[3.8] bpo-41503: Fix race between setTarget and flush in logging.handlers.MemoryHandler (GH-21765) (GH-21898)

(cherry picked from commit 2353d77fad7ed9d11d8a4d66b5dd1306cdb94125)

Co-authored-by: Irit Katriel <iritkatriel@yahoo.com>
Automerge-Triggered-By: @vsajip

bpo-31122: ssl.wrap_socket() now raises ssl.SSLEOFError rather than OSError when peer closes connection during TLS negotiation (GH-18772)

[bpo-31122](): ssl.wrap_socket() now raises ssl.SSLEOFError rather than OSError when peer closes connection during TLS negotiation

Reproducer: http://tiny.cc/f4ztnz (tiny url because some bot keeps renaming b.p.o.-nnn as bpo links)
(cherry picked from commit 495bd035662fda29639f9d52bb6baebea31d72fa)

Co-authored-by: Dima Tisnek <dimaqq@gmail.com>

Fix typo in typing doc (GH-21879)

Automerge-Triggered-By: @gvanrossum
(cherry picked from commit fa5d7251987c70a9c5d58b59a0b36ac9287eaafa)

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

bpo-41410: Fix outdated info in mkstemp docs (GH-21701)

Automerge-Triggered-By: @ericvsmith
(cherry picked from commit e55de68be3e5b977a17d3c0ac9805b0feff8fedc)

Co-authored-by: Rishav Kundu <rk@rishav.io>

Fixed comment about pathlib.link_to: it was added in 3.8, not changed. (GH-21851) (#21866)

(cherry picked from commit a3eae43aeedb6e6a31adeab3c0c90961d05ab113)

Co-authored-by: Facundo Batista <facundo@taniquetil.com.ar>

[3.8] bpo-41066: Update the comparison section for os vs pathlib (GH-21261) (GH-21864)

(cherry picked from commit 0eb9deb4a62e6d9daa82bc2f67d1075864ca8ece)

Co-authored-by: Srinivas Reddy Thatiparthy (శ్రీనివాస్ రెడ్డి తాటిపర్తి) <thatiparthysreenivas@gmail.com>
Automerge-Triggered-By: @pitrou

[3.9] bpo-41520: Fix second codeop regression (GH-21848)

Fix the repression introduced by the initial regression fix.

(cherry picked from commit c818b15fa59039de67022c29085d439fa5d3ef95)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit f24430f1542ea2768793b48704ae2d4e241892ae)

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

bpo-41520: codeop no longer ignores SyntaxWarning (GH-21838)

(cherry picked from commit 369a1cbdee14d9f27356fb3a8bb21e4fde289d25)

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

bpo-41475: Fix note in "What's new in 3.7" (GH-21733) (GH-21833)

(cherry picked from commit 76643c10ede2813ca921464fe839e81caee21a84)

Co-authored-by: Ram Rachum <ram@rachum.com>

[3.8] bpo-41504: Add links to asttokens, leoAst, LibCST and parso to ast docs (GH-21773) (GH-21829)

(cherry picked from commit e3c971ccfa58afcb2656b71b95e10b9703f2ad32)

Co-authored-by: Edward K. Ream <edreamleo@gmail.com>
https://bugs.python.org/issue41504

bpo-40548: Fix "Check for source changes (pull_request)" GH Action job (GH-21806)

On Git 2.28, "git diff master..." (3 dots) no longer works when
"fetch --depth=1" is used, whereas it works on Git 2.26.

Replace "..." (3 dots) with ".." (2 dots) in the "git diff" command
computing the list of modified files between the base branch and the
PR branch.
(cherry picked from commit eaa551702d80fd67219c48ee6a13ffb571ca360b)

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

bpo-41514: Fix buggy IDLE test (GH-21808)

test_run method test_fatal_error failed when run twice, as with
python -m test -m test_fatal_error test_idle test_idle
because func.called was not reinitialized to 0.
This bug caused a failure on a refleak buildbot.
(cherry picked from commit 416f0b71ba84fe83ee2ba4399b8a28712702980b)

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

bpo-41468: Improve and test IDLE run error exit  (GH-21798)

A message box pops up when an unexpected error stops the run process.  Tell users it is likely a random glitch, but report it if not.
(cherry picked from commit f2e161c27964a59bc5ab20d96f87ba5862c6222d)

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

[3.8] Doc: Add output to example code in programming FAQ (GH-21346) (GH-21791)

Add output hint to document, part faq/programming, section [How do I write a function with output parameters (call by reference)?](https://docs.python.org/3/faq/programming.htmlGH-how-do-i-write-a-function-with-output-parameters-call-by-reference).

