python - 导入错误 : cannot import name 'det_curve' from 'sklearn.metrics'

Question

不知道为什么会报错，引用官方文档
https://scikit-learn.org/stable/modules/generated/sklearn.metrics.det_curve.html#sklearn.metrics.det_curve

代码:

import numpy as np
from sklearn.metrics import det_curve

fpr, fnr, thresholds = det_curve(y_test, y_pred)
print(fpr, fnr, thresholds) 

错误:

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ImportError                               Traceback (most recent call last)
<ipython-input-46-d8d6f0b546ca> in <module>()
     10 
     11 import numpy as np
---> 12 from sklearn.metrics import det_curve
     13 
     14 fpr, fnr, thresholds = det_curve(y_test['cEXT'], y_pred)

ImportError: cannot import name 'det_curve' from 'sklearn.metrics' (/usr/local/lib/python3.7/dist-packages/sklearn/metrics/__init__.py)

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Answer 1

我的 Jupyter notebook 也遇到了同样的问题。我卸载并重新安装了 scikit-learn 和 imblearn。它没有用。然后重启内核，再次运行，问题解决。