+                path = os.path.join(path, 'PKG-INFO')
+                tl_path = os.path.join(path, 'top_level.txt')
+            metadata = Metadata(path=path, scheme='legacy')
+        else:
+            raise DistlibException('path must end with .egg-info or .egg, '
+                                   'got %r' % path)
+
+        if requires:
+            metadata.add_requirements(requires)
+        # look for top-level modules in top_level.txt, if present
+        if tl_data is None:
+            if tl_path is not None and os.path.exists(tl_path):
+                with open(tl_path, 'rb') as f:
+                    tl_data = f.read().decode('utf-8')
+        if not tl_data:
+            tl_data = []
+        else:
+            tl_data = tl_data.splitlines()
+        self.modules = tl_data
+        return metadata
+
+    def __repr__(self):
+        return '' % (
+            self.name, self.version, self.path)
+
+    def __str__(self):
+        return "%s %s" % (self.name, self.version)
+
+    def check_installed_files(self):
+        """
+        Checks that the hashes and sizes of the files in ``RECORD`` are
+        matched by the files themselves. Returns a (possibly empty) list of
+        mismatches. Each entry in the mismatch list will be a tuple consisting
+        of the path, 'exists', 'size' or 'hash' according to what didn't match
+        (existence is checked first, then size, then hash), the expected
+        value and the actual value.
+        """
+        mismatches = []
+        record_path = os.path.join(self.path, 'installed-files.txt')
+        if os.path.exists(record_path):
+            for path, _, _ in self.list_installed_files():
+                if path == record_path:
+                    continue
+                if not os.path.exists(path):
+                    mismatches.append((path, 'exists', True, False))
+        return mismatches
+
+    def list_installed_files(self):
+        """
+        Iterates over the ``installed-files.txt`` entries and returns a tuple
+        ``(path, hash, size)`` for each line.
+
+        :returns: a list of (path, hash, size)
+        """
+
+        def _md5(path):
+            f = open(path, 'rb')
+            try:
+                content = f.read()
+            finally:
+                f.close()
+            return hashlib.md5(content).hexdigest()
+
+        def _size(path):
+            return os.stat(path).st_size
+
+        record_path = os.path.join(self.path, 'installed-files.txt')
+        result = []
+        if os.path.exists(record_path):
+            with codecs.open(record_path, 'r', encoding='utf-8') as f:
+                for line in f:
+                    line = line.strip()
+                    p = os.path.normpath(os.path.join(self.path, line))
+                    # "./" is present as a marker between installed files
+                    # and installation metadata files
+                    if not os.path.exists(p):
+                        logger.warning('Non-existent file: %s', p)
+                        if p.endswith(('.pyc', '.pyo')):
+                            continue
+                        #otherwise fall through and fail
+                    if not os.path.isdir(p):
+                        result.append((p, _md5(p), _size(p)))
+            result.append((record_path, None, None))
+        return result
+
+    def list_distinfo_files(self, absolute=False):
+        """
+        Iterates over the ``installed-files.txt`` entries and returns paths for
+        each line if the path is pointing to a file located in the
+        ``.egg-info`` directory or one of its subdirectories.
+
+        :parameter absolute: If *absolute* is ``True``, each returned path is
+                          transformed into a local absolute path. Otherwise the
+                          raw value from ``installed-files.txt`` is returned.
+        :type absolute: boolean
+        :returns: iterator of paths
+        """
+        record_path = os.path.join(self.path, 'installed-files.txt')
+        if os.path.exists(record_path):
+            skip = True
+            with codecs.open(record_path, 'r', encoding='utf-8') as f:
+                for line in f:
+                    line = line.strip()
+                    if line == './':
+                        skip = False
+                        continue
+                    if not skip:
+                        p = os.path.normpath(os.path.join(self.path, line))
+                        if p.startswith(self.path):
+                            if absolute:
+                                yield p
+                            else:
+                                yield line
+
+    def __eq__(self, other):
+        return (isinstance(other, EggInfoDistribution) and
+                self.path == other.path)
+
+    # See http://docs.python.org/reference/datamodel#object.__hash__
+    __hash__ = object.__hash__
+
+new_dist_class = InstalledDistribution
+old_dist_class = EggInfoDistribution
+
+
+class DependencyGraph(object):
+    """
+    Represents a dependency graph between distributions.
+
+    The dependency relationships are stored in an ``adjacency_list`` that maps
+    distributions to a list of ``(other, label)`` tuples where  ``other``
+    is a distribution and the edge is labeled with ``label`` (i.e. the version
+    specifier, if such was provided). Also, for more efficient traversal, for
+    every distribution ``x``, a list of predecessors is kept in
+    ``reverse_list[x]``. An edge from distribution ``a`` to
+    distribution ``b`` means that ``a`` depends on ``b``. If any missing
+    dependencies are found, they are stored in ``missing``, which is a
+    dictionary that maps distributions to a list of requirements that were not
+    provided by any other distributions.
+    """
+
+    def __init__(self):
+        self.adjacency_list = {}
+        self.reverse_list = {}
+        self.missing = {}
+
+    def add_distribution(self, distribution):
+        """Add the *distribution* to the graph.
+
+        :type distribution: :class:`distutils2.database.InstalledDistribution`
+                            or :class:`distutils2.database.EggInfoDistribution`
+        """
+        self.adjacency_list[distribution] = []
+        self.reverse_list[distribution] = []
+        #self.missing[distribution] = []
+
+    def add_edge(self, x, y, label=None):
+        """Add an edge from distribution *x* to distribution *y* with the given
+        *label*.
+
+        :type x: :class:`distutils2.database.InstalledDistribution` or
+                 :class:`distutils2.database.EggInfoDistribution`
+        :type y: :class:`distutils2.database.InstalledDistribution` or
+                 :class:`distutils2.database.EggInfoDistribution`
+        :type label: ``str`` or ``None``
+        """
+        self.adjacency_list[x].append((y, label))
+        # multiple edges are allowed, so be careful
+        if x not in self.reverse_list[y]:
+            self.reverse_list[y].append(x)
+
+    def add_missing(self, distribution, requirement):
+        """
+        Add a missing *requirement* for the given *distribution*.
+
+        :type distribution: :class:`distutils2.database.InstalledDistribution`
+                            or :class:`distutils2.database.EggInfoDistribution`
+        :type requirement: ``str``
+        """
+        logger.debug('%s missing %r', distribution, requirement)
+        self.missing.setdefault(distribution, []).append(requirement)
+
+    def _repr_dist(self, dist):
+        return '%s %s' % (dist.name, dist.version)
+
+    def repr_node(self, dist, level=1):
+        """Prints only a subgraph"""
+        output = [self._repr_dist(dist)]
+        for other, label in self.adjacency_list[dist]:
+            dist = self._repr_dist(other)
+            if label is not None:
+                dist = '%s [%s]' % (dist, label)
+            output.append('    ' * level + str(dist))
+            suboutput = self.repr_node(other, level + 1)
+            subs = suboutput.split('\n')
+            output.extend(subs[1:])
+        return '\n'.join(output)
+
+    def to_dot(self, f, skip_disconnected=True):
+        """Writes a DOT output for the graph to the provided file *f*.
+
+        If *skip_disconnected* is set to ``True``, then all distributions
+        that are not dependent on any other distribution are skipped.
+
+        :type f: has to support ``file``-like operations
+        :type skip_disconnected: ``bool``
+        """
+        disconnected = []
+
+        f.write("digraph dependencies {\n")
+        for dist, adjs in self.adjacency_list.items():
+            if len(adjs) == 0 and not skip_disconnected:
+                disconnected.append(dist)
+            for other, label in adjs:
+                if not label is None:
+                    f.write('"%s" -> "%s" [label="%s"]\n' %
+                            (dist.name, other.name, label))
+                else:
+                    f.write('"%s" -> "%s"\n' % (dist.name, other.name))
+        if not skip_disconnected and len(disconnected) > 0:
+            f.write('subgraph disconnected {\n')
+            f.write('label = "Disconnected"\n')
+            f.write('bgcolor = red\n')
+
+            for dist in disconnected:
+                f.write('"%s"' % dist.name)
+                f.write('\n')
+            f.write('}\n')
+        f.write('}\n')
+
+    def topological_sort(self):
+        """
+        Perform a topological sort of the graph.
+        :return: A tuple, the first element of which is a topologically sorted
+                 list of distributions, and the second element of which is a
+                 list of distributions that cannot be sorted because they have
+                 circular dependencies and so form a cycle.
+        """
+        result = []
+        # Make a shallow copy of the adjacency list
+        alist = {}
+        for k, v in self.adjacency_list.items():
+            alist[k] = v[:]
+        while True:
+            # See what we can remove in this run
+            to_remove = []
+            for k, v in list(alist.items())[:]:
+                if not v:
+                    to_remove.append(k)
+                    del alist[k]
+            if not to_remove:
+                # What's left in alist (if anything) is a cycle.
+                break
+            # Remove from the adjacency list of others
+            for k, v in alist.items():
+                alist[k] = [(d, r) for d, r in v if d not in to_remove]
+            logger.debug('Moving to result: %s',
+                         ['%s (%s)' % (d.name, d.version) for d in to_remove])
+            result.extend(to_remove)
+        return result, list(alist.keys())
+
+    def __repr__(self):
+        """Representation of the graph"""
+        output = []
+        for dist, adjs in self.adjacency_list.items():
+            output.append(self.repr_node(dist))
+        return '\n'.join(output)
+
+
+def make_graph(dists, scheme='default'):
+    """Makes a dependency graph from the given distributions.
+
+    :parameter dists: a list of distributions
+    :type dists: list of :class:`distutils2.database.InstalledDistribution` and
+                 :class:`distutils2.database.EggInfoDistribution` instances
+    :rtype: a :class:`DependencyGraph` instance
+    """
+    scheme = get_scheme(scheme)
+    graph = DependencyGraph()
+    provided = {}  # maps names to lists of (version, dist) tuples
+
+    # first, build the graph and find out what's provided
+    for dist in dists:
+        graph.add_distribution(dist)
+
+        for p in dist.provides:
+            name, version = parse_name_and_version(p)
+            logger.debug('Add to provided: %s, %s, %s', name, version, dist)
+            provided.setdefault(name, []).append((version, dist))
+
+    # now make the edges
+    for dist in dists:
+        requires = (dist.run_requires | dist.meta_requires |
+                    dist.build_requires | dist.dev_requires)
+        for req in requires:
+            try:
+                matcher = scheme.matcher(req)
+            except UnsupportedVersionError:
+                # XXX compat-mode if cannot read the version
+                logger.warning('could not read version %r - using name only',
+                               req)
+                name = req.split()[0]
+                matcher = scheme.matcher(name)
+
+            name = matcher.key   # case-insensitive
+
+            matched = False
+            if name in provided:
+                for version, provider in provided[name]:
+                    try:
+                        match = matcher.match(version)
+                    except UnsupportedVersionError:
+                        match = False
+
+                    if match:
+                        graph.add_edge(dist, provider, req)
+                        matched = True
+                        break
+            if not matched:
+                graph.add_missing(dist, req)
+    return graph
+
+
+def get_dependent_dists(dists, dist):
+    """Recursively generate a list of distributions from *dists* that are
+    dependent on *dist*.
+
+    :param dists: a list of distributions
+    :param dist: a distribution, member of *dists* for which we are interested
+    """
+    if dist not in dists:
+        raise DistlibException('given distribution %r is not a member '
+                               'of the list' % dist.name)
+    graph = make_graph(dists)
+
+    dep = [dist]  # dependent distributions
+    todo = graph.reverse_list[dist]  # list of nodes we should inspect
+
+    while todo:
+        d = todo.pop()
+        dep.append(d)
+        for succ in graph.reverse_list[d]:
+            if succ not in dep:
+                todo.append(succ)
+
+    dep.pop(0)  # remove dist from dep, was there to prevent infinite loops
+    return dep
+
+
+def get_required_dists(dists, dist):
+    """Recursively generate a list of distributions from *dists* that are
+    required by *dist*.
+
+    :param dists: a list of distributions
+    :param dist: a distribution, member of *dists* for which we are interested
+    """
+    if dist not in dists:
+        raise DistlibException('given distribution %r is not a member '
+                               'of the list' % dist.name)
+    graph = make_graph(dists)
+
+    req = []  # required distributions
+    todo = graph.adjacency_list[dist]  # list of nodes we should inspect
+
+    while todo:
+        d = todo.pop()[0]
+        req.append(d)
+        for pred in graph.adjacency_list[d]:
+            if pred not in req:
+                todo.append(pred)
+
+    return req
+
+
+def make_dist(name, version, **kwargs):
+    """
+    A convenience method for making a dist given just a name and version.
+    """
+    summary = kwargs.pop('summary', 'Placeholder for summary')
+    md = Metadata(**kwargs)
+    md.name = name
+    md.version = version
+    md.summary = summary or 'Placeholder for summary'
+    return Distribution(md)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/index.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/index.py
new file mode 100644
index 0000000..b1fbbf8
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/index.py
@@ -0,0 +1,509 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+import hashlib
+import logging
+import os
+import shutil
+import subprocess
+import tempfile
+try:
+    from threading import Thread
+except ImportError:
+    from dummy_threading import Thread
+
+from . import DistlibException
+from .compat import (HTTPBasicAuthHandler, Request, HTTPPasswordMgr,
+                     urlparse, build_opener, string_types)
+from .util import zip_dir, ServerProxy
+
+logger = logging.getLogger(__name__)
+
+DEFAULT_INDEX = 'https://pypi.org/pypi'
+DEFAULT_REALM = 'pypi'
+
+class PackageIndex(object):
+    """
+    This class represents a package index compatible with PyPI, the Python
+    Package Index.
+    """
+
+    boundary = b'----------ThIs_Is_tHe_distlib_index_bouNdaRY_$'
+
+    def __init__(self, url=None):
+        """
+        Initialise an instance.
+
+        :param url: The URL of the index. If not specified, the URL for PyPI is
+                    used.
+        """
+        self.url = url or DEFAULT_INDEX
+        self.read_configuration()
+        scheme, netloc, path, params, query, frag = urlparse(self.url)
+        if params or query or frag or scheme not in ('http', 'https'):
+            raise DistlibException('invalid repository: %s' % self.url)
+        self.password_handler = None
+        self.ssl_verifier = None
+        self.gpg = None
+        self.gpg_home = None
+        with open(os.devnull, 'w') as sink:
+            # Use gpg by default rather than gpg2, as gpg2 insists on
+            # prompting for passwords
+            for s in ('gpg', 'gpg2'):
+                try:
+                    rc = subprocess.check_call([s, '--version'], stdout=sink,
+                                               stderr=sink)
+                    if rc == 0:
+                        self.gpg = s
+                        break
+                except OSError:
+                    pass
+
+    def _get_pypirc_command(self):
+        """
+        Get the distutils command for interacting with PyPI configurations.
+        :return: the command.
+        """
+        from .util import _get_pypirc_command as cmd
+        return cmd()
+
+    def read_configuration(self):
+        """
+        Read the PyPI access configuration as supported by distutils. This populates
+        ``username``, ``password``, ``realm`` and ``url`` attributes from the
+        configuration.
+        """
+        from .util import _load_pypirc
+        cfg = _load_pypirc(self)
+        self.username = cfg.get('username')
+        self.password = cfg.get('password')
+        self.realm = cfg.get('realm', 'pypi')
+        self.url = cfg.get('repository', self.url)
+
+    def save_configuration(self):
+        """
+        Save the PyPI access configuration. You must have set ``username`` and
+        ``password`` attributes before calling this method.
+        """
+        self.check_credentials()
+        from .util import _store_pypirc
+        _store_pypirc(self)
+
+    def check_credentials(self):
+        """
+        Check that ``username`` and ``password`` have been set, and raise an
+        exception if not.
+        """
+        if self.username is None or self.password is None:
+            raise DistlibException('username and password must be set')
+        pm = HTTPPasswordMgr()
+        _, netloc, _, _, _, _ = urlparse(self.url)
+        pm.add_password(self.realm, netloc, self.username, self.password)
+        self.password_handler = HTTPBasicAuthHandler(pm)
+
+    def register(self, metadata):
+        """
+        Register a distribution on PyPI, using the provided metadata.
+
+        :param metadata: A :class:`Metadata` instance defining at least a name
+                         and version number for the distribution to be
+                         registered.
+        :return: The HTTP response received from PyPI upon submission of the
+                request.
+        """
+        self.check_credentials()
+        metadata.validate()
+        d = metadata.todict()
+        d[':action'] = 'verify'
+        request = self.encode_request(d.items(), [])
+        response = self.send_request(request)
+        d[':action'] = 'submit'
+        request = self.encode_request(d.items(), [])
+        return self.send_request(request)
+
+    def _reader(self, name, stream, outbuf):
+        """
+        Thread runner for reading lines of from a subprocess into a buffer.
+
+        :param name: The logical name of the stream (used for logging only).
+        :param stream: The stream to read from. This will typically a pipe
+                       connected to the output stream of a subprocess.
+        :param outbuf: The list to append the read lines to.
+        """
+        while True:
+            s = stream.readline()
+            if not s:
+                break
+            s = s.decode('utf-8').rstrip()
+            outbuf.append(s)
+            logger.debug('%s: %s' % (name, s))
+        stream.close()
+
+    def get_sign_command(self, filename, signer, sign_password,
+                         keystore=None):
+        """
+        Return a suitable command for signing a file.
+
+        :param filename: The pathname to the file to be signed.
+        :param signer: The identifier of the signer of the file.
+        :param sign_password: The passphrase for the signer's
+                              private key used for signing.
+        :param keystore: The path to a directory which contains the keys
+                         used in verification. If not specified, the
+                         instance's ``gpg_home`` attribute is used instead.
+        :return: The signing command as a list suitable to be
+                 passed to :class:`subprocess.Popen`.
+        """
+        cmd = [self.gpg, '--status-fd', '2', '--no-tty']
+        if keystore is None:
+            keystore = self.gpg_home
+        if keystore:
+            cmd.extend(['--homedir', keystore])
+        if sign_password is not None:
+            cmd.extend(['--batch', '--passphrase-fd', '0'])
+        td = tempfile.mkdtemp()
+        sf = os.path.join(td, os.path.basename(filename) + '.asc')
+        cmd.extend(['--detach-sign', '--armor', '--local-user',
+                    signer, '--output', sf, filename])
+        logger.debug('invoking: %s', ' '.join(cmd))
+        return cmd, sf
+
+    def run_command(self, cmd, input_data=None):
+        """
+        Run a command in a child process , passing it any input data specified.
+
+        :param cmd: The command to run.
+        :param input_data: If specified, this must be a byte string containing
+                           data to be sent to the child process.
+        :return: A tuple consisting of the subprocess' exit code, a list of
+                 lines read from the subprocess' ``stdout``, and a list of
+                 lines read from the subprocess' ``stderr``.
+        """
+        kwargs = {
+            'stdout': subprocess.PIPE,
+            'stderr': subprocess.PIPE,
+        }
+        if input_data is not None:
+            kwargs['stdin'] = subprocess.PIPE
+        stdout = []
+        stderr = []
+        p = subprocess.Popen(cmd, **kwargs)
+        # We don't use communicate() here because we may need to
+        # get clever with interacting with the command
+        t1 = Thread(target=self._reader, args=('stdout', p.stdout, stdout))
+        t1.start()
+        t2 = Thread(target=self._reader, args=('stderr', p.stderr, stderr))
+        t2.start()
+        if input_data is not None:
+            p.stdin.write(input_data)
+            p.stdin.close()
+
+        p.wait()
+        t1.join()
+        t2.join()
+        return p.returncode, stdout, stderr
+
+    def sign_file(self, filename, signer, sign_password, keystore=None):
+        """
+        Sign a file.
+
+        :param filename: The pathname to the file to be signed.
+        :param signer: The identifier of the signer of the file.
+        :param sign_password: The passphrase for the signer's
+                              private key used for signing.
+        :param keystore: The path to a directory which contains the keys
+                         used in signing. If not specified, the instance's
+                         ``gpg_home`` attribute is used instead.
+        :return: The absolute pathname of the file where the signature is
+                 stored.
+        """
+        cmd, sig_file = self.get_sign_command(filename, signer, sign_password,
+                                              keystore)
+        rc, stdout, stderr = self.run_command(cmd,
+                                              sign_password.encode('utf-8'))
+        if rc != 0:
+            raise DistlibException('sign command failed with error '
+                                   'code %s' % rc)
+        return sig_file
+
+    def upload_file(self, metadata, filename, signer=None, sign_password=None,
+                    filetype='sdist', pyversion='source', keystore=None):
+        """
+        Upload a release file to the index.
+
+        :param metadata: A :class:`Metadata` instance defining at least a name
+                         and version number for the file to be uploaded.
+        :param filename: The pathname of the file to be uploaded.
+        :param signer: The identifier of the signer of the file.
+        :param sign_password: The passphrase for the signer's
+                              private key used for signing.
+        :param filetype: The type of the file being uploaded. This is the
+                        distutils command which produced that file, e.g.
+                        ``sdist`` or ``bdist_wheel``.
+        :param pyversion: The version of Python which the release relates
+                          to. For code compatible with any Python, this would
+                          be ``source``, otherwise it would be e.g. ``3.2``.
+        :param keystore: The path to a directory which contains the keys
+                         used in signing. If not specified, the instance's
+                         ``gpg_home`` attribute is used instead.
+        :return: The HTTP response received from PyPI upon submission of the
+                request.
+        """
+        self.check_credentials()
+        if not os.path.exists(filename):
+            raise DistlibException('not found: %s' % filename)
+        metadata.validate()
+        d = metadata.todict()
+        sig_file = None
+        if signer:
+            if not self.gpg:
+                logger.warning('no signing program available - not signed')
+            else:
+                sig_file = self.sign_file(filename, signer, sign_password,
+                                          keystore)
+        with open(filename, 'rb') as f:
+            file_data = f.read()
+        md5_digest = hashlib.md5(file_data).hexdigest()
+        sha256_digest = hashlib.sha256(file_data).hexdigest()
+        d.update({
+            ':action': 'file_upload',
+            'protocol_version': '1',
+            'filetype': filetype,
+            'pyversion': pyversion,
+            'md5_digest': md5_digest,
+            'sha256_digest': sha256_digest,
+        })
+        files = [('content', os.path.basename(filename), file_data)]
+        if sig_file:
+            with open(sig_file, 'rb') as f:
+                sig_data = f.read()
+            files.append(('gpg_signature', os.path.basename(sig_file),
+                         sig_data))
+            shutil.rmtree(os.path.dirname(sig_file))
+        request = self.encode_request(d.items(), files)
+        return self.send_request(request)
+
+    def upload_documentation(self, metadata, doc_dir):
+        """
+        Upload documentation to the index.
+
+        :param metadata: A :class:`Metadata` instance defining at least a name
+                         and version number for the documentation to be
+                         uploaded.
+        :param doc_dir: The pathname of the directory which contains the
+                        documentation. This should be the directory that
+                        contains the ``index.html`` for the documentation.
+        :return: The HTTP response received from PyPI upon submission of the
+                request.
+        """
+        self.check_credentials()
+        if not os.path.isdir(doc_dir):
+            raise DistlibException('not a directory: %r' % doc_dir)
+        fn = os.path.join(doc_dir, 'index.html')
+        if not os.path.exists(fn):
+            raise DistlibException('not found: %r' % fn)
+        metadata.validate()
+        name, version = metadata.name, metadata.version
+        zip_data = zip_dir(doc_dir).getvalue()
+        fields = [(':action', 'doc_upload'),
+                  ('name', name), ('version', version)]
+        files = [('content', name, zip_data)]
+        request = self.encode_request(fields, files)
+        return self.send_request(request)
+
+    def get_verify_command(self, signature_filename, data_filename,
+                           keystore=None):
+        """
+        Return a suitable command for verifying a file.
+
+        :param signature_filename: The pathname to the file containing the
+                                   signature.
+        :param data_filename: The pathname to the file containing the
+                              signed data.
+        :param keystore: The path to a directory which contains the keys
+                         used in verification. If not specified, the
+                         instance's ``gpg_home`` attribute is used instead.
+        :return: The verifying command as a list suitable to be
+                 passed to :class:`subprocess.Popen`.
+        """
+        cmd = [self.gpg, '--status-fd', '2', '--no-tty']
+        if keystore is None:
+            keystore = self.gpg_home
+        if keystore:
+            cmd.extend(['--homedir', keystore])
+        cmd.extend(['--verify', signature_filename, data_filename])
+        logger.debug('invoking: %s', ' '.join(cmd))
+        return cmd
+
+    def verify_signature(self, signature_filename, data_filename,
+                         keystore=None):
+        """
+        Verify a signature for a file.
+
+        :param signature_filename: The pathname to the file containing the
+                                   signature.
+        :param data_filename: The pathname to the file containing the
+                              signed data.
+        :param keystore: The path to a directory which contains the keys
+                         used in verification. If not specified, the
+                         instance's ``gpg_home`` attribute is used instead.
+        :return: True if the signature was verified, else False.
+        """
+        if not self.gpg:
+            raise DistlibException('verification unavailable because gpg '
+                                   'unavailable')
+        cmd = self.get_verify_command(signature_filename, data_filename,
+                                      keystore)
+        rc, stdout, stderr = self.run_command(cmd)
+        if rc not in (0, 1):
+            raise DistlibException('verify command failed with error '
+                             'code %s' % rc)
+        return rc == 0
+
+    def download_file(self, url, destfile, digest=None, reporthook=None):
+        """
+        This is a convenience method for downloading a file from an URL.
+        Normally, this will be a file from the index, though currently
+        no check is made for this (i.e. a file can be downloaded from
+        anywhere).
+
+        The method is just like the :func:`urlretrieve` function in the
+        standard library, except that it allows digest computation to be
+        done during download and checking that the downloaded data
+        matched any expected value.
+
+        :param url: The URL of the file to be downloaded (assumed to be
+                    available via an HTTP GET request).
+        :param destfile: The pathname where the downloaded file is to be
+                         saved.
+        :param digest: If specified, this must be a (hasher, value)
+                       tuple, where hasher is the algorithm used (e.g.
+                       ``'md5'``) and ``value`` is the expected value.
+        :param reporthook: The same as for :func:`urlretrieve` in the
+                           standard library.
+        """
+        if digest is None:
+            digester = None
+            logger.debug('No digest specified')
+        else:
+            if isinstance(digest, (list, tuple)):
+                hasher, digest = digest
+            else:
+                hasher = 'md5'
+            digester = getattr(hashlib, hasher)()
+            logger.debug('Digest specified: %s' % digest)
+        # The following code is equivalent to urlretrieve.
+        # We need to do it this way so that we can compute the
+        # digest of the file as we go.
+        with open(destfile, 'wb') as dfp:
+            # addinfourl is not a context manager on 2.x
+            # so we have to use try/finally
+            sfp = self.send_request(Request(url))
+            try:
+                headers = sfp.info()
+                blocksize = 8192
+                size = -1
+                read = 0
+                blocknum = 0
+                if "content-length" in headers:
+                    size = int(headers["Content-Length"])
+                if reporthook:
+                    reporthook(blocknum, blocksize, size)
+                while True:
+                    block = sfp.read(blocksize)
+                    if not block:
+                        break
+                    read += len(block)
+                    dfp.write(block)
+                    if digester:
+                        digester.update(block)
+                    blocknum += 1
+                    if reporthook:
+                        reporthook(blocknum, blocksize, size)
+            finally:
+                sfp.close()
+
+        # check that we got the whole file, if we can
+        if size >= 0 and read < size:
+            raise DistlibException(
+                'retrieval incomplete: got only %d out of %d bytes'
+                % (read, size))
+        # if we have a digest, it must match.
+        if digester:
+            actual = digester.hexdigest()
+            if digest != actual:
+                raise DistlibException('%s digest mismatch for %s: expected '
+                                       '%s, got %s' % (hasher, destfile,
+                                                       digest, actual))
+            logger.debug('Digest verified: %s', digest)
+
+    def send_request(self, req):
+        """
+        Send a standard library :class:`Request` to PyPI and return its
+        response.
+
+        :param req: The request to send.
+        :return: The HTTP response from PyPI (a standard library HTTPResponse).
+        """
+        handlers = []
+        if self.password_handler:
+            handlers.append(self.password_handler)
+        if self.ssl_verifier:
+            handlers.append(self.ssl_verifier)
+        opener = build_opener(*handlers)
+        return opener.open(req)
+
+    def encode_request(self, fields, files):
+        """
+        Encode fields and files for posting to an HTTP server.
+
+        :param fields: The fields to send as a list of (fieldname, value)
+                       tuples.
+        :param files: The files to send as a list of (fieldname, filename,
+                      file_bytes) tuple.
+        """
+        # Adapted from packaging, which in turn was adapted from
+        # http://code.activestate.com/recipes/146306
+
+        parts = []
+        boundary = self.boundary
+        for k, values in fields:
+            if not isinstance(values, (list, tuple)):
+                values = [values]
+
+            for v in values:
+                parts.extend((
+                    b'--' + boundary,
+                    ('Content-Disposition: form-data; name="%s"' %
+                     k).encode('utf-8'),
+                    b'',
+                    v.encode('utf-8')))
+        for key, filename, value in files:
+            parts.extend((
+                b'--' + boundary,
+                ('Content-Disposition: form-data; name="%s"; filename="%s"' %
+                 (key, filename)).encode('utf-8'),
+                b'',
+                value))
+
+        parts.extend((b'--' + boundary + b'--', b''))
+
+        body = b'\r\n'.join(parts)
+        ct = b'multipart/form-data; boundary=' + boundary
+        headers = {
+            'Content-type': ct,
+            'Content-length': str(len(body))
+        }
+        return Request(self.url, body, headers)
+
+    def search(self, terms, operator=None):
+        if isinstance(terms, string_types):
+            terms = {'name': terms}
+        rpc_proxy = ServerProxy(self.url, timeout=3.0)
+        try:
+            return rpc_proxy.search(terms, operator or 'and')
+        finally:
+            rpc_proxy('close')()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/locators.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/locators.py
new file mode 100644
index 0000000..0c7d639
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/locators.py
@@ -0,0 +1,1300 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2015 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+
+import gzip
+from io import BytesIO
+import json
+import logging
+import os
+import posixpath
+import re
+try:
+    import threading
+except ImportError:  # pragma: no cover
+    import dummy_threading as threading
+import zlib
+
+from . import DistlibException
+from .compat import (urljoin, urlparse, urlunparse, url2pathname, pathname2url,
+                     queue, quote, unescape, build_opener,
+                     HTTPRedirectHandler as BaseRedirectHandler, text_type,
+                     Request, HTTPError, URLError)
+from .database import Distribution, DistributionPath, make_dist
+from .metadata import Metadata, MetadataInvalidError
+from .util import (cached_property, ensure_slash, split_filename, get_project_data,
+                   parse_requirement, parse_name_and_version, ServerProxy,
+                   normalize_name)
+from .version import get_scheme, UnsupportedVersionError
+from .wheel import Wheel, is_compatible
+
+logger = logging.getLogger(__name__)
+
+HASHER_HASH = re.compile(r'^(\w+)=([a-f0-9]+)')
+CHARSET = re.compile(r';\s*charset\s*=\s*(.*)\s*$', re.I)
+HTML_CONTENT_TYPE = re.compile('text/html|application/x(ht)?ml')
+DEFAULT_INDEX = 'https://pypi.org/pypi'
+
+def get_all_distribution_names(url=None):
+    """
+    Return all distribution names known by an index.
+    :param url: The URL of the index.
+    :return: A list of all known distribution names.
+    """
+    if url is None:
+        url = DEFAULT_INDEX
+    client = ServerProxy(url, timeout=3.0)
+    try:
+        return client.list_packages()
+    finally:
+        client('close')()
+
+class RedirectHandler(BaseRedirectHandler):
+    """
+    A class to work around a bug in some Python 3.2.x releases.
+    """
+    # There's a bug in the base version for some 3.2.x
+    # (e.g. 3.2.2 on Ubuntu Oneiric). If a Location header
+    # returns e.g. /abc, it bails because it says the scheme ''
+    # is bogus, when actually it should use the request's
+    # URL for the scheme. See Python issue #13696.
+    def http_error_302(self, req, fp, code, msg, headers):
+        # Some servers (incorrectly) return multiple Location headers
+        # (so probably same goes for URI).  Use first header.
+        newurl = None
+        for key in ('location', 'uri'):
+            if key in headers:
+                newurl = headers[key]
+                break
+        if newurl is None:  # pragma: no cover
+            return
+        urlparts = urlparse(newurl)
+        if urlparts.scheme == '':
+            newurl = urljoin(req.get_full_url(), newurl)
+            if hasattr(headers, 'replace_header'):
+                headers.replace_header(key, newurl)
+            else:
+                headers[key] = newurl
+        return BaseRedirectHandler.http_error_302(self, req, fp, code, msg,
+                                                  headers)
+
+    http_error_301 = http_error_303 = http_error_307 = http_error_302
+
+class Locator(object):
+    """
+    A base class for locators - things that locate distributions.
+    """
+    source_extensions = ('.tar.gz', '.tar.bz2', '.tar', '.zip', '.tgz', '.tbz')
+    binary_extensions = ('.egg', '.exe', '.whl')
+    excluded_extensions = ('.pdf',)
+
+    # A list of tags indicating which wheels you want to match. The default
+    # value of None matches against the tags compatible with the running
+    # Python. If you want to match other values, set wheel_tags on a locator
+    # instance to a list of tuples (pyver, abi, arch) which you want to match.
+    wheel_tags = None
+
+    downloadable_extensions = source_extensions + ('.whl',)
+
+    def __init__(self, scheme='default'):
+        """
+        Initialise an instance.
+        :param scheme: Because locators look for most recent versions, they
+                       need to know the version scheme to use. This specifies
+                       the current PEP-recommended scheme - use ``'legacy'``
+                       if you need to support existing distributions on PyPI.
+        """
+        self._cache = {}
+        self.scheme = scheme
+        # Because of bugs in some of the handlers on some of the platforms,
+        # we use our own opener rather than just using urlopen.
+        self.opener = build_opener(RedirectHandler())
+        # If get_project() is called from locate(), the matcher instance
+        # is set from the requirement passed to locate(). See issue #18 for
+        # why this can be useful to know.
+        self.matcher = None
+        self.errors = queue.Queue()
+
+    def get_errors(self):
+        """
+        Return any errors which have occurred.
+        """
+        result = []
+        while not self.errors.empty():  # pragma: no cover
+            try:
+                e = self.errors.get(False)
+                result.append(e)
+            except self.errors.Empty:
+                continue
+            self.errors.task_done()
+        return result
+
+    def clear_errors(self):
+        """
+        Clear any errors which may have been logged.
+        """
+        # Just get the errors and throw them away
+        self.get_errors()
+
+    def clear_cache(self):
+        self._cache.clear()
+
+    def _get_scheme(self):
+        return self._scheme
+
+    def _set_scheme(self, value):
+        self._scheme = value
+
+    scheme = property(_get_scheme, _set_scheme)
+
+    def _get_project(self, name):
+        """
+        For a given project, get a dictionary mapping available versions to Distribution
+        instances.
+
+        This should be implemented in subclasses.
+
+        If called from a locate() request, self.matcher will be set to a
+        matcher for the requirement to satisfy, otherwise it will be None.
+        """
+        raise NotImplementedError('Please implement in the subclass')
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        raise NotImplementedError('Please implement in the subclass')
+
+    def get_project(self, name):
+        """
+        For a given project, get a dictionary mapping available versions to Distribution
+        instances.
+
+        This calls _get_project to do all the work, and just implements a caching layer on top.
+        """
+        if self._cache is None:  # pragma: no cover
+            result = self._get_project(name)
+        elif name in self._cache:
+            result = self._cache[name]
+        else:
+            self.clear_errors()
+            result = self._get_project(name)
+            self._cache[name] = result
+        return result
+
+    def score_url(self, url):
+        """
+        Give an url a score which can be used to choose preferred URLs
+        for a given project release.
+        """
+        t = urlparse(url)
+        basename = posixpath.basename(t.path)
+        compatible = True
+        is_wheel = basename.endswith('.whl')
+        is_downloadable = basename.endswith(self.downloadable_extensions)
+        if is_wheel:
+            compatible = is_compatible(Wheel(basename), self.wheel_tags)
+        return (t.scheme == 'https', 'pypi.org' in t.netloc,
+                is_downloadable, is_wheel, compatible, basename)
+
+    def prefer_url(self, url1, url2):
+        """
+        Choose one of two URLs where both are candidates for distribution
+        archives for the same version of a distribution (for example,
+        .tar.gz vs. zip).
+
+        The current implementation favours https:// URLs over http://, archives
+        from PyPI over those from other locations, wheel compatibility (if a
+        wheel) and then the archive name.
+        """
+        result = url2
+        if url1:
+            s1 = self.score_url(url1)
+            s2 = self.score_url(url2)
+            if s1 > s2:
+                result = url1
+            if result != url2:
+                logger.debug('Not replacing %r with %r', url1, url2)
+            else:
+                logger.debug('Replacing %r with %r', url1, url2)
+        return result
+
+    def split_filename(self, filename, project_name):
+        """
+        Attempt to split a filename in project name, version and Python version.
+        """
+        return split_filename(filename, project_name)
+
+    def convert_url_to_download_info(self, url, project_name):
+        """
+        See if a URL is a candidate for a download URL for a project (the URL
+        has typically been scraped from an HTML page).
+
+        If it is, a dictionary is returned with keys "name", "version",
+        "filename" and "url"; otherwise, None is returned.
+        """
+        def same_project(name1, name2):
+            return normalize_name(name1) == normalize_name(name2)
+
+        result = None
+        scheme, netloc, path, params, query, frag = urlparse(url)
+        if frag.lower().startswith('egg='):  # pragma: no cover
+            logger.debug('%s: version hint in fragment: %r',
+                         project_name, frag)
+        m = HASHER_HASH.match(frag)
+        if m:
+            algo, digest = m.groups()
+        else:
+            algo, digest = None, None
+        origpath = path
+        if path and path[-1] == '/':  # pragma: no cover
+            path = path[:-1]
+        if path.endswith('.whl'):
+            try:
+                wheel = Wheel(path)
+                if not is_compatible(wheel, self.wheel_tags):
+                    logger.debug('Wheel not compatible: %s', path)
+                else:
+                    if project_name is None:
+                        include = True
+                    else:
+                        include = same_project(wheel.name, project_name)
+                    if include:
+                        result = {
+                            'name': wheel.name,
+                            'version': wheel.version,
+                            'filename': wheel.filename,
+                            'url': urlunparse((scheme, netloc, origpath,
+                                               params, query, '')),
+                            'python-version': ', '.join(
+                                ['.'.join(list(v[2:])) for v in wheel.pyver]),
+                        }
+            except Exception as e:  # pragma: no cover
+                logger.warning('invalid path for wheel: %s', path)
+        elif not path.endswith(self.downloadable_extensions):  # pragma: no cover
+            logger.debug('Not downloadable: %s', path)
+        else:  # downloadable extension
+            path = filename = posixpath.basename(path)
+            for ext in self.downloadable_extensions:
+                if path.endswith(ext):
+                    path = path[:-len(ext)]
+                    t = self.split_filename(path, project_name)
+                    if not t:  # pragma: no cover
+                        logger.debug('No match for project/version: %s', path)
+                    else:
+                        name, version, pyver = t
+                        if not project_name or same_project(project_name, name):
+                            result = {
+                                'name': name,
+                                'version': version,
+                                'filename': filename,
+                                'url': urlunparse((scheme, netloc, origpath,
+                                                   params, query, '')),
+                                #'packagetype': 'sdist',
+                            }
+                            if pyver:  # pragma: no cover
+                                result['python-version'] = pyver
+                    break
+        if result and algo:
+            result['%s_digest' % algo] = digest
+        return result
+
+    def _get_digest(self, info):
+        """
+        Get a digest from a dictionary by looking at a "digests" dictionary
+        or keys of the form 'algo_digest'.
+
+        Returns a 2-tuple (algo, digest) if found, else None. Currently
+        looks only for SHA256, then MD5.
+        """
+        result = None
+        if 'digests' in info:
+            digests = info['digests']
+            for algo in ('sha256', 'md5'):
+                if algo in digests:
+                    result = (algo, digests[algo])
+                    break
+        if not result:
+            for algo in ('sha256', 'md5'):
+                key = '%s_digest' % algo
+                if key in info:
+                    result = (algo, info[key])
+                    break
+        return result
+
+    def _update_version_data(self, result, info):
+        """
+        Update a result dictionary (the final result from _get_project) with a
+        dictionary for a specific version, which typically holds information
+        gleaned from a filename or URL for an archive for the distribution.
+        """
+        name = info.pop('name')
+        version = info.pop('version')
+        if version in result:
+            dist = result[version]
+            md = dist.metadata
+        else:
+            dist = make_dist(name, version, scheme=self.scheme)
+            md = dist.metadata
+        dist.digest = digest = self._get_digest(info)
+        url = info['url']
+        result['digests'][url] = digest
+        if md.source_url != info['url']:
+            md.source_url = self.prefer_url(md.source_url, url)
+            result['urls'].setdefault(version, set()).add(url)
+        dist.locator = self
+        result[version] = dist
+
+    def locate(self, requirement, prereleases=False):
+        """
+        Find the most recent distribution which matches the given
+        requirement.
+
+        :param requirement: A requirement of the form 'foo (1.0)' or perhaps
+                            'foo (>= 1.0, < 2.0, != 1.3)'
+        :param prereleases: If ``True``, allow pre-release versions
+                            to be located. Otherwise, pre-release versions
+                            are not returned.
+        :return: A :class:`Distribution` instance, or ``None`` if no such
+                 distribution could be located.
+        """
+        result = None
+        r = parse_requirement(requirement)
+        if r is None:  # pragma: no cover
+            raise DistlibException('Not a valid requirement: %r' % requirement)
+        scheme = get_scheme(self.scheme)
+        self.matcher = matcher = scheme.matcher(r.requirement)
+        logger.debug('matcher: %s (%s)', matcher, type(matcher).__name__)
+        versions = self.get_project(r.name)
+        if len(versions) > 2:   # urls and digests keys are present
+            # sometimes, versions are invalid
+            slist = []
+            vcls = matcher.version_class
+            for k in versions:
+                if k in ('urls', 'digests'):
+                    continue
+                try:
+                    if not matcher.match(k):
+                        pass  # logger.debug('%s did not match %r', matcher, k)
+                    else:
+                        if prereleases or not vcls(k).is_prerelease:
+                            slist.append(k)
+                        # else:
+                            # logger.debug('skipping pre-release '
+                                         # 'version %s of %s', k, matcher.name)
+                except Exception:  # pragma: no cover
+                    logger.warning('error matching %s with %r', matcher, k)
+                    pass # slist.append(k)
+            if len(slist) > 1:
+                slist = sorted(slist, key=scheme.key)
+            if slist:
+                logger.debug('sorted list: %s', slist)
+                version = slist[-1]
+                result = versions[version]
+        if result:
+            if r.extras:
+                result.extras = r.extras
+            result.download_urls = versions.get('urls', {}).get(version, set())
+            d = {}
+            sd = versions.get('digests', {})
+            for url in result.download_urls:
+                if url in sd:  # pragma: no cover
+                    d[url] = sd[url]
+            result.digests = d
+        self.matcher = None
+        return result
+
+
+class PyPIRPCLocator(Locator):
+    """
+    This locator uses XML-RPC to locate distributions. It therefore
+    cannot be used with simple mirrors (that only mirror file content).
+    """
+    def __init__(self, url, **kwargs):
+        """
+        Initialise an instance.
+
+        :param url: The URL to use for XML-RPC.
+        :param kwargs: Passed to the superclass constructor.
+        """
+        super(PyPIRPCLocator, self).__init__(**kwargs)
+        self.base_url = url
+        self.client = ServerProxy(url, timeout=3.0)
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        return set(self.client.list_packages())
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        versions = self.client.package_releases(name, True)
+        for v in versions:
+            urls = self.client.release_urls(name, v)
+            data = self.client.release_data(name, v)
+            metadata = Metadata(scheme=self.scheme)
+            metadata.name = data['name']
+            metadata.version = data['version']
+            metadata.license = data.get('license')
+            metadata.keywords = data.get('keywords', [])
+            metadata.summary = data.get('summary')
+            dist = Distribution(metadata)
+            if urls:
+                info = urls[0]
+                metadata.source_url = info['url']
+                dist.digest = self._get_digest(info)
+                dist.locator = self
+                result[v] = dist
+                for info in urls:
+                    url = info['url']
+                    digest = self._get_digest(info)
+                    result['urls'].setdefault(v, set()).add(url)
+                    result['digests'][url] = digest
+        return result
+
+class PyPIJSONLocator(Locator):
+    """
+    This locator uses PyPI's JSON interface. It's very limited in functionality
+    and probably not worth using.
+    """
+    def __init__(self, url, **kwargs):
+        super(PyPIJSONLocator, self).__init__(**kwargs)
+        self.base_url = ensure_slash(url)
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        raise NotImplementedError('Not available from this locator')
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        url = urljoin(self.base_url, '%s/json' % quote(name))
+        try:
+            resp = self.opener.open(url)
+            data = resp.read().decode() # for now
+            d = json.loads(data)
+            md = Metadata(scheme=self.scheme)
+            data = d['info']
+            md.name = data['name']
+            md.version = data['version']
+            md.license = data.get('license')
+            md.keywords = data.get('keywords', [])
+            md.summary = data.get('summary')
+            dist = Distribution(md)
+            dist.locator = self
+            urls = d['urls']
+            result[md.version] = dist
+            for info in d['urls']:
+                url = info['url']
+                dist.download_urls.add(url)
+                dist.digests[url] = self._get_digest(info)
+                result['urls'].setdefault(md.version, set()).add(url)
+                result['digests'][url] = self._get_digest(info)
+            # Now get other releases
+            for version, infos in d['releases'].items():
+                if version == md.version:
+                    continue    # already done
+                omd = Metadata(scheme=self.scheme)
+                omd.name = md.name
+                omd.version = version
+                odist = Distribution(omd)
+                odist.locator = self
+                result[version] = odist
+                for info in infos:
+                    url = info['url']
+                    odist.download_urls.add(url)
+                    odist.digests[url] = self._get_digest(info)
+                    result['urls'].setdefault(version, set()).add(url)
+                    result['digests'][url] = self._get_digest(info)
+#            for info in urls:
+#                md.source_url = info['url']
+#                dist.digest = self._get_digest(info)
+#                dist.locator = self
+#                for info in urls:
+#                    url = info['url']
+#                    result['urls'].setdefault(md.version, set()).add(url)
+#                    result['digests'][url] = self._get_digest(info)
+        except Exception as e:
+            self.errors.put(text_type(e))
+            logger.exception('JSON fetch failed: %s', e)
+        return result
+
+
+class Page(object):
+    """
+    This class represents a scraped HTML page.
+    """
+    # The following slightly hairy-looking regex just looks for the contents of
+    # an anchor link, which has an attribute "href" either immediately preceded
+    # or immediately followed by a "rel" attribute. The attribute values can be
+    # declared with double quotes, single quotes or no quotes - which leads to
+    # the length of the expression.
+    _href = re.compile("""
+(rel\\s*=\\s*(?:"(?P[^"]*)"|'(?P[^']*)'|(?P[^>\\s\n]*))\\s+)?
+href\\s*=\\s*(?:"(?P[^"]*)"|'(?P[^']*)'|(?P[^>\\s\n]*))
+(\\s+rel\\s*=\\s*(?:"(?P[^"]*)"|'(?P[^']*)'|(?P[^>\\s\n]*)))?
+""", re.I | re.S | re.X)
+    _base = re.compile(r"""]+)""", re.I | re.S)
+
+    def __init__(self, data, url):
+        """
+        Initialise an instance with the Unicode page contents and the URL they
+        came from.
+        """
+        self.data = data
+        self.base_url = self.url = url
+        m = self._base.search(self.data)
+        if m:
+            self.base_url = m.group(1)
+
+    _clean_re = re.compile(r'[^a-z0-9$&+,/:;=?@.#%_\\|-]', re.I)
+
+    @cached_property
+    def links(self):
+        """
+        Return the URLs of all the links on a page together with information
+        about their "rel" attribute, for determining which ones to treat as
+        downloads and which ones to queue for further scraping.
+        """
+        def clean(url):
+            "Tidy up an URL."
+            scheme, netloc, path, params, query, frag = urlparse(url)
+            return urlunparse((scheme, netloc, quote(path),
+                               params, query, frag))
+
+        result = set()
+        for match in self._href.finditer(self.data):
+            d = match.groupdict('')
+            rel = (d['rel1'] or d['rel2'] or d['rel3'] or
+                   d['rel4'] or d['rel5'] or d['rel6'])
+            url = d['url1'] or d['url2'] or d['url3']
+            url = urljoin(self.base_url, url)
+            url = unescape(url)
+            url = self._clean_re.sub(lambda m: '%%%2x' % ord(m.group(0)), url)
+            result.add((url, rel))
+        # We sort the result, hoping to bring the most recent versions
+        # to the front
+        result = sorted(result, key=lambda t: t[0], reverse=True)
+        return result
+
+
+class SimpleScrapingLocator(Locator):
+    """
+    A locator which scrapes HTML pages to locate downloads for a distribution.
+    This runs multiple threads to do the I/O; performance is at least as good
+    as pip's PackageFinder, which works in an analogous fashion.
+    """
+
+    # These are used to deal with various Content-Encoding schemes.
+    decoders = {
+        'deflate': zlib.decompress,
+        'gzip': lambda b: gzip.GzipFile(fileobj=BytesIO(b)).read(),
+        'none': lambda b: b,
+    }
+
+    def __init__(self, url, timeout=None, num_workers=10, **kwargs):
+        """
+        Initialise an instance.
+        :param url: The root URL to use for scraping.
+        :param timeout: The timeout, in seconds, to be applied to requests.
+                        This defaults to ``None`` (no timeout specified).
+        :param num_workers: The number of worker threads you want to do I/O,
+                            This defaults to 10.
+        :param kwargs: Passed to the superclass.
+        """
+        super(SimpleScrapingLocator, self).__init__(**kwargs)
+        self.base_url = ensure_slash(url)
+        self.timeout = timeout
+        self._page_cache = {}
+        self._seen = set()
+        self._to_fetch = queue.Queue()
+        self._bad_hosts = set()
+        self.skip_externals = False
+        self.num_workers = num_workers
+        self._lock = threading.RLock()
+        # See issue #45: we need to be resilient when the locator is used
+        # in a thread, e.g. with concurrent.futures. We can't use self._lock
+        # as it is for coordinating our internal threads - the ones created
+        # in _prepare_threads.
+        self._gplock = threading.RLock()
+        self.platform_check = False  # See issue #112
+
+    def _prepare_threads(self):
+        """
+        Threads are created only when get_project is called, and terminate
+        before it returns. They are there primarily to parallelise I/O (i.e.
+        fetching web pages).
+        """
+        self._threads = []
+        for i in range(self.num_workers):
+            t = threading.Thread(target=self._fetch)
+            t.setDaemon(True)
+            t.start()
+            self._threads.append(t)
+
+    def _wait_threads(self):
+        """
+        Tell all the threads to terminate (by sending a sentinel value) and
+        wait for them to do so.
+        """
+        # Note that you need two loops, since you can't say which
+        # thread will get each sentinel
+        for t in self._threads:
+            self._to_fetch.put(None)    # sentinel
+        for t in self._threads:
+            t.join()
+        self._threads = []
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        with self._gplock:
+            self.result = result
+            self.project_name = name
+            url = urljoin(self.base_url, '%s/' % quote(name))
+            self._seen.clear()
+            self._page_cache.clear()
+            self._prepare_threads()
+            try:
+                logger.debug('Queueing %s', url)
+                self._to_fetch.put(url)
+                self._to_fetch.join()
+            finally:
+                self._wait_threads()
+            del self.result
+        return result
+
+    platform_dependent = re.compile(r'\b(linux_(i\d86|x86_64|arm\w+)|'
+                                    r'win(32|_amd64)|macosx_?\d+)\b', re.I)
+
+    def _is_platform_dependent(self, url):
+        """
+        Does an URL refer to a platform-specific download?
+        """
+        return self.platform_dependent.search(url)
+
+    def _process_download(self, url):
+        """
+        See if an URL is a suitable download for a project.
+
+        If it is, register information in the result dictionary (for
+        _get_project) about the specific version it's for.
+
+        Note that the return value isn't actually used other than as a boolean
+        value.
+        """
+        if self.platform_check and self._is_platform_dependent(url):
+            info = None
+        else:
+            info = self.convert_url_to_download_info(url, self.project_name)
+        logger.debug('process_download: %s -> %s', url, info)
+        if info:
+            with self._lock:    # needed because self.result is shared
+                self._update_version_data(self.result, info)
+        return info
+
+    def _should_queue(self, link, referrer, rel):
+        """
+        Determine whether a link URL from a referring page and with a
+        particular "rel" attribute should be queued for scraping.
+        """
+        scheme, netloc, path, _, _, _ = urlparse(link)
+        if path.endswith(self.source_extensions + self.binary_extensions +
+                         self.excluded_extensions):
+            result = False
+        elif self.skip_externals and not link.startswith(self.base_url):
+            result = False
+        elif not referrer.startswith(self.base_url):
+            result = False
+        elif rel not in ('homepage', 'download'):
+            result = False
+        elif scheme not in ('http', 'https', 'ftp'):
+            result = False
+        elif self._is_platform_dependent(link):
+            result = False
+        else:
+            host = netloc.split(':', 1)[0]
+            if host.lower() == 'localhost':
+                result = False
+            else:
+                result = True
+        logger.debug('should_queue: %s (%s) from %s -> %s', link, rel,
+                     referrer, result)
+        return result
+
+    def _fetch(self):
+        """
+        Get a URL to fetch from the work queue, get the HTML page, examine its
+        links for download candidates and candidates for further scraping.
+
+        This is a handy method to run in a thread.
+        """
+        while True:
+            url = self._to_fetch.get()
+            try:
+                if url:
+                    page = self.get_page(url)
+                    if page is None:    # e.g. after an error
+                        continue
+                    for link, rel in page.links:
+                        if link not in self._seen:
+                            try:
+                                self._seen.add(link)
+                                if (not self._process_download(link) and
+                                    self._should_queue(link, url, rel)):
+                                    logger.debug('Queueing %s from %s', link, url)
+                                    self._to_fetch.put(link)
+                            except MetadataInvalidError:  # e.g. invalid versions
+                                pass
+            except Exception as e:  # pragma: no cover
+                self.errors.put(text_type(e))
+            finally:
+                # always do this, to avoid hangs :-)
+                self._to_fetch.task_done()
+            if not url:
+                #logger.debug('Sentinel seen, quitting.')
+                break
+
+    def get_page(self, url):
+        """
+        Get the HTML for an URL, possibly from an in-memory cache.
+
+        XXX TODO Note: this cache is never actually cleared. It's assumed that
+        the data won't get stale over the lifetime of a locator instance (not
+        necessarily true for the default_locator).
+        """
+        # http://peak.telecommunity.com/DevCenter/EasyInstall#package-index-api
+        scheme, netloc, path, _, _, _ = urlparse(url)
+        if scheme == 'file' and os.path.isdir(url2pathname(path)):
+            url = urljoin(ensure_slash(url), 'index.html')
+
+        if url in self._page_cache:
+            result = self._page_cache[url]
+            logger.debug('Returning %s from cache: %s', url, result)
+        else:
+            host = netloc.split(':', 1)[0]
+            result = None
+            if host in self._bad_hosts:
+                logger.debug('Skipping %s due to bad host %s', url, host)
+            else:
+                req = Request(url, headers={'Accept-encoding': 'identity'})
+                try:
+                    logger.debug('Fetching %s', url)
+                    resp = self.opener.open(req, timeout=self.timeout)
+                    logger.debug('Fetched %s', url)
+                    headers = resp.info()
+                    content_type = headers.get('Content-Type', '')
+                    if HTML_CONTENT_TYPE.match(content_type):
+                        final_url = resp.geturl()
+                        data = resp.read()
+                        encoding = headers.get('Content-Encoding')
+                        if encoding:
+                            decoder = self.decoders[encoding]   # fail if not found
+                            data = decoder(data)
+                        encoding = 'utf-8'
+                        m = CHARSET.search(content_type)
+                        if m:
+                            encoding = m.group(1)
+                        try:
+                            data = data.decode(encoding)
+                        except UnicodeError:  # pragma: no cover
+                            data = data.decode('latin-1')    # fallback
+                        result = Page(data, final_url)
+                        self._page_cache[final_url] = result
+                except HTTPError as e:
+                    if e.code != 404:
+                        logger.exception('Fetch failed: %s: %s', url, e)
+                except URLError as e:  # pragma: no cover
+                    logger.exception('Fetch failed: %s: %s', url, e)
+                    with self._lock:
+                        self._bad_hosts.add(host)
+                except Exception as e:  # pragma: no cover
+                    logger.exception('Fetch failed: %s: %s', url, e)
+                finally:
+                    self._page_cache[url] = result   # even if None (failure)
+        return result
+
+    _distname_re = re.compile(']*>([^<]+)<')
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        result = set()
+        page = self.get_page(self.base_url)
+        if not page:
+            raise DistlibException('Unable to get %s' % self.base_url)
+        for match in self._distname_re.finditer(page.data):
+            result.add(match.group(1))
+        return result
+
+class DirectoryLocator(Locator):
+    """
+    This class locates distributions in a directory tree.
+    """
+
+    def __init__(self, path, **kwargs):
+        """
+        Initialise an instance.
+        :param path: The root of the directory tree to search.
+        :param kwargs: Passed to the superclass constructor,
+                       except for:
+                       * recursive - if True (the default), subdirectories are
+                         recursed into. If False, only the top-level directory
+                         is searched,
+        """
+        self.recursive = kwargs.pop('recursive', True)
+        super(DirectoryLocator, self).__init__(**kwargs)
+        path = os.path.abspath(path)
+        if not os.path.isdir(path):  # pragma: no cover
+            raise DistlibException('Not a directory: %r' % path)
+        self.base_dir = path
+
+    def should_include(self, filename, parent):
+        """
+        Should a filename be considered as a candidate for a distribution
+        archive? As well as the filename, the directory which contains it
+        is provided, though not used by the current implementation.
+        """
+        return filename.endswith(self.downloadable_extensions)
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        for root, dirs, files in os.walk(self.base_dir):
+            for fn in files:
+                if self.should_include(fn, root):
+                    fn = os.path.join(root, fn)
+                    url = urlunparse(('file', '',
+                                      pathname2url(os.path.abspath(fn)),
+                                      '', '', ''))
+                    info = self.convert_url_to_download_info(url, name)
+                    if info:
+                        self._update_version_data(result, info)
+            if not self.recursive:
+                break
+        return result
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        result = set()
+        for root, dirs, files in os.walk(self.base_dir):
+            for fn in files:
+                if self.should_include(fn, root):
+                    fn = os.path.join(root, fn)
+                    url = urlunparse(('file', '',
+                                      pathname2url(os.path.abspath(fn)),
+                                      '', '', ''))
+                    info = self.convert_url_to_download_info(url, None)
+                    if info:
+                        result.add(info['name'])
+            if not self.recursive:
+                break
+        return result
+
+class JSONLocator(Locator):
+    """
+    This locator uses special extended metadata (not available on PyPI) and is
+    the basis of performant dependency resolution in distlib. Other locators
+    require archive downloads before dependencies can be determined! As you
+    might imagine, that can be slow.
+    """
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        raise NotImplementedError('Not available from this locator')
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        data = get_project_data(name)
+        if data:
+            for info in data.get('files', []):
+                if info['ptype'] != 'sdist' or info['pyversion'] != 'source':
+                    continue
+                # We don't store summary in project metadata as it makes
+                # the data bigger for no benefit during dependency
+                # resolution
+                dist = make_dist(data['name'], info['version'],
+                                 summary=data.get('summary',
+                                                  'Placeholder for summary'),
+                                 scheme=self.scheme)
+                md = dist.metadata
+                md.source_url = info['url']
+                # TODO SHA256 digest
+                if 'digest' in info and info['digest']:
+                    dist.digest = ('md5', info['digest'])
+                md.dependencies = info.get('requirements', {})
+                dist.exports = info.get('exports', {})
+                result[dist.version] = dist
+                result['urls'].setdefault(dist.version, set()).add(info['url'])
+        return result
+
+class DistPathLocator(Locator):
+    """
+    This locator finds installed distributions in a path. It can be useful for
+    adding to an :class:`AggregatingLocator`.
+    """
+    def __init__(self, distpath, **kwargs):
+        """
+        Initialise an instance.
+
+        :param distpath: A :class:`DistributionPath` instance to search.
+        """
+        super(DistPathLocator, self).__init__(**kwargs)
+        assert isinstance(distpath, DistributionPath)
+        self.distpath = distpath
+
+    def _get_project(self, name):
+        dist = self.distpath.get_distribution(name)
+        if dist is None:
+            result = {'urls': {}, 'digests': {}}
+        else:
+            result = {
+                dist.version: dist,
+                'urls': {dist.version: set([dist.source_url])},
+                'digests': {dist.version: set([None])}
+            }
+        return result
+
+
+class AggregatingLocator(Locator):
+    """
+    This class allows you to chain and/or merge a list of locators.
+    """
+    def __init__(self, *locators, **kwargs):
+        """
+        Initialise an instance.
+
+        :param locators: The list of locators to search.
+        :param kwargs: Passed to the superclass constructor,
+                       except for:
+                       * merge - if False (the default), the first successful
+                         search from any of the locators is returned. If True,
+                         the results from all locators are merged (this can be
+                         slow).
+        """
+        self.merge = kwargs.pop('merge', False)
+        self.locators = locators
+        super(AggregatingLocator, self).__init__(**kwargs)
+
+    def clear_cache(self):
+        super(AggregatingLocator, self).clear_cache()
+        for locator in self.locators:
+            locator.clear_cache()
+
+    def _set_scheme(self, value):
+        self._scheme = value
+        for locator in self.locators:
+            locator.scheme = value
+
+    scheme = property(Locator.scheme.fget, _set_scheme)
+
+    def _get_project(self, name):
+        result = {}
+        for locator in self.locators:
+            d = locator.get_project(name)
+            if d:
+                if self.merge:
+                    files = result.get('urls', {})
+                    digests = result.get('digests', {})
+                    # next line could overwrite result['urls'], result['digests']
+                    result.update(d)
+                    df = result.get('urls')
+                    if files and df:
+                        for k, v in files.items():
+                            if k in df:
+                                df[k] |= v
+                            else:
+                                df[k] = v
+                    dd = result.get('digests')
+                    if digests and dd:
+                        dd.update(digests)
+                else:
+                    # See issue #18. If any dists are found and we're looking
+                    # for specific constraints, we only return something if
+                    # a match is found. For example, if a DirectoryLocator
+                    # returns just foo (1.0) while we're looking for
+                    # foo (>= 2.0), we'll pretend there was nothing there so
+                    # that subsequent locators can be queried. Otherwise we
+                    # would just return foo (1.0) which would then lead to a
+                    # failure to find foo (>= 2.0), because other locators
+                    # weren't searched. Note that this only matters when
+                    # merge=False.
+                    if self.matcher is None:
+                        found = True
+                    else:
+                        found = False
+                        for k in d:
+                            if self.matcher.match(k):
+                                found = True
+                                break
+                    if found:
+                        result = d
+                        break
+        return result
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        result = set()
+        for locator in self.locators:
+            try:
+                result |= locator.get_distribution_names()
+            except NotImplementedError:
+                pass
+        return result
+
+
+# We use a legacy scheme simply because most of the dists on PyPI use legacy
+# versions which don't conform to PEP 426 / PEP 440.
+default_locator = AggregatingLocator(
+                    JSONLocator(),
+                    SimpleScrapingLocator('https://pypi.org/simple/',
+                                          timeout=3.0),
+                    scheme='legacy')
+
+locate = default_locator.locate
+
+
+class DependencyFinder(object):
+    """
+    Locate dependencies for distributions.
+    """
+
+    def __init__(self, locator=None):
+        """
+        Initialise an instance, using the specified locator
+        to locate distributions.
+        """
+        self.locator = locator or default_locator
+        self.scheme = get_scheme(self.locator.scheme)
+
+    def add_distribution(self, dist):
+        """
+        Add a distribution to the finder. This will update internal information
+        about who provides what.
+        :param dist: The distribution to add.
+        """
+        logger.debug('adding distribution %s', dist)
+        name = dist.key
+        self.dists_by_name[name] = dist
+        self.dists[(name, dist.version)] = dist
+        for p in dist.provides:
+            name, version = parse_name_and_version(p)
+            logger.debug('Add to provided: %s, %s, %s', name, version, dist)
+            self.provided.setdefault(name, set()).add((version, dist))
+
+    def remove_distribution(self, dist):
+        """
+        Remove a distribution from the finder. This will update internal
+        information about who provides what.
+        :param dist: The distribution to remove.
+        """
+        logger.debug('removing distribution %s', dist)
+        name = dist.key
+        del self.dists_by_name[name]
+        del self.dists[(name, dist.version)]
+        for p in dist.provides:
+            name, version = parse_name_and_version(p)
+            logger.debug('Remove from provided: %s, %s, %s', name, version, dist)
+            s = self.provided[name]
+            s.remove((version, dist))
+            if not s:
+                del self.provided[name]
+
+    def get_matcher(self, reqt):
+        """
+        Get a version matcher for a requirement.
+        :param reqt: The requirement
+        :type reqt: str
+        :return: A version matcher (an instance of
+                 :class:`distlib.version.Matcher`).
+        """
+        try:
+            matcher = self.scheme.matcher(reqt)
+        except UnsupportedVersionError:  # pragma: no cover
+            # XXX compat-mode if cannot read the version
+            name = reqt.split()[0]
+            matcher = self.scheme.matcher(name)
+        return matcher
+
+    def find_providers(self, reqt):
+        """
+        Find the distributions which can fulfill a requirement.
+
+        :param reqt: The requirement.
+         :type reqt: str
+        :return: A set of distribution which can fulfill the requirement.
+        """
+        matcher = self.get_matcher(reqt)
+        name = matcher.key   # case-insensitive
+        result = set()
+        provided = self.provided
+        if name in provided:
+            for version, provider in provided[name]:
+                try:
+                    match = matcher.match(version)
+                except UnsupportedVersionError:
+                    match = False
+
+                if match:
+                    result.add(provider)
+                    break
+        return result
+
+    def try_to_replace(self, provider, other, problems):
+        """
+        Attempt to replace one provider with another. This is typically used
+        when resolving dependencies from multiple sources, e.g. A requires
+        (B >= 1.0) while C requires (B >= 1.1).
+
+        For successful replacement, ``provider`` must meet all the requirements
+        which ``other`` fulfills.
+
+        :param provider: The provider we are trying to replace with.
+        :param other: The provider we're trying to replace.
+        :param problems: If False is returned, this will contain what
+                         problems prevented replacement. This is currently
+                         a tuple of the literal string 'cantreplace',
+                         ``provider``, ``other``  and the set of requirements
+                         that ``provider`` couldn't fulfill.
+        :return: True if we can replace ``other`` with ``provider``, else
+                 False.
+        """
+        rlist = self.reqts[other]
+        unmatched = set()
+        for s in rlist:
+            matcher = self.get_matcher(s)
+            if not matcher.match(provider.version):
+                unmatched.add(s)
+        if unmatched:
+            # can't replace other with provider
+            problems.add(('cantreplace', provider, other,
+                          frozenset(unmatched)))
+            result = False
+        else:
+            # can replace other with provider
+            self.remove_distribution(other)
+            del self.reqts[other]
+            for s in rlist:
+                self.reqts.setdefault(provider, set()).add(s)
+            self.add_distribution(provider)
+            result = True
+        return result
+
+    def find(self, requirement, meta_extras=None, prereleases=False):
+        """
+        Find a distribution and all distributions it depends on.
+
+        :param requirement: The requirement specifying the distribution to
+                            find, or a Distribution instance.
+        :param meta_extras: A list of meta extras such as :test:, :build: and
+                            so on.
+        :param prereleases: If ``True``, allow pre-release versions to be
+                            returned - otherwise, don't return prereleases
+                            unless they're all that's available.
+
+        Return a set of :class:`Distribution` instances and a set of
+        problems.
+
+        The distributions returned should be such that they have the
+        :attr:`required` attribute set to ``True`` if they were
+        from the ``requirement`` passed to ``find()``, and they have the
+        :attr:`build_time_dependency` attribute set to ``True`` unless they
+        are post-installation dependencies of the ``requirement``.
+
+        The problems should be a tuple consisting of the string
+        ``'unsatisfied'`` and the requirement which couldn't be satisfied
+        by any distribution known to the locator.
+        """
+
+        self.provided = {}
+        self.dists = {}
+        self.dists_by_name = {}
+        self.reqts = {}
+
+        meta_extras = set(meta_extras or [])
+        if ':*:' in meta_extras:
+            meta_extras.remove(':*:')
+            # :meta: and :run: are implicitly included
+            meta_extras |= set([':test:', ':build:', ':dev:'])
+
+        if isinstance(requirement, Distribution):
+            dist = odist = requirement
+            logger.debug('passed %s as requirement', odist)
+        else:
+            dist = odist = self.locator.locate(requirement,
+                                               prereleases=prereleases)
+            if dist is None:
+                raise DistlibException('Unable to locate %r' % requirement)
+            logger.debug('located %s', odist)
+        dist.requested = True
+        problems = set()
+        todo = set([dist])
+        install_dists = set([odist])
+        while todo:
+            dist = todo.pop()
+            name = dist.key     # case-insensitive
+            if name not in self.dists_by_name:
+                self.add_distribution(dist)
+            else:
+                #import pdb; pdb.set_trace()
+                other = self.dists_by_name[name]
+                if other != dist:
+                    self.try_to_replace(dist, other, problems)
+
+            ireqts = dist.run_requires | dist.meta_requires
+            sreqts = dist.build_requires
+            ereqts = set()
+            if meta_extras and dist in install_dists:
+                for key in ('test', 'build', 'dev'):
+                    e = ':%s:' % key
+                    if e in meta_extras:
+                        ereqts |= getattr(dist, '%s_requires' % key)
+            all_reqts = ireqts | sreqts | ereqts
+            for r in all_reqts:
+                providers = self.find_providers(r)
+                if not providers:
+                    logger.debug('No providers found for %r', r)
+                    provider = self.locator.locate(r, prereleases=prereleases)
+                    # If no provider is found and we didn't consider
+                    # prereleases, consider them now.
+                    if provider is None and not prereleases:
+                        provider = self.locator.locate(r, prereleases=True)
+                    if provider is None:
+                        logger.debug('Cannot satisfy %r', r)
+                        problems.add(('unsatisfied', r))
+                    else:
+                        n, v = provider.key, provider.version
+                        if (n, v) not in self.dists:
+                            todo.add(provider)
+                        providers.add(provider)
+                        if r in ireqts and dist in install_dists:
+                            install_dists.add(provider)
+                            logger.debug('Adding %s to install_dists',
+                                         provider.name_and_version)
+                for p in providers:
+                    name = p.key
+                    if name not in self.dists_by_name:
+                        self.reqts.setdefault(p, set()).add(r)
+                    else:
+                        other = self.dists_by_name[name]
+                        if other != p:
+                            # see if other can be replaced by p
+                            self.try_to_replace(p, other, problems)
+
+        dists = set(self.dists.values())
+        for dist in dists:
+            dist.build_time_dependency = dist not in install_dists
+            if dist.build_time_dependency:
+                logger.debug('%s is a build-time dependency only.',
+                             dist.name_and_version)
+        logger.debug('find done for %s', odist)
+        return dists, problems
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/manifest.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/manifest.py
new file mode 100644
index 0000000..ca0fe44
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/manifest.py
@@ -0,0 +1,393 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2013 Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""
+Class representing the list of files in a distribution.
+
+Equivalent to distutils.filelist, but fixes some problems.
+"""
+import fnmatch
+import logging
+import os
+import re
+import sys
+
+from . import DistlibException
+from .compat import fsdecode
+from .util import convert_path
+
+
+__all__ = ['Manifest']
+
+logger = logging.getLogger(__name__)
+
+# a \ followed by some spaces + EOL
+_COLLAPSE_PATTERN = re.compile('\\\\w*\n', re.M)
+_COMMENTED_LINE = re.compile('#.*?(?=\n)|\n(?=$)', re.M | re.S)
+
+#
+# Due to the different results returned by fnmatch.translate, we need
+# to do slightly different processing for Python 2.7 and 3.2 ... this needed
+# to be brought in for Python 3.6 onwards.
+#
+_PYTHON_VERSION = sys.version_info[:2]
+
+class Manifest(object):
+    """A list of files built by on exploring the filesystem and filtered by
+    applying various patterns to what we find there.
+    """
+
+    def __init__(self, base=None):
+        """
+        Initialise an instance.
+
+        :param base: The base directory to explore under.
+        """
+        self.base = os.path.abspath(os.path.normpath(base or os.getcwd()))
+        self.prefix = self.base + os.sep
+        self.allfiles = None
+        self.files = set()
+
+    #
+    # Public API
+    #
+
+    def findall(self):
+        """Find all files under the base and set ``allfiles`` to the absolute
+        pathnames of files found.
+        """
+        from stat import S_ISREG, S_ISDIR, S_ISLNK
+
+        self.allfiles = allfiles = []
+        root = self.base
+        stack = [root]
+        pop = stack.pop
+        push = stack.append
+
+        while stack:
+            root = pop()
+            names = os.listdir(root)
+
+            for name in names:
+                fullname = os.path.join(root, name)
+
+                # Avoid excess stat calls -- just one will do, thank you!
+                stat = os.stat(fullname)
+                mode = stat.st_mode
+                if S_ISREG(mode):
+                    allfiles.append(fsdecode(fullname))
+                elif S_ISDIR(mode) and not S_ISLNK(mode):
+                    push(fullname)
+
+    def add(self, item):
+        """
+        Add a file to the manifest.
+
+        :param item: The pathname to add. This can be relative to the base.
+        """
+        if not item.startswith(self.prefix):
+            item = os.path.join(self.base, item)
+        self.files.add(os.path.normpath(item))
+
+    def add_many(self, items):
+        """
+        Add a list of files to the manifest.
+
+        :param items: The pathnames to add. These can be relative to the base.
+        """
+        for item in items:
+            self.add(item)
+
+    def sorted(self, wantdirs=False):
+        """
+        Return sorted files in directory order
+        """
+
+        def add_dir(dirs, d):
+            dirs.add(d)
+            logger.debug('add_dir added %s', d)
+            if d != self.base:
+                parent, _ = os.path.split(d)
+                assert parent not in ('', '/')
+                add_dir(dirs, parent)
+
+        result = set(self.files)    # make a copy!
+        if wantdirs:
+            dirs = set()
+            for f in result:
+                add_dir(dirs, os.path.dirname(f))
+            result |= dirs
+        return [os.path.join(*path_tuple) for path_tuple in
+                sorted(os.path.split(path) for path in result)]
+
+    def clear(self):
+        """Clear all collected files."""
+        self.files = set()
+        self.allfiles = []
+
+    def process_directive(self, directive):
+        """
+        Process a directive which either adds some files from ``allfiles`` to
+        ``files``, or removes some files from ``files``.
+
+        :param directive: The directive to process. This should be in a format
+                     compatible with distutils ``MANIFEST.in`` files:
+
+                     http://docs.python.org/distutils/sourcedist.html#commands
+        """
+        # Parse the line: split it up, make sure the right number of words
+        # is there, and return the relevant words.  'action' is always
+        # defined: it's the first word of the line.  Which of the other
+        # three are defined depends on the action; it'll be either
+        # patterns, (dir and patterns), or (dirpattern).
+        action, patterns, thedir, dirpattern = self._parse_directive(directive)
+
+        # OK, now we know that the action is valid and we have the
+        # right number of words on the line for that action -- so we
+        # can proceed with minimal error-checking.
