download_from_bing.py

import ctypes
import requests
import os

class DownloadWallpaper(object):
    def __init__(self):
        r = requests.get('http://www.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1&mkt=en-US')
        data = r.json()
        suffix = data['images'][0]['url']
        wallpaper = requests.get("https://bing.com%s" % suffix)
        with open("wallpaper.jpg", "wb") as wallpaperFile:
            wallpaperFile.write(wallpaper.content)


DownloadWallpaper()