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📁 ..
📄 Grammar.txt(8.49 KB)
📄 Grammar3.9.21.final.0.pickle(14.95 KB)
📄 PatternGrammar.txt(793 B)
📄 PatternGrammar3.9.21.final.0.pickle(1.2 KB)
📄 __init__.py(163 B)
📄 __main__.py(67 B)
📁 __pycache__
📄 btm_matcher.py(6.47 KB)
📄 btm_utils.py(9.73 KB)
📄 fixer_base.py(6.53 KB)
📄 fixer_util.py(14.85 KB)
📁 fixes
📄 main.py(11.58 KB)
📄 patcomp.py(6.89 KB)
📁 pgen2
📄 pygram.py(1.27 KB)
📄 pytree.py(27.32 KB)
📄 refactor.py(26.86 KB)

Editing: pygram.py

# 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 token
from .pgen2 import driver
from . import pytree

# 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_packaged_grammar("lib2to3", _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()
del python_grammar_no_print_and_exec_statement.keywords["exec"]

pattern_grammar = driver.load_packaged_grammar("lib2to3", _PATTERN_GRAMMAR_FILE)
pattern_symbols = Symbols(pattern_grammar)

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Editing: pygram.py

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