How to fix ModuleNotFoundError: No module named 'bs4'

ModuleNotFoundError: No module named 'bs4'
Recommended: Install via pip into your active environment.
python -m pip install beautifulsoup4

Verification

Command
python -c "import bs4; print(bs4.__version__)"
Expected output
Success! bs4 version x.y.z (e.g., 2.4.0)