How can I delete /usr/bin/python3 (older version of Python)

Question

I used to use Python 3.10.4 but I installed Python 3.8.9, Python 3.8.10 to use GPU on my 2019 MBP (Mac OS Monterey 12.4) but it did not work.

So I tried to uninstall all of my old versions of Python (3.8.9 and 3.8.10) but when I go to VSCode and select kernel for my new Jupyter Notebook file, the list shows Python 3.8.9 and 3.10.4.

And when I go to my Terminal app and I do not find 3.8.9.

Can you help me with this problem showing old version of Python?

Answer 1

The python stored inside /usr/local/bin is a python installed by you, and it may be removed or updated.
In other side, python stored in /usr/bin is a default python that comes with macOS from beginning (you didn't install it)

macOS trying to use default (protected from changes) version when running some python dependable system applications. If you remove default version, that may break some OS features.

It is possible to remove default applications inside /usr/bin after turning off SIP, but I don't recommend to do that