Python 输出 log 到文件的方法

import logging
from logging.handlers import RotatingFileHandler

module_name = "test_module"
Rthandler = RotatingFileHandler("/var/lib/test_log/%s.log" % (module_name), maxBytes=10 * 1024 * 1024, backupCount=5)
Rthandler.setLevel(logging.INFO)
formatter = logging.Formatter("%(asctime)s - %(filename)s[line:%(lineno)d] - %(levelname)s: %(message)s")
Rthandler.setFormatter(formatter)
logger = logging.getLogger(module_name)
logging.basicConfig(level=logging.NOTSET)
logger.addHandler(Rthandler)