Remove _is_relative_to() util

Author: jacobtylerwalls

pylint/lint/pylinter.py

@@ -48,7 +48,6 @@
     report_total_messages_stats,
 )
 from pylint.lint.utils import (
-    _is_relative_to,
     augmented_sys_path,
     get_fatal_error_message,
     prepare_crash_report,
@@ -918,7 +917,7 @@ def _get_namespace_for_file(
         self, filepath: Path, namespaces: DirectoryNamespaceDict
     ) -> argparse.Namespace | None:
         for directory in namespaces:
-            if _is_relative_to(filepath, directory):
+            if Path.is_relative_to(filepath, directory):
                 namespace = self._get_namespace_for_file(
                     filepath, namespaces[directory][1]
                 )

pylint/lint/utils.py

@@ -133,16 +133,3 @@ def augmented_sys_path(additional_paths: Sequence[str]) -> Iterator[None]:
         yield
     finally:
         sys.path[:] = original
-
-
-def _is_relative_to(self: Path, *other: Path) -> bool:
-    """Checks if self is relative to other.
-
-    Backport of pathlib.Path.is_relative_to for Python <3.9
-    TODO: py39: Remove this backport and use stdlib function.
-    """
-    try:
-        self.relative_to(*other)
-        return True
-    except ValueError:
-        return False