This patch make the output hint just like prefix code block.
(cherry picked from commit 67acf74c4eaf64a860cc1bcda6efe6e9cb01f89b)

Co-authored-by: Jiajie Zhong <zhongjiajie955@hotmail.com>
Automerge-Triggered-By: @merwok

Improve renamed test_run.RecursionLimitTest (GH-21794)

PEP 8 style and new comments.
(cherry picked from commit 8b67bf907c51846853127176cbb2982d102a2c2d)

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

bpo-41455: Provide a link to how the third generation is collected in the GC docs (GH-21703)

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
(cherry picked from commit 82ca8fada15b121866530f2cdac1b7055be4a244)

Co-authored-by: Yaroslav Pankovych <31005942+P-Alban@users.noreply.github.com>

bpo-41497: Fix potential UnicodeDecodeError in dis CLI (GH-21757)

(cherry picked from commit a4084b9d1e40c1c9259372263d1fe8c8a562b093)

Co-authored-by: Konge <zkonge@outlook.com>

Doc: Add a link to tutorial page from `open()` doc (GH-21737)

Adds a link to the "Reading and Writing Files" page so users can
more easily discover how file handles are handled with the `with`
context manager vs without it.
(cherry picked from commit 705f14556545699ab615ec98f707b438f9603767)

Co-authored-by: Benjamin Kane <bbkane@users.noreply.github.com>

Update Azure Pipelines build to use Ubuntu 18.04 and move triggers into YAML files (GH-21776)

(cherry picked from commit 102b4988b1a10d5a61034381aea15521d17c210c)

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

bpo-41490: Update ensurepip to install pip 20.2.1 and setuptools 49.2.1 (GH-21775)

bpo-41473: Skip test_gdb with gdb 9.2 to work around gdb bug (GH-21768)

gdb 9.2 on Fedora Rawhide is not reliable, see:

* https://bugs.python.org/issue41473
* https://bugzilla.redhat.com/show_bug.cgi?id=1866884
(cherry picked from commit e27a51c11e10d5df79b3e48dc3e7bfedfad5a794)

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

bpo-41098: Doc: Add missing deprecated directives (GH-21162)

PyUnicodeEncodeError_Create has been deprecated with
`Py_DEPRECATED` macro. But it was not documented.
(cherry picked from commit 46e19b61d31ba99f049258efa4ff1334856a3643)

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

bpo-41492: Fixes the description appearing in UAC prompts on Windows (GH-21754)

(cherry picked from commit 777b611c8c5676b80898a429f71d28e59bddc49d)

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

bpo-41482: Fix error in ipaddress.IPv4Network docstring (GH-21736)

(cherry picked from commit 52f98424a55e14f05dfa7483cc0faf634a61c9ff)

Co-authored-by: Eric L. Frederich <eric.frederich@gmail.com>

[3.8] bpo-40726: handle uninitalized end_lineno on ast.increment_lineno (GH-21745)

…no (GH-20312).

(cherry picked from commit 8f4380d2f5839a321475104765221a7394a9d649)

Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com>
Automerge-Triggered-By: @pablogsal

bpo-36346: Doc: Update removal schedule of legacy Unicode (GH-21479)

See PEP 623 for detail.
(cherry picked from commit 270b4ad4df795783d417ba15080da8f95e598689)

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

bpo-38156: Fix compiler warning in PyOS_StdioReadline() (GH-21721)

incr cannot be larger than INT_MAX: downcast to int explicitly.
(cherry picked from commit bde48fd8110cc5f128d5db44810d17811e328a24)

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

bpo-41467: Fix asyncio recv_into() on Windows (GH-21720)

On Windows, fix asyncio recv_into() return value when the socket/pipe
is closed (BrokenPipeError): return 0 rather than an empty byte
string (b'').
(cherry picked from commit 602a971a2af3a685d625c912c400cadd452718b1)

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

bpo-41425: Make tkinter doc example runnable (GH-21706)

Co-authored-by: Ankit Chandawala <achandaw@amazon.com>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit c36dbac588e1d99975f285a874bb20e9f5040af4)

bpo-41424: Remove extra words in Tkinter-Packer documentation (GH-21707)

(cherry picked from commit ecaf949cc487887883c14dff7a96e09ac9404994)

