导入scikit-learn模块时出错

Question

我试图从集群模块调用一个函数,如下所示:

import sklearn
db = sklearn.cluster.DBSCAN()

我收到以下错误:

AttributeError: 'module' object has no attribute 'cluster'

在IPython中完成制表符,我似乎可以访问base,clone,externals,re,setup_module,sys和warning模块.没有别的,尽管其他人(包括集群)在sklearn目录中.

遵循以下pbu的建议并使用

from sklearn import cluster

我明白了:

Traceback (most recent call last):
  File "test.py", line 2, in <module>
    from sklearn import cluster
  File "C:\Python34\lib\site-packages\sklearn\cluster\__init__.py", line 6, in <module>
    from .spectral import spectral_clustering, SpectralClustering
  File "C:\Python34\lib\site-packages\sklearn\cluster\spectral.py", line 13, in <module>
    from ..utils import check_random_state, as_float_array
  File "C:\Python34\lib\site-packages\sklearn\utils\__init__.py", line 16, in <module>
    from .class_weight import compute_class_weight, compute_sample_weight
  File "C:\Python34\lib\site-packages\sklearn\utils\class_weight.py", line 7, in <module>
    from ..utils.fixes import in1d
  File "C:\Python34\lib\site-packages\sklearn\utils\fixes.py", line 318, in <module>
    from scipy.sparse.linalg import lsqr as sparse_lsqr
  File "C:\Python34\lib\site-packages\scipy\sparse\linalg\__init__.py", line 109, in <module>
    from .isolve import *
  File "C:\Python34\lib\site-packages\scipy\sparse\linalg\isolve\__init__.py", line 6, in <module>
    from .iterative import *
  File "C:\Python34\lib\site-packages\scipy\sparse\linalg\isolve\iterative.py", line 7, in <module>
    from . import _iterative
ImportError: DLL load failed: The specified module could not be found.

我在Windows上使用Python 3.4,scikit-learn 0.16.1.

Answer 1

你可能不使用Numpy + MKL,但只使用Numpy.

我有同样的问题,并重新安装Numpy与MKL

pip install --upgrade --force-reinstall "numpy?1.16.3+mkl?cp37?cp37m?win32.whl"

修复它(将文件更新到最新版本).

Answer 2

问题是scipy/numpy安装.我一直在使用来自http://www.lfd.uci.edu/~gohlke/pythonlibs/的(通常很棒的!)非官方安装程序.从那里卸载/重新安装没有任何区别,但安装官方安装程序(从http://www.scipy.org/install.html链接)就可以了.