Python can't Import/Find STLIB or SPLIB in Downloaded SOFA Binaries for Linux

[iman-adibnazari]

Hello,

I am trying to go through some tutorials using SofaPython3, specifically the tutorials in the SoftRobots library. However, many of them require importing stlib3 or splib3, neither of which seem to be in the site-packages folder for the SofaPython3 library. The instructions for the current STLIB repository seem to require rebuilding from scratch. I was wondering if there is a way to simply install the stlib3 and splib3 libraries and integrate them into the current Sofa binary release.

[alxbilger]

When I see the list of plugins available with the latest version of the SOFA binaries, I can see STLIB (https://www.sofa-framework.org/download/).
STLIB is not part of SofaPython3. It's a different plugin with its own Python modules. I doubt that you need to rebuild from scratch just for having STLIB working.
Can you confirm that you are able to run example from SofaPython3 (without STLIB)?

[iman-adibnazari]

I have that added as well. But I still get an error when trying to import the stlib3 and splib3 libraries. I looked inside the directory at %SOFA_ROOT%\lib\python3\site-packages and did not see packages for stlib3 or splib3.

[hugtalbot]

Hi @iman-adibnazari
For the SOFA binary V22.12 on Linux, you should have this path present in your PYTHONPATH :
SOFA_v22.12.00_Linux/plugins/STLIB/lib/python3/site-packages/

This should do it

[iman-adibnazari]

Hi Hugo,

Thank you for the reply! I am running SOFA_V22.06.00 and I already have that added SOFA_v22.06.00_Linux/plugins/STLIB/lib/python3/site-packages/ to my PYTHONPATH but am still unable to import stlib3. I feel that I've adjusted the environment variables correctly because I am able to run SOFA from my Python environment as long as the script doesn't import stlib3 or splib3 - I just can't run Python scripts that import stlib3 or splib3.

Thank you,
Iman

[hugtalbot]

Hi @iman-adibnazari
Sorry the delay have you been able to solve your problem ?

You could take the opportunity to upgrade your SOFA version with the latest v23.06
With the release v23.06, my PYTHONPATH looks like:

export PYTHONPATH=~/SOFA_v23.06.00_Linux/plugins/SofaPython3/lib/python3/site-packages/:~/SOFA_v23.06.00_Linux/plugins/STLIB/lib/python3/site-packages/:~SOFA_v23.06.00_Linux/plugins/CosseratPlugin/lib/python3/site-packages/

and importing stlib3 works smoothly for me

[iman-adibnazari]

Hi @hugtalbot,
No worries at all. I was not able to solve my problem quite yet. But I think I will upgrade my SOFA version as you suggested and see if it persists. Thank you for the suggestion!