# Make conda-forge the default conda installation channel.
# This makes "-c conda-forge" channel selection unnecessary.  
conda config --add channels conda-forge
conda config --set channel_priority strict

# create the environment pvlib with python3
conda create --name pvlib python=3

# activate the environment named pvlib
conda activate pvlib

# install jupyter lab, -c option used explicitly, anyway ...
conda install -c conda-forge jupyterlab 

# install matplotlib, the standard plot package
conda install -c conda-forge matplotlib

# install pvlib from conda-forge
conda install -c conda-forge pvlib-python

conda create -c conda-forge -n pvlib python=3 jupyterlab matplotlib