From a20b9e1fcd675e593c8b4cb383f28f404ff62add Mon Sep 17 00:00:00 2001
From: IWASE Yusuke <iwase.yusuke0@gmail.com>
Date: Tue, 17 May 2016 10:52:15 +0900
Subject: [PATCH] BGP: Make RouteFamily class hashable

In Python 3, the key objects of dict must be hashable,
but RouteFamily class does not have '__hash__' method.
This patch adds this method.

Signed-off-by: IWASE Yusuke <iwase.yusuke0@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/lib/packet/bgp.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ryu/lib/packet/bgp.py b/ryu/lib/packet/bgp.py
index 2b8e42c8..2fb51e88 100644
--- a/ryu/lib/packet/bgp.py
+++ b/ryu/lib/packet/bgp.py
@@ -579,6 +579,9 @@ class RouteFamily(StringifyMixin):
     def __eq__(self, other):
         return (self.afi, self.safi) == (other.afi, other.safi)
 
+    def __hash__(self):
+        return hash((self.afi, self.safi))
+
 # Route Family Singleton
 RF_IPv4_UC = RouteFamily(addr_family.IP, subaddr_family.UNICAST)
 RF_IPv6_UC = RouteFamily(addr_family.IP6, subaddr_family.UNICAST)