uv

An ultra-fast Python package and project manager written in Rust, designed to replace pip, pip-tools, and virtualenv.

Uv delivers a 10x to 100x performance increase over traditional tools by leveraging a global module cache and a high-performance resolver. It functions as a single static binary that handles everything from package installation to workspace management without requiring a pre-existing Python runtime. Astral (the team behind Ruff) built uv to solve the dependency bottleneck: it installs 1000+ packages in seconds and provides a drop-in compatible interface for existing workflows. Use it to lock dependencies with uv.lock or run scripts with instant environment synchronization.

https://astral.sh/uv