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Upper bound example prescribes using join instead of union #4

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JelleZijlstra opened this issue Sep 22, 2023 · 1 comment

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JelleZijlstra commented Sep 22, 2023

The last example in https://peps.python.org/pep-0484/#type-variables-with-an-upper-bound (which is currently in the spec) seems to prescribe using a join instead of a union (cf. https://github.com/python/mypy/issues?q=is%3Aopen+is%3Aissue+label%3Atopic-join-v-union). I think this should be left up to individual type checkers.

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JelleZijlstra commented Dec 11, 2023

python/typing#1538

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