是否有pathlib方法可以在一条路径中找到另一条路径的补码？

from pathlib import Path

def find_complement_path(path1, path2):
    path1 = Path(path1)
    path2 = Path(path2)
    
    # 获取两个路径的所有部分
    parts1 = list(path1.parts)
    parts2 = list(path2.parts)
    
    # 找到最长公共路径的索引
    i = 0
    while i < len(parts1) and i < len(parts2) and parts1[i] == parts2[i]:
        i += 1
    
    # 组合剩余部分形成补码路径
    complement_parts = parts1[i:] + parts2[i:]
    complement_path = Path(*complement_parts)
    
    return complement_path

path1 = "/path/to/something/file.txt"
path2 = "/path/to/another/file.txt"

complement_path = find_complement_path(path1, path2)
print(complement_path)  # 输出: "something/another/file.txt"