Flask

Flask is a web framework library for Python.

Install Flask library:

pip3 install flask

initialise Flask application

app = Flask(__name__)

Define a route for the app:

@app.route('/')
def hello_world():
    return 'Hello, World!'

Run a Flask application:

if __name__ == '__main__':
    app.run()

Basic Example

import Flask, define application, define route, add code, run application

from flask import Flask ##Import Flask libraries

app = Flask(__name__) ##initialise Flask application

@app.route('/') ##define route for / (website.com/)
def hello_world(): ##python code for /
    return 'Hello, World!'

if __name__ == '__main__': ##running the application
    app.run()