numpy ImportError: DLL load failed: The specified module could not be found. #10628
Description
Is it possible to install numpy using pip/setup.py from within a conda environment?
Actual Behavior
C:\Users\AAnderson\cmder
λ conda create -n test8 python=3.6
Solving environment: done
==> WARNING: A newer version of conda exists. <==
current version: 4.5.12
latest version: 4.6.3
Please update conda by running
$ conda update -n base -c defaults conda
## Package Plan ##
environment location: c:\tools\Anaconda3\envs\test8
added / updated specs:
- python=3.6
The following NEW packages will be INSTALLED:
certifi: 2018.11.29-py36_0
pip: 19.0.1-py36_0
python: 3.6.8-h9f7ef89_1
setuptools: 40.7.3-py36_0
sqlite: 3.26.0-he774522_0
vc: 14.1-h0510ff6_4
vs2015_runtime: 14.15.26706-h3a45250_0
wheel: 0.32.3-py36_0
wincertstore: 0.2-py36h7fe50ca_0
Proceed ([y]/n)?
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
#
# To activate this environment, use
#
# $ conda activate test8
#
# To deactivate an active environment, use
#
# $ conda deactivate
C:\Users\AAnderson\cmder
λ activate test8
C:\Users\AAnderson\cmder
(test8) λ pip install numpy
Collecting numpy
Using cached https://files.pythonhosted.org/packages/b5/11/82916e23836a37c0d76babf74a7ca6f7b4fedd0814eaa166aacc2318b87c/numpy-1.16.1-cp36-cp36m-win_amd64.whl
Installing collected packages: numpy
Successfully installed numpy-1.16.1
C:\Users\AAnderson\cmder
(test8) λ python -c "import numpy"
Traceback (most recent call last):
File "c:\tools\Anaconda3\envs\test8\lib\site-packages\numpy\core\__init__.py", line 16, in <module>
from . import multiarray
File "c:\tools\Anaconda3\envs\test8\lib\site-packages\numpy\core\multiarray.py", line 12, in <module>
from . import overrides
File "c:\tools\Anaconda3\envs\test8\lib\site-packages\numpy\core\overrides.py", line 6, in <module>
from numpy.core._multiarray_umath import (
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 "<string>", line 1, in <module>
File "c:\tools\Anaconda3\envs\test8\lib\site-packages\numpy\__init__.py", line 142, in <module>
from . import core
File "c:\tools\Anaconda3\envs\test8\lib\site-packages\numpy\core\__init__.py", line 47, in <module>
raise ImportError(msg)
ImportError:
IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
Here is how to proceed:
- If you're working with a numpy git repository, try `git clean -xdf`
(removes all files not under version control) and rebuild numpy.
- If you are simply trying to use the numpy version that you have installed:
your installation is broken - please reinstall numpy.
- If you have already reinstalled and that did not fix the problem, then:
1. Check that you are using the Python you expect (you're using c:\tools\Anaconda3\envs\test8\python.exe),
and that you have no directories in your PATH or PYTHONPATH that can
interfere with the Python and numpy versions you're trying to use.
2. If (1) looks fine, you can open a new issue at
https://github.com/numpy/numpy/issues. Please include details on:
- how you installed Python
- how you installed numpy
- your operating system
- whether or not you have multiple versions of Python installed
- if you built from source, your compiler versions and ideally a build log
Note: this error has many possible causes, so please don't comment on
an existing issue about this - open a new one instead.
Original error was: DLL load failed: The specified module could not be found.
