bpo-27820: Fix AUTH LOGIN logic in smtplib.SMTP (GH-24118) (#24832)

* Fix auth_login logic (bpo-27820)

* Also fix a longstanding bug in the SimSMTPChannel.found_terminator() method that causes inability to test
SMTP AUTH with initial_response_ok=False.
(cherry picked from commit 7591d9455eb37525c832da3d65e1a7b3e6dbf613)

Co-authored-by: Pandu E POLUAN <pepoluan@gmail.com>

[3.9] bpo-43353: Document that logging.getLevelName() accepts string representation of logging level. (GH-24693) (GH-24826)

(cherry picked from commit bbba28212ce0f58096a4043f32442c6e727b74fc)

Automerge-Triggered-By: GH:vsajip

bpo-43423 Fix IndexError in subprocess _communicate function (GH-24777)

Check to make sure stdout and stderr are not empty before selecting an item from them in Windows subprocess._communicate.

Co-authored-by: Gregory P. Smith <greg@krypto.org>
(cherry picked from commit b4fc44bb2d209182390b4f9fdf074a46b0165a2f)

Co-authored-by: Chris Griffith <chris@cdgriffith.com>

bpo-43406: Fix test_signal.test_stress_modifying_handlers() (GH-24815) (GH-24817)

Fix a race condition of test_stress_modifying_handlers() of
test_signal: only raise signals while we are in the
catch_unraisable_exception() context manager.
Moreover, don't check if we received at least one
signal if at least one signal got ignored.
(cherry picked from commit 1fa17e8cc62775a2e34b158135ce8589f9394f03)

Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Victor Stinner <vstinner@python.org>

[3.9] bpo-43439: Add audit hooks for gc functions (GH-24794). (GH-24811)

(cherry picked from commit b4f9089d4aa787c5b74134c98e5f0f11d9e63095)

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>

bpo-43446: Fix markup in sqlite3 footnote (GH-24806)

(cherry picked from commit 62a03cd490f81c0fb01eaceb31aa8a4c7800ed0e)

Co-authored-by: Kamil Turek <kamil.turek@hotmail.com>

bpo-3329: Fix typo in PyObjectArenaAllocator doc (GH-24795)

(cherry picked from commit 0d6bd1ca7c683137d52041194f3a2b02219f225a)

Co-authored-by: Victor Stinner <vstinner@python.org>

bpo-43415: Fix typo on dataclasses.rst (GH-24789) (GH-24790)

(cherry picked from commit 0554044ddccdb7bf1fa4a8bc880e7a7b59f6479c)

Co-authored-by: Guilherme Martins Crocetti <gmcrocetti@gmail.com>
Co-authored-by: Guilherme Martins Crocetti <gmcrocetti@gmail.com>

bpo-43332: Buffer proxy connection setup packets before sending. (GH-24780)

We now buffer the CONNECT request + tunnel HTTP headers into a single
send call.  This prevents the OS from generating multiple network
packets for connection setup when not necessary, improving efficiency.
(cherry picked from commit c25910a135c2245accadb324b40dd6453015e056)

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

Put contextvars docs into the concurrency category (GH-24760)

(cherry picked from commit 5eb7796b7f3aae91b145ccea51b528662f3b5ce1)

Co-authored-by: Brett Cannon <brett@python.org>

[3.9] bpo-43406: Fix possible race condition where ``PyErr_CheckSignals`` tries to execute a non-Python signal handler (GH-24756) (GH-24761)

We can receive signals (at the C level, in `trip_signal()` in signalmodule.c) while `signal.signal` is being called to modify the corresponding handler.  Later when `PyErr_CheckSignals()` is called to handle the given signal, the handler may be a non-callable object and would raise a cryptic asynchronous exception.
(cherry picked from commit 68245b7a1030287294c65c298975ab9026543fd2)

Co-authored-by: Antoine Pitrou <antoine@python.org>

bpo-43407: Clarify comparisons of time.monotonic() et al results (GH-24757)

