Python 3 Introduction

Python is a high level, general purpose interpreted and object-oriented programming language. Python is an easy to learn and a powerful language and it is created by Guido van Rossum in late 1989.

Python code does not need to be compiled as it is an interpreted programming language whose code is interpreted at runtime. Python is an interactive programing language meaning you can interact with the interpreter and write lines of code at the prompt (each line of code will be interpreted).

Python becomes more and more popular in recent years. It is ranked the 4th popular programming language in 2017 as declared by TIOBE Programming Community Index. Python is used in a variety of application domain, like but not limited to web development, scientific and numeric, education, graphical user interface (GUI), software development and machine learning.

Features of Python:

Python is a multi-paradigm programming language supporting object-oriented and structured programming. The features of Python include:

Easy to learn:

Python has English keywords and a simple structure with a clear syntax making it easy to learn.

Interpreted:

The code written in Python does not need to be compiled. The code is interpreted (line by line) at runtime.

Portable:

As you do not need to compile the code, therefore, Python is a machine-independent portable programming language. It means that the code written on one system can be interpreted at another system without any errors.

Extensive libraries:

Python contains a standard library of functions. Including these functions in your program will let you create websites, games, databases, etc.

Object-oriented programming:

Along with Functional and Structural programming, Python also supports object-oriented programming which divides the program into classes and objects.

Reasons to learn Python:

The following are some of the reasons to learn Python as your first programming language:

Simple syntax:

Python has a simple syntax which makes it easy to learn and understand. Don’t believe me? Ok consider the example below:

x = 4
y = 2
answer = x + y
print(answer)

So there is no need to specify the data types or writing semicolons at the end of each line or even in print there is no need of using the format string. So this makes Python an easy language.

Not strict language:

Python is not a strict language, You can recall the example above; there is no need to specify data types when defining a variable. You do not need to end each line with a statement terminator.

In Python, when you follow the indentations, it makes easy to understand the code.

Expressive language:

In Python, you do not have to write a bunch of code to perform a simple task. In a programming language when the program contains less number of lines, it is considered to be less complex.