mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- module name assumed is __main__ for .pyw files on windows
- torch-nn-functional-mypy-bug-when-torchvision-installed
- False positive when using `Self` as the return type with multiple base classes
- Mypy cannot guess callable return type (`Tuple[Type[T], ...] -> T`)
- `functools.reduce` over sets: empty set not accepted without annotation
- `functools.reduce` over sets becomes unacceptable when used in a larger expression
- assignment to `_` inside a function incorrectly becomes `Any`
- constrained TypeVar and star operator incompatible type
- `--untyped-calls-exclude` does not exclude some packages/libraries
- new generics should be inferred as covariant instead of invariant on frozen dataclasses
- Docs
- Python not yet supported