From 10be9e66748bb8aa3628313f5b9606fad12dd0e9 Mon Sep 17 00:00:00 2001
From: fieldOfView <aldo@fieldofview.com>
Date: Wed, 3 Aug 2016 17:04:50 +0200
Subject: [PATCH] Fix an warning when a printer has a timeout before it has
 been fully discovered

CURA-1851
---
 NetworkPrinterOutputDevicePlugin.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/NetworkPrinterOutputDevicePlugin.py b/NetworkPrinterOutputDevicePlugin.py
index a36f7ea9eb..8db0c4a783 100644
--- a/NetworkPrinterOutputDevicePlugin.py
+++ b/NetworkPrinterOutputDevicePlugin.py
@@ -68,6 +68,8 @@ class NetworkPrinterOutputDevicePlugin(OutputDevicePlugin):
 
     ##  Handler for when the connection state of one of the detected printers changes
     def _onPrinterConnectionStateChanged(self, key):
+        if key not in self._printers:
+            return
         if self._printers[key].isConnected():
             self.getOutputDeviceManager().addOutputDevice(self._printers[key])
         else: