list of empty lists

[Andrei Kulakov]

In article <3CA11A5B.5000501 at bioeng.ucsd.edu>, Curtis Jensen wrote:
> Is there a easy way to make a list of an arbitray number of empty lists?
> 
> I can do something like:
> >>> some_number = 3
> >>> l = [[]] * some_number
> >>> l
> [[], [], []]
> 
> Unfortunatly this has an unfortunate side affect.  Whatever I do to one 
> of the list gets done to the other lists. ie:
> >>> l[0].append(1)
> >>> l
> [[1], [1], [1]]
> 
> 
> In this case, what I would like is three independantly empty lists.  I 
> can make a for loop to loop "some_number" of times and append an empty 
> list at each itteration.  Is there a simpler way?
> Thanks.
>
I think loop is the simplest way.

> 


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