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

Python Flask Basics Welcome to Flask Multiply View

Posted by Tapiwanashe Jandura
Tapiwanashe Jandura
2,677 Points

ValueError: malformed url rule: '/multiply/<int:num1>/<int:num2'

I need help here. I don't know what I've done wrong

flask_app.py 
from flask import Flask

app = Flask(__name__)

@app.route('/')
@app.route('/multiply')
@app.route('/multiply/<int:num1>/<int:num2')

def multiply(num1=5, num2=5):
    return str(num1 * num2)

1 Answer

Jeff Muday
MOD
Jeff Muday
Treehouse Moderator 28,722 Points
Jeff Muday
Jeff Muday
Treehouse Moderator 28,722 Points

You are missing a '>' character at the end of the last route rule.

The change below will fix your issue--

from flask import Flask

app = Flask(__name__)

@app.route('/')
@app.route('/multiply')
@app.route('/multiply/<int:num1>/<int:num2>')

def multiply(num1=5, num2=5):
    return str(num1 * num2)
Tapiwanashe Jandura
Tapiwanashe Jandura
2,677 Points

Hahaha, Jeff Muday thank you so much.