From cf674d44d4d47a5cdc114c4df2800d4d13c8eea7 Mon Sep 17 00:00:00 2001 From: Polina Date: Thu, 2 Jul 2026 19:20:23 +0000 Subject: [PATCH] =?UTF-8?q?=D0=97=D0=B0=D0=B3=D1=80=D1=83=D0=B7=D0=B8?= =?UTF-8?q?=D1=82=D1=8C=20=D1=84=D0=B0=D0=B9=D0=BB=D1=8B=20=D0=B2=20=C2=AB?= =?UTF-8?q?venv/Lib/site-packages/pip/=5Fvendor/packaking=C2=BB?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../pip/_vendor/packaking/specifiers.py | 1068 +++++++++++++++++ .../pip/_vendor/packaking/tags.py | 651 ++++++++++ .../pip/_vendor/packaking/utils.py | 158 +++ .../pip/_vendor/packaking/version.py | 792 ++++++++++++ 4 files changed, 2669 insertions(+) create mode 100644 venv/Lib/site-packages/pip/_vendor/packaking/specifiers.py create mode 100644 venv/Lib/site-packages/pip/_vendor/packaking/tags.py create mode 100644 venv/Lib/site-packages/pip/_vendor/packaking/utils.py create mode 100644 venv/Lib/site-packages/pip/_vendor/packaking/version.py diff --git a/venv/Lib/site-packages/pip/_vendor/packaking/specifiers.py b/venv/Lib/site-packages/pip/_vendor/packaking/specifiers.py new file mode 100644 index 0000000..e4b9c44 --- /dev/null +++ b/venv/Lib/site-packages/pip/_vendor/packaking/specifiers.py @@ -0,0 +1,1068 @@ +# 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. +""" +.. testsetup:: + + from pip._vendor.packaging.specifiers import Specifier, SpecifierSet, InvalidSpecifier + from pip._vendor.packaging.version import Version +""" + +from __future__ import annotations + +import abc +import itertools +import re +from typing import Callable, Final, Iterable, Iterator, TypeVar, Union + +from .utils import canonicalize_version +from .version import InvalidVersion, Version + +UnparsedVersion = Union[Version, str] +UnparsedVersionVar = TypeVar("UnparsedVersionVar", bound=UnparsedVersion) +CallableOperator = Callable[[Version, str], bool] + + +def _coerce_version(version: UnparsedVersion) -> Version | None: + if not isinstance(version, Version): + try: + version = Version(version) + except InvalidVersion: + return None + return version + + +def _public_version(version: Version) -> Version: + return version.__replace__(local=None) + + +def _base_version(version: Version) -> Version: + return version.__replace__(pre=None, post=None, dev=None, local=None) + + +class InvalidSpecifier(ValueError): + """ + Raised when attempting to create a :class:`Specifier` with a specifier + string that is invalid. + + >>> Specifier("lolwat") + Traceback (most recent call last): + ... + packaging.specifiers.InvalidSpecifier: Invalid specifier: 'lolwat' + """ + + +class BaseSpecifier(metaclass=abc.ABCMeta): + __slots__ = () + __match_args__ = ("_str",) + + @property + def _str(self) -> str: + """Internal property for match_args""" + return str(self) + + @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. + + :param other: The other object to check against. + """ + + @property + @abc.abstractmethod + def prereleases(self) -> bool | None: + """Whether or not pre-releases as a whole are allowed. + + This can be set to either ``True`` or ``False`` to explicitly enable or disable + prereleases or it can be set to ``None`` (the default) to use default semantics. + """ + + @prereleases.setter # noqa: B027 + def prereleases(self, value: bool) -> None: + """Setter for :attr:`prereleases`. + + :param value: The value to set. + """ + + @abc.abstractmethod + def contains(self, item: str, prereleases: bool | None = None) -> bool: + """ + Determines if the given item is contained within this specifier. + """ + + @abc.abstractmethod + def filter( + self, iterable: Iterable[UnparsedVersionVar], prereleases: bool | None = None + ) -> Iterator[UnparsedVersionVar]: + """ + Takes an iterable of items and filters them so that only items which + are contained within this specifier are allowed in it. + """ + + +class Specifier(BaseSpecifier): + """This class abstracts handling of version specifiers. + + .. tip:: + + It is generally not required to instantiate this manually. You should instead + prefer to work with :class:`SpecifierSet` instead, which can parse + comma-separated version specifiers (which is what package metadata contains). + """ + + __slots__ = ("_prereleases", "_spec", "_spec_version") + + _operator_regex_str = r""" + (?P(~=|==|!=|<=|>=|<|>|===)) + """ + _version_regex_str = r""" + (?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;)]* # The arbitrary version can be just about anything, + # we match everything except for whitespace, a + # semi-colon for marker support, and a closing paren + # since versions can be enclosed in them. + ) + | + (?: + # 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 + + # You cannot use a wild card and a pre-release, post-release, a dev or + # local version together so group them with a | and make them optional. + (?: + \.\* # Wild card syntax of .* + | + (?: # pre release + [-_\.]? + (alpha|beta|preview|pre|a|b|c|rc) + [-_\.]? + [0-9]* + )? + (?: # post release + (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*) + )? + (?:[-_\.]?dev[-_\.]?[0-9]*)? # dev release + (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local + )? + ) + | + (?: + # 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 + [-_\.]? + (alpha|beta|preview|pre|a|b|c|rc) + [-_\.]? + [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", + } + + def __init__(self, spec: str = "", prereleases: bool | None = None) -> None: + """Initialize a Specifier instance. + + :param spec: + The string representation of a specifier which will be parsed and + normalized before use. + :param prereleases: + This tells the specifier if it should accept prerelease versions if + applicable or not. The default of ``None`` will autodetect it from the + given specifiers. + :raises InvalidSpecifier: + If the given specifier is invalid (i.e. bad syntax). + """ + match = self._regex.fullmatch(spec) + if not match: + raise InvalidSpecifier(f"Invalid specifier: {spec!r}") + + 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 + + # Specifier version cache + self._spec_version: tuple[str, Version] | None = None + + def _get_spec_version(self, version: str) -> Version | None: + """One element cache, as only one spec Version is needed per Specifier.""" + if self._spec_version is not None and self._spec_version[0] == version: + return self._spec_version[1] + + version_specifier = _coerce_version(version) + if version_specifier is None: + return None + + self._spec_version = (version, version_specifier) + return version_specifier + + def _require_spec_version(self, version: str) -> Version: + """Get spec version, asserting it's valid (not for === operator). + + This method should only be called for operators where version + strings are guaranteed to be valid PEP 440 versions (not ===). + """ + spec_version = self._get_spec_version(version) + assert spec_version is not None + return spec_version + + @property + def prereleases(self) -> bool | None: + # 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 + + # Only the "!=" operator does not imply prereleases when + # the version in the specifier is a prerelease. + operator, version_str = self._spec + if operator != "!=": + # The == specifier with trailing .* cannot include prereleases + # e.g. "==1.0a1.*" is not valid. + if operator == "==" and version_str.endswith(".