title: Specifying the order of matplotlib layers
body: <p>Suppose I run the following script:</p>
  
  <pre><code>import matplotlib.pyplot as plt
  
  lineWidth = 20
  plt.figure()
  plt.plot([0,0],[-1,1], lw=lineWidth, c='b')
  plt.plot([-1,1],[-1,1], lw=lineWidth, c='r')
  plt.plot([-1,1],[1,-1], lw=lineWidth, c='g')
  plt.show()
  </code></pre>
  
  <p>This produces the following:</p>
  
  <p><a href="https://i.stack.imgur.com/ciszc.png" rel="noreferrer"><img src="https://i.stack.imgur.com/ciszc.png" alt="enter image description here"></a></p>
  
  <p>How can I specify the top-to-bottom order of the layers instead of having Python pick for me?</p>