Python Introduction

Python

Python is a high level, powerful, and object-oriented programming language.
It is an interpreted scripting language. Guido Van Rossum the founder of python programming.

Learning Python Programming requires to study about installation, control statements, Strings, Lists, Tuples, Dictionary, Modules, Exceptions, Date and Time, File I/O, Programs, etc.

Python is simple and easy to learn and provides lots of high-level data structures. It is a powerful and versatile scripting language which makes it attractive for Application Development.

Python is multipurpose because it can be used with web, enterprise, 3D CAD etc.
There is no  need to use data types to declare variable because it is dynamically typed so we can write y=50 to assign an integer value in an integer variable.

Python Example

Write following code in a file and save with .py extension like hello.py.

print("hello python world!") 
 
After executing.
Output:

hello python world!

I am presenting another very simple python program. This program takes a number as input and reverse it.

n=int(input("Enter any number: "))
rev=0
while(n>0):
    r=n%10
    rev=rev*10+r
    n=n//10
print("Reverse of the number=",rev)

Python Version

Python is updated regularly with new features and supports
A list of python versions with its released date is given below from 1994.

Python Version	Released Date

Python 1.0	January 1994
Python 1.5	December 31, 1997
Python 1.6	September 5, 2000
Python 2.0	October 16, 2000
Python 2.1	April 17, 2001
Python 2.2	December 21, 2001
Python 2.3	July 29, 2003
Python 2.4	November 30, 2004
Python 2.5	September 19, 2006
Python 2.6	October 1, 2008
Python 2.7	July 3, 2010
Python 3.0	December 3, 2008
Python 3.1	June 27, 2009
Python 3.2	February 20, 2011
Python 3.3	September 29, 2012
Python 3.4	March 16, 2014
Python 3.5	September 13, 2015
Python 3.6	December 23, 2016
Python 3.6.4	December 19, 2017