\begin{Verbatim}[commandchars=\\\{\}]
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{counts}\PYG{p}{[}\PYG{l+s+s1}{\PYGZsq{}C\PYGZsq{}}\PYG{p}{]} \PYG{o}{=} \PYG{o}{\PYGZhy{}}\PYG{l+m+mi}{3}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{counts}\PYG{p}{[}\PYG{l+m+mi}{2}\PYG{p}{]} \PYG{o}{=} \PYG{l+m+mi}{7}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{k}{print}\PYG{p}{(}\PYG{n}{counts}\PYG{p}{)}
\PYG{g+go}{A  0.0}
\PYG{g+go}{C \PYGZhy{}3.0}
\PYG{g+go}{G  7.0}
\PYG{g+go}{T  0.0}
\PYG{g+go}{\PYGZlt{}BLANKLINE\PYGZgt{}}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{counts}\PYG{p}{[}\PYG{l+m+mi}{1}\PYG{p}{]}
\PYG{g+go}{\PYGZhy{}3.0}
\end{Verbatim}
