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how to get INDEX count, or last number of Index


On 24/05/2018 03:37, Terry Reedy wrote:
> On 5/23/2018 8:46 PM, bartc wrote:
>> On 24/05/2018 00:44, Terry Reedy wrote:
>>> On 5/23/2018 5:56 PM, Rob Gaddi wrote:
>>>> On 05/23/2018 02:51 PM, asa32sd23 at gmail.com wrote:
>>>>> s = "kitti"
>>>>>
>>>>> 0,1,2,3,4
>>>>> k,i,t,t,i
>>>>>
>>>>> how do i retrieve '4'. i know i can do a len(s)-1,
>>>
>>> Use -1, which is the same as len(s)-1 but faster.
>>
>> This illustrates one problem with having a example sequence of values 
>> being identical to the indices of those values.
>>
>> I would have used 10,20,30,40,50 so there could be no such mix-up.
>>
>> Because I assumed here that the OP wanted the index of the last value, 
>> the '4' they said they wanted, not the last value itself which would 
>> be 'i'.
>>
>> And actually, the subject line seems to confirm that.
>>
>> In that case, using a '-1' index won't work.
> 
> You snipped the code that shows that -1 does work to fetch the last 
> character.

<snip again>

I'm sure it does.

But it's not clear whether the OP wants the last character, or the index 
of the last character. The subject line suggests the latter.

-- 
bart