numpy is already installed with Anaconda but I get

Question

I am using the Anaconda distribution with Python 3.7. Among the packages installed, I have numpy, pandas, etc. In PyCharm IDE, I have set the Project Interpreter to be the path to the python.exe installed with Anaconda: C:\Users\my_user_name\AppData\Local\Continuum\anaconda3\python.exe

However, when I try running a simple python script:

import numpy as np
print(np.pi)

I get an error:

ImportError: Importing the multiarray numpy extension module failed. Most likely you are trying to import a failed build of numpy. If you're working with a numpy git repo, try git clean -xdf (removes all files not under version control). Otherwise reinstall numpy.

Original error was: DLL load failed: The specified module could not be found.

See the full error message below:

---

Traceback (most recent call last): File "C:\Users\my_user_name\AppData\Local\Continuum\anaconda3\lib\site-packages\numpy\core__init__.py", line 16, in from . import multiarray ImportError: DLL load failed: The specified module could not be found.

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "C:/Users/my_user_name/Documents/TestMyApps/simpletest.py", line 1, in import numpy as np File "C:\Users\my_user_name\AppData\Local\Continuum\anaconda3\lib\site-packages\numpy__init__.py", line 142, in from . import add_newdocs File "C:\Users\my_user_name\AppData\Local\Continuum\anaconda3\lib\site-packages\numpy\add_newdocs.py", line 13, in from numpy.lib import add_newdoc File "C:\Users\my_user_name\AppData\Local\Continuum\anaconda3\lib\site-packages\numpy\lib__init__.py", line 8, in from .type_check import * File "C:\Users\my_user_name\AppData\Local\Continuum\anaconda3\lib\site-packages\numpy\lib\type_check.py", line 11, in import numpy.core.numeric as _nx File "C:\Users\my_user_name\AppData\Local\Continuum\anaconda3\lib\site-packages\numpy\core__init__.py", line 26, in raise ImportError(msg) ImportError: Importing the multiarray numpy extension module failed. Most likely you are trying to import a failed build of numpy. If you're working with a numpy git repo, try git clean -xdf (removes all files not under version control). Otherwise reinstall numpy.

Original error was: DLL load failed: The specified module could not be found.

Process finished with exit code 1

---

I have tried uninstalling and reinstalling numpy using Anaconda Prompt with: conda uninstall numpy, and then: conda install numpy [I now have numpy 1.15.4]. The re-install seem 'successful' (at least according to Anaconda Prompt), but, I keep getting an error in PyCharm.

The strange part, is when I directly go into Anaconda Prompt, and type:

python
import numpy as np
print(np.pi)

I do not get any error, and I am able to see the correct result printed out. At first, I thought that perhaps, when using PyCharm, I am somehow pointing to a different executable, but I checked in both Anaconda Prompt and Python Console of Pycharm, using:

sys.executable

and they both show the same path:

'C:\\Users\\my_user_name\\AppData\\Local\\Continuum\\anaconda3\\python.exe'

Note that in PyCharm, when I try running a script where I am not importing any library, or when the library imported are just like sys or os, the scripts run fine. However, when I try running any other script that involves importing a library that somehow depends on numpy, it fails as well (i.e. scripts where I import pandas, etc.) Those same scripts work fine in Anaconda Prompt.

I am at a loss here, any help would be very appreciated!

Answer 1

Edit your System Environment Variable "PATH’ (refer steps here) by adding below given path.

Note: Follow this step if you already have numpy installed.

If using anaconda:
C:\Users\<username>\AppData\Local\Continuum\Anaconda<version>\Library\bin\

If using independent python interpreter:
C:\Users\<username>\AppData\Roaming\Python\Python<version>\Library\bin

Answer 2

For PyCharm users wanting an easy fix, this issue is fixed in PyCharm 2019.2.

Answer 3

I have actually figured out the solution. I had initially edited my System Environment Variable ‘PATH’ by adding the path to the Scripts folder in my Python executable directory. Turns out, this was NOT enough...

I had to add more paths to it, and that magically did the trick.

See below the paths I added for the System Environment Variable PATH:

C:\Users\<myusername>\AppData\Local\Continuum\Anaconda3\Scripts\
C:\Users\<myusername>\AppData\Local\Continuum\Anaconda3\Library\
C:\Users\<myusername>\AppData\Local\Continuum\Anaconda3\Library\bin\
C:\Users\<myusername>\AppData\Local\Continuum\Anaconda3\Library\mingw-w64\bin\

Now, I am not sure exactly which one path among these 4 my System was really looking for in particular. However, adding this combination sure did work for me

查看更多

0人赞 添加讨论(0) 举报

Answer 4

Get the os environment path like:

import os
os.environ['PATH']

Now, add this path to the environment variable PATH in pycharm debugger/console output. It works.

Answer 5

Even I was running the python file on command prompt, but the python.exe was from Anaconda. so when you run any python file you get,

Warning: This Python interpreter is in a conda environment, but the environment has not been activated. Libraries may fail to load. To activate this environment please see https://conda.io/activation.

you need to activate the environment by using this command

 conda init cmd.exe
 conda activate 

you see the command window as below, with base env

(base) C:\Users\yash\Documents\pycharm_project\venv>

Doing this I resolved this error

ImportError: numpy.core.multiarray failed to import Traceback (most recent call last): File "opencv_p1.py", line 2, in import cv2 File "E:\Anaconda3\lib\site-packages\cv2__init__.py", line 3, in from .cv2 import * ImportError: numpy.core.multiarray failed to import

In case you want to deactivate the conda use

 conda deactivate

Please follow this link in case you have any doubt https://conda.io/activation