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Python Flask Basics Welcome to Flask Multiply View

shawn Jones
shawn Jones
6,044 Points
Posted by shawn Jones
shawn Jones
6,044 Points

Change the response to multiply the two arguments and return their product

Change the response to multiply the two arguments and return their product

flask_app.py 
from flask import Flask

app = Flask(__name__)

@app.route('/multiply')
@app.route('/multiply/<num1>/<num2>')
@app.route('/multiply/<float:num1>/<float:num2>')
@app.route('/multiply/<float:num1>/<int:num2>')
@app.route('/multiply/<int:num1>/<float:num2>')
def multiply(num1=5, num2=5):

    return str(int(num1) * float(num2))

2 Answers

Lihua Yao
Lihua Yao
4,218 Points
Lihua Yao
Lihua Yao
4,218 Points

I don't understand this one either.

below is my code, I even tested and can get the correct result. But it still says "Didn't get a 200 at /multiply"

from flask import Flask

app = Flask(__name__)

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

def multiply(num1, num2):
    return '{} x {} = {}'.format(num1, num2, num1 * num2)
John Lack-Wilson
John Lack-Wilson
8,181 Points
John Lack-Wilson
John Lack-Wilson
8,181 Points

Hi Lihua, the problem here is that the challenge wants you to simply return the result, it is not asking you for a formatted string, therefore you just need to do this return statement: return str(num1 * num2)

Lihua Yao
Lihua Yao
4,218 Points
Lihua Yao
Lihua Yao
4,218 Points

I update my code as below, it passed:

from flask import Flask

app = Flask(__name__)

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

def multiply(num1=5, num2=5):
    return '{} x {} = {}'.format(num1, num2, num1 * num2)
John Lack-Wilson
John Lack-Wilson
8,181 Points
John Lack-Wilson
John Lack-Wilson
8,181 Points

Hi Shawn, the issue with your code is that you are casting num1 to an int and casting num2 to a float. Remove these and your code should pass the challenge.