Cannot start Jupyterlab from the terminal after installation of Jupyterlab with pip3 and python3 with homebrew

Question

I want to start Jupyterlab from the terminal

I'm on MacOS 10.14. I installed Python with Homebrew I tried to install Jupyter lab with brew install jupyterlab but it gave me the following error message:

Error: No available formula with the name "jupyterlab" 
==> Searching for a previously deleted formula (in the last month)...
Warning: homebrew/core is shallow clone. To get complete history run:
  git -C "$(brew --repo homebrew/core)" fetch --unshallow

Error: No previously deleted formula found.
==> Searching for similarly named formulae...
Error: No similarly named formulae found.
==> Searching taps...
==> Searching taps on GitHub...
Error: No formulae found in taps.

I the tried installed it with pip3 with the command pip3 install jupyterlab. It worked. But when I tried to launch it with the command jupyter lab, I got the following error message: Error executing Jupyter command 'lab':

[Errno 2] No such file or directory

When I run the command brew list, jupyterlab is not in the list

I'm suspecting that the problem lies in the fact that pip3 and homebrew don't manage the PATH the same way and that the problem lies there. What should I do

ecjb · Accepted Answer · 2019-03-31 21:35:10Z

1

Ok I just reinstalled jupyter with brew (brew reinstall jupyter) , re-installed jupyterlab with pip3 install jupyter lab and it worked!

answered Mar 31, 2019 at 21:35

ecjb

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