Python 2.1 installation
Official website: https://www.python.org
This tutorial is recommended to use Python 3.7.6
installation process is similar to the general Windows programs, pay attention to check the "Add Python 3.xx to PATH."
Tip : If you are prompted "python " command is neither internal nor external command , then you need to add the Python install directory to the Path system variable , follow these steps .
Right-click on the desktop , "this computer " , open the context menu , click "Advanced System Properties → Settings → Advanced → Environment Variables " in the "System variables " of the "Path " is added.