Python -O won’t magically make every script faster, but in the right workloads it’s a free win—here’s how to test it safely.

Now you can have Cython’s speed boost without its cumbersome syntax, using the pure Python syntax you know and love. Cython has long been one of the great secret weapons of Python performance, letting ...

An experimental ‘no-GIL’ build mode in Python 3.13 disables the Global Interpreter Lock to enable true parallel execution in Python. Here’s where to start. The single biggest new feature in Python ...