mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Empty dictionary argument is incompatible with union of mappings
- Parameterized protocol structure ignored as argument
- Class factory with `type[TypeVar]` with upper bound not checked correctly (false positive)
- Do not raise `unused-awaitable` when it's already `await`ed
- Support instantiation of type[SomeTypeVar] -> SomeTypeVar
- mypy rejects unpacking into same variable
- Spurious errors on the builtin open when running mypy on mypy
- Failing to infer type upon concretization of generic (inferred <nothing>)
- False positive in return type on a decorator factory whose results can decorate functions or coroutines
- appending `#type:ignore` to an import does more than skipping analyzing the import
- Docs
- Python not yet supported