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dynamic.aerospace.inc
Asked:2024-09-28 05:37:49 +0000 UTC2024-09-28 05:37:49 +0000 UTC

从Python中的列表获取值时出错

  • 772

我正在编写代码将数据加载到YAML文件中，我编写了一个将加载数据的类。但我遇到了这个错误：

Traceback (most recent call last):
  File "D:\Projects\ProjectsProgramming\PyCharmCommunity\OST\src\quiz\task_settings.py", line 36, in save_task_settings
    self.quiz_activated()
  File "D:\Projects\ProjectsProgramming\PyCharmCommunity\OST\src\quiz\task_settings.py", line 30, in quiz_activated
    self.result.save_exam_result()
  File "D:\Projects\ProjectsProgramming\PyCharmCommunity\OST\src\quiz\exam_result.py", line 18, in save_exam_result
    name_settings_file = self.exam_result[0]["Series"] + self.exam_result[0]["Number"]
                         ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
KeyError: 'Series'

代码：

from pathlib import Path
import yaml


class Result:
    def __init__(self):
        super().__init__()
        self.exam_result = []

    def add_data(self, data):
        self.exam_result.append(data)

    @staticmethod
    def get_root_dir():
        return Path(__file__).absolute().parent

    def save_exam_result(self) -> None:
        name_settings_file = self.exam_result[0]["Series"] + self.exam_result[0]["Number"]
        print(name_settings_file)
        with open((self.get_root_dir() / "exam").joinpath(name_settings_file + ".yaml"), "w") as outfile:
            new_dump = yaml.dump(self.exam_result)
            outfile.write(new_dump)
        return None

作为输入提供的列表的示例：

[{'CodeEducationalOrganization': 'gfdgd', 'PPECode': 'gdfg', 'NumberPC': 'dgd', 'NumberOption': 'gdgd', 'SettingsOption': '[Без дополнений]', 'CodeActivation': 'gdg'}]

如何修复这个错误？

python

1 个回答

  1. Best Answer

    该错误直接表明字典中没有与“Series”键的配对。此外，不会有“Number”对（基于作为列表输入给出的示例）。要修复该错误，您需要：

    1. 将键“Series”和“Number”对添加到字典中
    2. 或检查这些键是否对
    if 'Series' in exam_result[0].keys() and 'Number' in exam_result[0].keys():
    name_settings_file = self.exam_result[0]["Series"] + self.exam_result[0]["Number"]
else:
    <пары отсутствуют>
    • 1

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