[Python-3000] Is this a bug with list comprehensions or not?

[Raymond Hettinger]

From: "Guido van Rossum" <guido at python.org>
> To be sure, IMO the generator expression is wrong in interpreting the
> StopIteration exception! It should fail the same way the list
> comprehension fails.

When exercising 2-to-3 on Zodb at the EuroPython sprints, we also found another oddity.  This code works in 2.6 but fails in 3.0 (it 
looks for the free variable in the global scope instead of the enclosing local scope):

class A(object):
    v = 8
    x = [v for i in range(6)]



Raymond