# 程式碼設定
【輸出到螢幕】

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import logging
logging.basicConfig(level=logging.INFO,
format='%(asctime)s [%(levelname)s] %(filename)s[line:%(lineno)d] %(message)s',
datefmt='%Y-%m-%d %H:%M:%S')
logging.info("message")
logging.warning("message")
logging.error("message")

# 從配置檔案讀取

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#!/usr/bin/env python
# coding= utf-8
import logging
import logging.config
logging.config.fileConfig("etc/logger.conf")
lgs = "root,main,mysql,oracle,mongodb,os,alarm".split(",")
for lg in lgs:
msg = "test '%s' logger..." % (lg)
lg_logger = logging.getLogger(lg)
lg_logger.debug(msg)
lg_logger.info(msg)

# 配置檔案 logger.cnf

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###############################################
[loggers]
keys=root,main,mysql,oracle,mongodb,os,alarm

[logger_root]
qualname=root
level=DEBUG
handlers=root,main

[logger_main]
qualname=main
level=INFO
handlers=root,main

[logger_mysql]
qualname=mysql
level=INFO
handlers=mysql

[logger_oracle]
qualname=oracle
level=INFO
handlers=oracle

[logger_mongodb]
qualname=mongodb
level=INFO
handlers=mongodb

[logger_os]
qualname=os
level=INFO
handlers=os

[logger_alarm]
qualname=alarm
level=INFO
handlers=alarm

###############################################
[handlers]
keys=root,main,mysql,oracle,mongodb,os,alarm

[handler_root]
class=StreamHandler
formatter=form01
args=(sys.stderr,)

[handler_main]
class=handlers.RotatingFileHandler
formatter=form01
# 超過20M切換，保留3份
args=('logs/main.log', 'a', 20971520, 3)

[handler_mysql]
class=handlers.TimedRotatingFileHandler
formatter=form02
args=('logs/mysql.log', 'd', 1, 1)

[handler_oracle]
class=handlers.TimedRotatingFileHandler
formatter=form02
args=('logs/oracle.log', 'd', 1, 1)

[handler_mongodb]
class=handlers.TimedRotatingFileHandler
formatter=form02
# TimedRotatingFileHandler(filename, when='h', interval=1, backupCount=0, encoding=None, delay=False, utc=False)
# 每天切換一次，保留一份備份
args=('logs/mongodb.log', 'd', 1, 1)

[handler_os]
class=handlers.RotatingFileHandler
formatter=form02
# RotatingFileHandler(filename, mode='a', maxBytes=0, backupCount=0, encoding=None, delay=0)
# 超過10M切換，保留3份
args=('logs/os.log', 'a', 10485760, 3)

[handler_alarm]
class=handlers.RotatingFileHandler
formatter=form02
# 超過10M切換，保留1份
args=('logs/alarm.log', 'a', 10485760, 1)

###############################################
[formatters]
keys=form01,form02

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

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

Handler 說明：
formatter 屬性:

Python logging 模組使用

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