Removing requirement for simplejson and using Python 2.6 built-in JSON

if available, otherwise we fallback to simplejson.

Improved the default jsonification rule for datetime and date objects.

README

@@ -6,7 +6,4 @@ TODO
  
  * Switch "hooks" over to Context Managers.
  
- * Remove requirement for simplejson, since we should be using
-   Python's built-in JSON.
- 
  * JSONify dates as isoformat strings by default.

pecan/jsonify.py

@@ -1,4 +1,8 @@
-from simplejson      import JSONEncoder, dumps
+try:
+    from json import JSONEncoder, dumps
+except ImportError:
+    from simplejson      import JSONEncoder, dumps
+
 from datetime        import datetime, date
 from decimal         import Decimal
 from webob.multidict import MultiDict
@@ -28,7 +32,7 @@ class BaseEncoder(JSONEncoder):
         if hasattr(obj, '__json__') and callable(obj.__json__):
             return obj.__json__()
         elif isinstance(obj, (date, datetime)):
-            return str(obj)
+            return obj.isoformat()
         elif isinstance(obj, Decimal):
             return float(obj)
         elif self.is_saobject(obj):

setup.py

@@ -19,7 +19,6 @@ setup(
     zip_safe             = True,
     install_requires=[
       "WebOb >= 0.9.8", 
-      "simplejson >= 2.0.9",
       "simplegeneric >= 0.7",
       "Genshi >= 0.6",
       "Kajiki >= 0.2.2",