Try running this program with Python 3.12 or Python 3.13 (the GIL version). On my AMD Ryzen 3600 six-core machine, it completes in about two seconds. With Python 3.13t, it completes in about 0.6 ...

Any major change to Python needs buy-in from the wider Python community. The experimental builds give Python users a way to safely experiment with testing their code, and to see how both non ...