title: How do I use updatable displays on colab?
body: <p>On the Jupyter Notebook I can create named outputs that are able to be updated like this:</p>
  
  <pre><code>from IPython.display import HTML, display
  import time
  
  def progress(value, max=100):
      return HTML("""
          &lt;progress
              value='{value}'
              max='{max}',
              style='width: 100%'
          &gt;
              {value}
          &lt;/progress&gt;
      """.format(value=value, max=max))
  
  out = display(progress(0, 100), display_id=True)
  for ii in range(101):
      time.sleep(0.02)
      out.update(progress(ii, 100))
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/7ICOL.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/7ICOL.gif" alt="progress bar"></a></p>
  
  <p>Whereas in <a href="https://colab.research.google.com" rel="noreferrer">colab</a> it doesn't update the progress bar.</p>
  
  <p><a href="https://i.stack.imgur.com/BNQ4P.png" rel="noreferrer"><img src="https://i.stack.imgur.com/BNQ4P.png" alt="colab no updatey"></a></p>
  
  <p>How do you do this in colab?</p>