Remove windows check

Author: Fidget-Spinner

Lib/tempfile.py

@@ -826,10 +826,10 @@ def resetperms(path):
                         cls._rmtree(path, ignore_errors=ignore_errors)
                     # PermissionError is raised on FreeBSD for directories
                     except PermissionError:
-                        # bpo-43153: On Windows, calling _rmtree again will
+                        # bpo-43153: Calling _rmtree again may
                         # raise NotADirectoryError and mask the PermissionError.
                         # So we must re-raise the current PermissionError.
-                        if _os.name == 'nt' and not _os.path.isdir(path):
+                        if not _os.path.isdir(path):
                             if ignore_errors:
                                 return
                             raise

Lib/test/test_tempfile.py

@@ -1460,12 +1460,12 @@ def test_explict_cleanup_ignore_errors(self):
                 temp_path.exists(),
                 f"TemporaryDirectory {temp_path!s} exists after cleanup")
 
-    @unittest.skipUnless(os.name == "nt", "Only on Windows.")
     def test_explicit_cleanup_correct_error(self):
         with tempfile.TemporaryDirectory() as working_dir:
             temp_dir = self.do_create(dir=working_dir)
             with open(os.path.join(temp_dir.name, "example.txt"), 'wb'):
-                # Used to raise NotADirectoryError on Windows. See bpo-43153.
+                # Previously raised NotADirectoryError on some OSes
+                # (e.g. WIndows). See bpo-43153.
                 with self.assertRaises(PermissionError):
                     temp_dir.cleanup()