diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index ee525e7..37b1224 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -15,9 +15,9 @@
 
 import base64
 import logging
+import urlparse
 
 import testtools
-import urlparse
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
diff --git a/tempest/api/compute/v3/servers/test_server_actions.py b/tempest/api/compute/v3/servers/test_server_actions.py
index 4404043..27ac5b6 100644
--- a/tempest/api/compute/v3/servers/test_server_actions.py
+++ b/tempest/api/compute/v3/servers/test_server_actions.py
@@ -14,9 +14,9 @@
 #    under the License.
 
 import logging
+import urlparse
 
 import testtools
-import urlparse
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
diff --git a/tempest/api/compute/volumes/test_volumes_get.py b/tempest/api/compute/volumes/test_volumes_get.py
index c3d6ba6..708524c 100644
--- a/tempest/api/compute/volumes/test_volumes_get.py
+++ b/tempest/api/compute/volumes/test_volumes_get.py
@@ -13,11 +13,13 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from testtools import matchers
+
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
-from testtools import matchers
+
 
 CONF = config.CONF
 
diff --git a/tempest/api/identity/admin/v3/test_trusts.py b/tempest/api/identity/admin/v3/test_trusts.py
index 1561a6e..886c808 100644
--- a/tempest/api/identity/admin/v3/test_trusts.py
+++ b/tempest/api/identity/admin/v3/test_trusts.py
@@ -12,6 +12,7 @@
 
 import datetime
 import re
+
 from tempest.api.identity import base
 from tempest import auth
 from tempest import clients
diff --git a/tempest/api/object_storage/test_object_services.py b/tempest/api/object_storage/test_object_services.py
index b21aa44..8b74b7e 100644
--- a/tempest/api/object_storage/test_object_services.py
+++ b/tempest/api/object_storage/test_object_services.py
@@ -17,10 +17,11 @@
 import hashlib
 import random
 import re
-import six
 import time
 import zlib
 
+import six
+
 from tempest.api.object_storage import base
 from tempest.common import custom_matchers
 from tempest.common.utils import data_utils
diff --git a/tempest/api/orchestration/base.py b/tempest/api/orchestration/base.py
index 531df2d..cfebc2c 100644
--- a/tempest/api/orchestration/base.py
+++ b/tempest/api/orchestration/base.py
@@ -11,6 +11,7 @@
 #    under the License.
 
 import os.path
+
 import yaml
 
 from tempest import clients
diff --git a/tempest/api/orchestration/stacks/test_neutron_resources.py b/tempest/api/orchestration/stacks/test_neutron_resources.py
index 27c6196..86815b3 100644
--- a/tempest/api/orchestration/stacks/test_neutron_resources.py
+++ b/tempest/api/orchestration/stacks/test_neutron_resources.py
@@ -12,6 +12,7 @@
 
 
 import logging
+
 import netaddr
 
 from tempest.api.orchestration import base
diff --git a/tempest/api/orchestration/stacks/test_nova_keypair_resources.py b/tempest/api/orchestration/stacks/test_nova_keypair_resources.py
index e3ffdaf..c6f880b 100644
--- a/tempest/api/orchestration/stacks/test_nova_keypair_resources.py
+++ b/tempest/api/orchestration/stacks/test_nova_keypair_resources.py
@@ -56,10 +56,10 @@
                                                    ext=self._tpl_type)
         resources = [('KeyPairSavePrivate',
                       nova_keypair_template[self._resource][
-                      'KeyPairSavePrivate'][self._type]),
+                          'KeyPairSavePrivate'][self._type]),
                      ('KeyPairDontSavePrivate',
                       nova_keypair_template[self._resource][
-                      'KeyPairDontSavePrivate'][self._type])]
+                          'KeyPairDontSavePrivate'][self._type])]
 
         for resource_name, resource_type in resources:
             resource = self.test_resources.get(resource_name, None)
diff --git a/tempest/api/queuing/test_queues.py b/tempest/api/queuing/test_queues.py
index e43178a..b340b60 100644
--- a/tempest/api/queuing/test_queues.py
+++ b/tempest/api/queuing/test_queues.py
@@ -14,6 +14,7 @@
 # limitations under the License.
 
