Download wallpaper from Bing

bing.py

import requests
from requests.exceptions import RequestException

from lxml import etree
from io import BytesIO

BING_URL = "https://www.bing.com/"

def bing_get_wallpaper_url(debug = True):  

    session = requests.Session()

    try:
        bing_response = session.get(BING_URL)
        if (debug):
            print(bing_response.headers)

        phaser = etree.HTMLParser()
        dom_html = etree.parse(BytesIO(bing_response.content), phaser)

        wallpaper_link = dom_html.xpath('//link[@id="preloadBg"]')[0]
        wallpaper_url = wallpaper_link.attrib['href']

        if (debug):
            print(etree.tostring(wallpaper_link, pretty_print=True, method="html"))
            print(wallpaper_url)

        return wallpaper_url

    except RequestException as e:
        print("No response from Bing: ", e)


if __name__ == "__main__":
    print("Getting Wallpaper Link...")
    wallpaper_url = bing_get_wallpaper_url()
    image_filename = wallpaper_url.split("OHR.")[1].split("&")[0]
    print("Downloading Wallpaper...")
    try:
        img_data = requests.get(BING_URL + wallpaper_url).content

        with open(image_filename, 'wb') as handler:
            handler.write(img_data)
    except RequestException as e:
        print("Bad image link: ", e)
    print("Wallpaper " + image_filename + " Downloaded!")