title: Easiest way to include a stop parameter in enumerate python?
body: <p>Ss there a simple way to iterate over an iterable object that allows the specification of an end point, say -1, as well as the start point in enumerate. e.g.</p>
  
  <pre><code>for i, row in enumerate(myiterable, start=2): # will start indexing at 2
  </code></pre>
  
  <p>So if my object has a length of 10, what is the simplest way to to get it to start iterating at index 2 and stop iterating at index 9?</p>
  
  <p>Alternatively, is there something from itertools that is more suitable for this. I am specifically interested in high performance methods.</p>
  
  <p>In addition, when the start option was introduced in 2.6, is there any reason why a stop option was not?  </p>
  
  <p>Cheers</p>