BJ Dierkes added the comment:

I would like to add to this regarding the following:

[QUOTE]
Why would a user want to use `help=argparse.SUPPRESS`, as  opposed to simply 
omitting the `help` parameter?  The effect would be the same as your patch.
[/QUOTE]


This actually isn't the case, if you omit the 'help' option entirely, the 
sub-parser is still listed in the {short_list}.  For example:

    import argparse

    root_parser = argparse.ArgumentParser(prog='myapp')
    root_parser.add_argument('--foo', action=CustomAction)
    sub_parsers = root_parser.add_subparsers(dest='commands', 
title='subcommands')
    sub_parser = sub_parsers.add_parser('sub-command-1', help='useless help 
txt')
    sub_parser = sub_parsers.add_parser('sub-command-2', help=argparse.SUPPRESS)
    sub_parser = sub_parsers.add_parser('sub-command-3')

    args = root_parser.parse_args()


You end up with:

$ python argtest.py --help
usage: myapp [-h] [--foo FOO] {sub-command-1,sub-command-2,sub-command-3} ...

optional arguments:
  -h, --help            show this help message and exit
  --foo FOO

subcommands:
  {sub-command-1,sub-command-2,sub-command-3}
    sub-command-1       useless help txt
    sub-command-2       ==SUPPRESS==


The 'sub-command-3' is still listed in the {sub-parsers} .... where, if I want 
to hide a sub-parser... I don't want to see it anywhere.  Would be ideal to 
have a 'hide=True' option for sub-parsers and arguments alike.  All the same 
functionality, you just wouldn't see it in '--help'.

----------
nosy: +derks

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue22848>
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