try this. I misunderstood what you wanted to do... there is a function which checks if you are in the background. You may need to play with the first sleep to ensure you are in the bg. or have a loop that sleeps while not in background, then second that sleeps while it is..
import console,time
#launch you app
time.sleep(1)
while console.is_in_background():
time.sleep(1)
#launch your app
time.sleep(1)
while console.is_in_background():
time.sleep(1)