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"""Represents a wheel file and provides access to the various parts of the name that have meaning. """ import re from pip._vendor.packaging.tags import Tag from pip._internal.exceptions import InvalidWheelFilename from pip._internal.utils.typing import MYPY_CHECK_RUNNING if MYPY_CHECK_RUNNING: from typing import List class Wheel(object): """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): # type: (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( "{} is not a valid wheel filename.".format(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): # type: () -> 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): # type: (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 supported(self, tags): # type: (List[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)