diff --git a/tacker/vm/drivers/heat/heat.py b/tacker/vm/drivers/heat/heat.py
index 0394f7fd6..55a2d9907 100644
--- a/tacker/vm/drivers/heat/heat.py
+++ b/tacker/vm/drivers/heat/heat.py
@@ -81,7 +81,7 @@ class DeviceHeat(abstract_driver.DeviceAbstractDriver):
 
         device_template_dict.update(
             dict((key, vnfd_dict[vnfd_key]) for (key, vnfd_key) in KEY_LIST
-                 if ((not key in device_template_dict or
+                 if ((key not in device_template_dict or
                       device_template_dict[key] == '') and
                      vnfd_key in vnfd_dict and
                      vnfd_dict[vnfd_key] != '')))
diff --git a/tacker/vm/monitor.py b/tacker/vm/monitor.py
index 816278c3b..2eeb12534 100644
--- a/tacker/vm/monitor.py
+++ b/tacker/vm/monitor.py
@@ -205,7 +205,7 @@ class ActionPolicy(object):
     def get_supported_actions(cls):
         return cls._POLICIES.keys()
 
-    @abc.abstractmethod
+    @abc.abstractmethod  # noqa
     def execute_action(cls, plugin, device_dict):
         pass
 
diff --git a/tox.ini b/tox.ini
index f404731d9..1641ec244 100644
--- a/tox.ini
+++ b/tox.ini
@@ -59,11 +59,9 @@ commands = {posargs}
 # E126 continuation line over-indented for hanging indent
 # E128 continuation line under-indented for visual indent
 # E129 visually indented line with same indent as next logical line
-# E713 test for membership should be ‘not in’
-# F811 redefinition of unused variable
 # H302 import only modules
 # H904 Wrap long lines in parentheses instead of a backslash
-ignore = E125,E126,E128,E129,E713,F811,H302,H904
+ignore = E125,E126,E128,E129,H302,H904
 show-source = true
 builtins = _
 exclude = .venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools,.ropeproject