Fix crash for callable with *args and suffix against Any by ilevkivskyi · Pull Request #18781 · python/mypy (original) (raw)

Fixes #18780

Fix is trivial: handle a missing case. Note I re-use flatten_nested_tuples() out of laziness. In theory, there should be at most one level of nesting at this point, after which we should put an assert (and IIRC we do something like this in other places). But I think it is not worth the effort here, as this is a quite niche edge case anyway.