The easiest way to run scripts is to run them from the command line. Assuming you've set-up your system's Path variable (I show you how) you can run your scripts and execute lines of code directly (using the -c switch) from the command line.
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Having configured Python we then go on to run a script at the command line and edit the previous episode's hello.py using Notepad, demonstrating Notepad's deficiencies as an editor(!).
I also set a simple task for you - write a script to list the contents of the directory (replicating the normal 'dir' command at the DOS prompt). You'll find some help here. Come join me in the forum for questions and more assignments.