Check Python version in Windows CMD with step-by-step methods. Ensure compatibility for scripts and libraries in seconds.

This post shows you how to check Python version in three ways: by checking the software name, through the terminal, or in the code.

What version of Python should you use? At the time of writing, the newest version of Python is Python 3.9.1. This provides a number of bug fixes over previous versions and some security updates.

In a Q&A, Python programming language creator Guido van Rossum said it was "almost taboo to talk about a Python 4 in a serious sense" following the troubled migration from Python 2.0 to Python 3.0.

Also, check out my companion video below for a quick benchmark comparison of the no-GIL mode versus Python’s standard single-threaded version. Installing Python 3.13’s free-threaded version ...