title: ipywidgets widgets values not changing
body: <p>I am trying to get output from my ipywidgets widgets in Microsoft Azure Notebooks running Jupyter Notebooks in Python 3.6. However, it does not return new values when I get them. This also applies to the event handlers/interact never being called for other widgets. </p>
  
  <p>I have tried putting in different initial values, using different types of widgets (<code>Text</code>, <code>Textarea</code>, <code>Checkbox</code>, <code>Button</code>, <code>ToggleButton</code>). I have tried getting the <code>w.value</code>, <code>ipywidgets.interact</code>, <code>w.observe</code>, and <code>w.on_click</code> on Buttons.</p>
  
  <p>A test that I did:</p>
  
  <pre><code>import time
  import ipywidgets as widgets
  from IPython.display import display
  
  w = widgets.Text(disabled=False)
  display(w)
  
  while True:
      print(w.value)
      time.sleep(1)
  </code></pre>
  
  <p>I expect that when I enter something into the <code>Text</code> field, that it will output that text, but instead it continues printing out what it started with. There are no errors. So, for the above example, regardless of what I input into the resultant Text field, all that is printed is empty lines.</p>