[flake8] Fix E113 unexpected indentation
[flake8] Fix E125 continuation line with same indent as next logical line
[flake8] Fix E129 visually indented line with same indent as next logical line
[flake8] Fix E202 whitespace before ')'
[flake8] Fix E231 missing whitespace after ','
[flake8] Fix E711 comparison to None should be 'if cond is None:'
[flake8] Fix E502 the backslash is redundant between brackets
[flake8] Fix E261 at least two spaces before inline comment