problem debugging threads

[Axel Kowald]

Hello everybody,

I recently started to used threads in python (for GUI programming) and 
have problems when I want to debug such a multi-threaded script.

The debugger simply doesn't stop at breakpoints within the thread !  

I tried Komodo,  MS Visual Studio with Visual Python and  the 
HapDebugger, but they all show the same behaviour. So what is the proper 
way to debug threads ??

Many thanks,

                     Axel Kowald