--- a/thirdparty/google_appengine/google/appengine/ext/admin/__init__.py	Tue May 12 13:02:10 2009 +0200
+++ b/thirdparty/google_appengine/google/appengine/ext/admin/__init__.py	Tue May 12 15:39:52 2009 +0200
@@ -1101,6 +1101,9 @@
   def parse(self, value):
     return None
 
+  def python_type(self):
+    return None
+
   def format(self, value):
     return 'None'