Move some \index entries around so we can avoid using empty comments; empty comments trigger a bug in LaTeX2HTML.
Move some \index entries around so we can avoid using empty comments;
empty comments trigger a bug in LaTeX2HTML.

Problem reported by Gerry Wiener <gerry@ucar.edu>.

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