- DuplicateSectionError is only raised by add_section()
(closes SF bug #830449)
\end{excdesc}
\begin{excdesc}{DuplicateSectionError}
-Exception raised when multiple sections with the same name are found,
-or if \method{add_section()} is called with the name of a section that
-is already present.
+Exception raised if \method{add_section()} is called with the name of
+a section that is already present.
\end{excdesc}
\begin{excdesc}{NoOptionError}