This is the full Python grammar, derived directly from the grammar used to generate the CPython parser (see :source:`Grammar/python.gram`). The version here omits details related to code generation and error recovery.
The notation is a mixture of EBNF
and PEG.
In particular, & followed by a symbol, token or parenthesized
group indicates a positive lookahead (i.e., is required to match but
not consumed), while ! indicates a negative lookahead (i.e., is
required not to match). We use the | separator to mean PEG's
"ordered choice" (written as / in traditional PEG grammars). See
PEP 617 for more details on the grammar's syntax.
.. literalinclude:: ../../Grammar/python.gram :language: peg