如何在Python中通过包含嵌套字典的字典创建新字典

def create_new_dict(nested_dict):
    new_dict = {}
    for key, value in nested_dict.items():
        if isinstance(value, dict):
            new_dict[key] = create_new_dict(value)
        else:
            new_dict[key] = value
    return new_dict

# 示例嵌套字典
nested_dict = {
    'key1': 'value1',
    'key2': {
        'nested_key1': 'nested_value1',
        'nested_key2': 'nested_value2'
    },
    'key3': 'value3'
}

# 创建新字典
new_dict = create_new_dict(nested_dict)
print(new_dict)

{'key1': 'value1', 'key2': {'nested_key1': 'nested_value1', 'nested_key2': 'nested_value2'}, 'key3': 'value3'}