Thank you Victor for PEP-Delegating and accepting.

Reducing 8bytes per str object (or 16bytes per non-ASCII str object)
will be a significant
win for all Python users.

On Wed, Jul 15, 2020 at 8:20 AM Victor Stinner <vstin...@python.org> wrote:
>
> Hi,
>
> I have the pleasure of announcing that I accept the PEP 623 "Remove wstr from 
> Unicode", congratulations INADA-san!
>
> I see this PEP as a good way to better communicate on incoming backward 
> incompatible C API changes. The PEP is a good document to explain the 
> Motivation, the Rationale and also to list affected C functions. It can also 
> be used and referenced in What's New in Python documents.
>
> INADA-san: I let you update the PEP status. You may also announce the PEP 
> approval on the capi-sig mailing list.
>
> Victor
>
> Le mer. 8 juil. 2020 à 10:56, Victor Stinner <vstin...@python.org> a écrit :
>>
>> Hi,
>>
>> As the PEP delegate of the PEP 623, I plan to accept PEP 623 "Remove
>> wstr from Unicode" next week. As far as I know, all previous remarks
>> have been taken in account.
>>
>> https://www.python.org/dev/peps/pep-0623/
>>
>> I worked with INADA-san to adjust his PEP 623 plan:
>>
>> * DeprecationWarning warnings will be emitted as soon as Python 3.10
>> to help developers detect the deprecation at runtime, rather than only
>> announcing the deprecation with compiler warnings and in the
>> documentation.
>>
>> * Developers have two Python releases (3.10 and 3.11) with these
>> runtime warnings before functions are removed
>>
>> * The PEP lists all APIs which will be removed in Python 3.12.
>>
>> * The PEP gives links to past discussions and issues.
>>
>> About the "size > 0" condition in "PyUnicode_FromUnicode(NULL, size)
>> and PyUnicode_FromStringAndSize(NULL, size) emit DeprecationWarning
>> when size > 0". INADA-san made sure that Cython avoids
>> PyUnicode_FromUnicode(NULL, 0) to create an empty string: it's already
>> fixed! The fix will be part of the next Cython 0.29.x release (it
>> should be 0.29.21). But it will take time until popular extension
>> modules using Cython will distribute a new release with updated
>> generated C code.
>>
>> INADA-san checked popular PyPI projects. The majority of projects
>> impacted by the PEP are using Cython and so are easy to fix: just
>> regenerate C code with the fixed Cython. He added: "A few projects,
>> pyScss and Genshi are not straightforward. But it is not too hard and
>> I will help them." We have time before Python 3.12 final to update
>> these projects.
>>
>> The PEP 623 is backward incompatible on purpose. If needed, it remains
>> possible to use a single code base working on Python 2.7 and Python
>> 3.12 using #ifdef. But Python 3.12 will not be released before 2023:
>> three years after Python 2 end of life, so I think that it's
>> reasonable for extension modules to consider dropping Python 2 support
>> to implement the PEP 623 (stop using these deprecated C APIs).
>>
>> Victor
>> --
>> Night gathers, and now my watch begins. It shall not end until my death.
>
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-- 
Inada Naoki  <songofaca...@gmail.com>
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