Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Flask Basics Welcome to Flask Multiply View

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 26,596 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)

Hahaha, Jeff Muday thank you so much.