Problem with viewing plasma applets made with Python

[Kacper Nyka]

Hello!

Since some tutorials on creating plasma applets with Python are online
on techbase, I wanted to check it out. The installation of the example
applet on http://techbase.kde.org/Development/Tutorials/Plasma/Python/Using_widgets
works fine, just viewing it with plasmoidviewer doesn't work. Here is
the output of it:
http://sleepwalkers.ptsa.de/~kacper/plasma-python.jpg

An interesting fact is, that I get the same message in the
plasmoidviewer window doing an applet with Ruby. And the example on
http://techbase.kde.org/Development/Tutorials/Plasma/Python/GettingStarted
also doesn't work. But there I do only get the error message in
plasmoidviewer, not an output in the terminal like with the example in
the first link.

-- Kacper