PathLike cleanup (#5242)

Copy builtins._PathLike to os.PathLike

Use os.PathLike exclusively outside of builtins

stdlib/pathlib.pyi

@@ -1,7 +1,7 @@
-import os
 import sys
-from _typeshed import OpenBinaryMode, OpenBinaryModeReading, OpenBinaryModeUpdating, OpenBinaryModeWriting, OpenTextMode
+from _typeshed import OpenBinaryMode, OpenBinaryModeReading, OpenBinaryModeUpdating, OpenBinaryModeWriting, OpenTextMode, StrPath
 from io import BufferedRandom, BufferedReader, BufferedWriter, FileIO, TextIOWrapper
+from os import PathLike, stat_result
 from types import TracebackType
 from typing import IO, Any, BinaryIO, Generator, List, Optional, Sequence, Tuple, Type, TypeVar, Union, overload
 from typing_extensions import Literal
@@ -11,10 +11,7 @@ if sys.version_info >= (3, 9):
 
 _P = TypeVar("_P", bound=PurePath)
 
-_PurePathBase = os.PathLike[str]
-_PathLike = os.PathLike[str]
-
-class PurePath(_PurePathBase):
+class PurePath(PathLike[str]):
     parts: Tuple[str, ...]
     drive: str
     root: str
@@ -23,28 +20,28 @@ class PurePath(_PurePathBase):
     suffix: str
     suffixes: List[str]
     stem: str
-    def __new__(cls: Type[_P], *args: Union[str, _PathLike]) -> _P: ...
+    def __new__(cls: Type[_P], *args: StrPath) -> _P: ...
     def __hash__(self) -> int: ...
     def __lt__(self, other: PurePath) -> bool: ...
     def __le__(self, other: PurePath) -> bool: ...
     def __gt__(self, other: PurePath) -> bool: ...
     def __ge__(self, other: PurePath) -> bool: ...
-    def __truediv__(self: _P, key: Union[str, _PathLike]) -> _P: ...
-    def __rtruediv__(self: _P, key: Union[str, _PathLike]) -> _P: ...
+    def __truediv__(self: _P, key: StrPath) -> _P: ...
+    def __rtruediv__(self: _P, key: StrPath) -> _P: ...
     def __bytes__(self) -> bytes: ...
     def as_posix(self) -> str: ...
     def as_uri(self) -> str: ...
     def is_absolute(self) -> bool: ...
     def is_reserved(self) -> bool: ...
     if sys.version_info >= (3, 9):
-        def is_relative_to(self, *other: Union[str, os.PathLike[str]]) -> bool: ...
+        def is_relative_to(self, *other: StrPath) -> bool: ...
     def match(self, path_pattern: str) -> bool: ...
-    def relative_to(self: _P, *other: Union[str, _PathLike]) -> _P: ...
+    def relative_to(self: _P, *other: StrPath) -> _P: ...
     def with_name(self: _P, name: str) -> _P: ...
     if sys.version_info >= (3, 9):
         def with_stem(self: _P, stem: str) -> _P: ...
     def with_suffix(self: _P, suffix: str) -> _P: ...
-    def joinpath(self: _P, *other: Union[str, _PathLike]) -> _P: ...
+    def joinpath(self: _P, *other: StrPath) -> _P: ...
     @property
     def parents(self: _P) -> Sequence[_P]: ...
     @property
@@ -56,14 +53,14 @@ class PurePosixPath(PurePath): ...
 class PureWindowsPath(PurePath): ...
 
 class Path(PurePath):
-    def __new__(cls: Type[_P], *args: Union[str, _PathLike], **kwargs: Any) -> _P: ...
+    def __new__(cls: Type[_P], *args: StrPath, **kwargs: Any) -> _P: ...
     def __enter__(self: _P) -> _P: ...
     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: ...
+    def stat(self) -> stat_result: ...
     def chmod(self, mode: int) -> None: ...
     def exists(self) -> bool: ...
     def glob(self: _P, pattern: str) -> Generator[_P, None, None]: ...
@@ -79,7 +76,7 @@ class Path(PurePath):
     def is_char_device(self) -> bool: ...
     def iterdir(self: _P) -> Generator[_P, None, None]: ...
     def lchmod(self, mode: int) -> None: ...
-    def lstat(self) -> os.stat_result: ...
+    def lstat(self) -> stat_result: ...
     def mkdir(self, mode: int = ..., parents: bool = ..., exist_ok: bool = ...) -> None: ...
     # Adapted from builtins.open
     # Text mode: always returns a TextIOWrapper
@@ -168,7 +165,7 @@ class Path(PurePath):
     def write_bytes(self, data: bytes) -> 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: ...
+        def link_to(self, target: Union[StrPath, bytes]) -> None: ...
 
 class PosixPath(Path, PurePosixPath): ...
 class WindowsPath(Path, PureWindowsPath): ...