diff --git a/ironic/api/controllers/v1/node.py b/ironic/api/controllers/v1/node.py
index 0be3bb6240..303bbd3ca0 100644
--- a/ironic/api/controllers/v1/node.py
+++ b/ironic/api/controllers/v1/node.py
@@ -388,7 +388,7 @@ class NodeStatesController(rest.RestController):
             # Change error code as 404 seems appropriate because RAID is a
             # standard interface and all drivers might not have it.
             e.code = http_client.NOT_FOUND
-            raise e
+            raise
 
     @expose.expose(None, types.uuid_or_name, wtypes.text,
                    status_code=http_client.ACCEPTED)
@@ -599,7 +599,7 @@ class Node(base.APIBase):
                 # Change error code because 404 (NotFound) is inappropriate
                 # response for a POST request to create a Port
                 e.code = http_client.BAD_REQUEST
-                raise e
+                raise
         elif value == wtypes.Unset:
             self._chassis_uuid = wtypes.Unset
 
@@ -907,7 +907,7 @@ class NodeMaintenanceController(rest.RestController):
             topic = pecan.request.rpcapi.get_topic_for(rpc_node)
         except exception.NoValidHost as e:
             e.code = http_client.BAD_REQUEST
-            raise e
+            raise
         pecan.request.rpcapi.update_node(pecan.request.context,
                                          rpc_node, topic=topic)
 
@@ -1240,7 +1240,7 @@ class NodesController(rest.RestController):
             #             list of available drivers and shouldn't request
             #             one that doesn't exist.
             e.code = http_client.BAD_REQUEST
-            raise e
+            raise
 
         if node.name != wtypes.Unset and node.name is not None:
             error_msg = _("Cannot create node with invalid name '%(name)s'")
@@ -1309,7 +1309,7 @@ class NodesController(rest.RestController):
             #             list of available drivers and shouldn't request
             #             one that doesn't exist.
             e.code = http_client.BAD_REQUEST
-            raise e
+            raise
         self._check_driver_changed_and_console_enabled(rpc_node, node_ident)
         new_node = pecan.request.rpcapi.update_node(
             pecan.request.context, rpc_node, topic)
@@ -1332,7 +1332,7 @@ class NodesController(rest.RestController):
             topic = pecan.request.rpcapi.get_topic_for(rpc_node)
         except exception.NoValidHost as e:
             e.code = http_client.BAD_REQUEST
-            raise e
+            raise
 
         pecan.request.rpcapi.destroy_node(pecan.request.context,
                                           rpc_node.uuid, topic)
diff --git a/ironic/api/controllers/v1/port.py b/ironic/api/controllers/v1/port.py
index ab0166b778..b5f332c2c9 100644
--- a/ironic/api/controllers/v1/port.py
+++ b/ironic/api/controllers/v1/port.py
@@ -70,7 +70,7 @@ class Port(base.APIBase):
                 # Change error code because 404 (NotFound) is inappropriate
                 # response for a POST request to create a Port
                 e.code = http_client.BAD_REQUEST  # BadRequest
-                raise e
+                raise
         elif value == wtypes.Unset:
             self._node_uuid = wtypes.Unset
 
diff --git a/ironic/db/sqlalchemy/api.py b/ironic/db/sqlalchemy/api.py
index 8f8d9aa6c1..79b7aa8f2f 100644
--- a/ironic/db/sqlalchemy/api.py
+++ b/ironic/db/sqlalchemy/api.py
@@ -405,7 +405,7 @@ class Connection(api.Connection):
                     instance_uuid=values['instance_uuid'],
                     node=node_id)
             else:
-                raise e
+                raise
 
     def _do_update_node(self, node_id, values):
         with _session_for_write():
@@ -600,7 +600,7 @@ class Connection(api.Connection):
                     raise exception.PortgroupMACAlreadyExists(
                         mac=values['address'])
                 else:
-                    raise exc
+                    raise
             return ref
 
     def destroy_portgroup(self, portgroup_id):