Python logging is simple to use

import logging
import sys
import datetime

def init_logger(filename, 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

my_logger = init_logger(“./filename.log”, “ml_logger”)

my_logger.info(res_list)