mypy
https://github.com/python/mypy
Python
Optional static typing for Python
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- Issues
- Bad error message for covariant overriding of a mutable attribute
- New semanal: Spurious "no binding for nonlocal"
- `Type[]` is missing from the cheatsheet
- Test running dmypy compiled on Windows before a release
- New semantic analyzer: Namespace package with __init__.py breaks analysis
- automatic Literal types where possible
- False positive error: Overloaded function signatures 1 and 2 overlap with incompatible return types
- New semantic analyzer: Explain that global variable must be declared at module top level
- New analyzer: Ensure that mangled -redefinition names don't appear in error messages
- New semantic analyzer: some assignments aren't recognized as types if incomplete
- Docs
- Python not yet supported