From 3537a66ef1580a98ea3c4b01dc7f524b4cc5bbd2 Mon Sep 17 00:00:00 2001
From: "Serge S. Koval" <serge.koval@gmail.com>
Date: Sat, 10 Dec 2011 11:58:16 +0200
Subject: [PATCH] Minor cleanup.

---
 tornado/websocket.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tornado/websocket.py b/tornado/websocket.py
index a836c4bcf..ce2af8600 100644
--- a/tornado/websocket.py
+++ b/tornado/websocket.py
@@ -390,7 +390,7 @@ class WebSocketProtocol8(WebSocketProtocol):
         raised
         """
         fields = ("Host", "Sec-Websocket-Key", "Sec-Websocket-Version")
-        if (not all(map(lambda f: self.request.headers.get(f), fields))):
+        if not all(map(lambda f: self.request.headers.get(f), fields)):
             raise ValueError("Missing/Invalid WebSocket headers")
 
     def _challenge_response(self):
-- 
2.47.2