Astral's ty, a Rust-based Python type checker, has entered beta with extremely fast incremental updates. It can be installed via uv or as a VS Code extension, with a stable release planned for 2026. Built around incrementality, ty selectively re-runs computations when code changes, making live updates significantly faster than alternatives like Mypy, Pyright, and Pylance. The tool features Rust-inspired diagnostic messages that provide context across multiple files and can run orders of magnitude faster than other Rust-based language servers on large projects.
Sort: