封装读取配置文件的方法是否可以这样写

import configparser
class ReadIni():
    def __init__(self,file,node,key):
        self.file = file
        self.node = node
        self.key = key

    def get_value(self):
        cf = configparser.ConfigParser()
        cf.read(self.file,encoding='utf-8')
        value = cf.get(self.node,self.key)
        return value

readini = ReadIni('F:\selenium_test\config.ini','Element','user_num')
print(readini.get_value())