[Twisted-Python] DeferredList.addDeferred behaviour

Christopher Armstrong radix at twistedmatrix.com
Wed Feb 18 22:19:43 EST 2004

Andrew Bennetts wrote:

> On Wed, Feb 18, 2004 at 09:37:53PM -0300, RITA Y/O RODRIGO DIAZ Y/O BENENSON wrote:

>>The workaround it to first create the list of deferred instance and then
>>instanciate with it the DeferredList. But what sense does have the
>>addDeferred method then ? I this behaviour what is supposed to be ?
> It's not clear to me what the right behaviour here is -- if a DeferredList
> has some number of Deferreds that have all been called, then of course the
> DeferredList should be marked as called, too.  But if you then add an
> uncalled Deferred to it, that sounds like a bug.  

Similar to d.result, IMO, d.called is an "invite-only attribute", in the 
words of Glyph. If you want to touch it, don't whine about its 
semantics. :-)

> Can anyone offer reasons why addDeferred should stay?  Donovan -- CVS says
> you added it, can you remember why?  Is anyone using it?

And addDeferred looks like it should really be _addDeferred.

  Twisted | Christopher Armstrong: International Man of Twistery
   Radix  |          Release Manager,  Twisted Project
---------+           http://radix.twistedmatrix.com/
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