def update_avatar(backend, details, response, social_user, uid, user, *args,
    **kwargs):
    if backend.__class__ == FacebookBackend:
        url = 'http://graph.facebook.com/%s/picture?type=large' % response['id'
            ]
avatar = urlopen(url)
profile = user.get_profile()
profile.profile_photo.save(slugify(user.username + ' social') + '.jpg',
    ContentFile(avatar.read()))
profile.save()
Сохраните изображение профиля facebook в модели, используя python-social-auth