mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Test stub files against real code
- generic class attributes with unions become object on subclasses
- Assigning a variable to the result of an untyped method removes any existing type constraints
- warn_unused_ignores is too sensitive: false positives
- Better error message for incompatible assignment to method
- Support both warnings and errors
- Disallow access to instance variable via class
- Reject bound covariant type variable in an argument type
- [Feature Request] Provide an API to get the type of the expressions in the AST
- Document or explain "<nothing>"
- Docs
- Python not yet supported