Previous wording implied that only the result of call N and N+1 could be
meaningfully compared, whereas comparing call N and N+M is fine.
(cherry picked from commit ff5f05934db241dfafc604989b2de3487b09ca82)

Co-authored-by: Alex Willmer <alex@moreati.org.uk>

bpo-43400: Remove "easy to use" from mock docs (GH-24752) (GH-24758)

bpo-43396: Normalise naming in sqlite3 doc examples (GH-24746)

(cherry picked from commit 40d1b831ecd1b5b6a4fce9a908a6e61b50b360a0)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>

[3.9] bpo-37193: Remove thread objects which finished process its request (GH-23127) (GH-24750)

This reverts commit aca67da4fe68d5420401ac1782203d302875eb27.
(cherry picked from commit b5711c940f70af89f2b4cf081a3fcd83924f3ae7)

Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
Automerge-Triggered-By: GH:jaraco

Add an attribution to the Green Tree Snakes in the AST docs (GH-24727)

(cherry picked from commit 62e3b6370cf9aa990485d9c7c3ea3f6f150daa47)

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>

[3.9] bpo-42782: Fail fast for permission errors in shutil.move() (GH-24001) (#24725)

* Fail fast in shutil.move() to avoid creating destination directories on failure.

Co-authored-by: Zackery Spytz <zspytz@gmail.com>
(cherry picked from commit 132131b404e06ee1a19b040a1f96cd1118abed0c)

Co-authored-by: Winson Luk <winson.luk@gmail.com>
Co-authored-by: Winson Luk <winson.luk@gmail.com>

Pin test runner to Ubuntu 18 to un-break CI (GH-24715)

(cherry picked from commit 94894dd45e4bad6efb27eac4497b24cdc18b3e2d)

Co-authored-by: Brandt Bucher <brandt@python.org>

bpo-42500: Fix recursion in or after except (GH-23568) (#24501)

* Use counter, rather boolean state when handling soft overflows.

(cherry picked from commit 4e7a69bdb63a104587759d7784124492dcdd496e)

Doc: Improve library/json document. (GH-24390)

(cherry picked from commit a347bc0b35c982e9600838d5a545e244bb76a4bf)

Co-authored-by: Adorilson Bezerra <adorilson@gmail.com>

Fixed linenumber missing when audit hook has an error (GH-24692)

See https://github.com/sphinx-doc/sphinx/issues/8932

Co-authored-by: tk0miya <i.tkomiya@gmail.com>
(cherry picked from commit dbfabcc0c306742e34b9b0e162c63ccebe9d2b05)

Co-authored-by: Jules Lasne <jules.lasne@gmail.com>

Fix grammar in enum documentation. (GH-24689)

There is an extra `s` in the singular word `method`.
Reported in docs mailing list by Steven Nguyen.

Automerge-Triggered-By: GH:Mariatta
(cherry picked from commit f193874056fb185305084b79b32d2745ce9be7cf)

Co-authored-by: Mariatta Wijaya <Mariatta@users.noreply.github.com>

bpo-41837: Update macOS installer build to use OpenSSL 1.1.1j. (GH-24677)

(cherry picked from commit 0242494a156970186cbc4121ccf03aefbddea716)

Co-authored-by: Ned Deily <nad@python.org>

bpo-43335: Update macro to check gcc version (GH-24662)

(cherry picked from commit bf9de7ab24d9d7068645b202bc47146b9a4f2726)

Co-authored-by: Dong-hee Na <donghee.na@python.org>

bpo-43144: Mark unicodedata's test_normalization as requiring network (GH-24650)

Co-authored-by: Arkadiusz Miśkiewicz <arekm@maven.pl>
(cherry picked from commit c6ccdfb479cb0a4a491575ef0bafaa0d29daae1a)

Co-authored-by: Ammar Askar <ammar@ammaraskar.com>

bpo-43316: gzip: Fix sys.exit() usage. (GH-24652)

