Andrew Barnert added the comment: > Also, if I understand your problem, Container would also be susceptible in > theory
You're right, but not in the details. Being iterable (whether via __iter__ or via the old-style sequence protocol) makes you a container. But, again, false negatives for Container aren't a problem. But blocking that by setting __contains__ = None makes you a Container but not a container, the same kind of false positive as #25864. That's exactly why I split off this bug from that one--that one only fixes __iter__ and __reversed__, but it's possible that a more general solution is needed. (Or, of course, maybe we don't need anything more general, we just need to expand it to __iter__, __reversed__, and __contains__.) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25958> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
