from zipfile import ZipFile
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from pip._internal.distributions.base import AbstractDistribution
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from pip._internal.utils.typing import MYPY_CHECK_RUNNING
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from pip._internal.utils.wheel import pkg_resources_distribution_for_wheel
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if MYPY_CHECK_RUNNING:
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from pip._vendor.pkg_resources import Distribution
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from pip._internal.index.package_finder import PackageFinder
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class WheelDistribution(AbstractDistribution):
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"""Represents a wheel distribution.
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This does not need any preparation as wheels can be directly unpacked.
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"""
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def get_pkg_resources_distribution(self):
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# type: () -> Distribution
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"""Loads the metadata from the wheel file into memory and returns a
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Distribution that uses it, not relying on the wheel file or
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requirement.
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"""
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# Set as part of preparation during download.
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assert self.req.local_file_path
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# Wheels are never unnamed.
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assert self.req.name
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with ZipFile(self.req.local_file_path, allowZip64=True) as z:
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return pkg_resources_distribution_for_wheel(
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z, self.req.name, self.req.local_file_path
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)
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def prepare_distribution_metadata(self, finder, build_isolation):
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# type: (PackageFinder, bool) -> None
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pass
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