*"): + return False + + # "===" can have arbitrary string versions, so we cannot parse + # those, we take prereleases as unknown (None) for those. + version = self._get_spec_version(version_str) + if version is None: + return None + + # For all other operators, use the check if spec Version + # object implies pre-releases. + if version.is_prerelease: + return True + + return False + + @prereleases.setter + def prereleases(self, value: bool | None) -> None: + self._prereleases = value + + @property + def operator(self) -> str: + """The operator of this specifier. + + >>> Specifier("==1.2.3").operator + '==' + """ + return self._spec[0] + + @property + def version(self) -> str: + """The version of this specifier. + + >>> Specifier("==1.2.3").version + '1.2.3' + """ + return self._spec[1] + + def __repr__(self) -> str: + """A representation of the Specifier that shows all internal state. + + >>> Specifier('>=1.0.0') + =1.0.0')> + >>> Specifier('>=1.0.0', prereleases=False) + =1.0.0', prereleases=False)> + >>> Specifier('>=1.0.0', prereleases=True) + =1.0.0', prereleases=True)> + """ + 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: + """A string representation of the Specifier that can be round-tripped. + + >>> str(Specifier('>=1.0.0')) + '>=1.0.0' + >>> str(Specifier('>=1.0.0', prereleases=False)) + '>=1.0.0' + """ + return "{}{}".format(*self._spec) + + @property + def _canonical_spec(self) -> tuple[str, str]: + operator, version = self._spec + if operator == "===" or version.endswith(".*"): + return operator, version + + spec_version = self._require_spec_version(version) + + canonical_version = canonicalize_version( + spec_version, strip_trailing_zero=(operator != "~=") + ) + + return operator, canonical_version + + def __hash__(self) -> int: + return hash(self._canonical_spec) + + def __eq__(self, other: object) -> bool: + """Whether or not the two Specifier-like objects are equal. + + :param other: The other object to check against. + + The value of :attr:`prereleases` is ignored. + + >>> Specifier("==1.2.3") == Specifier("== 1.2.3.0") + True + >>> (Specifier("==1.2.3", prereleases=False) == + ... Specifier("==1.2.3", prereleases=True)) + True + >>> Specifier("==1.2.3") == "==1.2.3" + True + >>> Specifier("==1.2.3") == Specifier("==1.2.4") + False + >>> Specifier("==1.2.3") == Specifier("~=1.2.3") + False + """ + 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 _compare_compatible(self, prospective: Version, 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 = _version_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 + ) + + def _compare_equal(self, prospective: Version, 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. + normalized_prospective = canonicalize_version( + _public_version(prospective), strip_trailing_zero=False + ) + # Get the normalized version string ignoring the trailing .* + normalized_spec = canonicalize_version(spec[:-2], strip_trailing_zero=False) + # Split the spec out by bangs and dots, and pretend that there is + # an implicit dot in between a release segment and a pre-release segment. + split_spec = _version_split(normalized_spec) + + # Split the prospective version out by bangs and dots, and pretend + # that there is an implicit dot in between a release segment and + # a pre-release segment. + split_prospective = _version_split(normalized_prospective) + + # 0-pad the prospective version before shortening it to get the correct + # shortened version. + padded_prospective, _ = _pad_version(split_prospective, split_spec) + + # 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 = padded_prospective[: len(split_spec)] + + return shortened_prospective == split_spec + else: + # Convert our spec string into a Version + spec_version = self._require_spec_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 = _public_version(prospective) + + return prospective == spec_version + + def _compare_not_equal(self, prospective: Version, spec: str) -> bool: + return not self._compare_equal(prospective, spec) + + def _compare_less_than_equal(self, prospective: Version, 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 _public_version(prospective) <= self._require_spec_version(spec) + + def _compare_greater_than_equal(self, prospective: Version, 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 _public_version(prospective) >= self._require_spec_version(spec) + + def _compare_less_than(self, prospective: Version, spec_str: str) -> bool: + # Convert our spec to a Version instance, since we'll want to work with + # it as a version. + spec = self._require_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 + and _base_version(prospective) == _base_version(spec) + ): + 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 + + def _compare_greater_than(self, prospective: Version, spec_str: str) -> bool: + # Convert our spec to a Version instance, since we'll want to work with + # it as a version. + spec = self._require_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 + and _base_version(prospective) == _base_version(spec) + ): + 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 and _base_version( + prospective + ) == _base_version(spec): + 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 | str, spec: str) -> bool: + return str(prospective).lower() == str(spec).lower() + + def __contains__(self, item: str | Version) -> bool: + """Return whether or not the item is contained in this specifier. + + :param item: The item to check for. + + This is used for the ``in`` operator and behaves the same as + :meth:`contains` with no ``prereleases`` argument passed. + + >>> "1.2.3" in Specifier(">=1.2.3") + True + >>> Version("1.2.3") in Specifier(">=1.2.3") + True + >>> "1.0.0" in Specifier(">=1.2.3") + False + >>> "1.3.0a1" in Specifier(">=1.2.3") + True + >>> "1.3.0a1" in Specifier(">=1.2.3", prereleases=True) + True + """ + return self.contains(item) + + def contains(self, item: UnparsedVersion, prereleases: bool | None = None) -> bool: + """Return whether or not the item is contained in this specifier. + + :param item: + The item to check for, which can be a version string or a + :class:`Version` instance. + :param prereleases: + Whether or not to match prereleases with this Specifier. If set to + ``None`` (the default), it will follow the recommendation from + :pep:`440` and match prereleases, as there are no other versions. + + >>> Specifier(">=1.2.3").contains("1.2.3") + True + >>> Specifier(">=1.2.3").contains(Version("1.2.3")) + True + >>> Specifier(">=1.2.3").contains("1.0.0") + False + >>> Specifier(">=1.2.3").contains("1.3.0a1") + True + >>> Specifier(">=1.2.3", prereleases=False).contains("1.3.0a1") + False + >>> Specifier(">=1.2.3").contains("1.3.0a1") + True + """ + + return bool(list(self.filter([item], prereleases=prereleases))) + + def filter( + self, iterable: Iterable[UnparsedVersionVar], prereleases: bool | None = None + ) -> Iterator[UnparsedVersionVar]: + """Filter items in the given iterable, that match the specifier. + + :param iterable: + An iterable that can contain version strings and :class:`Version` instances. + The items in the iterable will be filtered according to the specifier. + :param prereleases: + Whether or not to allow prereleases in the returned iterator. If set to + ``None`` (the default), it will follow the recommendation from :pep:`440` + and match prereleases if there are no other versions. + + >>> list(Specifier(">=1.2.3").filter(["1.2", "1.3", "1.5a1"])) + ['1.3'] + >>> list(Specifier(">=1.2.3").filter(["1.2", "1.2.3", "1.3", Version("1.4")])) + ['1.2.3', '1.3', ] + >>> list(Specifier(">=1.2.3").filter(["1.2", "1.5a1"])) + ['1.5a1'] + >>> list(Specifier(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True)) + ['1.3', '1.5a1'] + >>> list(Specifier(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"])) + ['1.3', '1.5a1'] + """ + prereleases_versions = [] + found_non_prereleases = False + + # Determine if to include prereleases by default + include_prereleases = ( + prereleases if prereleases is not None else self.prereleases + ) + + # Get the matching operator + operator_callable = self._get_operator(self.operator) + + # Filter versions + for version in iterable: + parsed_version = _coerce_version(version) + if parsed_version is None: + # === operator can match arbitrary (non-version) strings + if self.operator == "===" and self._compare_arbitrary( + version, self.version + ): + yield version + elif operator_callable(parsed_version, self.version): + # If it's not a prerelease or prereleases are allowed, yield it directly + if not parsed_version.is_prerelease or include_prereleases: + found_non_prereleases = True + yield version + # Otherwise collect prereleases