Python 3.12.0 alpha 4 released

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I'm pleased to announce the release of Python 3.12 alpha 4.

https://www.python.org/downloads/release/python-3120a4/

*This is an early developer preview of Python 3.12*.

Major new features of the 3.12 series, compared to 3.11

Python 3.12 is still in development. This release, 3.12.0a4 is the fourth
of seven planned alpha releases.

Alpha releases are intended to make it easier to test the current state of
new features and bug fixes and to test the release process.

During the alpha phase, features may be added up until the start of the
beta phase (2023-05-08) and, if necessary, may be modified or deleted up
until the release candidate phase (2023-07-31). Please keep in mind that
this is a preview release and its use is *not *recommended for production
environments.

Many new features for Python 3.12 are still being planned and written.
Among the new major new features and changes so far:

   - Even more improved error messages. More exceptions potentially caused
   by typos now make suggestions to the user.
   - Support for the Linux perf profiler to report Python function names in
   traces.
   - The deprecated wstr and wstr_length members of the C implementation of
   unicode objects were removed, per PEP 623
   <https://peps.python.org/pep-0623>.
   - In the unittest module, a number of long deprecated methods and
   classes were removed. (They had been deprecated since Python 3.1 or 3.2).
   - The deprecated smtpd and distutils modules have been removed (see PEP
   594 <https://peps.python.org/pep-0594/> and PEP 632
   <https://peps.python.org/pep-0632/>). The setuptools package (installed
   by default in virtualenvs and many other places) continues to provide the
   distutils module.
   - A number of other old, broken and deprecated functions, classes and
   methods have been removed.
   - (Hey,* fellow core developer*, if a feature you find important is
   missing from this list, let Thomas know <[email protected]>.)


For more details on the changes to Python 3.12, see What's new in Python
3.12 <https://docs.python.org/dev/whatsnew/3.12.html>. The next pre-release
of Python 3.12 will be 3.12.0a5, currently scheduled for 2023-02-06.

More resources

Online Documentation <https://docs.python.org/3.12/>.
PEP 693 <https://www.python.org/dev/peps/pep-0693/>, the Python 3.12
Release Schedule.
Report bugs via GitHub Issues <https://github.com/python/cpython/issues>.
Help fund Python and its community <https://www.python.org/psf/donations/>.

And now for something completely different

Two haikus apt, as Python's development springs ever forward.

I write, erase, rewrite
> Erase again, and then
> A poppy blooms.


Haiku by Katsushika Hokusai.

O snail
> Climb Mount Fuji,
> But slowly, slowly!


Haiku by Kobayashi Issa.

Enjoy the new releases

Thanks to all of the many volunteers who help make Python Development and
these releases possible! Please consider supporting our efforts by
volunteering yourself or through organization contributions to the Python
Software Foundation.

Regards from chilly Amsterdam,

Your release team,
Thomas Wouters
Ned Deily
Steve Dower
-- 
Thomas Wouters <[email protected]>

