title: Python: Remove from excel chart legend if value==0
body: <p>I am making a pie chart using xlsxwriter. I have lots of rows where the value is zero for the column I want to plot. Is it possible to remove from the legend if value is zero?
  So For example, in the following case I do not want to show Umbro and Fila in the legend
  <a href="https://i.stack.imgur.com/nEopl.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nEopl.jpg" alt="enter image description here" /></a></p>
  <p>What should my <code>add_series</code> function look like?
  I don't see anything here: <a href="https://media.readthedocs.org/pdf/pandas-xlsxwriter-charts/latest/pandas-xlsxwriter-charts.pdf" rel="nofollow noreferrer">https://media.readthedocs.org/pdf/pandas-xlsxwriter-charts/latest/pandas-xlsxwriter-charts.pdf</a></p>