fix pep8

Author: lucemia

gcloud/datastore/connection.py

@@ -470,7 +470,6 @@ def save_entity(self, dataset_id, key_pb, properties,
             helpers._set_protobuf_property(insert.property, name, value,
                                            name not in exclude_from_indexes)
 
-
         # If this is in a transaction, we should just return True. The
         # transaction will handle assigning any keys as necessary.
         if self.transaction():

gcloud/datastore/test_connection.py

@@ -906,7 +906,6 @@ def test_allocate_ids_non_empty(self):
         for key_before, key_after in zip(before_key_pbs, request.key):
             _compare_key_pb_after_request(self, key_before, key_after)
 
-
     def test_save_entity_w_empty_list_value(self):
         from gcloud.datastore import datastore_v1_pb2 as datastore_pb
 
@@ -946,7 +945,6 @@ def test_save_entity_w_empty_list_value(self):
         self.assertEqual(len(mutation.delete), 0)
         self.assertEqual(request.mode, rq_class.NON_TRANSACTIONAL)
 
-
     def test_save_entity_wo_transaction_w_upsert(self):
         from gcloud.datastore import datastore_v1_pb2 as datastore_pb