INADA Naoki added the comment: __contains__ is required for Container. So there is a clear reason to define it.
Additionaly, http://docs.python.org/3.3/reference/datamodel.html#object.__contains__ doesn't discourage to implement slower pure-python method. In case of __reversed__, I can't find a reason to require it and reference discourage it explicitly. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue16712> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
