Hello...
I copied the following out of a book as I am trying to teach myself Python....Can someone please tell me how I can create an instance of an ECar and modify the battery size to 85? I have tried everything under the moon and have not been successful updating an instance of an ECar with this as because the get_range method ALWAYS shows 240 which is the default of 70 ...I have been able to create a Battery instance and change it but I don't believe I can then use this to update the ECar because it is a totally different class....Thank you for your answers...
See code below......................
I copied the following out of a book as I am trying to teach myself Python....Can someone please tell me how I can create an instance of an ECar and modify the battery size to 85? I have tried everything under the moon and have not been successful updating an instance of an ECar with this as because the get_range method ALWAYS shows 240 which is the default of 70 ...I have been able to create a Battery instance and change it but I don't believe I can then use this to update the ECar because it is a totally different class....Thank you for your answers...
See code below......................
class Car(): """A simple attempt to build a car""" def __init__(self, make, model, year): """Initialize attributes to describe a car""" self.make = make self.model = model self.year = year self.odometer = 0 def get_descriptive_name(self): """Return a neatly formatted name""" long_name = str(self.year) + ' ' + self.make + ' ' + self.model return long_name.title() def odometer_reading(self): """Read auto odometer""" print('This car has ' + str(self.odometer)+ ' miles on it.') def update_odometer(self, miles): """Updates the odometer reading with miles""" if miles > self.odometer: self.odometer = miles else: print ('You cannot roll back the odometer') def increment_odometer(self, miles): """Add miles to existing odometer reading""" self.odometer += miles class Battery(): """Model of Electric Car battery""" def __init__(self, battery_size = 70): """Initialize Battery settings""" self.battery_size = battery_size def describe_battery(self): """Describes the Electric car battery""" print('This car has a ' + str(self.battery_size) + '-kwh battery') def get_range(self): """Tell range of battery""" if self.battery_size == 70: range = 240 elif self.battery_size ==85: range = 270 else: range = 0 msg = "This car can go about " + str(range) msg += " miles on a full charge." print (msg) class ECar(Car): """Create an instance of an elecric car""" def __init__(self, make, model, year): """Initialize parent attributes""" super().__init__(make, model, year) self.battery = Battery()