Fix flake8 warnings for new flake8

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py

index 338a9d40d5..2c49a5e499 100644
--- a/synapse/storage/stream.py
+++ b/synapse/storage/stream.py
@@ -168,7 +168,7 @@ class StreamStore(SQLBaseStore):
 
         results = {}
         room_ids = list(room_ids)
-        for rm_ids in (room_ids[i:i+20] for i in xrange(0, len(room_ids), 20)):
+        for rm_ids in (room_ids[i:i + 20] for i in xrange(0, len(room_ids), 20)):
             res = yield defer.gatherResults([
                 self.get_room_events_stream_for_room(
                     room_id, from_key, to_key, limit