5. Constructing Python – Classes and Methods

Activity 14: Creating Classes and Inheriting from a Parent Class

Solution:

1. Firstly, define the parent class, Polygon. We add an init method that allows the user to specify the lengths of the sides when creating the polygon:

   class Polygon():
       """A class to capture common utilities for dealing with shapes"""
       def __init__(self, side_lengths):
           self.side_lengths = side_lengths
           
       def __str__(self):
           return 'Polygon with %s sides' % self.num_sides

2. Add two properties to the Polygon class – one that computes the number of sides of the polygon, and another that returns the perimeter:

   class Polygon():
       """A class to capture common utilities...