如何在python中将json转换为tree

import json

def json_to_tree(json_obj, parent=None):
    if isinstance(json_obj, dict):  # 如果是字典类型
        for key, value in json_obj.items():
            node = Node(key, parent)  # 创建一个节点
            json_to_tree(value, node)  # 递归处理子节点
    elif isinstance(json_obj, list):  # 如果是列表类型
        for item in json_obj:
            json_to_tree(item, parent)  # 递归处理子节点
    else:  # 如果是其他类型（如字符串、数字等）
        Node(json_obj, parent)  # 创建一个叶子节点

class Node:
    def __init__(self, name, parent=None):
        self.name = name
        self.parent = parent
        self.children = []

        if parent is not None:
            parent.children.append(self)

    def __repr__(self):
        return self.name

json_str = '{"name": "root", "children": [{"name": "child1"}, {"name": "child2"}]}'
json_obj = json.loads(json_str)

root = Node("root")
json_to_tree(json_obj, root)

# 打印树形结构
def print_tree(node, level=0):
    print("  " * level + str(node))
    for child in node.children:
        print_tree(child, level + 1)

print_tree(root)

root
  child1
  child2