+        if action == 'include':
+            for pattern in patterns:
+                if not self._include_pattern(pattern, anchor=True):
+                    logger.warning('no files found matching %r', pattern)
+
+        elif action == 'exclude':
+            for pattern in patterns:
+                found = self._exclude_pattern(pattern, anchor=True)
+                #if not found:
+                #    logger.warning('no previously-included files '
+                #                   'found matching %r', pattern)
+
+        elif action == 'global-include':
+            for pattern in patterns:
+                if not self._include_pattern(pattern, anchor=False):
+                    logger.warning('no files found matching %r '
+                                   'anywhere in distribution', pattern)
+
+        elif action == 'global-exclude':
+            for pattern in patterns:
+                found = self._exclude_pattern(pattern, anchor=False)
+                #if not found:
+                #    logger.warning('no previously-included files '
+                #                   'matching %r found anywhere in '
+                #                   'distribution', pattern)
+
+        elif action == 'recursive-include':
+            for pattern in patterns:
+                if not self._include_pattern(pattern, prefix=thedir):
+                    logger.warning('no files found matching %r '
+                                   'under directory %r', pattern, thedir)
+
+        elif action == 'recursive-exclude':
+            for pattern in patterns:
+                found = self._exclude_pattern(pattern, prefix=thedir)
+                #if not found:
+                #    logger.warning('no previously-included files '
+                #                   'matching %r found under directory %r',
+                #                   pattern, thedir)
+
+        elif action == 'graft':
+            if not self._include_pattern(None, prefix=dirpattern):
+                logger.warning('no directories found matching %r',
+                               dirpattern)
+
+        elif action == 'prune':
+            if not self._exclude_pattern(None, prefix=dirpattern):
+                logger.warning('no previously-included directories found '
+                               'matching %r', dirpattern)
+        else:   # pragma: no cover
+            # This should never happen, as it should be caught in
+            # _parse_template_line
+            raise DistlibException(
+                'invalid action %r' % action)
+
+    #
+    # Private API
+    #
+
+    def _parse_directive(self, directive):
+        """
+        Validate a directive.
+        :param directive: The directive to validate.
+        :return: A tuple of action, patterns, thedir, dir_patterns
+        """
+        words = directive.split()
+        if len(words) == 1 and words[0] not in ('include', 'exclude',
+                                                'global-include',
+                                                'global-exclude',
+                                                'recursive-include',
+                                                'recursive-exclude',
+                                                'graft', 'prune'):
+            # no action given, let's use the default 'include'
+            words.insert(0, 'include')
+
+        action = words[0]
+        patterns = thedir = dir_pattern = None
+
+        if action in ('include', 'exclude',
+                      'global-include', 'global-exclude'):
+            if len(words) < 2:
+                raise DistlibException(
+                    '%r expects   ...' % action)
+
+            patterns = [convert_path(word) for word in words[1:]]
+
+        elif action in ('recursive-include', 'recursive-exclude'):
+            if len(words) < 3:
+                raise DistlibException(
+                    '%r expects    ...' % action)
+
+            thedir = convert_path(words[1])
+            patterns = [convert_path(word) for word in words[2:]]
+
+        elif action in ('graft', 'prune'):
+            if len(words) != 2:
+                raise DistlibException(
+                    '%r expects a single ' % action)
+
+            dir_pattern = convert_path(words[1])
+
+        else:
+            raise DistlibException('unknown action %r' % action)
+
+        return action, patterns, thedir, dir_pattern
+
+    def _include_pattern(self, pattern, anchor=True, prefix=None,
+                         is_regex=False):
+        """Select strings (presumably filenames) from 'self.files' that
+        match 'pattern', a Unix-style wildcard (glob) pattern.
+
+        Patterns are not quite the same as implemented by the 'fnmatch'
+        module: '*' and '?'  match non-special characters, where "special"
+        is platform-dependent: slash on Unix; colon, slash, and backslash on
+        DOS/Windows; and colon on Mac OS.
+
+        If 'anchor' is true (the default), then the pattern match is more
+        stringent: "*.py" will match "foo.py" but not "foo/bar.py".  If
+        'anchor' is false, both of these will match.
+
+        If 'prefix' is supplied, then only filenames starting with 'prefix'
+        (itself a pattern) and ending with 'pattern', with anything in between
+        them, will match.  'anchor' is ignored in this case.
+
+        If 'is_regex' is true, 'anchor' and 'prefix' are ignored, and
+        'pattern' is assumed to be either a string containing a regex or a
+        regex object -- no translation is done, the regex is just compiled
+        and used as-is.
+
+        Selected strings will be added to self.files.
+
+        Return True if files are found.
+        """
+        # XXX docstring lying about what the special chars are?
+        found = False
+        pattern_re = self._translate_pattern(pattern, anchor, prefix, is_regex)
+
+        # delayed loading of allfiles list
+        if self.allfiles is None:
+            self.findall()
+
+        for name in self.allfiles:
+            if pattern_re.search(name):
+                self.files.add(name)
+                found = True
+        return found
+
+    def _exclude_pattern(self, pattern, anchor=True, prefix=None,
+                         is_regex=False):
+        """Remove strings (presumably filenames) from 'files' that match
+        'pattern'.
+
+        Other parameters are the same as for 'include_pattern()', above.
+        The list 'self.files' is modified in place. Return True if files are
+        found.
+
+        This API is public to allow e.g. exclusion of SCM subdirs, e.g. when
+        packaging source distributions
+        """
+        found = False
+        pattern_re = self._translate_pattern(pattern, anchor, prefix, is_regex)
+        for f in list(self.files):
+            if pattern_re.search(f):
+                self.files.remove(f)
+                found = True
+        return found
+
+    def _translate_pattern(self, pattern, anchor=True, prefix=None,
+                           is_regex=False):
+        """Translate a shell-like wildcard pattern to a compiled regular
+        expression.
+
+        Return the compiled regex.  If 'is_regex' true,
+        then 'pattern' is directly compiled to a regex (if it's a string)
+        or just returned as-is (assumes it's a regex object).
+        """
+        if is_regex:
+            if isinstance(pattern, str):
+                return re.compile(pattern)
+            else:
+                return pattern
+
+        if _PYTHON_VERSION > (3, 2):
+            # ditch start and end characters
+            start, _, end = self._glob_to_re('_').partition('_')
+
+        if pattern:
+            pattern_re = self._glob_to_re(pattern)
+            if _PYTHON_VERSION > (3, 2):
+                assert pattern_re.startswith(start) and pattern_re.endswith(end)
+        else:
+            pattern_re = ''
+
+        base = re.escape(os.path.join(self.base, ''))
+        if prefix is not None:
+            # ditch end of pattern character
+            if _PYTHON_VERSION <= (3, 2):
+                empty_pattern = self._glob_to_re('')
+                prefix_re = self._glob_to_re(prefix)[:-len(empty_pattern)]
+            else:
+                prefix_re = self._glob_to_re(prefix)
+                assert prefix_re.startswith(start) and prefix_re.endswith(end)
+                prefix_re = prefix_re[len(start): len(prefix_re) - len(end)]
+            sep = os.sep
+            if os.sep == '\\':
+                sep = r'\\'
+            if _PYTHON_VERSION <= (3, 2):
+                pattern_re = '^' + base + sep.join((prefix_re,
+                                                    '.*' + pattern_re))
+            else:
+                pattern_re = pattern_re[len(start): len(pattern_re) - len(end)]
+                pattern_re = r'%s%s%s%s.*%s%s' % (start, base, prefix_re, sep,
+                                                  pattern_re, end)
+        else:  # no prefix -- respect anchor flag
+            if anchor:
+                if _PYTHON_VERSION <= (3, 2):
+                    pattern_re = '^' + base + pattern_re
+                else:
+                    pattern_re = r'%s%s%s' % (start, base, pattern_re[len(start):])
+
+        return re.compile(pattern_re)
+
+    def _glob_to_re(self, pattern):
+        """Translate a shell-like glob pattern to a regular expression.
+
+        Return a string containing the regex.  Differs from
+        'fnmatch.translate()' in that '*' does not match "special characters"
+        (which are platform-specific).
+        """
+        pattern_re = fnmatch.translate(pattern)
+
+        # '?' and '*' in the glob pattern become '.' and '.*' in the RE, which
+        # IMHO is wrong -- '?' and '*' aren't supposed to match slash in Unix,
+        # and by extension they shouldn't match such "special characters" under
+        # any OS.  So change all non-escaped dots in the RE to match any
+        # character except the special characters (currently: just os.sep).
+        sep = os.sep
+        if os.sep == '\\':
+            # we're using a regex to manipulate a regex, so we need
+            # to escape the backslash twice
+            sep = r'\\\\'
+        escaped = r'\1[^%s]' % sep
+        pattern_re = re.sub(r'((? y,
+        '!=': lambda x, y: x != y,
+        '<':  lambda x, y: x < y,
+        '<=':  lambda x, y: x == y or x < y,
+        '>':  lambda x, y: x > y,
+        '>=':  lambda x, y: x == y or x > y,
+        'and': lambda x, y: x and y,
+        'or': lambda x, y: x or y,
+        'in': lambda x, y: x in y,
+        'not in': lambda x, y: x not in y,
+    }
+
+    def evaluate(self, expr, context):
+        """
+        Evaluate a marker expression returned by the :func:`parse_requirement`
+        function in the specified context.
+        """
+        if isinstance(expr, string_types):
+            if expr[0] in '\'"':
+                result = expr[1:-1]
+            else:
+                if expr not in context:
+                    raise SyntaxError('unknown variable: %s' % expr)
+                result = context[expr]
+        else:
+            assert isinstance(expr, dict)
+            op = expr['op']
+            if op not in self.operations:
+                raise NotImplementedError('op not implemented: %s' % op)
+            elhs = expr['lhs']
+            erhs = expr['rhs']
+            if _is_literal(expr['lhs']) and _is_literal(expr['rhs']):
+                raise SyntaxError('invalid comparison: %s %s %s' % (elhs, op, erhs))
+
+            lhs = self.evaluate(elhs, context)
+            rhs = self.evaluate(erhs, context)
+            if ((elhs == 'python_version' or erhs == 'python_version') and
+                op in ('<', '<=', '>', '>=', '===', '==', '!=', '~=')):
+                lhs = NV(lhs)
+                rhs = NV(rhs)
+            elif elhs == 'python_version' and op in ('in', 'not in'):
+                lhs = NV(lhs)
+                rhs = _get_versions(rhs)
+            result = self.operations[op](lhs, rhs)
+        return result
+
+def default_context():
+    def format_full_version(info):
+        version = '%s.%s.%s' % (info.major, info.minor, info.micro)
+        kind = info.releaselevel
+        if kind != 'final':
+            version += kind[0] + str(info.serial)
+        return version
+
+    if hasattr(sys, 'implementation'):
+        implementation_version = format_full_version(sys.implementation.version)
+        implementation_name = sys.implementation.name
+    else:
+        implementation_version = '0'
+        implementation_name = ''
+
+    result = {
+        'implementation_name': implementation_name,
+        'implementation_version': implementation_version,
+        'os_name': os.name,
+        'platform_machine': platform.machine(),
+        'platform_python_implementation': platform.python_implementation(),
+        'platform_release': platform.release(),
+        'platform_system': platform.system(),
+        'platform_version': platform.version(),
+        'platform_in_venv': str(in_venv()),
+        'python_full_version': platform.python_version(),
+        'python_version': platform.python_version()[:3],
+        'sys_platform': sys.platform,
+    }
+    return result
+
+DEFAULT_CONTEXT = default_context()
+del default_context
+
+evaluator = Evaluator()
+
+def interpret(marker, execution_context=None):
+    """
+    Interpret a marker and return a result depending on environment.
+
+    :param marker: The marker to interpret.
+    :type marker: str
+    :param execution_context: The context used for name lookup.
+    :type execution_context: mapping
+    """
+    try:
+        expr, rest = parse_marker(marker)
+    except Exception as e:
+        raise SyntaxError('Unable to interpret marker syntax: %s: %s' % (marker, e))
+    if rest and rest[0] != '#':
+        raise SyntaxError('unexpected trailing data in marker: %s: %s' % (marker, rest))
+    context = dict(DEFAULT_CONTEXT)
+    if execution_context:
+        context.update(execution_context)
+    return evaluator.evaluate(expr, context)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/metadata.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/metadata.py
new file mode 100644
index 0000000..6a26b0a
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/metadata.py
@@ -0,0 +1,1058 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""Implementation of the Metadata for Python packages PEPs.
+
+Supports all metadata formats (1.0, 1.1, 1.2, 1.3/2.1 and withdrawn 2.0).
+"""
+from __future__ import unicode_literals
+
+import codecs
+from email import message_from_file
+import json
+import logging
+import re
+
+
+from . import DistlibException, __version__
+from .compat import StringIO, string_types, text_type
+from .markers import interpret
+from .util import extract_by_key, get_extras
+from .version import get_scheme, PEP440_VERSION_RE
+
+logger = logging.getLogger(__name__)
+
+
+class MetadataMissingError(DistlibException):
+    """A required metadata is missing"""
+
+
+class MetadataConflictError(DistlibException):
+    """Attempt to read or write metadata fields that are conflictual."""
+
+
+class MetadataUnrecognizedVersionError(DistlibException):
+    """Unknown metadata version number."""
+
+
+class MetadataInvalidError(DistlibException):
+    """A metadata value is invalid"""
+
+# public API of this module
+__all__ = ['Metadata', 'PKG_INFO_ENCODING', 'PKG_INFO_PREFERRED_VERSION']
+
+# Encoding used for the PKG-INFO files
+PKG_INFO_ENCODING = 'utf-8'
+
+# preferred version. Hopefully will be changed
+# to 1.2 once PEP 345 is supported everywhere
+PKG_INFO_PREFERRED_VERSION = '1.1'
+
+_LINE_PREFIX_1_2 = re.compile('\n       \\|')
+_LINE_PREFIX_PRE_1_2 = re.compile('\n        ')
+_241_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform',
+               'Summary', 'Description',
+               'Keywords', 'Home-page', 'Author', 'Author-email',
+               'License')
+
+_314_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform',
+               'Supported-Platform', 'Summary', 'Description',
+               'Keywords', 'Home-page', 'Author', 'Author-email',
+               'License', 'Classifier', 'Download-URL', 'Obsoletes',
+               'Provides', 'Requires')
+
+_314_MARKERS = ('Obsoletes', 'Provides', 'Requires', 'Classifier',
+                'Download-URL')
+
+_345_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform',
+               'Supported-Platform', 'Summary', 'Description',
+               'Keywords', 'Home-page', 'Author', 'Author-email',
+               'Maintainer', 'Maintainer-email', 'License',
+               'Classifier', 'Download-URL', 'Obsoletes-Dist',
+               'Project-URL', 'Provides-Dist', 'Requires-Dist',
+               'Requires-Python', 'Requires-External')
+
+_345_MARKERS = ('Provides-Dist', 'Requires-Dist', 'Requires-Python',
+                'Obsoletes-Dist', 'Requires-External', 'Maintainer',
+                'Maintainer-email', 'Project-URL')
+
+_426_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform',
+               'Supported-Platform', 'Summary', 'Description',
+               'Keywords', 'Home-page', 'Author', 'Author-email',
+               'Maintainer', 'Maintainer-email', 'License',
+               'Classifier', 'Download-URL', 'Obsoletes-Dist',
+               'Project-URL', 'Provides-Dist', 'Requires-Dist',
+               'Requires-Python', 'Requires-External', 'Private-Version',
+               'Obsoleted-By', 'Setup-Requires-Dist', 'Extension',
+               'Provides-Extra')
+
+_426_MARKERS = ('Private-Version', 'Provides-Extra', 'Obsoleted-By',
+                'Setup-Requires-Dist', 'Extension')
+
+# See issue #106: Sometimes 'Requires' and 'Provides' occur wrongly in
+# the metadata. Include them in the tuple literal below to allow them
+# (for now).
+# Ditto for Obsoletes - see issue #140.
+_566_FIELDS = _426_FIELDS + ('Description-Content-Type',
+                             'Requires', 'Provides', 'Obsoletes')
+
+_566_MARKERS = ('Description-Content-Type',)
+
+_ALL_FIELDS = set()
+_ALL_FIELDS.update(_241_FIELDS)
+_ALL_FIELDS.update(_314_FIELDS)
+_ALL_FIELDS.update(_345_FIELDS)
+_ALL_FIELDS.update(_426_FIELDS)
+_ALL_FIELDS.update(_566_FIELDS)
+
+EXTRA_RE = re.compile(r'''extra\s*==\s*("([^"]+)"|'([^']+)')''')
+
+
+def _version2fieldlist(version):
+    if version == '1.0':
+        return _241_FIELDS
+    elif version == '1.1':
+        return _314_FIELDS
+    elif version == '1.2':
+        return _345_FIELDS
+    elif version in ('1.3', '2.1'):
+        # avoid adding field names if already there
+        return _345_FIELDS + tuple(f for f in _566_FIELDS if f not in _345_FIELDS)
+    elif version == '2.0':
+        return _426_FIELDS
+    raise MetadataUnrecognizedVersionError(version)
+
+
+def _best_version(fields):
+    """Detect the best version depending on the fields used."""
+    def _has_marker(keys, markers):
+        for marker in markers:
+            if marker in keys:
+                return True
+        return False
+
+    keys = []
+    for key, value in fields.items():
+        if value in ([], 'UNKNOWN', None):
+            continue
+        keys.append(key)
+
+    possible_versions = ['1.0', '1.1', '1.2', '1.3', '2.0', '2.1']
+
+    # first let's try to see if a field is not part of one of the version
+    for key in keys:
+        if key not in _241_FIELDS and '1.0' in possible_versions:
+            possible_versions.remove('1.0')
+            logger.debug('Removed 1.0 due to %s', key)
+        if key not in _314_FIELDS and '1.1' in possible_versions:
+            possible_versions.remove('1.1')
+            logger.debug('Removed 1.1 due to %s', key)
+        if key not in _345_FIELDS and '1.2' in possible_versions:
+            possible_versions.remove('1.2')
+            logger.debug('Removed 1.2 due to %s', key)
+        if key not in _566_FIELDS and '1.3' in possible_versions:
+            possible_versions.remove('1.3')
+            logger.debug('Removed 1.3 due to %s', key)
+        if key not in _566_FIELDS and '2.1' in possible_versions:
+            if key != 'Description':  # In 2.1, description allowed after headers
+                possible_versions.remove('2.1')
+                logger.debug('Removed 2.1 due to %s', key)
+        if key not in _426_FIELDS and '2.0' in possible_versions:
+            possible_versions.remove('2.0')
+            logger.debug('Removed 2.0 due to %s', key)
+
+    # possible_version contains qualified versions
+    if len(possible_versions) == 1:
+        return possible_versions[0]   # found !
+    elif len(possible_versions) == 0:
+        logger.debug('Out of options - unknown metadata set: %s', fields)
+        raise MetadataConflictError('Unknown metadata set')
+
+    # let's see if one unique marker is found
+    is_1_1 = '1.1' in possible_versions and _has_marker(keys, _314_MARKERS)
+    is_1_2 = '1.2' in possible_versions and _has_marker(keys, _345_MARKERS)
+    is_2_1 = '2.1' in possible_versions and _has_marker(keys, _566_MARKERS)
+    is_2_0 = '2.0' in possible_versions and _has_marker(keys, _426_MARKERS)
+    if int(is_1_1) + int(is_1_2) + int(is_2_1) + int(is_2_0) > 1:
+        raise MetadataConflictError('You used incompatible 1.1/1.2/2.0/2.1 fields')
+
+    # we have the choice, 1.0, or 1.2, or 2.0
+    #   - 1.0 has a broken Summary field but works with all tools
+    #   - 1.1 is to avoid
+    #   - 1.2 fixes Summary but has little adoption
+    #   - 2.0 adds more features and is very new
+    if not is_1_1 and not is_1_2 and not is_2_1 and not is_2_0:
+        # we couldn't find any specific marker
+        if PKG_INFO_PREFERRED_VERSION in possible_versions:
+            return PKG_INFO_PREFERRED_VERSION
+    if is_1_1:
+        return '1.1'
+    if is_1_2:
+        return '1.2'
+    if is_2_1:
+        return '2.1'
+
+    return '2.0'
+
+# This follows the rules about transforming keys as described in
+# https://www.python.org/dev/peps/pep-0566/#id17
+_ATTR2FIELD = {
+    name.lower().replace("-", "_"): name for name in _ALL_FIELDS
+}
+_FIELD2ATTR = {field: attr for attr, field in _ATTR2FIELD.items()}
+
+_PREDICATE_FIELDS = ('Requires-Dist', 'Obsoletes-Dist', 'Provides-Dist')
+_VERSIONS_FIELDS = ('Requires-Python',)
+_VERSION_FIELDS = ('Version',)
+_LISTFIELDS = ('Platform', 'Classifier', 'Obsoletes',
+               'Requires', 'Provides', 'Obsoletes-Dist',
+               'Provides-Dist', 'Requires-Dist', 'Requires-External',
+               'Project-URL', 'Supported-Platform', 'Setup-Requires-Dist',
+               'Provides-Extra', 'Extension')
+_LISTTUPLEFIELDS = ('Project-URL',)
+
+_ELEMENTSFIELD = ('Keywords',)
+
+_UNICODEFIELDS = ('Author', 'Maintainer', 'Summary', 'Description')
+
+_MISSING = object()
+
+_FILESAFE = re.compile('[^A-Za-z0-9.]+')
+
+
+def _get_name_and_version(name, version, for_filename=False):
+    """Return the distribution name with version.
+
+    If for_filename is true, return a filename-escaped form."""
+    if for_filename:
+        # For both name and version any runs of non-alphanumeric or '.'
+        # characters are replaced with a single '-'.  Additionally any
+        # spaces in the version string become '.'
+        name = _FILESAFE.sub('-', name)
+        version = _FILESAFE.sub('-', version.replace(' ', '.'))
+    return '%s-%s' % (name, version)
+
+
+class LegacyMetadata(object):
+    """The legacy metadata of a release.
+
+    Supports versions 1.0, 1.1, 1.2, 2.0 and 1.3/2.1 (auto-detected). You can
+    instantiate the class with one of these arguments (or none):
+    - *path*, the path to a metadata file
+    - *fileobj* give a file-like object with metadata as content
+    - *mapping* is a dict-like object
+    - *scheme* is a version scheme name
+    """
+    # TODO document the mapping API and UNKNOWN default key
+
+    def __init__(self, path=None, fileobj=None, mapping=None,
+                 scheme='default'):
+        if [path, fileobj, mapping].count(None) < 2:
+            raise TypeError('path, fileobj and mapping are exclusive')
+        self._fields = {}
+        self.requires_files = []
+        self._dependencies = None
+        self.scheme = scheme
+        if path is not None:
+            self.read(path)
+        elif fileobj is not None:
+            self.read_file(fileobj)
+        elif mapping is not None:
+            self.update(mapping)
+            self.set_metadata_version()
+
+    def set_metadata_version(self):
+        self._fields['Metadata-Version'] = _best_version(self._fields)
+
+    def _write_field(self, fileobj, name, value):
+        fileobj.write('%s: %s\n' % (name, value))
+
+    def __getitem__(self, name):
+        return self.get(name)
+
+    def __setitem__(self, name, value):
+        return self.set(name, value)
+
+    def __delitem__(self, name):
+        field_name = self._convert_name(name)
+        try:
+            del self._fields[field_name]
+        except KeyError:
+            raise KeyError(name)
+
+    def __contains__(self, name):
+        return (name in self._fields or
+                self._convert_name(name) in self._fields)
+
+    def _convert_name(self, name):
+        if name in _ALL_FIELDS:
+            return name
+        name = name.replace('-', '_').lower()
+        return _ATTR2FIELD.get(name, name)
+
+    def _default_value(self, name):
+        if name in _LISTFIELDS or name in _ELEMENTSFIELD:
+            return []
+        return 'UNKNOWN'
+
+    def _remove_line_prefix(self, value):
+        if self.metadata_version in ('1.0', '1.1'):
+            return _LINE_PREFIX_PRE_1_2.sub('\n', value)
+        else:
+            return _LINE_PREFIX_1_2.sub('\n', value)
+
+    def __getattr__(self, name):
+        if name in _ATTR2FIELD:
+            return self[name]
+        raise AttributeError(name)
+
+    #
+    # Public API
+    #
+
+#    dependencies = property(_get_dependencies, _set_dependencies)
+
+    def get_fullname(self, filesafe=False):
+        """Return the distribution name with version.
+
+        If filesafe is true, return a filename-escaped form."""
+        return _get_name_and_version(self['Name'], self['Version'], filesafe)
+
+    def is_field(self, name):
+        """return True if name is a valid metadata key"""
+        name = self._convert_name(name)
+        return name in _ALL_FIELDS
+
+    def is_multi_field(self, name):
+        name = self._convert_name(name)
+        return name in _LISTFIELDS
+
+    def read(self, filepath):
+        """Read the metadata values from a file path."""
+        fp = codecs.open(filepath, 'r', encoding='utf-8')
+        try:
+            self.read_file(fp)
+        finally:
+            fp.close()
+
+    def read_file(self, fileob):
+        """Read the metadata values from a file object."""
+        msg = message_from_file(fileob)
+        self._fields['Metadata-Version'] = msg['metadata-version']
+
+        # When reading, get all the fields we can
+        for field in _ALL_FIELDS:
+            if field not in msg:
+                continue
+            if field in _LISTFIELDS:
+                # we can have multiple lines
+                values = msg.get_all(field)
+                if field in _LISTTUPLEFIELDS and values is not None:
+                    values = [tuple(value.split(',')) for value in values]
+                self.set(field, values)
+            else:
+                # single line
+                value = msg[field]
+                if value is not None and value != 'UNKNOWN':
+                    self.set(field, value)
+
+        # PEP 566 specifies that the body be used for the description, if
+        # available
+        body = msg.get_payload()
+        self["Description"] = body if body else self["Description"]
+        # logger.debug('Attempting to set metadata for %s', self)
+        # self.set_metadata_version()
+
+    def write(self, filepath, skip_unknown=False):
+        """Write the metadata fields to filepath."""
+        fp = codecs.open(filepath, 'w', encoding='utf-8')
+        try:
+            self.write_file(fp, skip_unknown)
+        finally:
+            fp.close()
+
+    def write_file(self, fileobject, skip_unknown=False):
+        """Write the PKG-INFO format data to a file object."""
+        self.set_metadata_version()
+
+        for field in _version2fieldlist(self['Metadata-Version']):
+            values = self.get(field)
+            if skip_unknown and values in ('UNKNOWN', [], ['UNKNOWN']):
+                continue
+            if field in _ELEMENTSFIELD:
+                self._write_field(fileobject, field, ','.join(values))
+                continue
+            if field not in _LISTFIELDS:
+                if field == 'Description':
+                    if self.metadata_version in ('1.0', '1.1'):
+                        values = values.replace('\n', '\n        ')
+                    else:
+                        values = values.replace('\n', '\n       |')
+                values = [values]
+
+            if field in _LISTTUPLEFIELDS:
+                values = [','.join(value) for value in values]
+
+            for value in values:
+                self._write_field(fileobject, field, value)
+
+    def update(self, other=None, **kwargs):
+        """Set metadata values from the given iterable `other` and kwargs.
+
+        Behavior is like `dict.update`: If `other` has a ``keys`` method,
+        they are looped over and ``self[key]`` is assigned ``other[key]``.
+        Else, ``other`` is an iterable of ``(key, value)`` iterables.
+
+        Keys that don't match a metadata field or that have an empty value are
+        dropped.
+        """
+        def _set(key, value):
+            if key in _ATTR2FIELD and value:
+                self.set(self._convert_name(key), value)
+
+        if not other:
+            # other is None or empty container
+            pass
+        elif hasattr(other, 'keys'):
+            for k in other.keys():
+                _set(k, other[k])
+        else:
+            for k, v in other:
+                _set(k, v)
+
+        if kwargs:
+            for k, v in kwargs.items():
+                _set(k, v)
+
+    def set(self, name, value):
+        """Control then set a metadata field."""
+        name = self._convert_name(name)
+
+        if ((name in _ELEMENTSFIELD or name == 'Platform') and
+            not isinstance(value, (list, tuple))):
+            if isinstance(value, string_types):
+                value = [v.strip() for v in value.split(',')]
+            else:
+                value = []
+        elif (name in _LISTFIELDS and
+              not isinstance(value, (list, tuple))):
+            if isinstance(value, string_types):
+                value = [value]
+            else:
+                value = []
+
+        if logger.isEnabledFor(logging.WARNING):
+            project_name = self['Name']
+
+            scheme = get_scheme(self.scheme)
+            if name in _PREDICATE_FIELDS and value is not None:
+                for v in value:
+                    # check that the values are valid
+                    if not scheme.is_valid_matcher(v.split(';')[0]):
+                        logger.warning(
+                            "'%s': '%s' is not valid (field '%s')",
+                            project_name, v, name)
+            # FIXME this rejects UNKNOWN, is that right?
+            elif name in _VERSIONS_FIELDS and value is not None:
+                if not scheme.is_valid_constraint_list(value):
+                    logger.warning("'%s': '%s' is not a valid version (field '%s')",
+                                   project_name, value, name)
+            elif name in _VERSION_FIELDS and value is not None:
+                if not scheme.is_valid_version(value):
+                    logger.warning("'%s': '%s' is not a valid version (field '%s')",
+                                   project_name, value, name)
+
+        if name in _UNICODEFIELDS:
+            if name == 'Description':
+                value = self._remove_line_prefix(value)
+
+        self._fields[name] = value
+
+    def get(self, name, default=_MISSING):
+        """Get a metadata field."""
+        name = self._convert_name(name)
+        if name not in self._fields:
+            if default is _MISSING:
+                default = self._default_value(name)
+            return default
+        if name in _UNICODEFIELDS:
+            value = self._fields[name]
+            return value
+        elif name in _LISTFIELDS:
+            value = self._fields[name]
+            if value is None:
+                return []
+            res = []
+            for val in value:
+                if name not in _LISTTUPLEFIELDS:
+                    res.append(val)
+                else:
+                    # That's for Project-URL
+                    res.append((val[0], val[1]))
+            return res
+
+        elif name in _ELEMENTSFIELD:
+            value = self._fields[name]
+            if isinstance(value, string_types):
+                return value.split(',')
+        return self._fields[name]
+
+    def check(self, strict=False):
+        """Check if the metadata is compliant. If strict is True then raise if
+        no Name or Version are provided"""
+        self.set_metadata_version()
+
+        # XXX should check the versions (if the file was loaded)
+        missing, warnings = [], []
+
+        for attr in ('Name', 'Version'):  # required by PEP 345
+            if attr not in self:
+                missing.append(attr)
+
+        if strict and missing != []:
+            msg = 'missing required metadata: %s' % ', '.join(missing)
+            raise MetadataMissingError(msg)
+
+        for attr in ('Home-page', 'Author'):
+            if attr not in self:
+                missing.append(attr)
+
+        # checking metadata 1.2 (XXX needs to check 1.1, 1.0)
+        if self['Metadata-Version'] != '1.2':
+            return missing, warnings
+
+        scheme = get_scheme(self.scheme)
+
+        def are_valid_constraints(value):
+            for v in value:
+                if not scheme.is_valid_matcher(v.split(';')[0]):
+                    return False
+            return True
+
+        for fields, controller in ((_PREDICATE_FIELDS, are_valid_constraints),
+                                   (_VERSIONS_FIELDS,
+                                    scheme.is_valid_constraint_list),
+                                   (_VERSION_FIELDS,
+                                    scheme.is_valid_version)):
+            for field in fields:
+                value = self.get(field, None)
+                if value is not None and not controller(value):
+                    warnings.append("Wrong value for '%s': %s" % (field, value))
+
+        return missing, warnings
+
+    def todict(self, skip_missing=False):
+        """Return fields as a dict.
+
+        Field names will be converted to use the underscore-lowercase style
+        instead of hyphen-mixed case (i.e. home_page instead of Home-page).
+        This is as per https://www.python.org/dev/peps/pep-0566/#id17.
+        """
+        self.set_metadata_version()
+
+        fields = _version2fieldlist(self['Metadata-Version'])
+
+        data = {}
+
+        for field_name in fields:
+            if not skip_missing or field_name in self._fields:
+                key = _FIELD2ATTR[field_name]
+                if key != 'project_url':
+                    data[key] = self[field_name]
+                else:
+                    data[key] = [','.join(u) for u in self[field_name]]
+
+        return data
+
+    def add_requirements(self, requirements):
+        if self['Metadata-Version'] == '1.1':
+            # we can't have 1.1 metadata *and* Setuptools requires
+            for field in ('Obsoletes', 'Requires', 'Provides'):
+                if field in self:
+                    del self[field]
+        self['Requires-Dist'] += requirements
+
+    # Mapping API
+    # TODO could add iter* variants
+
+    def keys(self):
+        return list(_version2fieldlist(self['Metadata-Version']))
+
+    def __iter__(self):
+        for key in self.keys():
+            yield key
+
+    def values(self):
+        return [self[key] for key in self.keys()]
+
+    def items(self):
+        return [(key, self[key]) for key in self.keys()]
+
+    def __repr__(self):
+        return '<%s %s %s>' % (self.__class__.__name__, self.name,
+                               self.version)
+
+
+METADATA_FILENAME = 'pydist.json'
+WHEEL_METADATA_FILENAME = 'metadata.json'
+LEGACY_METADATA_FILENAME = 'METADATA'
+
+
+class Metadata(object):
+    """
+    The metadata of a release. This implementation uses 2.0 (JSON)
+    metadata where possible. If not possible, it wraps a LegacyMetadata
+    instance which handles the key-value metadata format.
+    """
+
+    METADATA_VERSION_MATCHER = re.compile(r'^\d+(\.\d+)*$')
+
+    NAME_MATCHER = re.compile('^[0-9A-Z]([0-9A-Z_.-]*[0-9A-Z])?$', re.I)
+
+    VERSION_MATCHER = PEP440_VERSION_RE
+
+    SUMMARY_MATCHER = re.compile('.{1,2047}')
+
+    METADATA_VERSION = '2.0'
+
+    GENERATOR = 'distlib (%s)' % __version__
+
+    MANDATORY_KEYS = {
+        'name': (),
+        'version': (),
+        'summary': ('legacy',),
+    }
+
+    INDEX_KEYS = ('name version license summary description author '
+                  'author_email keywords platform home_page classifiers '
+                  'download_url')
+
+    DEPENDENCY_KEYS = ('extras run_requires test_requires build_requires '
+                       'dev_requires provides meta_requires obsoleted_by '
+                       'supports_environments')
+
+    SYNTAX_VALIDATORS = {
+        'metadata_version': (METADATA_VERSION_MATCHER, ()),
+        'name': (NAME_MATCHER, ('legacy',)),
+        'version': (VERSION_MATCHER, ('legacy',)),
+        'summary': (SUMMARY_MATCHER, ('legacy',)),
+    }
+
+    __slots__ = ('_legacy', '_data', 'scheme')
+
+    def __init__(self, path=None, fileobj=None, mapping=None,
+                 scheme='default'):
+        if [path, fileobj, mapping].count(None) < 2:
+            raise TypeError('path, fileobj and mapping are exclusive')
+        self._legacy = None
+        self._data = None
+        self.scheme = scheme
+        #import pdb; pdb.set_trace()
+        if mapping is not None:
+            try:
+                self._validate_mapping(mapping, scheme)
+                self._data = mapping
+            except MetadataUnrecognizedVersionError:
+                self._legacy = LegacyMetadata(mapping=mapping, scheme=scheme)
+                self.validate()
+        else:
+            data = None
+            if path:
+                with open(path, 'rb') as f:
+                    data = f.read()
+            elif fileobj:
+                data = fileobj.read()
+            if data is None:
+                # Initialised with no args - to be added
+                self._data = {
+                    'metadata_version': self.METADATA_VERSION,
+                    'generator': self.GENERATOR,
+                }
+            else:
+                if not isinstance(data, text_type):
+                    data = data.decode('utf-8')
+                try:
+                    self._data = json.loads(data)
+                    self._validate_mapping(self._data, scheme)
+                except ValueError:
+                    # Note: MetadataUnrecognizedVersionError does not
+                    # inherit from ValueError (it's a DistlibException,
+                    # which should not inherit from ValueError).
+                    # The ValueError comes from the json.load - if that
+                    # succeeds and we get a validation error, we want
+                    # that to propagate
+                    self._legacy = LegacyMetadata(fileobj=StringIO(data),
+                                                  scheme=scheme)
+                    self.validate()
+
+    common_keys = set(('name', 'version', 'license', 'keywords', 'summary'))
+
+    none_list = (None, list)
+    none_dict = (None, dict)
+
+    mapped_keys = {
+        'run_requires': ('Requires-Dist', list),
+        'build_requires': ('Setup-Requires-Dist', list),
+        'dev_requires': none_list,
+        'test_requires': none_list,
+        'meta_requires': none_list,
+        'extras': ('Provides-Extra', list),
+        'modules': none_list,
+        'namespaces': none_list,
+        'exports': none_dict,
+        'commands': none_dict,
+        'classifiers': ('Classifier', list),
+        'source_url': ('Download-URL', None),
+        'metadata_version': ('Metadata-Version', None),
+    }
+
+    del none_list, none_dict
+
+    def __getattribute__(self, key):
+        common = object.__getattribute__(self, 'common_keys')
+        mapped = object.__getattribute__(self, 'mapped_keys')
+        if key in mapped:
+            lk, maker = mapped[key]
+            if self._legacy:
+                if lk is None:
+                    result = None if maker is None else maker()
+                else:
+                    result = self._legacy.get(lk)
+            else:
+                value = None if maker is None else maker()
+                if key not in ('commands', 'exports', 'modules', 'namespaces',
+                               'classifiers'):
+                    result = self._data.get(key, value)
+                else:
+                    # special cases for PEP 459
+                    sentinel = object()
+                    result = sentinel
+                    d = self._data.get('extensions')
+                    if d:
+                        if key == 'commands':
+                            result = d.get('python.commands', value)
+                        elif key == 'classifiers':
+                            d = d.get('python.details')
+                            if d:
+                                result = d.get(key, value)
+                        else:
+                            d = d.get('python.exports')
+                            if not d:
+                                d = self._data.get('python.exports')
+                            if d:
+                                result = d.get(key, value)
+                    if result is sentinel:
+                        result = value
+        elif key not in common:
+            result = object.__getattribute__(self, key)
+        elif self._legacy:
+            result = self._legacy.get(key)
+        else:
+            result = self._data.get(key)
+        return result
+
+    def _validate_value(self, key, value, scheme=None):
+        if key in self.SYNTAX_VALIDATORS:
+            pattern, exclusions = self.SYNTAX_VALIDATORS[key]
+            if (scheme or self.scheme) not in exclusions:
+                m = pattern.match(value)
+                if not m:
+                    raise MetadataInvalidError("'%s' is an invalid value for "
+                                               "the '%s' property" % (value,
+                                                                    key))
+
+    def __setattr__(self, key, value):
+        self._validate_value(key, value)
+        common = object.__getattribute__(self, 'common_keys')
+        mapped = object.__getattribute__(self, 'mapped_keys')
+        if key in mapped:
+            lk, _ = mapped[key]
+            if self._legacy:
+                if lk is None:
+                    raise NotImplementedError
+                self._legacy[lk] = value
+            elif key not in ('commands', 'exports', 'modules', 'namespaces',
+                             'classifiers'):
+                self._data[key] = value
+            else:
+                # special cases for PEP 459
+                d = self._data.setdefault('extensions', {})
+                if key == 'commands':
+                    d['python.commands'] = value
+                elif key == 'classifiers':
+                    d = d.setdefault('python.details', {})
+                    d[key] = value
+                else:
+                    d = d.setdefault('python.exports', {})
+                    d[key] = value
+        elif key not in common:
+            object.__setattr__(self, key, value)
+        else:
+            if key == 'keywords':
+                if isinstance(value, string_types):
+                    value = value.strip()
+                    if value:
+                        value = value.split()
+                    else:
+                        value = []
+            if self._legacy:
+                self._legacy[key] = value
+            else:
+                self._data[key] = value
+
+    @property
+    def name_and_version(self):
+        return _get_name_and_version(self.name, self.version, True)
+
+    @property
+    def provides(self):
+        if self._legacy:
+            result = self._legacy['Provides-Dist']
+        else:
+            result = self._data.setdefault('provides', [])
+        s = '%s (%s)' % (self.name, self.version)
+        if s not in result:
+            result.append(s)
+        return result
+
+    @provides.setter
+    def provides(self, value):
+        if self._legacy:
+            self._legacy['Provides-Dist'] = value
+        else:
+            self._data['provides'] = value
+
+    def get_requirements(self, reqts, extras=None, env=None):
+        """
+        Base method to get dependencies, given a set of extras
+        to satisfy and an optional environment context.
+        :param reqts: A list of sometimes-wanted dependencies,
+                      perhaps dependent on extras and environment.
+        :param extras: A list of optional components being requested.
+        :param env: An optional environment for marker evaluation.
+        """
+        if self._legacy:
+            result = reqts
+        else:
+            result = []
+            extras = get_extras(extras or [], self.extras)
+            for d in reqts:
+                if 'extra' not in d and 'environment' not in d:
+                    # unconditional
+                    include = True
+                else:
+                    if 'extra' not in d:
+                        # Not extra-dependent - only environment-dependent
+                        include = True
+                    else:
+                        include = d.get('extra') in extras
+                    if include:
+                        # Not excluded because of extras, check environment
+                        marker = d.get('environment')
+                        if marker:
+                            include = interpret(marker, env)
+                if include:
+                    result.extend(d['requires'])
+            for key in ('build', 'dev', 'test'):
+                e = ':%s:' % key
+                if e in extras:
+                    extras.remove(e)
+                    # A recursive call, but it should terminate since 'test'
+                    # has been removed from the extras
+                    reqts = self._data.get('%s_requires' % key, [])
+                    result.extend(self.get_requirements(reqts, extras=extras,
+                                                        env=env))
+        return result
+
+    @property
+    def dictionary(self):
+        if self._legacy:
+            return self._from_legacy()
+        return self._data
+
+    @property
+    def dependencies(self):
+        if self._legacy:
+            raise NotImplementedError
+        else:
+            return extract_by_key(self._data, self.DEPENDENCY_KEYS)
+
+    @dependencies.setter
+    def dependencies(self, value):
+        if self._legacy:
+            raise NotImplementedError
+        else:
+            self._data.update(value)
+
+    def _validate_mapping(self, mapping, scheme):
+        if mapping.get('metadata_version') != self.METADATA_VERSION:
+            raise MetadataUnrecognizedVersionError()
+        missing = []
+        for key, exclusions in self.MANDATORY_KEYS.items():
+            if key not in mapping:
+                if scheme not in exclusions:
+                    missing.append(key)
+        if missing:
+            msg = 'Missing metadata items: %s' % ', '.join(missing)
+            raise MetadataMissingError(msg)
+        for k, v in mapping.items():
+            self._validate_value(k, v, scheme)
+
+    def validate(self):
+        if self._legacy:
+            missing, warnings = self._legacy.check(True)
+            if missing or warnings:
+                logger.warning('Metadata: missing: %s, warnings: %s',
+                               missing, warnings)
+        else:
+            self._validate_mapping(self._data, self.scheme)
+
+    def todict(self):
+        if self._legacy:
+            return self._legacy.todict(True)
+        else:
+            result = extract_by_key(self._data, self.INDEX_KEYS)
+            return result
+
+    def _from_legacy(self):
+        assert self._legacy and not self._data
+        result = {
+            'metadata_version': self.METADATA_VERSION,
+            'generator': self.GENERATOR,
+        }
+        lmd = self._legacy.todict(True)     # skip missing ones
+        for k in ('name', 'version', 'license', 'summary', 'description',
+                  'classifier'):
+            if k in lmd:
+                if k == 'classifier':
+                    nk = 'classifiers'
+                else:
+                    nk = k
+                result[nk] = lmd[k]
+        kw = lmd.get('Keywords', [])
+        if kw == ['']:
+            kw = []
+        result['keywords'] = kw
+        keys = (('requires_dist', 'run_requires'),
+                ('setup_requires_dist', 'build_requires'))
+        for ok, nk in keys:
+            if ok in lmd and lmd[ok]:
+                result[nk] = [{'requires': lmd[ok]}]
+        result['provides'] = self.provides
+        author = {}
+        maintainer = {}
+        return result
+
+    LEGACY_MAPPING = {
+        'name': 'Name',
+        'version': 'Version',
+        ('extensions', 'python.details', 'license'): 'License',
+        'summary': 'Summary',
+        'description': 'Description',
+        ('extensions', 'python.project', 'project_urls', 'Home'): 'Home-page',
+        ('extensions', 'python.project', 'contacts', 0, 'name'): 'Author',
+        ('extensions', 'python.project', 'contacts', 0, 'email'): 'Author-email',
+        'source_url': 'Download-URL',
+        ('extensions', 'python.details', 'classifiers'): 'Classifier',
+    }
+
+    def _to_legacy(self):
+        def process_entries(entries):
+            reqts = set()
+            for e in entries:
+                extra = e.get('extra')
+                env = e.get('environment')
+                rlist = e['requires']
+                for r in rlist:
+                    if not env and not extra:
+                        reqts.add(r)
+                    else:
+                        marker = ''
+                        if extra:
+                            marker = 'extra == "%s"' % extra
+                        if env:
+                            if marker:
+                                marker = '(%s) and %s' % (env, marker)
+                            else:
+                                marker = env
+                        reqts.add(';'.join((r, marker)))
+            return reqts
+
+        assert self._data and not self._legacy
+        result = LegacyMetadata()
+        nmd = self._data
+        # import pdb; pdb.set_trace()
+        for nk, ok in self.LEGACY_MAPPING.items():
+            if not isinstance(nk, tuple):
+                if nk in nmd:
+                    result[ok] = nmd[nk]
+            else:
+                d = nmd
+                found = True
+                for k in nk:
+                    try:
+                        d = d[k]
+                    except (KeyError, IndexError):
+                        found = False
+                        break
+                if found:
+                    result[ok] = d
+        r1 = process_entries(self.run_requires + self.meta_requires)
+        r2 = process_entries(self.build_requires + self.dev_requires)
+        if self.extras:
+            result['Provides-Extra'] = sorted(self.extras)
+        result['Requires-Dist'] = sorted(r1)
+        result['Setup-Requires-Dist'] = sorted(r2)
+        # TODO: any other fields wanted
+        return result
+
+    def write(self, path=None, fileobj=None, legacy=False, skip_unknown=True):
+        if [path, fileobj].count(None) != 1:
+            raise ValueError('Exactly one of path and fileobj is needed')
+        self.validate()
+        if legacy:
+            if self._legacy:
+                legacy_md = self._legacy
+            else:
+                legacy_md = self._to_legacy()
+            if path:
+                legacy_md.write(path, skip_unknown=skip_unknown)
+            else:
+                legacy_md.write_file(fileobj, skip_unknown=skip_unknown)
+        else:
+            if self._legacy:
+                d = self._from_legacy()
+            else:
+                d = self._data
+            if fileobj:
+                json.dump(d, fileobj, ensure_ascii=True, indent=2,
+                          sort_keys=True)
+            else:
+                with codecs.open(path, 'w', 'utf-8') as f:
+                    json.dump(d, f, ensure_ascii=True, indent=2,
+                              sort_keys=True)
+
+    def add_requirements(self, requirements):
+        if self._legacy:
+            self._legacy.add_requirements(requirements)
+        else:
+            run_requires = self._data.setdefault('run_requires', [])
+            always = None
+            for entry in run_requires:
+                if 'environment' not in entry and 'extra' not in entry:
+                    always = entry
+                    break
+            if always is None:
+                always = { 'requires': requirements }
+                run_requires.insert(0, always)
+            else:
+                rset = set(always['requires']) | set(requirements)
+                always['requires'] = sorted(rset)
+
+    def __repr__(self):
+        name = self.name or '(no name)'
+        version = self.version or 'no version'
+        return '<%s %s %s (%s)>' % (self.__class__.__name__,
+                                    self.metadata_version, name, version)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/resources.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/resources.py
new file mode 100644
index 0000000..fef52aa
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/resources.py
@@ -0,0 +1,358 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013-2017 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+from __future__ import unicode_literals
+
+import bisect
+import io
+import logging
+import os
+import pkgutil
+import sys
+import types
+import zipimport
+
+from . import DistlibException
+from .util import cached_property, get_cache_base, Cache
+
+logger = logging.getLogger(__name__)
+
+
+cache = None    # created when needed
+
+
+class ResourceCache(Cache):
+    def __init__(self, base=None):
+        if base is None:
+            # Use native string to avoid issues on 2.x: see Python #20140.
+            base = os.path.join(get_cache_base(), str('resource-cache'))
+        super(ResourceCache, self).__init__(base)
+
+    def is_stale(self, resource, path):
+        """
+        Is the cache stale for the given resource?
+
+        :param resource: The :class:`Resource` being cached.
+        :param path: The path of the resource in the cache.
+        :return: True if the cache is stale.
+        """
+        # Cache invalidation is a hard problem :-)
+        return True
+
+    def get(self, resource):
+        """
+        Get a resource into the cache,
+
+        :param resource: A :class:`Resource` instance.
+        :return: The pathname of the resource in the cache.
+        """
+        prefix, path = resource.finder.get_cache_info(resource)
+        if prefix is None:
+            result = path
+        else:
+            result = os.path.join(self.base, self.prefix_to_dir(prefix), path)
+            dirname = os.path.dirname(result)
+            if not os.path.isdir(dirname):
+                os.makedirs(dirname)
+            if not os.path.exists(result):
+                stale = True
+            else:
+                stale = self.is_stale(resource, path)
+            if stale:
+                # write the bytes of the resource to the cache location
+                with open(result, 'wb') as f:
+                    f.write(resource.bytes)
+        return result
+
+
+class ResourceBase(object):
+    def __init__(self, finder, name):
+        self.finder = finder
+        self.name = name
+
+
+class Resource(ResourceBase):
+    """
+    A class representing an in-package resource, such as a data file. This is
+    not normally instantiated by user code, but rather by a
+    :class:`ResourceFinder` which manages the resource.
+    """
+    is_container = False        # Backwards compatibility
+
+    def as_stream(self):
+        """
+        Get the resource as a stream.
+
+        This is not a property to make it obvious that it returns a new stream
+        each time.
+        """
+        return self.finder.get_stream(self)
+
+    @cached_property
+    def file_path(self):
+        global cache
+        if cache is None:
+            cache = ResourceCache()
+        return cache.get(self)
+
+    @cached_property
+    def bytes(self):
+        return self.finder.get_bytes(self)
+
+    @cached_property
+    def size(self):
+        return self.finder.get_size(self)
+
+
+class ResourceContainer(ResourceBase):
+    is_container = True     # Backwards compatibility
+
+    @cached_property
+    def resources(self):
+        return self.finder.get_resources(self)
+
+
+class ResourceFinder(object):
+    """
+    Resource finder for file system resources.
+    """
+
+    if sys.platform.startswith('java'):
+        skipped_extensions = ('.pyc', '.pyo', '.class')
+    else:
+        skipped_extensions = ('.pyc', '.pyo')
+
+    def __init__(self, module):
+        self.module = module
+        self.loader = getattr(module, '__loader__', None)
+        self.base = os.path.dirname(getattr(module, '__file__', ''))
+
+    def _adjust_path(self, path):
+        return os.path.realpath(path)
+
+    def _make_path(self, resource_name):
+        # Issue #50: need to preserve type of path on Python 2.x
+        # like os.path._get_sep
+        if isinstance(resource_name, bytes):    # should only happen on 2.x
+            sep = b'/'
+        else:
+            sep = '/'
+        parts = resource_name.split(sep)
+        parts.insert(0, self.base)
+        result = os.path.join(*parts)
+        return self._adjust_path(result)
+
+    def _find(self, path):
+        return os.path.exists(path)
+
+    def get_cache_info(self, resource):
+        return None, resource.path
+
+    def find(self, resource_name):
+        path = self._make_path(resource_name)
+        if not self._find(path):
+            result = None
+        else:
+            if self._is_directory(path):
+                result = ResourceContainer(self, resource_name)
+            else:
+                result = Resource(self, resource_name)
+            result.path = path
+        return result
+
+    def get_stream(self, resource):
+        return open(resource.path, 'rb')
+
+    def get_bytes(self, resource):
+        with open(resource.path, 'rb') as f:
+            return f.read()
+
+    def get_size(self, resource):
+        return os.path.getsize(resource.path)
+
+    def get_resources(self, resource):
+        def allowed(f):
+            return (f != '__pycache__' and not
+                    f.endswith(self.skipped_extensions))
+        return set([f for f in os.listdir(resource.path) if allowed(f)])
+
+    def is_container(self, resource):
+        return self._is_directory(resource.path)
+
+    _is_directory = staticmethod(os.path.isdir)
+
+    def iterator(self, resource_name):
+        resource = self.find(resource_name)
+        if resource is not None:
+            todo = [resource]
+            while todo:
+                resource = todo.pop(0)
+                yield resource
+                if resource.is_container:
+                    rname = resource.name
+                    for name in resource.resources:
+                        if not rname:
+                            new_name = name
+                        else:
+                            new_name = '/'.join([rname, name])
+                        child = self.find(new_name)
+                        if child.is_container:
+                            todo.append(child)
+                        else:
+                            yield child
+
+
+class ZipResourceFinder(ResourceFinder):
+    """
+    Resource finder for resources in .zip files.
+    """
+    def __init__(self, module):
+        super(ZipResourceFinder, self).__init__(module)
+        archive = self.loader.archive
+        self.prefix_len = 1 + len(archive)
+        # PyPy doesn't have a _files attr on zipimporter, and you can't set one
+        if hasattr(self.loader, '_files'):
+            self._files = self.loader._files
+        else:
+            self._files = zipimport._zip_directory_cache[archive]
+        self.index = sorted(self._files)
+
+    def _adjust_path(self, path):
+        return path
+
+    def _find(self, path):
+        path = path[self.prefix_len:]
+        if path in self._files:
+            result = True
+        else:
+            if path and path[-1] != os.sep:
+                path = path + os.sep
+            i = bisect.bisect(self.index, path)
+            try:
+                result = self.index[i].startswith(path)
+            except IndexError:
+                result = False
+        if not result:
+            logger.debug('_find failed: %r %r', path, self.loader.prefix)
+        else:
+            logger.debug('_find worked: %r %r', path, self.loader.prefix)
+        return result
+
+    def get_cache_info(self, resource):
+        prefix = self.loader.archive
+        path = resource.path[1 + len(prefix):]
+        return prefix, path
+
+    def get_bytes(self, resource):
+        return self.loader.get_data(resource.path)
+
+    def get_stream(self, resource):
+        return io.BytesIO(self.get_bytes(resource))
+
+    def get_size(self, resource):
+        path = resource.path[self.prefix_len:]
+        return self._files[path][3]
+
+    def get_resources(self, resource):
+        path = resource.path[self.prefix_len:]
+        if path and path[-1] != os.sep:
+            path += os.sep
+        plen = len(path)
+        result = set()
+        i = bisect.bisect(self.index, path)
+        while i < len(self.index):
+            if not self.index[i].startswith(path):
+                break
+            s = self.index[i][plen:]
+            result.add(s.split(os.sep, 1)[0])   # only immediate children
+            i += 1
+        return result
+
+    def _is_directory(self, path):
+        path = path[self.prefix_len:]
+        if path and path[-1] != os.sep:
+            path += os.sep
+        i = bisect.bisect(self.index, path)
+        try:
+            result = self.index[i].startswith(path)
+        except IndexError:
+            result = False
+        return result
+
+
+_finder_registry = {
+    type(None): ResourceFinder,
+    zipimport.zipimporter: ZipResourceFinder
+}
+
+try:
+    # In Python 3.6, _frozen_importlib -> _frozen_importlib_external
+    try:
+        import _frozen_importlib_external as _fi
+    except ImportError:
+        import _frozen_importlib as _fi
+    _finder_registry[_fi.SourceFileLoader] = ResourceFinder
+    _finder_registry[_fi.FileFinder] = ResourceFinder
+    # See issue #146
+    _finder_registry[_fi.SourcelessFileLoader] = ResourceFinder
+    del _fi
+except (ImportError, AttributeError):
+    pass
+
+
+def register_finder(loader, finder_maker):
+    _finder_registry[type(loader)] = finder_maker
+
+
+_finder_cache = {}
+
+
+def finder(package):
+    """
+    Return a resource finder for a package.
+    :param package: The name of the package.
+    :return: A :class:`ResourceFinder` instance for the package.
+    """
+    if package in _finder_cache:
+        result = _finder_cache[package]
+    else:
+        if package not in sys.modules:
+            __import__(package)
+        module = sys.modules[package]
+        path = getattr(module, '__path__', None)
+        if path is None:
+            raise DistlibException('You cannot get a finder for a module, '
+                                   'only for a package')
+        loader = getattr(module, '__loader__', None)
+        finder_maker = _finder_registry.get(type(loader))
+        if finder_maker is None:
+            raise DistlibException('Unable to locate finder for %r' % package)
+        result = finder_maker(module)
+        _finder_cache[package] = result
+    return result
+
+
+_dummy_module = types.ModuleType(str('__dummy__'))
+
+
+def finder_for_path(path):
+    """
+    Return a resource finder for a path, which should represent a container.
+
+    :param path: The path.
+    :return: A :class:`ResourceFinder` instance for the path.
+    """
+    result = None
+    # calls any path hooks, gets importer into cache
+    pkgutil.get_importer(path)
+    loader = sys.path_importer_cache.get(path)
+    finder = _finder_registry.get(type(loader))
+    if finder:
+        module = _dummy_module
+        module.__file__ = os.path.join(path, '')
+        module.__loader__ = loader
+        result = finder(module)
+    return result
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/scripts.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/scripts.py
new file mode 100644
index 0000000..913912c
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/scripts.py
@@ -0,0 +1,429 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013-2015 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+from io import BytesIO
+import logging
+import os
+import re
+import struct
+import sys
+
+from .compat import sysconfig, detect_encoding, ZipFile
+from .resources import finder
+from .util import (FileOperator, get_export_entry, convert_path,
+                   get_executable, get_platform, in_venv)
+
+logger = logging.getLogger(__name__)
+
+_DEFAULT_MANIFEST = '''
+
+
+ 
+
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+'''.strip()
+
+# check if Python is called on the first line with this expression
+FIRST_LINE_RE = re.compile(b'^#!.*pythonw?[0-9.]*([ \t].*)?$')
+SCRIPT_TEMPLATE = r'''# -*- coding: utf-8 -*-
+import re
+import sys
+from %(module)s import %(import_name)s
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
+    sys.exit(%(func)s())
+'''
+
+
+def enquote_executable(executable):
+    if ' ' in executable:
+        # make sure we quote only the executable in case of env
+        # for example /usr/bin/env "/dir with spaces/bin/jython"
+        # instead of "/usr/bin/env /dir with spaces/bin/jython"
+        # otherwise whole
+        if executable.startswith('/usr/bin/env '):
+            env, _executable = executable.split(' ', 1)
+            if ' ' in _executable and not _executable.startswith('"'):
+                executable = '%s "%s"' % (env, _executable)
+        else:
+            if not executable.startswith('"'):
+                executable = '"%s"' % executable
+    return executable
+
+# Keep the old name around (for now), as there is at least one project using it!
+_enquote_executable = enquote_executable
+
+class ScriptMaker(object):
+    """
+    A class to copy or create scripts from source scripts or callable
+    specifications.
+    """
+    script_template = SCRIPT_TEMPLATE
+
+    executable = None  # for shebangs
+
+    def __init__(self, source_dir, target_dir, add_launchers=True,
+                 dry_run=False, fileop=None):
+        self.source_dir = source_dir
+        self.target_dir = target_dir
+        self.add_launchers = add_launchers
+        self.force = False
+        self.clobber = False
+        # It only makes sense to set mode bits on POSIX.
+        self.set_mode = (os.name == 'posix') or (os.name == 'java' and
+                                                 os._name == 'posix')
+        self.variants = set(('', 'X.Y'))
+        self._fileop = fileop or FileOperator(dry_run)
+
+        self._is_nt = os.name == 'nt' or (
+            os.name == 'java' and os._name == 'nt')
+        self.version_info = sys.version_info
+
+    def _get_alternate_executable(self, executable, options):
+        if options.get('gui', False) and self._is_nt:  # pragma: no cover
+            dn, fn = os.path.split(executable)
+            fn = fn.replace('python', 'pythonw')
+            executable = os.path.join(dn, fn)
+        return executable
+
+    if sys.platform.startswith('java'):  # pragma: no cover
+        def _is_shell(self, executable):
+            """
+            Determine if the specified executable is a script
+            (contains a #! line)
+            """
+            try:
+                with open(executable) as fp:
+                    return fp.read(2) == '#!'
+            except (OSError, IOError):
+                logger.warning('Failed to open %s', executable)
+                return False
+
+        def _fix_jython_executable(self, executable):
+            if self._is_shell(executable):
+                # Workaround for Jython is not needed on Linux systems.
+                import java
+
+                if java.lang.System.getProperty('os.name') == 'Linux':
+                    return executable
+            elif executable.lower().endswith('jython.exe'):
+                # Use wrapper exe for Jython on Windows
+                return executable
+            return '/usr/bin/env %s' % executable
+
+    def _build_shebang(self, executable, post_interp):
+        """
+        Build a shebang line. In the simple case (on Windows, or a shebang line
+        which is not too long or contains spaces) use a simple formulation for
+        the shebang. Otherwise, use /bin/sh as the executable, with a contrived
+        shebang which allows the script to run either under Python or sh, using
+        suitable quoting. Thanks to Harald Nordgren for his input.
+
+        See also: http://www.in-ulm.de/~mascheck/various/shebang/#length
+                  https://hg.mozilla.org/mozilla-central/file/tip/mach
+        """
+        if os.name != 'posix':
+            simple_shebang = True
+        else:
+            # Add 3 for '#!' prefix and newline suffix.
+            shebang_length = len(executable) + len(post_interp) + 3
+            if sys.platform == 'darwin':
+                max_shebang_length = 512
+            else:
+                max_shebang_length = 127
+            simple_shebang = ((b' ' not in executable) and
+                              (shebang_length <= max_shebang_length))
+
+        if simple_shebang:
+            result = b'#!' + executable + post_interp + b'\n'
+        else:
+            result = b'#!/bin/sh\n'
+            result += b"'''exec' " + executable + post_interp + b' "$0" "$@"\n'
+            result += b"' '''"
+        return result
+
+    def _get_shebang(self, encoding, post_interp=b'', options=None):
+        enquote = True
+        if self.executable:
+            executable = self.executable
+            enquote = False     # assume this will be taken care of
+        elif not sysconfig.is_python_build():
+            executable = get_executable()
+        elif in_venv():  # pragma: no cover
+            executable = os.path.join(sysconfig.get_path('scripts'),
+                            'python%s' % sysconfig.get_config_var('EXE'))
+        else:  # pragma: no cover
+            executable = os.path.join(
+                sysconfig.get_config_var('BINDIR'),
+               'python%s%s' % (sysconfig.get_config_var('VERSION'),
+                               sysconfig.get_config_var('EXE')))
+            if not os.path.isfile(executable):
+                # for Python builds from source on Windows, no Python executables with
+                # a version suffix are created, so we use python.exe
+                executable = os.path.join(sysconfig.get_config_var('BINDIR'),
+                                'python%s' % (sysconfig.get_config_var('EXE')))
+        if options:
+            executable = self._get_alternate_executable(executable, options)
+
+        if sys.platform.startswith('java'):  # pragma: no cover
+            executable = self._fix_jython_executable(executable)
+
+        # Normalise case for Windows - COMMENTED OUT
+        # executable = os.path.normcase(executable)
+        # N.B. The normalising operation above has been commented out: See
+        # issue #124. Although paths in Windows are generally case-insensitive,
+        # they aren't always. For example, a path containing a ẞ (which is a
+        # LATIN CAPITAL LETTER SHARP S - U+1E9E) is normcased to ß (which is a
+        # LATIN SMALL LETTER SHARP S' - U+00DF). The two are not considered by
+        # Windows as equivalent in path names.
+
+        # If the user didn't specify an executable, it may be necessary to
+        # cater for executable paths with spaces (not uncommon on Windows)
+        if enquote:
+            executable = enquote_executable(executable)
+        # Issue #51: don't use fsencode, since we later try to
+        # check that the shebang is decodable using utf-8.
+        executable = executable.encode('utf-8')
+        # in case of IronPython, play safe and enable frames support
+        if (sys.platform == 'cli' and '-X:Frames' not in post_interp
+            and '-X:FullFrames' not in post_interp):  # pragma: no cover
+            post_interp += b' -X:Frames'
+        shebang = self._build_shebang(executable, post_interp)
+        # Python parser starts to read a script using UTF-8 until
+        # it gets a #coding:xxx cookie. The shebang has to be the
+        # first line of a file, the #coding:xxx cookie cannot be
+        # written before. So the shebang has to be decodable from
+        # UTF-8.
+        try:
+            shebang.decode('utf-8')
+        except UnicodeDecodeError:  # pragma: no cover
+            raise ValueError(
+                'The shebang (%r) is not decodable from utf-8' % shebang)
+        # If the script is encoded to a custom encoding (use a
+        # #coding:xxx cookie), the shebang has to be decodable from
+        # the script encoding too.
+        if encoding != 'utf-8':
+            try:
+                shebang.decode(encoding)
+            except UnicodeDecodeError:  # pragma: no cover
+                raise ValueError(
+                    'The shebang (%r) is not decodable '
+                    'from the script encoding (%r)' % (shebang, encoding))
+        return shebang
+
+    def _get_script_text(self, entry):
+        return self.script_template % dict(module=entry.prefix,
+                                           import_name=entry.suffix.split('.')[0],
+                                           func=entry.suffix)
+
+    manifest = _DEFAULT_MANIFEST
+
+    def get_manifest(self, exename):
+        base = os.path.basename(exename)
+        return self.manifest % base
+
+    def _write_script(self, names, shebang, script_bytes, filenames, ext):
+        use_launcher = self.add_launchers and self._is_nt
+        linesep = os.linesep.encode('utf-8')
+        if not shebang.endswith(linesep):
+            shebang += linesep
+        if not use_launcher:
+            script_bytes = shebang + script_bytes
+        else:  # pragma: no cover
+            if ext == 'py':
+                launcher = self._get_launcher('t')
+            else:
+                launcher = self._get_launcher('w')
+            stream = BytesIO()
+            with ZipFile(stream, 'w') as zf:
+                zf.writestr('__main__.py', script_bytes)
+            zip_data = stream.getvalue()
+            script_bytes = launcher + shebang + zip_data
+        for name in names:
+            outname = os.path.join(self.target_dir, name)
+            if use_launcher:  # pragma: no cover
+                n, e = os.path.splitext(outname)
+                if e.startswith('.py'):
+                    outname = n
+                outname = '%s.exe' % outname
+                try:
+                    self._fileop.write_binary_file(outname, script_bytes)
+                except Exception:
+                    # Failed writing an executable - it might be in use.
+                    logger.warning('Failed to write executable - trying to '
+                                   'use .deleteme logic')
+                    dfname = '%s.deleteme' % outname
+                    if os.path.exists(dfname):
+                        os.remove(dfname)       # Not allowed to fail here
+                    os.rename(outname, dfname)  # nor here
+                    self._fileop.write_binary_file(outname, script_bytes)
+                    logger.debug('Able to replace executable using '
+                                 '.deleteme logic')
+                    try:
+                        os.remove(dfname)
+                    except Exception:
+                        pass    # still in use - ignore error
+            else:
+                if self._is_nt and not outname.endswith('.' + ext):  # pragma: no cover
+                    outname = '%s.%s' % (outname, ext)
+                if os.path.exists(outname) and not self.clobber:
+                    logger.warning('Skipping existing file %s', outname)
+                    continue
+                self._fileop.write_binary_file(outname, script_bytes)
+                if self.set_mode:
+                    self._fileop.set_executable_mode([outname])
+            filenames.append(outname)
+
+    variant_separator = '-'
+
+    def get_script_filenames(self, name):
+        result = set()
+        if '' in self.variants:
+            result.add(name)
+        if 'X' in self.variants:
+            result.add('%s%s' % (name, self.version_info[0]))
+        if 'X.Y' in self.variants:
+            result.add('%s%s%s.%s' % (name, self.variant_separator,
+                                      self.version_info[0], self.version_info[1]))
+        return result
+
+    def _make_script(self, entry, filenames, options=None):
+        post_interp = b''
+        if options:
+            args = options.get('interpreter_args', [])
+            if args:
+                args = ' %s' % ' '.join(args)
+                post_interp = args.encode('utf-8')
+        shebang = self._get_shebang('utf-8', post_interp, options=options)
+        script = self._get_script_text(entry).encode('utf-8')
+        scriptnames = self.get_script_filenames(entry.name)
+        if options and options.get('gui', False):
+            ext = 'pyw'
+        else:
+            ext = 'py'
+        self._write_script(scriptnames, shebang, script, filenames, ext)
+
+    def _copy_script(self, script, filenames):
+        adjust = False
+        script = os.path.join(self.source_dir, convert_path(script))
+        outname = os.path.join(self.target_dir, os.path.basename(script))
+        if not self.force and not self._fileop.newer(script, outname):
+            logger.debug('not copying %s (up-to-date)', script)
+            return
+
+        # Always open the file, but ignore failures in dry-run mode --
+        # that way, we'll get accurate feedback if we can read the
+        # script.
+        try:
+            f = open(script, 'rb')
+        except IOError:  # pragma: no cover
+            if not self.dry_run:
+                raise
+            f = None
+        else:
+            first_line = f.readline()
+            if not first_line:  # pragma: no cover
+                logger.warning('%s is an empty file (skipping)', script)
+                return
+
+            match = FIRST_LINE_RE.match(first_line.replace(b'\r\n', b'\n'))
+            if match:
+                adjust = True
+                post_interp = match.group(1) or b''
+
+        if not adjust:
+            if f:
+                f.close()
+            self._fileop.copy_file(script, outname)
+            if self.set_mode:
+                self._fileop.set_executable_mode([outname])
+            filenames.append(outname)
+        else:
+            logger.info('copying and adjusting %s -> %s', script,
+                        self.target_dir)
+            if not self._fileop.dry_run:
+                encoding, lines = detect_encoding(f.readline)
+                f.seek(0)
+                shebang = self._get_shebang(encoding, post_interp)
+                if b'pythonw' in first_line:  # pragma: no cover
+                    ext = 'pyw'
+                else:
+                    ext = 'py'
+                n = os.path.basename(outname)
+                self._write_script([n], shebang, f.read(), filenames, ext)
+            if f:
+                f.close()
+
+    @property
+    def dry_run(self):
+        return self._fileop.dry_run
+
+    @dry_run.setter
+    def dry_run(self, value):
+        self._fileop.dry_run = value
+
+    if os.name == 'nt' or (os.name == 'java' and os._name == 'nt'):  # pragma: no cover
+        # Executable launcher support.
+        # Launchers are from https://bitbucket.org/vinay.sajip/simple_launcher/
+
+        def _get_launcher(self, kind):
+            if struct.calcsize('P') == 8:   # 64-bit
+                bits = '64'
+            else:
+                bits = '32'
+            platform_suffix = '-arm' if get_platform() == 'win-arm64' else ''
+            name = '%s%s%s.exe' % (kind, bits, platform_suffix)
+            # Issue 31: don't hardcode an absolute package name, but
+            # determine it relative to the current package
+            distlib_package = __name__.rsplit('.', 1)[0]
+            resource = finder(distlib_package).find(name)
+            if not resource:
+                msg = ('Unable to find resource %s in package %s' % (name,
+                       distlib_package))
+                raise ValueError(msg)
+            return resource.bytes
+
+    # Public API follows
+
+    def make(self, specification, options=None):
+        """
+        Make a script.
+
+        :param specification: The specification, which is either a valid export
+                              entry specification (to make a script from a
+                              callable) or a filename (to make a script by
+                              copying from a source location).
+        :param options: A dictionary of options controlling script generation.
+        :return: A list of all absolute pathnames written to.
+        """
+        filenames = []
+        entry = get_export_entry(specification)
+        if entry is None:
+            self._copy_script(specification, filenames)
+        else:
+            self._make_script(entry, filenames, options=options)
+        return filenames
+
+    def make_multiple(self, specifications, options=None):
+        """
+        Take a list of specifications and make scripts from them,
+        :param specifications: A list of specifications.
+        :return: A list of all absolute pathnames written to,
+        """
+        filenames = []
+        for specification in specifications:
+            filenames.extend(self.make(specification, options))
+        return filenames
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/t32.exe b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/t32.exe
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diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/util.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/util.py
new file mode 100644
index 0000000..80bfc86
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/util.py
@@ -0,0 +1,1969 @@
+#
+# Copyright (C) 2012-2021 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+import codecs
+from collections import deque
+import contextlib
+import csv
+from glob import iglob as std_iglob
+import io
+import json
+import logging
+import os
+import py_compile
+import re
+import socket
+try:
+    import ssl
+except ImportError:  # pragma: no cover
+    ssl = None
+import subprocess
+import sys
+import tarfile
+import tempfile
+import textwrap
+
+try:
+    import threading
+except ImportError:  # pragma: no cover
+    import dummy_threading as threading
+import time
+
+from . import DistlibException
+from .compat import (string_types, text_type, shutil, raw_input, StringIO,
+                     cache_from_source, urlopen, urljoin, httplib, xmlrpclib,
+                     splittype, HTTPHandler, BaseConfigurator, valid_ident,
+                     Container, configparser, URLError, ZipFile, fsdecode,
+                     unquote, urlparse)
+
+logger = logging.getLogger(__name__)
+
+#
+# Requirement parsing code as per PEP 508
+#
+
+IDENTIFIER = re.compile(r'^([\w\.-]+)\s*')
+VERSION_IDENTIFIER = re.compile(r'^([\w\.*+-]+)\s*')
+COMPARE_OP = re.compile(r'^(<=?|>=?|={2,3}|[~!]=)\s*')
+MARKER_OP = re.compile(r'^((<=?)|(>=?)|={2,3}|[~!]=|in|not\s+in)\s*')
+OR = re.compile(r'^or\b\s*')
+AND = re.compile(r'^and\b\s*')
+NON_SPACE = re.compile(r'(\S+)\s*')
+STRING_CHUNK = re.compile(r'([\s\w\.{}()*+#:;,/?!~`@$%^&=|<>\[\]-]+)')
+
+
+def parse_marker(marker_string):
+    """
+    Parse a marker string and return a dictionary containing a marker expression.
+
+    The dictionary will contain keys "op", "lhs" and "rhs" for non-terminals in
+    the expression grammar, or strings. A string contained in quotes is to be
+    interpreted as a literal string, and a string not contained in quotes is a
+    variable (such as os_name).
