INTRODUCTION

Python is a high-level programming language that was initially designed in 1991 by Guido Van Rossum and later on developed by Python Software Foundation. This foundation is a non-profit organization launched in March 2001 that holds the intellectual property rights of Python programming language. Programming with Python is super simple and easy due to its syntax the programmers are able enough to express concepts in fewer lines of code. Even a new

learner can easily learn Python language without facing any problems.

The advancement of technology is mainly due to human-computer interactions. For this interaction, different programming languages have been built over the years that usually refer to high-level languages. Humans use high-level languages due to readability with which humans have made excellent achievements. Low-level language refers to machine codes that are machine-readable only. It is difficult for humans to read and understand the low-level language that is why it was felt necessary to develop high-level languages in order to create multiple ways for human-computer interactions. The high-level languages are easy to write and compile. Nowadays, it is common to see multiple options of the programming languages among which Python language has become a favorite choice of programmers. The Python language can be applied to any computer program regardless of considering the operating system such as Windows, Linux, and Mac, etc. In comparison with other programming languages, no need to change the Python codes for a different operating system but it is a significant disadvantage when it comes to other programming languages such as C, C++, and Java, etc. 

Due to many reasons, Python is preferred and widely used for computer programming.Since 2003, Python programming language ranked in the top 10 programming languages and has been improving consistently from version to version. According to statistics, Python is counted as one of the top 5 programming languages to learn in 2019. It has become an essential part of the programming community due to its flexibility, simplicity, easiness, robustness, speed, versatility, and compatibility. 

Furthermore, technology giants like Google base, Spotify, and Instagram require architectures in Python. In short, Python programming language has become the central figure of the business and programming world. The reasons for its importance are many, but the Python offers the best security and scalability due to which a considerable portion of the business and financial sectors give it the first approach.

Getting started with Python is the same as learning other programming languages, but the codes are different. Learning to Python is like learning any new skill. There is an abundance of

resources on the internet related to Python training and learning that creates confusion for learners to pick the right choice. In this learning guide to Python, learners will be enriched with the key concepts and knowledge to get hands-on the basics and then upgrade to the advanced level. The introduction gives you a solid foundation in the basics and opens up into advanced level. It will not be an exaggeration to consider that the reason behind the success of today’s programmers and the advanced technologies is the Python programming language.

WHY PYTHON?

Readability:

Python is the most readable language among all the high-level programming languages. The structure allows programmers to express vast concepts in some lines of program. Due to its readability, Python is the best choice of today’s programmers.Easy to Learn:

The Python language is easy to learn and compile even new programmers or beginners can easily learn it without facing any problem, but learning the basic structure and concepts is a must thing.

Open Source:

Python language is an open-source programming language. Other communities are also built for the interaction of programmers in different open-source projects related to Python programming language.

Cross-Platform:

Python can run on all the operating systems such as Windows, Linux, and Mac, etc. Unlike other programming languages, it is not necessary to change Python codes for different operating systems. Simply install the software and run your codes.

Large Standard Library:

It contains large standard libraries including functions and some handy codes which can be used to get rid of lengthy codes. A programmer can create a self-built function according to the work they need to perform.

Free Use:

Python is available for free download and use. A programmer can download the Python software free of cost and can use it for long life development. Its source code is available, and one can modify thecode since it is open-source software and its copies can be distributed

freely.

Advanced Features :

Python has many advanced features that make it better than all the other programming languages. The advanced features can be found in Python only such as generators, iterators, and decorators, etc.

Exception Handling:

Exceptions may exist in the code of a programmer but no need to worry, Python supports exception handling that enables a programmer to test codes for exceptions that may happen later. Due to exceptions, a program can crash anytime, and all the codes can appear in front of

users that is also a failure and could be dangerous. Your program can either crashes or can disrupt the normal flow of the program. Using Python exception handling feature, a programmer can write less error prone code with which various scenarios can be tested, and exceptions can be handled.

Automatic Memory Management:

No need to clear or free memories before writing new functions and other handy codes because Python supports automatic memory management that replaces the previous memories with new codes that need to be stored.

What are the applications of Python?Applications of the Python language are amazing and impressive.

Almost all the latest technologies have been built by using Python language. Here are some applications which are flashed out and of great importance.

• Website Development
• Machine Learning
• Data Analysis
• Scripting
• Game Development
• Embedded Application Development
• Desktop Applications

Website development:

There are many Python web frameworks such as Django web framework (the most popular web framework), Pyramid, Flask, web2py, Grok, and TurboGears web frameworks. With these

frameworks, programmers can easily build website applications.

These frameworks help you out in writing server-side code, which helps in managing database, mapping URLs, backend programming logics, etc. Python is a favorite language among programmers, and they are happy with the frameworks based on Python. Google, Quora,

and YouTube are also built with Python language.

Machine learning:

Machine learning in Artificial Intelligence (AI) is of great importance in which Python is mainly used with PyTorch (developed by Facebook) and Tensorflow (developed by Google) etc. There arenumerous machine learning applications built with Python, such as for product recommendation in online shops like Amazon, eBay, Flipkart, etc. are all machine learning algorithms that recognize the interest of users. It is actually a way to write logical codes with

Python, and then the codes are used by machines to learn and solve problems on their own. Many Python-based AI applications are available for face and voice recognition and can be downloaded for free to your smartphone.

Data Analysis:

Python can be used to analyze and visualize data through charts. There are many applications to analyze data both in graphical form and statistical form. The Pandas is a well-known Python library for data analysis, mainly importing data from spreadsheets. A considerable number of spreadsheets can be calculated within seconds by using functions specific to which type of calculation needs to be calculated and analyzed.

Scripting:

Scripting is actually writing codes to develop small applications for simple tasks such as sending automated response emails, private messages, etc. Such small applications can also be developed by using Python programming language.

Game development:

Games can also be developed using the Python language, and there are lots of Python-based game applications available on the internetfor free. Programmers are doing exceptionally well in the game development side by writing huge concepts into fewer lines of code.

Embedded application development:

Python language is used in developing embedded systems like any other programming language. Most of the embedded applications are developed by using C, C++ languages, but nowadays, Python is preferred due to its readability and writing ability.

Desktop applications:

In desktop applications, Python language can be used, and almost all the programmers are using Python language to develop desktop applications. The GUI applications allow users to interact with different electronic devices due to its visualization/visual indicators.

The importance of these applications is now much more with the use of Python language.

THE EVOLUTION OF PYTHON LANGUAGE OVER THE YEARS Python was a hobby project of Guido Van Rossum in 1989. During his office holidays, he decided to work on a project and utilize his time. He named the project as Python language.