如何从JSON对象数组中对JSON对象进行分组？

import json

# 假设我们有一个JSON对象数组
json_array = [
    {"name": "Alice", "age": 25, "gender": "female"},
    {"name": "Bob", "age": 30, "gender": "male"},
    {"name": "Charlie", "age": 25, "gender": "male"},
    {"name": "David", "age": 30, "gender": "male"},
    {"name": "Eve", "age": 25, "gender": "female"}
]

# 创建一个字典来存储分组结果
grouped_dict = {}

# 将JSON对象数组转换为字典
for obj in json_array:
    age = obj["age"]
    if age not in grouped_dict:
        grouped_dict[age] = []
    grouped_dict[age].append(obj)

# 遍历字典，创建分组对象数组
grouped_array = []
for age, group in grouped_dict.items():
    group_obj = {"age": age, "people": group}
    grouped_array.append(group_obj)

# 将结果转换为JSON字符串并打印
result = json.dumps(grouped_array, indent=4)
print(result)