mdp/rturk — pull request #22 by denniskuczynski (2012-05-25 16:28:01+00:00)
Title: Added ServiceUnavailable error type for detecting/handling HTTP Service Unavailable errors

Added new ServiceUnavailable < RTurkError to simplify the detection of HTTP 503 Service Unavailable Errors from AWS if the service is down or the Client IP is being throttled during a batch task.

This was helpful for me when doing batch processing and hitting the MTurk velocity limits.
http://aws.amazon.com/releasenotes/Amazon-Mechanical-Turk/1470

Let me know what you think.