clean imports based on pyright output, with script

import sys

for line in sys.stdin:
    filename, lineno, _, message = line.split(":")
    filename = filename.strip()
    lineno = int(lineno) - 1
    to_remove = message.split('"')[1]
    lines = open(filename).readlines()
    if lines[lineno].count(to_remove) == 1:
        lines[lineno] = lines[lineno].replace(to_remove + ",", "")
        lines[lineno] = lines[lineno].replace(to_remove, "")
    open(filename, "w").writelines(lines)

Author: Akuli

stdlib/_codecs.pyi

@@ -1,6 +1,6 @@
 import codecs
 import sys
-from typing import Any, Callable, Dict, Tuple, Union
+from typing import Any, Callable, Dict, Tuple, 
 
 # This type is not exposed; it is defined in unicodeobject.c
 class _EncodingMap:

stdlib/_csv.pyi

@@ -1,4 +1,4 @@
-from typing import Any, Iterable, Iterator, List, Protocol, Type, Union
+from typing import Any, Iterable, Iterator, List, Protocol, Type, 
 
 QUOTE_ALL: int
 QUOTE_MINIMAL: int

stdlib/_curses.pyi

@@ -1,5 +1,5 @@
 import sys
-from typing import IO, Any, BinaryIO, NamedTuple, Union, overload
+from typing import IO, Any, BinaryIO, NamedTuple,  overload
 
 _chtype = str | bytes | int
 

stdlib/_dummy_threading.pyi

@@ -1,6 +1,6 @@
 import sys
 from types import FrameType, TracebackType
-from typing import Any, Callable, Iterable, Mapping, Optional, Type, TypeVar
+from typing import Any, Callable, Iterable, Mapping,  Type, TypeVar
 
 # TODO recursive type
 _TF = Callable[[FrameType, str, Any], Callable[..., Any] | None]

stdlib/_socket.pyi

@@ -1,7 +1,7 @@
 import sys
 from _typeshed import ReadableBuffer, WriteableBuffer
 from collections.abc import Iterable
-from typing import Any, SupportsInt, Tuple, Union, overload
+from typing import Any, SupportsInt, Tuple,  overload
 
 if sys.version_info >= (3, 8):
     from typing import SupportsIndex

stdlib/_thread.pyi

@@ -1,7 +1,7 @@
 import sys
 from threading import Thread
 from types import TracebackType
-from typing import Any, Callable, NoReturn, Optional, Tuple, Type
+from typing import Any, Callable, NoReturn,  Tuple, Type
 from typing_extensions import final
 
 error = RuntimeError

stdlib/_typeshed/__init__.pyi

@@ -7,7 +7,7 @@ import ctypes
 import mmap
 import sys
 from os import PathLike
-from typing import AbstractSet, Any, Awaitable, Container, Iterable, Protocol, TypeVar, Union
+from typing import AbstractSet, Any, Awaitable, Container, Iterable, Protocol, TypeVar, 
 from typing_extensions import Literal, final
 
 _KT = TypeVar("_KT")

stdlib/aifc.pyi

@@ -1,7 +1,7 @@
 import sys
 from _typeshed import Self
 from types import TracebackType
-from typing import IO, Any, NamedTuple, Tuple, Type, Union, overload
+from typing import IO, Any, NamedTuple, Tuple, Type,  overload
 from typing_extensions import Literal
 
 class Error(Exception): ...

stdlib/array.pyi

@@ -1,5 +1,5 @@
 import sys
-from typing import Any, BinaryIO, Generic, Iterable, MutableSequence, TypeVar, Union, overload
+from typing import Any, BinaryIO, Generic, Iterable, MutableSequence, TypeVar,  overload
 from typing_extensions import Literal, SupportsIndex
 
 _IntTypeCode = Literal["b", "B", "h", "H", "i", "I", "l", "L", "q", "Q"]

stdlib/asyncio/base_events.pyi

@@ -9,7 +9,7 @@ from asyncio.tasks import Task
 from asyncio.transports import BaseTransport
 from collections.abc import Iterable
 from socket import AddressFamily, SocketKind, _Address, _RetAddress, socket
-from typing import IO, Any, Awaitable, Callable, Dict, Generator, Sequence, Tuple, TypeVar, Union, overload
+from typing import IO, Any, Awaitable, Callable, Dict, Generator, Sequence, Tuple, TypeVar,  overload
 from typing_extensions import Literal
 
 if sys.version_info >= (3, 7):