Re: [Twisted-Python] deferred proposed update

Fabrice Coudert wrote:

So, I restate the probleme with chainDeferred : chainDeferred(d) is equivalent to addCallbacks(d.callback, d.errback), but this two methods are not really sort of callback methods for deferred coz they didn't return a result.

This is not a problem, this is a specification of the way it works. chainDeferred is a holdover from before one could sensibly return one Deferred from the callback to another. If you want to add callbacks in some other way, don't use chainDeferred.