\begin{Verbatim}[commandchars=\\\{\}]
\PYG{k+kn}{from} \PYG{n+nn}{Bio} \PYG{k+kn}{import} \PYG{n}{SeqIO}
\PYG{k+kn}{from} \PYG{n+nn}{Bio.SeqUtils} \PYG{k+kn}{import} \PYG{n}{GC}

\PYG{n}{gc\PYGZus{}values} \PYG{o}{=} \PYG{n+nb}{sorted}\PYG{p}{(}\PYG{n}{GC}\PYG{p}{(}\PYG{n}{rec}\PYG{o}{.}\PYG{n}{seq}\PYG{p}{)} \PYG{k}{for} \PYG{n}{rec} \PYG{o+ow}{in} \PYG{n}{SeqIO}\PYG{o}{.}\PYG{n}{parse}\PYG{p}{(}\PYG{l+s+s2}{\PYGZdq{}ls\PYGZus{}orchid.fasta\PYGZdq{}}\PYG{p}{,} \PYG{l+s+s2}{\PYGZdq{}fasta\PYGZdq{}}\PYG{p}{))}
\end{Verbatim}