(cherry picked from commit 9525a18b5bb317d9fb206c992ab62aa41559b0c8)

Co-authored-by: Inada Naoki <songofacandy@gmail.com>

bpo-43316:  gzip: CLI uses non-zero return code on error. (GH-24647)

Exit code is now 1 instead of 0. A message is printed to stderr instead of stdout. This is
the proper behaviour for a tool that can be used in scripts.
(cherry picked from commit cc3df6368d4f3f6c9c9b716876c7e7b79c7abf3f)

Co-authored-by: Ruben Vorderman <r.h.p.vorderman@lumc.nl>

bpo-43293: Doc: move note about GIL to top of threading module (GH-24622)

The note about the GIL was buried pretty deep in the threading documentation,
and this made it hard for first time users to discover why their attempts
at using threading to parallelizing their application did not work.

In this commit, the note is moved to the top of the module documention for
visibility.
(cherry picked from commit 32181be6081f6c70a1e0bd0540050805c8e88e83)

Co-authored-by: Guanzhong Chen <quantum2048@gmail.com>

[3.9] bpo-41841: revise header (GH-24634)

bpo-43283: Add IDLE doc paragraph about print speed (GH-24615)

Printing to IDLE's Shell is often slower than printing to a system
terminal, but it can be made faster by pre-formatting a single
string before printing.
(cherry picked from commit 2827e8a177c2a6584fada594bca6829c53a2872f)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

bpo-36346: Document removal schedule of deprecate APIs (GH-20879)

We will remove wstr cache in Python 3.12. See PEP 623.
(cherry picked from commit 2d6f2eed14ff5d89155b52771cc8ef957e8145b4)

Co-authored-by: Inada Naoki <songofacandy@gmail.com>

bpo-23882: Doc: Clarify unittest discovery document (GH-21560)

Unittest discovery support namespace package as start
directory. But it doesn't find namespace package in
the start directory automatically.

Otherwise, unittest discovery search into unexpected
directories like `vendor/` or `node_modules/`.
(cherry picked from commit 5a4aa4c03e27ca5007b86c9c1ee62c77ad08a120)

Co-authored-by: Inada Naoki <songofacandy@gmail.com>

bpo-43260: io: Prevent large data remains in textio buffer. (GH-24592)

When very large data remains in TextIOWrapper, flush() may fail forever.

So prevent that data larger than chunk_size is remained in TextIOWrapper internal
buffer.

Co-Authored-By: Eryk Sun
(cherry picked from commit 01806d5)

[3.9] bpo-43288: Fix bug in test_importlib test. (GH-24616)

* bpo-43288: Fix bug in test_importlib test. (GH-24612)
* Fix failed merge of bpo-43288. (GH-24614)

bpo-43283: Rearrange some IDLE doc paragraphs. (GH-24604)

In the Running User Code section, gather together paragraphs about two
processes and the sys.stdstream replacements, preparing to add another.
(cherry picked from commit 4cf7bb8e22bf37e6d65bf4cb5618d09c4a8ad612)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

bpo-27646: Say that 'yield from' expression can be any iterable (GH-24595)

Previously, the doc at least strongly implied that it had to be an iterator.
(cherry picked from commit 2f9ef514fb24b6a95bd3272885f197752810c107)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

Fix typo in dis module doc (GH-24509)

(cherry picked from commit 292f23186c6573bc1c3fa4f6e91116e8ee444cf4)

Co-authored-by: Irit Katriel <iritkatriel@yahoo.com>

[3.9] bpo-43272: Fix old parser test failures for backported grammar constructs (GH-24591)

bpo-43042: Augment tutorial sentence (GH-24514)

Calling same function also gets new local namespace.
(cherry picked from commit b30fcba3a8abaabd1087f2392ae8aec4c1b1f210)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

closes bpo-43266: Improve array formatting. (GH-24573)

(cherry picked from commit 2d3e463e4a5aa109d1c15c86f9631580f5ef7a7e)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>

Post 3.9.2

Python 3.9.2

closes bpo-43254: Fix *snprintf() man page refs. (GH-24563)

(cherry picked from commit e92d67dfbb4790df37aa6a0961fb6dc7e8d2fbbf)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>

Remove all links to mingw.org (GH-24552)

This lease on this domain has lapsed. This not only makes these dead links, but a potential attack vector for readers of python.org as the domain can be obtained by an untrustworthy party.

