Python 2.5 / 2.2 import "errno" fails on AIX Server

I am trying to import the "xmlrpclib" Module from Activepython 2.5 in einer older Python 2.2.
Already achived this on a SUSE Linux server, but I am now required to do it on a AIX server.
Resolved the first few error messages by copying files from Activepython to Python but
I can't get the following error message resolved. The Module "httplib" tries to import "errno".

The Test script runs using Activepython ok, using the same script with Python produces the following error.
Does somebody have any ideas?

File "/cx/sbl/xmlrpclib.py", line 1176, in request
h = self.make_connection(host)
File "/cx/sbl/xmlrpclib.py", line 1251, in make_connection
import httplib
File "/cx/sbl/httplib.py", line 69, in ?
import errno