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📄 __init__.py """A package that contains models that represent entities. """	63 B	2026-01-07 23:39
📁 __pycache__	-	2026-03-21 15:53
📄 candidate.py from pip._vendor.packaging.version import parse as parse_version from pip._internal.models.link import Link from pip._internal.utils.models import KeyBasedCompareMixin class InstallationCandidate(KeyBasedCompareMixin): """Represents a potential "candidate" for installation.""" __slots__ = ["name", "version", "link"] def __init__(self, name: str, version: str, link: Link) -> None: self.name = name self.version = parse_version(version) self.link = link super().__init__( key=(self.name, self.version, self.link), defining_class=InstallationCandidate, ) def __repr__(self) -> str: return "<InstallationCandidate({!r}, {!r}, {!r})>".format( self.name, self.version, self.link, ) def __str__(self) -> str: return "{!r} candidate (version {} at {})".format( self.name, self.version, self.link, )	990 B	2026-01-07 23:39
📄 direct_url.py """ PEP 610 """ import json import re import urllib.parse from typing import Any, Dict, Iterable, Optional, Type, TypeVar, Union __all__ = [ "DirectUrl", "DirectUrlValidationError", "DirInfo", "ArchiveInfo", "VcsInfo", ] T = TypeVar("T") DIRECT_URL_METADATA_NAME = "direct_url.json" ENV_VAR_RE = re.compile(r"^\$\{[A-Za-z0-9-_]+\}(:\$\{[A-Za-z0-9-_]+\})?$") class DirectUrlValidationError(Exception): pass def _get( d: Dict[str, Any], expected_type: Type[T], key: str, default: Optional[T] = None ) -> Optional[T]: """Get value from dictionary and verify expected type.""" if key not in d: return default value = d[key] if not isinstance(value, expected_type): raise DirectUrlValidationError( "{!r} has unexpected type for {} (expected {})".format( value, key, expected_type ) ) return value def _get_required( d: Dict[str, Any], expected_type: Type[T], key: str, default: Optional[T] = None ) -> T: value = _get(d, expected_type, key, default) if value is None: raise DirectUrlValidationError(f"{key} must have a value") return value def _exactly_one_of(infos: Iterable[Optional["InfoType"]]) -> "InfoType": infos = [info for info in infos if info is not None] if not infos: raise DirectUrlValidationError( "missing one of archive_info, dir_info, vcs_info" ) if len(infos) > 1: raise DirectUrlValidationError( "more than one of archive_info, dir_info, vcs_info" ) assert infos[0] is not None return infos[0] def _filter_none(**kwargs: Any) -> Dict[str, Any]: """Make dict excluding None values.""" return {k: v for k, v in kwargs.items() if v is not None} class VcsInfo: name = "vcs_info" def __init__( self, vcs: str, commit_id: str, requested_revision: Optional[str] = None, resolved_revision: Optional[str] = None, resolved_revision_type: Optional[str] = None, ) -> None: self.vcs = vcs self.requested_revision = requested_revision self.commit_id = commit_id self.resolved_revision = resolved_revision self.resolved_revision_type = resolved_revision_type @classmethod def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["VcsInfo"]: if d is None: return None return cls( vcs=_get_required(d, str, "vcs"), commit_id=_get_required(d, str, "commit_id"), requested_revision=_get(d, str, "requested_revision"), resolved_revision=_get(d, str, "resolved_revision"), resolved_revision_type=_get(d, str, "resolved_revision_type"), ) def _to_dict(self) -> Dict[str, Any]: return _filter_none( vcs=self.vcs, requested_revision=self.requested_revision, commit_id=self.commit_id, resolved_revision=self.resolved_revision, resolved_revision_type=self.resolved_revision_type, ) class ArchiveInfo: name = "archive_info" def __init__( self, hash: Optional[str] = None, ) -> None: self.hash = hash @classmethod def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["ArchiveInfo"]: if d is None: return None return cls(hash=_get(d, str, "hash")) def _to_dict(self) -> Dict[str, Any]: return _filter_none(hash=self.hash) class DirInfo: name = "dir_info" def __init__( self, editable: bool = False, ) -> None: self.editable = editable @classmethod def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["DirInfo"]: if d is None: return None