txretry 0.0.1

A Twisted class for retrying failed calls with a customizable back-off schedule.

txretry provides a Twisted class RetryingCall that will attempt to call a function until it succeeds. A back-off iterator (an interator yielding intervals) can be provided to set the interval between retried calls. When/if the back-off iterator raises StopIteration the attempt to call the function is aborted. An instance of the RetryingCall class provides a start() method that returns a deferred that will fire with the function result or errback with the first failure encountered.

Usage of the class is described in the following blog post: http://blogs.fluidinfo.com/terry/2009/11/12/twisted-code-for-retrying-function-calls/