Python id() Function

In this tutorial, you will all about the Python id() function to find the unique id for the specified objects. id function in Python is the best built-in function to get the id of a specified object( string, list, number, set, etc). In the previous tutorial, we have seen the Python hex function to convert numbers to hexadecimal.

Python id() function Introduction

id() function is a built-in function that is used to find the unique id of any specified object. All the objects have their own unique id. id is assigned to an object when the object is created. The id of the object will be different each time you run the program.

Syntax

The syntax of id() function is:-

id(object)

Parameter

The Python id() function takes one parameter, that is Python object like a string, list, tuple, set, dictionary, etc.

Return Value

The return value of the id function in Python is the unique id of the object.

Python id() Example

In this example section, I created multiple variables and after that tried to get unique id of all that variables using the id() function.

Example: getting the id of variables

#id of the number
num = 120
print(id(num))

#id of the string
mystring = 'Programming Funda'
print(id(mystring))


#id of the set
my_set = {1, 2, 3, 4}
print(id(my_set))

#id of the tuple
my_tuple = ('Python', 'Java', 'JavaScript')
print(id(my_tuple))

#id of the list
my_list = [1, 2, 3, 4, 5, 6]
print(id(my_list))


employee = {
    "employee_name": "Vishvajit",
    "employee_age": 25,
    "employee_salary": 23000,
    "employee_designation": "Dev"
}

# getting the id of that dictionary employee
print(id(employee))

Output

140706168055168
2254935321136
2254936994528
2254936646464
2254936963328
1521805605568

Conclusion

In this tutorial, you have learned the id() function to find the id of the object along with an example. id() function comes under Python built-in functions which means you don’t need to download it by using the pip command. If this article helps you, please share and keep visiting for further Python built-in functions tutorials which are listed below.

Python built-in functions

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