AttributeError: module 'numpy' has no attribute 'float'.
`np.float` was a deprecated alias for the builtin `float`. To avoid this error in existing code, use `float` by itself. Doing this will not modify any behavior and is safe. If you specifically wanted the numpy scalar type, use `np.float64` here.
The aliases was originally deprecated in NumPy 1.20; for more details and guidance see the original release note at:
https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations. Did you mean: 'cfloat'?
这是pycharm给的报错原因，笔者查了相关资料，发现都太麻烦了，仔细看错误，会发现系统推荐我们使用np.float64 这种用法，所以我们先定位到np.float相关代码处，如下图所示：
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重新运行demo文件，成功 文章来源地址https://www.toymoban.com/news/detail-643575.html
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