Python - logger configuration to log to file and print to stdout

main.py

import sys
import logging
from logging import handlers
from logging.handlers import RotatingFileHandler

LOG_PYTH = '/var/log/logging.log'
LOG_LEVEL = logging.DEBUG
LOG_BACKUP_COUNT = 10
LOG_MB = 1048576
LOG_MAX_BYTES = MB * 10

def init_logger(logger_name=None):
    logger = None
    try:
        
        if 
        logger = logging.getLogger(logger_name)
        logger.setLevel(LOG_LEVEL)
        format = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s', '%d-%m-%Y %H:%M:%S')

        # Write to stdout
        ch = logging.StreamHandler(sys.stdout)
        ch.setFormatter(format)
        logger.addHandler(ch)

        # Write to file
        fh = handlers.RotatingFileHandler(LOG_PYTH, maxBytes=LOG_MAX_BYTES, backupCount=BACKUP_COUNT)
        fh.setFormatter(format)
        logger.addHandler(fh)
    except Exception as ex:
        sys.stderr.write(f'Could not init logger: {ex}')
        sys.exit(1)
    else:
        return logger

def main():

    logger = init_logger()
    logger.info('info')
    logger.debug('debug')
    logger.warning('warning')
    logger.error('error')


if __name__ == "__main__":
    main()