return cls(editable=_get_required(d, bool, "editable", default=False)) def _to_dict(self) -> Dict[str, Any]: return _filter_none(editable=self.editable or None) InfoType = Union[ArchiveInfo, DirInfo, VcsInfo] class DirectUrl: def __init__( self, url: str, info: InfoType, subdirectory: Optional[str] = None, ) -> None: self.url = url self.info = info self.subdirectory = subdirectory def _remove_auth_from_netloc(self, netloc: str) -> str: if "@" not in netloc: return netloc user_pass, netloc_no_user_pass = netloc.split("@", 1) if ( isinstance(self.info, VcsInfo) and self.info.vcs == "git" and user_pass == "git" ): return netloc if ENV_VAR_RE.match(user_pass): return netloc return netloc_no_user_pass @property def redacted_url(self) -> str: """url with user:password part removed unless it is formed with environment variables as specified in PEP 610, or it is ``git`` in the case of a git URL. """ purl = urllib.parse.urlsplit(self.url) netloc = self._remove_auth_from_netloc(purl.netloc) surl = urllib.parse.urlunsplit( (purl.scheme, netloc, purl.path, purl.query, purl.fragment) ) return surl def validate(self) -> None: self.from_dict(self.to_dict()) @classmethod def from_dict(cls, d: Dict[str, Any]) -> "DirectUrl": return DirectUrl( url=_get_required(d, str, "url"), subdirectory=_get(d, str, "subdirectory"), info=_exactly_one_of( [ ArchiveInfo._from_dict(_get(d, dict, "archive_info")), DirInfo._from_dict(_get(d, dict, "dir_info")), VcsInfo._from_dict(_get(d, dict, "vcs_info")), ] ), ) def to_dict(self) -> Dict[str, Any]: res = _filter_none( url=self.redacted_url, subdirectory=self.subdirectory, ) res[self.info.name] = self.info._to_dict() return res @classmethod def from_json(cls, s: str) -> "DirectUrl": return cls.from_dict(json.loads(s)) def to_json(self) -> str: return json.dumps(self.to_dict(), sort_keys=True) def is_local_editable(self) -> bool: return isinstance(self.info, DirInfo) and self.info.editable	6.2 KB	2026-01-07 23:39
📄 format_control.py from typing import FrozenSet, Optional, Set from pip._vendor.packaging.utils import canonicalize_name from pip._internal.exceptions import CommandError class FormatControl: """Helper for managing formats from which a package can be installed.""" __slots__ = ["no_binary", "only_binary"] def __init__( self, no_binary: Optional[Set[str]] = None, only_binary: Optional[Set[str]] = None, ) -> None: if no_binary is None: no_binary = set() if only_binary is None: only_binary = set() self.no_binary = no_binary self.only_binary = only_binary def __eq__(self, other: object) -> bool: if not isinstance(other, self.__class__): return NotImplemented if self.__slots__ != other.__slots__: return False return all(getattr(self, k) == getattr(other, k) for k in self.__slots__) def __repr__(self) -> str: return "{}({}, {})".format( self.__class__.__name__, self.no_binary, self.only_binary ) @staticmethod def handle_mutual_excludes(value: str, target: Set[str], other: Set[str]) -> None: if value.startswith("-"): raise CommandError( "--no-binary / --only-binary option requires 1 argument." ) new = value.split(",") while ":all:" in new: other.clear() target.clear() target.add(":all:") del new[: new.index(":all:") + 1] # Without a none, we want to discard everything as :all: covers it if ":none:" not in new: return for name in new: if name == ":none:": target.clear() continue name = canonicalize_name(name) other.discard(name) target.add(name) def get_allowed_formats(self, canonical_name: str) -> FrozenSet[str]: result = {"binary", "source"} if canonical_name in self.only_binary: result.discard("source") elif canonical_name in self.no_binary: result.discard("binary") elif ":all:" in self.only_binary: result.discard("source") elif ":all:" in self.no_binary: result.discard("binary") return frozenset(result) def disallow_binaries(self) -> None: self.handle_mutual_excludes( ":all:", self.no_binary, self.only_binary, )	2.46 KB	2026-01-07 23:39
