[Python-Dev] New-style exceptions

[Tim Peters]

[Michael Hudson]
> Sorry, was too obscure.  One of the doctests pickles a couple
> instances of PicklingError and disassembles the pickle.  That's not
> going to stay the same past an old-style/new-style transition.

That's no problem.  The real point of that part of the test is to
exercise the different pickle protocols on an instance of a "foreign"
(not defined in the same module) class.  Any foreign class would do as
well  Creating an instance of pickle.PicklingError was just
convenient; there was no intent to pick on an exception class.  IOW,
if this goes forward, it's no problem to change the test.