Python HelloWorld (WebFrameworks) Collection

bottle_hello.py

# -*- coding: utf-8 -*-
from bottle import route, run


@route('/')
def index():
    return '<h1>Hello World/h1>'


run(host='localhost', port=8000)

django_hello.py

# -*- coding: utf-8 -*-

# Settings
from django.conf import settings


settings.configure(
    DEBUG=True,
    SECRET_KEY='secretfoobar',
    ROOT_URLCONF=__name__,
    MIDDLEWARE_CLASSES=(
        'django.middleware.common.CommonMiddleware',
        'django.middleware.csrf.CsrfViewMiddleware',
        'django.middleware.clickjacking.XFrameOptionsMiddleware',
    )
)


# Views
from django.http import HttpResponse
from django.conf.urls import url


def index(request):
    return HttpResponse('<h1>Hello Word</h1>')

# Routes
urlpatterns = (
    url(r'^$', index),
)


# RunServer
if __name__ == '__main__':
    from django.core.management import execute_from_command_line
    import sys

    execute_from_command_line(sys.argv)

falcon_hello.py

# -*- coding: utf-8 -*-
import falcon


class Index():
    def on_get(self, req, resp):
        resp.status = falcon.HTTP_200
        resp.body = '{"msg": "Hello World"}'


app = falcon.API()

app.add_route(r'/', Index())


if __name__ == '__main__':
    from wsgiref import simple_server
    httpd = simple_server.make_server('127.0.0.1', 8000, app)
    httpd.serve_forever()

flask_hello.py

# -*- coding: utf-8 -*-
from flask import Flask


app = Flask(__name__)


@app.route('/')
def index():
    return '<h1>Hello World</h1>'


app.run()

muffin_hello.py

# -*- coding: utf-8 -*-
import muffin


app = muffin.Application('hello')


@app.register('/')
def products(request):
    return {'hello': 'world'}

tornado_hello.py

# -*- coding: utf-8 -*-
import tornado.web
import tornado.httpserver
import tornado.ioloop


class IndexHandler(tornado.web.RequestHandler):
    def get(self):
        self.finish('<h1>Hello World</h1>')


if __name__ == '__main__':
    app = tornado.web.Application([(r'/', IndexHandler)])
    http_server = tornado.httpserver.HTTPServer(app)
    http_server.listen(8000)
    try:
        print('Server Start')
        tornado.ioloop.IOLoop.instance().start()
    except KeyboardInterrupt:
        print('Server Stop')

Thank you bro 😄

Needs a Morepath example. 😉