-import os
import sys
-import datetime
-import time
from sfa.util.config import Config
-from sfa.util.xrn import Xrn, get_leaf, get_authority, hrn_to_urn
-from sfa.util.plxrn import PlXrn, slicename_to_hrn, email_to_hrn, hrn_to_pl_slicename
+from sfa.util.xrn import get_authority, hrn_to_urn
+from sfa.planetlab.plxrn import PlXrn
-from sfa.senslab.LDAPapi import LDAPapi
from sfa.senslab.slabdriver import SlabDriver
from sfa.senslab.slabpostgres import SliceSenslab, slab_dbsession
from sfa.storage.alchemy import dbsession
from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, RegUser, RegKey
-from sfa.storage.dbschema import DBSchema
+