To run a Python script with the py launcher, simply substitute py and its command-line switches for python or python3. For instance, here is the command typically used to upgrade pip by running it ...

Open your Python program in your editor of choice. Go to the section of your code where you want to invoke the Windows command prompt application.

Interested in learning Python? Jack Wallen takes you through your first steps in building a simple application to take user input and write it to a file.