从sklearn导入DecisionTreeClassifier时出错

Question

当我尝试从 sklearn.tree 导入 DecisionTreeClassifier 时，我收到以下属性错误：

AttributeError: module 'numpy' has no attribute 'float'

我的代码是：

import sklearn
print(sklearn.__version__)
from sklearn.tree import DecisionTreeClassifier

输出：

0.23.2

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

Answer 1

您收到此错误是因为您使用 np.float 作为数据类型，NumPy 不再支持该数据类型。正如错误消息所示，您应该在代码中将 np.float 替换为 float 或 np.float64。