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Re: Tail recursion to while iteration in 2 easy steps

References <l2feu0$n61$1@ger.gmane.org> <1380717085.6985.29063445.6AD889D5@webmail.messagingengine.com>
Date 2013-10-02 14:39 -0700
Subject Re: Tail recursion to while iteration in 2 easy steps
From Mark Janssen <dreamingforward@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.653.1380749987.18130.python-list@python.org> (permalink)

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>> Part of the reason that Python does not do tail call optimization is
>> that turning tail recursion into while iteration is almost trivial, once
>> you know the secret of the two easy steps. Here it is.
>
> That should be a reason it _does_ do it - saying people should rewrite
> their functions with loops means declaring that Python is not really a
> multi-paradigm programming language but rather rejects functional
> programming styles in favor of imperative ones.

Yes, but that's fine.  A PL language that includes every programming
paradigm would be a total mess, if even possible.  Python has
functional programming where it does not conflict with its overall
design.  The only place I find that this is not the case is with
lambda, but that is now adequately fixed with the addition of the
ternary operator.

-- 
MarkJ
Tacoma, Washington

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Re: Tail recursion to while iteration in 2 easy steps Mark Janssen <dreamingforward@gmail.com> - 2013-10-02 14:39 -0700

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