What is id in Python

The id() function returns identity (unique integer) of an object.

Syntax: id(object)

The identity of the object is an integer that is unique for the given object and remains constant during its lifetime.

# id() function

class pet:
	x = 10

cat = pet()
print('id of cat =', id(cat))

print('id of 5 =', id(10))

print('id of a =', id('a'))

Output:

id of cat = 2555911490960
id of 5 = 140733430699968
id of 5 = 2555909586416

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Python