for potential later use + elif prereleases is None and self._prereleases is not False: + prereleases_versions.append(version) + + # If no non-prereleases were found and prereleases weren't + # explicitly forbidden, yield the collected prereleases + if ( + not found_non_prereleases + and prereleases is None + and self._prereleases is not False + ): + yield from prereleases_versions + + +_prefix_regex = re.compile(r"([0-9]+)((?:a|b|c|rc)[0-9]+)") + + +def _version_split(version: str) -> list[str]: + """Split version into components. + + The split components are intended for version comparison. The logic does + not attempt to retain the original version string, so joining the + components back with :func:`_version_join` may not produce the original + version string. + """ + result: list[str] = [] + + epoch, _, rest = version.rpartition("!") + result.append(epoch or "0") + + for item in rest.split("."): + match = _prefix_regex.fullmatch(item) + if match: + result.extend(match.groups()) + else: + result.append(item) + return result + + +def _version_join(components: list[str]) -> str: + """Join split version components into a version string. + + This function assumes the input came from :func:`_version_split`, where the + first component must be the epoch (either empty or numeric), and all other + components numeric. + """ + epoch, *rest = components + return f"{epoch}!{'.'.join(rest)}" + + +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.from_iterable(left_split)), + list(itertools.chain.from_iterable(right_split)), + ) + + +class SpecifierSet(BaseSpecifier): + """This class abstracts handling of a set of version specifiers. + + It can be passed a single specifier (``>=3.0``), a comma-separated list of + specifiers (``>=3.0,!=3.1``), or no specifier at all. + """ + + __slots__ = ("_prereleases", "_specs") + + def __init__( + self, + specifiers: str | Iterable[Specifier] = "", + prereleases: bool | None = None, + ) -> None: + """Initialize a SpecifierSet instance. + + :param specifiers: + The string representation of a specifier or a comma-separated list of + specifiers which will be parsed and normalized before use. + May also be an iterable of ``Specifier`` instances, which will be used + as is. + :param prereleases: + This tells the SpecifierSet if it should accept prerelease versions if + applicable or not. The default of ``None`` will autodetect it from the + given specifiers. + + :raises InvalidSpecifier: + If the given ``specifiers`` are not parseable than this exception will be + raised. + """ + + if isinstance(specifiers, str): + # Split on `,` to break each individual specifier into its own item, and + # strip each item to remove leading/trailing whitespace. + split_specifiers = [s.strip() for s in specifiers.split(",") if s.strip()] + + # Make each individual specifier a Specifier and save in a frozen set + # for later. + self._specs = frozenset(map(Specifier, split_specifiers)) + else: + # Save the supplied specifiers in a frozen set. + self._specs = frozenset(specifiers) + + # Store our prereleases value so we can use it later to determine if + # we accept prereleases or not. + self._prereleases = prereleases + + @property + def prereleases(self) -> bool | None: + # 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. + if any(s.prereleases for s in self._specs): + return True + + return None + + @prereleases.setter + def prereleases(self, value: bool | None) -> None: + self._prereleases = value + + def __repr__(self) -> str: + """A representation of the specifier set that shows all internal state. + + Note that the ordering of the individual specifiers within the set may not + match the input string. + + >>> SpecifierSet('>=1.0.0,!=2.0.0') + =1.0.0')> + >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=False) + =1.0.0', prereleases=False)> + >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=True) + =1.0.0', prereleases=True)> + """ + pre = ( + f", prereleases={self.prereleases!r}" + if self._prereleases is not None + else "" + ) + + return f"" + + def __str__(self) -> str: + """A string representation of the specifier set that can be round-tripped. + + Note that the ordering of the individual specifiers within the set may not + match the input string. + + >>> str(SpecifierSet(">=1.0.0,!=1.0.1")) + '!=1.0.1,>=1.0.0' + >>> str(SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False)) + '!=1.0.1,>=1.0.0' + """ + return ",".join(sorted(str(s) for s in self._specs)) + + def __hash__(self) -> int: + return hash(self._specs) + + def __and__(self, other: SpecifierSet | str) -> SpecifierSet: + """Return a SpecifierSet which is a combination of the two sets. + + :param other: The other object to combine with. + + >>> SpecifierSet(">=1.0.0,!=1.0.1") & '<=2.0.0,!=2.0.1' + =1.0.0')> + >>> SpecifierSet(">=1.0.0,!=1.0.1") & SpecifierSet('<=2.0.0,!=2.0.1') + =1.0.0')> + """ + 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 + ) or 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: + """Whether or not the two SpecifierSet-like objects are equal. + + :param other: The other object to check against. + + The value of :attr:`prereleases` is ignored. + + >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.1") + True + >>> (SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False) == + ... SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True)) + True + >>> SpecifierSet(">=1.0.0,!=1.0.1") == ">=1.0.0,!=1.0.1" + True + >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0") + False + >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.2") + False + """ + if isinstance(other, (str, Specifier)): + other = SpecifierSet(str(other)) + elif not isinstance(other, SpecifierSet): + return NotImplemented + + return self._specs == other._specs + + def __len__(self) -> int: + """Returns the number of specifiers in this specifier set.""" + return len(self._specs) + + def __iter__(self) -> Iterator[Specifier]: + """ + Returns an iterator over all the underlying :class:`Specifier` instances + in this specifier set. + + >>> sorted(SpecifierSet(">=1.0.0,!=1.0.1"), key=str) + [, =1.0.0')>] + """ + return iter(self._specs) + + def __contains__(self, item: UnparsedVersion) -> bool: + """Return whether or not the item is contained in this specifier. + + :param item: The item to check for. + + This is used for the ``in`` operator and behaves the same as + :meth:`contains` with no ``prereleases`` argument passed. + + >>> "1.2.3" in SpecifierSet(">=1.0.0,!=1.0.1") + True + >>> Version("1.2.3") in SpecifierSet(">=1.0.0,!=1.0.1") + True + >>> "1.0.1" in SpecifierSet(">=1.0.0,!=1.0.1") + False + >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1") + True + >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True) + True + """ + return self.contains(item) + + def contains( + self, + item: UnparsedVersion, + prereleases: bool | None = None, + installed: bool | None = None, + ) -> bool: + """Return whether or not the item is contained in this SpecifierSet. + + :param item: + The item to check for, which can be a version string or a + :class:`Version` instance. + :param prereleases: + Whether or not to match prereleases with this SpecifierSet. If set to + ``None`` (the default), it will follow the recommendation from :pep:`440` + and match prereleases, as there are no other versions. + :param installed: + Whether or not the item is installed. If set to ``True``, it will + accept prerelease versions even if the specifier does not allow them. + + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.2.3") + True + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains(Version("1.2.3")) + True + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.0.1") + False + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1") + True + >>> SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False).contains("1.3.0a1") + False + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1", prereleases=True) + True + """ + version = _coerce_version(item) + + if version