diff -r b758351d191f -r cc9b7e14412b web/lib/django/core/serializers/json.py
--- a/web/lib/django/core/serializers/json.py	Wed May 19 17:43:59 2010 +0200
+++ b/web/lib/django/core/serializers/json.py	Tue May 25 02:43:45 2010 +0200
@@ -3,6 +3,7 @@
 """
 
 import datetime
+import decimal
 from StringIO import StringIO
 
 from django.core.serializers.python import Serializer as PythonSerializer
@@ -10,11 +11,6 @@
 from django.utils import datetime_safe
 from django.utils import simplejson
 
-try:
-    import decimal
-except ImportError:
-    from django.utils import _decimal as decimal    # Python 2.3 fallback
-
 class Serializer(PythonSerializer):
     """
     Convert a queryset to JSON.
@@ -24,6 +20,7 @@
     def end_serialization(self):
         self.options.pop('stream', None)
         self.options.pop('fields', None)
+        self.options.pop('use_natural_keys', None)
         simplejson.dump(self.objects, self.stream, cls=DjangoJSONEncoder, **self.options)
 
     def getvalue(self):
@@ -38,7 +35,7 @@
         stream = StringIO(stream_or_string)
     else:
         stream = stream_or_string
-    for obj in PythonDeserializer(simplejson.load(stream)):
+    for obj in PythonDeserializer(simplejson.load(stream), **options):
         yield obj
 
 class DjangoJSONEncoder(simplejson.JSONEncoder):