I was told the setToolTip() doesn't work on all platforms, therefore, I'm trying to use setStatusTip() to display a status message instead. But unfortunately, with the TreeWidgetItem the status bar is not getting updated. Nothing happens when I hover over the item.
The mouse tracking needs to be True on the QTreeWidget class to enable the status tips.
For this you need to call setMouseTracking(True) on your QTreeWidget class.
Status message not appearing when using setStatusTip() function with a TreeWidgetItem