itertools_imap.py

#!/usr/bin/env python


from itertools import *

print 'Doubles:'
for i in imap(lambda x: 2 * x, xrange(5)):
    print i

print 'Multiples:'
for i in imap(lambda x, y: (x, y, x * y), xrange(5), xrange(5, 10)):
    print '%d * %d = %d' % i