adjust isort config (#4290)

Fixes #4288.

- Default imports to THIRD_PARTY, so in effect we merge the FIRST_PARTY and THIRD_PARTY stubs. This means import order is no longer affected by whether typing_extensions is installed locally.
- Treat typing_extensions, _typeshed and some others as standard library modules.

Note that isort master is very different from the latest release; we'll have to do something
different if and when the next isort release comes out.

stdlib/3/_sitebuiltins.pyi

@@ -1,5 +1,4 @@
 from typing import ClassVar, Iterable, NoReturn, Optional
-
 from typing_extensions import Literal
 
 class Quitter:

stdlib/3/_winapi.pyi

@@ -1,6 +1,5 @@
 import sys
 from typing import Any, Dict, NoReturn, Optional, Sequence, Tuple, Union, overload
-
 from typing_extensions import Literal
 
 CREATE_NEW_CONSOLE: int

stdlib/3/ast.pyi

@@ -9,7 +9,6 @@
 import sys
 import typing as _typing
 from typing import Any, Iterator, Optional, TypeVar, Union, overload
-
 from typing_extensions import Literal
 
 from _ast import *  # type: ignore

stdlib/3/asyncio/base_events.pyi

@@ -1,5 +1,6 @@
 import ssl
 import sys
+from _typeshed import FileDescriptorLike
 from abc import ABCMeta
 from asyncio.events import AbstractEventLoop, AbstractServer, Handle, TimerHandle
 from asyncio.futures import Future
@@ -8,11 +9,8 @@ from asyncio.tasks import Task
 from asyncio.transports import BaseTransport
 from socket import _Address, _RetAddress, socket
 from typing import IO, Any, Awaitable, Callable, Dict, Generator, List, Optional, Sequence, Tuple, TypeVar, Union, overload
-
 from typing_extensions import Literal
 
-from _typeshed import FileDescriptorLike
-
 if sys.version_info >= (3, 7):
     from contextvars import Context
 

stdlib/3/asyncio/base_futures.pyi

@@ -1,6 +1,5 @@
 import contextvars
 from typing import Callable, List, Sequence, Tuple
-
 from typing_extensions import Literal
 
 from . import futures

stdlib/3/asyncio/base_tasks.pyi

@@ -1,8 +1,7 @@
+from _typeshed import AnyPath
 from types import FrameType
 from typing import List, Optional
 
-from _typeshed import AnyPath
-
 from . import tasks
 
 def _task_repr_info(task: tasks.Task) -> List[str]: ...  # undocumented

stdlib/3/asyncio/events.pyi

@@ -1,5 +1,6 @@
 import ssl
 import sys
+from _typeshed import FileDescriptorLike
 from abc import ABCMeta, abstractmethod
 from asyncio.futures import Future
 from asyncio.protocols import BaseProtocol
@@ -9,8 +10,6 @@ from asyncio.unix_events import AbstractChildWatcher
 from socket import _Address, _RetAddress, socket
 from typing import IO, Any, Awaitable, Callable, Dict, Generator, List, Optional, Sequence, Tuple, TypeVar, Union, overload
 
-from _typeshed import FileDescriptorLike
-
 if sys.version_info >= (3, 7):
     from contextvars import Context
 

stdlib/3/asyncio/proactor_events.pyi

@@ -1,6 +1,5 @@
 from socket import socket
 from typing import Any, Mapping, Optional
-
 from typing_extensions import Literal
 
 from . import base_events, constants, events, futures, streams, transports

stdlib/3/asyncio/sslproto.pyi

@@ -1,7 +1,6 @@
 import ssl
 import sys
 from typing import Any, Callable, ClassVar, Deque, Dict, List, Optional, Tuple
-
 from typing_extensions import Literal
 
 from . import constants, events, futures, protocols, transports

stdlib/3/asyncio/tasks.pyi

@@ -17,7 +17,6 @@ from typing import (
     Union,
     overload,
 )
-
 from typing_extensions import Literal
 
 from .events import AbstractEventLoop

stdlib/3/compileall.pyi

@@ -1,7 +1,6 @@
 import sys
-from typing import Any, Optional, Pattern
-
 from _typeshed import AnyPath
+from typing import Any, Optional, Pattern
 
 if sys.version_info < (3, 6):
     _SuccessType = bool

stdlib/3/configparser.pyi

@@ -1,4 +1,5 @@
 import sys
+from _typeshed import AnyPath, StrPath
 from typing import (
     IO,
     AbstractSet,
@@ -21,8 +22,6 @@ from typing import (
     overload,
 )
 
