---
title: "ty is already very fast for a Python type checker. It checked around 800 files in our backend..."
date: 2025-05-16
canonical: https://solmaz.io/x/1923319846420222461/
x_url: https://x.com/onusoz/status/1923319846420222461
license: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
---

ty is already very fast for a Python type checker. It checked around 800 files in our backend repo in around 2-3 seconds

uvx ty check > /tmp/ty_log.txt  3.46s user 0.79s system 208% cpu 2.038 total

*Quotes a post by another author (https://x.com/i/status/1922333022658978089); its text is omitted here because it is not covered by this site's license.*