On 12.12.2017 16:56, Paolo Bonzini wrote: > On 11/12/2017 12:25, Stefan Raspl wrote: >> ) >> - (options, _) = optparser.parse_args(sys.argv) >> + options, ukn = optparser.parse_args(sys.argv) >> + if len(ukn) != 1: >> + sys.exit('Error: Unknown argument(s): ' + ', '.join(ukn[-2:])) > > I'm replacing this with "unkn". But, why "-2:" instead of "1:"? Yes, that needs to be a 1: indeed - not sure what I was thinking :O Ciao, Stefan