def _previous_tab(self):
        """ Activate the tab before the currently active tab.
        """
        self.control.setCurrentIndex(self.control.currentIndex() - 1)

    #### Trait change handlers ################################################
dataset/ETHPy150Open enthought/pyface/pyface/ui/qt4/tasks/editor_area_pane.py/EditorAreaPane._previous_tab/original