From edd63bec4a202fa941b4b4bc5b95e189c9862b0e Mon Sep 17 00:00:00 2001
From: Markus Lampert <markus@bibi.ca>
Date: Tue, 20 Jun 2017 11:56:47 -0700
Subject: [PATCH] Fixed contour setting the visibility although there is no
 ViewObject associated with it.

---
 src/Mod/Path/PathScripts/PathContour.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Mod/Path/PathScripts/PathContour.py b/src/Mod/Path/PathScripts/PathContour.py
index 636cde320a..655886a1d8 100644
--- a/src/Mod/Path/PathScripts/PathContour.py
+++ b/src/Mod/Path/PathScripts/PathContour.py
@@ -199,7 +199,8 @@ class ObjectContour:
         if not obj.Active:
             path = Path.Path("(inactive operation)")
             obj.Path = path
-            obj.ViewObject.Visibility = False
+            if obj.ViewObject:
+                obj.ViewObject.Visibility = False
             return
 
         commandlist = []
@@ -267,7 +268,7 @@ class ObjectContour:
 
         path = Path.Path(commandlist)
         obj.Path = path
-        if  obj.ViewObject:
+        if obj.ViewObject:
             obj.ViewObject.Visibility = True