32 items tagged “uv”
2024
uv pip install --exclude-newer example
(via)
A neat new feature of the uv pip install command is the --exclude-newer option, which can be used to avoid installing any package versions released after the specified date.
Here's a clever example of that in use from the typing_extensions packages CI tests that run against some downstream packages:
uv pip install --system -r test-requirements.txt --exclude-newer $(git show -s --date=format:'%Y-%m-%dT%H:%M:%SZ' --format=%cd HEAD)
They use git show to get the date of the most recent commit (%cd means commit date) formatted as an ISO timestamp, then pass that to --exclude-newer.
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.