Python 导入错误：导入 sklearn.mixture 时无法导入名称选择
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ImportError: cannot import name choice when importing sklearn.mixture
提问by user1487551
I am using scikit learn 0.15.0. When I try to import sklearn.mixture I get ImportError: cannot import name choice
我正在使用 scikit 学习 0.15.0。当我尝试导入 sklearn.mixture 时，出现 ImportError: cannot import name choice
Any ideas?
有任何想法吗？
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================================================== ==================
In [1]: **from sklearn import mixture**
ImportError Traceback (most recent call last)
<ipython-input-1-05bc76cab98d> in <module>()
----> 1 from sklearn import mixture
/home/f/anaconda/lib/python2.7/site-packages/sklearn/mixture/__init__.py in <module>()
3 """
4
----> 5 from .gmm import sample_gaussian, log_multivariate_normal_density
6 from .gmm import GMM, distribute_covar_matrix_to_match_covariance_type
7 from .gmm import _validate_covars
/home/f/anaconda/lib/python2.7/site-packages/sklearn/mixture/gmm.py in <module>()
16 from ..utils import check_random_state, deprecated
17 from ..utils.extmath import logsumexp, pinvh
---> 18 from .. import cluster
19
20 from sklearn.externals.six.moves import zip
/home/f/anaconda/lib/python2.7/site-packages/sklearn/cluster/__init__.py in <module>()
4 """
5
----> 6 from .spectral import spectral_clustering, SpectralClustering
7 from .mean_shift_ import mean_shift, MeanShift, estimate_bandwidth, \
8 get_bin_seeds
/home/f/anaconda/lib/python2.7/site-packages/sklearn/cluster/spectral.py in <module>()
16 from ..neighbors import kneighbors_graph
17 from ..manifold import spectral_embedding
---> 18 from .k_means_ import k_means
19
20
/home/f/anaconda/lib/python2.7/site-packages/sklearn/cluster/k_means_.py in <module>()
28 from ..utils import as_float_array
29 from ..utils import gen_batches
---> 30 from ..utils.random import choice
31 from ..externals.joblib import Parallel
32 from ..externals.joblib import delayed
ImportError: cannot import name choice
回答by skv
I was getting the same error when I tried to import KMeansas : from sklearn.cluster import KMeans
当我尝试这样import KMeans做时，我遇到了同样的错误：from sklearn.cluster import KMeans
Error > ImportError: cannot import name choice
Error > ImportError: cannot import name choice
I found the answer here: https://github.com/scikit-learn/scikit-learn/issues/3461
我在这里找到了答案：https: //github.com/scikit-learn/scikit-learn/issues/3461
Since I have upgraded to Scikit version 0.15 a few days back, the older version ofrandom.so was present in/usr/local/lib/python2.7/dist-packages/sklearn/utils.
由于几天前我升级到 Scikit 0.15 版，旧版本的random.so 出现在/usr/local/lib/python2.7/dist-packages/sklearn/utils.
I manually deleted it and now I do not get the error anymore.
我手动删除了它，现在我不再收到错误消息。
Hope this helps.
希望这可以帮助。
回答by ntg
As noted, it might have to do with old files (that are implemented in python as opposed to libraries?) in a new package you probably updated using pip install -U packagename (in my case pip install -U scikit-learn) It might be worth first trying to uninstall the package and install it again before manually deleting stuff... (worked in my case) uninstall (in my case run it on Anaconda Command prompt):
如前所述，它可能与旧文件（在 python 中实现而不是库中实现？）有关，您可能使用 pip install -U packagename 更新了新包（在我的情况下是 pip install -U scikit-learn）它可能值得首先尝试卸载软件包并在手动删除内容之前再次安装它......（在我的情况下工作）卸载（在我的情况下在Anaconda命令提示符下运行它）：
pip uninstall scikit-learn
then:
然后：
pip install -U numpy scipy scikit-learn
(added dependencies just in case) then just to be sure
（为了以防万一，添加了依赖项）然后只是为了确定
pip install scikit-learn
should say it's installed
应该说它已安装
回答by Fareesa
from sklearn.mixture import GaussianMixture
using this would make it more specific to work with .gmm,
使用它可以更具体地使用 .gmm，
and
和
from sklearn.cluster import KMeans
for:
为了：
16 from ..neighbors import kneighbors_graph
17 from ..manifold import spectral_embedding
---> 18 from .k_means_ import k_means
