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Title: Fix error message when subclassing TypeVarTuple by JanEricNitschke · Pull Request #679 · python/typing_extensions · GitHub

Open Graph Title: Fix error message when subclassing TypeVarTuple by JanEricNitschke · Pull Request #679 · python/typing_extensions

X Title: Fix error message when subclassing TypeVarTuple by JanEricNitschke · Pull Request #679 · python/typing_extensions

Description: Issue discovered by running CPython 3.12 test_typing.py on typing_extensions: https://github.com/JanEricNitschke/typing_extensions/actions/runs/17692936537/job/50288896717#step:7:120 Test from here...

Open Graph Description: Issue discovered by running CPython 3.12 test_typing.py on typing_extensions: https://github.com/JanEricNitschke/typing_extensions/actions/runs/17692936537/job/50288896717#step:7:120 Test from here...

X Description: Issue discovered by running CPython 3.12 test_typing.py on typing_extensions: https://github.com/JanEricNitschke/typing_extensions/actions/runs/17692936537/job/50288896717#step:7:120 Test from here...

Opengraph URL: https://github.com/python/typing_extensions/pull/679

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