from http import HTTPStatus
from http.server import BaseHTTPRequestHandler, HTTPServer

class SimpleHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(HTTPStatus.OK)
        self.send_header("Content-Type", "text/plain; charset=utf-8")
        self.end_headers()
        self.wfile.write("Сервер работает".encode("utf-8"))

if __name__ == "__main__":
    server = HTTPServer(("127.0.0.1", 8000), SimpleHandler)
    print("Откройте http://127.0.0.1:8000")
    server.serve_forever()