Object Oriented Approach in Python

So Classes and Why do we need them

In Java it require that you write code in inside class but in Python it does not required.you can write a code inside a class but you don't have to.In Python we define a class using class keyword similar to define a function using def keyword.

Let's take an complete object-oriented example:

classess.py

students =[]

class Student:

      school_name = "Abhinaw Demo"
     
      def __init__(self,name,student_id=1):
              self.name=name
               self.student_id=student_id
                students.append(self)

      def __str__(self):
            return "Student "+ self.name

     def get_name(self):
            return self.name.capitalize()
    
      def get_school_name(self):
             return self.school_name

class NewSchoolStudent(Student):

    school_name="Inheritance Abhinaw Demo"
 
    def get_school_name(self):
          return "This is inheritance"

     def get_name(self):
         original_value= supper().get_name()
          return original_value + "New School"

abhinaw= NewSchoolStudent("Abhinaw")
print(abhinaw.get_school_name())
print(abhinaw.get_name())

This demo code includes classes,adding methods to our classes,Constructor,Instance and Class Attributes and Inheritance and Polymorphism.