Where to post this message

And yes, the wiki is not really the place for this, but I can turn it into an FAQ later so no harm done.

The appropriate place is the mailman-users list as you mention: http://mail.python.org/mailman/listinfo/mailman-users

You can post while still a non-member, but you have to wait for one of the admins to approve your post, which can take a little while, so subscribing yourself first is definitely the best option.