From bd1a442a17dcd90c693f8d16970cc36f7fbba9d6 Mon Sep 17 00:00:00 2001
From: Mathieu Jadin <mathjadin@gmail.com>
Date: Fri, 26 Jul 2019 15:40:09 +0200
Subject: [PATCH] Return the new link key in Topo.addLink()

---
 mininet/topo.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mininet/topo.py b/mininet/topo.py
index bc60c05..8b7e463 100644
--- a/mininet/topo.py
+++ b/mininet/topo.py
@@ -156,8 +156,7 @@ class Topo( object ):
         port1, port2 = self.addPort( node1, node2, port1, port2 )
         opts = dict( opts )
         opts.update( node1=node1, node2=node2, port1=port1, port2=port2 )
-        self.g.add_edge(node1, node2, key, opts )
-        return key
+        return self.g.add_edge(node1, node2, key, opts )
 
     def nodes( self, sort=True ):
         "Return nodes in graph"