Logged In: YES 
user_id=44345

Further inspection of recent python-checkins activity shows
a large change to the weakref stuff by Fred on July 2nd
(more recent than Greg's change to bsddb on June 28th), so
reassigning to him in case it's a weakref problem.
I've been so-far unable to back out the change in my
repository (subsequent changes to some of the files make
that difficult), so I can't verify the weakref changes are
the root of my problems, but they seem pretty wide-ranging,
so that's my guess.