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

I want to learn Python but I dont know which tool is better for the future? and i want to get a job in less time. I am a fresher, 2017 passed out.

Congratulations for passing out in 2017. Learning Python programming language will help you get a job in less time provided you are good in general aptitude,computer science fundamentals. You need to become...
Srinu
Is there any online Python coaching classes available?
Yes it is. You can contact me and visit my profile for Online classes
Abhishek
0 0
5
What are good books on advanced topics in Python?
Here are some good books on advanced topics in Python: 1. **"Fluent Python" by Luciano Ramalho**: Focuses on Python’s advanced features and best practices.2. **"Effective Python: 90 Specific Ways...
Vinodha
0 0
5
While teaching IT Student (MCA / BCA / BTech), I found most of the students are not having good programming skills but they are still running behind to learn .NET / PHP / PYTHON / ANDROID / JAVA. Why is it so? What we should do better to improve a sound programming skills among most of IT Students?
on college days they r learning c,c++ and following faculties are also giving a road map of "programming means" thease languages only , even these are the languages are familier , where you justify them...
Amit 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

Machine Learning With Python
1. Course description: Machine Learning with Python has been designed for the provision of having strong hold in creating Machine learning algorithms with the base of Python. This has been preferred as...
J

How to know if an object is iterable?
An object in python is said to be an iterable if it obeys one of the following two rules:- 1. Object must consist of __getitem__ method 2. Object must consist of __iter__ method. String objects generally...
S

Sudheer S

0 0
0

JAVA - Object Cloning
JAVA - Object Cloning Is the way of creating the same copy of object without calling the class constructor. It means we can make any class object multiple times without calling its default constructor....

Black in Python
When you are upturn in your career from beginner to experienced in programming world, your team will start looking at ‘how you are writing?’ Here the responsibility piling up. Okay,...

Benefits of Design Patterns in Application Development
Application developments is a tedious job. Programmers write code and test it again and again to make sure their software works fine. So designing complex software is a hard nut to crack. Skilled programmers...

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