(cherry picked from commit 8e3a738)

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

…ythonGH-14870)

Repeat the command line arguments most recently entered before so the user can edit them.
(cherry picked from commit 35b87e6)

Co-authored-by: Ngalim Siregar <ngalim.siregar@gmail.com>

(cherry picked from commit 4214f1e)

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

(cherry picked from commit b530a44)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>

…14872). (python#14900)

(cherry picked from commit 96e12d5)

Co-authored-by: Min ho Kim <minho42@gmail.com>

…s child with attach_mock (GH 14688) (pythonGH-14902)

* Clear name and parent of mock in autospecced objects used with attach_mock

* Add NEWS entry

* Fix reversed order of comparison

* Test child and standalone function calls

* Use a helper function extracting mock to avoid code duplication and refactor tests.
(cherry picked from commit 7397cda)

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

…oncurrent.futures module. (pythonGH-14905) (pythonGH-14906)

(cherry picked from commit d309352)

)

Reduce the number of unit tests run for the PGO generation task.  This
speeds up the task by a factor of about 15x.  Running the full unit test
suite is slow.  This change may result in a slightly less optimized build
since not as many code branches will be executed.  If you are willing to
wait for the much slower build, the old behavior can be restored using
'./configure [..] PROFILE_TASK="-m test --pgo-extended"'.  We make no
guarantees as to which PGO task set produces a faster build.  Users who
care should run their own relevant benchmarks as results can depend on
the environment, workload, and compiler tool chain.
(cherry picked from commit 4e16a4a)

Co-authored-by: Neil Schemenauer <nas-github@arctrix.com>

…honGH-14822)

(cherry picked from commit 1ebee37)

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

…ntion (pythonGH-13781) (python#14782)

(cherry picked from commit 7123ea0)

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

)

Stop depending on tkinter import *.
(cherry picked from commit c6fd6c8)

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

(cherry picked from commit f0807ab)

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

Verify that it appears to find roughly the right number of tests in the stdlib's testsuite.
(cherry picked from commit e95ac20)

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

(cherry picked from commit 2f224a0)


Co-authored-by: Brett Cannon <54418+brettcannon@users.noreply.github.com>

Automerge-Triggered-By: @brettcannon

…ree (pythonGH-14867) (pythonGH-14935)

* Fix the formatting in the documentation of the tostring() functions.

* bpo-34160: Document that the tostring() and tostringlist() functions also preserve the attribute order now.

* bpo-34160: Add an explanation of how users should deal with the attribute order.
(cherry picked from commit a3697db)

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

…nt/pi (pythonGH-14856) (pythonGH-14936)

* bpo-37399: Correctly attach tail text to the last element/comment/pi, even when comments or pis are discarded.
Also fixes the insertion of PIs when "insert_pis=True" is configured for a TreeBuilder.

…honGH-14934)

(cherry picked from commit 5380def)

Co-authored-by: Pradyun Gedam <pradyunsg@gmail.com>

…ythonGH-14939)

(cherry picked from commit 123536f)

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

…e rather than listdir. (14942)

(cherry picked from commit 93e8aa6)

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

…ads correctly (pythonGH-14593)

(cherry picked from commit 898318b)

Co-authored-by: Markus Mohrhard <markus.mohrhard@googlemail.com>

…le (pythonGH-14947)

Prior to this change the guard on an 'elif' used an assignment expression whose value was used in a later 'else' block, causing some confusion for people.

(Discussion on Twitter: https://twitter.com/brettsky/status/1153861041068994566.)

Automerge-Triggered-By: @brettcannon
(cherry picked from commit 544fa15)

Co-authored-by: Tzu-ping Chung <uranusjr@gmail.com>

…-14884)

Previously, pyc files in the embeddable distribution reported their
location as <build path>/<file stem>.py. This causes a little confusion
when interpreting stack traces as the file is in a (almost certainly)
incorrect location, and lacks the full relative path to Lib (e.g.
email/mime/image.py will only show image.py).

This change preserves the Lib relative location of the source file as a
path so that stack traces are (hopefully) less misleading and more
informative.

Co-Authored-By: Kyle Stanley <aeros167@gmail.com>
(cherry picked from commit c4cda43)

Co-authored-by: Bill Collins <bilbocollins@gmail.com>

…ythonGH-14960)

(cherry picked from commit b1eb20e)

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

…nGH-14968)

(cherry picked from commit 91e4957)

Co-authored-by: Derek Keeler <d3r3kk@users.noreply.github.com>

…nGH-14959)

(cherry picked from commit 46ebd4a)

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

…H-14979)

(cherry picked from commit 1ed915e)

The boxes for the font and highlight samples are now constrained by the overall config dialog size.  They gain scrollbars when the when a large font size makes the samples too large for the box.
(cherry picked from commit 3221a63)

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

…ates (pythonGH-14975) (pythonGH-14984)

