PEP-8 compliance fixes
PEP-8 compliance fixes

enketo/enketo-express,OpenClinica/enketo-express-oc,OpenClinica/enketo-express-oc,onaio/enketo-express,onaio/enketo-express,enketo/enketo-express,kobotoolbox/enketo-express,onaio/enketo-express,enketo/enketo-express,OpenClinica/enketo-express-oc,kobotoolbox/enketo-express,kobotoolbox/enketo-express,kobotoolbox/enketo-express