Something that has bugged me for awhile is the requirement to copy and
paste an entire template when you would just like to override a single
block. This arises mostly when overriding admin templates, like
`admin/base.html`.
In my ideal world, I'd be able to do something like this:
# myapp/templates/admin/base.html
{% override "admin/base.html" %}
{% block footer %}this site is restricted, blah blah legal text blah{%
endblock %}
And then the template loading system would find the next `admin/base.html`
in the chain and use my overrides.
There is prior art too. https://pypi.org/project/django-apptemplates/
allows you to override a template from a specific app using this syntax:
# myapp/templates/admin/base.html
{% extends "admin:admin/base.html" %}
{% block footer %}this site is restricted, blah blah legal text blah{%
endblock %}
I think this kind of functionality should be included within Django itself.
If others agree, should there be a new name such as override, or would
overloading extends be good enough?
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