> by \textgreater{} is not enough, >> applies ligature #5179Description
Sphinx LaTeX escapes > in source to \textgreater{} in produced TeX file. Unfortunately with lualatex, \textgreater{}\textgreater{} becomes a ligature: ». This is not the case with xelatex or pdflatex.
This showed up as real-life problem when trying to build the PDFs of the CPython documentation using lualatex, as Python wants >>> indexed of course!