I made an adjustment for Python 3, I don't know if it's very good

server.py

#!/usr/bin/env python

'''
Taken from:
http://stackoverflow.com/users/1074592/fakerainbrigand
http://stackoverflow.com/questions/15401815/python-simplehttpserver
https://gist.github.com/chrisbolin/2e90bc492270802d00a6
'''


import os
from http.server import SimpleHTTPRequestHandler
import socketserver as SocketServer
from urllib.parse import urlparse

PORT = 8000
INDEXFILE = 'index.html'

class MyHandler(SimpleHTTPRequestHandler):
   def do_GET(self):

    # Parse query data to find out what was requested
    parsedParams = urlparse(self.path)

     # See if the file requested exists
    if os.access('.' + os.sep + parsedParams.path, os.R_OK):
        # File exists, serve it up
        SimpleHTTPRequestHandler.do_GET(self);
    else:
        # send index.html, but don't redirect
        self.send_response(200)
        self.send_header('Content-Type', 'text/html')
        self.end_headers()
        with open(INDEXFILE, 'rb') as fin:
            self.copyfile(fin, self.wfile)

Handler = MyHandler

httpd = SocketServer.TCPServer(("", PORT), Handler)

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