从“sklearn”Python库中得到很多错误[关闭]

Posted 2023-03-12

【中文标题】从“sklearn”Python库中得到很多错误[关闭]

【英文标题】：Got many error from "sklearn" Python library [closed]

【发布时间】：2022-01-12 08:09:25

【问题描述】：

我在jupyter中运行简单代码：

from sklearn.datasets import load_iris
iris = load_iris()

我没有使用 numpy 库，但我得到了这个：

g:\program files\python37\lib\site-packages\sklearn\feature_extraction\image.py:167: DeprecationWarning: `np.int` is a deprecated alias for the builtin `int`. To silence this warning, use `int` by itself. Doing this will not modify any behavior and is safe. When replacing `np.int`, you may wish to use e.g. `np.int64` or `np.int32` to specify the precision. If you wish to review your current use, check the release note link for additional information.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  dtype=np.int):
g:\program files\python37\lib\site-packages\sklearn\datasets\base.py:240: DeprecationWarning: `np.int` is a deprecated alias for the builtin `int`. To silence this warning, use `int` by itself. Doing this will not modify any behavior and is safe. When replacing `np.int`, you may wish to use e.g. `np.int64` or `np.int32` to specify the precision. If you wish to review your current use, check the release note link for additional information.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  target = np.empty((n_samples,), dtype=np.int)
g:\program files\python37\lib\site-packages\sklearn\datasets\base.py:244: DeprecationWarning: `np.int` is a deprecated alias for the builtin `int`. To silence this warning, use `int` by itself. Doing this will not modify any behavior and is safe. When replacing `np.int`, you may wish to use e.g. `np.int64` or `np.int32` to specify the precision. If you wish to review your current use, check the release note link for additional information.
Deprecated in NumPy 1.20; for more details and guidance: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations
  target[i] = np.asarray(ir[-1], dtype=np.int)

【问题讨论】：

这不是错误，只是对一些已弃用的sklearn 功能的警告

您应该执行pip install -U scikit-learn numpy，因为您似乎使用的是旧软件包版本。

【参考方案1】：

您的库似乎已过时，因此出现此弃用警告。

我建议您使用以下命令更新numpy 和scikit-learn：

pip install -U scikit-learn numpy