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I just updated my macOS to Catalina and I can't run python or open a jupyter notebook from terminal anymore. As an example, I get error message "ImportError: No module named pandas" when running my python code, and I get
zsh: command not found: jupyter
when running
jupyter notebook
This issue has brought me to anaconda (I would love someone to explain me why. Does python need anaconda to be ran?). I have tried several suggestions from https://github.com/ContinuumIO/anaconda-issues/issues/10998, e.g. I have tried copying folder "anaconda3" from "Relocated items" folder to "Users//", then
export PATH=''/Users/<username>/anaconda3/bin:$PATH"
but I get either
dquote>
or
zsh: /Users//Applications/anaconda3/bin/conda: bad interpreter: /anaconda3/bin/python: no such file or directory
I then tried to reinstall Anaconda using the graphic installer (from https://www.anaconda.com/distribution/#macos) following advice from someone from the anaconda team (https://www.anaconda.com/how-to-restore-anaconda-after-macos-catalina-update/) (I changed installation location to a folder I created in /Users//) but I still get the same error messages when running python3 or jupyter notebook.
How can successfully run python and jupyter notebook with macOS Catalina?
304
"Command jupyter not found":You may need to add the directory where you installed jupyter or pip to your PATH variable... For example, if you successfully installed jupyter but it's complaining that the command is not found, try adding ~/Library/Python/2. XXX/bin and ~/bin to your path.
Restart your command prompt and all your python scripts should run directly on the command prompt anywhere. PS : Also, make sure that your jupyter scripts are there in the Python Scripts folder. A proper installation of Jupyter via pip should have ensured this.
3.1. To launch Jupyter Notebook App: Click on spotlight, type terminal to open a terminal window. Enter the startup folder by typing cd /some_folder_name . Type jupyter notebook to launch the Jupyter Notebook App The notebook interface will appear in a new browser window or tab.
After installed macOS Catalina, we can switch the terminal from bash to zsh. There are many advantages from using zsh instead of bash, but One of the issues with zsh is some of the frameworks (jupyter notebook,conda) are not supported directly. Once I typed jupyter notebook in terminal to run it. It displayed “zsh: no such file or directory”.
The solver is simple but very difficult to find online. If jupyter was already installed before the update and stopped working after zsh, you should be able to fix it by: 1.open zshrc in terminal by typing: open .zshrc or $open .zschrc 2. add the following line at the end of the file: source ~/.bash_profile It will ask zsh to use all the information from bash like the path of jupyter.
Hope it can help you out!
146
I'm answering to my own question in case it can help others ;)
I found my answer here: https://medium.com/@singhaniatanay18/mac-os-catalina-update-zsh-instead-of-bash-d688f68f70b8
(see comments as well)
31
Mac OS BigSur:
rm -f Anaconda-Navigator.app
pip3 install jupyterlab
30
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