Hi,
In the code below, which is an exercise I'm doing in class inheritance, almost
everything is working except outputting my results, which as the function
stock_count, to a csv.
stock_count is working in the code.
And I'm able to open and close the csv called cars, but the stock_count output
is not being written to the file.
Any suggestions?
There are 2 python files as the exercise is about class inheritance.
I'll paste the code from both.
cars.py
# Define a class for my car
class Car(object):
# implement the car object.
def __init__(self):
self.__colour = ''
self.__make = ''
self.__mileage = 0
self.engineSize = ''
def getColour(self):
return self.__colour
def getMake(self):
return self.__make
def getMileage(self):
return self.__mileage
def setColour(self, colour):
self.__colour = colour
def setMake(self, make):
self.__make = make
def setMileage(self, mileage):
self.__mileage = mileage
def paint(self, colour):
self.__colour = colour
return self.__colour
def move(self, distance):
self.__mileage = self.__mileage + distance
return self.__mileage
class ElectricCar(Car):
def __init__(self):
self.__numberFuelCells = 1
def getNumberFuelCells(self):
return self.__numberFuelCells
def setNumberFuelCells(self, value):
self.__numberFuelCells
class PetrolCar(Car):
def __init__(self):
self.__choke = 0
def __getChoke(self):
return self.__choke
def __setChoke(self, value):
self.__choke = value
class DieselCar(Car):
def __init__(self):
self.__dpf = 0
def __getDpf(self):
return self.__dpf
def __setDpf(self, value):
self.__dpf = value
class HybridCar(Car):
def __init__(self):
self.__regeneration = 0
def __getRegeneration(self):
return self.__regeneration
def __setRegeneration(self, value):
self.__regeneration = value
dealership.py
import csv
from car import Car, ElectricCar, PetrolCar, DieselCar, HybridCar
class Dealership(object):
def __init__(self):
self.electric_cars = []
self.petrol_cars = []
self.diesel_cars = []
self.hybrid_cars = []
def create_current_stock(self):
for i in range(6):
self.electric_cars.append(ElectricCar())
for i in range(20):
self.petrol_cars.append(PetrolCar())
for i in range(10):
self.diesel_cars.append(DieselCar())
for i in range(4):
self.hybrid_cars.append(HybridCar())
def stock_count(self):
print('petrol cars in stock ' + str(len(self.petrol_cars)))
print('electric cars in stock ' + str(len(self.electric_cars)))
print('diesel cars in stock ' + str(len(self.diesel_cars)))
print('hybrid cars in stock ' + str(len(self.hybrid_cars)))
def rent(self, car_list, amount):
if len(car_list) < amount:
print('Not enough cars in stock')
return
total = 0
while total < amount:
car_list.pop()
total = total + 1
def process_rental(self):
answer = input('would you like to rent a car? y/n')
if answer == 'y':
self.stock_count()
answer = input('what type would you like? p/e/d/h')
amount = int(input('how many would you like?'))
if answer == 'p':
self.rent(self.petrol_cars, amount)
if answer == 'd':
self.rent(self.diesel_cars, amount)
if answer == 'h':
self.rent(self.hybrid_cars, amount)
else:
self.rent(self.electric_cars, amount)
self.stock_count()
file = open("cars.csv","w")
file.write(str(self.stock_count()))
file.close()
dealership = Dealership()
dealership.create_current_stock()
proceed = 'y'
while proceed == 'y':
dealership.process_rental()
proceed = input('continue? y/n')
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