every time you execute this script will set your wallpaper to a random picture from bingwallpaper.com

bing_wallpapper.py

#! /usr/bin/env python3d
import requests
from bs4 import BeautifulSoup
import os
import sys
import datetime
import random
import hashlib


def md5_str(my_string):
    m = hashlib.md5()
    m.update(my_string.encode('utf-8'))
    return m.hexdigest()


def prepare_dir():
    root_dir = os.path.join(os.path.expanduser('~'), "Pictures", "bing")
    if not os.path.exists(root_dir):
        os.makedirs(root_dir)
    return root_dir


def mac_pic_dir(root_dir):
    today = datetime.datetime.now().strftime("%Y-%m-%d")
    pic_dir = os.path.join(root_dir, today)
    if not os.path.exists(pic_dir):
        os.makedirs(pic_dir)
    return pic_dir


# maybe support windows in someday
def make_cmd(file_path):
    os_type = sys.platform
    print("os_type: ", os_type)
    cmd_base = ""
    if os_type == "darwin":
        cmd_base = 'osascript -e \'tell application "Finder" to set desktop picture to POSIX file "{path}"\''
    elif os_type.find("linux") > 0:
        cmd_base = 'gsettings set org.gnome.desktop.background picture-uri http://file://{path}'
    elif os_type == "win32":
        cmd_base = '''reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "{path}" /f
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters'''
    cmd = cmd_base.format(path=file_path)
    return cmd


def execute_cmd(cmd):
    os.system(cmd)


def get_pic_url():
    url = 'http://bingwallpaper.com/'
    sc = requests.get(url)
    soup = BeautifulSoup(sc.text, 'lxml')
    image = soup.select('.cursor_zoom img')
    random_index = random.randint(0, len(image)-1)
    image_title = image[random_index].get('title')
    image_url = image[random_index].get('src')
    return image_title, image_url


def download_file(url, file_path):
    res = requests.get(url)
    with open(file_path, 'wb') as file:
        file.write(res.content)


def get_picture():
    title, url = get_pic_url()
    pic_dir = prepare_dir()
    title = md5_str(title)[:5]
    file_name = title + ".jpg"
    pic_path = os.path.join(pic_dir, file_name)
    if os.path.exists(pic_path):
        print("ignore: ", title)
    else:
        print("download: ", title)
        download_file(url, pic_path)
    return pic_path


def set_pic_as_wallpaper():
    pic_file = get_picture()
    cmd = make_cmd(pic_file)
    execute_cmd(cmd)


if __name__ == '__main__':
    set_pic_as_wallpaper()