[$] Python subinterpreters and free-threading At https://us.pycon.org/2024/ in Pittsburgh, Pennsylvania, Anthony Shaw looked at the various kinds of parallelism available to Python programs. There have been two major developments on the parallel-execution front over the last few years, with the effort to provide https://lwn.net/Articles/820424/ , each with its own global interpreter lock (GIL), along with the work to https://lwn.net/Articles/940780/ . In the talk, he explored the two approaches to try to give attendees a sense of how to make the right choice for their applications. https://lwn.net/Articles/985041/