File Content: base.py # The following comment should be removed at some point in the future. # mypy: disallow-untyped-defs=False import abc from pip._vendor.six import add_metaclass @add_metaclass(abc.ABCMeta) class AbstractDistribution(object): """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): super(AbstractDistribution, self).__init__() self.req = req @abc.abstractmethod def get_pkg_resources_distribution(self): raise NotImplementedError() @abc.abstractmethod def prepare_distribution_metadata(self, finder, build_isolation): raise NotImplementedError() Submit