How to access the values of JSON data in Python?

You can use the json.loads() function to convert a JSON string into a Python dictionary, and then access the corresponding value using the dictionary keys.

Here is an example code:

import json

# json字符串
json_str = '{"name": "John", "age": 30, "city": "New York"}'

# 将json字符串转换为字典
data = json.loads(json_str)

# 读取字段值
name = data['name']
age = data['age']
city = data['city']

print(name, age, city)

Result output:

John 30 New York

If you need to access nested field values, you can use the corresponding keys to access the values in the nested dictionary. For example:

import json

# json字符串
json_str = '{"name": "John", "age": 30, "address": {"city": "New York", "street": "123 Main St"}}'

# 将json字符串转换为字典
data = json.loads(json_str)

# 读取嵌套字段值
name = data['name']
age = data['age']
city = data['address']['city']
street = data['address']['street']

print(name, age, city, street)

Output:

John 30 New York 123 Main St