PyQt4 app broken

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http://www.linuxquestions.org – I updated my system using pacman -Syu, the updates included a new version of PyQt4 and the replacement of Python 2 with Python 3. Now my PyQt4 app crashes with this error message: Code: Traceback (most recent call last):   File "/home/michael/Projects/pyqtetris/pyqtetris", line 7, in <module>     from PyQt4.QtCore import * ImportError: No module named PyQt4.QtCore (HowTos)