title: Range as dictionary key in Python
body: <p>So, I had an idea that I could use a range of numbers as a key for a single value in a dictionary.</p>
  
  <p>I wrote the code bellow, but I cannot get it to work.  Is it even possible?</p>
  
  <pre><code>    stealth_roll = randint(1, 20)
      # select from a dictionary of 4 responses using one of four ranges.
      ## not working.
      stealth_check = {
                      range(1, 6) : 'You are about as stealthy as thunderstorm.',
                      range(6, 11) : 'You tip-toe through the crowd of walkers, while loudly calling them names.',
                      range(11, 16) : 'You are quiet, and deliberate, but still you smell.',
                      range(16, 20) : 'You move like a ninja, but attracting a handful of walkers was inevitable.'
                      }
  
      print stealth_check[stealth_roll]
  </code></pre>