…H-17366)

Extra newlines are removed at the end of non-shell files. If the file only has newlines after stripping other trailing whitespace, all are removed, as is done by patchcheck.py.
(cherry picked from commit 6bf644e)

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

… entries to prevent infinite recursion (GH-17397)

(cherry picked from commit 9bbcbc9)

Co-authored-by: Bruno P. Kinoshita <kinow@users.noreply.github.com>

…et_name__ (GH-17364)

(cherry picked from commit 1bddf89)

Co-authored-by: Florian Dahlitz <f2dahlitz@freenet.de>

SpooledTemporaryFile.rollback() might cause data corruption
when it is in text mode.

Co-Authored-By: Serhiy Storchaka <storchaka@gmail.com>
(cherry picked from commit ea9835c)

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

(cherry picked from commit 02519f7)

Co-authored-by: Tal Einat <taleinat+github@gmail.com>

…hook are invoked (GH-17392)

Also fixes some potential segfaults in unraisable hook handling.

(cherry picked from commit f25875a)

(cherry picked from commit 575d0b4)

Co-authored-by: Ofek Lev <ofekmeister@gmail.com>

(cherry picked from commit fdafa1d)

Co-authored-by: idomic <michael.ido@gmail.com>

* bpo-38449: Add tricky test cases

* bpo-38449: Reflect codereview
(cherry picked from commit 2fe4c48)

Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>

Make ssl tests less strict and also accept TLSv3 as the default maximum
version. This change unbreaks test_min_max_version on Fedora 32.

https://bugs.python.org/issue38815
(cherry picked from commit 34864d1)

Co-authored-by: torsava <torsava@redhat.com>

…put format (GH-17418)

(cherry picked from commit a62ad47)

Co-authored-by: Matthew Rollings <1211162+stealthcopter@users.noreply.github.com>

Update docstring for `multiprocessing.Pool.map` to mention `pool.starmap()`.

Prev PR: #17367  @aeros

https://bugs.python.org/issue27873
(cherry picked from commit eb48a45)

Co-authored-by: An Long <aisk@users.noreply.github.com>

(cherry picked from commit 808769f)

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

The readline module now detects if Python is linked to libedit at runtime
on all platforms.  Previously, the check was only done on macOS.

If Python is used as a library by a binary linking to libedit, the linker
resolves the rl_initialize symbol required by the readline module against
libedit instead of libreadline, which leads to a segfault.

Take advantage of the existing supporting code to have readline module being
compatible with both situations.
(cherry picked from commit 7105319)

Co-authored-by: serge-sans-paille <serge.guelton@telecom-bretagne.eu>

Use the "volatile" keyword to prevent tail call optimization
on any compiler, rather than relying on compiler specific pragma.
(cherry picked from commit 8b78796)

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

…H-17450)

Since c64a1a6 two assertions were indented and thus ignored when running test_hmac.

This PR fixes it. As the change is quite trivial I didn't add a NEWS entry.


https://bugs.python.org/issue38270
(cherry picked from commit 8943318)


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


https://bugs.python.org/issue38270



Automerge-Triggered-By: @tiran

…H-17277)

parse_message_id() was improperly using a token defined inside an exception
handler, which was raising `UnboundLocalError` on parsing an invalid value.

https://bugs.python.org/issue38698
(cherry picked from commit bb81549)

Co-authored-by: Claudiu Popa <pcmanticore@gmail.com>

GH-13135)

Break cycle generated when saving an exception in socket.py, codeop.py and dyld.py as they keep alive not only the exception but user objects through the ``__traceback__`` attribute.

https://bugs.python.org/issue36820

Automerge-Triggered-By: @pablogsal
(cherry picked from commit b64334c)

Co-authored-by: Mario Corchero <mcorcherojim@bloomberg.net>

…ges (GH-17480)

Note that the support is not actually enabled yet, and so we won't be publishing these packages. However, for those who want to build it themselves (even by reusing the Azure Pipelines definition), it's now relatively easy to enable.

On most platforms, the `environ` symbol is accessible everywhere.

In a dylib on OSX, it's not easily accessible, you need to find it with
_NSGetEnviron.

