\begin{Verbatim}[commandchars=\\\{\}]
\PYG{g+go}{\PYGZsh{} Using C\PYGZhy{}N}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{ppb}\PYG{o}{=}\PYG{n}{PPBuilder}\PYG{p}{()}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{k}{for} \PYG{n}{pp} \PYG{o+ow}{in} \PYG{n}{ppb}\PYG{o}{.}\PYG{n}{build\PYGZus{}peptides}\PYG{p}{(}\PYG{n}{structure}\PYG{p}{):}
\PYG{g+gp}{... }    \PYG{n+nb}{print}\PYG{p}{(}\PYG{n}{pp}\PYG{o}{.}\PYG{n}{get\PYGZus{}sequence}\PYG{p}{())}
\PYG{g+gp}{...}
\PYG{g+go}{\PYGZsh{} Using CA\PYGZhy{}CA}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{n}{ppb}\PYG{o}{=}\PYG{n}{CaPPBuilder}\PYG{p}{()}
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{k}{for} \PYG{n}{pp} \PYG{o+ow}{in} \PYG{n}{ppb}\PYG{o}{.}\PYG{n}{build\PYGZus{}peptides}\PYG{p}{(}\PYG{n}{structure}\PYG{p}{):}
\PYG{g+gp}{... }    \PYG{n+nb}{print}\PYG{p}{(}\PYG{n}{pp}\PYG{o}{.}\PYG{n}{get\PYGZus{}sequence}\PYG{p}{())}
\PYG{g+gp}{...}
\end{Verbatim}
