April 2018
Beginner
238 pages
7h 13m
English
Assuming you have installed the standard Jupyter package, you now have Python 2 as the only engine available at the top of the Jupyter portal screen:

To upgrade to Python 3, I used the commands:
conda create -n py3k python=3 anaconda source activate py3k ipython kernelspec install-self
After this, when you start Jupyter, you will have the Python 3 engine choice.
You may prefer to have the Python 2 engine also available. This could be if you want to use scripts that were written using Python 2.
The commands to add Python 2 back in as an engine choice are:
python2 -m pip install ipykernel python2 -m ipykernel install ...