| Tags | oop |
This is a reading presentation on Object-oriented Programming (OOP) for Python.
This is an introduction, this is just to give you a clearer perspective on OOP.
https://realpython.com/python3-object-oriented-programming/
The code below demonstrates composition and a little bit of inheritance. There is a lot more to be said about OOP.
import random
class Wheel:
def __init__(self):
self.tread = 1000
def still_ok(self):
return self.tread > 0
def use(self, speed):
self.tread -= random.random() * 10 * speed
class Vehicle:
# colour = "red"
def __init__(self, color):
self.color = color
class Helicopter(Vehicle):
pass
class Car(Vehicle):
has_fueltank = True
def __init__(self, speed=1, wheels=4):
print(f"entering constructor: {self} at address {id(self)}")
# super(Car,self).__init__(color="red")
self.position = 0
self.speed = speed
# self.wheels = [Wheel() for i in range(wheels)]
self.wheels = []
for _ in range(wheels):
self.wheels.append(Wheel())
print("exiting constructor")
def drive_forward(self):
print("driving forwards")
self.position += self.speed
for wheel in self.wheels:
wheel.use(self.speed)
def needs_service(self):
if self.position >= 10000:
return True
for wheel in self.wheels:
if not wheel.still_ok():
return True
return False