How to fix ModuleNotFoundError: No module named 'pycodestyle'

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

Verification

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