config.py 文件源码

def _is_same_dep(cls, dep1, dep2):
        """
        Returns True if both dependency definitions refer to the
        same package, even if versions differ.
        """
        dep1_name = pkg_resources.Requirement.parse(dep1).project_name
        try:
            dep2_name = pkg_resources.Requirement.parse(dep2).project_name
        except pkg_resources.RequirementParseError:
            # we couldn't parse a version, probably a URL
            return False
        return dep1_name == dep2_name