I have a problem using yum. it gives me the following error [root at mail1 src]# yum update yum There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: /usr/lib/python2.3/site-packages/libxml2mod.so: undefined symbol: xmlNewDocPI Please install a package which provides this module, or verify that the module is installed correctly. It's possible that the above module doesn't match the current version of Python, which is: 2.3.4 (#1, Mar 10 2006, 06:12:09) [GCC 3.4.5 20051201 (Red Hat 3.4.5-2)] If you cannot solve this problem yourself, please go to the yum faq at: http://wiki.linux.duke.edu/YumFaq I have looked in Internet and others forums but i couldn't find any answer on how to fix this error.