* Use explicit numbering for footnotes referred by explicit number.
* Fix literal strings formatting in howto/urllib2.rst.
* Add `:noindex:` to duplicated definition of list.
* Update susp-ignored.csv for reference/expressions.rst.
(cherry picked from commit d97b7dc9)

* bpo-30357 each test in test_thread waits until all spawn threads finish

* bpo-30357 each test in test_thread waits until all spawn threads finish

* bpo-30357: test_thread now uses threading_cleanup() (#1592)

test_thread: setUp() now uses support.threading_setup() and
support.threading_cleanup() to wait until threads complete to avoid
random side effects on following tests.
Co-Authored-By: Victor Stinner <victor.stinner@gmail.com>

* bpo-30357: test_thread now uses threading_cleanup() (#1592)

test_thread: setUp() now uses support.threading_setup() and
support.threading_cleanup() to wait until threads complete to avoid
random side effects on following tests.
Co-Authored-By: Victor Stinner <victor.stinner@gmail.com>

(cherry picked from commit f25a8de8)

Also backport new functions temp_dir() and python_is_optimized().
temp_cwd() now accepts None as a name (means using tempfile.mkdtemp).
check_syntax_error() now accepts arguments lineno and offset.
Use more specific error messages in get_attribute().

Build the 'suspicious' doc target, turn on warnings-as-errors on the
docs, and always build the docs.  This better matches master's doc build
setup.

Fix for bpo-6393: Python crashes on OSX when $LANG is set to some (but
not all) invalid values due to an invalid result from nl_langinfo

(cherry picked from commit 6d77e071)

Fix sysconfig.is_python_build() if Python is built with Visual Studio
2008 (VS 9.0).

* bpo-30283: regrtest: backport test_coverage()

* Add --coverage option, the option was already described in the doc
* When coverage is used, regrtest now pass all options to runtest()
  and calls also accumulate_result() (as done when coverage is not
  used).
* bpo-25260: Fix coverage on Windows: remove the list of ignored
  directories.

* bpo-30283: regrtest: backport test_slow_interrupted()

* Fix regrtest to report interrupted tests as omitted rather than
  failed.
* bpo-25260: Fix coverage on Windows: remove the list of ignored
  directories.

* bpo-30283: Fix test_regrtest on Visual Studio 2008

Skip Tools\buildbot\test.bat and PCbuild\rt.bat if Python was not
compiled in PCbuild (but compiled in PC\VS9.0\ for example).

Try to fix test_startfile's inability to clean up after itself in
time. Patch by Jeremy Kloth.

Fix the following support.rmtree() error while trying to remove the
temporary working directory used by Python tests:

WindowsError: [Error 32] The process cannot access the file because
it is being used by another process: ...

Original commit: 8a53dbeb

[2.7] gitignore: add rules for the PC/ directory

* bpo-29243: Fix Makefile with respect to --enable-optimizations

When using the Profile Guided Optimization (./configure --enable-optimizations)
Python is built not only during `make` but rebuilt again during `make test`,
`make install` and others. This patch fixes the issue.

Note that this fix produces no change at all in the Makefile if configure is
run witout --enable-optimizations.

* !squash.
(cherry picked from commit a1054c3b)

* regrtest: add --slowest alias to --slow

* make buildbottest: add --slowest option

* regrtest: add "- " prefix to --slowest output

* regrtest: Fix an outdated comment

* regrtest: replace PermissionError

Replace PermissionError with OSError and check on exc.errno.
PermissionError was added to Python 3.3.

* regrtest: add -3 -tt options to run Python scripts

* regrtest: backport --list-tests option

* regrtest: backport "Tests result: xxx" summary

* regrtest: backport total duration

* regrtest: add timestamp to the progress

* regrtest: describe previous test state

* Add the state of the test: passed, failed, etc.
* If a test took longer than 30 seconds, log its execution time

* regrtest: -jN logs running workers

* regrtest: mention if tests are run in parallel

* regrtest: parallel mode is more verbose during wait

Display running tests every 30 seconds if no test completed in the
meanwhile.

