Description of problem: The client blows up when heartbeats are enabled (i.e. when receiving a heartbeat from the server). Also the client doesn't actually check that heartbeats are received at the appropriate interval. This is problematic for reconnect since this is necessary to ensure that dead TCP connections are detected, something that is necessary for reconnect to function properly in all cases. Version-Release number of selected component (if applicable): python-qpid-0.7.946106-11 How reproducible: 100% Steps to Reproduce: 1. create a connection with the heartbeat parameter specified, e.g: conn = Connection(..., heartbeat=1) 2. wait for a heartbeat to arrive from the server (logging may be useful to verify that this is/has happened) Actual results: client blows up with an internal error Expected results: client should function normally