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Groups > comp.lang.python > #34310
| References | <20121205084830.74e842119d151781db385406@lavabit.com> |
|---|---|
| From | Ian Kelly <ian.g.kelly@gmail.com> |
| Date | 2012-12-05 11:31 -0700 |
| Subject | Re: How does one make argparse print usage when no options are provided on the command line? |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.517.1354732351.29569.python-list@python.org> (permalink) |
On Wed, Dec 5, 2012 at 9:48 AM, rh <richard_hubbe11@lavabit.com> wrote:
> I have argparse working with one exception. I wanted the program to print out
> usage when no command line options are given. But I only came across
> other examples where people didn't use argparse but instead printed out
> a separate usage statement. So they used argparse for everything but the
> case where no command line args are given.
if len(sys.argv) <= 1:
parser.print_usage()
sys.exit(1)
else:
args = parser.parse_args()
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Re: How does one make argparse print usage when no options are provided on the command line? Ian Kelly <ian.g.kelly@gmail.com> - 2012-12-05 11:31 -0700
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