Python模块-logging模块(一)

时间：2018-02-15 20:15:29 阅读：256 评论：0 收藏：0 [点我收藏+]

标签：dna mes config 完整路径 python模块 serve 模块路径名 evel

logging模块用来写日志文件

有5个级别，debug()，info()，warning()，error()和critical()，级别最高的为critical()

debug()为调试模式，info()为正常情况下的信息，warning()为警告，error()为错误，critical()为严重问题

普通的打印

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.debug(‘The debug‘)
logging.info(‘The info‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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5个级别中只打印了警告级别及之后的语句

写入日志文件

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(filename=‘log_test.log‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

level=loggin.INFO，把日志级别设置为INFO，只有INFO或比INFO级别更高的日志才会被写到日志文件里

写入日志文件的内容

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只从info级别开始写入内容，debug级别比info低，没有写入

日志格式化

%(name)s 日志写入者的名称

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(name)s‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

技术分享图片

%(levelno)s 数字形式的日志级别，%(levelname)s 文本形式的日志级别

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(levelno)s,%(levelname)s‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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%(lineno)d 调用日志输出函数的语句所在的代码行

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(lineno)d‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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%(pathname)s 调用日志输出函数的模块的完整路径名

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(pathname)s‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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%(filename)s 调用日志输出函数的模块的文件名

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(filename)s‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

技术分享图片

%(module)s 调用日志输出函数的模块名

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(module)s‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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就是文件名，没有后缀

%(funcName)s 调用日志输出函数的函数名

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(funcName)s‘,level=logging.INFO)

def log_test():
    logging.debug(‘This python is running‘)
    logging.info(‘The infomation of python‘)
    logging.warning(‘Request outtime‘)
    logging.error(‘The python run error‘)
    logging.critical(‘The server down‘)

log_test()

运行结果

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%(created)f 当前时间，用UNIX标准的表示时间的浮点数表示

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(created)f‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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%(relativeCreated)d 输出日志信息自创建以来的毫秒数

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging
import time

logging.basicConfig(format=‘%(relativeCreated)d‘,level=logging.INFO)

logging.debug(‘This python is running‘)
time.sleep(2)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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结果是不定的

%(asctime)s 字符串形式的当前时间，默认格式为“2018-02-15 17:59:31,546”，逗号后面的是毫秒

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(asctime)s‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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%(thread)d 当前线程号，%(threadName)s 当前线程名

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(thread)d,%(threadName)s‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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%(process)d 进程号

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(process)d‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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%(message)s 用户输出的消息

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(format=‘%(message)s‘,level=logging.INFO)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

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格式化的日志写入

# -*- coding:utf-8 -*-
__author__ = "MuT6 Sch01aR"

import logging

logging.basicConfig(filename=‘log_test.log‘,level=logging.INFO,format=‘%(message)s‘,datefmt=‘%m‘)

logging.debug(‘This python is running‘)
logging.info(‘The infomation of python‘)
logging.warning(‘Request outtime‘)
logging.error(‘The python run error‘)
logging.critical(‘The server down‘)

运行结果

技术分享图片

Python模块-logging模块(一)

标签：dna mes config 完整路径 python模块 serve 模块路径名 evel

原文地址：https://www.cnblogs.com/sch01ar/p/8449752.html

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