Object oriented classes work much like classes in other languages. Learn how to create them and use them, learn the difference between class variables and instance variables, creating class methods, and learn how to create classes that inherit from other classes.,

#ball.py
class Ball:

def __init__(self, radius, color, weight):

 self.radius = radius

 self.color = color

 self.weight = weight

"""
from ball import Ball
b = Ball(22, 'red', 10)
"""
class Football:

"""A standard, regulation NFL ball"""

def __init__(self, diameter, color, pressure):

 self.diameter = diameter

 self.color = color

 self.pressure = pressure

def inflate(self, psi):

 self.pressure = self.pressure + psi

def deflate(self, psi):

 self.pressure = self.pressure - psi

inherit Football

class PatriotsBall(Football):

def inflate(self, psi):

 """ overwrite default method """

 self.pressure = self.pressure - psi

"""
from ball import PatriotsBall
pb = PatriotsBall(22, 'blue', 10)
"""