[Python-3000] self-contained exceptions

[Phillip J. Eby]

At 07:47 AM 1/10/2007 -0800, Guido van Rossum wrote:
>BTW perhaps we should add the same semantics and syntax to 'with expr
>as var'? I can't think of a reasonable use case
[snip]
>... for using anything
>more complex than a local variable, BTW.)

with multi(ctx1, ctx2, ...)  as var1, var2, ...:

(if multi is a function that returns a context manager wrapping the other 
contexts and returning the tuple their __enter__ values).