How to run 'pkg upgrade' as requested by apt?

[Chris Green <cl@isbd.net>]

I recently did an 'apt update' and 'apt upgrade' on my bookworm system.

In the 'apt upgrade' output there is the following:-

    Setting up python (3.12.7-1) ...

    NOTE: The system python package has been updated to 3.12.
    NOTE: Run 'pkg upgrade' to update system python packages.
    NOTE: Packages installed using pip needs to be re-installed.

Where/how do I run 'pkg upgrade'?  It's not directly from the command
line (no 'pkg'), is it from a Python prompt?  ... or in pip?

I tried a web search but all I got was lots of unwanted information
about pip installed packages.

-- 
Chris Green
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