diff -r 83cc3ab2a612 -r 654deae7687e src/eric7/Debugger/DebugViewer.py --- a/src/eric7/Debugger/DebugViewer.py Sat Nov 04 17:59:52 2023 +0100 +++ b/src/eric7/Debugger/DebugViewer.py Sun Nov 05 12:05:52 2023 +0100 @@ -961,7 +961,7 @@ debuggerItem = debuggerItems[0] currentItem = self.__debuggersList.currentItem() - if currentItem.parent() is debuggerItem: + if currentItem is not None and currentItem.parent() is debuggerItem: currentChild = currentItem.text(0) else: currentChild = ""