Run software on Lego NXT From Python 2.7! USB Only!

run_uploaded_software.py

# usage: python run_uploaded_software.py ProgramName 1/0
# 0 - close running program and run ProgramName
# 1 - close running program, wait for ProgramName to finish, run previous program.
# ProgramName - program name, uploaded on NXT
# Requires pyusb, setuptools, setuptools-scm, nxt-python. You can install them from attachement below.
import nxt.locator
import sys
import time
b = nxt.locator.find_one_brick()
if (str(sys.argv[2]) == "0"):
	try:
		b.get_current_program_name()
		print("Program is running, stopping it..")
		b.stop_program()
		pass
	except Exception as e:
		if(e=="No active program"):
			print("No active program")
		pass
	b.start_program(str(sys.argv[1])+".rxe")
	print("Program started: "+str(sys.argv[1])+".rxe")
elif(str(sys.argv[2]) == "1"):
	prevName=""
	print("Return to previous program is enabled")
	try:
		prevName=b.get_current_program_name()
		print("Program is running, stopping it..")
		b.stop_program()
		time.sleep(2)
		pass
	except Exception as e:
		if(e=="No active program"):
			print("No active program")
		pass
	b.start_program(str(sys.argv[1])+".rxe") 
	print("Program started: "+str(sys.argv[1])+".rxe")
	while True:
		if prevName == "":
			print("No previous program was found,exiting.")
			break;
			pass
		try:
			b.get_current_program_name()
			pass
		except Exception as e:
			print(e)
			time.sleep(1)
			print("Program "+str(sys.argv[1])+".rxe is stopped. Returining to previous..")
			b.start_program(prevName)
			print("Started previous program: "+prevName)
			try:
					while(b.get_current_program_name() != prevName):
						b.start_program(prevName)
						time.sleep(1)
					pass
			except Exception as e:
				time.sleep(2)
				b.start_program(prevName)
				print("Exiting..")
				break;
				pass
			pass
	pass