mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Subclass default overrides more general baseclass type hint
- Invalid `instance.__slots__` type revealed
- Non-overlapping identity check when left operand is not optional and right operand is None
- Tests don't pass if MYPY_CACHE_DIR is set
- No error for singledispatch on generic types
- NoReturn return type with singledispatch causing weird errors
- Speed up ArgKind methods by changing them into top-level functions
- Regression with type narrowing of bool
- Possible regression: a niche case in expression type detection
- Document `Required[]` type in `TypedDict`
- Docs
- Python not yet supported