\begin{Verbatim}[commandchars=\\\{\}]
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{m} \PYG{o}{+=} \PYG{n}{m}\PYG{o}{.}\PYG{n}{transpose}\PYG{p}{()}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{m} \PYG{o}{/=} \PYG{l+m+mf}{2.0}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n+nb}{print}\PYG{p}{(}\PYG{n}{m}\PYG{p}{)}
\PYG{g+go}{    A   C   G   T}
\PYG{g+go}{A 7.0 0.0 0.0 0.5}
\PYG{g+go}{C 0.0 7.0 1.0 0.5}
\PYG{g+go}{G 0.0 1.0 6.0 0.5}
\PYG{g+go}{T 0.5 0.5 0.5 6.0}
\PYG{g+go}{\PYGZlt{}BLANKLINE\PYGZgt{}}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{m}\PYG{p}{[}\PYG{l+s+s1}{\PYGZsq{}G\PYGZsq{}}\PYG{p}{,} \PYG{l+s+s1}{\PYGZsq{}C\PYGZsq{}}\PYG{p}{]}
\PYG{g+go}{1.0}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{m}\PYG{p}{[}\PYG{l+s+s1}{\PYGZsq{}C\PYGZsq{}}\PYG{p}{,} \PYG{l+s+s1}{\PYGZsq{}G\PYGZsq{}}\PYG{p}{]}
\PYG{g+go}{1.0}
\end{Verbatim}
