As an aside, I've just pushed the skeleton of a plugin to handle Python plugins. I need to push PythonQT to extras-devel asap and then work out the structure of Python plugins and fill in the useful code, but I have at least started (finally! )

The reason for using a plugin to host multiple plugins is to stop it being necessary for people to include the additional PythonQT startup overhead and dependencies unless they are using a Python plugin.

Anyway, I'm working on it