OpenAI is acquiring Astral, the open source company behind Python tools ruff and uv

OpenAI is acquiring Astral, the company behind the popular Python tools ruff and uv, Ars Technica reported. The deal gives OpenAI ownership of foundational Python developer tooling used widely across the AI ecosystem. Ruff is a fast Python linter and uv is a package manager designed to replace pip. Both are open source and widely adopted. The acquisition raised concerns among developers about whether OpenAI will maintain open-source licenses.