title: How to export plots from matplotlib with transparent background?
body: <p>I am using matplotlib to make some graphs and unfortunately I cannot export them without the white background. </p>
  
  <p><img src="https://i.stack.imgur.com/wfysS.png" alt="sample plot with solid white background"></p>
  
  <p>In other words, when I export a plot like this and position it on top of another image, the white background hides what is behind it rather than allowing it to show through. How can I export plots with a transparent background instead?</p>