Fix PEP8 complaints from Travis CI
Fix PEP8 complaints from Travis CI

DIYBookScanner/spreads,nafraf/spreads,DIYBookScanner/spreads,miloh/spreads,adongy/spreads,adongy/spreads,nafraf/spreads,gareth8118/spreads,gareth8118/spreads,miloh/spreads,nafraf/spreads,adongy/spreads,miloh/spreads,gareth8118/spreads,DIYBookScanner/spreads