title: Getting a full stack trace with Django-piston
body: <p>I just started using <code>django-piston</code>.</p>
  
  <p>Usually, in Django, when my views throw an exception (and I'm in <code>DEBUG=True</code> mode), I get a really nice, helpful 500-error page with stack trace.</p>
  
  <p>But when my Django-piston enabled views throw an exception instead of a nice stack trace page, I get a simple error page with only the exception message printed out.</p>
  
  <p>For example...</p>
  
  <pre><code>Piston/0.2.3rc1 (Django 1.3) crash report:
  
  Method signature does not match.
  
  Signature should be: domain
  
  Exception was: exceptions must be old-style classes or derived from BaseException, not NoneType
  </code></pre>
  
  <p><strong>How do I get the helpful Django stack trace pages back?</strong></p>
  
  <p>Thanks.</p>