is not None and installed and version.is_prerelease: + prereleases = True + + check_item = item if version is None else version + return bool(list(self.filter([check_item], prereleases=prereleases))) + + def filter( + self, iterable: Iterable[UnparsedVersionVar], prereleases: bool | None = None + ) -> Iterator[UnparsedVersionVar]: + """Filter items in the given iterable, that match the specifiers in this set. + + :param iterable: + An iterable that can contain version strings and :class:`Version` instances. + The items in the iterable will be filtered according to the specifier. + :param prereleases: + Whether or not to allow prereleases in the returned iterator. If set to + ``None`` (the default), it will follow the recommendation from :pep:`440` + and match prereleases if there are no other versions. + + >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", "1.5a1"])) + ['1.3'] + >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", Version("1.4")])) + ['1.3', ] + >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.5a1"])) + ['1.5a1'] + >>> list(SpecifierSet(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True)) + ['1.3', '1.5a1'] + >>> list(SpecifierSet(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"])) + ['1.3', '1.5a1'] + + An "empty" SpecifierSet will filter items based on the presence of prerelease + versions in the set. + + >>> list(SpecifierSet("").filter(["1.3", "1.5a1"])) + ['1.3'] + >>> list(SpecifierSet("").filter(["1.5a1"])) + ['1.5a1'] + >>> list(SpecifierSet("", prereleases=True).filter(["1.3", "1.5a1"])) + ['1.3', '1.5a1'] + >>> list(SpecifierSet("").filter(["1.3", "1.5a1"], prereleases=True)) + ['1.3', '1.5a1'] + """ + # 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 and self.prereleases is not 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: + # When prereleases is None, we need to let all versions through + # the individual filters, then decide about prereleases at the end + # based on whether any non-prereleases matched ALL specs. + for spec in self._specs: + iterable = spec.filter( + iterable, prereleases=True if prereleases is None else prereleases + ) + + if prereleases is not None: + # If we have a forced prereleases value, + # we can immediately return the iterator. + return iter(iterable) + else: + # Handle empty SpecifierSet cases where prereleases is not None. + if prereleases is True: + return iter(iterable) + + if prereleases is False: + return ( + item + for item in iterable + if (version := _coerce_version(item)) is None + or not version.is_prerelease + ) + + # Finally if prereleases is None, apply PEP 440 logic: + # exclude prereleases unless there are no final releases that matched. + filtered_items: list[UnparsedVersionVar] = [] + found_prereleases: list[UnparsedVersionVar] = [] + found_final_release = False + + for item in iterable: + parsed_version = _coerce_version(item) + # Arbitrary strings are always included as it is not + # possible to determine if they are prereleases, + # and they have already passed all specifiers. + if parsed_version is None: + filtered_items.append(item) + found_prereleases.append(item) + elif parsed_version.is_prerelease: + found_prereleases.append(item) + else: + filtered_items.append(item) + found_final_release = True + + return iter(filtered_items if found_final_release else found_prereleases) diff --git a/venv/Lib/site-packages/pip/_vendor/packaking/tags.py b/venv/Lib/site-packages/pip/_vendor/packaking/tags.py new file mode 100644 index 0000000..5ef27c8 --- /dev/null +++ b/venv/Lib/site-packages/pip/_vendor/packaking/tags.py @@ -0,0 +1,651 @@ +# 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 __future__ import annotations + +import logging +import platform +import re +import struct +import subprocess +import sys +import sysconfig +from importlib.machinery import EXTENSION_SUFFIXES +from typing import ( + Any, + Iterable, + Iterator, + Sequence, + Tuple, + cast, +) + +from . import _manylinux, _musllinux + +logger = logging.getLogger(__name__) + +PythonVersion = Sequence[int] +AppleVersion = Tuple[int, int] + +INTERPRETER_SHORT_NAMES: dict[str, str] = { + "python": "py", # Generic. + "cpython": "cp", + "pypy": "pp", + "ironpython": "ip", + "jython": "jy", +} + + +_32_BIT_INTERPRETER = struct.calcsize("P") == 4 + + +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__ = ["_abi", "_hash", "_interpreter", "_platform"] + + 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 __setstate__(self, state: tuple[None, dict[str, Any]]) -> None: + # The cached _hash is wrong when unpickling. + _, slots = state + for k, v in slots.items(): + setattr(self, k, v) + self._hash = hash((self._interpreter, self._abi, self._platform)) + + +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) -> int | str | None: + value: int | str | None = 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("-", "_").replace(" ", "_") + + +def _is_threaded_cpython(abis: list[str]) -> bool: + """ + Determine if the ABI corresponds to a threaded (`--disable-gil`) build. + + The threaded builds are indicated by a "t" in the abiflags. + """ + if len(abis) == 0: + return False + # expect e.g., cp313 + m = re.match(r"cp\d+(.*)", abis[0]) + if not m: + return False + abiflags = m.group(1) + return "t" in abiflags + + +def _abi3_applies(python_version: PythonVersion, threading: bool) -> bool: + """ + Determine if the Python version supports abi3. + + PEP 384 was first implemented in Python 3.2. The threaded (`--disable-gil`) + builds do not support abi3. + """ + return len(python_version) > 1 and tuple(python_version) >= (3, 2) and not threading + + +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]) + threading = 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, 13) and _get_config_var("Py_GIL_DISABLED", warn): + threading = "t" + 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}{threading}") + abis.insert(0, f"cp{version}{threading}{debug}{pymalloc}{ucs4}") + return abis + + +def cpython_tags( + python_version: PythonVersion | None = None, + abis: Iterable[str] | None = None, + platforms: Iterable[str] | None = 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: + abis = _cpython_abis(python_version, warn) if len(python_version) > 1 else [] + abis = list(abis) + # 'abi3' and 'none' are explicitly handled later. + for explicit_abi in ("abi3", "none"): + try: + abis.remove(explicit_abi) + except ValueError: # noqa: PERF203 + pass + + platforms = list(platforms or platform_tags()) + for abi in abis: + for platform_ in platforms: + yield Tag(interpreter, abi, platform_) + + threading = _is_threaded_cpython(abis) + use_abi3 = _abi3_applies(python_version, threading) + if use_abi3: + yield from (Tag(interpreter, "abi3", platform_) for platform_ in platforms) + yield from (Tag(interpreter, "none", platform_) for platform_ in platforms) + + if use_abi3: + for minor_version in range(python_version[1] - 1, 1, -1): + for platform_ in platforms: + version = _version_nodot((python_version[0], minor_version)) + interpreter = f"cp{version}" + yield Tag(interpreter, "abi3", platform_) + + +def _generic_abi() -> list[str]: + """ + Return the ABI tag based on EXT_SUFFIX. + """ + # The following are examples of `EXT_SUFFIX`. + # We want to keep the parts which are related to the ABI and remove the + # parts which are related to the platform: + # - linux: '.cpython-310-x86_64-linux-gnu.so' => cp310 + # - mac: '.cpython-310-darwin.so' => cp310 + # - win: '.cp310-win_amd64.pyd' => cp310 + # - win: '.pyd' => cp37 (uses _cpython_abis()) + # - pypy: '.pypy38-pp73-x86_64-linux-gnu.so' => pypy38_pp73 + # - graalpy: '.graalpy-38-native-x86_64-darwin.dylib' + # => graalpy_38_native + + ext_suffix = _get_config_var("EXT_SUFFIX", warn=True) + if not isinstance(ext_suffix, str) or ext_suffix[0] != ".": + raise SystemError("invalid sysconfig.get_config_var('EXT_SUFFIX')") + parts = ext_suffix.split(".") + if len(parts) < 3: + # CPython3.7 and earlier uses ".pyd" on Windows. + return _cpython_abis(sys.version_info[:2]) + soabi = parts[1] + if soabi.startswith("cpython"): + # non-windows + abi = "cp" + soabi.split("-")[1] + elif soabi.startswith("cp"): + # windows + abi = soabi.split("-")[0] + elif soabi.startswith("pypy"): + abi = "-".join(soabi.split("-")[:2]) + elif soabi.startswith("graalpy"): + abi = "-".join(soabi.split("-")[:3]) + elif soabi: + # pyston, ironpython, others? + abi = soabi + else: + return [] + return [_normalize_string(abi)] + + +def generic_tags( + interpreter: str | None = None, + abis: Iterable[str] | None = None, + platforms: Iterable[str] | None = 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 = f"{interp_name}{interp_version}" + abis = _generic_abi() if abis is None else list(abis) + platforms = list(platforms or platform_tags()) + 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: PythonVersion | None = None, + interpreter: str | None = None, + platforms: Iterable[str] | None = 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: AppleVersion, 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: AppleVersion | None = None, arch: str | None = 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("AppleVersion", tuple(map(int, version_str.split(".")[:2]))) + if version == (10, 16): + # When built against an older macOS SDK, Python will report macOS 10.16 + # instead of the real version. + version_str = subprocess.run( + [ + sys.executable, + "-sS", + "-c", + "import platform; print(platform.mac_ver()[0])", + ], + check=True, + env={"SYSTEM_VERSION_COMPAT": "0"}, + stdout=subprocess.PIPE, + text=True, + ).stdout + version = cast("AppleVersion", tuple(map(int, version_str.split(".")[:2]))) + + if arch is None: + arch = _mac_arch(cpu_arch) + + if (10, 0) <= 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. + major_version = 10 + for minor_version in range(version[1], -1, -1): + compat_version = major_version, minor_version + binary_formats = _mac_binary_formats(compat_version, arch) + for binary_format in binary_formats: + yield f"macosx_{major_version}_{minor_version}_{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. + minor_version = 0 + for major_version in range(version[0], 10, -1): + compat_version = major_version, minor_version + binary_formats = _mac_binary_formats(compat_version, arch) + for binary_format in binary_formats: + yield f"macosx_{major_version}_{minor_version}_{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. + major_version = 10 + if arch == "x86_64": + for minor_version in range(16, 3, -1): + compat_version = major_version, minor_version + binary_formats = _mac_binary_formats(compat_version, arch) + for binary_format in binary_formats: + yield f"macosx_{major_version}_{minor_version}_{binary_format}" + else: + for minor_version in range(16, 3, -1): + compat_version = major_version, minor_version + binary_format = "universal2" + yield f"macosx_{major_version}_{minor_version}_{binary_format}" + + +def ios_platforms( + version: AppleVersion | None = None, multiarch: str | None = None +) -> Iterator[str]: + """ + Yields the platform tags for an iOS system. + + :param version: A two-item tuple specifying the iOS version to generate + platform tags for. Defaults to the current iOS version. + :param multiarch: The CPU architecture+ABI to generate platform tags for - + (the value used by `sys.implementation._multiarch` e.g., + `arm64_iphoneos` or `x84_64_iphonesimulator`). Defaults to the current + multiarch value. + """ + if version is None: + # if iOS is the current platform, ios_ver *must* be defined. However, + # it won't exist for CPython versions before 3.13, which causes a mypy + # error. + _, release, _, _ = platform.ios_ver() # type: ignore[attr-defined, unused-ignore] + version = cast("AppleVersion", tuple(map(int, release.split(".")[:2]))) + + if multiarch is None: + multiarch = sys.implementation._multiarch + multiarch = multiarch.replace("-", "_") + + ios_platform_template = "ios_{major}_{minor}_{multiarch}" + + # Consider any iOS major.minor version from the version requested, down to + # 12.0. 12.0 is the first iOS version that is known to have enough features + # to support CPython. Consider every possible minor release up to X.9. There + # highest the minor has ever gone is 8 (14.8 and 15.8) but having some extra + # candidates that won't ever match doesn't really hurt, and it saves us from + # having to keep an explicit list of known iOS versions in the code. Return + # the results descending order of version number. + + # If the requested major version is less than 12, there won't be any matches. + if version[0] < 12: + return + + # Consider the actual X.Y version that was requested. + yield ios_platform_template.format( + major=version[0], minor=version[1], multiarch=multiarch + ) + + # Consider every minor version from X.0 to the minor version prior to the + # version requested by the platform. + for minor in range(version[1] - 1, -1, -1): + yield ios_platform_template.format( + major=version[0], minor=minor, multiarch=multiarch + ) + + for major in range(version[0] - 1, 11, -1): + for minor in range(9, -1, -1): + yield ios_platform_template.format( + major=major, minor=minor, multiarch=multiarch + ) + + +def android_platforms( + api_level: int | None = None, abi: str | None = None +) -> Iterator[str]: + """ + Yields the :attr:`~Tag.platform` tags for Android. If this function is invoked on + non-Android platforms, the ``api_level`` and ``abi`` arguments are required. + + :param int api_level: The maximum `API level + `__ to return. Defaults + to the current system's version, as returned by ``platform.android_ver``. + :param str abi: The `Android ABI `__, + e.g. ``arm64_v8a``. Defaults to the current system's ABI , as returned by + ``sysconfig.get_platform``. Hyphens and periods will be replaced with + underscores. + """ + if platform.system() != "Android" and (api_level is None or abi is None): + raise TypeError( + "on non-Android platforms, the api_level and abi arguments are required" + ) + + if api_level is None: + # Python 3.13 was the first version to return platform.system() == "Android", + # and also the first version to define platform.android_ver(). + api_level = platform.android_ver().api_level # type: ignore[attr-defined] + + if abi is None: + abi = sysconfig.get_platform().split("-")[-1] + abi = _normalize_string(abi) + + # 16 is the minimum API level known to have enough features to support CPython + # without major patching. Yield every API level from the maximum down to the + # minimum, inclusive. + min_api_level = 16 + for ver in range(api_level, min_api_level - 1, -1): + yield f"android_{ver}_{abi}" + + +def _linux_platforms(is_32bit: bool = _32_BIT_INTERPRETER) -> Iterator[str]: + linux = _normalize_string(sysconfig.get_platform()) + if not linux.startswith("linux_"): + # we should never be here, just yield the sysconfig one and return + yield linux + return + if is_32bit: + if linux == "linux_x86_64": + linux = "linux_i686" + elif linux == "linux_aarch64": + linux = "linux_armv8l" + _, arch = linux.split("_", 1) + archs = {"armv8l": ["armv8l", "armv7l"]}.get(arch, [arch]) + yield from _manylinux.platform_tags(archs) + yield from _musllinux.platform_tags(archs) + for arch in archs: + yield f"linux_{arch}" + + +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() == "iOS": + return ios_platforms() + elif platform.system() == "Android": + return android_platforms() + elif platform.system() == "Linux": + return _linux_platforms() + else: + return _generic_platforms() + + +def interpreter_name() -> str: + """ + Returns the name of the running interpreter. + + Some implementations have a reserved, two-letter abbreviation which will + be returned when appropriate. + """ + 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) + return str(version) if version else _version_nodot(sys.version_info[:2]) + + +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": + interp = "pp3" + elif interp_name == "cp": + interp = "cp" + interpreter_version(warn=warn) + else: + interp = None + yield from compatible_tags(interpreter=interp) diff --git a/venv/Lib/site-packages/pip/_vendor/packaking/utils.py b/venv/Lib/site-packages/pip/_vendor/packaking/utils.py new file mode 100644 index 0000000..c41c813 --- /dev/null +++ b/venv/Lib/site-packages/pip/_vendor/packaking/utils.py @@ -0,0 +1,158 @@ +# 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 __future__ import annotations + +import re +from typing import NewType, Tuple, Union, cast + +from .tags import Tag, parse_tag +from .version import InvalidVersion, Version, _TrimmedRelease + +BuildTag = Union[Tuple[()], Tuple[int, str]] +NormalizedName = NewType("NormalizedName", str) + + +class InvalidName(ValueError): + """ + An invalid distribution name; users should refer to the packaging user guide. + """ + + +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. + """ + + +# Core metadata spec for `Name` +_validate_regex = re.compile(r"[A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9]", re.IGNORECASE) +_normalized_regex = re.compile(r"[a-z0-9]|[a-z0-9]([a-z0-9-](?!