mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Final (context-sensitive Literal) doesn't support type narrowing
- Bad interaction between ParamSpec and TypeVarTuple
- Type confusion with protocol attributes when explicitly subclassing protocol
- Configuration to turn off disjoint base checks for custom metaclasses
- attr-defined error is raised when reading default value of an `InitVar` field of a dataclass
- mypy does not understand that in multiple assignment any involved expressions keep their type until the end of all assignments
- [docs] Explain ignoring unused-ignore more explicitly
- mypy flags "overlap between argument names and ** TypedDict items" with total=False
- `tuple[*Ts]` subtype with extra type parameter not gradually assignable to itself
- MyPy fails type narrowing on `not issubclass(X, type[T]): raise`
- Docs
- Python not yet supported