The code was caching the *value* of environ. But a setenv() can change the value,
leaving garbage at the old value. Fix: don't cache the value of environ, just
read it every time.
(cherry picked from commit 723f71a)

Co-authored-by: Benoit Hudson <benoit@imgspc.com>

(cherry picked from commit 7ddcd0c)

Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>

…Python version (GH-17484)

(cherry picked from commit 969ae7a)

Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>

…ncio functions (GH-16457) (#17496)

https://bugs.python.org/issue37404
(cherry picked from commit 892f9e0)

Co-authored-by: idomic <michael.ido@gmail.com>

test_openssl_version now accepts version 3.0.0.

getpeercert() no longer returns IPv6 addresses with a trailing new line.

Signed-off-by: Christian Heimes <christian@python.org>


https://bugs.python.org/issue38820
(cherry picked from commit 2b7de66)


Co-authored-by: Christian Heimes <christian@python.org>


https://bugs.python.org/issue38820



Automerge-Triggered-By: @tiran

now contextvars.ContextVar "__class_getitem__" method returns ContextVar class, not None.

https://bugs.python.org/issue38979

Automerge-Triggered-By: @asvetlov
(cherry picked from commit 28c9163)

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

…H-17503)

This adds a new InvalidMessageID token to the email header parser which can be
used to represent invalid message-id headers in the parse tree.
(cherry picked from commit 68157da)

Co-authored-by: Abhilash Raj <maxking@users.noreply.github.com>

…H-17504)

Fix a potential IndexError when passing an empty value to the message-id
parser. Instead, HeaderParseError should be raised.
(cherry picked from commit 3ae4ea1)

Co-authored-by: Abhilash Raj <maxking@users.noreply.github.com>

…espace (GH-17421)

https://bugs.python.org/issue38673
(cherry picked from commit 109fc27)

Co-authored-by: Batuhan Taşkaya <47358913+isidentical@users.noreply.github.com>

This means a clearer message is now shown when patch.object is called with two string arguments, rather than a class and a string argument.
(cherry picked from commit cd90a52)

Co-authored-by: Elena Oat <oat.elena@gmail.com>

Fix test_pty: if the process is the session leader, closing the
master file descriptor raises a SIGHUP signal: simply ignore SIGHUP
when running the tests.
(cherry picked from commit a1838ec)

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

array.array: Document that tostring() and fromstring() deprecated
aliases will be removed in Python 3.9.

Fix asyncio when the ssl module is missing: only check for
ssl.SSLSocket instance if the ssl module is available.
(cherry picked from commit 82b4950)

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

GH-17311) (#17529)

(cherry picked from commit ab513a3)

Co-authored-by: Kyle Stanley <aeros167@gmail.com>

…H-9518) (#17531)

(cherry picked from commit d219cc4)

Co-authored-by: Yury Selivanov <yury@magic.io>

(cherry picked from commit e89e159)

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

…H-17530)

* Issue 38992: avoid fsum test failure

* Add NEWS entry
(cherry picked from commit bba873e)

Co-authored-by: Mark Dickinson <mdickinson@enthought.com>

…se a deprecation warning (GH-17540)

(cherry picked from commit b8cbe74)

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

Also allows winreg.CloseKey() to accept same types as other functions.
(cherry picked from commit ee17e37)

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

(cherry picked from commit 232689b)

Co-authored-by: JohnnyNajera <58344607+JohnnyNajera@users.noreply.github.com>

This has happened on some versions of Ubuntu.
(cherry picked from commit bbc4162)

Co-authored-by: JohnnyNajera <58344607+JohnnyNajera@users.noreply.github.com>

…17538)

(cherry picked from commit c18b805)

Co-authored-by: Tim Gates <tim.gates@iress.com>

(cherry picked from commit abdeb57)

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

Python 3.8.1rc1

Automerge-Triggered-By: @pablogsal

(cherry picked from commit d0802d0)

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

…-17569)

* bpo-39022, bpo-38594: Sync with importlib_metadata 1.3 including improved docs for custom finders and better serialization support in EntryPoints.

* 📜🤖 Added by blurb_it.

* Correct module reference
(cherry picked from commit b7a0109)

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

… for if_stmt (GH-17582) (GH-17589)

When parsing an "elif" node, lineno and col_offset of the node now point to the "elif" keyword and not to its condition, making it consistent with the "if" node.

https://bugs.python.org/issue39031

Automerge-Triggered-By: @pablogsal
(cherry picked from commit 025a602)

Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>

(cherry picked from commit 8289e27)

Co-authored-by: Xtreak <tir.karthi@gmail.com>

Co-Authored-By: Victor Stinner <vstinner@python.org>
(cherry picked from commit 95826c7)

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

… (GH-17600)

(cherry picked from commit 5936a4c)

Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>

Automerge-Triggered-By: @gvanrossum
(cherry picked from commit b08d3f7)

Co-authored-by: Guido van Rossum <guido@python.org>

Commit 6b5b013 ("bpo-26978: Implement pathlib.Path.link_to (Using
os.link) (GH-12990)") introduced a new link_to method in pathlib. However,
this makes pathlib crash when the 'os' module is missing a 'link' method.