I considered redirecting these links to http://mingw-w64.org/ which is a maintained fork of mingw, but beyond my unfamiliarity with the exact level of compatibility, at the time of this PR that site had an expired cert and so is not much of a vulnerability fix.

Automerge-Triggered-By: GH:Mariatta
(cherry picked from commit 743932d50815edbe4ffd530ae091c53ae47dd34b)

Co-authored-by: Jeremy Paige <ucodery@gmail.com>

bpo-43155: Add PyCMethod_New to PC/python3.def (GH-24500) (GH-24554)

(cherry picked from commit 8a8b5df93f379f561aab4f2fc5b2ad54f5009f7a)

Post 3.9.2rc1

Python 3.9.2rc1

bpo-42819, readline: Disable bracketed paste (GH-24108) (GH-24545)

(cherry picked from commit 755f3c1521b422bc2177013d289f5439975fdc4f)

Co-authored-by: Dustin Rodrigues <dust.rod@gmail.com>
Co-authored-by: Dustin Rodrigues <dust.rod@gmail.com>

[3.9] Minor improvements to the convolve() recipe (GH-24520)

[3.9] bpo-42967: only use '&' as a query string separator (GH-24297) (#24528)

(cherry picked from commit fcbe0cb04d35189401c0c880ebfb4311e952d776)

* [3.9] bpo-42967: only use '&' as a query string separator (GH-24297)

bpo-42967: [security] Address a web cache-poisoning issue reported in urllib.parse.parse_qsl().

urllib.parse will only us "&" as query string separator by default instead of both ";" and "&" as allowed in earlier versions. An optional argument seperator with default value "&" is added to specify the separator.

Co-authored-by: Éric Araujo <merwok@netwok.org>
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Adam Goldschmidt <adamgold7@gmail.com>

bpo-43200: Fix link to shutil.copy() in the shutil doc (GH-24505)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit 762fe7deed34a1d5294bf82071d318c8427b4893)

bpo-43204: Fix LibTomCrypt URL in md5module.c and sha*module.c comments (GH-24507)

Automerge-Triggered-By: GH:tiran
(cherry picked from commit 5ec7d535581bc99918e032891167a96abd224ed6)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>

bpo-43174: Windows: Use /utf-8 compiler option. (GH-24498)

(cherry picked from commit fedd86df2448370cdf62a229fd6f31dc92daf379)

Co-authored-by: Inada Naoki <songofacandy@gmail.com>

bpo-41824: Add versionadded for typing.ForwardRef docs (#24224) (#24493)

bpo-16781: In 'exec' doc, add 'nonlocal' to 'yield' and 'return' (GH-2446)

These 3 statements cannot be used at module scope -- nor in exec with one namespace.
(cherry picked from commit 0ec57e25c918b859b9f8d464e34e0ac859c2f8b3)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

Simple typo fix (GH-24448)

(cherry picked from commit 5f18c223391eef8c7d01241b51a7b2429609dd84)

Co-authored-by: Andrew Tennikoff <atenni@users.noreply.github.com>

bpo-43132: Fix incorrect handling of PyObject_RichCompareBool() in _zoneinfo (GH-24450) (GH-24457)

PyObject_RichCompareBool() returns -1 on error, but this case is
not handled by the find_in_strong_cache() function.  Any exception
raised by PyObject_RichCompareBool() should be propagated.
(cherry picked from commit effaec0bb54f381db8ccfa62514bc26b00946b40)

