Getting error when running 06-sixthTutorial-moresignals.py

I'm getting an error stating:

ASSERT: "pyMethod" in file /tmp/pyside-gUBW/pyside-qt4.8+1.1.2/libpyside/signalmanager.cpp, line 444

~~Any idea why this is happening at all, I'm running the code exactly as is, using Mac OS X 10.8.3. I have Python 2.7.4, as well as qt 4.8.4, and pyside 1.1.2 installed via HomeBrew.~~

Solved by changing signal to **atzero(int, int)**

Watching the YouTube video helped solving, thanks for the tutorials!