Fix this by checking for the presence of the 'link' method on pathlib
module import, and if it's not present, turn it into a runtime error like
those emitted when there is no lchmod() or symlink().

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
(cherry picked from commit 092435e)

Co-authored-by: Toke Høiland-Jørgensen <toke@redhat.com>

…nt()'s *reuse_address* parameter (GH-17595). (#17630)

(cherry picked from commit f501db2)

Co-authored-by: Kyle Stanley <aeros167@gmail.com>

Co-authored-by: tirkarthi
(cherry picked from commit 1988344)

Co-authored-by: Kyle Stanley <aeros167@gmail.com>

…acOS Catalina (GH-17636)

… CALL (GH-17645) (GH-17649)

… 
Co-Authored-By: Pablo Galindo <Pablogsal@gmail.com>
(cherry picked from commit 50d4f12)

Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>





https://bugs.python.org/issue39080

…GH-17647)

Multiprocessing and concurrent.futures tests now stop the resource
tracker process when tests complete.

Add ResourceTracker._stop() method to
multiprocessing.resource_tracker.

Add _cleanup_tests() helper function to multiprocessing.util: share
code between multiprocessing and concurrent.futures tests.

(cherry picked from commit 9707e8e)

…H-17652) (GH-17655)

Fix test_ressources_gced_in_workers() of test_concurrent_futures:
explicitly stop the manager to prevent leaking a child process
running in the background after the test completes.

(cherry picked from commit 673c393)

Python 3.8.1

(cherry picked from commit d587272)

Co-authored-by: Batuhan Taşkaya <47358913+isidentical@users.noreply.github.com>





https://bugs.python.org/issue38316



Automerge-Triggered-By: @vstinner

… docs table (GH-17408)

Adds` __module__ ` entries for function & method types in inspect docs table.

https://bugs.python.org/issue38918
(cherry picked from commit f522a6d)

Co-authored-by: Parth Sharma <parthsharma2@users.noreply.github.com>

"HH", "MM" and "ffffff" are enclosed with double back quotes, but "SS" is left being bare
(cherry picked from commit 068768f)

Co-authored-by: cocoatomo <cocoatomo77@gmail.com>

Fixes a nearly word for word duplication of a sentence that appears
earlier in the caution section of datetime.datetime.fromisoformat in
Doc/Library/datetime.rst.

No issue created as it's a trivial change.

Automerge-Triggered-By: @pganssle
(cherry picked from commit e7b406f)

Co-authored-by: Michael Morehouse <640167+yawpitch@users.noreply.github.com>

(cherry picked from commit b0d4949)

Co-authored-by: Jesús Cea <jcea@jcea.es>

Co-authored-by: Jesús Cea <jcea@jcea.es>

https://bugs.python.org/issue38878

(cherry picked from commit 025eeaa)

Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>

The added parentheses around the PyIter_Next assignment suppress the following warning which gcc throws without:
```
warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
```
The other change is a typo fix
(cherry picked from commit 5c7ed75)

Co-authored-by: William Ayd <william.ayd@icloud.com>

(cherry picked from commit 279d8df)

Co-authored-by: John Belmonte <john@neggie.net>

A character "i" is omitted.
(cherry picked from commit 527f9de)

Co-authored-by: cocoatomo <cocoatomo77@gmail.com>

…H-7917) (GH-17677)

(cherry picked from commit e28aff5)

Co-authored-by: Fabio Sangiovanni <4040184+sanjioh@users.noreply.github.com>

)

`time.clock()` was removed in Python 3.8, but it was still mentioned
in the documentation for when `time.get_clock_info()` is given the
argument `'clock'`. This commit removes that mention.
(cherry picked from commit 91874bb)

Co-authored-by: Michael Wayne Goodman <goodman.m.w@gmail.com>

…bute. (GH-17702)

(cherry picked from commit c0052f3)

Co-authored-by: Batuhan Taşkaya <47358913+isidentical@users.noreply.github.com>

…e Python stdlib files (GH-17721)

(cherry picked from commit ef7eaaf)

