ty

As Python continues to grow in popularity, especially in the AI and data science space, having a strong type system becomes increasingly valuable. Ty is an extremely fast Python type checker and language server written in Rust. It’s part of the Astral ecosystem, which also includes tools like uv and ruff. Ty provides fast feedback and integrates well with common editors such as Visual Studio Code and others. In our experience, using ty alongside other Astral tools simplifies Python development at scale in large organizations. As agentic coding becomes more common, having a deterministic type checker with a fast feedback loop helps catch mistakes early and reduces code review effort on simple errors.