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[Chema Cortés]

On Thursday 21 October 2004 15:06, Batista, Facundo wrote:

> A menos que estés interesado en la velocidad:
> >>> tslice = timeit.Timer(stmt="lst[::-1]", setup="lst = [4,5,6,7,8,9]")
> >>> tslice.timeit()
>
> 0.8081895883415342
>
> >>> trever = timeit.Timer(stmt="lst.reverse()", setup="lst =
> >>> [4,5,6,7,8,9]") trever.timeit()
>
> 0.28939963039995575

En cambio:

>>> tslice=timeit.Timer(stmt="temp=lst[3:];temp.reverse()", setup="lst = [1,2,3,4,5,6,7,8,9]")
>>> tslice.timeit()
1.0246992111206055
>>> tslice=timeit.Timer(stmt="temp=lst[:2:-1]", setup="lst = [1,2,3,4,5,6,7,8,9]")
>>> tslice.timeit()
0.9257819652557373


El cuello de botella está en el "slice".
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