Fix crash with type alias to Callable[[Unpack[Tuple[Any, ...]]], Any]
#16541
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JukkaL
reviewed
Dec 7, 2023
mypy/expandtype.py
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| fallback = var_arg_type.partial_fallback | ||
| elif isinstance(var_arg_type, Instance): | ||
| # We have something like Unpack[Tuple[Any, ...]] | ||
| expanded_items = list(var_arg_type.args) |
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Should we preserve this as an Instance? Are we converting a variable-length tuple to a single-item tuple?
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Thanks, I see what you mean (I think)! Does e4d02a4 address this?
I'm surprised no tests failed as a result of this.
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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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Fixes #16533