Python exit snippet

exit.py

#!/usr/bin/env python
import time

def main():
    exit()

def exit():
    input = raw_input("Exit? Yes[y] or No[n] ")
    if input == 'y':
        print 'Exiting program...'
        time.sleep(2)
    elif input == 'n':
        main()
    elif input == 'yes':
	print 'Your answer isn\'t right \nBut it\'s okay.'
	time.sleep(2)
    elif input == 'no':
	main()
    else:
        print 'Please answer the question'
        exit()

if __name__ == '__main__':
    main()