Fix bug:range() is not same in py3.x and py2.x

in python3.x, there is no method named xrange(),
it has replaced by range(),which is equal to xrange() in python2.x.
so we must fix this issue.we use six module to fix this issue.

Change-Id: I9cee3f0df2d8abbf6f66d7c5a3a0fed98df622e8
Closes-Bug: #1268439

neutron/db/sqlalchemyutils.py

@@ -15,6 +15,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from six.moves import xrange
 import sqlalchemy
 from sqlalchemy.orm.properties import RelationshipProperty
 

neutron/plugins/bigswitch/tests/test_server.py

@@ -27,6 +27,7 @@ from __future__ import print_function
 import json
 import re
 
+from six.moves import xrange
 from wsgiref.simple_server import make_server
 
 

neutron/plugins/brocade/vlanbm.py

@@ -21,6 +21,7 @@
 
 
 """A Vlan Bitmap class to handle allocation/de-allocation of vlan ids."""
+from six.moves import xrange
 
 from neutron.common import constants
 from neutron.plugins.brocade.db import models as brocade_db

neutron/plugins/cisco/db/n1kv_db_v2.py

@@ -21,6 +21,7 @@
 
 import netaddr
 import re
+from six.moves import xrange
 from sqlalchemy.orm import exc
 from sqlalchemy.sql import and_
 

neutron/plugins/hyperv/db.py

@@ -16,6 +16,7 @@
 #    under the License.
 # @author: Alessandro Pilotti, Cloudbase Solutions Srl
 
+from six.moves import xrange
 from sqlalchemy.orm import exc
 
 from neutron.common import exceptions as n_exc

neutron/plugins/linuxbridge/db/l2network_db_v2.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-
+from six.moves import xrange
 from sqlalchemy.orm import exc
 
 from neutron.common import exceptions as n_exc

neutron/plugins/ml2/drivers/type_gre.py

@@ -14,6 +14,7 @@
 #    under the License.
 
 from oslo.config import cfg
+from six.moves import xrange
 import sqlalchemy as sa
 from sqlalchemy.orm import exc as sa_exc
 

neutron/plugins/ml2/drivers/type_vlan.py

@@ -16,6 +16,7 @@
 import sys
 
 from oslo.config import cfg
+from six.moves import xrange
 import sqlalchemy as sa
 
 from neutron.common import constants as q_const

neutron/plugins/mlnx/db/mlnx_db_v2.py

@@ -15,6 +15,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from six.moves import xrange
 from sqlalchemy.orm import exc
 
 from neutron.common import exceptions as n_exc

neutron/plugins/openvswitch/agent/ovs_neutron_agent.py

@@ -21,6 +21,7 @@ import time
 import eventlet
 import netaddr
 from oslo.config import cfg
+from six.moves import xrange
 
 from neutron.agent import l2population_rpc
 from neutron.agent.linux import ip_lib

neutron/plugins/openvswitch/ovs_db_v2.py

@@ -13,6 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from six.moves import xrange
 from sqlalchemy import func
 from sqlalchemy.orm import exc
 

neutron/services/loadbalancer/drivers/haproxy/cfg.py

@@ -17,6 +17,7 @@
 # @author: Mark McClain, DreamHost
 
 import itertools
+from six.moves import xrange
 
 from neutron.agent.linux import utils
 from neutron.plugins.common import constants as qconstants

neutron/tests/functional/agent/linux/test_async_process.py

@@ -17,6 +17,8 @@
 import eventlet
 import fixtures
 
+from six.moves import xrange
+
 from neutron.agent.linux import async_process
 from neutron.tests import base
 

neutron/tests/unit/bigswitch/test_router_db.py

@@ -23,6 +23,7 @@ import copy
 
 from mock import patch
 from oslo.config import cfg
+from six.moves import xrange
 from webob import exc
 
 from neutron.common.test_lib import test_config

neutron/tests/unit/cisco/n1kv/test_n1kv_db.py

@@ -18,6 +18,7 @@
 # @author: Abhishek Raut, Cisco Systems Inc.
 # @author: Rudrajit Tapadar, Cisco Systems Inc.
 
+from six.moves import xrange
 from sqlalchemy.orm import exc as s_exc
 from testtools import matchers
 

neutron/tests/unit/linuxbridge/test_lb_db.py

@@ -14,6 +14,7 @@
 # limitations under the License.
 
 from oslo.config import cfg
+from six.moves import xrange
 import testtools
 from testtools import matchers
 

neutron/tests/unit/ml2/test_type_gre.py

@@ -13,6 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from six.moves import xrange
 import testtools
 from testtools import matchers
 

neutron/tests/unit/ml2/test_type_vxlan.py

@@ -15,6 +15,7 @@
 # @author: Kyle Mestery, Cisco Systems, Inc.
 
 from oslo.config import cfg
+from six.moves import xrange
 import testtools
 from testtools import matchers
 

neutron/tests/unit/mlnx/test_mlnx_db.py

@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from six.moves import xrange
 from testtools import matchers
 
 from neutron.common import exceptions as n_exc

neutron/tests/unit/nec/test_nec_agent.py

@@ -21,6 +21,7 @@ import time
 
 import mock
 from oslo.config import cfg
+from six.moves import xrange
 import testtools
 
 from neutron.agent.linux import ovs_lib

neutron/tests/unit/nec/test_trema_driver.py

@@ -18,6 +18,7 @@
 import random
 
 import mock
+from six.moves import xrange
 
 from neutron.openstack.common import uuidutils
 from neutron.plugins.nec.common import ofc_client

neutron/tests/unit/openvswitch/test_ovs_db.py

@@ -17,6 +17,7 @@
 
 import mock
 from oslo.config import cfg
+from six.moves import xrange
 import testtools
 from testtools import matchers
 

neutron/tests/unit/services/loadbalancer/drivers/test_agent_driver_base.py

@@ -19,6 +19,7 @@
 import contextlib
 
 import mock
+from six.moves import xrange
 from webob import exc
 
 from neutron.common import exceptions

neutron/tests/unit/test_post_mortem_debug.py

@@ -18,6 +18,7 @@
 import sys
 
 import mock
+from six.moves import xrange
 
 from neutron.tests import base
 from neutron.tests import post_mortem_debug