#!/usr/bin/env pythonimport sys, paramikohostname = ''password = ''command = 'ls'username = ""port = 22try:    client = paramiko.SSHClient()    client.load_system_host_keys()    client.set_missing_host_key_policy(paramiko.WarningPolicy)    client.connect(hostname, port=port, username=username, password=password)    stdin, stdout, stderr = client.exec_command(command)    print(stdout.read(), end='')finally:    client.close()