python - 检查目录是否是python 2.7的挂载点

Question

是否有一种 pythonic 方式并且没有 shell 命令(即使用 subprocess 模块)来检查目录是否是挂载点？

到目前为止，我使用:

import os
import subprocess

def is_mount_point(dir_path):
    try:
        check_output([
            'mountpoint',
            path.realpath(dir_name)
        ])
        return True
    except CalledProcessError:
        return False

Answer 1

有一个os.path.ismount(path) .

Return True if pathname path is a mount point: a point in a file system where a different file system has been mounted. The function checks whether path‘s parent, path/.., is on a different device than path, or whether path/.. and path point to the same i-node on the same device — this should detect mount points for all Unix and POSIX variants.

import os
os.path.ismount(dir_name)  # returns boolean

您也可以引用implementation (如果您使用的是 POSIX 系统)。检查其他平台的 macpath.py 或 ntpath.py。