[Python] Use Python 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

class PatriotsBall(Football):

def inflate(self, psi):

    """ overwrite default method """

    self.pressure = self.pressure - psi

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