From 563ae20a6ec2b2bfa9ae75930d50a2eeaff4c121 Mon Sep 17 00:00:00 2001
From: Dane Springmeyer <dane@dbsgeo.com>
Date: Mon, 11 Jul 2011 19:27:38 +0000
Subject: [PATCH] return python 'None' for null values - otherwise we hit
 runtime error of 'SystemError: NULL result without error in PyObject_Call'

---
 bindings/python/mapnik_value_converter.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bindings/python/mapnik_value_converter.hpp b/bindings/python/mapnik_value_converter.hpp
index fb6d6bba8..01b88cb0a 100644
--- a/bindings/python/mapnik_value_converter.hpp
+++ b/bindings/python/mapnik_value_converter.hpp
@@ -54,7 +54,7 @@ namespace boost { namespace python {
             
         PyObject * operator() (mapnik::value_null const& /*s*/) const
         {
-            return NULL;
+            return Py_None;
         }
     };