(cherry picked from commit 6b5f1b4)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>

(cherry picked from commit 17a058e)

Co-authored-by: Nick Coghlan <ncoghlan@gmail.com>

Use an example shell interaction in the sample and better labels for shell elements.
(cherry picked from commit b222955)

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

…GH-14995)

* bpo-37697: Sync with importlib_metadata 0.19

* Run make regen-importlib

* 📜🤖 Added by blurb_it.
(cherry picked from commit 049460d)

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

…sqlite coverage (pythonGH-14985)

https://bugs.python.org/issue36044

Automerge-Triggered-By: @zooba
(cherry picked from commit e1b9002)

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

…trings (pythonGH-14433)

(cherry picked from commit 5b94f35)

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

…tect syntax errors (pythonGH-14612)

https://bugs.python.org/issue37500

Add a new field to the compiler structure that allows to be configured
so no bytecode is emitted. In this way is possible to detect errors by
walking the nodes while preserving optimizations.

https://bugs.python.org/issue37500
(cherry picked from commit 18c5f9d)

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

(cherry picked from commit 44212ec)

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

(cherry picked from commit fe330fc)

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

Python 3.8.0b3

They pass with tk 8.5.9 (Azure) but fail with the 8.6.x we install.
(cherry picked from commit e8874b8)

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

(cherry picked from commit f35c51d)

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

When scanning the string, most characters are valid, so
checking for invalid characters first means never needing
to check the value of strict on valid strings, and only
needing to check it on invalid characters when doing
non-strict parsing of invalid strings.

This provides a measurable reduction in per-character
processing time (~11% in the pre-merge patch testing).
(cherry picked from commit 8a758f5)

Co-authored-by: Marco Paolini <mpaolini@users.noreply.github.com>

python#15024)

Mark some individual tests to skip when --pgo is used.  The tests
marked increase the PGO task time significantly and likely don't
help improve optimization of the final executable.
(cherry picked from commit 52a48e6)

Co-authored-by: Neil Schemenauer <nas-github@arctrix.com>

This looks like the only place that proto 4 framing gets exercised
so leave it as part of the PGO task.
(cherry picked from commit eca7ffc)

Co-authored-by: Neil Schemenauer <nas-github@arctrix.com>

…ation (pythonGH-14845)

(cherry picked from commit 84846b0)

Co-authored-by: Jake Tesler <jake.tesler@gmail.com>

(cherry picked from commit 0acb646)

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

* bpo-33822: Add IDLE section of What's New 3.8

* Fix role.
(cherry picked from commit a72ca90)

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

(cherry picked from commit fff5cb2)

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

* bpo-33821: Update IDLE section of What's New 3.7

* Fix roles.
(cherry picked from commit 5982b72)

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

(cherry picked from commit d04f890)

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

…honGH-15046)

(cherry picked from commit 472eced)

Expose the CAN_BCM SocketCAN constants used in the bcm_msg_head struct
flags (provided by <linux/can/bcm.h>) under the socket library.

This adds the following constants with a CAN_BCM prefix:

  * SETTIMER
  * STARTTIMER
  * TX_COUNTEVT
  * TX_ANNOUNCE
  * TX_CP_CAN_ID
  * RX_FILTER_ID
  * RX_CHECK_DLC
  * RX_NO_AUTOTIMER
  * RX_ANNOUNCE_RESUME
  * TX_RESET_MULTI_IDX
  * RX_RTR_FRAME
  * CAN_FD_FRAME

The CAN_FD_FRAME flag was introduced in the 4.8 kernel, while the other
ones were present since SocketCAN drivers were mainlined in 2.6.25. As
such, it is probably unnecessary to guard against these constants being
missing.
(cherry picked from commit 31c4fd2)

Co-authored-by: karl ding <karlding@users.noreply.github.com>

(cherry picked from commit 1b29af8)

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

…ythonGH-15030)

Improve performance of sre_parse._uniq function.
(cherry picked from commit 9f55551)

Co-authored-by: yannvgn <hi@yannvgn.io>

(cherry picked from commit c9345e3)

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

…5052) (python#15070)

(cherry picked from commit 2491134)

Co-authored-by: mental <m3nta1@yahoo.com>

…nGH-14748)

This changeset increases the default size of the stack
for threads on macOS to the size of the stack
of the main thread and reenables the relevant
recursion test.
(cherry picked from commit 1a057ba)

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

BPO -16970: Adding error message for invalid args

Applied the patch argparse-v2 patch issue 16970, ran patch check and the test suite, test_argparse with 0 errors

https://bugs.python.org/issue16970
(cherry picked from commit 4b3e975)

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

…ythongh-15080)

(cherry picked from commit 854d0a4) (pythongh-12666)

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

)

Previously pdb checked the $HOME environmental variable
to find the user .pdbrc. If $HOME is not set, the user
.pdbrc would not be found.

