Patch by Brent Tubbs.

and IDLE Help file.  (Thanks to Nick ODell and Todd Rovito for suggestions.)
Update Debug menu options in docs to match current code plus various other
minor IDLE doc and help edits.

Fix issue #16270: urllib may hang when used for retrieving files via FTP by using a context manager.

Patch by Todd Rovito.

Thanks to Yongzhi Pan from docs@

Reported by: Roumen Petrov

Original patch by Felipe Cruz.

Specifically, make sure the 'Object', 'Python' and 'Include' directories
in the build directory take precedence over the source directory if we're
an out-of-tree build.

Fix typeslots.inc so that it gets generated into the build directory.

This change includes replacing the single-line signature documentation
with a more complete multiple-line signature.

Add handling of the 6.2 release line, aka Windows 8 and Windows 2012 Server.

Issue #12947: revert earlier workaround and use a monkey-patch to enable showing doctest directives only in the doctest docs.

misleading error message stating that args[0] did not exist when
either the cwd or executable keyword arguments specified a path that
did not exist.

It now keeps track of if the child got as far as preexec and reports it if
not back to the parent via a special "noexec" error message value in
the error pipe so that the cwd can be blamed for a failed chdir
instead of the exec of the executable being blamed instead.

The executable is also always reported accurately when exec fails.

Unittests enhanced to cover these cases.

Patch by Berker Peksag.