使用Python将内容追加到一个JSON文件中

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英文:

Append to a json file using python

问题

  1. 尝试向嵌套的json文件追加内容
  3. 我的目标是向一个JSON文件中追加一些值。
  5. 这是我的原始JSON文件：
  7. {
  8.     "web": {
  9.         "all": {
  10.           "side": {
  11.             "tags": [
  12.               "admin"
  13.             ],
  14.             "summary": "Generates",
  15.             "operationId": "Key",
  16.             "consumes": [],
  17.             "produces": [
  18.               "application/json"
  19.             ],
  20.             "responses": {
  21.               "200": {
  22.                 "description": "YES",
  23.                 "schema": {
  24.                   "type": "string"
  25.                 }
  26.               }
  27.             },
  28.             "Honor": [
  29.               {
  30.                 "presidential": []
  31.               }
  32.             ]
  33.           }
  34.         }
  36.     }
  37. }
  39. 我打算在键“Honor”内添加两行额外的内容，值分别为“Required”:“YES”和“Prepay”:“NO”。追加这两个值后，我将得到以下JSON文件：
  41. {
  42.     "web": {
  43.         "all": {
  44.           "side": {
  45.             "tags": [
  46.               "admin"
  47.             ],
  48.             "summary": "Generates",
  49.             "operationId": "Key",
  50.             "consumes": [],
  51.             "produces": [
  52.               "application/json"
  53.             ],
  54.             "responses": {
  55.               "200": {
  56.                 "description": "YES",
  57.                 "schema": {
  58.                   "type": "string"
  59.                 }
  60.               }
  61.             },
  62.             "Honor": [
  63.               {
  64.                 "presidential": [],
  65.                 "Required" : "YES",
  66.                 "Prepay"   : "NO"
  67.               }
  68.             ]
  69.           }
  70.         }
  72.     }
  73. }
  75. 以下是我编写的Python代码：
  77. ```python
  78. import json
  79. def write_json(data,filename ="exmpleData.json"):
  80.     with open(filename,"w") as f:
  81.         json.dump(data,f,indent=2)
  82. with open ("exmpleData.json") as json_files:
  83.     data= json.load(json_files)
  84.     temp = data["Honor"]
  85.     y = {"required": "YES","type": "String"}
  86.     temp.append(y)
  87. write_json(data)

我收到以下错误消息：

** temp = data["Honor"] KeyError: 'Honor' **

我将不胜感激地接受您提供的任何指导，以帮助我实现我的目标。我正在运行Python 3.7

  2. <details>
  3. <summary>英文:</summary>
  4. Trying to append to a nested json file 
  5. My goal is to append some values to a JSON file. 
  6. Here is my original JSON file

{
"web": {
"all": {
"side": {
"tags": [
"admin"
],
"summary": "Generates",
"operationId": "Key",
"consumes": [],
"produces": [
"application/json"
],
"responses": {
"200": {
"description": "YES",
"schema": {
"type": "string"
}
}
},
"Honor": [
{
"presidential": []
}
]
}
}

  1. }

}

  1. It is my intention to add two additional lines inside the key &quot;Honor&quot;, with the values &quot;Required&quot; : &quot;YES&quot; and &quot;Prepay&quot; : &quot;NO&quot;. As a result of appending the two values, I will have the following JSON file.

{
"web": {
"all": {
"side": {
"tags": [
"admin"
],
"summary": "Generates",
"operationId": "Key",
"consumes": [],
"produces": [
"application/json"
],
"responses": {
"200": {
"description": "YES",
"schema": {
"type": "string"
}
}
},
"Honor": [
{
"presidential": [],
"Required" : "YES",
"Prepay" : "NO"
}
]
}
}

  1. }

}

  1. Below is the Python code that I have written

import json
def write_json(data,filename ="exmpleData.json"):
with open(filename,"w") as f:
json.dump(data,f,indent=2)
with open ("exmpleData.json") as json_files:
data= json.load(json_files)
temp = data["Honor"]
y = {"required": "YES","type": "String"}
temp.append(y)
write_json(data)

  1. I am receiving the following error message:
  2. ** temp = data[&quot;Honor&quot;] KeyError: &#39;Honor&#39; 
  3. **
  4. I would appreciate any guidance that you can provide to help me achieve my goal. I am running Python 3.7
  5. </details>
  6. # 答案1
  7. **得分**: 1
  8. '`Honor`' 深度嵌套在其他字典中，其值是包含一个字典的 1 元素列表。以下是如何访问：
  9. ```py
  10. import json
  11. def write_json(data, filename='exmpleData.json'):
  12. with open(filename, 'w') as f:
  13. json.dump(data, f, indent=2)
  14. with open('exmpleData.json') as json_files:
  15. data = json.load(json_files)
  16. # 'Honor' 深度嵌套在其他字典中
  17. honor = data['web']['all']['side']['Honor']
  18. # 其值是包含另一个字典的 1 元素列表
  19. honor[0]['Required'] = 'YES'
  20. honor[0]['Prepay'] = 'NO'
  21. write_json(data)
英文:

&#39;Honor&#39; is deeply nested in other dictionaries, and its value is a 1-element list containing a dictionary. Here's how to access:

  1. import json
  3. def write_json(data, filename=&#39;exmpleData.json&#39;):
  4.     with open(filename, &#39;w&#39;) as f:
  5.         json.dump(data, f, indent=2)
  7. with open(&#39;exmpleData.json&#39;) as json_files:
  8.     data = json.load(json_files)
  9.     # &#39;Honor&#39; is deeply nested in other dictionaries
  10.     honor = data[&#39;web&#39;][&#39;all&#39;][&#39;side&#39;][&#39;Honor&#39;]
  11.     # Its value is a 1-element list containing another dictionary.
  12.     honor[0][&#39;Required&#39;] = &#39;YES&#39;
  13.     honor[0][&#39;Prepay&#39;] = &#39;NO&#39;
  15. write_json(data)

答案2

得分: 1

我建议你再练习一下基础知识，因为在处理数据结构时你犯了许多错误。好消息是，你的JSON加载/转储是正确的。

你的错误消息的原因是数据没有一个名为"Honor"的属性。数据只有一个名为"web"的属性，其中包含一个名为"all"的属性，其中包含一个名为"side"的属性，其中包含一个名为"Honor"的属性，其中包含一个包含你要添加的属性的字典的数组。因此，你可以使用以下方式将temp设置为temp = data['web']['all']['side']['Honor'][0]。

你也不能在Python字典上使用append。相反，查看dict.update()。

英文:

I'd recommend that you practice your fundamentals a bit more since you're making many mistakes in your data structure handling. The good news is, your JSON load/dump is fine.

The cause of your error message is that data doesn't have an "Honor" property. Data only has a "web" property, which contains "all" which contains "side" which contains "Honor", which contains an array with a dictionary that holds the properties you are trying to add to. So you want to set temp with temp = data[&#39;web&#39;][&#39;all&#39;][&#39;side&#39;][&#39;Honor&#39;][0]

You also cannot use append on python dictionaries. Instead, check out dict.update().

huangapple
  • 本文由 发表于 2023年2月6日 10:07:06
  • 转载请务必保留本文链接：https://go.coder-hub.com/75356784.html
  • json
  • python
  • python-3.x
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