I had install Jupyter follow this guide: https://medium.com/@blessedmarcel1/how-to-install-jupyter-notebook-on-mac-using-homebrew-528c39fd530f
I installed the version of python 3.7.5, and then I followed the command
pip3 install beautifulsoup4
but on the notebook continue to come out the error after I wrote
from bs4 import BeautifulSoup
ModuleNotFoundError: No module named 'bs4'