need some help!

Hi all,
I had a small script that worked for a while, but now days on rhel4 it 
doesn't !!
*
consider this:

mi=*ts.dbMatch*("name","foo")
**for hdr in mi:  #*THE PROBLEM HERE!*
    **print "%s-%s-%s" % (hdr[’name’], hdr[’version’], hdr[’release’])

the script just doesn't go in the for loop!! what is the problem?

Thanks all
Basem Narmok
*