uninstall.py 文件源码

def run(self, options, args):
        session = self._build_session(options)

        requirement_set = RequirementSet(
            build_dir=None,
            src_dir=None,
            download_dir=None,
            session=session,
        )
        for name in args:
            requirement_set.add_requirement(
                InstallRequirement.from_line(name))
        for filename in options.requirements:
            for req in parse_requirements(filename,
                    options=options, session=session):
                requirement_set.add_requirement(req)
        if not requirement_set.has_requirements:
            raise InstallationError('You must give at least one requirement '
                'to %(name)s (see "pip help %(name)s")' % dict(name=self.name))
        requirement_set.uninstall(auto_confirm=options.yes)