[PyQt] installing PyQt4.3 on a mac

[K.Wegner at herts.ac.uk]

Hi,

I tried to install the latest PyQt on a mac but the only error message I 
got after running an PyQt example is "bus error". I installed Qt 4.3 
(examples work) and Sip 4.6. Does anyone has an idea what does mean?

Thanks for any help in advance.
Katja