Steven D'Aprano <[EMAIL PROTECTED]> writes: > On Sat, 04 Oct 2008 22:57:23 +0200, Martin Geisler wrote: > > Here's another alternative. Compare: > >>>> x = (2, 3) >>>> (lambda (a,b): a*b)(x) > 6 > > with this: > >>>> (lambda a,b: a*b)(*x) > 6
Letting the callbacks take several arguments would definitely be the nicest syntax, but I'm unfortunately restricted by the Twisted framework: there all functions in a callback chain return one result which is passed to the next callback as the first argument. That is why I do a fair amount of tuple unpacking in my code. >> From reading the PEP-3113 I got the impression that the author >> thought that this feature was unused and didn't matter. With this I >> wish to say that it matters to me. > > Alas, I think it's too late. I feel your pain. Thanks! And I know it's too late, I should have found out about this earlier :-( > The final release of Python 3.0 hasn't been made yet. If you really > care strongly about this, you could write to the python-dev mailing > list and ask if it is worth trying to change their mind about tuple > unpacking. They'll almost certainly say no, but there's a chance it > might be reverted in 3.1. I can't see this being changed back and forth like that, so I don't think I'll bother. But thanks for the support. -- Martin Geisler VIFF (Virtual Ideal Functionality Framework) brings easy and efficient SMPC (Secure Multi-Party Computation) to Python. See: http://viff.dk/.
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