From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050922 Fedora/1.0.7-1.1.fc4 Firefox/1.0.7

Description of problem:
Opened the Package Updater window (Applications -> System Tools -> Software Updater) and as it was retrieving update information an "Exception Occurred" pop-up appeared with the following information:

-----------------
Component: Software Updater
Summary: TBf0b8122f __init__.py:135:reposSetup:AttributeError: 'module' object has no attribute 'GroupError'

Traceback (most recent call last):
  File "/usr/sbin/pup", line 356, in ?
    main()
  File "/usr/sbin/pup", line 352, in main
    pup.run()
  File "/usr/sbin/pup", line 328, in run
    self.doRefresh()
  File "/usr/sbin/pup", line 160, in doRefresh
    self.reposSetup(pbar)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 135, in reposSetup
    except yum.Errors.GroupError:
AttributeError: 'module' object has no attribute 'GroupError'

Local variables in innermost frame:
callback: <pirut.Progress.PirutProgressCallback instance at 0xb7a1eb8c>
self: <__main__.PackageUpdater object at 0xb79f618c>
---------------------
After closing the exception window, Package Updater exited. (By the way, you might consider having the same menu and title name. The menu says Software Updater and window says Package Updater.)


Version-Release number of selected component (if applicable):
pirut-0.9.10-1

How reproducible:
Always

Steps to Reproduce:
1. From GNOME, select Applications -> System Tools -> Software Updater
2. Exception occurs while retrieving update information
3.
  

Actual Results:  After saving exception output, Software Updater closes.

Expected Results:  Should continue on to gather software update information.

Additional info:

My system was rebooted by mistake during an update. I ended up having both pirut-0.9.10-1 and pirut-0.9.8-1 installed at the same time. I removed the older package and rebooted, but the same error occurred.