[root@mediceo6NB leroy]# yum check-update
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:
No module named urlgrabber
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:
2.6.2 (r262:71600, Jun 4 2010, 18:28:58)
[GCC 4.4.3 20100127 (Red Hat 4.4.3-4)]
If you cannot solve this problem yourself, please go to
the yum faq at:
http://yum.baseurl.org/wiki/Faq