Method appendleft

recipes/Python/528878_Ordered_Set/recipe-528878.py:79–81

Add an element to the left side of the OrderedSet.

(self, element)

        self._insertatnode(self._end.prev, element)

    def appendleft(self, element):
        """Add an element to the left side of the OrderedSet."""
        self._insertatnode(self._start, element)

    def clear(self):
        """Remove all elements from the OrderedSet."""