\begin{Verbatim}[commandchars=\\\{\}]
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{l+s+s2}{\PYGZdq{}GTAC\PYGZdq{}} \PYG{o+ow}{in} \PYG{n}{dna\PYGZus{}seq}
\PYG{g+go}{False}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{l+s+s2}{\PYGZdq{}GTAC\PYGZdq{}} \PYG{o+ow}{in} \PYG{n}{dna\PYGZus{}seq}\PYG{o}{.}\PYG{n}{upper}\PYG{p}{()}
\PYG{g+go}{True}
\end{Verbatim}
