From 733074151bb02b66b23a97a8c32d9125e47ab202 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Tue, 5 Feb 2013 20:10:41 +0900
Subject: controller/handler: allow set_ev_cls not to specify dispatchers

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/controller/handler.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ryu/controller/handler.py b/ryu/controller/handler.py
index 9a09e99b..615fd120 100644
--- a/ryu/controller/handler.py
+++ b/ryu/controller/handler.py
@@ -29,7 +29,7 @@ DEAD_DISPATCHER = "dead"
 
 
 # should be named something like 'observe_event'
-def set_ev_cls(ev_cls, dispatchers):
+def set_ev_cls(ev_cls, dispatchers=None):
     def _set_ev_cls_dec(handler):
         handler.ev_cls = ev_cls
         handler.dispatchers = _listify(dispatchers)
-- 
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