don't forget to call superclass __init__

kafka/conn.py

@@ -17,6 +17,7 @@ class KafkaConnection(local):
     since the Kafka API includes a correlation id.
     """
     def __init__(self, host, port, bufsize=4096):
+        super(KafkaConnection, self).__init__()
         self.host = host
         self.port = port
         self.bufsize = bufsize

kafka/partitioner.py

@@ -31,7 +31,8 @@ class RoundRobinPartitioner(Partitioner):
     in a round robin fashion
     """
     def __init__(self, partitions):
-        self._set_partitions(partitions)
+        super(RoundRobinPartitioner, self).__init__(partitions)
+        self.iterpart = cycle(partitions)
 
     def _set_partitions(self, partitions):
         self.partitions = partitions