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

bpo-35295: Remove outdated comment. (GH-24453)

(cherry picked from commit d938816acf71a74f1bd13fdf0534b3d9ea962e44)

Co-authored-by: Inada Naoki <songofacandy@gmail.com>

bpo-43102:  Set namedtuple __new__'s internal builtins to a dict. (GH-24439) (GH-24452)

build(deps): bump actions/upload-artifact from v2.2.1 to v2.2.2 (GH-24411)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from v2.2.1 to v2.2.2.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v2.2.1...e448a9b857ee2131e752b06002bf0e093c65e571)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit aa4caf9887944ab280a87712460e2dd49b55fe5e)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

bpo-42773: fix tests not being run on pushes (GH-24004)

There was a typo, we were checking if the "GITHUB_BASE_REF" string
literal was empty instead of the $GITHUB_BASE_REF value. When
$GITHUB_BASE_REF is empty, the action that triggered the run was not a
pull request, so we always run the full test suite.

Signed-off-by: Filipe Laíns <lains@riseup.net>
(cherry picked from commit 4ac923f2756f835f512339ee181348cc535ab07f)

Co-authored-by: Filipe Laíns <lains@riseup.net>

Fix typo (GH-23019)

Fixed possible typo in comment
(cherry picked from commit bfe544d2f2c2e7a7c03a764bed3276a1e27a0f5c)

Co-authored-by: Harry <harry.lees@gmail.com>

bpo-43108: Fix a reference leak in the curses module (GH-24420)

(cherry picked from commit bb739ec922c6992a2be38f9fd3c544c2cc322dde)

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>

bpo-43082: Remove redundant 'the' in Descriptor howto (GH-24394) (GH-24427)

Add link to Microsoft docs for limitations in Windows Store package (GH-24422)

(cherry picked from commit 1ba08a121a25fcf7c947d8d37e72e46dae59168c)

Co-authored-by: Steve Dower <steve.dower@python.org>

bpo-41748: Handles unquoted attributes with commas (GH-24072)

* bpo-41748: Adds tests for unquoted attributes with comma

* bpo-41748: Handles unquoted attributes with comma

* bpo-41748: Addresses review comments

* bpo-41748: Addresses review comments

* Adds more test cases
* Simplifies the regex for handling spaces

* bpo-41748: Moves attributes tests under the right class

* bpo-41748: Addresses review about duplicate attributes

* bpo-41748: Adds NEWS.d entry for this patch
(cherry picked from commit 9eb11a139fac5514d8456626806a68b3e3b7eafb)

Co-authored-by: Karl Dubost <karl+github@la-grange.net>

bpo-43016: Fix test_curses on platform without cursesw (GH-24405) (GH-24407)

(cherry picked from commit a1e9a1e120a11c563e166c15721169184c802f8b)

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

bpo-42688: Fix ffi alloc/free when using external libffi on macos (GH-23868) (GH-23888)

Automerge-Triggered-By: GH:ronaldoussoren
(cherry picked from commit b3c77ecbbe0ad3e3cc6dbd885792203e9e6ec858)

Co-authored-by: erykoff <erykoff@stanford.edu>

bpo-42504: Ensure that get_config_var('MACOSX_DEPLOYMENT_TARGET') is a string (GH-24341) (GH-24410)

* bpo-42504: Ensure that get_config_var('MACOSX_DEPLOYMENT_TARGET') is a string
(cherry picked from commit 49926cf2bcc8b44d9b8f148d81979ada191dd9d5)

Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>

[3.9] bpo-41604: Don't decrement the reference count of the previous user_ptr when set_panel_usertpr fails (GH-21933). (GH-24403)

(cherry picked from commit 3243e8a4b4b4cf321f9b28335d565742a34b1976)

Co-authored-by: Anonymous Maarten <madebr@users.noreply.github.com>

[3.9] bpo-43016: Rewrite tests for curses (GH-24312). (GH-24399)

