Correct reraising of exception

when an exception was caught and rethrown, it should call 'raise'
without any arguments.

Change-Id: Ie7905e47e91547601ae78abf3a6e135a0f8ac2d6

barbican/tasks/keystone_consumer.py

@@ -49,13 +49,13 @@ class KeystoneEventConsumer(resources.BaseTask):
             self.db_start()
             super(KeystoneEventConsumer, self).process(*args, **kwargs)
             self.db_commit()
-        except Exception as e:
+        except Exception:
             """Exceptions that reach here needs to revert the entire
             transaction.
             No need to log error message as its already done earlier.
             """
             self.db_rollback()
-            raise e
+            raise
         finally:
             self.db_clear()
 

barbican/tasks/resources.py

@@ -91,11 +91,11 @@ class BaseTask(object):
         # Retrieve the target entity (such as an models.Order instance).
         try:
             entity = self.retrieve_entity(*args, **kwargs)
-        except Exception as e:
+        except Exception:
             # Serious error!
             LOG.exception(u._LE("Could not retrieve information needed to "
                                 "process task '%s'."), name)
-            raise e
+            raise
 
         # Process the target entity.
         try:
@@ -119,10 +119,10 @@ class BaseTask(object):
         # Handle successful conclusion of processing.
         try:
             self.handle_success(entity, result, *args, **kwargs)
-        except Exception as e:
+        except Exception:
             LOG.exception(u._LE("Could not process after successfully "
                                 "executing task '%s'."), name)
-            raise e
+            raise
 
         return result