.. index:: babel, sphinx, issue .. blogpost:: :title: Why do I see invered question in a notebook converted into PDF? :keywords: latex, :date: 2015-08-30 :categories: sphinx, notebook The function :func:`process_notebooks ` still uses the executable `pdflatex `_ and not `xetex `_ which can handle inline unicode characters. That's why they are replaced by *¿* by function :func:`post_process_latex `.