[docs] [issue17576] PyNumber_Index() is not int-subclass friendly (or operator.index() docos lie)

Serhiy Storchaka added the comment: And yet one nitpick. For int subclasses which doesn't overload the __int__ method the patch calls default int.__int__ which creates a copy of int object. This is redundant in PyLong_As* functions because they only extract C int value and drop Python int object. So we can use int subclass object itself as good as int object. ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue17576> _______________________________________