title: Plotting N number of Graphs
body: <p>I have a DataFrame that looks like this:</p>
  
  <pre><code>               spot      total
  date_delivery       
  2016-06-21       x            20
  2016-07-25       x            22
  2016-08-14       x            25
  2016-09-11       y            16
  2016-10-16       y            10
  </code></pre>
  
  <p>The index of the DataFrame is in a <code>datetime</code> format. I want to create a simple graph for each unique spot that shows the total over time. I am having trouble writing a loop that performs this as well as saves each one. Keep in mind that while there is only 2 actual <code>spots</code> in this DataFrame the real one has many many more. </p>