Switch from `logger.warn` to `logger.warning`
diff --git a/lib/py/src/transport/TSocket.py b/lib/py/src/transport/TSocket.py
index c8b4287..459f043 100644
--- a/lib/py/src/transport/TSocket.py
+++ b/lib/py/src/transport/TSocket.py
@@ -208,7 +208,7 @@
         else:
             # We cann't update backlog when it is already listening, since the
             # handle has been created.
-            logger.warn('You have to set backlog before listen.')
+            logger.warning('You have to set backlog before listen.')
 
     def listen(self):
         res0 = self._resolveAddr()