Python is the probably easy to learn and nice to use programming language for solving problems on modern computer systems. Making program in Python is very simple no need to define big classes and function although it has OOP power but to write a program you no need to define classes or functions. Guido van Rossum invented the Python programming language in the early 1990s.

Let us understand by the example below

Example 1:

>>> 1+'1'
Traceback (most recent call last): File "<pyshell#0; >", line 1, in 1+'1' TypeError: unsupported operand type(s) for +: 'int' and 'str'
>>> 1+int('1')

In above code, 1+'1' gives error because of different operand type(s).

Example 2:

#!/usr/bin/python print "Hello, Python!";