Yes this works, very very strange though. Lets see after we get the next PyQt update. I just reinstalled my whole development env with fresh everything, did not install any Qt 4.7 experimental related things, just the needed PyQt packages and some other python things that I can run my app. Segfaults would indicate the crash is somewhere in the c++ libs of course, maybe some confusion with the numbers.

Thanks a lot robin for your help!