fix an exception is no value is present in json payload

oec/core.py

@@ -61,6 +61,7 @@
         result = sender.send()
 
         resultparser = ResultParser(result)
+        index = 0
         for index, item in enumerate(resultparser.parse_result()):
             success, info = item
             if not success:

oec/reader.py

 import ijson
+from decimal import Decimal
 
 
 class Reader(object):
@@ -8,4 +9,10 @@
 
     def read(self):
         for dic in self.objects:
+
+            for k, v in dic.iteritems():
+                # scan the result to cast all decimals into float...
+                # because XMLRPC-LIB cannot send Decimal
+                if isinstance(v, Decimal):
+                    dic[k] = float(v)
             yield dic