Co-authored-by: Anthony Shaw <anthony.p.shaw@gmail.com>

(cherry picked from commit 98f0f04)

Co-authored-by: Batuhan Taşkaya <47358913+isidentical@users.noreply.github.com>

funtion -> function; configuraton -> configuration; defintitions -> definitions;
focusses -> focuses; necesarily -> necessarily; follwing -> following;
Excape -> Escape,

(cherry picked from commit 6c7bb38)

(cherry picked from commit 32a12ae)

Co-authored-by: Antoine <43954001+awecx@users.noreply.github.com>

…ntation (GH-17608)

* __enter__ is now looked up before __exit__ to give a more intuitive error message
* add pseudo-code equivalent for the with statement
* fix pseudo-code for the async with statement to use a finally clause
* use SUITE rather than BLOCK for consistency with the language grammar

Patch by Géry Ogam.
(cherry picked from commit 226e6e7)

Co-authored-by: Géry Ogam <gery.ogam@gmail.com>

Hold strong references to list elements while calling PyObject_RichCompareBool().
(cherry picked from commit d9e561d)

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

Tag memoryview, range, and tuple as classes, the same as list, etcetera, in
the library manual built-in functions list.
(cherry picked from commit ee9ff05)

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

(cherry picked from commit d0c92e8)

Co-authored-by: Batuhan Taşkaya <47358913+isidentical@users.noreply.github.com>

GH-17764)

* [3.8] bpo-38588: Fix possible crashes in dict and list when calling PyObject_RichCompareBool (GH-17734)

Take strong references before calling PyObject_RichCompareBool to protect against the case
where the object dies during the call.
(cherry picked from commit 2d5bf56)

Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>

* Update Objects/listobject.c

@methane's suggestion

Co-Authored-By: Inada Naoki <songofacandy@gmail.com>

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

(cherry picked from commit ba82ee8)

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

…H-17778)

(cherry picked from commit 37143a8)

Co-authored-by: Ned Batchelder <ned@nedbatchelder.com>

Co-authored-by: Ned Batchelder <ned@nedbatchelder.com>

(cherry picked from commit 22424c0)

Co-authored-by: Anthony Sottile <asottile@umich.edu>

…H-17773) (GH-17785)

(cherry picked from commit 46abfc1)

Remove extra space to fix formatting and avoid from splitting text in to strings.

https://bugs.python.org/issue39183
(cherry picked from commit 149175c)

Co-authored-by: Rafael Fontenelle <rffontenelle@users.noreply.github.com>

(cherry picked from commit 946b29e)

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

(cherry picked from commit 32f1443)

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

(cherry picked from commit e02ab59)

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

(cherry picked from commit 3a5de51)

Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>

…y argument (GH-17826)

(cherry picked from commit ec007cb)

Co-authored-by: Anthony Sottile <asottile@umich.edu>

Ignore leading dots and no longer ignore a trailing newline.
(cherry picked from commit 6a265f0)

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

…H-17618)

No longer import the re module if it is not needed.
(cherry picked from commit 41ec17e)

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

…rue. (GH-17616)

(cherry picked from commit b19c0d7)

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

tkinter.ttk.Scale().configure([name]) now returns a configuration tuple for name
or a list thereof for all options. Based on patch Giovanni Lombardo.
(cherry picked from commit 5ea7bb2)

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

…7837)

(cherry picked from commit b121a4a)

Co-authored-by: Anthony Sottile <asottile@umich.edu>

Signed-off-by: Oleg Höfling <oleg.hoefling@gmail.com>
(cherry picked from commit e6ae90d)

Co-authored-by: Oleg Höfling <hoefling@users.noreply.github.com>

(cherry picked from commit abc0c4f)

Co-authored-by: HongWeipeng <961365124@qq.com>

…s well (GH-17694)

To be consistent with document layout, it should say when the feature was added.
Although it's mentioned few other places in the doc but it's not explicitly say that at that place.

https://bugs.python.org/issue39130
(cherry picked from commit 94d9cfc)

Co-authored-by: Khalid Mammadov <khalidmammadov9@gmail.com>

(cherry picked from commit d6c08db)

Co-authored-by: Tal Einat <taleinat+github@gmail.com>

…GH-17851) (#17854)

(cherry picked from commit ee94bdb)

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

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

…17864) (GH-17865)

Fixes error attempting to bind to IPv4 address.
(cherry picked from commit 7cdc31a)

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

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

…-17860)

(cherry picked from commit 5ec91f7)

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

(cherry picked from commit a76ba36)

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