Python Looping Techniques

looping thru list

li = ['cube', 'sphere', 'reactangle' ]

for i, v in enumerate(li):
    print i,v

0 cube
1 sphere
2 reactangle

Looping thru Dictionary

a = {'translate': '25', 'rotate': '4'} 

for k, v in a.iteritems():
     print k, v

translate 25
rotate 4

List Comprehension

squares = [x**2 for x in range(10)]

 [0, 1, 4, 9, 16, 25, 36, 49, 64, 81]

squares = map(lambda x: x**2, range(10))

 [0, 1, 4, 9, 16, 25, 36, 49, 64, 81]