in s3booster-snowball-v1.py [0:0]
def setup_logger(logger_name, log_file, level=logging.INFO):
l = logging.getLogger(logger_name)
formatter = logging.Formatter('%(message)s')
fileHandler = logging.FileHandler(log_file, mode='a', encoding='utf-8')
fileHandler.setFormatter(formatter)
streamHandler = logging.StreamHandler()
streamHandler.setFormatter(formatter)
l.setLevel(level)
l.addHandler(fileHandler)