Exit and CTRL+C raise exception, which can also be caught.
SystemExit is raised by exit()

while(True):
	try:
		exit()
	except:
		pass

Same goes for this code, which causes  KeyboardInterrupt exception. Be careful running the code below, it will be very hard to stop it

while(True):
	try:
		a=input("")
	except:
		print("CTRL+C pressed")