Something

#!/usr/bin/python

from conary import conaryclient
from conary import versions

# the conary client has a lot of update logic, etc
cc = conaryclient.ConaryClient()

# the netclient is a slightly thinner interface to the repository itself
netClient = cc.getRepos()

labelToQuery = versions.Label("musicpd.rpath.org@rpl:1")
print netClient.troveNames(labelToQuery)