server.py

from http.server import HTTPServer, BaseHTTPRequestHandler

class Handler(BaseHTTPRequestHandler):
    def do_GET(self):
        if self.path == '/hello':
            self.send_response(200)
            self.send_header('Content-Type', 'text/plain')
            self.end_headers()
            self.wfile.write(b'hello !')
        else:
            self.send_response(404)
            self.end_headers()

    def log_message(self, *a):
        pass

HTTPServer(('', 8000), Handler).serve_forever()