mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Parametrized type alias union of callables unsubstitued using unannotated functions
- Generic and __new__ with returns to a subclass produces incorrect Union inference
- Unpack iterable class to its declared type for `__iter__`
- 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
- Docs
- Python not yet supported