Question

from sklearn import datasets

运行上面的代码时，出现错误：

`Traceback` (most recent call last):
  File "perceptron_ml.py", line 2, in <module>
    from sklearn import datasets
  File "/home/remember/.local/lib/python3.6/site-packages/sklearn/datasets/__init__.py", line 22, in <module>
    from ._twenty_newsgroups import fetch_20newsgroups
  File "/home/remember/.local/lib/python3.6/site-packages/sklearn/datasets/_twenty_newsgroups.py", line 45, in <module>
    from ..feature_extraction.text import CountVectorizer
  File "/home/remember/.local/lib/python3.6/site-packages/sklearn/feature_extraction/__init__.py", line 8, in <module>
    from ._hashing import FeatureHasher
ImportError: cannot import name 'FeatureHasher'

Ubuntu：18.04，Python：3.6.9，Numpy：1.17.4，scikit-learn：0.22

Answer 1

该错误是由于pip导致的更新期间出现故障。相关的SO帖子为https://stackoverflow.com/a/59355676/6513708

但是长话短说，您需要删除以下文件，这些文件是在更新过程中pip允许的：

~/.local/lib/python3.6/site-packages/sklearn/decomposition/_online_lda.cpython-36m-x86_64-linux-gnu.so
~/.local/lib/python3.6/site-packages/sklearn/feature_extraction/_hashing.cpython-36m-x86_64-linux-gnu.so
~/.local/lib/python3.6/site-packages/sklearn/datasets/_svmlight_format.cpython-36m-x86_64-linux-gnu.so

“从sklearn导入数据集”时出错

1 个答案: