Astral
@astral_sh
High-performance developer tools for the Python ecosystem, starting with Ruff, an extremely fast Python linter, written in Rust.
Today, we're shipping a series of features that move uv beyond a pip alternative, and into an end-to-end solution for managing Python projects, command-line tools, single-file scripts, and even Python itself. A single, unified tool. Like Cargo, for Python. It's very fast.
The uv build backend is now stable, and considered ready for production use. An alternative to setuptools, hatchling, etc. for pure Python projects, with a focus on good defaults, user-friendly error messages, and performance. When used with uv, it's 10-35x faster.
You can now install the latest Python 3.14 alpha with uv
Huge news: initial uv support just landed in IntelliJ's main branch 👀
uv—you've probably heard of it, but are you using it for... pretty much everything? Save time and speedup your workflows (in under 10 minutes) in my latest video. 00:00 - Introduction to uv 00:38 - Installing Python versions with uv 01:14 - Project initialization and…
If a package fails to build during resolution or installation, uv will now tell you _why_ that package was included in the first place. I think this is such a cool error-message improvement.
Powered by uv.
Python tools and prompts are here! We’re excited to bring the power of functions to the Python ecosystem. Just use braintrust push to sync your tool and prompt code to the Braintrust UI.
I went on @pybites to talk about Ruff, uv, open source, and more. youtube.com/watch?v=byynvd…
Pumped to add a few new commitments to the Astral OSS Fund for Q4: 1. @brettsky (Python standards, especially the lockfile PEP right now!) 2. @djco (rustls et al) 3. @Ofekmeister (Python packaging) 4. @PredragGruevski (cargo-semver-checks) 5. Arpad Borsos (rust-cache)
A Ruff (@astral_sh) extension is now available in the extensions store. To install the Ruff, open the command palette, search for `zed: extensions`, and then type "Ruff" in the extensions view search bar. See the release notes for more details on configuration and usage.
Astral is starting a fund to support open source projects and maintainers 💝 Thank you @astral_sh for your support of open source, the PSF, and the #python community, especially @pypi and CPython! x.com/astral_sh/stat…
Announcing the Astral OSS Fund. We're giving > $3,000 per Astral team member per year to open source projects, maintainers, and foundations, inspired by @getsentry's OSS Pledge. astral.sh/blog/astral-os…
Announcing the Astral OSS Fund. We're giving > $3,000 per Astral team member per year to open source projects, maintainers, and foundations, inspired by @getsentry's OSS Pledge. astral.sh/blog/astral-os…
It's @carljm week! Welcome to Astral! 🚀🚀🚀 Carl joins us from Meta / Instagram where he worked on the Cinder JIT compiler among so much else. I was a big fan of his work from afar and that admiration only grew after getting to know him. Thrilled he's now a coworker :)
Ruff v0.3.0 is out now, and includes the stable release of the Ruff formatter. astral.sh/blog/ruff-v0.3…
Astral 🤝 @axodotdev
uv's standalone installers are powered by cargo-dist from @axodotdev. If you're building CLI tools, I'd strongly recommend it. cargo-dist is great, and the @axodotdev team are just complete and utter domain experts.
uv 0.1.4 is out now 😎 curl -LsSf astral.sh/uv/install.sh | sh
Announcing uv: an extremely fast Python package installer and resolver, written in Rust. uv is designed as a drop-in replacement for pip, pip-tools, and virtualenv. astral.sh/blog/uv
Ruff v0.1.8 is out now. Format Python doctests and Python snippets within in docstrings, with support for both Markdown and reStructuredText. Thanks to @burntsushi5.

We're excited to announce a new way to ✨edit data✨ for AI models. We use the @astral_sh ruff formatter to edit code in the @GlaiveAI dataset to align a coding assistant to our style. Blog: docs.lilacml.com/blog/curate-co… Video: youtu.be/bw8JUpAOSZQ