import argparse

parser = argparse.ArgumentParser()

parser.add_argument(

"-s", action="store", dest="simple_value", help="store a simple value"

)

parser.add_argument(

"-c",

action="store_const",

const="value-to-store",

dest="constant_value",

help="store a const value",

)

parser.add_argument(

"-t",

action="store_true",

default=False,

dest="boolean_t",

help="set a switch to true",

)

parser.add_argument(

"-f",

action="store_false",

default=True,

dest="boolean_f",

help="set a switch to false",

)

parser.add_argument(

"-a",

action="append",

default=[],

dest="collection",

help="add repeated values to a list",

)

parser.add_argument(

"-A",

action="append_const",

dest="const_collection",

const="value-1-to-append",

default=[],

help="add different values to list",

)

parser.add_argument(

"-B",

action="append_const",

dest="const_collection",

const="value-2-to-append",

help="add different values to list",

)

parser.add_argument("--version", action="version", version="%(prog)s 1.0")

results = parser.parse_args()

print(f"simple value = {results.simple_value!r}")

print(f"const_value = {results.constant_value!r}")

print(f"boolean_t = {results.boolean_t!r}")

print(f"boolean_f = {results.boolean_f!r}")

print(f"collection = {results.collection!r}")

print(f"const_collection = {results.const_collection!r}")

# python argparse_action.py -h

# python argparse_action.py -s value

# python argparse_action.py -c

# python argparse_action.py -t

# python argparse_action.py -f

# python argparse_action.py -a one -a two -a three

# python argparse_action.py -B -A