title: What does an empty return in Python mean?
body: <p>When looking through Python code on GitHub, I've seen several examples of a <code>return</code> with no value. For example:</p>
  
  <pre><code>    if hasattr(self, 'moved_away'):
          return
      # and here code continues
  </code></pre>
  
  <p>What does the empty return mean?</p>