python argument parser default value
parser.add_argument("-v", "--verbose", action="store_true",
default="your default value", help="verbose output")python argument parser default value
parser.add_argument("-v", "--verbose", action="store_true",
default="your default value", help="verbose output")python argparser flags
parser.add_argument("-v", "--verbose", action="store_true",
help="verbose output")use argparse to call function and use argument in function
# Parse the subcommand argument first
parser = ArgumentParser(add_help=False)
parser.add_argument("function",
nargs="?",
choices=['function1', 'function2', 'function2'],
)
parser.add_argument('--help', action='store_true')
args, sub_args = parser.parse_known_args(['--help'])
# Manually handle help
if args.help:
# If no subcommand was specified, give general help
if args.function is None:
print parser.format_help()
sys.exit(1)
# Otherwise pass the help option on to the subcommand
sub_args.append('--help')
# Manually handle the default for "function"
function = "function1" if args.function is None else args.function
# Parse the remaining args as per the selected subcommand
parser = ArgumentParser(prog="%s %s" % (os.path.basename(sys.argv[0]), function))
if function == "function1":
parser.add_argument('-a','--a')
parser.add_argument('-b','--b')
parser.add_argument('-c','--c')
args = parser.parse_args(sub_args)
function1(args.a, args.b, args.c)
elif function == "function2":
...
elif function == "function3":
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