On Tue, Oct 6, 2020 at 7:21 PM Christopher Barker <python...@gmail.com>
wrote:
>
>
> On Tue, Oct 6, 2020 at 10:14 AM Marco Sulla <marco.sulla.pyt...@gmail.com>
> wrote:
>
>> What I do not understand is why you need to use the iterator instead
>> of using the iterable itself. This way you can jump to whatever
>> position without slicing.
>>
>
> if you want the Nth item, that's easy, yes.
>
> if you want to iterate through items N to the end, then how do you do that
> without either iterating through the first N and throwing them away, or
> making a slice, which copies the rest of the sequence?
>
```python
for i in range(start, stop):
x = lst[i]
process(x)
```
The only problem is that there's slightly more execution in Python-land
than in C-land, but that only matters if `process(x)` does very little and
you're really concerned about performance. I can see how the proposal could
be useful but only in very limited use cases.
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