def _append_slash_if_dir_path(self, relpath):
    """For a dir path return a path that has a trailing slash."""
    if self._isdir_raw(relpath):
      return self._append_trailing_slash(relpath)

    return relpath
def _append_slash_if_dir_path ( self , relpath ) : if self . _isdir_raw ( relpath ) : return self . _append_trailing_slash ( relpath ) return relpath
For a dir path return a path that has a trailing slash.