The attempt to shut up deprecation warnings for doctest's own use of is_private in its tests failed if doctest.py was run directly.  Now it works.
The attempt to shut up deprecation warnings for doctest's own use of
is_private in its tests failed if doctest.py was run directly.  Now
it works.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator