flask Template Inheritance tutorial

Question

I am running through the flask tutorial and I can not seem to get the Template Inheritance to work. below are the examples of my code

My base.html is:

Answer 1

Jinja extends works (superficially) like Python subclassing. You don't get an instance of a subclass when you instantiate a parent class, and you don't get the result of a child template when rendering the base template. Render the child template instead.

return render_template('child.html')