python：更新列表中不同索引处的相同字典键答案

【问题标题】：python : update same dictionary keys at different index in a listpython：更新列表中不同索引处的相同字典键
【发布时间】：2020-03-01 13:39:51
【问题描述】：

我正在尝试使用 for 循环更新列表中不同索引处的相同字典键。我不确定这是否是使用 python 代码执行此操作的允许格式/方式。任何帮助将不胜感激。

rc_description_final=["Apple","Orange", "Pineapple"]
rc_action_final = ["Red", "Fruit", "Yellow"]
k=0
while k < len(IDs):
    temp={}
    rc = {}
    temp['Rate'] = [rc]
    d = 0
    print(rc_description_final)
    print(len(rc_description_final))
    while d < len(rc_description_final):

        temp['Rate'][d]['Description'] = rc_description_final[d]

        temp['Rate'][d]['Action'] = rc_action_final[d]

        temp['Rate'].append(rc)

        d = d + 1
    json.dumps(temp)
    print(json.dumps(temp))
    k = k + 1

我希望输出为：

{
    "Rate Limits": [
      {
        "Description": "Apple",
        "Action": "Red"
      },
      {
        "Description": "Orange",
        "Action": "Fruit"
      },
      {
        "Description": "Pinapple",
        "Action": "Yellow"
      }
    ]
}

但我得到的输出是：

{
    "Rate Limits": [
    {
        "Description": "Pinapple",
        "Action": "Yellow"
     },
    {
        "Description": "Pinapple",
        "Action": "Yellow"
     },
    {
        "Description": "Pinapple",
        "Action": "Yellow"
     }
    ]
}

【问题讨论】：

标签： json python-3.x dictionary

【解决方案1】：

在您的情况下，我在“temp['Rate'] = [rc]”处发现了问题。所以当 temp['Rate'] 改变时，rc 值会自动改变。这将引导您到此输出。

这是我的代码供您参考：

import json

rc_description_final=["Apple","Orange", "Pineapple"]
rc_action_final = ["Red", "Fruit", "Yellow"]
k=0
while k < 1:
  temp={}
  temp['Rate'] = []
  d = 0
  print(rc_description_final)
  print(len(rc_description_final))
  while d < len(rc_description_final):
    description_dict = {}

    description_dict['Description'] = rc_description_final[d]
    description_dict['Action'] = rc_action_final[d]

    temp['Rate'].append(description_dict)

    d = d + 1
json.dumps(temp)
print(json.dumps(temp))
k = k + 1

【讨论】：