Ivan Levkivskyi added the comment: I tried and all tests pass on 3.7a also with prior import of typing.
A larger fix is not _necessary_, but I would _prefer_ to go with the option 4 that I proposed above, i.e.: Instead of special casing abc and functools in __subclasshook__ in typing via sys._getframe, I would rather add small changes to abc and functools (they should use __origin__ in subclass checks). In general, I think we should document __origin__, it could be useful at runtime (especially that we prohibit certain things like class checks for parameterized generics). ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28339> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
