From: Robert Klemme <shortcutter@...>
Date: 2010-02-17T03:01:20+09:00
Subject: Re: Parallel assignments vs. Serial assigments

On 02/15/2010 05:50 PM, Jesús Gabriel y Galán wrote:
> 2010/2/15 Jesús Gabriel y Galán <jgabrielygalan@gmail.com>:
>> I think it might be because the parallel assigment creates an array
>> under the hood?

However it is done technically, parallel assignment needs more space 
because it has to evaluate *all* right hand sides before doing any 
assignments.  Otherwise swapping would not be possible

a, b = b, a

So, yes, it's likely an Array under the hood but even if not the 
parallel assignment of two variables needs to store two object 
references while sequential assignments of an arbitrary number of 
elements gets away with space for a single reference (if you need it at 
all).

Kind regards

	robert

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