Python Class

 1 class Car:
 2    'Common base class for all cars'
 3    carCount = 0
 4 
 5    def __init__(self, name , model):
 6       self.name = name
 7       self.model = model
 8       Car.carCount += 1
 9    
10    def printCarCount(self):
11      print "Total Car Counut in Town %d" % Car.carCount
12 
13    def displayCarDeatils(self):
14       print "Name : ", self.name,  ", Model: ", self.model
15       
16 prius = Car('Prius','Toyota')
17 vitz = Car('Vitz','Toyota')
18 leaf = Car('Leaf','Nissan')
19 prius.displayCarDeatils()
20 prius.printCarCount()

The 'class' statement creates a new class.

• The class has a documentation string, which can be accessed via ClassName.__doc__


• The class_suite consists of all the component statements defining class members, data attributes and functions.

Creating Instance Objects

vitz = Car('Vitz','Toyota')

Accessing Attributes / methods of Instance

vitz .displayCarDeatils()

Destroying Objects (Garbage Collection)
del old_object

 1 #!/usr/bin/python
 2 
 3 class car:        # define parent class
 4    def display(self):
 5       print 'I am car'
 6 
 7 class SportCar(Car): # define child class
 8    def display(self):
 9       print 'I am sport car'
10 
11 myCar = SportCar()          # instance of child
12 myCar.myMethodx()         # child calls overridden method