fibserver.py

import SocketServer
import SimpleHTTPServer

PORT = 1339

def fibonacci (n):
    if n < 2:
        return 1
    else:
        return fibonacci(n - 2) + fibonacci(n - 1)

class CustomHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-Type', 'text/html')
        self.end_headers()
        self.wfile.write(fibonacci(40))
        return

httpd = SocketServer.ThreadingTCPServer(('localhost', PORT),CustomHandler)

print "serving at port", PORT
httpd.serve_forever()