如何匹配和修改字典数组？答案

【问题标题】：How can I match & modify an array of dictionaries?如何匹配和修改字典数组？
【发布时间】：2019-11-07 21:30:31
【问题描述】：

我目前正试图匹配和修改两个字典。在较高的层次上，我有一个包含每个问题的潜在 answer_id 的字典：

[{'2194241222': 'Not at all likely - 0',
  '2194241223': '1',
  '2194241224': '2',
  '2194241391': '3',
  '2194241392': '4',
  '2194241393': '5',
  '2194241394': '6',
  '2194241395': '7',
  '2194241396': '8',
  '2194241397': '9',
  '2194241398': 'Extremely likely - 10'},
 {'2194241407': 'Very satisfied',
  '2194241408': 'Somewhat satisfied',
  '2194241409': 'Neither satisfied nor dissatisfied',
  '2194241410': 'Somewhat dissatisfied',
  '2194241411': 'Very dissatisfied'},
 {'2194241444': 'Extremely well',
  '2194241445': 'Very well',
  '2194241446': 'Somewhat well',
  '2194241447': 'Not so well',
  '2194241448': 'Not at all well'}

以及来自实际响应的一系列答案：

{'answers': [{'choice_id': '2194241397', 'row_id': '2194241221'}],
  'id': '331799110'},
 {'answers': [{'choice_id': '2194241408'}], 'id': '331799114'},
 {'answers': [{'choice_id': '2194241422'}], 'id': '331799115'},
 {'answers': [{'choice_id': '2194241445'}], 'id': '331799117'},
 {'answers': [{'choice_id': '2194241457'}], 'id': '331799122'},
 {'answers': [{'choice_id': '2194241466'}], 'id': '331799126'},
 {'answers': [{'choice_id': '2194241500'}], 'id': '331799128'},
 {'answers': [{'choice_id': '2194241535'}], 'id': '331799130'},
 {'answers': [{'choice_id': '2194241555'}], 'id': '331799132'}

如何将choice_id 数字替换为answer_id 字典的值？

所有answer_id 号码都是唯一的。

【问题讨论】：

标签： python arrays json python-3.x dictionary

【解决方案1】：

我认为你可以这样做：

# responseL - The array in the first snippet
# answerL - The array in the second snippet
# Convert responseL to a dictionary
responseD = { k: v for resp_typeD in responseL for k, v in resp_typeD.items() }

for answerD in answerL:
    for questionD in answerD['answers']:
        questionD['choice_id'] = responseD.get(questionD['choice_id'], "UNKNOWN")

【讨论】：

哇，这太棒了。这工作得很好，谢谢！我真的不明白发生了什么，但它是完美的。再次感谢！