(cherry picked from commit d64fd4bb5bb4fd2e3277f39d3ad99b5a8d193e1b)

bpo-43083: Fix error handling in _sqlite3 (GH-24395)

(cherry picked from commit 9073180db521dc83e6216ff0da1479d00167f643)

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

bpo-43030: Fixed a compiler warning in Py_UNICODE_ISSPACE with signed wchar_t (GH-24350)

(cherry picked from commit 42b1806af90b86ec393ca7da14e99ce95ec6c53b)

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

bpo-43059: Remove reference to legacy external sqlite3 repository (GH-24364)

(cherry picked from commit e60344364245a23a7a1b25d5ebce6833652a656c)

Co-authored-by: L <3177243+LukeLR@users.noreply.github.com>

[doc] Document VIRTUAL_ENV environment variable (GH-21970)

(cherry picked from commit 3584d4b64a5373440f78237eac734831cfd83f79)

Co-authored-by: Andre Delfino <adelfino@gmail.com>

Fixing typos in turtle.rst (GH-24376)

Automerge-Triggered-By: GH:JulienPalard
(cherry picked from commit 6baaae589d596ed3bb668448f2a22c5f62fc5fdf)

Co-authored-by: Jules Lasne <jules.lasne@gmail.com>

Fixed typo in turtle.rst (GH-24371)

Found it while translating it to french 🤷

Automerge-Triggered-By: GH:JulienPalard
(cherry picked from commit 6372a4ceba126aa0a9f00eee0f8023308f13e77b)

Co-authored-by: Jules Lasne <jules.lasne@gmail.com>

bpo-43008: Add 'Patch by Ken Hilton' (GH-24370) (#24374)

(cherry picked from commit 11d75ec807f05eff1148c049e38b808d11c23b8a)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

bpo-23544: Disable IDLE Stack Viewer when running user code (GH-17163)

Starting stack viewer when user code is running, including when Debugger is active, hangs or crashes IDLE.

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit 23a567c11ca36eedde0e119443c85cc16075deaf)

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

bpo-29076: Add fish support to macOS installer (GH-23302) (GH-23937)

(cherry picked from commit 7f162e867c674f57c308a87fffcdcca3540c8933)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>

bpo-42979: _zoneinfo exec function checks for PyDateTime_IMPORT failure (GH-24333) (GH-24351)

Importing datetime can fail.
(cherry picked from commit eeb701adc0fc29ba803fddf133d917ff45639a00)

Co-authored-by: Hai Shi <shihai1992@gmail.com>
Co-authored-by: Hai Shi <shihai1992@gmail.com>

bpo-43033: Fix the handling of PyObject_SetAttrString() in _zoneinfo.c (GH-24345) (GH-24349)

(cherry picked from commit 5327f370344a627f1578d8183d197feb286371c6)

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

bpo-43008: Make IDLE respect sys.excepthook (GH-24302)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit 7a34380ad788886f5ad50d4175ceb2d5715b8cff)

Co-authored-by: Ken <kenny2minecraft@gmail.com>

[3.9] bpo-41841: Prepare IDLE NEWS for 3.9.2 (#GH-4343)

[3.9] bpo-42383: pdb: do not fail to restart the target if the current directory changed (GH-23412) (#24322)

[3.9] bpo-42384: pdb: correctly populate sys.path[0] (GH-23338) (#24321)

bpo-43013: Fix old tkinter module names in idlelib (GH-24326)

Lowercase 'tkColorChooser', 'tkFileDialog', 'tkSimpleDialog', and
'tkMessageBox' and remove 'tk'.  Just lowercase 'tkFont' as 'font'
is already used.  Adjust import.
(cherry picked from commit 879986d8a932c4524cb6ff822afc9537de16e28d)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

[3.9] bpo-33289: Return RGB triplet of ints instead of floats from tkinter.colorchooser (GH-6578). (GH-24318)

