Python Classes and Objects | Python Language | Coding Winds

Classes and Objects

Hello guys, here we will discuss about classes and objects in python. Python is an object-oriented programming language. Almost every thing in python is an object.

A class is like an object constructor, or an overview for creating objects.

A class creates a new local namespace where all its attributes are defined. Attributes may be data or functions.

Syntax for creating class is, class:

Example,

Output

Creating an object

The procedure to make an object is similar to function call.

Person = My_class ()

Output of the program is simple, i.e., 8 and 9

We can access the attributes of objects using the object name prefix. Attributes maybe data or method.

Check the output and understand and practice.

Y’all would have, for sure, didn’t notice the unbound method, right? Check out, Bound, unbound and static methods in python.

Constructors in Python

Class functions that begin with double underscore __ are called special functions as they have special meaning.

To understand the meaning of classes we have to understand the built-in __init__ () function.

This type of function is also called constructors in Object Oriented Programming (OOP). We normally use it to initialize all the variables.

Understand the output

Note: - We can always add a new attribute if we forgot to add it earlier

We can also modify the given attributes by just changing the value.

To delete attributes and objects we use the simple del,

Output

Similarly,

Output

On the command del f2, this binding is removed and the name f2 is deleted from the corresponding namespace. The object however continues to exist in memory and if no other name is bound to it, it is later automatically destroyed.

 

Note: - class definitions cannot be empty, but if you for some reason have a class definition with no content, put in the pass statement to avoid getting an error.

Hello Python people, for this blog we have taken help from the book Python : The Complete Reference.

Hope all your doubts regarding this are clear now.

If you still have any doubt on this topic then do come to us via email "sophomoretechs@gmail.com" or via Instagram "@coding.winds".

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