在Python中的for循环中创建JSON

我试图做的是创建一个JSON键列表。。。无论如何，我的想法是创建一个列表：

{
   "Country1":
   {
      "bonds": [
         {"Bond Name": "Country1 1Y","Prev. Close": 1},
         {"Bond Name": "Country1 2Y","Prev. Close": 2}
      ]
   },
   "Country2":
   {
      "bonds": [
         {"Bond Name": "Country2 1Y","Prev. Close": 1},
         {"Bond Name": "Country2 2Y","Prev. Close": 2}
      ]
   }

}

我已经创建的是另一个级别

{
    "Countries": [
        {
            "Argentina": []
        }
    ]
}

这就是我现在的代码，我不知道如何访问嵌套对象

from clear_screen import clear
clear()

import investpy
import json

json_data = {"Countries":[]}

for country_bond_item in investpy.bonds.get_bond_countries():
    # Print country name
    #print(country_bond_item.title())
    # Add value to JSON list eg: 'Argentina'
    json_data["Countries"].append({country_bond_item.title():[]})
    # Show what we have here
    print(json.dumps(json_data, indent=4))

    # Loop over country bonds
    for country_bond_list_item in investpy.bonds.get_bonds_list(country_bond_item):
        # Save JSON value for 'bond name'
        bond_json_value = investpy.bonds.get_bond_information(country_bond_list_item, as_json=True)
        # eg: {'Bond Name': 'Argentina 1Y', 'Value': '1'}
        # Just print value
        #print(bond_json_value)
        # Save bond data into: eg: json_data["Countries"]["Argentina"]
        json_data["Countries"][country_bond_item.title()].append([{'Bond Name': 'Argentina 1Y', 'Value': '1'}])

#print(json.dumps(json_data, indent=4))

不确定为什么索引为：json_data[“Countries”][country_bond_item.title（）]不起作用

---

应该在哪里：json_数据[“国家”][“阿根廷”]-然后我们可以在as列表中添加另一项内容？

这只是一个如何生成json的示例。用源代码替换静态数据

导入json
国家=[“a”、“b”、“c”]
债券=[“b1”、“b2”、“b3”]
结果={}
对于国家中的国家：
债券_tmp=[]
对于债券中的债券：
bonds_tmp.append（{“Bond Name”：Bond，“Prev.Close”：1}）
结果[国家]={“债券”：债券{u tmp}
打印（json.dumps（结果，缩进=4））

印刷品

{
    "a": {
        "bonds": [
            {
                "Bond Name": "b1",
                "Prev. Close": 1
            },
            {
                "Bond Name": "b2",
                "Prev. Close": 1
            },
            {
                "Bond Name": "b3",
                "Prev. Close": 1
            }
        ]
    },
    "b": {
...
}

---

非常感谢你！在“清理”之后，添加一些注释以解释我最终代码的位置：

注：如果此代码对您有帮助，请向上投票接受答案：）

# Clear screen each time when run script
from clear_screen import clear
clear()

# Import libs
import investpy
import json

# Array for all countries and their bonds
json_data = {}

# Loop over all countries
for country_name in investpy.bonds.get_bond_countries():
    # Create 'array' where we can store all bonds for that country
    bonds_tmp = []
    # Loop over all bonds 
    for bond_name in investpy.bonds.get_bonds_list(country_name):
        # And add them into tmp array
        bonds_tmp.append(investpy.bonds.get_bond_information(bond_name, as_json=True))
    # Create 'country' item, that will contain array of all bonds above
    json_data[country_name.title()] = bonds_tmp

    # Break on first item ... for testing!
    #break

# Also for testing/debug print value on screen
#print(json.dumps(json_data, indent=4))

# Dump data to file
with open('data.txt', 'w') as outfile:
    json.dump(json_data, outfile)