Django upload image from URL to ImageField

django_upload_image_from_url_to_imagefield.py

# reference: https://goodcode.io/articles/django-download-url-to-file-field/

from tempfile import TemporaryFile
from os.path import basename
from urllib.parse import urlsplit
from django.core.files import File
import requests

class Foo(models.Model):
    
    cover_image = models.ImageField(null=True)
    
    def set_cover_image_from_url(self, url):

        # delete existing cover_image if available
        if self.cover_image:
            self.cover_image.delete()

        with TemporaryFile() as tf:
            r = requests.get(url, stream=True)
            for chunk in r.iter_content(chunk_size=4096):
                tf.write(chunk)

            tf.seek(0)
            self.cover_image.save(basename(urlsplit(url).path), File(tf))