mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Covariance is not inferred for NamedTuple and frozen Dataclasses
- Support of `partial` is too fragile and easy to fool
- Case of generic decorators not working on generic callables (ParamSpec)
- Type narrowing and PEP 634 pattern matching
- sorted() loses information about namedtuple elements
- Potential issue with dmypy file save status not being updated properly
- Referencing name not defined yet allowed by mypy, yet error at runtime.
- Document `--output=json` CLI option
- Add a new output format option to print errors as GitHub Actions Workflow commands
- "Overloaded function implementation does not accept all arguments" error when using TypeVar with restricted types.
- Docs
- Python not yet supported