The Sphinx latex writer crashes if a documentation has more than 7
levels in a section hierarchy. The LaTeXTranslator class defines 7
section names, each corresponding to a level. If a deeper level is
encountered, no appropriate section name can be found:

File "[..]/svn/doctools/sphinx/latexwriter.py", line 348,  in visit_title
     print "self.sectionnames", self.sectionnames[self.sectionlevel]
IndexError: list index out of range