app.rc:

<app>
  <db>
    <username>Python</username>
    <password>sucks</password>
  </db>
  <backup>
     <machine>guido</machine>
     <frequency>4 hours</frequency>
  </backup>
  <logging>
     <file>/var/log/applog</file>
     <level>2</level>
  </logging>
</app>


##</code><code>##

$app->{'db'}->{'username'}