\begin{Verbatim}[commandchars=\\\{\}]
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{k+kn}{from} \PYG{n+nn}{Bio} \PYG{k+kn}{import} \PYG{n}{SeqIO}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{orchid\PYGZus{}dict} \PYG{o}{=} \PYG{n}{SeqIO}\PYG{o}{.}\PYG{n}{index}\PYG{p}{(}\PYG{l+s+s2}{\PYGZdq{}ls\PYGZus{}orchid.fasta\PYGZdq{}}\PYG{p}{,} \PYG{l+s+s2}{\PYGZdq{}fasta\PYGZdq{}}\PYG{p}{,} \PYG{n}{key\PYGZus{}function}\PYG{o}{=}\PYG{n}{get\PYGZus{}acc}\PYG{p}{)}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{k}{print}\PYG{p}{(}\PYG{n}{orchid\PYGZus{}dict}\PYG{o}{.}\PYG{n}{keys}\PYG{p}{())}
\PYG{g+go}{[\PYGZsq{}Z78484.1\PYGZsq{}, \PYGZsq{}Z78464.1\PYGZsq{}, \PYGZsq{}Z78455.1\PYGZsq{}, \PYGZsq{}Z78442.1\PYGZsq{}, \PYGZsq{}Z78532.1\PYGZsq{}, \PYGZsq{}Z78453.1\PYGZsq{}, ..., \PYGZsq{}Z78471.1\PYGZsq{}]}
\end{Verbatim}
