Description of problem: [root@localhost root]# yum check-update Traceback (most recent call last): File "/usr/share/yum/yummain.py", line 135, in ? main(sys.argv[1:]) File "/usr/share/yum/yummain.py", line 62, in main result, resultmsgs = base.doCommands() TypeError: unpack non-sequence Version-Release number of selected component (if applicable): 2.1.0-1 How reproducible: always Actual results: error Expected results: anything but an error Additional info: fixed on cli.py version 1.59 (diff on url)