Remove several unused TypeVars (#6829)

stdlib/bz2.pyi

@@ -2,7 +2,7 @@ import _compression
 import sys
 from _compression import BaseStream
 from _typeshed import ReadableBuffer, Self, StrOrBytesPath, WriteableBuffer
-from typing import IO, Any, Iterable, Protocol, TextIO, TypeVar, overload
+from typing import IO, Any, Iterable, Protocol, TextIO, overload
 from typing_extensions import Literal, SupportsIndex, final
 
 # The following attributes and methods are optional:
@@ -16,8 +16,6 @@ class _WritableFileobj(Protocol):
     # def fileno(self) -> int: ...
     # def close(self) -> object: ...
 
-_T = TypeVar("_T")
-
 def compress(data: bytes, compresslevel: int = ...) -> bytes: ...
 def decompress(data: bytes) -> bytes: ...
 

stdlib/imp.pyi

@@ -1,7 +1,7 @@
 import types
 from _typeshed import StrPath
 from os import PathLike
-from typing import IO, Any, Protocol, TypeVar
+from typing import IO, Any, Protocol
 
 from _imp import (
     acquire_lock as acquire_lock,
@@ -15,8 +15,6 @@ from _imp import (
     release_lock as release_lock,
 )
 
-_T = TypeVar("_T")
-
 SEARCH_ERROR: int
 PY_SOURCE: int
 PY_COMPILED: int

stdlib/multiprocessing/pool.pyi

@@ -9,7 +9,6 @@ if sys.version_info >= (3, 9):
 
 __all__ = ["Pool", "ThreadPool"]
 
-_PT = TypeVar("_PT", bound=Pool)
 _S = TypeVar("_S")
 _T = TypeVar("_T")
 

stdlib/socketserver.pyi

@@ -2,9 +2,8 @@ import sys
 import types
 from _typeshed import Self
 from socket import socket as _socket
-from typing import Any, BinaryIO, Callable, ClassVar, Type, TypeVar, Union
+from typing import Any, BinaryIO, Callable, ClassVar, Type, Union
 
-_T = TypeVar("_T")
 _RequestType = Union[_socket, tuple[bytes, _socket]]
 _AddressType = Union[tuple[str, int], str]
 

stdlib/types.pyi

@@ -25,7 +25,6 @@ from typing_extensions import Literal, ParamSpec, final
 
 # Note, all classes "defined" here require special handling.
 
-_T = TypeVar("_T")
 _T1 = TypeVar("_T1")
 _T2 = TypeVar("_T2")
 _T_co = TypeVar("_T_co", covariant=True)

stdlib/weakref.pyi

@@ -11,7 +11,6 @@ from _weakref import (
     ref as ref,
 )
 
-_S = TypeVar("_S")
 _T = TypeVar("_T")
 _KT = TypeVar("_KT")
 _VT = TypeVar("_VT")

stubs/redis/redis/client.pyi

@@ -23,8 +23,6 @@ from .connection import ConnectionPool
 from .lock import Lock
 from .retry import Retry
 
-_ScoreCastFuncReturn = TypeVar("_ScoreCastFuncReturn")
-
 _Value = Union[bytes, float, int, str]
 _Key = Union[str, bytes]