SMRTR ProgrammingDec 16, 2025Daily.dev

ty: An extremely fast Python type checker and language server

SMRTR summary

Astral announces the Beta release of ty, an extremely fast Python type checker and language server written in Rust. ty is 10-60x faster than mypy and Pyright without caching, and hundreds of times faster during incremental updates in editors. The tool features advanced type checking capabilities, superior diagnostic messages, and integrates with VS Code while supporting the Language Server Protocol.

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