Problem in understanding Python list comprehensions

Question

What does the last line mean in the following code?

import pickle, urllib                                                                                                 


        

Answer 1

Andy's is a great answer!

If you want to see every step of the loop (with line-breaks) try this out:

for elt in data:
    for e in elt:
        print "e[0] == %s, e[1] == %d, which gives us:  '%s'" % (e[0], e[1], ''.join(e[1] * e[0]))