[Zope] Help

All: I've recently up to RH9 using python 2.1.1 with zope 2.4.3. However I get follow error when I start zope: Traceback (most recent call last): File "/var/www/z/z2.py", line 540, in ? import ZServer File "/var/www/z/ZServer/__init__.py", line 87, in ? from medusa.test import max_sockets File "/var/www/z/ZServer/medusa/test/max_sockets.py", line 2, in ? import socket File "/usr/local/lib/python2.1/socket.py", line 41, in ? from _socket import * ImportError: No module named _socket Can anyone help?