Exception while using publish/subscribe

Hi. I'm getting an exception using thoonk with publish/subscribe. I'm using FreeBSD, Python 2.6.7 and redis 2.2.11.

What am I doing wrong? Thanks!

$ pip freeze | grep redis
hiredis==0.1.0
redis==2.2.4
$ pip freeze | grep thoonk
-e git+https://github.com/andyet/thoonk.py.git@2ba5592da65357313ecddbbf041b28183c95c0c0#egg=thoonk-dev

$ python
>>> import redis
>>> r = redis.Redis(db=10)
>>> r.flushdb()
>>> ^D

$ cat test_thoonk.py
#!/usr/bin/env python

import thoonk

def publish_handler(feedname, item, id):
    print 'test'

def main():
    foo = thoonk.Thoonk(db=10, listen=True)
    foo.register_handler('publish_notice', publish_handler)
    feed = foo.feed('test')
    feed.publish('1')
    feed.publish('23')
    feed.publish('42')

if __name__ == '__main__':
    main()

$ python test_thoonk.py
test
test
Exception in thread Thread-1 (most likely raised during interpreter shutdown):$

The example also doesn't work on OSX Lion, but no exception is thrown. I used (the shipped) Python 2.7.1 and the same python packages from pypi. This is the output (printing the id this time):

$ python test_thoonk.py 
9fe6ae19437046cd8aaea74fd52024c3
d792d54c11274314ae2ccadd3e91f2e4
8d1659e7c2ed4cc39e67fedd9402133b
$ python test_thoonk.py 
78c2ac18008c49d0ba0c42b49963f630
e5ae43493713446999d1b561f94de20b
ef7dedb27c44414ba925a395009cfdb8

$ python test_thoonk.py 
e137224bd55741328c4712577b946916
211f2061a13a4a9d96d6e34d1ca63688

So, it's returning three items most of the time, but sometimes only two. And adds a newline randomly.

What can I do to supply you with more useful information?

Update: After a few iterations, It's throwing the same exception. This time with a message:

$ python test_thoonk.py 
e164b4f2a54c40338987fc42124794d9
2ec93b47b93d4424a2492f8564e13bd2
Exception in thread Thread-1 (most likely raised during interpreter shutdown):
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 530, in __bootstrap_inner
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 483, in run
  File "/Users/kai/.virtualenvs/bla/src/thoonk/thoonk/pubsub.py", line 331, in listen
  File "/Users/kai/.virtualenvs/bla/lib/python2.7/site-packages/redis/client.py", line 1219, in listen
  File "/Users/kai/.virtualenvs/bla/lib/python2.7/site-packages/redis/client.py", line 259, in parse_response
  File "/Users/kai/.virtualenvs/bla/lib/python2.7/site-packages/redis/connection.py", line 161, in read_response
<type 'exceptions.TypeError'>: 'NoneType' object is not callable

andyet / thoonk.py

Exception while using publish/subscribe #7