Bug in string.find; was: Re: Proposed PEP: New style indexing,was Re: Bug in slice type

[Antoon Pardon]

Op 2005-08-30, Bengt Richter schreef <bokr at oz.net>:
> On 30 Aug 2005 10:07:06 GMT, Antoon Pardon <apardon at forel.vub.ac.be> wrote:
>
>>Op 2005-08-30, Terry Reedy schreef <tjreedy at udel.edu>:
>>>
>>> "Paul Rubin" <"http://phr.cx"@NOSPAM.invalid> wrote in message 
>>> news:7xy86k3r7n.fsf at ruckus.brouhaha.com...
>>>
>>>> Really it's x[-1]'s behavior that should go, not find/rfind.
>>>
>>> I complete disagree, x[-1] as an abbreviation of x[len(x)-1] is extremely 
>>> useful, especially when 'x' is an expression instead of a name.
>>
>>I don't think the ability to easily index sequences from the right is
>>in dispute. Just the fact that negative numbers on their own provide
>>this functionality.
>>
>>Because I sometimes find it usefull to have a sequence start and
>>end at arbitrary indexes, I have written a table class. So I
>>can have a table that is indexed from e.g. -4 to +6. So how am
>>I supposed to easily get at that last value?
> Give it a handy property? E.g.,
>
>     table.as_python_list[-1]

Your missing the point, I probably didn't make it clear.

It is not about the possibilty of doing such a thing. It is
about python providing a frame for such things that work
in general without the need of extra properties in 'special'
cases.

-- 
Antoon Pardon