[#6#wangx@manjaro-5800:~] $ pythonPython 3.10.4 (main, Mar 23 2022, 23:05:40) [GCC 11.2.0] on linuxType "help", "copyright", "credits" or "license" for more information.>>> from pathlib import Path>>> Path("/home/wangx").parents[-1]PosixPath('/')>>> Path("/home/wangx").parents[-1] == Path("/")False>>> Path("/home/wangx").parents[1] == Path("/")True>>> Path("/home/wangx").parents[1]PosixPath('/')>>>

 422 class _PathParents(Sequence):                                                    423     """This object provides sequence-like access to the logical ancestors        424     of a path.  Don't try to construct it yourself."""                           425     __slots__ = ('_pathcls', '_drv', '_root', '_parts')                          426                                                                                  427     def __init__(self, path):                                                    428         # We don't store the instance to avoid reference cycles                  429         self._pathcls = type(path)                                               430         self._drv = path._drv                                                    431         self._root = path._root                                                  432         self._parts = path._parts                                                433                                                                                  434     def __len__(self):                                                           435         if self._drv or self._root:                                              436             return len(self._parts) - 1                                          437         else:                                                                    438             return len(self._parts)                                              439                                                                                  440     def __getitem__(self, idx):                                                  441         if isinstance(idx, slice):                                               442             return tuple(self[i] for i in range(*idx.indices(len(self))))        443                                                                                  444         if idx >= len(self) or idx < -len(self):                                 445             raise IndexError(idx)                                                446         return self._pathcls._from_parsed_parts(self._drv, self._root,           447                                                 self._parts[:-idx - 1])