queue = []

​

# Enqueue

queue.append('A')

queue.append('B')

queue.append('C')

print("Queue: ", queue)

​

# Peek

frontElement = queue[0]

print("Peek: ", frontElement)

​

# Dequeue

poppedElement = queue.pop(0)

print("Dequeue: ", poppedElement)

​

print("Queue after Dequeue: ", queue)

​

# isEmpty

isEmpty = not bool(queue)

print("isEmpty: ", isEmpty)

​

# Size

print("Size: ", len(queue))

​