#44 ImportError undefined symbol:

[Robert Butler]

I installed and am trying run DenyHosts but I am getting the following error:
starting DenyHosts: /usr/bin/env python /usr/local/bin/denyhosts.py --daemon
--config=/usr/local/denyhosts/denyhosts.cfg
Traceback (most recent call last):
File "/usr/local/bin/denyhosts.py", line 15, in <module>
from DenyHosts.deny_hosts import DenyHosts
File "/usr/local/lib/python2.5/site-packages/DenyHosts/deny_hosts.py", line 5,
in <module>
import gzip
File "/usr/local/lib/python2.5/gzip.py", line 9, in <module>
import zlib
ImportError: /usr/local/lib/python2.5/lib-dynload/zlib.so: undefined symbol: inf
lateCopy

Any help would be greatly appreciated.
Thanks