From 3bc3331983e2ab6e7bb4467770021586a7f18012 Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Mon, 22 Jul 2013 20:06:52 -0700
Subject: [PATCH] Increase reference count when returning Py_None

---
 src/ifcwrap/IfcPython.i | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ifcwrap/IfcPython.i b/src/ifcwrap/IfcPython.i
index f0e58dbf4d..fd7d8aabc9 100644
--- a/src/ifcwrap/IfcPython.i
+++ b/src/ifcwrap/IfcPython.i
@@ -54,6 +54,7 @@
 	const Argument& arg = *($1.second);
 	const ArgumentType type = $1.first;
 	if (arg.isNull()) {
+		Py_INCREF(Py_None);
 		$result = Py_None;
 	} else {
 	switch(type) {