更新奇怪的字典列表中的值 [英] Updating values in weird list of dicts

问题描述

我有以下数据结构:

fields = [{'key': 'ADDRESS1', 'value': None}, {'key': 'ADDRESS2', 'value': None}]

请注意，此数据的结构超出了我的控制范围.但我必须处理它.

Please note, the structure of this data is outside of my control. But I have to work with it.

我将如何更新 valuekey"Object，其中 keykey"等于 >'ADDRESS1'，这样我就可以在操作后得到以下内容:

How would I go about updating the value "key" the Object where the key "key" is equal to, say 'ADDRESS1', such that I would have the following after manipulation:

注意更新必须根据 key 更新值，而不是对象的索引 - 因为这是松散定义的.

N.B. The update has to update the value based off of the key, not the index of the object - as this is loosely defined.

fields = [{'key': 'ADDRESS1', 'value': 'Some Address Value'}, {'key': 'ADDRESS2', 'value': None}]

推荐答案

d_list = [{'key': 'ADDRESS1', 'value': None}, {'key': 'ADDRESS2', 'value': None}] 

for d in d_list:
    if d['key'] == 'ADDRESS1':
        d['value'] = 'Some Address Value'

>>> d_list

[{'key': 'ADDRESS1', 'value': 'Some Address Value'}, {'key': 'ADDRESS2', 'value': None}]

EDIT:根据评论中的建议删除列表组合

EDIT: removed list comp as per suggestion in comments

这篇关于更新奇怪的字典列表中的值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！