580 lines
16 KiB
Python
580 lines
16 KiB
Python
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# Vendored from https://github.com/pypa/packaging/blob/main/packaging/_structures.py
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# and https://github.com/pypa/packaging/blob/main/packaging/_structures.py
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# changeset ae891fd74d6dd4c6063bb04f2faeadaac6fc6313
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# 04/30/2021
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# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. Licence at LICENSES/PACKAGING_LICENSE
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from __future__ import annotations
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import collections
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from collections.abc import Iterator
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import itertools
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import re
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from typing import (
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Callable,
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SupportsInt,
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Tuple,
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Union,
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)
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import warnings
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__all__ = ["parse", "Version", "LegacyVersion", "InvalidVersion", "VERSION_PATTERN"]
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class InfinityType:
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def __repr__(self) -> str:
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return "Infinity"
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def __hash__(self) -> int:
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return hash(repr(self))
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def __lt__(self, other: object) -> bool:
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return False
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def __le__(self, other: object) -> bool:
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return False
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def __eq__(self, other: object) -> bool:
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return isinstance(other, type(self))
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def __ne__(self, other: object) -> bool:
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return not isinstance(other, type(self))
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def __gt__(self, other: object) -> bool:
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return True
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def __ge__(self, other: object) -> bool:
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return True
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def __neg__(self: object) -> NegativeInfinityType:
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return NegativeInfinity
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Infinity = InfinityType()
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class NegativeInfinityType:
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def __repr__(self) -> str:
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return "-Infinity"
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def __hash__(self) -> int:
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return hash(repr(self))
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def __lt__(self, other: object) -> bool:
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return True
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def __le__(self, other: object) -> bool:
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return True
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def __eq__(self, other: object) -> bool:
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return isinstance(other, type(self))
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def __ne__(self, other: object) -> bool:
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return not isinstance(other, type(self))
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def __gt__(self, other: object) -> bool:
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return False
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def __ge__(self, other: object) -> bool:
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return False
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def __neg__(self: object) -> InfinityType:
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return Infinity
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NegativeInfinity = NegativeInfinityType()
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InfiniteTypes = Union[InfinityType, NegativeInfinityType]
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PrePostDevType = Union[InfiniteTypes, tuple[str, int]]
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SubLocalType = Union[InfiniteTypes, int, str]
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LocalType = Union[
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NegativeInfinityType,
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tuple[
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Union[
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SubLocalType,
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tuple[SubLocalType, str],
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tuple[NegativeInfinityType, SubLocalType],
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],
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...,
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],
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]
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CmpKey = tuple[
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int, tuple[int, ...], PrePostDevType, PrePostDevType, PrePostDevType, LocalType
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]
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LegacyCmpKey = tuple[int, tuple[str, ...]]
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VersionComparisonMethod = Callable[
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[Union[CmpKey, LegacyCmpKey], Union[CmpKey, LegacyCmpKey]], bool
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]
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_Version = collections.namedtuple(
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"_Version", ["epoch", "release", "dev", "pre", "post", "local"]
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)
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def parse(version: str) -> LegacyVersion | Version:
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"""
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Parse the given version string and return either a :class:`Version` object
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or a :class:`LegacyVersion` object depending on if the given version is
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a valid PEP 440 version or a legacy version.
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"""
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try:
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return Version(version)
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except InvalidVersion:
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return LegacyVersion(version)
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class InvalidVersion(ValueError):
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"""
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An invalid version was found, users should refer to PEP 440.
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Examples
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--------
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>>> pd.util.version.Version('1.')
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Traceback (most recent call last):
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InvalidVersion: Invalid version: '1.'
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"""
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class _BaseVersion:
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_key: CmpKey | LegacyCmpKey
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def __hash__(self) -> int:
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return hash(self._key)
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# Please keep the duplicated `isinstance` check
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# in the six comparisons hereunder
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# unless you find a way to avoid adding overhead function calls.
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def __lt__(self, other: _BaseVersion) -> bool:
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if not isinstance(other, _BaseVersion):
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return NotImplemented
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return self._key < other._key
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def __le__(self, other: _BaseVersion) -> bool:
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if not isinstance(other, _BaseVersion):
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return NotImplemented
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return self._key <= other._key
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, _BaseVersion):
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return NotImplemented
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return self._key == other._key
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def __ge__(self, other: _BaseVersion) -> bool:
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if not isinstance(other, _BaseVersion):
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return NotImplemented
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return self._key >= other._key
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def __gt__(self, other: _BaseVersion) -> bool:
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if not isinstance(other, _BaseVersion):
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return NotImplemented
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return self._key > other._key
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def __ne__(self, other: object) -> bool:
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if not isinstance(other, _BaseVersion):
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return NotImplemented
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return self._key != other._key
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class LegacyVersion(_BaseVersion):
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def __init__(self, version: str) -> None:
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self._version = str(version)
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self._key = _legacy_cmpkey(self._version)
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warnings.warn(
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"Creating a LegacyVersion has been deprecated and will be "
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"removed in the next major release.",
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DeprecationWarning,
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)
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def __str__(self) -> str:
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return self._version
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def __repr__(self) -> str:
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return f"<LegacyVersion('{self}')>"
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@property
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def public(self) -> str:
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return self._version
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@property
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def base_version(self) -> str:
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return self._version
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@property
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def epoch(self) -> int:
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return -1
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@property
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def release(self) -> None:
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return None
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@property
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def pre(self) -> None:
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return None
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@property
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def post(self) -> None:
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return None
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@property
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def dev(self) -> None:
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return None
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@property
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def local(self) -> None:
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return None
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@property
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def is_prerelease(self) -> bool:
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return False
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@property
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def is_postrelease(self) -> bool:
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return False
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@property
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def is_devrelease(self) -> bool:
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return False
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_legacy_version_component_re = re.compile(r"(\d+ | [a-z]+ | \.| -)", re.VERBOSE)
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_legacy_version_replacement_map = {
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"pre": "c",
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"preview": "c",
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"-": "final-",
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"rc": "c",
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"dev": "@",
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}
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def _parse_version_parts(s: str) -> Iterator[str]:
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for part in _legacy_version_component_re.split(s):
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mapped_part = _legacy_version_replacement_map.get(part, part)
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if not mapped_part or mapped_part == ".":
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continue
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if mapped_part[:1] in "0123456789":
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# pad for numeric comparison
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yield mapped_part.zfill(8)
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else:
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yield "*" + mapped_part
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# ensure that alpha/beta/candidate are before final
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yield "*final"
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def _legacy_cmpkey(version: str) -> LegacyCmpKey:
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# We hardcode an epoch of -1 here. A PEP 440 version can only have a epoch
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# greater than or equal to 0. This will effectively put the LegacyVersion,
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# which uses the defacto standard originally implemented by setuptools,
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# as before all PEP 440 versions.
