Every time I try to add a plasmoid written in python I get a plasma segmentation fault. The bad thing is that I can’t obtain a good backtrace, even if I’ve all debuginfo packages relate to python and KDE4 installed. Here’s an example:
pastebin - Plasma segfault - post number 1580074
I’m using KDE4.3.1 on openSUSE 11.1 64bit.
And, before you ask me, yes, I’ve installed all necessary python bindings for KDE4 
There’s probably some old stuff in your plasma-config files. To resolve this matter, you need to ‘recreate’ your desktop, i.e. the theme-settings etc. To do so:
Log out to kdm login screen
Hit Ctrl-Alt-F1 to go to console
Login with username and password, then do:
rm ~/.kde4/share/config/plasma*
Then hit Ctrl-Alt-F7 to return to login screen. Login with username and password. Now you will see the standard desktop. Apply your settings and widgets, problem should be gone now.
If not, your upgrade to 4.3.1 may not have been complete. Get back to us if problem persists.
It didn’t work, but I’ve resolved removing some repositories I’ve added some time ago and updating all packages.
Anyway, thanks for the help! 
Cheers Great you solved it.