Re: PEP 701 – Syntactic formalization of f- strings

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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/2=
2046/24

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 Mon, 19 Dec 2022 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 =E2=
=80=93
> Syntactic formalization of f-strings <https://peps.python.org/pep-0701/>.
>
> We believe this will be a great improvement in both the maintainability o=
f
> 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 accur=
ately
>       implement f-strings.
>
> *** IMPORTANT: direct all discussions to the discussion thread on
> discourse: https://discuss.python.org/t/pep-701-syntactic-formalization-o=
f-f-strings/22046
> <https://discuss.python.org/t/pep-701-syntactic-formalization-of-f-string=
s/22046>
> ***
>
> Thanks a lot, everyone for your time!
> Regards from rainy London,
> Pablo Galindo Salgado
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:verdana,=
sans-serif;font-size:small;color:#000000">Hi everyone,</div><div class=3D"g=
mail_default" style=3D"font-family:verdana,sans-serif;font-size:small;color=
:#000000"><br></div><div class=3D"gmail_default" style=3D"font-family:verda=
na,sans-serif;font-size:small;color:#000000">For those that are not followi=
ng the discussion in the discourse thread, I am holding a poll to get an id=
ea of the community opinions on how quotes should work in nested f-strings =
for PEP 701:</div><div class=3D"gmail_default" style=3D"font-family:verdana=
,sans-serif;font-size:small;color:#000000"><br></div><div class=3D"gmail_de=
fault" style=3D"font-family:verdana,sans-serif;font-size:small;color:#00000=
0"><a href=3D"https://discuss.python.org/t/pep-701-syntactic-formalization-=
of-f-strings/22046/24">https://discuss.python.org/t/pep-701-syntactic-forma=
lization-of-f-strings/22046/24</a><br></div><div class=3D"gmail_default" st=
yle=3D"font-family:verdana,sans-serif;font-size:small;color:#000000"><br></=
div><div class=3D"gmail_default" style=3D"font-family:verdana,sans-serif;fo=
nt-size:small;color:#000000">For us is very important to have everyone repr=
esented and every opinion heard and taken into=C2=A0consideration so feel f=
ree 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 contex=
t and previous arguments in favour and against the different options.</div>=
<div class=3D"gmail_default" style=3D"font-family:verdana,sans-serif;font-s=
ize:small;color:#000000"><br></div><div class=3D"gmail_default" style=3D"fo=
nt-family:verdana,sans-serif;font-size:small;color:#000000">Thanks a lot fo=
r your help!</div><div class=3D"gmail_default" style=3D"font-family:verdana=
,sans-serif;font-size:small;color:#000000"><br></div><div class=3D"gmail_de=
fault" style=3D"font-family:verdana,sans-serif;font-size:small;color:#00000=
0">Regards from cloudy London,</div><div class=3D"gmail_default" style=3D"f=
ont-family:verdana,sans-serif;font-size:small;color:#000000">Pablo Galindo =
Salgado</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D=
"gmail_attr">On Mon, 19 Dec 2022 at 17:59, Pablo Galindo Salgado &lt;<a hre=
f=3D"mailto:[email protected]">[email protected]</a>&gt; wrote:<br></di=
v><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;borde=
r-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204)=
;padding-left:1ex"><div dir=3D"ltr"><div class=3D"gmail_default"><p style=
=3D"margin-top:0px"><font color=3D"#000000" style=3D"background-color:rgb(2=
55,255,255)" face=3D"arial, sans-serif">Hi everyone,</font></p><p><font fac=
e=3D"arial, sans-serif"><font color=3D"#000000" style=3D"background-color:r=
gb(255,255,255)">I am very excited to share with you a PEP that<span>=C2=A0=
</span></font><span style=3D"color:rgb(0,0,0);white-space:pre-wrap">Batuhan=
 Taskaya, </span><span style=3D"color:rgb(0,0,0);white-space:pre-wrap">Lysa=
ndros Nikolaou </span><font color=3D"#000000">and myself have been working =
on recently:<span>=C2=A0</span><a href=3D"https://peps.python.org/pep-0701/=
" style=3D"text-decoration:none" target=3D"_blank">PEP 701 - PEP 701 =E2=80=
=93 Syntactic formalization of f-strings</a>.=C2=A0</font></font></p><p><fo=
nt face=3D"arial, sans-serif"><font color=3D"#000000">We believe this will =
be a great improvement in both the maintainability of CPython and the usabi=
lity of f-strings.</font></font></p><p><font color=3D"#000000" style=3D"bac=
kground-color:rgb(255,255,255)" face=3D"arial, sans-serif">We look forward =
to hearing what you think about this and to get your feedback!</font></p><p=
><b style=3D"color:rgb(0,0,0);font-family:arial,sans-serif">Here is a TLDR =
for your convenience:</b><br></p><ul style=3D"margin:1em 0px 1em 1.25em;pad=
ding:0px 0px 0px 1.25em;clear:both"><li><font color=3D"#000000" face=3D"ari=
al, sans-serif">The PEP proposes a formalized grammar for f-strings in Pyth=
on by adding f-strings directly into the Grammar instead of using a two-pas=
s hand-written parser.</font></li><li><font color=3D"#000000" face=3D"arial=
, sans-serif">This would lift some existing restrictions for f-strings that=
 (we believe) will improve the user experience with f-strings.</font></li><=
li><font color=3D"#000000" face=3D"arial, sans-serif">Other benefits includ=
e:</font><ul style=3D"margin:0px;padding:0px 0px 0px 1.25em;clear:both"><li=
><font color=3D"#000000" face=3D"arial, sans-serif">Reduced maintenance cos=
ts for f-string parsing code as well as improved usability for users and li=
brary developers.</font></li><li><font color=3D"#000000" face=3D"arial, san=
s-serif">Better error messages involving f-strings by leveraging the PEG pa=
rser machinery.</font></li><li><font color=3D"#000000" face=3D"arial, sans-=
serif">The proposed changes would improve the overall consistency of the la=
nguage and provide a way for alternative implementations to accurately impl=
ement f-strings.</font></li></ul></li></ul><p><b><font color=3D"#000000" st=
yle=3D"background-color:rgb(255,255,255)" face=3D"arial, sans-serif">** IMP=
ORTANT: direct all discussions to the discussion thread on discourse:=C2=A0=
</font><a href=3D"https://discuss.python.org/t/pep-701-syntactic-formalizat=
ion-of-f-strings/22046" target=3D"_blank">https://discuss.python.org/t/pep-=
701-syntactic-formalization-of-f-strings/22046</a> **</b></p><p><font color=
=3D"#000000" style=3D"background-color:rgb(255,255,255)" face=3D"arial, san=
s-serif">Thanks a lot, everyone for your time!</font></p>Regards from rainy=
 London,</div><div class=3D"gmail_default">Pablo Galindo Salgado</div></div=
>
</blockquote></div>

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