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[Python-ideas] Python-ideas Digest, Vol 131, Issue 106

Chris Angelico rosuav at gmail.com
Tue Oct 31 04:01:34 EDT 2017 
On Tue, Oct 31, 2017 at 6:46 PM, Steven D'Aprano <steve at pearwood.info> wrote:
> On Tue, Oct 31, 2017 at 06:02:34PM +1100, Chris Angelico wrote:
>> One small change: If you use next(i) instead of i.next(), your code
>> should work on both Py2 and Py3. But other than that, I think it's
>> exactly the same as most people would expect of this function.
>
> Not me. As far as I can tell, that's semantically equivalent to:
>
> def single(i):
>     result, = i
>     return result
>
> apart from slightly different error messages.

I saw the original code as being like the itertools explanatory
functions - you wouldn't actually USE those functions, but they tell
you what's going on when you use the simpler, faster, more compact
form.

ChrisA
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