collections_deque_consuming.py

#!/usr/bin/env python


import collections

print 'From the right:'
d = collections.deque('abcdefg')
while True:
    try:
        print d.pop(),
    except IndexError:
        break
print

print '\nFrom the left:'
d = collections.deque(xrange(6))
while True:
    try:
        print d.popleft(),
    except IndexError:
        break
print