import logging

logging.debug('This is debug message') #debug
logging.info('This is info message')  #info
logging.warning('This is warning message') #warn

import logging

logging.basicConfig(level=logging.DEBUG,
  format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',
  datefmt='%Y-%m-%d %a %H:%M:%S',
  filename='test.log',
  filemode='w')
 
logging.debug('This is debug message')
logging.info('This is info message')
logging.warning('This is warning message')

 %(levelno)s: 打印日志級(jí)別的數(shù)值
 %(levelname)s: 打印日志級(jí)別名稱
 %(pathname)s: 打印當(dāng)前執(zhí)行程序的路徑，其實(shí)就是sys.argv[0]
 %(filename)s: 打印當(dāng)前執(zhí)行程序名
 %(funcName)s: 打印日志的當(dāng)前函數(shù)
 %(lineno)d: 打印日志的當(dāng)前行號(hào)
 %(asctime)s: 打印日志的時(shí)間
 %(thread)d: 打印線程ID
 %(threadName)s: 打印線程名稱
 %(process)d: 打印進(jìn)程ID
 %(message)s: 打印日志信息

#定義一個(gè)StreamHandler，將INFO級(jí)別或更高的日志信息打印到標(biāo)準(zhǔn)錯(cuò)誤，并將其添加到當(dāng)前的日志處理對(duì)象
console = logging.StreamHandler()
console.setLevel(logging.INFO)
formatter = logging.Formatter('%(name)-12s: %(levelname)-8s %(message)s')
console.setFormatter(formatter)
logging.getLogger('').addHandler(console)

#logger.conf
[loggers]
#定義logger模塊，root是父類，必需存在的，其它的是自定義。 
keys=root,infoLogger,warnlogger

[logger_root] 
level=DEBUG    #level 級(jí)別，級(jí)別有DEBUG、INFO、WARNING、ERROR、CRITICAL
handlers=infohandler,warnhandler #handlers 處理類，可以有多個(gè)，用逗號(hào)分開(kāi)

[logger_infoLogger]   #[logger_xxxx] logger_模塊名稱
handlers=infohandler
qualname=infoLogger   #qualname logger名稱，應(yīng)用程序通過(guò) logging.getLogger獲取。對(duì)于不能獲取的名稱，則記錄到root模塊。
propagate=0    #propagate 是否繼承父類的log信息，0:否 1:是

[logger_warnlogger]
handlers=warnhandler
qualname=warnlogger
propagate=0

###############################################
#定義handler
[handlers]
keys=infohandler,warnhandler

[handler_infohandler]
class=StreamHandler   #class handler類名
level=INFO    #level 日志級(jí)別
formatter=form02   #formatter，下面定義的formatter
args=(sys.stdout,)   #args handler初始化函數(shù)參數(shù)

[handler_warnhandler]
class=FileHandler
level=WARN
formatter=form01
args=('logs/deploylog.log', 'a')

###############################################
# 定義格式化輸出
[formatters]
keys=form01,form02

[formatter_form01]
format=%(message)s %(asctime)s
datefmt=%Y-%m-%d %H:%M:%S

[formatter_form02]
format=%(asctime)s %(levelname)s %(message)s
datefmt=%Y-%m-%d %H:%M:%S

from logging.config import fileConfig

fileConfig('logger.conf')
logger=logging.getLogger('infoLogger')
logger.info('test1')
logger_error=logging.getLogger('warnhandler')
logger_error.warn('test5')