After installing with pip, "jupyter: command not found"

Question

you did not log out and log in ? It should be on your path to execute. If not, pip installed executables in .local, so in a terminal:

 ~/.local/bin/jupyter-notebook

should start notebook

To be able to run jupyter notebook from terminal, you need to make sure that ~/.local/bin is in your path.

Do this by running export PATH=$PATH:~/.local/bin for your current session, or adding that line to the end of ~/.bashrc to make your changes last for future sessions (e.g. by using nano ~/.bashrc). If you edit ~/.bashrc you will need to log out and log back in to make see your changes take effect.

Try

python -m notebook

Or, if you used pip3 to install the notebook:

python3 -m notebook

On Mac OS Catalina and brewed Python3.7

I tried both,

pip install jupyter

and

pip3 install jupyter

but finally got it done using

sudo -H pip install jupyter

execute a command as another user -H

The -H (HOME) option requests that the security policy set the HOME environment variable to the home directory of the target user (root by default) as specified by the password database. Depending on the policy, this may be the default behavior.

Execute this in Terminal

export PATH=~/anaconda3/bin:$PATH

Worked for me on Ubuntu 16.10, Python3, Anaconda3

UPDATE

Add path in your ~/.bashrc or ~/.zshrc(if you are using zsh bash) file

vi ~/.bashrc

add the below line to the file

PATH=~/path/to/anaconda:$PATH

Close the file with

esc + : + wq

On Mac OS you need to export ~/.local/bin inside your $PATH variable.

# Edit the bash profile:
$ vim ~/.bash_profile

# Add this line inside ~/.bash_profile:
export PATH=$PATH:~/.local/bin

# Update the source:
$ source ~/.bash_profile

# Open Jupyter:
$ jupyter notebook