From 6781a8167fbe7a2fc508f60f85e34fddfc155927 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Janne=20Ker=C3=A4nen?= <jksjanne@users.noreply.github.com>
Date: Mon, 28 May 2018 15:34:18 +0300
Subject: [PATCH] Correct small bug in CompoundFilter in command line

Without this, CompoundFilter does not work in Python script in non-GUI-mode.
See:
https://forum.freecadweb.org/viewtopic.php?f=10&t=27593&p=222303
and
https://www.freecadweb.org/tracker/view.php?id=3381
---
 src/Mod/Part/CompoundTools/CompoundFilter.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Mod/Part/CompoundTools/CompoundFilter.py b/src/Mod/Part/CompoundTools/CompoundFilter.py
index 0a91ff5c40..b385c3137e 100644
--- a/src/Mod/Part/CompoundTools/CompoundFilter.py
+++ b/src/Mod/Part/CompoundTools/CompoundFilter.py
@@ -44,7 +44,8 @@ def makeCompoundFilter(name):
     '''makeCompoundFilter(name): makes a CompoundFilter object.'''
     obj = FreeCAD.ActiveDocument.addObject("Part::FeaturePython", name)
     _CompoundFilter(obj)
-    _ViewProviderCompoundFilter(obj.ViewObject)
+    if obj.ViewObject:    
+        _ViewProviderCompoundFilter(obj.ViewObject)
     return obj