* Tighten up psf/black and flake8
* Fix some tests
* Fix some E741
* Fix some E741
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Create soln.py
Solution for problem 30 of Euler Project
* Update soln.py
* update soln.py
modified the changes
* if __name__ == "__main__":
Co-authored-by: Christian Clauss <cclauss@me.com>