# yum
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:
No module named yum
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:
2.6.4 (r264:75706, Jan 5 2010, 22:59:32)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-44)]