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epoch = -1
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# This scheme is taken from pkg_resources.parse_version setuptools prior to
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# it's adoption of the packaging library.
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parts: list[str] = []
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for part in _parse_version_parts(version.lower()):
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if part.startswith("*"):
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# remove "-" before a prerelease tag
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if part < "*final":
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while parts and parts[-1] == "*final-":
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parts.pop()
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# remove trailing zeros from each series of numeric parts
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while parts and parts[-1] == "00000000":
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parts.pop()
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parts.append(part)
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return epoch, tuple(parts)
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# Deliberately not anchored to the start and end of the string, to make it
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# easier for 3rd party code to reuse
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VERSION_PATTERN = r"""
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v?
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(?:
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(?:(?P<epoch>[0-9]+)!)? # epoch
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(?P<release>[0-9]+(?:\.[0-9]+)*) # release segment
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(?P<pre> # pre-release
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[-_\.]?
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(?P<pre_l>(a|b|c|rc|alpha|beta|pre|preview))
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[-_\.]?
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(?P<pre_n>[0-9]+)?
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)?
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(?P<post> # post release
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(?:-(?P<post_n1>[0-9]+))
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(?:
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[-_\.]?
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(?P<post_l>post|rev|r)
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[-_\.]?
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(?P<post_n2>[0-9]+)?
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)
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)?
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(?P<dev> # dev release
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[-_\.]?
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(?P<dev_l>dev)
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[-_\.]?
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(?P<dev_n>[0-9]+)?
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)?
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)
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(?:\+(?P<local>[a-z0-9]+(?:[-_\.][a-z0-9]+)*))? # local version
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"""
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class Version(_BaseVersion):
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_regex = re.compile(r"^\s*" + VERSION_PATTERN + r"\s*$", re.VERBOSE | re.IGNORECASE)
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def __init__(self, version: str) -> None:
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# Validate the version and parse it into pieces
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match = self._regex.search(version)
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if not match:
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raise InvalidVersion(f"Invalid version: '{version}'")
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# Store the parsed out pieces of the version
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self._version = _Version(
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epoch=int(match.group("epoch")) if match.group("epoch") else 0,
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release=tuple(int(i) for i in match.group("release").split(".")),
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pre=_parse_letter_version(match.group("pre_l"), match.group("pre_n")),
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post=_parse_letter_version(
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match.group("post_l"), match.group("post_n1") or match.group("post_n2")
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),
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dev=_parse_letter_version(match.group("dev_l"), match.group("dev_n")),
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local=_parse_local_version(match.group("local")),
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)
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# Generate a key which will be used for sorting
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self._key = _cmpkey(
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self._version.epoch,
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self._version.release,
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self._version.pre,
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self._version.post,
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self._version.dev,
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self._version.local,
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)
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def __repr__(self) -> str:
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return f"<Version('{self}')>"
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def __str__(self) -> str:
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parts = []
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# Epoch
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if self.epoch != 0:
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parts.append(f"{self.epoch}!")
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# Release segment
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parts.append(".".join([str(x) for x in self.release]))
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# Pre-release
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if self.pre is not None:
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parts.append("".join([str(x) for x in self.pre]))
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# Post-release
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if self.post is not None:
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parts.append(f".post{self.post}")
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# Development release
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if self.dev is not None:
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parts.append(f".dev{self.dev}")
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# Local version segment
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if self.local is not None:
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parts.append(f"+{self.local}")
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return "".join(parts)
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@property
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def epoch(self) -> int:
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_epoch: int = self._version.epoch
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return _epoch
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@property
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def release(self) -> tuple[int, ...]:
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_release: tuple[int, ...] = self._version.release
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return _release
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@property
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def pre(self) -> tuple[str, int] | None:
|
||
|
|
_pre: tuple[str, int] | None = self._version.pre
|
||
|
|
return _pre
|
||
|
|
|
||
|
|
@property
|
||
|
|
def post(self) -> int | None:
|
||
|
|
return self._version.post[1] if self._version.post else None
|
||
|
|
|
||
|
|
@property
|
||
|
|
def dev(self) -> int | None:
|
||
|
|
return self._version.dev[1] if self._version.dev else None
|
||
|
|
|
||
|
|
@property
|
||
|
|
def local(self) -> str | None:
|
||
|
|
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: str | bytes | SupportsInt
|
||
|
|
) -> tuple[str, int] | None:
|
||
|
|
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) -> 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: tuple[SubLocalType] | None,
|
||
|
|
) -> 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
|