如何在大型JSON文件中重命名重复的键？

import json

def rename_duplicate_keys(json_data):
    keys = set()
    def rename_keys(obj):
        if isinstance(obj, dict):
            new_obj = {}
            for key, value in obj.items():
                if key in keys:
                    new_key = generate_unique_key(key)
                    keys.add(new_key)
                else:
                    new_key = key
                    keys.add(new_key)
                new_obj[new_key] = rename_keys(value)
            return new_obj
        elif isinstance(obj, list):
            return [rename_keys(item) for item in obj]
        else:
            return obj

    renamed_data = rename_keys(json_data)
    return renamed_data

# 读取JSON文件
with open('large_json_file.json') as f:
    json_data = json.load(f)

# 重命名重复的键
renamed_json_data = rename_duplicate_keys(json_data)

# 将更新后的JSON数据保存到文件
with open('updated_json_file.json', 'w') as f:
    json.dump(renamed_json_data, f)