Python and pip incompatible

I've installed python via Macports and have now Python 3.12. (MacOS 11 comes with Python 3.8) When I run pip3 --version I get this: /Users/ingmar/Library/Python/3.8/lib/python/site-packages/pip (python 3.8) And more importendly, packages installed via pip3 are not found when running the script via python3, which now points to Python 3.12 from Macports. (Don't know how to run Python 3.8 from MacOS) I've also installed py-pip from Macports and ran sudo port select --set pip3 pip312, but the pip3 --version output remains the same. So, how do I make pip3 to point to the version installed via Macports so that packages installed can be found by python3?