你可以用这个例子来改变 {"security architect": 5.0} 至 {"student": 15.0} ( data 从json文件加载）：

import json

to_search = {"security architect": 5.0}
to_replace = {"student": 15.0}

for item in data:
    if to_search in item["top_transitions"]:
        item["top_transitions"].remove(to_search)
        item["top_transitions"].append(to_replace)

print(json.dumps(data, indent=4))

印刷品：

[
    {
        "key": "chief information security officer",
        "top_transitions": [
            {
                "cyber security manager": 3.0
            },
            {
                "information security officer": 3.0
            },
            {
                "student": 15.0
            }
        ]
    },
    {
        "key": "security auditor",
        "top_transitions": [
            {
                "information security analyst": 9.0
            },
            {
                "information security officer": 9.0
            },
            {
                "it auditor": 6.0
            }
        ]
    }
]