mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Use alias names in error messages
- Unions with invalid arguments are still allowed
- Detect if required string literal escapes are missing from a type
- Adding variable annotation causes incompatible type when Optional and TypeVars are used
- Underspecified type variables should not infer UninhabitedType
- Generate a warning/error on assigning values of type NoReturn
- Support @no_type_check for classes
- Fine-grained: Nested class causes extra triggers to fire
- @overload is required when using @dispatch
- Allow type aliases be used as variables
- Docs
- Python not yet supported