configparser读取配置文件时的相对路径问题

学习接口测试时,当我把配置文件xx.config和读取配置文件的模块read_config.py放在项目下的同一个包config里时,只需传入文件名xx.config即可实现对配置文件的读取. 但是当我在项目下另一个包里导入read_config.py后,再次传入要读取的配置文件名xx.config,却报错了!

Traceback (most recent call last):
  File "C:\Users\wangyi\AppData\Local\Programs\Python\Python36\lib\configparser.py", line 1138, in _unify_values
    sectiondict = self._sections[section]
KeyError: 'MOD'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/develop/lemon/tool/read_excel.py", line 88, in <module>
    button = ReadConfig().read_config('case.config','MOD','button')
  File "C:\develop\lemon\config\read_config.py", line 18, in read_config
    return cf.get(section,option)
  File "C:\Users\wangyi\AppData\Local\Programs\Python\Python36\lib\configparser.py", line 781, in get
    d = self._unify_values(section, vars)
  File "C:\Users\wangyi\AppData\Local\Programs\Python\Python36\lib\configparser.py", line 1141, in _unify_values
    raise NoSectionError(section)
configparser.NoSectionError: No section: 'MOD'

纠结了半天,始终找不出错误原因,想去百度一下,但是心想这么简单的问题难道我都解决不了还要去百度?那岂不是太没面子了呀! 我打开酷狗,放一首古琴曲, 试着让自己静下来,但窗外马路上的汽车鸣笛声让我静不下来,  突然发现, 会不会是路径有问题?

read_config部分如下:

class ReadConfig:
    def read_config(self,file_name,section,option):
        cf = configparser.ConfigParser()
        cf.read(file_name,encoding='utf-8')
        return cf.get(section,option)

if __name__ == '__main__':
    r = ReadConfig().read_config('case.config','MOD','button')
    print(r)

将寻找配置文件的路径改了一下,加了一行, 让你不管输入什么配置文件名都去config包里面去找:

class ReadConfig:
    def read_config(self,file_name,section,option):
        file = os.path.abspath(os.path.join(os.getcwd(),'..','config',file_name))
        cf = configparser.ConfigParser()
        cf.read(file,encoding='utf-8')
        return cf.get(section,option)

if __name__ == '__main__':
    r = ReadConfig().read_config('case.config','MOD','button')
    print(r)

大功告成, 哈