C:\Users\AAnderson\cmder
(test8) λ echo %PATH%
c:\tools\Anaconda3\envs\test8;c:\tools\Anaconda3\envs\test8\Library\mingw-w64\bin;c:\tools\Anaconda3\envs\test8\Library\usr\bin;c:\tools\Anaconda3\envs\test8\Library\bin;c:\tools\Anaconda3\envs\test8\Scripts;c:\tools\Anaconda3\envs\test8\bin;C:\Users\AAnderson\cmder\bin;C:\Users\AAnderson\cmder\vendor\bin;C:\Users\AAnderson\cmder\vendor\conemu-maximus5\ConEmu\Scripts;C:\Users\AAnderson\cmder\vendor\conemu-maximus5;C:\Users\AAnderson\cmder\vendor\conemu-maximus5\ConEmu;c:\tools\Anaconda3\Scripts;c:\tools\Anaconda3\;C:\ProgramData\DockerDesktop\version-bin;C:\Program Files\Docker\Docker\Resources\bin;C:\Python37\Scripts\;C:\Python37\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files\Git\cmd;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\Microsoft VS Code\bin;C:\ProgramData\chocolatey\bin;C:\Program Files\nodejs\;C:\Program Files\dotnet\;C:\Program Files\OpenSSL\bin;C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\;C:\Users\AAnderson\AppData\Local\Microsoft\WindowsApps;C:\Users\AAnderson\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\AAnderson\AppData\Roaming\npm;C:\ProgramData\chocolatey\lib\mingw\tools\install\mingw64\bin;C:\Program Files\Git\cmd;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Users\AAnderson\cmder
Expected Behavior
Trying to install numpy into an anaconda environment (or use a package's python setup.py which has a numpy requirement)
Steps to Reproduce
This used to work on my machine (and I can still load its environment to test it and it's using numpy 1.16.1), but something seems to have changed and now I can't reproduce that (working) environment. I don't remember how I created that environment, but I don't think I did anything beyond python setup.py develop or similar.
I'm not very experienced with development on Windows, so I don't know much about how to debug dll issues.
I uninstalled anaconda this morning, and then reinstalled using chocolatey, but that didn't resolve the issue.
I get the same problem if I do this (i.e., without the python=3.6):
(test8) λ conda create -n test10
(test8) λ activate test10
(test10) λ python -c "import numpy"
...
ImportError: DLL load failed: The specified module could not be found.
and it also fails if I use python=3.7.
I also tried uninstalling numpy from the base environment but that didn't work.
although this does work:
C:\Users\AAnderson\cmder
(test10) λ activate base
C:\Users\AAnderson\cmder
(base) λ python -c "import numpy"
C:\Users\AAnderson\cmder
I also tried this:
(test12) λ conda create -n test13 python=3.6 numpy
(test12) λ activate test13
(test13) λ python -c "import numpy"
(test13) λ
and that worked too (although it gave me numpy 1.15.4 instead of 1.16.1, not that I care about which version).
Anaconda or Miniconda version:
4.5.12
This is what's provided by default from chocolatey right now. Last night I tried upgrading to the most recent anaconda and it had the same issue.
Operating System:
see below
conda info
C:\Users\AAnderson\cmder
(test8) λ conda info
active environment : test8
active env location : c:\tools\Anaconda3\envs\test8
shell level : 1
user config file : C:\Users\AAnderson\.condarc
populated config files : C:\Users\AAnderson\.condarc
conda version : 4.5.12
conda-build version : 3.17.6
python version : 3.7.1.final.0
base environment : c:\tools\Anaconda3 (writable)
channel URLs : https://repo.anaconda.com/pkgs/main/win-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/free/win-64
https://repo.anaconda.com/pkgs/free/noarch
https://repo.anaconda.com/pkgs/r/win-64
https://repo.anaconda.com/pkgs/r/noarch
https://repo.anaconda.com/pkgs/pro/win-64
https://repo.anaconda.com/pkgs/pro/noarch
https://repo.anaconda.com/pkgs/msys2/win-64
https://repo.anaconda.com/pkgs/msys2/noarch
package cache : c:\tools\Anaconda3\pkgs
C:\Users\AAnderson\AppData\Local\conda\conda\pkgs
envs directories : c:\tools\Anaconda3\envs
C:\Users\AAnderson\AppData\Local\conda\conda\envs
C:\Users\AAnderson\.conda\envs
platform : win-64
user-agent : conda/4.5.12 requests/2.21.0 CPython/3.7.1 Windows/10 Windows/10.0.17134
administrator : False
netrc file : None
offline mode : False
conda list --show-channel-urls
C:\Users\AAnderson\cmder
(test8) λ conda list --show-channel-urls
# packages in environment at c:\tools\Anaconda3\envs\test8:
#
# Name Version Build Channel
certifi 2018.11.29 py36_0 defaults
numpy 1.16.1 <pip>
pip 19.0.1 py36_0 defaults
python 3.6.8 h9f7ef89_1 defaults
setuptools 40.7.3 py36_0 defaults
sqlite 3.26.0 he774522_0 defaults
vc 14.1 h0510ff6_4 defaults
vs2015_runtime 14.15.26706 h3a45250_0 defaults
wheel 0.32.3 py36_0 defaults
wincertstore 0.2 py36h7fe50ca_0 defaults