Install web2py. Download either an executable version, or a source code version. They work the same; the source code version is better however if you later plan to deploy your project in the cloud, so it is recommended. You can always switch versions later.
Run web2py. If you are using the source code version, you can do so with the command:
python web2py.py
Load the application we built in class. Once in the web2py browser tab, click on Administrative Interface. Enter the password you entered when starting web2py. Scroll down, to Upload and Install Packed Applications. Give the application any name you wish, and select for upload the web2py packaged application we developed in class.
Play with the app. Click on the application to run it. Click on Manage > Edit to view the source code. Browse around, look at what we did. Familiarize yourself with what's there.
You might also want to browse the Python tutorial, the chapter on Python in the web2py book.