字典将"None“替换为值嵌套字典

def replace_none_with_dict(data, replacement={}):
    if isinstance(data, dict):
        return {k: replace_none_with_dict(v, replacement) for k, v in data.items()}
    elif data is None:
        return replacement
    else:
        return data

# 示例使用
original_dict = {
    "a": 1,
    "b": None,
    "c": {
        "d": None,
        "e": {
            "f": None,
            "g": 2
        }
    }
}

replacement_dict = {"default": "value"}

new_dict = replace_none_with_dict(original_dict, replacement_dict)
print(new_dict)

{
    'a': 1,
    'b': {'default': 'value'},
    'c': {
        'd': {'default': 'value'},
        'e': {
            'f': {'default': 'value'},
            'g': 2
        }
    }
}