From c0d1e0fb343bfe93ca0de7a74947b93d116ecf03 Mon Sep 17 00:00:00 2001
From: David Polverari <david.polverari@gmail.com>
Date: Fri, 8 May 2026 22:06:17 -0300
Subject: [PATCH] Fix 'NoneType' object not subscriptable

---
 pathfinder.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pathfinder.py b/pathfinder.py
index 3081325..d30ef6b 100644
--- a/pathfinder.py
+++ b/pathfinder.py
@@ -63,7 +63,9 @@ def processNmapFile(inputNmapXmlFile, outputDotPngFile, skipDestHost, destIpToNe
                 hops = run.trace.hop
 
                 # check if last hop equals to target host (else skip due to incomplete traceroute)
-                if run.address["addr"] != hops[len(hops)-1]["ipaddr"]:
+                last_hop = hops[-1] if hops else None
+
+                if run.address and last_hop and run.address["addr"] != last_hop["ipaddr"]:
                     print("    Incomplete traceroute for host")
                     continue