mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- False positive with disallow-any-explicit and `...` in `Callable` in bound of type var
- false negative with underscore on parameter name
- Support 'on'/'off' for type ignores
- special support for types from importlib.import_module and pkgutil.resolve_name with Literal arguments
- __new__ type annotations have unexpected behavior in some cases
- Cannot ignore type errors in multiline strings
- Daemon support for --follow-imports=silent
- Method overloads ignored when dispatched via protocols
- Regression: mypy thinks line is unreachable in 0.780 upwards, while (correctly) not showing a warning in 0.770 and below
- Support disallow_untyped_decorators = false option for 3rd party libraries
- Docs
- Python not yet supported