Raymond Hettinger added the comment: I don't think this is needed nor do I think that it is a good idea to have a copy() method in the ABCs because they know so little about their concrete underlying class (perhaps the backing store in the filesystem or a database). Besides, a user already has workable alternatives such as creating a new instance and applying |= to populate it.
In general, we don't do API expansions without motivating use cases to guide the design. Also, note that MutableMapping does not have a copy method. ---------- assignee: -> rhettinger resolution: -> rejected status: open -> closed versions: -Python 3.4 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue22101> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
