This is the continuation of this tutorial: http://algidus.blogspot.com/2017/12/installing-python-3-and-2-in-windows-10.html We will now set up Sublime Text 3 to run codes of both Python 2 and 3. First Download Sublime Text 3: https://www.sublimetext.com/3 By Default, the "Build System" of Sublime Text 3 is set to "Automatic" . To change the "Build System" , go to "Menu" Bar (Press "Alt" if it's not visible) and select "Tools" and "Build System" . Then select "Python" from the options. In the previous tutorial, we kept Python 3 as our default Python Version (By setting its path in the "Environmental Variables") . So, in Sublime Text 3, when you select "Python" in the "Build System", you'll be running the code in "Python 3". Now we're going to add a Custom Build System for "Python 2". To add a Build System for "Python 2...