[mod_python] Is right to ignore errors while pickling session data?

I've learnt after a few minutes of debugging that modpython is silently 
generating a new session if I try to store a dynamically generated class 
(new.classobj).

I checked into python cli and I saw pickle can't dump this kind of classes but 
it raises an exception which could have come handy.

Any reasons why they aren't raised in mod_python?

-- 
dharana