(any)dbm module lacks a context manager

[python.list at tim.thechases.com]

I don't know if this has been remedied in a more recent version than
I've got on my box (Debian Stable), but it seems like it should work
out of the box:

Python 3.1.3 (r313:86834, Nov 28 2010, 10:01:07) 
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import dbm
>>> with dbm.open("mydb", 'c') as d:
...     d["hello"] = "world"
... 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: '_dbm.dbm' object has no attribute '__exit__'


I'm guessing it's an easy fix? (or even already fixed)

-tkc