import scipy error: cannot import name '_ccallback_c'

Question

I use Anaconda3@windows to import scipy(v1.0.0) but I have an error when compiling. I have checked other similar cases online but found no solution, does anyone have any idea?

import numpy as np
import scipy

The error msg

ImportError
Traceback (most recent call
last) <ipython-input-12-eb63b9337447> in <module>()
      1 import numpy as np
----> 2 import scipy

~\AppData\Roaming\Python\Python36\site-packages\scipy\__init__.py in
<module>()
    116     del _NumpyVersion
    117 
--> 118     from scipy._lib._ccallback import LowLevelCallable
    119 
    120     from scipy._lib._testutils import PytestTester

~\AppData\Roaming\Python\Python36\site-packages\scipy\_lib\_ccallback.py
in <module>()
----> 1 from . import _ccallback_c
      2 
      3 import ctypes
      4 
      5 PyCFuncPtr = ctypes.CFUNCTYPE(ctypes.c_void_p).__bases__[0]

ImportError: cannot import name '_ccallback_c'

Answer 1

I had the same issue and tried all recommended solutions (re-install in many different ways), but nothing worked. What helped a lot is to read documentation more carefully (https://www.scipy.org/install.html) In my case, scipy library also required some latest versions of other libraries to be installed, so I run: python -m pip install numpy scipy matplotlib ipython jupyter pandas sympy nose

Now everything works fine.

Answer 2

Solution found!

1. remove scipy (entire folder), in my computer where in C:\Users(your name)\AppData\Roaming\Python\Python36\site-packages\scipy*
2. download scipy from https://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy
3. re-install by pip install scipy-1.0.0-cp36-cp36m-win_amd64.whl (my os is windows-64bit)

That's it!

Answer 3

Agree with Daria Simonova, try conda update numpy scipy matplotlib ipython jupyter pandas sympy nose in case you are using Anaconda.