将 JSON 字符串保存在动态全局字典中，python

发布于 2025-01-12 12:58:10 字数 407 浏览 3 评论 0原文

我是Python新手。我有多个 JSON 消息通过 MQTT 代理发送到 python 应用程序，具有相同的键但不同的值。我想做的是根据某个值将 JSON 字符串存储在动态全局字典中，并且它将被每个具有相同值的新消息替换。然后我可以从任何函数获取这些值。

例如：如果我有以下消息，

{'timestamp': 1646682501888, 'description': 'address', 'postal': 'AAA', 'city': 'ABC'}

我想在第一条记录中保存该消息的记录，其中城市为 ABC，邮政为 AAA，如果城市为“EFG”，邮政为“ZZZ”，则将其存储在第二条记录中记录，每当有新消息到来时，如果它具有相同的城市和邮政地址，它就会更新完整的消息。我想知道如何从任何函数访问字典中的值。谢谢

原文

I am new to python. I have multiple JSON messages coming to the python application trough MQTT broker with the same keys but different values. what I am trying to do is to store the JSON string on a dynamic global dictionary according to a certain value and it will be replaced with each new messages has that same value.
then I can reach these values from any functions.

for example: if I have the following message

{'timestamp': 1646682501888, 'description': 'address', 'postal': 'AAA', 'city': 'ABC'}

I want to save a record of this message when city is ABC and postal is AAA in the first record, and if the city is "EFG" and postal is "ZZZ" store it in a second record,
than whenever a new message is coming it will update the full message if it has the same city and postal. please I want to know how to access values in the dictionary from any function.
thanks

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