OpenAI Acquires Astral: What It Means for PyCharm Users
On March 19, OpenAI announced that it would acquire Astral, the company behind uv, Ruff, and ty. The Astral team, led by founder Charlie Marsh, will join OpenAI’s Codex team. The deal is subject to regulatory approval.
First and foremost: congratulations to Charlie Marsh and the entire Astral team. They shipped some of the most beloved tools in the Python ecosystem and raised the bar for what developer tooling can be. This acquisition is a reflection of the impact they’ve had.
This is big news for the Python ecosystem, and it matters to us at JetBrains. Here’s our perspective.
What Astral built
In just two years, Astral transformed Python tooling. Their tools now see hundreds of millions of downloads every month, and for good reason:
- uv is a blazing-fast package and environment manager that unifies functionality from pip, venv, pyenv, pipx, and more into a single tool. With around 124 million monthly downloads, it has quickly become the default choice for many Python developers.
- Ruff is an extremely fast linter and formatter, written in Rust. For many teams it has replaced flake8, isort, and black entirely.
- ty is a new type checker for Python. It’s still early, and we’re already working on it with PyCharm. It’s showing promise.
This is foundational infrastructure that millions of developers rely on every day. We’ve integrated both Ruff and uv into PyCharm because they substantially make Python development better.
The risks are real, but manageable
Change always carries risk, and acquisitions are no exception. The main concern here is straightforward: if Astral’s engineers get reassigned to OpenAI’s more commercial priorities, these tools could stagnate over time.
The good news is that Astral’s tools are open-source under permissive licenses. The community can fork them if it ever comes to that. As Armin Ronacher has noted, uv is “very forkable and maintainable.” There’s no possible future where these tools go backwards.
Both OpenAI and Astral have committed to continued open-source development. We take them at their word, and we hope for the best.
Our commitment hasn’t changed
JetBrains already has great working relationships with both the Astral and the Codex teams. We’ve been integrating Ruff and uv into PyCharm, and we will continue to do so. We’ve submitted some upstream improvements to ty. Regardless of who owns these tools, our commitment to supporting the best Python tooling for our users stays the same. We’ll keep working with whoever maintains them.
The Python ecosystem is stronger because of the work Astral has done. We hope this acquisition amplifies that work, not diminishes it. We’ll be watching closely, and we’ll keep building the best possible experience for Python developers in PyCharm.
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