I have some stone-age software the only runs on Python 2.6. When I try to run it, I get:

Traceback (most recent call last):
File "pesterchum.py", line 13, in <module>
from PyQt4 import QtGui, QtCore
ImportError: No module named PyQt4

I know that 2.6 is ancient, but I can't bring it up to date because the program architecture is way beyond me. I have attached the source code, none of you will probably have time to bring it up to date, but can you please tell me either:

What the correct module is and how to fix it, or

Fix all references and send the file back to me. (I understand if you don't have time for this)

Thanks a lot,