Open output file differently to work with `boto3`
Open output file differently to work with `boto3`

Another kludge to cope with https://code.djangoproject.com/ticket/13809

kobotoolbox/kpi,onaio/kpi,onaio/kpi,onaio/kpi,kobotoolbox/kpi,kobotoolbox/kpi,kobotoolbox/kpi,onaio/kpi,kobotoolbox/kpi