--))*[a-z0-9]") +# PEP 427: The build number must start with a digit. +_build_tag_regex = re.compile(r"(\d+)(.*)") + + +def canonicalize_name(name: str, *, validate: bool = False) -> NormalizedName: + if validate and not _validate_regex.fullmatch(name): + raise InvalidName(f"name is invalid: {name!r}") + # Ensure all ``.`` and ``_`` are ``-`` + # Emulates ``re.sub(r"[-_.]+", "-", name).lower()`` from PEP 503 + # Much faster than re, and even faster than str.translate + value = name.lower().replace("_", "-").replace(".", "-") + # Condense repeats (faster than regex) + while "--" in value: + value = value.replace("--", "-") + return cast("NormalizedName", value) + + +def is_normalized_name(name: str) -> bool: + return _normalized_regex.fullmatch(name) is not None + + +def canonicalize_version( + version: Version | str, *, strip_trailing_zero: bool = True +) -> str: + """ + Return a canonical form of a version as a string. + + >>> canonicalize_version('1.0.1') + '1.0.1' + + Per PEP 625, versions may have multiple canonical forms, differing + only by trailing zeros. + + >>> canonicalize_version('1.0.0') + '1' + >>> canonicalize_version('1.0.0', strip_trailing_zero=False) + '1.0.0' + + Invalid versions are returned unaltered. + + >>> canonicalize_version('foo bar baz') + 'foo bar baz' + """ + if isinstance(version, str): + try: + version = Version(version) + except InvalidVersion: + return str(version) + return str(_TrimmedRelease(version) if strip_trailing_zero else version) + + +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!r}" + ) + + filename = filename[:-4] + dashes = filename.count("-") + if dashes not in (4, 5): + raise InvalidWheelFilename( + f"Invalid wheel filename (wrong number of parts): {filename!r}" + ) + + 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!r}") + name = canonicalize_name(name_part) + + try: + version = Version(parts[1]) + except InvalidVersion as e: + raise InvalidWheelFilename( + f"Invalid wheel filename (invalid version): {filename!r}" + ) from e + + 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!r}" + ) + 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!r}" + ) + + # 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!r}") + + name = canonicalize_name(name_part) + + try: + version = Version(version_part) + except InvalidVersion as e: + raise InvalidSdistFilename( + f"Invalid sdist filename (invalid version): {filename!r}" + ) from e + + return (name, version) diff --git a/venv/Lib/site-packages/pip/_vendor/packaking/version.py b/venv/Lib/site-packages/pip/_vendor/packaking/version.py new file mode 100644 index 0000000..d250a26 --- /dev/null +++ b/venv/Lib/site-packages/pip/_vendor/packaking/version.py @@ -0,0 +1,792 @@ +# 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. +""" +.. testsetup:: + + from pip._vendor.packaging.version import parse, Version +""" + +from __future__ import annotations + +import re +import sys +import typing +from typing import ( + Any, + Callable, + Literal, + NamedTuple, + SupportsInt, + Tuple, + TypedDict, + Union, +) + +from ._structures import Infinity, InfinityType, NegativeInfinity, NegativeInfinityType + +if typing.TYPE_CHECKING: + from typing_extensions import Self, Unpack + +if sys.version_info >= (3, 13): # pragma: no cover + from warnings import deprecated as _deprecated +elif typing.TYPE_CHECKING: + from typing_extensions import deprecated as _deprecated +else: # pragma: no cover + import functools + import warnings + + def _deprecated(message: str) -> object: + def decorator(func: object) -> object: + @functools.wraps(func) + def wrapper(*args: object, **kwargs: object) -> object: + warnings.warn( + message, + category=DeprecationWarning, + stacklevel=2, + ) + return func(*args, **kwargs) + + return wrapper + + return decorator + + +_LETTER_NORMALIZATION = { + "alpha": "a", + "beta": "b", + "c": "rc", + "pre": "rc", + "preview": "rc", + "rev": "post", + "r": "post", +} + +__all__ = ["VERSION_PATTERN", "InvalidVersion", "Version", "parse"] + +LocalType = Tuple[Union[int, str], ...] + +CmpPrePostDevType = Union[InfinityType, NegativeInfinityType, Tuple[str, int]] +CmpLocalType = Union[ + NegativeInfinityType, + Tuple[Union[Tuple[int, str], Tuple[NegativeInfinityType, Union[int, str]]], ...], +] +CmpKey = Tuple[ + int, + Tuple[int, ...], + CmpPrePostDevType, + CmpPrePostDevType, + CmpPrePostDevType, + CmpLocalType, +] +VersionComparisonMethod = Callable[[CmpKey, CmpKey], bool] + + +class _VersionReplace(TypedDict, total=False): + epoch: int | None + release: tuple[int, ...] | None + pre: tuple[Literal["a", "b", "rc"], int] | None + post: int | None + dev: int | None + local: str | None + + +def parse(version: str) -> Version: + """Parse the given version string. + + >>> parse('1.0.dev1') + + + :param version: The version string to parse. + :raises InvalidVersion: When the version string is not a valid version. + """ + return Version(version) + + +class InvalidVersion(ValueError): + """Raised when a version string is not a valid version. + + >>> Version("invalid") + Traceback (most recent call last): + ... + packaging.version.InvalidVersion: Invalid version: 'invalid' + """ + + +class _BaseVersion: + __slots__ = () + + # This can also be a normal member (see the packaging_legacy package); + # we are just requiring it to be readable. Actually defining a property + # has runtime effect on subclasses, so it's typing only. + if typing.TYPE_CHECKING: + + @property + def _key(self) -> tuple[Any, ...]: ... + + 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 + + +# Deliberately not anchored to the start and end of the string, to make it +# easier for 3rd party code to reuse + +# Note that ++ doesn't behave identically on CPython and PyPy, so not using it here +_VERSION_PATTERN = r""" + v?+ # optional leading v + (?: + (?:(?P[0-9]+)!)?+ # epoch + (?P[0-9]+(?:\.[0-9]+)*+) # release segment + (?P
                                          # pre-release
+            [._-]?+
+            (?Palpha|a|beta|b|preview|pre|c|rc)
+            [._-]?+
+            (?P[0-9]+)?
+        )?+
+        (?P                                         # post release
+            (?:-(?P[0-9]+))
+            |
+            (?:
+                [._-]?
+                (?Ppost|rev|r)
+                [._-]?
+                (?P[0-9]+)?
+            )
+        )?+
+        (?P                                          # dev release
+            [._-]?+
+            (?Pdev)
+            [._-]?+
+            (?P[0-9]+)?
+        )?+
+    )
+    (?:\+
+        (?P                                        # local version
+            [a-z0-9]+
+            (?:[._-][a-z0-9]+)*+
+        )
+    )?+
+"""
+
+_VERSION_PATTERN_OLD = _VERSION_PATTERN.replace("*+", "*").replace("?+", "?")
+
+# Possessive qualifiers were added in Python 3.11.
+# CPython 3.11.0-3.11.4 had a bug: https://github.com/python/cpython/pull/107795
+# Older PyPy also had a bug.
