This is a short script that shows how to use if as well as elif and else so that Python can make decisions based on the input it is given.

people = 100
cars = 30
buses = 15

if cars > people:
    print "We should take the cars."
elif cars < people:
    print "We should not take the cars."
else:
    print "We can't decide."


if buses > cars:
    print "That's too many buses."
elif buses < cars:
    print "Maybe we could take the buses."
else:
    print "We still can't decide"


if people > buses:
    print "Alright, let's just take the buses."
else:
    print "Fine. Let's stay home then."