content: # Copyright 2006 Google, Inc. All Rights Reserved.
  # Licensed to PSF under a Contributor Agreement.
  """Export the Python grammar and symbols."""
  
  # Python imports
  import os
  
  # Local imports
  from .pgen2 import driver
  
  # The grammar file
  _GRAMMAR_FILE = os.path.join(os.path.dirname(__file__), 'Grammar.txt')
  _PATTERN_GRAMMAR_FILE = os.path.join(
      os.path.dirname(__file__), 'PatternGrammar.txt')
  
  
  class Symbols(object):
  
    def __init__(self, grammar):
      """Initializer.
  
          Creates an attribute for each grammar symbol (nonterminal),
          whose value is the symbol's type (an int >= 256).
          """
      for name, symbol in grammar.symbol2number.items():
        setattr(self, name, symbol)
  
  
  python_grammar = driver.load_grammar(_GRAMMAR_FILE)
  
  python_symbols = Symbols(python_grammar)
  
  python_grammar_no_print_statement = python_grammar.copy()
  del python_grammar_no_print_statement.keywords['print']
  
  python_grammar_no_print_and_exec_statement = python_grammar_no_print_statement.copy()  # yapf: disable # noqa: E501
  del python_grammar_no_print_and_exec_statement.keywords['exec']
  
  pattern_grammar = driver.load_grammar(_PATTERN_GRAMMAR_FILE)
  pattern_symbols = Symbols(pattern_grammar)
  