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

What are the two techniques of Machine Learning?

Two types of learning supervised and unsuperwise learning.
Janvi

which is beat among Rpa python Oracle In present situation , suggestion 

I would suggest you go for Python, as its one of the dominant language, you can do almost everything with Python. It's easy to learn and implement. I see lots of Job opportunity too.
K
Why does â??5/2 = 2â?? and not 2.5 in Python?
Due to dynamic Typing. use Numpy , and declare data type , you will get desired result
Srikanth
0 0
6
I completed my graduation in 2017, now working as an HR Executive in a Consultancy. I want to move to IT Sector. Which course is best for me to learn and get success in life? Please Suggest me
Dear Kumar, My suggestion is to - become good in one programming language - preferably Java and one O/S preferably Linux. Be aware of Open Source systems. Try to identify the opportunities in your existing...
Kumar

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

Ask a Question

Related Lessons

10 Best Python IDEs
Python is a very popular programming language. It's open source and used today as scripting language, web development, mobile and desktop in many areas thanks to the endless modules options it has While...

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...

File Handling in Python - Basic Concept
File (Flat) Handling in Python Types of files in python: 1: Text file: Stores data in the form of characters. Customarily used to store text/string data. 2: Binary file: Stores data in the form of bytes....

A python program using the datetime module
Task : To write a program in Python to find out, in any given year, Friday the 13th dates i.e 13th day of a month which was a Friday. ...

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...

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