mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- mypy cannot decide if a cast is necessary or redundant
- `in` operator error with Generator
- Callable vs Protocol with `self` argument
- `!= (None, None)` Narrowing only in else branch
- [stubtest] False positive involving overloaded function with default argument for parameter with type variable
- `x in y` doesn't report errors when `x` is not `str` and `y: union | involving | str`
- Support `@deprecated` on overloaded property setters
- Incorrect type narrowing when swapping variables after isinstance check
- Union changes in Python 3.14 crash mypy
- arg-type in chained dict.get
- Docs
- Python not yet supported