On Sep 2, 5:16 pm, Steven D'Aprano <st...@remove-this-
cybersource.com.au> wrote:
> On Wed, 02 Sep 2009 16:41:34 -0700, Bob van der Poel wrote:
>
> > But, translating 1, 2 or 3 ints into a valid splice isn't quit that
> > easy? I could figure each value, and convert them to either int or None
> > (key is the None! From my previous try '' doesn't work!)
>
> > But, I still need three possible lines:
>
> > if len(i) == 1:
> > x=x[i(0)]
> > else if len(i) == 2:
> > x=x[i(0):i(1)]
> > ....
>
> items = [int(n) for n in slice_string.split(":")]
> slice(*items)
>
> --
> Steven
Actually, nither this or Jan's latest is working properly. I don't
know if it's the slice() function or what (I'm using python 2.5). But:
x = [1,2,3,4,5]
slice_string="2"
items = [int(n) if n else None for n in slice_string.split(":")]
[slice(*items)]
[1, 2]
not the expected:
[3]
Things like -1 don't work either.
I'm really not sure what's going on, but I suspect it's the way that
slice() is getting filled when the slice string isn't a nice one with
each ":" present?
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