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diff --git a/src/blib2to3/pygram.py b/src/blib2to3/pygram.py
deleted file mode 100644
index b8362b8..0000000
--- a/src/blib2to3/pygram.py
+++ /dev/null
@@ -1,197 +0,0 @@
-# Copyright 2006 Google, Inc. All Rights Reserved.
-# Licensed to PSF under a Contributor Agreement.
-
-"""Export the Python grammar and symbols."""
-
-# Python imports
-import os
-
-from typing import Union
-
-# Local imports
-from .pgen2 import token
-from .pgen2 import driver
-
-from .pgen2.grammar import Grammar
-
-# Moved into initialize because mypyc can't handle __file__ (XXX bug)
-# # 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: Grammar) -> None:
-        """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)
-
-
-class _python_symbols(Symbols):
-    and_expr: int
-    and_test: int
-    annassign: int
-    arglist: int
-    argument: int
-    arith_expr: int
-    assert_stmt: int
-    async_funcdef: int
-    async_stmt: int
-    atom: int
-    augassign: int
-    break_stmt: int
-    classdef: int
-    comp_for: int
-    comp_if: int
-    comp_iter: int
-    comp_op: int
-    comparison: int
-    compound_stmt: int
-    continue_stmt: int
-    decorated: int
-    decorator: int
-    decorators: int
-    del_stmt: int
-    dictsetmaker: int
-    dotted_as_name: int
-    dotted_as_names: int
-    dotted_name: int
-    encoding_decl: int
-    eval_input: int
-    except_clause: int
-    exec_stmt: int
-    expr: int
-    expr_stmt: int
-    exprlist: int
-    factor: int
-    file_input: int
-    flow_stmt: int
-    for_stmt: int
-    funcdef: int
-    global_stmt: int
-    if_stmt: int
-    import_as_name: int
-    import_as_names: int
-    import_from: int
-    import_name: int
-    import_stmt: int
-    lambdef: int
-    listmaker: int
-    namedexpr_test: int
-    not_test: int
-    old_comp_for: int
-    old_comp_if: int
-    old_comp_iter: int
-    old_lambdef: int
-    old_test: int
-    or_test: int
-    parameters: int
-    pass_stmt: int
-    power: int
-    print_stmt: int
-    raise_stmt: int
-    return_stmt: int
-    shift_expr: int
-    simple_stmt: int
-    single_input: int
-    sliceop: int
-    small_stmt: int
-    star_expr: int
-    stmt: int
-    subscript: int
-    subscriptlist: int
-    suite: int
-    term: int
-    test: int
-    testlist: int
-    testlist1: int
-    testlist_gexp: int
-    testlist_safe: int
-    testlist_star_expr: int
-    tfpdef: int
-    tfplist: int
-    tname: int
-    trailer: int
-    try_stmt: int
-    typedargslist: int
-    varargslist: int
-    vfpdef: int
-    vfplist: int
-    vname: int
-    while_stmt: int
-    with_item: int
-    with_stmt: int
-    with_var: int
-    xor_expr: int
-    yield_arg: int
-    yield_expr: int
-    yield_stmt: int
-
-
-class _pattern_symbols(Symbols):
-    Alternative: int
-    Alternatives: int
-    Details: int
-    Matcher: int
-    NegatedUnit: int
-    Repeater: int
-    Unit: int
-
-
-python_grammar: Grammar
-python_grammar_no_print_statement: Grammar
-python_grammar_no_print_statement_no_exec_statement: Grammar
-python_grammar_no_print_statement_no_exec_statement_async_keywords: Grammar
-python_grammar_no_exec_statement: Grammar
-pattern_grammar: Grammar
-
-python_symbols: _python_symbols
-pattern_symbols: _pattern_symbols
-
-
-def initialize(cache_dir: Union[str, "os.PathLike[str]", None] = None) -> None:
-    global python_grammar
-    global python_grammar_no_print_statement
-    global python_grammar_no_print_statement_no_exec_statement
-    global python_grammar_no_print_statement_no_exec_statement_async_keywords
-    global python_symbols
-    global pattern_grammar
-    global pattern_symbols
-
-    # 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"
-    )
-
-    # Python 2
-    python_grammar = driver.load_packaged_grammar("blib2to3", _GRAMMAR_FILE, cache_dir)
-
-    python_symbols = _python_symbols(python_grammar)
-
-    # Python 2 + from __future__ import print_function
-    python_grammar_no_print_statement = python_grammar.copy()
-    del python_grammar_no_print_statement.keywords["print"]
-
-    # Python 3.0-3.6
-    python_grammar_no_print_statement_no_exec_statement = python_grammar.copy()
-    del python_grammar_no_print_statement_no_exec_statement.keywords["print"]
-    del python_grammar_no_print_statement_no_exec_statement.keywords["exec"]
-
-    # Python 3.7+
-    python_grammar_no_print_statement_no_exec_statement_async_keywords = (
-        python_grammar_no_print_statement_no_exec_statement.copy()
-    )
-    python_grammar_no_print_statement_no_exec_statement_async_keywords.async_keywords = (
-        True
-    )
-
-    pattern_grammar = driver.load_packaged_grammar(
-        "blib2to3", _PATTERN_GRAMMAR_FILE, cache_dir
-    )
-    pattern_symbols = _pattern_symbols(pattern_grammar)