def empty_list ( self ):
        control = ImageControl( self.control, self.bitmap, -1,
                                self.popup_empty_menu )
        control.is_empty = True
        proxy    = ListItemProxy( self.object, self.name, -1, None, None )
        pcontrol = wx.StaticText( self.control, -1, '   (Empty List)' )
        pcontrol.proxy = control.proxy = proxy
        self.reload_sizer( [ ( control, pcontrol ) ] )

    #---------------------------------------------------------------------------
    #  Reloads the layout from the specified list of ( button, proxy ) pairs:
    #---------------------------------------------------------------------------
Creates an empty list entry (so the user can add a new item).
dataset/ETHPy150Open enthought/traitsui/traitsui/wx/list_editor.py/SimpleEditor.empty_list