Co-authored-by: Nathan M <nathanmaynes@gmail.com>

bpo-41426 Fix grammar in curses.getmouse() documentation (GH-21677)

Automerge-Triggered-By: @brettcannon
(cherry picked from commit ba18c0b13ba3c08077ea3db6658328523823a33f)

Co-authored-by: Sebastien Williams-Wynn <s.williamswynn.mail@gmail.com>

Remove incorrect mention of method.__class__ in descriptor docs (GH-21665) (GH-21668)

closes bpo-38156: Always handle interrupts in PyOS_StdioReadline. (GH-21569)

This consolidates the handling of my_fgets return values, so that interrupts are always handled, even if they come after EOF.

 I believe PyOS_StdioReadline is still buggy in that I/O errors will not result in a proper Python exception being set. However, that is a separate issue.
(cherry picked from commit a74eea238f5baba15797e2e8b570d153bc8690a7)

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

Fix `List_Append` description, list is extracted at TOS1[-i] (GH-21465)

(cherry picked from commit 34cd3e9f6a87f9c50edac893b0d5ae46c4e48ee3)

Co-authored-by: Xiang Zhang <angwerzx@126.com>

bpo-41328: Replace mention of Hudson CI with Travis CI and AppVeyor (GH-21653)

(cherry picked from commit 5e3826785dcc64f8e1a8a7bde11b88fbb40943be)

Co-authored-by: Dmytro Litvinov <litvinov.dmytro.it@gmail.com>

[3.8] bpo-41045: Document debug feature of f-strings ('=') (GH-21509) (#21647)

Co-Authored-By: Rishi <rishi93dev@gmail.com>
(cherry picked from commit 13efaec)

Co-authored-by: amaajemyfren <32741226+amaajemyfren@users.noreply.github.com>

bpo-41384: Raise TclError in tkinter.OptionMenu (GH-21601)

... when an unknown option is passed.  TypeError was being raised because a 2to3 fix was missing.

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit f1d40f941a6483b1d4ea10f1051ace7b426fb8e7)
Co-authored-by: Akuli <akuviljanen17@gmail.com>

bpo-41385: Fix test_executable_without_cwd on Windows (GH-21608)

(cherry picked from commit b1a87300a06324c9fc7d6553906ed914489465aa)

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

bpo-39868: Add documentation for Assignment Expressions (walrus, PEP 572) (GH-18851)

(cherry picked from commit f117cef25b5ffc4db9fbe373ddb65e14f59f0397)

Co-authored-by: Shankar Jha <shankarj67@gmail.com>

bpo-41314: fixed annotations __future__ version (GH-21616)

PEP 563 was updated to change the release where `from __future__ import annotations` becomes the default (and only) behavior from 4.0 to 3.10. Update `__future__.py` and its docs to reflect this.
(cherry picked from commit 0028c14073109595e7532ec00bb1e8bf39ecfb4d)

Co-authored-by: YoSTEALTH <35307184+YoSTEALTH@users.noreply.github.com>

bpo-38731: Fix NameError in command-line interface of py_compile (GH-21617)

(cherry picked from commit 2024d7aca100c3faa9c6730aba3de5f0528750be)

Co-authored-by: Berker Peksag <berker.peksag@gmail.com>

[3.8] bpo-37309: NEWS for #41373 (GH-21612)

Cherry-picked from  af08db7.

bpo-41373: IDLE: Fix saving files loaded with no newlines or mixed newlines (GH-21597)

Fixes regression in 3.8.4 and 3.9.0b4.

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit 0dd463c8a4269137ebed7cc29605c555030df94f)

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

 [3.8] bpo-4630: Fix errors in Lib/idlelib/NEWS.txt (GH-21594)

Also one in news log.

(cherry picked from commit 592527f3ee59616eca2bd1da771f7c14cee808d5)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>

bpo-41364: Reduce import overhead of uuid module (GH-21586)

bpo-40741: Update Windows build to include SQLite 3.32.3 (GH-21570)

(cherry picked from commit 84761c3cc4bac31d471e371c53a338686d4b0241)

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

Post 3.8.5

Python 3.8.5

Contains security fixes for CVE-2019-20907, CVE-2020-15801, and BPO-39603.

