mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- (🐞) `|` operator union assigned to a variable inferred as `_SpecialForm`, not `UnionType`
- Support for Union[*TypeVarTuple]
- Exhaustiveness checks (assert_never) don't work with 2-tuple of enums
- Wrong test result for default values of Mapping arguments
- Support name mangling
- mypy treats Enum's __call__ as calling __init__
- A decorator implementing the descriptor protocol is incorrectly regarded read-only
- Type hint `__lt__` as `(self, other: Self) -> bool` makes mypy think that `__le__` is not supported.
- Type alias for a union of two @runtime_checkable Protocols triggers "Cannot use parameterized generics in instance checks"
- dmypy Suggest assertion error in `bind_function_type_variables`
- Docs
- Python not yet supported