I am using flake8 (from tox or from Makefile). It basically gave me warnings about whitespaces and I got my codebase clean, so I though.
I was then surprised that Pycharm IDE displayed me a ton of style warnings, which flake8 hadn't complained about yet. These are naming styles and more interesting things like class member initialization outside of __init__. Pycharm is also using only Pep8 checks, to my understanding.
How can I get flake8 to be extremely strict? I tried strict=1 in the tox.ini, or ignore=, but nothing got me more than whitespace warnings.