+    """
+    def marker_var(remaining):
+        # either identifier, or literal string
+        m = IDENTIFIER.match(remaining)
+        if m:
+            result = m.groups()[0]
+            remaining = remaining[m.end():]
+        elif not remaining:
+            raise SyntaxError('unexpected end of input')
+        else:
+            q = remaining[0]
+            if q not in '\'"':
+                raise SyntaxError('invalid expression: %s' % remaining)
+            oq = '\'"'.replace(q, '')
+            remaining = remaining[1:]
+            parts = [q]
+            while remaining:
+                # either a string chunk, or oq, or q to terminate
+                if remaining[0] == q:
+                    break
+                elif remaining[0] == oq:
+                    parts.append(oq)
+                    remaining = remaining[1:]
+                else:
+                    m = STRING_CHUNK.match(remaining)
+                    if not m:
+                        raise SyntaxError('error in string literal: %s' % remaining)
+                    parts.append(m.groups()[0])
+                    remaining = remaining[m.end():]
+            else:
+                s = ''.join(parts)
+                raise SyntaxError('unterminated string: %s' % s)
+            parts.append(q)
+            result = ''.join(parts)
+            remaining = remaining[1:].lstrip() # skip past closing quote
+        return result, remaining
+
+    def marker_expr(remaining):
+        if remaining and remaining[0] == '(':
+            result, remaining = marker(remaining[1:].lstrip())
+            if remaining[0] != ')':
+                raise SyntaxError('unterminated parenthesis: %s' % remaining)
+            remaining = remaining[1:].lstrip()
+        else:
+            lhs, remaining = marker_var(remaining)
+            while remaining:
+                m = MARKER_OP.match(remaining)
+                if not m:
+                    break
+                op = m.groups()[0]
+                remaining = remaining[m.end():]
+                rhs, remaining = marker_var(remaining)
+                lhs = {'op': op, 'lhs': lhs, 'rhs': rhs}
+            result = lhs
+        return result, remaining
+
+    def marker_and(remaining):
+        lhs, remaining = marker_expr(remaining)
+        while remaining:
+            m = AND.match(remaining)
+            if not m:
+                break
+            remaining = remaining[m.end():]
+            rhs, remaining = marker_expr(remaining)
+            lhs = {'op': 'and', 'lhs': lhs, 'rhs': rhs}
+        return lhs, remaining
+
+    def marker(remaining):
+        lhs, remaining = marker_and(remaining)
+        while remaining:
+            m = OR.match(remaining)
+            if not m:
+                break
+            remaining = remaining[m.end():]
+            rhs, remaining = marker_and(remaining)
+            lhs = {'op': 'or', 'lhs': lhs, 'rhs': rhs}
+        return lhs, remaining
+
+    return marker(marker_string)
+
+
+def parse_requirement(req):
+    """
+    Parse a requirement passed in as a string. Return a Container
+    whose attributes contain the various parts of the requirement.
+    """
+    remaining = req.strip()
+    if not remaining or remaining.startswith('#'):
+        return None
+    m = IDENTIFIER.match(remaining)
+    if not m:
+        raise SyntaxError('name expected: %s' % remaining)
+    distname = m.groups()[0]
+    remaining = remaining[m.end():]
+    extras = mark_expr = versions = uri = None
+    if remaining and remaining[0] == '[':
+        i = remaining.find(']', 1)
+        if i < 0:
+            raise SyntaxError('unterminated extra: %s' % remaining)
+        s = remaining[1:i]
+        remaining = remaining[i + 1:].lstrip()
+        extras = []
+        while s:
+            m = IDENTIFIER.match(s)
+            if not m:
+                raise SyntaxError('malformed extra: %s' % s)
+            extras.append(m.groups()[0])
+            s = s[m.end():]
+            if not s:
+                break
+            if s[0] != ',':
+                raise SyntaxError('comma expected in extras: %s' % s)
+            s = s[1:].lstrip()
+        if not extras:
+            extras = None
+    if remaining:
+        if remaining[0] == '@':
+            # it's a URI
+            remaining = remaining[1:].lstrip()
+            m = NON_SPACE.match(remaining)
+            if not m:
+                raise SyntaxError('invalid URI: %s' % remaining)
+            uri = m.groups()[0]
+            t = urlparse(uri)
+            # there are issues with Python and URL parsing, so this test
+            # is a bit crude. See bpo-20271, bpo-23505. Python doesn't
+            # always parse invalid URLs correctly - it should raise
+            # exceptions for malformed URLs
+            if not (t.scheme and t.netloc):
+                raise SyntaxError('Invalid URL: %s' % uri)
+            remaining = remaining[m.end():].lstrip()
+        else:
+
+            def get_versions(ver_remaining):
+                """
+                Return a list of operator, version tuples if any are
+                specified, else None.
+                """
+                m = COMPARE_OP.match(ver_remaining)
+                versions = None
+                if m:
+                    versions = []
+                    while True:
+                        op = m.groups()[0]
+                        ver_remaining = ver_remaining[m.end():]
+                        m = VERSION_IDENTIFIER.match(ver_remaining)
+                        if not m:
+                            raise SyntaxError('invalid version: %s' % ver_remaining)
+                        v = m.groups()[0]
+                        versions.append((op, v))
+                        ver_remaining = ver_remaining[m.end():]
+                        if not ver_remaining or ver_remaining[0] != ',':
+                            break
+                        ver_remaining = ver_remaining[1:].lstrip()
+                        # Some packages have a trailing comma which would break things
+                        # See issue #148
+                        if not ver_remaining:
+                            break
+                        m = COMPARE_OP.match(ver_remaining)
+                        if not m:
+                            raise SyntaxError('invalid constraint: %s' % ver_remaining)
+                    if not versions:
+                        versions = None
+                return versions, ver_remaining
+
+            if remaining[0] != '(':
+                versions, remaining = get_versions(remaining)
+            else:
+                i = remaining.find(')', 1)
+                if i < 0:
+                    raise SyntaxError('unterminated parenthesis: %s' % remaining)
+                s = remaining[1:i]
+                remaining = remaining[i + 1:].lstrip()
+                # As a special diversion from PEP 508, allow a version number
+                # a.b.c in parentheses as a synonym for ~= a.b.c (because this
+                # is allowed in earlier PEPs)
+                if COMPARE_OP.match(s):
+                    versions, _ = get_versions(s)
+                else:
+                    m = VERSION_IDENTIFIER.match(s)
+                    if not m:
+                        raise SyntaxError('invalid constraint: %s' % s)
+                    v = m.groups()[0]
+                    s = s[m.end():].lstrip()
+                    if s:
+                        raise SyntaxError('invalid constraint: %s' % s)
+                    versions = [('~=', v)]
+
+    if remaining:
+        if remaining[0] != ';':
+            raise SyntaxError('invalid requirement: %s' % remaining)
+        remaining = remaining[1:].lstrip()
+
+        mark_expr, remaining = parse_marker(remaining)
+
+    if remaining and remaining[0] != '#':
+        raise SyntaxError('unexpected trailing data: %s' % remaining)
+
+    if not versions:
+        rs = distname
+    else:
+        rs = '%s %s' % (distname, ', '.join(['%s %s' % con for con in versions]))
+    return Container(name=distname, extras=extras, constraints=versions,
+                     marker=mark_expr, url=uri, requirement=rs)
+
+
+def get_resources_dests(resources_root, rules):
+    """Find destinations for resources files"""
+
+    def get_rel_path(root, path):
+        # normalizes and returns a lstripped-/-separated path
+        root = root.replace(os.path.sep, '/')
+        path = path.replace(os.path.sep, '/')
+        assert path.startswith(root)
+        return path[len(root):].lstrip('/')
+
+    destinations = {}
+    for base, suffix, dest in rules:
+        prefix = os.path.join(resources_root, base)
+        for abs_base in iglob(prefix):
+            abs_glob = os.path.join(abs_base, suffix)
+            for abs_path in iglob(abs_glob):
+                resource_file = get_rel_path(resources_root, abs_path)
+                if dest is None:  # remove the entry if it was here
+                    destinations.pop(resource_file, None)
+                else:
+                    rel_path = get_rel_path(abs_base, abs_path)
+                    rel_dest = dest.replace(os.path.sep, '/').rstrip('/')
+                    destinations[resource_file] = rel_dest + '/' + rel_path
+    return destinations
+
+
+def in_venv():
+    if hasattr(sys, 'real_prefix'):
+        # virtualenv venvs
+        result = True
+    else:
+        # PEP 405 venvs
+        result = sys.prefix != getattr(sys, 'base_prefix', sys.prefix)
+    return result
+
+
+def get_executable():
+# The __PYVENV_LAUNCHER__ dance is apparently no longer needed, as
+# changes to the stub launcher mean that sys.executable always points
+# to the stub on OS X
+#    if sys.platform == 'darwin' and ('__PYVENV_LAUNCHER__'
+#                                     in os.environ):
+#        result =  os.environ['__PYVENV_LAUNCHER__']
+#    else:
+#        result = sys.executable
+#    return result
+    # Avoid normcasing: see issue #143
+    # result = os.path.normcase(sys.executable)
+    result = sys.executable
+    if not isinstance(result, text_type):
+        result = fsdecode(result)
+    return result
+
+
+def proceed(prompt, allowed_chars, error_prompt=None, default=None):
+    p = prompt
+    while True:
+        s = raw_input(p)
+        p = prompt
+        if not s and default:
+            s = default
+        if s:
+            c = s[0].lower()
+            if c in allowed_chars:
+                break
+            if error_prompt:
+                p = '%c: %s\n%s' % (c, error_prompt, prompt)
+    return c
+
+
+def extract_by_key(d, keys):
+    if isinstance(keys, string_types):
+        keys = keys.split()
+    result = {}
+    for key in keys:
+        if key in d:
+            result[key] = d[key]
+    return result
+
+def read_exports(stream):
+    if sys.version_info[0] >= 3:
+        # needs to be a text stream
+        stream = codecs.getreader('utf-8')(stream)
+    # Try to load as JSON, falling back on legacy format
+    data = stream.read()
+    stream = StringIO(data)
+    try:
+        jdata = json.load(stream)
+        result = jdata['extensions']['python.exports']['exports']
+        for group, entries in result.items():
+            for k, v in entries.items():
+                s = '%s = %s' % (k, v)
+                entry = get_export_entry(s)
+                assert entry is not None
+                entries[k] = entry
+        return result
+    except Exception:
+        stream.seek(0, 0)
+
+    def read_stream(cp, stream):
+        if hasattr(cp, 'read_file'):
+            cp.read_file(stream)
+        else:
+            cp.readfp(stream)
+
+    cp = configparser.ConfigParser()
+    try:
+        read_stream(cp, stream)
+    except configparser.MissingSectionHeaderError:
+        stream.close()
+        data = textwrap.dedent(data)
+        stream = StringIO(data)
+        read_stream(cp, stream)
+
+    result = {}
+    for key in cp.sections():
+        result[key] = entries = {}
+        for name, value in cp.items(key):
+            s = '%s = %s' % (name, value)
+            entry = get_export_entry(s)
+            assert entry is not None
+            #entry.dist = self
+            entries[name] = entry
+    return result
+
+
+def write_exports(exports, stream):
+    if sys.version_info[0] >= 3:
+        # needs to be a text stream
+        stream = codecs.getwriter('utf-8')(stream)
+    cp = configparser.ConfigParser()
+    for k, v in exports.items():
+        # TODO check k, v for valid values
+        cp.add_section(k)
+        for entry in v.values():
+            if entry.suffix is None:
+                s = entry.prefix
+            else:
+                s = '%s:%s' % (entry.prefix, entry.suffix)
+            if entry.flags:
+                s = '%s [%s]' % (s, ', '.join(entry.flags))
+            cp.set(k, entry.name, s)
+    cp.write(stream)
+
+
+@contextlib.contextmanager
+def tempdir():
+    td = tempfile.mkdtemp()
+    try:
+        yield td
+    finally:
+        shutil.rmtree(td)
+
+@contextlib.contextmanager
+def chdir(d):
+    cwd = os.getcwd()
+    try:
+        os.chdir(d)
+        yield
+    finally:
+        os.chdir(cwd)
+
+
+@contextlib.contextmanager
+def socket_timeout(seconds=15):
+    cto = socket.getdefaulttimeout()
+    try:
+        socket.setdefaulttimeout(seconds)
+        yield
+    finally:
+        socket.setdefaulttimeout(cto)
+
+
+class cached_property(object):
+    def __init__(self, func):
+        self.func = func
+        #for attr in ('__name__', '__module__', '__doc__'):
+        #    setattr(self, attr, getattr(func, attr, None))
+
+    def __get__(self, obj, cls=None):
+        if obj is None:
+            return self
+        value = self.func(obj)
+        object.__setattr__(obj, self.func.__name__, value)
+        #obj.__dict__[self.func.__name__] = value = self.func(obj)
+        return value
+
+def convert_path(pathname):
+    """Return 'pathname' as a name that will work on the native filesystem.
+
+    The path is split on '/' and put back together again using the current
+    directory separator.  Needed because filenames in the setup script are
+    always supplied in Unix style, and have to be converted to the local
+    convention before we can actually use them in the filesystem.  Raises
+    ValueError on non-Unix-ish systems if 'pathname' either starts or
+    ends with a slash.
+    """
+    if os.sep == '/':
+        return pathname
+    if not pathname:
+        return pathname
+    if pathname[0] == '/':
+        raise ValueError("path '%s' cannot be absolute" % pathname)
+    if pathname[-1] == '/':
+        raise ValueError("path '%s' cannot end with '/'" % pathname)
+
+    paths = pathname.split('/')
+    while os.curdir in paths:
+        paths.remove(os.curdir)
+    if not paths:
+        return os.curdir
+    return os.path.join(*paths)
+
+
+class FileOperator(object):
+    def __init__(self, dry_run=False):
+        self.dry_run = dry_run
+        self.ensured = set()
+        self._init_record()
+
+    def _init_record(self):
+        self.record = False
+        self.files_written = set()
+        self.dirs_created = set()
+
+    def record_as_written(self, path):
+        if self.record:
+            self.files_written.add(path)
+
+    def newer(self, source, target):
+        """Tell if the target is newer than the source.
+
+        Returns true if 'source' exists and is more recently modified than
+        'target', or if 'source' exists and 'target' doesn't.
+
+        Returns false if both exist and 'target' is the same age or younger
+        than 'source'. Raise PackagingFileError if 'source' does not exist.
+
+        Note that this test is not very accurate: files created in the same
+        second will have the same "age".
+        """
+        if not os.path.exists(source):
+            raise DistlibException("file '%r' does not exist" %
+                                   os.path.abspath(source))
+        if not os.path.exists(target):
+            return True
+
+        return os.stat(source).st_mtime > os.stat(target).st_mtime
+
+    def copy_file(self, infile, outfile, check=True):
+        """Copy a file respecting dry-run and force flags.
+        """
+        self.ensure_dir(os.path.dirname(outfile))
+        logger.info('Copying %s to %s', infile, outfile)
+        if not self.dry_run:
+            msg = None
+            if check:
+                if os.path.islink(outfile):
+                    msg = '%s is a symlink' % outfile
+                elif os.path.exists(outfile) and not os.path.isfile(outfile):
+                    msg = '%s is a non-regular file' % outfile
+            if msg:
+                raise ValueError(msg + ' which would be overwritten')
+            shutil.copyfile(infile, outfile)
+        self.record_as_written(outfile)
+
+    def copy_stream(self, instream, outfile, encoding=None):
+        assert not os.path.isdir(outfile)
+        self.ensure_dir(os.path.dirname(outfile))
+        logger.info('Copying stream %s to %s', instream, outfile)
+        if not self.dry_run:
+            if encoding is None:
+                outstream = open(outfile, 'wb')
+            else:
+                outstream = codecs.open(outfile, 'w', encoding=encoding)
+            try:
+                shutil.copyfileobj(instream, outstream)
+            finally:
+                outstream.close()
+        self.record_as_written(outfile)
+
+    def write_binary_file(self, path, data):
+        self.ensure_dir(os.path.dirname(path))
+        if not self.dry_run:
+            if os.path.exists(path):
+                os.remove(path)
+            with open(path, 'wb') as f:
+                f.write(data)
+        self.record_as_written(path)
+
+    def write_text_file(self, path, data, encoding):
+        self.write_binary_file(path, data.encode(encoding))
+
+    def set_mode(self, bits, mask, files):
+        if os.name == 'posix' or (os.name == 'java' and os._name == 'posix'):
+            # Set the executable bits (owner, group, and world) on
+            # all the files specified.
+            for f in files:
+                if self.dry_run:
+                    logger.info("changing mode of %s", f)
+                else:
+                    mode = (os.stat(f).st_mode | bits) & mask
+                    logger.info("changing mode of %s to %o", f, mode)
+                    os.chmod(f, mode)
+
+    set_executable_mode = lambda s, f: s.set_mode(0o555, 0o7777, f)
+
+    def ensure_dir(self, path):
+        path = os.path.abspath(path)
+        if path not in self.ensured and not os.path.exists(path):
+            self.ensured.add(path)
+            d, f = os.path.split(path)
+            self.ensure_dir(d)
+            logger.info('Creating %s' % path)
+            if not self.dry_run:
+                os.mkdir(path)
+            if self.record:
+                self.dirs_created.add(path)
+
+    def byte_compile(self, path, optimize=False, force=False, prefix=None, hashed_invalidation=False):
+        dpath = cache_from_source(path, not optimize)
+        logger.info('Byte-compiling %s to %s', path, dpath)
+        if not self.dry_run:
+            if force or self.newer(path, dpath):
+                if not prefix:
+                    diagpath = None
+                else:
+                    assert path.startswith(prefix)
+                    diagpath = path[len(prefix):]
+            compile_kwargs = {}
+            if hashed_invalidation and hasattr(py_compile, 'PycInvalidationMode'):
+                compile_kwargs['invalidation_mode'] = py_compile.PycInvalidationMode.CHECKED_HASH
+            py_compile.compile(path, dpath, diagpath, True, **compile_kwargs)     # raise error
+        self.record_as_written(dpath)
+        return dpath
+
+    def ensure_removed(self, path):
+        if os.path.exists(path):
+            if os.path.isdir(path) and not os.path.islink(path):
+                logger.debug('Removing directory tree at %s', path)
+                if not self.dry_run:
+                    shutil.rmtree(path)
+                if self.record:
+                    if path in self.dirs_created:
+                        self.dirs_created.remove(path)
+            else:
+                if os.path.islink(path):
+                    s = 'link'
+                else:
+                    s = 'file'
+                logger.debug('Removing %s %s', s, path)
+                if not self.dry_run:
+                    os.remove(path)
+                if self.record:
+                    if path in self.files_written:
+                        self.files_written.remove(path)
+
+    def is_writable(self, path):
+        result = False
+        while not result:
+            if os.path.exists(path):
+                result = os.access(path, os.W_OK)
+                break
+            parent = os.path.dirname(path)
+            if parent == path:
+                break
+            path = parent
+        return result
+
+    def commit(self):
+        """
+        Commit recorded changes, turn off recording, return
+        changes.
+        """
+        assert self.record
+        result = self.files_written, self.dirs_created
+        self._init_record()
+        return result
+
+    def rollback(self):
+        if not self.dry_run:
+            for f in list(self.files_written):
+                if os.path.exists(f):
+                    os.remove(f)
+            # dirs should all be empty now, except perhaps for
+            # __pycache__ subdirs
+            # reverse so that subdirs appear before their parents
+            dirs = sorted(self.dirs_created, reverse=True)
+            for d in dirs:
+                flist = os.listdir(d)
+                if flist:
+                    assert flist == ['__pycache__']
+                    sd = os.path.join(d, flist[0])
+                    os.rmdir(sd)
+                os.rmdir(d)     # should fail if non-empty
+        self._init_record()
+
+def resolve(module_name, dotted_path):
+    if module_name in sys.modules:
+        mod = sys.modules[module_name]
+    else:
+        mod = __import__(module_name)
+    if dotted_path is None:
+        result = mod
+    else:
+        parts = dotted_path.split('.')
+        result = getattr(mod, parts.pop(0))
+        for p in parts:
+            result = getattr(result, p)
+    return result
+
+
+class ExportEntry(object):
+    def __init__(self, name, prefix, suffix, flags):
+        self.name = name
+        self.prefix = prefix
+        self.suffix = suffix
+        self.flags = flags
+
+    @cached_property
+    def value(self):
+        return resolve(self.prefix, self.suffix)
+
+    def __repr__(self):  # pragma: no cover
+        return '' % (self.name, self.prefix,
+                                                self.suffix, self.flags)
+
+    def __eq__(self, other):
+        if not isinstance(other, ExportEntry):
+            result = False
+        else:
+            result = (self.name == other.name and
+                      self.prefix == other.prefix and
+                      self.suffix == other.suffix and
+                      self.flags == other.flags)
+        return result
+
+    __hash__ = object.__hash__
+
+
+ENTRY_RE = re.compile(r'''(?P(\w|[-.+])+)
+                      \s*=\s*(?P(\w+)([:\.]\w+)*)
+                      \s*(\[\s*(?P[\w-]+(=\w+)?(,\s*\w+(=\w+)?)*)\s*\])?
+                      ''', re.VERBOSE)
+
+def get_export_entry(specification):
+    m = ENTRY_RE.search(specification)
+    if not m:
+        result = None
+        if '[' in specification or ']' in specification:
+            raise DistlibException("Invalid specification "
+                                   "'%s'" % specification)
+    else:
+        d = m.groupdict()
+        name = d['name']
+        path = d['callable']
+        colons = path.count(':')
+        if colons == 0:
+            prefix, suffix = path, None
+        else:
+            if colons != 1:
+                raise DistlibException("Invalid specification "
+                                       "'%s'" % specification)
+            prefix, suffix = path.split(':')
+        flags = d['flags']
+        if flags is None:
+            if '[' in specification or ']' in specification:
+                raise DistlibException("Invalid specification "
+                                       "'%s'" % specification)
+            flags = []
+        else:
+            flags = [f.strip() for f in flags.split(',')]
+        result = ExportEntry(name, prefix, suffix, flags)
+    return result
+
+
+def get_cache_base(suffix=None):
+    """
+    Return the default base location for distlib caches. If the directory does
+    not exist, it is created. Use the suffix provided for the base directory,
+    and default to '.distlib' if it isn't provided.
+
+    On Windows, if LOCALAPPDATA is defined in the environment, then it is
+    assumed to be a directory, and will be the parent directory of the result.
+    On POSIX, and on Windows if LOCALAPPDATA is not defined, the user's home
+    directory - using os.expanduser('~') - will be the parent directory of
+    the result.
+
+    The result is just the directory '.distlib' in the parent directory as
+    determined above, or with the name specified with ``suffix``.
+    """
+    if suffix is None:
+        suffix = '.distlib'
+    if os.name == 'nt' and 'LOCALAPPDATA' in os.environ:
+        result = os.path.expandvars('$localappdata')
+    else:
+        # Assume posix, or old Windows
+        result = os.path.expanduser('~')
+    # we use 'isdir' instead of 'exists', because we want to
+    # fail if there's a file with that name
+    if os.path.isdir(result):
+        usable = os.access(result, os.W_OK)
+        if not usable:
+            logger.warning('Directory exists but is not writable: %s', result)
+    else:
+        try:
+            os.makedirs(result)
+            usable = True
+        except OSError:
+            logger.warning('Unable to create %s', result, exc_info=True)
+            usable = False
+    if not usable:
+        result = tempfile.mkdtemp()
+        logger.warning('Default location unusable, using %s', result)
+    return os.path.join(result, suffix)
+
+
+def path_to_cache_dir(path):
+    """
+    Convert an absolute path to a directory name for use in a cache.
+
+    The algorithm used is:
+
+    #. On Windows, any ``':'`` in the drive is replaced with ``'---'``.
+    #. Any occurrence of ``os.sep`` is replaced with ``'--'``.
+    #. ``'.cache'`` is appended.
+    """
+    d, p = os.path.splitdrive(os.path.abspath(path))
+    if d:
+        d = d.replace(':', '---')
+    p = p.replace(os.sep, '--')
+    return d + p + '.cache'
+
+
+def ensure_slash(s):
+    if not s.endswith('/'):
+        return s + '/'
+    return s
+
+
+def parse_credentials(netloc):
+    username = password = None
+    if '@' in netloc:
+        prefix, netloc = netloc.rsplit('@', 1)
+        if ':' not in prefix:
+            username = prefix
+        else:
+            username, password = prefix.split(':', 1)
+    if username:
+        username = unquote(username)
+    if password:
+        password = unquote(password)
+    return username, password, netloc
+
+
+def get_process_umask():
+    result = os.umask(0o22)
+    os.umask(result)
+    return result
+
+def is_string_sequence(seq):
+    result = True
+    i = None
+    for i, s in enumerate(seq):
+        if not isinstance(s, string_types):
+            result = False
+            break
+    assert i is not None
+    return result
+
+PROJECT_NAME_AND_VERSION = re.compile('([a-z0-9_]+([.-][a-z_][a-z0-9_]*)*)-'
+                                      '([a-z0-9_.+-]+)', re.I)
+PYTHON_VERSION = re.compile(r'-py(\d\.?\d?)')
+
+
+def split_filename(filename, project_name=None):
+    """
+    Extract name, version, python version from a filename (no extension)
+
+    Return name, version, pyver or None
+    """
+    result = None
+    pyver = None
+    filename = unquote(filename).replace(' ', '-')
+    m = PYTHON_VERSION.search(filename)
+    if m:
+        pyver = m.group(1)
+        filename = filename[:m.start()]
+    if project_name and len(filename) > len(project_name) + 1:
+        m = re.match(re.escape(project_name) + r'\b', filename)
+        if m:
+            n = m.end()
+            result = filename[:n], filename[n + 1:], pyver
+    if result is None:
+        m = PROJECT_NAME_AND_VERSION.match(filename)
+        if m:
+            result = m.group(1), m.group(3), pyver
+    return result
+
+# Allow spaces in name because of legacy dists like "Twisted Core"
+NAME_VERSION_RE = re.compile(r'(?P[\w .-]+)\s*'
+                             r'\(\s*(?P[^\s)]+)\)$')
+
+def parse_name_and_version(p):
+    """
+    A utility method used to get name and version from a string.
+
+    From e.g. a Provides-Dist value.
+
+    :param p: A value in a form 'foo (1.0)'
+    :return: The name and version as a tuple.
+    """
+    m = NAME_VERSION_RE.match(p)
+    if not m:
+        raise DistlibException('Ill-formed name/version string: \'%s\'' % p)
+    d = m.groupdict()
+    return d['name'].strip().lower(), d['ver']
+
+def get_extras(requested, available):
+    result = set()
+    requested = set(requested or [])
+    available = set(available or [])
+    if '*' in requested:
+        requested.remove('*')
+        result |= available
+    for r in requested:
+        if r == '-':
+            result.add(r)
+        elif r.startswith('-'):
+            unwanted = r[1:]
+            if unwanted not in available:
+                logger.warning('undeclared extra: %s' % unwanted)
+            if unwanted in result:
+                result.remove(unwanted)
+        else:
+            if r not in available:
+                logger.warning('undeclared extra: %s' % r)
+            result.add(r)
+    return result
+#
+# Extended metadata functionality
+#
+
+def _get_external_data(url):
+    result = {}
+    try:
+        # urlopen might fail if it runs into redirections,
+        # because of Python issue #13696. Fixed in locators
+        # using a custom redirect handler.
+        resp = urlopen(url)
+        headers = resp.info()
+        ct = headers.get('Content-Type')
+        if not ct.startswith('application/json'):
+            logger.debug('Unexpected response for JSON request: %s', ct)
+        else:
+            reader = codecs.getreader('utf-8')(resp)
+            #data = reader.read().decode('utf-8')
+            #result = json.loads(data)
+            result = json.load(reader)
+    except Exception as e:
+        logger.exception('Failed to get external data for %s: %s', url, e)
+    return result
+
+_external_data_base_url = 'https://www.red-dove.com/pypi/projects/'
+
+def get_project_data(name):
+    url = '%s/%s/project.json' % (name[0].upper(), name)
+    url = urljoin(_external_data_base_url, url)
+    result = _get_external_data(url)
+    return result
+
+def get_package_data(name, version):
+    url = '%s/%s/package-%s.json' % (name[0].upper(), name, version)
+    url = urljoin(_external_data_base_url, url)
+    return _get_external_data(url)
+
+
+class Cache(object):
+    """
+    A class implementing a cache for resources that need to live in the file system
+    e.g. shared libraries. This class was moved from resources to here because it
+    could be used by other modules, e.g. the wheel module.
+    """
+
+    def __init__(self, base):
+        """
+        Initialise an instance.
+
+        :param base: The base directory where the cache should be located.
+        """
+        # we use 'isdir' instead of 'exists', because we want to
+        # fail if there's a file with that name
+        if not os.path.isdir(base):  # pragma: no cover
+            os.makedirs(base)
+        if (os.stat(base).st_mode & 0o77) != 0:
+            logger.warning('Directory \'%s\' is not private', base)
+        self.base = os.path.abspath(os.path.normpath(base))
+
+    def prefix_to_dir(self, prefix):
+        """
+        Converts a resource prefix to a directory name in the cache.
+        """
+        return path_to_cache_dir(prefix)
+
+    def clear(self):
+        """
+        Clear the cache.
+        """
+        not_removed = []
+        for fn in os.listdir(self.base):
+            fn = os.path.join(self.base, fn)
+            try:
+                if os.path.islink(fn) or os.path.isfile(fn):
+                    os.remove(fn)
+                elif os.path.isdir(fn):
+                    shutil.rmtree(fn)
+            except Exception:
+                not_removed.append(fn)
+        return not_removed
+
+
+class EventMixin(object):
+    """
+    A very simple publish/subscribe system.
+    """
+    def __init__(self):
+        self._subscribers = {}
+
+    def add(self, event, subscriber, append=True):
+        """
+        Add a subscriber for an event.
+
+        :param event: The name of an event.
+        :param subscriber: The subscriber to be added (and called when the
+                           event is published).
+        :param append: Whether to append or prepend the subscriber to an
+                       existing subscriber list for the event.
+        """
+        subs = self._subscribers
+        if event not in subs:
+            subs[event] = deque([subscriber])
+        else:
+            sq = subs[event]
+            if append:
+                sq.append(subscriber)
+            else:
+                sq.appendleft(subscriber)
+
+    def remove(self, event, subscriber):
+        """
+        Remove a subscriber for an event.
+
+        :param event: The name of an event.
+        :param subscriber: The subscriber to be removed.
+        """
+        subs = self._subscribers
+        if event not in subs:
+            raise ValueError('No subscribers: %r' % event)
+        subs[event].remove(subscriber)
+
+    def get_subscribers(self, event):
+        """
+        Return an iterator for the subscribers for an event.
+        :param event: The event to return subscribers for.
+        """
+        return iter(self._subscribers.get(event, ()))
+
+    def publish(self, event, *args, **kwargs):
+        """
+        Publish a event and return a list of values returned by its
+        subscribers.
+
+        :param event: The event to publish.
+        :param args: The positional arguments to pass to the event's
+                     subscribers.
+        :param kwargs: The keyword arguments to pass to the event's
+                       subscribers.
+        """
+        result = []
+        for subscriber in self.get_subscribers(event):
+            try:
+                value = subscriber(event, *args, **kwargs)
+            except Exception:
+                logger.exception('Exception during event publication')
+                value = None
+            result.append(value)
+        logger.debug('publish %s: args = %s, kwargs = %s, result = %s',
+                     event, args, kwargs, result)
+        return result
+
+#
+# Simple sequencing
+#
+class Sequencer(object):
+    def __init__(self):
+        self._preds = {}
+        self._succs = {}
+        self._nodes = set()     # nodes with no preds/succs
+
+    def add_node(self, node):
+        self._nodes.add(node)
+
+    def remove_node(self, node, edges=False):
+        if node in self._nodes:
+            self._nodes.remove(node)
+        if edges:
+            for p in set(self._preds.get(node, ())):
+                self.remove(p, node)
+            for s in set(self._succs.get(node, ())):
+                self.remove(node, s)
+            # Remove empties
+            for k, v in list(self._preds.items()):
+                if not v:
+                    del self._preds[k]
+            for k, v in list(self._succs.items()):
+                if not v:
+                    del self._succs[k]
+
+    def add(self, pred, succ):
+        assert pred != succ
+        self._preds.setdefault(succ, set()).add(pred)
+        self._succs.setdefault(pred, set()).add(succ)
+
+    def remove(self, pred, succ):
+        assert pred != succ
+        try:
+            preds = self._preds[succ]
+            succs = self._succs[pred]
+        except KeyError:  # pragma: no cover
+            raise ValueError('%r not a successor of anything' % succ)
+        try:
+            preds.remove(pred)
+            succs.remove(succ)
+        except KeyError:  # pragma: no cover
+            raise ValueError('%r not a successor of %r' % (succ, pred))
+
+    def is_step(self, step):
+        return (step in self._preds or step in self._succs or
+                step in self._nodes)
+
+    def get_steps(self, final):
+        if not self.is_step(final):
+            raise ValueError('Unknown: %r' % final)
+        result = []
+        todo = []
+        seen = set()
+        todo.append(final)
+        while todo:
+            step = todo.pop(0)
+            if step in seen:
+                # if a step was already seen,
+                # move it to the end (so it will appear earlier
+                # when reversed on return) ... but not for the
+                # final step, as that would be confusing for
+                # users
+                if step != final:
+                    result.remove(step)
+                    result.append(step)
+            else:
+                seen.add(step)
+                result.append(step)
+                preds = self._preds.get(step, ())
+                todo.extend(preds)
+        return reversed(result)
+
+    @property
+    def strong_connections(self):
+        #http://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm
+        index_counter = [0]
+        stack = []
+        lowlinks = {}
+        index = {}
+        result = []
+
+        graph = self._succs
+
+        def strongconnect(node):
+            # set the depth index for this node to the smallest unused index
+            index[node] = index_counter[0]
+            lowlinks[node] = index_counter[0]
+            index_counter[0] += 1
+            stack.append(node)
+
+            # Consider successors
+            try:
+                successors = graph[node]
+            except Exception:
+                successors = []
+            for successor in successors:
+                if successor not in lowlinks:
+                    # Successor has not yet been visited
+                    strongconnect(successor)
+                    lowlinks[node] = min(lowlinks[node],lowlinks[successor])
+                elif successor in stack:
+                    # the successor is in the stack and hence in the current
+                    # strongly connected component (SCC)
+                    lowlinks[node] = min(lowlinks[node],index[successor])
+
+            # If `node` is a root node, pop the stack and generate an SCC
+            if lowlinks[node] == index[node]:
+                connected_component = []
+
+                while True:
+                    successor = stack.pop()
+                    connected_component.append(successor)
+                    if successor == node: break
+                component = tuple(connected_component)
+                # storing the result
+                result.append(component)
+
+        for node in graph:
+            if node not in lowlinks:
+                strongconnect(node)
+
+        return result
+
+    @property
+    def dot(self):
+        result = ['digraph G {']
+        for succ in self._preds:
+            preds = self._preds[succ]
+            for pred in preds:
+                result.append('  %s -> %s;' % (pred, succ))
+        for node in self._nodes:
+            result.append('  %s;' % node)
+        result.append('}')
+        return '\n'.join(result)
+
+#
+# Unarchiving functionality for zip, tar, tgz, tbz, whl
+#
+
+ARCHIVE_EXTENSIONS = ('.tar.gz', '.tar.bz2', '.tar', '.zip',
+                      '.tgz', '.tbz', '.whl')
+
+def unarchive(archive_filename, dest_dir, format=None, check=True):
+
+    def check_path(path):
+        if not isinstance(path, text_type):
+            path = path.decode('utf-8')
+        p = os.path.abspath(os.path.join(dest_dir, path))
+        if not p.startswith(dest_dir) or p[plen] != os.sep:
+            raise ValueError('path outside destination: %r' % p)
+
+    dest_dir = os.path.abspath(dest_dir)
+    plen = len(dest_dir)
+    archive = None
+    if format is None:
+        if archive_filename.endswith(('.zip', '.whl')):
+            format = 'zip'
+        elif archive_filename.endswith(('.tar.gz', '.tgz')):
+            format = 'tgz'
+            mode = 'r:gz'
+        elif archive_filename.endswith(('.tar.bz2', '.tbz')):
+            format = 'tbz'
+            mode = 'r:bz2'
+        elif archive_filename.endswith('.tar'):
+            format = 'tar'
+            mode = 'r'
+        else:  # pragma: no cover
+            raise ValueError('Unknown format for %r' % archive_filename)
+    try:
+        if format == 'zip':
+            archive = ZipFile(archive_filename, 'r')
+            if check:
+                names = archive.namelist()
+                for name in names:
+                    check_path(name)
+        else:
+            archive = tarfile.open(archive_filename, mode)
+            if check:
+                names = archive.getnames()
+                for name in names:
+                    check_path(name)
+        if format != 'zip' and sys.version_info[0] < 3:
+            # See Python issue 17153. If the dest path contains Unicode,
+            # tarfile extraction fails on Python 2.x if a member path name
+            # contains non-ASCII characters - it leads to an implicit
+            # bytes -> unicode conversion using ASCII to decode.
+            for tarinfo in archive.getmembers():
+                if not isinstance(tarinfo.name, text_type):
+                    tarinfo.name = tarinfo.name.decode('utf-8')
+        archive.extractall(dest_dir)
+
+    finally:
+        if archive:
+            archive.close()
+
+
+def zip_dir(directory):
+    """zip a directory tree into a BytesIO object"""
+    result = io.BytesIO()
+    dlen = len(directory)
+    with ZipFile(result, "w") as zf:
+        for root, dirs, files in os.walk(directory):
+            for name in files:
+                full = os.path.join(root, name)
+                rel = root[dlen:]
+                dest = os.path.join(rel, name)
+                zf.write(full, dest)
+    return result
+
+#
+# Simple progress bar
+#
+
+UNITS = ('', 'K', 'M', 'G','T','P')
+
+
+class Progress(object):
+    unknown = 'UNKNOWN'
+
+    def __init__(self, minval=0, maxval=100):
+        assert maxval is None or maxval >= minval
+        self.min = self.cur = minval
+        self.max = maxval
+        self.started = None
+        self.elapsed = 0
+        self.done = False
+
+    def update(self, curval):
+        assert self.min <= curval
+        assert self.max is None or curval <= self.max
+        self.cur = curval
+        now = time.time()
+        if self.started is None:
+            self.started = now
+        else:
+            self.elapsed = now - self.started
+
+    def increment(self, incr):
+        assert incr >= 0
+        self.update(self.cur + incr)
+
+    def start(self):
+        self.update(self.min)
+        return self
+
+    def stop(self):
+        if self.max is not None:
+            self.update(self.max)
+        self.done = True
+
+    @property
+    def maximum(self):
+        return self.unknown if self.max is None else self.max
+
+    @property
+    def percentage(self):
+        if self.done:
+            result = '100 %'
+        elif self.max is None:
+            result = ' ?? %'
+        else:
+            v = 100.0 * (self.cur - self.min) / (self.max - self.min)
+            result = '%3d %%' % v
+        return result
+
+    def format_duration(self, duration):
+        if (duration <= 0) and self.max is None or self.cur == self.min:
+            result = '??:??:??'
+        #elif duration < 1:
+        #    result = '--:--:--'
+        else:
+            result = time.strftime('%H:%M:%S', time.gmtime(duration))
+        return result
+
+    @property
+    def ETA(self):
+        if self.done:
+            prefix = 'Done'
+            t = self.elapsed
+            #import pdb; pdb.set_trace()
+        else:
+            prefix = 'ETA '
+            if self.max is None:
+                t = -1
+            elif self.elapsed == 0 or (self.cur == self.min):
+                t = 0
+            else:
+                #import pdb; pdb.set_trace()
+                t = float(self.max - self.min)
+                t /= self.cur - self.min
+                t = (t - 1) * self.elapsed
+        return '%s: %s' % (prefix, self.format_duration(t))
+
+    @property
+    def speed(self):
+        if self.elapsed == 0:
+            result = 0.0
+        else:
+            result = (self.cur - self.min) / self.elapsed
+        for unit in UNITS:
+            if result < 1000:
+                break
+            result /= 1000.0
+        return '%d %sB/s' % (result, unit)
+
+#
+# Glob functionality
+#
+
+RICH_GLOB = re.compile(r'\{([^}]*)\}')
+_CHECK_RECURSIVE_GLOB = re.compile(r'[^/\\,{]\*\*|\*\*[^/\\,}]')
+_CHECK_MISMATCH_SET = re.compile(r'^[^{]*\}|\{[^}]*$')
+
+
+def iglob(path_glob):
+    """Extended globbing function that supports ** and {opt1,opt2,opt3}."""
+    if _CHECK_RECURSIVE_GLOB.search(path_glob):
+        msg = """invalid glob %r: recursive glob "**" must be used alone"""
+        raise ValueError(msg % path_glob)
+    if _CHECK_MISMATCH_SET.search(path_glob):
+        msg = """invalid glob %r: mismatching set marker '{' or '}'"""
+        raise ValueError(msg % path_glob)
+    return _iglob(path_glob)
+
+
+def _iglob(path_glob):
+    rich_path_glob = RICH_GLOB.split(path_glob, 1)
+    if len(rich_path_glob) > 1:
+        assert len(rich_path_glob) == 3, rich_path_glob
+        prefix, set, suffix = rich_path_glob
+        for item in set.split(','):
+            for path in _iglob(''.join((prefix, item, suffix))):
+                yield path
+    else:
+        if '**' not in path_glob:
+            for item in std_iglob(path_glob):
+                yield item
+        else:
+            prefix, radical = path_glob.split('**', 1)
+            if prefix == '':
+                prefix = '.'
+            if radical == '':
+                radical = '*'
+            else:
+                # we support both
+                radical = radical.lstrip('/')
+                radical = radical.lstrip('\\')
+            for path, dir, files in os.walk(prefix):
+                path = os.path.normpath(path)
+                for fn in _iglob(os.path.join(path, radical)):
+                    yield fn
+
+if ssl:
+    from .compat import (HTTPSHandler as BaseHTTPSHandler, match_hostname,
+                         CertificateError)
+
+
+#
+# HTTPSConnection which verifies certificates/matches domains
+#
+
+    class HTTPSConnection(httplib.HTTPSConnection):
+        ca_certs = None # set this to the path to the certs file (.pem)
+        check_domain = True # only used if ca_certs is not None
+
+        # noinspection PyPropertyAccess
+        def connect(self):
+            sock = socket.create_connection((self.host, self.port), self.timeout)
+            if getattr(self, '_tunnel_host', False):
+                self.sock = sock
+                self._tunnel()
+
+            if not hasattr(ssl, 'SSLContext'):
+                # For 2.x
+                if self.ca_certs:
+                    cert_reqs = ssl.CERT_REQUIRED
+                else:
+                    cert_reqs = ssl.CERT_NONE
+                self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file,
+                                            cert_reqs=cert_reqs,
+                                            ssl_version=ssl.PROTOCOL_SSLv23,
+                                            ca_certs=self.ca_certs)
+            else:  # pragma: no cover
+                context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
+                if hasattr(ssl, 'OP_NO_SSLv2'):
+                    context.options |= ssl.OP_NO_SSLv2
+                if self.cert_file:
+                    context.load_cert_chain(self.cert_file, self.key_file)
+                kwargs = {}
+                if self.ca_certs:
+                    context.verify_mode = ssl.CERT_REQUIRED
+                    context.load_verify_locations(cafile=self.ca_certs)
+                    if getattr(ssl, 'HAS_SNI', False):
+                        kwargs['server_hostname'] = self.host
+                self.sock = context.wrap_socket(sock, **kwargs)
+            if self.ca_certs and self.check_domain:
+                try:
+                    match_hostname(self.sock.getpeercert(), self.host)
+                    logger.debug('Host verified: %s', self.host)
+                except CertificateError:  # pragma: no cover
+                    self.sock.shutdown(socket.SHUT_RDWR)
+                    self.sock.close()
+                    raise
+
+    class HTTPSHandler(BaseHTTPSHandler):
+        def __init__(self, ca_certs, check_domain=True):
+            BaseHTTPSHandler.__init__(self)
+            self.ca_certs = ca_certs
+            self.check_domain = check_domain
+
+        def _conn_maker(self, *args, **kwargs):
+            """
+            This is called to create a connection instance. Normally you'd
+            pass a connection class to do_open, but it doesn't actually check for
+            a class, and just expects a callable. As long as we behave just as a
+            constructor would have, we should be OK. If it ever changes so that
+            we *must* pass a class, we'll create an UnsafeHTTPSConnection class
+            which just sets check_domain to False in the class definition, and
+            choose which one to pass to do_open.
+            """
+            result = HTTPSConnection(*args, **kwargs)
+            if self.ca_certs:
+                result.ca_certs = self.ca_certs
+                result.check_domain = self.check_domain
+            return result
+
+        def https_open(self, req):
+            try:
+                return self.do_open(self._conn_maker, req)
+            except URLError as e:
+                if 'certificate verify failed' in str(e.reason):
+                    raise CertificateError('Unable to verify server certificate '
+                                           'for %s' % req.host)
+                else:
+                    raise
+
+    #
+    # To prevent against mixing HTTP traffic with HTTPS (examples: A Man-In-The-
+    # Middle proxy using HTTP listens on port 443, or an index mistakenly serves
+    # HTML containing a http://xyz link when it should be https://xyz),
+    # you can use the following handler class, which does not allow HTTP traffic.
+    #
+    # It works by inheriting from HTTPHandler - so build_opener won't add a
+    # handler for HTTP itself.
+    #
+    class HTTPSOnlyHandler(HTTPSHandler, HTTPHandler):
+        def http_open(self, req):
+            raise URLError('Unexpected HTTP request on what should be a secure '
+                           'connection: %s' % req)
+
+#
+# XML-RPC with timeouts
+#
+
+_ver_info = sys.version_info[:2]
+
+if _ver_info == (2, 6):
+    class HTTP(httplib.HTTP):
+        def __init__(self, host='', port=None, **kwargs):
+            if port == 0:   # 0 means use port 0, not the default port
+                port = None
+            self._setup(self._connection_class(host, port, **kwargs))
+
+
+    if ssl:
+        class HTTPS(httplib.HTTPS):
+            def __init__(self, host='', port=None, **kwargs):
+                if port == 0:   # 0 means use port 0, not the default port
+                    port = None
+                self._setup(self._connection_class(host, port, **kwargs))
+
+
+class Transport(xmlrpclib.Transport):
+    def __init__(self, timeout, use_datetime=0):
+        self.timeout = timeout
+        xmlrpclib.Transport.__init__(self, use_datetime)
+
+    def make_connection(self, host):
+        h, eh, x509 = self.get_host_info(host)
+        if _ver_info == (2, 6):
+            result = HTTP(h, timeout=self.timeout)
+        else:
+            if not self._connection or host != self._connection[0]:
+                self._extra_headers = eh
+                self._connection = host, httplib.HTTPConnection(h)
+            result = self._connection[1]
+        return result
+
+if ssl:
+    class SafeTransport(xmlrpclib.SafeTransport):
+        def __init__(self, timeout, use_datetime=0):
+            self.timeout = timeout
+            xmlrpclib.SafeTransport.__init__(self, use_datetime)
+
+        def make_connection(self, host):
+            h, eh, kwargs = self.get_host_info(host)
+            if not kwargs:
+                kwargs = {}
+            kwargs['timeout'] = self.timeout
+            if _ver_info == (2, 6):
+                result = HTTPS(host, None, **kwargs)
+            else:
+                if not self._connection or host != self._connection[0]:
+                    self._extra_headers = eh
+                    self._connection = host, httplib.HTTPSConnection(h, None,
+                                                                     **kwargs)
+                result = self._connection[1]
+            return result
+
+
+class ServerProxy(xmlrpclib.ServerProxy):
+    def __init__(self, uri, **kwargs):
+        self.timeout = timeout = kwargs.pop('timeout', None)
+        # The above classes only come into play if a timeout
+        # is specified
+        if timeout is not None:
+            # scheme = splittype(uri)  # deprecated as of Python 3.8
+            scheme = urlparse(uri)[0]
+            use_datetime = kwargs.get('use_datetime', 0)
+            if scheme == 'https':
+                tcls = SafeTransport
+            else:
+                tcls = Transport
+            kwargs['transport'] = t = tcls(timeout, use_datetime=use_datetime)
+            self.transport = t
+        xmlrpclib.ServerProxy.__init__(self, uri, **kwargs)
+
+#
+# CSV functionality. This is provided because on 2.x, the csv module can't
+# handle Unicode. However, we need to deal with Unicode in e.g. RECORD files.
+#
+
+def _csv_open(fn, mode, **kwargs):
+    if sys.version_info[0] < 3:
+        mode += 'b'
+    else:
+        kwargs['newline'] = ''
+        # Python 3 determines encoding from locale. Force 'utf-8'
+        # file encoding to match other forced utf-8 encoding
+        kwargs['encoding'] = 'utf-8'
+    return open(fn, mode, **kwargs)
+
+
+class CSVBase(object):
+    defaults = {
+        'delimiter': str(','),      # The strs are used because we need native
+        'quotechar': str('"'),      # str in the csv API (2.x won't take
+        'lineterminator': str('\n') # Unicode)
+    }
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *exc_info):
+        self.stream.close()
+
+
+class CSVReader(CSVBase):
+    def __init__(self, **kwargs):
+        if 'stream' in kwargs:
+            stream = kwargs['stream']
+            if sys.version_info[0] >= 3:
+                # needs to be a text stream
+                stream = codecs.getreader('utf-8')(stream)
+            self.stream = stream
+        else:
+            self.stream = _csv_open(kwargs['path'], 'r')
+        self.reader = csv.reader(self.stream, **self.defaults)
+
+    def __iter__(self):
+        return self
+
+    def next(self):
+        result = next(self.reader)
+        if sys.version_info[0] < 3:
+            for i, item in enumerate(result):
+                if not isinstance(item, text_type):
+                    result[i] = item.decode('utf-8')
+        return result
+
+    __next__ = next
+
+class CSVWriter(CSVBase):
+    def __init__(self, fn, **kwargs):
+        self.stream = _csv_open(fn, 'w')
+        self.writer = csv.writer(self.stream, **self.defaults)
+
+    def writerow(self, row):
+        if sys.version_info[0] < 3:
+            r = []
+            for item in row:
+                if isinstance(item, text_type):
+                    item = item.encode('utf-8')
+                r.append(item)
+            row = r
+        self.writer.writerow(row)
+
+#
+#   Configurator functionality
+#
+
+class Configurator(BaseConfigurator):
+
+    value_converters = dict(BaseConfigurator.value_converters)
+    value_converters['inc'] = 'inc_convert'
+
+    def __init__(self, config, base=None):
+        super(Configurator, self).__init__(config)
+        self.base = base or os.getcwd()
+
+    def configure_custom(self, config):
+        def convert(o):
+            if isinstance(o, (list, tuple)):
+                result = type(o)([convert(i) for i in o])
+            elif isinstance(o, dict):
+                if '()' in o:
+                    result = self.configure_custom(o)
+                else:
+                    result = {}
+                    for k in o:
+                        result[k] = convert(o[k])
+            else:
+                result = self.convert(o)
+            return result
+
+        c = config.pop('()')
+        if not callable(c):
+            c = self.resolve(c)
+        props = config.pop('.', None)
+        # Check for valid identifiers
+        args = config.pop('[]', ())
+        if args:
+            args = tuple([convert(o) for o in args])
+        items = [(k, convert(config[k])) for k in config if valid_ident(k)]
+        kwargs = dict(items)
+        result = c(*args, **kwargs)
+        if props:
+            for n, v in props.items():
+                setattr(result, n, convert(v))
+        return result
+
+    def __getitem__(self, key):
+        result = self.config[key]
+        if isinstance(result, dict) and '()' in result:
+            self.config[key] = result = self.configure_custom(result)
+        return result
+
+    def inc_convert(self, value):
+        """Default converter for the inc:// protocol."""
+        if not os.path.isabs(value):
+            value = os.path.join(self.base, value)
+        with codecs.open(value, 'r', encoding='utf-8') as f:
+            result = json.load(f)
+        return result
+
+
+class SubprocessMixin(object):
+    """
+    Mixin for running subprocesses and capturing their output
+    """
+    def __init__(self, verbose=False, progress=None):
+        self.verbose = verbose
+        self.progress = progress
+
+    def reader(self, stream, context):
+        """
+        Read lines from a subprocess' output stream and either pass to a progress
+        callable (if specified) or write progress information to sys.stderr.
+        """
+        progress = self.progress
+        verbose = self.verbose
+        while True:
+            s = stream.readline()
+            if not s:
+                break
+            if progress is not None:
+                progress(s, context)
+            else:
+                if not verbose:
+                    sys.stderr.write('.')
+                else:
+                    sys.stderr.write(s.decode('utf-8'))
+                sys.stderr.flush()
+        stream.close()
+
+    def run_command(self, cmd, **kwargs):
+        p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE, **kwargs)
+        t1 = threading.Thread(target=self.reader, args=(p.stdout, 'stdout'))
+        t1.start()
+        t2 = threading.Thread(target=self.reader, args=(p.stderr, 'stderr'))
+        t2.start()
+        p.wait()
+        t1.join()
+        t2.join()
+        if self.progress is not None:
+            self.progress('done.', 'main')
+        elif self.verbose:
+            sys.stderr.write('done.\n')
+        return p
+
+
+def normalize_name(name):
+    """Normalize a python package name a la PEP 503"""
+    # https://www.python.org/dev/peps/pep-0503/#normalized-names
+    return re.sub('[-_.]+', '-', name).lower()
+
+# def _get_pypirc_command():
+    # """
+    # Get the distutils command for interacting with PyPI configurations.
+    # :return: the command.
+    # """
+    # from distutils.core import Distribution
+    # from distutils.config import PyPIRCCommand
+    # d = Distribution()
+    # return PyPIRCCommand(d)
+
+class PyPIRCFile(object):
+
+    DEFAULT_REPOSITORY = 'https://upload.pypi.org/legacy/'
+    DEFAULT_REALM = 'pypi'
+
+    def __init__(self, fn=None, url=None):
+        if fn is None:
+            fn = os.path.join(os.path.expanduser('~'), '.pypirc')
+        self.filename = fn
+        self.url = url
+
+    def read(self):
+        result = {}
+
+        if os.path.exists(self.filename):
+            repository = self.url or self.DEFAULT_REPOSITORY
+
+            config = configparser.RawConfigParser()
+            config.read(self.filename)
+            sections = config.sections()
+            if 'distutils' in sections:
+                # let's get the list of servers
+                index_servers = config.get('distutils', 'index-servers')
+                _servers = [server.strip() for server in
+                            index_servers.split('\n')
+                            if server.strip() != '']
+                if _servers == []:
+                    # nothing set, let's try to get the default pypi
+                    if 'pypi' in sections:
+                        _servers = ['pypi']
+                else:
+                    for server in _servers:
+                        result = {'server': server}
+                        result['username'] = config.get(server, 'username')
+
+                        # optional params
+                        for key, default in (('repository', self.DEFAULT_REPOSITORY),
+                                             ('realm', self.DEFAULT_REALM),
+                                             ('password', None)):
+                            if config.has_option(server, key):
+                                result[key] = config.get(server, key)
+                            else:
+                                result[key] = default
+
+                        # work around people having "repository" for the "pypi"
+                        # section of their config set to the HTTP (rather than
+                        # HTTPS) URL
+                        if (server == 'pypi' and
+                            repository in (self.DEFAULT_REPOSITORY, 'pypi')):
+                            result['repository'] = self.DEFAULT_REPOSITORY
+                        elif (result['server'] != repository and
+                              result['repository'] != repository):
+                            result = {}
+            elif 'server-login' in sections:
+                # old format
+                server = 'server-login'
+                if config.has_option(server, 'repository'):
+                    repository = config.get(server, 'repository')
+                else:
+                    repository = self.DEFAULT_REPOSITORY
+                result = {
+                    'username': config.get(server, 'username'),
+                    'password': config.get(server, 'password'),
+                    'repository': repository,
+                    'server': server,
+                    'realm': self.DEFAULT_REALM
+                }
+        return result
+
+    def update(self, username, password):
+        # import pdb; pdb.set_trace()
+        config = configparser.RawConfigParser()
+        fn = self.filename
+        config.read(fn)
+        if not config.has_section('pypi'):
+            config.add_section('pypi')
+        config.set('pypi', 'username', username)
+        config.set('pypi', 'password', password)
+        with open(fn, 'w') as f:
+            config.write(f)
+
+def _load_pypirc(index):
+    """
+    Read the PyPI access configuration as supported by distutils.
+    """
+    return PyPIRCFile(url=index.url).read()
+
+def _store_pypirc(index):
+    PyPIRCFile().update(index.username, index.password)
+
+#
+# get_platform()/get_host_platform() copied from Python 3.10.a0 source, with some minor
+# tweaks
+#
+
+def get_host_platform():
+    """Return a string that identifies the current platform.  This is used mainly to
+    distinguish platform-specific build directories and platform-specific built
+    distributions.  Typically includes the OS name and version and the
+    architecture (as supplied by 'os.uname()'), although the exact information
+    included depends on the OS; eg. on Linux, the kernel version isn't
+    particularly important.
+
+    Examples of returned values:
+       linux-i586
+       linux-alpha (?)
+       solaris-2.6-sun4u
+
+    Windows will return one of:
+       win-amd64 (64bit Windows on AMD64 (aka x86_64, Intel64, EM64T, etc)
+       win32 (all others - specifically, sys.platform is returned)
+
+    For other non-POSIX platforms, currently just returns 'sys.platform'.
+
+    """
+    if os.name == 'nt':
+        if 'amd64' in sys.version.lower():
+            return 'win-amd64'
+        if '(arm)' in sys.version.lower():
+            return 'win-arm32'
+        if '(arm64)' in sys.version.lower():
+            return 'win-arm64'
+        return sys.platform
+
+    # Set for cross builds explicitly
+    if "_PYTHON_HOST_PLATFORM" in os.environ:
+        return os.environ["_PYTHON_HOST_PLATFORM"]
+
+    if os.name != 'posix' or not hasattr(os, 'uname'):
+        # XXX what about the architecture? NT is Intel or Alpha,
+        # Mac OS is M68k or PPC, etc.
+        return sys.platform
+
+    # Try to distinguish various flavours of Unix
+
+    (osname, host, release, version, machine) = os.uname()
+
+    # Convert the OS name to lowercase, remove '/' characters, and translate
+    # spaces (for "Power Macintosh")
+    osname = osname.lower().replace('/', '')
+    machine = machine.replace(' ', '_').replace('/', '-')
+
+    if osname[:5] == 'linux':
+        # At least on Linux/Intel, 'machine' is the processor --
+        # i386, etc.
+        # XXX what about Alpha, SPARC, etc?
+        return  "%s-%s" % (osname, machine)
+
+    elif osname[:5] == 'sunos':
+        if release[0] >= '5':           # SunOS 5 == Solaris 2
+            osname = 'solaris'
+            release = '%d.%s' % (int(release[0]) - 3, release[2:])
+            # We can't use 'platform.architecture()[0]' because a
+            # bootstrap problem. We use a dict to get an error
+            # if some suspicious happens.
+            bitness = {2147483647:'32bit', 9223372036854775807:'64bit'}
+            machine += '.%s' % bitness[sys.maxsize]
+        # fall through to standard osname-release-machine representation
+    elif osname[:3] == 'aix':
+        from _aix_support import aix_platform
+        return aix_platform()
+    elif osname[:6] == 'cygwin':
+        osname = 'cygwin'
+        rel_re = re.compile (r'[\d.]+', re.ASCII)
+        m = rel_re.match(release)
+        if m:
+            release = m.group()
+    elif osname[:6] == 'darwin':
+        import _osx_support, distutils.sysconfig
+        osname, release, machine = _osx_support.get_platform_osx(
+                                        distutils.sysconfig.get_config_vars(),
+                                        osname, release, machine)
+
+    return '%s-%s-%s' % (osname, release, machine)
+
+
+_TARGET_TO_PLAT = {
+    'x86' : 'win32',
+    'x64' : 'win-amd64',
+    'arm' : 'win-arm32',
+}
+
+
+def get_platform():
+    if os.name != 'nt':
+        return get_host_platform()
+    cross_compilation_target = os.environ.get('VSCMD_ARG_TGT_ARCH')
+    if cross_compilation_target not in _TARGET_TO_PLAT:
+        return get_host_platform()
+    return _TARGET_TO_PLAT[cross_compilation_target]
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/version.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/version.py
new file mode 100644
index 0000000..c7c8bb6
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/version.py
@@ -0,0 +1,739 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2017 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""
+Implementation of a flexible versioning scheme providing support for PEP-440,
+setuptools-compatible and semantic versioning.
+"""
+
+import logging
+import re
+
+from .compat import string_types
+from .util import parse_requirement
+
+__all__ = ['NormalizedVersion', 'NormalizedMatcher',
+           'LegacyVersion', 'LegacyMatcher',
+           'SemanticVersion', 'SemanticMatcher',
+           'UnsupportedVersionError', 'get_scheme']
+
+logger = logging.getLogger(__name__)
+
+
+class UnsupportedVersionError(ValueError):
+    """This is an unsupported version."""
+    pass
+
+
+class Version(object):
+    def __init__(self, s):
+        self._string = s = s.strip()
+        self._parts = parts = self.parse(s)
+        assert isinstance(parts, tuple)
+        assert len(parts) > 0
+
+    def parse(self, s):
+        raise NotImplementedError('please implement in a subclass')
+
+    def _check_compatible(self, other):
+        if type(self) != type(other):
+            raise TypeError('cannot compare %r and %r' % (self, other))
+
+    def __eq__(self, other):
+        self._check_compatible(other)
+        return self._parts == other._parts
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    def __lt__(self, other):
+        self._check_compatible(other)
+        return self._parts < other._parts
+
+    def __gt__(self, other):
+        return not (self.__lt__(other) or self.__eq__(other))
+
+    def __le__(self, other):
+        return self.__lt__(other) or self.__eq__(other)
+
+    def __ge__(self, other):
+        return self.__gt__(other) or self.__eq__(other)
+
+    # See http://docs.python.org/reference/datamodel#object.__hash__
+    def __hash__(self):
+        return hash(self._parts)
+
+    def __repr__(self):
+        return "%s('%s')" % (self.__class__.__name__, self._string)
+
+    def __str__(self):
+        return self._string
+
+    @property
+    def is_prerelease(self):
+        raise NotImplementedError('Please implement in subclasses.')
+
+
+class Matcher(object):
+    version_class = None
+
+    # value is either a callable or the name of a method
+    _operators = {
+        '<': lambda v, c, p: v < c,
+        '>': lambda v, c, p: v > c,
+        '<=': lambda v, c, p: v == c or v < c,
+        '>=': lambda v, c, p: v == c or v > c,
+        '==': lambda v, c, p: v == c,
+        '===': lambda v, c, p: v == c,
+        # by default, compatible => >=.
+        '~=': lambda v, c, p: v == c or v > c,
+        '!=': lambda v, c, p: v != c,
+    }
+
+    # this is a method only to support alternative implementations
+    # via overriding
+    def parse_requirement(self, s):
+        return parse_requirement(s)
+
+    def __init__(self, s):
+        if self.version_class is None:
+            raise ValueError('Please specify a version class')
+        self._string = s = s.strip()
+        r = self.parse_requirement(s)
+        if not r:
+            raise ValueError('Not valid: %r' % s)
+        self.name = r.name
+        self.key = self.name.lower()    # for case-insensitive comparisons
+        clist = []
+        if r.constraints:
+            # import pdb; pdb.set_trace()
+            for op, s in r.constraints:
+                if s.endswith('.*'):
+                    if op not in ('==', '!='):
+                        raise ValueError('\'.*\' not allowed for '
+                                         '%r constraints' % op)
+                    # Could be a partial version (e.g. for '2.*') which
+                    # won't parse as a version, so keep it as a string
+                    vn, prefix = s[:-2], True
+                    # Just to check that vn is a valid version
+                    self.version_class(vn)
+                else:
+                    # Should parse as a version, so we can create an
+                    # instance for the comparison
+                    vn, prefix = self.version_class(s), False
+                clist.append((op, vn, prefix))
+        self._parts = tuple(clist)
+
+    def match(self, version):
+        """
+        Check if the provided version matches the constraints.
+
+        :param version: The version to match against this instance.
+        :type version: String or :class:`Version` instance.
+        """
+        if isinstance(version, string_types):
+            version = self.version_class(version)
+        for operator, constraint, prefix in self._parts:
+            f = self._operators.get(operator)
+            if isinstance(f, string_types):
+                f = getattr(self, f)
+            if not f:
+                msg = ('%r not implemented '
+                       'for %s' % (operator, self.__class__.__name__))
+                raise NotImplementedError(msg)
+            if not f(version, constraint, prefix):
+                return False
+        return True
+
+    @property
+    def exact_version(self):
+        result = None
+        if len(self._parts) == 1 and self._parts[0][0] in ('==', '==='):
+            result = self._parts[0][1]
+        return result
+
+    def _check_compatible(self, other):
+        if type(self) != type(other) or self.name != other.name:
+            raise TypeError('cannot compare %s and %s' % (self, other))
+
+    def __eq__(self, other):
+        self._check_compatible(other)
+        return self.key == other.key and self._parts == other._parts
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    # See http://docs.python.org/reference/datamodel#object.__hash__
+    def __hash__(self):
+        return hash(self.key) + hash(self._parts)
+
+    def __repr__(self):
+        return "%s(%r)" % (self.__class__.__name__, self._string)
+
+    def __str__(self):
+        return self._string
+
+
+PEP440_VERSION_RE = re.compile(r'^v?(\d+!)?(\d+(\.\d+)*)((a|b|c|rc)(\d+))?'
+                               r'(\.(post)(\d+))?(\.(dev)(\d+))?'
+                               r'(\+([a-zA-Z\d]+(\.[a-zA-Z\d]+)?))?$')
+
+
+def _pep_440_key(s):
+    s = s.strip()
+    m = PEP440_VERSION_RE.match(s)
+    if not m:
+        raise UnsupportedVersionError('Not a valid version: %s' % s)
+    groups = m.groups()
+    nums = tuple(int(v) for v in groups[1].split('.'))
+    while len(nums) > 1 and nums[-1] == 0:
+        nums = nums[:-1]
+
+    if not groups[0]:
+        epoch = 0
+    else:
+        epoch = int(groups[0][:-1])
+    pre = groups[4:6]
+    post = groups[7:9]
+    dev = groups[10:12]
+    local = groups[13]
+    if pre == (None, None):
+        pre = ()
+    else:
+        pre = pre[0], int(pre[1])
+    if post == (None, None):
+        post = ()
+    else:
+        post = post[0], int(post[1])
+    if dev == (None, None):
+        dev = ()
+    else:
+        dev = dev[0], int(dev[1])
+    if local is None:
+        local = ()
+    else:
+        parts = []
+        for part in local.split('.'):
+            # to ensure that numeric compares as > lexicographic, avoid
+            # comparing them directly, but encode a tuple which ensures
+            # correct sorting
+            if part.isdigit():
+                part = (1, int(part))
+            else:
+                part = (0, part)
+            parts.append(part)
+        local = tuple(parts)
+    if not pre:
+        # either before pre-release, or final release and after
+        if not post and dev:
+            # before pre-release
+            pre = ('a', -1)     # to sort before a0
+        else:
+            pre = ('z',)        # to sort after all pre-releases
+    # now look at the state of post and dev.
+    if not post:
+        post = ('_',)   # sort before 'a'
+    if not dev:
+        dev = ('final',)
+
+    #print('%s -> %s' % (s, m.groups()))
+    return epoch, nums, pre, post, dev, local
+
+
+_normalized_key = _pep_440_key
+
+
+class NormalizedVersion(Version):
+    """A rational version.
+
+    Good:
+        1.2         # equivalent to "1.2.0"
+        1.2.0
+        1.2a1
+        1.2.3a2
+        1.2.3b1
+        1.2.3c1
+        1.2.3.4
+        TODO: fill this out
+
+    Bad:
+        1           # minimum two numbers
+        1.2a        # release level must have a release serial
+        1.2.3b
+    """
+    def parse(self, s):
+        result = _normalized_key(s)
+        # _normalized_key loses trailing zeroes in the release
+        # clause, since that's needed to ensure that X.Y == X.Y.0 == X.Y.0.0
+        # However, PEP 440 prefix matching needs it: for example,
+        # (~= 1.4.5.0) matches differently to (~= 1.4.5.0.0).
+        m = PEP440_VERSION_RE.match(s)      # must succeed
+        groups = m.groups()
+        self._release_clause = tuple(int(v) for v in groups[1].split('.'))
+        return result
+
+    PREREL_TAGS = set(['a', 'b', 'c', 'rc', 'dev'])
+
+    @property
+    def is_prerelease(self):
+        return any(t[0] in self.PREREL_TAGS for t in self._parts if t)
+
+
+def _match_prefix(x, y):
+    x = str(x)
+    y = str(y)
+    if x == y:
+        return True
+    if not x.startswith(y):
+        return False
+    n = len(y)
+    return x[n] == '.'
+
+
+class NormalizedMatcher(Matcher):
+    version_class = NormalizedVersion
+
+    # value is either a callable or the name of a method
+    _operators = {
+        '~=': '_match_compatible',
+        '<': '_match_lt',
+        '>': '_match_gt',
+        '<=': '_match_le',
+        '>=': '_match_ge',
+        '==': '_match_eq',
+        '===': '_match_arbitrary',
+        '!=': '_match_ne',
+    }
+
+    def _adjust_local(self, version, constraint, prefix):
+        if prefix:
+            strip_local = '+' not in constraint and version._parts[-1]
+        else:
+            # both constraint and version are
+            # NormalizedVersion instances.
+            # If constraint does not have a local component,
+            # ensure the version doesn't, either.
+            strip_local = not constraint._parts[-1] and version._parts[-1]
+        if strip_local:
+            s = version._string.split('+', 1)[0]
+            version = self.version_class(s)
+        return version, constraint
+
+    def _match_lt(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if version >= constraint:
+            return False
+        release_clause = constraint._release_clause
+        pfx = '.'.join([str(i) for i in release_clause])
+        return not _match_prefix(version, pfx)
+
+    def _match_gt(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if version <= constraint:
+            return False
+        release_clause = constraint._release_clause
+        pfx = '.'.join([str(i) for i in release_clause])
+        return not _match_prefix(version, pfx)
+
+    def _match_le(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        return version <= constraint
+
+    def _match_ge(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        return version >= constraint
+
+    def _match_eq(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if not prefix:
+            result = (version == constraint)
+        else:
+            result = _match_prefix(version, constraint)
+        return result
+
+    def _match_arbitrary(self, version, constraint, prefix):
+        return str(version) == str(constraint)
+
+    def _match_ne(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if not prefix:
+            result = (version != constraint)
+        else:
+            result = not _match_prefix(version, constraint)
+        return result
+
+    def _match_compatible(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if version == constraint:
+            return True
+        if version < constraint:
+            return False
+#        if not prefix:
+#            return True
+        release_clause = constraint._release_clause
+        if len(release_clause) > 1:
+            release_clause = release_clause[:-1]
+        pfx = '.'.join([str(i) for i in release_clause])
+        return _match_prefix(version, pfx)
+
+_REPLACEMENTS = (
+    (re.compile('[.+-]$'), ''),                     # remove trailing puncts
+    (re.compile(r'^[.](\d)'), r'0.\1'),             # .N -> 0.N at start
+    (re.compile('^[.-]'), ''),                      # remove leading puncts
+    (re.compile(r'^\((.*)\)$'), r'\1'),             # remove parentheses
+    (re.compile(r'^v(ersion)?\s*(\d+)'), r'\2'),    # remove leading v(ersion)
+    (re.compile(r'^r(ev)?\s*(\d+)'), r'\2'),        # remove leading v(ersion)
+    (re.compile('[.]{2,}'), '.'),                   # multiple runs of '.'
+    (re.compile(r'\b(alfa|apha)\b'), 'alpha'),      # misspelt alpha
+    (re.compile(r'\b(pre-alpha|prealpha)\b'),
+                'pre.alpha'),                       # standardise
+    (re.compile(r'\(beta\)$'), 'beta'),             # remove parentheses
+)
+
+_SUFFIX_REPLACEMENTS = (
+    (re.compile('^[:~._+-]+'), ''),                   # remove leading puncts
+    (re.compile('[,*")([\\]]'), ''),                  # remove unwanted chars
+    (re.compile('[~:+_ -]'), '.'),                    # replace illegal chars
+    (re.compile('[.]{2,}'), '.'),                   # multiple runs of '.'
+    (re.compile(r'\.$'), ''),                       # trailing '.'
+)
+
+_NUMERIC_PREFIX = re.compile(r'(\d+(\.\d+)*)')
+
+
+def _suggest_semantic_version(s):
+    """
+    Try to suggest a semantic form for a version for which
+    _suggest_normalized_version couldn't come up with anything.
+    """
+    result = s.strip().lower()
+    for pat, repl in _REPLACEMENTS:
+        result = pat.sub(repl, result)
+    if not result:
+        result = '0.0.0'
+
+    # Now look for numeric prefix, and separate it out from
+    # the rest.
+    #import pdb; pdb.set_trace()
+    m = _NUMERIC_PREFIX.match(result)
+    if not m:
+        prefix = '0.0.0'
+        suffix = result
+    else:
+        prefix = m.groups()[0].split('.')
+        prefix = [int(i) for i in prefix]
+        while len(prefix) < 3:
+            prefix.append(0)
+        if len(prefix) == 3:
+            suffix = result[m.end():]
+        else:
+            suffix = '.'.join([str(i) for i in prefix[3:]]) + result[m.end():]
+            prefix = prefix[:3]
+        prefix = '.'.join([str(i) for i in prefix])
+        suffix = suffix.strip()
+    if suffix:
+        #import pdb; pdb.set_trace()
+        # massage the suffix.
+        for pat, repl in _SUFFIX_REPLACEMENTS:
+            suffix = pat.sub(repl, suffix)
+
+    if not suffix:
+        result = prefix
+    else:
+        sep = '-' if 'dev' in suffix else '+'
+        result = prefix + sep + suffix
+    if not is_semver(result):
+        result = None
+    return result
+
+
+def _suggest_normalized_version(s):
+    """Suggest a normalized version close to the given version string.
+
+    If you have a version string that isn't rational (i.e. NormalizedVersion
+    doesn't like it) then you might be able to get an equivalent (or close)
+    rational version from this function.
+
+    This does a number of simple normalizations to the given string, based
+    on observation of versions currently in use on PyPI. Given a dump of
+    those version during PyCon 2009, 4287 of them:
+    - 2312 (53.93%) match NormalizedVersion without change
+      with the automatic suggestion
+    - 3474 (81.04%) match when using this suggestion method
+
+    @param s {str} An irrational version string.
+    @returns A rational version string, or None, if couldn't determine one.
+    """
+    try:
+        _normalized_key(s)
+        return s   # already rational
+    except UnsupportedVersionError:
+        pass
+
+    rs = s.lower()
+
+    # part of this could use maketrans
+    for orig, repl in (('-alpha', 'a'), ('-beta', 'b'), ('alpha', 'a'),
+                       ('beta', 'b'), ('rc', 'c'), ('-final', ''),
+                       ('-pre', 'c'),
+                       ('-release', ''), ('.release', ''), ('-stable', ''),
+                       ('+', '.'), ('_', '.'), (' ', ''), ('.final', ''),
+                       ('final', '')):
+        rs = rs.replace(orig, repl)
+
+    # if something ends with dev or pre, we add a 0
+    rs = re.sub(r"pre$", r"pre0", rs)
+    rs = re.sub(r"dev$", r"dev0", rs)
+
+    # if we have something like "b-2" or "a.2" at the end of the
+    # version, that is probably beta, alpha, etc
+    # let's remove the dash or dot
+    rs = re.sub(r"([abc]|rc)[\-\.](\d+)$", r"\1\2", rs)
+
+    # 1.0-dev-r371 -> 1.0.dev371
+    # 0.1-dev-r79 -> 0.1.dev79
+    rs = re.sub(r"[\-\.](dev)[\-\.]?r?(\d+)$", r".\1\2", rs)
+
+    # Clean: 2.0.a.3, 2.0.b1, 0.9.0~c1
+    rs = re.sub(r"[.~]?([abc])\.?", r"\1", rs)
+
+    # Clean: v0.3, v1.0
+    if rs.startswith('v'):
+        rs = rs[1:]
+
+    # Clean leading '0's on numbers.
+    #TODO: unintended side-effect on, e.g., "2003.05.09"
+    # PyPI stats: 77 (~2%) better
+    rs = re.sub(r"\b0+(\d+)(?!\d)", r"\1", rs)
+
+    # Clean a/b/c with no version. E.g. "1.0a" -> "1.0a0". Setuptools infers
+    # zero.
