Description of problem:
I created new channel with packages. If I installed some package from this channel before event, when metadata was generated by taskomatic,  I got Error "local action status: ((6,), 'Fatal error in Python code occured', {})"

Version-Release number of selected component (if applicable):
yum-rhn-plugin-0.9.1-40.el6.noarch

How reproducible:
always

Steps to Reproduce:
1. create channel with packages
2. install new package from this channel  (before  taskomatic create repository metadata)
3. rhn_check -vv
  
Actual results:
>> tail /var/log/up2date | grep -i "error"

    raise Errors.RepoError, msg
<class 'yum.Errors.RepoError'>: Cannot retrieve repository metadata (repomd.xml) for repository: test1352470635. Please verify its path and try again
up2date D: local action status: ((6,), 'Fatal error in Python code occured', {})


Expected results:
Better message than Fatal error