title: How to find maximum number in a 2d python list
body: <p>I have a list in python as </p>
  
  <pre><code>my_list = [2,4,6,[5,10,3]]
  </code></pre>
  
  <p>How can I find the maximum number (i.e the program should return the max as 10)?</p>
  
  <p>Thanks</p>