Jupyter Notebook - Install Python 2

EDITED I'm very new to python and have a probably super basic question. I've installed Jupyter Notebook by installing anaconda which includes python 3 by default. Now I want to use

Solution 1:

I had the same issue. You can try starting jupyter-notebook from python2

$ python2 /path/to/jupyter-notebook

in my case running python2 /usr/bin/jupyter-notebook fixed the issue.

shebang in my case

$ head -1 /usr/bin/jupyter-notebook#!/usr/bin/python3.4$

Solution 2:

Have you tried looking at the Jupyter Notebook homepage?

Just use

pip install jupyter

or

pip install jupyter --user

Solution 3:

I still don't know why it doesn't work, but i found out what worked instead. Using

conda create -n ipykernel_py2 python=2 ipykernel
activate ipykernel_py2    
python -m ipykernel install --user

in the Anaconda Prompt added the option to open a python 2 notebook in the Jupyter Notebook. Also I can change the Kernel now to python 2.