How to fix ModuleNotFoundError: No module named 'dnspython'

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

Verification

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