title: VS Code Code Runner doesn't work with virtualenvs
body: <p>I can't get Code Runner extension to work with virtualenvs. Whenever I try to run code that imports a library that is installed only in the virtualenv and not in the global Python installation I get an import error. Running the exact same code in terminal works.</p>
  
  <p>I am on Windows 10 and I have Python 3.6.5 installed.</p>
  
  <p>The precise error I am getting is:</p>
  
  <pre><code>ModuleNotFoundError: No module named 'bs4'
  </code></pre>