📄 index.py import urllib.parse class PackageIndex: """Represents a Package Index and provides easier access to endpoints""" __slots__ = ["url", "netloc", "simple_url", "pypi_url", "file_storage_domain"] def __init__(self, url: str, file_storage_domain: str) -> None: super().__init__() self.url = url self.netloc = urllib.parse.urlsplit(url).netloc self.simple_url = self._url_for_path("simple") self.pypi_url = self._url_for_path("pypi") # This is part of a temporary hack used to block installs of PyPI # packages which depend on external urls only necessary until PyPI can # block such packages themselves self.file_storage_domain = file_storage_domain def _url_for_path(self, path: str) -> str: return urllib.parse.urljoin(self.url, path) PyPI = PackageIndex("https://pypi.org/", file_storage_domain="files.pythonhosted.org") TestPyPI = PackageIndex( "https://test.pypi.org/", file_storage_domain="test-files.pythonhosted.org" )	1.01 KB	2026-01-07 23:39
📄 link.py import functools import logging import os import posixpath import re import urllib.parse from typing import TYPE_CHECKING, Dict, List, NamedTuple, Optional, Tuple, Union from pip._internal.utils.filetypes import WHEEL_EXTENSION from pip._internal.utils.hashes import Hashes from pip._internal.utils.misc import ( redact_auth_from_url, split_auth_from_netloc, splitext, ) from pip._internal.utils.models import KeyBasedCompareMixin from pip._internal.utils.urls import path_to_url, url_to_path if TYPE_CHECKING: from pip._internal.index.collector import HTMLPage logger = logging.getLogger(__name__) _SUPPORTED_HASHES = ("sha1", "sha224", "sha384", "sha256", "sha512", "md5") class Link(KeyBasedCompareMixin): """Represents a parsed link from a Package Index's simple URL""" __slots__ = [ "_parsed_url", "_url", "comes_from", "requires_python", "yanked_reason", "cache_link_parsing", ] def __init__( self, url: str, comes_from: Optional[Union[str, "HTMLPage"]] = None, requires_python: Optional[str] = None, yanked_reason: Optional[str] = None, cache_link_parsing: bool = True, ) -> None: """ :param url: url of the resource pointed to (href of the link) :param comes_from: instance of HTMLPage where the link was found, or string. :param requires_python: String containing the `Requires-Python` metadata field, specified in PEP 345. This may be specified by a data-requires-python attribute in the HTML link tag, as described in PEP 503. :param yanked_reason: the reason the file has been yanked, if the file has been yanked, or None if the file hasn't been yanked. This is the value of the "data-yanked" attribute, if present, in a simple repository HTML link. If the file has been yanked but no reason was provided, this should be the empty string. See PEP 592 for more information and the specification. :param cache_link_parsing: A flag that is used elsewhere to determine whether resources retrieved from this link should be cached. PyPI index urls should generally have this set to False, for example. """ # url can be a UNC windows share if url.startswith("\\\\"): url = path_to_url(url) self._parsed_url = urllib.parse.urlsplit(url) # Store the url as a private attribute to prevent accidentally # trying to set a new value. self._url = url self.comes_from = comes_from self.requires_python = requires_python if requires_python else None self.yanked_reason = yanked_reason super().__init__(key=url, defining_class=Link) self.cache_link_parsing = cache_link_parsing def __str__(self) -> str: if self.requires_python: rp = f" (requires-python:{self.requires_python})" else: rp = "" if self.comes_from: return "{} (from {}){}".format( redact_auth_from_url(self._url), self.comes_from, rp ) else: return redact_auth_from_url(str(self._url)) def __repr__(self) -> str: return f"<Link {self}>" @property def url(self) -> str: return self._url @property def filename(self) -> str: path = self.path.rstrip("/") name = posixpath.basename(path) if not name: # Make sure we don't leak auth information if the netloc # includes a username and password. netloc, user_pass = split_auth_from_netloc(self.netloc) return netloc name = urllib.parse.unquote(name) assert name, f"URL {self._url!r} produced no filename" return name @property def file_path(self) -> str: return url_to_path(self.url) @property def scheme(self) -> str: return self._parsed_url.scheme @property def netloc(self) -> str: """ This can contain auth information. """ return self._parsed_url.netloc @property def path(self) -> str: return urllib.parse.unquote(self._parsed_url.path) def splitext(self) -> Tuple[str, str]: return splitext(posixpath.basename(self.path.rstrip("/"))) @property def ext(self) -> str: return self.splitext()[1] @property def url_without_fragment(self) -> str: scheme, netloc, path, query, fragment = self._parsed_url return urllib.parse.urlunsplit((scheme, netloc, path, query, "")) _egg_fragment_re = re.compile(r"[#&]egg=([^&])") @property def egg_fragment(self) -> Optional[str]: match = self._egg_fragment_re.search(self._url) if not match: return None return match.group(1) _subdirectory_fragment_re = re.compile(r"[#&]subdirectory=([^&])") @property def subdirectory_fragment(self) -> Optional[str]: match = self._subdirectory_fragment_re.search(self._url) if not match: return None return match.group(1) _hash_re = re.compile( r"({choices})=([a-f0-9]+)".format(choices="\|".join(_SUPPORTED_HASHES)) ) @property def hash(self) -> Optional[str]: match = self._hash_re.search(self._url) if match: return match.group(2) return None @property def hash_name(self) -> Optional[str]: match = self._hash_re.search(self._url) if match: return match.group(1) return None @property def show_url(self) -> str: return posixpath.basename(self._url.split("#", 1)[0].split("?", 1)[0]) @property def is_file(self) -> bool: return self.scheme == "file" def is_existing_dir(self) -> bool: return self.is_file and os.path.isdir(self.file_path) @property def is_wheel(self) -> bool: return self.ext == WHEEL_EXTENSION @property def is_vcs(self) -> bool: from pip._internal.vcs import vcs return self.scheme in vcs.all_schemes @property def is_yanked(self) -> bool: return self.yanked_reason is not None @property def has_hash(self) -> bool: return self.hash_name is not None def is_hash_allowed(self, hashes: Optional[Hashes]) -> bool: """ Return True if the link has a hash and it is allowed. """ if hashes is None or not self.has_hash: return False # Assert non-None so mypy knows self.hash_name and self.hash are str. assert self.hash_name is not None assert self.hash is not None return hashes.is_hash_allowed(self.hash_name, hex_digest=self.hash) class _CleanResult(NamedTuple): """Convert link for equivalency check. This is used in the resolver to check whether two URL-specified requirements likely point to the same distribution and can be considered equivalent. This equivalency logic avoids comparing URLs literally, which can be too strict (e.g. "a=1&b=2" vs "b=2&a=1") and produce conflicts unexpecting to users. Currently this does three things: 1. Drop the basic auth part. This is technically wrong since a server can serve different content based on auth, but if it does that, it is even impossible to guarantee two URLs without auth are equivalent, since the user can input different auth information when prompted. So the practical solution is to assume the auth doesn't affect the response. 2. Parse the query to avoid the ordering issue. Note that ordering under the same key in the query are NOT cleaned; i.e. "a=1&a=2" and "a=2&a=1" are still considered different. 3. Explicitly drop most of the fragment part, except ``subdirectory=`` and hash values, since it should have no impact the downloaded content. Note that this drops the "egg=" part historically used to denote the requested project (and extras), which is wrong in the strictest sense, but too many people are supplying it inconsistently to cause superfluous resolution conflicts, so we choose to also ignore them. """ parsed: urllib.parse.SplitResult query: Dict[str, List[str]] subdirectory: str hashes: Dict[str, str] def _clean_link(link: Link) -> _CleanResult: parsed = link._parsed_url netloc = parsed.netloc.rsplit("@", 1)[-1] # According to RFC 8089, an empty host in file: means localhost. if parsed.scheme == "file" and not netloc: netloc = "localhost" fragment = urllib.parse.parse_qs(parsed.fragment) if "egg" in fragment: logger.debug("Ignoring egg= fragment in %s", link) try: # If there are multiple subdirectory values, use the first one. # This matches the behavior of Link.subdirectory_fragment. subdirectory = fragment["subdirectory"][0] except (IndexError, KeyError): subdirectory = "" # If there are multiple hash values under the same algorithm, use the # first one. This matches the behavior of Link.hash_value. hashes = {k: fragment[k][0] for k in _SUPPORTED_HASHES if k in fragment} return _CleanResult( parsed=parsed._replace(netloc=netloc, query="", fragment=""), query=urllib.parse.parse_qs(parsed.query), subdirectory=subdirectory, hashes=hashes, ) @functools.lru_cache(maxsize=None) def links_equivalent(link1: Link, link2: Link) -> bool: return _clean_link(link1) == _clean_link(link2)	9.59 KB	2026-01-07 23:39
