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[Python-Dev] Tricky way of of creating a generator via a comprehension expression

Ivan Levkivskyi levkivskyi at gmail.com
Thu Nov 23 07:01:08 EST 2017 
On 23 November 2017 at 12:49, Antoine Pitrou <solipsis at pitrou.net> wrote:

> On Thu, 23 Nov 2017 12:39:46 +0100
> Ivan Levkivskyi <levkivskyi at gmail.com> wrote:
> >
> > Also I think it makes sense to keep discussion in one place, i.e. either
> > here xor at https://bugs.python.org/issue10544
>
> The bug tracker can be used for implementation discussions, but general
> language design decisions (such as whether to allow or not a certain
> construct) should take place on python-dev.
>
> I'm still in favour of deprecating and then disallowing.  Nobody seems
> to have presented a real-world use case that is made significantly
> easier by trying to "fix" the current behaviour (as opposed to
> spelling the loop explicitly).  I do asynchronous programming using
> "yield" every day in may job (because of compatibility requirements
> with Python 2) and I've never had once the need to write a "yield"
> inside a comprehension or generator expression.
>
>
"I don't use it, therefore it is not needed"  is a great argument, thanks.
Lets just forget about two SO questions and dozens people who up-voted it.
Do you use async comprehensions? If not, then we don't need them either.

--
Ivan
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