Python logging模块配置指南：日志等级、文件处理与格式详解

import logging
import datetime
import os

# 定义日志级别字典
logLevelDic={
  "info":logging.INFO,
  "debug":logging.DEBUG,
  "warning":logging.WARNING,
  "error":logging.ERROR
}

# 日志保存路径
logSavePath=os.path.join(os.getcwd(),"logs")
if not os.path.exists(logSavePath):
  os.makedirs(logSavePath,exist_ok=True)
# 当前时间
curTime=datetime.datetime.now().strftime("%Y%m%d")
# 保存的日志的完整名称
logFile=os.path.join(logSavePath,curTime+".SADCI.log")
# 日志级别
logLevel="error"

class Logger:
  def __init__(self,logFile=logFile,logLevel=logLevelDic["error"]):
    self.logFile=logFile
    self.logLevel=logLevel
    # 设置logger名称
    self.logger=logging.getLogger()
    # 设置参数级别
    self.logger.setLevel(self.logLevel)
    self.formatter=logging.Formatter("%(asctime)s - %(filename)s[line:%(lineno)d] - %(levelname)s: %(message)s")
    # 判断handlers是否存在
    if not self.logger.handlers:
      # 写入控制台
      consoleStream=logging.StreamHandler()
      consoleStream.setLevel(self.logLevel)
      consoleStream.setFormatter(self.formatter)
      # 写入文件
      fileStream=logging.FileHandler(self.logFile,mode="a")
      fileStream.setLevel(self.logLevel)
      fileStream.setFormatter(self.formatter)
      self.logger.addHandler(consoleStream)
      self.logger.addHandler(fileStream)

def MyLogger():
  return Logger(logFile=logFile,logLevel=logLevelDic[logLevel]).logger


if __name__ == '__main__':
  MyLogger().error("test logg")