Fix crash on recursive tuple with Hashable #20232
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According to mypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅ |
hauntsaninja
approved these changes
Nov 13, 2025
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Fixes #20227
This is huge pain to reproduce, so I added just some repro as a test. Note the change in
typeops.pyis not required for this fix, but it is a technically correct thing to do that I noticed while looking at this.