\begin{Verbatim}[commandchars=\\\{\}]
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{m} \PYG{o}{=} \PYG{n}{substitutions}\PYG{o}{.}\PYG{n}{select}\PYG{p}{(}\PYG{l+s+s2}{\PYGZdq{}ATCG\PYGZdq{}}\PYG{p}{)}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n+nb}{print}\PYG{p}{(}\PYG{n}{m}\PYG{p}{)}
\PYG{g+go}{    A    T    C   G}
\PYG{g+go}{A 2.0  1.0  4.5 0.0}
\PYG{g+go}{T 1.0 12.0  0.5 0.0}
\PYG{g+go}{C 4.5  0.5 10.0 0.0}
\PYG{g+go}{G 0.0  0.0  0.0 0.0}
\PYG{g+go}{\PYGZlt{}BLANKLINE\PYGZgt{}}
\end{Verbatim}
