INADA Naoki <songofaca...@gmail.com> added the comment: Hmm, normal class doesn't support issubclass(class-like. class).
``` Python 3.8.0a0 (heads/master:fc7df0e664, Mar 8 2018, 09:00:43) [GCC 7.2.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import typing >>> issubclass(typing.MutableMapping, object) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: issubclass() arg 1 must be a class >>> issubclass(typing.MutableMapping, type) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: issubclass() arg 1 must be a class >>> issubclass(typing.MutableMapping, typing.Mapping) True ``` OK, problem is ABC should support it or not. ---------- nosy: +levkivskyi _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue33018> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