Change pdb to use `os.path.expanduser('~')` to determine
the user's home directory. Thus, if $HOME is not set (as
in tox or on Windows), os.path.expanduser('~') falls
back on other techniques for locating the user's home
directory.

This follows pip's implementation for loading .piprc.

Co-authored-by: Dan Lidral-Porter <dlp@aperiodic.org>
(cherry picked from commit 7ea9a85)

Co-authored-by: Timothy Hopper <tdhopper@users.noreply.github.com>

…7337)

(cherry picked from commit 8e568ef)

Co-authored-by: Timo Furrer <tuxtimo@gmail.com>

Permanent redirect was explained as a temporary redirect.
(cherry picked from commit 5c72bad)

Co-authored-by: Florian Wendelborn <1133858+FlorianWendelborn@users.noreply.github.com>

…one. (pythonGH-14996)

There was a discrepancy between the Python and C implementations.

Add singletons ALWAYS_EQ, LARGEST and SMALLEST in test.support
to test mixed type comparison.
(cherry picked from commit 17e5264)

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

… in docs. (pythonGH-15062)

(cherry picked from commit ed5e8e0)

Co-authored-by: David H <dheiberg@mozilla.com>

Convert mouse y to line number in the sidebar rather than the text.
(cherry picked from commit 86f1a18)

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

registering finalizers if they aren't necessary.

…bdw-nogc

…15110) (pythonGH-15112)

(cherry picked from commit 8183bb8)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>

finalizer unless it's *really* needed: tp_finalize or tp_del are set, or
tp_weaklistoffset is set and there are actual weakrefs registered for the
object.

) (pythonGH-15116)

(cherry picked from commit b1c8ec0)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>

* Remove suggestion that is less relevant now that global lookups are much faster
* Add link for installing the recipes
(cherry picked from commit adf02b3)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>

Put the most common choice, Run Module, at the top.
(cherry picked from commit 1407029)

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

…-15121)

(cherry picked from commit 1213123)

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

gc used several PySys_WriteStderr() calls to write stats.
It caused stats mixed up when stderr is shared by multiple
processes like this:

  gc: collecting generation 2...
  gc: objects in each generation: 0 0gc: collecting generation 2...
  gc: objects in each generation: 0 0 126077 126077
  gc: objects in permanent generation: 0

  gc: objects in permanent generation: 0
  gc: done, 112575 unreachable, 0 uncollectablegc: done, 112575 unreachable, 0 uncollectable, 0.2223s elapsed
  , 0.2344s elapsed
(cherry picked from commit bf8162c)

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

pythonGH-15139)

(cherry picked from commit 4f9ffc9)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>

* add a missing ``.. availability::`` reST explicit markup;
* more consistent "see man page" sentences.
(cherry picked from commit cfebfef)

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

…-15117) (pythonGH-15155)

(cherry picked from commit 610a482)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>

)

(cherry picked from commit 3a5c433)

Co-authored-by: Barry Warsaw <barry@python.org>

…ceMatcher for ratio method (pythonGH-13482) (python#15157)

https://bugs.python.org/issue37004
(cherry picked from commit e9cbcd0)

Co-authored-by: sweeneyde <36520290+sweeneyde@users.noreply.github.com>

… Store app (pythonGH-15146)

(cherry picked from commit 1fab9cb)

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

…t Store package (pythonGH-15150)

(cherry picked from commit 87ce958)

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

…onGH-15165)

(cherry picked from commit 0378d98)

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

(cherry picked from commit e43e7ed)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>

…nGH-15184) (pythonGH-15188)

(cherry picked from commit aa542c2)

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

Before:

        >>> email.message_from_string('From: a@malicious.org@important.com', policy=email.policy.default)['from'].addresses
        (Address(display_name='', username='a', domain='malicious.org'),)

        >>> parseaddr('a@malicious.org@important.com')
        ('', 'a@malicious.org')

    After:

        >>> email.message_from_string('From: a@malicious.org@important.com', policy=email.policy.default)['from'].addresses
        (Address(display_name='', username='', domain=''),)

        >>> parseaddr('a@malicious.org@important.com')
        ('', 'a@')

https://bugs.python.org/issue34155
(cherry picked from commit 8cb65d1)

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

…thonGH-15142)

* bpo-32912: Revert warnings for invalid escape sequences.

DeprecationWarning will continue to be emitted for invalid escape sequences in string and bytes literals in 3.8 just as it did in 3.7.

SyntaxWarning may be emitted in the future. But per mailing list discussion, we don't yet know when because we haven't settled on how to do so in a non-disruptive manner.

(cherry picked from commit 51aac15)

Co-authored-by: Greg Price <gnprice@gmail.com>

…:'. (pythonGH-15044)

This should fix the IndexError trying to retrieve `DisplayName.display_name` and `DisplayName.value` when the `value` is basically an empty string.

https://bugs.python.org/issue32178
(cherry picked from commit 09a1872)

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