I got the following traceback with yum-3.0.2-1.fc6

[Errno 4] Socket Error: timed out
Trying other mirror.
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in ?
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 172, in main
    base.doTransaction()
  File "/usr/share/yum-cli/cli.py", line 394, in doTransaction
    problems = self.downloadPkgs(downloadpkgs) 
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 693, in 
downloadPkgs
    adderror(po, str(e))
  File "/usr/lib/python2.4/site-packages/yum/Errors.py", line 27, in __str__
    return self.value
AttributeError: RepoError instance has no attribute 'value'