In Previous Post we have installed Python 3.7 version on window if you want to access Python from command line , you will have to set the Environmental Path for accessing it .
Check Out How To Install Python On Windows 7/8/10
Go to Search type “advanced system settings,” and then select “View advanced system settings” option. In the “System Properties” window will open, on the “Advanced” tab, click the “Environment Variables” button.
Click on Environment Variable
Python will be installed on this path mentioned below
Click on New under System Variables and add these path to that location
Click on Okay
Now Open cli Python
See it’s working and printed the Hello world message.