bpo-34279, bpo-35412: support.run_unittest() no longer raises
TestDidNotRun if a test result contains skipped tests. The
exception is now only raised if no test have been run and no test
have been skipped.

* Add the pid and parent pid to multiprocessing.BaseProcess.__repr__().
* Add negative sign (ex: "-SIGTERM") to exitcode (process killed
  by a signal)
* Only call _popen.poll() once.

Example:
  <ForkProcess(ForkPoolWorker-1, started daemon)>
becomes:
  <ForkProcess name='ForkPoolWorker-1' pid=12449 parent=12448 started daemon>

Example:
  <ForkProcess(ForkPoolWorker-1, stopped[SIGTERM] daemon)>
becomes:
  <ForkProcess name='ForkPoolWorker-1' pid=12960 parent=12959 stopped exitcode=-SIGTERM daemon>

# Fixed missing colun in library/sys.po


[bpo-35492](https://bugs.python.org/issue35492): Fixed missing colun in library/sys.po

* Add multiprocessing.Pool.__repr__() to ease debug
* RUN, CLOSE and TERMINATE constants values are now strings rather
  than integer to ease debug

multiprocessing.Pool.__enter__() now fails if the pool is not
running: "with pool:" fails if used more than once.

Add testcase to test_future4: check unicode literal.

Drop Mac OS 9 and Rhapsody support from the platform module:

* Rhapsody: last release in 2000
* Mac OS 9: last release in 2001

* Fix partial and partial method signatures in mock

* Add more calls

* Add NEWS entry

* Use assertEquals and fix markup in NEWS

* Refactor branching and add markup reference for functools

* Revert partial object related changes and fix pr comments

* bpo-35394: Add empty slots to abstract asyncio protocols

* Add missing test file

The test only except SIGUSR1Exception inside wait_signal(), but the signal can be sent during subprocess_send_signal() call.

Forkserver and fork are not available on Windows and therefore these test must be skipped.

The following test fails if a different process creates or removes
a file on the same disk partition between the two lines:

    usage = shutil.disk_usage(os.path.dirname(__file__))
    self.assertEqual(usage, shutil.disk_usage(__file__))

Only test that disk_usage() succeed on a filename, but don't check
the result. Add also tests on the fields type (must be int).

* bpo-35454: Fix miscellaneous minor issues in error handling.

* Fix a null pointer dereference.

This speeds up pickling of some iterators.

This fixes also error handling in pickling methods when fail to
look up builtin "getattr".

https://bugs.python.org/issue35401

Also adds the PC/layout script for generating layouts on Windows.

Propagate unexpected errors (like MemoryError and KeyboardInterrupt) to user.

Include <pyconfig.h> ealier in Modules/expat/xmltok.c to define
properly _POSIX_C_SOURCE. Python defines _POSIX_C_SOURCE as 200809L,
whereas <features.h> (included indirectly by <string.h>) defines
_POSIX_C_SOURCE as 199506L.

The length check for AF_ALG salg_name and salg_type had a off-by-one
error. The code assumed that both values are not necessarily NULL
terminated. However the Kernel code for alg_bind() ensures that the last
byte of both strings are NULL terminated.
Signed-off-by: Christian Heimes <christian@python.org>

Fix xml.dom.minidom cloneNode() on a document with an entity: pass
the correct arguments to the user data handler of an entity (fix an
old copy/paste mistake).

Bug spotted and fix proposed by Charalampos Stratakis, initial
reproducer written by Petr Viktorin.
Co-Authored-By: Charalampos Stratakis <cstratak@redhat.com>
Co-Authored-By: Petr Viktorin <encukou@gmail.com>

In _localemodule.c and selectmodule.c, remove dead code that would
cause double decrefs if run.

In addition, replace PyList_SetItem() with PyList_SET_ITEM() in cases
where a new list is populated and there is no possibility of an error.

In addition, check if the list changed size in the loop in array_array_fromlist().