#!/bin/env python

try:
    main()
finally:
    input("Bye World")

def main():
    try:
        # Python 2.x
        from SocketServer import ThreadingMixIn
        from SimpleHTTPServer import SimpleHTTPRequestHandler
        from BaseHTTPServer import HTTPServer
    except ImportError:
        # Python 3.x
        from socketserver import ThreadingMixIn
        from http.server import SimpleHTTPRequestHandler, HTTPServer

    class ThreadingSimpleServer(ThreadingMixIn, HTTPServer):
        pass

    import sys
    import os

    port = ''

    if sys.argv[1:]:
        port = sys.argv[1]

    if not port.isdigit():
        while True:
            try:
                port = int(input("Enter port (default = 80): "))
            except ValueError:
                print("INVALID PORT")
                continue
            else:
                break

    port = int(port)
    directory = ''
    if sys.argv[2:]:
        directory = sys.argv[2]

    if not os.path.isdir(directory):
        directory = input("Enter directory to start server: ")

    while not os.path.isdir(directory):
            print("INVALID DIRECTORY!")
            directory = input("Enter directory to start server: ")

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

    print(“\033[H\033[J”)
    print ('Server started on port %s at %s' % (port, directory))
    print ('Close Command Window to end.')

    server = ThreadingSimpleServer(('', port), SimpleHTTPRequestHandler)
    try:
        while 1:
            sys.stdout.flush()
            server.handle_request()
    except KeyboardInterrupt:
        print("Finished")

    return