parser.add_argument('inspector', metavar='INSPECTOR', type=str, nargs='?',
help='inspector url to report error',
default='http://127.0.0.1:12345/events')
parser.add_argument('inspector', metavar='INSPECTOR', type=str, nargs='?',
help='inspector url to report error',
default='http://127.0.0.1:12345/events')