Error when trying to import sklearn modules : ImportError: DLL load failed: The specified module could not be found

This line points to scipy.

from scipy.sparse.linalg import lsqr as sparse_lsqr

You can try:

pip uninstall scipy

pip install scipy

enjoy!

You should open up "C:\Python27\lib\site-packages\sklearn\utils\fixes.py", and edit the contents. There are two specific changes you should make:

First, copy-and-paste the contents of https://github.com/scikit-learn/scikit-learn/blob/74a9756fa784d1f22873ad23c8b4948c6e290108/sklearn/utils/fixes.py into the file "C:\Python27\lib\site-packages\sklearn\utils\fixes.py".

Second, replace the line if np_version < (1, 12, 0): with if np_version < (1, 12):.

More background info and detail available here, in a great answer from user DSM.

Reinstallation of scipy, numpy, and scikit-learn packages fixed the error in my case.