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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