Removed imported symbols that are not accessed or re-exported (#4387)

Co-authored-by: Eric Traut <erictr@microsoft.com>

stdlib/3/asyncio/locks.pyi

@@ -1,9 +1,8 @@
 import sys
 from types import TracebackType
-from typing import Any, Awaitable, Callable, Generator, Iterable, Optional, Type, TypeVar, Union
+from typing import Any, Awaitable, Callable, Generator, Optional, Type, TypeVar, Union
 
 from .events import AbstractEventLoop
-from .futures import Future
 
 _T = TypeVar("_T")
 

stdlib/3/asyncio/protocols.pyi

@@ -1,6 +1,6 @@
 import sys
 from asyncio import transports
-from typing import Optional, Tuple, Union
+from typing import Optional, Tuple
 
 class BaseProtocol:
     def connection_made(self, transport: transports.BaseTransport) -> None: ...

stdlib/3/collections/__init__.pyi

@@ -1,4 +1,3 @@
-# These are not exported.
 import sys
 import typing
 from typing import (
@@ -37,9 +36,6 @@ from typing import (
     overload,
 )
 
-# These are exported.
-from . import abc
-
 if sys.version_info >= (3, 6):
     from typing import AsyncGenerator as AsyncGenerator, Collection as Collection
 

stdlib/3/dbm/__init__.pyi

@@ -1,4 +1,3 @@
-import sys
 from types import TracebackType
 from typing import Iterator, MutableMapping, Optional, Type, Union
 from typing_extensions import Literal

stdlib/3/dbm/dumb.pyi

@@ -1,12 +1,6 @@
-import sys
 from types import TracebackType
 from typing import Iterator, MutableMapping, Optional, Type, Union
 
-if sys.version_info >= (3, 8):
-    from typing import Final
-else:
-    from typing_extensions import Final
-
 _KeyType = Union[str, bytes]
 _ValueType = Union[str, bytes]
 

stdlib/3/dbm/gnu.pyi

@@ -1,5 +1,5 @@
 from types import TracebackType
-from typing import Generic, Iterator, List, Optional, Type, TypeVar, Union, overload
+from typing import List, Optional, Type, TypeVar, Union, overload
 
 _T = TypeVar("_T")
 _KeyType = Union[str, bytes]

stdlib/3/dbm/ndbm.pyi

@@ -1,5 +1,5 @@
 from types import TracebackType
-from typing import Generic, Iterator, List, Optional, Type, TypeVar, Union, overload
+from typing import List, Optional, Type, TypeVar, Union, overload
 
 _T = TypeVar("_T")
 _KeyType = Union[str, bytes]

stdlib/3/email/message.pyi

@@ -3,7 +3,6 @@
 from email.charset import Charset
 from email.contentmanager import ContentManager
 from email.errors import MessageDefect
-from email.header import Header
 from email.policy import Policy
 from typing import Any, Generator, Iterator, List, Optional, Sequence, Tuple, TypeVar, Union
 

stdlib/3/gettext.pyi

@@ -1,6 +1,6 @@
 import sys
 from _typeshed import StrPath
-from typing import IO, Any, Container, Iterable, Optional, Sequence, Type, TypeVar, Union, overload
+from typing import IO, Any, Container, Iterable, Optional, Sequence, Type, TypeVar, overload
 from typing_extensions import Literal
 
 class NullTranslations:

stdlib/3/hashlib.pyi

@@ -2,7 +2,7 @@
 
 import sys
 from _typeshed import ReadableBuffer
-from typing import AbstractSet, Optional, Union
+from typing import AbstractSet, Optional
 
 class _Hash(object):
     digest_size: int

stdlib/3/http/server.pyi

@@ -3,7 +3,7 @@
 import email.message
 import socketserver
 import sys
-from typing import Any, BinaryIO, Callable, ClassVar, Dict, List, Mapping, Optional, Sequence, Tuple, Union
+from typing import Any, Callable, ClassVar, Dict, List, Mapping, Optional, Sequence, Tuple, Union
 
 if sys.version_info >= (3, 7):
     from builtins import _PathLike

stdlib/3/importlib/machinery.pyi

@@ -1,6 +1,6 @@
 import importlib.abc
 import types
-from typing import Any, Callable, List, Optional, Sequence, Tuple, Union
+from typing import Callable, List, Optional, Sequence, Tuple, Union
 
