Wie mache ich die Nummerierung im listings-Paket in der PDF nicht auswählbar?

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\documentclass{scrreprt}
\usepackage{selinput}
\SelectInputMappings{adieresis={ä},  germandbls={ß}}
\usepackage[ngerman]{babel}
\usepackage{xcolor} 
\usepackage{listings} 
%=================================
\usepackage{accsupp}    
\newcommand{\noncopynumber}[1]{ \BeginAccSupp{method=escape,ActualText={}}
        #1
\EndAccSupp{}}%
    \lstset {numberstyle=\footnotesize\color{gray!80!black}\noncopynumber, 
    numbers=left, 
    numbersep=1.5pt,
    columns=flexible,
    }
%=================================
%=========
\begin{document}
%=========
\lstset{language=TeX, 
%keywordstyle=\color{blue}
commentstyle=\color{green!50!black},
backgroundcolor=\color{yellow!50},
breaklines=true,
rulecolor=\color{lightgray},
title=bar
} 
\begin{lstlisting}[frame=single] 
\begin{foo}
........
{........}        %insert great things here
........
\end{foo}
\end{lstlisting}
%=========
\end{document}
 
 
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