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raise

有些时候为什么实用raise主动抛出异常

慕村1232395

2018-05-07

源自：Python错误和异常 3-1

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weixin_慕工程1563154
2022-03-30

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慕沐6956416
2018-05-11

个人的感觉是主动抛出异常时，防止潜在异常的发生，而且当异常发生时，也不需要等解释器来处理。例如：当打开一个文件时，最好能主动抛出一个IOError，防止文件不存在抛出异常。

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