from Queue import Queue arr = Queue() # for x in range(1, 10, 2): # data.enqueue(x) # # print(data) # print(len(data)) # print(data[0]) arr.enqueue(1) arr.enqueue(2) arr.enqueue(3) print(arr.isEmpty()) print(arr.peek()) arr.dequeue() print(arr.peek()) arr.dequeue() print(arr.peek()) for x in range(1, 100, 3): arr.enqueue(x) print(arr.__len__()) print(arr.__str__())