python logging模块自定义输出

约定不等于承诺〃 2022-07-21 02:46 181阅读 0赞

#!/usr/bin/env python
    # coding:utf-8
    
    """
    FuncName: logger.py
    Desc: output log to console and file
    Date: 2016-06-21 10:30
    Home: http://blog.csdn.net/z_johnny
    Author: johnny
    """
    
    from logging.handlers import RotatingFileHandler
    import logging
    import threading
    import ConfigParser
    
    class MyLog:
        def __init__(self, log_config):
            """
            init config and get value
            """
    
            self.logger = logging.getLogger('OutputLog')
            config = ConfigParser.ConfigParser()
            config.read(log_config)
    
            mythread=threading.Lock()
            mythread.acquire()                             # thread lock
        
            self.log_file_path = config.get('LOGGING', 'log_file_path')
            self.maxBytes = config.get('LOGGING', 'maxBytes')
            self.backupCount = int(config.get('LOGGING', 'backupCount'))
            self.outputConsole_level = int(config.get('LOGGING', 'outputConsole_level'))
            self.outputFile_level = int(config.get('LOGGING', 'outputFile_level'))
            self.outputConsole = int(config.get('LOGGING', 'outputConsole'))
            self.outputFile = int(config.get('LOGGING', 'outputFile'))
            self.formatter = logging.Formatter('%(asctime)s  - %(filename)s : %(levelname)s  %(message)s')
    
            mythread.release()                            # thread lock relax
    
        def outputLog(self):
            """
            output log to console and file
            """
            if self.outputConsole == 1 :
                # if true ,it should output log in console
                console_handler = logging.StreamHandler()
                console_handler.setFormatter(self.formatter)
                self.logger.setLevel(self.outputConsole_level)
                self.logger.addHandler(console_handler)
            else:
                pass       
     
            if self.outputFile == 1:
                file_handler = RotatingFileHandler(self.log_file_path, maxBytes=self.maxBytes, backupCount=self.backupCount)
                # define RotatingFileHandler, file output path, one file max byte, max backup number 
                file_handler.setFormatter(self.formatter)
                self.logger.setLevel(self.outputFile_level)
                self.logger.addHandler(file_handler)
            else:
                pass
     
            return self.logger
    
    mylog = MyLog('logConfig.ini')
    logger = mylog.outputLog()

**配置文件   logConfig.ini**

;说明 : 1兆字节(mb)=1024千字节(kb)  1千字节(kb)=1024字节(b)
      
    ;说明 : 日志级别 : CRITICAL = 50 ERROR = 40 WARNING = 30 INFO = 20 DEBUG = 10 NOTSET = 0
    
    ;maxBytes : 每个日志文件最大为多少字节，到达最大数后自动分割   例如：10M = 10*1024*1024   
    
    ;backupCount : 最多备份日志文件的数量
    
    ;outputConsole_level : 输出到控制台的日志信息等级，如为10，则只输出DEBUG及以上的信息
    
    ;outputFile_level : 输出到文件的日志信息等级
    
    ;log_file_path : 输出文件目录,支持绝对路径与相对路径 如 D:\Python\log.log 或 ./result/logging.log
    
    ;outputConsole = 1 开启控制台日志输出，0则关闭，outputFile = 1 开启文件日志输出， 0则关闭
    
    [LOGGING]
    maxBytes = 10*1024*1024
    backupCount = 10
    outputConsole_level = 10
    outputFile_level = 20
    log_file_path = ./logging.log
    outputConsole = 1
    outputFile = 1

**logging模块了解：**

**[logging介绍][logging]**

**[  
][logging]**

**[python logging 日志输出 学习笔记 ][python logging _]**

[python logging 替代print 输出内容到控制台和重定向到文件][python logging _print]

[logging]: http://blog.csdn.net/z_johnny/article/details/51727406
[python logging _]: http://blog.csdn.net/z_johnny/article/details/50812878
[python logging _print]: http://blog.csdn.net/z_johnny/article/details/50740528