Exceptions do not always have __module__ attribute

[J. Milner]

Hello,

Some Exceptions are not passed through to the output document because they do not have __module__ attributes. For example:
* In my template, I write a comment with the statement do text for thneed in student.thneeds;
* student has no attribute thneeds;
* When trying to render the report, the error I see is:
File "/opt/django-sis/appy/pod/actions.py" in getExceptionLine
  58. return '%s.%s: %s' % (e.__module__, e.__class__.__name__, str(e))

Exception Type: AttributeError at /sis/reports/
Exception Value: 'exceptions.AttributeError' object has no attribute '__module__'

* Looking at the local variable e in the stack trace, I can see that the real exception is:
AttributeError("'Student' object has no attribute 'thneeds'",)

* However, e.__module__ doesn't exist, so getExceptionLine() fails, and instead of passing the true exception into the output document as a comment, generation stops completely.

https://bugs.launchpad.net/appy/+bug/1213724 is a related bug in that AttributeError is being raised instead of noting the SyntaxError in the output document.

Kind regards,

John