Python 3.13’s installer lets you install the free-threaded build of Python side-by-side with the regular build. You can use the “py” utility to select which one to use for a given program.

Free-threaded Python is now officially supported, though using it remains optional. Here are four tips for developers getting started with true parallelism in Python.

This Swagger for Python tutorial demonstrates how to test, document and create REST APIs with OpenAPI, Swagger, Flask and FastAPI.