A small quiz
Peter Otten
__peter__ at web.de
Fri Jan 3 13:01:32 EST 2020
Alan Bawden wrote:
> ram at zedat.fu-berlin.de (Stefan Ram) writes:
> ...
>> So I was looking for a predefined object from the standard
>> library that already /is/ an iterator (with no need to use
>> »iter«).
>>
>> I found exactly one such object (which can be used after a
>> »from ... import ...« statement). Can you guess what it is?
>
> Well, there's sys.stdin.
>
> But I would expect beginning students to find the effect of typing
> "next(sys.stdin)" to the commnd prompt to be a bit confusing...
>
There are a lot of itertools.count() objects, e. g.
>>> from multiprocessing.pool import job_counter
>>> next(job_counter)
0
>>> next(job_counter)
1
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