Fix PEP8: W292 no newline at end of file
Fix PEP8: W293 blank line contains whitespace
Fix PEP8: E301 expected 1 blank line, found 0
Fix PEP8: E302 expected 2 blank lines, found 1
Fix PEP8: E303 too many blank lines
Fix PEP8: W391 blank line at end of file
Lower PEP8 threshold to 200 violations