+    # PyPI stats: 245 (7.56%) better
+    rs = re.sub(r"(\d+[abc])$", r"\g<1>0", rs)
+
+    # the 'dev-rNNN' tag is a dev tag
+    rs = re.sub(r"\.?(dev-r|dev\.r)\.?(\d+)$", r".dev\2", rs)
+
+    # clean the - when used as a pre delimiter
+    rs = re.sub(r"-(a|b|c)(\d+)$", r"\1\2", rs)
+
+    # a terminal "dev" or "devel" can be changed into ".dev0"
+    rs = re.sub(r"[\.\-](dev|devel)$", r".dev0", rs)
+
+    # a terminal "dev" can be changed into ".dev0"
+    rs = re.sub(r"(?![\.\-])dev$", r".dev0", rs)
+
+    # a terminal "final" or "stable" can be removed
+    rs = re.sub(r"(final|stable)$", "", rs)
+
+    # The 'r' and the '-' tags are post release tags
+    #   0.4a1.r10       ->  0.4a1.post10
+    #   0.9.33-17222    ->  0.9.33.post17222
+    #   0.9.33-r17222   ->  0.9.33.post17222
+    rs = re.sub(r"\.?(r|-|-r)\.?(\d+)$", r".post\2", rs)
+
+    # Clean 'r' instead of 'dev' usage:
+    #   0.9.33+r17222   ->  0.9.33.dev17222
+    #   1.0dev123       ->  1.0.dev123
+    #   1.0.git123      ->  1.0.dev123
+    #   1.0.bzr123      ->  1.0.dev123
+    #   0.1a0dev.123    ->  0.1a0.dev123
+    # PyPI stats:  ~150 (~4%) better
+    rs = re.sub(r"\.?(dev|git|bzr)\.?(\d+)$", r".dev\2", rs)
+
+    # Clean '.pre' (normalized from '-pre' above) instead of 'c' usage:
+    #   0.2.pre1        ->  0.2c1
+    #   0.2-c1         ->  0.2c1
+    #   1.0preview123   ->  1.0c123
+    # PyPI stats: ~21 (0.62%) better
+    rs = re.sub(r"\.?(pre|preview|-c)(\d+)$", r"c\g<2>", rs)
+
+    # Tcl/Tk uses "px" for their post release markers
+    rs = re.sub(r"p(\d+)$", r".post\1", rs)
+
+    try:
+        _normalized_key(rs)
+    except UnsupportedVersionError:
+        rs = None
+    return rs
+
+#
+#   Legacy version processing (distribute-compatible)
+#
+
+_VERSION_PART = re.compile(r'([a-z]+|\d+|[\.-])', re.I)
+_VERSION_REPLACE = {
+    'pre': 'c',
+    'preview': 'c',
+    '-': 'final-',
+    'rc': 'c',
+    'dev': '@',
+    '': None,
+    '.': None,
+}
+
+
+def _legacy_key(s):
+    def get_parts(s):
+        result = []
+        for p in _VERSION_PART.split(s.lower()):
+            p = _VERSION_REPLACE.get(p, p)
+            if p:
+                if '0' <= p[:1] <= '9':
+                    p = p.zfill(8)
+                else:
+                    p = '*' + p
+                result.append(p)
+        result.append('*final')
+        return result
+
+    result = []
+    for p in get_parts(s):
+        if p.startswith('*'):
+            if p < '*final':
+                while result and result[-1] == '*final-':
+                    result.pop()
+            while result and result[-1] == '00000000':
+                result.pop()
+        result.append(p)
+    return tuple(result)
+
+
+class LegacyVersion(Version):
+    def parse(self, s):
+        return _legacy_key(s)
+
+    @property
+    def is_prerelease(self):
+        result = False
+        for x in self._parts:
+            if (isinstance(x, string_types) and x.startswith('*') and
+                x < '*final'):
+                result = True
+                break
+        return result
+
+
+class LegacyMatcher(Matcher):
+    version_class = LegacyVersion
+
+    _operators = dict(Matcher._operators)
+    _operators['~='] = '_match_compatible'
+
+    numeric_re = re.compile(r'^(\d+(\.\d+)*)')
+
+    def _match_compatible(self, version, constraint, prefix):
+        if version < constraint:
+            return False
+        m = self.numeric_re.match(str(constraint))
+        if not m:
+            logger.warning('Cannot compute compatible match for version %s '
+                           ' and constraint %s', version, constraint)
+            return True
+        s = m.groups()[0]
+        if '.' in s:
+            s = s.rsplit('.', 1)[0]
+        return _match_prefix(version, s)
+
+#
+#   Semantic versioning
+#
+
+_SEMVER_RE = re.compile(r'^(\d+)\.(\d+)\.(\d+)'
+                        r'(-[a-z0-9]+(\.[a-z0-9-]+)*)?'
+                        r'(\+[a-z0-9]+(\.[a-z0-9-]+)*)?$', re.I)
+
+
+def is_semver(s):
+    return _SEMVER_RE.match(s)
+
+
+def _semantic_key(s):
+    def make_tuple(s, absent):
+        if s is None:
+            result = (absent,)
+        else:
+            parts = s[1:].split('.')
+            # We can't compare ints and strings on Python 3, so fudge it
+            # by zero-filling numeric values so simulate a numeric comparison
+            result = tuple([p.zfill(8) if p.isdigit() else p for p in parts])
+        return result
+
+    m = is_semver(s)
+    if not m:
+        raise UnsupportedVersionError(s)
+    groups = m.groups()
+    major, minor, patch = [int(i) for i in groups[:3]]
+    # choose the '|' and '*' so that versions sort correctly
+    pre, build = make_tuple(groups[3], '|'), make_tuple(groups[5], '*')
+    return (major, minor, patch), pre, build
+
+
+class SemanticVersion(Version):
+    def parse(self, s):
+        return _semantic_key(s)
+
+    @property
+    def is_prerelease(self):
+        return self._parts[1][0] != '|'
+
+
+class SemanticMatcher(Matcher):
+    version_class = SemanticVersion
+
+
+class VersionScheme(object):
+    def __init__(self, key, matcher, suggester=None):
+        self.key = key
+        self.matcher = matcher
+        self.suggester = suggester
+
+    def is_valid_version(self, s):
+        try:
+            self.matcher.version_class(s)
+            result = True
+        except UnsupportedVersionError:
+            result = False
+        return result
+
+    def is_valid_matcher(self, s):
+        try:
+            self.matcher(s)
+            result = True
+        except UnsupportedVersionError:
+            result = False
+        return result
+
+    def is_valid_constraint_list(self, s):
+        """
+        Used for processing some metadata fields
+        """
+        # See issue #140. Be tolerant of a single trailing comma.
+        if s.endswith(','):
+            s = s[:-1]
+        return self.is_valid_matcher('dummy_name (%s)' % s)
+
+    def suggest(self, s):
+        if self.suggester is None:
+            result = None
+        else:
+            result = self.suggester(s)
+        return result
+
+_SCHEMES = {
+    'normalized': VersionScheme(_normalized_key, NormalizedMatcher,
+                                _suggest_normalized_version),
+    'legacy': VersionScheme(_legacy_key, LegacyMatcher, lambda self, s: s),
+    'semantic': VersionScheme(_semantic_key, SemanticMatcher,
+                              _suggest_semantic_version),
+}
+
+_SCHEMES['default'] = _SCHEMES['normalized']
+
+
+def get_scheme(name):
+    if name not in _SCHEMES:
+        raise ValueError('unknown scheme name: %r' % name)
+    return _SCHEMES[name]
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/w32.exe b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/w32.exe
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diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/w64-arm.exe b/utils/python-venv/Lib/site-packages/pip/_vendor/distlib/w64-arm.exe
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ZYSG}LVMUqZ[^-]+)
+-(?P\d+[^-]*)
+(-(?P\d+[^-]*))?
+-(?P\w+\d+(\.\w+\d+)*)
+-(?P\w+)
+-(?P\w+(\.\w+)*)
+\.whl$
+''', re.IGNORECASE | re.VERBOSE)
+
+NAME_VERSION_RE = re.compile(r'''
+(?P[^-]+)
+-(?P\d+[^-]*)
+(-(?P\d+[^-]*))?$
+''', re.IGNORECASE | re.VERBOSE)
+
+SHEBANG_RE = re.compile(br'\s*#![^\r\n]*')
+SHEBANG_DETAIL_RE = re.compile(br'^(\s*#!("[^"]+"|\S+))\s+(.*)$')
+SHEBANG_PYTHON = b'#!python'
+SHEBANG_PYTHONW = b'#!pythonw'
+
+if os.sep == '/':
+    to_posix = lambda o: o
+else:
+    to_posix = lambda o: o.replace(os.sep, '/')
+
+
+class Mounter(object):
+    def __init__(self):
+        self.impure_wheels = {}
+        self.libs = {}
+
+    def add(self, pathname, extensions):
+        self.impure_wheels[pathname] = extensions
+        self.libs.update(extensions)
+
+    def remove(self, pathname):
+        extensions = self.impure_wheels.pop(pathname)
+        for k, v in extensions:
+            if k in self.libs:
+                del self.libs[k]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.libs:
+            result = self
+        else:
+            result = None
+        return result
+
+    def load_module(self, fullname):
+        if fullname in sys.modules:
+            result = sys.modules[fullname]
+        else:
+            if fullname not in self.libs:
+                raise ImportError('unable to find extension for %s' % fullname)
+            result = imp.load_dynamic(fullname, self.libs[fullname])
+            result.__loader__ = self
+            parts = fullname.rsplit('.', 1)
+            if len(parts) > 1:
+                result.__package__ = parts[0]
+        return result
+
+_hook = Mounter()
+
+
+class Wheel(object):
+    """
+    Class to build and install from Wheel files (PEP 427).
+    """
+
+    wheel_version = (1, 1)
+    hash_kind = 'sha256'
+
+    def __init__(self, filename=None, sign=False, verify=False):
+        """
+        Initialise an instance using a (valid) filename.
+        """
+        self.sign = sign
+        self.should_verify = verify
+        self.buildver = ''
+        self.pyver = [PYVER]
+        self.abi = ['none']
+        self.arch = ['any']
+        self.dirname = os.getcwd()
+        if filename is None:
+            self.name = 'dummy'
+            self.version = '0.1'
+            self._filename = self.filename
+        else:
+            m = NAME_VERSION_RE.match(filename)
+            if m:
+                info = m.groupdict('')
+                self.name = info['nm']
+                # Reinstate the local version separator
+                self.version = info['vn'].replace('_', '-')
+                self.buildver = info['bn']
+                self._filename = self.filename
+            else:
+                dirname, filename = os.path.split(filename)
+                m = FILENAME_RE.match(filename)
+                if not m:
+                    raise DistlibException('Invalid name or '
+                                           'filename: %r' % filename)
+                if dirname:
+                    self.dirname = os.path.abspath(dirname)
+                self._filename = filename
+                info = m.groupdict('')
+                self.name = info['nm']
+                self.version = info['vn']
+                self.buildver = info['bn']
+                self.pyver = info['py'].split('.')
+                self.abi = info['bi'].split('.')
+                self.arch = info['ar'].split('.')
+
+    @property
+    def filename(self):
+        """
+        Build and return a filename from the various components.
+        """
+        if self.buildver:
+            buildver = '-' + self.buildver
+        else:
+            buildver = ''
+        pyver = '.'.join(self.pyver)
+        abi = '.'.join(self.abi)
+        arch = '.'.join(self.arch)
+        # replace - with _ as a local version separator
+        version = self.version.replace('-', '_')
+        return '%s-%s%s-%s-%s-%s.whl' % (self.name, version, buildver,
+                                         pyver, abi, arch)
+
+    @property
+    def exists(self):
+        path = os.path.join(self.dirname, self.filename)
+        return os.path.isfile(path)
+
+    @property
+    def tags(self):
+        for pyver in self.pyver:
+            for abi in self.abi:
+                for arch in self.arch:
+                    yield pyver, abi, arch
+
+    @cached_property
+    def metadata(self):
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        info_dir = '%s.dist-info' % name_ver
+        wrapper = codecs.getreader('utf-8')
+        with ZipFile(pathname, 'r') as zf:
+            wheel_metadata = self.get_wheel_metadata(zf)
+            wv = wheel_metadata['Wheel-Version'].split('.', 1)
+            file_version = tuple([int(i) for i in wv])
+            # if file_version < (1, 1):
+                # fns = [WHEEL_METADATA_FILENAME, METADATA_FILENAME,
+                       # LEGACY_METADATA_FILENAME]
+            # else:
+                # fns = [WHEEL_METADATA_FILENAME, METADATA_FILENAME]
+            fns = [WHEEL_METADATA_FILENAME, LEGACY_METADATA_FILENAME]
+            result = None
+            for fn in fns:
+                try:
+                    metadata_filename = posixpath.join(info_dir, fn)
+                    with zf.open(metadata_filename) as bf:
+                        wf = wrapper(bf)
+                        result = Metadata(fileobj=wf)
+                        if result:
+                            break
+                except KeyError:
+                    pass
+            if not result:
+                raise ValueError('Invalid wheel, because metadata is '
+                                 'missing: looked in %s' % ', '.join(fns))
+        return result
+
+    def get_wheel_metadata(self, zf):
+        name_ver = '%s-%s' % (self.name, self.version)
+        info_dir = '%s.dist-info' % name_ver
+        metadata_filename = posixpath.join(info_dir, 'WHEEL')
+        with zf.open(metadata_filename) as bf:
+            wf = codecs.getreader('utf-8')(bf)
+            message = message_from_file(wf)
+        return dict(message)
+
+    @cached_property
+    def info(self):
+        pathname = os.path.join(self.dirname, self.filename)
+        with ZipFile(pathname, 'r') as zf:
+            result = self.get_wheel_metadata(zf)
+        return result
+
+    def process_shebang(self, data):
+        m = SHEBANG_RE.match(data)
+        if m:
+            end = m.end()
+            shebang, data_after_shebang = data[:end], data[end:]
+            # Preserve any arguments after the interpreter
+            if b'pythonw' in shebang.lower():
+                shebang_python = SHEBANG_PYTHONW
+            else:
+                shebang_python = SHEBANG_PYTHON
+            m = SHEBANG_DETAIL_RE.match(shebang)
+            if m:
+                args = b' ' + m.groups()[-1]
+            else:
+                args = b''
+            shebang = shebang_python + args
+            data = shebang + data_after_shebang
+        else:
+            cr = data.find(b'\r')
+            lf = data.find(b'\n')
+            if cr < 0 or cr > lf:
+                term = b'\n'
+            else:
+                if data[cr:cr + 2] == b'\r\n':
+                    term = b'\r\n'
+                else:
+                    term = b'\r'
+            data = SHEBANG_PYTHON + term + data
+        return data
+
+    def get_hash(self, data, hash_kind=None):
+        if hash_kind is None:
+            hash_kind = self.hash_kind
+        try:
+            hasher = getattr(hashlib, hash_kind)
+        except AttributeError:
+            raise DistlibException('Unsupported hash algorithm: %r' % hash_kind)
+        result = hasher(data).digest()
+        result = base64.urlsafe_b64encode(result).rstrip(b'=').decode('ascii')
+        return hash_kind, result
+
+    def write_record(self, records, record_path, base):
+        records = list(records) # make a copy, as mutated
+        p = to_posix(os.path.relpath(record_path, base))
+        records.append((p, '', ''))
+        with CSVWriter(record_path) as writer:
+            for row in records:
+                writer.writerow(row)
+
+    def write_records(self, info, libdir, archive_paths):
+        records = []
+        distinfo, info_dir = info
+        hasher = getattr(hashlib, self.hash_kind)
+        for ap, p in archive_paths:
+            with open(p, 'rb') as f:
+                data = f.read()
+            digest = '%s=%s' % self.get_hash(data)
+            size = os.path.getsize(p)
+            records.append((ap, digest, size))
+
+        p = os.path.join(distinfo, 'RECORD')
+        self.write_record(records, p, libdir)
+        ap = to_posix(os.path.join(info_dir, 'RECORD'))
+        archive_paths.append((ap, p))
+
+    def build_zip(self, pathname, archive_paths):
+        with ZipFile(pathname, 'w', zipfile.ZIP_DEFLATED) as zf:
+            for ap, p in archive_paths:
+                logger.debug('Wrote %s to %s in wheel', p, ap)
+                zf.write(p, ap)
+
+    def build(self, paths, tags=None, wheel_version=None):
+        """
+        Build a wheel from files in specified paths, and use any specified tags
+        when determining the name of the wheel.
+        """
+        if tags is None:
+            tags = {}
+
+        libkey = list(filter(lambda o: o in paths, ('purelib', 'platlib')))[0]
+        if libkey == 'platlib':
+            is_pure = 'false'
+            default_pyver = [IMPVER]
+            default_abi = [ABI]
+            default_arch = [ARCH]
+        else:
+            is_pure = 'true'
+            default_pyver = [PYVER]
+            default_abi = ['none']
+            default_arch = ['any']
+
+        self.pyver = tags.get('pyver', default_pyver)
+        self.abi = tags.get('abi', default_abi)
+        self.arch = tags.get('arch', default_arch)
+
+        libdir = paths[libkey]
+
+        name_ver = '%s-%s' % (self.name, self.version)
+        data_dir = '%s.data' % name_ver
+        info_dir = '%s.dist-info' % name_ver
+
+        archive_paths = []
+
+        # First, stuff which is not in site-packages
+        for key in ('data', 'headers', 'scripts'):
+            if key not in paths:
+                continue
+            path = paths[key]
+            if os.path.isdir(path):
+                for root, dirs, files in os.walk(path):
+                    for fn in files:
+                        p = fsdecode(os.path.join(root, fn))
+                        rp = os.path.relpath(p, path)
+                        ap = to_posix(os.path.join(data_dir, key, rp))
+                        archive_paths.append((ap, p))
+                        if key == 'scripts' and not p.endswith('.exe'):
+                            with open(p, 'rb') as f:
+                                data = f.read()
+                            data = self.process_shebang(data)
+                            with open(p, 'wb') as f:
+                                f.write(data)
+
+        # Now, stuff which is in site-packages, other than the
+        # distinfo stuff.
+        path = libdir
+        distinfo = None
+        for root, dirs, files in os.walk(path):
+            if root == path:
+                # At the top level only, save distinfo for later
+                # and skip it for now
+                for i, dn in enumerate(dirs):
+                    dn = fsdecode(dn)
+                    if dn.endswith('.dist-info'):
+                        distinfo = os.path.join(root, dn)
+                        del dirs[i]
+                        break
+                assert distinfo, '.dist-info directory expected, not found'
+
+            for fn in files:
+                # comment out next suite to leave .pyc files in
+                if fsdecode(fn).endswith(('.pyc', '.pyo')):
+                    continue
+                p = os.path.join(root, fn)
+                rp = to_posix(os.path.relpath(p, path))
+                archive_paths.append((rp, p))
+
+        # Now distinfo. Assumed to be flat, i.e. os.listdir is enough.
+        files = os.listdir(distinfo)
+        for fn in files:
+            if fn not in ('RECORD', 'INSTALLER', 'SHARED', 'WHEEL'):
+                p = fsdecode(os.path.join(distinfo, fn))
+                ap = to_posix(os.path.join(info_dir, fn))
+                archive_paths.append((ap, p))
+
+        wheel_metadata = [
+            'Wheel-Version: %d.%d' % (wheel_version or self.wheel_version),
+            'Generator: distlib %s' % __version__,
+            'Root-Is-Purelib: %s' % is_pure,
+        ]
+        for pyver, abi, arch in self.tags:
+            wheel_metadata.append('Tag: %s-%s-%s' % (pyver, abi, arch))
+        p = os.path.join(distinfo, 'WHEEL')
+        with open(p, 'w') as f:
+            f.write('\n'.join(wheel_metadata))
+        ap = to_posix(os.path.join(info_dir, 'WHEEL'))
+        archive_paths.append((ap, p))
+
+        # sort the entries by archive path. Not needed by any spec, but it
+        # keeps the archive listing and RECORD tidier than they would otherwise
+        # be. Use the number of path segments to keep directory entries together,
+        # and keep the dist-info stuff at the end.
+        def sorter(t):
+            ap = t[0]
+            n = ap.count('/')
+            if '.dist-info' in ap:
+                n += 10000
+            return (n, ap)
+        archive_paths = sorted(archive_paths, key=sorter)
+
+        # Now, at last, RECORD.
+        # Paths in here are archive paths - nothing else makes sense.
+        self.write_records((distinfo, info_dir), libdir, archive_paths)
+        # Now, ready to build the zip file
+        pathname = os.path.join(self.dirname, self.filename)
+        self.build_zip(pathname, archive_paths)
+        return pathname
+
+    def skip_entry(self, arcname):
+        """
+        Determine whether an archive entry should be skipped when verifying
+        or installing.
+        """
+        # The signature file won't be in RECORD,
+        # and we  don't currently don't do anything with it
+        # We also skip directories, as they won't be in RECORD
+        # either. See:
+        #
+        # https://github.com/pypa/wheel/issues/294
+        # https://github.com/pypa/wheel/issues/287
+        # https://github.com/pypa/wheel/pull/289
+        #
+        return arcname.endswith(('/', '/RECORD.jws'))
+
+    def install(self, paths, maker, **kwargs):
+        """
+        Install a wheel to the specified paths. If kwarg ``warner`` is
+        specified, it should be a callable, which will be called with two
+        tuples indicating the wheel version of this software and the wheel
+        version in the file, if there is a discrepancy in the versions.
+        This can be used to issue any warnings to raise any exceptions.
+        If kwarg ``lib_only`` is True, only the purelib/platlib files are
+        installed, and the headers, scripts, data and dist-info metadata are
+        not written. If kwarg ``bytecode_hashed_invalidation`` is True, written
+        bytecode will try to use file-hash based invalidation (PEP-552) on
+        supported interpreter versions (CPython 2.7+).
+
+        The return value is a :class:`InstalledDistribution` instance unless
+        ``options.lib_only`` is True, in which case the return value is ``None``.
+        """
+
+        dry_run = maker.dry_run
+        warner = kwargs.get('warner')
+        lib_only = kwargs.get('lib_only', False)
+        bc_hashed_invalidation = kwargs.get('bytecode_hashed_invalidation', False)
+
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        data_dir = '%s.data' % name_ver
+        info_dir = '%s.dist-info' % name_ver
+
+        metadata_name = posixpath.join(info_dir, LEGACY_METADATA_FILENAME)
+        wheel_metadata_name = posixpath.join(info_dir, 'WHEEL')
+        record_name = posixpath.join(info_dir, 'RECORD')
+
+        wrapper = codecs.getreader('utf-8')
+
+        with ZipFile(pathname, 'r') as zf:
+            with zf.open(wheel_metadata_name) as bwf:
+                wf = wrapper(bwf)
+                message = message_from_file(wf)
+            wv = message['Wheel-Version'].split('.', 1)
+            file_version = tuple([int(i) for i in wv])
+            if (file_version != self.wheel_version) and warner:
+                warner(self.wheel_version, file_version)
+
+            if message['Root-Is-Purelib'] == 'true':
+                libdir = paths['purelib']
+            else:
+                libdir = paths['platlib']
+
+            records = {}
+            with zf.open(record_name) as bf:
+                with CSVReader(stream=bf) as reader:
+                    for row in reader:
+                        p = row[0]
+                        records[p] = row
+
+            data_pfx = posixpath.join(data_dir, '')
+            info_pfx = posixpath.join(info_dir, '')
+            script_pfx = posixpath.join(data_dir, 'scripts', '')
+
+            # make a new instance rather than a copy of maker's,
+            # as we mutate it
+            fileop = FileOperator(dry_run=dry_run)
+            fileop.record = True    # so we can rollback if needed
+
+            bc = not sys.dont_write_bytecode    # Double negatives. Lovely!
+
+            outfiles = []   # for RECORD writing
+
+            # for script copying/shebang processing
+            workdir = tempfile.mkdtemp()
+            # set target dir later
+            # we default add_launchers to False, as the
+            # Python Launcher should be used instead
+            maker.source_dir = workdir
+            maker.target_dir = None
+            try:
+                for zinfo in zf.infolist():
+                    arcname = zinfo.filename
+                    if isinstance(arcname, text_type):
+                        u_arcname = arcname
+                    else:
+                        u_arcname = arcname.decode('utf-8')
+                    if self.skip_entry(u_arcname):
+                        continue
+                    row = records[u_arcname]
+                    if row[2] and str(zinfo.file_size) != row[2]:
+                        raise DistlibException('size mismatch for '
+                                               '%s' % u_arcname)
+                    if row[1]:
+                        kind, value = row[1].split('=', 1)
+                        with zf.open(arcname) as bf:
+                            data = bf.read()
+                        _, digest = self.get_hash(data, kind)
+                        if digest != value:
+                            raise DistlibException('digest mismatch for '
+                                                   '%s' % arcname)
+
+                    if lib_only and u_arcname.startswith((info_pfx, data_pfx)):
+                        logger.debug('lib_only: skipping %s', u_arcname)
+                        continue
+                    is_script = (u_arcname.startswith(script_pfx)
+                                 and not u_arcname.endswith('.exe'))
+
+                    if u_arcname.startswith(data_pfx):
+                        _, where, rp = u_arcname.split('/', 2)
+                        outfile = os.path.join(paths[where], convert_path(rp))
+                    else:
+                        # meant for site-packages.
+                        if u_arcname in (wheel_metadata_name, record_name):
+                            continue
+                        outfile = os.path.join(libdir, convert_path(u_arcname))
+                    if not is_script:
+                        with zf.open(arcname) as bf:
+                            fileop.copy_stream(bf, outfile)
+                        # Issue #147: permission bits aren't preserved. Using
+                        # zf.extract(zinfo, libdir) should have worked, but didn't,
+                        # see https://www.thetopsites.net/article/53834422.shtml
+                        # So ... manually preserve permission bits as given in zinfo
+                        if os.name == 'posix':
+                            # just set the normal permission bits
+                            os.chmod(outfile, (zinfo.external_attr >> 16) & 0x1FF)
+                        outfiles.append(outfile)
+                        # Double check the digest of the written file
+                        if not dry_run and row[1]:
+                            with open(outfile, 'rb') as bf:
+                                data = bf.read()
+                                _, newdigest = self.get_hash(data, kind)
+                                if newdigest != digest:
+                                    raise DistlibException('digest mismatch '
+                                                           'on write for '
+                                                           '%s' % outfile)
+                        if bc and outfile.endswith('.py'):
+                            try:
+                                pyc = fileop.byte_compile(outfile,
+                                                          hashed_invalidation=bc_hashed_invalidation)
+                                outfiles.append(pyc)
+                            except Exception:
+                                # Don't give up if byte-compilation fails,
+                                # but log it and perhaps warn the user
+                                logger.warning('Byte-compilation failed',
+                                               exc_info=True)
+                    else:
+                        fn = os.path.basename(convert_path(arcname))
+                        workname = os.path.join(workdir, fn)
+                        with zf.open(arcname) as bf:
+                            fileop.copy_stream(bf, workname)
+
+                        dn, fn = os.path.split(outfile)
+                        maker.target_dir = dn
+                        filenames = maker.make(fn)
+                        fileop.set_executable_mode(filenames)
+                        outfiles.extend(filenames)
+
+                if lib_only:
+                    logger.debug('lib_only: returning None')
+                    dist = None
+                else:
+                    # Generate scripts
+
+                    # Try to get pydist.json so we can see if there are
+                    # any commands to generate. If this fails (e.g. because
+                    # of a legacy wheel), log a warning but don't give up.
+                    commands = None
+                    file_version = self.info['Wheel-Version']
+                    if file_version == '1.0':
+                        # Use legacy info
+                        ep = posixpath.join(info_dir, 'entry_points.txt')
+                        try:
+                            with zf.open(ep) as bwf:
+                                epdata = read_exports(bwf)
+                            commands = {}
+                            for key in ('console', 'gui'):
+                                k = '%s_scripts' % key
+                                if k in epdata:
+                                    commands['wrap_%s' % key] = d = {}
+                                    for v in epdata[k].values():
+                                        s = '%s:%s' % (v.prefix, v.suffix)
+                                        if v.flags:
+                                            s += ' [%s]' % ','.join(v.flags)
+                                        d[v.name] = s
+                        except Exception:
+                            logger.warning('Unable to read legacy script '
+                                           'metadata, so cannot generate '
+                                           'scripts')
+                    else:
+                        try:
+                            with zf.open(metadata_name) as bwf:
+                                wf = wrapper(bwf)
+                                commands = json.load(wf).get('extensions')
+                                if commands:
+                                    commands = commands.get('python.commands')
+                        except Exception:
+                            logger.warning('Unable to read JSON metadata, so '
+                                           'cannot generate scripts')
+                    if commands:
+                        console_scripts = commands.get('wrap_console', {})
+                        gui_scripts = commands.get('wrap_gui', {})
+                        if console_scripts or gui_scripts:
+                            script_dir = paths.get('scripts', '')
+                            if not os.path.isdir(script_dir):
+                                raise ValueError('Valid script path not '
+                                                 'specified')
+                            maker.target_dir = script_dir
+                            for k, v in console_scripts.items():
+                                script = '%s = %s' % (k, v)
+                                filenames = maker.make(script)
+                                fileop.set_executable_mode(filenames)
+
+                            if gui_scripts:
+                                options = {'gui': True }
+                                for k, v in gui_scripts.items():
+                                    script = '%s = %s' % (k, v)
+                                    filenames = maker.make(script, options)
+                                    fileop.set_executable_mode(filenames)
+
+                    p = os.path.join(libdir, info_dir)
+                    dist = InstalledDistribution(p)
+
+                    # Write SHARED
+                    paths = dict(paths)     # don't change passed in dict
+                    del paths['purelib']
+                    del paths['platlib']
+                    paths['lib'] = libdir
+                    p = dist.write_shared_locations(paths, dry_run)
+                    if p:
+                        outfiles.append(p)
+
+                    # Write RECORD
+                    dist.write_installed_files(outfiles, paths['prefix'],
+                                               dry_run)
+                return dist
+            except Exception:  # pragma: no cover
+                logger.exception('installation failed.')
+                fileop.rollback()
+                raise
+            finally:
+                shutil.rmtree(workdir)
+
+    def _get_dylib_cache(self):
+        global cache
+        if cache is None:
+            # Use native string to avoid issues on 2.x: see Python #20140.
+            base = os.path.join(get_cache_base(), str('dylib-cache'),
+                                '%s.%s' % sys.version_info[:2])
+            cache = Cache(base)
+        return cache
+
+    def _get_extensions(self):
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        info_dir = '%s.dist-info' % name_ver
+        arcname = posixpath.join(info_dir, 'EXTENSIONS')
+        wrapper = codecs.getreader('utf-8')
+        result = []
+        with ZipFile(pathname, 'r') as zf:
+            try:
+                with zf.open(arcname) as bf:
+                    wf = wrapper(bf)
+                    extensions = json.load(wf)
+                    cache = self._get_dylib_cache()
+                    prefix = cache.prefix_to_dir(pathname)
+                    cache_base = os.path.join(cache.base, prefix)
+                    if not os.path.isdir(cache_base):
+                        os.makedirs(cache_base)
+                    for name, relpath in extensions.items():
+                        dest = os.path.join(cache_base, convert_path(relpath))
+                        if not os.path.exists(dest):
+                            extract = True
+                        else:
+                            file_time = os.stat(dest).st_mtime
+                            file_time = datetime.datetime.fromtimestamp(file_time)
+                            info = zf.getinfo(relpath)
+                            wheel_time = datetime.datetime(*info.date_time)
+                            extract = wheel_time > file_time
+                        if extract:
+                            zf.extract(relpath, cache_base)
+                        result.append((name, dest))
+            except KeyError:
+                pass
+        return result
+
+    def is_compatible(self):
+        """
+        Determine if a wheel is compatible with the running system.
+        """
+        return is_compatible(self)
+
+    def is_mountable(self):
+        """
+        Determine if a wheel is asserted as mountable by its metadata.
+        """
+        return True # for now - metadata details TBD
+
+    def mount(self, append=False):
+        pathname = os.path.abspath(os.path.join(self.dirname, self.filename))
+        if not self.is_compatible():
+            msg = 'Wheel %s not compatible with this Python.' % pathname
+            raise DistlibException(msg)
+        if not self.is_mountable():
+            msg = 'Wheel %s is marked as not mountable.' % pathname
+            raise DistlibException(msg)
+        if pathname in sys.path:
+            logger.debug('%s already in path', pathname)
+        else:
+            if append:
+                sys.path.append(pathname)
+            else:
+                sys.path.insert(0, pathname)
+            extensions = self._get_extensions()
+            if extensions:
+                if _hook not in sys.meta_path:
+                    sys.meta_path.append(_hook)
+                _hook.add(pathname, extensions)
+
+    def unmount(self):
+        pathname = os.path.abspath(os.path.join(self.dirname, self.filename))
+        if pathname not in sys.path:
+            logger.debug('%s not in path', pathname)
+        else:
+            sys.path.remove(pathname)
+            if pathname in _hook.impure_wheels:
+                _hook.remove(pathname)
+            if not _hook.impure_wheels:
+                if _hook in sys.meta_path:
+                    sys.meta_path.remove(_hook)
+
+    def verify(self):
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        data_dir = '%s.data' % name_ver
+        info_dir = '%s.dist-info' % name_ver
+
+        metadata_name = posixpath.join(info_dir, LEGACY_METADATA_FILENAME)
+        wheel_metadata_name = posixpath.join(info_dir, 'WHEEL')
+        record_name = posixpath.join(info_dir, 'RECORD')
+
+        wrapper = codecs.getreader('utf-8')
+
+        with ZipFile(pathname, 'r') as zf:
+            with zf.open(wheel_metadata_name) as bwf:
+                wf = wrapper(bwf)
+                message = message_from_file(wf)
+            wv = message['Wheel-Version'].split('.', 1)
+            file_version = tuple([int(i) for i in wv])
+            # TODO version verification
+
+            records = {}
+            with zf.open(record_name) as bf:
+                with CSVReader(stream=bf) as reader:
+                    for row in reader:
+                        p = row[0]
+                        records[p] = row
+
+            for zinfo in zf.infolist():
+                arcname = zinfo.filename
+                if isinstance(arcname, text_type):
+                    u_arcname = arcname
+                else:
+                    u_arcname = arcname.decode('utf-8')
+                # See issue #115: some wheels have .. in their entries, but
+                # in the filename ... e.g. __main__..py ! So the check is
+                # updated to look for .. in the directory portions
+                p = u_arcname.split('/')
+                if '..' in p:
+                    raise DistlibException('invalid entry in '
+                                           'wheel: %r' % u_arcname)
+
+                if self.skip_entry(u_arcname):
+                    continue
+                row = records[u_arcname]
+                if row[2] and str(zinfo.file_size) != row[2]:
+                    raise DistlibException('size mismatch for '
+                                           '%s' % u_arcname)
+                if row[1]:
+                    kind, value = row[1].split('=', 1)
+                    with zf.open(arcname) as bf:
+                        data = bf.read()
+                    _, digest = self.get_hash(data, kind)
+                    if digest != value:
+                        raise DistlibException('digest mismatch for '
+                                               '%s' % arcname)
+
+    def update(self, modifier, dest_dir=None, **kwargs):
+        """
+        Update the contents of a wheel in a generic way. The modifier should
+        be a callable which expects a dictionary argument: its keys are
+        archive-entry paths, and its values are absolute filesystem paths
+        where the contents the corresponding archive entries can be found. The
+        modifier is free to change the contents of the files pointed to, add
+        new entries and remove entries, before returning. This method will
+        extract the entire contents of the wheel to a temporary location, call
+        the modifier, and then use the passed (and possibly updated)
+        dictionary to write a new wheel. If ``dest_dir`` is specified, the new
+        wheel is written there -- otherwise, the original wheel is overwritten.
+
+        The modifier should return True if it updated the wheel, else False.
+        This method returns the same value the modifier returns.
+        """
+
+        def get_version(path_map, info_dir):
+            version = path = None
+            key = '%s/%s' % (info_dir, LEGACY_METADATA_FILENAME)
+            if key not in path_map:
+                key = '%s/PKG-INFO' % info_dir
+            if key in path_map:
+                path = path_map[key]
+                version = Metadata(path=path).version
+            return version, path
+
+        def update_version(version, path):
+            updated = None
+            try:
+                v = NormalizedVersion(version)
+                i = version.find('-')
+                if i < 0:
+                    updated = '%s+1' % version
+                else:
+                    parts = [int(s) for s in version[i + 1:].split('.')]
+                    parts[-1] += 1
+                    updated = '%s+%s' % (version[:i],
+                                         '.'.join(str(i) for i in parts))
+            except UnsupportedVersionError:
+                logger.debug('Cannot update non-compliant (PEP-440) '
+                             'version %r', version)
+            if updated:
+                md = Metadata(path=path)
+                md.version = updated
+                legacy = path.endswith(LEGACY_METADATA_FILENAME)
+                md.write(path=path, legacy=legacy)
+                logger.debug('Version updated from %r to %r', version,
+                             updated)
+
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        info_dir = '%s.dist-info' % name_ver
+        record_name = posixpath.join(info_dir, 'RECORD')
+        with tempdir() as workdir:
+            with ZipFile(pathname, 'r') as zf:
+                path_map = {}
+                for zinfo in zf.infolist():
+                    arcname = zinfo.filename
+                    if isinstance(arcname, text_type):
+                        u_arcname = arcname
+                    else:
+                        u_arcname = arcname.decode('utf-8')
+                    if u_arcname == record_name:
+                        continue
+                    if '..' in u_arcname:
+                        raise DistlibException('invalid entry in '
+                                               'wheel: %r' % u_arcname)
+                    zf.extract(zinfo, workdir)
+                    path = os.path.join(workdir, convert_path(u_arcname))
+                    path_map[u_arcname] = path
+
+            # Remember the version.
+            original_version, _ = get_version(path_map, info_dir)
+            # Files extracted. Call the modifier.
+            modified = modifier(path_map, **kwargs)
+            if modified:
+                # Something changed - need to build a new wheel.
+                current_version, path = get_version(path_map, info_dir)
+                if current_version and (current_version == original_version):
+                    # Add or update local version to signify changes.
+                    update_version(current_version, path)
+                # Decide where the new wheel goes.
+                if dest_dir is None:
+                    fd, newpath = tempfile.mkstemp(suffix='.whl',
+                                                   prefix='wheel-update-',
+                                                   dir=workdir)
+                    os.close(fd)
+                else:
+                    if not os.path.isdir(dest_dir):
+                        raise DistlibException('Not a directory: %r' % dest_dir)
+                    newpath = os.path.join(dest_dir, self.filename)
+                archive_paths = list(path_map.items())
+                distinfo = os.path.join(workdir, info_dir)
+                info = distinfo, info_dir
+                self.write_records(info, workdir, archive_paths)
+                self.build_zip(newpath, archive_paths)
+                if dest_dir is None:
+                    shutil.copyfile(newpath, pathname)
+        return modified
+
+def _get_glibc_version():
+    import platform
+    ver = platform.libc_ver()
+    result = []
+    if ver[0] == 'glibc':
+        for s in ver[1].split('.'):
+            result.append(int(s) if s.isdigit() else 0)
+        result = tuple(result)
+    return result
+
+def compatible_tags():
+    """
+    Return (pyver, abi, arch) tuples compatible with this Python.
+    """
+    versions = [VER_SUFFIX]
+    major = VER_SUFFIX[0]
+    for minor in range(sys.version_info[1] - 1, - 1, -1):
+        versions.append(''.join([major, str(minor)]))
+
+    abis = []
+    for suffix, _, _ in imp.get_suffixes():
+        if suffix.startswith('.abi'):
+            abis.append(suffix.split('.', 2)[1])
+    abis.sort()
+    if ABI != 'none':
+        abis.insert(0, ABI)
+    abis.append('none')
+    result = []
+
+    arches = [ARCH]
+    if sys.platform == 'darwin':
+        m = re.match(r'(\w+)_(\d+)_(\d+)_(\w+)$', ARCH)
+        if m:
+            name, major, minor, arch = m.groups()
+            minor = int(minor)
+            matches = [arch]
+            if arch in ('i386', 'ppc'):
+                matches.append('fat')
+            if arch in ('i386', 'ppc', 'x86_64'):
+                matches.append('fat3')
+            if arch in ('ppc64', 'x86_64'):
+                matches.append('fat64')
+            if arch in ('i386', 'x86_64'):
+                matches.append('intel')
+            if arch in ('i386', 'x86_64', 'intel', 'ppc', 'ppc64'):
+                matches.append('universal')
+            while minor >= 0:
+                for match in matches:
+                    s = '%s_%s_%s_%s' % (name, major, minor, match)
+                    if s != ARCH:   # already there
+                        arches.append(s)
+                minor -= 1
+
+    # Most specific - our Python version, ABI and arch
+    for abi in abis:
+        for arch in arches:
+            result.append((''.join((IMP_PREFIX, versions[0])), abi, arch))
+            # manylinux
+            if abi != 'none' and sys.platform.startswith('linux'):
+                arch = arch.replace('linux_', '')
+                parts = _get_glibc_version()
+                if len(parts) == 2:
+                    if parts >= (2, 5):
+                        result.append((''.join((IMP_PREFIX, versions[0])), abi,
+                                       'manylinux1_%s' % arch))
+                    if parts >= (2, 12):
+                        result.append((''.join((IMP_PREFIX, versions[0])), abi,
+                                       'manylinux2010_%s' % arch))
+                    if parts >= (2, 17):
+                        result.append((''.join((IMP_PREFIX, versions[0])), abi,
+                                       'manylinux2014_%s' % arch))
+                    result.append((''.join((IMP_PREFIX, versions[0])), abi,
+                                   'manylinux_%s_%s_%s' % (parts[0], parts[1],
+                                                           arch)))
+
+    # where no ABI / arch dependency, but IMP_PREFIX dependency
+    for i, version in enumerate(versions):
+        result.append((''.join((IMP_PREFIX, version)), 'none', 'any'))
+        if i == 0:
+            result.append((''.join((IMP_PREFIX, version[0])), 'none', 'any'))
+
+    # no IMP_PREFIX, ABI or arch dependency
+    for i, version in enumerate(versions):
+        result.append((''.join(('py', version)), 'none', 'any'))
+        if i == 0:
+            result.append((''.join(('py', version[0])), 'none', 'any'))
+
+    return set(result)
+
+
+COMPATIBLE_TAGS = compatible_tags()
+
+del compatible_tags
+
+
+def is_compatible(wheel, tags=None):
+    if not isinstance(wheel, Wheel):
+        wheel = Wheel(wheel)    # assume it's a filename
+    result = False
+    if tags is None:
+        tags = COMPATIBLE_TAGS
+    for ver, abi, arch in tags:
+        if ver in wheel.pyver and abi in wheel.abi and arch in wheel.arch:
+            result = True
+            break
+    return result
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/distro.py b/utils/python-venv/Lib/site-packages/pip/_vendor/distro.py
new file mode 100644
index 0000000..7892741
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/distro.py
@@ -0,0 +1,1386 @@
+# Copyright 2015,2016,2017 Nir Cohen
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+The ``distro`` package (``distro`` stands for Linux Distribution) provides
+information about the Linux distribution it runs on, such as a reliable
+machine-readable distro ID, or version information.
+
+It is the recommended replacement for Python's original
+:py:func:`platform.linux_distribution` function, but it provides much more
+functionality. An alternative implementation became necessary because Python
+3.5 deprecated this function, and Python 3.8 removed it altogether. Its
+predecessor function :py:func:`platform.dist` was already deprecated since
+Python 2.6 and removed in Python 3.8. Still, there are many cases in which
+access to OS distribution information is needed. See `Python issue 1322
+`_ for more information.
+"""
+
+import argparse
+import json
+import logging
+import os
+import re
+import shlex
+import subprocess
+import sys
+import warnings
+
+__version__ = "1.6.0"
+
+# Use `if False` to avoid an ImportError on Python 2. After dropping Python 2
+# support, can use typing.TYPE_CHECKING instead. See:
+# https://docs.python.org/3/library/typing.html#typing.TYPE_CHECKING
+if False:  # pragma: nocover
+    from typing import (
+        Any,
+        Callable,
+        Dict,
+        Iterable,
+        Optional,
+        Sequence,
+        TextIO,
+        Tuple,
+        Type,
+        TypedDict,
+        Union,
+    )
+
+    VersionDict = TypedDict(
+        "VersionDict", {"major": str, "minor": str, "build_number": str}
+    )
+    InfoDict = TypedDict(
+        "InfoDict",
+        {
+            "id": str,
+            "version": str,
+            "version_parts": VersionDict,
+            "like": str,
+            "codename": str,
+        },
+    )
+
+
+_UNIXCONFDIR = os.environ.get("UNIXCONFDIR", "/etc")
+_UNIXUSRLIBDIR = os.environ.get("UNIXUSRLIBDIR", "/usr/lib")
+_OS_RELEASE_BASENAME = "os-release"
+
+#: Translation table for normalizing the "ID" attribute defined in os-release
+#: files, for use by the :func:`distro.id` method.
+#:
+#: * Key: Value as defined in the os-release file, translated to lower case,
+#:   with blanks translated to underscores.
+#:
+#: * Value: Normalized value.
+NORMALIZED_OS_ID = {
+    "ol": "oracle",  # Oracle Linux
+}
+
+#: Translation table for normalizing the "Distributor ID" attribute returned by
+#: the lsb_release command, for use by the :func:`distro.id` method.
+#:
+#: * Key: Value as returned by the lsb_release command, translated to lower
+#:   case, with blanks translated to underscores.
+#:
+#: * Value: Normalized value.
+NORMALIZED_LSB_ID = {
+    "enterpriseenterpriseas": "oracle",  # Oracle Enterprise Linux 4
+    "enterpriseenterpriseserver": "oracle",  # Oracle Linux 5
+    "redhatenterpriseworkstation": "rhel",  # RHEL 6, 7 Workstation
+    "redhatenterpriseserver": "rhel",  # RHEL 6, 7 Server
+    "redhatenterprisecomputenode": "rhel",  # RHEL 6 ComputeNode
+}
+
+#: Translation table for normalizing the distro ID derived from the file name
+#: of distro release files, for use by the :func:`distro.id` method.
+#:
+#: * Key: Value as derived from the file name of a distro release file,
+#:   translated to lower case, with blanks translated to underscores.
+#:
+#: * Value: Normalized value.
+NORMALIZED_DISTRO_ID = {
+    "redhat": "rhel",  # RHEL 6.x, 7.x
+}
+
+# Pattern for content of distro release file (reversed)
+_DISTRO_RELEASE_CONTENT_REVERSED_PATTERN = re.compile(
+    r"(?:[^)]*\)(.*)\()? *(?:STL )?([\d.+\-a-z]*\d) *(?:esaeler *)?(.+)"
+)
+
+# Pattern for base file name of distro release file
+_DISTRO_RELEASE_BASENAME_PATTERN = re.compile(r"(\w+)[-_](release|version)$")
+
+# Base file names to be ignored when searching for distro release file
+_DISTRO_RELEASE_IGNORE_BASENAMES = (
+    "debian_version",
+    "lsb-release",
+    "oem-release",
+    _OS_RELEASE_BASENAME,
+    "system-release",
+    "plesk-release",
+    "iredmail-release",
+)
+
+
+def linux_distribution(full_distribution_name=True):
+    # type: (bool) -> Tuple[str, str, str]
+    """
+    .. deprecated:: 1.6.0
+
+        :func:`distro.linux_distribution()` is deprecated. It should only be
+        used as a compatibility shim with Python's
+        :py:func:`platform.linux_distribution()`. Please use :func:`distro.id`,
+        :func:`distro.version` and :func:`distro.name` instead.
+
+    Return information about the current OS distribution as a tuple
+    ``(id_name, version, codename)`` with items as follows:
+
+    * ``id_name``:  If *full_distribution_name* is false, the result of
+      :func:`distro.id`. Otherwise, the result of :func:`distro.name`.
+
+    * ``version``:  The result of :func:`distro.version`.
+
+    * ``codename``:  The result of :func:`distro.codename`.
+
+    The interface of this function is compatible with the original
+    :py:func:`platform.linux_distribution` function, supporting a subset of
+    its parameters.
+
+    The data it returns may not exactly be the same, because it uses more data
+    sources than the original function, and that may lead to different data if
+    the OS distribution is not consistent across multiple data sources it
+    provides (there are indeed such distributions ...).
+
+    Another reason for differences is the fact that the :func:`distro.id`
+    method normalizes the distro ID string to a reliable machine-readable value
+    for a number of popular OS distributions.
+    """
+    warnings.warn(
+        "distro.linux_distribution() is deprecated. It should only be used as a "
+        "compatibility shim with Python's platform.linux_distribution(). Please use "
+        "distro.id(), distro.version() and distro.name() instead.",
+        DeprecationWarning,
+        stacklevel=2,
+    )
+    return _distro.linux_distribution(full_distribution_name)
+
+
+def id():
+    # type: () -> str
+    """
+    Return the distro ID of the current distribution, as a
+    machine-readable string.
+
+    For a number of OS distributions, the returned distro ID value is
+    *reliable*, in the sense that it is documented and that it does not change
+    across releases of the distribution.
+
+    This package maintains the following reliable distro ID values:
+
+    ==============  =========================================
+    Distro ID       Distribution
+    ==============  =========================================
+    "ubuntu"        Ubuntu
+    "debian"        Debian
+    "rhel"          RedHat Enterprise Linux
+    "centos"        CentOS
+    "fedora"        Fedora
+    "sles"          SUSE Linux Enterprise Server
+    "opensuse"      openSUSE
+    "amazon"        Amazon Linux
+    "arch"          Arch Linux
+    "cloudlinux"    CloudLinux OS
+    "exherbo"       Exherbo Linux
+    "gentoo"        GenToo Linux
+    "ibm_powerkvm"  IBM PowerKVM
+    "kvmibm"        KVM for IBM z Systems
+    "linuxmint"     Linux Mint
+    "mageia"        Mageia
+    "mandriva"      Mandriva Linux
+    "parallels"     Parallels
+    "pidora"        Pidora
+    "raspbian"      Raspbian
+    "oracle"        Oracle Linux (and Oracle Enterprise Linux)
+    "scientific"    Scientific Linux
+    "slackware"     Slackware
+    "xenserver"     XenServer
+    "openbsd"       OpenBSD
+    "netbsd"        NetBSD
+    "freebsd"       FreeBSD
+    "midnightbsd"   MidnightBSD
+    ==============  =========================================
+
+    If you have a need to get distros for reliable IDs added into this set,
+    or if you find that the :func:`distro.id` function returns a different
+    distro ID for one of the listed distros, please create an issue in the
+    `distro issue tracker`_.
+
+    **Lookup hierarchy and transformations:**
+
+    First, the ID is obtained from the following sources, in the specified
+    order. The first available and non-empty value is used:
+
+    * the value of the "ID" attribute of the os-release file,
+
+    * the value of the "Distributor ID" attribute returned by the lsb_release
+      command,
+
+    * the first part of the file name of the distro release file,
+
+    The so determined ID value then passes the following transformations,
+    before it is returned by this method:
+
+    * it is translated to lower case,
+
+    * blanks (which should not be there anyway) are translated to underscores,
+
+    * a normalization of the ID is performed, based upon
+      `normalization tables`_. The purpose of this normalization is to ensure
+      that the ID is as reliable as possible, even across incompatible changes
+      in the OS distributions. A common reason for an incompatible change is
+      the addition of an os-release file, or the addition of the lsb_release
+      command, with ID values that differ from what was previously determined
+      from the distro release file name.
+    """
+    return _distro.id()
+
+
+def name(pretty=False):
+    # type: (bool) -> str
+    """
+    Return the name of the current OS distribution, as a human-readable
+    string.
+
+    If *pretty* is false, the name is returned without version or codename.
+    (e.g. "CentOS Linux")
+
+    If *pretty* is true, the version and codename are appended.
+    (e.g. "CentOS Linux 7.1.1503 (Core)")
+
+    **Lookup hierarchy:**
+
+    The name is obtained from the following sources, in the specified order.
+    The first available and non-empty value is used:
+
+    * If *pretty* is false:
+
+      - the value of the "NAME" attribute of the os-release file,
+
+      - the value of the "Distributor ID" attribute returned by the lsb_release
+        command,
+
+      - the value of the "" field of the distro release file.
+
+    * If *pretty* is true:
+
+      - the value of the "PRETTY_NAME" attribute of the os-release file,
+
+      - the value of the "Description" attribute returned by the lsb_release
+        command,
+
+      - the value of the "" field of the distro release file, appended
+        with the value of the pretty version ("" and ""
+        fields) of the distro release file, if available.
+    """
+    return _distro.name(pretty)
+
+
+def version(pretty=False, best=False):
+    # type: (bool, bool) -> str
+    """
+    Return the version of the current OS distribution, as a human-readable
+    string.
+
+    If *pretty* is false, the version is returned without codename (e.g.
+    "7.0").
+
+    If *pretty* is true, the codename in parenthesis is appended, if the
+    codename is non-empty (e.g. "7.0 (Maipo)").
+
+    Some distributions provide version numbers with different precisions in
+    the different sources of distribution information. Examining the different
+    sources in a fixed priority order does not always yield the most precise
+    version (e.g. for Debian 8.2, or CentOS 7.1).
+
+    The *best* parameter can be used to control the approach for the returned
+    version:
+
+    If *best* is false, the first non-empty version number in priority order of
+    the examined sources is returned.
+
+    If *best* is true, the most precise version number out of all examined
+    sources is returned.
+
+    **Lookup hierarchy:**
+
+    In all cases, the version number is obtained from the following sources.
+    If *best* is false, this order represents the priority order:
+
+    * the value of the "VERSION_ID" attribute of the os-release file,
+    * the value of the "Release" attribute returned by the lsb_release
+      command,
+    * the version number parsed from the "" field of the first line
+      of the distro release file,
+    * the version number parsed from the "PRETTY_NAME" attribute of the
+      os-release file, if it follows the format of the distro release files.
+    * the version number parsed from the "Description" attribute returned by
+      the lsb_release command, if it follows the format of the distro release
+      files.
+    """
+    return _distro.version(pretty, best)
+
+
+def version_parts(best=False):
+    # type: (bool) -> Tuple[str, str, str]
+    """
+    Return the version of the current OS distribution as a tuple
+    ``(major, minor, build_number)`` with items as follows:
+
+    * ``major``:  The result of :func:`distro.major_version`.
+
+    * ``minor``:  The result of :func:`distro.minor_version`.
+
+    * ``build_number``:  The result of :func:`distro.build_number`.
+
+    For a description of the *best* parameter, see the :func:`distro.version`
+    method.
+    """
+    return _distro.version_parts(best)
+
+
+def major_version(best=False):
+    # type: (bool) -> str
+    """
+    Return the major version of the current OS distribution, as a string,
+    if provided.
+    Otherwise, the empty string is returned. The major version is the first
+    part of the dot-separated version string.
+
+    For a description of the *best* parameter, see the :func:`distro.version`
+    method.
+    """
+    return _distro.major_version(best)
+
+
+def minor_version(best=False):
+    # type: (bool) -> str
+    """
+    Return the minor version of the current OS distribution, as a string,
+    if provided.
+    Otherwise, the empty string is returned. The minor version is the second
+    part of the dot-separated version string.
+
+    For a description of the *best* parameter, see the :func:`distro.version`
+    method.
+    """
+    return _distro.minor_version(best)
+
+
+def build_number(best=False):
+    # type: (bool) -> str
+    """
+    Return the build number of the current OS distribution, as a string,
+    if provided.
+    Otherwise, the empty string is returned. The build number is the third part
+    of the dot-separated version string.
+
+    For a description of the *best* parameter, see the :func:`distro.version`
+    method.
+    """
+    return _distro.build_number(best)
+
+
+def like():
+    # type: () -> str
+    """
+    Return a space-separated list of distro IDs of distributions that are
+    closely related to the current OS distribution in regards to packaging
+    and programming interfaces, for example distributions the current
+    distribution is a derivative from.
+
+    **Lookup hierarchy:**
+
+    This information item is only provided by the os-release file.
+    For details, see the description of the "ID_LIKE" attribute in the
+    `os-release man page
+    `_.
+    """
+    return _distro.like()
+
+
+def codename():
+    # type: () -> str
+    """
+    Return the codename for the release of the current OS distribution,
+    as a string.
+
+    If the distribution does not have a codename, an empty string is returned.
+
+    Note that the returned codename is not always really a codename. For
+    example, openSUSE returns "x86_64". This function does not handle such
+    cases in any special way and just returns the string it finds, if any.
+
+    **Lookup hierarchy:**
+
+    * the codename within the "VERSION" attribute of the os-release file, if
+      provided,
+
+    * the value of the "Codename" attribute returned by the lsb_release
+      command,
+
+    * the value of the "" field of the distro release file.
+    """
+    return _distro.codename()
+
+
+def info(pretty=False, best=False):
+    # type: (bool, bool) -> InfoDict
+    """
+    Return certain machine-readable information items about the current OS
+    distribution in a dictionary, as shown in the following example:
+
+    .. sourcecode:: python
+
+        {
+            'id': 'rhel',
+            'version': '7.0',
+            'version_parts': {
+                'major': '7',
+                'minor': '0',
+                'build_number': ''
+            },
+            'like': 'fedora',
+            'codename': 'Maipo'
+        }
+
+    The dictionary structure and keys are always the same, regardless of which
+    information items are available in the underlying data sources. The values
+    for the various keys are as follows:
+
+    * ``id``:  The result of :func:`distro.id`.
+
+    * ``version``:  The result of :func:`distro.version`.
+
+    * ``version_parts -> major``:  The result of :func:`distro.major_version`.
+
+    * ``version_parts -> minor``:  The result of :func:`distro.minor_version`.
+
+    * ``version_parts -> build_number``:  The result of
+      :func:`distro.build_number`.
+
+    * ``like``:  The result of :func:`distro.like`.
+
+    * ``codename``:  The result of :func:`distro.codename`.
+
+    For a description of the *pretty* and *best* parameters, see the
+    :func:`distro.version` method.
+    """
+    return _distro.info(pretty, best)
+
+
+def os_release_info():
+    # type: () -> Dict[str, str]
+    """
+    Return a dictionary containing key-value pairs for the information items
+    from the os-release file data source of the current OS distribution.
+
+    See `os-release file`_ for details about these information items.
+    """
+    return _distro.os_release_info()
+
+
+def lsb_release_info():
+    # type: () -> Dict[str, str]
+    """
+    Return a dictionary containing key-value pairs for the information items
+    from the lsb_release command data source of the current OS distribution.
+
+    See `lsb_release command output`_ for details about these information
+    items.
+    """
+    return _distro.lsb_release_info()
+
+
+def distro_release_info():
+    # type: () -> Dict[str, str]
+    """
+    Return a dictionary containing key-value pairs for the information items
+    from the distro release file data source of the current OS distribution.
+
+    See `distro release file`_ for details about these information items.
+    """
+    return _distro.distro_release_info()
+
+
+def uname_info():
+    # type: () -> Dict[str, str]
+    """
+    Return a dictionary containing key-value pairs for the information items
+    from the distro release file data source of the current OS distribution.
+    """
+    return _distro.uname_info()
+
+
+def os_release_attr(attribute):
+    # type: (str) -> str
+    """
+    Return a single named information item from the os-release file data source
+    of the current OS distribution.
+
+    Parameters:
+
+    * ``attribute`` (string): Key of the information item.
+
+    Returns:
+
+    * (string): Value of the information item, if the item exists.
+      The empty string, if the item does not exist.
+
+    See `os-release file`_ for details about these information items.
+    """
+    return _distro.os_release_attr(attribute)
+
+
+def lsb_release_attr(attribute):
+    # type: (str) -> str
+    """
+    Return a single named information item from the lsb_release command output
+    data source of the current OS distribution.
+
+    Parameters:
+
+    * ``attribute`` (string): Key of the information item.
+
+    Returns:
+
+    * (string): Value of the information item, if the item exists.
+      The empty string, if the item does not exist.
+
+    See `lsb_release command output`_ for details about these information
+    items.
+    """
+    return _distro.lsb_release_attr(attribute)
+
+
+def distro_release_attr(attribute):
+    # type: (str) -> str
+    """
+    Return a single named information item from the distro release file
+    data source of the current OS distribution.
+
+    Parameters:
+
+    * ``attribute`` (string): Key of the information item.
+
+    Returns:
+
+    * (string): Value of the information item, if the item exists.
+      The empty string, if the item does not exist.
+
+    See `distro release file`_ for details about these information items.
+    """
+    return _distro.distro_release_attr(attribute)
+
+
+def uname_attr(attribute):
+    # type: (str) -> str
+    """
+    Return a single named information item from the distro release file
+    data source of the current OS distribution.
+
+    Parameters:
+
+    * ``attribute`` (string): Key of the information item.
+
+    Returns:
+
+    * (string): Value of the information item, if the item exists.
+                The empty string, if the item does not exist.
+    """
+    return _distro.uname_attr(attribute)
+
+
+try:
+    from functools import cached_property
+except ImportError:
+    # Python < 3.8
+    class cached_property(object):  # type: ignore
+        """A version of @property which caches the value.  On access, it calls the
+        underlying function and sets the value in `__dict__` so future accesses
+        will not re-call the property.
+        """
+
+        def __init__(self, f):
+            # type: (Callable[[Any], Any]) -> None
+            self._fname = f.__name__
+            self._f = f
+
+        def __get__(self, obj, owner):
+            # type: (Any, Type[Any]) -> Any
+            assert obj is not None, "call {} on an instance".format(self._fname)
+            ret = obj.__dict__[self._fname] = self._f(obj)
+            return ret
+
+
+class LinuxDistribution(object):
+    """
+    Provides information about a OS distribution.
+
+    This package creates a private module-global instance of this class with
+    default initialization arguments, that is used by the
+    `consolidated accessor functions`_ and `single source accessor functions`_.
+    By using default initialization arguments, that module-global instance
+    returns data about the current OS distribution (i.e. the distro this
+    package runs on).
+
+    Normally, it is not necessary to create additional instances of this class.
+    However, in situations where control is needed over the exact data sources
+    that are used, instances of this class can be created with a specific
+    distro release file, or a specific os-release file, or without invoking the
+    lsb_release command.
+    """
+
+    def __init__(
+        self,
+        include_lsb=True,
+        os_release_file="",
+        distro_release_file="",
+        include_uname=True,
+        root_dir=None,
+    ):
+        # type: (bool, str, str, bool, Optional[str]) -> None
+        """
+        The initialization method of this class gathers information from the
+        available data sources, and stores that in private instance attributes.
+        Subsequent access to the information items uses these private instance
+        attributes, so that the data sources are read only once.
+
+        Parameters:
+
+        * ``include_lsb`` (bool): Controls whether the
+          `lsb_release command output`_ is included as a data source.
+
+          If the lsb_release command is not available in the program execution
+          path, the data source for the lsb_release command will be empty.
+
+        * ``os_release_file`` (string): The path name of the
+          `os-release file`_ that is to be used as a data source.
+
+          An empty string (the default) will cause the default path name to
+          be used (see `os-release file`_ for details).
+
+          If the specified or defaulted os-release file does not exist, the
+          data source for the os-release file will be empty.
+
+        * ``distro_release_file`` (string): The path name of the
+          `distro release file`_ that is to be used as a data source.
+
+          An empty string (the default) will cause a default search algorithm
+          to be used (see `distro release file`_ for details).
+
+          If the specified distro release file does not exist, or if no default
+          distro release file can be found, the data source for the distro
+          release file will be empty.
+
+        * ``include_uname`` (bool): Controls whether uname command output is
+          included as a data source. If the uname command is not available in
+          the program execution path the data source for the uname command will
+          be empty.
+
+        * ``root_dir`` (string): The absolute path to the root directory to use
+          to find distro-related information files.
+
+        Public instance attributes:
+
+        * ``os_release_file`` (string): The path name of the
+          `os-release file`_ that is actually used as a data source. The
+          empty string if no distro release file is used as a data source.
+
+        * ``distro_release_file`` (string): The path name of the
+          `distro release file`_ that is actually used as a data source. The
+          empty string if no distro release file is used as a data source.
+
+        * ``include_lsb`` (bool): The result of the ``include_lsb`` parameter.
+          This controls whether the lsb information will be loaded.
+
+        * ``include_uname`` (bool): The result of the ``include_uname``
+          parameter. This controls whether the uname information will
+          be loaded.
+
+        Raises:
+
+        * :py:exc:`IOError`: Some I/O issue with an os-release file or distro
+          release file.
+
+        * :py:exc:`subprocess.CalledProcessError`: The lsb_release command had
+          some issue (other than not being available in the program execution
+          path).
+
+        * :py:exc:`UnicodeError`: A data source has unexpected characters or
+          uses an unexpected encoding.
+        """
+        self.root_dir = root_dir
+        self.etc_dir = os.path.join(root_dir, "etc") if root_dir else _UNIXCONFDIR
+        self.usr_lib_dir = (
+            os.path.join(root_dir, "usr/lib") if root_dir else _UNIXUSRLIBDIR
+        )
+
+        if os_release_file:
+            self.os_release_file = os_release_file
+        else:
+            etc_dir_os_release_file = os.path.join(self.etc_dir, _OS_RELEASE_BASENAME)
+            usr_lib_os_release_file = os.path.join(
+                self.usr_lib_dir, _OS_RELEASE_BASENAME
+            )
+
+            # NOTE: The idea is to respect order **and** have it set
+            #       at all times for API backwards compatibility.
+            if os.path.isfile(etc_dir_os_release_file) or not os.path.isfile(
+                usr_lib_os_release_file
+            ):
+                self.os_release_file = etc_dir_os_release_file
+            else:
+                self.os_release_file = usr_lib_os_release_file
+
+        self.distro_release_file = distro_release_file or ""  # updated later
+        self.include_lsb = include_lsb
+        self.include_uname = include_uname
+
+    def __repr__(self):
+        # type: () -> str
+        """Return repr of all info"""
+        return (
+            "LinuxDistribution("
+            "os_release_file={self.os_release_file!r}, "
+            "distro_release_file={self.distro_release_file!r}, "
+            "include_lsb={self.include_lsb!r}, "
+            "include_uname={self.include_uname!r}, "
+            "_os_release_info={self._os_release_info!r}, "
+            "_lsb_release_info={self._lsb_release_info!r}, "
+            "_distro_release_info={self._distro_release_info!r}, "
+            "_uname_info={self._uname_info!r})".format(self=self)
+        )
+
+    def linux_distribution(self, full_distribution_name=True):
+        # type: (bool) -> Tuple[str, str, str]
+        """
+        Return information about the OS distribution that is compatible
+        with Python's :func:`platform.linux_distribution`, supporting a subset
+        of its parameters.
+
+        For details, see :func:`distro.linux_distribution`.
+        """
+        return (
+            self.name() if full_distribution_name else self.id(),
+            self.version(),
+            self.codename(),
+        )
+
+    def id(self):
+        # type: () -> str
+        """Return the distro ID of the OS distribution, as a string.
+
+        For details, see :func:`distro.id`.
+        """
+
+        def normalize(distro_id, table):
+            # type: (str, Dict[str, str]) -> str
+            distro_id = distro_id.lower().replace(" ", "_")
+            return table.get(distro_id, distro_id)
+
+        distro_id = self.os_release_attr("id")
+        if distro_id:
+            return normalize(distro_id, NORMALIZED_OS_ID)
+
+        distro_id = self.lsb_release_attr("distributor_id")
+        if distro_id:
+            return normalize(distro_id, NORMALIZED_LSB_ID)
+
+        distro_id = self.distro_release_attr("id")
+        if distro_id:
+            return normalize(distro_id, NORMALIZED_DISTRO_ID)
+
+        distro_id = self.uname_attr("id")
+        if distro_id:
+            return normalize(distro_id, NORMALIZED_DISTRO_ID)
+
+        return ""
+
+    def name(self, pretty=False):
+        # type: (bool) -> str
+        """
+        Return the name of the OS distribution, as a string.
+
+        For details, see :func:`distro.name`.
+        """
+        name = (
+            self.os_release_attr("name")
+            or self.lsb_release_attr("distributor_id")
+            or self.distro_release_attr("name")
+            or self.uname_attr("name")
+        )
+        if pretty:
+            name = self.os_release_attr("pretty_name") or self.lsb_release_attr(
+                "description"
+            )
+            if not name:
+                name = self.distro_release_attr("name") or self.uname_attr("name")
+                version = self.version(pretty=True)
+                if version:
+                    name = name + " " + version
+        return name or ""
+
+    def version(self, pretty=False, best=False):
+        # type: (bool, bool) -> str
+        """
+        Return the version of the OS distribution, as a string.
+
+        For details, see :func:`distro.version`.
+        """
+        versions = [
+            self.os_release_attr("version_id"),
+            self.lsb_release_attr("release"),
+            self.distro_release_attr("version_id"),
+            self._parse_distro_release_content(self.os_release_attr("pretty_name")).get(
+                "version_id", ""
+            ),
+            self._parse_distro_release_content(
+                self.lsb_release_attr("description")
+            ).get("version_id", ""),
+            self.uname_attr("release"),
+        ]
+        version = ""
+        if best:
+            # This algorithm uses the last version in priority order that has
+            # the best precision. If the versions are not in conflict, that
+            # does not matter; otherwise, using the last one instead of the
+            # first one might be considered a surprise.
+            for v in versions:
+                if v.count(".") > version.count(".") or version == "":
+                    version = v
+        else:
+            for v in versions:
+                if v != "":
+                    version = v
+                    break
+        if pretty and version and self.codename():
+            version = "{0} ({1})".format(version, self.codename())
+        return version
+
+    def version_parts(self, best=False):
+        # type: (bool) -> Tuple[str, str, str]
+        """
+        Return the version of the OS distribution, as a tuple of version
+        numbers.
+
+        For details, see :func:`distro.version_parts`.
+        """
+        version_str = self.version(best=best)
+        if version_str:
+            version_regex = re.compile(r"(\d+)\.?(\d+)?\.?(\d+)?")
+            matches = version_regex.match(version_str)
+            if matches:
+                major, minor, build_number = matches.groups()
+                return major, minor or "", build_number or ""
+        return "", "", ""
+
+    def major_version(self, best=False):
+        # type: (bool) -> str
+        """
+        Return the major version number of the current distribution.
+
+        For details, see :func:`distro.major_version`.
+        """
+        return self.version_parts(best)[0]
+
+    def minor_version(self, best=False):
+        # type: (bool) -> str
+        """
+        Return the minor version number of the current distribution.
+
+        For details, see :func:`distro.minor_version`.
+        """
+        return self.version_parts(best)[1]
+
+    def build_number(self, best=False):
+        # type: (bool) -> str
+        """
+        Return the build number of the current distribution.
+
+        For details, see :func:`distro.build_number`.
+        """
+        return self.version_parts(best)[2]
+
+    def like(self):
+        # type: () -> str
+        """
+        Return the IDs of distributions that are like the OS distribution.
+
+        For details, see :func:`distro.like`.
+        """
+        return self.os_release_attr("id_like") or ""
+
+    def codename(self):
+        # type: () -> str
+        """
+        Return the codename of the OS distribution.
+
+        For details, see :func:`distro.codename`.
+        """
+        try:
+            # Handle os_release specially since distros might purposefully set
+            # this to empty string to have no codename
+            return self._os_release_info["codename"]
+        except KeyError:
+            return (
+                self.lsb_release_attr("codename")
+                or self.distro_release_attr("codename")
+                or ""
+            )
+
+    def info(self, pretty=False, best=False):
+        # type: (bool, bool) -> InfoDict
+        """
+        Return certain machine-readable information about the OS
+        distribution.
+
+        For details, see :func:`distro.info`.
+        """
+        return dict(
+            id=self.id(),
+            version=self.version(pretty, best),
+            version_parts=dict(
+                major=self.major_version(best),
+                minor=self.minor_version(best),
+                build_number=self.build_number(best),
+            ),
+            like=self.like(),
+            codename=self.codename(),
+        )
+
+    def os_release_info(self):
+        # type: () -> Dict[str, str]
+        """
+        Return a dictionary containing key-value pairs for the information
+        items from the os-release file data source of the OS distribution.
+
+        For details, see :func:`distro.os_release_info`.
+        """
+        return self._os_release_info
+
+    def lsb_release_info(self):
+        # type: () -> Dict[str, str]
+        """
+        Return a dictionary containing key-value pairs for the information
+        items from the lsb_release command data source of the OS
+        distribution.
+
+        For details, see :func:`distro.lsb_release_info`.
+        """
+        return self._lsb_release_info
+
+    def distro_release_info(self):
+        # type: () -> Dict[str, str]
+        """
+        Return a dictionary containing key-value pairs for the information
+        items from the distro release file data source of the OS
+        distribution.
+
+        For details, see :func:`distro.distro_release_info`.
+        """
+        return self._distro_release_info
+
+    def uname_info(self):
+        # type: () -> Dict[str, str]
+        """
+        Return a dictionary containing key-value pairs for the information
+        items from the uname command data source of the OS distribution.
+
+        For details, see :func:`distro.uname_info`.
+        """
+        return self._uname_info
+
+    def os_release_attr(self, attribute):
+        # type: (str) -> str
+        """
+        Return a single named information item from the os-release file data
+        source of the OS distribution.
+
+        For details, see :func:`distro.os_release_attr`.
+        """
+        return self._os_release_info.get(attribute, "")
+
+    def lsb_release_attr(self, attribute):
+        # type: (str) -> str
+        """
+        Return a single named information item from the lsb_release command
+        output data source of the OS distribution.
+
+        For details, see :func:`distro.lsb_release_attr`.
+        """
+        return self._lsb_release_info.get(attribute, "")
+
+    def distro_release_attr(self, attribute):
+        # type: (str) -> str
+        """
+        Return a single named information item from the distro release file
+        data source of the OS distribution.
+
+        For details, see :func:`distro.distro_release_attr`.
+        """
+        return self._distro_release_info.get(attribute, "")
+
+    def uname_attr(self, attribute):
+        # type: (str) -> str
+        """
+        Return a single named information item from the uname command
+        output data source of the OS distribution.
+
+        For details, see :func:`distro.uname_attr`.
+        """
+        return self._uname_info.get(attribute, "")
+
+    @cached_property
+    def _os_release_info(self):
+        # type: () -> Dict[str, str]
+        """
+        Get the information items from the specified os-release file.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        if os.path.isfile(self.os_release_file):
+            with open(self.os_release_file) as release_file:
+                return self._parse_os_release_content(release_file)
+        return {}
+
+    @staticmethod
+    def _parse_os_release_content(lines):
+        # type: (TextIO) -> Dict[str, str]
+        """
+        Parse the lines of an os-release file.
+
+        Parameters:
+
+        * lines: Iterable through the lines in the os-release file.
+                 Each line must be a unicode string or a UTF-8 encoded byte
+                 string.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        props = {}
+        lexer = shlex.shlex(lines, posix=True)
+        lexer.whitespace_split = True
+
+        # The shlex module defines its `wordchars` variable using literals,
+        # making it dependent on the encoding of the Python source file.
+        # In Python 2.6 and 2.7, the shlex source file is encoded in
+        # 'iso-8859-1', and the `wordchars` variable is defined as a byte
+        # string. This causes a UnicodeDecodeError to be raised when the
+        # parsed content is a unicode object. The following fix resolves that
+        # (... but it should be fixed in shlex...):
+        if sys.version_info[0] == 2 and isinstance(lexer.wordchars, bytes):
+            lexer.wordchars = lexer.wordchars.decode("iso-8859-1")
+
+        tokens = list(lexer)
+        for token in tokens:
+            # At this point, all shell-like parsing has been done (i.e.
+            # comments processed, quotes and backslash escape sequences
+            # processed, multi-line values assembled, trailing newlines
+            # stripped, etc.), so the tokens are now either:
+            # * variable assignments: var=value
+            # * commands or their arguments (not allowed in os-release)
+            if "=" in token:
+                k, v = token.split("=", 1)
+                props[k.lower()] = v
+            else:
+                # Ignore any tokens that are not variable assignments
+                pass
+
+        if "version_codename" in props:
+            # os-release added a version_codename field.  Use that in
+            # preference to anything else Note that some distros purposefully
+            # do not have code names.  They should be setting
+            # version_codename=""
+            props["codename"] = props["version_codename"]
+        elif "ubuntu_codename" in props:
+            # Same as above but a non-standard field name used on older Ubuntus
+            props["codename"] = props["ubuntu_codename"]
+        elif "version" in props:
+            # If there is no version_codename, parse it from the version
+            match = re.search(r"(\(\D+\))|,(\s+)?\D+", props["version"])
+            if match:
+                codename = match.group()
+                codename = codename.strip("()")
+                codename = codename.strip(",")
+                codename = codename.strip()
+                # codename appears within paranthese.
