Traceback (most recent call last):
  File "/usr/bin/yum", line 27, in <module>
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 75, in main
    base.getOptionsConfig(args)
  File "/usr/share/yum-cli/cli.py", line 299, in getOptionsConfig
    self.parseCommands() # before we return check over the base command + args
  File "/usr/share/yum-cli/cli.py", line 47, in __init__
    yum.Errors.YumBaseError.__init__(self)
  File "/var/lib/python-support/python2.5/yum/Errors.py", line 25, in __init__
    self.args = args
TypeError: 'NoneType' object is not iterable