Get a random xkcd comic and set it as wallpaper on Windows 10

get_xkcd_wallpaper.py

import ctypes
import os
import shutil
import time
import urllib.request
from ctypes import wintypes

import requests  # pip install requests
from PIL import Image  # pip install pillow

# Get webpage as HTML
webpage = "https://c.xkcd.com/random/comic/"
fp = urllib.request.urlopen(webpage)
html = fp.read().decode("utf8")
fp.close()

# Find the line which contains the image url
# XKCD provides the link on a line with "Image URL: <image-url>"
matchline = ""
for line in html.splitlines():
    if "image url" in line.lower():
        matchline = line

# Extract the image-url from the html-line
imgurl = ""
for i in range(len(matchline)):
    if matchline[i] == ":":
        imgurl = matchline[i+1:]
        imgurl.strip()
        break

# Get image as stream
resp = requests.get(imgurl, stream=True)
resp.raw.decode_content = True

# Create new file, write to the file from the stream
filename = "wallpaper.png"
local_file = open(filename, "wb")
shutil.copyfileobj(resp.raw, local_file)
del resp

# Convert the image from PNG to BMP
Image.open(filename).save(filename := "wallpaper.bmp")

# Get the full path of the image
path = os.path.join(os.getcwd(), filename)

ctypes.windll.user32.SystemParametersInfoW(20, 0, path, 0)