+                props["codename"] = codename
+
+        return props
+
+    @cached_property
+    def _lsb_release_info(self):
+        # type: () -> Dict[str, str]
+        """
+        Get the information items from the lsb_release command output.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        if not self.include_lsb:
+            return {}
+        with open(os.devnull, "wb") as devnull:
+            try:
+                cmd = ("lsb_release", "-a")
+                stdout = subprocess.check_output(cmd, stderr=devnull)
+            # Command not found or lsb_release returned error
+            except (OSError, subprocess.CalledProcessError):
+                return {}
+        content = self._to_str(stdout).splitlines()
+        return self._parse_lsb_release_content(content)
+
+    @staticmethod
+    def _parse_lsb_release_content(lines):
+        # type: (Iterable[str]) -> Dict[str, str]
+        """
+        Parse the output of the lsb_release command.
+
+        Parameters:
+
+        * lines: Iterable through the lines of the lsb_release output.
+                 Each line must be a unicode string or a UTF-8 encoded byte
+                 string.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        props = {}
+        for line in lines:
+            kv = line.strip("\n").split(":", 1)
+            if len(kv) != 2:
+                # Ignore lines without colon.
+                continue
+            k, v = kv
+            props.update({k.replace(" ", "_").lower(): v.strip()})
+        return props
+
+    @cached_property
+    def _uname_info(self):
+        # type: () -> Dict[str, str]
+        with open(os.devnull, "wb") as devnull:
+            try:
+                cmd = ("uname", "-rs")
+                stdout = subprocess.check_output(cmd, stderr=devnull)
+            except OSError:
+                return {}
+        content = self._to_str(stdout).splitlines()
+        return self._parse_uname_content(content)
+
+    @staticmethod
+    def _parse_uname_content(lines):
+        # type: (Sequence[str]) -> Dict[str, str]
+        props = {}
+        match = re.search(r"^([^\s]+)\s+([\d\.]+)", lines[0].strip())
+        if match:
+            name, version = match.groups()
+
+            # This is to prevent the Linux kernel version from
+            # appearing as the 'best' version on otherwise
+            # identifiable distributions.
+            if name == "Linux":
+                return {}
+            props["id"] = name.lower()
+            props["name"] = name
+            props["release"] = version
+        return props
+
+    @staticmethod
+    def _to_str(text):
+        # type: (Union[bytes, str]) -> str
+        encoding = sys.getfilesystemencoding()
+        encoding = "utf-8" if encoding == "ascii" else encoding
+
+        if sys.version_info[0] >= 3:
+            if isinstance(text, bytes):
+                return text.decode(encoding)
+        else:
+            if isinstance(text, unicode):  # noqa
+                return text.encode(encoding)
+
+        return text
+
+    @cached_property
+    def _distro_release_info(self):
+        # type: () -> Dict[str, str]
+        """
+        Get the information items from the specified distro release file.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        if self.distro_release_file:
+            # If it was specified, we use it and parse what we can, even if
+            # its file name or content does not match the expected pattern.
+            distro_info = self._parse_distro_release_file(self.distro_release_file)
+            basename = os.path.basename(self.distro_release_file)
+            # The file name pattern for user-specified distro release files
+            # is somewhat more tolerant (compared to when searching for the
+            # file), because we want to use what was specified as best as
+            # possible.
+            match = _DISTRO_RELEASE_BASENAME_PATTERN.match(basename)
+            if "name" in distro_info and "cloudlinux" in distro_info["name"].lower():
+                distro_info["id"] = "cloudlinux"
+            elif match:
+                distro_info["id"] = match.group(1)
+            return distro_info
+        else:
+            try:
+                basenames = os.listdir(self.etc_dir)
+                # We sort for repeatability in cases where there are multiple
+                # distro specific files; e.g. CentOS, Oracle, Enterprise all
+                # containing `redhat-release` on top of their own.
+                basenames.sort()
+            except OSError:
+                # This may occur when /etc is not readable but we can't be
+                # sure about the *-release files. Check common entries of
+                # /etc for information. If they turn out to not be there the
+                # error is handled in `_parse_distro_release_file()`.
+                basenames = [
+                    "SuSE-release",
+                    "arch-release",
+                    "base-release",
+                    "centos-release",
+                    "fedora-release",
+                    "gentoo-release",
+                    "mageia-release",
+                    "mandrake-release",
+                    "mandriva-release",
+                    "mandrivalinux-release",
+                    "manjaro-release",
+                    "oracle-release",
+                    "redhat-release",
+                    "sl-release",
+                    "slackware-version",
+                ]
+            for basename in basenames:
+                if basename in _DISTRO_RELEASE_IGNORE_BASENAMES:
+                    continue
+                match = _DISTRO_RELEASE_BASENAME_PATTERN.match(basename)
+                if match:
+                    filepath = os.path.join(self.etc_dir, basename)
+                    distro_info = self._parse_distro_release_file(filepath)
+                    if "name" in distro_info:
+                        # The name is always present if the pattern matches
+                        self.distro_release_file = filepath
+                        distro_info["id"] = match.group(1)
+                        if "cloudlinux" in distro_info["name"].lower():
+                            distro_info["id"] = "cloudlinux"
+                        return distro_info
+            return {}
+
+    def _parse_distro_release_file(self, filepath):
+        # type: (str) -> Dict[str, str]
+        """
+        Parse a distro release file.
+
+        Parameters:
+
+        * filepath: Path name of the distro release file.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        try:
+            with open(filepath) as fp:
+                # Only parse the first line. For instance, on SLES there
+                # are multiple lines. We don't want them...
+                return self._parse_distro_release_content(fp.readline())
+        except (OSError, IOError):
+            # Ignore not being able to read a specific, seemingly version
+            # related file.
+            # See https://github.com/python-distro/distro/issues/162
+            return {}
+
+    @staticmethod
+    def _parse_distro_release_content(line):
+        # type: (str) -> Dict[str, str]
+        """
+        Parse a line from a distro release file.
+
+        Parameters:
+        * line: Line from the distro release file. Must be a unicode string
+                or a UTF-8 encoded byte string.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        matches = _DISTRO_RELEASE_CONTENT_REVERSED_PATTERN.match(line.strip()[::-1])
+        distro_info = {}
+        if matches:
+            # regexp ensures non-None
+            distro_info["name"] = matches.group(3)[::-1]
+            if matches.group(2):
+                distro_info["version_id"] = matches.group(2)[::-1]
+            if matches.group(1):
+                distro_info["codename"] = matches.group(1)[::-1]
+        elif line:
+            distro_info["name"] = line.strip()
+        return distro_info
+
+
+_distro = LinuxDistribution()
+
+
+def main():
+    # type: () -> None
+    logger = logging.getLogger(__name__)
+    logger.setLevel(logging.DEBUG)
+    logger.addHandler(logging.StreamHandler(sys.stdout))
+
+    parser = argparse.ArgumentParser(description="OS distro info tool")
+    parser.add_argument(
+        "--json", "-j", help="Output in machine readable format", action="store_true"
+    )
+
+    parser.add_argument(
+        "--root-dir",
+        "-r",
+        type=str,
+        dest="root_dir",
+        help="Path to the root filesystem directory (defaults to /)",
+    )
+
+    args = parser.parse_args()
+
+    if args.root_dir:
+        dist = LinuxDistribution(
+            include_lsb=False, include_uname=False, root_dir=args.root_dir
+        )
+    else:
+        dist = _distro
+
+    if args.json:
+        logger.info(json.dumps(dist.info(), indent=4, sort_keys=True))
+    else:
+        logger.info("Name: %s", dist.name(pretty=True))
+        distribution_version = dist.version(pretty=True)
+        logger.info("Version: %s", distribution_version)
+        distribution_codename = dist.codename()
+        logger.info("Codename: %s", distribution_codename)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/__init__.py
new file mode 100644
index 0000000..d1d82f1
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/__init__.py
@@ -0,0 +1,35 @@
+"""
+HTML parsing library based on the `WHATWG HTML specification
+`_. The parser is designed to be compatible with
+existing HTML found in the wild and implements well-defined error recovery that
+is largely compatible with modern desktop web browsers.
+
+Example usage::
+
+    from pip._vendor import html5lib
+    with open("my_document.html", "rb") as f:
+        tree = html5lib.parse(f)
+
+For convenience, this module re-exports the following names:
+
+* :func:`~.html5parser.parse`
+* :func:`~.html5parser.parseFragment`
+* :class:`~.html5parser.HTMLParser`
+* :func:`~.treebuilders.getTreeBuilder`
+* :func:`~.treewalkers.getTreeWalker`
+* :func:`~.serializer.serialize`
+"""
+
+from __future__ import absolute_import, division, unicode_literals
+
+from .html5parser import HTMLParser, parse, parseFragment
+from .treebuilders import getTreeBuilder
+from .treewalkers import getTreeWalker
+from .serializer import serialize
+
+__all__ = ["HTMLParser", "parse", "parseFragment", "getTreeBuilder",
+           "getTreeWalker", "serialize"]
+
+# this has to be at the top level, see how setup.py parses this
+#: Distribution version number.
+__version__ = "1.1"
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_ihatexml.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_ihatexml.py
new file mode 100644
index 0000000..3ff803c
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_ihatexml.py
@@ -0,0 +1,289 @@
+from __future__ import absolute_import, division, unicode_literals
+
+import re
+import warnings
+
+from .constants import DataLossWarning
+
+baseChar = """
+[#x0041-#x005A] | [#x0061-#x007A] | [#x00C0-#x00D6] | [#x00D8-#x00F6] |
+[#x00F8-#x00FF] | [#x0100-#x0131] | [#x0134-#x013E] | [#x0141-#x0148] |
+[#x014A-#x017E] | [#x0180-#x01C3] | [#x01CD-#x01F0] | [#x01F4-#x01F5] |
+[#x01FA-#x0217] | [#x0250-#x02A8] | [#x02BB-#x02C1] | #x0386 |
+[#x0388-#x038A] | #x038C | [#x038E-#x03A1] | [#x03A3-#x03CE] |
+[#x03D0-#x03D6] | #x03DA | #x03DC | #x03DE | #x03E0 | [#x03E2-#x03F3] |
+[#x0401-#x040C] | [#x040E-#x044F] | [#x0451-#x045C] | [#x045E-#x0481] |
+[#x0490-#x04C4] | [#x04C7-#x04C8] | [#x04CB-#x04CC] | [#x04D0-#x04EB] |
+[#x04EE-#x04F5] | [#x04F8-#x04F9] | [#x0531-#x0556] | #x0559 |
+[#x0561-#x0586] | [#x05D0-#x05EA] | [#x05F0-#x05F2] | [#x0621-#x063A] |
+[#x0641-#x064A] | [#x0671-#x06B7] | [#x06BA-#x06BE] | [#x06C0-#x06CE] |
+[#x06D0-#x06D3] | #x06D5 | [#x06E5-#x06E6] | [#x0905-#x0939] | #x093D |
+[#x0958-#x0961] | [#x0985-#x098C] | [#x098F-#x0990] | [#x0993-#x09A8] |
+[#x09AA-#x09B0] | #x09B2 | [#x09B6-#x09B9] | [#x09DC-#x09DD] |
+[#x09DF-#x09E1] | [#x09F0-#x09F1] | [#x0A05-#x0A0A] | [#x0A0F-#x0A10] |
+[#x0A13-#x0A28] | [#x0A2A-#x0A30] | [#x0A32-#x0A33] | [#x0A35-#x0A36] |
+[#x0A38-#x0A39] | [#x0A59-#x0A5C] | #x0A5E | [#x0A72-#x0A74] |
+[#x0A85-#x0A8B] | #x0A8D | [#x0A8F-#x0A91] | [#x0A93-#x0AA8] |
+[#x0AAA-#x0AB0] | [#x0AB2-#x0AB3] | [#x0AB5-#x0AB9] | #x0ABD | #x0AE0 |
+[#x0B05-#x0B0C] | [#x0B0F-#x0B10] | [#x0B13-#x0B28] | [#x0B2A-#x0B30] |
+[#x0B32-#x0B33] | [#x0B36-#x0B39] | #x0B3D | [#x0B5C-#x0B5D] |
+[#x0B5F-#x0B61] | [#x0B85-#x0B8A] | [#x0B8E-#x0B90] | [#x0B92-#x0B95] |
+[#x0B99-#x0B9A] | #x0B9C | [#x0B9E-#x0B9F] | [#x0BA3-#x0BA4] |
+[#x0BA8-#x0BAA] | [#x0BAE-#x0BB5] | [#x0BB7-#x0BB9] | [#x0C05-#x0C0C] |
+[#x0C0E-#x0C10] | [#x0C12-#x0C28] | [#x0C2A-#x0C33] | [#x0C35-#x0C39] |
+[#x0C60-#x0C61] | [#x0C85-#x0C8C] | [#x0C8E-#x0C90] | [#x0C92-#x0CA8] |
+[#x0CAA-#x0CB3] | [#x0CB5-#x0CB9] | #x0CDE | [#x0CE0-#x0CE1] |
+[#x0D05-#x0D0C] | [#x0D0E-#x0D10] | [#x0D12-#x0D28] | [#x0D2A-#x0D39] |
+[#x0D60-#x0D61] | [#x0E01-#x0E2E] | #x0E30 | [#x0E32-#x0E33] |
+[#x0E40-#x0E45] | [#x0E81-#x0E82] | #x0E84 | [#x0E87-#x0E88] | #x0E8A |
+#x0E8D | [#x0E94-#x0E97] | [#x0E99-#x0E9F] | [#x0EA1-#x0EA3] | #x0EA5 |
+#x0EA7 | [#x0EAA-#x0EAB] | [#x0EAD-#x0EAE] | #x0EB0 | [#x0EB2-#x0EB3] |
+#x0EBD | [#x0EC0-#x0EC4] | [#x0F40-#x0F47] | [#x0F49-#x0F69] |
+[#x10A0-#x10C5] | [#x10D0-#x10F6] | #x1100 | [#x1102-#x1103] |
+[#x1105-#x1107] | #x1109 | [#x110B-#x110C] | [#x110E-#x1112] | #x113C |
+#x113E | #x1140 | #x114C | #x114E | #x1150 | [#x1154-#x1155] | #x1159 |
+[#x115F-#x1161] | #x1163 | #x1165 | #x1167 | #x1169 | [#x116D-#x116E] |
+[#x1172-#x1173] | #x1175 | #x119E | #x11A8 | #x11AB | [#x11AE-#x11AF] |
+[#x11B7-#x11B8] | #x11BA | [#x11BC-#x11C2] | #x11EB | #x11F0 | #x11F9 |
+[#x1E00-#x1E9B] | [#x1EA0-#x1EF9] | [#x1F00-#x1F15] | [#x1F18-#x1F1D] |
+[#x1F20-#x1F45] | [#x1F48-#x1F4D] | [#x1F50-#x1F57] | #x1F59 | #x1F5B |
+#x1F5D | [#x1F5F-#x1F7D] | [#x1F80-#x1FB4] | [#x1FB6-#x1FBC] | #x1FBE |
+[#x1FC2-#x1FC4] | [#x1FC6-#x1FCC] | [#x1FD0-#x1FD3] | [#x1FD6-#x1FDB] |
+[#x1FE0-#x1FEC] | [#x1FF2-#x1FF4] | [#x1FF6-#x1FFC] | #x2126 |
+[#x212A-#x212B] | #x212E | [#x2180-#x2182] | [#x3041-#x3094] |
+[#x30A1-#x30FA] | [#x3105-#x312C] | [#xAC00-#xD7A3]"""
+
+ideographic = """[#x4E00-#x9FA5] | #x3007 | [#x3021-#x3029]"""
+
+combiningCharacter = """
+[#x0300-#x0345] | [#x0360-#x0361] | [#x0483-#x0486] | [#x0591-#x05A1] |
+[#x05A3-#x05B9] | [#x05BB-#x05BD] | #x05BF | [#x05C1-#x05C2] | #x05C4 |
+[#x064B-#x0652] | #x0670 | [#x06D6-#x06DC] | [#x06DD-#x06DF] |
+[#x06E0-#x06E4] | [#x06E7-#x06E8] | [#x06EA-#x06ED] | [#x0901-#x0903] |
+#x093C | [#x093E-#x094C] | #x094D | [#x0951-#x0954] | [#x0962-#x0963] |
+[#x0981-#x0983] | #x09BC | #x09BE | #x09BF | [#x09C0-#x09C4] |
+[#x09C7-#x09C8] | [#x09CB-#x09CD] | #x09D7 | [#x09E2-#x09E3] | #x0A02 |
+#x0A3C | #x0A3E | #x0A3F | [#x0A40-#x0A42] | [#x0A47-#x0A48] |
+[#x0A4B-#x0A4D] | [#x0A70-#x0A71] | [#x0A81-#x0A83] | #x0ABC |
+[#x0ABE-#x0AC5] | [#x0AC7-#x0AC9] | [#x0ACB-#x0ACD] | [#x0B01-#x0B03] |
+#x0B3C | [#x0B3E-#x0B43] | [#x0B47-#x0B48] | [#x0B4B-#x0B4D] |
+[#x0B56-#x0B57] | [#x0B82-#x0B83] | [#x0BBE-#x0BC2] | [#x0BC6-#x0BC8] |
+[#x0BCA-#x0BCD] | #x0BD7 | [#x0C01-#x0C03] | [#x0C3E-#x0C44] |
+[#x0C46-#x0C48] | [#x0C4A-#x0C4D] | [#x0C55-#x0C56] | [#x0C82-#x0C83] |
+[#x0CBE-#x0CC4] | [#x0CC6-#x0CC8] | [#x0CCA-#x0CCD] | [#x0CD5-#x0CD6] |
+[#x0D02-#x0D03] | [#x0D3E-#x0D43] | [#x0D46-#x0D48] | [#x0D4A-#x0D4D] |
+#x0D57 | #x0E31 | [#x0E34-#x0E3A] | [#x0E47-#x0E4E] | #x0EB1 |
+[#x0EB4-#x0EB9] | [#x0EBB-#x0EBC] | [#x0EC8-#x0ECD] | [#x0F18-#x0F19] |
+#x0F35 | #x0F37 | #x0F39 | #x0F3E | #x0F3F | [#x0F71-#x0F84] |
+[#x0F86-#x0F8B] | [#x0F90-#x0F95] | #x0F97 | [#x0F99-#x0FAD] |
+[#x0FB1-#x0FB7] | #x0FB9 | [#x20D0-#x20DC] | #x20E1 | [#x302A-#x302F] |
+#x3099 | #x309A"""
+
+digit = """
+[#x0030-#x0039] | [#x0660-#x0669] | [#x06F0-#x06F9] | [#x0966-#x096F] |
+[#x09E6-#x09EF] | [#x0A66-#x0A6F] | [#x0AE6-#x0AEF] | [#x0B66-#x0B6F] |
+[#x0BE7-#x0BEF] | [#x0C66-#x0C6F] | [#x0CE6-#x0CEF] | [#x0D66-#x0D6F] |
+[#x0E50-#x0E59] | [#x0ED0-#x0ED9] | [#x0F20-#x0F29]"""
+
+extender = """
+#x00B7 | #x02D0 | #x02D1 | #x0387 | #x0640 | #x0E46 | #x0EC6 | #x3005 |
+#[#x3031-#x3035] | [#x309D-#x309E] | [#x30FC-#x30FE]"""
+
+letter = " | ".join([baseChar, ideographic])
+
+# Without the
+name = " | ".join([letter, digit, ".", "-", "_", combiningCharacter,
+                   extender])
+nameFirst = " | ".join([letter, "_"])
+
+reChar = re.compile(r"#x([\d|A-F]{4,4})")
+reCharRange = re.compile(r"\[#x([\d|A-F]{4,4})-#x([\d|A-F]{4,4})\]")
+
+
+def charStringToList(chars):
+    charRanges = [item.strip() for item in chars.split(" | ")]
+    rv = []
+    for item in charRanges:
+        foundMatch = False
+        for regexp in (reChar, reCharRange):
+            match = regexp.match(item)
+            if match is not None:
+                rv.append([hexToInt(item) for item in match.groups()])
+                if len(rv[-1]) == 1:
+                    rv[-1] = rv[-1] * 2
+                foundMatch = True
+                break
+        if not foundMatch:
+            assert len(item) == 1
+
+            rv.append([ord(item)] * 2)
+    rv = normaliseCharList(rv)
+    return rv
+
+
+def normaliseCharList(charList):
+    charList = sorted(charList)
+    for item in charList:
+        assert item[1] >= item[0]
+    rv = []
+    i = 0
+    while i < len(charList):
+        j = 1
+        rv.append(charList[i])
+        while i + j < len(charList) and charList[i + j][0] <= rv[-1][1] + 1:
+            rv[-1][1] = charList[i + j][1]
+            j += 1
+        i += j
+    return rv
+
+
+# We don't really support characters above the BMP :(
+max_unicode = int("FFFF", 16)
+
+
+def missingRanges(charList):
+    rv = []
+    if charList[0] != 0:
+        rv.append([0, charList[0][0] - 1])
+    for i, item in enumerate(charList[:-1]):
+        rv.append([item[1] + 1, charList[i + 1][0] - 1])
+    if charList[-1][1] != max_unicode:
+        rv.append([charList[-1][1] + 1, max_unicode])
+    return rv
+
+
+def listToRegexpStr(charList):
+    rv = []
+    for item in charList:
+        if item[0] == item[1]:
+            rv.append(escapeRegexp(chr(item[0])))
+        else:
+            rv.append(escapeRegexp(chr(item[0])) + "-" +
+                      escapeRegexp(chr(item[1])))
+    return "[%s]" % "".join(rv)
+
+
+def hexToInt(hex_str):
+    return int(hex_str, 16)
+
+
+def escapeRegexp(string):
+    specialCharacters = (".", "^", "$", "*", "+", "?", "{", "}",
+                         "[", "]", "|", "(", ")", "-")
+    for char in specialCharacters:
+        string = string.replace(char, "\\" + char)
+
+    return string
+
+# output from the above
+nonXmlNameBMPRegexp = re.compile('[\x00-,/:-@\\[-\\^`\\{-\xb6\xb8-\xbf\xd7\xf7\u0132-\u0133\u013f-\u0140\u0149\u017f\u01c4-\u01cc\u01f1-\u01f3\u01f6-\u01f9\u0218-\u024f\u02a9-\u02ba\u02c2-\u02cf\u02d2-\u02ff\u0346-\u035f\u0362-\u0385\u038b\u038d\u03a2\u03cf\u03d7-\u03d9\u03db\u03dd\u03df\u03e1\u03f4-\u0400\u040d\u0450\u045d\u0482\u0487-\u048f\u04c5-\u04c6\u04c9-\u04ca\u04cd-\u04cf\u04ec-\u04ed\u04f6-\u04f7\u04fa-\u0530\u0557-\u0558\u055a-\u0560\u0587-\u0590\u05a2\u05ba\u05be\u05c0\u05c3\u05c5-\u05cf\u05eb-\u05ef\u05f3-\u0620\u063b-\u063f\u0653-\u065f\u066a-\u066f\u06b8-\u06b9\u06bf\u06cf\u06d4\u06e9\u06ee-\u06ef\u06fa-\u0900\u0904\u093a-\u093b\u094e-\u0950\u0955-\u0957\u0964-\u0965\u0970-\u0980\u0984\u098d-\u098e\u0991-\u0992\u09a9\u09b1\u09b3-\u09b5\u09ba-\u09bb\u09bd\u09c5-\u09c6\u09c9-\u09ca\u09ce-\u09d6\u09d8-\u09db\u09de\u09e4-\u09e5\u09f2-\u0a01\u0a03-\u0a04\u0a0b-\u0a0e\u0a11-\u0a12\u0a29\u0a31\u0a34\u0a37\u0a3a-\u0a3b\u0a3d\u0a43-\u0a46\u0a49-\u0a4a\u0a4e-\u0a58\u0a5d\u0a5f-\u0a65\u0a75-\u0a80\u0a84\u0a8c\u0a8e\u0a92\u0aa9\u0ab1\u0ab4\u0aba-\u0abb\u0ac6\u0aca\u0ace-\u0adf\u0ae1-\u0ae5\u0af0-\u0b00\u0b04\u0b0d-\u0b0e\u0b11-\u0b12\u0b29\u0b31\u0b34-\u0b35\u0b3a-\u0b3b\u0b44-\u0b46\u0b49-\u0b4a\u0b4e-\u0b55\u0b58-\u0b5b\u0b5e\u0b62-\u0b65\u0b70-\u0b81\u0b84\u0b8b-\u0b8d\u0b91\u0b96-\u0b98\u0b9b\u0b9d\u0ba0-\u0ba2\u0ba5-\u0ba7\u0bab-\u0bad\u0bb6\u0bba-\u0bbd\u0bc3-\u0bc5\u0bc9\u0bce-\u0bd6\u0bd8-\u0be6\u0bf0-\u0c00\u0c04\u0c0d\u0c11\u0c29\u0c34\u0c3a-\u0c3d\u0c45\u0c49\u0c4e-\u0c54\u0c57-\u0c5f\u0c62-\u0c65\u0c70-\u0c81\u0c84\u0c8d\u0c91\u0ca9\u0cb4\u0cba-\u0cbd\u0cc5\u0cc9\u0cce-\u0cd4\u0cd7-\u0cdd\u0cdf\u0ce2-\u0ce5\u0cf0-\u0d01\u0d04\u0d0d\u0d11\u0d29\u0d3a-\u0d3d\u0d44-\u0d45\u0d49\u0d4e-\u0d56\u0d58-\u0d5f\u0d62-\u0d65\u0d70-\u0e00\u0e2f\u0e3b-\u0e3f\u0e4f\u0e5a-\u0e80\u0e83\u0e85-\u0e86\u0e89\u0e8b-\u0e8c\u0e8e-\u0e93\u0e98\u0ea0\u0ea4\u0ea6\u0ea8-\u0ea9\u0eac\u0eaf\u0eba\u0ebe-\u0ebf\u0ec5\u0ec7\u0ece-\u0ecf\u0eda-\u0f17\u0f1a-\u0f1f\u0f2a-\u0f34\u0f36\u0f38\u0f3a-\u0f3d\u0f48\u0f6a-\u0f70\u0f85\u0f8c-\u0f8f\u0f96\u0f98\u0fae-\u0fb0\u0fb8\u0fba-\u109f\u10c6-\u10cf\u10f7-\u10ff\u1101\u1104\u1108\u110a\u110d\u1113-\u113b\u113d\u113f\u1141-\u114b\u114d\u114f\u1151-\u1153\u1156-\u1158\u115a-\u115e\u1162\u1164\u1166\u1168\u116a-\u116c\u116f-\u1171\u1174\u1176-\u119d\u119f-\u11a7\u11a9-\u11aa\u11ac-\u11ad\u11b0-\u11b6\u11b9\u11bb\u11c3-\u11ea\u11ec-\u11ef\u11f1-\u11f8\u11fa-\u1dff\u1e9c-\u1e9f\u1efa-\u1eff\u1f16-\u1f17\u1f1e-\u1f1f\u1f46-\u1f47\u1f4e-\u1f4f\u1f58\u1f5a\u1f5c\u1f5e\u1f7e-\u1f7f\u1fb5\u1fbd\u1fbf-\u1fc1\u1fc5\u1fcd-\u1fcf\u1fd4-\u1fd5\u1fdc-\u1fdf\u1fed-\u1ff1\u1ff5\u1ffd-\u20cf\u20dd-\u20e0\u20e2-\u2125\u2127-\u2129\u212c-\u212d\u212f-\u217f\u2183-\u3004\u3006\u3008-\u3020\u3030\u3036-\u3040\u3095-\u3098\u309b-\u309c\u309f-\u30a0\u30fb\u30ff-\u3104\u312d-\u4dff\u9fa6-\uabff\ud7a4-\uffff]')  # noqa
+
+nonXmlNameFirstBMPRegexp = re.compile('[\x00-@\\[-\\^`\\{-\xbf\xd7\xf7\u0132-\u0133\u013f-\u0140\u0149\u017f\u01c4-\u01cc\u01f1-\u01f3\u01f6-\u01f9\u0218-\u024f\u02a9-\u02ba\u02c2-\u0385\u0387\u038b\u038d\u03a2\u03cf\u03d7-\u03d9\u03db\u03dd\u03df\u03e1\u03f4-\u0400\u040d\u0450\u045d\u0482-\u048f\u04c5-\u04c6\u04c9-\u04ca\u04cd-\u04cf\u04ec-\u04ed\u04f6-\u04f7\u04fa-\u0530\u0557-\u0558\u055a-\u0560\u0587-\u05cf\u05eb-\u05ef\u05f3-\u0620\u063b-\u0640\u064b-\u0670\u06b8-\u06b9\u06bf\u06cf\u06d4\u06d6-\u06e4\u06e7-\u0904\u093a-\u093c\u093e-\u0957\u0962-\u0984\u098d-\u098e\u0991-\u0992\u09a9\u09b1\u09b3-\u09b5\u09ba-\u09db\u09de\u09e2-\u09ef\u09f2-\u0a04\u0a0b-\u0a0e\u0a11-\u0a12\u0a29\u0a31\u0a34\u0a37\u0a3a-\u0a58\u0a5d\u0a5f-\u0a71\u0a75-\u0a84\u0a8c\u0a8e\u0a92\u0aa9\u0ab1\u0ab4\u0aba-\u0abc\u0abe-\u0adf\u0ae1-\u0b04\u0b0d-\u0b0e\u0b11-\u0b12\u0b29\u0b31\u0b34-\u0b35\u0b3a-\u0b3c\u0b3e-\u0b5b\u0b5e\u0b62-\u0b84\u0b8b-\u0b8d\u0b91\u0b96-\u0b98\u0b9b\u0b9d\u0ba0-\u0ba2\u0ba5-\u0ba7\u0bab-\u0bad\u0bb6\u0bba-\u0c04\u0c0d\u0c11\u0c29\u0c34\u0c3a-\u0c5f\u0c62-\u0c84\u0c8d\u0c91\u0ca9\u0cb4\u0cba-\u0cdd\u0cdf\u0ce2-\u0d04\u0d0d\u0d11\u0d29\u0d3a-\u0d5f\u0d62-\u0e00\u0e2f\u0e31\u0e34-\u0e3f\u0e46-\u0e80\u0e83\u0e85-\u0e86\u0e89\u0e8b-\u0e8c\u0e8e-\u0e93\u0e98\u0ea0\u0ea4\u0ea6\u0ea8-\u0ea9\u0eac\u0eaf\u0eb1\u0eb4-\u0ebc\u0ebe-\u0ebf\u0ec5-\u0f3f\u0f48\u0f6a-\u109f\u10c6-\u10cf\u10f7-\u10ff\u1101\u1104\u1108\u110a\u110d\u1113-\u113b\u113d\u113f\u1141-\u114b\u114d\u114f\u1151-\u1153\u1156-\u1158\u115a-\u115e\u1162\u1164\u1166\u1168\u116a-\u116c\u116f-\u1171\u1174\u1176-\u119d\u119f-\u11a7\u11a9-\u11aa\u11ac-\u11ad\u11b0-\u11b6\u11b9\u11bb\u11c3-\u11ea\u11ec-\u11ef\u11f1-\u11f8\u11fa-\u1dff\u1e9c-\u1e9f\u1efa-\u1eff\u1f16-\u1f17\u1f1e-\u1f1f\u1f46-\u1f47\u1f4e-\u1f4f\u1f58\u1f5a\u1f5c\u1f5e\u1f7e-\u1f7f\u1fb5\u1fbd\u1fbf-\u1fc1\u1fc5\u1fcd-\u1fcf\u1fd4-\u1fd5\u1fdc-\u1fdf\u1fed-\u1ff1\u1ff5\u1ffd-\u2125\u2127-\u2129\u212c-\u212d\u212f-\u217f\u2183-\u3006\u3008-\u3020\u302a-\u3040\u3095-\u30a0\u30fb-\u3104\u312d-\u4dff\u9fa6-\uabff\ud7a4-\uffff]')  # noqa
+
+# Simpler things
+nonPubidCharRegexp = re.compile("[^\x20\x0D\x0Aa-zA-Z0-9\\-'()+,./:=?;!*#@$_%]")
+
+
+class InfosetFilter(object):
+    replacementRegexp = re.compile(r"U[\dA-F]{5,5}")
+
+    def __init__(self,
+                 dropXmlnsLocalName=False,
+                 dropXmlnsAttrNs=False,
+                 preventDoubleDashComments=False,
+                 preventDashAtCommentEnd=False,
+                 replaceFormFeedCharacters=True,
+                 preventSingleQuotePubid=False):
+
+        self.dropXmlnsLocalName = dropXmlnsLocalName
+        self.dropXmlnsAttrNs = dropXmlnsAttrNs
+
+        self.preventDoubleDashComments = preventDoubleDashComments
+        self.preventDashAtCommentEnd = preventDashAtCommentEnd
+
+        self.replaceFormFeedCharacters = replaceFormFeedCharacters
+
+        self.preventSingleQuotePubid = preventSingleQuotePubid
+
+        self.replaceCache = {}
+
+    def coerceAttribute(self, name, namespace=None):
+        if self.dropXmlnsLocalName and name.startswith("xmlns:"):
+            warnings.warn("Attributes cannot begin with xmlns", DataLossWarning)
+            return None
+        elif (self.dropXmlnsAttrNs and
+              namespace == "http://www.w3.org/2000/xmlns/"):
+            warnings.warn("Attributes cannot be in the xml namespace", DataLossWarning)
+            return None
+        else:
+            return self.toXmlName(name)
+
+    def coerceElement(self, name):
+        return self.toXmlName(name)
+
+    def coerceComment(self, data):
+        if self.preventDoubleDashComments:
+            while "--" in data:
+                warnings.warn("Comments cannot contain adjacent dashes", DataLossWarning)
+                data = data.replace("--", "- -")
+            if data.endswith("-"):
+                warnings.warn("Comments cannot end in a dash", DataLossWarning)
+                data += " "
+        return data
+
+    def coerceCharacters(self, data):
+        if self.replaceFormFeedCharacters:
+            for _ in range(data.count("\x0C")):
+                warnings.warn("Text cannot contain U+000C", DataLossWarning)
+            data = data.replace("\x0C", " ")
+        # Other non-xml characters
+        return data
+
+    def coercePubid(self, data):
+        dataOutput = data
+        for char in nonPubidCharRegexp.findall(data):
+            warnings.warn("Coercing non-XML pubid", DataLossWarning)
+            replacement = self.getReplacementCharacter(char)
+            dataOutput = dataOutput.replace(char, replacement)
+        if self.preventSingleQuotePubid and dataOutput.find("'") >= 0:
+            warnings.warn("Pubid cannot contain single quote", DataLossWarning)
+            dataOutput = dataOutput.replace("'", self.getReplacementCharacter("'"))
+        return dataOutput
+
+    def toXmlName(self, name):
+        nameFirst = name[0]
+        nameRest = name[1:]
+        m = nonXmlNameFirstBMPRegexp.match(nameFirst)
+        if m:
+            warnings.warn("Coercing non-XML name: %s" % name, DataLossWarning)
+            nameFirstOutput = self.getReplacementCharacter(nameFirst)
+        else:
+            nameFirstOutput = nameFirst
+
+        nameRestOutput = nameRest
+        replaceChars = set(nonXmlNameBMPRegexp.findall(nameRest))
+        for char in replaceChars:
+            warnings.warn("Coercing non-XML name: %s" % name, DataLossWarning)
+            replacement = self.getReplacementCharacter(char)
+            nameRestOutput = nameRestOutput.replace(char, replacement)
+        return nameFirstOutput + nameRestOutput
+
+    def getReplacementCharacter(self, char):
+        if char in self.replaceCache:
+            replacement = self.replaceCache[char]
+        else:
+            replacement = self.escapeChar(char)
+        return replacement
+
+    def fromXmlName(self, name):
+        for item in set(self.replacementRegexp.findall(name)):
+            name = name.replace(item, self.unescapeChar(item))
+        return name
+
+    def escapeChar(self, char):
+        replacement = "U%05X" % ord(char)
+        self.replaceCache[char] = replacement
+        return replacement
+
+    def unescapeChar(self, charcode):
+        return chr(int(charcode[1:], 16))
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_inputstream.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_inputstream.py
new file mode 100644
index 0000000..e0bb376
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_inputstream.py
@@ -0,0 +1,918 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from pip._vendor.six import text_type
+from pip._vendor.six.moves import http_client, urllib
+
+import codecs
+import re
+from io import BytesIO, StringIO
+
+from pip._vendor import webencodings
+
+from .constants import EOF, spaceCharacters, asciiLetters, asciiUppercase
+from .constants import _ReparseException
+from . import _utils
+
+# Non-unicode versions of constants for use in the pre-parser
+spaceCharactersBytes = frozenset([item.encode("ascii") for item in spaceCharacters])
+asciiLettersBytes = frozenset([item.encode("ascii") for item in asciiLetters])
+asciiUppercaseBytes = frozenset([item.encode("ascii") for item in asciiUppercase])
+spacesAngleBrackets = spaceCharactersBytes | frozenset([b">", b"<"])
+
+
+invalid_unicode_no_surrogate = "[\u0001-\u0008\u000B\u000E-\u001F\u007F-\u009F\uFDD0-\uFDEF\uFFFE\uFFFF\U0001FFFE\U0001FFFF\U0002FFFE\U0002FFFF\U0003FFFE\U0003FFFF\U0004FFFE\U0004FFFF\U0005FFFE\U0005FFFF\U0006FFFE\U0006FFFF\U0007FFFE\U0007FFFF\U0008FFFE\U0008FFFF\U0009FFFE\U0009FFFF\U000AFFFE\U000AFFFF\U000BFFFE\U000BFFFF\U000CFFFE\U000CFFFF\U000DFFFE\U000DFFFF\U000EFFFE\U000EFFFF\U000FFFFE\U000FFFFF\U0010FFFE\U0010FFFF]"  # noqa
+
+if _utils.supports_lone_surrogates:
+    # Use one extra step of indirection and create surrogates with
+    # eval. Not using this indirection would introduce an illegal
+    # unicode literal on platforms not supporting such lone
+    # surrogates.
+    assert invalid_unicode_no_surrogate[-1] == "]" and invalid_unicode_no_surrogate.count("]") == 1
+    invalid_unicode_re = re.compile(invalid_unicode_no_surrogate[:-1] +
+                                    eval('"\\uD800-\\uDFFF"') +  # pylint:disable=eval-used
+                                    "]")
+else:
+    invalid_unicode_re = re.compile(invalid_unicode_no_surrogate)
+
+non_bmp_invalid_codepoints = {0x1FFFE, 0x1FFFF, 0x2FFFE, 0x2FFFF, 0x3FFFE,
+                              0x3FFFF, 0x4FFFE, 0x4FFFF, 0x5FFFE, 0x5FFFF,
+                              0x6FFFE, 0x6FFFF, 0x7FFFE, 0x7FFFF, 0x8FFFE,
+                              0x8FFFF, 0x9FFFE, 0x9FFFF, 0xAFFFE, 0xAFFFF,
+                              0xBFFFE, 0xBFFFF, 0xCFFFE, 0xCFFFF, 0xDFFFE,
+                              0xDFFFF, 0xEFFFE, 0xEFFFF, 0xFFFFE, 0xFFFFF,
+                              0x10FFFE, 0x10FFFF}
+
+ascii_punctuation_re = re.compile("[\u0009-\u000D\u0020-\u002F\u003A-\u0040\u005C\u005B-\u0060\u007B-\u007E]")
+
+# Cache for charsUntil()
+charsUntilRegEx = {}
+
+
+class BufferedStream(object):
+    """Buffering for streams that do not have buffering of their own
+
+    The buffer is implemented as a list of chunks on the assumption that
+    joining many strings will be slow since it is O(n**2)
+    """
+
+    def __init__(self, stream):
+        self.stream = stream
+        self.buffer = []
+        self.position = [-1, 0]  # chunk number, offset
+
+    def tell(self):
+        pos = 0
+        for chunk in self.buffer[:self.position[0]]:
+            pos += len(chunk)
+        pos += self.position[1]
+        return pos
+
+    def seek(self, pos):
+        assert pos <= self._bufferedBytes()
+        offset = pos
+        i = 0
+        while len(self.buffer[i]) < offset:
+            offset -= len(self.buffer[i])
+            i += 1
+        self.position = [i, offset]
+
+    def read(self, bytes):
+        if not self.buffer:
+            return self._readStream(bytes)
+        elif (self.position[0] == len(self.buffer) and
+              self.position[1] == len(self.buffer[-1])):
+            return self._readStream(bytes)
+        else:
+            return self._readFromBuffer(bytes)
+
+    def _bufferedBytes(self):
+        return sum([len(item) for item in self.buffer])
+
+    def _readStream(self, bytes):
+        data = self.stream.read(bytes)
+        self.buffer.append(data)
+        self.position[0] += 1
+        self.position[1] = len(data)
+        return data
+
+    def _readFromBuffer(self, bytes):
+        remainingBytes = bytes
+        rv = []
+        bufferIndex = self.position[0]
+        bufferOffset = self.position[1]
+        while bufferIndex < len(self.buffer) and remainingBytes != 0:
+            assert remainingBytes > 0
+            bufferedData = self.buffer[bufferIndex]
+
+            if remainingBytes <= len(bufferedData) - bufferOffset:
+                bytesToRead = remainingBytes
+                self.position = [bufferIndex, bufferOffset + bytesToRead]
+            else:
+                bytesToRead = len(bufferedData) - bufferOffset
+                self.position = [bufferIndex, len(bufferedData)]
+                bufferIndex += 1
+            rv.append(bufferedData[bufferOffset:bufferOffset + bytesToRead])
+            remainingBytes -= bytesToRead
+
+            bufferOffset = 0
+
+        if remainingBytes:
+            rv.append(self._readStream(remainingBytes))
+
+        return b"".join(rv)
+
+
+def HTMLInputStream(source, **kwargs):
+    # Work around Python bug #20007: read(0) closes the connection.
+    # http://bugs.python.org/issue20007
+    if (isinstance(source, http_client.HTTPResponse) or
+        # Also check for addinfourl wrapping HTTPResponse
+        (isinstance(source, urllib.response.addbase) and
+         isinstance(source.fp, http_client.HTTPResponse))):
+        isUnicode = False
+    elif hasattr(source, "read"):
+        isUnicode = isinstance(source.read(0), text_type)
+    else:
+        isUnicode = isinstance(source, text_type)
+
+    if isUnicode:
+        encodings = [x for x in kwargs if x.endswith("_encoding")]
+        if encodings:
+            raise TypeError("Cannot set an encoding with a unicode input, set %r" % encodings)
+
+        return HTMLUnicodeInputStream(source, **kwargs)
+    else:
+        return HTMLBinaryInputStream(source, **kwargs)
+
+
+class HTMLUnicodeInputStream(object):
+    """Provides a unicode stream of characters to the HTMLTokenizer.
+
+    This class takes care of character encoding and removing or replacing
+    incorrect byte-sequences and also provides column and line tracking.
+
+    """
+
+    _defaultChunkSize = 10240
+
+    def __init__(self, source):
+        """Initialises the HTMLInputStream.
+
+        HTMLInputStream(source, [encoding]) -> Normalized stream from source
+        for use by html5lib.
+
+        source can be either a file-object, local filename or a string.
+
+        The optional encoding parameter must be a string that indicates
+        the encoding.  If specified, that encoding will be used,
+        regardless of any BOM or later declaration (such as in a meta
+        element)
+
+        """
+
+        if not _utils.supports_lone_surrogates:
+            # Such platforms will have already checked for such
+            # surrogate errors, so no need to do this checking.
+            self.reportCharacterErrors = None
+        elif len("\U0010FFFF") == 1:
+            self.reportCharacterErrors = self.characterErrorsUCS4
+        else:
+            self.reportCharacterErrors = self.characterErrorsUCS2
+
+        # List of where new lines occur
+        self.newLines = [0]
+
+        self.charEncoding = (lookupEncoding("utf-8"), "certain")
+        self.dataStream = self.openStream(source)
+
+        self.reset()
+
+    def reset(self):
+        self.chunk = ""
+        self.chunkSize = 0
+        self.chunkOffset = 0
+        self.errors = []
+
+        # number of (complete) lines in previous chunks
+        self.prevNumLines = 0
+        # number of columns in the last line of the previous chunk
+        self.prevNumCols = 0
+
+        # Deal with CR LF and surrogates split over chunk boundaries
+        self._bufferedCharacter = None
+
+    def openStream(self, source):
+        """Produces a file object from source.
+
+        source can be either a file object, local filename or a string.
+
+        """
+        # Already a file object
+        if hasattr(source, 'read'):
+            stream = source
+        else:
+            stream = StringIO(source)
+
+        return stream
+
+    def _position(self, offset):
+        chunk = self.chunk
+        nLines = chunk.count('\n', 0, offset)
+        positionLine = self.prevNumLines + nLines
+        lastLinePos = chunk.rfind('\n', 0, offset)
+        if lastLinePos == -1:
+            positionColumn = self.prevNumCols + offset
+        else:
+            positionColumn = offset - (lastLinePos + 1)
+        return (positionLine, positionColumn)
+
+    def position(self):
+        """Returns (line, col) of the current position in the stream."""
+        line, col = self._position(self.chunkOffset)
+        return (line + 1, col)
+
+    def char(self):
+        """ Read one character from the stream or queue if available. Return
+            EOF when EOF is reached.
+        """
+        # Read a new chunk from the input stream if necessary
+        if self.chunkOffset >= self.chunkSize:
+            if not self.readChunk():
+                return EOF
+
+        chunkOffset = self.chunkOffset
+        char = self.chunk[chunkOffset]
+        self.chunkOffset = chunkOffset + 1
+
+        return char
+
+    def readChunk(self, chunkSize=None):
+        if chunkSize is None:
+            chunkSize = self._defaultChunkSize
+
+        self.prevNumLines, self.prevNumCols = self._position(self.chunkSize)
+
+        self.chunk = ""
+        self.chunkSize = 0
+        self.chunkOffset = 0
+
+        data = self.dataStream.read(chunkSize)
+
+        # Deal with CR LF and surrogates broken across chunks
+        if self._bufferedCharacter:
+            data = self._bufferedCharacter + data
+            self._bufferedCharacter = None
+        elif not data:
+            # We have no more data, bye-bye stream
+            return False
+
+        if len(data) > 1:
+            lastv = ord(data[-1])
+            if lastv == 0x0D or 0xD800 <= lastv <= 0xDBFF:
+                self._bufferedCharacter = data[-1]
+                data = data[:-1]
+
+        if self.reportCharacterErrors:
+            self.reportCharacterErrors(data)
+
+        # Replace invalid characters
+        data = data.replace("\r\n", "\n")
+        data = data.replace("\r", "\n")
+
+        self.chunk = data
+        self.chunkSize = len(data)
+
+        return True
+
+    def characterErrorsUCS4(self, data):
+        for _ in range(len(invalid_unicode_re.findall(data))):
+            self.errors.append("invalid-codepoint")
+
+    def characterErrorsUCS2(self, data):
+        # Someone picked the wrong compile option
+        # You lose
+        skip = False
+        for match in invalid_unicode_re.finditer(data):
+            if skip:
+                continue
+            codepoint = ord(match.group())
+            pos = match.start()
+            # Pretty sure there should be endianness issues here
+            if _utils.isSurrogatePair(data[pos:pos + 2]):
+                # We have a surrogate pair!
+                char_val = _utils.surrogatePairToCodepoint(data[pos:pos + 2])
+                if char_val in non_bmp_invalid_codepoints:
+                    self.errors.append("invalid-codepoint")
+                skip = True
+            elif (codepoint >= 0xD800 and codepoint <= 0xDFFF and
+                  pos == len(data) - 1):
+                self.errors.append("invalid-codepoint")
+            else:
+                skip = False
+                self.errors.append("invalid-codepoint")
+
+    def charsUntil(self, characters, opposite=False):
+        """ Returns a string of characters from the stream up to but not
+        including any character in 'characters' or EOF. 'characters' must be
+        a container that supports the 'in' method and iteration over its
+        characters.
+        """
+
+        # Use a cache of regexps to find the required characters
+        try:
+            chars = charsUntilRegEx[(characters, opposite)]
+        except KeyError:
+            if __debug__:
+                for c in characters:
+                    assert(ord(c) < 128)
+            regex = "".join(["\\x%02x" % ord(c) for c in characters])
+            if not opposite:
+                regex = "^%s" % regex
+            chars = charsUntilRegEx[(characters, opposite)] = re.compile("[%s]+" % regex)
+
+        rv = []
+
+        while True:
+            # Find the longest matching prefix
+            m = chars.match(self.chunk, self.chunkOffset)
+            if m is None:
+                # If nothing matched, and it wasn't because we ran out of chunk,
+                # then stop
+                if self.chunkOffset != self.chunkSize:
+                    break
+            else:
+                end = m.end()
+                # If not the whole chunk matched, return everything
+                # up to the part that didn't match
+                if end != self.chunkSize:
+                    rv.append(self.chunk[self.chunkOffset:end])
+                    self.chunkOffset = end
+                    break
+            # If the whole remainder of the chunk matched,
+            # use it all and read the next chunk
+            rv.append(self.chunk[self.chunkOffset:])
+            if not self.readChunk():
+                # Reached EOF
+                break
+
+        r = "".join(rv)
+        return r
+
+    def unget(self, char):
+        # Only one character is allowed to be ungotten at once - it must
+        # be consumed again before any further call to unget
+        if char is not EOF:
+            if self.chunkOffset == 0:
+                # unget is called quite rarely, so it's a good idea to do
+                # more work here if it saves a bit of work in the frequently
+                # called char and charsUntil.
+                # So, just prepend the ungotten character onto the current
+                # chunk:
+                self.chunk = char + self.chunk
+                self.chunkSize += 1
+            else:
+                self.chunkOffset -= 1
+                assert self.chunk[self.chunkOffset] == char
+
+
+class HTMLBinaryInputStream(HTMLUnicodeInputStream):
+    """Provides a unicode stream of characters to the HTMLTokenizer.
+
+    This class takes care of character encoding and removing or replacing
+    incorrect byte-sequences and also provides column and line tracking.
+
+    """
+
+    def __init__(self, source, override_encoding=None, transport_encoding=None,
+                 same_origin_parent_encoding=None, likely_encoding=None,
+                 default_encoding="windows-1252", useChardet=True):
+        """Initialises the HTMLInputStream.
+
+        HTMLInputStream(source, [encoding]) -> Normalized stream from source
+        for use by html5lib.
+
+        source can be either a file-object, local filename or a string.
+
+        The optional encoding parameter must be a string that indicates
+        the encoding.  If specified, that encoding will be used,
+        regardless of any BOM or later declaration (such as in a meta
+        element)
+
+        """
+        # Raw Stream - for unicode objects this will encode to utf-8 and set
+        #              self.charEncoding as appropriate
+        self.rawStream = self.openStream(source)
+
+        HTMLUnicodeInputStream.__init__(self, self.rawStream)
+
+        # Encoding Information
+        # Number of bytes to use when looking for a meta element with
+        # encoding information
+        self.numBytesMeta = 1024
+        # Number of bytes to use when using detecting encoding using chardet
+        self.numBytesChardet = 100
+        # Things from args
+        self.override_encoding = override_encoding
+        self.transport_encoding = transport_encoding
+        self.same_origin_parent_encoding = same_origin_parent_encoding
+        self.likely_encoding = likely_encoding
+        self.default_encoding = default_encoding
+
+        # Determine encoding
+        self.charEncoding = self.determineEncoding(useChardet)
+        assert self.charEncoding[0] is not None
+
+        # Call superclass
+        self.reset()
+
+    def reset(self):
+        self.dataStream = self.charEncoding[0].codec_info.streamreader(self.rawStream, 'replace')
+        HTMLUnicodeInputStream.reset(self)
+
+    def openStream(self, source):
+        """Produces a file object from source.
+
+        source can be either a file object, local filename or a string.
+
+        """
+        # Already a file object
+        if hasattr(source, 'read'):
+            stream = source
+        else:
+            stream = BytesIO(source)
+
+        try:
+            stream.seek(stream.tell())
+        except Exception:
+            stream = BufferedStream(stream)
+
+        return stream
+
+    def determineEncoding(self, chardet=True):
+        # BOMs take precedence over everything
+        # This will also read past the BOM if present
+        charEncoding = self.detectBOM(), "certain"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # If we've been overridden, we've been overridden
+        charEncoding = lookupEncoding(self.override_encoding), "certain"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Now check the transport layer
+        charEncoding = lookupEncoding(self.transport_encoding), "certain"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Look for meta elements with encoding information
+        charEncoding = self.detectEncodingMeta(), "tentative"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Parent document encoding
+        charEncoding = lookupEncoding(self.same_origin_parent_encoding), "tentative"
+        if charEncoding[0] is not None and not charEncoding[0].name.startswith("utf-16"):
+            return charEncoding
+
+        # "likely" encoding
+        charEncoding = lookupEncoding(self.likely_encoding), "tentative"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Guess with chardet, if available
+        if chardet:
+            try:
+                from pip._vendor.chardet.universaldetector import UniversalDetector
+            except ImportError:
+                pass
+            else:
+                buffers = []
+                detector = UniversalDetector()
+                while not detector.done:
+                    buffer = self.rawStream.read(self.numBytesChardet)
+                    assert isinstance(buffer, bytes)
+                    if not buffer:
+                        break
+                    buffers.append(buffer)
+                    detector.feed(buffer)
+                detector.close()
+                encoding = lookupEncoding(detector.result['encoding'])
+                self.rawStream.seek(0)
+                if encoding is not None:
+                    return encoding, "tentative"
+
+        # Try the default encoding
+        charEncoding = lookupEncoding(self.default_encoding), "tentative"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Fallback to html5lib's default if even that hasn't worked
+        return lookupEncoding("windows-1252"), "tentative"
+
+    def changeEncoding(self, newEncoding):
+        assert self.charEncoding[1] != "certain"
+        newEncoding = lookupEncoding(newEncoding)
+        if newEncoding is None:
+            return
+        if newEncoding.name in ("utf-16be", "utf-16le"):
+            newEncoding = lookupEncoding("utf-8")
+            assert newEncoding is not None
+        elif newEncoding == self.charEncoding[0]:
+            self.charEncoding = (self.charEncoding[0], "certain")
+        else:
+            self.rawStream.seek(0)
+            self.charEncoding = (newEncoding, "certain")
+            self.reset()
+            raise _ReparseException("Encoding changed from %s to %s" % (self.charEncoding[0], newEncoding))
+
+    def detectBOM(self):
+        """Attempts to detect at BOM at the start of the stream. If
+        an encoding can be determined from the BOM return the name of the
+        encoding otherwise return None"""
+        bomDict = {
+            codecs.BOM_UTF8: 'utf-8',
+            codecs.BOM_UTF16_LE: 'utf-16le', codecs.BOM_UTF16_BE: 'utf-16be',
+            codecs.BOM_UTF32_LE: 'utf-32le', codecs.BOM_UTF32_BE: 'utf-32be'
+        }
+
+        # Go to beginning of file and read in 4 bytes
+        string = self.rawStream.read(4)
+        assert isinstance(string, bytes)
+
+        # Try detecting the BOM using bytes from the string
+        encoding = bomDict.get(string[:3])         # UTF-8
+        seek = 3
+        if not encoding:
+            # Need to detect UTF-32 before UTF-16
+            encoding = bomDict.get(string)         # UTF-32
+            seek = 4
+            if not encoding:
+                encoding = bomDict.get(string[:2])  # UTF-16
+                seek = 2
+
+        # Set the read position past the BOM if one was found, otherwise
+        # set it to the start of the stream
+        if encoding:
+            self.rawStream.seek(seek)
+            return lookupEncoding(encoding)
+        else:
+            self.rawStream.seek(0)
+            return None
+
+    def detectEncodingMeta(self):
+        """Report the encoding declared by the meta element
+        """
+        buffer = self.rawStream.read(self.numBytesMeta)
+        assert isinstance(buffer, bytes)
+        parser = EncodingParser(buffer)
+        self.rawStream.seek(0)
+        encoding = parser.getEncoding()
+
+        if encoding is not None and encoding.name in ("utf-16be", "utf-16le"):
+            encoding = lookupEncoding("utf-8")
+
+        return encoding
+
+
+class EncodingBytes(bytes):
+    """String-like object with an associated position and various extra methods
+    If the position is ever greater than the string length then an exception is
+    raised"""
+    def __new__(self, value):
+        assert isinstance(value, bytes)
+        return bytes.__new__(self, value.lower())
+
+    def __init__(self, value):
+        # pylint:disable=unused-argument
+        self._position = -1
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        p = self._position = self._position + 1
+        if p >= len(self):
+            raise StopIteration
+        elif p < 0:
+            raise TypeError
+        return self[p:p + 1]
+
+    def next(self):
+        # Py2 compat
+        return self.__next__()
+
+    def previous(self):
+        p = self._position
+        if p >= len(self):
+            raise StopIteration
+        elif p < 0:
+            raise TypeError
+        self._position = p = p - 1
+        return self[p:p + 1]
+
+    def setPosition(self, position):
+        if self._position >= len(self):
+            raise StopIteration
+        self._position = position
+
+    def getPosition(self):
+        if self._position >= len(self):
+            raise StopIteration
+        if self._position >= 0:
+            return self._position
+        else:
+            return None
+
+    position = property(getPosition, setPosition)
+
+    def getCurrentByte(self):
+        return self[self.position:self.position + 1]
+
+    currentByte = property(getCurrentByte)
+
+    def skip(self, chars=spaceCharactersBytes):
+        """Skip past a list of characters"""
+        p = self.position               # use property for the error-checking
+        while p < len(self):
+            c = self[p:p + 1]
+            if c not in chars:
+                self._position = p
+                return c
+            p += 1
+        self._position = p
+        return None
+
+    def skipUntil(self, chars):
+        p = self.position
+        while p < len(self):
+            c = self[p:p + 1]
+            if c in chars:
+                self._position = p
+                return c
+            p += 1
+        self._position = p
+        return None
+
+    def matchBytes(self, bytes):
+        """Look for a sequence of bytes at the start of a string. If the bytes
+        are found return True and advance the position to the byte after the
+        match. Otherwise return False and leave the position alone"""
+        rv = self.startswith(bytes, self.position)
+        if rv:
+            self.position += len(bytes)
+        return rv
+
+    def jumpTo(self, bytes):
+        """Look for the next sequence of bytes matching a given sequence. If
+        a match is found advance the position to the last byte of the match"""
+        try:
+            self._position = self.index(bytes, self.position) + len(bytes) - 1
+        except ValueError:
+            raise StopIteration
+        return True
+
+
+class EncodingParser(object):
+    """Mini parser for detecting character encoding from meta elements"""
+
+    def __init__(self, data):
+        """string - the data to work on for encoding detection"""
+        self.data = EncodingBytes(data)
+        self.encoding = None
+
+    def getEncoding(self):
+        if b"")
+
+    def handleMeta(self):
+        if self.data.currentByte not in spaceCharactersBytes:
+            # if we have ")
+
+    def getAttribute(self):
+        """Return a name,value pair for the next attribute in the stream,
+        if one is found, or None"""
+        data = self.data
+        # Step 1 (skip chars)
+        c = data.skip(spaceCharactersBytes | frozenset([b"/"]))
+        assert c is None or len(c) == 1
+        # Step 2
+        if c in (b">", None):
+            return None
+        # Step 3
+        attrName = []
+        attrValue = []
+        # Step 4 attribute name
+        while True:
+            if c == b"=" and attrName:
+                break
+            elif c in spaceCharactersBytes:
+                # Step 6!
+                c = data.skip()
+                break
+            elif c in (b"/", b">"):
+                return b"".join(attrName), b""
+            elif c in asciiUppercaseBytes:
+                attrName.append(c.lower())
+            elif c is None:
+                return None
+            else:
+                attrName.append(c)
+            # Step 5
+            c = next(data)
+        # Step 7
+        if c != b"=":
+            data.previous()
+            return b"".join(attrName), b""
+        # Step 8
+        next(data)
+        # Step 9
+        c = data.skip()
+        # Step 10
+        if c in (b"'", b'"'):
+            # 10.1
+            quoteChar = c
+            while True:
+                # 10.2
+                c = next(data)
+                # 10.3
+                if c == quoteChar:
+                    next(data)
+                    return b"".join(attrName), b"".join(attrValue)
+                # 10.4
+                elif c in asciiUppercaseBytes:
+                    attrValue.append(c.lower())
+                # 10.5
+                else:
+                    attrValue.append(c)
+        elif c == b">":
+            return b"".join(attrName), b""
+        elif c in asciiUppercaseBytes:
+            attrValue.append(c.lower())
+        elif c is None:
+            return None
+        else:
+            attrValue.append(c)
+        # Step 11
+        while True:
+            c = next(data)
+            if c in spacesAngleBrackets:
+                return b"".join(attrName), b"".join(attrValue)
+            elif c in asciiUppercaseBytes:
+                attrValue.append(c.lower())
+            elif c is None:
+                return None
+            else:
+                attrValue.append(c)
+
+
+class ContentAttrParser(object):
+    def __init__(self, data):
+        assert isinstance(data, bytes)
+        self.data = data
+
+    def parse(self):
+        try:
+            # Check if the attr name is charset
+            # otherwise return
+            self.data.jumpTo(b"charset")
+            self.data.position += 1
+            self.data.skip()
+            if not self.data.currentByte == b"=":
+                # If there is no = sign keep looking for attrs
+                return None
+            self.data.position += 1
+            self.data.skip()
+            # Look for an encoding between matching quote marks
+            if self.data.currentByte in (b'"', b"'"):
+                quoteMark = self.data.currentByte
+                self.data.position += 1
+                oldPosition = self.data.position
+                if self.data.jumpTo(quoteMark):
+                    return self.data[oldPosition:self.data.position]
+                else:
+                    return None
+            else:
+                # Unquoted value
+                oldPosition = self.data.position
+                try:
+                    self.data.skipUntil(spaceCharactersBytes)
+                    return self.data[oldPosition:self.data.position]
+                except StopIteration:
+                    # Return the whole remaining value
+                    return self.data[oldPosition:]
+        except StopIteration:
+            return None
+
+
+def lookupEncoding(encoding):
+    """Return the python codec name corresponding to an encoding or None if the
+    string doesn't correspond to a valid encoding."""
+    if isinstance(encoding, bytes):
+        try:
+            encoding = encoding.decode("ascii")
+        except UnicodeDecodeError:
+            return None
+
+    if encoding is not None:
+        try:
+            return webencodings.lookup(encoding)
+        except AttributeError:
+            return None
+    else:
+        return None
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_tokenizer.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_tokenizer.py
new file mode 100644
index 0000000..5f00253
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_tokenizer.py
@@ -0,0 +1,1735 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from pip._vendor.six import unichr as chr
+
+from collections import deque, OrderedDict
+from sys import version_info
+
+from .constants import spaceCharacters
+from .constants import entities
+from .constants import asciiLetters, asciiUpper2Lower
+from .constants import digits, hexDigits, EOF
+from .constants import tokenTypes, tagTokenTypes
+from .constants import replacementCharacters
+
+from ._inputstream import HTMLInputStream
+
+from ._trie import Trie
+
+entitiesTrie = Trie(entities)
+
+if version_info >= (3, 7):
+    attributeMap = dict
+else:
+    attributeMap = OrderedDict
+
+
+class HTMLTokenizer(object):
+    """ This class takes care of tokenizing HTML.
+
+    * self.currentToken
+      Holds the token that is currently being processed.
+
+    * self.state
+      Holds a reference to the method to be invoked... XXX
+
+    * self.stream
+      Points to HTMLInputStream object.
+    """
+
+    def __init__(self, stream, parser=None, **kwargs):
+
+        self.stream = HTMLInputStream(stream, **kwargs)
+        self.parser = parser
+
+        # Setup the initial tokenizer state
+        self.escapeFlag = False
+        self.lastFourChars = []
+        self.state = self.dataState
+        self.escape = False
+
+        # The current token being created
+        self.currentToken = None
+        super(HTMLTokenizer, self).__init__()
+
+    def __iter__(self):
+        """ This is where the magic happens.
+
+        We do our usually processing through the states and when we have a token
+        to return we yield the token which pauses processing until the next token
+        is requested.
+        """
+        self.tokenQueue = deque([])
+        # Start processing. When EOF is reached self.state will return False
+        # instead of True and the loop will terminate.
+        while self.state():
+            while self.stream.errors:
+                yield {"type": tokenTypes["ParseError"], "data": self.stream.errors.pop(0)}
+            while self.tokenQueue:
+                yield self.tokenQueue.popleft()
+
+    def consumeNumberEntity(self, isHex):
+        """This function returns either U+FFFD or the character based on the
+        decimal or hexadecimal representation. It also discards ";" if present.
+        If not present self.tokenQueue.append({"type": tokenTypes["ParseError"]}) is invoked.
+        """
+
+        allowed = digits
+        radix = 10
+        if isHex:
+            allowed = hexDigits
+            radix = 16
+
+        charStack = []
+
+        # Consume all the characters that are in range while making sure we
+        # don't hit an EOF.
+        c = self.stream.char()
+        while c in allowed and c is not EOF:
+            charStack.append(c)
+            c = self.stream.char()
+
+        # Convert the set of characters consumed to an int.
+        charAsInt = int("".join(charStack), radix)
+
+        # Certain characters get replaced with others
+        if charAsInt in replacementCharacters:
+            char = replacementCharacters[charAsInt]
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "illegal-codepoint-for-numeric-entity",
+                                    "datavars": {"charAsInt": charAsInt}})
+        elif ((0xD800 <= charAsInt <= 0xDFFF) or
+              (charAsInt > 0x10FFFF)):
+            char = "\uFFFD"
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "illegal-codepoint-for-numeric-entity",
+                                    "datavars": {"charAsInt": charAsInt}})
+        else:
+            # Should speed up this check somehow (e.g. move the set to a constant)
+            if ((0x0001 <= charAsInt <= 0x0008) or
+                (0x000E <= charAsInt <= 0x001F) or
+                (0x007F <= charAsInt <= 0x009F) or
+                (0xFDD0 <= charAsInt <= 0xFDEF) or
+                charAsInt in frozenset([0x000B, 0xFFFE, 0xFFFF, 0x1FFFE,
+                                        0x1FFFF, 0x2FFFE, 0x2FFFF, 0x3FFFE,
+                                        0x3FFFF, 0x4FFFE, 0x4FFFF, 0x5FFFE,
+                                        0x5FFFF, 0x6FFFE, 0x6FFFF, 0x7FFFE,
+                                        0x7FFFF, 0x8FFFE, 0x8FFFF, 0x9FFFE,
+                                        0x9FFFF, 0xAFFFE, 0xAFFFF, 0xBFFFE,
+                                        0xBFFFF, 0xCFFFE, 0xCFFFF, 0xDFFFE,
+                                        0xDFFFF, 0xEFFFE, 0xEFFFF, 0xFFFFE,
+                                        0xFFFFF, 0x10FFFE, 0x10FFFF])):
+                self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                        "data":
+                                        "illegal-codepoint-for-numeric-entity",
+                                        "datavars": {"charAsInt": charAsInt}})
+            try:
+                # Try/except needed as UCS-2 Python builds' unichar only works
+                # within the BMP.
+                char = chr(charAsInt)
+            except ValueError:
+                v = charAsInt - 0x10000
+                char = chr(0xD800 | (v >> 10)) + chr(0xDC00 | (v & 0x3FF))
+
+        # Discard the ; if present. Otherwise, put it back on the queue and
+        # invoke parseError on parser.
+        if c != ";":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "numeric-entity-without-semicolon"})
+            self.stream.unget(c)
+
+        return char
+
+    def consumeEntity(self, allowedChar=None, fromAttribute=False):
+        # Initialise to the default output for when no entity is matched
+        output = "&"
+
+        charStack = [self.stream.char()]
+        if (charStack[0] in spaceCharacters or charStack[0] in (EOF, "<", "&") or
+                (allowedChar is not None and allowedChar == charStack[0])):
+            self.stream.unget(charStack[0])
+
+        elif charStack[0] == "#":
+            # Read the next character to see if it's hex or decimal
+            hex = False
+            charStack.append(self.stream.char())
+            if charStack[-1] in ("x", "X"):
+                hex = True
+                charStack.append(self.stream.char())
+
+            # charStack[-1] should be the first digit
+            if (hex and charStack[-1] in hexDigits) \
+                    or (not hex and charStack[-1] in digits):
+                # At least one digit found, so consume the whole number
+                self.stream.unget(charStack[-1])
+                output = self.consumeNumberEntity(hex)
+            else:
+                # No digits found
+                self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                        "data": "expected-numeric-entity"})
+                self.stream.unget(charStack.pop())
+                output = "&" + "".join(charStack)
+
+        else:
+            # At this point in the process might have named entity. Entities
+            # are stored in the global variable "entities".
+            #
+            # Consume characters and compare to these to a substring of the
+            # entity names in the list until the substring no longer matches.
+            while (charStack[-1] is not EOF):
+                if not entitiesTrie.has_keys_with_prefix("".join(charStack)):
+                    break
+                charStack.append(self.stream.char())
+
+            # At this point we have a string that starts with some characters
+            # that may match an entity
+            # Try to find the longest entity the string will match to take care
+            # of ¬i for instance.
+            try:
+                entityName = entitiesTrie.longest_prefix("".join(charStack[:-1]))
+                entityLength = len(entityName)
+            except KeyError:
+                entityName = None
+
+            if entityName is not None:
+                if entityName[-1] != ";":
+                    self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                            "named-entity-without-semicolon"})
+                if (entityName[-1] != ";" and fromAttribute and
+                    (charStack[entityLength] in asciiLetters or
+                     charStack[entityLength] in digits or
+                     charStack[entityLength] == "=")):
+                    self.stream.unget(charStack.pop())
+                    output = "&" + "".join(charStack)
+                else:
+                    output = entities[entityName]
+                    self.stream.unget(charStack.pop())
+                    output += "".join(charStack[entityLength:])
+            else:
+                self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                        "expected-named-entity"})
+                self.stream.unget(charStack.pop())
+                output = "&" + "".join(charStack)
+
+        if fromAttribute:
+            self.currentToken["data"][-1][1] += output
+        else:
+            if output in spaceCharacters:
+                tokenType = "SpaceCharacters"
+            else:
+                tokenType = "Characters"
+            self.tokenQueue.append({"type": tokenTypes[tokenType], "data": output})
+
+    def processEntityInAttribute(self, allowedChar):
+        """This method replaces the need for "entityInAttributeValueState".
+        """
+        self.consumeEntity(allowedChar=allowedChar, fromAttribute=True)
+
+    def emitCurrentToken(self):
+        """This method is a generic handler for emitting the tags. It also sets
+        the state to "data" because that's what's needed after a token has been
+        emitted.
+        """
+        token = self.currentToken
+        # Add token to the queue to be yielded
+        if (token["type"] in tagTokenTypes):
+            token["name"] = token["name"].translate(asciiUpper2Lower)
+            if token["type"] == tokenTypes["StartTag"]:
+                raw = token["data"]
+                data = attributeMap(raw)
+                if len(raw) > len(data):
+                    # we had some duplicated attribute, fix so first wins
+                    data.update(raw[::-1])
+                token["data"] = data
+
+            if token["type"] == tokenTypes["EndTag"]:
+                if token["data"]:
+                    self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                            "data": "attributes-in-end-tag"})
+                if token["selfClosing"]:
+                    self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                            "data": "self-closing-flag-on-end-tag"})
+        self.tokenQueue.append(token)
+        self.state = self.dataState
+
+    # Below are the various tokenizer states worked out.
+    def dataState(self):
+        data = self.stream.char()
+        if data == "&":
+            self.state = self.entityDataState
+        elif data == "<":
+            self.state = self.tagOpenState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\u0000"})
+        elif data is EOF:
+            # Tokenization ends.
+            return False
+        elif data in spaceCharacters:
+            # Directly after emitting a token you switch back to the "data
+            # state". At that point spaceCharacters are important so they are
+            # emitted separately.
+            self.tokenQueue.append({"type": tokenTypes["SpaceCharacters"], "data":
+                                    data + self.stream.charsUntil(spaceCharacters, True)})
+            # No need to update lastFourChars here, since the first space will
+            # have already been appended to lastFourChars and will have broken
+            # any  sequences
+        else:
+            chars = self.stream.charsUntil(("&", "<", "\u0000"))
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + chars})
+        return True
+
+    def entityDataState(self):
+        self.consumeEntity()
+        self.state = self.dataState
+        return True
+
+    def rcdataState(self):
+        data = self.stream.char()
+        if data == "&":
+            self.state = self.characterReferenceInRcdata
+        elif data == "<":
+            self.state = self.rcdataLessThanSignState
+        elif data == EOF:
+            # Tokenization ends.
+            return False
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        elif data in spaceCharacters:
+            # Directly after emitting a token you switch back to the "data
+            # state". At that point spaceCharacters are important so they are
+            # emitted separately.
+            self.tokenQueue.append({"type": tokenTypes["SpaceCharacters"], "data":
+                                    data + self.stream.charsUntil(spaceCharacters, True)})
+            # No need to update lastFourChars here, since the first space will
+            # have already been appended to lastFourChars and will have broken
+            # any  sequences
+        else:
+            chars = self.stream.charsUntil(("&", "<", "\u0000"))
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + chars})
+        return True
+
+    def characterReferenceInRcdata(self):
+        self.consumeEntity()
+        self.state = self.rcdataState
+        return True
+
+    def rawtextState(self):
+        data = self.stream.char()
+        if data == "<":
+            self.state = self.rawtextLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        elif data == EOF:
+            # Tokenization ends.
+            return False
+        else:
+            chars = self.stream.charsUntil(("<", "\u0000"))
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + chars})
+        return True
+
+    def scriptDataState(self):
+        data = self.stream.char()
+        if data == "<":
+            self.state = self.scriptDataLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        elif data == EOF:
+            # Tokenization ends.
+            return False
+        else:
+            chars = self.stream.charsUntil(("<", "\u0000"))
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + chars})
+        return True
+
+    def plaintextState(self):
+        data = self.stream.char()
+        if data == EOF:
+            # Tokenization ends.
+            return False
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + self.stream.charsUntil("\u0000")})
+        return True
+
+    def tagOpenState(self):
+        data = self.stream.char()
+        if data == "!":
+            self.state = self.markupDeclarationOpenState
+        elif data == "/":
+            self.state = self.closeTagOpenState
+        elif data in asciiLetters:
+            self.currentToken = {"type": tokenTypes["StartTag"],
+                                 "name": data, "data": [],
+                                 "selfClosing": False,
+                                 "selfClosingAcknowledged": False}
+            self.state = self.tagNameState
+        elif data == ">":
+            # XXX In theory it could be something besides a tag name. But
+            # do we really care?
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-tag-name-but-got-right-bracket"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<>"})
+            self.state = self.dataState
+        elif data == "?":
+            # XXX In theory it could be something besides a tag name. But
+            # do we really care?
