Need to likely dump data to log to be able to debug this... try enabling hex perhaps? 2009-07-17 11:48:40,987 ...message.message_handler : DEBUG Removed the monitor for (<bound method ParcelManager.onParcelDwellReply of <pyogp.lib.base.parcel.ParcelManager object at 0x164e0b0>>,) by {'LocalID': 29} 2009-07-17 11:48:40,993 message.udpdispatcher : DEBUG Sent packet (Host is '216.82.49.230:12035') : ParcelDwellRequest (677) 2009-07-17 11:48:40,994 message.udpdispatcher : DEBUG Sent packet (Host is '216.82.49.230:12035') : ParcelDwellRequest (678) 2009-07-17 11:48:40,996 message.udpdispatcher : DEBUG Sent packet (Host is '216.82.49.230:12035') : ParcelDwellRequest (679) 2009-07-17 11:48:40,996 message.udpdispatcher : DEBUG Sent packet (Host is '216.82.49.230:12035') : ParcelDwellRequest (680) Traceback (most recent call last): File "/Users/enus/svn/pyogp/trunk/eggs/eventlet-0.8.11-py2.5.egg/eventlet/hubs/selects.py", line 52, in wait cb(fileno) File "/Users/enus/svn/pyogp/trunk/eggs/eventlet-0.8.11-py2.5.egg/eventlet/api.py", line 149, in cb current.switch() File "/Users/enus/svn/pyogp/trunk/eggs/eventlet-0.8.11-py2.5.egg/eventlet/api.py", line 234, in _spawn_startup return cb(*args, **kw) File "/Users/enus/svn/pyogp/trunk/src/pyogp.lib.base/pyogp/lib/base/region.py", line 467, in _processUDP msg_buf, msg_size) File "/Users/enus/svn/pyogp/trunk/src/pyogp.lib.base/pyogp/lib/base/message/udpdispatcher.py", line 98, in receive_check recv_packet = self.udp_deserializer.deserialize(msg_buf) File "/Users/enus/svn/pyogp/trunk/src/pyogp.lib.base/pyogp/lib/base/message/udpdeserializer.py", line 101, in deserialize raise exc.MessageDeserializationError("packet parsing", error) MessageDeserializationError: Error serializing 'packet parsing' due to reason: 'Error serializing 'D' due to reason: 'unpack requires a string argument of length 4''