…ILD_CORE (GH-6489)

Setup modules are no longer built with -DPy_BUILD_CORE by default,
as using that flag may now require including additional internal-only header files.

Instead, only the modules that specifically need it use that setting.

Upgrade ensurepip to bundle pip 10.0.1

Also update PIL doc references to Pillow.

This change contains minor things that make diffing between Lib/tokenize.py and
Lib/lib2to3/pgen2/tokenize.py cleaner.

Starting with glibc 2.27.9000-xxx, sigaddset() can return EINVAL for some
reserved signal numbers between 1 and NSIG.  The `range(1, NSIG)` idiom
is commonly used to select all signals for blocking with `pthread_sigmask`.
So we ignore the sigaddset() return value until we expose sigfillset()
to provide a better idiom.

#6446)

* bpo-33251: ConfigParser.items no longer returns items present in vars.

Documentation for `ConfigParser.items()` states:
'Items present in vars no longer appear in the result.'

This fix aligns behaviour to that specified in the documentation.

GH-6273)

External importers were being added in both phases of the import
system initialisation.

They're only supposed to be added in the second phase, after the
import machinery has been appropriately configured.

Patch by Neeraj Badlani.

Added tests to ensure that all defined opcodes are supported.

GH-2205)

Previously, the predicate parameter was mentioned, but what it was to be
called with was not documented and required either trial-and-error or
looking into the source to find that it is called with the `value`, or
second item, of the full members list. This change addresses what the
predicate will receive, as well as does some light formatting to make
this clear.

Fix test_embed.test_pre_initialization_sys_options() when building with --enable-shared

Cast pointer difference from ssize_t to int: a frame is very unlikely
larger than 2 GB.

…ns (#6616)

The wording here seems wrong, as per https://bugs.python.org/msg315792

…y it in html (GH-6442)

* Add a space to ensurepip's --altinstall option
* Add periods to the arguments of ensurepip that didn't have it

This makes --help for all optional arguments consistent and also makes it
consistent with pip --help.

…H-7242)

Fix test_ignore() of multiprocessing tests like
test_multiprocessing_forkserver: use support.PIPE_MAX_SIZE to make
sure that send_bytes() blocks.

…-7196)

85% of them are already links.

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!

… few buildbots. (gh-7288)

For bpo-32604 I added some subinterpreter-related tests (see #6914) that are causing crashes on a few buildbots. I'm working on fixing the crashes (see #7251).  This change temporarily disables the triggering test.

Get the version of the C compiler.

* No longer clear filters, like --match, to re-run failed tests in
  verbose mode (-w option).
* Tests result: always indicate if tests have been interrupted.
* Enhance tests summary

A check has been added in Logger.isEnabledFor() to return False when the logger is disabled. This avoids unnecessary work being done when a disabled logger is used.

Check which readline implementation is used based on the readline
docstring.

* "running:" progress: Format number of seconds as hours and minutes
* format_duration(): count also minutes as hours
* Create Lib/test/libregrtest/utils.py

…GH-7296)

… documentation. (GH-7297)

)

…H-7310)

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

Use also support.SOCK_MAX_SIZE, not only support.PIPE_MAX_SIZE, to
get the size for a blocking send into a multiprocessing pipe.