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Try to run
python3 -m netgen
to start the version you installed with netgen (the warning you got with installation is no problem)

Best,
Matthias

I did this and got this popup screen below. the thing is I removed the Netgen bundle so I dont have it on my mac anymore. should I redownload the Netgen?  see below for the popup screen/Users/farahpiatek/Library/Python/3.9/lib/python/site-packages/netgen/__main__.py:1: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses  import imp, threading, sysDEPRECATION WARNING: The system version of Tk is deprecated and may be removed in a future release. Please don't rely on it. Set TK_SILENCE_DEPRECATION=1 to suppress this warning. [Process completed]     

Hello, I am experiencing a similar issue that was described previously with the DLL failures for libngpy. Attempting to run the netgen command in cmd or anaconda terminal with either Python 3.10 or 3.7, or running the first step under poisson.ipynb returns the same error I have tried the previous solutions using the import os method to Jupyter notebook but the same error for libngpy is returned. I have also tried adding the directories directly to path, I am not sure what else to try.

Launching the netgen application directly works and opens the gui but I would prefer to work through Jupyter if possible.

I am using Windows 10

Any insight would be appreciated.

Thank you in advance,
Jackson

I have the same problem as @paul.stocker. I tried to install ngsolve with pip on windows and when trying to import ngsolve, the following error pops up:
from .ngslib import __version__, ngstd, bla, la, fem, comp, solve
ImportError: DLL load failed while importing ngslib: The specified module could not be found.
Did anyone find a solution for this problem?

 

For anyone encountering the same issue:
I was finally able to resolve it! It was an package issue for me, as i work with anaconda.
After creating a new environment with conda and python 3.9, i used pip to install ngsolve ( and numpy,matplotlib,scikit-image) and everything worked fine. But when I started the python script I got the DLL Error as shown in the previous message.
When I checked the packages inside the environment with "conda list" I noticed that mkl, netgen-mesher and intel-openmp where missing. They were installed in the python39 file (c:\users\...\appdata\roaming\python\python39\site-packages) instead of the corresponding environment file (C:\ProgramData\anaconda3\envs\myenv\Lib\site-packages).
So i just uninstalled and re-installed mkl and netgen-mesher from inside the environment and checked the list again, where the missing packages now appeared. And then when running the script again, it worked!
I hope this helps someone.

PS: This is my working package list, if someone needs it:
# Name                    Version                   Build  Channel
ca-certificates           2023.01.10           haa95532_0
contourpy                 1.0.7                    pypi_0    pypi
cycler                    0.11.0                   pypi_0    pypi
fonttools                 4.39.3                   pypi_0    pypi
imageio                   2.28.1                   pypi_0    pypi
importlib-resources       5.12.0                   pypi_0    pypi
intel-openmp              2022.2.1                 pypi_0    pypi
kiwisolver                1.4.4                    pypi_0    pypi
lazy-loader               0.2                      pypi_0    pypi
matplotlib                3.7.1                    pypi_0    pypi
mkl                       2022.2.1                 pypi_0    pypi
netgen-mesher             6.2.2302                 pypi_0    pypi
networkx                  3.1                      pypi_0    pypi
ngsolve                   6.2.2302                 pypi_0    pypi
numpy                     1.24.3                   pypi_0    pypi
openssl                   1.1.1t               h2bbff1b_0
packaging                 23.1                     pypi_0    pypi
pillow                    9.5.0                    pypi_0    pypi
pip                       23.0.1           py39haa95532_0
pyparsing                 3.0.9                    pypi_0    pypi
python                    3.9.16               h6244533_2
python-dateutil           2.8.2                    pypi_0    pypi
pywavelets                1.4.1                    pypi_0    pypi
scikit-image              0.20.0                   pypi_0    pypi
scipy                     1.9.1                    pypi_0    pypi
setuptools                66.0.0           py39haa95532_0
six                       1.16.0                   pypi_0    pypi
sqlite                    3.41.2               h2bbff1b_0
tbb                       2021.9.0                 pypi_0    pypi
tifffile                  2023.4.12                pypi_0    pypi
tzdata                    2023c                h04d1e81_0
vc                        14.2                 h21ff451_1
vs2015_runtime            14.27.29016          h5e58377_2
wheel                     0.38.4           py39haa95532_0
zipp                      3.15.0                   pypi_0    pypi