<p dir="auto">I do see the numpy package among site packages under lib directory! But it fails to import numpy. Here is the error I get when I try to import numpy on anaconda3:</p>
<p dir="auto">Traceback (most recent call last):</p>
<p dir="auto">File "", line 1, in <br>
import matplotlib</p>
<p dir="auto">File "C:\Users\Maryam\AppData\Roaming\Python\Python37\site-packages\matplotlib_<em>init</em>_.py", line 141, in <br>
from . import cbook, rcsetup</p>
<p dir="auto">File "C:\Users\Maryam\AppData\Roaming\Python\Python37\site-packages\matplotlib\cbook_<em>init</em>_.py", line 33, in <br>
import numpy as np</p>
<p dir="auto">File "C:\Users\Maryam\AppData\Roaming\Python\Python37\site-packages\numpy_<em>init</em>_.py", line 142, in <br>
from . import core</p>
<p dir="auto">File "C:\Users\Maryam\AppData\Roaming\Python\Python37\site-packages\numpy\core_<em>init</em>_.py", line 47, in <br>
raise ImportError(msg)</p>
<p dir="auto">ImportError:</p>
<p dir="auto">IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!</p>
<p dir="auto">Importing the multiarray numpy extension module failed.  Most<br>
likely you are trying to import a failed build of numpy.<br>
Here is how to proceed:</p>
<ul dir="auto">
<li>If you're working with a numpy git repository, try <code class="notranslate">git clean -xdf</code><br>
(removes all files not under version control) and rebuild numpy.</li>
<li>If you are simply trying to use the numpy version that you have installed:<br>
your installation is broken - please reinstall numpy.</li>
<li>If you have already reinstalled and that did not fix the problem, then:
<ol dir="auto">
<li>
<p dir="auto">Check that you are using the Python you expect (you're using C:\Users\Maryam\Anaconda3\pythonw.exe),<br>
and that you have no directories in your PATH or PYTHONPATH that can<br>
interfere with the Python and numpy versions you're trying to use.</p>
</li>
<li>
<p dir="auto">If (1) looks fine, you can open a new issue at<br>
<a href="https://github.com/numpy/numpy/issues">https://github.com/numpy/numpy/issues</a>.  Please include details on:</p>
<ul dir="auto">
<li>how you installed Python</li>
<li>how you installed numpy</li>
<li>your operating system</li>
<li>whether or not you have multiple versions of Python installed</li>
<li>if you built from source, your compiler versions and ideally a build log</li>
</ul>
<p dir="auto">Note: this error has many possible causes, so please don't comment on<br>
an existing issue about this - open a new one instead.</p>
</li>
</ol>
</li>
</ul>
<p dir="auto">Original error was: No module named 'numpy.core._multiarray_umath'</p>
<p dir="auto">Create fresh virtual env with Anaconda Navigator 1.9.6 under Windows 10, selecting Python 3.7, naming python37</p>
<p dir="auto">In the console of VSCode:</p>
<ul dir="auto">
<li>activate python37</li>
<li>pip install numpy</li>
</ul>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="(python37) D:\TfsProj\alphastone&gt;pip install numpy
Collecting numpy
  Using cached https://files.pythonhosted.org/packages/41/b8/3a6b07352c2542ca1c89be7583e7ca07bf513895b6ac59ae008054f326b1/numpy-1.16.1-cp37-cp37m-win_amd64.whl
Installing collected packages: numpy
Successfully installed numpy-1.16.1"><pre class="notranslate"><code class="notranslate">(python37) D:\TfsProj\alphastone&gt;pip install numpy
Collecting numpy
  Using cached https://files.pythonhosted.org/packages/41/b8/3a6b07352c2542ca1c89be7583e7ca07bf513895b6ac59ae008054f326b1/numpy-1.16.1-cp37-cp37m-win_amd64.whl
Installing collected packages: numpy
Successfully installed numpy-1.16.1
</code></pre></div>
<p dir="auto">(same with parameter --no-cache-dir)</p>
<ul dir="auto">
<li>python</li>
<li>import numpy</li>
</ul>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="(python37) D:\TfsProj\alphastone&gt;python
Python 3.7.2 (default, Feb 11 2019, 14:11:50) [MSC v.1915 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type &quot;help&quot;, &quot;copyright&quot;, &quot;credits&quot; or &quot;license&quot; for more information.
&gt;&gt;&gt; import numpy
Traceback (most recent call last):
  File &quot;C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\core\__init__.py&quot;, line 16, in &lt;module&gt;
    from . import multiarray
  File &quot;C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\core\multiarray.py&quot;, line 12, in &lt;module&gt;
    from . import overrides
  File &quot;C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\core\overrides.py&quot;, line 6, in &lt;module&gt;
    from numpy.core._multiarray_umath import (
ImportError: DLL load failed: Das angegebene Modul wurde nicht gefunden.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File &quot;&lt;stdin&gt;&quot;, line 1, in &lt;module&gt;
  File &quot;C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\__init__.py&quot;, line 142, in &lt;module&gt;
    from . import core
  File &quot;C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\core\__init__.py&quot;, line 47, in &lt;module&gt;
    raise ImportError(msg)
ImportError:

