$```$

limousine$.$py

l class $...$

Tester.py

from limousine import Limousine

def main$()$ :

aLimo $=$ Limousine$()$

aLimo.setLicensePlateNumber$("$W$00$H$00")$

printInfo$($aLimo$,"$W$00$H$00")$

bigCar $=$ Limousine$()$

bigCar.setLicensePlateNumber$("$PYTHON$")$

printInfo$($bigCar$,$ "PYTHON"$)$

def printInfo$($car$,$ plates$)$ :

print$($car$.$getDescription$())$

print$("$Expected: A car with license plate", plates$)$

print$("$Tires:$",$ car.getNumberOfTires$())$

print$("$Expected: $8")$

main$()$

$```$

car.py

$```$

## This module defines classes that model vehicles.

#

## A generic vehicle superclass.

#

class Vehicle :

## Constructs a vehicle object with a given number of tires.

#

def $\_\_$init$\_\_($self$,$ numberOfTires$)$:

s$$lf$.\_$n$$mberOfTires $=$ numberOfTires

## Gets the number of tires on the vehicle.

# @return number of tires

def getNumberOfTires$($self$)$:

## Changes the number of tires on the vehicle.

# @param newValue the number of tires

def setNumberOfTires$($self$,$ newValue$)$ :

self.$\_$numberOfTires $=$ newValue

## Gets a description of the vehicle.

# @return a string containing the description

def getDescription$($self$)$:

return "A vehicle with $"+$ self.$\_$numberOfTires $+"$ tires"

## A specific type of vehicle $-$ car.

#

class Car$($Vehicle$)$ :

## Constructs a car object.

#

def $\_\_$init$\_\_($self$)$ :

#$-$ Call the superclass constructor to define its instance variables.

super$().\_\_$init$\_\_(4)$

# This instance variable is set by the subclass.

self.$\_$plateNumber $="??????"$

## Sets the license plate number of the car.

# @param newValue a string containing the number

def setLicensePlateNumber$($self$,$ newValue$)$ :

self.$\_$plateNumber $=$ newValue

## Gets a description of the car

# @return a string containing the description

#

def getDescription$($self$)$ :

return "A car with license plate $"+$ self. plateNumber

$```$