Progress

main.py

import sys, time

def chunks(l, n):
    c = len(l)
    for i in xrange(0, c, n):
        sys.stdout.write("\r%d%%" % (min(i+n,c)*100/c,))
        sys.stdout.flush()
        yield l[i:i+n]

for chunk in chunks(range(100), 10):
  time.sleep(1)
print ''