--- title: "Detect Python Version" date: 2021-03-15T18:09:38-04:00 draft: false tags: ["Python"] --- I was working on a distribution recently where `python` was mapped to `python2`. It mixed me up for a bit since I was writing a script for `python3` but it ran partially under `python2`. To lower confusion in the future, I think it's a great idea to check the python version and exit if it isn't the version you expect. ```python from sys import version_info, exit if version_info.major != 3: print("This script only supports Python 3") print("Curent version: " + \ str(version_info.major) + "." + \ str(version_info.minor) + "." + \ str(version_info.micro) ) print("Exiting...") exit(1) ```