Simple Documentation fix: Missing link to return type class. (GH-21291)

Just a simple documentation fix: apply_async and map_async return a "multiprocessing.pool.AsyncResult Object", not a "result object".
(cherry picked from commit f9bf0157999cb4adbcfd7e9bf526bfa48601e128)

Co-authored-by: Volker-Weissmann <39418860+Volker-Weissmann@users.noreply.github.com>

bpo-37703: improve asyncio.gather documentation regarding cancellation (GH-15312)

These changes updates the doc to comprehensively mention the behaviour of gather.cancel()

Automerge-Triggered-By: @asvetlov
(cherry picked from commit d42528a3a2c7d79fd2e6c9f2a02f3ce12d44c8cc)

Co-authored-by: Vinay Sharma <vinay04sharma@icloud.com>

bpo-40741: Update macOS installer to use SQLite 3.32.3 (GH-20979)

(cherry picked from commit 7cf1cb36ecafabff363790d245f809d3894fbbaf)

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

bpo-41205: Document Decimal power 0 to the 0 (GH-21386)

Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
(cherry picked from commit 10e466448f67850ed7bb2e2a4e7f017f2b050cad)

Co-authored-by: Srinivas Reddy Thatiparthy (శ్రీనివాస్ రెడ్డి తాటిపర్తి) <thatiparthysreenivas@gmail.com>

bpo-32528: Document the change in inheritance of asyncio.CancelledError (GH-21474)

GH-msg373510

[bpo-32528]()/GH-13528 changed `asyncio.CancelledError` such that it no longer inherits from `concurrent.futures.CancelledError`. As this affects existing code, specifically when catching the latter instead of the former in exception handling, it should be documented in the "What's new in 3.8?" document.

Automerge-Triggered-By: @1st1
(cherry picked from commit 2a5181829af394b82e8e8c917183c709ee72a2b7)

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

bpo-41295: Reimplement the Carlo Verre "hackcheck" (GH-21528)

Walk down the MRO backwards to find the type that originally defined the final `tp_setattro`, then make sure we are not jumping over intermediate C-level bases with the Python-level call.

Automerge-Triggered-By: @gvanrossum
(cherry picked from commit c53b310e5926266ce267c44a168165cacd786d6e)

Co-authored-by: scoder <stefan_ml@behnel.de>

bpo-39603: Prevent header injection in http methods (GH-18485)

reject control chars in http method in http.client.putrequest to prevent http header injection
(cherry picked from commit 8ca8a2e8fb068863c1138f07e3098478ef8be12e)

Co-authored-by: AMIR <31338382+amiremohamadi@users.noreply.github.com>

bpo-41325: Add version note for args and kwargs property in call object (GH-21525)

(cherry picked from commit 9b01c598ca2576a1056816e85dd84bf5f9c74688)

Co-authored-by: Jordan Speicher <uSpike@users.noreply.github.com>

bpo-41304: Update NEWS to include CVE-2020-15801 reference (GH-21521)

(cherry picked from commit 164b04c47e61bd35d55e61bc74f9fd646eba81bb)

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

[3.8] bpo-41300: IDLE - save files with non-ascii chars  (GH-21512)

Fix regression released in 3.9.0b4 and 3.8.4.
(cherry picked from commit 38d3864efe914fda64553e2ec75c9ec15574483f)

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

Remove unnecessary spaces in code blocks in urllib.parse.rst (GH-21500)

This should also fix the syntax highlighting for these code blocks

Automerge-Triggered-By: @csabella
(cherry picked from commit 5e5c0f98667c9280c6d27b3db98a6cad2cc89077)

Co-authored-by: Christopher Yeh <chrisyeh96@users.noreply.github.com>

bpo-41304: Ensure python3x._pth is loaded on Windows (GH-21495)

(cherry picked from commit 936a66094591dc0e67d4a60c170148bb700ec016)

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

[3.8] bpo-41302: Support system libmpdec 2.5 for Python 3.8 (GH-21488)

Define UNUSED only when mpdecimal.h doesn't define it. This would support
building with system libmpdec 2.5 while retaining compatibility with system
libmpdec 2.4 or the vendored copy.

Tested to build fine with either system libmpdec or the vendored one.

bpo-40150: Fix mismatched argument in RegisterWaitForSingleObject() call (GH-19686)

(cherry picked from commit af4eda46d1538b1da700a86588bdb94b0a4d1ff2)

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

Fix -Wstrict-prototypes warning in thread_pthread.h. (GH-21477)

(cherry picked from commit ea62a4bd54421693ed6b24a1bbd18ebed3bdb8f8)

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

[3.8] bpo-39017: Avoid infinite loop in the tarfile module (GH-21454) (GH-21483)

Avoid infinite loop when reading specially crafted TAR files using the tarfile module
(CVE-2019-20907).
(cherry picked from commit 5a8d121a1f3ef5ad7c105ee378cc79a3eac0c7d4)

Co-authored-by: Rishi <rishi_devan@mail.com>
Automerge-Triggered-By: @encukou

Fix repeated words in Classes tutorial (GH-21455)

The phrase "At any time during execution," was repeated twice.

