From 1518be0b95304ecb9c5692c973fbaa4d5d46c0b0 Mon Sep 17 00:00:00 2001
From: Lonami Exo <totufals@hotmail.com>
Date: Thu, 28 Sep 2017 09:30:47 +0200
Subject: [PATCH] Use .appendleft(x) for deque instead .insert(0, x) (fix #268)

---
 telethon/update_state.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/telethon/update_state.py b/telethon/update_state.py
index e92dac1f..c38d6ebf 100644
--- a/telethon/update_state.py
+++ b/telethon/update_state.py
@@ -57,7 +57,7 @@ class UpdateState:
         with self._updates_lock:
             # Insert at the beginning so the very next poll causes an error
             # TODO Should this reset the pts and such?
-            self._updates.insert(0, error)
+            self._updates.appendleft(error)
             self._updates_available.set()
 
     def check_error(self):