Serhiy Storchaka added the comment: Therefore my guess was true. There is a bug in Cython. It creates classes that can't be correctly unpickled or copied.
The question is wherever we should replace TypeError with a warning in maintained releases, or remove this check at all? Here is a patch against 3.5 that replaces TypeError with a warning. ---------- stage: resolved -> patch review versions: -Python 3.6 Added file: http://bugs.python.org/file41582/pickle_restrictions_warning-3.5.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue22995> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
