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Python Flask Basics Welcome to Flask View Args Through URL

Flask: Add a new route to hello() that expects a name argument. The view will need to accept a name argument, too.

Hey all. I have been having a lot of trouble with the editor and Workspace on Chrome for Win 8.

The last few live quiz I tested in my Workspace and they worked but the quiz did not accept the answer after a few tries...not sure what's going on. It's difficult to see if I am doing the code right or wrong.

Anyway here is my code, is this right?

flask_app.py
from flask import Flask

app = Flask(__name__)


@app.route('/')
@app.route('/hello/<name>')
def hello():
     return 'Hello {}'.format(name)

4 Answers

You want to use __name__ to pass in for the app object, since it refers to the namespace. Name should be the parameter for the hello() view.

def hello(name):

Thank you. This make sense, so before I was trying to call the variable that had no parameters defined..!

Bo Yuan
Bo Yuan
20,928 Points
from flask import Flask

app = Flask(__name__)


@app.route('/')
@app.route('/<name>')
def hello(name):
     return 'Hello Student {}'.format(name)
Andrew Winkler
Andrew Winkler
37,738 Points

Well, this code answers question one and sort of goes into answering question 2...

They don't want the second route at python /hello/<name> , just at python /<name>. The hello() in the problem description refers to the view name that you are adding the route to.

Also, you need to make sure to add name as a parameter to the view, as per: "The view will need to accept a name argument, too."

John,

Thanks for the info.

So what am I doing wrong with the parameter here?

from flask import Flask

app = Flask(__name__)


@app.route('/<name>')
def hello():
     return 'Hello {}'.format('name')
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

Your view still doesn't take a name argument. The view is a function that has a route. So it should be hello(name), not just hello(). Also, you were supposed to add a new route that expects a name. The hello() view should have two routes by this point.

Kenneth thanks for the explanation. I started my first answer with this and was receiving errors that my first exercise was broken. When I made a new browser window and entered the same information it worked..

alex faroro
alex faroro
895 Points

from flask import Flask

app = Flask(name)

@app.route('/')

@app.route('/<name>')

def hello(name): return 'Hello Student {}'.format(name)