膨胀类片段时出错

def expand_list(original_list, new_elements):
    try:
        # 检查内存是否足够
        if sys.getsizeof(original_list) + sum(sys.getsizeof(elem) for elem in new_elements) > MAX_MEMORY_LIMIT:
            raise MemoryError("Memory limit exceeded")
        
        # 进行膨胀操作
        expanded_list = original_list + new_elements
        return expanded_list
    except MemoryError as e:
        print(f"Error: {e}")
        return None
    except Exception as e:
        print(f"Unexpected error: {e}")
        return None

# 示例使用
original_list = [1, 2, 3]
new_elements = [4, 5, 6]
expanded_list = expand_list(original_list, new_elements)
if expanded_list:
    print("Expanded list:", expanded_list)
else:
    print("Expansion failed")