Jupyter lab installing/importing packages

Question

I am trying to install plotnine for a notebook I am using. I have done the following:

1. Created a conda environment using python 3.6, an

Answer 1

I had the same problem. It looks like for me, my notebook in Jupyter Lab was running the base kernel and not the kernel of the virtual environment. Type

import sys
sys.executable

into your notebook. For me, I got the result

'/anaconda3/bin/python'

instead of the desired

'/anaconda3/envs/myenv/bin/python'

I solved it by following the instructions in the iPython documentation. In summary, you need to install a new iPython kernel for your new environment. Run:

conda install -n myenv ipython
conda activate myenv
python -m ipykernel install --user --name myenv --display-name "Python (myenv)"

Then, to run Jupyter Lab in the new environment:

conda activate myenv
jupyter lab

And you should be able to select the kernel "Python (myenv)" when you open a new notebook (also in the top right of an existing notebook).