You have the right. On my mac mini, I still had the old version PyMUI 0.4, SVN r237. Thank you for the hint. Now it works. :D

I have one more question of Class MyArea() from your example. I see that the converter() method takes 3 arguments (self, msg, tp). In the example, wants two arguments. What is and what he must be given in the third argument, called tp.

[ Edited by sandlbn 21.07.2011 - 09:16 ]