contextlib.nested deprecated

Fri Mar 23 05:56:35 EDT 2012

Hi,
I understand why contextlib.nested is deprecated.
But if I write a program for an old python version w/o the multiple form 
of with, I have (nearly) no other choice.
In order to avoid the following construct to fail:
 with nested(open("f1"), open("f2")) as (f1, f2):
(f1 wouldn't be closed if opening f2 fails)
I could imagine writing a context manager which moves initialization 
into its __enter__:
 @contextmanager
 def late_init(f, *a, **k):
 r = f(*a, **k)
 with r as c: yield c
Am I right thinking that
 with nested(late_init(open, "f1"), late_init(open, "f2")) as (f1, f2):
will suffice here to make it "clean"?
TIA,
Thomas