Roll back changes
pep8: insert space after comment character
pep8: W191 replace tabs with spaces
pep8: fix indentation
pep8: E302 line spacing between functions and classes
pep8: E302 space after colon
pep8: E225 space around operator
pep8: E201, E202 whitespace around [ and ]
pep8: E203 whitespace before colon
pep8: E251 unexpected whitespace around parameter equals
pep8: E303 linespacing between functions and classes
pep8: E261 whitespace after inline comment
pep8: E221 multiple spaces before operator
idiomatic python: select last item in array
pep8: fix under-indent; correct number of arguments passed to format()
Fix under-indent, correct typo in message
Do not compare variable to False
Idiomatic python: initialize variable with default value
Correct comparison with None
Split dictionary init into multiple lines; pep8 W604 replace backticks with repr()