Tiny HTTP server in python

tiny_httpd.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#         DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
#                     Version 2, December 2004 
#
#  Copyright (C) 2013 Clodéric Mars <cloderic.mars@masagroup.net> 
#
#  Everyone is permitted to copy and distribute verbatim or modified 
#  copies of this license document, and changing it is allowed as long 
#  as the name is changed. 
#
#             DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
#    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 
#
#   0. You just DO WHAT THE FUCK YOU WANT TO.

import os
import argparse
import SimpleHTTPServer
import BaseHTTPServer

defaultDirectory = "./"
defaultHost = "127.0.0.1"
defaultPort = 4000

def main():
    parser = argparse.ArgumentParser(description="Tiny HTTP server") 
    parser.add_argument("--directory", help="Served directory (default is {})".format(defaultDirectory), default=defaultDirectory)
    parser.add_argument("--host", help="Host to use (default is {})".format(defaultHost), default=defaultHost)
    parser.add_argument("--port", help="Port to use (default is {})".format(defaultPort), type=int, default=defaultPort)
    args = parser.parse_args()

    cwd = os.getcwd()
    os.chdir(args.directory)

    httpd = BaseHTTPServer.HTTPServer((args.host, args.port), SimpleHTTPServer.SimpleHTTPRequestHandler)

    sa = httpd.socket.getsockname()
    print "Serving {} on http://{}:{}".format(os.getcwd(), sa[0], sa[1])

    try:
        httpd.serve_forever()
    except KeyboardInterrupt:
        print "Server shutting down"
        httpd.socket.close()

    os.chdir(cwd)

if __name__ == "__main__" :
    main()