apply black and isort (#4287)

* apply black and isort

* move some type ignores

stdlib/3/pathlib.pyi

@@ -1,11 +1,11 @@
-from _typeshed import OpenBinaryMode, OpenTextMode
-from typing import (Any, BinaryIO, Generator, IO, List, Optional, Sequence,
-                    TextIO, Tuple, Type, TypeVar, Union, overload)
-from types import TracebackType
 import os
 import sys
+from types import TracebackType
+from typing import IO, Any, BinaryIO, Generator, List, Optional, Sequence, TextIO, Tuple, Type, TypeVar, Union, overload
 
-_P = TypeVar('_P', bound=PurePath)
+from _typeshed import OpenBinaryMode, OpenTextMode
+
+_P = TypeVar("_P", bound=PurePath)
 
 if sys.version_info >= (3, 6):
     _PurePathBase = os.PathLike[str]
@@ -60,7 +60,6 @@ class PurePath(_PurePathBase):
         def joinpath(self: _P, *other: Union[str, PurePath]) -> _P: ...
     else:
         def joinpath(self: _P, *other: Union[str, os.PathLike[str]]) -> _P: ...
-
     @property
     def parents(self: _P) -> Sequence[_P]: ...
     @property
@@ -71,9 +70,9 @@ class PureWindowsPath(PurePath): ...
 
 class Path(PurePath):
     def __enter__(self) -> Path: ...
-    def __exit__(self, exc_type: Optional[Type[BaseException]],
-                 exc_value: Optional[BaseException],
-                 traceback: Optional[TracebackType]) -> Optional[bool]: ...
+    def __exit__(
+        self, exc_type: Optional[Type[BaseException]], exc_value: Optional[BaseException], traceback: Optional[TracebackType]
+    ) -> Optional[bool]: ...
     @classmethod
     def cwd(cls: Type[_P]) -> _P: ...
     def stat(self) -> os.stat_result: ...
@@ -94,20 +93,31 @@ class Path(PurePath):
     def lchmod(self, mode: int) -> None: ...
     def lstat(self) -> os.stat_result: ...
     if sys.version_info < (3, 5):
-        def mkdir(self, mode: int = ...,
-                  parents: bool = ...) -> None: ...
+        def mkdir(self, mode: int = ..., parents: bool = ...) -> None: ...
     else:
-        def mkdir(self, mode: int = ..., parents: bool = ...,
-                  exist_ok: bool = ...) -> None: ...
+        def mkdir(self, mode: int = ..., parents: bool = ..., exist_ok: bool = ...) -> None: ...
     @overload
-    def open(self, mode: OpenTextMode = ..., buffering: int = ..., encoding: Optional[str] = ..., errors: Optional[str] = ...,
-             newline: Optional[str] = ...) -> TextIO: ...
+    def open(
+        self,
+        mode: OpenTextMode = ...,
+        buffering: int = ...,
+        encoding: Optional[str] = ...,
+        errors: Optional[str] = ...,
+        newline: Optional[str] = ...,
+    ) -> TextIO: ...
     @overload
-    def open(self, mode: OpenBinaryMode, buffering: int = ..., encoding: None = ..., errors: None = ...,
-             newline: None = ...) -> BinaryIO: ...
+    def open(
+        self, mode: OpenBinaryMode, buffering: int = ..., encoding: None = ..., errors: None = ..., newline: None = ...
+    ) -> BinaryIO: ...
     @overload
-    def open(self, mode: str, buffering: int = ..., encoding: Optional[str] = ..., errors: Optional[str] = ...,
-             newline: Optional[str] = ...) -> IO[Any]: ...
+    def open(
+        self,
+        mode: str,
+        buffering: int = ...,
+        encoding: Optional[str] = ...,
+        errors: Optional[str] = ...,
+        newline: Optional[str] = ...,
+    ) -> IO[Any]: ...
     def owner(self) -> str: ...
     if sys.version_info >= (3, 9):
         def readlink(self: _P) -> _P: ...
@@ -123,36 +133,28 @@ class Path(PurePath):
         def resolve(self: _P, strict: bool = ...) -> _P: ...
     def rglob(self, pattern: str) -> Generator[Path, None, None]: ...
     def rmdir(self) -> None: ...
-    def symlink_to(self, target: Union[str, Path],
-                   target_is_directory: bool = ...) -> None: ...
+    def symlink_to(self, target: Union[str, Path], target_is_directory: bool = ...) -> None: ...
     def touch(self, mode: int = ..., exist_ok: bool = ...) -> None: ...
     if sys.version_info >= (3, 8):
         def unlink(self, missing_ok: bool = ...) -> None: ...
     else:
         def unlink(self) -> None: ...
-
     if sys.version_info >= (3, 5):
         @classmethod
         def home(cls: Type[_P]) -> _P: ...
         if sys.version_info < (3, 6):
-            def __new__(cls: Type[_P], *args: Union[str, PurePath],
-                        **kwargs: Any) -> _P: ...
+            def __new__(cls: Type[_P], *args: Union[str, PurePath], **kwargs: Any) -> _P: ...
         else:
-            def __new__(cls: Type[_P], *args: Union[str, os.PathLike[str]],
-                        **kwargs: Any) -> _P: ...
-
+            def __new__(cls: Type[_P], *args: Union[str, os.PathLike[str]], **kwargs: Any) -> _P: ...
         def absolute(self: _P) -> _P: ...
         def expanduser(self: _P) -> _P: ...
         def read_bytes(self) -> bytes: ...
-        def read_text(self, encoding: Optional[str] = ...,
-                      errors: Optional[str] = ...) -> str: ...
+        def read_text(self, encoding: Optional[str] = ..., errors: Optional[str] = ...) -> str: ...
         def samefile(self, other_path: Union[str, bytes, int, Path]) -> bool: ...
         def write_bytes(self, data: bytes) -> int: ...
-        def write_text(self, data: str, encoding: Optional[str] = ...,
-                       errors: Optional[str] = ...) -> int: ...
+        def write_text(self, data: str, encoding: Optional[str] = ..., errors: Optional[str] = ...) -> int: ...
     if sys.version_info >= (3, 8):
         def link_to(self, target: Union[str, bytes, os.PathLike[str]]) -> None: ...
 
-
 class PosixPath(Path, PurePosixPath): ...
 class WindowsPath(Path, PureWindowsPath): ...