Instance variables are variables whose values can change from object to object.

Each object gets its own copy of instance variables.

• Inside the constructor using self
• Inside an instance method using self
• Outside the class using object reference

class Employee:
    def __init__(self):
        self.eno = 100
        self.ename = 'Durga'
        self.esal = 10000

We can access instance variables using self inside the class and object reference outside the class.

We can delete them using del self.variableName or del object.variableName.