From 251aafcccad74aef96def0adbf5d9387e1d19199 Mon Sep 17 00:00:00 2001
From: Mark Haines <mark.haines@matrix.org>
Date: Tue, 22 Dec 2015 14:03:24 +0000
Subject: [PATCH] Use a list comprehension

---
 synapse/handlers/sync.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 4753166a0..38c185cd5 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -195,9 +195,10 @@ class SyncHandler(BaseHandler):
         now_token = yield self.event_sources.get_current_token()
 
         if sync_config.is_guest:
-            room_list = []
-            for room_id in sync_config.filter.list_rooms():
-                room_list.append(GuestRoom(room_id, Membership.JOIN))
+            room_list = [
+                GuestRoom(room_id, Membership.JOIN)
+                for room_id in sync_config.filter.list_rooms()
+            ]
 
             account_data = {}
             account_data_by_room = {}