My bad, you have pointed to ambiguity accurately.
Thanks for taking time to correct me.
Regards,
DG
> On 20 Sep 2023, at 16:09, Celelibi wrote:
>
> 2023-09-12 7:10 UTC+02:00, Dom Grigonis :
>> I don’t think your example depicts the ambiguity well.
>>
>> 1. is the correct parsing of the Original1, 2. is the correct parsing of
>> Original2 and 3. is not correct for either of those.
>>
>> Original1
>>> while a < b (x := c) - 42
>> Original2
>>> while a < b(x := c) - 42
>
> They're the same. AFAIK `foo(...)` and `foo (...)` are parsed exactly
> the same way. A space in this place is irrelevant. And it's unlikely
> to change in the next few decades.
>
>>
>> 1. In this case, it’s obviously this one
>>> while a < b:
>>> (x := c) - 42
>
> Why tho? Why would this one be more obvious than the other
> alternatives? What would be the rules to decide? If I may quote the
> PEP 20:
>> In the face of ambiguity, refuse the temptation to guess.
>
>> 2. In here your removed the space, which is not ambiguity, but rather
>> mistype
> Again, the space in this place doesn't matter. I removed it to show
> more explicitely how it could be parsed.
>
>> 3. Same as in 2. But also, this is not an option, because if there was no
>> indent on the next line, then body exists. So this is incorrect.
>>> Or:
>>> while a < b(x := c) - 42:
>>> # ???
>
> I actually think this is the better parsing of the three: a SyntaxError.
>
>
> Celelibi
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