CODEWITHSUNDEEP
pythonflask
Ravi R
Ravi R

Reputation: 11

Flask app not running

from flask import Flask
app = Flask(__name__)

@app.route("/")
def index():
    return "Index!"

@app.route("/hello")
def hello():
    return "Hello World!"

@app.route("/members")
def members():
    return "Members"



if __name__ == "__main__":
    app.run(debug=True)

I am trying to run the above example program, I am not sure how to check the output in browser. I tried the links - http://127.0.0.1:5000/hello , http://127.0.0.1:5000/members nothing come up. Help me if I am missing anything ?

Upvotes: 0

Views: 15559

Answers (2)

simanacci
simanacci

Reputation: 2354

If you are new to Flask follow these steps and you will be able to view the paths on a browser. First install virtualenv & pip. 

sudo apt-get install python-virtualenv
sudo apt-get install python-pip

Create a directory wher you will store your object. 

mkdir yourflaskapp
cd yourflaskapp

Create your virtual environment where you will install flask. 

virtualenv yourvirtualenv

After succesfully creating your virtual environment, activate it using the following command. To deactivate type and run deactivate. 

source yourvirtualenv/bin/activate

Now install flask in your virtual environment. 

pip install flask

Create file app.py below then run python app.py.

from flask import Flask
app = Flask(__name__)

@app.route("/")
def index():
    return "Index!"

@app.route("/hello")
def hello():
    return "Hello World!"

@app.route("/members")
def members():
    return "Members"

if __name__ == "__main__":
    app.run(debug=True)

Upvotes: 0

Tony Vincent
Tony Vincent

Reputation: 14362

Make sure Flask is installed in your system you can try something like $ pip freeze | grep flask, if not run

$ pip install Flask

And when you run your app like $ python <filename>.py you see something like 

* Running on http://localhost:5000/

Upvotes: 1

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