"import socket" error

[akbarhome at gmail.com]

Hi,

I am following this tutorial
https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=dw-linux-pysocks&S_TACT=105AGX59&S_CMP=GR&ca=dgr-lnxw07PythonSockets
( free reg. req. )

The article told me to do this:

[camus]$ python
Python 2.4 (#1, Feb 20 2005, 11:25:45)
[GCC 3.2.2 20030222 (Red Hat Linux 3.2.2-5)] on linux2
Type "help", "copyright", "credits" or "license" for more
   information.
>>> import socket
>>> socket.gethostbyname('www.ibm.com')
'129.42.19.99'
>>>

When I try it, I get this error:
>>> import socket
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/usr/lib/python2.4/socket.py", line 1, in ?
    # Wrapper module for _socket, providing some additional facilities
  File "/usr/lib/python2.4/SocketServer.py", line 274, in ?
    class TCPServer(BaseServer):
  File "/usr/lib/python2.4/SocketServer.py", line 317, in TCPServer
    address_family = socket.AF_INET
AttributeError: 'module' object has no attribute 'AF_INET'
>>>


Why? Thank you.