Python如何在嵌套字典中匹配两个字典的值？

def find_matching_values(dict1, dict2):
    result = []

    for key1, value1 in dict1.items():
        if isinstance(value1, dict):
            for key2, value2 in dict2.items():
                if key1 == key2 and isinstance(value2, dict):
                    sub_result = find_matching_values(value1, value2)
                    result.extend(sub_result)
        else:
            if key1 in dict2 and value1 == dict2[key1]:
                result.append((key1, value1))

    return result

dict1 = {
    "key1": "value1",
    "key2": {
        "sub_key1": "sub_value1",
        "sub_key2": "sub_value2"
    },
    "key3": "value3"
}

dict2 = {
    "key1": "value1",
    "key2": {
        "sub_key1": "sub_value1",
        "sub_key2": "sub_value2"
    },
    "key4": "value4"
}

result = find_matching_values(dict1, dict2)
print(result)

[('key1', 'value1'), ('sub_key1', 'sub_value1'), ('sub_key2', 'sub_value2')]