Added AnyJSON to json format system

tablib/formats/_json.py

@@ -3,15 +3,9 @@
 """ Tablib - JSON Support
 """
 
-try:
-    import json  # load system JSON (Python >= 2.6)
-except ImportError:
-    try:
-        import simplejson as json
-    except ImportError:
-        from tablib.packages import simplejson as json # use the vendorized copy
-
 import tablib.core
+from tablib.packages import anyjson
+
 
 
 title = 'json'
@@ -20,26 +14,26 @@ extentions = ('json', 'jsn')
 
 def export_set(dataset):
     """Returns JSON representation of Dataset."""
-    return json.dumps(dataset.dict)
+    return anyjson.serialize(dataset.dict)
 
 
 def export_book(databook):
     """Returns JSON representation of Databook."""
-    return json.dumps(databook._package())
+    return anyjson.serialize(databook._package())
 
 
 def import_set(dset, in_stream):
     """Returns dataset from JSON stream."""
 
     dset.wipe()
-    dset.dict = json.loads(in_stream)
+    dset.dict = anyjson.deserialize(in_stream)
 
 
 def import_book(dbook, in_stream):
     """Returns databook from JSON stream."""
 
     dbook.wipe()
-    for sheet in json.loads(in_stream):
+    for sheet in anyjson.deserialize(in_stream):
         data = tablib.core.Dataset()
         data.title = sheet['title']
         data.dict = sheet['data']
@@ -49,7 +43,7 @@ def import_book(dbook, in_stream):
 def detect(stream):
     """Returns True if given stream is valid JSON."""
     try:
-        json.loads(stream)
+        anyjson.deserialize(stream)
         return True
     except ValueError:
         return False