test.args.4.for.server.0.py

import argparse
# https://pymotw.com/2/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', dest='constant_value',
                    const='value-to-store',
                    help='Store a constant value')

parser.add_argument('-t', action='store_true', default=False,
                    dest='boolean_switch',
                    help='Set a switch to true')
parser.add_argument('-f', action='store_false', default=False,
                    dest='boolean_switch',
                    help='Set a switch to false')

parser.add_argument('-a', action='append', dest='collection',
                    default=[],
                    help='Add repeated values to a list',
                    )
parser.add_argument('-u', action='append', dest='collection_urls',
                    default=[],
                    help='Add repeated values to a list',
                    )

parser.add_argument('-p', action='append', dest='collection_files',
                    default=[],
                    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('simple_value     =', results.simple_value)
myurl = results.simple_value
print(type(myurl))


print('constant_value   =', results.constant_value)
print('boolean_switch   =', results.boolean_switch)
print('collection       =', results.collection)

for gg in results.collection_urls:
    print("URL",gg)
    pass

print('const_collection =', results.const_collection)