* Replace bandit, flake8, isort, and pyupgrade with ruff * Comment on ruff rules * updating DIRECTORY.md --------- Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Create eulersTotient.py * Rename eulersTotient.py to eulers_totient.py * Update eulers_totient.py