W3School TIY Editor

class Queue: def __init__(self): self.queue = [] def enqueue(self, element): self.queue.append(element) def dequeue(self): if self.isEmpty(): return "Queue is empty" return self.queue.pop(0) def peek(self): if self.isEmpty(): return "Queue is empty" return self.queue[0] def isEmpty(self): return len(self.queue) == 0 def size(self): return len(self.queue) # Create a queue myQueue = Queue() myQueue.enqueue('A') myQueue.enqueue('B') myQueue.enqueue('C') print("Queue: ", myQueue.queue) print("Peek: ", myQueue.peek()) print("Dequeue: ", myQueue.dequeue()) print("Queue after Dequeue: ", myQueue.queue) print("isEmpty: ", myQueue.isEmpty()) print("Size: ", myQueue.size())