Simplify logic with direct path conversion

git/index/typ.py

@@ -58,9 +58,9 @@ def __init__(self, paths: Sequence[PathLike]) -> None:
 
  def __call__(self, stage_blob: Tuple[StageType, Blob]) -> bool:
  blob_pathlike: PathLike = stage_blob[1].path
- blob_path: Path = blob_pathlike if isinstance(blob_pathlike, Path) else Path(blob_pathlike)
+ blob_path = Path(blob_pathlike)
  for pathlike in self.paths:
- path: Path = pathlike if isinstance(pathlike, Path) else Path(pathlike)
+ path = Path(pathlike)
  # TODO: Change to use `PosixPath.is_relative_to` once Python 3.8 is no
  # longer supported.
  filter_parts = path.parts