(cherry picked from commit 93e8aa62)
Co-authored-by: Benjamin Peterson <benjamin@python.org>

(cherry picked from commit 79042ac4)
Co-authored-by: Tal Einat <taleinat@gmail.com>

(cherry picked from commit 2a3d4d9c)
Co-authored-by: Benjamin Peterson <benjamin@python.org>

(cherry picked from commit f6cdd3ff)
Co-authored-by: Hai Shi <shihai1992@gmail.com>

0 is a legal index.
(cherry picked from commit f8709e80)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

Also fix a name misspelling.
(cherry picked from commit 45bc61b9)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

(cherry picked from commit 2cd07920)
Co-authored-by: Benjamin Peterson <benjamin@python.org>

When building 2.7 on macOS without system header files installed in
``/usr/include``, a few extension modules dependent on system-supplied
third-party libraries were not being built, most notably zlib.
This situation arose in the past when building without the Command
Line Tools and the option to install header files in the traditional
system locations (like /usr/include).  As of macOS 10.14, the
header files are only available in an SDK so the problem addressed
here affects most 2.7 builds.

* Added documentation for textwrap.dedent behavior.
(cherry picked from commit eb97b921)
Co-authored-by: tmblweed <tmblweed@users.noreply.github.com>


https://bugs.python.org/issue30754

_PyWarnings_Init() only allocates memory once at startup but it is
not released at exit. Ignore this issue to be able to catch other
bugs more easily.

(cherry picked from commit 3b03b09f)
Co-authored-by: Benjamin Peterson <benjamin@python.org>

Fix test_wsgiref.testEnviron() to no longer depend on the environment
variables (don't fail if "X" variable is set).

testEnviron() now overrides os.environ to get a deterministic
environment. Test full TestHandler.environ content: not only a few
selected variables.
(cherry picked from commit 5150d327)
Co-authored-by: Victor Stinner <vstinner@redhat.com>

Add $(PyDebugExt) in "Killing any running python$(PyDebugExt).exe
instances...".

(cherry picked from commit c0295dba)

* regrtest: Add --cleanup option to remove "test_python_*" directories
  of previous failed test jobs.
* Add "make cleantest" to run "python -m test --cleanup".

(cherry picked from commit 47fbc4e4)

Rephrase and clarify that "the entire Python program exits when only daemon threads are left". This matches the documentation at https://docs.python.org/3/library/threading.htmlGH-thread-objects.
(cherry picked from commit bb110cc2)
Co-authored-by: mbarkhau <mbarkhau@gmail.com>

test_gdb no longer fails if it gets an "unexpected" message on
stderr: it now ignores stderr. The purpose of test_gdb is to test
that python-gdb.py commands work as expected, not to test gdb.

(cherry picked from commit e56a123f)

'\0' is the NUL byte not NULL..
(cherry picked from commit 7821b4c6)

Cherry-picked from 66d47da8.

This is a manual backport of ca7fe506 since 2.7 has `http.cookiejar` in `cookielib`


https://bugs.python.org/issue35121

If urlparse.urlsplit() detects an invalid netloc according to NFKC
normalization, the error message type is now str rather than unicode,
and use repr() to format the URL, to prevent <exception str() failed>
when display the error message.

Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>

https://bugs.python.org/issue34836

(cherry picked from commit dc247650)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>

This avoids the search dialogs being hidden behind the editor window.

(cherry picked from commit 554450fb)

(cherry picked from commit 59e7bbca)
Co-authored-by: Julien Palard <julien@palard.fr>

(cherry picked from commit d3371691)
Co-authored-by: cclauss <cclauss@me.com>

* bpo-12639: msilib.Directory.start_component() fails if *keyfile* is not None (GH-13688)

msilib.Directory.start_component() was passing an extra argument to CAB.gen_id().
(cherry picked from commit c8d5bf6c)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Patch by Kojo Idrissa.
(cherry picked from commit 1b4abcf3)
Co-authored-by: Kojo Idrissa <kojoidrissa@users.noreply.github.com>


https://bugs.python.org/issue33071

https://bugs.python.org/issue33006

Skip the test if xrange(sys.maxsize) raises an OverflowError.