With addCleanup() f.close() was executed after tearDown().
(cherry picked from commit 6592d7fe)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Raise TypeError instead of SystemError for unsupported operations.
(cherry picked from commit e9e39760)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>

(cherry picked from commit af1ec97a)
Co-authored-by: Tobias Kunze <r@rixx.de>

(cherry picked from commit 5f48e264)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

(cherry picked from commit f8225496)
Co-authored-by: INADA Naoki <methane@users.noreply.github.com>

(cherry picked from commit 2a4a62ba)
Co-authored-by: Steve Dower <steve.dower@microsoft.com>

(cherry picked from commit a8eb5854)
Co-authored-by: A. Jesse Jiryu Davis <jesse@emptysquare.net>

(cherry picked from commit f7745e1d)
Co-authored-by: Tobias Kunze <r@rixx.de>

Fix test_warnings.test_module_globals() when python3 is run with
-Werror.
(cherry picked from commit e292b75e)
Co-authored-by: Victor Stinner <vstinner@redhat.com>

The bytes parameter uses big endian.
(cherry picked from commit b75ec085)
Co-authored-by: Farhaan Bukhsh <farhaan.bukhsh@gmail.com>

(cherry picked from commit b609e687)
Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>

* Fix AttributeError (not all SSL exceptions have 'errno' attribute)

* Increase default handshake timeout from 10 to 60 seconds
* Make sure start_tls can be cancelled correctly
* Make sure any error in SSLProtocol gets propagated (instead of just being logged)
(cherry picked from commit 96026431)
Co-authored-by: Yury Selivanov <yury@magic.io>

Previously, the mouse wheel and scrollbar slider moved text by a fixed
number of pixels, resulting in partial lines at the top of the editor
box. The change also applies to the shell and grep output windows,
but not to read-only text views.
(cherry picked from commit d49dbd9a)
Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>

(cherry picked from commit 88cc339e)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

It depended on a global variable set by other tests.
(cherry picked from commit 7cfd8c6a)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

(cherry picked from commit e36837cb)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

* Prevent spurious message if taking a shortcut
* Fix YAML style
* Disable largefile tests
(cherry picked from commit 47a6c79f)
Co-authored-by: Zachary Ware <zachary.ware@gmail.com>

(cherry picked from commit 13f51d9e)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

(cherry picked from commit e95dfc50)
Co-authored-by: Stefan Krah <skrah@bytereef.org>

Separate tests leaked files or were depended on files leaked in other tests.
(cherry picked from commit 027f95c7)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

`writerows()` takes an iterable.
(cherry picked from commit a801cf16)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>

This is a simple grammatical fix correcting "...object whose `__self__` attributes is ..." to "...object whose `__self__` attribute is ...".
(cherry picked from commit 00818c8f)
Co-authored-by: Zach Mitchell <zmitchell@users.noreply.github.com>

Fix typos in code comments: bdb.py and configure.ac.
(cherry picked from commit b5c246f8)
Co-authored-by: Eitan Adler <grimreaper@users.noreply.github.com>

The difference from before is that the settings are now on the
Highlights tab instead of the Extensions tab and only change one theme
at a time instead of all themes. The default for light themes is black
on light gray, as before. The default for the IDLE Dark theme is white
on dark gray, which better fits the dark theme.

When one starts IDLE from a console and loads a custom theme without
definitions for 'context', one will see a warning message on the console.
To stop the warning, go to Options => Configure IDLE => Highlights,
select the custom theme if not selected already, select 'Code Context',
and select foreground and background colors.
(cherry picked from commit de651626)
Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>

Instead of displaying a fixed number of lines, some blank, Code Context
now displays the variable number of actual context lines.  When there
are no context lines, it shows a single blank line to indicate that the
feature is turned on.

The Code Context configuration option is changed from 'numlines'
(default 3) to 'maxlines' (default 15) to avoid possible interference
between user settings for the old and new versions of Code Context.
(cherry picked from commit 29996a1c)
Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>

(cherry picked from commit c0d341d4)
Co-authored-by: Vinay Sajip <vinay_sajip@yahoo.co.uk>

bpo-33400: Removed references to RFC3339 and ISO8601 from the logging documentation. (GH-7297) (GH-7302)

(cherry picked from commit 23cee80c)
Co-authored-by: Vinay Sajip <vinay_sajip@yahoo.co.uk>

Use also support.SOCK_MAX_SIZE, not only support.PIPE_MAX_SIZE, to
get the size for a blocking send into a multiprocessing pipe.
(cherry picked from commit 252f6abe)
Co-authored-by: Victor Stinner <vstinner@redhat.com>

socketserver.ThreadingMixIn no longer tracks active threads if
block_on_close is false.

(cherry picked from commit e905c844)
Co-authored-by: pkerling <pkerling@casix.org>

* bpo-33692: pythoninfo detect libedit on Python 3.6 (GH-7293)
* bpo-33717: pythoninfo: add CC --version (GH-7290)

Fix a crash in Python initialization when parsing the command line
options.

Fix memcpy() size parameter: previously, we read one wchar_t after
the end of _PyOS_optarg. Moreover, don't copy the trailingg NUL
character: we write it manually anyway.

Thanks Christoph Gohlke for the bug report and the fix!
(cherry picked from commit 58d16832)
Co-authored-by: Victor Stinner <vstinner@redhat.com>

85% of them are already links.
(cherry picked from commit 0a36ac1a)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

(cherry picked from commit a5c42284)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Fix test_ignore() of multiprocessing tests like
test_multiprocessing_forkserver: use support.PIPE_MAX_SIZE to make
sure that send_bytes() blocks.
(cherry picked from commit 5d6c7ed5)
Co-authored-by: Victor Stinner <vstinner@redhat.com>