* test_regrtest: fix typo in SubprocessRun

* bpo-30283: regrtest: add --testdir option

* bpo-30283: Backport _testcapi.raise_signal()

Function used by test_regrtest to simulate an interrupted unit test.

* bpo-30283: Backport test_regrtest from master

Fix the following warning when test_inspect.py is compiled to
test_inspect.pyc:

test_inspect.py:505: SyntaxWarning: tuple parameter unpacking has been removed in 3.x
  def spam_deref(a, b, c, d=3, (e, (f,))=(4, (5,)), *g, **h):

Replace also test.test_support import with test.support.

Don't stop the worker thread if a child failed.

support.unlink() now only ignores ENOENT and ENOTDIR, instead of
ignoring any OSError exception.

It was possible to get a core dump by using uninitialized
_json objects. Now __new__ methods create initialized objects.
__init__ methods are removed..
(cherry picked from commit 76a3e51a)

ExpatParser.parse() of xml.sax.xmlreader now closes the source: close
the file object or the urllib object if source is a string (not an
open file-like object).

Add test_parse_close_source() unit test.

(cherry picked from commit 685cdb9a)

This reverts commit 0f4ed2cd (though, the tests are retained) and the followup 58ab4b57.

See discussion on bpo-29094.

Don't rebuild generated files based on file modification time
anymore, the action is now explicit. Replace "make touch"
with "make regen-all".

Changes:

* Remove "make touch", Tools/hg/hgtouch.py and .hgtouch
* Add a new "make regen-all" command to rebuild all generated files
* Add subcommands to only generate specific files:

  - regen-ast: Include/Python-ast.h and Python/Python-ast.c
  - regen-grammar: Include/graminit.h and Python/graminit.c
  - regen-opcode-targets: Python/opcode_targets.h

* Add PYTHON_FOR_REGEN variable
* pgen is now only built by by "make regen-grammar"
* Add $(srcdir)/ prefix to paths to source files to handle correctly
  compilation outside the source directory

Oops, I forgot that PermissionError was introduced in Python 3.3!
Replace PermissionError with OSError and check on errno.

Add setUpModule() and tearDownModule() functions to test_site to
save/restore sys.path at the module level to prevent warning if the
user site directory is created, since site.addsitedir() modifies
sys.path.
(cherry picked from commit b85c1369)

DummyFTPServer now calls del_channel() on bind() error to prevent the
following warning in TestIPv6Environment.setUpClass():

Warning -- asyncore.socket_map was modified by test_ftplib
  Before: {}
  After:  {3: <test.test_ftplib.DummyFTPServer 127.0.0.1:0 at ...>}

Use EnvironGuard on BuildExtTestCase to save/restore os.environ, to fix the
following warning:

Warning -- os.environ was modified by test_distutils

MSVCCompiler.initialize() of distutils.msvc9compiler modifies
os.environ.

Replace
   File "<stdin>", line 1, in ?
with
   File "<stdin>", line 1, in <module>.
(cherry picked from commit 8856940c)

* Add Appveyor to Python 2.7 branch

* Adapt AppVeyor config for Python 2

* Replace -j0 with -j2: -j0 is ignored on Python 2
* Replace --slowest with --slow
* Remove --timeout option (it was introduced in Python 3)

Don't set cursorSetReturnsNone to DEFAULT_CURSOR_SET_RETURNS_NONE
anymore if self->myenvobj is set.

Fix a GCC warning on the strange indentation.

Backport the CHILD_ERROR status from master: a test is considered as
failed if a worker process running a test exited with a code
different than zero.

Change also the output: write stdout and stderr of the child process
after the test name, instead of writing it before.

accumulate_result(): don't use time of CHILD_ERROR or INTERRUPTED
results.

Use EnvironGuard on InstallTestCase and UtilTestCase.

Backport fixes from master to prevent the following warning:

Warning -- os.environ was modified by test_distutils

Ignore more generated files and test data downloaded by tests.

In PySlice_IndicesEx, clip the step to [-PY_SSIZE_T_MAX,
PY_SSIZE_T_MAX] rather than [PY_SSIZE_T_MIN, PY_SSIZE_T_MAX].

(cherry picked from commit e6fc7401)