无法将字符串转换为变量以进行dict值分配？

发布于 2025-01-29 03:37:24 字数 1941 浏览 2 评论 0原文

我目前正在撰写Lambda功能（Python 3.9），目的是寻找在各自国家庆祝假期的学生。首先，我有一个学生。json文件和一个文件夹，其中包含holday_folder在我的S3桶中的所有国家假期：

    (main directory)
    student.json
    holiday_folder
     (within holiday_folder)
     holiday_us.json
     holiday_cn.json
     holiday_my.json
     holiday_th.json
     the list goes on...

student.json文件具有以下内容内容：

{'student': [{'name':'Adam', 'location':'US'}, {'name':'Ben', 'location':'SG'}...]}

虽然所有节日json文件的结构类似于以下内容：

{ "holiday_us":[ { "date":"20220101", "desc":"New Year's Day" }, {"date"....}]}

要实现我的目标，i：

json.loads student.json content to variable Student> Student P>
创建一个名为code> nistry的列表，并运行A用于循环以仅附加“位置” “ 学生中所有学生的价值
创建另一个名为holday_calendar student变量的“位置”值/code>要存储转换的位置值aka转换['us'，sg'，...]到['holday_us'，'holday_sg'...]，以便我可以将这些列表值转换为可变名称以加载假期日期

在student上运行有条件的循环条件。循环将查看仅与特定学生相关的假日列表，并相应地返回价值。我不会对此深入研究，因为这不是问题的重点。

 国家
 holiday_calendar = []
 对于我的范围（Len（student））：
     如果学生[i] ['位置']不在国家 /地区：
         国家 /地区（学生[i] ['位置']）
         holiday_calendar.append（'Holiday_' +学生[i] ['location']。下（））

 print（holiday_calendar）＃输出：['Holiday_US'，'Holiday_sg'...]

 对于我的范围（0，Len（Holiday_Calendar））：

     打印（Holiday_Calendar [i]）
     当地人[holiday_calendar [i]] = json.loads（s3.Object（'my_s3_bucket'，'holiday_folder' + holday_calendar [i] +'.json'））。

我的问题是，我不能将holday_calendar列表值转换为变量。当我运行上述代码时，我会遇到此错误：

"errorMessage": "'builtin_function_or_method' object does not support item assignment",
"errorType": "TypeError"

我很确定该错误来自Globals（）行，因为我运行了代码的所有其他部分，并且它们都可以完美地工作。我还尝试了许多主题中建议的exec（）和当地人（）（），但没有奏效。有什么建议吗？

原文

I am currently writing a lambda function (python 3.9) with the objective of finding students who are celebrating holiday in their respective country. To start off, I have a student.json file and a folder containing all the countries' holiday in the holiday_folder in my S3 bucket:

    (main directory)
    student.json
    holiday_folder
     (within holiday_folder)
     holiday_us.json
     holiday_cn.json
     holiday_my.json
     holiday_th.json
     the list goes on...

The student.json file has the following content:

{'student': [{'name':'Adam', 'location':'US'}, {'name':'Ben', 'location':'SG'}...]}

While all the holiday json files are structured similarly as follow:

{ "holiday_us":[ { "date":"20220101", "desc":"New Year's Day" }, {"date"....}]}

To achieve my objective, I:

json.loads student.json content into variable student
Create a list called countries and run a for loop to append only the "location" values of all students in student variable
Create another list called holiday_calendar to store transformed location values a.k.a. transforming ['US', 'SG', ...] into ['holiday_us', 'holiday_sg' ...] so that I can convert these list values into variable names to load holiday dates

Run a conditional for loop on student. The loop will look into the holiday list that's only relevant to the specific student and return value accordingly. I wont be going deep on this as this is not the point of the question.

 countries = []
 holiday_calendar = []
 for i in range(len(student)):
     if student[i]['location'] not in countries:
         countries.append(student[i]['location'])
         holiday_calendar.append('holiday_' + student[i]['location'].lower())

 print(holiday_calendar) # output: ['holiday_us', 'holiday_sg'...]

 for i in range(0, len(holiday_calendar)):

     print(holiday_calendar[i])
     locals[holiday_calendar[i]] = json.loads(s3.Object('my_s3_bucket', 'holiday_folder' + holiday_calendar[i] + '.json')).get()['Body'].read())

My issue is that I cannot convert the holiday_calendar list values into variables. When I ran the above code, I got this error:

"errorMessage": "'builtin_function_or_method' object does not support item assignment",
"errorType": "TypeError"

I am pretty sure the error came from the globals() line as I have ran all the other parts of the code and they all worked flawlessly. I have also tried exec() and locals() as per suggested in a lot of SO topics but none worked. Any suggestions?

分享到QQ

分享到微博