mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Allow class variables in subsubclasses to only match base class type
- Strange type expected from inferred dict
- False unreachable warning on match statement
- `no-untyped-call` false positive when calling lambda with no input parameters
- `dmypy` - poor performance when a lot of possibly unrelated errors
- Allow any type to be returned by `__new__`
- Plugging a contravariant Typevar into an invariant generic can make mypy miss problems
- Custom `__iter__` method yields false positive when used with star args (`*`)
- (🐞) No error for invalid `super` call inside an inner function
- Generic Type[T] function argument rejected as base class
- Docs
- Python not yet supported