Python -如何使用字符串计算2D列表中的整数？

def calculate_integers_in_2d_list(lst):
    result = []
    for sublist in lst:
        row_result = []
        for item in sublist:
            if isinstance(item, int):
                row_result.append(item)
            elif isinstance(item, str):
                try:
                    evaluated = eval(item)
                    if isinstance(evaluated, int):
                        row_result.append(evaluated)
                except:
                    pass
        result.append(row_result)
    return result

lst = [[1, 2, '3+4'], ['5', '6', '7'], [8, '9', '10']]
result = calculate_integers_in_2d_list(lst)
print(result)

[[1, 2, 7], [5, 6, 7], [8, 9, 10]]