The Debian Docker build or CI output shows that a number of the packages we install as Debian packages are being re-installed from PyPI later in the build. For example:
What's the point of using --system-site-packages if this is happening? Investigate why these are being reinstalled.
This no longer appears to be an issue. For example, "pytest" is being installed from OS package in our Debian 12 build and is not being reinstalled from PyPI.