Python 3 I. Overview This checkpoint is intended to help you practice the syntax

Question

  

Python 3

I. Overview This checkpoint is intended to help you practice the syntax of abstract base classes, and use these principles to have lists of related objects. For this checkpoint, you will create an abstract base class for a shape, and two derived classes for specific shapes. The base class will have an abstract method, get area that is overriden by each derived class. You will then create a certain number of new shapes, as specified by the user, put them in the same array, and loop through and display the area of each

Explanation / Answer

import abc
import math

class Shape():
   __metaclass__ = abc.ABCMeta
   def __init__(self):
       self.name = ''
       return
   def display(self):
       print(self.name + ' - ' + str(self.get_area()))
   def get_area(self):
       return

class Circle(Shape):
   def __init__(self):
       self.name = 'Circle'
       self.radius = 0.0
   def get_area(self):
       return math.pi * self.radius * self.radius

class Rectangle(Shape):
   def __init__(self):
       self.name = 'Rectangle'
       self.length = 0.0
       self.width = 0.0
   def get_area(self):
       return self.length * self.width

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.