[Yum] Yum quit working after using to update krb 5 libs.

[phorgan1 at yahoo.com (Patrick Horgan)]

I think I've shot myself in the foot while updating with yum...I've 
gotten yum in a state where it won't work (details to follow) while 
updating some packages.  I think it might have been when krb5 was 
updated.  Is there any easy way out of this mess?

Here's my versions:

rpm-4.2.3-13
yum-2.0.8-1
fedora-release-1-3
redhat-release-9-3

Here's what happens when I try to run yum:

Traceback (most recent call last):
  File "/usr/bin/yum", line 22, in ?
    import yummain
  File "/usr/share/yum/yummain.py", line 22, in ?
    import clientStuff
  File "/usr/share/yum/clientStuff.py", line 25, in ?
    import pkgaction
  File "/usr/share/yum/pkgaction.py", line 25, in ?
    import rpmUtils
  File "/usr/share/yum/rpmUtils.py", line 12, in ?
    from urlgrabber import URLGrabError
  File "/usr/share/yum/urlgrabber.py", line 21, in ?
    import urllib2
  File "/usr/lib/python2.2/urllib2.py", line 101, in ?
    import ftplib
  File "/usr/lib/python2.2/ftplib.py", line 68, in ?
    all_errors = (Error, socket.error, IOError, EOFError)
AttributeError: 'module' object has no attribute 'error'