ty: An extremely fast Python type checker and language serverTL;DR: ty is an extremely fast Python type checker and language server, written in Rust, and designed as an alternative to tools like mypy, Pyright, and Pylance. Today, we're announcing the Beta release of ty. We now use ty exclusively in our own projects and are ready to recommend it to motivated users for production use. At Astral, we build high-performance developer tools for the Python ecosyst
