Python id() Function

Python id() function returns an identity of an object. This is an integer which is guaranteed to be unique. This function takes an argument an object and returns a unique integer number which represents identity. Two objects with non-overlapping lifetimes may have the same id() value.

Signature

Parameters

object : It is an object of which id is to be returned.

Return

It returns a unique integer number.

Let's see some examples of id() function to understand it's functionality.

Python id() Function Example 1

Output:

139963782059696 139963805666864 139963781994504 

Python id() Function Example 2

Output:

101 Mohan Object id: 140157155861392 

Python id() Function Example 3

Output:

True False False False