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-tag-name-but-got-question-mark"})
+            self.stream.unget(data)
+            self.state = self.bogusCommentState
+        else:
+            # XXX
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-tag-name"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.stream.unget(data)
+            self.state = self.dataState
+        return True
+
+    def closeTagOpenState(self):
+        data = self.stream.char()
+        if data in asciiLetters:
+            self.currentToken = {"type": tokenTypes["EndTag"], "name": data,
+                                 "data": [], "selfClosing": False}
+            self.state = self.tagNameState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-closing-tag-but-got-right-bracket"})
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-closing-tag-but-got-eof"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "":
+            self.emitCurrentToken()
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-tag-name"})
+            self.state = self.dataState
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["name"] += "\uFFFD"
+        else:
+            self.currentToken["name"] += data
+            # (Don't use charsUntil here, because tag names are
+            # very short and it's faster to not do anything fancy)
+        return True
+
+    def rcdataLessThanSignState(self):
+        data = self.stream.char()
+        if data == "/":
+            self.temporaryBuffer = ""
+            self.state = self.rcdataEndTagOpenState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.stream.unget(data)
+            self.state = self.rcdataState
+        return True
+
+    def rcdataEndTagOpenState(self):
+        data = self.stream.char()
+        if data in asciiLetters:
+            self.temporaryBuffer += data
+            self.state = self.rcdataEndTagNameState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.emitCurrentToken()
+            self.state = self.dataState
+        elif data in asciiLetters:
+            self.temporaryBuffer += data
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.emitCurrentToken()
+            self.state = self.dataState
+        elif data in asciiLetters:
+            self.temporaryBuffer += data
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.emitCurrentToken()
+            self.state = self.dataState
+        elif data in asciiLetters:
+            self.temporaryBuffer += data
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": ">"})
+            self.state = self.scriptDataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+            self.state = self.scriptDataEscapedState
+        elif data == EOF:
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.state = self.scriptDataEscapedState
+        return True
+
+    def scriptDataEscapedLessThanSignState(self):
+        data = self.stream.char()
+        if data == "/":
+            self.temporaryBuffer = ""
+            self.state = self.scriptDataEscapedEndTagOpenState
+        elif data in asciiLetters:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<" + data})
+            self.temporaryBuffer = data
+            self.state = self.scriptDataDoubleEscapeStartState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.stream.unget(data)
+            self.state = self.scriptDataEscapedState
+        return True
+
+    def scriptDataEscapedEndTagOpenState(self):
+        data = self.stream.char()
+        if data in asciiLetters:
+            self.temporaryBuffer = data
+            self.state = self.scriptDataEscapedEndTagNameState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.emitCurrentToken()
+            self.state = self.dataState
+        elif data in asciiLetters:
+            self.temporaryBuffer += data
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": ""))):
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            if self.temporaryBuffer.lower() == "script":
+                self.state = self.scriptDataDoubleEscapedState
+            else:
+                self.state = self.scriptDataEscapedState
+        elif data in asciiLetters:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.temporaryBuffer += data
+        else:
+            self.stream.unget(data)
+            self.state = self.scriptDataEscapedState
+        return True
+
+    def scriptDataDoubleEscapedState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+            self.state = self.scriptDataDoubleEscapedDashState
+        elif data == "<":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.state = self.scriptDataDoubleEscapedLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        elif data == EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-script-in-script"})
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+        return True
+
+    def scriptDataDoubleEscapedDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+            self.state = self.scriptDataDoubleEscapedDashDashState
+        elif data == "<":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.state = self.scriptDataDoubleEscapedLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+            self.state = self.scriptDataDoubleEscapedState
+        elif data == EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-script-in-script"})
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.state = self.scriptDataDoubleEscapedState
+        return True
+
+    def scriptDataDoubleEscapedDashDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+        elif data == "<":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.state = self.scriptDataDoubleEscapedLessThanSignState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": ">"})
+            self.state = self.scriptDataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+            self.state = self.scriptDataDoubleEscapedState
+        elif data == EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-script-in-script"})
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.state = self.scriptDataDoubleEscapedState
+        return True
+
+    def scriptDataDoubleEscapedLessThanSignState(self):
+        data = self.stream.char()
+        if data == "/":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "/"})
+            self.temporaryBuffer = ""
+            self.state = self.scriptDataDoubleEscapeEndState
+        else:
+            self.stream.unget(data)
+            self.state = self.scriptDataDoubleEscapedState
+        return True
+
+    def scriptDataDoubleEscapeEndState(self):
+        data = self.stream.char()
+        if data in (spaceCharacters | frozenset(("/", ">"))):
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            if self.temporaryBuffer.lower() == "script":
+                self.state = self.scriptDataEscapedState
+            else:
+                self.state = self.scriptDataDoubleEscapedState
+        elif data in asciiLetters:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.temporaryBuffer += data
+        else:
+            self.stream.unget(data)
+            self.state = self.scriptDataDoubleEscapedState
+        return True
+
+    def beforeAttributeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.stream.charsUntil(spaceCharacters, True)
+        elif data in asciiLetters:
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        elif data == ">":
+            self.emitCurrentToken()
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data in ("'", '"', "=", "<"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "invalid-character-in-attribute-name"})
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"].append(["\uFFFD", ""])
+            self.state = self.attributeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-attribute-name-but-got-eof"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        return True
+
+    def attributeNameState(self):
+        data = self.stream.char()
+        leavingThisState = True
+        emitToken = False
+        if data == "=":
+            self.state = self.beforeAttributeValueState
+        elif data in asciiLetters:
+            self.currentToken["data"][-1][0] += data +\
+                self.stream.charsUntil(asciiLetters, True)
+            leavingThisState = False
+        elif data == ">":
+            # XXX If we emit here the attributes are converted to a dict
+            # without being checked and when the code below runs we error
+            # because data is a dict not a list
+            emitToken = True
+        elif data in spaceCharacters:
+            self.state = self.afterAttributeNameState
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][0] += "\uFFFD"
+            leavingThisState = False
+        elif data in ("'", '"', "<"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data":
+                                    "invalid-character-in-attribute-name"})
+            self.currentToken["data"][-1][0] += data
+            leavingThisState = False
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "eof-in-attribute-name"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][0] += data
+            leavingThisState = False
+
+        if leavingThisState:
+            # Attributes are not dropped at this stage. That happens when the
+            # start tag token is emitted so values can still be safely appended
+            # to attributes, but we do want to report the parse error in time.
+            self.currentToken["data"][-1][0] = (
+                self.currentToken["data"][-1][0].translate(asciiUpper2Lower))
+            for name, _ in self.currentToken["data"][:-1]:
+                if self.currentToken["data"][-1][0] == name:
+                    self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                            "duplicate-attribute"})
+                    break
+            # XXX Fix for above XXX
+            if emitToken:
+                self.emitCurrentToken()
+        return True
+
+    def afterAttributeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.stream.charsUntil(spaceCharacters, True)
+        elif data == "=":
+            self.state = self.beforeAttributeValueState
+        elif data == ">":
+            self.emitCurrentToken()
+        elif data in asciiLetters:
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"].append(["\uFFFD", ""])
+            self.state = self.attributeNameState
+        elif data in ("'", '"', "<"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "invalid-character-after-attribute-name"})
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-end-of-tag-but-got-eof"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        return True
+
+    def beforeAttributeValueState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.stream.charsUntil(spaceCharacters, True)
+        elif data == "\"":
+            self.state = self.attributeValueDoubleQuotedState
+        elif data == "&":
+            self.state = self.attributeValueUnQuotedState
+            self.stream.unget(data)
+        elif data == "'":
+            self.state = self.attributeValueSingleQuotedState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-attribute-value-but-got-right-bracket"})
+            self.emitCurrentToken()
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][1] += "\uFFFD"
+            self.state = self.attributeValueUnQuotedState
+        elif data in ("=", "<", "`"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "equals-in-unquoted-attribute-value"})
+            self.currentToken["data"][-1][1] += data
+            self.state = self.attributeValueUnQuotedState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-attribute-value-but-got-eof"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][1] += data
+            self.state = self.attributeValueUnQuotedState
+        return True
+
+    def attributeValueDoubleQuotedState(self):
+        data = self.stream.char()
+        if data == "\"":
+            self.state = self.afterAttributeValueState
+        elif data == "&":
+            self.processEntityInAttribute('"')
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][1] += "\uFFFD"
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-attribute-value-double-quote"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][1] += data +\
+                self.stream.charsUntil(("\"", "&", "\u0000"))
+        return True
+
+    def attributeValueSingleQuotedState(self):
+        data = self.stream.char()
+        if data == "'":
+            self.state = self.afterAttributeValueState
+        elif data == "&":
+            self.processEntityInAttribute("'")
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][1] += "\uFFFD"
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-attribute-value-single-quote"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][1] += data +\
+                self.stream.charsUntil(("'", "&", "\u0000"))
+        return True
+
+    def attributeValueUnQuotedState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeAttributeNameState
+        elif data == "&":
+            self.processEntityInAttribute(">")
+        elif data == ">":
+            self.emitCurrentToken()
+        elif data in ('"', "'", "=", "<", "`"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-character-in-unquoted-attribute-value"})
+            self.currentToken["data"][-1][1] += data
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][1] += "\uFFFD"
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-attribute-value-no-quotes"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][1] += data + self.stream.charsUntil(
+                frozenset(("&", ">", '"', "'", "=", "<", "`", "\u0000")) | spaceCharacters)
+        return True
+
+    def afterAttributeValueState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeAttributeNameState
+        elif data == ">":
+            self.emitCurrentToken()
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-EOF-after-attribute-value"})
+            self.stream.unget(data)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-character-after-attribute-value"})
+            self.stream.unget(data)
+            self.state = self.beforeAttributeNameState
+        return True
+
+    def selfClosingStartTagState(self):
+        data = self.stream.char()
+        if data == ">":
+            self.currentToken["selfClosing"] = True
+            self.emitCurrentToken()
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data":
+                                    "unexpected-EOF-after-solidus-in-tag"})
+            self.stream.unget(data)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-character-after-solidus-in-tag"})
+            self.stream.unget(data)
+            self.state = self.beforeAttributeNameState
+        return True
+
+    def bogusCommentState(self):
+        # Make a new comment token and give it as value all the characters
+        # until the first > or EOF (charsUntil checks for EOF automatically)
+        # and emit it.
+        data = self.stream.charsUntil(">")
+        data = data.replace("\u0000", "\uFFFD")
+        self.tokenQueue.append(
+            {"type": tokenTypes["Comment"], "data": data})
+
+        # Eat the character directly after the bogus comment which is either a
+        # ">" or an EOF.
+        self.stream.char()
+        self.state = self.dataState
+        return True
+
+    def markupDeclarationOpenState(self):
+        charStack = [self.stream.char()]
+        if charStack[-1] == "-":
+            charStack.append(self.stream.char())
+            if charStack[-1] == "-":
+                self.currentToken = {"type": tokenTypes["Comment"], "data": ""}
+                self.state = self.commentStartState
+                return True
+        elif charStack[-1] in ('d', 'D'):
+            matched = True
+            for expected in (('o', 'O'), ('c', 'C'), ('t', 'T'),
+                             ('y', 'Y'), ('p', 'P'), ('e', 'E')):
+                charStack.append(self.stream.char())
+                if charStack[-1] not in expected:
+                    matched = False
+                    break
+            if matched:
+                self.currentToken = {"type": tokenTypes["Doctype"],
+                                     "name": "",
+                                     "publicId": None, "systemId": None,
+                                     "correct": True}
+                self.state = self.doctypeState
+                return True
+        elif (charStack[-1] == "[" and
+              self.parser is not None and
+              self.parser.tree.openElements and
+              self.parser.tree.openElements[-1].namespace != self.parser.tree.defaultNamespace):
+            matched = True
+            for expected in ["C", "D", "A", "T", "A", "["]:
+                charStack.append(self.stream.char())
+                if charStack[-1] != expected:
+                    matched = False
+                    break
+            if matched:
+                self.state = self.cdataSectionState
+                return True
+
+        self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                "expected-dashes-or-doctype"})
+
+        while charStack:
+            self.stream.unget(charStack.pop())
+        self.state = self.bogusCommentState
+        return True
+
+    def commentStartState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.state = self.commentStartDashState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "incorrect-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += data
+            self.state = self.commentState
+        return True
+
+    def commentStartDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.state = self.commentEndState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "-\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "incorrect-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += "-" + data
+            self.state = self.commentState
+        return True
+
+    def commentState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.state = self.commentEndDashState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "\uFFFD"
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "eof-in-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += data + \
+                self.stream.charsUntil(("-", "\u0000"))
+        return True
+
+    def commentEndDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.state = self.commentEndState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "-\uFFFD"
+            self.state = self.commentState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment-end-dash"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += "-" + data
+            self.state = self.commentState
+        return True
+
+    def commentEndState(self):
+        data = self.stream.char()
+        if data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "--\uFFFD"
+            self.state = self.commentState
+        elif data == "!":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-bang-after-double-dash-in-comment"})
+            self.state = self.commentEndBangState
+        elif data == "-":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-dash-after-double-dash-in-comment"})
+            self.currentToken["data"] += data
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment-double-dash"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            # XXX
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-comment"})
+            self.currentToken["data"] += "--" + data
+            self.state = self.commentState
+        return True
+
+    def commentEndBangState(self):
+        data = self.stream.char()
+        if data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == "-":
+            self.currentToken["data"] += "--!"
+            self.state = self.commentEndDashState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "--!\uFFFD"
+            self.state = self.commentState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment-end-bang-state"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += "--!" + data
+            self.state = self.commentState
+        return True
+
+    def doctypeState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeDoctypeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-doctype-name-but-got-eof"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "need-space-after-doctype"})
+            self.stream.unget(data)
+            self.state = self.beforeDoctypeNameState
+        return True
+
+    def beforeDoctypeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-doctype-name-but-got-right-bracket"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["name"] = "\uFFFD"
+            self.state = self.doctypeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-doctype-name-but-got-eof"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["name"] = data
+            self.state = self.doctypeNameState
+        return True
+
+    def doctypeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.currentToken["name"] = self.currentToken["name"].translate(asciiUpper2Lower)
+            self.state = self.afterDoctypeNameState
+        elif data == ">":
+            self.currentToken["name"] = self.currentToken["name"].translate(asciiUpper2Lower)
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["name"] += "\uFFFD"
+            self.state = self.doctypeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype-name"})
+            self.currentToken["correct"] = False
+            self.currentToken["name"] = self.currentToken["name"].translate(asciiUpper2Lower)
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["name"] += data
+        return True
+
+    def afterDoctypeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.currentToken["correct"] = False
+            self.stream.unget(data)
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            if data in ("p", "P"):
+                matched = True
+                for expected in (("u", "U"), ("b", "B"), ("l", "L"),
+                                 ("i", "I"), ("c", "C")):
+                    data = self.stream.char()
+                    if data not in expected:
+                        matched = False
+                        break
+                if matched:
+                    self.state = self.afterDoctypePublicKeywordState
+                    return True
+            elif data in ("s", "S"):
+                matched = True
+                for expected in (("y", "Y"), ("s", "S"), ("t", "T"),
+                                 ("e", "E"), ("m", "M")):
+                    data = self.stream.char()
+                    if data not in expected:
+                        matched = False
+                        break
+                if matched:
+                    self.state = self.afterDoctypeSystemKeywordState
+                    return True
+
+            # All the characters read before the current 'data' will be
+            # [a-zA-Z], so they're garbage in the bogus doctype and can be
+            # discarded; only the latest character might be '>' or EOF
+            # and needs to be ungetted
+            self.stream.unget(data)
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-space-or-right-bracket-in-doctype", "datavars":
+                                    {"data": data}})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+
+        return True
+
+    def afterDoctypePublicKeywordState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeDoctypePublicIdentifierState
+        elif data in ("'", '"'):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.stream.unget(data)
+            self.state = self.beforeDoctypePublicIdentifierState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.stream.unget(data)
+            self.state = self.beforeDoctypePublicIdentifierState
+        return True
+
+    def beforeDoctypePublicIdentifierState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == "\"":
+            self.currentToken["publicId"] = ""
+            self.state = self.doctypePublicIdentifierDoubleQuotedState
+        elif data == "'":
+            self.currentToken["publicId"] = ""
+            self.state = self.doctypePublicIdentifierSingleQuotedState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+        return True
+
+    def doctypePublicIdentifierDoubleQuotedState(self):
+        data = self.stream.char()
+        if data == "\"":
+            self.state = self.afterDoctypePublicIdentifierState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["publicId"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["publicId"] += data
+        return True
+
+    def doctypePublicIdentifierSingleQuotedState(self):
+        data = self.stream.char()
+        if data == "'":
+            self.state = self.afterDoctypePublicIdentifierState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["publicId"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["publicId"] += data
+        return True
+
+    def afterDoctypePublicIdentifierState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.betweenDoctypePublicAndSystemIdentifiersState
+        elif data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == '"':
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierDoubleQuotedState
+        elif data == "'":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierSingleQuotedState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+        return True
+
+    def betweenDoctypePublicAndSystemIdentifiersState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == '"':
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierDoubleQuotedState
+        elif data == "'":
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierSingleQuotedState
+        elif data == EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+        return True
+
+    def afterDoctypeSystemKeywordState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeDoctypeSystemIdentifierState
+        elif data in ("'", '"'):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.stream.unget(data)
+            self.state = self.beforeDoctypeSystemIdentifierState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.stream.unget(data)
+            self.state = self.beforeDoctypeSystemIdentifierState
+        return True
+
+    def beforeDoctypeSystemIdentifierState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == "\"":
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierDoubleQuotedState
+        elif data == "'":
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierSingleQuotedState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+        return True
+
+    def doctypeSystemIdentifierDoubleQuotedState(self):
+        data = self.stream.char()
+        if data == "\"":
+            self.state = self.afterDoctypeSystemIdentifierState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["systemId"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["systemId"] += data
+        return True
+
+    def doctypeSystemIdentifierSingleQuotedState(self):
+        data = self.stream.char()
+        if data == "'":
+            self.state = self.afterDoctypeSystemIdentifierState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["systemId"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["systemId"] += data
+        return True
+
+    def afterDoctypeSystemIdentifierState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.state = self.bogusDoctypeState
+        return True
+
+    def bogusDoctypeState(self):
+        data = self.stream.char()
+        if data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            # XXX EMIT
+            self.stream.unget(data)
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            pass
+        return True
+
+    def cdataSectionState(self):
+        data = []
+        while True:
+            data.append(self.stream.charsUntil("]"))
+            data.append(self.stream.charsUntil(">"))
+            char = self.stream.char()
+            if char == EOF:
+                break
+            else:
+                assert char == ">"
+                if data[-1][-2:] == "]]":
+                    data[-1] = data[-1][:-2]
+                    break
+                else:
+                    data.append(char)
+
+        data = "".join(data)  # pylint:disable=redefined-variable-type
+        # Deal with null here rather than in the parser
+        nullCount = data.count("\u0000")
+        if nullCount > 0:
+            for _ in range(nullCount):
+                self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                        "data": "invalid-codepoint"})
+            data = data.replace("\u0000", "\uFFFD")
+        if data:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": data})
+        self.state = self.dataState
+        return True
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_trie/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_trie/__init__.py
new file mode 100644
index 0000000..07bad5d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_trie/__init__.py
@@ -0,0 +1,5 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from .py import Trie
+
+__all__ = ["Trie"]
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_trie/_base.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_trie/_base.py
new file mode 100644
index 0000000..6b71975
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_trie/_base.py
@@ -0,0 +1,40 @@
+from __future__ import absolute_import, division, unicode_literals
+
+try:
+    from collections.abc import Mapping
+except ImportError:  # Python 2.7
+    from collections import Mapping
+
+
+class Trie(Mapping):
+    """Abstract base class for tries"""
+
+    def keys(self, prefix=None):
+        # pylint:disable=arguments-differ
+        keys = super(Trie, self).keys()
+
+        if prefix is None:
+            return set(keys)
+
+        return {x for x in keys if x.startswith(prefix)}
+
+    def has_keys_with_prefix(self, prefix):
+        for key in self.keys():
+            if key.startswith(prefix):
+                return True
+
+        return False
+
+    def longest_prefix(self, prefix):
+        if prefix in self:
+            return prefix
+
+        for i in range(1, len(prefix) + 1):
+            if prefix[:-i] in self:
+                return prefix[:-i]
+
+        raise KeyError(prefix)
+
+    def longest_prefix_item(self, prefix):
+        lprefix = self.longest_prefix(prefix)
+        return (lprefix, self[lprefix])
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_trie/py.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_trie/py.py
new file mode 100644
index 0000000..c178b21
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_trie/py.py
@@ -0,0 +1,67 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import text_type
+
+from bisect import bisect_left
+
+from ._base import Trie as ABCTrie
+
+
+class Trie(ABCTrie):
+    def __init__(self, data):
+        if not all(isinstance(x, text_type) for x in data.keys()):
+            raise TypeError("All keys must be strings")
+
+        self._data = data
+        self._keys = sorted(data.keys())
+        self._cachestr = ""
+        self._cachepoints = (0, len(data))
+
+    def __contains__(self, key):
+        return key in self._data
+
+    def __len__(self):
+        return len(self._data)
+
+    def __iter__(self):
+        return iter(self._data)
+
+    def __getitem__(self, key):
+        return self._data[key]
+
+    def keys(self, prefix=None):
+        if prefix is None or prefix == "" or not self._keys:
+            return set(self._keys)
+
+        if prefix.startswith(self._cachestr):
+            lo, hi = self._cachepoints
+            start = i = bisect_left(self._keys, prefix, lo, hi)
+        else:
+            start = i = bisect_left(self._keys, prefix)
+
+        keys = set()
+        if start == len(self._keys):
+            return keys
+
+        while self._keys[i].startswith(prefix):
+            keys.add(self._keys[i])
+            i += 1
+
+        self._cachestr = prefix
+        self._cachepoints = (start, i)
+
+        return keys
+
+    def has_keys_with_prefix(self, prefix):
+        if prefix in self._data:
+            return True
+
+        if prefix.startswith(self._cachestr):
+            lo, hi = self._cachepoints
+            i = bisect_left(self._keys, prefix, lo, hi)
+        else:
+            i = bisect_left(self._keys, prefix)
+
+        if i == len(self._keys):
+            return False
+
+        return self._keys[i].startswith(prefix)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_utils.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_utils.py
new file mode 100644
index 0000000..d7c4926
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/_utils.py
@@ -0,0 +1,159 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from types import ModuleType
+
+try:
+    from collections.abc import Mapping
+except ImportError:
+    from collections import Mapping
+
+from pip._vendor.six import text_type, PY3
+
+if PY3:
+    import xml.etree.ElementTree as default_etree
+else:
+    try:
+        import xml.etree.cElementTree as default_etree
+    except ImportError:
+        import xml.etree.ElementTree as default_etree
+
+
+__all__ = ["default_etree", "MethodDispatcher", "isSurrogatePair",
+           "surrogatePairToCodepoint", "moduleFactoryFactory",
+           "supports_lone_surrogates"]
+
+
+# Platforms not supporting lone surrogates (\uD800-\uDFFF) should be
+# caught by the below test. In general this would be any platform
+# using UTF-16 as its encoding of unicode strings, such as
+# Jython. This is because UTF-16 itself is based on the use of such
+# surrogates, and there is no mechanism to further escape such
+# escapes.
+try:
+    _x = eval('"\\uD800"')  # pylint:disable=eval-used
+    if not isinstance(_x, text_type):
+        # We need this with u"" because of http://bugs.jython.org/issue2039
+        _x = eval('u"\\uD800"')  # pylint:disable=eval-used
+        assert isinstance(_x, text_type)
+except Exception:
+    supports_lone_surrogates = False
+else:
+    supports_lone_surrogates = True
+
+
+class MethodDispatcher(dict):
+    """Dict with 2 special properties:
+
+    On initiation, keys that are lists, sets or tuples are converted to
+    multiple keys so accessing any one of the items in the original
+    list-like object returns the matching value
+
+    md = MethodDispatcher({("foo", "bar"):"baz"})
+    md["foo"] == "baz"
+
+    A default value which can be set through the default attribute.
+    """
+
+    def __init__(self, items=()):
+        _dictEntries = []
+        for name, value in items:
+            if isinstance(name, (list, tuple, frozenset, set)):
+                for item in name:
+                    _dictEntries.append((item, value))
+            else:
+                _dictEntries.append((name, value))
+        dict.__init__(self, _dictEntries)
+        assert len(self) == len(_dictEntries)
+        self.default = None
+
+    def __getitem__(self, key):
+        return dict.get(self, key, self.default)
+
+    def __get__(self, instance, owner=None):
+        return BoundMethodDispatcher(instance, self)
+
+
+class BoundMethodDispatcher(Mapping):
+    """Wraps a MethodDispatcher, binding its return values to `instance`"""
+    def __init__(self, instance, dispatcher):
+        self.instance = instance
+        self.dispatcher = dispatcher
+
+    def __getitem__(self, key):
+        # see https://docs.python.org/3/reference/datamodel.html#object.__get__
+        # on a function, __get__ is used to bind a function to an instance as a bound method
+        return self.dispatcher[key].__get__(self.instance)
+
+    def get(self, key, default):
+        if key in self.dispatcher:
+            return self[key]
+        else:
+            return default
+
+    def __iter__(self):
+        return iter(self.dispatcher)
+
+    def __len__(self):
+        return len(self.dispatcher)
+
+    def __contains__(self, key):
+        return key in self.dispatcher
+
+
+# Some utility functions to deal with weirdness around UCS2 vs UCS4
+# python builds
+
+def isSurrogatePair(data):
+    return (len(data) == 2 and
+            ord(data[0]) >= 0xD800 and ord(data[0]) <= 0xDBFF and
+            ord(data[1]) >= 0xDC00 and ord(data[1]) <= 0xDFFF)
+
+
+def surrogatePairToCodepoint(data):
+    char_val = (0x10000 + (ord(data[0]) - 0xD800) * 0x400 +
+                (ord(data[1]) - 0xDC00))
+    return char_val
+
+# Module Factory Factory (no, this isn't Java, I know)
+# Here to stop this being duplicated all over the place.
+
+
+def moduleFactoryFactory(factory):
+    moduleCache = {}
+
+    def moduleFactory(baseModule, *args, **kwargs):
+        if isinstance(ModuleType.__name__, type("")):
+            name = "_%s_factory" % baseModule.__name__
+        else:
+            name = b"_%s_factory" % baseModule.__name__
+
+        kwargs_tuple = tuple(kwargs.items())
+
+        try:
+            return moduleCache[name][args][kwargs_tuple]
+        except KeyError:
+            mod = ModuleType(name)
+            objs = factory(baseModule, *args, **kwargs)
+            mod.__dict__.update(objs)
+            if "name" not in moduleCache:
+                moduleCache[name] = {}
+            if "args" not in moduleCache[name]:
+                moduleCache[name][args] = {}
+            if "kwargs" not in moduleCache[name][args]:
+                moduleCache[name][args][kwargs_tuple] = {}
+            moduleCache[name][args][kwargs_tuple] = mod
+            return mod
+
+    return moduleFactory
+
+
+def memoize(func):
+    cache = {}
+
+    def wrapped(*args, **kwargs):
+        key = (tuple(args), tuple(kwargs.items()))
+        if key not in cache:
+            cache[key] = func(*args, **kwargs)
+        return cache[key]
+
+    return wrapped
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/constants.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/constants.py
new file mode 100644
index 0000000..fe3e237
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/constants.py
@@ -0,0 +1,2946 @@
+from __future__ import absolute_import, division, unicode_literals
+
+import string
+
+EOF = None
+
+E = {
+    "null-character":
+        "Null character in input stream, replaced with U+FFFD.",
+    "invalid-codepoint":
+        "Invalid codepoint in stream.",
+    "incorrectly-placed-solidus":
+        "Solidus (/) incorrectly placed in tag.",
+    "incorrect-cr-newline-entity":
+        "Incorrect CR newline entity, replaced with LF.",
+    "illegal-windows-1252-entity":
+        "Entity used with illegal number (windows-1252 reference).",
+    "cant-convert-numeric-entity":
+        "Numeric entity couldn't be converted to character "
+        "(codepoint U+%(charAsInt)08x).",
+    "illegal-codepoint-for-numeric-entity":
+        "Numeric entity represents an illegal codepoint: "
+        "U+%(charAsInt)08x.",
+    "numeric-entity-without-semicolon":
+        "Numeric entity didn't end with ';'.",
+    "expected-numeric-entity-but-got-eof":
+        "Numeric entity expected. Got end of file instead.",
+    "expected-numeric-entity":
+        "Numeric entity expected but none found.",
+    "named-entity-without-semicolon":
+        "Named entity didn't end with ';'.",
+    "expected-named-entity":
+        "Named entity expected. Got none.",
+    "attributes-in-end-tag":
+        "End tag contains unexpected attributes.",
+    'self-closing-flag-on-end-tag':
+        "End tag contains unexpected self-closing flag.",
+    "expected-tag-name-but-got-right-bracket":
+        "Expected tag name. Got '>' instead.",
+    "expected-tag-name-but-got-question-mark":
+        "Expected tag name. Got '?' instead. (HTML doesn't "
+        "support processing instructions.)",
+    "expected-tag-name":
+        "Expected tag name. Got something else instead",
+    "expected-closing-tag-but-got-right-bracket":
+        "Expected closing tag. Got '>' instead. Ignoring ''.",
+    "expected-closing-tag-but-got-eof":
+        "Expected closing tag. Unexpected end of file.",
+    "expected-closing-tag-but-got-char":
+        "Expected closing tag. Unexpected character '%(data)s' found.",
+    "eof-in-tag-name":
+        "Unexpected end of file in the tag name.",
+    "expected-attribute-name-but-got-eof":
+        "Unexpected end of file. Expected attribute name instead.",
+    "eof-in-attribute-name":
+        "Unexpected end of file in attribute name.",
+    "invalid-character-in-attribute-name":
+        "Invalid character in attribute name",
+    "duplicate-attribute":
+        "Dropped duplicate attribute on tag.",
+    "expected-end-of-tag-name-but-got-eof":
+        "Unexpected end of file. Expected = or end of tag.",
+    "expected-attribute-value-but-got-eof":
+        "Unexpected end of file. Expected attribute value.",
+    "expected-attribute-value-but-got-right-bracket":
+        "Expected attribute value. Got '>' instead.",
+    'equals-in-unquoted-attribute-value':
+        "Unexpected = in unquoted attribute",
+    'unexpected-character-in-unquoted-attribute-value':
+        "Unexpected character in unquoted attribute",
+    "invalid-character-after-attribute-name":
+        "Unexpected character after attribute name.",
+    "unexpected-character-after-attribute-value":
+        "Unexpected character after attribute value.",
+    "eof-in-attribute-value-double-quote":
+        "Unexpected end of file in attribute value (\").",
+    "eof-in-attribute-value-single-quote":
+        "Unexpected end of file in attribute value (').",
+    "eof-in-attribute-value-no-quotes":
+        "Unexpected end of file in attribute value.",
+    "unexpected-EOF-after-solidus-in-tag":
+        "Unexpected end of file in tag. Expected >",
+    "unexpected-character-after-solidus-in-tag":
+        "Unexpected character after / in tag. Expected >",
+    "expected-dashes-or-doctype":
+        "Expected '--' or 'DOCTYPE'. Not found.",
+    "unexpected-bang-after-double-dash-in-comment":
+        "Unexpected ! after -- in comment",
+    "unexpected-space-after-double-dash-in-comment":
+        "Unexpected space after -- in comment",
+    "incorrect-comment":
+        "Incorrect comment.",
+    "eof-in-comment":
+        "Unexpected end of file in comment.",
+    "eof-in-comment-end-dash":
+        "Unexpected end of file in comment (-)",
+    "unexpected-dash-after-double-dash-in-comment":
+        "Unexpected '-' after '--' found in comment.",
+    "eof-in-comment-double-dash":
+        "Unexpected end of file in comment (--).",
+    "eof-in-comment-end-space-state":
+        "Unexpected end of file in comment.",
+    "eof-in-comment-end-bang-state":
+        "Unexpected end of file in comment.",
+    "unexpected-char-in-comment":
+        "Unexpected character in comment found.",
+    "need-space-after-doctype":
+        "No space after literal string 'DOCTYPE'.",
+    "expected-doctype-name-but-got-right-bracket":
+        "Unexpected > character. Expected DOCTYPE name.",
+    "expected-doctype-name-but-got-eof":
+        "Unexpected end of file. Expected DOCTYPE name.",
+    "eof-in-doctype-name":
+        "Unexpected end of file in DOCTYPE name.",
+    "eof-in-doctype":
+        "Unexpected end of file in DOCTYPE.",
+    "expected-space-or-right-bracket-in-doctype":
+        "Expected space or '>'. Got '%(data)s'",
+    "unexpected-end-of-doctype":
+        "Unexpected end of DOCTYPE.",
+    "unexpected-char-in-doctype":
+        "Unexpected character in DOCTYPE.",
+    "eof-in-innerhtml":
+        "XXX innerHTML EOF",
+    "unexpected-doctype":
+        "Unexpected DOCTYPE. Ignored.",
+    "non-html-root":
+        "html needs to be the first start tag.",
+    "expected-doctype-but-got-eof":
+        "Unexpected End of file. Expected DOCTYPE.",
+    "unknown-doctype":
+        "Erroneous DOCTYPE.",
+    "expected-doctype-but-got-chars":
+        "Unexpected non-space characters. Expected DOCTYPE.",
+    "expected-doctype-but-got-start-tag":
+        "Unexpected start tag (%(name)s). Expected DOCTYPE.",
+    "expected-doctype-but-got-end-tag":
+        "Unexpected end tag (%(name)s). Expected DOCTYPE.",
+    "end-tag-after-implied-root":
+        "Unexpected end tag (%(name)s) after the (implied) root element.",
+    "expected-named-closing-tag-but-got-eof":
+        "Unexpected end of file. Expected end tag (%(name)s).",
+    "two-heads-are-not-better-than-one":
+        "Unexpected start tag head in existing head. Ignored.",
+    "unexpected-end-tag":
+        "Unexpected end tag (%(name)s). Ignored.",
+    "unexpected-start-tag-out-of-my-head":
+        "Unexpected start tag (%(name)s) that can be in head. Moved.",
+    "unexpected-start-tag":
+        "Unexpected start tag (%(name)s).",
+    "missing-end-tag":
+        "Missing end tag (%(name)s).",
+    "missing-end-tags":
+        "Missing end tags (%(name)s).",
+    "unexpected-start-tag-implies-end-tag":
+        "Unexpected start tag (%(startName)s) "
+        "implies end tag (%(endName)s).",
+    "unexpected-start-tag-treated-as":
+        "Unexpected start tag (%(originalName)s). Treated as %(newName)s.",
+    "deprecated-tag":
+        "Unexpected start tag %(name)s. Don't use it!",
+    "unexpected-start-tag-ignored":
+        "Unexpected start tag %(name)s. Ignored.",
+    "expected-one-end-tag-but-got-another":
+        "Unexpected end tag (%(gotName)s). "
+        "Missing end tag (%(expectedName)s).",
+    "end-tag-too-early":
+        "End tag (%(name)s) seen too early. Expected other end tag.",
+    "end-tag-too-early-named":
+        "Unexpected end tag (%(gotName)s). Expected end tag (%(expectedName)s).",
+    "end-tag-too-early-ignored":
+        "End tag (%(name)s) seen too early. Ignored.",
+    "adoption-agency-1.1":
+        "End tag (%(name)s) violates step 1, "
+        "paragraph 1 of the adoption agency algorithm.",
+    "adoption-agency-1.2":
+        "End tag (%(name)s) violates step 1, "
+        "paragraph 2 of the adoption agency algorithm.",
+    "adoption-agency-1.3":
+        "End tag (%(name)s) violates step 1, "
+        "paragraph 3 of the adoption agency algorithm.",
+    "adoption-agency-4.4":
+        "End tag (%(name)s) violates step 4, "
+        "paragraph 4 of the adoption agency algorithm.",
+    "unexpected-end-tag-treated-as":
+        "Unexpected end tag (%(originalName)s). Treated as %(newName)s.",
+    "no-end-tag":
+        "This element (%(name)s) has no end tag.",
+    "unexpected-implied-end-tag-in-table":
+        "Unexpected implied end tag (%(name)s) in the table phase.",
+    "unexpected-implied-end-tag-in-table-body":
+        "Unexpected implied end tag (%(name)s) in the table body phase.",
+    "unexpected-char-implies-table-voodoo":
+        "Unexpected non-space characters in "
+        "table context caused voodoo mode.",
+    "unexpected-hidden-input-in-table":
+        "Unexpected input with type hidden in table context.",
+    "unexpected-form-in-table":
+        "Unexpected form in table context.",
+    "unexpected-start-tag-implies-table-voodoo":
+        "Unexpected start tag (%(name)s) in "
+        "table context caused voodoo mode.",
+    "unexpected-end-tag-implies-table-voodoo":
+        "Unexpected end tag (%(name)s) in "
+        "table context caused voodoo mode.",
+    "unexpected-cell-in-table-body":
+        "Unexpected table cell start tag (%(name)s) "
+        "in the table body phase.",
+    "unexpected-cell-end-tag":
+        "Got table cell end tag (%(name)s) "
+        "while required end tags are missing.",
+    "unexpected-end-tag-in-table-body":
+        "Unexpected end tag (%(name)s) in the table body phase. Ignored.",
+    "unexpected-implied-end-tag-in-table-row":
+        "Unexpected implied end tag (%(name)s) in the table row phase.",
+    "unexpected-end-tag-in-table-row":
+        "Unexpected end tag (%(name)s) in the table row phase. Ignored.",
+    "unexpected-select-in-select":
+        "Unexpected select start tag in the select phase "
+        "treated as select end tag.",
+    "unexpected-input-in-select":
+        "Unexpected input start tag in the select phase.",
+    "unexpected-start-tag-in-select":
+        "Unexpected start tag token (%(name)s in the select phase. "
+        "Ignored.",
+    "unexpected-end-tag-in-select":
+        "Unexpected end tag (%(name)s) in the select phase. Ignored.",
+    "unexpected-table-element-start-tag-in-select-in-table":
+        "Unexpected table element start tag (%(name)s) in the select in table phase.",
+    "unexpected-table-element-end-tag-in-select-in-table":
+        "Unexpected table element end tag (%(name)s) in the select in table phase.",
+    "unexpected-char-after-body":
+        "Unexpected non-space characters in the after body phase.",
+    "unexpected-start-tag-after-body":
+        "Unexpected start tag token (%(name)s)"
+        " in the after body phase.",
+    "unexpected-end-tag-after-body":
+        "Unexpected end tag token (%(name)s)"
+        " in the after body phase.",
+    "unexpected-char-in-frameset":
+        "Unexpected characters in the frameset phase. Characters ignored.",
+    "unexpected-start-tag-in-frameset":
+        "Unexpected start tag token (%(name)s)"
+        " in the frameset phase. Ignored.",
+    "unexpected-frameset-in-frameset-innerhtml":
+        "Unexpected end tag token (frameset) "
+        "in the frameset phase (innerHTML).",
+    "unexpected-end-tag-in-frameset":
+        "Unexpected end tag token (%(name)s)"
+        " in the frameset phase. Ignored.",
+    "unexpected-char-after-frameset":
+        "Unexpected non-space characters in the "
+        "after frameset phase. Ignored.",
+    "unexpected-start-tag-after-frameset":
+        "Unexpected start tag (%(name)s)"
+        " in the after frameset phase. Ignored.",
+    "unexpected-end-tag-after-frameset":
+        "Unexpected end tag (%(name)s)"
+        " in the after frameset phase. Ignored.",
+    "unexpected-end-tag-after-body-innerhtml":
+        "Unexpected end tag after body(innerHtml)",
+    "expected-eof-but-got-char":
+        "Unexpected non-space characters. Expected end of file.",
+    "expected-eof-but-got-start-tag":
+        "Unexpected start tag (%(name)s)"
+        ". Expected end of file.",
+    "expected-eof-but-got-end-tag":
+        "Unexpected end tag (%(name)s)"
+        ". Expected end of file.",
+    "eof-in-table":
+        "Unexpected end of file. Expected table content.",
+    "eof-in-select":
+        "Unexpected end of file. Expected select content.",
+    "eof-in-frameset":
+        "Unexpected end of file. Expected frameset content.",
+    "eof-in-script-in-script":
+        "Unexpected end of file. Expected script content.",
+    "eof-in-foreign-lands":
+        "Unexpected end of file. Expected foreign content",
+    "non-void-element-with-trailing-solidus":
+        "Trailing solidus not allowed on element %(name)s",
+    "unexpected-html-element-in-foreign-content":
+        "Element %(name)s not allowed in a non-html context",
+    "unexpected-end-tag-before-html":
+        "Unexpected end tag (%(name)s) before html.",
+    "unexpected-inhead-noscript-tag":
+        "Element %(name)s not allowed in a inhead-noscript context",
+    "eof-in-head-noscript":
+        "Unexpected end of file. Expected inhead-noscript content",
+    "char-in-head-noscript":
+        "Unexpected non-space character. Expected inhead-noscript content",
+    "XXX-undefined-error":
+        "Undefined error (this sucks and should be fixed)",
+}
+
+namespaces = {
+    "html": "http://www.w3.org/1999/xhtml",
+    "mathml": "http://www.w3.org/1998/Math/MathML",
+    "svg": "http://www.w3.org/2000/svg",
+    "xlink": "http://www.w3.org/1999/xlink",
+    "xml": "http://www.w3.org/XML/1998/namespace",
+    "xmlns": "http://www.w3.org/2000/xmlns/"
+}
+
+scopingElements = frozenset([
+    (namespaces["html"], "applet"),
+    (namespaces["html"], "caption"),
+    (namespaces["html"], "html"),
+    (namespaces["html"], "marquee"),
+    (namespaces["html"], "object"),
+    (namespaces["html"], "table"),
+    (namespaces["html"], "td"),
+    (namespaces["html"], "th"),
+    (namespaces["mathml"], "mi"),
+    (namespaces["mathml"], "mo"),
+    (namespaces["mathml"], "mn"),
+    (namespaces["mathml"], "ms"),
+    (namespaces["mathml"], "mtext"),
+    (namespaces["mathml"], "annotation-xml"),
+    (namespaces["svg"], "foreignObject"),
+    (namespaces["svg"], "desc"),
+    (namespaces["svg"], "title"),
+])
+
+formattingElements = frozenset([
+    (namespaces["html"], "a"),
+    (namespaces["html"], "b"),
+    (namespaces["html"], "big"),
+    (namespaces["html"], "code"),
+    (namespaces["html"], "em"),
+    (namespaces["html"], "font"),
+    (namespaces["html"], "i"),
+    (namespaces["html"], "nobr"),
+    (namespaces["html"], "s"),
+    (namespaces["html"], "small"),
+    (namespaces["html"], "strike"),
+    (namespaces["html"], "strong"),
+    (namespaces["html"], "tt"),
+    (namespaces["html"], "u")
+])
+
+specialElements = frozenset([
+    (namespaces["html"], "address"),
+    (namespaces["html"], "applet"),
+    (namespaces["html"], "area"),
+    (namespaces["html"], "article"),
+    (namespaces["html"], "aside"),
+    (namespaces["html"], "base"),
+    (namespaces["html"], "basefont"),
+    (namespaces["html"], "bgsound"),
+    (namespaces["html"], "blockquote"),
+    (namespaces["html"], "body"),
+    (namespaces["html"], "br"),
+    (namespaces["html"], "button"),
+    (namespaces["html"], "caption"),
+    (namespaces["html"], "center"),
+    (namespaces["html"], "col"),
+    (namespaces["html"], "colgroup"),
+    (namespaces["html"], "command"),
+    (namespaces["html"], "dd"),
+    (namespaces["html"], "details"),
+    (namespaces["html"], "dir"),
+    (namespaces["html"], "div"),
+    (namespaces["html"], "dl"),
+    (namespaces["html"], "dt"),
+    (namespaces["html"], "embed"),
+    (namespaces["html"], "fieldset"),
+    (namespaces["html"], "figure"),
+    (namespaces["html"], "footer"),
+    (namespaces["html"], "form"),
+    (namespaces["html"], "frame"),
+    (namespaces["html"], "frameset"),
+    (namespaces["html"], "h1"),
+    (namespaces["html"], "h2"),
+    (namespaces["html"], "h3"),
+    (namespaces["html"], "h4"),
+    (namespaces["html"], "h5"),
+    (namespaces["html"], "h6"),
+    (namespaces["html"], "head"),
+    (namespaces["html"], "header"),
+    (namespaces["html"], "hr"),
+    (namespaces["html"], "html"),
+    (namespaces["html"], "iframe"),
+    # Note that image is commented out in the spec as "this isn't an
+    # element that can end up on the stack, so it doesn't matter,"
+    (namespaces["html"], "image"),
+    (namespaces["html"], "img"),
+    (namespaces["html"], "input"),
+    (namespaces["html"], "isindex"),
+    (namespaces["html"], "li"),
+    (namespaces["html"], "link"),
+    (namespaces["html"], "listing"),
+    (namespaces["html"], "marquee"),
+    (namespaces["html"], "menu"),
+    (namespaces["html"], "meta"),
+    (namespaces["html"], "nav"),
+    (namespaces["html"], "noembed"),
+    (namespaces["html"], "noframes"),
+    (namespaces["html"], "noscript"),
+    (namespaces["html"], "object"),
+    (namespaces["html"], "ol"),
+    (namespaces["html"], "p"),
+    (namespaces["html"], "param"),
+    (namespaces["html"], "plaintext"),
+    (namespaces["html"], "pre"),
+    (namespaces["html"], "script"),
+    (namespaces["html"], "section"),
+    (namespaces["html"], "select"),
+    (namespaces["html"], "style"),
+    (namespaces["html"], "table"),
+    (namespaces["html"], "tbody"),
+    (namespaces["html"], "td"),
+    (namespaces["html"], "textarea"),
+    (namespaces["html"], "tfoot"),
+    (namespaces["html"], "th"),
+    (namespaces["html"], "thead"),
+    (namespaces["html"], "title"),
+    (namespaces["html"], "tr"),
+    (namespaces["html"], "ul"),
+    (namespaces["html"], "wbr"),
+    (namespaces["html"], "xmp"),
+    (namespaces["svg"], "foreignObject")
+])
+
+htmlIntegrationPointElements = frozenset([
+    (namespaces["mathml"], "annotation-xml"),
+    (namespaces["svg"], "foreignObject"),
+    (namespaces["svg"], "desc"),
+    (namespaces["svg"], "title")
+])
+
+mathmlTextIntegrationPointElements = frozenset([
+    (namespaces["mathml"], "mi"),
+    (namespaces["mathml"], "mo"),
+    (namespaces["mathml"], "mn"),
+    (namespaces["mathml"], "ms"),
+    (namespaces["mathml"], "mtext")
+])
+
+adjustSVGAttributes = {
+    "attributename": "attributeName",
+    "attributetype": "attributeType",
+    "basefrequency": "baseFrequency",
+    "baseprofile": "baseProfile",
+    "calcmode": "calcMode",
+    "clippathunits": "clipPathUnits",
+    "contentscripttype": "contentScriptType",
+    "contentstyletype": "contentStyleType",
+    "diffuseconstant": "diffuseConstant",
+    "edgemode": "edgeMode",
+    "externalresourcesrequired": "externalResourcesRequired",
+    "filterres": "filterRes",
+    "filterunits": "filterUnits",
+    "glyphref": "glyphRef",
+    "gradienttransform": "gradientTransform",
+    "gradientunits": "gradientUnits",
+    "kernelmatrix": "kernelMatrix",
+    "kernelunitlength": "kernelUnitLength",
+    "keypoints": "keyPoints",
+    "keysplines": "keySplines",
+    "keytimes": "keyTimes",
+    "lengthadjust": "lengthAdjust",
+    "limitingconeangle": "limitingConeAngle",
+    "markerheight": "markerHeight",
+    "markerunits": "markerUnits",
+    "markerwidth": "markerWidth",
+    "maskcontentunits": "maskContentUnits",
+    "maskunits": "maskUnits",
+    "numoctaves": "numOctaves",
+    "pathlength": "pathLength",
+    "patterncontentunits": "patternContentUnits",
+    "patterntransform": "patternTransform",
+    "patternunits": "patternUnits",
+    "pointsatx": "pointsAtX",
+    "pointsaty": "pointsAtY",
+    "pointsatz": "pointsAtZ",
+    "preservealpha": "preserveAlpha",
+    "preserveaspectratio": "preserveAspectRatio",
+    "primitiveunits": "primitiveUnits",
+    "refx": "refX",
+    "refy": "refY",
+    "repeatcount": "repeatCount",
+    "repeatdur": "repeatDur",
+    "requiredextensions": "requiredExtensions",
+    "requiredfeatures": "requiredFeatures",
+    "specularconstant": "specularConstant",
+    "specularexponent": "specularExponent",
+    "spreadmethod": "spreadMethod",
+    "startoffset": "startOffset",
+    "stddeviation": "stdDeviation",
+    "stitchtiles": "stitchTiles",
+    "surfacescale": "surfaceScale",
+    "systemlanguage": "systemLanguage",
+    "tablevalues": "tableValues",
+    "targetx": "targetX",
+    "targety": "targetY",
+    "textlength": "textLength",
+    "viewbox": "viewBox",
+    "viewtarget": "viewTarget",
+    "xchannelselector": "xChannelSelector",
+    "ychannelselector": "yChannelSelector",
+    "zoomandpan": "zoomAndPan"
+}
+
+adjustMathMLAttributes = {"definitionurl": "definitionURL"}
+
+adjustForeignAttributes = {
+    "xlink:actuate": ("xlink", "actuate", namespaces["xlink"]),
+    "xlink:arcrole": ("xlink", "arcrole", namespaces["xlink"]),
+    "xlink:href": ("xlink", "href", namespaces["xlink"]),
+    "xlink:role": ("xlink", "role", namespaces["xlink"]),
+    "xlink:show": ("xlink", "show", namespaces["xlink"]),
+    "xlink:title": ("xlink", "title", namespaces["xlink"]),
+    "xlink:type": ("xlink", "type", namespaces["xlink"]),
+    "xml:base": ("xml", "base", namespaces["xml"]),
+    "xml:lang": ("xml", "lang", namespaces["xml"]),
+    "xml:space": ("xml", "space", namespaces["xml"]),
+    "xmlns": (None, "xmlns", namespaces["xmlns"]),
+    "xmlns:xlink": ("xmlns", "xlink", namespaces["xmlns"])
+}
+
+unadjustForeignAttributes = {(ns, local): qname for qname, (prefix, local, ns) in
+                             adjustForeignAttributes.items()}
+
+spaceCharacters = frozenset([
+    "\t",
+    "\n",
+    "\u000C",
+    " ",
+    "\r"
+])
+
+tableInsertModeElements = frozenset([
+    "table",
+    "tbody",
+    "tfoot",
+    "thead",
+    "tr"
+])
+
+asciiLowercase = frozenset(string.ascii_lowercase)
+asciiUppercase = frozenset(string.ascii_uppercase)
+asciiLetters = frozenset(string.ascii_letters)
+digits = frozenset(string.digits)
+hexDigits = frozenset(string.hexdigits)
+
+asciiUpper2Lower = {ord(c): ord(c.lower()) for c in string.ascii_uppercase}
+
+# Heading elements need to be ordered
+headingElements = (
+    "h1",
+    "h2",
+    "h3",
+    "h4",
+    "h5",
+    "h6"
+)
+
+voidElements = frozenset([
+    "base",
+    "command",
+    "event-source",
+    "link",
+    "meta",
+    "hr",
+    "br",
+    "img",
+    "embed",
+    "param",
+    "area",
+    "col",
+    "input",
+    "source",
+    "track"
+])
+
+cdataElements = frozenset(['title', 'textarea'])
+
+rcdataElements = frozenset([
+    'style',
+    'script',
+    'xmp',
+    'iframe',
+    'noembed',
+    'noframes',
+    'noscript'
+])
+
+booleanAttributes = {
+    "": frozenset(["irrelevant", "itemscope"]),
+    "style": frozenset(["scoped"]),
+    "img": frozenset(["ismap"]),
+    "audio": frozenset(["autoplay", "controls"]),
+    "video": frozenset(["autoplay", "controls"]),
+    "script": frozenset(["defer", "async"]),
+    "details": frozenset(["open"]),
+    "datagrid": frozenset(["multiple", "disabled"]),
+    "command": frozenset(["hidden", "disabled", "checked", "default"]),
+    "hr": frozenset(["noshade"]),
+    "menu": frozenset(["autosubmit"]),
+    "fieldset": frozenset(["disabled", "readonly"]),
+    "option": frozenset(["disabled", "readonly", "selected"]),
+    "optgroup": frozenset(["disabled", "readonly"]),
+    "button": frozenset(["disabled", "autofocus"]),
+    "input": frozenset(["disabled", "readonly", "required", "autofocus", "checked", "ismap"]),
+    "select": frozenset(["disabled", "readonly", "autofocus", "multiple"]),
+    "output": frozenset(["disabled", "readonly"]),
+    "iframe": frozenset(["seamless"]),
+}
+
+# entitiesWindows1252 has to be _ordered_ and needs to have an index. It
+# therefore can't be a frozenset.
+entitiesWindows1252 = (
+    8364,   # 0x80  0x20AC  EURO SIGN
+    65533,  # 0x81          UNDEFINED
+    8218,   # 0x82  0x201A  SINGLE LOW-9 QUOTATION MARK
+    402,    # 0x83  0x0192  LATIN SMALL LETTER F WITH HOOK
+    8222,   # 0x84  0x201E  DOUBLE LOW-9 QUOTATION MARK
+    8230,   # 0x85  0x2026  HORIZONTAL ELLIPSIS
+    8224,   # 0x86  0x2020  DAGGER
+    8225,   # 0x87  0x2021  DOUBLE DAGGER
+    710,    # 0x88  0x02C6  MODIFIER LETTER CIRCUMFLEX ACCENT
+    8240,   # 0x89  0x2030  PER MILLE SIGN
+    352,    # 0x8A  0x0160  LATIN CAPITAL LETTER S WITH CARON
+    8249,   # 0x8B  0x2039  SINGLE LEFT-POINTING ANGLE QUOTATION MARK
+    338,    # 0x8C  0x0152  LATIN CAPITAL LIGATURE OE
+    65533,  # 0x8D          UNDEFINED
+    381,    # 0x8E  0x017D  LATIN CAPITAL LETTER Z WITH CARON
+    65533,  # 0x8F          UNDEFINED
+    65533,  # 0x90          UNDEFINED
+    8216,   # 0x91  0x2018  LEFT SINGLE QUOTATION MARK
+    8217,   # 0x92  0x2019  RIGHT SINGLE QUOTATION MARK
+    8220,   # 0x93  0x201C  LEFT DOUBLE QUOTATION MARK
+    8221,   # 0x94  0x201D  RIGHT DOUBLE QUOTATION MARK
+    8226,   # 0x95  0x2022  BULLET
+    8211,   # 0x96  0x2013  EN DASH
+    8212,   # 0x97  0x2014  EM DASH
+    732,    # 0x98  0x02DC  SMALL TILDE
+    8482,   # 0x99  0x2122  TRADE MARK SIGN
+    353,    # 0x9A  0x0161  LATIN SMALL LETTER S WITH CARON
+    8250,   # 0x9B  0x203A  SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
+    339,    # 0x9C  0x0153  LATIN SMALL LIGATURE OE
+    65533,  # 0x9D          UNDEFINED
+    382,    # 0x9E  0x017E  LATIN SMALL LETTER Z WITH CARON
+    376     # 0x9F  0x0178  LATIN CAPITAL LETTER Y WITH DIAERESIS
+)
+
+xmlEntities = frozenset(['lt;', 'gt;', 'amp;', 'apos;', 'quot;'])
+
+entities = {
+    "AElig": "\xc6",
+    "AElig;": "\xc6",
+    "AMP": "&",
+    "AMP;": "&",
+    "Aacute": "\xc1",
+    "Aacute;": "\xc1",
+    "Abreve;": "\u0102",
+    "Acirc": "\xc2",
+    "Acirc;": "\xc2",
+    "Acy;": "\u0410",
+    "Afr;": "\U0001d504",
+    "Agrave": "\xc0",
+    "Agrave;": "\xc0",
+    "Alpha;": "\u0391",
+    "Amacr;": "\u0100",
+    "And;": "\u2a53",
+    "Aogon;": "\u0104",
+    "Aopf;": "\U0001d538",
+    "ApplyFunction;": "\u2061",
+    "Aring": "\xc5",
+    "Aring;": "\xc5",
+    "Ascr;": "\U0001d49c",
+    "Assign;": "\u2254",
+    "Atilde": "\xc3",
+    "Atilde;": "\xc3",
+    "Auml": "\xc4",
+    "Auml;": "\xc4",
+    "Backslash;": "\u2216",
+    "Barv;": "\u2ae7",
+    "Barwed;": "\u2306",
+    "Bcy;": "\u0411",
+    "Because;": "\u2235",
+    "Bernoullis;": "\u212c",
+    "Beta;": "\u0392",
+    "Bfr;": "\U0001d505",
+    "Bopf;": "\U0001d539",
+    "Breve;": "\u02d8",
+    "Bscr;": "\u212c",
+    "Bumpeq;": "\u224e",
+    "CHcy;": "\u0427",
+    "COPY": "\xa9",
+    "COPY;": "\xa9",
+    "Cacute;": "\u0106",
+    "Cap;": "\u22d2",
+    "CapitalDifferentialD;": "\u2145",
+    "Cayleys;": "\u212d",
+    "Ccaron;": "\u010c",
+    "Ccedil": "\xc7",
+    "Ccedil;": "\xc7",
+    "Ccirc;": "\u0108",
+    "Cconint;": "\u2230",
+    "Cdot;": "\u010a",
+    "Cedilla;": "\xb8",
