Simple asyncio & wsgiref server

import asyncio
from aiowsgiref import run

@asyncio.coroutine
def demo_app(environ, start_response):
    status = '200 OK' # HTTP Status
    headers = [('Content-type', 'text/plain')]  # HTTP Headers
    start_response(status, headers)
    return [b'Hello World']

run('127.0.0.1', 8000, demo_app)