Updated March 30, 2023
Definition of Python 3 Object-Oriented Programming
Python 3 object-oriented programming is a programming paradigm that employs objects and classes. The primary idea behind python 3 object-oriented programming is to combine functions and the data that operate with it into a single unit such that no other parts of the code may access it. System component processes some material at each step of the assembly line, eventually changing raw material into a finished product.
Introducing python 3 object-oriented programming
- The object-oriented programming (OOP) method is a way of organizing a program by grouping similar characteristics and activities into separate objects.
- Objects are similar to the system components in terms of concept. Consider a program like a factory assembly line.
- Data, such as raw or preprocessed materials at each stage on an assembly line, and behavior, such as the action line of assembly performs, are both contained in an object.
- Procedural programming, which focuses on explicit sequencing instructions, object-oriented programming (OOP) focuses on generating reusable patterns of code. When working on complex applications, object-oriented programming allows us to reuse code and produce more understandable code.
- Creating objects is one of the most common ways to address a programming challenge. Object-Oriented Programming is the term for this (OOP).
- An object could, for example, represent a person with attributes such as a name, age, and address, as well as activities like walking and running. It could also represent an email with features such as a recipient list, topic, and text, as well as actions such as attaching files and sending.
- Object-oriented programming, or OOP, is a method for modeling specific, real-world objects, such as cars, as well as relationships between objects, such as corporations.
- Real-world items are represented in OOP as software objects having data and the ability to perform particular tasks.
How to use python 3 object-oriented programmings?
- The below step shows how to use object-oriented programming in python are as follows.
- The main takeaway is that in Python, objects are at the heart of object-oriented programming, not only in terms of expressing data.
1) We can use class in python 3. Below is the example that shows how to use class in python are as follows. A group of objects is referred to as a class. The blueprints or prototypes from objects are formed are contained in a class. It’s a logical entity with some properties and methods.
Code:
class py:
pass
2) Below example shows how to use objects in python are as follows. The object is a separate entity with its own state and behavior. A keyboard, pen, or another real-world object could be used. Objects include integers, strings, and floating-point numbers, as well as arrays and dictionaries.
Code:
obj = py()
3) Below example shows how to use inheritance in python are as follows. The capacity of a class to derive or inherit another class properties is referred to as inheritance.
Code:
class ABC:
def __init__(alphabet):
print("Alphabets")
class PQR(ABC):
def __init__(alphabet):
super().__init__()
print("A-Z Alphabets")
al = PQR()
4) Below example shows how to use encapsulation in python are as follows. Restrict the access of variables and methods this is known as encapsulation because it protects data from direct change.
Code:
class Comp:
def __init__(pr):
pr.__max_pr = 550
c = Comp()
Python 3 object-oriented programming Class
- Python’s class adds classes with the least amount of new syntax and semantics compared to other programming languages.
- It combines the class mechanisms of C++ and Modula-3. Python classes include all of the basic features of Object-Oriented Programming: multiple base classes are supported by the class inheritance process, a derived class can override any method of a base class with the same name.
- Objects can hold any amount and type of data. Classes, like modules, benefit from Python’s dynamic nature.
- Below is the syntax of the python 3 object-oriented programming class is as follows.
Syntax:
class Name_of_class
Statement 1
………
Statement N.- Below is the example of python 3 object-oriented programming class are as follows.
Code:
class ABC:
i = 5347
def f(alpha):
return 'Simple example of python 3 object oriented programming class'
Methods
- Python 3 object-oriented programming methods are defined within a class’s body. They’re used to describe how an object behaves.
- The constructors in Java are identical to the __init__ method. The method can be used to do any type of object initialization.
- It’s always possible to override the methods in our parent class. We may want special or distinct functionality in our subclass, which is why we override the parent’s methods.
- In the below example, we have designed a class and used the self and __init__ methods to create some objects.
class Stud:
str = "student"
def __init__(self, stud_name):
self.stud_name = stud_name
ABC = Stud ("ABC")
PQR = Stud ("PQR")
print("ABC is a {}".format(ABC.__class__.str))
print("PQR is a {}".format(PQR.__class__.str))
print("First stud name is {}".format(ABC.stud_name))
print("Second stud name is {}".format(PQR.stud_name))
Encapsulation
- One of the most essential principles in object-oriented programming is encapsulation (OOP). It discusses the concept of data wrapping as well as the methods that operate with data as a single unit.
- This prevents data from being accidentally modified by limiting direct access to variables and methods.
- An object’s variable can only be updated by an object’s method to avoid unintentional changes. Private variables are variables of this type.
- Below is the example of python 3 object-oriented programming encapsulation are as follows.
Code:
class Alpha:
def __init__(self):
self.p = "Encapsulation"
self.__q = "Encapsulation"
class Derived(Alpha):
def __init__(self):
Alpha.__init__(self)
print("Base class: ")
print(self.__r)
enc = Alpha ()
print(enc.p)
Conclusion
Python is a programming language that may be used in a variety of ways. It supports a variety of programming methods. Python 3 OOP is a programming paradigm in Python that employs objects and classes. The primary idea behind python 3 object-oriented programming is to combine functions and data.
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This is a guide to Python 3 Object-Oriented Programming. Here we discuss the definition, Introduction, How to use python 3 object-oriented programming?, methods, Examples with code implementation. You may also have a look at the following articles to learn more –
