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.

JIT compiler stack up against PyPy? We ran side-by-side benchmarks to find out, and the answers may surprise you.

Python often gets a bad rap in terms of performance. Critics often move the goal posts mid-discussion, either unintentionally or simply to get a rise out of Python developers. Here's a typical ...