[#6#wangx@manjaro-5800:~] $ python
Python 3.10.4 (main, Mar 23 2022, 23:05:40) [GCC 11.2.0] on linux
Type "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])