Substitute type variables in return type of static methods#16670
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`add_class_tvars` correctly instantiates type variables for class methods but not for static methods. Check if the analyzed member is a static method in `analyze_class_attribute_access` and substitute the type variable in the return type in `add_class_tvars` accordingly. Fixes python#16668.
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Diff from mypy_primer, showing the effect of this PR on open source code: Expression (https://github.com/cognitedata/Expression)
- tests/test_parser.py:243: error: Cannot infer type argument 1 of "pipe" [misc]
- tests/test_parser.py:245: error: Argument 2 to "pipe" has incompatible type "Callable[[Iterable[_TSource]], Block[_TSource]]"; expected "Callable[[list[Parser[Expression]]], Any]" [arg-type]
trio (https://github.com/python-trio/trio)
+ src/trio/_core/_multierror.py:247: error: Unused "type: ignore" comment [unused-ignore]
mongo-python-driver (https://github.com/mongodb/mongo-python-driver)
+ bson/json_util.py:324: error: Unused "type: ignore" comment [unused-ignore]
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Contributor
Author
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A little weird that this hit a recursion limit for daemons on Windows in the CI. Just tried |
Member
It's a stdlib bug in shutil.py that occasionally causes flakes in our test suite on Windows on older Python versions. Not caused by your PR; nothing to worry about |
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add_class_tvarscorrectly instantiates type variables in the return type for class methods but not for static methods. Check if the analyzed member is a static method inanalyze_class_attribute_accessand substitute the type variable in the return type inadd_class_tvarsaccordingly.Fixes #16668.