title: Python multiprocessing: joining a child without hanging up the parent -- requesting clarification of an existing answer
body: <p>This <a href="https://stackoverflow.com/a/5210951/3486684">answer</a> suggests how it is possible to join children of a process, without hanging up the parent process itself. </p>
  
  <p>I am having lots of trouble understanding it however, and hope that I can get your help. These are my questions at the moment:</p>
  
  <ol>
  <li>Is <code>Thread</code> an the Thread object from the <code>threading</code> class? </li>
  <li>When should the <code>Joiner</code> object be joined?</li>
  <li>Is this the still the best way to handle joining a child without hanging up the parent?</li>
  </ol>