pip install py-slvs error on debian trixie

[khimaros]

due to new limitations on pip install --user (it is disallowed), installing py-slvs fails on A3 startup.

error: externally-managed-environment

× This environment is externally managed
╰─> To install Python packages system-wide, try apt install
    python3-xyz, where xyz is the package you are trying to
    install.

the workaround i've found for this is to manually install to /usr/local as root.

this can be accomplished with the following command:

pip install --prefix /usr py-slvs