def setLineEditText(self):
        self.setEditText(str(self.minValue) + " : " + str(self.maxValue) + " by "
                         + str(self.stride))
        self.lineEdit().setCursorPosition(0)
Set the comboBox's lineEdit to show:  minValue : maxValue by stride
dataset/ETHPy150Open VisTrails/VisTrails/contrib/cdat/cdat_window.py/QAxisComboWidget.setLineEditText