title: Way to iterate two items at a time in a list?
body: <p>I am wondering if there is a better way to iterate two items at a time in a list. I work with Maya a lot, and one of its commands (listConnections) returns a list of alternating values. The list will look like [connectionDestination, connectionSource, connectionDestination, connectionSource]. To do anything with this list, I would ideally like to do something similar to:</p>
  
  <pre><code>for destination, source in cmds.listConnections():
      print source, destination
  </code></pre>
  
  <p>You could, of course just iterate every other item in the list using [::2] and enumerate and source would be the index+1, but then you have to add in extra checks for odd numbered lists and stuff.</p>
  
  <p>The closest thing I have come up with so far is:</p>
  
  <pre><code>from itertools import izip
  connections = cmds.listConnections()
  for destination, source in izip(connections[::2], connections[1::2]):
      print source, destination
  </code></pre>
  
  <p>This isn't super important, as I already have ways of doing what I want. This just seems like one of those things that there should be a better way of doing it.</p>