+VERSION_PATTERN = (
+    _VERSION_PATTERN_OLD
+    if (sys.implementation.name == "cpython" and sys.version_info < (3, 11, 5))
+    or (sys.implementation.name == "pypy" and sys.version_info < (3, 11, 13))
+    or sys.version_info < (3, 11)
+    else _VERSION_PATTERN
+)
+"""
+A string containing the regular expression used to match a valid version.
+
+The pattern is not anchored at either end, and is intended for embedding in larger
+expressions (for example, matching a version number as part of a file name). The
+regular expression should be compiled with the ``re.VERBOSE`` and ``re.IGNORECASE``
+flags set.
+
+:meta hide-value:
+"""
+
+
+# Validation pattern for local version in replace()
+_LOCAL_PATTERN = re.compile(r"[a-z0-9]+(?:[._-][a-z0-9]+)*", re.IGNORECASE)
+
+
+def _validate_epoch(value: object, /) -> int:
+    epoch = value or 0
+    if isinstance(epoch, int) and epoch >= 0:
+        return epoch
+    msg = f"epoch must be non-negative integer, got {epoch}"
+    raise InvalidVersion(msg)
+
+
+def _validate_release(value: object, /) -> tuple[int, ...]:
+    release = (0,) if value is None else value
+    if (
+        isinstance(release, tuple)
+        and len(release) > 0
+        and all(isinstance(i, int) and i >= 0 for i in release)
+    ):
+        return release
+    msg = f"release must be a non-empty tuple of non-negative integers, got {release}"
+    raise InvalidVersion(msg)
+
+
+def _validate_pre(value: object, /) -> tuple[Literal["a", "b", "rc"], int] | None:
+    if value is None:
+        return value
+    if (
+        isinstance(value, tuple)
+        and len(value) == 2
+        and value[0] in ("a", "b", "rc")
+        and isinstance(value[1], int)
+        and value[1] >= 0
+    ):
+        return value
+    msg = f"pre must be a tuple of ('a'|'b'|'rc', non-negative int), got {value}"
+    raise InvalidVersion(msg)
+
+
+def _validate_post(value: object, /) -> tuple[Literal["post"], int] | None:
+    if value is None:
+        return value
+    if isinstance(value, int) and value >= 0:
+        return ("post", value)
+    msg = f"post must be non-negative integer, got {value}"
+    raise InvalidVersion(msg)
+
+
+def _validate_dev(value: object, /) -> tuple[Literal["dev"], int] | None:
+    if value is None:
+        return value
+    if isinstance(value, int) and value >= 0:
+        return ("dev", value)
+    msg = f"dev must be non-negative integer, got {value}"
+    raise InvalidVersion(msg)
+
+
+def _validate_local(value: object, /) -> LocalType | None:
+    if value is None:
+        return value
+    if isinstance(value, str) and _LOCAL_PATTERN.fullmatch(value):
+        return _parse_local_version(value)
+    msg = f"local must be a valid version string, got {value!r}"
+    raise InvalidVersion(msg)
+
+
+# Backward compatibility for internals before 26.0. Do not use.
+class _Version(NamedTuple):
+    epoch: int
+    release: tuple[int, ...]
+    dev: tuple[str, int] | None
+    pre: tuple[str, int] | None
+    post: tuple[str, int] | None
+    local: LocalType | None
+
+
+class Version(_BaseVersion):
+    """This class abstracts handling of a project's versions.
+
+    A :class:`Version` instance is comparison aware and can be compared and
+    sorted using the standard Python interfaces.
+
+    >>> v1 = Version("1.0a5")
+    >>> v2 = Version("1.0")
+    >>> v1
+    
+    >>> v2
+    
+    >>> v1 < v2
+    True
+    >>> v1 == v2
+    False
+    >>> v1 > v2
+    False
+    >>> v1 >= v2
+    False
+    >>> v1 <= v2
+    True
+    """
+
+    __slots__ = ("_dev", "_epoch", "_key_cache", "_local", "_post", "_pre", "_release")
+    __match_args__ = ("_str",)
+
+    _regex = re.compile(r"\s*" + VERSION_PATTERN + r"\s*", re.VERBOSE | re.IGNORECASE)
+
+    _epoch: int
+    _release: tuple[int, ...]
+    _dev: tuple[str, int] | None
+    _pre: tuple[str, int] | None
+    _post: tuple[str, int] | None
+    _local: LocalType | None
+
+    _key_cache: CmpKey | None
+
+    def __init__(self, version: str) -> None:
+        """Initialize a Version object.
+
+        :param version:
+            The string representation of a version which will be parsed and normalized
+            before use.
+        :raises InvalidVersion:
+            If the ``version`` does not conform to PEP 440 in any way then this
+            exception will be raised.
+        """
+        # Validate the version and parse it into pieces
+        match = self._regex.fullmatch(version)
+        if not match:
+            raise InvalidVersion(f"Invalid version: {version!r}")
+        self._epoch = int(match.group("epoch")) if match.group("epoch") else 0
+        self._release = tuple(map(int, match.group("release").split(".")))
+        self._pre = _parse_letter_version(match.group("pre_l"), match.group("pre_n"))
+        self._post = _parse_letter_version(
+            match.group("post_l"), match.group("post_n1") or match.group("post_n2")
+        )
+        self._dev = _parse_letter_version(match.group("dev_l"), match.group("dev_n"))
+        self._local = _parse_local_version(match.group("local"))
+
+        # Key which will be used for sorting
+        self._key_cache = None
+
+    def __replace__(self, **kwargs: Unpack[_VersionReplace]) -> Self:
+        epoch = _validate_epoch(kwargs["epoch"]) if "epoch" in kwargs else self._epoch
+        release = (
+            _validate_release(kwargs["release"])
+            if "release" in kwargs
+            else self._release
+        )
+        pre = _validate_pre(kwargs["pre"]) if "pre" in kwargs else self._pre
+        post = _validate_post(kwargs["post"]) if "post" in kwargs else self._post
+        dev = _validate_dev(kwargs["dev"]) if "dev" in kwargs else self._dev
+        local = _validate_local(kwargs["local"]) if "local" in kwargs else self._local
+
+        if (
+            epoch == self._epoch
+            and release == self._release
+            and pre == self._pre
+            and post == self._post
+            and dev == self._dev
+            and local == self._local
+        ):
+            return self
+
+        new_version = self.__class__.__new__(self.__class__)
+        new_version._key_cache = None
+        new_version._epoch = epoch
+        new_version._release = release
+        new_version._pre = pre
+        new_version._post = post
+        new_version._dev = dev
+        new_version._local = local
+
+        return new_version
+
+    @property
+    def _key(self) -> CmpKey:
+        if self._key_cache is None:
+            self._key_cache = _cmpkey(
+                self._epoch,
+                self._release,
+                self._pre,
+                self._post,
+                self._dev,
+                self._local,
+            )
+        return self._key_cache
+
+    @property
+    @_deprecated("Version._version is private and will be removed soon")
+    def _version(self) -> _Version:
+        return _Version(
+            self._epoch, self._release, self._dev, self._pre, self._post, self._local
+        )
+
+    @_version.setter
+    @_deprecated("Version._version is private and will be removed soon")
+    def _version(self, value: _Version) -> None:
+        self._epoch = value.epoch
+        self._release = value.release
+        self._dev = value.dev
+        self._pre = value.pre
+        self._post = value.post
+        self._local = value.local
+        self._key_cache = None
+
+    def __repr__(self) -> str:
+        """A representation of the Version that shows all internal state.
+
+        >>> Version('1.0.0')
+        
+        """
+        return f""
+
+    def __str__(self) -> str:
+        """A string representation of the version that can be round-tripped.
