unicode(): Added \versionadded{} annotations.
\code{u'a'}. This is the inverse of \function{ord()} for Unicode
strings. The argument must be in the range [0..65535], inclusive.
\exception{ValueError} is raised otherwise.
+\versionadded{1.6}
\end{funcdesc}
\begin{funcdesc}{unicode}{string\optional{, encoding='utf-8'\optional{, errors='strict'}}}
handling is done according to \var{errors}. The default behavior is
to decode UTF-8 in strict mode, meaning that encoding errors raise
\exception{ValueError}.
+\versionadded{1.6}
\end{funcdesc}
\begin{funcdesc}{vars}{\optional{object}}