# 왼쪽에 요소값 추가하기 (1) - appendleft import collections lst = ['a','b','c','d','e','f','g'] deq = collections.deque(lst) deq.appendleft('h') print(list(deq)) ['h', 'a', 'b', 'c', 'd', 'e', 'f', 'g'] # 왼쪽에 요소값 추가하기 (2) - extendleft import collections lst = ['a','b','c','d','e','f','g'] deq = collections.deque(lst) deq.extendleft('h') print(list(deq)) ['h', 'a', 'b', 'c', 'd', 'e', 'f', 'g']