mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- no error when extending class that has polymorphic self with a non-polymorphic self
- Mapping an iterable function to string comes up with incompatible type error
- "Dynamic metaclass not supported" false positive on generics
- `isinstance` doesn't work on type aliases that use a union
- TypeVar resolved to a concrete type using isinstance causes mypy to become confused at the equivalence
- Recognize different setter type for properties.
- 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.
- Allow PEP 604 type aliases to be used in runtime context.
- Docs
- Python not yet supported