Expand TypeVarTuple default (PEP 696) #16851
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JelleZijlstra
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cdce8p
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| # WARNING: do not increase this number unless absolutely necessary, | ||
| # and you understand what you are doing. | ||
| ALLOWED_GET_PROPER_TYPES = 8 | ||
| ALLOWED_GET_PROPER_TYPES = 9 |
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@JelleZijlstra The test here just counts all get_proper_type calls inside expandtype. I believe the change still makes sense and is necessary to be able to compare the type inside Unpack. Furthermore, it's guarded by the isinstance check so the performance penalty should probably be minimal. Let me know what you think.
No other test case so far would reach that, only the new TypeVarTuple default ones.
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According to mypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅ |
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Small change to fix an error when expanding a TypeVarTuple default.
Ref: #14851