[Zope] The best way to pack and close PickleDictionary?

[Kevin Ehmka]

Previously, using Bobo, I created several PickleDictionaries for use on
my website. Regularly, I would pack these databases before ending the
CGI call since they were altered very frequently.

Now, using Zope, I find that I cannot pack them without receiving error
messages telling me I'm attempting to write while the database is in
read-only mode (it appears the Zope threads out the packing). I also
found that Zope caches these databases and issues an error when I
attempt to open them again.

What is the best way to pack and close these databases? How can I query
which db's have been opened? Even if I do keep a mapping of previously
opened db's, how can I find out if Zope is closing them. 

Any help is appreciated. 

Thanks,
Kevin
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