diff --git a/neutron_dynamic_routing/__init__.py b/neutron_dynamic_routing/__init__.py
index fa7a241e..208ffbf1 100644
--- a/neutron_dynamic_routing/__init__.py
+++ b/neutron_dynamic_routing/__init__.py
@@ -14,6 +14,7 @@
 #    under the License.
 
 import gettext
+
 import six
 
 
diff --git a/neutron_dynamic_routing/db/bgp_db.py b/neutron_dynamic_routing/db/bgp_db.py
index c097d110..a4498d93 100644
--- a/neutron_dynamic_routing/db/bgp_db.py
+++ b/neutron_dynamic_routing/db/bgp_db.py
@@ -13,21 +13,9 @@
 # under the License.
 
 import itertools
+
 import netaddr
 
-from oslo_db import exception as oslo_db_exc
-from oslo_utils import uuidutils
-import sqlalchemy as sa
-from sqlalchemy import and_
-from sqlalchemy import orm
-from sqlalchemy.orm import aliased
-from sqlalchemy.orm import exc as sa_exc
-
-from neutron_lib.api import validators
-from neutron_lib import constants as lib_consts
-from neutron_lib.db import model_base
-from neutron_lib import exceptions as n_exc
-
 from neutron.db import api as db_api
 from neutron.db import common_db_mixin as common_db
 from neutron.db import l3_dvr_db
@@ -38,6 +26,18 @@ from neutron.db import models_v2
 from neutron.extensions import l3 as l3_ext
 from neutron.plugins.ml2 import models as ml2_models
 
+from neutron_lib.api import validators
+from neutron_lib import constants as lib_consts
+from neutron_lib.db import model_base
+from neutron_lib import exceptions as n_exc
+from oslo_db import exception as oslo_db_exc
+from oslo_utils import uuidutils
+import sqlalchemy as sa
+from sqlalchemy import and_
+from sqlalchemy import orm
+from sqlalchemy.orm import aliased
+from sqlalchemy.orm import exc as sa_exc
+
 from neutron_dynamic_routing._i18n import _
 from neutron_dynamic_routing.extensions import bgp as bgp_ext
 
diff --git a/neutron_dynamic_routing/extensions/bgp_dragentscheduler.py b/neutron_dynamic_routing/extensions/bgp_dragentscheduler.py
index 52e42b48..bae4c65d 100644
--- a/neutron_dynamic_routing/extensions/bgp_dragentscheduler.py
+++ b/neutron_dynamic_routing/extensions/bgp_dragentscheduler.py
@@ -14,19 +14,18 @@
 # under the License.
 
 import abc
-import six
-import webob
-
-from neutron_lib.api import extensions as api_extensions
-from neutron_lib import exceptions as n_exc
-from neutron_lib.plugins import directory
-from oslo_log import log as logging
 
 from neutron.api import extensions
 from neutron.api.v2 import base
 from neutron.api.v2 import resource
 from neutron.extensions import agent
 from neutron import wsgi
+from neutron_lib.api import extensions as api_extensions
+from neutron_lib import exceptions as n_exc
+from neutron_lib.plugins import directory
+from oslo_log import log as logging
+import six
+import webob
 
 from neutron_dynamic_routing._i18n import _, _LE
 from neutron_dynamic_routing.extensions import bgp as bgp_ext
diff --git a/neutron_dynamic_routing/services/bgp/agent/driver/base.py b/neutron_dynamic_routing/services/bgp/agent/driver/base.py
index 128651b7..d8e0c552 100644
--- a/neutron_dynamic_routing/services/bgp/agent/driver/base.py
+++ b/neutron_dynamic_routing/services/bgp/agent/driver/base.py
@@ -14,6 +14,7 @@
 # limitations under the License.
 
 import abc
+
 import six
 
 
diff --git a/neutron_dynamic_routing/tests/unit/db/test_bgp_db.py b/neutron_dynamic_routing/tests/unit/db/test_bgp_db.py
index 3696b7ad..c337a754 100644
--- a/neutron_dynamic_routing/tests/unit/db/test_bgp_db.py
+++ b/neutron_dynamic_routing/tests/unit/db/test_bgp_db.py
@@ -13,22 +13,21 @@
 # under the License.
 
 import contextlib
+
 import mock
 import netaddr
-from oslo_config import cfg
-
+from neutron.db import l3_dvr_ha_scheduler_db
+from neutron.extensions import external_net
+from neutron.tests.unit.extensions import test_l3
+from neutron.tests.unit.plugins.ml2 import test_plugin
 from neutron_lib.api.definitions import portbindings
 from neutron_lib import constants as n_const
 from neutron_lib import exceptions as n_exc
 from neutron_lib.plugins import constants as plugin_constants
 from neutron_lib.plugins import directory
+from oslo_config import cfg
 from oslo_utils import uuidutils
 
-from neutron.db import l3_dvr_ha_scheduler_db
-from neutron.extensions import external_net
-from neutron.tests.unit.extensions import test_l3
-from neutron.tests.unit.plugins.ml2 import test_plugin
-
 from neutron_dynamic_routing.extensions import bgp
 from neutron_dynamic_routing.services.bgp import bgp_plugin
 
diff --git a/test-requirements.txt b/test-requirements.txt
index 4373a612..59641c97 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,6 +5,7 @@ hacking<0.12,>=0.11.0 # Apache-2.0
 
 coverage!=4.4,>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
+flake8-import-order==0.12 # LGPLv3
 mock>=2.0 # BSD
 python-subunit>=0.0.18 # Apache-2.0/BSD
 requests-mock>=1.1 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index 80e0067a..8a9f6c13 100644
--- a/tox.ini
+++ b/tox.ini
@@ -82,6 +82,7 @@ commands = python setup.py build_sphinx
 ignore = E125,E126,E128,E129,E265,H404,H405,N530,N537
 show-source = true
 exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build,tools,.ropeproject,rally-scenarios
+import-order-style = pep8
 
 [testenv:pylint]
 deps =