Use an ArgumentParser argument as a default value of another argument

Question

I would like to set an ArgumentParser argument value as the default value of another argument in the same parser.

Desired behavior:

parser = ArgumentParser(formatter_class=ArgumentDefaultsHelpFormater)

parser.add_argument('-p', '--pin_file_path', help = "the directory of the given pin file", default=os.getcwd())
parser.add_argument('-o', '--other', help="", default=**pin_file_path!**)

Answer 1

parse_known_args parse the argument and send it to another argument.

pin_file_path= None
parser = ArgumentParser(formatter_class=ArgumentDefaultsHelpFormater)
parser.add_argument('-p', '--pin_file_path', help = "the directory of the given pin file", default = os.getcwd())
args, remaining = parser.parse_known_args()
parser.add_argument('--option2', default=args.pin_file_path)
args = parser.parse_args()