Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
PyNumber_Index() now always returns an instance of int. - If the argument is a direct int then return it. - If it is a subclass of int then return a direct int copy. - Otherwise call type(obj).__index__(obj) - If a direct int, return it - If a subclass of int, raise a DeprecationWarning and return a direct int copy - If not an int, raise TypeError If we go in this direction we should add a DeprecationWarning for __str__() returning not direct str. I am not sure that it is right. It adds a burden on authors of special methods to always convert the result to the corresponding direct type, while this conversion can silently (and more efficiently) be performed in the interpreter core. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue17576> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
