An elegant and fast way to consecutively iterate over two or more containers in Python?

Question

I have three collection.deques and what I need to do is to iterate over each of them and perform the same action:

for obj in deque1:  
    some_action(obj)           


        

Answer 1

How about zip?

for obj in zip(deque1, deque2, deque3):
    for sub_obj in obj:
        some_action(sub_obj)