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<div dir=3D"ltr"><br clear=3D"all"><div>I&#39;m pleased to announce the rel=
ease of Python 3.12 alpha 4.<br><br><a href=3D"https://www.python.org/downl=
oads/release/python-3120a4/" target=3D"_blank">https://www.python.org/downl=
oads/release/python-3120a4/</a><br><br><b>This is an early developer previe=
w of Python 3.12</b>.<br><br><font size=3D"4">Major new features of the 3.1=
2 series, compared to 3.11<br></font><br>Python 3.12 is still in developmen=
t. This release, 3.12.0a4 is the fourth of seven planned alpha releases.<br=
><br>Alpha releases are intended to make it easier to test the current stat=
e of new features and bug fixes and to test the release process.<br><br>Dur=
ing the alpha phase, features may be added up until the start of the beta p=
hase (2023-05-08) and, if necessary, may be modified or deleted up until th=
e release candidate phase (2023-07-31). Please keep in mind that this is a =
preview release and its use is <b>not </b>recommended for production enviro=
nments.<br><br>Many new features for Python 3.12 are still being planned an=
d written. Among the new major new features and changes so far:<br><ul><li =
style=3D"margin-left:15px">Even more improved error messages. More exceptio=
ns potentially caused by typos now make suggestions to the user.</li><li st=
yle=3D"margin-left:15px">Support for the Linux=C2=A0<font face=3D"verdana, =
sans-serif">perf=C2=A0</font>profiler to report Python function names in tr=
aces.</li><li style=3D"margin-left:15px">The deprecated=C2=A0<font face=3D"=
verdana, sans-serif">wstr=C2=A0</font>and=C2=A0<font face=3D"verdana, sans-=
serif">wstr_length=C2=A0</font>members of the C implementation of unicode o=
bjects were removed, per=C2=A0<a href=3D"https://peps.python.org/pep-0623" =
target=3D"_blank">PEP 623</a>.</li><li style=3D"margin-left:15px">In the=C2=
=A0<font face=3D"verdana, sans-serif">unittest=C2=A0</font>module, a number=
 of long deprecated methods and classes were removed. (They had been deprec=
ated since Python 3.1 or 3.2).</li><li style=3D"margin-left:15px">The depre=
cated=C2=A0<font face=3D"verdana, sans-serif">smtpd=C2=A0</font>and=C2=A0<f=
ont face=3D"verdana, sans-serif">distutils=C2=A0</font>modules have been re=
moved (see=C2=A0<a href=3D"https://peps.python.org/pep-0594/" target=3D"_bl=
ank">PEP 594</a>=C2=A0and=C2=A0<a href=3D"https://peps.python.org/pep-0632/=
" target=3D"_blank">PEP 632</a>). The=C2=A0<font face=3D"verdana, sans-seri=
f">setuptools=C2=A0</font>package (installed by default in virtualenvs and =
many other places) continues to provide the=C2=A0<font face=3D"verdana, san=
s-serif">distutils=C2=A0</font>module.</li><li style=3D"margin-left:15px">A=
 number of other old, broken and deprecated functions, classes and methods =
have been removed.</li><li style=3D"margin-left:15px"><font size=3D"1">(Hey=
,<b> fellow core developer</b>, if a feature you find important is missing =
from this list,=C2=A0<a href=3D"mailto:[email protected]" target=3D"_blank"=
>let Thomas know</a>.)</font></li></ul><br>For more details on the changes =
to Python 3.12, see=C2=A0<a href=3D"https://docs.python.org/dev/whatsnew/3.=
12.html" target=3D"_blank">What&#39;s new in Python 3.12</a>. The next pre-=
release of Python 3.12 will be 3.12.0a5, currently scheduled for 2023-02-06=
.<br><div><br><font size=3D"4">More resources<br></font><br><a href=3D"http=
s://docs.python.org/3.12/" target=3D"_blank">Online Documentation</a>.</div=
><div><a href=3D"https://www.python.org/dev/peps/pep-0693/" target=3D"_blan=
k">PEP 693</a>, the Python 3.12 Release Schedule.<br>Report bugs via=C2=A0<=
a href=3D"https://github.com/python/cpython/issues" target=3D"_blank">GitHu=
b Issues</a>.<br><a href=3D"https://www.python.org/psf/donations/" target=
=3D"_blank">Help fund Python and its community</a>.<br><br><font size=3D"4"=
>And now for something completely different</font></div><div><br></div><div=
>Two haikus apt, as Python&#39;s development springs ever forward.<br><br><=
blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-l=
eft:1px solid rgb(204,204,204);padding-left:1ex">I write, erase, rewrite<br=
>Erase again, and then<br>A poppy blooms.</blockquote><br>Haiku by Katsushi=
ka Hokusai.<br><br><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p=
x 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">O snai=
l<br>Climb Mount Fuji,<br>But slowly, slowly!</blockquote><br>Haiku by Koba=
yashi Issa.<br></div><font size=3D"4"><div><font size=3D"4"><br></font></di=
v>Enjoy the new releases<br></font><br>Thanks to all of the many volunteers=
 who help make Python Development and these releases possible! Please consi=
der supporting our efforts by volunteering yourself or through organization=
 contributions to the Python Software Foundation.<br><br>Regards from chill=
y Amsterdam,<br><br>Your release team,<br>Thomas Wouters<br>Ned Deily<br>St=
eve Dower<br></div>-- <br><div dir=3D"ltr" class=3D"gmail_signature" data-s=
martmail=3D"gmail_signature"><div dir=3D"ltr">Thomas Wouters &lt;<a href=3D=
"mailto:[email protected]" target=3D"_blank">[email protected]</a>&gt;<br><=
br></div></div></div>

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