diff --git a/Tools/cases_generator/analyzer.py b/Tools/cases_generator/analyzer.py
index e44bebd8f3c..96e2fd57c74 100644
--- a/Tools/cases_generator/analyzer.py
+++ b/Tools/cases_generator/analyzer.py
@@ -1,4 +1,4 @@
-from dataclasses import dataclass, field
+from dataclasses import dataclass
 import lexer
 import parser
 import re
diff --git a/Tools/cases_generator/generators_common.py b/Tools/cases_generator/generators_common.py
index cc9eb8a0e90..efbfc94b415 100644
--- a/Tools/cases_generator/generators_common.py
+++ b/Tools/cases_generator/generators_common.py
@@ -4,14 +4,12 @@ from typing import TextIO
 from analyzer import (
     Instruction,
     Uop,
-    analyze_files,
     Properties,
-    Skip,
 )
 from cwriter import CWriter
 from typing import Callable, Mapping, TextIO, Iterator
 from lexer import Token
-from stack import StackOffset, Stack
+from stack import Stack
 
 
 ROOT = Path(__file__).parent.parent.parent
diff --git a/Tools/cases_generator/opcode_id_generator.py b/Tools/cases_generator/opcode_id_generator.py
index 5a3009a5c04..7932379b02d 100644
--- a/Tools/cases_generator/opcode_id_generator.py
+++ b/Tools/cases_generator/opcode_id_generator.py
@@ -4,12 +4,9 @@ Writes the IDs to opcode_ids.h by default.
 """
 
 import argparse
-import os.path
-import sys
 
 from analyzer import (
     Analysis,
-    Instruction,
     analyze_files,
 )
 from generators_common import (
diff --git a/Tools/cases_generator/opcode_metadata_generator.py b/Tools/cases_generator/opcode_metadata_generator.py
index 2632eb89ce8..0f5790dc4af 100644
--- a/Tools/cases_generator/opcode_metadata_generator.py
+++ b/Tools/cases_generator/opcode_metadata_generator.py
@@ -4,15 +4,12 @@ Writes the metadata to pycore_opcode_metadata.h by default.
 """
 
 import argparse
-import os.path
-import sys
 
 from analyzer import (
     Analysis,
     Instruction,
     PseudoInstruction,
     analyze_files,
-    Skip,
     Uop,
 )
 from generators_common import (
@@ -20,7 +17,6 @@ from generators_common import (
     ROOT,
     write_header,
     cflags,
-    StackOffset,
 )
 from cwriter import CWriter
 from typing import TextIO
diff --git a/Tools/cases_generator/optimizer_generator.py b/Tools/cases_generator/optimizer_generator.py
index d5592672a55..fb3e577de73 100644
--- a/Tools/cases_generator/optimizer_generator.py
+++ b/Tools/cases_generator/optimizer_generator.py
@@ -18,13 +18,12 @@ from generators_common import (
     ROOT,
     write_header,
     emit_tokens,
-    emit_to,
     replace_sync_sp,
 )
 from cwriter import CWriter
 from typing import TextIO, Iterator
 from lexer import Token
-from stack import Stack, SizeMismatch, UNUSED
+from stack import Stack, SizeMismatch
 
 DEFAULT_OUTPUT = ROOT / "Python/optimizer_cases.c.h"
 DEFAULT_ABSTRACT_INPUT = (ROOT / "Python/optimizer_bytecodes.c").absolute().as_posix()
diff --git a/Tools/cases_generator/parser.py b/Tools/cases_generator/parser.py
index 2b77d14d211..db672ad5501 100644
--- a/Tools/cases_generator/parser.py
+++ b/Tools/cases_generator/parser.py
@@ -1,4 +1,4 @@
-from parsing import (
+from parsing import (  # noqa: F401
     InstDef,
     Macro,
     Pseudo,
diff --git a/Tools/cases_generator/py_metadata_generator.py b/Tools/cases_generator/py_metadata_generator.py
index 0dbcd599f9d..3f7ffbc5523 100644
--- a/Tools/cases_generator/py_metadata_generator.py
+++ b/Tools/cases_generator/py_metadata_generator.py
@@ -12,7 +12,6 @@ from analyzer import (
 from generators_common import (
     DEFAULT_INPUT,
     ROOT,
-    root_relative_path,
     write_header,
 )
 from cwriter import CWriter
diff --git a/Tools/cases_generator/target_generator.py b/Tools/cases_generator/target_generator.py
index 44a699c92bb..7f610bff629 100644
--- a/Tools/cases_generator/target_generator.py
+++ b/Tools/cases_generator/target_generator.py
@@ -14,7 +14,6 @@ from generators_common import (
     ROOT,
 )
 from cwriter import CWriter
-from typing import TextIO
 
 
 DEFAULT_OUTPUT = ROOT / "Python/opcode_targets.h"
diff --git a/Tools/cases_generator/tier1_generator.py b/Tools/cases_generator/tier1_generator.py
index fb2ab931b1c..5df4413e833 100644
--- a/Tools/cases_generator/tier1_generator.py
+++ b/Tools/cases_generator/tier1_generator.py
@@ -4,8 +4,6 @@ Writes the cases to generated_cases.c.h, which is #included in ceval.c.
 """
 
 import argparse
-import os.path
-import sys
 
 from analyzer import (
     Analysis,
@@ -14,7 +12,6 @@ from analyzer import (
     Part,
     analyze_files,
     Skip,
-    StackItem,
     analysis_error,
 )
 from generators_common import (
@@ -24,9 +21,8 @@ from generators_common import (
     emit_tokens,
 )
 from cwriter import CWriter
-from typing import TextIO, Iterator
-from lexer import Token
-from stack import StackOffset, Stack, SizeMismatch
+from typing import TextIO
+from stack import Stack, SizeMismatch
 
 
 DEFAULT_OUTPUT = ROOT / "Python/generated_cases.c.h"
diff --git a/Tools/cases_generator/tier2_generator.py b/Tools/cases_generator/tier2_generator.py
index 944d134f12a..a091870489f 100644
--- a/Tools/cases_generator/tier2_generator.py
+++ b/Tools/cases_generator/tier2_generator.py
@@ -4,16 +4,12 @@ Writes the cases to executor_cases.c.h, which is #included in ceval.c.
 """
 
 import argparse
-import os.path
-import sys
 
 from analyzer import (
     Analysis,
     Instruction,
     Uop,
-    Part,
     analyze_files,
-    Skip,
     StackItem,
     analysis_error,
 )
@@ -28,7 +24,7 @@ from generators_common import (
 from cwriter import CWriter
 from typing import TextIO, Iterator
 from lexer import Token
-from stack import StackOffset, Stack, SizeMismatch
+from stack import Stack, SizeMismatch
 
 DEFAULT_OUTPUT = ROOT / "Python/executor_cases.c.h"
 
diff --git a/Tools/cases_generator/uop_id_generator.py b/Tools/cases_generator/uop_id_generator.py
index eb5e3f4a324..aae89faaa92 100644
--- a/Tools/cases_generator/uop_id_generator.py
+++ b/Tools/cases_generator/uop_id_generator.py
@@ -4,12 +4,9 @@ Writes the IDs to pycore_uop_ids.h by default.
 """
 
 import argparse
-import os.path
-import sys
 
 from analyzer import (
     Analysis,
-    Instruction,
     analyze_files,
 )
 from generators_common import (