mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Fix isinstance narrowing for classes with __getattr__ returning Any
- Fix isinstance on namedtuple type aliases
- Type-narrowing of a list item for an inline list multiplied with a type-guard on said item
- `isinstance` doesn't work with `TypeAlias` for classes inherited from `NamedTuple`
- Incremental mode does extra work with --follow-imports=skip
- Mypy suggests `types-Pygments` but `--install-types` doesn't install it
- TypeForm does not overlap with classes that represent special forms at runtime.
- Generic `NamedTuple` does appear attribute-less in `match` statements, and member type information is erased
- Classes inheriting from `NamedTuple` can't have `ParamSpec` as generic type parameter
- subtle cache corruption when using dataclass transform leading to `Cannot determine type of "<my-dataclass-transform>" [has-type]` and a big complicated codebase (Pomodouroboros)
- Docs
- Python not yet supported