How to fix ModuleNotFoundError: No module named 'contourpy'

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

Verification

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