title: index and column for the max value in pandas dataframe
body: <p>I have a python dataframe df with five columns and five rows. I would like to get the row and column name of the max three values</p>
  
  <p>Example: </p>
  
  <pre><code>df = 
  
    A   B  C  D  E  F
  1 00 01 02 03 04 05
  2 06 07 08 09 10 11
  3 12 13 14 15 16 17
  4 18 19 20 21 22 23
  5 24 25 26 27 28 29
  </code></pre>
  
  <p>The output show say something like
  [5,F],[5,E],[5,D]</p>