 import logging
+
 from six import moves
 from testtools import matchers
 
diff --git a/tempest/api/volume/test_volumes_list.py b/tempest/api/volume/test_volumes_list.py
index b8a2faa..ff225a2 100644
--- a/tempest/api/volume/test_volumes_list.py
+++ b/tempest/api/volume/test_volumes_list.py
@@ -15,11 +15,12 @@
 #    under the License.
 import operator
 
+from testtools import matchers
+
 from tempest.api.volume import base
 from tempest.common.utils import data_utils
 from tempest.openstack.common import log as logging
 from tempest import test
-from testtools import matchers
 
 LOG = logging.getLogger(__name__)
 
diff --git a/tempest/api_schema/response/compute/v2/hypervisors.py b/tempest/api_schema/response/compute/v2/hypervisors.py
index 7ad81c0..1878881 100644
--- a/tempest/api_schema/response/compute/v2/hypervisors.py
+++ b/tempest/api_schema/response/compute/v2/hypervisors.py
@@ -13,8 +13,10 @@
 #    under the License.
 
 import copy
+
 from tempest.api_schema.response.compute import hypervisors
 
+
 hypervisors_servers = copy.deepcopy(hypervisors.common_hypervisors_detail)
 
 # Defining extra attributes for V3 show hypervisor schema
diff --git a/tempest/api_schema/response/compute/v3/hypervisors.py b/tempest/api_schema/response/compute/v3/hypervisors.py
index 9a9a9f7..b36ae7e 100644
--- a/tempest/api_schema/response/compute/v3/hypervisors.py
+++ b/tempest/api_schema/response/compute/v3/hypervisors.py
@@ -13,8 +13,10 @@
 #    under the License.
 
 import copy
+
 from tempest.api_schema.response.compute import hypervisors
 
+
 list_hypervisors_detail = copy.deepcopy(
     hypervisors.common_list_hypervisors_detail)
 # Defining extra attributes for V3 show hypervisor schema
diff --git a/tempest/api_schema/response/compute/v3/servers.py b/tempest/api_schema/response/compute/v3/servers.py
index 230de5f..d0edd44 100644
--- a/tempest/api_schema/response/compute/v3/servers.py
+++ b/tempest/api_schema/response/compute/v3/servers.py
@@ -55,9 +55,7 @@
         'mac_addr': {'type': 'string'}
     })
 addresses_v3['patternProperties']['^[a-zA-Z0-9-_.]+$']['items'][
-    'required'].extend(
-        ['type', 'mac_addr']
-    )
+    'required'].extend(['type', 'mac_addr'])
 
 update_server = copy.deepcopy(servers.base_update_get_server)
 update_server['response_body']['properties']['server']['properties'].update({
diff --git a/tempest/auth.py b/tempest/auth.py
index 5df6224..c84ad6b 100644
--- a/tempest/auth.py
+++ b/tempest/auth.py
@@ -18,16 +18,17 @@
 import datetime
 import exceptions
 import re
-import six
 import urlparse
 
+import six
+
 from tempest import config
+from tempest.openstack.common import log as logging
 from tempest.services.identity.json import identity_client as json_id
 from tempest.services.identity.v3.json import identity_client as json_v3id
 from tempest.services.identity.v3.xml import identity_client as xml_v3id
 from tempest.services.identity.xml import identity_client as xml_id
 
-from tempest.openstack.common import log as logging
 
 CONF = config.CONF
 LOG = logging.getLogger(__name__)
diff --git a/tempest/cli/simple_read_only/test_cinder.py b/tempest/cli/simple_read_only/test_cinder.py
index 04971c1..3a9a7a6 100644
--- a/tempest/cli/simple_read_only/test_cinder.py
+++ b/tempest/cli/simple_read_only/test_cinder.py
@@ -15,6 +15,7 @@
 
 import logging
 import re
+
 import testtools
 
 from tempest import cli
diff --git a/tempest/cli/simple_read_only/test_heat.py b/tempest/cli/simple_read_only/test_heat.py
index bd79fa6..8e413a9 100644
--- a/tempest/cli/simple_read_only/test_heat.py
+++ b/tempest/cli/simple_read_only/test_heat.py
@@ -12,6 +12,7 @@
 
 import json
 import os
+
 import yaml
 
 import tempest.cli
diff --git a/tempest/cmd/javelin.py b/tempest/cmd/javelin.py
index 3616a82..d401f6b 100755
--- a/tempest/cmd/javelin.py
+++ b/tempest/cmd/javelin.py
@@ -19,13 +19,13 @@
 
