mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Can't infer T where Optional[T] is Optional[MyUnion]
- Need plugin hooks for functions/methods
- AssertionError when using double underscore in keyword-only argument
- Subclass method parameter names are not checked against superclass
- Generic method returning nested class
- Clarification of `properly subclassable class` in NewType
- isinstance(x, Tuple) fails when equivalent expressions don't
- Protocols for types with fields that can be verified
- Exception variable can leak to other scopes causing strange error messages
- Announcement issue for plugin API changes
- Docs
- Python not yet supported