How to reset all installation with jupyter and python different versions?

Question

There has a been an issue with the python installation. I cannot run commands anymore on Mac unless I do python3 -m command. I also have installed with brew python@3.11 and python@3.12, but I haven't found a way to run the jupyter notebook command, though it is installed (as I installed it with pip3), doing upgrades and all. It seems that I should better reset all configurations from python. I removed the usr/local/lib opt and bin python named files and if I run with anaconda it seems that the jupyter notebook opens, but it doesn't run the cells Could you please unlock this situation ? So for more information I tried as well brew reinstall brew link brew unlink

Here is the error message on the jupyter lab or on the jupyter notebook

[I 2024-04-17 21:04:15.446 ServerApp] AsyncIOLoopKernelRestarter: restarting kernel (5/5), new random ports Traceback (most recent call last): File "/usr/local/Cellar/python@3.9/3.9.19/Frameworks/Python.framework/Versions/3.9/lib/python3.9/runpy.py", line 197, in _run_module_as_main return _run_code(code, main_globals, None, File "/usr/local/Cellar/python@3.9/3.9.19/Frameworks/Python.framework/Versions/3.9/lib/python3.9/runpy.py", line 87, in _run_code exec(code, run_globals) File "/usr/local/lib/python3.9/site-packages/ipykernel_launcher.py", line 16, in from ipykernel import kernelapp as app File "/usr/local/lib/python3.9/site-packages/ipykernel/init.py", line 7, in from .connect import * # noqa: F403 File "/usr/local/lib/python3.9/site-packages/ipykernel/connect.py", line 12, in import jupyter_client File "/usr/local/lib/python3.9/site-packages/jupyter_client/init.py", line 3, in from .asynchronous import AsyncKernelClient File "/usr/local/lib/python3.9/site-packages/jupyter_client/asynchronous/init.py", line 1, in from .client import AsyncKernelClient # noqa File "/usr/local/lib/python3.9/site-packages/jupyter_client/asynchronous/client.py", line 8, in import zmq.asyncio File "/usr/local/lib/python3.9/site-packages/zmq/init.py", line 52, in from zmq import backend File "/usr/local/lib/python3.9/site-packages/zmq/backend/init.py", line 30, in raise original_error from None File "/usr/local/lib/python3.9/site-packages/zmq/backend/init.py", line 25, in _ns = select_backend(first) File "/usr/local/lib/python3.9/site-packages/zmq/backend/select.py", line 31, in select_backend mod = import_module(name) File "/usr/local/Cellar/python@3.9/3.9.19/Frameworks/Python.framework/Versions/3.9/lib/python3.9/importlib/init.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "/usr/local/lib/python3.9/site-packages/zmq/backend/cython/init.py", line 6, in from . import _zmq File "/usr/local/lib/python3.9/site-packages/zmq/backend/cython/_zmq.py", line 14, in raise ImportError("zmq Cython backend has not been compiled") from None ImportError: zmq Cython backend has not been compiled [W 2024-04-17 21:04:18.472 ServerApp] AsyncIOLoopKernelRestarter: restart failed [W 2024-04-17 21:04:18.472 ServerApp] Kernel 37259402-9bfc-432c-af8a-5482035517b9 died, removing from map.

Answer 1

I actually rebooted the computer and it worked