flake8 fixes
flake8 fixes

pingo-io/pingo-py,Ladeia/pingo-py,Vido/pingo,lamenezes/pingo-py,Vido/pingo,dyegocantu/pingo-py,Ladeia/pingo-py,garoa/pingo,lamenezes/pingo-py,pingo-io/pingo-py,dyegocantu/pingo-py,garoa/pingo,tylerdave/pingo-py,tylerdave/pingo-py