https://forum.qt.io/topic/37800/unable-to-use-qcombobox-s-setitemdata-method-for-qstandarditem-objects-pyside
Unable to use QComboBox's setItemData() method for QStandardItem objects (PySide) | Qt Forum
Feb 14, 2014 - I've checked everywhere to see whether someone else has reported this as a bug, but I've seen nothing--as a result, I'm not sure if I'm doing something wrong...