 """
 
+import argparse
 import logging
 import os
 import sys
 import unittest
-import yaml
 
-import argparse
+import yaml
 
 import tempest.auth
 from tempest import config
@@ -250,7 +250,7 @@
                     break
             self.assertNotEqual(count, 59,
                                "Server %s is not pingable at %s" % (
-                               server['name'], addr))
+                                   server['name'], addr))
 
     def check_volumes(self):
         """Check that the volumes are still there and attached."""
diff --git a/tempest/cmd/run_stress.py b/tempest/cmd/run_stress.py
index 07f3f66..a3f185c 100755
--- a/tempest/cmd/run_stress.py
+++ b/tempest/cmd/run_stress.py
@@ -18,13 +18,14 @@
 import inspect
 import json
 import sys
-from testtools import testsuite
 try:
     from unittest import loader
 except ImportError:
     # unittest in python 2.6 does not contain loader, so uses unittest2
     from unittest2 import loader
 
+from testtools import testsuite
+
 from tempest.openstack.common import log as logging
 from tempest.stress import driver
 
diff --git a/tempest/cmd/verify_tempest_config.py b/tempest/cmd/verify_tempest_config.py
index 673da4f..70fd27b 100755
--- a/tempest/cmd/verify_tempest_config.py
+++ b/tempest/cmd/verify_tempest_config.py
@@ -269,7 +269,7 @@
                 if getattr(CONF.service_available, codename_match[cfgname]):
                     print('Endpoint type %s not found either disable service '
                           '%s or fix the catalog_type in the config file' % (
-                          catalog_type, codename_match[cfgname]))
+                              catalog_type, codename_match[cfgname]))
                     if update:
                         change_option(codename_match[cfgname],
                                       'service_available', False)
@@ -278,7 +278,7 @@
                                codename_match[cfgname]):
                     print('Endpoint type %s is available, service %s should be'
                           ' set as available in the config file.' % (
-                          catalog_type, codename_match[cfgname]))
+                              catalog_type, codename_match[cfgname]))
                     if update:
                         change_option(codename_match[cfgname],
                                       'service_available', True)
diff --git a/tempest/common/accounts.py b/tempest/common/accounts.py
index 80f5f91..ad88ea2 100644
--- a/tempest/common/accounts.py
+++ b/tempest/common/accounts.py
@@ -14,6 +14,7 @@
 
 import hashlib
 import os
+
 import yaml
 
 from tempest import auth
diff --git a/tempest/common/cred_provider.py b/tempest/common/cred_provider.py
index dc4f049..9808ed1 100644
--- a/tempest/common/cred_provider.py
+++ b/tempest/common/cred_provider.py
@@ -12,6 +12,7 @@
 #    limitations under the License.
 
 import abc
+
 import six
 
 from tempest import config
diff --git a/tempest/common/debug.py b/tempest/common/debug.py
index 228be7a..16e5ffe 100644
--- a/tempest/common/debug.py
+++ b/tempest/common/debug.py
@@ -14,7 +14,6 @@
 
 from tempest.common import commands
 from tempest import config
-
 from tempest.openstack.common import log as logging
 
 CONF = config.CONF
diff --git a/tempest/common/glance_http.py b/tempest/common/glance_http.py
index 55aca5a..5f35c85 100644
--- a/tempest/common/glance_http.py
+++ b/tempest/common/glance_http.py
@@ -19,15 +19,17 @@
 import hashlib
 import httplib
 import json
-import OpenSSL
 import posixpath
 import re
-from six import moves
 import socket
 import StringIO
 import struct
 import urlparse
 
+
+import OpenSSL
+from six import moves
+
 from tempest import exceptions as exc
 from tempest.openstack.common import log as logging
 
diff --git a/tempest/common/rest_client.py b/tempest/common/rest_client.py
index 9e0f4d3..4fce2cb 100644
--- a/tempest/common/rest_client.py
+++ b/tempest/common/rest_client.py
@@ -16,12 +16,12 @@
 
 import collections
 import json
-from lxml import etree
 import re
 import string
 import time
 
 import jsonschema
+from lxml import etree
 
 from tempest.common import http
 from tempest.common.utils import misc as misc_utils
diff --git a/tempest/common/ssh.py b/tempest/common/ssh.py
index 531887c..c06ce3b 100644
--- a/tempest/common/ssh.py
+++ b/tempest/common/ssh.py
@@ -16,11 +16,12 @@
 
 import cStringIO
 import select
-import six
 import socket
 import time
 import warnings
 
