python - Don't show long options twice in print_help() from argparse -

i have following code:

parser = argparse.argumentparser(description='postfix queue administration tool',         prog='pqa',         usage='%(prog)s [-h] [-v,--version]') parser.add_argument('-l', '--list', action='store_true',         help='shows full overview of queues') parser.add_argument('-q', '--queue', action='store', metavar='<queue>', dest='queue',         help='show information <queue>') parser.add_argument('-d', '--domain', action='store', metavar='<domain>', dest='domain',         help='show information specific <domain>') parser.add_argument('-v', '--version', action='version', version='%(prog)s 0.1') args = parser.parse_args() 

which gives me output this:

%./pqa                                                                                                                         usage: pqa [-h] [-v,--version]  postfix queue administration tool  optional arguments:   -h, --help            show message , exit   -l, --list            shows full overview of queues   -q <queue>, --queue <queue>                         show information <queue>   -d <domain>, --domain <domain>                         show information specific <domain>   -v, --version         show program's version number , exit 

i know how can 'group' commands have 2 versions (ie. long options) each show metavar.

this aesthetic issue on side, still fix this. have been reading manuals , texts on internet, either information isn't there or totally missing here :)

another solution, using custom descriptions

if set metavar='', line becomes:

-q , --queue          show information <queue> 

---

here suppress regular lines, , replace them description lines group:

parser = argparse.argumentparser(description='postfix queue administration tool',         prog='pqa',         usage='%(prog)s [-h] [-v,--version]',         formatter_class=argparse.rawdescriptionhelpformatter,         ) parser.add_argument('-l', '--list', action='store_true',         help='shows full overview of queues') g = parser.add_argument_group(title='information options',         description='''-q, --queue <queue>     show information <queue> -d, --domain <domain>   show information specific <domain>''') g.add_argument('-q', '--queue', action='store', metavar='', dest='queue',         help=argparse.suppress) g.add_argument('-d', '--domain', action='store', metavar='<domain>', dest='domain',         help=argparse.suppress) parser.add_argument('-v', '--version', action='version', version='%(prog)s 0.1') parser.print_help() 

---

usage: pqa [-h] [-v,--version]  postfix queue administration tool  optional arguments:   -h, --help     show message , exit   -l, --list     shows full overview of queues   -v, --version  show program's version number , exit  information options:   -q, --queue <queue>     show information <queue>   -d, --domain <domain>   show information specific <domain> 

or put information in regular description. using custom usage line.