Flask
Templates with Jinja2
render_template() renders an HTML file from the
templates/ folder using Jinja2.
Example: rendering a list of posts
from flask import render_template
@app.route("/posts")
def posts():
posts = ["First post", "Second post"]
return render_template("posts.html", posts=posts)
# templates/posts.html:
# <ul>
# {% for post in posts %}
# <li>{{ post }}</li>
# {% endfor %}
# </ul>Renders a bulleted list: First post, Second postJinja2 uses the same {{ variable }} and
{% for %}/{% if %} tag style Django templates
use, no coincidence, since Jinja2 was directly inspired by Django's
template language. If you've read the Django tutorial's Templates lesson,
this syntax should already feel familiar.
from flask import render_template
@app.route("/posts")
def posts():
posts = ["First post", "Second post"]
return render_template("posts.html", posts=posts)
# templates/posts.html
# <ul>
# {% for post in posts %}
# <li>{{ post }}</li>
# {% endfor %}
# </ul>Renders a bulleted list containing "First post" and "Second post".