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#!/usr/bin/python3

# -*- coding: utf-8 -*-

# Author: xurongzhong#126.com wechat:pythontesting qq:37391319

# CreateDate: 2018-1-29

# from https://pymotw.com/3/pathlib/index.html

# pathlib_chmod.py

import os

import pathlib

import stat

# Create a fresh test file.

f = pathlib.Path('pathlib_chmod_example.txt')

if f.exists():

f.unlink()

f.write_text('contents')

# Determine what permissions are already set using stat.

existing_permissions = stat.S_IMODE(f.stat().st_mode)

print('Before: {:o}'.format(existing_permissions))

# Decide which way to toggle them.

if not (existing_permissions & os.X_OK):

print('Adding execute permission')

new_permissions = existing_permissions | stat.S_IXUSR

else:

print('Removing execute permission')

# use xor to remove the user execute permission

new_permissions = existing_permissions ^ stat.S_IXUSR

# Make the change and show the new value.

f.chmod(new_permissions)

after_permissions = stat.S_IMODE(f.stat().st_mode)

print('After: {:o}'.format(after_permissions))