Implement a queue using two stacks

TwoStacksQueue.py

class QueueUsingStacks:
    def __init__(self):
        self.stack1 = []
        self.stack2 = []
        
    def enqueue(self,value):
        self.stack1.append(value)
    
    #if empty, pop from stack1 and put each value in stack2. 
    def dequeue(self):
        if len(self.stack2)==0:
            while len(self.stack1)!=0:
                self.stack2.append(self.stack1.pop())
        print(self.stack2.pop())
    
    #Print each of 2 stack's status
    def returnstackstage(self):
        print ("Stack 1", self.stack1)
        print ("Stack 2", self.stack2)

q = QueueUsingStacks()
q.enqueue(10)
q.enqueue(20)
q.enqueue(30)
q.dequeue()
q.dequeue()
q.dequeue()
q.returnstackstage()