s.py

#!/usr/bin/env python
# only works with patched gevent from http://github.com/schmir/gevent

from gevent import tlmonkey
tlmonkey.patch_all()

import gevent
from gevent import tpool

import sys

response = ["hello world\n"]


def application(environ, start_response):
    start_response("200 OK", [("Content-Type", "text/html; charset=utf-8")])

    return response

def readline():
    while 1:
        res = tpool.spawn(sys.stdin.readline)
        line = res.get()
        print "GOT LINE:", repr(line)
        response.append(line)

if __name__ == "__main__":
    from gevent.pywsgi import WSGIServer

    address = "0.0.0.0", 8000
    server = WSGIServer(address, application)
    gevent.spawn(readline)

    try:
        print "Server running on port %s:%d. Ctrl+C to quit." % address
        server.serve_forever()
    except KeyboardInterrupt:
        server.stop()
        print "Bye."