def _get_backup_name(basename):
 utctime = datetime.datetime.utcnow()
 utctime = utctime.strftime('%Y%m%d_%H%M%S')
 return '{}-{}.json'.format(basename, utctime)

def _get_backup_name ( basename ) : utctime = datetime . datetime . utcnow ( ) utctime = utctime . strftime ( '%Y%m%d_%H%M%S' ) return '{}-{}.json' . format ( basename , utctime )
return a name for a backup file based on the time .