写日志

import time

def write_log(content):
    with open('text.log','a+',encoding='utf-8') as fw:
        data = time.strftime('%Y-%m-%d %H:%M:%S')
        s = '%s，内容 %s'%(data,content)
        print(s)
        fw.write(s)

调用log模块

import nnlog
import time
log = nnlog.Logger('test.log',level='info',backCount=1,when='D')#设置默认级别，保留最新的1天log，1天生产1份log
log.debug('调试信息')
log.info('正常打印信息')
log.warning('警告')
log.error('错误信息')