simple callback server for oauth2. quits itself once code is retrieved

callback_server.py

import threading, webbrowser
from http.server import BaseHTTPRequestHandler, HTTPServer
from urllib.parse import urlparse, parse_qs

class S(BaseHTTPRequestHandler):
    def do_GET(self):
        code = parse_qs(urlparse(self.path).query)['code'][0]
        threading.Thread(target=httpd.shutdown, daemon=True).start() 

def callback_server(server_class=HTTPServer, handler_class=S, port=8080):
    global httpd
    httpd = server_class((localhost, 5003), handler_class)
    httpd.serve_forever()