Raymond Hettinger added the comment: Does all of the recognition patterns in typing.py also need to be in collections.abc?
AFAICT, the current collections.abc classes for Sized, Iterable, and Container almost never get used (possibly because they don't provide any useful mixin methods). In the interest of maximizing the ratio of useful ABCs (like MutableMapping), could we defer expanding collections.abc until we've seen some real use cases? ---------- nosy: +rhettinger _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27598> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com