Iterate over deque in python

I used a while loop for deque iteration, as follows:

from collections import deque

lst = [1,2,4,8]
queue=deque(lst)

print(queue)

while queue:
    print('{}{}'.format("head: ",queue[0]))
    queue.popleft()

output:

deque([1, 2, 4, 8])
head: 1
head: 2
head: 4
head: 8

You can directly iterate over the deque.

for i in d:
    doSomethingWith(i)

(see the examples in the documentation: https://docs.python.org/2/library/collections.html#collections.deque)