Download space wide screen images with Python

Photo by NASA on Unsplash

Download space wide screen images with Python

And add it as your MacOS background

So I would like a new wallpaper every day from outer space.

I love Python so I was thinking about writing a python code to automate this.

So the assignment is:

Create a python script that daily downloads a ultra widescreen image from the galaxy and place it as macos background

To create a Python script that downloads a daily ultra widescreen image from the galaxy and sets it as the macOS background, you can follow these steps:

  1. Install the necessary libraries

  2. Download the image from a source of your choice

  3. Save the image locally

  4. Set the image as the macOS background

Here's a Python script that demonstrates this process using the NASA Astronomy Picture of the Day (APOD) API:

import os
import requests
import json
from datetime import datetime
from appscript import app, mactypes

# Get the APOD API Key from

def download_image(url, filename):
    response = requests.get(url)
    with open(filename, 'wb') as file:

def set_macos_background(filename):

def main():
    date ='%Y-%m-%d')
    api_url = f'{date}&api_key={API_KEY}'

    response = requests.get(api_url)
    apod_data = json.loads(response.text)

    image_url = apod_data['hdurl']
    file_ext = os.path.splitext(image_url)[1]
    filename = os.path.expanduser(f'~/Pictures/apod_{date}{file_ext}')

    download_image(image_url, filename)

if __name__ == '__main__':

To run this script, you'll need to install the appscript library, which you can install using:

pip install appscript

Replace 'YOUR_API_KEY' with your NASA API key, which you can obtain from Please note that this script is designed for macOS, and the NASA APOD API may not always provide an ultra-widescreen image.

To run the script daily, you can set up a cron job on your Mac:

  1. Open Terminal

  2. Type env EDITOR=nano crontab -e and press Enter

  3. Add the following line to the file:

0 0 * * * /path/to/python3 /path/to/
  1. Replace /path/to/python3 with the path to your Python 3 interpreter (use which python3 to find it) and /path/to/ with the path to your script file

  2. Save the file and exit (Ctrl+X, Y, Enter)

This will set up a daily cron job to run the script at midnight.

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