Logged In: YES 
user_id=893306

Thanks for starting this work.  I've done a bit of
sleuthing, and I think I know why you weren't seeing any
errors.  cgitb.py is used to capture error information and
print it.  In its current form it explicitly uses 'print',
whcih is why you don't see any information.  

I'm interested in completing what you started, and I think
I'm fairly close to some alpha code.  Is anyone else working
on or interested in this issue?