title: randrange inside for loop in python 3.5
body: <p>Please explain why the following code doesn't work. </p>
  
  <pre><code>import random
  for x in random.randrange(100):
      print(x, end='')
      print()
  for y in random.randrange(100):
      print(y, end='')
      print()
  </code></pre>