title: How to use python readlines method in random order
body: <p>How can one use the <code>readlines()</code> method to read a file in a random shuffled manner i.e. <code>random.shuffle()</code></p>
  
  <pre><code>file = open(filename)
  data = file.readlines()           
  file_length =  len(data)
  </code></pre>