Object Oriented Python

• Everything in python is object which is instance of some class
• Lets define a class

class Student:
    pass

• Now to create an object which is also referred as instantiation

student = Student()

• Refer Here for the Jupyter notebook added

• We might want to create classes which have attributes and behaviour

  • We need to understand two important terminologies
    • Class
    • Object
  • When we define the attributes in python classes we can define the attributes at
    • Class attribute
    • object attributes or instance attribute
  • When we define methods in python we have
    • class methods
    • object methods (instance methods)

• Class level attributes: Attributes at class level and are common across all the objects of the class

• Instance level attributes

• Initialization:

  • If we want to assign object attributes at creation time, we need to use python’s special methods __init__
  • Refer Here for the creation of instance attributes

• Exercise: Create a car class and create two object ‘MarutiSwift’ and ‘Hyundai Creta’

• Write print statement which prints the attribute with its memory location

• Refer Here for the solution

• Lets Try to Create a classes for Movies Ratings

  • classes: Movie
  • Rating:
  • Review

• Refer Here for the class structures created

• Exercise: Using the Classes defined try to create an object representation for the Avengers movie Refer Here

• Refer Here for the implementation