On Oct 30, 2009, at 8:43 AM, Adriano Frare wrote:

Dear Friends,

Today , I ran command yum update and  I received follow error below.

======================= BEGIN =========
Loaded plugins: fastestmirror
Determining fastest mirrors
Traceback (most recent call last):
 File "/usr/bin/yum", line 29, in ?
   yummain.user_main(sys.argv[1:], exit_code=True)
 File "/usr/share/yum-cli/yummain.py", line 229, in user_main
   errcode = main(args)
<snip>

Whenever yum gets weird I usually run "yum clean all" and everything gets better.  CentOS 5.4 is out so if you haven't upgraded yet, check the release notes before running your next "yum update." 

Thanks,

Dianne