Automerge-Triggered-By: @Mariatta
(cherry picked from commit 4f28f75deefc6e8f65694f96f1a40b0a26fc385d)

Co-authored-by: Paul McMillan <paul@mcmillan.ws>

Post 3.8.4

Merge tag 'v3.8.4' into 3.8

Python 3.8.4

bpo-41288: Fix a crash in unpickling invalid NEWOBJ_EX. (GH-21458)

Automerge-Triggered-By: @tiran
(cherry picked from commit 4f309abf55f0e6f8950ac13d6ec83c22b8d47bf8)

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

Python 3.8.4

bpo-41228: Fix /a/are/ in monthcalendar() descripton (GH-21372)

(cherry picked from commit 344dce312a0cf86d5a5772d54843cc179acaf6e3)

Co-authored-by: Nima Dini <nima.dini@gmail.com>

Fix typo in docs: 'created by th' -> 'created by the' (GH-21384)

(cherry picked from commit 6fc732a2116e2c42b0431bb7e2a21719351af755)

Co-authored-by: marload <rladhkstn8@gmail.com>

bpo-41175: Guard against a NULL pointer dereference within bytearrayobject (GH-21240)

The issue is triggered by the bytearray() + bytearray() operation.

Detected by GCC 10 static analysis tool.
(cherry picked from commit 61fc23ca106bc82955b0e59d1ab42285b94899e2)

Co-authored-by: stratakis <cstratak@redhat.com>

bpo-37765: Add keywords to IDLE tab completions (GH-15138)

Keywords are present in the main module tab completion lists generated by rlcompleter, which is used by REPLs on *nix. Add all keywords to IDLE's main module name list except those already added from builtins (True, False, and None) . This list may also be used by Show Completions on the Edit menu, and its hot key.

Rewrite Completions doc.

Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
(cherry picked from commit bce2eb4646021910aa4074d86f44a09b32d0b2b2)

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

bpo-41247: asyncio.set_running_loop() cache running loop holder (#21406)

The running loop holder cache variable was always set to NULL when
calling set_running_loop.

Now set_running_loop saves the newly created running loop holder in the
cache variable for faster access in get_running_loop.

bpo-41199: Docstring convention not followed for dataclasses documentation page (GH-21413)

Automerge-Triggered-By: @ericvsmith
(cherry picked from commit 61bb24a270d15106decb1c7983bf4c2831671a75)

Co-authored-by: marload <rladhkstn8@gmail.com>

bpo-41252: Fix incorrect refcounting in _ssl.c's _servername_callback() (GH-21407)

(cherry picked from commit ee96f32ca24779656d3c8736d26671fc3689f0a3)

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

bpo-40597: Allow email.contextmanager set_content() to set a null string. (GH-20542)

(cherry picked from commit 4fa61a7732923f92de0f7830c12da48c4cec937f)

Co-authored-by: Mark Sapiro <mark@msapiro.net>

closes bpo-41235: Fix the error handling in SSLContext.load_dh_params() (GH-21385)

(cherry picked from commit aebc0495572c5bb85d2bd97d27cf93ab038b5a6a)

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

bpo-39417: Fix broken link to guide to building venvs (GH-18432)

(cherry picked from commit c4a65ed7fe342bd18b5a5b0eea3470dc4fc31160)

Co-authored-by: Ogi Moore <ognyan.moore@jacobs.ucsd.edu>

bpo-41218: Improve the test cases for test_compile_top_level_await_no_coro (GH-21363)

(cherry picked from commit c2c1f1f906cdeb40576880d4b6a4f8fcbc016eb8)

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

bpo-41218: Only mark async code with CO_COROUTINE. (GH-21357)

3.8.3 had a regression where compiling with
ast.PyCF_ALLOW_TOP_LEVEL_AWAIT woudl agressively mark things are
coroutine even if there were not.
(cherry picked from commit bd46174a5a09a54e5ae1077909f923f56a7cf710)

