python2 csv写入和读取

下面提供一个工具类，关于把数据对象写入CSV和从CSV 读取出

class CSVUtil(object):
    @staticmethod
    def save_object_list(file_name, data_list):
        with open(file_name, "wb") as f:
            csv_writer = csv.writer(f)
            if not data_list:
                return
            for i, way in enumerate(data_list):
                assert isinstance(way, WayData)
                way_dict = way.__dict__
                if not i:
                    csv_writer.writerow(way_dict.keys())
                csv_writer.writerow(way_dict.values())
            print "save data list to %s done." % file_name

    @staticmethod
    def read_object_list_dict(file_name):
        assert os.path.exists(file_name)

        with open(file_name, "r") as csv_file:
            csv_reader = csv.DictReader(csv_file)
            data_dict_list = [d for d in csv_reader]
            return data_dict_list

python2.7写入 CSV时，写模式修改wb，否则会出现多余的空行。

读取的方法，返回对象的字典结构，关于字典结构 向对象的转换需另行搜索。