PYX: The next step in Python packaging

Summary

TL;DR: pyx is a Python-native package registry — and the first piece of the Astral platform, our next-generation infrastructure for the Python ecosystem. We think of pyx as an optimized backend for uv: it’s a package registry, but it also solves problems that go beyond the scope of a traditional "package registry”, making your Python experience faster, more secure, and even GPU-aware, both for private packages and public sources (like PyPI and the PyTorch index). pyx is live with our early partners, including Ramp, Intercom, and fal. If you're interested in a next-generation Python experience for your team: get in touch today. At Astral, we build high-performance developer tools for the Python ecosystem. We're best known for Ruff, our linter and formatter, and uv, our package manager. I started this company because Python felt under-served: the most popular programming ecosystem on Earth was succeeding in spite of its tooling. Over the past two years, Python's growth has only accelerated — and in parallel, our tools have seen unprecedented adoption, with over 100 million installs per month across the Astral toolchain and uv powering over 500 million requests per day. The amount of Python code in the world is increasing at an astounding rate, and our tools are powering those workloads. Our goal is to make Python the most productive programming ecosystem on Earth, and our open source tools have been driven by that unifying vision. But there are limits to what we can do with client-side tools alone. We want to expand the scope of problems we can solve — beyond command-line tools and into our own end-to-end infrastructure. We want to build a Python cloud: a set of unified services that make Python fast, easy, and robust, extending the work and principles we've built upon in our open source toolchain. We're starting with pyx, a Python-native package registry. It's the first piece of the Astral platform: our next-generation infrastructure for the Python ecosystem. We thin...