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Free-threaded CPython is ready to experiment with


An overview of the ongoing efforts to improve and roll out support for free-threaded CPython throughout the Python open source ecosystem

Later today, the Birds-of-a-Feather session"Supporting free-threaded Python" will be held at the SciPy 2024 conference (co-organized by one of our team members, Nathan Goldbaum, together with Madicken Munck), focusing on knowledge and experience sharing. After a full year of maturing support in the ecosystem and further improvements in performance in CPython itself, we should have a good picture of both the benefits and the remaining challenges with robustness. While our team is busy with implementing CI jobs and fixing thread-safety issues, we are as curious as anyone to see what performance improvements and interesting experiments are going to show up with real-world code soon.

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threaded CPython