+import six
+
 from tempest import exceptions
 from tempest.openstack.common import log as logging
 
diff --git a/tempest/common/utils/linux/remote_client.py b/tempest/common/utils/linux/remote_client.py
index 57a14a2..89904b2 100644
--- a/tempest/common/utils/linux/remote_client.py
+++ b/tempest/common/utils/linux/remote_client.py
@@ -11,9 +11,10 @@
 #    under the License.
 
 import re
-import six
 import time
 
+import six
+
 from tempest.common import ssh
 from tempest import config
 from tempest import exceptions
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 606208e..c8859b4 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -17,7 +17,6 @@
 import logging
 import os
 import re
-import six
 import subprocess
 import time
 
@@ -27,6 +26,7 @@
 import netaddr
 from neutronclient.common import exceptions as exc
 from novaclient import exceptions as nova_exceptions
+import six
 
 from tempest.api.network import common as net_common
 from tempest import auth
diff --git a/tempest/scenario/orchestration/test_autoscaling.py b/tempest/scenario/orchestration/test_autoscaling.py
index aa7b6f8..8894106 100644
--- a/tempest/scenario/orchestration/test_autoscaling.py
+++ b/tempest/scenario/orchestration/test_autoscaling.py
@@ -10,9 +10,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import heatclient.exc as heat_exceptions
 import time
 
+import heatclient.exc as heat_exceptions
+
 from tempest import config
 from tempest.scenario import manager
 from tempest import test
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index 8c7af3d..fc6c66c 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -15,6 +15,7 @@
 #    under the License.
 import collections
 import re
+
 import testtools
 
 from tempest.api.network import common as net_common
diff --git a/tempest/services/compute/xml/floating_ips_client.py b/tempest/services/compute/xml/floating_ips_client.py
index fa4aa07..730e870 100644
--- a/tempest/services/compute/xml/floating_ips_client.py
+++ b/tempest/services/compute/xml/floating_ips_client.py
@@ -13,9 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from lxml import etree
 import urllib
 
+from lxml import etree
+
 from tempest.common import rest_client
 from tempest.common import xml_utils
 from tempest import config
diff --git a/tempest/services/compute/xml/hosts_client.py b/tempest/services/compute/xml/hosts_client.py
index 23a7dd6..ddb92b6 100644
--- a/tempest/services/compute/xml/hosts_client.py
+++ b/tempest/services/compute/xml/hosts_client.py
@@ -15,6 +15,7 @@
 import urllib
 
 from lxml import etree
+
 from tempest.common import rest_client
 from tempest.common import xml_utils
 from tempest import config
diff --git a/tempest/services/compute/xml/security_groups_client.py b/tempest/services/compute/xml/security_groups_client.py
index 9eccb90..56ac7ba 100644
--- a/tempest/services/compute/xml/security_groups_client.py
+++ b/tempest/services/compute/xml/security_groups_client.py
@@ -13,9 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from lxml import etree
 import urllib
 
+from lxml import etree
+
 from tempest.common import rest_client
 from tempest.common import xml_utils
 from tempest import config
diff --git a/tempest/services/network/xml/network_client.py b/tempest/services/network/xml/network_client.py
index 22cc948..8eb6362 100644
--- a/tempest/services/network/xml/network_client.py
+++ b/tempest/services/network/xml/network_client.py
@@ -10,9 +10,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from lxml import etree
 import xml.etree.ElementTree as ET
 
+from lxml import etree
+
 from tempest.common import rest_client
 from tempest.common import xml_utils as common
 from tempest.services.network import network_client_base as client_base
diff --git a/tempest/services/object_storage/account_client.py b/tempest/services/object_storage/account_client.py
index a0506f2..be0f888 100644
--- a/tempest/services/object_storage/account_client.py
+++ b/tempest/services/object_storage/account_client.py
@@ -15,12 +15,12 @@
 
 import json
 import urllib
+from xml.etree import ElementTree as etree
 
 from tempest.common import http
 from tempest.common import rest_client
 from tempest import config
 from tempest import exceptions
-from xml.etree import ElementTree as etree
 
