Ensure instances of CallableType can always be hashed
#12741
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉 |
JelleZijlstra
approved these changes
May 8, 2022
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Description
Trying to hash an instance of
mypy.types.CallableTypewill crash ifself.fallback.typeis aFakeInfo. Apparently this is the case if theCallableTyperepresents a classmethod alternative constructor on aTypedDict. Such alternative-constructor methods aren't currently supported by mypy, but mypy also shouldn't crash if it comes across them.Fixes #5653 (though I'm not 100% sure if this is the best solution).
Test Plan
Test case added to
check-typeddict.test.