ty Ultra-Fast Python Type Checker and Language Server
ty is an extremely fast Python type checker and language server written in Rust by Astral, the creators of Ruff and uv. It delivers 10-100x faster type checking than mypy or Pyright with comprehensive diagnostics, incremental analysis, and first-class editor integrations.
Installation
Requirements and caveats from upstream:
Basic usage or getting-started notes:
Run ty with uvx to get started quickly:
shell
uvx ty check
Source: https://github.com/astral-sh/ty
Extracted from upstream docs: https://raw.githubusercontent.com/astral-sh/ty/HEAD/README.md