download_save_image.py

# pip install requests
 
import requests
 
from django.core.files import File
from django.core.files.temp import NamedTemporaryFile
 
def save_image_from_url(model, url):
    r = requests.get(url)
 
    img_temp = NamedTemporaryFile(delete=True)
    img_temp.write(r.content)
    img_temp.flush()
 
    model.image.save("image.jpg", File(img_temp), save=True)