What is Indexing in Python?

what is indexing in python

What is indexing in python: In Python Indexing is the process of extracting individual elements from a given collection.

Whenever there is a data stored in memory they have certain address where they stored and they have some positions upon memory called index positions. Generally the positions starts with 0 up to total number of elements minus 1. Simply 0 to length( variable-1) .

Let’s understand with an example

suppose the above is a string “hello python”, which we are storing in a variable called as str=”hello python”

So the length of this variable is 12 ( including space) and its index position started from 0 & up to 11.

So if we need to extract any element from it we need to mentions its index position.

Now if need to extract character p, we need to write code like below…

str='hello python'
str[6]

#will get output like this
'p'

What is Indexing in Python in Hindi video

Types of Indexing in Python

There are two types of index positions

  • Positive Index Position
  • Negative Index Position

Positive Indexing in Python

Positive indexing in python

In positive indexing system, positive index positions get used where direction of reading elements will be left to right and the count will be start from 0.

From the above string , if I access ‘t’ I have write code like this

str='hello python'
str[8]

't' #Output

Negative Indexing in Python

In negative indexing system, negative index positions get used where direction of reading elements will be right to left and the count will be start from -1 and up to -(length of data or variable).

From the above string , if I need to access ‘t‘ i have to write code like below code

str='hello python'
str[-4]

't' #Output

What is Variable in Python 3?

What is variable in python

Variable is the name given to the memory allocation. This is the simplest definition of variable ever.

What is variable in Python?

It is not like that the definition of variable will be changed in language to language. Whether it’s Python or C or Java, definition of variable remains same that this is the name given to the memory allocation, the value of variable can be changed based on programmers or users requirements.

On moving down to the article you will get to see how to assign the variable in python and more related topic as well.

What is variable in python in Hindi?

Here below I’m embedding one video for the reference

How to assign variable in python?

How to assign variable in python

In the above image variable name is X and its value is 10. So here observe one thing that the assigned value is in right side & the variable is in left.

In python variable direction is always right to left.

How to assign variable in Python in Hindi?

Why Python is Dynamically Typed Language?

Why python is dynamically typed language

That’s why Python is dynamically typed language: In Python, it doesn’t required to declare the types of variable during defining of variable.

The python interpreter automatically defines the type of variable at runtime.

What does dynamically typed mean?

Whenever we define a variable we need to declare that variable’s data type so that compiler can understand what type of data stored in that variable. Without being understanding variable’s data types compiler can’t be able to any operations with this variable and resulting program will be running failed we will not get our desired output.

In some programming languages it doesn’t required to declare the data type at time of defining variable because the interpreter automatically detect the type of variable at run time, this is dynamically typed and those languages support that type are called Dynamically Typed Language.

Those languages executed directly line by line without being compiled by compiler are called interpreted language

What does strongly typed mean?

A strongly typed language requires that every variable or expression be associated with a specific data type, and that the operations performed on those variables or expressions be compatible with their data types.

What is variable declaration:

In programming, variable declaration is a core part of programming where programmer defines the variables for storing data temporarily. The values of that variable can be changed. So here in some programming languages we have to declare the type of variable also which means we need to specify what type of value we are going to store in it.

But in Python its no need to specify data type at the time of variable declaration. In below image you can see the example

Variable Declaration in python

Different Types of data in programming

There are so many data types ( types of value ) in programming it depends upon programming languages includes:

  • String
  • Integer
  • Float
  • Complex
  • List
  • Set
  • Tuple
  • Range
  • Dictionary
  • Boolean, etc etc.

Why Python is Dynamically Typed Language in Hindi?

Explained in 1 minute Why python is dynamically typed language

If you need more content on different concepts of python in hindi, kindly visit my youtube channel Python by Asad and do subscribe it. In this channel I am explaining all the topics in hindi.

Why Python is interpreted language?Know reason?

Why python is interpreted language

That is why Python is interpreted language: Python uses interpreter instead of compiler to compile and run its code so that output will be efficient .

What is interpreted language?

Interpreted language is a language in which the implementation and execution of instructions executes directly without compiling a program into machine language by the interpreter.

Execution process of python code
Execution process of python code ( Interpreted language )

Why Python is interpreted language? In hindi

What is python in hindi? Definition of Python

What is python in hindi

What is python in hindi simply means definition of Python language in hindi.

