For years, Python threads could not use more than one CPU core at a time. That changed with the free-threaded build, which is now officially supported as of the time I'm writing this. Here's a brief ...

Python already has several ways to run programs concurrently — including asynchronous functions, threads, subinterpreters, and multiprocessing — but all of those options have drawbacks of one kind or ...

Your Python cache can run the same work twice, even with the GIL. See the check-then-act race, the lru_cache gotcha, and how ...