Solution

class car:
    def __init__(self,brandName,gasTank,mpg):
        self.brand = brandName
        self.gasTank = gasTank
        self.gas = gasTank
        self.mpg = mpg

Classes also can have functions in them. Let’s create a function that fills up a car’s tank.

class car:
    def __init__(self,brandName,gasTank,mpg):
        self.brand = brandName
        self.gasTank = gasTank
        self.gas = gasTank
        self.mpg = mpg
    def fillUp(self):
        self.gas = self.gasTank

Let’s see how this would work. We will create a car, then set it’s gas to 5 gallons, and finally use it’s fill up function.

ourCar = car("Ford",10,20)
print(ourCar.gas)
ourCar.gas = 5
print(ourCar.gas)
ourCar.fillUp()
print("After fill up")
print(ourCar.gas)

These functions can also take arguments, so if we wanted to change our fill up function, we could have it take an argument number of gallons and fill up the car that much.