Identity operators in Python

 Python Identity operators

Identity operators are used to compare objects.

In Python, if two variables has same value then they will share the same memory location (id).

To check the id (memory address of object), which is unique for all objects in Python, use id() function.

And in Python everything is an object.

Python Identity operators.

Operator	Operation
is	Returns True if both the variables points to same object
is not	Returns True if both the variables points to different objects

Python 'is' and 'is not' identity operator

In Python, if the variables have same value then they will have same id. 

Yields True on, performing 'is' operation on two identical objects. And performing 'is not' operation on two identical objects yields False.

Program

>>> a = 1

>>> b = 1

>>> z = a

>>> a is z

True

>>> a is b

True

>>> z is b

True

>>> id(a) == id(b) and id(a) == id(z) and id(b) ==id(z)

True

>>> A = 2

>>> A is not a

True

Conclusion

Identity operators are used to compare objects.

Returns True if both the objects are the same, while working with 'is' operator.

And '==' operator returns True if value of both the objects are same.

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