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

This closes #758
diff --git a/lib/py/src/server/TServer.py b/lib/py/src/server/TServer.py
index 130f730..30f063b 100644
--- a/lib/py/src/server/TServer.py
+++ b/lib/py/src/server/TServer.py
@@ -31,7 +31,7 @@
 from thrift.transport import TTransport
 
 
-class TServer:
+class TServer(object):
   """Base interface for a server, which must have a serve() method.
 
   Three constructors for all servers: