Python日志记录：dictConfig

Question

我想使用一个配置文件来配置Python日志记录，但也添加处理程序后，字典配置已被加载。所以我的配置文件是像

version: 1 
formatters: 
    default_formatter: 
    format: '%(asctime)s : %(levelname)s : %(message)s' 
    datefmt: '%d-%b-%Y %H:%M:%S' 
    plain_formatter: 
    format: '%(message)s' 
handlers: 
    console_default_handler: 
    class: logging.StreamHandler 
    level: INFO 
    formatter: default_formatter 
    stream: ext://sys.stdout 
root: 
    level: INFO 
    handlers: [console_default_handler] 

然后在代码 - 我做

log_config_dict=yaml.load(open(log_config_file, 'r')) 
logging.config.dictConfig(log_config_dict) 

我要以这种方式添加记录器 -

fhandler1=logging.FileHandler(log_file_name,mode="w") 
fhandler1.setFormatter(log_config_dict['formatters']['plain_formatter']) 
fhandler1.setLevel(logging.DEBUG) 

这是行不通的。有没有什么方法可以捕获在dictConfig中定义的获取值，以便在我的手动日志配置中使用它们？

谢谢

Answer 1

哦，我知道了。我需要做的是

formatter =logging.Formatter(log_config_dict['formatters']['plain_formatter']['format'])    
fhandler1.setFormatter(formatter) 

所以，我需要创建一个格式化的对象。

Answer 2

#!/usr/bin/env python 
# -*- coding: utf-8 -*- 

import logging 
import logging.handlers 
from logging.config import dictConfig 

logger = logging.getLogger(__name__) 

DEFAULT_LOGGING = { 
    'version': 1, 
    'disable_existing_loggers': False, 
} 
def configure_logging(logfile_path): 
    """ 
    Initialize logging defaults for Project. 

    :param logfile_path: logfile used to the logfile 
    :type logfile_path: string 

    This function does: 

    - Assign INFO and DEBUG level to logger file handler and console handler 

    """ 
    dictConfig(DEFAULT_LOGGING) 

    default_formatter = logging.Formatter(
     "[%(asctime)s] [%(levelname)s] [%(name)s] [%(funcName)s():%(lineno)s] [PID:%(process)d TID:%(thread)d] %(message)s", 
     "%d/%m/%Y %H:%M:%S") 

    file_handler = logging.handlers.RotatingFileHandler(logfile_path, maxBytes=10485760,backupCount=300, encoding='utf-8') 
    file_handler.setLevel(logging.INFO) 

    console_handler = logging.StreamHandler() 
    console_handler.setLevel(logging.DEBUG) 

    file_handler.setFormatter(default_formatter) 
    console_handler.setFormatter(default_formatter) 

    logging.root.setLevel(logging.DEBUG) 
    logging.root.addHandler(file_handler) 
    logging.root.addHandler(console_handler) 



[31/10/2015 22:00:33] [DEBUG] [yourmodulename] [yourfunction_name():9] [PID:61314 TID:140735248744448] this is logger infomation from hello module 

我想配置日志，功能更加方便。