Hi Konsonot,
Thanks for your reply,
To answer your question ,
"why this hard way of installing and using Telemac?"
After perfectly installing and running telemac on my laptop with linux Ubuntu 18.04 lts (failing in MS windows 8.1), I attempted to do the same on 2 other laptops and.... after "succesfully installed ( config.py said my work is done) I failed when running examples, most of time for acces denied over some modules. The OS were Linux Mint (2 diff version), Ubuntu 21.10. As I didn't install those versions, I said to myself it can be either the installation process of the OS, or the distro/version of the OS ... That's why I am testing different ways for installing and running Telemac on virtual machine for diff Distros (Mint, Debian, Ubuntu),before disturbing you on this forum... Or not...
Regards
Josias.