I am trying to migrate a plugin. I have these two lines:

QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), Configuration.accept)
QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("rejected()")), Configuration.reject)

I thought after looking into some examples that in PyQt5 the lines should read:

self.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), Configuration.accept)
self.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("rejected()")), Configuration.reject)

but it just throws the error

AttributeError: 'ConfigurationDialog' object has no attribute 'QObject'

This is confusing because ConfigurationDialog is not found in this py script. ConfigurationDialog is a class in another script but nowhere in it does it make reference to QObject. Can I get some clarification on what where I am going wrong?


2 Answers 2


With this documentation about PyQt5 signals, try this :

  • Thank you; I really need to do a python3 and pyQt5 course I would never have gotten that.
    – MrKingsley
    Commented Apr 2, 2019 at 13:19

I can't really tell you why the error message occurs, because I can't see your full code. But to solve your problem, try creating the Signal/Slot connection like this:


I hope this helps

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