 CONF = config.CONF
 
diff --git a/tempest/services/object_storage/container_client.py b/tempest/services/object_storage/container_client.py
index 546b557..ffc1326 100644
--- a/tempest/services/object_storage/container_client.py
+++ b/tempest/services/object_storage/container_client.py
@@ -15,10 +15,10 @@
 
 import json
 import urllib
+from xml.etree import ElementTree as etree
 
 from tempest.common import rest_client
 from tempest import config
-from xml.etree import ElementTree as etree
 
 CONF = config.CONF
 
diff --git a/tempest/services/telemetry/telemetry_client_base.py b/tempest/services/telemetry/telemetry_client_base.py
index b45c239..a184a77 100644
--- a/tempest/services/telemetry/telemetry_client_base.py
+++ b/tempest/services/telemetry/telemetry_client_base.py
@@ -14,9 +14,10 @@
 #    under the License.
 
 import abc
-import six
 import urllib
 
+import six
+
 from tempest import config
 
 CONF = config.CONF
diff --git a/tempest/services/volume/json/admin/volume_quotas_client.py b/tempest/services/volume/json/admin/volume_quotas_client.py
index 961c7da..7b3e5de 100644
--- a/tempest/services/volume/json/admin/volume_quotas_client.py
+++ b/tempest/services/volume/json/admin/volume_quotas_client.py
@@ -16,10 +16,9 @@
 
 import urllib
 
-from tempest.openstack.common import jsonutils
-
 from tempest.common import rest_client
 from tempest import config
+from tempest.openstack.common import jsonutils
 
 CONF = config.CONF
 
diff --git a/tempest/services/volume/xml/admin/volume_quotas_client.py b/tempest/services/volume/xml/admin/volume_quotas_client.py
index a38410b..a8c92fc 100644
--- a/tempest/services/volume/xml/admin/volume_quotas_client.py
+++ b/tempest/services/volume/xml/admin/volume_quotas_client.py
@@ -15,6 +15,7 @@
 #    under the License.
 
 import ast
+
 from lxml import etree
 
 from tempest.common import xml_utils as xml
diff --git a/tempest/services/volume/xml/volumes_client.py b/tempest/services/volume/xml/volumes_client.py
index 2d4a9e9..89947fb 100644
--- a/tempest/services/volume/xml/volumes_client.py
+++ b/tempest/services/volume/xml/volumes_client.py
@@ -15,9 +15,9 @@
 
 import time
 import urllib
+from xml.sax import saxutils
 
 from lxml import etree
-from xml.sax import saxutils
 
 from tempest.common import rest_client
 from tempest.common import xml_utils as common
diff --git a/tempest/tests/base.py b/tempest/tests/base.py
index f4df3b9..27eb2c4 100644
--- a/tempest/tests/base.py
+++ b/tempest/tests/base.py
@@ -13,7 +13,6 @@
 #    under the License.
 
 import mock
-
 from oslotest import base
 from oslotest import moxstubout
 
diff --git a/tempest/tests/fake_http.py b/tempest/tests/fake_http.py
index ce2b2c0..7d77484 100644
--- a/tempest/tests/fake_http.py
+++ b/tempest/tests/fake_http.py
@@ -13,6 +13,7 @@
 #    under the License.
 
 import copy
+
 import httplib2
 
 
diff --git a/tempest/tests/fake_identity.py b/tempest/tests/fake_identity.py
index 1900fc9..97098e1 100644
--- a/tempest/tests/fake_identity.py
+++ b/tempest/tests/fake_identity.py
@@ -13,9 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import json
 
 import httplib2
-import json
 
 
 TOKEN = "fake_token"
diff --git a/tempest/tests/test_commands.py b/tempest/tests/test_commands.py
index 1e2925b..2379741 100644
--- a/tempest/tests/test_commands.py
+++ b/tempest/tests/test_commands.py
@@ -12,9 +12,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import mock
 import subprocess
 
