As a final followup before bed... I chose not to have a 'cancel' method on my class because that seemed misleading. You're not really canceling anything. You're just asking that a deferred that you got earlier be fired right now with a value of your choosing. So I made 2 methods, and named them 'callback' and 'errback'. The Subject above is reasonably accurate, it's like a pseudo-Deferred class. Everyone works with regular deferreds, as usual, but if you know you might want to "cancel" a deferred by firing it early, you can call the call/errback methods on an instance of CancellableDeferred. Because the deferred you're holding is not the one that was obtained by calling self._f, it will fire immediately, which is surely part of the point of cancellation. In other words, using the word "cancel" is just a convenient short / casual description of what's actually being done.
I hope all these words are making things more clear, not less... Terry _______________________________________________ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
