\begin{Verbatim}[commandchars=\\\{\}]
\PYG{g+gp}{\PYGZgt{}\PYGZgt{}\PYGZgt{} }\PYG{k}{for} \PYG{n}{model} \PYG{o+ow}{in} \PYG{n}{structure}\PYG{o}{.}\PYG{n}{get\PYGZus{}list}\PYG{p}{():}
\PYG{g+gp}{... }    \PYG{k}{for} \PYG{n}{chain} \PYG{o+ow}{in} \PYG{n}{model}\PYG{o}{.}\PYG{n}{get\PYGZus{}list}\PYG{p}{():}
\PYG{g+gp}{... }        \PYG{k}{for} \PYG{n}{residue} \PYG{o+ow}{in} \PYG{n}{chain}\PYG{o}{.}\PYG{n}{get\PYGZus{}list}\PYG{p}{():}
\PYG{g+gp}{... }            \PYG{k}{if} \PYG{n}{residue}\PYG{o}{.}\PYG{n}{has\PYGZus{}id}\PYG{p}{(}\PYG{l+s+s2}{\PYGZdq{}CA\PYGZdq{}}\PYG{p}{):}
\PYG{g+gp}{... }                \PYG{n}{ca} \PYG{o}{=} \PYG{n}{residue}\PYG{p}{[}\PYG{l+s+s2}{\PYGZdq{}CA\PYGZdq{}}\PYG{p}{]}
\PYG{g+gp}{... }                \PYG{k}{if} \PYG{n}{ca}\PYG{o}{.}\PYG{n}{get\PYGZus{}bfactor}\PYG{p}{()} \PYG{o}{\PYGZgt{}} \PYG{l+m+mf}{50.0}\PYG{p}{:}
\PYG{g+gp}{... }                    \PYG{n+nb}{print}\PYG{p}{(}\PYG{n}{ca}\PYG{o}{.}\PYG{n}{get\PYGZus{}coord}\PYG{p}{())}
\PYG{g+gp}{...}
\end{Verbatim}
