Django. How does {{MEDIA_URL}} work?

Question

Django

I'm trying to work with a FileField field in Django. I added this field (image) to the model, added an image to it through the admin panel (everything works correctly, saved it to the right folder). I want to display it in the template, for this I write But as a result, in the finished html code, the link looks like That is, the model field itself - works and stores a link to a specific image. But the {{MEDIA_URL}} tag is not converted to any address, which is why the photo is not displayed. Can someone explain why this MEDIA_URL field is indicated in settings at all? Everything is clear with MEDIA_ROOT - this is the full path to this folder, but what should be indicated in MEDIA_URL then? And why can't I see anything instead of it? Thanks
<img src="{{MEDIA_URL}}{{exemple.image}}">
<img src="my_photo.jpg">

Answer 1

In settings.py or any other settings module file add:

context_processors = [
    ...
    'django.template.context_processors.media',
]