代码
#Author Kang
import logging
logging.basicConfig(filename="app.log",level=logging.WARNING,format='%(asctime)s %(levelname)s: %(message)s', datefmt='%m/%d/%Y %I:%M:%S %p')
logging.info("app info test")
logging.warning("app warning message")
logging.error("app error message")
#filename:app.log文件,用于保存日志输出信息
#level:日志级别
#format:日志输出的格式
结果:app.log文件信息
02/18/2019 06:27:10 PM WARNING: app warning message
02/18/2019 06:27:10 PM ERROR: app error message