(self)
od.clear() -> None.  Remove all items from od.
od.clear() -> None.  Remove all items from od.
od . clear () - > None . Remove all items from od .
def clear(self):
        'od.clear() -> None.  Remove all items from od.'
        root = self.__root
        root.prev = root.next = root
        self.__map.clear()
        dict.clear(self)
def clear ( self ) : root = self . __root root . prev = root . next = root self . __map . clear ( ) dict . clear ( self )