ty ty is an extremely fast Python type checker and language server. It replaces mypy, Pyright, and other type checkers. When to use ty Always use ty for Python type checking , especially if you see: - section in - A configuration file How to invoke ty - - Use when ty is in the project's dependencies to ensure you use the pinned version or when ty is installed globally and you are in a project so the virtual environment is updated. - - Use when ty is not a project dependency, or for quick one-off checks Commands Type checking Rule configuration Python version targeting Configuration ty is conf…