Further to my insane ramblings the other day about trying to train on dbx files with the web interface, the only way I could get oe_mailbox.convertToMbox() to work was by adding:

from time import *

at the top of the file. Otherwise you get "global symbol strftime not found"

Sorry, this is my fault. I've checked in a fix (oe_mailbox.py 1.6). Thanks for pointing it out! =Tony Meyer