+import mock
+
 from tempest.common import commands
 from tempest.tests import base
 
diff --git a/tempest/tests/test_glance_http.py b/tempest/tests/test_glance_http.py
index 88b8129..47ba982 100644
--- a/tempest/tests/test_glance_http.py
+++ b/tempest/tests/test_glance_http.py
@@ -15,9 +15,10 @@
 
 import httplib
 import json
+import socket
+
 import mock
 import six
-import socket
 
 from tempest.common import glance_http
 from tempest import exceptions
diff --git a/tempest/tests/test_rest_client.py b/tempest/tests/test_rest_client.py
index a351bd5..5f55ca2 100644
--- a/tempest/tests/test_rest_client.py
+++ b/tempest/tests/test_rest_client.py
@@ -12,9 +12,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import httplib2
 import json
 
+import httplib2
 from oslotest import mockpatch
 
 from tempest.common import rest_client
diff --git a/tempest/tests/test_tenant_isolation.py b/tempest/tests/test_tenant_isolation.py
index bbc3d15..eddbb1d 100644
--- a/tempest/tests/test_tenant_isolation.py
+++ b/tempest/tests/test_tenant_isolation.py
@@ -335,9 +335,11 @@
         remove_router_interface_mock = self.patch(
             'tempest.services.network.json.network_client.NetworkClientJSON.'
             'remove_router_interface_with_subnet_id')
+        return_values = ({'status': 200}, {'ports': []})
         port_list_mock = mock.patch.object(iso_creds.network_admin_client,
-                                           'list_ports', return_value=(
-                                           {'status': 200}, {'ports': []}))
+                                           'list_ports',
+                                           return_value=return_values)
+
         port_list_mock.start()
         iso_creds.clear_isolated_creds()
         # Verify remove router interface calls
diff --git a/tempest/thirdparty/boto/test.py b/tempest/thirdparty/boto/test.py
index d3cbc4b..9fd8b45 100644
--- a/tempest/thirdparty/boto/test.py
+++ b/tempest/thirdparty/boto/test.py
@@ -17,7 +17,6 @@
 import logging as orig_logging
 import os
 import re
-import six
 import urlparse
 
 import boto
@@ -25,6 +24,7 @@
 from boto import exception
 from boto import s3
 import keystoneclient.exceptions
+import six
 
 import tempest.clients
 from tempest.common.utils import file_utils
diff --git a/tools/check_logs.py b/tools/check_logs.py
index bc4eaca..eab9f73 100755
--- a/tools/check_logs.py
+++ b/tools/check_logs.py
@@ -22,6 +22,7 @@
 import StringIO
 import sys
 import urllib2
+
 import yaml
 
 
diff --git a/tools/colorizer.py b/tools/colorizer.py
index a3a0616..e7152f2 100755
--- a/tools/colorizer.py
+++ b/tools/colorizer.py
@@ -42,10 +42,10 @@
 """Display a subunit stream through a colorized unittest test runner."""
 
 import heapq
-import subunit
 import sys
 import unittest
 
+import subunit
 import testtools
 
 
diff --git a/tools/find_stack_traces.py b/tools/find_stack_traces.py
index c905976..4862d01 100755
--- a/tools/find_stack_traces.py
+++ b/tools/find_stack_traces.py
@@ -16,12 +16,13 @@
 #    under the License.
 
 import gzip
+import pprint
 import re
 import StringIO
 import sys
 import urllib2
 
-import pprint
+
 pp = pprint.PrettyPrinter()
 
 NOVA_TIMESTAMP = r"\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d\.\d\d\d"
diff --git a/tox.ini b/tox.ini
index 9c32121..88a8cfa 100644
--- a/tox.ini
+++ b/tox.ini
@@ -109,7 +109,8 @@
 [flake8]
 # E125 is a won't fix until https://github.com/jcrocholl/pep8/issues/126 is resolved.  For further detail see https://review.openstack.org/#/c/36788/
 # H402 skipped because some docstrings aren't sentences
-# Skipped because of new hacking 0.9: H407,H405,H904,H305,E123,H307,E122,E129,E128
-ignore = E125,H402,H404,H407,H405,H904,H305,E123,H307,E122,E129,E128
+# E123 skipped because it is ignored by default in the default pep8
+# Skipped because of new hacking 0.9: H405,H904,E129,E128
+ignore = E125,H402,E123,H404,H405,H904,E129,E128
 show-source = True
 exclude = .git,.venv,.tox,dist,doc,openstack,*egg