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+\section{Standard Module \sectcode{symbol}}
+\label{module-symbol}
+\stmodindex{symbol}
+
+This module provides constants which represent the numeric values of
+internal nodes of the parse tree.  Unlike most Python constants, these
+use lower-case names.  Refer to the file \file{Grammar/Grammar} in the
+Python distribution for the defintions of the names in the context of
+the language grammar.  The specific numeric values which the names map
+to may change between Python versions.
+
+This module also provides one additional data object:
+
+\setindexsubitem{(in module symbol)}
+
+
+\begin{datadesc}{sym_name}
+Dictionary mapping the numeric values of the constants defined in this
+module back to name strings, allowing more human-readable
+representation of parse trees to be generated.
+\end{datadesc}
+
+\begin{seealso}
+\seemodule{parser}{second example uses this module}
+\end{seealso}