PIP installers available!

 
Dear NGSolve users,

Finally we managed to provide pip-installers for our software. This means, installing NGSolve on your computer now becomes as easy as py!
pip install ngsolve

For Linux, we also provide an ngsolve-avx2 package which is compiled using AVX2 instructions (only working on supported hardware).

Also nightly builds will be provided (use the --pre flag of pip to install prerelease versions).

Similar to the conda installers, run-time code generation is currently not supported on all platforms, but we are working on it.

Best,
The NGSolve Team
 

Some people reported problems starting Python after installing the ngsolve pip-package on MacOS, and after rebooting. Updating ngsolve to the NGSolve-6.2.2202 release solves the problem.
If pip is also not working (because of this problem), you can manually delete the directory /Library/Frameworks/Python.framework/Versions/3.10/Contents ( change 3.10 to your python version).

The error message you get, when having this problem looks like this:
dyld[3600]: Library not loaded: /Library/Frameworks/Python.framework/Versions/3.10/Python
  Referenced from: /Library/Frameworks/Python.framework/Versions/3.10/bin/python3.10
  Reason: tried:  '/Library/Frameworks/Python.framework/Versions/3.10/Python' (code signature invalid (errno=1) sliceOffset=0x004B0000, codeBlobOffset=0x00483BA0, codeBlobSize=0x000135F0 for 

Best,
Matthias

I am having issues with installing it through pip on Ubuntu 21.10. It does not seem to install with umfpack, something that the apt version did.

Running the following line ```a_assembled.mat.Inverse(freedofs=freedofs, inverse="umfpack")``` works with the apt version, but crashes the pip installation.

Is this an oversight, a temporary limitation, or a permanent limitation of the pip install?

Additionally, this page  shows the default CMake options when building from source. Is there a list to show which options are enabled for the different distribution modes (pip, apt, conda, etc.) of NGSolve?
 

Any update on this?

Hi everyone!
I tried the pip installer on windows with anaconda

Running the conda environement
conda create -n test python=3.9
I gave pip install ngsolve a try. The install works, even netgen opens a gui, but ngsolve cannot find ngslib.
(EDIT: I tried without conda and got the same result.)

from .ngslib import __version__, ngstd, bla, la, fem, comp, solve
ImportError: DLL load failed while importing ngslib: The specified module could not be found.

I tried to add everything to PATH and PYTHONPATH by hand without success. I uploaded the output of conda info --system here

I also tried
conda install -c ngsolve ngsolve
but could not find a python version that would satisfy the specifications. I tried python3.9 giving
 - ngsolve -> python[version='>.7,.8.0a0|>.8,.9.0a0']
so I tried python3.7 telling me
 - ngsolve -> python[version='>=2.7,<2.8.0a0|>.6,.7.0a0|>.10,.11.0a0|>.9,.10.0a0']

Any hints to get this working?

Cheers,
Paul

Dear Developers,
I am facing the very same problems described by  paul.stocker .
Which version of Anaconda should we use?
Is there a workaround to solve the problem?
Thanks a lot and best regards,
Mauro Sgroi.