Venv module upgrade support for Python installs in same dir, from source using target altinstall?

Ideas
1

Today I learned about the venv module’s --upgrade flag. Cool!

I wondered if it might support updating virtualenvs created from Python installed from source using target altinstall, all located in the same containg dir. I tried this out, and found that it updated the venv’s pyenv.cfg but not the links in venv/bin

It would be great if the --upgrade flag supported Python installations located in the same containing dir, including those installed from source using target altinstall, though they’re not official system installs.

2

Correct, because it’s “assuming Python has been upgraded in-place.” So all it does it update pyvenv.cfg as it assumes the symlinks already point to the upgraded Python.