server.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)
        environ = {'REQUEST_METHOD': method, "PATH_INFO":path}
        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')
        for data in app(environ, start_response):
            print 'sending data'
            s.send(data)
        s.close()

#WSGI: give me a function, I will call it with two things: the environment (a big dict of stuff you want)
# and a function that you should call with two arguments: the response code and the headers you want to send
class Request(object):
    """A fancy object to represent the request so we don't have to understand the ENVIRON dictionary"""
    def __init__(self, environ):
        self.path = environ['PATH_INFO']
        self.mathod = environ['REQUEST_METHOD']
    def get_split_path(self):
        import os; return os.path.split(self.path)

def wsgihandler(environ, start_response):
    start_response("200 OK", [('Content-Type','text/plain')])
    r = Request(environ)
    return [('You asked to '+r.method+' '+r.path), 'asdf']

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