[Inkscape-user] Python binding documentation for effects

Hello, afaics, python is the recommended language for writing one's own extensions and effects. http://wiki.inkscape.org/wiki/index.php/PythonEffectTutorial gives a nice little overview, and http://wiki.inkscape.org/wiki/index.php/PythonModules provides a little bit more information. My question is: Is there a more comprehensive documentation somewhere about the several modules, classes and their methods and attributes? Or at least a brief summary how to iterate over objects, layers, nodes, etc and how to modify them?

Thanks, Daniel