title: Original code from matplotlib site not work
body: <p>I tried to run the code from this site:
  <a href="https://matplotlib.org/gallery/lines_bars_and_markers/horizontal_barchart_distribution.html#sphx-glr-gallery-lines-bars-and-markers-horizontal-barchart-distribution-py" rel="nofollow noreferrer">https://matplotlib.org/gallery/lines_bars_and_markers/horizontal_barchart_distribution.html#sphx-glr-gallery-lines-bars-and-markers-horizontal-barchart-distribution-py</a></p>
  
  <p>And, its not work. I mean i downloaded the code to my computer which is windows 10.
  I have python 3.7, and this code simply do nothing.
  Any help!?
  Thanks in ahead.</p>