Description of problem:

yum clean all resulted in a traceback, showing that the yum code is using some
code in ElementTree that doesn't exist in a few instances.

Version-Release number of selected component (if applicable):


How reproducible:

Not very, I've seen it once or twice.  Running again seems to clear the problem,
though there may be other code relying on this

Steps to Reproduce:
1.   not sure, but the traceback should indicate the problem
2.
3.
  
Actual results:

traceback showing usage of code not in cElementTree

Expected results:

don't call that method

Additional info:

   1.
      Traceback (most recent call last):
   2.
         File "/usr/bin/yum", line 4 in <module>
   3.
             import yum
   4.
         File "/usr/lib/python2.5/site-packages/yum/__init__.py", line 36 in
<module>
   5.
             import comps
   6.
         File "/usr/lib/python2.5/site-packages/yum/comps.py", line 22, in <module>
   7.
             iterparse = cElementTree.iterparse
   8.
      AttributeError: 'module' object has no attribute 'iterparse'