如何在python的深度嵌套数据结构中找到一个键的多次出现？

def find_key_occurrences(data, key):
    occurrences = []

    if isinstance(data, dict):
        if key in data:
            occurrences.append(data[key])
        for value in data.values():
            if isinstance(value, (dict, list)):
                occurrences.extend(find_key_occurrences(value, key))
    elif isinstance(data, list):
        for item in data:
            if isinstance(item, (dict, list)):
                occurrences.extend(find_key_occurrences(item, key))

    return occurrences

data = {
    "key1": "value1",
    "key2": [
        {"key3": "value3"},
        {"key4": "value4"},
        {"key1": "value5"}
    ],
    "key5": {
        "key1": "value6",
        "key7": [
            {"key1": "value7"},
            {"key8": "value8"}
        ]
    }
}

key = "key1"
occurrences = find_key_occurrences(data, key)
print(occurrences)

['value1', 'value5', 'value6', 'value7']