Hi Blair
Looks pretty good. To streamline the usage and make the intent more apparent from a brief glance at the header you might consider turning it into a decorator, like
Thanks for the suggestion & the pointer. I'd not seen that page. I don't think this is well suited to decorators, at least not with the kinds of usages I am imagining. If you decorate a function, it's done once and for all. So anyone who calls the function gets the single one-size-fits-all decorated behavior. I'd rather the behavior was left in the hands of the caller. That's kind of the point: give the caller flexible control over what happens if something goes wrong, including passing in your custom failure handler, etc. Maybe a hybrid approach would be more useful: write a function which, passed a function, returns a retrying version of that function that returns a deferred that fires when the original function has succeeded (or ultimately failed). The result could then be passed around, called by multiple pieces of code, etc. Hmmm... Thanks again. Terry