The id() function returns the unique id, which shows the identity of the object and it is an integer always. This identity will be unique for the object and constant throughout its lifetime.
id(object) #Where object can be int, float, str, list, dict, tuple, etc.
Takes only one parameter. An object may be in a type int, float, str, list, dict, tuple, etc.
| Parameter | Description | Required / Optional |
|---|---|---|
| object | The object whose identity needs to be returned. | Required |
The id() method also returns the identity of a variable or object. All variables and literal values are objects, so they all have different id() values.
| Input | Return Value |
|---|---|
| variable or literal | a unique integer number. |
class Foo:
b = 5
dummyFoo = Foo()
print('id of dummyFoo =',id(dummyFoo))
Output:
id of dummyFoo = 140343867415240
print("Id of 10 is: ", id(10))
print("Id of 10.5 is: ", id(10.5))
print("Id of 'Hello World' is: ", id('Hello World'))
print("Id of list is: ", id([1, 2, 3, 4, 5]))
Output:
Id of 10 is: 8791113061 Id of 10.5 is: 3521776 Id of 'Hello World' is: 60430408 Id of list is: 5466244
num = 10
print("Id of num is: ", id(num))
print("Id of 10 is: ",id(10))
Output:
Id of i is: 8791113061696 Id of 10 is: 8791113061696
