RFC: pip install west and PEP 668

[Chris-StJohn-Bose]

I recently ran into a problem with Debian 12 (bookworm) on a private Docker environment for Zephyr and decided to see how this repo solves it. Short answer: it doesn't.

https://pythonspeed.com/articles/externally-managed-environment-pep-668/

Right now the Dockerfiles are using ubuntu-22.04 which isn't affected by PEP 668. However, the next Ubuntu LTS almost certainly will be. Solutions are fairly stark:

• Wait for Ubuntu to package west and the other Zephyr tools so it can be installed with apt rather than pip
• Run all Zephyr tools inside a Python virtual environment
• Invoke the --break-system-packages flag on the assumption that everything will probably(?) be ok

[stephanosio]

• Run all Zephyr tools inside a Python virtual environment

I would say this would be the most sensible solution.