title: What is the difference between len() and count() in python?
body: <p>look at this code : </p>
  
  <pre><code>x=object()
  x_list=[x]*5
  print x_list.count(x)
  5
  print len(x_list)
  5
  </code></pre>
  
  <p>The output of <code>count()</code> and <code>len()</code> is same, What is the difference between them?</p>