message: python: dnn example
  remove redundant lines
  add single character option for arguments
diff: @@ -56,18 +56,15 @@ if __name__ == "__main__":
  parser = argparse.ArgumentParser(
  description='Script to run MobileNet-SSD object detection network ')
  - parser.add_argument("--prototxt", default="MobileNetSSD_deploy.prototxt",
  + parser.add_argument('-p', "--prototxt", default="MobileNetSSD_deploy.prototxt",
  help='Path to text network file: '
  'MobileNetSSD_deploy.prototxt')
  - parser.add_argument("--weights", default="MobileNetSSD_deploy.caffemodel",
  + parser.add_argument('-w', "--weights", default="MobileNetSSD_deploy.caffemodel",
  help='Path to weights: '
  'MobileNetSSD_deploy.caffemodel')
  - parser.add_argument("--ip", help='Ip address to use network backend')
  + parser.add_argument('-i', "--ip", help='Ip address to use network backend')
  args = parser.parse_args()
  - if args.prototxt:
  - print(args.prototxt)
  - #net = cv.dnn.readNet(args.prototxt, args.weights)
  - net = cv.dnn.readNet('MobileNetSSD_deploy.prototxt', 'MobileNetSSD_deploy.caffemodel')
  +
  try:
  net = cv.dnn.readNet(args.prototxt, args.weights)
  except:
  