Random wallpaper on Ubuntu

unsplash.py

#!/usr/bin/env python3

import random
import requests
import subprocess


topic = random.choice(
    ["meal", "food", "beverage", "wine", "bread", "restaurant", "work"]
)

url = f"https://source.unsplash.com/1920x1080/?{topic}"
print(url)

subprocess.call(["wget", "-nv", "-O", "/home/james/Downloads/wallpaper.jpg", url])

subprocess.call(
    [
        "gsettings",
        "set",
        "org.gnome.desktop.background",
        "picture-uri",
        f"file:///home/james/Downloads/wallpaper.jpg",
    ]
)

print(f"Set wallpaper {topic} succeed")

chmod a+x unsplash.py

Then update crontab

*/30 * * * * /home/james/unsplash.py