Python Object Oriented - Class Inheritance

•  #!/usr/bin/python
  
  class Parent: # define parent class
  parentAttr = 100
  def __init__(self):
     print "Calling parent constructor"
  
  def parentMethod(self):
     print 'Calling parent method'
  
  def setAttr(self, attr):
     Parent.parentAttr = attr
  
  def getAttr(self):
     print "Parent attribute :", Parent.parentAttr
  
  class Child(Parent): # define child class
  def __init__(self):
     print "Calling child constructor"
  
  def childMethod(self):
     print 'Calling child method'
  c = Child() # instance of child
  c.childMethod() # child calls its method
  c.parentMethod() # calls parent's method
  c.setAttr(200) # again call parent's method
  c.getAttr() # again call parent's method

• Output

  Calling child constructor
  Calling child method
  Calling parent method
  Parent attribute : 200
• Similar way you can drive a class from multiple parent classes as follows:
  
  class A: # define your class A
  .....
  
  class B: # define your calss B
  .....
  
  class C(A, B): # subclass of A and B
  .....