python: sorting a dict of dicts on a key
<p>A data structure like this.</p>

<pre><code>{
  'ford': {'count': 3},
  'mazda': {'count': 0},
  'toyota': {'count': 1}
 }
</code></pre>

<p>What's the best way to sort on the value of <code>count</code> within the values of the top-level dict?</p>
