[CentOS] Yum Error on CentOS 4_64 / libexpat Issues

Dear all
 
I had an issue on CentOS 4_64 with yum that I would like some input on. 
 
When running yum, the following errors appear:
 
 
Traceback (most recent call last):
File "/usr/bin/yum", line 6, in ? 
import yummain
File "/usr/share/yum-cli/yummain.py", line 23, in ? 
import yum
File "__init__.py", line 33, in ?
File "groups.py", line 3, in ?
File "comps.py", line 5, in ?
File "/usr/lib64/python2.3/site-packages/libxml2.py", line 1, in ? 
import libxml2mod
ImportError: /usr/lib64/python2.3/site-packages/libxml2mod.so: undefined
symbol: xmlNewDocPI 
 
 
I had tried downloading all the various libxslt* and libxml2* and python and
python-devel rpms and running
 
rpm -Uvh --oldpackage --install *.rpm 
 
Nothing seems to work however. Anyone with any ideas? 
 
 
 
I had a separate issue which may be linked (or not). When running
/sbin/ldconfig, the folllowing message appears. 
 
ldconfig: libraries libexpat.so.0 and libexpat.so.0.4.0 in directory
/usr/lib have same soname but different type.
 
root@ <mailto:root at 207-150-176-14>  [/usr/lib]# ls -all libexpat*
-rw-r--r--  1 root root 432298 May 11 01:51 libexpat.a
-rwxr-xr-x  1 root root    706 May 11 01:51 libexpat.la*
lrwxrwxrwx  1 root root     17 May 11 02:19 libexpat.so ->
libexpat.so.0.5.0*
lrwxrwxrwx  1 root root     17 May 11 03:15 libexpat.so.0 ->
libexpat.so.0.5.0*
-rwxr-xr-x  1 root root 261635 May 11 01:51 libexpat.so.0.4.0*
-rwxr-xr-x  1 root root 122048 Feb 21 20:00 libexpat.so.0.5.0*

 
 
Any insight or guidance is appreciated.
 
 
 
regards
 
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