cars = ['audi', 'bmw', 'subaru', 'toyota']

for car in cars:
    if car == 'bmw':
        print(car.upper())
    else:
        print(car.title())

keywords

The keywords and and or do what you'd expect.

elif

age = 12
if age < 4:
    price = 0
elif age < 18:
    price = 25
else:
    price = 40

is vs ==

b is a            # => True, a and b refer to the same object
b == a            # => True, a's and b's objects are equal