title: Case-insensitive comparison of two lists
body: <p>I have 2 lists. The first is <code>list_A = ['Sasi', 'Babu', 'kuttapppan', 'mathayi']</code> and my second list is <code>list_B = ['Raman', 'Kesavan', 'sasi', 'unni', 'Kuttappan']</code>.</p>
  
  <p>I want to compare these two lists and identify the values which are duplicated in the second list regardless of if it starts with a capital letter or a lowercase letter. I've tried the following method:</p>
  
  <pre><code>if not [name for name in list_A if name in list_B]:
       print name
  </code></pre>
  
  <p>But it is not working as expected.</p>