Python Containment tutorial?

[alan moore]

Hi,
In the api documentation for PyKDE on the plasma containment page 
(http://api.kde.org/pykde-4.2-api/plasma/Plasma.Containment.html), it 
says "See techbase.kde.org for a tutorial on writing Containments using 
this class".

I'm interested in created a containment plasmoid using Python, and I'm 
wondering if anyone can point me to the URL of this tutorial.  There is 
no link on the API docs page and I haven't found a containment tutorial 
for Python on techbase.

Thanks.