Omnigeist is a project mainly written in PYTHON and C, it's free.
Tipfy is a small but powerful framework made specifically for Google App Engine. Here are some quick instructions to get started with it. More details are available in tipfy's wiki:
http://www.tipfy.org/wiki/guide/installation/
Our goal gere is to provide a smooth installation process so that you can see a tipfy application up and running in a few minutes. If you have any problems, please post a message to the discussion group:
http://groups.google.com/group/tipfy
If you downloaded the all-in-one pack, all you need to do is to start the development server pointing to the /app dir inside the uncompressed archive:
Run the dev_appserver tool from the App Engine SDK (or the App Engine Launcher) pointing to the /app directory inside the uncompressed archive:
dev_appserver.py /path/to/project/app
Open a browser and test the URLs:
http://localhost:8080/ http://localhost:8080/pretty
You should see a Hello, World! message. If you do, that's all. Now you have a project environment to start developing your app.
If you downloaded the do-it-yourself pack, you need to first install the needed libraries before running de development server. Here's how:
Access the project directory and call the bootstrap script using your Python 2.5 interpreter. We pass the command --distribute because it is preferable to the default setuptools. This will prepare buildout to run:
python bootstrap.py --distribute
Build the project calling bin/buildout. This will download and setup tipfy and all libraries inside the /app directory. It may take a while.
bin/buildout
Start the development server calling bin/dev_appserver. It will use the application from /app by default:
bin/dev_appserver
Open a browser and test the URLs:
http://localhost:8080/ http://localhost:8080/pretty
You should see a Hello, World! message. If you do, that's all. Now you have a project environment to start developing your app.