Method discard

recipes/Python/577624_OrderedSet/recipe-577624.py:26–30

(self, key)

            curr[self.NEXT] = end[self.PREV] = self.map[key] = [key, curr, end]

    def discard(self, key):
        if key in self.map:        
            key, prev, next = self.map.pop(key)
            prev[self.NEXT] = next
            next[self.PREV] = prev

    def __iter__(self):
        end = self.end