On 21 May 2018 at 12:05, Rhodri James <[email protected]> wrote:
>
> Thanks for the analysis, but I'm afraid I must disagree with your
> recommendation. It was the thought I first had when Chris came out with
> his first draft of the PEP several months ago, but it's not enough to cope
> with my usual use cases. What I normally want is the Python equivalent of:
>
> while ((v = get_something()) != INCONVENIENT_SENTINEL)
> do_something(v);
>
> The condition expression itself is not what I want to capture; I need a
> subexpression, which the "as" syntax won't give me.
>
>
That use case should be covered by
for v in iter(get_something, INCOVENIENT_SENTINEL):
do_something(v)
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