📄 scheme.py """ For types associated with installation schemes. For a general overview of available schemes and their context, see https://docs.python.org/3/install/index.html#alternate-installation. """ SCHEME_KEYS = ["platlib", "purelib", "headers", "scripts", "data"] class Scheme: """A Scheme holds paths which are used as the base directories for artifacts associated with a Python package. """ __slots__ = SCHEME_KEYS def __init__( self, platlib: str, purelib: str, headers: str, scripts: str, data: str, ) -> None: self.platlib = platlib self.purelib = purelib self.headers = headers self.scripts = scripts self.data = data	738 B	2026-01-07 23:39
📄 search_scope.py import itertools import logging import os import posixpath import urllib.parse from typing import List from pip._vendor.packaging.utils import canonicalize_name from pip._internal.models.index import PyPI from pip._internal.utils.compat import has_tls from pip._internal.utils.misc import normalize_path, redact_auth_from_url logger = logging.getLogger(__name__) class SearchScope: """ Encapsulates the locations that pip is configured to search. """ __slots__ = ["find_links", "index_urls"] @classmethod def create( cls, find_links: List[str], index_urls: List[str], ) -> "SearchScope": """ Create a SearchScope object after normalizing the `find_links`. """ # Build find_links. If an argument starts with ~, it may be # a local file relative to a home directory. So try normalizing # it and if it exists, use the normalized version. # This is deliberately conservative - it might be fine just to # blindly normalize anything starting with a ~... built_find_links: List[str] = [] for link in find_links: if link.startswith("~"): new_link = normalize_path(link) if os.path.exists(new_link): link = new_link built_find_links.append(link) # If we don't have TLS enabled, then WARN if anyplace we're looking # relies on TLS. if not has_tls(): for link in itertools.chain(index_urls, built_find_links): parsed = urllib.parse.urlparse(link) if parsed.scheme == "https": logger.warning( "pip is configured with locations that require " "TLS/SSL, however the ssl module in Python is not " "available." ) break return cls( find_links=built_find_links, index_urls=index_urls, ) def __init__( self, find_links: List[str], index_urls: List[str], ) -> None: self.find_links = find_links self.index_urls = index_urls def get_formatted_locations(self) -> str: lines = [] redacted_index_urls = [] if self.index_urls and self.index_urls != [PyPI.simple_url]: for url in self.index_urls: redacted_index_url = redact_auth_from_url(url) # Parse the URL purl = urllib.parse.urlsplit(redacted_index_url) # URL is generally invalid if scheme and netloc is missing # there are issues with Python and URL parsing, so this test # is a bit crude. See bpo-20271, bpo-23505. Python doesn't # always parse invalid URLs correctly - it should raise # exceptions for malformed URLs if not purl.scheme and not purl.netloc: logger.warning( 'The index url "%s" seems invalid, please provide a scheme.', redacted_index_url, ) redacted_index_urls.append(redacted_index_url) lines.append( "Looking in indexes: {}".format(", ".join(redacted_index_urls)) ) if self.find_links: lines.append( "Looking in links: {}".format( ", ".join(redact_auth_from_url(url) for url in self.find_links) ) ) return "\n".join(lines) def get_index_urls_locations(self, project_name: str) -> List[str]: """Returns the locations found via self.index_urls Checks the url_name on the main (first in the list) index and use this url_name to produce all locations """ def mkurl_pypi_url(url: str) -> str: loc = posixpath.join( url, urllib.parse.quote(canonicalize_name(project_name)) ) # For maximum compatibility with easy_install, ensure the path # ends in a trailing slash. Although this isn't in the spec # (and PyPI can handle it without the slash) some other index # implementations might break if they relied on easy_install's # behavior. if not loc.endswith("/"): loc = loc + "/" return loc return [mkurl_pypi_url(url) for url in self.index_urls]	4.41 KB	2026-01-07 23:39