 # ModuleSpec is exported from this module, but for circular import
 # reasons exists in its own stub file (with Loader and ModuleType).

stdlib/3/io.pyi

@@ -2,7 +2,6 @@ import builtins
 import codecs
 import sys
 from _typeshed import ReadableBuffer, WriteableBuffer
-from mmap import mmap
 from types import TracebackType
 from typing import IO, Any, BinaryIO, Callable, Iterable, Iterator, List, Optional, TextIO, Tuple, Type, TypeVar, Union
 

stdlib/3/multiprocessing/__init__.pyi

@@ -1,7 +1,6 @@
 import sys
-from ctypes import _CData
 from logging import Logger
-from multiprocessing import connection, pool, sharedctypes, spawn, synchronize
+from multiprocessing import connection, pool, sharedctypes, synchronize
 from multiprocessing.context import (
     AuthenticationError as AuthenticationError,
     BaseContext,
@@ -18,7 +17,7 @@ from multiprocessing.process import active_children as active_children, current_
 # These are technically functions that return instances of these Queue classes. See #4313 for discussion
 from multiprocessing.queues import JoinableQueue as JoinableQueue, Queue as Queue, SimpleQueue as SimpleQueue
 from multiprocessing.spawn import freeze_support as freeze_support
-from typing import Any, Callable, Iterable, List, Optional, Sequence, Tuple, Type, Union, overload
+from typing import Any, Callable, Iterable, List, Optional, Sequence, Tuple, Union, overload
 from typing_extensions import Literal
 
 if sys.version_info >= (3, 8):

stdlib/3/tkinter/ttk.pyi

@@ -1,7 +1,7 @@
 import sys
 import tkinter
 from tkinter import Event
-from typing import Any, Callable, Dict, List, Optional, Tuple, Type, TypeVar, Union, overload
+from typing import Any, Callable, List, Optional, overload
 from typing_extensions import Literal
 
 def tclobjs_to_py(adict): ...

stdlib/3/unittest/case.pyi

@@ -2,7 +2,6 @@ import datetime
 import logging
 import sys
 import unittest.result
-import warnings
 from types import TracebackType
 from typing import (
     Any,
@@ -27,6 +26,7 @@ from typing import (
     Union,
     overload,
 )
+from warnings import WarningMessage
 
 _E = TypeVar("_E", bound=BaseException)
 _FT = TypeVar("_FT", bound=Callable[..., Any])
@@ -260,10 +260,10 @@ class _AssertRaisesContext(Generic[_E]):
     ) -> bool: ...
 
 class _AssertWarnsContext:
-    warning: warnings.WarningMessage
+    warning: WarningMessage
     filename: str
     lineno: int
-    warnings: List[warnings.WarningMessage]
+    warnings: List[WarningMessage]
     def __enter__(self) -> _AssertWarnsContext: ...
     def __exit__(
         self, exc_type: Optional[Type[BaseException]], exc_val: Optional[BaseException], exc_tb: Optional[TracebackType]

stdlib/3/urllib/error.pyi

@@ -1,4 +1,4 @@
-from typing import Dict, Union
+from typing import Union
 from urllib.response import addinfourl
 
 # Stubs for urllib.error

stdlib/3/urllib/response.pyi

@@ -2,7 +2,7 @@
 
 from email.message import Message
 from types import TracebackType
-from typing import IO, Any, BinaryIO, Callable, Iterable, List, Mapping, Optional, Tuple, Type, TypeVar
+from typing import IO, Any, BinaryIO, Callable, Iterable, List, Optional, Tuple, Type, TypeVar
 
 _AIUT = TypeVar("_AIUT", bound=addbase)
 

stdlib/3/xmlrpc/client.pyi

@@ -1,10 +1,10 @@
 import gzip
 import http.client
-import io
 import sys
 import time
 from _typeshed import SupportsRead, SupportsWrite
 from datetime import datetime
+from io import BytesIO
 from types import TracebackType
 from typing import Any, Callable, Dict, Iterable, List, Mapping, Optional, Protocol, Tuple, Type, Union, overload
 from typing_extensions import Literal
@@ -198,7 +198,7 @@ def gzip_decode(data: bytes, max_decode: int = ...) -> bytes: ...  # undocumente
 
 class GzipDecodedResponse(gzip.GzipFile):  # undocumented
 
-    io: io.BytesIO
+    io: BytesIO
     def __init__(self, response: SupportsRead[bytes]) -> None: ...
     def close(self) -> None: ...