mirror of https://github.com/python/cpython
31 lines
1.1 KiB
TeX
31 lines
1.1 KiB
TeX
\section{\module{symbol} ---
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Constants used with Python parse trees}
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\declaremodule{standard}{symbol}
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\modulesynopsis{Constants representing internal nodes of the parse tree.}
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\sectionauthor{Fred L. Drake, Jr.}{fdrake@acm.org}
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This module provides constants which represent the numeric values of
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internal nodes of the parse tree. Unlike most Python constants, these
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use lower-case names. Refer to the file \file{Grammar/Grammar} in the
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Python distribution for the definitions of the names in the context of
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the language grammar. The specific numeric values which the names map
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to may change between Python versions.
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This module also provides one additional data object:
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\begin{datadesc}{sym_name}
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Dictionary mapping the numeric values of the constants defined in
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this module back to name strings, allowing more human-readable
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representation of parse trees to be generated.
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\end{datadesc}
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\begin{seealso}
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\seemodule{parser}{The second example for the \refmodule{parser}
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module shows how to use the \module{symbol}
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module.}
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\end{seealso}
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