awslambda.py 文件源码

def _requirements(self, package_name):
        def _get_package(_package_name):
            candidates = [p for p in pip.get_installed_distributions() if p.project_name == _package_name]
            if not candidates:
                raise ValueError('No package "{}"'.format(package_name))
            return candidates[0]

        package = _get_package(package_name)
        result = set(name for name in package._get_metadata("top_level.txt") if '/' not in name)
        for requirement in package.requires():
            result |= self._requirements(requirement.project_name)
        return result