Improve path-related type hints for setuptools.Extension() and distutils.CCompiler() (#12958)

Co-authored-by: Avasam <samuel.06@hotmail.com>

stubs/setuptools/setuptools/_distutils/ccompiler.pyi

@@ -1,5 +1,5 @@
 from _typeshed import BytesPath, StrPath, Unused
-from collections.abc import Callable, Iterable
+from collections.abc import Callable, Iterable, Sequence
 from typing import ClassVar, Literal, TypeVar, overload
 from typing_extensions import TypeAlias, TypeVarTuple, Unpack
 
@@ -67,7 +67,7 @@ class CCompiler:
     def set_executables(self, **args: str) -> None: ...
     def compile(
         self,
-        sources: list[str],
+        sources: Sequence[StrPath],
         output_dir: str | None = None,
         macros: list[_Macro] | None = None,
         include_dirs: list[str] | None = None,

stubs/setuptools/setuptools/_distutils/extension.pyi

@@ -1,6 +1,10 @@
+from _typeshed import StrPath
+from os import PathLike
+from pathlib import Path
+
 class Extension:
     name: str
-    sources: list[str]
+    sources: list[str] | list[StrPath]
     include_dirs: list[str]
     define_macros: list[tuple[str, str | None]]
     undef_macros: list[str]
@@ -18,7 +22,7 @@ class Extension:
     def __init__(
         self,
         name: str,
-        sources: list[str],
+        sources: list[str] | list[PathLike[str]] | list[Path] | list[StrPath],
         include_dirs: list[str] | None = None,
         define_macros: list[tuple[str, str | None]] | None = None,
         undef_macros: list[str] | None = None,

stubs/setuptools/setuptools/extension.pyi

@@ -1,4 +1,6 @@
 from _typeshed import StrPath
+from os import PathLike
+from pathlib import Path
 
 from ._distutils.extension import Extension as _Extension
 
@@ -9,7 +11,7 @@ class Extension(_Extension):
     def __init__(
         self,
         name: str,
-        sources: list[StrPath],
+        sources: list[str] | list[PathLike[str]] | list[Path] | list[StrPath],
         include_dirs: list[str] | None = None,
         define_macros: list[tuple[str, str | None]] | None = None,
         undef_macros: list[str] | None = None,