\end{datadesc}
-\subsection{Codec Base Classes}
+\subsection{Codec Base Classes \label{codec-base-classes}}
The \module{codecs} module defines a set of base classes which define the
interface and can also be used to easily write you own codecs for use
\code{'strict'}, meaning that encoding errors raise
\exception{UnicodeError}. Other possible values are \code{'ignore'},
\code{'replace'} and any other name registered via
-\function{codecs.register_error}.
+\function{codecs.register_error}, see section~\ref{codec-base-classes}.
\versionadded{2.2}
\versionchanged[Support for other error handling schemes added]{2.3}
\end{methoddesc}
\code{'strict'}, meaning that encoding errors raise a
\exception{UnicodeError}. Other possible values are \code{'ignore'},
\code{'replace'}, \code{'xmlcharrefreplace'}, \code{'backslashreplace'}
-and any other name registered via \function{codecs.register_error}.
+and any other name registered via \function{codecs.register_error},
+see section~\ref{codec-base-classes}.
For a list of possible encodings, see section~\ref{standard-encodings}.
\versionadded{2.0}
\versionchanged[Support for \code{'xmlcharrefreplace'} and