Jupyter notebook can't load installed package in conda environment

Question

I\'ve created a conda environment:

$ conda create --name py3 matplotlib scipy astropy photutils

Everything installed properly, inc

Answer 1

The default kernel is installed in the environment where the Jupyter Notebook is installed. You either need to either 1) install the notebook pacakge in the py3 environment, or 2) install the ipykernel package in the py3 environment and launch the Notebook server from the root environment, then start a new Notebook with the (now newly added) py3 kernel.