How to install Flask Use Flask to create a minimal website Build routes in Flask to respond to website endpoints Use Variable Rules to pass parts of the URL to your functions as keyword parameters

Install:

pip install Flask

 

Development Mode:

run_local.sh:

#!/bin/bashexport FLASK_APP=app.pyexport FLASK_DEBUG=1flask run

 

app.py:

from flask import Flaskapp = Flask(__name__)@app.route('/')def hello_world():    return 'Hello world!'@app.route('/foo/')def foo():    return 'The foo page'@app.route('/bar')def bar():    return 'The bar page'@app.route('/hello/')@app.route('/hello/
     
      ')def say_hello(name=None):    return 'Hello {}'.format(user)