Jupyter - how to run and install? - jupyter-notebook

Question

I need to install jupyter notebook on two computers (both Linux Mint 19.2 Tina).
On one computer I have installed it and run
jupyter notebook
I can't run the cell. I click to run and nothing happens. What does not connected mean?
On the second computer I run
jupyter notebook
and there is an error:
Traceback (most recent call last):
File "/home/linux/.local/bin/jupyter-notebook", line 5, in <module>
from notebook.notebookapp import main
File "/home/linux/.local/lib/python2.7/site-packages/notebook/__init__.py", line 25, in <module>
from .nbextensions import install_nbextension
File "/home/linux/.local/lib/python2.7/site-packages/notebook/nbextensions.py", line 31, in <module>
from .config_manager import BaseJSONConfigManager
File "/home/linux/.local/lib/python2.7/site-packages/notebook/config_manager.py", line 15, in <module>
from traitlets.config import LoggingConfigurable
File "/home/linux/.local/lib/python2.7/site-packages/traitlets/__init__.py", line 1, in <module>
from .traitlets import *
File "/home/linux/.local/lib/python2.7/site-packages/traitlets/traitlets.py", line 49, in <module>
import enum
ImportError: No module named enum
I tried to install it
pip install --user pip enum34
pip install --upgrade pip enum34
but it didn't help. Is it only for python3?
EDIT
Another problem: there is no python2 python3 in the notebook options.
Terminal:
jupyter notebook
[I 13:08:08.694 NotebookApp] Serving notebooks from local directory: /media/linux/DATADISK/venv
[I 13:08:08.694 NotebookApp] The Jupyter Notebook is running at:
[I 13:08:08.694 NotebookApp] http://localhost:8888/?token=7344956fea0cbfc5eaab06066d8503fa35ba999123e5908c
[I 13:08:08.694 NotebookApp] or http://127.0.0.1:8888/?token=7344956fea0cbfc5eaab06066d8503fa35ba999123e5908c
[I 13:08:08.694 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 13:08:08.697 NotebookApp]
To access the notebook, open this file in a browser:
file:///home/linux/.local/share/jupyter/runtime/nbserver-12847-open.html
Or copy and paste one of these URLs:
http://localhost:8888/?token=7344956fea0cbfc5eaab06066d8503fa35ba999123e5908c
or http://127.0.0.1:8888/?token=7344956fea0cbfc5eaab06066d8503fa35ba999123e5908c
ERROR:
python3 -m ipykernel install --user
Traceback (most recent call last):
File "/usr/lib/python3.6/runpy.py", line 183, in _run_module_as_main
mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
File "/usr/lib/python3.6/runpy.py", line 142, in _get_module_details
return _get_module_details(pkg_main_name, error)
File "/usr/lib/python3.6/runpy.py", line 109, in _get_module_details
__import__(pkg_name)
File "/home/linux/.local/lib/python3.6/site-packages/ipykernel/__init__.py", line 2, in <module>
from .connect import *
File "/home/linux/.local/lib/python3.6/site-packages/ipykernel/connect.py", line 13, in <module>
from IPython.core.profiledir import ProfileDir
File "/usr/lib/python3/dist-packages/IPython/__init__.py", line 49, in <module>
from .terminal.embed import embed
File "/usr/lib/python3/dist-packages/IPython/terminal/embed.py", line 18, in <module>
from IPython.terminal.interactiveshell import TerminalInteractiveShell
File "/usr/lib/python3/dist-packages/IPython/terminal/interactiveshell.py", line 20, in <module>
from prompt_toolkit.shortcuts import create_prompt_application, create_eventloop, create_prompt_layout, create_output
ImportError: cannot import name 'create_prompt_application'

Answer 1

Try a fresh start with Jupiter in a new environment.
Note: If you are using python 2.7 you need to make sure venv is installed. A