From 3586b9f0c949b3c5a2cdbc4a77047e16e6ca6d22 Mon Sep 17 00:00:00 2001
From: LeoVerto <LeoVerto@users.noreply.github.com>
Date: Mon, 10 Sep 2018 18:45:36 +0200
Subject: [PATCH] Fix KeyError on unused networks

---
 docker-net-graph.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/docker-net-graph.py b/docker-net-graph.py
index 11ecb0c..bd0cab8 100755
--- a/docker-net-graph.py
+++ b/docker-net-graph.py
@@ -61,14 +61,15 @@ def generate_graph(verbose: bool, file: str):
 
         try:
             gateway = net['IPAM']['Config'][0]['Gateway']
-        except IndexError:
-            gateway = None
+        except KeyError:
+            # This network doesn't seem to be used, skip it
+            continue
 
         internal = ""
         try:
             if net['Internal']:
                 internal = "| Internal "
-        except IndexError:
+        except KeyError:
             pass
 
         isolated = ""