#!/usr/bin/env python
"""Subcommands with main program arguments
In this test case, we test a parser that has its own arguments as well as
multiple subcommands, for which individual help sections should be generated.
"""
import argparse
import sys
foo_help = "Run the ``foo`` subprogram"
foo_desc = """This is a long description of what a ``foo`` program might do.
It spans multiple lines, so that we can test things reasonably.
"""
bar_help = "Take output from ``foo`` subprogram and run it through the ``bar`` subprogram"
bar_desc = """This is the long description for the ``bar`` subprogram."""
[docs]def main(argv=sys.argv[1:]):
parser = argparse.ArgumentParser()
parser.add_argument("mainarg1")
parser.add_argument("mainarg2",help="main positional argument #2")
subparsers = parser.add_subparsers(title="subcommands",
description="choose one of the following:",
dest="program")
fooparser = subparsers.add_parser("foo",
help=foo_help,
description=foo_desc)
barparser = subparsers.add_parser("bar",
help=bar_help,
description=bar_desc)
fooparser.add_argument("fooarg1",help="foo argument 1")
fooparser.add_argument("fooarg2",help="foo argument 2")
fooparser.add_argument("-f",help="short foo argument",type=str)
fooparser.add_argument("--fookwarg",help="foo keyword argument",type=str)
fooparser.add_argument("-v","--verbose",help="foo verbosely")
barparser.add_argument("bararg",help="bar argument")
barparser.add_argument("--choice",choices=("option1","option2","option3"),
help="A keyword that requries a choice")
bgroup = barparser.add_argument_group(title="An argument group",
description="A special goup of arguments in the ``bar`` subparser")
bgroup.add_argument("--b1")
bgroup.add_argument("--b2",help="Argument 2 has help (bar argument 1 did not have help)")
bgroup.add_argument("-k",nargs=2,metavar="N",help="Some other argument")
args = parser.parse_args(argv)
if __name__ == "__main__":
main()