\begin{Verbatim}[commandchars=\\\{\}]
\PYG{n+nf+fm}{\PYGZus{}\PYGZus{}init\PYGZus{}\PYGZus{}}\PYG{p}{(}\PYG{n+nb+bp}{self}\PYG{p}{,} \PYG{n}{data}\PYG{o}{=}\PYG{n+nb+bp}{None}\PYG{p}{,} \PYG{n}{alphabet}\PYG{o}{=}\PYG{n+nb+bp}{None}\PYG{p}{,} \PYG{n}{mat\PYGZus{}name}\PYG{o}{=}\PYG{l+s+s2}{\PYGZdq{}\PYGZdq{}}\PYG{p}{,} \PYG{n}{build\PYGZus{}later}\PYG{o}{=}\PYG{l+m+mi}{0}\PYG{p}{)}
\end{Verbatim}
