title: Weird HyLang dot notation behavior
body: <p>Why does the following work:</p>
  
  <pre><code>(def session (sessionmaker))
  (.configure session :bind engine)
  </code></pre>
  
  <p>...but <code>(def session (.configure (sessionmaker) :bind engine))</code> causes my Hy application to throw a <code>NoneType</code> <code>TypeError</code>?</p>