[Tutor] dynamic arrays?

[Brian Jones]

On Mon, Sep 27, 2010 at 11:32 AM, Alex Hall <mehgcap at gmail.com> wrote:

> Hi all,
> One thing I have never much liked about Python is its need for
> specifically sized arrays and lack of a dynamic, array-like data
> structure. For example, the following fails with a "list assignment
> index out of range" error:
>
> a=[]
> i=0
> for l in open("file.txt", "r"):
>  a[i]=l
>   i+=1
>

Is there some reason to use this construct rather than the list object's
'append' method?

for i in open('file.txt', 'r'):
    a.append(l)

brian

>
> Is there something in Python I am missing that would let the above
> work? I am hoping that my annoyance at the apparent lack of such a
> thing is unfounded. BTW, I know why the above throws that exception.
> TIA.
>
> --
> Have a great day,
> Alex (msg sent from GMail website)
> mehgcap at gmail.com; http://www.facebook.com/mehgcap
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-- 
Brian K. Jones
My Blog          http://www.protocolostomy.com
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