Raoul Gough <RaoulGough@[...].uk>  wrote:
>  "Joel de Guzman" <djowel@[...].uk> writes:
>  
> > Mike Thompson <mike.thompson@[...].au> wrote:
>  [snip]
> >> The IndexError arises because vector_indexing_suite defends against
> >> an slice index being too big, rather than the python list approach
> >> which regards a slice index > len(L) as equal to len(L).  So, the
> >> line of padOrChop() which says:
> >> 
> >>     lst[size:] = [padValue] * diff
> >> 
> >> causes an exception when size > len(lst).
> >> 
> >> Should vector_indexing_suite be altered to give behaviour more like
> >> that of lists in this regard?
> > 
> > It should. I think you uncovered a vector_indexing_suite bug. I'll
> > correct this as soon as I can.
>  
>  Hi Joel,
>  
>  You might find the PySlice_GetIndices function useful - it take a
>  Python slice object and a container length and returns normalized
>  start and stop values (even handling negative indices, IIRC). At a
>  guess, this is probably how the Python list works internally too.

I *was* using PySlice_GetIndices. The problem was (if I'm not mistaken),
is that it does not handle non-integer inteces. Correct me if I'm wrong.
For example, I have a case where the indexes are dates that I must convert
to a valid index.

-- 
Joel de Guzman
http://www.boost-consulting.com
http://spirit.sf.net



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