title: Cannot use Jupyter (IPython) in Visual Studio Code
body: <p>I have Jupyter installed on my computer and have used it to run notebooks in my browser. Also, I have the Python plugin installed in VSCode. However, if I'm editing a Python file and I bring up the command palette and select <code>Jupyter: Run Selection/Line</code>, nothing happens, and I'm not shown a results window.</p>
  
  <p>I'm on a Mac, if it makes a difference.</p>