On Sun, Jul 2, 2017 at 4:54 AM, Steven D'Aprano <st...@pearwood.info> wrote:

> I think that the current status is that the MyPy folks, including Guido,
> consider that it *is* reasonable to ask these questions for the purpose
> of introspection, but issubclass and isinstance are not the way to do
> it.
>

That may have once been the viewpoint of the developers of typing/MyPy,
though it seems to have changed. The current view is that this should be
implemented in a third party library. Further discussion is here
<https://github.com/ilevkivskyi/typing_inspect/issues/2>.

- Lucas
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