title: Python: Generate random number between x and y which is a multiple of 5
body: <p>I've read the manual for pseudo-randomness in Python, and to my knowledge, you can only generate numbers up to a given maximum value, i.e. 0-1, 0-30, 0-1000, etc.  I want to:</p>
  
  <ul>
  <li>a) Generate a number between two ints, i.e. 5-55, and</li>
  <li>b) Only include multiples of 5 (or those ending in 5 or 0, if that's easier)</li>
  </ul>
  
  <p>I've looked around, and I can't find anywhere that explains this.</p>