mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Type narrowing not found for combination of overloaded optional argument and null guard
- Common type in container is determined using constructor args
- mypy does not recognize tuple unpacking syntax for TypeVars.
- Analysis time binding of restricted `Generic`s
- no error when unhashable object in dict
- isinstance check widens type
- generic fails to narrow, something to do with using `NoReturn` on contravariant generic
- Mypy doesn't seem to use types from @overload-ed __sub__
- mypyc: dataclasss __annotations__ are wrong
- Mypy not resolving protocol class as callable in check_reverse_op_method (and possible fix)
- Docs
- Python not yet supported