Antoine Pitrou added the comment: Another problem is what happens when an implementation uses non-"virtual" inheritance:
>>> issubclass(collections.UserDict, collections.abc.Mapping) True >>> collections.UserDict in collections.abc.Mapping.get_virtual_subclasses(True) False IOW, I think this get_virtual_subclasses() proposal is too low-level to be commonly useful, since it depends on implementation details (whether subclassing is direct or not, whether registering is implicit or explicit). ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue18737> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
