On Fri, Oct 7, 2016 at 3:52 PM, Ivan Levkivskyi <levkivs...@gmail.com> wrote: > I have a question about the registration of builtins. Currently, typing.py > contains this line: > > ByteString.register(type(memoryview(b''))) > > But there are two test lines in test_collections.py > > self.assertNotIsInstance(memoryview(b""), ByteString) > self.assertFalse(issubclass(memoryview, ByteString)) > > This looks like a contradiction. Which one is right? > Should these tests be removed or the registration in typing.py?
Looks like the registration is in error. The stubs (and hence mypy) don't consider memoryview consistent with ByteString. -- --Guido van Rossum (python.org/~guido) _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