(cherry picked from commit 6713e869c4989c04318158b406c30a147ea52904)

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

bpo-43013: Update idlelib code to 3.x  (GH-24315)

Remove 9 remaining '(object)' occurrences in class headers in idlelib
and 25 '()' occurrences in idlelib.idle_test class headers.
(cherry picked from commit 8dfe15625e6ea4357a13fec7989a0e6ba2bf1359)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

closes bpo-43011: Fix DeprecationWarnings in test_ctypes (GH-24305)

(cherry picked from commit f7fa64f0e87edc61d990ed51b4da722906a10928)

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

bpo-40304: Correct type(name, bases, dict) doc (GH-19553)

Co-authored-by: Éric Araujo <merwok@netwok.org>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Tal Einat <532281+taleinat@users.noreply.github.com>
(cherry picked from commit 644d52818a6391535e5838fd57d58ffcb1163056)

Co-authored-by: Борис Верховский <boris.verk@gmail.com>

bpo-42780: Fix set_inheritable() for O_PATH file descriptors on Linux (GH-24172) (GH-24278)

(cherry picked from commit 7dc71c425cf6aa6a4070a418dce5d95ca435c79f)

bpo-42005: profile and cProfile catch BrokenPipeError (GH-22643)

(cherry picked from commit 3554fa4abecfb77ac5fcaa5ce8310eeca5683960)

Co-authored-by: Zhiming Wang <i@zhimingwang.org>

bpo-41995: Handle allocation failure in _tracemalloc and _zoneinfo (GH-22635)

(cherry picked from commit f1ff800db1f9fa5ff8f2fa2863796a46bfa9ee46)

Co-authored-by: Yunlongs <lylgood@foxmail.com>

closes bpo-42938: Replace snprintf with Python unicode formatting in ctypes param reprs. (GH-24247)

(cherry picked from commit 916610ef90a0d0761f08747f7b0905541f0977c7)

Co-authored-by: Benjamin Peterson <benjamin@python.org>
Co-authored-by: Benjamin Peterson <benjamin@python.org>

bpo-42944 Fix Random.sample when counts is not None (GH-24235) (GH-24243)

[3.9] bpo-42163, bpo-42189, bpo-42659: Support uname_tuple._replace (for all but processor) (GH-23010) (#24232)

* Add test capturing missed expectation with uname_result._replace.

* bpo-42163: Override uname_result._make to allow uname_result._replace to work (for everything but 'processor'.

* Replace hard-coded length with one derived from the definition.

* Add test capturing missed expectation with copy/deepcopy on namedtuple (bpo-42189).

* bpo-42189: Exclude processor parameter when constructing uname_result.

* In _make, rely on __new__ to strip processor.

* Add blurb.

* iter is not necessary here.

* Rely on num_fields in __new__

* Add test for slices on uname

* Add test for copy and pickle.

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

* Fix equality test after pickling.

* Simply rely on __reduce__ for pickling.

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
(cherry picked from commit a6fd0f414c0cb4cd5cc20eb2df3340b31c6f7743)

Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>

bpo-42931: randbytes missing from random.__all__ (GH-24219) (GH-24225)

Docs: Remove stray semicolon in init.rst (GH-23974)

Removed stray semicolon which was causing the docs to render weirdly (it's the function right under the one [here](https://docs.python.org/3/c-api/init.htmlGH-c._PyInterpreterState_GetEvalFrameFunc)).
(cherry picked from commit 971235827754eee6c0d9f7d39b52fecdfd4cb7b4)

Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>

bpo-33065: Fix problem debugging user classes with __repr__ method (GH-24183)

If __repr__ uses instance attributes, as normal, and one steps
through the __init__ method, debugger may try to get repr before
the instance attributes exist.  reprlib.repr handles the error.
(cherry picked from commit 81f87bbf9f65702062021a78abd9b8f82c98a414)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>