Co-authored-by: Matthias Bussonnier <bussonniermatthias@gmail.com>

bpo-29778: Ensure python3.dll is loaded from correct locations when Python is embedded (GH-21297) (GH-21352)

Also enables using debug build of `python3_d.dll`
Reference: CVE-2020-15523
(cherry picked from commit dcbaa1b49cd9062fb9ba2b9d49555ac6cd8c60b5)

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

bpo-28681: Clarify multiple function names in the tutorial (GH-21340) (GH-21344)

* improve control flow docs

* Add also

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit d12af71047f0eae86440654d3ea74c032c7c3558)

Co-authored-by: Joannah Nanjekye <33177550+nanjekyejoannah@users.noreply.github.com>
Co-authored-by: Joannah Nanjekye <33177550+nanjekyejoannah@users.noreply.github.com>

bpo-26205: Specify the number of nested scopes (GH-21324) (GH-21342)

* Clarify number of scopes

* Indicate 3 or 4

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit 9ed3cd8ba052b395ab50692bb65988b065d68e27)

Co-authored-by: Joannah Nanjekye <33177550+nanjekyejoannah@users.noreply.github.com>
Co-authored-by: Joannah Nanjekye <33177550+nanjekyejoannah@users.noreply.github.com>

bpo-39960: Allow heap types in the "Carlo Verre" hack check that override "tp_setattro()" (GH-21092) (GH-21339)

Backport to Py3.8.

bpo-41211: Doc: Fix PyLong_FromUnicode (GH-21331)

PyUnicode_EncodeDecimal is not used actually.
(cherry picked from commit 16f451744b7f4653ca9db4b4bedbb6fc5c0de154)

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

bpo-41211: Doc: Fix PyLong_FromUnicodeObject (GH-21325)

It doesn't use PyUnicode_EncodeDecimal. It uses a private API instead.
(cherry picked from commit 9c8441712230660fedac818ed50e7cdd89e4c51d)

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

bpo-33864: Clarify the docs for typing.ByteString (GH-21311)

(cherry picked from commit b40e434386cd94a367d4a256e3364771140160e7)

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

bpo-41162: Clear audit hooks later during finalization (GH-21222)

Co-authored-by: Konge <zkonge@outlook.com>

bpo-41180: Audit code.__new__ when unmarshalling (GH-21271)

(cherry picked from commit d160e0f8e283d0a8737644588b38e8c6a07c134f)

Co-authored-by: tkmikan <36260601+tkmikan@users.noreply.github.com>

bpo-41193: Ignore OSError in readline write_history() (GH-21279)

The write_history() atexit function of the readline completer now
ignores any OSError to ignore error if the filesystem is read-only,
instead of only ignoring FileNotFoundError and PermissionError.
(cherry picked from commit 0ab917e07ed64c6bfde6f6e791f9b28acc97b510)

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

[3.8] bpo-41043: Escape literal part of the path for glob(). (GH-20994). (GH-21277)

(cherry picked from commit 935586845815f5b4c7814794413f6a812d4bd45f)

3.8.3 -> 3.8.4 in macOS installer ReadMe (GH-21274)

bpo-41158: IDLE: rewrite the code for handling file encoding (GH-21215)

(cherry picked from commit 694d31e714074176f0c324f95948b75dc768c091)

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

Doc: Minor fix to init config C API documentation (GH-21198)

Co-authored-by: Tomer Vromen <tomer.vromen@intel.com>
(cherry picked from commit 741008a57bdc95090b8be6ded5a9fd3f17f7bf21)

Co-authored-by: tomerv <tomerv@gmail.com>

Post 3.8.4rc1

Merge tag 'v3.8.4rc1' into 3.8

Python 3.8.4rc1

Update FAQ release schedule and estimated users (GH-21180)

Update FAQ to include:
* The new yearly release schedule from PEP 602
* Estimated users from "tens of thousands" to "millions"
(cherry picked from commit 3fa4799c3f9d9de7cac30e5db3627e9e125b9ce5)

Co-authored-by: E-Paine <63801254+E-Paine@users.noreply.github.com>

bpo-41123: Remove PyUnicode_AsUnicodeCopy in 3.10 (GH-21227)

(cherry picked from commit 2ea6a9928e4fa135888cc8f4733c28d93e642301)

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

bpo-41152: IDLE: always use UTF-8 for standard IO streams (GH-21214)

(cherry picked from commit 2515a28230b1a011205f30263da6b01c6bd167a3)

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