py2从单个配置文件中,获取设置
    :param :
    :param ini:
    :return:

def _load_from_ini_py2(ini):
    """
    py2从单个配置文件中,获取设置
    :param :
    :param ini:
    :return:
    """
    logger.debug('使用PY2不支持自定义default_section，其默认值是:%s' % _DEFAULT_SECTION)
    cf = configparser.ConfigParser()
    cf.read(ini)
    settings = OrderedDict()
    for k, v in cf.defaults().items():
        settings[k.upper()] = convert_value(v)
    cf._defaults = {}
    for section in cf.sections():
        section_dict = OrderedDict()
        for option in cf.items(section):
            section_dict[option[0]] = option[1]
        settings[section] = section_dict
    return settings