-from _typeshed import AnyPath, StrPath
-
 # Internal type aliases
 _section = Mapping[str, str]
 _parser = MutableMapping[str, _section]

stdlib/3/dbm/__init__.pyi

@@ -1,7 +1,6 @@
 import sys
 from types import TracebackType
 from typing import Iterator, MutableMapping, Optional, Type, Union
-
 from typing_extensions import Literal
 
 _KeyType = Union[str, bytes]

stdlib/3/faulthandler.pyi

@@ -1,5 +1,4 @@
 import sys
-
 from _typeshed import FileDescriptorLike
 
 def cancel_dump_traceback_later() -> None: ...

stdlib/3/fcntl.pyi

@@ -1,10 +1,8 @@
+from _typeshed import FileDescriptorLike
 from array import array
 from typing import Any, Union, overload
-
 from typing_extensions import Literal
 
-from _typeshed import FileDescriptorLike
-
 FASYNC: int
 FD_CLOEXEC: int
 DN_ACCESS: int

stdlib/3/gettext.pyi

@@ -1,9 +1,7 @@
 import sys
-from typing import IO, Any, Container, Iterable, Optional, Sequence, Type, TypeVar, Union, overload
-
-from typing_extensions import Literal
-
 from _typeshed import StrPath
+from typing import IO, Any, Container, Iterable, Optional, Sequence, Type, TypeVar, Union, overload
+from typing_extensions import Literal
 
 class NullTranslations:
     def __init__(self, fp: Optional[IO[str]] = ...) -> None: ...

stdlib/3/gzip.pyi

@@ -1,11 +1,9 @@
 import _compression
 import sys
 import zlib
-from typing import IO, Optional, TextIO, Union, overload
-
-from typing_extensions import Literal
-
 from _typeshed import AnyPath, ReadableBuffer
+from typing import IO, Optional, TextIO, Union, overload
+from typing_extensions import Literal
 
 _OpenBinaryMode = Literal["r", "rb", "a", "ab", "w", "wb", "x", "xb"]
 _OpenTextMode = Literal["rt", "at", "wt", "xt"]

stdlib/3/hashlib.pyi

@@ -1,9 +1,8 @@
 # Stubs for hashlib
 
 import sys
-from typing import AbstractSet, Optional, Union
-
 from _typeshed import ReadableBuffer
+from typing import AbstractSet, Optional, Union
 
 class _Hash(object):
     digest_size: int

stdlib/3/http/__init__.pyi

@@ -1,6 +1,5 @@
 import sys
 from enum import IntEnum
-
 from typing_extensions import Literal
 
 class HTTPStatus(IntEnum):

stdlib/3/imp.pyi

@@ -1,6 +1,7 @@
 import os
 import sys
 import types
+from _typeshed import StrPath
 from typing import IO, Any, List, Optional, Tuple, TypeVar, Union
 
 from _imp import (
@@ -14,7 +15,6 @@ from _imp import (
     lock_held as lock_held,
     release_lock as release_lock,
 )
-from _typeshed import StrPath
 
 _T = TypeVar("_T")
 

stdlib/3/io.pyi

@@ -1,12 +1,11 @@
 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
 
-from _typeshed import ReadableBuffer, WriteableBuffer
-
 DEFAULT_BUFFER_SIZE: int
 
 SEEK_SET: int

stdlib/3/json/__init__.pyi

@@ -1,7 +1,6 @@
 import sys
-from typing import IO, Any, Callable, Dict, List, Optional, Tuple, Type, Union
-
 from _typeshed import SupportsRead
+from typing import IO, Any, Callable, Dict, List, Optional, Tuple, Type, Union
 
 from .decoder import JSONDecodeError as JSONDecodeError, JSONDecoder as JSONDecoder
 from .encoder import JSONEncoder as JSONEncoder

stdlib/3/lzma.pyi

@@ -1,9 +1,7 @@
 import io
-from typing import IO, Any, Mapping, Optional, Sequence, TextIO, TypeVar, Union, overload
-
-from typing_extensions import Literal
-
 from _typeshed import AnyPath, ReadableBuffer
+from typing import IO, Any, Mapping, Optional, Sequence, TextIO, TypeVar, Union, overload
+from typing_extensions import Literal
 
