'ImportError: DLL load failed: The specified module could not be found' when importing sklearn

Question:

Python version: 3.5.2

I installed sklearn and some other packages form pip. All of them were installed successfully except sklearn so, I downloaded the wheel and installed it from here. It was successfully installed but when i tried to import it in order to check correct installation, I got tons of errors:

Traceback (most recent call last):
File "C:MyFilesProgramsPythonPlayGround.py", line 1, in
import sklearn
File "C:UsersVaibhav AcharyaAppDataLocalProgramsPythonPython35libsite-packagessklearn_init_.py", line 134, in
from .base import clone
File "C:UsersVaibhav AcharyaAppDataLocalProgramsPythonPython35libsite-packagessklearnbase.py", line 12, in
from .utils.fixes import signature
File "C:UsersVaibhav AcharyaAppDataLocalProgramsPythonPython35libsite-packagessklearnutils_init_.py", line 11, in
from .validation import (as_float_array,
File "C:UsersVaibhav AcharyaAppDataLocalProgramsPythonPython35libsite-packagessklearnutilsvalidation.py", line 18, in
from ..utils.fixes import signature
File "C:UsersVaibhav AcharyaAppDataLocalProgramsPythonPython35libsite-packagessklearnutilsfixes.py", line 144, in
from scipy.sparse.linalg import lsqr as sparse_lsqr # noqa
File "C:UsersVaibhav AcharyaAppDataLocalProgramsPythonPython35libsite-packagesscipysparselinalg_init_.py", line 114, in
from .isolve import *
File "C:UsersVaibhav AcharyaAppDataLocalProgramsPythonPython35libsite-packagesscipysparselinalgisolve_init_.py", line 6, in
from .iterative import *
File "C:UsersVaibhav AcharyaAppDataLocalProgramsPythonPython35libsite-packagesscipysparselinalgisolveiterative.py", line 7, in
from . import _iterative

ImportError: DLL load failed: The specified module could not be found.

And the code was just:

import sklearn

I have already checked correct version of wheel package which I have downloaded.

How can I correct it and why it is occurring?

Asked By: user8369885

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Source

Answers:

Various things need to be checked:

  1. Check numpy, scipy installation versions.
  2. If they are correct then try to import numpy and scipy.
  3. If they getting imported correctly, then clear your temp(c:/users/username/Appdata/local/temp)folder. Restart the machine and try again.
  4. Still if doesn’t work, then uninstall scipy, numpy , sklearn and
    reinstall the proper wheel files
Answered By: pallavi Kulkarni

The following steps solved my problem :

  1. Uninstalling numpy, sklearn and scipy.
  2. Downloading numpy+mkl and scipy from here.
  3. Firstly installing numpy+mkl and then scipy.
  4. Installing sklearn from pip.
Answered By: user8369885

Download and install numpy+mkl file.

Currently you might have installed only the numpy file.

  1. Go to: https://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy

  2. Download the corresponding wheel file in which is suitable for your python installation

  3. pip install "/path_to_thefile/numpy-1.14.6+mkl-cp36-cp36m-win_amd64.whl"

This should help you

Answered By: ambakick