Simple WSGI server and app

gistfile1.py

import socket
# see wsgiref.simple_server for a real implementation of a WSGI server

def serve(app):
    listener = socket.socket()
    listener.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    listener.bind(('', 8080))
    listener.listen(5)
    while True:
        s, addr = listener.accept()
        print 'server received connection from', addr
        request = s.recv(10000)
        print 'request we received:', request
        method, rest = request.split(' ', 1)
        path, rest = rest.split(None, 1)
        def start_response(status, headers):
            print 'sending headers'
            stuff = '\r\n'.join(['HTTP/0.9 '+status] + [k+': '+v for k, v in headers])
            print stuff
            s.send(stuff)
            s.send('\r\n\r\n')
        environ = {'REQUEST_METHOD': method, "PATH_INFO":path}
        for data in app(environ, start_response):
            print 'sending data'
            s.send(data)
        s.close()

def demo_app(environ, start_response):
    start_response("200 OK", [('Content-Type','text/plain')])
    return [('You asked to '+environ['REQUEST_METHOD']+' '+environ['PATH_INFO']), 'and that is what we just did!']

if __name__ == '__main__':
    serve(demo_app)