+    "CenterDot;": "\xb7",
+    "Cfr;": "\u212d",
+    "Chi;": "\u03a7",
+    "CircleDot;": "\u2299",
+    "CircleMinus;": "\u2296",
+    "CirclePlus;": "\u2295",
+    "CircleTimes;": "\u2297",
+    "ClockwiseContourIntegral;": "\u2232",
+    "CloseCurlyDoubleQuote;": "\u201d",
+    "CloseCurlyQuote;": "\u2019",
+    "Colon;": "\u2237",
+    "Colone;": "\u2a74",
+    "Congruent;": "\u2261",
+    "Conint;": "\u222f",
+    "ContourIntegral;": "\u222e",
+    "Copf;": "\u2102",
+    "Coproduct;": "\u2210",
+    "CounterClockwiseContourIntegral;": "\u2233",
+    "Cross;": "\u2a2f",
+    "Cscr;": "\U0001d49e",
+    "Cup;": "\u22d3",
+    "CupCap;": "\u224d",
+    "DD;": "\u2145",
+    "DDotrahd;": "\u2911",
+    "DJcy;": "\u0402",
+    "DScy;": "\u0405",
+    "DZcy;": "\u040f",
+    "Dagger;": "\u2021",
+    "Darr;": "\u21a1",
+    "Dashv;": "\u2ae4",
+    "Dcaron;": "\u010e",
+    "Dcy;": "\u0414",
+    "Del;": "\u2207",
+    "Delta;": "\u0394",
+    "Dfr;": "\U0001d507",
+    "DiacriticalAcute;": "\xb4",
+    "DiacriticalDot;": "\u02d9",
+    "DiacriticalDoubleAcute;": "\u02dd",
+    "DiacriticalGrave;": "`",
+    "DiacriticalTilde;": "\u02dc",
+    "Diamond;": "\u22c4",
+    "DifferentialD;": "\u2146",
+    "Dopf;": "\U0001d53b",
+    "Dot;": "\xa8",
+    "DotDot;": "\u20dc",
+    "DotEqual;": "\u2250",
+    "DoubleContourIntegral;": "\u222f",
+    "DoubleDot;": "\xa8",
+    "DoubleDownArrow;": "\u21d3",
+    "DoubleLeftArrow;": "\u21d0",
+    "DoubleLeftRightArrow;": "\u21d4",
+    "DoubleLeftTee;": "\u2ae4",
+    "DoubleLongLeftArrow;": "\u27f8",
+    "DoubleLongLeftRightArrow;": "\u27fa",
+    "DoubleLongRightArrow;": "\u27f9",
+    "DoubleRightArrow;": "\u21d2",
+    "DoubleRightTee;": "\u22a8",
+    "DoubleUpArrow;": "\u21d1",
+    "DoubleUpDownArrow;": "\u21d5",
+    "DoubleVerticalBar;": "\u2225",
+    "DownArrow;": "\u2193",
+    "DownArrowBar;": "\u2913",
+    "DownArrowUpArrow;": "\u21f5",
+    "DownBreve;": "\u0311",
+    "DownLeftRightVector;": "\u2950",
+    "DownLeftTeeVector;": "\u295e",
+    "DownLeftVector;": "\u21bd",
+    "DownLeftVectorBar;": "\u2956",
+    "DownRightTeeVector;": "\u295f",
+    "DownRightVector;": "\u21c1",
+    "DownRightVectorBar;": "\u2957",
+    "DownTee;": "\u22a4",
+    "DownTeeArrow;": "\u21a7",
+    "Downarrow;": "\u21d3",
+    "Dscr;": "\U0001d49f",
+    "Dstrok;": "\u0110",
+    "ENG;": "\u014a",
+    "ETH": "\xd0",
+    "ETH;": "\xd0",
+    "Eacute": "\xc9",
+    "Eacute;": "\xc9",
+    "Ecaron;": "\u011a",
+    "Ecirc": "\xca",
+    "Ecirc;": "\xca",
+    "Ecy;": "\u042d",
+    "Edot;": "\u0116",
+    "Efr;": "\U0001d508",
+    "Egrave": "\xc8",
+    "Egrave;": "\xc8",
+    "Element;": "\u2208",
+    "Emacr;": "\u0112",
+    "EmptySmallSquare;": "\u25fb",
+    "EmptyVerySmallSquare;": "\u25ab",
+    "Eogon;": "\u0118",
+    "Eopf;": "\U0001d53c",
+    "Epsilon;": "\u0395",
+    "Equal;": "\u2a75",
+    "EqualTilde;": "\u2242",
+    "Equilibrium;": "\u21cc",
+    "Escr;": "\u2130",
+    "Esim;": "\u2a73",
+    "Eta;": "\u0397",
+    "Euml": "\xcb",
+    "Euml;": "\xcb",
+    "Exists;": "\u2203",
+    "ExponentialE;": "\u2147",
+    "Fcy;": "\u0424",
+    "Ffr;": "\U0001d509",
+    "FilledSmallSquare;": "\u25fc",
+    "FilledVerySmallSquare;": "\u25aa",
+    "Fopf;": "\U0001d53d",
+    "ForAll;": "\u2200",
+    "Fouriertrf;": "\u2131",
+    "Fscr;": "\u2131",
+    "GJcy;": "\u0403",
+    "GT": ">",
+    "GT;": ">",
+    "Gamma;": "\u0393",
+    "Gammad;": "\u03dc",
+    "Gbreve;": "\u011e",
+    "Gcedil;": "\u0122",
+    "Gcirc;": "\u011c",
+    "Gcy;": "\u0413",
+    "Gdot;": "\u0120",
+    "Gfr;": "\U0001d50a",
+    "Gg;": "\u22d9",
+    "Gopf;": "\U0001d53e",
+    "GreaterEqual;": "\u2265",
+    "GreaterEqualLess;": "\u22db",
+    "GreaterFullEqual;": "\u2267",
+    "GreaterGreater;": "\u2aa2",
+    "GreaterLess;": "\u2277",
+    "GreaterSlantEqual;": "\u2a7e",
+    "GreaterTilde;": "\u2273",
+    "Gscr;": "\U0001d4a2",
+    "Gt;": "\u226b",
+    "HARDcy;": "\u042a",
+    "Hacek;": "\u02c7",
+    "Hat;": "^",
+    "Hcirc;": "\u0124",
+    "Hfr;": "\u210c",
+    "HilbertSpace;": "\u210b",
+    "Hopf;": "\u210d",
+    "HorizontalLine;": "\u2500",
+    "Hscr;": "\u210b",
+    "Hstrok;": "\u0126",
+    "HumpDownHump;": "\u224e",
+    "HumpEqual;": "\u224f",
+    "IEcy;": "\u0415",
+    "IJlig;": "\u0132",
+    "IOcy;": "\u0401",
+    "Iacute": "\xcd",
+    "Iacute;": "\xcd",
+    "Icirc": "\xce",
+    "Icirc;": "\xce",
+    "Icy;": "\u0418",
+    "Idot;": "\u0130",
+    "Ifr;": "\u2111",
+    "Igrave": "\xcc",
+    "Igrave;": "\xcc",
+    "Im;": "\u2111",
+    "Imacr;": "\u012a",
+    "ImaginaryI;": "\u2148",
+    "Implies;": "\u21d2",
+    "Int;": "\u222c",
+    "Integral;": "\u222b",
+    "Intersection;": "\u22c2",
+    "InvisibleComma;": "\u2063",
+    "InvisibleTimes;": "\u2062",
+    "Iogon;": "\u012e",
+    "Iopf;": "\U0001d540",
+    "Iota;": "\u0399",
+    "Iscr;": "\u2110",
+    "Itilde;": "\u0128",
+    "Iukcy;": "\u0406",
+    "Iuml": "\xcf",
+    "Iuml;": "\xcf",
+    "Jcirc;": "\u0134",
+    "Jcy;": "\u0419",
+    "Jfr;": "\U0001d50d",
+    "Jopf;": "\U0001d541",
+    "Jscr;": "\U0001d4a5",
+    "Jsercy;": "\u0408",
+    "Jukcy;": "\u0404",
+    "KHcy;": "\u0425",
+    "KJcy;": "\u040c",
+    "Kappa;": "\u039a",
+    "Kcedil;": "\u0136",
+    "Kcy;": "\u041a",
+    "Kfr;": "\U0001d50e",
+    "Kopf;": "\U0001d542",
+    "Kscr;": "\U0001d4a6",
+    "LJcy;": "\u0409",
+    "LT": "<",
+    "LT;": "<",
+    "Lacute;": "\u0139",
+    "Lambda;": "\u039b",
+    "Lang;": "\u27ea",
+    "Laplacetrf;": "\u2112",
+    "Larr;": "\u219e",
+    "Lcaron;": "\u013d",
+    "Lcedil;": "\u013b",
+    "Lcy;": "\u041b",
+    "LeftAngleBracket;": "\u27e8",
+    "LeftArrow;": "\u2190",
+    "LeftArrowBar;": "\u21e4",
+    "LeftArrowRightArrow;": "\u21c6",
+    "LeftCeiling;": "\u2308",
+    "LeftDoubleBracket;": "\u27e6",
+    "LeftDownTeeVector;": "\u2961",
+    "LeftDownVector;": "\u21c3",
+    "LeftDownVectorBar;": "\u2959",
+    "LeftFloor;": "\u230a",
+    "LeftRightArrow;": "\u2194",
+    "LeftRightVector;": "\u294e",
+    "LeftTee;": "\u22a3",
+    "LeftTeeArrow;": "\u21a4",
+    "LeftTeeVector;": "\u295a",
+    "LeftTriangle;": "\u22b2",
+    "LeftTriangleBar;": "\u29cf",
+    "LeftTriangleEqual;": "\u22b4",
+    "LeftUpDownVector;": "\u2951",
+    "LeftUpTeeVector;": "\u2960",
+    "LeftUpVector;": "\u21bf",
+    "LeftUpVectorBar;": "\u2958",
+    "LeftVector;": "\u21bc",
+    "LeftVectorBar;": "\u2952",
+    "Leftarrow;": "\u21d0",
+    "Leftrightarrow;": "\u21d4",
+    "LessEqualGreater;": "\u22da",
+    "LessFullEqual;": "\u2266",
+    "LessGreater;": "\u2276",
+    "LessLess;": "\u2aa1",
+    "LessSlantEqual;": "\u2a7d",
+    "LessTilde;": "\u2272",
+    "Lfr;": "\U0001d50f",
+    "Ll;": "\u22d8",
+    "Lleftarrow;": "\u21da",
+    "Lmidot;": "\u013f",
+    "LongLeftArrow;": "\u27f5",
+    "LongLeftRightArrow;": "\u27f7",
+    "LongRightArrow;": "\u27f6",
+    "Longleftarrow;": "\u27f8",
+    "Longleftrightarrow;": "\u27fa",
+    "Longrightarrow;": "\u27f9",
+    "Lopf;": "\U0001d543",
+    "LowerLeftArrow;": "\u2199",
+    "LowerRightArrow;": "\u2198",
+    "Lscr;": "\u2112",
+    "Lsh;": "\u21b0",
+    "Lstrok;": "\u0141",
+    "Lt;": "\u226a",
+    "Map;": "\u2905",
+    "Mcy;": "\u041c",
+    "MediumSpace;": "\u205f",
+    "Mellintrf;": "\u2133",
+    "Mfr;": "\U0001d510",
+    "MinusPlus;": "\u2213",
+    "Mopf;": "\U0001d544",
+    "Mscr;": "\u2133",
+    "Mu;": "\u039c",
+    "NJcy;": "\u040a",
+    "Nacute;": "\u0143",
+    "Ncaron;": "\u0147",
+    "Ncedil;": "\u0145",
+    "Ncy;": "\u041d",
+    "NegativeMediumSpace;": "\u200b",
+    "NegativeThickSpace;": "\u200b",
+    "NegativeThinSpace;": "\u200b",
+    "NegativeVeryThinSpace;": "\u200b",
+    "NestedGreaterGreater;": "\u226b",
+    "NestedLessLess;": "\u226a",
+    "NewLine;": "\n",
+    "Nfr;": "\U0001d511",
+    "NoBreak;": "\u2060",
+    "NonBreakingSpace;": "\xa0",
+    "Nopf;": "\u2115",
+    "Not;": "\u2aec",
+    "NotCongruent;": "\u2262",
+    "NotCupCap;": "\u226d",
+    "NotDoubleVerticalBar;": "\u2226",
+    "NotElement;": "\u2209",
+    "NotEqual;": "\u2260",
+    "NotEqualTilde;": "\u2242\u0338",
+    "NotExists;": "\u2204",
+    "NotGreater;": "\u226f",
+    "NotGreaterEqual;": "\u2271",
+    "NotGreaterFullEqual;": "\u2267\u0338",
+    "NotGreaterGreater;": "\u226b\u0338",
+    "NotGreaterLess;": "\u2279",
+    "NotGreaterSlantEqual;": "\u2a7e\u0338",
+    "NotGreaterTilde;": "\u2275",
+    "NotHumpDownHump;": "\u224e\u0338",
+    "NotHumpEqual;": "\u224f\u0338",
+    "NotLeftTriangle;": "\u22ea",
+    "NotLeftTriangleBar;": "\u29cf\u0338",
+    "NotLeftTriangleEqual;": "\u22ec",
+    "NotLess;": "\u226e",
+    "NotLessEqual;": "\u2270",
+    "NotLessGreater;": "\u2278",
+    "NotLessLess;": "\u226a\u0338",
+    "NotLessSlantEqual;": "\u2a7d\u0338",
+    "NotLessTilde;": "\u2274",
+    "NotNestedGreaterGreater;": "\u2aa2\u0338",
+    "NotNestedLessLess;": "\u2aa1\u0338",
+    "NotPrecedes;": "\u2280",
+    "NotPrecedesEqual;": "\u2aaf\u0338",
+    "NotPrecedesSlantEqual;": "\u22e0",
+    "NotReverseElement;": "\u220c",
+    "NotRightTriangle;": "\u22eb",
+    "NotRightTriangleBar;": "\u29d0\u0338",
+    "NotRightTriangleEqual;": "\u22ed",
+    "NotSquareSubset;": "\u228f\u0338",
+    "NotSquareSubsetEqual;": "\u22e2",
+    "NotSquareSuperset;": "\u2290\u0338",
+    "NotSquareSupersetEqual;": "\u22e3",
+    "NotSubset;": "\u2282\u20d2",
+    "NotSubsetEqual;": "\u2288",
+    "NotSucceeds;": "\u2281",
+    "NotSucceedsEqual;": "\u2ab0\u0338",
+    "NotSucceedsSlantEqual;": "\u22e1",
+    "NotSucceedsTilde;": "\u227f\u0338",
+    "NotSuperset;": "\u2283\u20d2",
+    "NotSupersetEqual;": "\u2289",
+    "NotTilde;": "\u2241",
+    "NotTildeEqual;": "\u2244",
+    "NotTildeFullEqual;": "\u2247",
+    "NotTildeTilde;": "\u2249",
+    "NotVerticalBar;": "\u2224",
+    "Nscr;": "\U0001d4a9",
+    "Ntilde": "\xd1",
+    "Ntilde;": "\xd1",
+    "Nu;": "\u039d",
+    "OElig;": "\u0152",
+    "Oacute": "\xd3",
+    "Oacute;": "\xd3",
+    "Ocirc": "\xd4",
+    "Ocirc;": "\xd4",
+    "Ocy;": "\u041e",
+    "Odblac;": "\u0150",
+    "Ofr;": "\U0001d512",
+    "Ograve": "\xd2",
+    "Ograve;": "\xd2",
+    "Omacr;": "\u014c",
+    "Omega;": "\u03a9",
+    "Omicron;": "\u039f",
+    "Oopf;": "\U0001d546",
+    "OpenCurlyDoubleQuote;": "\u201c",
+    "OpenCurlyQuote;": "\u2018",
+    "Or;": "\u2a54",
+    "Oscr;": "\U0001d4aa",
+    "Oslash": "\xd8",
+    "Oslash;": "\xd8",
+    "Otilde": "\xd5",
+    "Otilde;": "\xd5",
+    "Otimes;": "\u2a37",
+    "Ouml": "\xd6",
+    "Ouml;": "\xd6",
+    "OverBar;": "\u203e",
+    "OverBrace;": "\u23de",
+    "OverBracket;": "\u23b4",
+    "OverParenthesis;": "\u23dc",
+    "PartialD;": "\u2202",
+    "Pcy;": "\u041f",
+    "Pfr;": "\U0001d513",
+    "Phi;": "\u03a6",
+    "Pi;": "\u03a0",
+    "PlusMinus;": "\xb1",
+    "Poincareplane;": "\u210c",
+    "Popf;": "\u2119",
+    "Pr;": "\u2abb",
+    "Precedes;": "\u227a",
+    "PrecedesEqual;": "\u2aaf",
+    "PrecedesSlantEqual;": "\u227c",
+    "PrecedesTilde;": "\u227e",
+    "Prime;": "\u2033",
+    "Product;": "\u220f",
+    "Proportion;": "\u2237",
+    "Proportional;": "\u221d",
+    "Pscr;": "\U0001d4ab",
+    "Psi;": "\u03a8",
+    "QUOT": "\"",
+    "QUOT;": "\"",
+    "Qfr;": "\U0001d514",
+    "Qopf;": "\u211a",
+    "Qscr;": "\U0001d4ac",
+    "RBarr;": "\u2910",
+    "REG": "\xae",
+    "REG;": "\xae",
+    "Racute;": "\u0154",
+    "Rang;": "\u27eb",
+    "Rarr;": "\u21a0",
+    "Rarrtl;": "\u2916",
+    "Rcaron;": "\u0158",
+    "Rcedil;": "\u0156",
+    "Rcy;": "\u0420",
+    "Re;": "\u211c",
+    "ReverseElement;": "\u220b",
+    "ReverseEquilibrium;": "\u21cb",
+    "ReverseUpEquilibrium;": "\u296f",
+    "Rfr;": "\u211c",
+    "Rho;": "\u03a1",
+    "RightAngleBracket;": "\u27e9",
+    "RightArrow;": "\u2192",
+    "RightArrowBar;": "\u21e5",
+    "RightArrowLeftArrow;": "\u21c4",
+    "RightCeiling;": "\u2309",
+    "RightDoubleBracket;": "\u27e7",
+    "RightDownTeeVector;": "\u295d",
+    "RightDownVector;": "\u21c2",
+    "RightDownVectorBar;": "\u2955",
+    "RightFloor;": "\u230b",
+    "RightTee;": "\u22a2",
+    "RightTeeArrow;": "\u21a6",
+    "RightTeeVector;": "\u295b",
+    "RightTriangle;": "\u22b3",
+    "RightTriangleBar;": "\u29d0",
+    "RightTriangleEqual;": "\u22b5",
+    "RightUpDownVector;": "\u294f",
+    "RightUpTeeVector;": "\u295c",
+    "RightUpVector;": "\u21be",
+    "RightUpVectorBar;": "\u2954",
+    "RightVector;": "\u21c0",
+    "RightVectorBar;": "\u2953",
+    "Rightarrow;": "\u21d2",
+    "Ropf;": "\u211d",
+    "RoundImplies;": "\u2970",
+    "Rrightarrow;": "\u21db",
+    "Rscr;": "\u211b",
+    "Rsh;": "\u21b1",
+    "RuleDelayed;": "\u29f4",
+    "SHCHcy;": "\u0429",
+    "SHcy;": "\u0428",
+    "SOFTcy;": "\u042c",
+    "Sacute;": "\u015a",
+    "Sc;": "\u2abc",
+    "Scaron;": "\u0160",
+    "Scedil;": "\u015e",
+    "Scirc;": "\u015c",
+    "Scy;": "\u0421",
+    "Sfr;": "\U0001d516",
+    "ShortDownArrow;": "\u2193",
+    "ShortLeftArrow;": "\u2190",
+    "ShortRightArrow;": "\u2192",
+    "ShortUpArrow;": "\u2191",
+    "Sigma;": "\u03a3",
+    "SmallCircle;": "\u2218",
+    "Sopf;": "\U0001d54a",
+    "Sqrt;": "\u221a",
+    "Square;": "\u25a1",
+    "SquareIntersection;": "\u2293",
+    "SquareSubset;": "\u228f",
+    "SquareSubsetEqual;": "\u2291",
+    "SquareSuperset;": "\u2290",
+    "SquareSupersetEqual;": "\u2292",
+    "SquareUnion;": "\u2294",
+    "Sscr;": "\U0001d4ae",
+    "Star;": "\u22c6",
+    "Sub;": "\u22d0",
+    "Subset;": "\u22d0",
+    "SubsetEqual;": "\u2286",
+    "Succeeds;": "\u227b",
+    "SucceedsEqual;": "\u2ab0",
+    "SucceedsSlantEqual;": "\u227d",
+    "SucceedsTilde;": "\u227f",
+    "SuchThat;": "\u220b",
+    "Sum;": "\u2211",
+    "Sup;": "\u22d1",
+    "Superset;": "\u2283",
+    "SupersetEqual;": "\u2287",
+    "Supset;": "\u22d1",
+    "THORN": "\xde",
+    "THORN;": "\xde",
+    "TRADE;": "\u2122",
+    "TSHcy;": "\u040b",
+    "TScy;": "\u0426",
+    "Tab;": "\t",
+    "Tau;": "\u03a4",
+    "Tcaron;": "\u0164",
+    "Tcedil;": "\u0162",
+    "Tcy;": "\u0422",
+    "Tfr;": "\U0001d517",
+    "Therefore;": "\u2234",
+    "Theta;": "\u0398",
+    "ThickSpace;": "\u205f\u200a",
+    "ThinSpace;": "\u2009",
+    "Tilde;": "\u223c",
+    "TildeEqual;": "\u2243",
+    "TildeFullEqual;": "\u2245",
+    "TildeTilde;": "\u2248",
+    "Topf;": "\U0001d54b",
+    "TripleDot;": "\u20db",
+    "Tscr;": "\U0001d4af",
+    "Tstrok;": "\u0166",
+    "Uacute": "\xda",
+    "Uacute;": "\xda",
+    "Uarr;": "\u219f",
+    "Uarrocir;": "\u2949",
+    "Ubrcy;": "\u040e",
+    "Ubreve;": "\u016c",
+    "Ucirc": "\xdb",
+    "Ucirc;": "\xdb",
+    "Ucy;": "\u0423",
+    "Udblac;": "\u0170",
+    "Ufr;": "\U0001d518",
+    "Ugrave": "\xd9",
+    "Ugrave;": "\xd9",
+    "Umacr;": "\u016a",
+    "UnderBar;": "_",
+    "UnderBrace;": "\u23df",
+    "UnderBracket;": "\u23b5",
+    "UnderParenthesis;": "\u23dd",
+    "Union;": "\u22c3",
+    "UnionPlus;": "\u228e",
+    "Uogon;": "\u0172",
+    "Uopf;": "\U0001d54c",
+    "UpArrow;": "\u2191",
+    "UpArrowBar;": "\u2912",
+    "UpArrowDownArrow;": "\u21c5",
+    "UpDownArrow;": "\u2195",
+    "UpEquilibrium;": "\u296e",
+    "UpTee;": "\u22a5",
+    "UpTeeArrow;": "\u21a5",
+    "Uparrow;": "\u21d1",
+    "Updownarrow;": "\u21d5",
+    "UpperLeftArrow;": "\u2196",
+    "UpperRightArrow;": "\u2197",
+    "Upsi;": "\u03d2",
+    "Upsilon;": "\u03a5",
+    "Uring;": "\u016e",
+    "Uscr;": "\U0001d4b0",
+    "Utilde;": "\u0168",
+    "Uuml": "\xdc",
+    "Uuml;": "\xdc",
+    "VDash;": "\u22ab",
+    "Vbar;": "\u2aeb",
+    "Vcy;": "\u0412",
+    "Vdash;": "\u22a9",
+    "Vdashl;": "\u2ae6",
+    "Vee;": "\u22c1",
+    "Verbar;": "\u2016",
+    "Vert;": "\u2016",
+    "VerticalBar;": "\u2223",
+    "VerticalLine;": "|",
+    "VerticalSeparator;": "\u2758",
+    "VerticalTilde;": "\u2240",
+    "VeryThinSpace;": "\u200a",
+    "Vfr;": "\U0001d519",
+    "Vopf;": "\U0001d54d",
+    "Vscr;": "\U0001d4b1",
+    "Vvdash;": "\u22aa",
+    "Wcirc;": "\u0174",
+    "Wedge;": "\u22c0",
+    "Wfr;": "\U0001d51a",
+    "Wopf;": "\U0001d54e",
+    "Wscr;": "\U0001d4b2",
+    "Xfr;": "\U0001d51b",
+    "Xi;": "\u039e",
+    "Xopf;": "\U0001d54f",
+    "Xscr;": "\U0001d4b3",
+    "YAcy;": "\u042f",
+    "YIcy;": "\u0407",
+    "YUcy;": "\u042e",
+    "Yacute": "\xdd",
+    "Yacute;": "\xdd",
+    "Ycirc;": "\u0176",
+    "Ycy;": "\u042b",
+    "Yfr;": "\U0001d51c",
+    "Yopf;": "\U0001d550",
+    "Yscr;": "\U0001d4b4",
+    "Yuml;": "\u0178",
+    "ZHcy;": "\u0416",
+    "Zacute;": "\u0179",
+    "Zcaron;": "\u017d",
+    "Zcy;": "\u0417",
+    "Zdot;": "\u017b",
+    "ZeroWidthSpace;": "\u200b",
+    "Zeta;": "\u0396",
+    "Zfr;": "\u2128",
+    "Zopf;": "\u2124",
+    "Zscr;": "\U0001d4b5",
+    "aacute": "\xe1",
+    "aacute;": "\xe1",
+    "abreve;": "\u0103",
+    "ac;": "\u223e",
+    "acE;": "\u223e\u0333",
+    "acd;": "\u223f",
+    "acirc": "\xe2",
+    "acirc;": "\xe2",
+    "acute": "\xb4",
+    "acute;": "\xb4",
+    "acy;": "\u0430",
+    "aelig": "\xe6",
+    "aelig;": "\xe6",
+    "af;": "\u2061",
+    "afr;": "\U0001d51e",
+    "agrave": "\xe0",
+    "agrave;": "\xe0",
+    "alefsym;": "\u2135",
+    "aleph;": "\u2135",
+    "alpha;": "\u03b1",
+    "amacr;": "\u0101",
+    "amalg;": "\u2a3f",
+    "amp": "&",
+    "amp;": "&",
+    "and;": "\u2227",
+    "andand;": "\u2a55",
+    "andd;": "\u2a5c",
+    "andslope;": "\u2a58",
+    "andv;": "\u2a5a",
+    "ang;": "\u2220",
+    "ange;": "\u29a4",
+    "angle;": "\u2220",
+    "angmsd;": "\u2221",
+    "angmsdaa;": "\u29a8",
+    "angmsdab;": "\u29a9",
+    "angmsdac;": "\u29aa",
+    "angmsdad;": "\u29ab",
+    "angmsdae;": "\u29ac",
+    "angmsdaf;": "\u29ad",
+    "angmsdag;": "\u29ae",
+    "angmsdah;": "\u29af",
+    "angrt;": "\u221f",
+    "angrtvb;": "\u22be",
+    "angrtvbd;": "\u299d",
+    "angsph;": "\u2222",
+    "angst;": "\xc5",
+    "angzarr;": "\u237c",
+    "aogon;": "\u0105",
+    "aopf;": "\U0001d552",
+    "ap;": "\u2248",
+    "apE;": "\u2a70",
+    "apacir;": "\u2a6f",
+    "ape;": "\u224a",
+    "apid;": "\u224b",
+    "apos;": "'",
+    "approx;": "\u2248",
+    "approxeq;": "\u224a",
+    "aring": "\xe5",
+    "aring;": "\xe5",
+    "ascr;": "\U0001d4b6",
+    "ast;": "*",
+    "asymp;": "\u2248",
+    "asympeq;": "\u224d",
+    "atilde": "\xe3",
+    "atilde;": "\xe3",
+    "auml": "\xe4",
+    "auml;": "\xe4",
+    "awconint;": "\u2233",
+    "awint;": "\u2a11",
+    "bNot;": "\u2aed",
+    "backcong;": "\u224c",
+    "backepsilon;": "\u03f6",
+    "backprime;": "\u2035",
+    "backsim;": "\u223d",
+    "backsimeq;": "\u22cd",
+    "barvee;": "\u22bd",
+    "barwed;": "\u2305",
+    "barwedge;": "\u2305",
+    "bbrk;": "\u23b5",
+    "bbrktbrk;": "\u23b6",
+    "bcong;": "\u224c",
+    "bcy;": "\u0431",
+    "bdquo;": "\u201e",
+    "becaus;": "\u2235",
+    "because;": "\u2235",
+    "bemptyv;": "\u29b0",
+    "bepsi;": "\u03f6",
+    "bernou;": "\u212c",
+    "beta;": "\u03b2",
+    "beth;": "\u2136",
+    "between;": "\u226c",
+    "bfr;": "\U0001d51f",
+    "bigcap;": "\u22c2",
+    "bigcirc;": "\u25ef",
+    "bigcup;": "\u22c3",
+    "bigodot;": "\u2a00",
+    "bigoplus;": "\u2a01",
+    "bigotimes;": "\u2a02",
+    "bigsqcup;": "\u2a06",
+    "bigstar;": "\u2605",
+    "bigtriangledown;": "\u25bd",
+    "bigtriangleup;": "\u25b3",
+    "biguplus;": "\u2a04",
+    "bigvee;": "\u22c1",
+    "bigwedge;": "\u22c0",
+    "bkarow;": "\u290d",
+    "blacklozenge;": "\u29eb",
+    "blacksquare;": "\u25aa",
+    "blacktriangle;": "\u25b4",
+    "blacktriangledown;": "\u25be",
+    "blacktriangleleft;": "\u25c2",
+    "blacktriangleright;": "\u25b8",
+    "blank;": "\u2423",
+    "blk12;": "\u2592",
+    "blk14;": "\u2591",
+    "blk34;": "\u2593",
+    "block;": "\u2588",
+    "bne;": "=\u20e5",
+    "bnequiv;": "\u2261\u20e5",
+    "bnot;": "\u2310",
+    "bopf;": "\U0001d553",
+    "bot;": "\u22a5",
+    "bottom;": "\u22a5",
+    "bowtie;": "\u22c8",
+    "boxDL;": "\u2557",
+    "boxDR;": "\u2554",
+    "boxDl;": "\u2556",
+    "boxDr;": "\u2553",
+    "boxH;": "\u2550",
+    "boxHD;": "\u2566",
+    "boxHU;": "\u2569",
+    "boxHd;": "\u2564",
+    "boxHu;": "\u2567",
+    "boxUL;": "\u255d",
+    "boxUR;": "\u255a",
+    "boxUl;": "\u255c",
+    "boxUr;": "\u2559",
+    "boxV;": "\u2551",
+    "boxVH;": "\u256c",
+    "boxVL;": "\u2563",
+    "boxVR;": "\u2560",
+    "boxVh;": "\u256b",
+    "boxVl;": "\u2562",
+    "boxVr;": "\u255f",
+    "boxbox;": "\u29c9",
+    "boxdL;": "\u2555",
+    "boxdR;": "\u2552",
+    "boxdl;": "\u2510",
+    "boxdr;": "\u250c",
+    "boxh;": "\u2500",
+    "boxhD;": "\u2565",
+    "boxhU;": "\u2568",
+    "boxhd;": "\u252c",
+    "boxhu;": "\u2534",
+    "boxminus;": "\u229f",
+    "boxplus;": "\u229e",
+    "boxtimes;": "\u22a0",
+    "boxuL;": "\u255b",
+    "boxuR;": "\u2558",
+    "boxul;": "\u2518",
+    "boxur;": "\u2514",
+    "boxv;": "\u2502",
+    "boxvH;": "\u256a",
+    "boxvL;": "\u2561",
+    "boxvR;": "\u255e",
+    "boxvh;": "\u253c",
+    "boxvl;": "\u2524",
+    "boxvr;": "\u251c",
+    "bprime;": "\u2035",
+    "breve;": "\u02d8",
+    "brvbar": "\xa6",
+    "brvbar;": "\xa6",
+    "bscr;": "\U0001d4b7",
+    "bsemi;": "\u204f",
+    "bsim;": "\u223d",
+    "bsime;": "\u22cd",
+    "bsol;": "\\",
+    "bsolb;": "\u29c5",
+    "bsolhsub;": "\u27c8",
+    "bull;": "\u2022",
+    "bullet;": "\u2022",
+    "bump;": "\u224e",
+    "bumpE;": "\u2aae",
+    "bumpe;": "\u224f",
+    "bumpeq;": "\u224f",
+    "cacute;": "\u0107",
+    "cap;": "\u2229",
+    "capand;": "\u2a44",
+    "capbrcup;": "\u2a49",
+    "capcap;": "\u2a4b",
+    "capcup;": "\u2a47",
+    "capdot;": "\u2a40",
+    "caps;": "\u2229\ufe00",
+    "caret;": "\u2041",
+    "caron;": "\u02c7",
+    "ccaps;": "\u2a4d",
+    "ccaron;": "\u010d",
+    "ccedil": "\xe7",
+    "ccedil;": "\xe7",
+    "ccirc;": "\u0109",
+    "ccups;": "\u2a4c",
+    "ccupssm;": "\u2a50",
+    "cdot;": "\u010b",
+    "cedil": "\xb8",
+    "cedil;": "\xb8",
+    "cemptyv;": "\u29b2",
+    "cent": "\xa2",
+    "cent;": "\xa2",
+    "centerdot;": "\xb7",
+    "cfr;": "\U0001d520",
+    "chcy;": "\u0447",
+    "check;": "\u2713",
+    "checkmark;": "\u2713",
+    "chi;": "\u03c7",
+    "cir;": "\u25cb",
+    "cirE;": "\u29c3",
+    "circ;": "\u02c6",
+    "circeq;": "\u2257",
+    "circlearrowleft;": "\u21ba",
+    "circlearrowright;": "\u21bb",
+    "circledR;": "\xae",
+    "circledS;": "\u24c8",
+    "circledast;": "\u229b",
+    "circledcirc;": "\u229a",
+    "circleddash;": "\u229d",
+    "cire;": "\u2257",
+    "cirfnint;": "\u2a10",
+    "cirmid;": "\u2aef",
+    "cirscir;": "\u29c2",
+    "clubs;": "\u2663",
+    "clubsuit;": "\u2663",
+    "colon;": ":",
+    "colone;": "\u2254",
+    "coloneq;": "\u2254",
+    "comma;": ",",
+    "commat;": "@",
+    "comp;": "\u2201",
+    "compfn;": "\u2218",
+    "complement;": "\u2201",
+    "complexes;": "\u2102",
+    "cong;": "\u2245",
+    "congdot;": "\u2a6d",
+    "conint;": "\u222e",
+    "copf;": "\U0001d554",
+    "coprod;": "\u2210",
+    "copy": "\xa9",
+    "copy;": "\xa9",
+    "copysr;": "\u2117",
+    "crarr;": "\u21b5",
+    "cross;": "\u2717",
+    "cscr;": "\U0001d4b8",
+    "csub;": "\u2acf",
+    "csube;": "\u2ad1",
+    "csup;": "\u2ad0",
+    "csupe;": "\u2ad2",
+    "ctdot;": "\u22ef",
+    "cudarrl;": "\u2938",
+    "cudarrr;": "\u2935",
+    "cuepr;": "\u22de",
+    "cuesc;": "\u22df",
+    "cularr;": "\u21b6",
+    "cularrp;": "\u293d",
+    "cup;": "\u222a",
+    "cupbrcap;": "\u2a48",
+    "cupcap;": "\u2a46",
+    "cupcup;": "\u2a4a",
+    "cupdot;": "\u228d",
+    "cupor;": "\u2a45",
+    "cups;": "\u222a\ufe00",
+    "curarr;": "\u21b7",
+    "curarrm;": "\u293c",
+    "curlyeqprec;": "\u22de",
+    "curlyeqsucc;": "\u22df",
+    "curlyvee;": "\u22ce",
+    "curlywedge;": "\u22cf",
+    "curren": "\xa4",
+    "curren;": "\xa4",
+    "curvearrowleft;": "\u21b6",
+    "curvearrowright;": "\u21b7",
+    "cuvee;": "\u22ce",
+    "cuwed;": "\u22cf",
+    "cwconint;": "\u2232",
+    "cwint;": "\u2231",
+    "cylcty;": "\u232d",
+    "dArr;": "\u21d3",
+    "dHar;": "\u2965",
+    "dagger;": "\u2020",
+    "daleth;": "\u2138",
+    "darr;": "\u2193",
+    "dash;": "\u2010",
+    "dashv;": "\u22a3",
+    "dbkarow;": "\u290f",
+    "dblac;": "\u02dd",
+    "dcaron;": "\u010f",
+    "dcy;": "\u0434",
+    "dd;": "\u2146",
+    "ddagger;": "\u2021",
+    "ddarr;": "\u21ca",
+    "ddotseq;": "\u2a77",
+    "deg": "\xb0",
+    "deg;": "\xb0",
+    "delta;": "\u03b4",
+    "demptyv;": "\u29b1",
+    "dfisht;": "\u297f",
+    "dfr;": "\U0001d521",
+    "dharl;": "\u21c3",
+    "dharr;": "\u21c2",
+    "diam;": "\u22c4",
+    "diamond;": "\u22c4",
+    "diamondsuit;": "\u2666",
+    "diams;": "\u2666",
+    "die;": "\xa8",
+    "digamma;": "\u03dd",
+    "disin;": "\u22f2",
+    "div;": "\xf7",
+    "divide": "\xf7",
+    "divide;": "\xf7",
+    "divideontimes;": "\u22c7",
+    "divonx;": "\u22c7",
+    "djcy;": "\u0452",
+    "dlcorn;": "\u231e",
+    "dlcrop;": "\u230d",
+    "dollar;": "$",
+    "dopf;": "\U0001d555",
+    "dot;": "\u02d9",
+    "doteq;": "\u2250",
+    "doteqdot;": "\u2251",
+    "dotminus;": "\u2238",
+    "dotplus;": "\u2214",
+    "dotsquare;": "\u22a1",
+    "doublebarwedge;": "\u2306",
+    "downarrow;": "\u2193",
+    "downdownarrows;": "\u21ca",
+    "downharpoonleft;": "\u21c3",
+    "downharpoonright;": "\u21c2",
+    "drbkarow;": "\u2910",
+    "drcorn;": "\u231f",
+    "drcrop;": "\u230c",
+    "dscr;": "\U0001d4b9",
+    "dscy;": "\u0455",
+    "dsol;": "\u29f6",
+    "dstrok;": "\u0111",
+    "dtdot;": "\u22f1",
+    "dtri;": "\u25bf",
+    "dtrif;": "\u25be",
+    "duarr;": "\u21f5",
+    "duhar;": "\u296f",
+    "dwangle;": "\u29a6",
+    "dzcy;": "\u045f",
+    "dzigrarr;": "\u27ff",
+    "eDDot;": "\u2a77",
+    "eDot;": "\u2251",
+    "eacute": "\xe9",
+    "eacute;": "\xe9",
+    "easter;": "\u2a6e",
+    "ecaron;": "\u011b",
+    "ecir;": "\u2256",
+    "ecirc": "\xea",
+    "ecirc;": "\xea",
+    "ecolon;": "\u2255",
+    "ecy;": "\u044d",
+    "edot;": "\u0117",
+    "ee;": "\u2147",
+    "efDot;": "\u2252",
+    "efr;": "\U0001d522",
+    "eg;": "\u2a9a",
+    "egrave": "\xe8",
+    "egrave;": "\xe8",
+    "egs;": "\u2a96",
+    "egsdot;": "\u2a98",
+    "el;": "\u2a99",
+    "elinters;": "\u23e7",
+    "ell;": "\u2113",
+    "els;": "\u2a95",
+    "elsdot;": "\u2a97",
+    "emacr;": "\u0113",
+    "empty;": "\u2205",
+    "emptyset;": "\u2205",
+    "emptyv;": "\u2205",
+    "emsp13;": "\u2004",
+    "emsp14;": "\u2005",
+    "emsp;": "\u2003",
+    "eng;": "\u014b",
+    "ensp;": "\u2002",
+    "eogon;": "\u0119",
+    "eopf;": "\U0001d556",
+    "epar;": "\u22d5",
+    "eparsl;": "\u29e3",
+    "eplus;": "\u2a71",
+    "epsi;": "\u03b5",
+    "epsilon;": "\u03b5",
+    "epsiv;": "\u03f5",
+    "eqcirc;": "\u2256",
+    "eqcolon;": "\u2255",
+    "eqsim;": "\u2242",
+    "eqslantgtr;": "\u2a96",
+    "eqslantless;": "\u2a95",
+    "equals;": "=",
+    "equest;": "\u225f",
+    "equiv;": "\u2261",
+    "equivDD;": "\u2a78",
+    "eqvparsl;": "\u29e5",
+    "erDot;": "\u2253",
+    "erarr;": "\u2971",
+    "escr;": "\u212f",
+    "esdot;": "\u2250",
+    "esim;": "\u2242",
+    "eta;": "\u03b7",
+    "eth": "\xf0",
+    "eth;": "\xf0",
+    "euml": "\xeb",
+    "euml;": "\xeb",
+    "euro;": "\u20ac",
+    "excl;": "!",
+    "exist;": "\u2203",
+    "expectation;": "\u2130",
+    "exponentiale;": "\u2147",
+    "fallingdotseq;": "\u2252",
+    "fcy;": "\u0444",
+    "female;": "\u2640",
+    "ffilig;": "\ufb03",
+    "fflig;": "\ufb00",
+    "ffllig;": "\ufb04",
+    "ffr;": "\U0001d523",
+    "filig;": "\ufb01",
+    "fjlig;": "fj",
+    "flat;": "\u266d",
+    "fllig;": "\ufb02",
+    "fltns;": "\u25b1",
+    "fnof;": "\u0192",
+    "fopf;": "\U0001d557",
+    "forall;": "\u2200",
+    "fork;": "\u22d4",
+    "forkv;": "\u2ad9",
+    "fpartint;": "\u2a0d",
+    "frac12": "\xbd",
+    "frac12;": "\xbd",
+    "frac13;": "\u2153",
+    "frac14": "\xbc",
+    "frac14;": "\xbc",
+    "frac15;": "\u2155",
+    "frac16;": "\u2159",
+    "frac18;": "\u215b",
+    "frac23;": "\u2154",
+    "frac25;": "\u2156",
+    "frac34": "\xbe",
+    "frac34;": "\xbe",
+    "frac35;": "\u2157",
+    "frac38;": "\u215c",
+    "frac45;": "\u2158",
+    "frac56;": "\u215a",
+    "frac58;": "\u215d",
+    "frac78;": "\u215e",
+    "frasl;": "\u2044",
+    "frown;": "\u2322",
+    "fscr;": "\U0001d4bb",
+    "gE;": "\u2267",
+    "gEl;": "\u2a8c",
+    "gacute;": "\u01f5",
+    "gamma;": "\u03b3",
+    "gammad;": "\u03dd",
+    "gap;": "\u2a86",
+    "gbreve;": "\u011f",
+    "gcirc;": "\u011d",
+    "gcy;": "\u0433",
+    "gdot;": "\u0121",
+    "ge;": "\u2265",
+    "gel;": "\u22db",
+    "geq;": "\u2265",
+    "geqq;": "\u2267",
+    "geqslant;": "\u2a7e",
+    "ges;": "\u2a7e",
+    "gescc;": "\u2aa9",
+    "gesdot;": "\u2a80",
+    "gesdoto;": "\u2a82",
+    "gesdotol;": "\u2a84",
+    "gesl;": "\u22db\ufe00",
+    "gesles;": "\u2a94",
+    "gfr;": "\U0001d524",
+    "gg;": "\u226b",
+    "ggg;": "\u22d9",
+    "gimel;": "\u2137",
+    "gjcy;": "\u0453",
+    "gl;": "\u2277",
+    "glE;": "\u2a92",
+    "gla;": "\u2aa5",
+    "glj;": "\u2aa4",
+    "gnE;": "\u2269",
+    "gnap;": "\u2a8a",
+    "gnapprox;": "\u2a8a",
+    "gne;": "\u2a88",
+    "gneq;": "\u2a88",
+    "gneqq;": "\u2269",
+    "gnsim;": "\u22e7",
+    "gopf;": "\U0001d558",
+    "grave;": "`",
+    "gscr;": "\u210a",
+    "gsim;": "\u2273",
+    "gsime;": "\u2a8e",
+    "gsiml;": "\u2a90",
+    "gt": ">",
+    "gt;": ">",
+    "gtcc;": "\u2aa7",
+    "gtcir;": "\u2a7a",
+    "gtdot;": "\u22d7",
+    "gtlPar;": "\u2995",
+    "gtquest;": "\u2a7c",
+    "gtrapprox;": "\u2a86",
+    "gtrarr;": "\u2978",
+    "gtrdot;": "\u22d7",
+    "gtreqless;": "\u22db",
+    "gtreqqless;": "\u2a8c",
+    "gtrless;": "\u2277",
+    "gtrsim;": "\u2273",
+    "gvertneqq;": "\u2269\ufe00",
+    "gvnE;": "\u2269\ufe00",
+    "hArr;": "\u21d4",
+    "hairsp;": "\u200a",
+    "half;": "\xbd",
+    "hamilt;": "\u210b",
+    "hardcy;": "\u044a",
+    "harr;": "\u2194",
+    "harrcir;": "\u2948",
+    "harrw;": "\u21ad",
+    "hbar;": "\u210f",
+    "hcirc;": "\u0125",
+    "hearts;": "\u2665",
+    "heartsuit;": "\u2665",
+    "hellip;": "\u2026",
+    "hercon;": "\u22b9",
+    "hfr;": "\U0001d525",
+    "hksearow;": "\u2925",
+    "hkswarow;": "\u2926",
+    "hoarr;": "\u21ff",
+    "homtht;": "\u223b",
+    "hookleftarrow;": "\u21a9",
+    "hookrightarrow;": "\u21aa",
+    "hopf;": "\U0001d559",
+    "horbar;": "\u2015",
+    "hscr;": "\U0001d4bd",
+    "hslash;": "\u210f",
+    "hstrok;": "\u0127",
+    "hybull;": "\u2043",
+    "hyphen;": "\u2010",
+    "iacute": "\xed",
+    "iacute;": "\xed",
+    "ic;": "\u2063",
+    "icirc": "\xee",
+    "icirc;": "\xee",
+    "icy;": "\u0438",
+    "iecy;": "\u0435",
+    "iexcl": "\xa1",
+    "iexcl;": "\xa1",
+    "iff;": "\u21d4",
+    "ifr;": "\U0001d526",
+    "igrave": "\xec",
+    "igrave;": "\xec",
+    "ii;": "\u2148",
+    "iiiint;": "\u2a0c",
+    "iiint;": "\u222d",
+    "iinfin;": "\u29dc",
+    "iiota;": "\u2129",
+    "ijlig;": "\u0133",
+    "imacr;": "\u012b",
+    "image;": "\u2111",
+    "imagline;": "\u2110",
+    "imagpart;": "\u2111",
+    "imath;": "\u0131",
+    "imof;": "\u22b7",
+    "imped;": "\u01b5",
+    "in;": "\u2208",
+    "incare;": "\u2105",
+    "infin;": "\u221e",
+    "infintie;": "\u29dd",
+    "inodot;": "\u0131",
+    "int;": "\u222b",
+    "intcal;": "\u22ba",
+    "integers;": "\u2124",
+    "intercal;": "\u22ba",
+    "intlarhk;": "\u2a17",
+    "intprod;": "\u2a3c",
+    "iocy;": "\u0451",
+    "iogon;": "\u012f",
+    "iopf;": "\U0001d55a",
+    "iota;": "\u03b9",
+    "iprod;": "\u2a3c",
+    "iquest": "\xbf",
+    "iquest;": "\xbf",
+    "iscr;": "\U0001d4be",
+    "isin;": "\u2208",
+    "isinE;": "\u22f9",
+    "isindot;": "\u22f5",
+    "isins;": "\u22f4",
+    "isinsv;": "\u22f3",
+    "isinv;": "\u2208",
+    "it;": "\u2062",
+    "itilde;": "\u0129",
+    "iukcy;": "\u0456",
+    "iuml": "\xef",
+    "iuml;": "\xef",
+    "jcirc;": "\u0135",
+    "jcy;": "\u0439",
+    "jfr;": "\U0001d527",
+    "jmath;": "\u0237",
+    "jopf;": "\U0001d55b",
+    "jscr;": "\U0001d4bf",
+    "jsercy;": "\u0458",
+    "jukcy;": "\u0454",
+    "kappa;": "\u03ba",
+    "kappav;": "\u03f0",
+    "kcedil;": "\u0137",
+    "kcy;": "\u043a",
+    "kfr;": "\U0001d528",
+    "kgreen;": "\u0138",
+    "khcy;": "\u0445",
+    "kjcy;": "\u045c",
+    "kopf;": "\U0001d55c",
+    "kscr;": "\U0001d4c0",
+    "lAarr;": "\u21da",
+    "lArr;": "\u21d0",
+    "lAtail;": "\u291b",
+    "lBarr;": "\u290e",
+    "lE;": "\u2266",
+    "lEg;": "\u2a8b",
+    "lHar;": "\u2962",
+    "lacute;": "\u013a",
+    "laemptyv;": "\u29b4",
+    "lagran;": "\u2112",
+    "lambda;": "\u03bb",
+    "lang;": "\u27e8",
+    "langd;": "\u2991",
+    "langle;": "\u27e8",
+    "lap;": "\u2a85",
+    "laquo": "\xab",
+    "laquo;": "\xab",
+    "larr;": "\u2190",
+    "larrb;": "\u21e4",
+    "larrbfs;": "\u291f",
+    "larrfs;": "\u291d",
+    "larrhk;": "\u21a9",
+    "larrlp;": "\u21ab",
+    "larrpl;": "\u2939",
+    "larrsim;": "\u2973",
+    "larrtl;": "\u21a2",
+    "lat;": "\u2aab",
+    "latail;": "\u2919",
+    "late;": "\u2aad",
+    "lates;": "\u2aad\ufe00",
+    "lbarr;": "\u290c",
+    "lbbrk;": "\u2772",
+    "lbrace;": "{",
+    "lbrack;": "[",
+    "lbrke;": "\u298b",
+    "lbrksld;": "\u298f",
+    "lbrkslu;": "\u298d",
+    "lcaron;": "\u013e",
+    "lcedil;": "\u013c",
+    "lceil;": "\u2308",
+    "lcub;": "{",
+    "lcy;": "\u043b",
+    "ldca;": "\u2936",
+    "ldquo;": "\u201c",
+    "ldquor;": "\u201e",
+    "ldrdhar;": "\u2967",
+    "ldrushar;": "\u294b",
+    "ldsh;": "\u21b2",
+    "le;": "\u2264",
+    "leftarrow;": "\u2190",
+    "leftarrowtail;": "\u21a2",
+    "leftharpoondown;": "\u21bd",
+    "leftharpoonup;": "\u21bc",
+    "leftleftarrows;": "\u21c7",
+    "leftrightarrow;": "\u2194",
+    "leftrightarrows;": "\u21c6",
+    "leftrightharpoons;": "\u21cb",
+    "leftrightsquigarrow;": "\u21ad",
+    "leftthreetimes;": "\u22cb",
+    "leg;": "\u22da",
+    "leq;": "\u2264",
+    "leqq;": "\u2266",
+    "leqslant;": "\u2a7d",
+    "les;": "\u2a7d",
+    "lescc;": "\u2aa8",
+    "lesdot;": "\u2a7f",
+    "lesdoto;": "\u2a81",
+    "lesdotor;": "\u2a83",
+    "lesg;": "\u22da\ufe00",
+    "lesges;": "\u2a93",
+    "lessapprox;": "\u2a85",
+    "lessdot;": "\u22d6",
+    "lesseqgtr;": "\u22da",
+    "lesseqqgtr;": "\u2a8b",
+    "lessgtr;": "\u2276",
+    "lesssim;": "\u2272",
+    "lfisht;": "\u297c",
+    "lfloor;": "\u230a",
+    "lfr;": "\U0001d529",
+    "lg;": "\u2276",
+    "lgE;": "\u2a91",
+    "lhard;": "\u21bd",
+    "lharu;": "\u21bc",
+    "lharul;": "\u296a",
+    "lhblk;": "\u2584",
+    "ljcy;": "\u0459",
+    "ll;": "\u226a",
+    "llarr;": "\u21c7",
+    "llcorner;": "\u231e",
+    "llhard;": "\u296b",
+    "lltri;": "\u25fa",
+    "lmidot;": "\u0140",
+    "lmoust;": "\u23b0",
+    "lmoustache;": "\u23b0",
+    "lnE;": "\u2268",
+    "lnap;": "\u2a89",
+    "lnapprox;": "\u2a89",
+    "lne;": "\u2a87",
+    "lneq;": "\u2a87",
+    "lneqq;": "\u2268",
+    "lnsim;": "\u22e6",
+    "loang;": "\u27ec",
+    "loarr;": "\u21fd",
+    "lobrk;": "\u27e6",
+    "longleftarrow;": "\u27f5",
+    "longleftrightarrow;": "\u27f7",
+    "longmapsto;": "\u27fc",
+    "longrightarrow;": "\u27f6",
+    "looparrowleft;": "\u21ab",
+    "looparrowright;": "\u21ac",
+    "lopar;": "\u2985",
+    "lopf;": "\U0001d55d",
+    "loplus;": "\u2a2d",
+    "lotimes;": "\u2a34",
+    "lowast;": "\u2217",
+    "lowbar;": "_",
+    "loz;": "\u25ca",
+    "lozenge;": "\u25ca",
+    "lozf;": "\u29eb",
+    "lpar;": "(",
+    "lparlt;": "\u2993",
+    "lrarr;": "\u21c6",
+    "lrcorner;": "\u231f",
+    "lrhar;": "\u21cb",
+    "lrhard;": "\u296d",
+    "lrm;": "\u200e",
+    "lrtri;": "\u22bf",
+    "lsaquo;": "\u2039",
+    "lscr;": "\U0001d4c1",
+    "lsh;": "\u21b0",
+    "lsim;": "\u2272",
+    "lsime;": "\u2a8d",
+    "lsimg;": "\u2a8f",
+    "lsqb;": "[",
+    "lsquo;": "\u2018",
+    "lsquor;": "\u201a",
+    "lstrok;": "\u0142",
+    "lt": "<",
+    "lt;": "<",
+    "ltcc;": "\u2aa6",
+    "ltcir;": "\u2a79",
+    "ltdot;": "\u22d6",
+    "lthree;": "\u22cb",
+    "ltimes;": "\u22c9",
+    "ltlarr;": "\u2976",
+    "ltquest;": "\u2a7b",
+    "ltrPar;": "\u2996",
+    "ltri;": "\u25c3",
+    "ltrie;": "\u22b4",
+    "ltrif;": "\u25c2",
+    "lurdshar;": "\u294a",
+    "luruhar;": "\u2966",
+    "lvertneqq;": "\u2268\ufe00",
+    "lvnE;": "\u2268\ufe00",
+    "mDDot;": "\u223a",
+    "macr": "\xaf",
+    "macr;": "\xaf",
+    "male;": "\u2642",
+    "malt;": "\u2720",
+    "maltese;": "\u2720",
+    "map;": "\u21a6",
+    "mapsto;": "\u21a6",
+    "mapstodown;": "\u21a7",
+    "mapstoleft;": "\u21a4",
+    "mapstoup;": "\u21a5",
+    "marker;": "\u25ae",
+    "mcomma;": "\u2a29",
+    "mcy;": "\u043c",
+    "mdash;": "\u2014",
+    "measuredangle;": "\u2221",
+    "mfr;": "\U0001d52a",
+    "mho;": "\u2127",
+    "micro": "\xb5",
+    "micro;": "\xb5",
+    "mid;": "\u2223",
+    "midast;": "*",
+    "midcir;": "\u2af0",
+    "middot": "\xb7",
+    "middot;": "\xb7",
+    "minus;": "\u2212",
+    "minusb;": "\u229f",
+    "minusd;": "\u2238",
+    "minusdu;": "\u2a2a",
+    "mlcp;": "\u2adb",
+    "mldr;": "\u2026",
+    "mnplus;": "\u2213",
+    "models;": "\u22a7",
+    "mopf;": "\U0001d55e",
+    "mp;": "\u2213",
+    "mscr;": "\U0001d4c2",
+    "mstpos;": "\u223e",
+    "mu;": "\u03bc",
+    "multimap;": "\u22b8",
+    "mumap;": "\u22b8",
+    "nGg;": "\u22d9\u0338",
+    "nGt;": "\u226b\u20d2",
+    "nGtv;": "\u226b\u0338",
+    "nLeftarrow;": "\u21cd",
+    "nLeftrightarrow;": "\u21ce",
+    "nLl;": "\u22d8\u0338",
+    "nLt;": "\u226a\u20d2",
+    "nLtv;": "\u226a\u0338",
+    "nRightarrow;": "\u21cf",
+    "nVDash;": "\u22af",
+    "nVdash;": "\u22ae",
+    "nabla;": "\u2207",
+    "nacute;": "\u0144",
+    "nang;": "\u2220\u20d2",
+    "nap;": "\u2249",
+    "napE;": "\u2a70\u0338",
+    "napid;": "\u224b\u0338",
+    "napos;": "\u0149",
+    "napprox;": "\u2249",
+    "natur;": "\u266e",
+    "natural;": "\u266e",
+    "naturals;": "\u2115",
+    "nbsp": "\xa0",
+    "nbsp;": "\xa0",
+    "nbump;": "\u224e\u0338",
+    "nbumpe;": "\u224f\u0338",
+    "ncap;": "\u2a43",
+    "ncaron;": "\u0148",
+    "ncedil;": "\u0146",
+    "ncong;": "\u2247",
+    "ncongdot;": "\u2a6d\u0338",
+    "ncup;": "\u2a42",
+    "ncy;": "\u043d",
+    "ndash;": "\u2013",
+    "ne;": "\u2260",
+    "neArr;": "\u21d7",
+    "nearhk;": "\u2924",
+    "nearr;": "\u2197",
+    "nearrow;": "\u2197",
+    "nedot;": "\u2250\u0338",
+    "nequiv;": "\u2262",
+    "nesear;": "\u2928",
+    "nesim;": "\u2242\u0338",
+    "nexist;": "\u2204",
+    "nexists;": "\u2204",
+    "nfr;": "\U0001d52b",
+    "ngE;": "\u2267\u0338",
+    "nge;": "\u2271",
+    "ngeq;": "\u2271",
+    "ngeqq;": "\u2267\u0338",
+    "ngeqslant;": "\u2a7e\u0338",
+    "nges;": "\u2a7e\u0338",
+    "ngsim;": "\u2275",
+    "ngt;": "\u226f",
+    "ngtr;": "\u226f",
+    "nhArr;": "\u21ce",
+    "nharr;": "\u21ae",
+    "nhpar;": "\u2af2",
+    "ni;": "\u220b",
+    "nis;": "\u22fc",
+    "nisd;": "\u22fa",
+    "niv;": "\u220b",
+    "njcy;": "\u045a",
+    "nlArr;": "\u21cd",
+    "nlE;": "\u2266\u0338",
+    "nlarr;": "\u219a",
+    "nldr;": "\u2025",
+    "nle;": "\u2270",
+    "nleftarrow;": "\u219a",
+    "nleftrightarrow;": "\u21ae",
+    "nleq;": "\u2270",
+    "nleqq;": "\u2266\u0338",
+    "nleqslant;": "\u2a7d\u0338",
+    "nles;": "\u2a7d\u0338",
+    "nless;": "\u226e",
+    "nlsim;": "\u2274",
+    "nlt;": "\u226e",
+    "nltri;": "\u22ea",
+    "nltrie;": "\u22ec",
+    "nmid;": "\u2224",
+    "nopf;": "\U0001d55f",
+    "not": "\xac",
+    "not;": "\xac",
+    "notin;": "\u2209",
+    "notinE;": "\u22f9\u0338",
+    "notindot;": "\u22f5\u0338",
+    "notinva;": "\u2209",
+    "notinvb;": "\u22f7",
+    "notinvc;": "\u22f6",
+    "notni;": "\u220c",
+    "notniva;": "\u220c",
+    "notnivb;": "\u22fe",
+    "notnivc;": "\u22fd",
+    "npar;": "\u2226",
+    "nparallel;": "\u2226",
+    "nparsl;": "\u2afd\u20e5",
+    "npart;": "\u2202\u0338",
+    "npolint;": "\u2a14",
+    "npr;": "\u2280",
+    "nprcue;": "\u22e0",
+    "npre;": "\u2aaf\u0338",
+    "nprec;": "\u2280",
+    "npreceq;": "\u2aaf\u0338",
+    "nrArr;": "\u21cf",
+    "nrarr;": "\u219b",
+    "nrarrc;": "\u2933\u0338",
+    "nrarrw;": "\u219d\u0338",
+    "nrightarrow;": "\u219b",
+    "nrtri;": "\u22eb",
+    "nrtrie;": "\u22ed",
+    "nsc;": "\u2281",
+    "nsccue;": "\u22e1",
+    "nsce;": "\u2ab0\u0338",
+    "nscr;": "\U0001d4c3",
+    "nshortmid;": "\u2224",
+    "nshortparallel;": "\u2226",
+    "nsim;": "\u2241",
+    "nsime;": "\u2244",
+    "nsimeq;": "\u2244",
+    "nsmid;": "\u2224",
+    "nspar;": "\u2226",
+    "nsqsube;": "\u22e2",
+    "nsqsupe;": "\u22e3",
+    "nsub;": "\u2284",
+    "nsubE;": "\u2ac5\u0338",
+    "nsube;": "\u2288",
+    "nsubset;": "\u2282\u20d2",
+    "nsubseteq;": "\u2288",
+    "nsubseteqq;": "\u2ac5\u0338",
+    "nsucc;": "\u2281",
+    "nsucceq;": "\u2ab0\u0338",
+    "nsup;": "\u2285",
+    "nsupE;": "\u2ac6\u0338",
+    "nsupe;": "\u2289",
+    "nsupset;": "\u2283\u20d2",
+    "nsupseteq;": "\u2289",
+    "nsupseteqq;": "\u2ac6\u0338",
+    "ntgl;": "\u2279",
+    "ntilde": "\xf1",
+    "ntilde;": "\xf1",
+    "ntlg;": "\u2278",
+    "ntriangleleft;": "\u22ea",
+    "ntrianglelefteq;": "\u22ec",
+    "ntriangleright;": "\u22eb",
+    "ntrianglerighteq;": "\u22ed",
+    "nu;": "\u03bd",
+    "num;": "#",
+    "numero;": "\u2116",
+    "numsp;": "\u2007",
+    "nvDash;": "\u22ad",
+    "nvHarr;": "\u2904",
+    "nvap;": "\u224d\u20d2",
+    "nvdash;": "\u22ac",
+    "nvge;": "\u2265\u20d2",
+    "nvgt;": ">\u20d2",
+    "nvinfin;": "\u29de",
+    "nvlArr;": "\u2902",
+    "nvle;": "\u2264\u20d2",
+    "nvlt;": "<\u20d2",
+    "nvltrie;": "\u22b4\u20d2",
+    "nvrArr;": "\u2903",
+    "nvrtrie;": "\u22b5\u20d2",
+    "nvsim;": "\u223c\u20d2",
+    "nwArr;": "\u21d6",
+    "nwarhk;": "\u2923",
+    "nwarr;": "\u2196",
+    "nwarrow;": "\u2196",
+    "nwnear;": "\u2927",
+    "oS;": "\u24c8",
+    "oacute": "\xf3",
+    "oacute;": "\xf3",
+    "oast;": "\u229b",
+    "ocir;": "\u229a",
+    "ocirc": "\xf4",
+    "ocirc;": "\xf4",
+    "ocy;": "\u043e",
+    "odash;": "\u229d",
+    "odblac;": "\u0151",
+    "odiv;": "\u2a38",
+    "odot;": "\u2299",
+    "odsold;": "\u29bc",
+    "oelig;": "\u0153",
+    "ofcir;": "\u29bf",
+    "ofr;": "\U0001d52c",
+    "ogon;": "\u02db",
+    "ograve": "\xf2",
+    "ograve;": "\xf2",
+    "ogt;": "\u29c1",
+    "ohbar;": "\u29b5",
+    "ohm;": "\u03a9",
+    "oint;": "\u222e",
+    "olarr;": "\u21ba",
+    "olcir;": "\u29be",
+    "olcross;": "\u29bb",
+    "oline;": "\u203e",
+    "olt;": "\u29c0",
+    "omacr;": "\u014d",
+    "omega;": "\u03c9",
+    "omicron;": "\u03bf",
+    "omid;": "\u29b6",
+    "ominus;": "\u2296",
+    "oopf;": "\U0001d560",
+    "opar;": "\u29b7",
+    "operp;": "\u29b9",
+    "oplus;": "\u2295",
+    "or;": "\u2228",
+    "orarr;": "\u21bb",
+    "ord;": "\u2a5d",
+    "order;": "\u2134",
+    "orderof;": "\u2134",
+    "ordf": "\xaa",
+    "ordf;": "\xaa",
+    "ordm": "\xba",
+    "ordm;": "\xba",
+    "origof;": "\u22b6",
+    "oror;": "\u2a56",
+    "orslope;": "\u2a57",
+    "orv;": "\u2a5b",
+    "oscr;": "\u2134",
+    "oslash": "\xf8",
+    "oslash;": "\xf8",
+    "osol;": "\u2298",
+    "otilde": "\xf5",
+    "otilde;": "\xf5",
+    "otimes;": "\u2297",
+    "otimesas;": "\u2a36",
+    "ouml": "\xf6",
+    "ouml;": "\xf6",
+    "ovbar;": "\u233d",
+    "par;": "\u2225",
+    "para": "\xb6",
+    "para;": "\xb6",
+    "parallel;": "\u2225",
+    "parsim;": "\u2af3",
+    "parsl;": "\u2afd",
+    "part;": "\u2202",
+    "pcy;": "\u043f",
+    "percnt;": "%",
+    "period;": ".",
+    "permil;": "\u2030",
+    "perp;": "\u22a5",
+    "pertenk;": "\u2031",
+    "pfr;": "\U0001d52d",
+    "phi;": "\u03c6",
+    "phiv;": "\u03d5",
+    "phmmat;": "\u2133",
+    "phone;": "\u260e",
+    "pi;": "\u03c0",
+    "pitchfork;": "\u22d4",
+    "piv;": "\u03d6",
+    "planck;": "\u210f",
+    "planckh;": "\u210e",
+    "plankv;": "\u210f",
+    "plus;": "+",
+    "plusacir;": "\u2a23",
+    "plusb;": "\u229e",
+    "pluscir;": "\u2a22",
+    "plusdo;": "\u2214",
+    "plusdu;": "\u2a25",
+    "pluse;": "\u2a72",
+    "plusmn": "\xb1",
+    "plusmn;": "\xb1",
+    "plussim;": "\u2a26",
+    "plustwo;": "\u2a27",
+    "pm;": "\xb1",
+    "pointint;": "\u2a15",
+    "popf;": "\U0001d561",
+    "pound": "\xa3",
+    "pound;": "\xa3",
+    "pr;": "\u227a",
+    "prE;": "\u2ab3",
+    "prap;": "\u2ab7",
+    "prcue;": "\u227c",
+    "pre;": "\u2aaf",
+    "prec;": "\u227a",
+    "precapprox;": "\u2ab7",
+    "preccurlyeq;": "\u227c",
+    "preceq;": "\u2aaf",
+    "precnapprox;": "\u2ab9",
+    "precneqq;": "\u2ab5",
+    "precnsim;": "\u22e8",
+    "precsim;": "\u227e",
+    "prime;": "\u2032",
+    "primes;": "\u2119",
+    "prnE;": "\u2ab5",
+    "prnap;": "\u2ab9",
+    "prnsim;": "\u22e8",
+    "prod;": "\u220f",
+    "profalar;": "\u232e",
+    "profline;": "\u2312",
+    "profsurf;": "\u2313",
+    "prop;": "\u221d",
+    "propto;": "\u221d",
+    "prsim;": "\u227e",
+    "prurel;": "\u22b0",
+    "pscr;": "\U0001d4c5",
+    "psi;": "\u03c8",
+    "puncsp;": "\u2008",
+    "qfr;": "\U0001d52e",
+    "qint;": "\u2a0c",
+    "qopf;": "\U0001d562",
+    "qprime;": "\u2057",
+    "qscr;": "\U0001d4c6",
+    "quaternions;": "\u210d",
+    "quatint;": "\u2a16",
+    "quest;": "?",
+    "questeq;": "\u225f",
+    "quot": "\"",
+    "quot;": "\"",
+    "rAarr;": "\u21db",
+    "rArr;": "\u21d2",
+    "rAtail;": "\u291c",
+    "rBarr;": "\u290f",
+    "rHar;": "\u2964",
+    "race;": "\u223d\u0331",
+    "racute;": "\u0155",
+    "radic;": "\u221a",
+    "raemptyv;": "\u29b3",
+    "rang;": "\u27e9",
+    "rangd;": "\u2992",
+    "range;": "\u29a5",
+    "rangle;": "\u27e9",
+    "raquo": "\xbb",
+    "raquo;": "\xbb",
+    "rarr;": "\u2192",
+    "rarrap;": "\u2975",
+    "rarrb;": "\u21e5",
+    "rarrbfs;": "\u2920",
+    "rarrc;": "\u2933",
+    "rarrfs;": "\u291e",
+    "rarrhk;": "\u21aa",
+    "rarrlp;": "\u21ac",
+    "rarrpl;": "\u2945",
+    "rarrsim;": "\u2974",
+    "rarrtl;": "\u21a3",
+    "rarrw;": "\u219d",
+    "ratail;": "\u291a",
+    "ratio;": "\u2236",
+    "rationals;": "\u211a",
+    "rbarr;": "\u290d",
+    "rbbrk;": "\u2773",
+    "rbrace;": "}",
+    "rbrack;": "]",
+    "rbrke;": "\u298c",
+    "rbrksld;": "\u298e",
+    "rbrkslu;": "\u2990",
+    "rcaron;": "\u0159",
+    "rcedil;": "\u0157",
+    "rceil;": "\u2309",
+    "rcub;": "}",
+    "rcy;": "\u0440",
+    "rdca;": "\u2937",
+    "rdldhar;": "\u2969",
+    "rdquo;": "\u201d",
+    "rdquor;": "\u201d",
+    "rdsh;": "\u21b3",
+    "real;": "\u211c",
+    "realine;": "\u211b",
+    "realpart;": "\u211c",
+    "reals;": "\u211d",
+    "rect;": "\u25ad",
+    "reg": "\xae",
+    "reg;": "\xae",
+    "rfisht;": "\u297d",
+    "rfloor;": "\u230b",
+    "rfr;": "\U0001d52f",
+    "rhard;": "\u21c1",
+    "rharu;": "\u21c0",
+    "rharul;": "\u296c",
+    "rho;": "\u03c1",
+    "rhov;": "\u03f1",
+    "rightarrow;": "\u2192",
+    "rightarrowtail;": "\u21a3",
+    "rightharpoondown;": "\u21c1",
+    "rightharpoonup;": "\u21c0",
+    "rightleftarrows;": "\u21c4",
+    "rightleftharpoons;": "\u21cc",
+    "rightrightarrows;": "\u21c9",
+    "rightsquigarrow;": "\u219d",
+    "rightthreetimes;": "\u22cc",
+    "ring;": "\u02da",
+    "risingdotseq;": "\u2253",
+    "rlarr;": "\u21c4",
+    "rlhar;": "\u21cc",
+    "rlm;": "\u200f",
+    "rmoust;": "\u23b1",
+    "rmoustache;": "\u23b1",
+    "rnmid;": "\u2aee",
+    "roang;": "\u27ed",
+    "roarr;": "\u21fe",
+    "robrk;": "\u27e7",
+    "ropar;": "\u2986",
+    "ropf;": "\U0001d563",
+    "roplus;": "\u2a2e",
+    "rotimes;": "\u2a35",
+    "rpar;": ")",
+    "rpargt;": "\u2994",
+    "rppolint;": "\u2a12",
+    "rrarr;": "\u21c9",
+    "rsaquo;": "\u203a",
+    "rscr;": "\U0001d4c7",
+    "rsh;": "\u21b1",
+    "rsqb;": "]",
+    "rsquo;": "\u2019",
+    "rsquor;": "\u2019",
+    "rthree;": "\u22cc",
+    "rtimes;": "\u22ca",
+    "rtri;": "\u25b9",
+    "rtrie;": "\u22b5",
+    "rtrif;": "\u25b8",
+    "rtriltri;": "\u29ce",
+    "ruluhar;": "\u2968",
+    "rx;": "\u211e",
+    "sacute;": "\u015b",
+    "sbquo;": "\u201a",
+    "sc;": "\u227b",
+    "scE;": "\u2ab4",
+    "scap;": "\u2ab8",
+    "scaron;": "\u0161",
+    "sccue;": "\u227d",
+    "sce;": "\u2ab0",
+    "scedil;": "\u015f",
+    "scirc;": "\u015d",
+    "scnE;": "\u2ab6",
+    "scnap;": "\u2aba",
+    "scnsim;": "\u22e9",
+    "scpolint;": "\u2a13",
+    "scsim;": "\u227f",
+    "scy;": "\u0441",
+    "sdot;": "\u22c5",
+    "sdotb;": "\u22a1",
+    "sdote;": "\u2a66",
+    "seArr;": "\u21d8",
+    "searhk;": "\u2925",
+    "searr;": "\u2198",
+    "searrow;": "\u2198",
+    "sect": "\xa7",
+    "sect;": "\xa7",
+    "semi;": ";",
+    "seswar;": "\u2929",
+    "setminus;": "\u2216",
+    "setmn;": "\u2216",
+    "sext;": "\u2736",
+    "sfr;": "\U0001d530",
+    "sfrown;": "\u2322",
+    "sharp;": "\u266f",
+    "shchcy;": "\u0449",
+    "shcy;": "\u0448",
+    "shortmid;": "\u2223",
+    "shortparallel;": "\u2225",
+    "shy": "\xad",
+    "shy;": "\xad",
+    "sigma;": "\u03c3",
+    "sigmaf;": "\u03c2",
+    "sigmav;": "\u03c2",
+    "sim;": "\u223c",
+    "simdot;": "\u2a6a",
+    "sime;": "\u2243",
+    "simeq;": "\u2243",
+    "simg;": "\u2a9e",
+    "simgE;": "\u2aa0",
+    "siml;": "\u2a9d",
+    "simlE;": "\u2a9f",
+    "simne;": "\u2246",
+    "simplus;": "\u2a24",
+    "simrarr;": "\u2972",
+    "slarr;": "\u2190",
+    "smallsetminus;": "\u2216",
+    "smashp;": "\u2a33",
+    "smeparsl;": "\u29e4",
+    "smid;": "\u2223",
+    "smile;": "\u2323",
+    "smt;": "\u2aaa",
+    "smte;": "\u2aac",
+    "smtes;": "\u2aac\ufe00",
+    "softcy;": "\u044c",
+    "sol;": "/",
+    "solb;": "\u29c4",
+    "solbar;": "\u233f",
+    "sopf;": "\U0001d564",
+    "spades;": "\u2660",
+    "spadesuit;": "\u2660",
+    "spar;": "\u2225",
+    "sqcap;": "\u2293",
+    "sqcaps;": "\u2293\ufe00",
+    "sqcup;": "\u2294",
+    "sqcups;": "\u2294\ufe00",
+    "sqsub;": "\u228f",
+    "sqsube;": "\u2291",
+    "sqsubset;": "\u228f",
+    "sqsubseteq;": "\u2291",
+    "sqsup;": "\u2290",
+    "sqsupe;": "\u2292",
+    "sqsupset;": "\u2290",
+    "sqsupseteq;": "\u2292",
+    "squ;": "\u25a1",
+    "square;": "\u25a1",
+    "squarf;": "\u25aa",
+    "squf;": "\u25aa",
+    "srarr;": "\u2192",
+    "sscr;": "\U0001d4c8",
+    "ssetmn;": "\u2216",
+    "ssmile;": "\u2323",
+    "sstarf;": "\u22c6",
+    "star;": "\u2606",
+    "starf;": "\u2605",
+    "straightepsilon;": "\u03f5",
+    "straightphi;": "\u03d5",
+    "strns;": "\xaf",
+    "sub;": "\u2282",
+    "subE;": "\u2ac5",
+    "subdot;": "\u2abd",
+    "sube;": "\u2286",
+    "subedot;": "\u2ac3",
+    "submult;": "\u2ac1",
+    "subnE;": "\u2acb",
+    "subne;": "\u228a",
+    "subplus;": "\u2abf",
+    "subrarr;": "\u2979",
+    "subset;": "\u2282",
+    "subseteq;": "\u2286",
+    "subseteqq;": "\u2ac5",
+    "subsetneq;": "\u228a",
+    "subsetneqq;": "\u2acb",
+    "subsim;": "\u2ac7",
+    "subsub;": "\u2ad5",
+    "subsup;": "\u2ad3",
+    "succ;": "\u227b",
+    "succapprox;": "\u2ab8",
+    "succcurlyeq;": "\u227d",
+    "succeq;": "\u2ab0",
+    "succnapprox;": "\u2aba",
+    "succneqq;": "\u2ab6",
+    "succnsim;": "\u22e9",
+    "succsim;": "\u227f",
+    "sum;": "\u2211",
+    "sung;": "\u266a",
+    "sup1": "\xb9",
+    "sup1;": "\xb9",
+    "sup2": "\xb2",
+    "sup2;": "\xb2",
+    "sup3": "\xb3",
+    "sup3;": "\xb3",
+    "sup;": "\u2283",
+    "supE;": "\u2ac6",
+    "supdot;": "\u2abe",
+    "supdsub;": "\u2ad8",
+    "supe;": "\u2287",
+    "supedot;": "\u2ac4",
+    "suphsol;": "\u27c9",
+    "suphsub;": "\u2ad7",
+    "suplarr;": "\u297b",
+    "supmult;": "\u2ac2",
+    "supnE;": "\u2acc",
+    "supne;": "\u228b",
+    "supplus;": "\u2ac0",
+    "supset;": "\u2283",
+    "supseteq;": "\u2287",
+    "supseteqq;": "\u2ac6",
+    "supsetneq;": "\u228b",
+    "supsetneqq;": "\u2acc",
+    "supsim;": "\u2ac8",
+    "supsub;": "\u2ad4",
+    "supsup;": "\u2ad6",
+    "swArr;": "\u21d9",
+    "swarhk;": "\u2926",
+    "swarr;": "\u2199",
+    "swarrow;": "\u2199",
+    "swnwar;": "\u292a",
+    "szlig": "\xdf",
+    "szlig;": "\xdf",
+    "target;": "\u2316",
+    "tau;": "\u03c4",
+    "tbrk;": "\u23b4",
+    "tcaron;": "\u0165",
+    "tcedil;": "\u0163",
+    "tcy;": "\u0442",
+    "tdot;": "\u20db",
+    "telrec;": "\u2315",
+    "tfr;": "\U0001d531",
+    "there4;": "\u2234",
+    "therefore;": "\u2234",
+    "theta;": "\u03b8",
+    "thetasym;": "\u03d1",
+    "thetav;": "\u03d1",
+    "thickapprox;": "\u2248",
+    "thicksim;": "\u223c",
+    "thinsp;": "\u2009",
+    "thkap;": "\u2248",
+    "thksim;": "\u223c",
+    "thorn": "\xfe",
+    "thorn;": "\xfe",
+    "tilde;": "\u02dc",
+    "times": "\xd7",
+    "times;": "\xd7",
+    "timesb;": "\u22a0",
+    "timesbar;": "\u2a31",
+    "timesd;": "\u2a30",
+    "tint;": "\u222d",
+    "toea;": "\u2928",
+    "top;": "\u22a4",
+    "topbot;": "\u2336",
+    "topcir;": "\u2af1",
+    "topf;": "\U0001d565",
+    "topfork;": "\u2ada",
+    "tosa;": "\u2929",
+    "tprime;": "\u2034",
+    "trade;": "\u2122",
+    "triangle;": "\u25b5",
+    "triangledown;": "\u25bf",
+    "triangleleft;": "\u25c3",
+    "trianglelefteq;": "\u22b4",
+    "triangleq;": "\u225c",
+    "triangleright;": "\u25b9",
+    "trianglerighteq;": "\u22b5",
+    "tridot;": "\u25ec",
+    "trie;": "\u225c",
+    "triminus;": "\u2a3a",
+    "triplus;": "\u2a39",
+    "trisb;": "\u29cd",
+    "tritime;": "\u2a3b",
+    "trpezium;": "\u23e2",
+    "tscr;": "\U0001d4c9",
+    "tscy;": "\u0446",
+    "tshcy;": "\u045b",
+    "tstrok;": "\u0167",
+    "twixt;": "\u226c",
+    "twoheadleftarrow;": "\u219e",
+    "twoheadrightarrow;": "\u21a0",
+    "uArr;": "\u21d1",
+    "uHar;": "\u2963",
+    "uacute": "\xfa",
+    "uacute;": "\xfa",
+    "uarr;": "\u2191",
+    "ubrcy;": "\u045e",
+    "ubreve;": "\u016d",
+    "ucirc": "\xfb",
+    "ucirc;": "\xfb",
+    "ucy;": "\u0443",
+    "udarr;": "\u21c5",
+    "udblac;": "\u0171",
+    "udhar;": "\u296e",
+    "ufisht;": "\u297e",
+    "ufr;": "\U0001d532",
+    "ugrave": "\xf9",
+    "ugrave;": "\xf9",
+    "uharl;": "\u21bf",
+    "uharr;": "\u21be",
+    "uhblk;": "\u2580",
+    "ulcorn;": "\u231c",
+    "ulcorner;": "\u231c",
+    "ulcrop;": "\u230f",
+    "ultri;": "\u25f8",
+    "umacr;": "\u016b",
+    "uml": "\xa8",
+    "uml;": "\xa8",
+    "uogon;": "\u0173",
+    "uopf;": "\U0001d566",
+    "uparrow;": "\u2191",
+    "updownarrow;": "\u2195",
+    "upharpoonleft;": "\u21bf",
+    "upharpoonright;": "\u21be",
+    "uplus;": "\u228e",
+    "upsi;": "\u03c5",
+    "upsih;": "\u03d2",
+    "upsilon;": "\u03c5",
+    "upuparrows;": "\u21c8",
+    "urcorn;": "\u231d",
+    "urcorner;": "\u231d",
+    "urcrop;": "\u230e",
+    "uring;": "\u016f",
+    "urtri;": "\u25f9",
+    "uscr;": "\U0001d4ca",
+    "utdot;": "\u22f0",
+    "utilde;": "\u0169",
+    "utri;": "\u25b5",
+    "utrif;": "\u25b4",
+    "uuarr;": "\u21c8",
+    "uuml": "\xfc",
+    "uuml;": "\xfc",
+    "uwangle;": "\u29a7",
+    "vArr;": "\u21d5",
+    "vBar;": "\u2ae8",
+    "vBarv;": "\u2ae9",
+    "vDash;": "\u22a8",
+    "vangrt;": "\u299c",
+    "varepsilon;": "\u03f5",
+    "varkappa;": "\u03f0",
+    "varnothing;": "\u2205",
+    "varphi;": "\u03d5",
+    "varpi;": "\u03d6",
+    "varpropto;": "\u221d",
+    "varr;": "\u2195",
+    "varrho;": "\u03f1",
+    "varsigma;": "\u03c2",
+    "varsubsetneq;": "\u228a\ufe00",
+    "varsubsetneqq;": "\u2acb\ufe00",
+    "varsupsetneq;": "\u228b\ufe00",
+    "varsupsetneqq;": "\u2acc\ufe00",
+    "vartheta;": "\u03d1",
+    "vartriangleleft;": "\u22b2",
+    "vartriangleright;": "\u22b3",
+    "vcy;": "\u0432",
+    "vdash;": "\u22a2",
+    "vee;": "\u2228",
+    "veebar;": "\u22bb",
+    "veeeq;": "\u225a",
+    "vellip;": "\u22ee",
+    "verbar;": "|",
+    "vert;": "|",
+    "vfr;": "\U0001d533",
+    "vltri;": "\u22b2",
+    "vnsub;": "\u2282\u20d2",
+    "vnsup;": "\u2283\u20d2",
+    "vopf;": "\U0001d567",
+    "vprop;": "\u221d",
+    "vrtri;": "\u22b3",
+    "vscr;": "\U0001d4cb",
+    "vsubnE;": "\u2acb\ufe00",
+    "vsubne;": "\u228a\ufe00",
+    "vsupnE;": "\u2acc\ufe00",
+    "vsupne;": "\u228b\ufe00",
+    "vzigzag;": "\u299a",
+    "wcirc;": "\u0175",
+    "wedbar;": "\u2a5f",
+    "wedge;": "\u2227",
+    "wedgeq;": "\u2259",
+    "weierp;": "\u2118",
+    "wfr;": "\U0001d534",
+    "wopf;": "\U0001d568",
+    "wp;": "\u2118",
+    "wr;": "\u2240",
+    "wreath;": "\u2240",
+    "wscr;": "\U0001d4cc",
+    "xcap;": "\u22c2",
+    "xcirc;": "\u25ef",
+    "xcup;": "\u22c3",
+    "xdtri;": "\u25bd",
+    "xfr;": "\U0001d535",
+    "xhArr;": "\u27fa",
+    "xharr;": "\u27f7",
+    "xi;": "\u03be",
+    "xlArr;": "\u27f8",
+    "xlarr;": "\u27f5",
+    "xmap;": "\u27fc",
+    "xnis;": "\u22fb",
+    "xodot;": "\u2a00",
+    "xopf;": "\U0001d569",
+    "xoplus;": "\u2a01",
+    "xotime;": "\u2a02",
+    "xrArr;": "\u27f9",
+    "xrarr;": "\u27f6",
+    "xscr;": "\U0001d4cd",
+    "xsqcup;": "\u2a06",
+    "xuplus;": "\u2a04",
+    "xutri;": "\u25b3",
+    "xvee;": "\u22c1",
+    "xwedge;": "\u22c0",
+    "yacute": "\xfd",
+    "yacute;": "\xfd",
+    "yacy;": "\u044f",
+    "ycirc;": "\u0177",
+    "ycy;": "\u044b",
+    "yen": "\xa5",
+    "yen;": "\xa5",
+    "yfr;": "\U0001d536",
+    "yicy;": "\u0457",
+    "yopf;": "\U0001d56a",
+    "yscr;": "\U0001d4ce",
+    "yucy;": "\u044e",
+    "yuml": "\xff",
+    "yuml;": "\xff",
+    "zacute;": "\u017a",
+    "zcaron;": "\u017e",
+    "zcy;": "\u0437",
+    "zdot;": "\u017c",
+    "zeetrf;": "\u2128",
+    "zeta;": "\u03b6",
+    "zfr;": "\U0001d537",
+    "zhcy;": "\u0436",
+    "zigrarr;": "\u21dd",
+    "zopf;": "\U0001d56b",
+    "zscr;": "\U0001d4cf",
+    "zwj;": "\u200d",
+    "zwnj;": "\u200c",
+}
+
+replacementCharacters = {
+    0x0: "\uFFFD",
+    0x0d: "\u000D",
+    0x80: "\u20AC",
+    0x81: "\u0081",
+    0x82: "\u201A",
+    0x83: "\u0192",
+    0x84: "\u201E",
+    0x85: "\u2026",
+    0x86: "\u2020",
+    0x87: "\u2021",
+    0x88: "\u02C6",
+    0x89: "\u2030",
+    0x8A: "\u0160",
+    0x8B: "\u2039",
+    0x8C: "\u0152",
+    0x8D: "\u008D",
+    0x8E: "\u017D",
+    0x8F: "\u008F",
+    0x90: "\u0090",
+    0x91: "\u2018",
+    0x92: "\u2019",
+    0x93: "\u201C",
+    0x94: "\u201D",
+    0x95: "\u2022",
+    0x96: "\u2013",
+    0x97: "\u2014",
+    0x98: "\u02DC",
+    0x99: "\u2122",
+    0x9A: "\u0161",
+    0x9B: "\u203A",
+    0x9C: "\u0153",
+    0x9D: "\u009D",
+    0x9E: "\u017E",
+    0x9F: "\u0178",
+}
+
+tokenTypes = {
+    "Doctype": 0,
+    "Characters": 1,
+    "SpaceCharacters": 2,
+    "StartTag": 3,
+    "EndTag": 4,
+    "EmptyTag": 5,
+    "Comment": 6,
+    "ParseError": 7
+}
+
+tagTokenTypes = frozenset([tokenTypes["StartTag"], tokenTypes["EndTag"],
+                           tokenTypes["EmptyTag"]])
+
+
+prefixes = {v: k for k, v in namespaces.items()}
+prefixes["http://www.w3.org/1998/Math/MathML"] = "math"
+
+
+class DataLossWarning(UserWarning):
+    """Raised when the current tree is unable to represent the input data"""
+    pass
+
+
+class _ReparseException(Exception):
+    pass
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/__init__.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/alphabeticalattributes.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/alphabeticalattributes.py
new file mode 100644
index 0000000..5ba926e
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/alphabeticalattributes.py
@@ -0,0 +1,29 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from . import base
+
+from collections import OrderedDict
+
+
+def _attr_key(attr):
+    """Return an appropriate key for an attribute for sorting
+
+    Attributes have a namespace that can be either ``None`` or a string. We
+    can't compare the two because they're different types, so we convert
+    ``None`` to an empty string first.
+
+    """
+    return (attr[0][0] or ''), attr[0][1]
+
+
+class Filter(base.Filter):
+    """Alphabetizes attributes for elements"""
+    def __iter__(self):
+        for token in base.Filter.__iter__(self):
+            if token["type"] in ("StartTag", "EmptyTag"):
+                attrs = OrderedDict()
+                for name, value in sorted(token["data"].items(),
+                                          key=_attr_key):
+                    attrs[name] = value
+                token["data"] = attrs
+            yield token
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/base.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/base.py
new file mode 100644
index 0000000..c7dbaed
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/base.py
@@ -0,0 +1,12 @@
+from __future__ import absolute_import, division, unicode_literals
+
+
+class Filter(object):
+    def __init__(self, source):
+        self.source = source
+
+    def __iter__(self):
+        return iter(self.source)
+
+    def __getattr__(self, name):
+        return getattr(self.source, name)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/inject_meta_charset.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/inject_meta_charset.py
new file mode 100644
index 0000000..aefb5c8
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/inject_meta_charset.py
@@ -0,0 +1,73 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from . import base
+
+
+class Filter(base.Filter):
+    """Injects ```` tag into head of document"""
+    def __init__(self, source, encoding):
+        """Creates a Filter
+
+        :arg source: the source token stream
+
+        :arg encoding: the encoding to set
+
+        """
+        base.Filter.__init__(self, source)
+        self.encoding = encoding
+
+    def __iter__(self):
+        state = "pre_head"
+        meta_found = (self.encoding is None)
+        pending = []
+
+        for token in base.Filter.__iter__(self):
+            type = token["type"]
+            if type == "StartTag":
+                if token["name"].lower() == "head":
+                    state = "in_head"
+
+            elif type == "EmptyTag":
+                if token["name"].lower() == "meta":
+                    # replace charset with actual encoding
+                    has_http_equiv_content_type = False
+                    for (namespace, name), value in token["data"].items():
+                        if namespace is not None:
+                            continue
+                        elif name.lower() == 'charset':
+                            token["data"][(namespace, name)] = self.encoding
+                            meta_found = True
+                            break
+                        elif name == 'http-equiv' and value.lower() == 'content-type':
+                            has_http_equiv_content_type = True
+                    else:
+                        if has_http_equiv_content_type and (None, "content") in token["data"]:
+                            token["data"][(None, "content")] = 'text/html; charset=%s' % self.encoding
+                            meta_found = True
+
+                elif token["name"].lower() == "head" and not meta_found:
+                    # insert meta into empty head
+                    yield {"type": "StartTag", "name": "head",
+                           "data": token["data"]}
+                    yield {"type": "EmptyTag", "name": "meta",
+                           "data": {(None, "charset"): self.encoding}}
+                    yield {"type": "EndTag", "name": "head"}
+                    meta_found = True
+                    continue
+
+            elif type == "EndTag":
+                if token["name"].lower() == "head" and pending:
+                    # insert meta into head (if necessary) and flush pending queue
+                    yield pending.pop(0)
+                    if not meta_found:
+                        yield {"type": "EmptyTag", "name": "meta",
+                               "data": {(None, "charset"): self.encoding}}
+                    while pending:
+                        yield pending.pop(0)
+                    meta_found = True
+                    state = "post_head"
+
+            if state == "in_head":
+                pending.append(token)
+            else:
+                yield token
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/lint.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/lint.py
new file mode 100644
index 0000000..fcc07ee
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/lint.py
@@ -0,0 +1,93 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from pip._vendor.six import text_type
+
+from . import base
+from ..constants import namespaces, voidElements
+
+from ..constants import spaceCharacters
+spaceCharacters = "".join(spaceCharacters)
+
+
+class Filter(base.Filter):
+    """Lints the token stream for errors
+
+    If it finds any errors, it'll raise an ``AssertionError``.
