What is the 'cls' variable used for in Python classes?

Asked by Last Modified  

2 Answers

Learn Python

Follow 1
Answer

Please enter your answer

cls in Python holds the reference of the class. It is passed as the first argument to every class methods (methods with @classmethod decorator) by Python itself. class MyClass: @classmethod def what_is_cls(cls): print(cls) MyClass().what_is_cls() #outputs <class '__main__.MyClass'>It is important...
read more
cls in Python holds the reference of the class. It is passed as the first argument to every class methods (methods with @classmethod decorator) by Python itself. class MyClass: @classmethod def what_is_cls(cls): print(cls) MyClass().what_is_cls() #outputs <class '__main__.MyClass'>It is important to note that self and cls are not reserved keywords. They are just naming conventions in Python. read less
Comments

IT professional but interested in teaching english and hindi

cls accepts the class Person as a parameter rather than Person's object/instance. Now, we pass the method Person. printAge as an argument to the function classmethod . This converts the method to a class method so that it accepts the first parameter as a class (i.e. Person).
Comments

Related Questions

How do apprachto an unknown problem to construct itssolution? Especially when do you face any programming challenge.
First approach your teacher or tutor about problem statement and ask for solution to get it solved.. Next practise similar kind of things by using other books or google or youtube help... If you u facing any challenges...
Tanmoy Gupta
0 0
8
Why is Python so popular despite being so slow?
Most programmers nowadays focus on the readability and quality of the code to maintain and update the software easily in future. In addition to being simple and easy-to-learn, Python enables programmers...
I T Roxaana
0 0
5
Which version of Python is better for beginners?
For beginners, I recommend starting with *Python 3.x* (currently Python 3.10 or 3.11). Here's why: 1. *Latest features*: Python 3.x has the latest language features, libraries, and tools. 2. *Better...
Nayan
0 0
5
What is the best python institute
All institutes are best, but you should check with the instructor, how will teach and guide you
Dinesh
Should I go for Web Development Course Or Python?
Hey Avik! Both of them are gems in their own respect. If you look precisely and from a professionals point of view, Web development is wide/ vague term and can include any thing ranging from php, Python,...
Avik

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Why Python
Python can be used in any futuristics technology A= Analytics Data Science Artificial Intelligence(AI) Neural Network(NN) Natural Language Processing(NLP) Computer Vision(OpenCV) In Analytics...

Keywords in Python Programming Language
Keywords in Python These are the reserved words that have a special meaning and are used to define the syntax and structure of the language. We cannot use these keywords for any other purpose. As...
P

What Is the Identifier and Data Types in Python?
It is used for identification purpose like- x=10; where x is variable, and it can be store int type value in the x variable. Rules of identifier:- It can be started with underscore like:- _x=10 It...

Small ML Project on Simple Linear Regression
Here is a small Project on Simple Linear Regression

Python (Concepts and Importance)
Python is a general-purpose, interpreted, object-oriented programming language. Python was created by "G. V. Rossum" in the Netherlands in 1990. Python has become a famous programming language widely used...

Recommended Articles

Python is one of the most popular programming languages in the world. It is general-purpose, object oriented, high-level programming language used in a number of programming fields. Python is a great programming language to learn as it will introduce you to the world of programming. If you are from the technical background...

Read full article >

Business Process outsourcing (BPO) services can be considered as a kind of outsourcing which involves subletting of specific functions associated with any business to a third party service provider. BPO is usually administered as a cost-saving procedure for functions which an organization needs but does not rely upon to...

Read full article >

Applications engineering is a hot trend in the current IT market.  An applications engineer is responsible for designing and application of technology products relating to various aspects of computing. To accomplish this, he/she has to work collaboratively with the company’s manufacturing, marketing, sales, and customer...

Read full article >

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

Looking for Python Training classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you