Indent comments the same as the code they belong to (PEP8 E112).
Fix PEP8 E111 (indentation is not a multiple of four).
Remove redundant backslashes within brackets (PEP8 E502).
Fixes for PEP8 E201 and E202 (whitespace before and after brackets).
Fixes for PEP8 E113 (unexpected indentation).