Lines Matching full:verbosity

231    parser.add_argument("--verbosity", help="increase output verbosity")
233    if args.verbosity:
234        print("verbosity turned on")
240    $ python3 prog.py --verbosity 1
241    verbosity turned on
244    usage: prog.py [-h] [--verbosity VERBOSITY]
248      --verbosity VERBOSITY
249                            increase output verbosity
250    $ python3 prog.py --verbosity
251    usage: prog.py [-h] [--verbosity VERBOSITY]
252    prog.py: error: argument --verbosity: expected one argument
256 * The program is written so as to display something when ``--verbosity`` is
261   used, the relevant variable, in this case ``args.verbosity``, is
267 * When using the ``--verbosity`` option, one must also specify some value,
270 The above example accepts arbitrary integer values for ``--verbosity``, but for
276    parser.add_argument("--verbose", help="increase output verbosity",
280        print("verbosity turned on")
287    verbosity turned on
296      --verbose   increase output verbosity
322    parser.add_argument("-v", "--verbose", help="increase output verbosity",
326        print("verbosity turned on")
333    verbosity turned on
339      -v, --verbose  increase output verbosity
354                        help="increase output verbosity")
381 multiple verbosity values, and actually get to use them::
387    parser.add_argument("-v", "--verbosity", type=int,
388                        help="increase output verbosity")
391    if args.verbosity == 2:
393    elif args.verbosity == 1:
405    usage: prog.py [-h] [-v VERBOSITY] square
406    prog.py: error: argument -v/--verbosity: expected one argument
415 Let's fix it by restricting the values the ``--verbosity`` option can accept::
421    parser.add_argument("-v", "--verbosity", type=int, choices=[0, 1, 2],
422                        help="increase output verbosity")
425    if args.verbosity == 2:
427    elif args.verbosity == 1:
438    prog.py: error: argument -v/--verbosity: invalid choice: 3 (choose from 0, 1, 2)
447      -v {0,1,2}, --verbosity {0,1,2}
448                            increase output verbosity
453 Now, let's use a different approach of playing with verbosity, which is pretty
455 verbosity argument (check the output of ``python --help``)::
461    parser.add_argument("-v", "--verbosity", action="count",
462                        help="increase output verbosity")
465    if args.verbosity == 2:
467    elif args.verbosity == 1:
484    $ python3 prog.py 4 --verbosity --verbosity
497      -v, --verbosity  increase output verbosity
528    parser.add_argument("-v", "--verbosity", action="count",
529                        help="increase output verbosity")
534    if args.verbosity >= 2:
536    elif args.verbosity >= 1:
552        if args.verbosity >= 2:
567    parser.add_argument("-v", "--verbosity", action="count", default=0,
568                        help="increase output verbosity")
571    if args.verbosity >= 2:
573    elif args.verbosity >= 1:
608    parser.add_argument("-v", "--verbosity", action="count", default=0)
611    if args.verbosity >= 2:
613    elif args.verbosity >= 1:
634      -v, --verbosity
639 Notice that so far we've been using verbosity level to *change* the text
640 that gets displayed. The following example instead uses verbosity level
647    parser.add_argument("-v", "--verbosity", action="count", default=0)
650    if args.verbosity >= 2:
652    if args.verbosity >= 1: