mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- TypedDict -> dict compatibility
- no error when setting `init=False` on `Final` field in dataclass
- no error when using `field` outside of a `dataclass`
- generics used in type aliases incorrectly cause `Expression type contains "Any"` error
- Confusing error when subclassing `var.__class__`
- dmypy: Provide an option to make dmypy quieter.
- `singledispatch.register` doesn't typecheck registration of generic functions
- mypy doesnt use unitest.TestCase.assertIsInstance checks for type narrowing
- super() is analyzed differently from super(C, self) in generic subclass context
- lambda input type is `Any` when function type is a union, and no error when lambda does not satisfy any of the types in the union
- Docs
- Python not yet supported