[Python-Dev] Re: PEP 701 – Syntactic formalization of f-strings

2022年12月21日 09:32:39 -0800

Hi everyone,
For those that are not following the discussion in the discourse thread, I
am holding a poll to get an idea of the community opinions on how quotes
should work in nested f-strings for PEP 701:
https://discuss.python.org/t/pep-701-syntactic-formalization-of-f-strings/22046/24
For us is very important to have everyone represented and every opinion
heard and taken into consideration so feel free to vote in the poll leaving
your opinion. But please, **read first the PEP and the previous
discussion**. This is very important to get the context and previous
arguments in favour and against the different options.
Thanks a lot for your help!
Regards from cloudy London,
Pablo Galindo Salgado
On 2022年12月19日 at 17:59, Pablo Galindo Salgado <[email protected]>
wrote:
> Hi everyone,
>
> I am very excited to share with you a PEP that Batuhan Taskaya, Lysandros
> Nikolaou and myself have been working on recently: PEP 701 - PEP 701 –
> Syntactic formalization of f-strings <https://peps.python.org/pep-0701/>.
>
> We believe this will be a great improvement in both the maintainability of
> CPython and the usability of f-strings.
>
> We look forward to hearing what you think about this and to get your
> feedback!
>
> *Here is a TLDR for your convenience:*
>
> - The PEP proposes a formalized grammar for f-strings in Python by
> adding f-strings directly into the Grammar instead of using a two-pass
> hand-written parser.
> - This would lift some existing restrictions for f-strings that (we
> believe) will improve the user experience with f-strings.
> - Other benefits include:
> - Reduced maintenance costs for f-string parsing code as well as
> improved usability for users and library developers.
> - Better error messages involving f-strings by leveraging the PEG
> parser machinery.
> - The proposed changes would improve the overall consistency of the
> language and provide a way for alternative implementations to accurately
> implement f-strings.
>
> *** IMPORTANT: direct all discussions to the discussion thread on
> discourse: 
> https://discuss.python.org/t/pep-701-syntactic-formalization-of-f-strings/22046
> <https://discuss.python.org/t/pep-701-syntactic-formalization-of-f-strings/22046>
> ***
>
> Thanks a lot, everyone for your time!
> Regards from rainy London,
> Pablo Galindo Salgado
>
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