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.

Want to make a Python user grind their teeth? Just recite three words: Python is slow. In many of the ways that matter, it’s true. “Pure” Python, without external libraries written in C, is nowhere ...

Python is powerful, versatile, and programmer-friendly, but it isn’t the fastest programming language around. Some of Python’s speed limitations are due to its default implementation, CPython, being ...