+
+    """
+    def __init__(self, source, require_matching_tags=True):
+        """Creates a Filter
+
+        :arg source: the source token stream
+
+        :arg require_matching_tags: whether or not to require matching tags
+
+        """
+        super(Filter, self).__init__(source)
+        self.require_matching_tags = require_matching_tags
+
+    def __iter__(self):
+        open_elements = []
+        for token in base.Filter.__iter__(self):
+            type = token["type"]
+            if type in ("StartTag", "EmptyTag"):
+                namespace = token["namespace"]
+                name = token["name"]
+                assert namespace is None or isinstance(namespace, text_type)
+                assert namespace != ""
+                assert isinstance(name, text_type)
+                assert name != ""
+                assert isinstance(token["data"], dict)
+                if (not namespace or namespace == namespaces["html"]) and name in voidElements:
+                    assert type == "EmptyTag"
+                else:
+                    assert type == "StartTag"
+                if type == "StartTag" and self.require_matching_tags:
+                    open_elements.append((namespace, name))
+                for (namespace, name), value in token["data"].items():
+                    assert namespace is None or isinstance(namespace, text_type)
+                    assert namespace != ""
+                    assert isinstance(name, text_type)
+                    assert name != ""
+                    assert isinstance(value, text_type)
+
+            elif type == "EndTag":
+                namespace = token["namespace"]
+                name = token["name"]
+                assert namespace is None or isinstance(namespace, text_type)
+                assert namespace != ""
+                assert isinstance(name, text_type)
+                assert name != ""
+                if (not namespace or namespace == namespaces["html"]) and name in voidElements:
+                    assert False, "Void element reported as EndTag token: %(tag)s" % {"tag": name}
+                elif self.require_matching_tags:
+                    start = open_elements.pop()
+                    assert start == (namespace, name)
+
+            elif type == "Comment":
+                data = token["data"]
+                assert isinstance(data, text_type)
+
+            elif type in ("Characters", "SpaceCharacters"):
+                data = token["data"]
+                assert isinstance(data, text_type)
+                assert data != ""
+                if type == "SpaceCharacters":
+                    assert data.strip(spaceCharacters) == ""
+
+            elif type == "Doctype":
+                name = token["name"]
+                assert name is None or isinstance(name, text_type)
+                assert token["publicId"] is None or isinstance(name, text_type)
+                assert token["systemId"] is None or isinstance(name, text_type)
+
+            elif type == "Entity":
+                assert isinstance(token["name"], text_type)
+
+            elif type == "SerializerError":
+                assert isinstance(token["data"], text_type)
+
+            else:
+                assert False, "Unknown token type: %(type)s" % {"type": type}
+
+            yield token
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/optionaltags.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/optionaltags.py
new file mode 100644
index 0000000..4a86501
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/optionaltags.py
@@ -0,0 +1,207 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from . import base
+
+
+class Filter(base.Filter):
+    """Removes optional tags from the token stream"""
+    def slider(self):
+        previous1 = previous2 = None
+        for token in self.source:
+            if previous1 is not None:
+                yield previous2, previous1, token
+            previous2 = previous1
+            previous1 = token
+        if previous1 is not None:
+            yield previous2, previous1, None
+
+    def __iter__(self):
+        for previous, token, next in self.slider():
+            type = token["type"]
+            if type == "StartTag":
+                if (token["data"] or
+                        not self.is_optional_start(token["name"], previous, next)):
+                    yield token
+            elif type == "EndTag":
+                if not self.is_optional_end(token["name"], next):
+                    yield token
+            else:
+                yield token
+
+    def is_optional_start(self, tagname, previous, next):
+        type = next and next["type"] or None
+        if tagname in 'html':
+            # An html element's start tag may be omitted if the first thing
+            # inside the html element is not a space character or a comment.
+            return type not in ("Comment", "SpaceCharacters")
+        elif tagname == 'head':
+            # A head element's start tag may be omitted if the first thing
+            # inside the head element is an element.
+            # XXX: we also omit the start tag if the head element is empty
+            if type in ("StartTag", "EmptyTag"):
+                return True
+            elif type == "EndTag":
+                return next["name"] == "head"
+        elif tagname == 'body':
+            # A body element's start tag may be omitted if the first thing
+            # inside the body element is not a space character or a comment,
+            # except if the first thing inside the body element is a script
+            # or style element and the node immediately preceding the body
+            # element is a head element whose end tag has been omitted.
+            if type in ("Comment", "SpaceCharacters"):
+                return False
+            elif type == "StartTag":
+                # XXX: we do not look at the preceding event, so we never omit
+                # the body element's start tag if it's followed by a script or
+                # a style element.
+                return next["name"] not in ('script', 'style')
+            else:
+                return True
+        elif tagname == 'colgroup':
+            # A colgroup element's start tag may be omitted if the first thing
+            # inside the colgroup element is a col element, and if the element
+            # is not immediately preceded by another colgroup element whose
+            # end tag has been omitted.
+            if type in ("StartTag", "EmptyTag"):
+                # XXX: we do not look at the preceding event, so instead we never
+                # omit the colgroup element's end tag when it is immediately
+                # followed by another colgroup element. See is_optional_end.
+                return next["name"] == "col"
+            else:
+                return False
+        elif tagname == 'tbody':
+            # A tbody element's start tag may be omitted if the first thing
+            # inside the tbody element is a tr element, and if the element is
+            # not immediately preceded by a tbody, thead, or tfoot element
+            # whose end tag has been omitted.
+            if type == "StartTag":
+                # omit the thead and tfoot elements' end tag when they are
+                # immediately followed by a tbody element. See is_optional_end.
+                if previous and previous['type'] == 'EndTag' and \
+                        previous['name'] in ('tbody', 'thead', 'tfoot'):
+                    return False
+                return next["name"] == 'tr'
+            else:
+                return False
+        return False
+
+    def is_optional_end(self, tagname, next):
+        type = next and next["type"] or None
+        if tagname in ('html', 'head', 'body'):
+            # An html element's end tag may be omitted if the html element
+            # is not immediately followed by a space character or a comment.
+            return type not in ("Comment", "SpaceCharacters")
+        elif tagname in ('li', 'optgroup', 'tr'):
+            # A li element's end tag may be omitted if the li element is
+            # immediately followed by another li element or if there is
+            # no more content in the parent element.
+            # An optgroup element's end tag may be omitted if the optgroup
+            # element is immediately followed by another optgroup element,
+            # or if there is no more content in the parent element.
+            # A tr element's end tag may be omitted if the tr element is
+            # immediately followed by another tr element, or if there is
+            # no more content in the parent element.
+            if type == "StartTag":
+                return next["name"] == tagname
+            else:
+                return type == "EndTag" or type is None
+        elif tagname in ('dt', 'dd'):
+            # A dt element's end tag may be omitted if the dt element is
+            # immediately followed by another dt element or a dd element.
+            # A dd element's end tag may be omitted if the dd element is
+            # immediately followed by another dd element or a dt element,
+            # or if there is no more content in the parent element.
+            if type == "StartTag":
+                return next["name"] in ('dt', 'dd')
+            elif tagname == 'dd':
+                return type == "EndTag" or type is None
+            else:
+                return False
+        elif tagname == 'p':
+            # A p element's end tag may be omitted if the p element is
+            # immediately followed by an address, article, aside,
+            # blockquote, datagrid, dialog, dir, div, dl, fieldset,
+            # footer, form, h1, h2, h3, h4, h5, h6, header, hr, menu,
+            # nav, ol, p, pre, section, table, or ul, element, or if
+            # there is no more content in the parent element.
+            if type in ("StartTag", "EmptyTag"):
+                return next["name"] in ('address', 'article', 'aside',
+                                        'blockquote', 'datagrid', 'dialog',
+                                        'dir', 'div', 'dl', 'fieldset', 'footer',
+                                        'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6',
+                                        'header', 'hr', 'menu', 'nav', 'ol',
+                                        'p', 'pre', 'section', 'table', 'ul')
+            else:
+                return type == "EndTag" or type is None
+        elif tagname == 'option':
+            # An option element's end tag may be omitted if the option
+            # element is immediately followed by another option element,
+            # or if it is immediately followed by an optgroup
+            # element, or if there is no more content in the parent
+            # element.
+            if type == "StartTag":
+                return next["name"] in ('option', 'optgroup')
+            else:
+                return type == "EndTag" or type is None
+        elif tagname in ('rt', 'rp'):
+            # An rt element's end tag may be omitted if the rt element is
+            # immediately followed by an rt or rp element, or if there is
+            # no more content in the parent element.
+            # An rp element's end tag may be omitted if the rp element is
+            # immediately followed by an rt or rp element, or if there is
+            # no more content in the parent element.
+            if type == "StartTag":
+                return next["name"] in ('rt', 'rp')
+            else:
+                return type == "EndTag" or type is None
+        elif tagname == 'colgroup':
+            # A colgroup element's end tag may be omitted if the colgroup
+            # element is not immediately followed by a space character or
+            # a comment.
+            if type in ("Comment", "SpaceCharacters"):
+                return False
+            elif type == "StartTag":
+                # XXX: we also look for an immediately following colgroup
+                # element. See is_optional_start.
+                return next["name"] != 'colgroup'
+            else:
+                return True
+        elif tagname in ('thead', 'tbody'):
+            # A thead element's end tag may be omitted if the thead element
+            # is immediately followed by a tbody or tfoot element.
+            # A tbody element's end tag may be omitted if the tbody element
+            # is immediately followed by a tbody or tfoot element, or if
+            # there is no more content in the parent element.
+            # A tfoot element's end tag may be omitted if the tfoot element
+            # is immediately followed by a tbody element, or if there is no
+            # more content in the parent element.
+            # XXX: we never omit the end tag when the following element is
+            # a tbody. See is_optional_start.
+            if type == "StartTag":
+                return next["name"] in ['tbody', 'tfoot']
+            elif tagname == 'tbody':
+                return type == "EndTag" or type is None
+            else:
+                return False
+        elif tagname == 'tfoot':
+            # A tfoot element's end tag may be omitted if the tfoot element
+            # is immediately followed by a tbody element, or if there is no
+            # more content in the parent element.
+            # XXX: we never omit the end tag when the following element is
+            # a tbody. See is_optional_start.
+            if type == "StartTag":
+                return next["name"] == 'tbody'
+            else:
+                return type == "EndTag" or type is None
+        elif tagname in ('td', 'th'):
+            # A td element's end tag may be omitted if the td element is
+            # immediately followed by a td or th element, or if there is
+            # no more content in the parent element.
+            # A th element's end tag may be omitted if the th element is
+            # immediately followed by a td or th element, or if there is
+            # no more content in the parent element.
+            if type == "StartTag":
+                return next["name"] in ('td', 'th')
+            else:
+                return type == "EndTag" or type is None
+        return False
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/sanitizer.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/sanitizer.py
new file mode 100644
index 0000000..aa7431d
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/sanitizer.py
@@ -0,0 +1,916 @@
+"""Deprecated from html5lib 1.1.
+
+See `here `_ for
+information about its deprecation; `Bleach `_
+is recommended as a replacement. Please let us know in the aforementioned issue
+if Bleach is unsuitable for your needs.
+
+"""
+from __future__ import absolute_import, division, unicode_literals
+
+import re
+import warnings
+from xml.sax.saxutils import escape, unescape
+
+from pip._vendor.six.moves import urllib_parse as urlparse
+
+from . import base
+from ..constants import namespaces, prefixes
+
+__all__ = ["Filter"]
+
+
+_deprecation_msg = (
+    "html5lib's sanitizer is deprecated; see " +
+    "https://github.com/html5lib/html5lib-python/issues/443 and please let " +
+    "us know if Bleach is unsuitable for your needs"
+)
+
+warnings.warn(_deprecation_msg, DeprecationWarning)
+
+allowed_elements = frozenset((
+    (namespaces['html'], 'a'),
+    (namespaces['html'], 'abbr'),
+    (namespaces['html'], 'acronym'),
+    (namespaces['html'], 'address'),
+    (namespaces['html'], 'area'),
+    (namespaces['html'], 'article'),
+    (namespaces['html'], 'aside'),
+    (namespaces['html'], 'audio'),
+    (namespaces['html'], 'b'),
+    (namespaces['html'], 'big'),
+    (namespaces['html'], 'blockquote'),
+    (namespaces['html'], 'br'),
+    (namespaces['html'], 'button'),
+    (namespaces['html'], 'canvas'),
+    (namespaces['html'], 'caption'),
+    (namespaces['html'], 'center'),
+    (namespaces['html'], 'cite'),
+    (namespaces['html'], 'code'),
+    (namespaces['html'], 'col'),
+    (namespaces['html'], 'colgroup'),
+    (namespaces['html'], 'command'),
+    (namespaces['html'], 'datagrid'),
+    (namespaces['html'], 'datalist'),
+    (namespaces['html'], 'dd'),
+    (namespaces['html'], 'del'),
+    (namespaces['html'], 'details'),
+    (namespaces['html'], 'dfn'),
+    (namespaces['html'], 'dialog'),
+    (namespaces['html'], 'dir'),
+    (namespaces['html'], 'div'),
+    (namespaces['html'], 'dl'),
+    (namespaces['html'], 'dt'),
+    (namespaces['html'], 'em'),
+    (namespaces['html'], 'event-source'),
+    (namespaces['html'], 'fieldset'),
+    (namespaces['html'], 'figcaption'),
+    (namespaces['html'], 'figure'),
+    (namespaces['html'], 'footer'),
+    (namespaces['html'], 'font'),
+    (namespaces['html'], 'form'),
+    (namespaces['html'], 'header'),
+    (namespaces['html'], 'h1'),
+    (namespaces['html'], 'h2'),
+    (namespaces['html'], 'h3'),
+    (namespaces['html'], 'h4'),
+    (namespaces['html'], 'h5'),
+    (namespaces['html'], 'h6'),
+    (namespaces['html'], 'hr'),
+    (namespaces['html'], 'i'),
+    (namespaces['html'], 'img'),
+    (namespaces['html'], 'input'),
+    (namespaces['html'], 'ins'),
+    (namespaces['html'], 'keygen'),
+    (namespaces['html'], 'kbd'),
+    (namespaces['html'], 'label'),
+    (namespaces['html'], 'legend'),
+    (namespaces['html'], 'li'),
+    (namespaces['html'], 'm'),
+    (namespaces['html'], 'map'),
+    (namespaces['html'], 'menu'),
+    (namespaces['html'], 'meter'),
+    (namespaces['html'], 'multicol'),
+    (namespaces['html'], 'nav'),
+    (namespaces['html'], 'nextid'),
+    (namespaces['html'], 'ol'),
+    (namespaces['html'], 'output'),
+    (namespaces['html'], 'optgroup'),
+    (namespaces['html'], 'option'),
+    (namespaces['html'], 'p'),
+    (namespaces['html'], 'pre'),
+    (namespaces['html'], 'progress'),
+    (namespaces['html'], 'q'),
+    (namespaces['html'], 's'),
+    (namespaces['html'], 'samp'),
+    (namespaces['html'], 'section'),
+    (namespaces['html'], 'select'),
+    (namespaces['html'], 'small'),
+    (namespaces['html'], 'sound'),
+    (namespaces['html'], 'source'),
+    (namespaces['html'], 'spacer'),
+    (namespaces['html'], 'span'),
+    (namespaces['html'], 'strike'),
+    (namespaces['html'], 'strong'),
+    (namespaces['html'], 'sub'),
+    (namespaces['html'], 'sup'),
+    (namespaces['html'], 'table'),
+    (namespaces['html'], 'tbody'),
+    (namespaces['html'], 'td'),
+    (namespaces['html'], 'textarea'),
+    (namespaces['html'], 'time'),
+    (namespaces['html'], 'tfoot'),
+    (namespaces['html'], 'th'),
+    (namespaces['html'], 'thead'),
+    (namespaces['html'], 'tr'),
+    (namespaces['html'], 'tt'),
+    (namespaces['html'], 'u'),
+    (namespaces['html'], 'ul'),
+    (namespaces['html'], 'var'),
+    (namespaces['html'], 'video'),
+    (namespaces['mathml'], 'maction'),
+    (namespaces['mathml'], 'math'),
+    (namespaces['mathml'], 'merror'),
+    (namespaces['mathml'], 'mfrac'),
+    (namespaces['mathml'], 'mi'),
+    (namespaces['mathml'], 'mmultiscripts'),
+    (namespaces['mathml'], 'mn'),
+    (namespaces['mathml'], 'mo'),
+    (namespaces['mathml'], 'mover'),
+    (namespaces['mathml'], 'mpadded'),
+    (namespaces['mathml'], 'mphantom'),
+    (namespaces['mathml'], 'mprescripts'),
+    (namespaces['mathml'], 'mroot'),
+    (namespaces['mathml'], 'mrow'),
+    (namespaces['mathml'], 'mspace'),
+    (namespaces['mathml'], 'msqrt'),
+    (namespaces['mathml'], 'mstyle'),
+    (namespaces['mathml'], 'msub'),
+    (namespaces['mathml'], 'msubsup'),
+    (namespaces['mathml'], 'msup'),
+    (namespaces['mathml'], 'mtable'),
+    (namespaces['mathml'], 'mtd'),
+    (namespaces['mathml'], 'mtext'),
+    (namespaces['mathml'], 'mtr'),
+    (namespaces['mathml'], 'munder'),
+    (namespaces['mathml'], 'munderover'),
+    (namespaces['mathml'], 'none'),
+    (namespaces['svg'], 'a'),
+    (namespaces['svg'], 'animate'),
+    (namespaces['svg'], 'animateColor'),
+    (namespaces['svg'], 'animateMotion'),
+    (namespaces['svg'], 'animateTransform'),
+    (namespaces['svg'], 'clipPath'),
+    (namespaces['svg'], 'circle'),
+    (namespaces['svg'], 'defs'),
+    (namespaces['svg'], 'desc'),
+    (namespaces['svg'], 'ellipse'),
+    (namespaces['svg'], 'font-face'),
+    (namespaces['svg'], 'font-face-name'),
+    (namespaces['svg'], 'font-face-src'),
+    (namespaces['svg'], 'g'),
+    (namespaces['svg'], 'glyph'),
+    (namespaces['svg'], 'hkern'),
+    (namespaces['svg'], 'linearGradient'),
+    (namespaces['svg'], 'line'),
+    (namespaces['svg'], 'marker'),
+    (namespaces['svg'], 'metadata'),
+    (namespaces['svg'], 'missing-glyph'),
+    (namespaces['svg'], 'mpath'),
+    (namespaces['svg'], 'path'),
+    (namespaces['svg'], 'polygon'),
+    (namespaces['svg'], 'polyline'),
+    (namespaces['svg'], 'radialGradient'),
+    (namespaces['svg'], 'rect'),
+    (namespaces['svg'], 'set'),
+    (namespaces['svg'], 'stop'),
+    (namespaces['svg'], 'svg'),
+    (namespaces['svg'], 'switch'),
+    (namespaces['svg'], 'text'),
+    (namespaces['svg'], 'title'),
+    (namespaces['svg'], 'tspan'),
+    (namespaces['svg'], 'use'),
+))
+
+allowed_attributes = frozenset((
+    # HTML attributes
+    (None, 'abbr'),
+    (None, 'accept'),
+    (None, 'accept-charset'),
+    (None, 'accesskey'),
+    (None, 'action'),
+    (None, 'align'),
+    (None, 'alt'),
+    (None, 'autocomplete'),
+    (None, 'autofocus'),
+    (None, 'axis'),
+    (None, 'background'),
+    (None, 'balance'),
+    (None, 'bgcolor'),
+    (None, 'bgproperties'),
+    (None, 'border'),
+    (None, 'bordercolor'),
+    (None, 'bordercolordark'),
+    (None, 'bordercolorlight'),
+    (None, 'bottompadding'),
+    (None, 'cellpadding'),
+    (None, 'cellspacing'),
+    (None, 'ch'),
+    (None, 'challenge'),
+    (None, 'char'),
+    (None, 'charoff'),
+    (None, 'choff'),
+    (None, 'charset'),
+    (None, 'checked'),
+    (None, 'cite'),
+    (None, 'class'),
+    (None, 'clear'),
+    (None, 'color'),
+    (None, 'cols'),
+    (None, 'colspan'),
+    (None, 'compact'),
+    (None, 'contenteditable'),
+    (None, 'controls'),
+    (None, 'coords'),
+    (None, 'data'),
+    (None, 'datafld'),
+    (None, 'datapagesize'),
+    (None, 'datasrc'),
+    (None, 'datetime'),
+    (None, 'default'),
+    (None, 'delay'),
+    (None, 'dir'),
+    (None, 'disabled'),
+    (None, 'draggable'),
+    (None, 'dynsrc'),
+    (None, 'enctype'),
+    (None, 'end'),
+    (None, 'face'),
+    (None, 'for'),
+    (None, 'form'),
+    (None, 'frame'),
+    (None, 'galleryimg'),
+    (None, 'gutter'),
+    (None, 'headers'),
+    (None, 'height'),
+    (None, 'hidefocus'),
+    (None, 'hidden'),
+    (None, 'high'),
+    (None, 'href'),
+    (None, 'hreflang'),
+    (None, 'hspace'),
+    (None, 'icon'),
+    (None, 'id'),
+    (None, 'inputmode'),
+    (None, 'ismap'),
+    (None, 'keytype'),
+    (None, 'label'),
+    (None, 'leftspacing'),
+    (None, 'lang'),
+    (None, 'list'),
+    (None, 'longdesc'),
+    (None, 'loop'),
+    (None, 'loopcount'),
+    (None, 'loopend'),
+    (None, 'loopstart'),
+    (None, 'low'),
+    (None, 'lowsrc'),
+    (None, 'max'),
+    (None, 'maxlength'),
+    (None, 'media'),
+    (None, 'method'),
+    (None, 'min'),
+    (None, 'multiple'),
+    (None, 'name'),
+    (None, 'nohref'),
+    (None, 'noshade'),
+    (None, 'nowrap'),
+    (None, 'open'),
+    (None, 'optimum'),
+    (None, 'pattern'),
+    (None, 'ping'),
+    (None, 'point-size'),
+    (None, 'poster'),
+    (None, 'pqg'),
+    (None, 'preload'),
+    (None, 'prompt'),
+    (None, 'radiogroup'),
+    (None, 'readonly'),
+    (None, 'rel'),
+    (None, 'repeat-max'),
+    (None, 'repeat-min'),
+    (None, 'replace'),
+    (None, 'required'),
+    (None, 'rev'),
+    (None, 'rightspacing'),
+    (None, 'rows'),
+    (None, 'rowspan'),
+    (None, 'rules'),
+    (None, 'scope'),
+    (None, 'selected'),
+    (None, 'shape'),
+    (None, 'size'),
+    (None, 'span'),
+    (None, 'src'),
+    (None, 'start'),
+    (None, 'step'),
+    (None, 'style'),
+    (None, 'summary'),
+    (None, 'suppress'),
+    (None, 'tabindex'),
+    (None, 'target'),
+    (None, 'template'),
+    (None, 'title'),
+    (None, 'toppadding'),
+    (None, 'type'),
+    (None, 'unselectable'),
+    (None, 'usemap'),
+    (None, 'urn'),
+    (None, 'valign'),
+    (None, 'value'),
+    (None, 'variable'),
+    (None, 'volume'),
+    (None, 'vspace'),
+    (None, 'vrml'),
+    (None, 'width'),
+    (None, 'wrap'),
+    (namespaces['xml'], 'lang'),
+    # MathML attributes
+    (None, 'actiontype'),
+    (None, 'align'),
+    (None, 'columnalign'),
+    (None, 'columnalign'),
+    (None, 'columnalign'),
+    (None, 'columnlines'),
+    (None, 'columnspacing'),
+    (None, 'columnspan'),
+    (None, 'depth'),
+    (None, 'display'),
+    (None, 'displaystyle'),
+    (None, 'equalcolumns'),
+    (None, 'equalrows'),
+    (None, 'fence'),
+    (None, 'fontstyle'),
+    (None, 'fontweight'),
+    (None, 'frame'),
+    (None, 'height'),
+    (None, 'linethickness'),
+    (None, 'lspace'),
+    (None, 'mathbackground'),
+    (None, 'mathcolor'),
+    (None, 'mathvariant'),
+    (None, 'mathvariant'),
+    (None, 'maxsize'),
+    (None, 'minsize'),
+    (None, 'other'),
+    (None, 'rowalign'),
+    (None, 'rowalign'),
+    (None, 'rowalign'),
+    (None, 'rowlines'),
+    (None, 'rowspacing'),
+    (None, 'rowspan'),
+    (None, 'rspace'),
+    (None, 'scriptlevel'),
+    (None, 'selection'),
+    (None, 'separator'),
+    (None, 'stretchy'),
+    (None, 'width'),
+    (None, 'width'),
+    (namespaces['xlink'], 'href'),
+    (namespaces['xlink'], 'show'),
+    (namespaces['xlink'], 'type'),
+    # SVG attributes
+    (None, 'accent-height'),
+    (None, 'accumulate'),
+    (None, 'additive'),
+    (None, 'alphabetic'),
+    (None, 'arabic-form'),
+    (None, 'ascent'),
+    (None, 'attributeName'),
+    (None, 'attributeType'),
+    (None, 'baseProfile'),
+    (None, 'bbox'),
+    (None, 'begin'),
+    (None, 'by'),
+    (None, 'calcMode'),
+    (None, 'cap-height'),
+    (None, 'class'),
+    (None, 'clip-path'),
+    (None, 'color'),
+    (None, 'color-rendering'),
+    (None, 'content'),
+    (None, 'cx'),
+    (None, 'cy'),
+    (None, 'd'),
+    (None, 'dx'),
+    (None, 'dy'),
+    (None, 'descent'),
+    (None, 'display'),
+    (None, 'dur'),
+    (None, 'end'),
+    (None, 'fill'),
+    (None, 'fill-opacity'),
+    (None, 'fill-rule'),
+    (None, 'font-family'),
+    (None, 'font-size'),
+    (None, 'font-stretch'),
+    (None, 'font-style'),
+    (None, 'font-variant'),
+    (None, 'font-weight'),
+    (None, 'from'),
+    (None, 'fx'),
+    (None, 'fy'),
+    (None, 'g1'),
+    (None, 'g2'),
+    (None, 'glyph-name'),
+    (None, 'gradientUnits'),
+    (None, 'hanging'),
+    (None, 'height'),
+    (None, 'horiz-adv-x'),
+    (None, 'horiz-origin-x'),
+    (None, 'id'),
+    (None, 'ideographic'),
+    (None, 'k'),
+    (None, 'keyPoints'),
+    (None, 'keySplines'),
+    (None, 'keyTimes'),
+    (None, 'lang'),
+    (None, 'marker-end'),
+    (None, 'marker-mid'),
+    (None, 'marker-start'),
+    (None, 'markerHeight'),
+    (None, 'markerUnits'),
+    (None, 'markerWidth'),
+    (None, 'mathematical'),
+    (None, 'max'),
+    (None, 'min'),
+    (None, 'name'),
+    (None, 'offset'),
+    (None, 'opacity'),
+    (None, 'orient'),
+    (None, 'origin'),
+    (None, 'overline-position'),
+    (None, 'overline-thickness'),
+    (None, 'panose-1'),
+    (None, 'path'),
+    (None, 'pathLength'),
+    (None, 'points'),
+    (None, 'preserveAspectRatio'),
+    (None, 'r'),
+    (None, 'refX'),
+    (None, 'refY'),
+    (None, 'repeatCount'),
+    (None, 'repeatDur'),
+    (None, 'requiredExtensions'),
+    (None, 'requiredFeatures'),
+    (None, 'restart'),
+    (None, 'rotate'),
+    (None, 'rx'),
+    (None, 'ry'),
+    (None, 'slope'),
+    (None, 'stemh'),
+    (None, 'stemv'),
+    (None, 'stop-color'),
+    (None, 'stop-opacity'),
+    (None, 'strikethrough-position'),
+    (None, 'strikethrough-thickness'),
+    (None, 'stroke'),
+    (None, 'stroke-dasharray'),
+    (None, 'stroke-dashoffset'),
+    (None, 'stroke-linecap'),
+    (None, 'stroke-linejoin'),
+    (None, 'stroke-miterlimit'),
+    (None, 'stroke-opacity'),
+    (None, 'stroke-width'),
+    (None, 'systemLanguage'),
+    (None, 'target'),
+    (None, 'text-anchor'),
+    (None, 'to'),
+    (None, 'transform'),
+    (None, 'type'),
+    (None, 'u1'),
+    (None, 'u2'),
+    (None, 'underline-position'),
+    (None, 'underline-thickness'),
+    (None, 'unicode'),
+    (None, 'unicode-range'),
+    (None, 'units-per-em'),
+    (None, 'values'),
+    (None, 'version'),
+    (None, 'viewBox'),
+    (None, 'visibility'),
+    (None, 'width'),
+    (None, 'widths'),
+    (None, 'x'),
+    (None, 'x-height'),
+    (None, 'x1'),
+    (None, 'x2'),
+    (namespaces['xlink'], 'actuate'),
+    (namespaces['xlink'], 'arcrole'),
+    (namespaces['xlink'], 'href'),
+    (namespaces['xlink'], 'role'),
+    (namespaces['xlink'], 'show'),
+    (namespaces['xlink'], 'title'),
+    (namespaces['xlink'], 'type'),
+    (namespaces['xml'], 'base'),
+    (namespaces['xml'], 'lang'),
+    (namespaces['xml'], 'space'),
+    (None, 'y'),
+    (None, 'y1'),
+    (None, 'y2'),
+    (None, 'zoomAndPan'),
+))
+
+attr_val_is_uri = frozenset((
+    (None, 'href'),
+    (None, 'src'),
+    (None, 'cite'),
+    (None, 'action'),
+    (None, 'longdesc'),
+    (None, 'poster'),
+    (None, 'background'),
+    (None, 'datasrc'),
+    (None, 'dynsrc'),
+    (None, 'lowsrc'),
+    (None, 'ping'),
+    (namespaces['xlink'], 'href'),
+    (namespaces['xml'], 'base'),
+))
+
+svg_attr_val_allows_ref = frozenset((
+    (None, 'clip-path'),
+    (None, 'color-profile'),
+    (None, 'cursor'),
+    (None, 'fill'),
+    (None, 'filter'),
+    (None, 'marker'),
+    (None, 'marker-start'),
+    (None, 'marker-mid'),
+    (None, 'marker-end'),
+    (None, 'mask'),
+    (None, 'stroke'),
+))
+
+svg_allow_local_href = frozenset((
+    (None, 'altGlyph'),
+    (None, 'animate'),
+    (None, 'animateColor'),
+    (None, 'animateMotion'),
+    (None, 'animateTransform'),
+    (None, 'cursor'),
+    (None, 'feImage'),
+    (None, 'filter'),
+    (None, 'linearGradient'),
+    (None, 'pattern'),
+    (None, 'radialGradient'),
+    (None, 'textpath'),
+    (None, 'tref'),
+    (None, 'set'),
+    (None, 'use')
+))
+
+allowed_css_properties = frozenset((
+    'azimuth',
+    'background-color',
+    'border-bottom-color',
+    'border-collapse',
+    'border-color',
+    'border-left-color',
+    'border-right-color',
+    'border-top-color',
+    'clear',
+    'color',
+    'cursor',
+    'direction',
+    'display',
+    'elevation',
+    'float',
+    'font',
+    'font-family',
+    'font-size',
+    'font-style',
+    'font-variant',
+    'font-weight',
+    'height',
+    'letter-spacing',
+    'line-height',
+    'overflow',
+    'pause',
+    'pause-after',
+    'pause-before',
+    'pitch',
+    'pitch-range',
+    'richness',
+    'speak',
+    'speak-header',
+    'speak-numeral',
+    'speak-punctuation',
+    'speech-rate',
+    'stress',
+    'text-align',
+    'text-decoration',
+    'text-indent',
+    'unicode-bidi',
+    'vertical-align',
+    'voice-family',
+    'volume',
+    'white-space',
+    'width',
+))
+
+allowed_css_keywords = frozenset((
+    'auto',
+    'aqua',
+    'black',
+    'block',
+    'blue',
+    'bold',
+    'both',
+    'bottom',
+    'brown',
+    'center',
+    'collapse',
+    'dashed',
+    'dotted',
+    'fuchsia',
+    'gray',
+    'green',
+    '!important',
+    'italic',
+    'left',
+    'lime',
+    'maroon',
+    'medium',
+    'none',
+    'navy',
+    'normal',
+    'nowrap',
+    'olive',
+    'pointer',
+    'purple',
+    'red',
+    'right',
+    'solid',
+    'silver',
+    'teal',
+    'top',
+    'transparent',
+    'underline',
+    'white',
+    'yellow',
+))
+
+allowed_svg_properties = frozenset((
+    'fill',
+    'fill-opacity',
+    'fill-rule',
+    'stroke',
+    'stroke-width',
+    'stroke-linecap',
+    'stroke-linejoin',
+    'stroke-opacity',
+))
+
+allowed_protocols = frozenset((
+    'ed2k',
+    'ftp',
+    'http',
+    'https',
+    'irc',
+    'mailto',
+    'news',
+    'gopher',
+    'nntp',
+    'telnet',
+    'webcal',
+    'xmpp',
+    'callto',
+    'feed',
+    'urn',
+    'aim',
+    'rsync',
+    'tag',
+    'ssh',
+    'sftp',
+    'rtsp',
+    'afs',
+    'data',
+))
+
+allowed_content_types = frozenset((
+    'image/png',
+    'image/jpeg',
+    'image/gif',
+    'image/webp',
+    'image/bmp',
+    'text/plain',
+))
+
+
+data_content_type = re.compile(r'''
+                                ^
+                                # Match a content type /
+                                (?P[-a-zA-Z0-9.]+/[-a-zA-Z0-9.]+)
+                                # Match any character set and encoding
+                                (?:(?:;charset=(?:[-a-zA-Z0-9]+)(?:;(?:base64))?)
+                                  |(?:;(?:base64))?(?:;charset=(?:[-a-zA-Z0-9]+))?)
+                                # Assume the rest is data
+                                ,.*
+                                $
+                                ''',
+                               re.VERBOSE)
+
+
+class Filter(base.Filter):
+    """Sanitizes token stream of XHTML+MathML+SVG and of inline style attributes"""
+    def __init__(self,
+                 source,
+                 allowed_elements=allowed_elements,
+                 allowed_attributes=allowed_attributes,
+                 allowed_css_properties=allowed_css_properties,
+                 allowed_css_keywords=allowed_css_keywords,
+                 allowed_svg_properties=allowed_svg_properties,
+                 allowed_protocols=allowed_protocols,
+                 allowed_content_types=allowed_content_types,
+                 attr_val_is_uri=attr_val_is_uri,
+                 svg_attr_val_allows_ref=svg_attr_val_allows_ref,
+                 svg_allow_local_href=svg_allow_local_href):
+        """Creates a Filter
+
+        :arg allowed_elements: set of elements to allow--everything else will
+            be escaped
+
+        :arg allowed_attributes: set of attributes to allow in
+            elements--everything else will be stripped
+
+        :arg allowed_css_properties: set of CSS properties to allow--everything
+            else will be stripped
+
+        :arg allowed_css_keywords: set of CSS keywords to allow--everything
+            else will be stripped
+
+        :arg allowed_svg_properties: set of SVG properties to allow--everything
+            else will be removed
+
+        :arg allowed_protocols: set of allowed protocols for URIs
+
+        :arg allowed_content_types: set of allowed content types for ``data`` URIs.
+
+        :arg attr_val_is_uri: set of attributes that have URI values--values
+            that have a scheme not listed in ``allowed_protocols`` are removed
+
+        :arg svg_attr_val_allows_ref: set of SVG attributes that can have
+            references
+
+        :arg svg_allow_local_href: set of SVG elements that can have local
+            hrefs--these are removed
+
+        """
+        super(Filter, self).__init__(source)
+
+        warnings.warn(_deprecation_msg, DeprecationWarning)
+
+        self.allowed_elements = allowed_elements
+        self.allowed_attributes = allowed_attributes
+        self.allowed_css_properties = allowed_css_properties
+        self.allowed_css_keywords = allowed_css_keywords
+        self.allowed_svg_properties = allowed_svg_properties
+        self.allowed_protocols = allowed_protocols
+        self.allowed_content_types = allowed_content_types
+        self.attr_val_is_uri = attr_val_is_uri
+        self.svg_attr_val_allows_ref = svg_attr_val_allows_ref
+        self.svg_allow_local_href = svg_allow_local_href
+
+    def __iter__(self):
+        for token in base.Filter.__iter__(self):
+            token = self.sanitize_token(token)
+            if token:
+                yield token
+
+    # Sanitize the +html+, escaping all elements not in ALLOWED_ELEMENTS, and
+    # stripping out all attributes not in ALLOWED_ATTRIBUTES. Style attributes
+    # are parsed, and a restricted set, specified by ALLOWED_CSS_PROPERTIES and
+    # ALLOWED_CSS_KEYWORDS, are allowed through. attributes in ATTR_VAL_IS_URI
+    # are scanned, and only URI schemes specified in ALLOWED_PROTOCOLS are
+    # allowed.
+    #
+    #   sanitize_html('')
+    #    => <script> do_nasty_stuff() </script>
+    #   sanitize_html('Click here for $100')
+    #    => Click here for $100
+    def sanitize_token(self, token):
+
+        # accommodate filters which use token_type differently
+        token_type = token["type"]
+        if token_type in ("StartTag", "EndTag", "EmptyTag"):
+            name = token["name"]
+            namespace = token["namespace"]
+            if ((namespace, name) in self.allowed_elements or
+                (namespace is None and
+                 (namespaces["html"], name) in self.allowed_elements)):
+                return self.allowed_token(token)
+            else:
+                return self.disallowed_token(token)
+        elif token_type == "Comment":
+            pass
+        else:
+            return token
+
+    def allowed_token(self, token):
+        if "data" in token:
+            attrs = token["data"]
+            attr_names = set(attrs.keys())
+
+            # Remove forbidden attributes
+            for to_remove in (attr_names - self.allowed_attributes):
+                del token["data"][to_remove]
+                attr_names.remove(to_remove)
+
+            # Remove attributes with disallowed URL values
+            for attr in (attr_names & self.attr_val_is_uri):
+                assert attr in attrs
+                # I don't have a clue where this regexp comes from or why it matches those
+                # characters, nor why we call unescape. I just know it's always been here.
+                # Should you be worried by this comment in a sanitizer? Yes. On the other hand, all
+                # this will do is remove *more* than it otherwise would.
+                val_unescaped = re.sub("[`\x00-\x20\x7f-\xa0\\s]+", '',
+                                       unescape(attrs[attr])).lower()
+                # remove replacement characters from unescaped characters
+                val_unescaped = val_unescaped.replace("\ufffd", "")
+                try:
+                    uri = urlparse.urlparse(val_unescaped)
+                except ValueError:
+                    uri = None
+                    del attrs[attr]
+                if uri and uri.scheme:
+                    if uri.scheme not in self.allowed_protocols:
+                        del attrs[attr]
+                    if uri.scheme == 'data':
+                        m = data_content_type.match(uri.path)
+                        if not m:
+                            del attrs[attr]
+                        elif m.group('content_type') not in self.allowed_content_types:
+                            del attrs[attr]
+
+            for attr in self.svg_attr_val_allows_ref:
+                if attr in attrs:
+                    attrs[attr] = re.sub(r'url\s*\(\s*[^#\s][^)]+?\)',
+                                         ' ',
+                                         unescape(attrs[attr]))
+            if (token["name"] in self.svg_allow_local_href and
+                (namespaces['xlink'], 'href') in attrs and re.search(r'^\s*[^#\s].*',
+                                                                     attrs[(namespaces['xlink'], 'href')])):
+                del attrs[(namespaces['xlink'], 'href')]
+            if (None, 'style') in attrs:
+                attrs[(None, 'style')] = self.sanitize_css(attrs[(None, 'style')])
+            token["data"] = attrs
+        return token
+
+    def disallowed_token(self, token):
+        token_type = token["type"]
+        if token_type == "EndTag":
+            token["data"] = "" % token["name"]
+        elif token["data"]:
+            assert token_type in ("StartTag", "EmptyTag")
+            attrs = []
+            for (ns, name), v in token["data"].items():
+                attrs.append(' %s="%s"' % (name if ns is None else "%s:%s" % (prefixes[ns], name), escape(v)))
+            token["data"] = "<%s%s>" % (token["name"], ''.join(attrs))
+        else:
+            token["data"] = "<%s>" % token["name"]
+        if token.get("selfClosing"):
+            token["data"] = token["data"][:-1] + "/>"
+
+        token["type"] = "Characters"
+
+        del token["name"]
+        return token
+
+    def sanitize_css(self, style):
+        # disallow urls
+        style = re.compile(r'url\s*\(\s*[^\s)]+?\s*\)\s*').sub(' ', style)
+
+        # gauntlet
+        if not re.match(r"""^([:,;#%.\sa-zA-Z0-9!]|\w-\w|'[\s\w]+'|"[\s\w]+"|\([\d,\s]+\))*$""", style):
+            return ''
+        if not re.match(r"^\s*([-\w]+\s*:[^:;]*(;\s*|$))*$", style):
+            return ''
+
+        clean = []
+        for prop, value in re.findall(r"([-\w]+)\s*:\s*([^:;]*)", style):
+            if not value:
+                continue
+            if prop.lower() in self.allowed_css_properties:
+                clean.append(prop + ': ' + value + ';')
+            elif prop.split('-')[0].lower() in ['background', 'border', 'margin',
+                                                'padding']:
+                for keyword in value.split():
+                    if keyword not in self.allowed_css_keywords and \
+                            not re.match(r"^(#[0-9a-fA-F]+|rgb\(\d+%?,\d*%?,?\d*%?\)?|\d{0,2}\.?\d{0,2}(cm|em|ex|in|mm|pc|pt|px|%|,|\))?)$", keyword):  # noqa
+                        break
+                else:
+                    clean.append(prop + ': ' + value + ';')
+            elif prop.lower() in self.allowed_svg_properties:
+                clean.append(prop + ': ' + value + ';')
+
+        return ' '.join(clean)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/whitespace.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/whitespace.py
new file mode 100644
index 0000000..0d12584
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/filters/whitespace.py
@@ -0,0 +1,38 @@
+from __future__ import absolute_import, division, unicode_literals
+
+import re
+
+from . import base
+from ..constants import rcdataElements, spaceCharacters
+spaceCharacters = "".join(spaceCharacters)
+
+SPACES_REGEX = re.compile("[%s]+" % spaceCharacters)
+
+
+class Filter(base.Filter):
+    """Collapses whitespace except in pre, textarea, and script elements"""
+    spacePreserveElements = frozenset(["pre", "textarea"] + list(rcdataElements))
+
+    def __iter__(self):
+        preserve = 0
+        for token in base.Filter.__iter__(self):
+            type = token["type"]
+            if type == "StartTag" \
+                    and (preserve or token["name"] in self.spacePreserveElements):
+                preserve += 1
+
+            elif type == "EndTag" and preserve:
+                preserve -= 1
+
+            elif not preserve and type == "SpaceCharacters" and token["data"]:
+                # Test on token["data"] above to not introduce spaces where there were not
+                token["data"] = " "
+
+            elif not preserve and type == "Characters":
+                token["data"] = collapse_spaces(token["data"])
+
+            yield token
+
+
+def collapse_spaces(text):
+    return SPACES_REGEX.sub(' ', text)
diff --git a/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/html5parser.py b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/html5parser.py
new file mode 100644
index 0000000..d06784f
--- /dev/null
+++ b/utils/python-venv/Lib/site-packages/pip/_vendor/html5lib/html5parser.py
@@ -0,0 +1,2795 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import with_metaclass, viewkeys
+
+import types
+
+from . import _inputstream
+from . import _tokenizer
+
+from . import treebuilders
+from .treebuilders.base import Marker
+
+from . import _utils
+from .constants import (
+    spaceCharacters, asciiUpper2Lower,
+    specialElements, headingElements, cdataElements, rcdataElements,
+    tokenTypes, tagTokenTypes,
+    namespaces,
+    htmlIntegrationPointElements, mathmlTextIntegrationPointElements,
+    adjustForeignAttributes as adjustForeignAttributesMap,
+    adjustMathMLAttributes, adjustSVGAttributes,
+    E,
+    _ReparseException
+)
+
+
+def parse(doc, treebuilder="etree", namespaceHTMLElements=True, **kwargs):
+    """Parse an HTML document as a string or file-like object into a tree
+
+    :arg doc: the document to parse as a string or file-like object
+
+    :arg treebuilder: the treebuilder to use when parsing
+
+    :arg namespaceHTMLElements: whether or not to namespace HTML elements
+
+    :returns: parsed tree
+
+    Example:
+
+    >>> from html5lib.html5parser import parse
+    >>> parse('
    This is a doc
    ')
+    
+
+    """
+    tb = treebuilders.getTreeBuilder(treebuilder)
+    p = HTMLParser(tb, namespaceHTMLElements=namespaceHTMLElements)
+    return p.parse(doc, **kwargs)
+
+
+def parseFragment(doc, container="div", treebuilder="etree", namespaceHTMLElements=True, **kwargs):
+    """Parse an HTML fragment as a string or file-like object into a tree
+
+    :arg doc: the fragment to parse as a string or file-like object
+
+    :arg container: the container context to parse the fragment in
+
+    :arg treebuilder: the treebuilder to use when parsing
+
+    :arg namespaceHTMLElements: whether or not to namespace HTML elements
+
+    :returns: parsed tree
+
+    Example:
+
+    >>> from html5lib.html5libparser import parseFragment
+    >>> parseFragment('this is a fragment')
+    
+
+    """
+    tb = treebuilders.getTreeBuilder(treebuilder)
+    p = HTMLParser(tb, namespaceHTMLElements=namespaceHTMLElements)
+    return p.parseFragment(doc, container=container, **kwargs)
+
+
+def method_decorator_metaclass(function):
+    class Decorated(type):
+        def __new__(meta, classname, bases, classDict):
+            for attributeName, attribute in classDict.items():
+                if isinstance(attribute, types.FunctionType):
+                    attribute = function(attribute)
+
+                classDict[attributeName] = attribute
+            return type.__new__(meta, classname, bases, classDict)
+    return Decorated
+
+
+class HTMLParser(object):
+    """HTML parser
+
+    Generates a tree structure from a stream of (possibly malformed) HTML.
+
+    """
+
+    def __init__(self, tree=None, strict=False, namespaceHTMLElements=True, debug=False):
+        """
+        :arg tree: a treebuilder class controlling the type of tree that will be
+            returned. Built in treebuilders can be accessed through
+            html5lib.treebuilders.getTreeBuilder(treeType)
+
+        :arg strict: raise an exception when a parse error is encountered
+
+        :arg namespaceHTMLElements: whether or not to namespace HTML elements
+
+        :arg debug: whether or not to enable debug mode which logs things
+
+        Example:
+
+        >>> from html5lib.html5parser import HTMLParser
+        >>> parser = HTMLParser()                     # generates parser with etree builder
+        >>> parser = HTMLParser('lxml', strict=True)  # generates parser with lxml builder which is strict
+
+        """
+
+        # Raise an exception on the first error encountered
+        self.strict = strict
+
+        if tree is None:
+            tree = treebuilders.getTreeBuilder("etree")
+        self.tree = tree(namespaceHTMLElements)
+        self.errors = []
+
+        self.phases = {name: cls(self, self.tree) for name, cls in
+                       getPhases(debug).items()}
+
+    def _parse(self, stream, innerHTML=False, container="div", scripting=False, **kwargs):
+
+        self.innerHTMLMode = innerHTML
+        self.container = container
+        self.scripting = scripting
+        self.tokenizer = _tokenizer.HTMLTokenizer(stream, parser=self, **kwargs)
+        self.reset()
+
+        try:
+            self.mainLoop()
+        except _ReparseException:
+            self.reset()
+            self.mainLoop()
+
+    def reset(self):
+        self.tree.reset()
+        self.firstStartTag = False
+        self.errors = []
+        self.log = []  # only used with debug mode
+        # "quirks" / "limited quirks" / "no quirks"
+        self.compatMode = "no quirks"
+
+        if self.innerHTMLMode:
+            self.innerHTML = self.container.lower()
+
+            if self.innerHTML in cdataElements:
+                self.tokenizer.state = self.tokenizer.rcdataState
+            elif self.innerHTML in rcdataElements:
+                self.tokenizer.state = self.tokenizer.rawtextState
+            elif self.innerHTML == 'plaintext':
+                self.tokenizer.state = self.tokenizer.plaintextState
+            else:
+                # state already is data state
+                # self.tokenizer.state = self.tokenizer.dataState
+                pass
+            self.phase = self.phases["beforeHtml"]
+            self.phase.insertHtmlElement()
+            self.resetInsertionMode()
+        else:
+            self.innerHTML = False  # pylint:disable=redefined-variable-type
+            self.phase = self.phases["initial"]
+
+        self.lastPhase = None
+
+        self.beforeRCDataPhase = None
+
+        self.framesetOK = True
+
+    @property
+    def documentEncoding(self):
+        """Name of the character encoding that was used to decode the input stream, or
+        :obj:`None` if that is not determined yet
+
+        """
+        if not hasattr(self, 'tokenizer'):
+            return None
+        return self.tokenizer.stream.charEncoding[0].name
+
+    def isHTMLIntegrationPoint(self, element):
+        if (element.name == "annotation-xml" and
+                element.namespace == namespaces["mathml"]):
+            return ("encoding" in element.attributes and
+                    element.attributes["encoding"].translate(
+                        asciiUpper2Lower) in
+                    ("text/html", "application/xhtml+xml"))
+        else:
+            return (element.namespace, element.name) in htmlIntegrationPointElements
+
+    def isMathMLTextIntegrationPoint(self, element):
+        return (element.namespace, element.name) in mathmlTextIntegrationPointElements
+
+    def mainLoop(self):
+        CharactersToken = tokenTypes["Characters"]
+        SpaceCharactersToken = tokenTypes["SpaceCharacters"]
+        StartTagToken = tokenTypes["StartTag"]
+        EndTagToken = tokenTypes["EndTag"]
+        CommentToken = tokenTypes["Comment"]
+        DoctypeToken = tokenTypes["Doctype"]
+        ParseErrorToken = tokenTypes["ParseError"]
+
+        for token in self.tokenizer:
+            prev_token = None
+            new_token = token
+            while new_token is not None:
+                prev_token = new_token
+                currentNode = self.tree.openElements[-1] if self.tree.openElements else None
+                currentNodeNamespace = currentNode.namespace if currentNode else None
+                currentNodeName = currentNode.name if currentNode else None
+
+                type = new_token["type"]
+
+                if type == ParseErrorToken:
+                    self.parseError(new_token["data"], new_token.get("datavars", {}))
+                    new_token = None
+                else:
+                    if (len(self.tree.openElements) == 0 or
+                        currentNodeNamespace == self.tree.defaultNamespace or
+                        (self.isMathMLTextIntegrationPoint(currentNode) and
+                         ((type == StartTagToken and
+                           token["name"] not in frozenset(["mglyph", "malignmark"])) or
+                          type in (CharactersToken, SpaceCharactersToken))) or
+                        (currentNodeNamespace == namespaces["mathml"] and
+                         currentNodeName == "annotation-xml" and
+                         type == StartTagToken and
+                         token["name"] == "svg") or
+                        (self.isHTMLIntegrationPoint(currentNode) and
+                         type in (StartTagToken, CharactersToken, SpaceCharactersToken))):
+                        phase = self.phase
+                    else:
+                        phase = self.phases["inForeignContent"]
+
+                    if type == CharactersToken:
+                        new_token = phase.processCharacters(new_token)
+                    elif type == SpaceCharactersToken:
+                        new_token = phase.processSpaceCharacters(new_token)
+                    elif type == StartTagToken:
+                        new_token = phase.processStartTag(new_token)
+                    elif type == EndTagToken:
+                        new_token = phase.processEndTag(new_token)
+                    elif type == CommentToken:
+                        new_token = phase.processComment(new_token)
+                    elif type == DoctypeToken:
+                        new_token = phase.processDoctype(new_token)
+
+            if (type == StartTagToken and prev_token["selfClosing"] and
+                    not prev_token["selfClosingAcknowledged"]):
+                self.parseError("non-void-element-with-trailing-solidus",
+                                {"name": prev_token["name"]})
+
+        # When the loop finishes it's EOF
+        reprocess = True
+        phases = []
+        while reprocess:
+            phases.append(self.phase)
+            reprocess = self.phase.processEOF()
+            if reprocess:
+                assert self.phase not in phases
+
+    def parse(self, stream, *args, **kwargs):
+        """Parse a HTML document into a well-formed tree
+
+        :arg stream: a file-like object or string containing the HTML to be parsed
+
+            The optional encoding parameter must be a string that indicates
+            the encoding.  If specified, that encoding will be used,
+            regardless of any BOM or later declaration (such as in a meta
+            element).
+
+        :arg scripting: treat noscript elements as if JavaScript was turned on
+
+        :returns: parsed tree
+
+        Example:
+
+        >>> from html5lib.html5parser import HTMLParser
+        >>> parser = HTMLParser()
+        >>> parser.parse('
    This is a doc
    ')
+        
+
+        """
+        self._parse(stream, False, None, *args, **kwargs)
+        return self.tree.getDocument()
+
+    def parseFragment(self, stream, *args, **kwargs):
+        """Parse a HTML fragment into a well-formed tree fragment
+
+        :arg container: name of the element we're setting the innerHTML
+            property if set to None, default to 'div'
+
+        :arg stream: a file-like object or string containing the HTML to be parsed
+
+            The optional encoding parameter must be a string that indicates
+            the encoding.  If specified, that encoding will be used,
+            regardless of any BOM or later declaration (such as in a meta
+            element)
+
+        :arg scripting: treat noscript elements as if JavaScript was turned on
+
+        :returns: parsed tree
+
+        Example:
+
+        >>> from html5lib.html5libparser import HTMLParser
+        >>> parser = HTMLParser()
+        >>> parser.parseFragment('this is a fragment')
+        
+
+        """
+        self._parse(stream, True, *args, **kwargs)
+        return self.tree.getFragment()
+
+    def parseError(self, errorcode="XXX-undefined-error", datavars=None):
+        # XXX The idea is to make errorcode mandatory.
+        if datavars is None:
+            datavars = {}
+        self.errors.append((self.tokenizer.stream.position(), errorcode, datavars))
+        if self.strict:
+            raise ParseError(E[errorcode] % datavars)
+
+    def adjustMathMLAttributes(self, token):
+        adjust_attributes(token, adjustMathMLAttributes)
+
+    def adjustSVGAttributes(self, token):
+        adjust_attributes(token, adjustSVGAttributes)
+
+    def adjustForeignAttributes(self, token):
+        adjust_attributes(token, adjustForeignAttributesMap)
+
+    def reparseTokenNormal(self, token):
+        # pylint:disable=unused-argument
+        self.parser.phase()
+
+    def resetInsertionMode(self):
+        # The name of this method is mostly historical. (It's also used in the
+        # specification.)
+        last = False
+        newModes = {
+            "select": "inSelect",
+            "td": "inCell",
+            "th": "inCell",
+            "tr": "inRow",
+            "tbody": "inTableBody",
+            "thead": "inTableBody",
+            "tfoot": "inTableBody",
+            "caption": "inCaption",
+            "colgroup": "inColumnGroup",
+            "table": "inTable",
+            "head": "inBody",
+            "body": "inBody",
+            "frameset": "inFrameset",
+            "html": "beforeHead"
+        }
+        for node in self.tree.openElements[::-1]:
+            nodeName = node.name
+            new_phase = None
+            if node == self.tree.openElements[0]:
+                assert self.innerHTML
+                last = True
+                nodeName = self.innerHTML
+            # Check for conditions that should only happen in the innerHTML
+            # case
+            if nodeName in ("select", "colgroup", "head", "html"):
+                assert self.innerHTML
+
+            if not last and node.namespace != self.tree.defaultNamespace:
+                continue
+
+            if nodeName in newModes:
+                new_phase = self.phases[newModes[nodeName]]
+                break
+            elif last:
+                new_phase = self.phases["inBody"]
+                break
+
+        self.phase = new_phase
+
+    def parseRCDataRawtext(self, token, contentType):
+        # Generic RCDATA/RAWTEXT Parsing algorithm
+        assert contentType in ("RAWTEXT", "RCDATA")
+
+        self.tree.insertElement(token)
+
+        if contentType == "RAWTEXT":
+            self.tokenizer.state = self.tokenizer.rawtextState
+        else:
+            self.tokenizer.state = self.tokenizer.rcdataState
+
+        self.originalPhase = self.phase
+
+        self.phase = self.phases["text"]
+
+
+@_utils.memoize
+def getPhases(debug):
+    def log(function):
+        """Logger that records which phase processes each token"""
+        type_names = {value: key for key, value in tokenTypes.items()}
+
+        def wrapped(self, *args, **kwargs):
+            if function.__name__.startswith("process") and len(args) > 0:
+                token = args[0]
+                info = {"type": type_names[token['type']]}
+                if token['type'] in tagTokenTypes:
+                    info["name"] = token['name']
+
+                self.parser.log.append((self.parser.tokenizer.state.__name__,
+                                        self.parser.phase.__class__.__name__,
+                                        self.__class__.__name__,
+                                        function.__name__,
+                                        info))
+                return function(self, *args, **kwargs)
+            else:
+                return function(self, *args, **kwargs)
+        return wrapped
+
+    def getMetaclass(use_metaclass, metaclass_func):
+        if use_metaclass:
+            return method_decorator_metaclass(metaclass_func)
+        else:
+            return type
+
+    # pylint:disable=unused-argument
+    class Phase(with_metaclass(getMetaclass(debug, log))):
+        """Base class for helper object that implements each phase of processing
+        """
+        __slots__ = ("parser", "tree", "__startTagCache", "__endTagCache")
+
+        def __init__(self, parser, tree):
+            self.parser = parser
+            self.tree = tree
+            self.__startTagCache = {}
+            self.__endTagCache = {}
+
+        def processEOF(self):
+            raise NotImplementedError
+
+        def processComment(self, token):
+            # For most phases the following is correct. Where it's not it will be
+            # overridden.
+            self.tree.insertComment(token, self.tree.openElements[-1])
+
+        def processDoctype(self, token):
+            self.parser.parseError("unexpected-doctype")
+
+        def processCharacters(self, token):
+            self.tree.insertText(token["data"])
+
+        def processSpaceCharacters(self, token):
+            self.tree.insertText(token["data"])
+
+        def processStartTag(self, token):
+            # Note the caching is done here rather than BoundMethodDispatcher as doing it there
+            # requires a circular reference to the Phase, and this ends up with a significant
+            # (CPython 2.7, 3.8) GC cost when parsing many short inputs
+            name = token["name"]
+            # In Py2, using `in` is quicker in general than try/except KeyError
+            # In Py3, `in` is quicker when there are few cache hits (typically short inputs)
+            if name in self.__startTagCache:
+                func = self.__startTagCache[name]
+            else:
+                func = self.__startTagCache[name] = self.startTagHandler[name]
+                # bound the cache size in case we get loads of unknown tags
+                while len(self.__startTagCache) > len(self.startTagHandler) * 1.1:
+                    # this makes the eviction policy random on Py < 3.7 and FIFO >= 3.7
+                    self.__startTagCache.pop(next(iter(self.__startTagCache)))
+            return func(token)
+
+        def startTagHtml(self, token):
+            if not self.parser.firstStartTag and token["name"] == "html":
+                self.parser.parseError("non-html-root")
+            # XXX Need a check here to see if the first start tag token emitted is
+            # this token... If it's not, invoke self.parser.parseError().
+            for attr, value in token["data"].items():
+                if attr not in self.tree.openElements[0].attributes:
+                    self.tree.openElements[0].attributes[attr] = value
+            self.parser.firstStartTag = False
+
+        def processEndTag(self, token):
+            # Note the caching is done here rather than BoundMethodDispatcher as doing it there
+            # requires a circular reference to the Phase, and this ends up with a significant
+            # (CPython 2.7, 3.8) GC cost when parsing many short inputs
+            name = token["name"]
+            # In Py2, using `in` is quicker in general than try/except KeyError
+            # In Py3, `in` is quicker when there are few cache hits (typically short inputs)
+            if name in self.__endTagCache:
+                func = self.__endTagCache[name]
+            else:
+                func = self.__endTagCache[name] = self.endTagHandler[name]
+                # bound the cache size in case we get loads of unknown tags
+                while len(self.__endTagCache) > len(self.endTagHandler) * 1.1:
+                    # this makes the eviction policy random on Py < 3.7 and FIFO >= 3.7
+                    self.__endTagCache.pop(next(iter(self.__endTagCache)))
+            return func(token)
+
+    class InitialPhase(Phase):
+        __slots__ = tuple()
+
+        def processSpaceCharacters(self, token):
+            pass
+
+        def processComment(self, token):
+            self.tree.insertComment(token, self.tree.document)
+
+        def processDoctype(self, token):
+            name = token["name"]
+            publicId = token["publicId"]
+            systemId = token["systemId"]
+            correct = token["correct"]
+
+            if (name != "html" or publicId is not None or
+                    systemId is not None and systemId != "about:legacy-compat"):
+                self.parser.parseError("unknown-doctype")
+
+            if publicId is None:
+                publicId = ""
+
+            self.tree.insertDoctype(token)
+
+            if publicId != "":
+                publicId = publicId.translate(asciiUpper2Lower)
+
+            if (not correct or token["name"] != "html" or
+                    publicId.startswith(
+                        ("+//silmaril//dtd html pro v0r11 19970101//",
+                         "-//advasoft ltd//dtd html 3.0 aswedit + extensions//",
+                         "-//as//dtd html 3.0 aswedit + extensions//",
+                         "-//ietf//dtd html 2.0 level 1//",
+                         "-//ietf//dtd html 2.0 level 2//",
+                         "-//ietf//dtd html 2.0 strict level 1//",
+                         "-//ietf//dtd html 2.0 strict level 2//",
+                         "-//ietf//dtd html 2.0 strict//",
+                         "-//ietf//dtd html 2.0//",
+                         "-//ietf//dtd html 2.1e//",
+                         "-//ietf//dtd html 3.0//",
+                         "-//ietf//dtd html 3.2 final//",
+                         "-//ietf//dtd html 3.2//",
+                         "-//ietf//dtd html 3//",
+                         "-//ietf//dtd html level 0//",
+                         "-//ietf//dtd html level 1//",
+                         "-//ietf//dtd html level 2//",
+                         "-//ietf//dtd html level 3//",
+                         "-//ietf//dtd html strict level 0//",
+                         "-//ietf//dtd html strict level 1//",
+                         "-//ietf//dtd html strict level 2//",
+                         "-//ietf//dtd html strict level 3//",
+                         "-//ietf//dtd html strict//",
+                         "-//ietf//dtd html//",
+                         "-//metrius//dtd metrius presentational//",
+                         "-//microsoft//dtd internet explorer 2.0 html strict//",
+                         "-//microsoft//dtd internet explorer 2.0 html//",
+                         "-//microsoft//dtd internet explorer 2.0 tables//",
+                         "-//microsoft//dtd internet explorer 3.0 html strict//",
+                         "-//microsoft//dtd internet explorer 3.0 html//",
+                         "-//microsoft//dtd internet explorer 3.0 tables//",
+                         "-//netscape comm. corp.//dtd html//",
+                         "-//netscape comm. corp.//dtd strict html//",
+                         "-//o'reilly and associates//dtd html 2.0//",
+                         "-//o'reilly and associates//dtd html extended 1.0//",
+                         "-//o'reilly and associates//dtd html extended relaxed 1.0//",
+                         "-//softquad software//dtd hotmetal pro 6.0::19990601::extensions to html 4.0//",
+                         "-//softquad//dtd hotmetal pro 4.0::19971010::extensions to html 4.0//",
+                         "-//spyglass//dtd html 2.0 extended//",
+                         "-//sq//dtd html 2.0 hotmetal + extensions//",
+                         "-//sun microsystems corp.//dtd hotjava html//",
+                         "-//sun microsystems corp.//dtd hotjava strict html//",
+                         "-//w3c//dtd html 3 1995-03-24//",
+                         "-//w3c//dtd html 3.2 draft//",
+                         "-//w3c//dtd html 3.2 final//",
+                         "-//w3c//dtd html 3.2//",
+                         "-//w3c//dtd html 3.2s draft//",
+                         "-//w3c//dtd html 4.0 frameset//",
+                         "-//w3c//dtd html 4.0 transitional//",
+                         "-//w3c//dtd html experimental 19960712//",
+                         "-//w3c//dtd html experimental 970421//",
+                         "-//w3c//dtd w3 html//",
+                         "-//w3o//dtd w3 html 3.0//",
+                         "-//webtechs//dtd mozilla html 2.0//",
+                         "-//webtechs//dtd mozilla html//")) or
+                    publicId in ("-//w3o//dtd w3 html strict 3.0//en//",
+                                 "-/w3c/dtd html 4.0 transitional/en",
+                                 "html") or
+                    publicId.startswith(
+                        ("-//w3c//dtd html 4.01 frameset//",
+                         "-//w3c//dtd html 4.01 transitional//")) and
+                    systemId is None or
+                    systemId and systemId.lower() == "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd"):
+                self.parser.compatMode = "quirks"
+            elif (publicId.startswith(
+                    ("-//w3c//dtd xhtml 1.0 frameset//",
+                     "-//w3c//dtd xhtml 1.0 transitional//")) or
+                  publicId.startswith(
+                      ("-//w3c//dtd html 4.01 frameset//",
+                       "-//w3c//dtd html 4.01 transitional//")) and
+                  systemId is not None):
+                self.parser.compatMode = "limited quirks"
+
+            self.parser.phase = self.parser.phases["beforeHtml"]
+
+        def anythingElse(self):
+            self.parser.compatMode = "quirks"
+            self.parser.phase = self.parser.phases["beforeHtml"]
+
+        def processCharacters(self, token):
+            self.parser.parseError("expected-doctype-but-got-chars")
+            self.anythingElse()
+            return token
+
+        def processStartTag(self, token):
+            self.parser.parseError("expected-doctype-but-got-start-tag",
+                                   {"name": token["name"]})
+            self.anythingElse()
+            return token
+
+        def processEndTag(self, token):
+            self.parser.parseError("expected-doctype-but-got-end-tag",
+                                   {"name": token["name"]})
+            self.anythingElse()
+            return token
+
+        def processEOF(self):
+            self.parser.parseError("expected-doctype-but-got-eof")
+            self.anythingElse()
+            return True
+
+    class BeforeHtmlPhase(Phase):
+        __slots__ = tuple()
+
+        # helper methods
+        def insertHtmlElement(self):
+            self.tree.insertRoot(impliedTagToken("html", "StartTag"))
+            self.parser.phase = self.parser.phases["beforeHead"]
+
+        # other
+        def processEOF(self):
+            self.insertHtmlElement()
+            return True
+
+        def processComment(self, token):
+            self.tree.insertComment(token, self.tree.document)
+
+        def processSpaceCharacters(self, token):
+            pass
+
+        def processCharacters(self, token):
+            self.insertHtmlElement()
+            return token
+
+        def processStartTag(self, token):
+            if token["name"] == "html":
+                self.parser.firstStartTag = True
+            self.insertHtmlElement()
+            return token
+
+        def processEndTag(self, token):
+            if token["name"] not in ("head", "body", "html", "br"):
+                self.parser.parseError("unexpected-end-tag-before-html",
+                                       {"name": token["name"]})
+            else:
+                self.insertHtmlElement()
+                return token
+
+    class BeforeHeadPhase(Phase):
+        __slots__ = tuple()
+
+        def processEOF(self):
+            self.startTagHead(impliedTagToken("head", "StartTag"))
+            return True
+
+        def processSpaceCharacters(self, token):
+            pass
+
+        def processCharacters(self, token):
+            self.startTagHead(impliedTagToken("head", "StartTag"))
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagHead(self, token):
+            self.tree.insertElement(token)
+            self.tree.headPointer = self.tree.openElements[-1]
+            self.parser.phase = self.parser.phases["inHead"]
+
+        def startTagOther(self, token):
+            self.startTagHead(impliedTagToken("head", "StartTag"))
+            return token
+
+        def endTagImplyHead(self, token):
+            self.startTagHead(impliedTagToken("head", "StartTag"))
+            return token
+
+        def endTagOther(self, token):
+            self.parser.parseError("end-tag-after-implied-root",
+                                   {"name": token["name"]})
+
+        startTagHandler = _utils.MethodDispatcher([
+            ("html", startTagHtml),
+            ("head", startTagHead)
+        ])
+        startTagHandler.default = startTagOther
+
+        endTagHandler = _utils.MethodDispatcher([
+            (("head", "body", "html", "br"), endTagImplyHead)
+        ])
+        endTagHandler.default = endTagOther
+
+    class InHeadPhase(Phase):
+        __slots__ = tuple()
+
+        # the real thing
+        def processEOF(self):
+            self.anythingElse()
+            return True
+
+        def processCharacters(self, token):
+            self.anythingElse()
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagHead(self, token):
+            self.parser.parseError("two-heads-are-not-better-than-one")
+
+        def startTagBaseLinkCommand(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+
+        def startTagMeta(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+
+            attributes = token["data"]
+            if self.parser.tokenizer.stream.charEncoding[1] == "tentative":
+                if "charset" in attributes:
+                    self.parser.tokenizer.stream.changeEncoding(attributes["charset"])
+                elif ("content" in attributes and
+                      "http-equiv" in attributes and
+                      attributes["http-equiv"].lower() == "content-type"):
+                    # Encoding it as UTF-8 here is a hack, as really we should pass
+                    # the abstract Unicode string, and just use the
+                    # ContentAttrParser on that, but using UTF-8 allows all chars
+                    # to be encoded and as a ASCII-superset works.
+                    data = _inputstream.EncodingBytes(attributes["content"].encode("utf-8"))
+                    parser = _inputstream.ContentAttrParser(data)
+                    codec = parser.parse()
+                    self.parser.tokenizer.stream.changeEncoding(codec)
+
+        def startTagTitle(self, token):
+            self.parser.parseRCDataRawtext(token, "RCDATA")
+
+        def startTagNoFramesStyle(self, token):
+            # Need to decide whether to implement the scripting-disabled case
+            self.parser.parseRCDataRawtext(token, "RAWTEXT")
+
+        def startTagNoscript(self, token):
+            if self.parser.scripting:
+                self.parser.parseRCDataRawtext(token, "RAWTEXT")
+            else:
+                self.tree.insertElement(token)
+                self.parser.phase = self.parser.phases["inHeadNoscript"]
+
+        def startTagScript(self, token):
+            self.tree.insertElement(token)
+            self.parser.tokenizer.state = self.parser.tokenizer.scriptDataState
+            self.parser.originalPhase = self.parser.phase
+            self.parser.phase = self.parser.phases["text"]
+
+        def startTagOther(self, token):
+            self.anythingElse()
+            return token
+
+        def endTagHead(self, token):
+            node = self.parser.tree.openElements.pop()
+            assert node.name == "head", "Expected head got %s" % node.name
+            self.parser.phase = self.parser.phases["afterHead"]
+
+        def endTagHtmlBodyBr(self, token):
+            self.anythingElse()
+            return token
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def anythingElse(self):
+            self.endTagHead(impliedTagToken("head"))
+
+        startTagHandler = _utils.MethodDispatcher([
+            ("html", startTagHtml),
+            ("title", startTagTitle),
+            (("noframes", "style"), startTagNoFramesStyle),
+            ("noscript", startTagNoscript),
+            ("script", startTagScript),
+            (("base", "basefont", "bgsound", "command", "link"),
+             startTagBaseLinkCommand),
+            ("meta", startTagMeta),
+            ("head", startTagHead)
+        ])
+        startTagHandler.default = startTagOther
+
+        endTagHandler = _utils.MethodDispatcher([
+            ("head", endTagHead),
+            (("br", "html", "body"), endTagHtmlBodyBr)
+        ])
+        endTagHandler.default = endTagOther
+
+    class InHeadNoscriptPhase(Phase):
+        __slots__ = tuple()
+
+        def processEOF(self):
+            self.parser.parseError("eof-in-head-noscript")
+            self.anythingElse()
+            return True
+
+        def processComment(self, token):
+            return self.parser.phases["inHead"].processComment(token)
+
+        def processCharacters(self, token):
+            self.parser.parseError("char-in-head-noscript")
+            self.anythingElse()
+            return token
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inHead"].processSpaceCharacters(token)
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagBaseLinkCommand(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagHeadNoscript(self, token):
+            self.parser.parseError("unexpected-start-tag", {"name": token["name"]})
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-inhead-noscript-tag", {"name": token["name"]})
+            self.anythingElse()
+            return token
+
+        def endTagNoscript(self, token):
+            node = self.parser.tree.openElements.pop()
+            assert node.name == "noscript", "Expected noscript got %s" % node.name
+            self.parser.phase = self.parser.phases["inHead"]
+
+        def endTagBr(self, token):
+            self.parser.parseError("unexpected-inhead-noscript-tag", {"name": token["name"]})
+            self.anythingElse()
+            return token
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def anythingElse(self):
+            # Caller must raise parse error first!
+            self.endTagNoscript(impliedTagToken("noscript"))
+
+        startTagHandler = _utils.MethodDispatcher([
+            ("html", startTagHtml),
+            (("basefont", "bgsound", "link", "meta", "noframes", "style"), startTagBaseLinkCommand),
+            (("head", "noscript"), startTagHeadNoscript),
+        ])
+        startTagHandler.default = startTagOther
+
+        endTagHandler = _utils.MethodDispatcher([
+            ("noscript", endTagNoscript),
+            ("br", endTagBr),
+        ])
+        endTagHandler.default = endTagOther
+
+    class AfterHeadPhase(Phase):
+        __slots__ = tuple()
+
+        def processEOF(self):
+            self.anythingElse()
+            return True
+
+        def processCharacters(self, token):
+            self.anythingElse()
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagBody(self, token):
+            self.parser.framesetOK = False
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inBody"]
+
+        def startTagFrameset(self, token):
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inFrameset"]
+
+        def startTagFromHead(self, token):
+            self.parser.parseError("unexpected-start-tag-out-of-my-head",
+                                   {"name": token["name"]})
+            self.tree.openElements.append(self.tree.headPointer)
+            self.parser.phases["inHead"].processStartTag(token)
+            for node in self.tree.openElements[::-1]:
+                if node.name == "head":
+                    self.tree.openElements.remove(node)
+                    break
+
+        def startTagHead(self, token):
+            self.parser.parseError("unexpected-start-tag", {"name": token["name"]})
+
+        def startTagOther(self, token):
+            self.anythingElse()
+            return token
+
+        def endTagHtmlBodyBr(self, token):
+            self.anythingElse()
+            return token
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def anythingElse(self):
+            self.tree.insertElement(impliedTagToken("body", "StartTag"))
+            self.parser.phase = self.parser.phases["inBody"]
+            self.parser.framesetOK = True
+
+        startTagHandler = _utils.MethodDispatcher([
+            ("html", startTagHtml),
+            ("body", startTagBody),
+            ("frameset", startTagFrameset),
+            (("base", "basefont", "bgsound", "link", "meta", "noframes", "script",
+              "style", "title"),
+             startTagFromHead),
+            ("head", startTagHead)
+        ])
+        startTagHandler.default = startTagOther
+        endTagHandler = _utils.MethodDispatcher([(("body", "html", "br"),
+                                                  endTagHtmlBodyBr)])
+        endTagHandler.default = endTagOther
+
+    class InBodyPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#parsing-main-inbody
+        # the really-really-really-very crazy mode
+        __slots__ = ("processSpaceCharacters",)
+
+        def __init__(self, *args, **kwargs):
+            super(InBodyPhase, self).__init__(*args, **kwargs)
+            # Set this to the default handler
+            self.processSpaceCharacters = self.processSpaceCharactersNonPre
+
+        def isMatchingFormattingElement(self, node1, node2):
+            return (node1.name == node2.name and
+                    node1.namespace == node2.namespace and
+                    node1.attributes == node2.attributes)
+
+        # helper
+        def addFormattingElement(self, token):
+            self.tree.insertElement(token)
+            element = self.tree.openElements[-1]
+
+            matchingElements = []
+            for node in self.tree.activeFormattingElements[::-1]:
+                if node is Marker:
+                    break
+                elif self.isMatchingFormattingElement(node, element):
+                    matchingElements.append(node)
+
+            assert len(matchingElements) <= 3
+            if len(matchingElements) == 3:
+                self.tree.activeFormattingElements.remove(matchingElements[-1])
+            self.tree.activeFormattingElements.append(element)
+
+        # the real deal
+        def processEOF(self):
+            allowed_elements = frozenset(("dd", "dt", "li", "p", "tbody", "td",
+                                          "tfoot", "th", "thead", "tr", "body",
+                                          "html"))
+            for node in self.tree.openElements[::-1]:
+                if node.name not in allowed_elements:
+                    self.parser.parseError("expected-closing-tag-but-got-eof")
+                    break
+            # Stop parsing
+
+        def processSpaceCharactersDropNewline(self, token):
+            # Sometimes (start of 
    , , and