I am attempting to try out Google App Engine with python. Being familiar with Eclipse, I decided to use PyDev. After some trouble, I have a hello world program working...
The current SDK does not support the Python 2.7 runtime on the dev_appserver, so it doesn't bundle new libraries like webapp2. If all you need is the libraries, you can download them and include them in your app yourself, but if you need extra runtime features like multithreading and PIL, you will need to do your development in the production environment for now.