import sys
import argparse
from gooey import Gooey


sys.argv.extend(['1', '2', '3', '4', '--sum'])

# @Gooey
def main():
  parser = argparse.ArgumentParser(description='Process some integers.')
  parser.add_argument('integers', metavar='N', type=int, nargs="+",
                     help='an integer for the accumulator')
  parser.add_argument('--sum', dest='accumulate', action='store_const',
                     const=sum, default=max,
                     help='sum the integers (default: find the max)')

  args = parser.parse_args()
  print args.accumulate(args.integers)


if __name__ == '__main__':
  main()