Mercurial > repos > shellac > sam_consensus_v3
view env/lib/python3.9/site-packages/pip/_internal/distributions/base.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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import abc from pip._internal.utils.typing import MYPY_CHECK_RUNNING if MYPY_CHECK_RUNNING: from typing import Optional from pip._vendor.pkg_resources import Distribution from pip._internal.index.package_finder import PackageFinder from pip._internal.req import InstallRequirement class AbstractDistribution(metaclass=abc.ABCMeta): """A base class for handling installable artifacts. The requirements for anything installable are as follows: - we must be able to determine the requirement name (or we can't correctly handle the non-upgrade case). - for packages with setup requirements, we must also be able to determine their requirements without installing additional packages (for the same reason as run-time dependencies) - we must be able to create a Distribution object exposing the above metadata. """ def __init__(self, req): # type: (InstallRequirement) -> None super().__init__() self.req = req @abc.abstractmethod def get_pkg_resources_distribution(self): # type: () -> Optional[Distribution] raise NotImplementedError() @abc.abstractmethod def prepare_distribution_metadata(self, finder, build_isolation): # type: (PackageFinder, bool) -> None raise NotImplementedError()