title: Django/Jython ImproperlyConfigured error
body: <p>As specified in the tutorial (http://www.jython.org/jythonbook/en/1.0/JythonDjango.html), I am using doj.backends.zxjdbc.postgresql as Django's DB engine. However, when I do</p>
  
  <pre><code>jython manage.py syncdb
  </code></pre>
  
  <p>I get an ImproperlyConfigured error, stating that doj.backends.zxjdbc.postgresql is not an available backend and that no module named postgresql exists. Strangely, if I enter the Jython shell, I can do</p>
  
  <pre><code>import doj.backends.zxjdbc.postgresql
  </code></pre>
  
  <p>without any error messages.</p>
  
  <p>Ideas on what is going on here?</p>