exclude_patterns in Sphinx conf.py will exclude the .rsts from the build. It
was incorrect exclude 2.x rsts in that.  This fix contributed again Jelle
Zijlstra, excludes doctests in whatsnew/2.7.rst from being exercised by using
doctests skip option.

Patch by Terry Chia and Laura Rupprecht.

Patch contributed by Jelle Zijlstra.

Patch contributed by Jelle Zijlstra.

instead of the generic ProcessTestCase class as they are posix
specific.

  Patch by Xavier de Gaye.

Patch by ingrid, Gregory Loyse and Jelle Zijlstra.

Patch by Xavier de Gaye.

The update_idletasks solution was provided by Serhiy Storchaka.

BrokenPipeError when the child process dies before .communicate()
is called in more (all?) circumstances.

Patch by Sean Rodman, test by Kaushik N.

Patch contributed by Dave Sawyer.

Patch contributed by Dave Sawyer.