Python slow print

slowprint.py

import sys
import time

def slowprint(s):
  for c in s + '\n':
    sys.stdout.write(c)
    sys.stdout.flush()
    time.sleep(1./10)

if __name__ == "__main__":
  slowprint("This is a test of slowprint")

doesnt work?

it works for me with python2 as well as python3