O registro em Python é simples de usar

importar registro
importar sys
importar data e hora

def init_logger(nome do arquivo, logger_name):
timestamp = datetime.datetime.utcnow().strftime('%Y%m%d_%H-%M-%S' )

logging.basicConfig(
    level=logging.INFO,
    format='[%(asctime)s] %(name)s {%(filename)s:%(lineno)d} %(levelname)s - %(message)s',
    #         format='%(message)s',
    handlers=[
        logging.FileHandler(filename=filename),
        logging.StreamHandler(sys.stdout)
    ]
)

# Test
logger = logging.getLogger(logger_name)
logger.info('### Init. Logger {} ###'.format(logger_name))
return logger

meu_logger = init_logger(“./nomedoarquivo.log”, “ml_logger”)

meu_logger.info(res_list)