Tarek Ziadé is the original creator of Flake8 (https://flake8.pycqa.org/en/latest/), a super popular linter that combines pep8 and PyFlakes.
Tarek has also recently created the perf8 (https://github.com/elastic/perf8), a tool for measuring your Python code performance. You can read more about the project in the article: Perf8: Performance metrics for Python.
If you’d like to see what else Tarek is up to, you can find him on Mastodon (https://framapiaf.org/@tarek.)