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!"><pre class="notranslate"><code class="notranslate">(python37) D:\TfsProj\alphastone&gt;python
Python 3.7.2 (default, Feb 11 2019, 14:11:50) [MSC v.1915 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
&gt;&gt;&gt; import numpy
Traceback (most recent call last):
  File "C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\core\__init__.py", line 16, in &lt;module&gt;
    from . import multiarray
  File "C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\core\multiarray.py", line 12, in &lt;module&gt;
    from . import overrides
  File "C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\core\overrides.py", line 6, in &lt;module&gt;
    from numpy.core._multiarray_umath import (
ImportError: DLL load failed: Das angegebene Modul wurde nicht gefunden.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  File "C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\__init__.py", line 142, in &lt;module&gt;
    from . import core
  File "C:\Users\Name\.conda\envs\python37\lib\site-packages\numpy\core\__init__.py", line 47, in &lt;module&gt;
    raise ImportError(msg)
ImportError:

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!
</code></pre></div>
<p dir="auto">All advices, reinstallations via pip and conda, or different numpy versions (e.g. 1.15.4) didn't solve this issue for me.</p>
<p dir="auto">If I do multiple pip uninstall numpy until there is no numpy left, and then do a conda install numpy, importing numpy interestingly works (in 1.15.4).</p>
<p dir="auto">A conda install numpy does the following:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="The following NEW packages will be INSTALLED:

  blas               pkgs/main/win-64::blas-1.0-mkl
  icc_rt             pkgs/main/win-64::icc_rt-2019.0.0-h0cc432a_1
  intel-openmp       pkgs/main/win-64::intel-openmp-2019.1-144
  mkl                pkgs/main/win-64::mkl-2019.1-144
  mkl_fft            pkgs/main/win-64::mkl_fft-1.0.10-py37h14836fe_0
  mkl_random         pkgs/main/win-64::mkl_random-1.0.2-py37h343c172_0
  numpy              pkgs/main/win-64::numpy-1.15.4-py37h19fb1c0_0
  numpy-base         pkgs/main/win-64::numpy-base-1.15.4-py37hc3f5095_0"><pre class="notranslate"><code class="notranslate">The following NEW packages will be INSTALLED:

  blas               pkgs/main/win-64::blas-1.0-mkl
  icc_rt             pkgs/main/win-64::icc_rt-2019.0.0-h0cc432a_1
  intel-openmp       pkgs/main/win-64::intel-openmp-2019.1-144
  mkl                pkgs/main/win-64::mkl-2019.1-144
  mkl_fft            pkgs/main/win-64::mkl_fft-1.0.10-py37h14836fe_0
  mkl_random         pkgs/main/win-64::mkl_random-1.0.2-py37h343c172_0
  numpy              pkgs/main/win-64::numpy-1.15.4-py37h19fb1c0_0
  numpy-base         pkgs/main/win-64::numpy-base-1.15.4-py37hc3f5095_0
</code></pre></div>
<p dir="auto">What's missing for the pip way?<br>
Any ideas?</p>