Python 2.x is an older version of Python. Python 3.x is newer and latest version. Python 2.x is legacy now. Python 3.x is the present and future of this language.
The most visible difference between Python2 and Python3 is in print statement (function). In Python 2, it looks like print “Hello”, and in Python 3, it is print (“Hello”).
String in Python2 is ASCII implicitly, and in Python3 it is Unicode.
The xrange() method has removed from Python 3 version. A new keyword as is introduced in Error handling