collections.deque - Qiita

import collections import queue collections.deque q = queue.Queue() lq = queue.LifoQueue() l = [] d = collections.deque() for i in range(3): q.put(i) lq.put(i) l.append(i) d.append(i) for _ in range(3): print('FIFO queue = {}'.format(q.get())) print('LIFO queue = {}'.format(lq.get())) print('list = {}'.format(l.pop())) #pop(0)でFIFO print('deque = {}'.format(d.pop())) #d.popleft()でFIFO print() FIFO