diff --git a/functional/test_remote_stack.py b/functional/test_remote_stack.py
index d9eec79..1b6f961 100644
--- a/functional/test_remote_stack.py
+++ b/functional/test_remote_stack.py
@@ -11,10 +11,11 @@
 #    under the License.
 
 import logging
+
+from heatclient import exc
 import six
 
 from heat_integrationtests.common import test
-from heatclient import exc
 
 LOG = logging.getLogger(__name__)
 
diff --git a/functional/test_resource_group.py b/functional/test_resource_group.py
index 8ccddd8..6c68a19 100644
--- a/functional/test_resource_group.py
+++ b/functional/test_resource_group.py
@@ -10,9 +10,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import six
-
 from heatclient import exc
+import six
 
 from heat_integrationtests.common import test
 
diff --git a/functional/test_template_resource.py b/functional/test_template_resource.py
index 828ff74..6b3fabb 100644
--- a/functional/test_template_resource.py
+++ b/functional/test_template_resource.py
@@ -12,6 +12,7 @@
 
 import json
 import logging
+
 import yaml
 
 from heat_integrationtests.common import test