📄 selection_prefs.py from typing import Optional from pip._internal.models.format_control import FormatControl class SelectionPreferences: """ Encapsulates the candidate selection preferences for downloading and installing files. """ __slots__ = [ "allow_yanked", "allow_all_prereleases", "format_control", "prefer_binary", "ignore_requires_python", ] # Don't include an allow_yanked default value to make sure each call # site considers whether yanked releases are allowed. This also causes # that decision to be made explicit in the calling code, which helps # people when reading the code. def __init__( self, allow_yanked: bool, allow_all_prereleases: bool = False, format_control: Optional[FormatControl] = None, prefer_binary: bool = False, ignore_requires_python: Optional[bool] = None, ) -> None: """Create a SelectionPreferences object. :param allow_yanked: Whether files marked as yanked (in the sense of PEP 592) are permitted to be candidates for install. :param format_control: A FormatControl object or None. Used to control the selection of source packages / binary packages when consulting the index and links. :param prefer_binary: Whether to prefer an old, but valid, binary dist over a new source dist. :param ignore_requires_python: Whether to ignore incompatible "Requires-Python" values in links. Defaults to False. """ if ignore_requires_python is None: ignore_requires_python = False self.allow_yanked = allow_yanked self.allow_all_prereleases = allow_all_prereleases self.format_control = format_control self.prefer_binary = prefer_binary self.ignore_requires_python = ignore_requires_python	1.86 KB	2026-01-07 23:39
📄 target_python.py import sys from typing import List, Optional, Tuple from pip._vendor.packaging.tags import Tag from pip._internal.utils.compatibility_tags import get_supported, version_info_to_nodot from pip._internal.utils.misc import normalize_version_info class TargetPython: """ Encapsulates the properties of a Python interpreter one is targeting for a package install, download, etc. """ __slots__ = [ "_given_py_version_info", "abis", "implementation", "platforms", "py_version", "py_version_info", "_valid_tags", ] def __init__( self, platforms: Optional[List[str]] = None, py_version_info: Optional[Tuple[int, ...]] = None, abis: Optional[List[str]] = None, implementation: Optional[str] = None, ) -> None: """ :param platforms: A list of strings or None. If None, searches for packages that are supported by the current system. Otherwise, will find packages that can be built on the platforms passed in. These packages will only be downloaded for distribution: they will not be built locally. :param py_version_info: An optional tuple of ints representing the Python version information to use (e.g. `sys.version_info[:3]`). This can have length 1, 2, or 3 when provided. :param abis: A list of strings or None. This is passed to compatibility_tags.py's get_supported() function as is. :param implementation: A string or None. This is passed to compatibility_tags.py's get_supported() function as is. """ # Store the given py_version_info for when we call get_supported(). self._given_py_version_info = py_version_info if py_version_info is None: py_version_info = sys.version_info[:3] else: py_version_info = normalize_version_info(py_version_info) py_version = ".".join(map(str, py_version_info[:2])) self.abis = abis self.implementation = implementation self.platforms = platforms self.py_version = py_version self.py_version_info = py_version_info # This is used to cache the return value of get_tags(). self._valid_tags: Optional[List[Tag]] = None def format_given(self) -> str: """ Format the given, non-None attributes for display. """ display_version = None if self._given_py_version_info is not None: display_version = ".".join( str(part) for part in self._given_py_version_info ) key_values = [ ("platforms", self.platforms), ("version_info", display_version), ("abis", self.abis), ("implementation", self.implementation), ] return " ".join( f"{key}={value!r}" for key, value in key_values if value is not None ) def get_tags(self) -> List[Tag]: """ Return the supported PEP 425 tags to check wheel candidates against. The tags are returned in order of preference (most preferred first). """ if self._valid_tags is None: # Pass versions=None if no py_version_info was given since # versions=None uses special default logic. py_version_info = self._given_py_version_info if py_version_info is None: version = None else: version = version_info_to_nodot(py_version_info) tags = get_supported( version=version, platforms=self.platforms, abis=self.abis, impl=self.implementation, ) self._valid_tags = tags return self._valid_tags	3.77 KB	2026-01-07 23:39
📄 wheel.py """Represents a wheel file and provides access to the various parts of the name that have meaning. """ import re from typing import Dict, Iterable, List from pip._vendor.packaging.tags import Tag from pip._internal.exceptions import InvalidWheelFilename class Wheel: """A wheel file""" wheel_file_re = re.compile( r"""^(?P<namever>(?P<name>.+?)-(?P<ver>.?)) ((-(?P<build>\d[^-]?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?) \.whl\|\.dist-info)$""", re.VERBOSE, ) def __init__(self, filename: str) -> None: """ :raises InvalidWheelFilename: when the filename is invalid for a wheel """ wheel_info = self.wheel_file_re.match(filename) if not wheel_info: raise InvalidWheelFilename(f"{filename} is not a valid wheel filename.") self.filename = filename self.name = wheel_info.group("name").replace("_", "-") # we'll assume "_" means "-" due to wheel naming scheme # (https://github.com/pypa/pip/issues/1150) self.version = wheel_info.group("ver").replace("_", "-") self.build_tag = wheel_info.group("build") self.pyversions = wheel_info.group("pyver").split(".") self.abis = wheel_info.group("abi").split(".") self.plats = wheel_info.group("plat").split(".") # All the tag combinations from this file self.file_tags = { Tag(x, y, z) for x in self.pyversions for y in self.abis for z in self.plats } def get_formatted_file_tags(self) -> List[str]: """Return the wheel's tags as a sorted list of strings.""" return sorted(str(tag) for tag in self.file_tags) def support_index_min(self, tags: List[Tag]) -> int: """Return the lowest index that one of the wheel's file_tag combinations achieves in the given list of supported tags. For example, if there are 8 supported tags and one of the file tags is first in the list, then return 0. :param tags: the PEP 425 tags to check the wheel against, in order with most preferred first. :raises ValueError: If none of the wheel's file tags match one of the supported tags. """ return min(tags.index(tag) for tag in self.file_tags if tag in tags) def find_most_preferred_tag( self, tags: List[Tag], tag_to_priority: Dict[Tag, int] ) -> int: """Return the priority of the most preferred tag that one of the wheel's file tag combinations achieves in the given list of supported tags using the given tag_to_priority mapping, where lower priorities are more-preferred. This is used in place of support_index_min in some cases in order to avoid an expensive linear scan of a large list of tags. :param tags: the PEP 425 tags to check the wheel against. :param tag_to_priority: a mapping from tag to priority of that tag, where lower is more preferred. :raises ValueError: If none of the wheel's file tags match one of the supported tags. """ return min( tag_to_priority[tag] for tag in self.file_tags if tag in tag_to_priority ) def supported(self, tags: Iterable[Tag]) -> bool: """Return whether the wheel is compatible with one of the given tags. :param tags: the PEP 425 tags to check the wheel against. """ return not self.file_tags.isdisjoint(tags)	3.42 KB	2026-01-07 23:39

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