PYTHON 2 VS PYTHON 3

All you need to know about python 3 and python 2 before you choose one of them.

HELLO WORLD

Python 2 –> print “Hello World”

Python 3 —> print(“Hello World”)

HISTORY OF PYTHON

• 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 – October 2016
• Python 3.7 – June 2018

KEY DIFFERENCES:

COMPARISON	PYTHON 3	PYTHON 2
Release Date	2008	2000
Function print	print(“hello”)	print “hello”
Syntax	simpler	Difficult
Iteration	range()	xrange()
Exceptions	Enclosed in parenthesis	notations
Division of Integers	Results float value	Integer value

BUT WHAT SHOULD I CHOOSE?

When it comes to Python version 2 vs. today, Python 3 is the outright winner. That’s because Python 2 won’t be available after 2020.

Mass Python 3 adoption is the clear direction of the future. After considering declining support for Python 2 programming language and added benefits from upgrades to Python 3, it is always advisable for a new developer to select Python version 3. However, if a job demands Python 2 capabilities, that would be an only compelling reason to use this version.