New submission from Kaleb Barrett <dev.ktbarr...@gmail.com>:
I have type aliases of Unions like so: Request = Union[WriteRequest, ReadRequest] I'd like to be able to use "Request" in an isinstance check rather than having to duplicate the information in a tuple to pass to the check. Currently I get: TypeError: Subscripted generics cannot be used with class and instance checks Seems like Unions could be used here interchangeably with tuples since they mean the same thing in this context. Of course this would only work if the element types are being capable of being used in isinstance checks. ---------- messages: 396658 nosy: ktbarrett priority: normal severity: normal status: open title: Using typing.Union in isinstance checks type: enhancement _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44529> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
