App 7: Your First Website with Flask / Build a guestbook website
Lesson 2 of 10
Templates
Writing HTML inside Python gets messy. Put HTML in a templates folder and use render_template. Jinja lets you insert values with {{ }}.
Key points
- templates/index.html
- render_template("index.html", name=...)
- {{ name }} prints a value safely
# app.py
from flask import render_template
@app.route("/")
def home():
return render_template("index.html", name="Lazo")
<!-- templates/index.html -->
<h1>Hello, {{ name }}!</h1>Your turn
Move your page into templates/index.html and pass in your name.
Quiz · +10 XP
Where does Flask look for templates?
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