Guido van Rossum <gu...@python.org> added the comment:
Yeah, the runtime isinstance() checking is not required to give the right answer. Also, I believe one of the rules is "if you inherit from a protocol you are deemed to implement it". For methods, abstract methods can (but needn't) be used to indicate mandatory features. For attributes, there is no guarantee. ---------- resolution: -> not a bug stage: -> resolved status: open -> closed _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue43512> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com