title: Sort key of key in dictionary python
body: <p>I have a dictionary which has some dictionaries inside. Like this:</p>
  <pre><code>Dict= {
  &quot;Item1&quot;: {&quot;price&quot;: 73814.55, &quot;date&quot;: f_actual}, 
  &quot;Item2&quot;: {&quot;price&quot;: 75700, &quot;date&quot;: f1},
  &quot;Item3&quot;: {&quot;price&quot;: 84200, &quot;date&quot;: f2}
  }
  </code></pre>
  <p>I want to sort the attribute 'price' (from highest to lowest). I think I can use sorted function but I dont know how to refer to ´price´ key since they are nested to Item1, Item2, etc:</p>
  <pre><code>sorted(Dict, key = ??, reverse = True)
  </code></pre>
  <p>So, my question is how can I do this? Is there any other approach?</p>