Mailman power user trick

At work, we use the Mailman mailing list management program. We needed to change 700+ users from digest to non-digest format in a Mailman mailing list. Here's how you do it:

# ./withlist -l org-announce

Loading list org-announce (locked)
The variable `m' is the org-announce MailList instance
>>> from Mailman import mm_cfg
>>> for member in m.getDigestMemberKeys():
...     m.setMemberOption(member, mm_cfg.Digests, 0)
...
>>> m.Save()
>>>
Unlocking (but not saving) list: org-announce
Finalizing

The only tricky part of this is actually finding the commands to run. I did a search through the Mailman archives. I used the searchable version of the Mailman users' list located here: http://www.mail-archive.com/mailman-users@python.org/

I did a search for "digest withlist". Withlist is the swiss army knife tool of Mailman. The recipe above was provided by Mark Sapiro. Thanks to Mark and to all the Mailman gurus!