title: Finding list indexes of numbers greater than a value
body: <p>How to get the index of a number in a python list if we have some condition:</p>
  <pre><code>    test_list=[1,5,7,11,20,26,89]
      # find index of number&gt;13
  </code></pre>
  <p><strong>Ans: 4</strong> (index value)</p>