title: Sorting the list of dictionaries in descending order of a particular key
body: <p>I have a list of dictionaries in python, for example</p>
  
  <pre><code>[{'a':3, 'b':4, 'c':5, 'd':'6'}, {'a':1, 'b':2, 'c':7, 'd':'9'}]
  </code></pre>
  
  <p>I want to sort it based on the value of 'c' in descending order. I tried using <code>sorted()</code> method using <code>key = lambda</code> but no help.</p>
  
  <p>Any ideas??</p>