THRIFT-3506 Eliminate old style classes from library code
Client: Python
Patch: Nobuaki Sukegawa

This closes #758
diff --git a/lib/py/src/protocol/TJSONProtocol.py b/lib/py/src/protocol/TJSONProtocol.py
index 3539412..acfce4a 100644
--- a/lib/py/src/protocol/TJSONProtocol.py
+++ b/lib/py/src/protocol/TJSONProtocol.py
@@ -559,7 +559,7 @@
     self.writeJSONBase64(binary)
 
 
-class TJSONProtocolFactory:
+class TJSONProtocolFactory(object):
 
   def getProtocol(self, trans):
     return TJSONProtocol(trans)