srv.py

#!/usr/bin/env python3
import http.server
from http import HTTPStatus

class Handler(http.server.BaseHTTPRequestHandler):
    def do_GET(self):
        body = 'You requested: {}'.format(self.path).encode('utf-8')

        self.send_response(HTTPStatus.OK)
        self.send_header('Content-Type', 'text/plain; charset=utf-8')
        self.send_header('Connection', 'close')
        self.send_header('Content-Length', len(body))
        self.end_headers()
        self.wfile.write(body)
        self.wfile.flush()

server = http.server.HTTPServer(('127.0.0.1', 8000), Handler)
server.serve_forever()