[Python] commits to debug mostly python in medInria

[mathildemerle]

From PR:

• https://github.com/Inria-Asclepios/medInria-public/pull/762
• https://github.com/Inria-Asclepios/medInria-public/pull/763
• https://github.com/Inria-Asclepios/medInria-public/pull/768
• https://github.com/Inria-Asclepios/medInria-public/pull/769
• https://github.com/Inria-Asclepios/medInria-public/pull/780
• https://github.com/Inria-Asclepios/medInria-public/pull/784

These are PR from MUSICardio to debug python in medInria and some other stuff needed for the next medInria release.

:m: