mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Add new flag for warning about instantiating classes with declared but uninitialized attributes
- Mysterious type creation
- Extend `redundant-expr` to type narrowing assertions
- Recognize list of constant values as a list of str.
- isinstance on runtime-checkable protocols does not correctly narrow unions inferred by TypeGuard
- `__match_args__` must catch non-existent attributes
- Property return type not inferred when using `field_name = property(func)`
- mypy should warn about list invariance when method return types are incompatible with a supertype
- False positive (and puzzling message) with union types and callables
- Not None narrowing doesn't always work for nested field with list comprehensions
- Docs
- Python not yet supported