…3546)

(cherry picked from commit 56b5daf)

Co-authored-by: Stanley <46876382+slateny@users.noreply.github.com>

…3066) (#93147)

Also while there, clarify a few things about why we reduce the hash to 32 bits.

Co-authored-by: Eli Libman <eli@hyro.ai>
Co-authored-by: Yury Selivanov <yury@edgedb.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>

(cherry picked from commit c1f5c90)

)

(cherry picked from commit 2cdd57f)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Co-authored-by: Martin Fischer <martin@push-f.com>

…1246) (GH-92967)

(cherry picked from commit fb082c2)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

… for Py>=3 (GH-92502) (GH-92964)

(cherry picked from commit 97b9c10)

…) (GH-92372)

(cherry picked from commit 85354ed)

Co-authored-by: Alexey Izbyshev <izbyshev@ispras.ru>

…defined (GH-17643) (GH-32256)

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>

…-91582) (GH-92748)

The `utc_to_seconds` call can fail, here's a minimal reproducer on
Linux:

TZ=UTC python -c "from datetime import *; datetime.fromtimestamp(253402300799 + 1)"

The old behavior still raised an error in a similar way, but only
because subsequent calculations happened to fail as well. Better to fail
fast.

This also refactors the tests to split out the `fromtimestamp` and
`utcfromtimestamp` tests, and to get us closer to the actual desired
limits of the functions. As part of this, we also changed the way we
detect platforms where the same limits don't necessarily apply (e.g.
Windows).

As part of refactoring the tests to hit this condition explicitly (even
though the user-facing behvior doesn't change in any way we plan to
guarantee), I noticed that there was a difference in the places that
`datetime.utcfromtimestamp` fails in the C and pure Python versions, which
was fixed by skipping the "probe for fold" logic for UTC specifically —
since UTC doesn't have any folds or gaps, we were never going to find a
fold value anyway. This should prevent some failures in the pure python
`utcfromtimestamp` method on timestamps close to 0001-01-01.

There are two separate news entries for this because one is a
potentially user-facing change, the other is an internal code
correctness change that, if anything, changes some error messages. The
two happen to be coupled because of the test refactoring, but they are
probably best thought of as independent changes.

Fixes GH-91581
(cherry picked from commit 83c0247)

Co-authored-by: Paul Ganssle <1377457+pganssle@users.noreply.github.com>

(cherry picked from commit 549567c)

Co-authored-by: slateny <46876382+slateny@users.noreply.github.com>

…dition.notify (GH-92534) (GH-92831)

If Condition.notify() was interrupted just after it released the waiter lock,
but before removing it from the queue, the following calls of notify() failed
with RuntimeError: cannot release un-acquired lock.
(cherry picked from commit 70af994)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

(cherry picked from commit 3ed1cae)

Co-authored-by: Stanley <46876382+slateny@users.noreply.github.com>

…n notices (GH-92612)

(cherry picked from commit 9f68dab)

Co-authored-by: CAM Gerlach <CAM.Gerlach@Gerlach.CAM>

It fixes 252 errors from a Sphinx nitpicky run (sphinx-build -n). But
there's 8182 errors left.

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
(cherry picked from commit 664aa94)

Co-authored-by: Julien Palard <julien@palard.fr>

…_future__ import annotations" (GH-92568). (#92726)

(cherry picked from commit 6582c96)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

…H-26307)

(cherry picked from commit b69297e)

Co-authored-by: 狂男风 <CrazyBoyFeng@Live.com>

…ML declaration (GH-91903) (GH-92665)

ElementTree method write() and function tostring() now use the text file's
encoding ("UTF-8" if not available) instead of locale encoding in XML
declaration when encoding="unicode" is specified.
(cherry picked from commit 707839b)


Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Automerge-Triggered-By: GH:serhiy-storchaka

…H-92631) (GH-92661)

(cherry picked from commit 38486ca)


Co-authored-by: Mikhail Terekhov <termim@gmail.com>

Automerge-Triggered-By: GH:serhiy-storchaka

…rsions & features (GH-92529) (GH-92610)

(cherry picked from commit f1bbcba)


Co-authored-by: CAM Gerlach <CAM.Gerlach@Gerlach.CAM>

Automerge-Triggered-By: GH:serhiy-storchaka

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
(cherry picked from commit 4bd07d1)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@protonmail.com>

(cherry picked from commit c56e2bb)

Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>

…GH-31858)

* [3.9] bpo-46785: Fix race condition between os.stat() and unlink on Windows (GH-31858).
(cherry picked from commit 39e6b8a)

Co-authored-by: Itai Steinherz <itaisteinherz@gmail.com>

See: https://mail.python.org/archives/list/docs@python.org/thread/KDVFGNGGUGGPVRZT7WZYHHWXCRS2GEN7/
(cherry picked from commit b77a95f)

Co-authored-by: Julien Palard <julien@palard.fr>

…ed Python versions (GH-92419)

(cherry picked from commit f4e317b)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

Signed-off-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
(cherry picked from commit 3edda03)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@protonmail.com>

…H-15732)

* Some handlers were wrongly described as text-encoding only, but actually they can also be used in text-decoding.
* Add more description to each handler.
* Add two REPL examples.
* Add indexes for Error Handler's name.

Co-authored-by: Kyle Stanley <aeros167@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
(cherry picked from commit 5bc2390)

Co-authored-by: Ma Lin <animalize@users.noreply.github.com>

see gotcha/ipdb#172

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
(cherry picked from commit 2888b11)

Co-authored-by: Godefroid Chapelle <gotcha@bubblenet.be>

)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
(cherry picked from commit 859250c)

Co-authored-by: slateny <46876382+slateny@users.noreply.github.com>

…method. (GH-91598) (GH-92497) (#92499)

Do not spawn ProcessPool workers on demand when they spawn via fork.

This avoids potential deadlocks in the child processes due to forking from
a multithreaded process..
(cherry picked from commit ebb37fc)

Co-authored-by: Gregory P. Smith <greg@krypto.org>
(cherry picked from commit b795376)

Co-authored-by: Gregory P. Smith <greg@krypto.org>

Co-authored-by: Gregory P. Smith <greg@krypto.org>

(cherry picked from commit 8883172)

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>

…<3.2 (GH-92425)

(cherry picked from commit 318c4e9)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

…n versions (GH-92422) (GH-92466)

(cherry picked from commit bc098cf)


Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

Automerge-Triggered-By: GH:serhiy-storchaka