From 50b1f1387e71ff27a29373833d656c2e7273a923 Mon Sep 17 00:00:00 2001
From: Alarig Le Lay <alarig.le-lay@gandi.net>
Date: Fri, 12 Apr 2019 19:34:07 +0200
Subject: [PATCH] Applying patch from @fduraffourg that fixes #9

---
 lg.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lg.py b/lg.py
index 6a9f4e7..40caa95 100644
--- a/lg.py
+++ b/lg.py
@@ -575,7 +575,11 @@ def build_as_tree_from_raw_bird_ouput(host, proto, text):
                 net_dest = expr2.group(1).strip()
 
         if line.startswith("BGP.as_path:"):
-            path.extend(line.replace("BGP.as_path:", "").strip().split(" "))
+            ASes = line.replace("BGP.as_path:", "").strip().split(" ")
+            if path:
+                path.extend(ASes)
+            else:
+                path = ASes
     
     if path:
         path.append(net_dest)