Voici une solution : % !TeX TS-program = xelatex \documentclass[french]{article} \usepackage{ifxetex} \ifxetex \usepackage{fontspec} \else \usepackage{lmodern} \fi % \usepackage{babel} \usepackage{listings} \makeatletter \def\lst@visiblespace{\lst@ttfamily{\textvisiblespace}} \makeatother % \begin{document}%,showstringspaces=true] \begin{lstlisting}[language=Python,showstringspaces=true,basicstyle=\ttfamily] # un commentaire i = 1 while i <= 5: print(i) i = i + 1 print('Fini !') \end{lstlisting} \end{document} On obtient ceci : ![alt text][1] [1]: https://texnique.fr/osqa/upfiles/Screen_Shot_2019-11-05_at_00.35.51.png

% !TeX TS-program = xelatex \documentclass[french]{article} \usepackage{ifxetex} \ifxetex \usepackage{fontspec} \else \usepackage{lmodern} \fi % \usepackage{babel} \usepackage{listings} \makeatletter \def\lst@visiblespace{\lst@ttfamily{\textvisiblespace}} \makeatother % \begin{document}%,showstringspaces=true] \begin{lstlisting}[language=Python,showstringspaces=true,basicstyle=\ttfamily] # un commentaire i = 1 while i <= 5: print(i) i = i + 1 print('Fini !') \end{lstlisting} \end{document} ![alt text][1] [1]: https://texnique.fr/osqa/upfiles/Screen_Shot_2019-11-05_at_00.35.51.png

% !TeX TS-program = xelatex \documentclass[french]{article} \usepackage{ifxetex} \ifxetex \usepackage{fontspec} \else \usepackage{lmodern} \fi % \usepackage{babel} \usepackage{listings} \makeatletter \def\lst@visiblespace{\lst@ttfamily{\textvisiblespace}} \makeatother % \begin{document}%,showstringspaces=true] \begin{lstlisting}[language=Python,showstringspaces=true,basicstyle=\ttfamily] # un commentaire i = 1 while i <= 5: print(i) i = i + 1 print('Fini !') \end{lstlisting} \end{document}