3 files changed, 2 insertions, 5 deletions
diff --git a/synapse/storage/data_stores/main/events.py b/synapse/storage/data_stores/main/events.py
index cfd24d2f06..b7bf3fbd9d 100644
--- a/synapse/storage/data_stores/main/events.py
+++ b/synapse/storage/data_stores/main/events.py
@@ -14,7 +14,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
 import itertools
 import logging
 from collections import OrderedDict, namedtuple
@@ -48,8 +47,8 @@ from synapse.util.frozenutils import frozendict_json_encoder
 from synapse.util.iterutils import batch_iter
 
 if TYPE_CHECKING:
-    from synapse.storage.data_stores.main import DataStore
     from synapse.server import HomeServer
+    from synapse.storage.data_stores.main import DataStore
 
 
 logger = logging.getLogger(__name__)
diff --git a/synapse/storage/data_stores/main/ui_auth.py b/synapse/storage/data_stores/main/ui_auth.py
index ec2f38c373..4c044b1a15 100644
--- a/synapse/storage/data_stores/main/ui_auth.py
+++ b/synapse/storage/data_stores/main/ui_auth.py
@@ -17,10 +17,10 @@ from typing import Any, Dict, Optional, Union
 
 import attr
 
-import synapse.util.stringutils as stringutils
 from synapse.api.errors import StoreError
 from synapse.storage._base import SQLBaseStore
 from synapse.types import JsonDict
+from synapse.util import stringutils as stringutils
 
 
 @attr.s
diff --git a/synapse/storage/types.py b/synapse/storage/types.py
index daff81c5ee..2d2b560e74 100644
--- a/synapse/storage/types.py
+++ b/synapse/storage/types.py
@@ -12,12 +12,10 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
 from typing import Any, Iterable, Iterator, List, Tuple
 
 from typing_extensions import Protocol
 
-
 """
 Some very basic protocol definitions for the DB-API2 classes specified in PEP-249
 """