Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial![](https://ecs-static.teamtreehouse.com/assets/views/marketing/shared/community-banner-white-47072046c51352fe6a69f5e691ff5700b28bb11d45197d7bdf066d9ea3f72d0c.webp)
![Anders Axelsen](https://secure.gravatar.com/avatar/8d7b6d9761b032dc31e188e1e7f78e63?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Anders Axelsen
3,471 PointsIs there a special way to rendering of add.html?
I only have access to the route, /
, and the def index(name="Anders"):
function.
The route, /add/
, only displays Not Found in browser.
#simple_app.py
from flask import Flask
from flask import render_template
app = Flask(__name__)
@app.route('/')
@app.route('/<name>')
def index(name="Anders"):
return "Hello {}".format(name)
@app.route('/add/<int:num1>/<int:num2>')
@app.route('/add/<float:num1>/<float:num2>')
@app.route('/add/<int:num1>/<float:num2>')
@app.route('/add/<float:num1>/<int:num2>')
def add(num1, num2):
return render_template("add.html")
app.run(debug=True, port=8000, host='0.0.0.0')
#add.html
<!doctype html>
<html>
<head>
<title>Adding!</title>
</head>
<body>
<h1>Num1 + num2 = Sum-thing!</h1>
</body>
</html>
1 Answer
![Chris Freeman](https://uploads.teamtreehouse.com/production/profile-photos/1153532/micro_image.jpg)
Chris Freeman
Treehouse Moderator 68,425 PointsCorrect. Because there isn't an explicit @app.route('/add/')
, going to that URL will not match. By adding this route, the function add()
will be run. But this will bring up another error. Do you see it?
If the function add()
is reached through the route '/add/' then the parameters num1
and num2
will not be defined. One fix would be to add default parameter values for num1 and num2 in the add()
function signature definition.
Post back if you need more help. Good luck!!!
Anders Axelsen
3,471 PointsAnders Axelsen
3,471 PointsThanks Chris.
My
add
code with concepts from your revision:I see this error,
jinja2.exceptions.TemplateNotFound
, running the code above.The error is unexpected for me, since my code is, seemingly, identical to the one of Kenneth.
Cheers!
Anders Axelsen
3,471 PointsAnders Axelsen
3,471 PointsSolved it by.... watching the entire video.. =) ~ Perks of gradual procedure.