def menu_checked ( self, menu_item ):
        for item in self.items:
            if item is not menu_item:
                item.control.Check( False )
                item.item.action.checked = False

    #---------------------------------------------------------------------------
    #  Handles a tool bar item in the group being checked:
    #---------------------------------------------------------------------------
Handles a menu item in the group being checked.
dataset/ETHPy150Open enthought/traitsui/traitsui/wx/ui_base.py/RadioGroup.menu_checked