diff --git a/climate/manager/service.py b/climate/manager/service.py
index 734dfd53..0293e39a 100644
--- a/climate/manager/service.py
+++ b/climate/manager/service.py
@@ -14,9 +14,9 @@
 # limitations under the License.
 
 import datetime
-import eventlet
 import six
 
+import eventlet
 from oslo.config import cfg
 from stevedore import enabled
 
diff --git a/climate/notification/notifier.py b/climate/notification/notifier.py
index 8690b24a..e03241a4 100644
--- a/climate/notification/notifier.py
+++ b/climate/notification/notifier.py
@@ -13,10 +13,11 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from climate.openstack.common import log
 from oslo.config import cfg
 from oslo import messaging
 
+from climate.openstack.common import log
+
 notification_opts = [
     cfg.StrOpt('publisher_id',
                default="climate.lease",
diff --git a/climate/plugins/instances/vm_plugin.py b/climate/plugins/instances/vm_plugin.py
index 28a65505..46caef6d 100644
--- a/climate/plugins/instances/vm_plugin.py
+++ b/climate/plugins/instances/vm_plugin.py
@@ -14,6 +14,7 @@
 # limitations under the License.
 
 import eventlet
+from novaclient import exceptions as nova_exceptions
 from oslo.config import cfg
 
 from climate import exceptions as climate_exceptions
@@ -21,7 +22,6 @@ from climate.openstack.common import log as logging
 from climate.plugins import base
 from climate.plugins import instances as plugin
 from climate.utils.openstack import nova
-from novaclient import exceptions as nova_exceptions
 
 LOG = logging.getLogger(__name__)
 
diff --git a/climate/plugins/oshosts/host_plugin.py b/climate/plugins/oshosts/host_plugin.py
index 6d0340cc..0803d5f4 100644
--- a/climate/plugins/oshosts/host_plugin.py
+++ b/climate/plugins/oshosts/host_plugin.py
@@ -22,7 +22,6 @@ import uuid
 from oslo.config import cfg
 
 from climate import context
-
 from climate.db import api as db_api
 from climate.db import exceptions as db_ex
 from climate.db import utils as db_utils
diff --git a/climate/plugins/oshosts/nova_inventory.py b/climate/plugins/oshosts/nova_inventory.py
index 30ec5de7..4304506d 100644
--- a/climate/plugins/oshosts/nova_inventory.py
+++ b/climate/plugins/oshosts/nova_inventory.py
@@ -13,9 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from oslo.config import cfg
-
 from novaclient import exceptions as nova_exceptions
+from oslo.config import cfg
 
 from climate import context
 from climate.manager import exceptions as manager_exceptions
diff --git a/climate/policy.py b/climate/policy.py
index 794a7d3c..64f4c9c6 100644
--- a/climate/policy.py
+++ b/climate/policy.py
@@ -16,6 +16,7 @@
 """Policy Engine For Climate."""
 
 import functools
+
 from oslo.config import cfg
 
 from climate import context