numpy (1.16.4) has the default value of allow_pickle as False.

My version of numpy (1.16.4) has the default value of allow_pickle as False.

numpy版本是1.16.4，allow_pickle默认值是False，但值为True时才能下载该数据集。

Solution 解决方案：

Downgrading numpy version to 1.16.2

降低将numpy版本至1.16.2，即在Terminal输入command:

sudo pip install numpy==1.16.2