In this article I am going to write a simple definition of python programming language in English but later in the article a Youtube video will be embedded which is in hindi.

What is python? Definition.

Python is an open source dynamically typed interpreted high level scripting language. It accepts both functional and object oriented programming approach.

What is python in hindi?

Is Python OOPS easy to learn ?

Is python oops easy to learn

Definitely yes, Python’s object-oriented programming (OOP) features are a fundamental part of the language. Python’s syntax is simple and straightforward, which makes it easy for beginners to understand and learn.

Overall, learning OOP in Python can be a relatively simple and straightforward process for those who are new to programming.

Is python oops easy to learn ? More explained.

Python is known for its simple and easy-to-learn syntax, making it a great language for beginners to start with. Its object-oriented programming (OOP) features are also relatively easy to understand and use. Additionally, Python has a large and active community, which means there are many resources available for learning OOP in Python, including tutorials, documentation, and forums. Overall, many people find that Python’s OOP features are easy to learn and use, making it a good choice for beginners who are new to programming.

How python oops is different from java ?

Python and Java are both object-oriented programming languages, but they have some differences in their implementation of OOP.

  • Syntax: Python has a more simple and readable syntax compared to Java. Python’s syntax is designed to be easy to understand, and it requires less boilerplate code than Java.
  • Dynamic Typing: Python is a dynamically-typed language, meaning that the type of a variable is determined at runtime. Java, on the other hand, is a strongly-typed language, which means that the type of a variable must be defined when it is declared.
  • Inheritance: Both Java and Python support single inheritance, but Python also supports multiple inheritance and mixins, which Java does not.
  • Access Modifiers: Java has strict access modifiers (public, private, protected) while Python has less strict access modifiers ( public, protected, _private).
  • Exception Handling: Java and Python both have built-in support for exception handling, but the syntax is different. Java requires the use of try-catch blocks, while Python uses the raise and except keywords.

How can I learn python oops in 1 month ?

The main concept (6 nos. ) of Object Oriented Programming (OOPs) are as follows-

  1. Class
    • Methods
    • Variables
  2. Object
    • State
    • Behavior
    • Identity
  3. Inheritance
    • Single Inheritance
    • Multi-level Inheritance
    • Multiple Inheritance
    • Hierarchical Inheritance
    • Hybrid Inheritance
  4. Polymorphism
    • Compile-time polymorphism (method overloading)
    • Run-time polymorphism (method overriding)
  5. Encapsulation
    • Data member encapsulation
    • Method encapsulation
    • Class encapsulation
  6. Abstraction
    • Data abstraction
    • Process abstraction
OOPS graphical representation
OOPS ( source)

Week 1 : Class & Object ( Learn complete )

Week 2 : Inheritance

Week 3 : Polymorphism

Week 4 : Encapsulation & Abstraction

After learning python oops can I get job ?

Of course, after learning and making a strong basics of python language along with OOPs concepts, there are lots of companies they are constantly hiring python programmer who has a strong knowledge of Object oriented programming by providing a most valued package.

Is it difficult to learn python OOPS in 1 month ?

No, you can learn python oops concepts easily within a month.

How much python developers using OOPS in industry ?

In industry or tech firms those who are python developer or working in this domain are absolutely using python’s every concept but not only constantly using these. It changes based on their projects requirements or task they got assigned.

Why use OOP in python ?

Object-oriented programming (OOP) is a programming paradigm that uses objects and their interactions to design applications and computer programs. OOP in Python allows for the creation of reusable and modular code, as well as the ability to model real-world objects and their relationships in the program. Additionally, OOP in Python provides the ability to encapsulate and hide implementation details, making the code more maintainable and less prone to errors. Overall, OOP in Python can make the development process more efficient and organized.

Easy to learn python OOPS free resources :

Geek For Geeks (” This not promotional recommendation, Personally I learned lots of things ).

FAQ

How much python developer can earn monthly in india ?

Python Developer salary in India ranges between ₹ 1.9 Lakhs to ₹ 9.3 Lakhs with an average annual salary of ₹ 4.2 Lakhs. ( source )

What are the scopes after learning python in 2023 ?

  • Python Developer
  • Data Scientist
  • Web Developer
  • Machine Learning Engineer
  • Test Automation Engineer
  • Data Analyst
  • Educator & lot more.