gh-120417: Remove unused imports in the stdlib (#120420)

Author: vstinner

Lib/_pyrepl/historical_reader.py

@@ -27,7 +27,7 @@
 
 
 if False:
-    from .types import Callback, SimpleContextManager, KeySpec, CommandName
+    from .types import SimpleContextManager, KeySpec, CommandName
 
 
 isearch_keymap: tuple[tuple[KeySpec, CommandName], ...] = tuple(

Lib/_pyrepl/pager.py

@@ -8,7 +8,7 @@
 
 # types
 if False:
-    from typing import Protocol, Any
+    from typing import Protocol
     class Pager(Protocol):
         def __call__(self, text: str, title: str = "") -> None:
             ...

Lib/_pyrepl/unix_console.py

@@ -27,7 +27,6 @@
 import select
 import signal
 import struct
-import sys
 import termios
 import time
 from fcntl import ioctl

Lib/_pyrepl/windows_console.py

@@ -20,15 +20,12 @@
 from __future__ import annotations
 
 import io
-from multiprocessing import Value
 import os
 import sys
 import time
 import msvcrt
 
-from abc import ABC, abstractmethod
 from collections import deque
-from dataclasses import dataclass, field
 import ctypes
 from ctypes.wintypes import (
     _COORD,

Lib/dataclasses.py

@@ -7,7 +7,6 @@
 import itertools
 import abc
 from reprlib import recursive_repr
-from types import FunctionType, GenericAlias
 
 
 __all__ = ['dataclass',
@@ -333,7 +332,7 @@ def __set_name__(self, owner, name):
             # it.
             func(self.default, owner, name)
 
-    __class_getitem__ = classmethod(GenericAlias)
+    __class_getitem__ = classmethod(types.GenericAlias)
 
 
 class _DataclassParams:

Lib/dbm/sqlite3.py

@@ -1,6 +1,5 @@
 import os
 import sqlite3
-import sys
 from pathlib import Path
 from contextlib import suppress, closing
 from collections.abc import MutableMapping

Lib/idlelib/grep.py

@@ -190,7 +190,7 @@ def grep_it(self, prog, path):
 
 
 def _grep_dialog(parent):  # htest #
-    from tkinter import Toplevel, Text, SEL, END
+    from tkinter import Toplevel, Text, SEL
     from tkinter.ttk import Frame, Button
     from idlelib.pyshell import PyShellFileList
 

Lib/importlib/abc.py

@@ -13,7 +13,6 @@
     _frozen_importlib_external = _bootstrap_external
 from ._abc import Loader
 import abc
-import warnings
 
 
 __all__ = [

Lib/ntpath.py

@@ -19,7 +19,6 @@
 
 import os
 import sys
-import stat
 import genericpath
 from genericpath import *
 

Lib/pydoc.py

@@ -75,7 +75,7 @@ class or function within a module or module in a package.  If the
 from reprlib import Repr
 from traceback import format_exception_only
 
-from _pyrepl.pager import (get_pager, plain, escape_less, pipe_pager,
+from _pyrepl.pager import (get_pager, plain, pipe_pager,
                            plain_pager, tempfile_pager, tty_pager)