Much thanks orbitz and radix. Went down the wrong path on something subtle. I thought I had read in an example document, "d.callback" to the reactor.callLater() whereas it turns out to be "callback" and not "d.callback". I should have stopped and slept instead of going on sleepless fumes! Cheers, Sergio

From: Christopher Armstrong Reply-To: Twisted discussion stuff To: Twisted discussion stuff Subject: Re: [Twisted-Python] reactor.callLater always requires args object? Date: Wed, 21 Jul 2004 14:55:00 -0400

Sergio Trejo wrote:

...

There's sure to be a good reason why, perhaps something utterly obvious to most but as a newbie I'm still trying to grok as much as possible where needed. Thanks for any clarification.

*Deferreds* need a result, not callLater. As orbitz mentioned, reactor.callLater(3, checkForSanity) would work fine. d.callback, as well as all callbacks added to a Deferred with d.addCallback, always require at least one argument.

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