[FIXED] How to resolve `/usr/local/opt/python/bin/python3.7 bad interpreter: No such file or directory` for jupyter notebook?

Issue

I tried to start jupyter notebook the way I have been for a long time, and I get the following output:

$jupyter notebook

bash: /usr/local/bin/jupyter: /usr/local/opt/python/bin/python3.7: bad interpreter: No such file or directory

Upon inspiration from this I discovered that the file /usr/local/bin/jupyter contained a path to /usr/local/opt/python/bin/python3.7, which was a nonexistent file. So, I changed the path to the following /usr/local/bin/python3.10 at the first line of /usr/local/bin/jupyter, so it looks like this:

#!/usr/local/bin/python3.10 

import re 

import sys 

from jupyter_core.command import main 

if __name__ == '__main__': 

    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0]) 

    sys.exit(main()) 

This seemed like a promising solution to me. However, when I run jupyter notebook again, I’m getting the following output:

Traceback (most recent call last): 

  File "/usr/local/bin/jupyter", line 5, in <module> 

    from jupyter_core.command import main 

ModuleNotFoundError: No module named 'jupyter_core' 

However, none of the solutions listed at https://github.com/jupyter/notebook/issues/3464 were able to resolve this for me.

Finally, I tried reinstall jupyter via pip3 install jupyter, but it’s giving me a legacy install error for libxml2 (happy to share details on that if they’re relevant).

Am I missing an easier way to resolve this issue with jupyter notebook? Or do I need to modify this path in other files as well?

Solution

Uninstalling via brew, and overwriting the existing jupyter notebook files worked:

brew uninstall jupyter brew link --overwrite jupyterlab

Still no resolution on why pip3 install jupyter didn't work.

Answered By - makansij