Clean up unused imports for the peg generator module (GH-19891)

5 files changed, 4 insertions, 9 deletions

diff --git a/Tools/peg_generator/pegen/build.py b/Tools/peg_generator/pegen/build.py
index 8f9348d..931ffc7 100644
--- a/Tools/peg_generator/pegen/build.py
+++ b/Tools/peg_generator/pegen/build.py
@@ -1,12 +1,11 @@
 import pathlib
 import shutil
 import tokenize
-import sys
 import sysconfig
 import tempfile
 import itertools
 
-from typing import Optional, Tuple, List, IO, Iterator, Set, Dict
+from typing import Optional, Tuple, List, IO, Set, Dict
 
 from pegen.c_generator import CParserGenerator
 from pegen.grammar import Grammar
diff --git a/Tools/peg_generator/pegen/c_generator.py b/Tools/peg_generator/pegen/c_generator.py
index c9c6706..40004e7 100644
--- a/Tools/peg_generator/pegen/c_generator.py
+++ b/Tools/peg_generator/pegen/c_generator.py
@@ -1,7 +1,7 @@
 import ast
 from dataclasses import dataclass, field
 import re
-from typing import IO, Any, Dict, List, Optional, Set, Text, Tuple
+from typing import Any, Dict, IO, Optional, List, Text, Tuple, Set
 from enum import Enum
 
 from pegen import grammar
diff --git a/Tools/peg_generator/pegen/first_sets.py b/Tools/peg_generator/pegen/first_sets.py
index da30eba..71be5a2 100755
--- a/Tools/peg_generator/pegen/first_sets.py
+++ b/Tools/peg_generator/pegen/first_sets.py
@@ -1,10 +1,9 @@
 #!/usr/bin/env python3.8
 
 import argparse
-import collections
 import pprint
 import sys
-from typing import Optional, Set, Dict
+from typing import Set, Dict
 
 from pegen.build import build_parser
 from pegen.grammar import (
diff --git a/Tools/peg_generator/pegen/grammar.py b/Tools/peg_generator/pegen/grammar.py
index 67039d5..78edf41 100644
--- a/Tools/peg_generator/pegen/grammar.py
+++ b/Tools/peg_generator/pegen/grammar.py
@@ -4,7 +4,6 @@ from abc import abstractmethod
 from typing import (
     AbstractSet,
     Any,
-    Callable,
     Dict,
     Iterable,
     Iterator,
@@ -13,11 +12,9 @@ from typing import (
     Set,
     Tuple,
     TYPE_CHECKING,
-    TypeVar,
     Union,
 )
 
-from pegen.parser import memoize, Parser
 
 if TYPE_CHECKING:
     from pegen.parser_generator import ParserGenerator
diff --git a/Tools/peg_generator/pegen/grammar_visualizer.py b/Tools/peg_generator/pegen/grammar_visualizer.py
index b1d51d2..7362ec5 100644
--- a/Tools/peg_generator/pegen/grammar_visualizer.py
+++ b/Tools/peg_generator/pegen/grammar_visualizer.py
@@ -1,7 +1,7 @@
 import argparse
 import sys
 
-from typing import Any, Iterator, Iterable, Callable
+from typing import Any, Iterator, Callable
 
 from pegen.build import build_parser
 from pegen.grammar import Grammar, Rule