consolidating and improving human-validated tests of Idle. Change other files
as needed to work with htest.  Running the module as __main__ runs all tests.

Backport from Alex Gaynor.

This brings the option to install Python on the Windows Path.
Committed per Benjamin Peterson's approval on python-dev.

Patch by Brian Kearns.

This makes it match the new example below, and allows Sphinx's
"hide the prompts and output" feature to work.

overrides a ``return`` in the ``try`` suite.

test_support._is_gui_available is now defined the same way on every
platform, and now includes the Windows-specific check that had been in the
Windows version of _is_gui_available and the OSX-specific check that was
in runtktests.check_tk_availability.  Also, every platform checks whether
Tk can be instantiated (if the platform-specific checks passed).

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

Patch by Anton Afanasyev.

Issue #9291 Do not attempt to re-encode mimetype data read from registry in ANSI mode. Initial patches by Dmitry Jemerov & Vladimir Iofik

Issue21349 Passing a memoryview to _winreg.SetValueEx now correctly raises a TypeError where it previously crashed the interpreter. Patch by Brian Kearns

from 8.5.2 to 8.5.15.

reformat width in the configuration menu.

configurations.  Patch by John Szakmeister.

  in a ncursesw directory.

Patch by Christian Hudon.