Raymond Hettinger <raymond.hettin...@gmail.com> added the comment:
> it was added as a concrete method, That still amounts to making it a requirement for all numeric classes, even ones that predate this patch. So existing classes that are registered will no longer comply with the ABC. In general, it's hard to add methods to ABCs because an ABC makes a promise about what methods are available in any class registered to that ABC. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue26680> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
