packaging.py 文件源码

def run(self):
        option_dict = self.distribution.get_option_dict('pbr')
        if (not self.single_version_externally_managed
                and self.distribution.install_requires):
            _pip_install(
                self.distribution.dependency_links,
                self.distribution.install_requires, self.root,
                option_dict=option_dict)

        return du_install.install.run(self)