diff --git a/stress/driver.py b/stress/driver.py
index 3032d58..c50e957 100644
--- a/stress/driver.py
+++ b/stress/driver.py
@@ -15,19 +15,18 @@
 Users pass in a description of the workload and a nova manager object
 to the bash_openstack function call"""
 
-
-import random
 import datetime
+import random
 import time
 
-
-# local imports
-from test_case import *
-import utils.util
 from config import StressConfig
-from state import ClusterState, KeyPairState, FloatingIpState, VolumeState
+from state import ClusterState
+from state import FloatingIpState
+from state import KeyPairState
+from state import VolumeState
+from test_case import *
 from tempest.common.utils.data_utils import rand_name
-
+import utils.util
 
 # setup logging to file
 logging.basicConfig(
diff --git a/stress/pending_action.py b/stress/pending_action.py
index a2d5a6b..635d2cc 100644
--- a/stress/pending_action.py
+++ b/stress/pending_action.py
@@ -14,9 +14,9 @@
 """Describe follow-up actions using `PendingAction` class to verify
 that nova API calls such as create/delete are completed"""
 
-
 import logging
 import time
+
 from tempest.exceptions import TimeoutException
 
 
diff --git a/stress/test_floating_ips.py b/stress/test_floating_ips.py
index 302385a..fcc5904 100755
--- a/stress/test_floating_ips.py
+++ b/stress/test_floating_ips.py
@@ -12,16 +12,13 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
-
-# system imports
-import random
-import time
-import telnetlib
 import logging
+import random
+import telnetlib
+import time
 
-# local imports
-import test_case
 import pending_action
+import test_case
 
 
 class TestChangeFloatingIp(test_case.StressTestCase):
@@ -85,7 +82,7 @@
                                   (self.floating_ip.address, self.elapsed()))
                 self.floating_ip.change_pending = False
                 return True
-        except:
+        except Exception:
             if not self.add:
                 self._logger.info('%s removed [%.1f secs elapsed]' %
                                   (self.floating_ip.address, self.elapsed()))
diff --git a/stress/test_server_actions.py b/stress/test_server_actions.py
index 58350ac..ca66dec 100644
--- a/stress/test_server_actions.py
+++ b/stress/test_server_actions.py
@@ -17,15 +17,12 @@
 sub-class will have a corresponding PendingServerAction. These pending
 actions veriy that the API call was successful or not."""
 
-
-# system imports
 import random
 import time
 
-# local imports
-import test_case
 import pending_action
 from tempest.exceptions import Duplicate
+import test_case
 from utils.util import *
 
 
diff --git a/stress/test_servers.py b/stress/test_servers.py
index 113e5cb..9957cdb 100644
--- a/stress/test_servers.py
+++ b/stress/test_servers.py
@@ -17,15 +17,11 @@
 Each sub-class will have a corresponding PendingServerAction. These pending
 actions veriy that the API call was successful or not."""
 
-
-# system imports
 import random
 import time
 
-
-# local imports
-import test_case
 import pending_action
+import test_case
 
 
 class TestCreateVM(test_case.StressTestCase):
diff --git a/stress/tests/floating_ips.py b/stress/tests/floating_ips.py
index 03bd509..8db06d4 100755
--- a/stress/tests/floating_ips.py
+++ b/stress/tests/floating_ips.py
@@ -13,12 +13,12 @@
 #    limitations under the License.
 """Stress test that associates/disasssociates floating ips"""
 
-# local imports
-from stress.test_floating_ips import TestChangeFloatingIp
 from stress.basher import BasherAction
 from stress.driver import *
+from stress.test_floating_ips import TestChangeFloatingIp
 from tempest import openstack
 
+
 choice_spec = [
     BasherAction(TestChangeFloatingIp(), 100)
 ]
diff --git a/stress/utils/util.py b/stress/utils/util.py
index 5870ca1..f90796d 100644
--- a/stress/utils/util.py
+++ b/stress/utils/util.py
@@ -14,8 +14,8 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
-import subprocess
 import shlex
+import subprocess
 
 SSH_OPTIONS = (" -q" +
                " -o UserKnownHostsFile=/dev/null" +