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Python Flask with SQLAlchemy Basics Creating a Basic Website with Flask Template Inheritance

What is {% block link %} in jinja? I can't find any documentation on it or where it was referenced in the video.

I don't understand what the link block is or where to find information on it.

index.html
<!-- insert code here -->
{% extends "layout.html" %}

{% block link %} <a href="">Contact</a> {% endblock %}
layout.html
<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <meta name="description" content="Treehouse code chalenge practice.">
        <meta name="viewport" content="width=device-width, initial-scale=1">
    </head>
    <body>
        <h1>Practice Template Inheritance</h1>
        {% block link %}{% endblock %}
    </body>
</html>

I keep getting this error:

Traceback (most recent call last): File "", line 14, in test_app_code AssertionError: Regex didn't match: '\{\%[\sextnds\\'\"layou\.hm]+\%\}' not found in '\n{% block link %}\nContact\n{% endblock %}' : Your extend should start and end with curly bracket and percent symbols: {% %}

1 Answer

Jeff Muday
MOD
Jeff Muday
Treehouse Moderator 28,715 Points

Templates can be somewhat difficult to troubleshoot. I too don't see an error with your code. Unless you somehow did not get the syntax correct in the Python app (which you did not show).

A simple three-file application works as expected-- main.py, and then in the templates directory layout.html and index.html

A bit more of your code would be helpful!

from flask import Flask, render_template
app = Flask(__name__)

@app.route('/')
def tester():
    return render_template('index.html')

app.run(debug=True)