title: Jupiterlab inline plot
body: <p>The code below was executed in notebook opened in <strong>Jupyter Lab</strong> (not Jupiter notebook), but it didn't show the plot.</p>
  
  <p>Does anyone else have this problem? Did you need to run special command to enable inline plotting in <strong>Jupyter Lab</strong>?</p>
  
  <p>input: </p>
  
  <pre><code>fig = plt.figure(figsize=(10,6),facecolor="white",dpi=100)
  ax = fig.add_subplot(111)
  ax.plot([1,2,3],[4,5,6])
  plt.show()
  </code></pre>
  
  <p>output: <code>FigureCanvasNbAgg()</code>. </p>