uv: Python packaging in Rust (via) "uv is an extremely fast Python package installer and resolver, written in Rust, and designed as a drop-in replacement for pip and pip-tools workflows."
From Charlie Marsh and Astral, the team behind Ruff, who describe it as a milestone in their pursuit of a "Cargo for Python".
Also in this announcement: Astral are taking over stewardship of Armin Ronacher's Rye packaging tool, another Rust project.
uv
is reported to be 8-10x faster than regular pip
, increasing to 80-115x faster with a warm global module cache thanks to copy-on-write and hard links on supported filesystems - which saves on disk space too.
It also has a --resolution=lowest
option for installing the lowest available version of dependencies - extremely useful for testing, I've been wanting this for my own projects for a while.
Also included: uv venv
- a fast tool for creating new virtual environments with no dependency on Python itself.
Recent articles
- Large Language Models can run tools in your terminal with LLM 0.26 - 27th May 2025
- Highlights from the Claude 4 system prompt - 25th May 2025
- Live blog: Claude 4 launch at Code with Claude - 22nd May 2025