This project is no longer actively developed or maintained.
For new work on this check out python-docs-samples
This application implements the Python Guestbook sample but uses datastore namespaces to keep values in separate places.
Guestbook is an example application showing basic usage of Google App Engine. Users can read & write text messages and optionaly log-in with their Google account. Messages are stored in App Engine (NoSQL) High Replication Datastore (HRD) and retrieved using a strongly consistent (ancestor) query.