Issue #21321: itertools.islice() now releases the reference to the source iterator when the slice is exhausted.

Patch by Anton Afanasyev.

Issue #9815: assertRaises now tries to clear references to local variables in the exception's traceback.

Patch by Claudiu Popa.

Patch by Diana Clarke.

Pointed out by Brian Kearns.

This should stop Buildbot from falsely reporting a warning on Windows bots.

children.

may be calling wait() or poll() on a Popen instance at the same time
without losing the Popen.returncode value.  Fixes issue #21291.

Issue #21127: Path objects can now be instantiated from str subclass instances (such as numpy.str_).

Thanks to Antony Lee for the report and preliminary patch.

reformat width in the configuration menu.

facility. Provides a better way to handle file descriptor close.

Address issue #15002 . Patch contributed by Christian Theune.

Fix by 'amathew', test by Marek Stepniowski.

when launched on OS X.  (Original patch by Ronald Oussoren)

configurations.  Patch by John Szakmeister.

Also fixes a long-standing typo in Doc/README.txt.

Initial patch by Dave Sawyer.

  in a ncursesw directory.

- Issue #21274: Define PATH_MAX for GNU/Hurd in Python/pythonrun.c.

- Issue #21276: posixmodule: Don't define USE_XATTRS on KFreeBSD and the Hurd.

- Issue #21275: Fix a socket test on KFreeBSD.