[Python-3000] Change to class construction?

[Ron Adam]

Guido van Rossum wrote:

> We could easily change this to return a
> writable mapping that's not a dict at all but a "view" on the locals
> just as dict.keys() returns a view on a dict. I don't see why locals()
> couldn't return the object used to represent the namespace, but I
> don't see that it couldn't be some view on that object either,
> depending on the details of the implementation.

This sounds great! I just recently wanted to pass a namespace to exec, but 
it refuses to accept anything but a dictionary for a local name space.

What I really want to do is pass an object as the local namespace.  And 
have the exec() use it complete with it's properties intact.  Passing 
obj.__dict__ doesn't work in this case.

Cheers,
    Ron