#!/usr/bin/python -tt

import yum

my = yum.YumBase()
my.conf.showdupesfromrepos = 1

for ipkg in my.rpmdb:
    apkgs = my.pkgSack.searchPkgTuple(ipkg.pkgtup)
    if len(apkgs) < 1:
        print "could not find package %s in any repository" % ipkg
    else:
        apkg = apkgs[0]
        print '%s from repo %s' % (ipkg, apkg.repoid)