python 简单的单例模式日志模块

# -*- coding: utf-8 -*-import logging

def singleton(cls):
    instance = {}
    def _singleton(*args, **kw):
        if cls not in instance:
            instance[cls] = cls(*args, **kw)
        return instance[cls]
    return _singleton

@singleton
class TkLog(object):
    """docstring for ClassName"""
    def __init__(self):
        FORMAT = '%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s'
        logging.basicConfig(
                format=FORMAT,
                datefmt='%a, %d %b %Y %H:%M:%S',
                filename='/root/test/myapp.log',
                filemode='w')
        self.logger = logging.getLogger('icheer')
        
    def debug(self, data):
        self.logger.debug(data)

    def info(self, data):
        self.logger.info(data)

    def warn(self, data):
        self.logger.warning(data)

    def error(self, data):
        self.logger.error(data)

    def critical(self, data):
        self.logger.critical(data)
        
    def exception(self, data):
        self.logger.exception(data)

    def set_log_level(self, level):
        self.log_level = level
        self.logger.setLevel(self.log_level)