+
+        >>> str(Version("1.0a5"))
+        '1.0a5'
+        """
+        # This is a hot function, so not calling self.base_version
+        version = ".".join(map(str, self.release))
+
+        # Epoch
+        if self.epoch:
+            version = f"{self.epoch}!{version}"
+
+        # Pre-release
+        if self.pre is not None:
+            version += "".join(map(str, self.pre))
+
+        # Post-release
+        if self.post is not None:
+            version += f".post{self.post}"
+
+        # Development release
+        if self.dev is not None:
+            version += f".dev{self.dev}"
+
+        # Local version segment
+        if self.local is not None:
+            version += f"+{self.local}"
+
+        return version
+
+    @property
+    def _str(self) -> str:
+        """Internal property for match_args"""
+        return str(self)
+
+    @property
+    def epoch(self) -> int:
+        """The epoch of the version.
+
+        >>> Version("2.0.0").epoch
+        0
+        >>> Version("1!2.0.0").epoch
+        1
+        """
+        return self._epoch
+
+    @property
+    def release(self) -> tuple[int, ...]:
+        """The components of the "release" segment of the version.
+
+        >>> Version("1.2.3").release
+        (1, 2, 3)
+        >>> Version("2.0.0").release
+        (2, 0, 0)
+        >>> Version("1!2.0.0.post0").release
+        (2, 0, 0)
+
+        Includes trailing zeroes but not the epoch or any pre-release / development /
+        post-release suffixes.
+        """
+        return self._release
+
+    @property
+    def pre(self) -> tuple[str, int] | None:
+        """The pre-release segment of the version.
+
+        >>> print(Version("1.2.3").pre)
+        None
+        >>> Version("1.2.3a1").pre
+        ('a', 1)
+        >>> Version("1.2.3b1").pre
+        ('b', 1)
+        >>> Version("1.2.3rc1").pre
+        ('rc', 1)
+        """
+        return self._pre
+
+    @property
+    def post(self) -> int | None:
+        """The post-release number of the version.
+
+        >>> print(Version("1.2.3").post)
+        None
+        >>> Version("1.2.3.post1").post
+        1
+        """
+        return self._post[1] if self._post else None
+
+    @property
+    def dev(self) -> int | None:
+        """The development number of the version.
+
+        >>> print(Version("1.2.3").dev)
+        None
+        >>> Version("1.2.3.dev1").dev
+        1
+        """
+        return self._dev[1] if self._dev else None
+
+    @property
+    def local(self) -> str | None:
+        """The local version segment of the version.
+
+        >>> print(Version("1.2.3").local)
+        None
+        >>> Version("1.2.3+abc").local
+        'abc'
+        """
+        if self._local:
+            return ".".join(str(x) for x in self._local)
+        else:
+            return None
+
+    @property
+    def public(self) -> str:
+        """The public portion of the version.
+
+        >>> Version("1.2.3").public
+        '1.2.3'
+        >>> Version("1.2.3+abc").public
+        '1.2.3'
+        >>> Version("1!1.2.3dev1+abc").public
+        '1!1.2.3.dev1'
+        """
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self) -> str:
+        """The "base version" of the version.
+
+        >>> Version("1.2.3").base_version
+        '1.2.3'
+        >>> Version("1.2.3+abc").base_version
+        '1.2.3'
+        >>> Version("1!1.2.3dev1+abc").base_version
+        '1!1.2.3'
+
+        The "base version" is the public version of the project without any pre or post
+        release markers.
+        """
+        release_segment = ".".join(map(str, self.release))
+        return f"{self.epoch}!{release_segment}" if self.epoch else release_segment
+
+    @property
+    def is_prerelease(self) -> bool:
+        """Whether this version is a pre-release.
+
+        >>> Version("1.2.3").is_prerelease
+        False
+        >>> Version("1.2.3a1").is_prerelease
+        True
+        >>> Version("1.2.3b1").is_prerelease
+        True
+        >>> Version("1.2.3rc1").is_prerelease
+        True
+        >>> Version("1.2.3dev1").is_prerelease
+        True
+        """
+        return self.dev is not None or self.pre is not None
+
+    @property
+    def is_postrelease(self) -> bool:
+        """Whether this version is a post-release.
+
+        >>> Version("1.2.3").is_postrelease
+        False
+        >>> Version("1.2.3.post1").is_postrelease
+        True
+        """
+        return self.post is not None
+
+    @property
+    def is_devrelease(self) -> bool:
+        """Whether this version is a development release.
+
+        >>> Version("1.2.3").is_devrelease
+        False
+        >>> Version("1.2.3.dev1").is_devrelease
+        True
+        """
+        return self.dev is not None
+
+    @property
+    def major(self) -> int:
+        """The first item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").major
+        1
+        """
+        return self.release[0] if len(self.release) >= 1 else 0
+
+    @property
+    def minor(self) -> int:
+        """The second item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").minor
+        2
+        >>> Version("1").minor
+        0
+        """
+        return self.release[1] if len(self.release) >= 2 else 0
+
+    @property
+    def micro(self) -> int:
+        """The third item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").micro
+        3
+        >>> Version("1").micro
+        0
+        """
+        return self.release[2] if len(self.release) >= 3 else 0
+
+
+class _TrimmedRelease(Version):
+    __slots__ = ()
+
+    def __init__(self, version: str | Version) -> None:
+        if isinstance(version, Version):
+            self._epoch = version._epoch
+            self._release = version._release
+            self._dev = version._dev
+            self._pre = version._pre
+            self._post = version._post
+            self._local = version._local
+            self._key_cache = version._key_cache
+            return
+        super().__init__(version)  # pragma: no cover
+
+    @property
+    def release(self) -> tuple[int, ...]:
+        """
+        Release segment without any trailing zeros.
+
+        >>> _TrimmedRelease('1.0.0').release
+        (1,)
+        >>> _TrimmedRelease('0.0').release
+        (0,)
+        """
+        # This leaves one 0.
+        rel = super().release
+        len_release = len(rel)
+        i = len_release
+        while i > 1 and rel[i - 1] == 0:
+            i -= 1
+        return rel if i == len_release else rel[:i]
+
+
+def _parse_letter_version(
+    letter: str | None, number: str | bytes | SupportsInt | None
+) -> tuple[str, int] | None:
+    if letter:
+        # 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.
+        letter = _LETTER_NORMALIZATION.get(letter, letter)
+
+        # We consider there to be an implicit 0 in a pre-release if there is
+        # not a numeral associated with it.
+        return letter, int(number or 0)
+
+    if 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)
+        return "post", int(number)
+
+    return None
+
+
+_local_version_separators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local: str | None) -> LocalType | None:
+    """
+    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: tuple[str, int] | None,
+    post: tuple[str, int] | None,
+    dev: tuple[str, int] | None,
+    local: LocalType | None,
+) -> CmpKey:
+    # When we compare a release version, we want to compare it with all of the
+    # trailing zeros removed. We will use this for our sorting key.
+    len_release = len(release)
+    i = len_release
+    while i and release[i - 1] == 0:
+        i -= 1
+    _release = release if i == len_release else release[:i]
+
+    # 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: CmpPrePostDevType = 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: CmpPrePostDevType = NegativeInfinity
+
+    else:
+        _post = post
+
+    # Versions without a development segment should sort after those with one.
+    if dev is None:
+        _dev: CmpPrePostDevType = Infinity
+
+    else:
+        _dev = dev
+
+    if local is None:
+        # Versions without a local segment should sort before those with one.
+        _local: CmpLocalType = 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