>>> m1 = DictMenu()
>>> m2 = DictMenu() 
>>> m1 = m1 + dict.d
>>> m1.run()

        MENU...
                ham
                spam
?<ctrl-d> 
>>> m2.run()

        MENU...
                ham
                spam
?<ctrl-d> 
>>> l1 = ListMenu()
>>> l2 = ListMenu()
>>> l3 = ListMenu()
>>> l1 = l1 + dict.l
>>> l1.run()

        MENU...
                0) eggs
                1) toast
?<ctrl-d> 
>>> l2.run()

        MENU...
?<ctrl-d>
>>> l2.extend(('spam', lambda:1))
>>> l2.run()

        MENU...
                0) spam
?<ctrl-d>
>>> l3.run()

        MENU...
                0) spam
?<ctrl-d>