title: . + tab AutoComplete not working in Jupyter Notebook
body: <p>So out of nowhere I seemingly cannot autocomplete methods using . + Tab in Jupyter Notebook.</p>
  
  <p>Currently running Jupyter 6.0.1</p>
  
  <p>I've tried the following with no success:</p>
  
  <p><code>$ sudo easy_install readline</code></p>
  
  <p><code>conda install -c anaconda jedi</code> &amp; updated conda</p>
  
  <p>and the following</p>
  
  <p><code>pip install pyreadline</code></p>
  
  <p>thanks!</p>