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__init__.py
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__pycache__
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candidate.py
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direct_url.py
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format_control.py
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index.py
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installation_report.py
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link.py
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scheme.py
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search_scope.py
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selection_prefs.py
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target_python.py
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wheel.py
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Editing: 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>[^\s-]+?)-(?P<ver>[^\s-]*?)) ((-(?P<build>\d[^-]*?))?-(?P<pyver>[^\s-]+?)-(?P<abi>[^\s-]+?)-(?P<plat>[^\s-]+?) \.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. """ try: return next(i for i, t in enumerate(tags) if t in self.file_tags) except StopIteration: raise ValueError() 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)
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