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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Wed, 29 Apr 2015 16:38:43 -0600
Subject: Re: Lucky numbers in Python
To: Python <python-list@python.org>
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On Wed, Apr 29, 2015 at 3:45 PM, Cecil Westerhof <Cecil@decebal.nl> wrote:
> Op Wednesday 29 Apr 2015 21:57 CEST schreef Ian Kelly:
>> And although it's not clear to me what this is supposed to be doing,
>> you probably no longer need the middle term if the intention is to
>> continue deleting all the way to the end of the list (if it is then
>> I think you have a bug in the existing implementation, since the
>> last item in the list can never be deleted).
>
> What do you mean by this? Executing:
>     lucky_numbers(5)
> gives:
>     [1, 3]
>
> So the last element (5) is deleted.

Off by one error on my part. This is why negative skip values on
ranges and slices are not recommended: they're confusing. :-)

In that case you can definitely omit the middle term of the slice,
which will be both more concise and clearer in intent, though probably
not significantly faster.