How To Force PyQt5 Use For QObject Class?

I'm developping a small graphic application using Python 3 and PyQt5. On the first computer I use, where only PyQt5 is installed, everything in my code is fine. But when I want to

Solution 1:

A RuntimeError with message

the PyQt5.QtCore and PyQt4.QtCore modules both wrap the QObject class

is raised the moment you try to import PyQt5.QtCore while PyQt4.QtCore was already imported before.

This error is raised within SIP, which is used to connect to Qt. Like it states, it's only allowed to have one module claiming to wrap QObject. Thus the error just tells you, that you're using PyQt4 and PyQt5 at once.

So you need to find the module loading PyQt4 to configure it to use PyQt5 instead. Alternatively you could try to put from PyQt5.QtCore import QObject before any other import and hope, that the module, which usually imports from PyQt4, is adaptable and able to use PyQt5 as fallback.