[Spambayes] sb_imapfilter.py AssertionError: hamcount <= nham

[Tony Lownds]

Hi,

When I classify through sb_imapfilter.py, I am getting an 
AssertionError. Any ideas? I am using spambayes from CVS; courier 
IMAP; python 2.2.2; and a fresh database. See below for commands.

Thanks
-Tony

[tony ~]$ rm hammie.db spambayes.messageinfo.db
[tony ~]$ /usr/bin/sb_imapfilter.py -t
SpamBayes IMAP Filter Beta1, version 0.1 (September 2003),
using SpamBayes IMAP Filter Web Interface Alpha2, version 0.02
and engine SpamBayes Beta2, version 0.2 (July 2003).

Loading state from hammie.db database
hammie.db is a new database
Loading database hammie.db... Done.
Training
    Training ham folder INBOX.Ham
**************       14 trained.
    Training spam folder INBOX.Spam
********************************************       44 trained.
Persisting hammie.db state in database
Training took 2.87554502487 seconds, 58 messages were trained
[tony ~]$ /usr/bin/sb_imapfilter.py -c
SpamBayes IMAP Filter Beta1, version 0.1 (September 2003),
using SpamBayes IMAP Filter Web Interface Alpha2, version 0.02
and engine SpamBayes Beta2, version 0.2 (July 2003).

Loading state from hammie.db database
hammie.db is an existing database, with 44 spam and 10 ham
Loading database hammie.db... Done.
Classifying 
*.Traceback (most recent call last):
   File "/usr/bin/sb_imapfilter.py", line 821, in ?
     run()
   File "/usr/bin/sb_imapfilter.py", line 811, in run
     imap_filter.Filter()
   File "/usr/bin/sb_imapfilter.py", line 676, in Filter
     self.unsure_folder)
   File "/usr/bin/sb_imapfilter.py", line 595, in Filter
     evidence=True)
   File "/usr/lib/python2.2/site-packages/spambayes/classifier.py", 
line 158, in chi2_spamprob
     clues = self._getclues(wordstream)
   File "/usr/lib/python2.2/site-packages/spambayes/classifier.py", 
line 395, in _getclues
     prob = self.probability(record)
   File "/usr/lib/python2.2/site-packages/spambayes/classifier.py", 
line 242, in probability
     assert hamcount <= nham
AssertionError