From parent directory, run:

google_appengine/dev_appserver.py --host 0.0.0.0 checkboxes

The main app.yaml file is for "Listathon" and uses list.py, but there are 3 other app.yaml files:

app.generated - generated checkboxes app.checkboxes - static html. app.orderedlists - store in Google NDB. Display as numbered lists.