title: AttributeError: 'Line2D' object has no property 'ax'
body: <p>Code:</p>
  <pre><code>fig, ax = plt.subplots()
  </code></pre>
  <p>Error:</p>
  <blockquote>
  <p>AttributeError: 'Line2D' object has no property 'ax'</p>
  </blockquote>