From 37e8e54f411946a1bc5800c97dfbc78e58879083 Mon Sep 17 00:00:00 2001
From: Andreas Aigner <andreas.aigner@dcs-computing.com>
Date: Sat, 11 Jun 2016 09:46:33 +0200
Subject: [PATCH] Fixed FutureWarning for comparison against none

---
 src/vtk.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vtk.py b/src/vtk.py
index 1ae2fac..63e4f20 100644
--- a/src/vtk.py
+++ b/src/vtk.py
@@ -313,7 +313,7 @@ def particleGran(file,atoms,names,n_values):
   f = open(file,"w")
   
   # if no atoms are present
-  if atoms == None:
+  if atoms is None:
     atoms = []
   
   # find indices of scalars and vectors