python logging模块书写日志以及日志分割详解

import logging,datetime,logging.handlers
from conf import settings
 
if __name__ == "__main__":
  #两个日志，错误日志和运行日志，输出文件路径及文件名
  error_log = settings.ERROR_LOG_FILE
  run_log = settings.RUN_LOG_FILE
 
  logger = logging.getLogger("mylog")
  logger.setLevel(logging.DEBUG)
 
  DATE_FORMAT = "%Y-%m-%d %H:%M:%S %p"
  LOG_FORMAT = "%(asctime)s------%(levelname)s[:%(lineno)d]-------%(message)s"
  #第一种普通写法
  #file_run_log = logging.FileHandler(run_log)
  #假如需要每日凌晨进行日志切割,注意导入模块时需要导入logging.handlers,否则报错
  #when参数可以设置S M H D,分别是秒、分、小时、天分割，也可以按周几分割，也可以凌晨分割
  file_run_log = rf_handler = logging.handlers.TimedRotatingFileHandler(run_log, when='midnight', interval=1, backupCount=7, atTime=datetime.time(0, 0, 0, 0))
 
  file_error_log = logging.FileHandler(error_log)
 
  file_run_log.setLevel(level=logging.INFO)
  file_run_log.setFormatter(logging.Formatter(LOG_FORMAT))
  file_error_log.setLevel(level=logging.ERROR)
  file_error_log.setFormatter(logging.Formatter(LOG_FORMAT))
 
  logger.addHandler(file_run_log)
  logger.addHandler(file_error_log)
 
  logger.info("info test")
  logger.error("error test")
  logger.critical("critical test")
 
 
 
  #普通全局写法
  # logging.basicConfig(level=logging.DEBUG,filename=run_log,format=LOG_FORMAT,datefmt=DATE_FORMAT)
 
  # logging.info("this is a log")
  # logging.warning("this is warning")

ERROR_LOG_FILE = os.path.join(BASE_DIR,"log","error.log")
RUN_LOG_FILE = os.path.join(BASE_DIR,"log","run.log")