new style exception handleing

[Peter Hansen]

Ola Natvig wrote:
> Does anybody know why it's not possible to raise Exceptions which are 
> types (new-style-classes). I know all standard exceptions are classic 
> classes, but if you make a custom exception which both inherits from a 
> exception class and a new-style one the it causes a type error when raised.
> 
>  >>> class b(Exception, object): pass

This might not help you, but have you considered just making
your old-style class *contain a reference* to an instance
of whatever new-style class you want it to contain?  Then
the issue goes away.

I can't actually think of a reason to need to base an
exception on a new-style class, but perhaps you have a
good one...

-Peter