 _OpenBinaryWritingMode = Literal["w", "wb", "x", "xb", "a", "ab"]
 _OpenTextWritingMode = Literal["wt", "xt", "at"]

stdlib/3/multiprocessing/__init__.pyi

@@ -1,7 +1,7 @@
 import sys
 from ctypes import _CData
 from logging import Logger
-from multiprocessing import connection, pool, sharedctypes, spawn, synchronize, queues
+from multiprocessing import connection, pool, queues, sharedctypes, spawn, synchronize
 from multiprocessing.context import (
     AuthenticationError as AuthenticationError,
     BaseContext,
@@ -16,7 +16,6 @@ from multiprocessing.managers import SyncManager
 from multiprocessing.process import active_children as active_children, current_process as current_process
 from multiprocessing.spawn import freeze_support as freeze_support
 from typing import Any, Callable, Iterable, List, Optional, Sequence, Tuple, Type, Union, overload
-
 from typing_extensions import Literal
 
 if sys.version_info >= (3, 8):

stdlib/3/multiprocessing/context.pyi

@@ -4,7 +4,6 @@ from logging import Logger
 from multiprocessing import queues, sharedctypes, synchronize
 from multiprocessing.process import BaseProcess
 from typing import Any, Callable, Iterable, List, Optional, Sequence, Type, Union, overload
-
 from typing_extensions import Literal
 
 _LockLike = Union[synchronize.Lock, synchronize.RLock]

stdlib/3/os/__init__.pyi

@@ -1,4 +1,5 @@
 import sys
+from _typeshed import AnyPath
 from builtins import OSError as error
 from io import TextIOWrapper as _TextIOWrapper
 from posix import listdir as listdir, times_result
@@ -25,8 +26,6 @@ from typing import (
     overload,
 )
 
-from _typeshed import AnyPath
-
 from . import path as path
 
 # We need to use something from path, or flake8 and pytype get unhappy

stdlib/3/os/path.pyi

@@ -1,11 +1,10 @@
 # NB: path.pyi and stdlib/2 and stdlib/3 must remain consistent!
 import os
 import sys
+from _typeshed import AnyPath, BytesPath, StrPath
 from genericpath import exists as exists
 from typing import Any, AnyStr, Callable, List, Optional, Sequence, Text, Tuple, TypeVar, overload
 
-from _typeshed import AnyPath, BytesPath, StrPath
-
 _T = TypeVar("_T")
 
 if sys.version_info >= (3, 6):

stdlib/3/pathlib.pyi

@@ -1,10 +1,9 @@
 import os
 import sys
+from _typeshed import OpenBinaryMode, OpenTextMode
 from types import TracebackType
 from typing import IO, Any, BinaryIO, Generator, List, Optional, Sequence, TextIO, Tuple, Type, TypeVar, Union, overload
 
-from _typeshed import OpenBinaryMode, OpenTextMode
-
 _P = TypeVar("_P", bound=PurePath)
 
 if sys.version_info >= (3, 6):

stdlib/3/selectors.pyi

@@ -1,9 +1,8 @@
 import sys
+from _typeshed import FileDescriptor, FileDescriptorLike
 from abc import ABCMeta, abstractmethod
 from typing import Any, List, Mapping, NamedTuple, Optional, Tuple
 
-from _typeshed import FileDescriptor, FileDescriptorLike
-
 _EventMask = int
 
 EVENT_READ: _EventMask

stdlib/3/subprocess.pyi

@@ -1,11 +1,9 @@
 import sys
+from _typeshed import AnyPath
 from types import TracebackType
 from typing import IO, Any, AnyStr, Callable, Generic, Mapping, Optional, Sequence, Tuple, Type, TypeVar, Union, overload
-
 from typing_extensions import Literal
 
-from _typeshed import AnyPath
-
 # We prefer to annotate inputs to methods (eg subprocess.check_call) with these
 # union types.
 # For outputs we use laborious literal based overloads to try to determine

stdlib/3/tempfile.pyi

@@ -2,7 +2,6 @@ import os
 import sys
 from types import TracebackType
 from typing import IO, Any, AnyStr, Generic, Iterable, Iterator, List, Optional, Tuple, Type, TypeVar, Union, overload
-
 from typing_extensions import Literal
 
 # global variables

stdlib/3/venv/__init__.pyi

@@ -1,9 +1,8 @@
 import sys
+from _typeshed import AnyPath
 from types import SimpleNamespace
 from typing import Optional, Sequence
 
-from _typeshed import AnyPath
-
 class EnvBuilder:
     system_site_packages: bool
     clear: bool

stdlib/3/xmlrpc/client.pyi

@@ -3,14 +3,12 @@ import http.client
 import io
 import sys
 import time
+from _typeshed import SupportsRead, SupportsWrite
 from datetime import datetime
 from types import TracebackType
 from typing import Any, Callable, Dict, Iterable, List, Mapping, Optional, Protocol, Tuple, Type, Union, overload
-
 from typing_extensions import Literal
 
-from _typeshed import SupportsRead, SupportsWrite
-
 class _SupportsTimeTuple(Protocol):
     def timetuple(self) -> time.struct_time: ...