[Tutor] Sort Output

[Shulin Zhuang]

If you use sort(a), it will be ok.

>>>a =[4,2,5,8]

 >>>b=a

>>> sort(a)
: array([2, 4, 5, 8])
>>> b
 [4, 2, 5, 8]
>>> a
 [4, 2, 5, 8]

On Wed, Sep 17, 2008 at 12:30 PM, Wayne Watson <sierra_mtnview at sbcglobal.net
> wrote:

>  I'm using Python 2.4 in Win XP. I was surprised to find the result below.
>
> >>> a =[4,2,5,8]
> >>> b = a
> >>> a.sort()
> >>> a
> [2, 4, 5, 8]
> >>> b
> [2, 4, 5, 8]
>
> b no longer has the same value as it began. Apparently to prevent sort from
> making it the same I have to resort to copying b into a first? What is the
> proper way to retain a variable with the original values of a?
> --
>
>            Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
>
>              (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
>               Obz Site:  39° 15' 7" N, 121° 2' 32" W, 2700 feet                        "Though no one can go back and make a brand new start,
> 	     ANYONE can start from now and make a brand new end."
> 		                    -- Anonymous
>
>                     Web Page: <www.speckledwithstars.net/>
>
>
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