Introducing Pyrefly: A fast type checker and IDE experience for Python, written in Rust 103 points BeamMeUpBiscotti 2025-05-15 23:09:58 12 comments View on Reddit ↗ Blog post: https://engineering.fb.com/2025/05/15/developer-tools/introducing-pyrefly-a-new-type-checker-and-ide-experience-for-python/ Podcast: https://engineering.fb.com/2025/05/15/developer-tools/open-sourcing-pyrefly-a-faster-python-type-checker-written-in-rust/ Source code: https://github.com/facebook/pyrefly
