#!/usr/bin/python from array import array import serial, sys i = 3 ser = serial.Serial('/dev/ttyACM0', 9600) a=array('i') a.append(int(sys.argv[1])) a.append(int(sys.argv[2])) a.append(int(sys.argv[3])) for i in range(0, 3): if not all(0 <= argv <= 180 for argv in sys.argv): sys.exit(0) else: print(a[i])