### Problem When I'm developing, I'll often get flake8 errors, e.g.: ``` flake8...................................................................Failed - hook id: flake8 - exit code: 1 lib/matplotlib/tests/test_colors.py:597:49: E231 missing whitespace after ',' lib/matplotlib/tests/test_colors.py:602:1: E302 expected 2 blank lines, found 1 ``` It's quite annoying to have to go through and manually fix these, when it looks like they could easily be automatically fixed. ### Proposed solution _No response_