Python3的http.server.HTTPServer在本地主机上有一秒的延迟

import http.server
import socketserver
import threading

class ThreadedHTTPServer(socketserver.ThreadingMixIn, http.server.HTTPServer):
    pass

class RequestHandler(http.server.SimpleHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.end_headers()
        self.wfile.write(b'Hello, world!')

if __name__ == "__main__":
    server = ThreadedHTTPServer(('localhost', 8000), RequestHandler)
    server_thread = threading.Thread(target=server.serve_forever)
    server_thread.daemon = True
    server_thread.start()
    print("Server loop running in thread:", server_thread.name)

from sanic import Sanic
from sanic.response import text

app = Sanic("MyHelloWorldApp")

@app.route("/")
async def test(request):
    return text("Hello, world!")

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=8000)