[Yum] Yum Python error

[gwilliams at mindspring.com (Gary Williams)]

I ran my normal yum update and now I'm getting the following:

[root@localhost root]# yum
Traceback (most recent call last):
  File "/usr/bin/yum", line 22, in ?
    import yummain
  File "/usr/share/yum/yummain.py", line 30, in ?
    import yumcomps
  File "/usr/share/yum/yumcomps.py", line 4, in ?
    import comps
  File "/usr/share/yum/comps.py", line 5, in ?
    import libxml2
  File "/usr/lib/python2.2/site-packages/libxml2.py", line 1, in ?
    import libxml2mod
ImportError: /usr/lib/python2.2/site-packages/libxml2mod.so: undefined
symbol: xmlXIncludeProcessFlags
[root@localhost root]#

Any clues what I should do about it?

Thanks.