VisibleDeprecationWarning , Creating an ndarray from ragged nested sequences... 警告怎么办？

我不是完美主义，但是至少，我在做实验的时候不能容忍有 warning 的出现。

今天使用 tensorflow.keras.datasets中的 imdb 数据集，使用 imdb.load_data() 方法导入数据的时候，报出一个警告，VisibleDeprecationWarning: Creating an ndarray from ragged nested sequences (which is a list-or-tuple of lists-or-tuples-or ndarrays with different lengths or shapes) is deprecated. If you meant to do this, you must specify 'dtype=object' when creating the ndarray

经过查阅，得知这是因为创建 numpy包中 ndarray 类对象时，设若 np.array( some_object)，如果传入的参数 some_object 是个 ragged 的，或者维度不整齐，或者每维元素数量不固定的，那么就会报出这个 warning。

这不是自己写的代码有问题，而是人家写好的代码模块有问题（现在能被 numpy 兼容，以后会被弃置的）。所以可以修改人家写好的 imdb.load_data 的代码。

方法。

先 import warings, 然后 warnings.simplefilter("error")，使得 warning 不会通过检查，报出warning位置，找到了关于创建 ndarray 的代码，这就在imdb.load_data 方法内部

和

一共两处，

分别做如下修改：

然后就没有 warning 了。

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Conclusion

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哇，第一次改人家的库，虽然并不是底层的库，也是很爽。我 cao 勇的（ww腔）~~

Above all, 浪费了很多的时间，只为了不见个warning，感觉很亏。

还是要抓主要矛盾，下次一定。 :)

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